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Title:
LIGHT EMITTER TO BE ATTACHED TO CAPS
Document Type and Number:
WIPO Patent Application WO/2009/093874
Kind Code:
A2
Abstract:
Disclosed is a light emitter to be attached to caps. The light emitter includes a case having a plurality of second lamps (22) formed at a front surface thereof, a power switch attached to an outer surface of the case, a battery installed inside the case to provide power, a guide groove formed at a center of the case, a mounting clip formed at the outer surface of the case, a sub-body having a lamp at a front surface thereof and being coupled to the guide groove, and switch unit for controlling on/off operation of the lamp. The user freely adjusts the distance of radiant light, amount of radiant light and radiation angle of the lamp. The light emitter is fixed to a pocket to radiate light in the forward direction by arranging the sub-body at a right angle with respect to a case.

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Inventors:
SOHN, Dae-up (222-204 Mokdong Apts, 902-1 Mok-don, Yangcheon-gu Seoul 158-752, KR)
Application Number:
KR2009/000383
Publication Date:
July 30, 2009
Filing Date:
January 23, 2009
Export Citation:
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Assignee:
SOHN, Dae-up (222-204 Mokdong Apts, 902-1 Mok-don, Yangcheon-gu Seoul 158-752, KR)
International Classes:
F21V33/00; F21L4/08
Domestic Patent References:
WO2005077215A12005-08-25
Foreign References:
JP2004311188A2004-11-04
US20050128737A12005-06-16
US20070109768A12007-05-17
Other References:
See also references of EP 2235438A2
Attorney, Agent or Firm:
YOON, Yeopyo (Well International, 5 Floor Pungwon Building,52-8, Nonhyeon-dong, Gangnam-gu, Seoul 135-010, KR)
Download PDF:
Claims:
A light emitter to be attached to caps, the light emitter comprising:

a case 2 having a plurality of second lamps 22 formed at a front surface thereof, a power switch 23 attached to an outer surface of the case, a battery installed inside the case to provide power, a guide groove 20 formed at a center of the case, and a mounting clip 26 formed at the outer surface of the case; and

a sub-body 4 having a first lamp 24 at a front surface thereof and being coupled to the guide groove 20.

The light emitter as claimed in claim 1, further comprising a switch unit for controlling on/off operation of the first lamp 24.
The light emitter as claimed in claim 2, wherein the sub-body 4 is provided at an outer surface thereof with a projection 45 which is coupled to a rail groove 202 formed at a side surface of the guide groove 20 such that the sub-body moves back and forth.
The light emitter as claimed in claim 3, wherein the switch unit includes a first contact point 205 installed at the rail groove 202 and a second contact point 206 formed on the sub-body 4.
The light emitter as claimed in claim 1 or 2, wherein the sub-body 4 has a rotation part at a side thereof to adjust a rotation angle of the sub-body.
The light emitter as claimed in claim 5, wherein the rotation part includes a first gear 271 formed at a rear side of the sub-body 4 and a second gear 272 engaged with the first gear 271.
The light emitter as claimed in claim 5, wherein the rotation part is provided with a brightness adjustment member for adjusting brightness according to the rotation angle of rotation part.
The light emitter as claimed in claim 7, wherein the brightness adjustment member has a multi-contact structure.
The light emitter as claimed in claim 1, wherein the sub-body 4 further includes an auxiliary battery.
The light emitter as claimed in claim 2, wherein the switch unit includes:

a positive terminal and at least one negative terminal electrically connected to the battery; and

a negative plate and at least one positive plate formed on the sub-body 4.

The light emitter as claimed in claim 1, wherein the sub-body 4 is further provided with a fixing member 2720 for maintaining the sub-body in an advanced state.
The light emitter as claimed in claim 11, wherein the fixing member 2720 includes a protruding member formed at both sides of the second gear 272 and a recess 2024 formed at both sides of a front part of the guide groove 20 corresponding to the protruding member.
The light emitter as claimed in claim 5, wherein the rotation part includes a groove formed at a rear side of the sub-body 4 and an elastic protrusion 50 inserted into the groove.
The light emitter as claimed in claim 13, wherein the groove formed at the rear side of the sub-body 4 includes a fixing groove 40, a first groove 41, a second groove 42 and a third groove 43, and

the elastic protrusion 50 is inserted into the fixing groove 40 and the first to third grooves 41 to 43 to fix a position of the sub-body.

The light emitter as claimed in claim 14, wherein

the first groove 41 is formed on an upper horizontal surface of the rear side of the sub-body 4,

the fixing groove 40 is formed at a front side of the first groove 41,

the second groove 42 is formed at a connection part of the upper horizontal surface of the sub-body 4 and a curved surface part of a rear end of the sub-body, and

the third groove 43 is formed at a center of the curved surface part of the rear end of the sub-body.

A light emitter to be attached to caps, the light emitter comprising:

a case 2a having a fixed lighting part 5a, which is formed at a front side of the case and is equipped with a second lamp 42a, a power switch 25a formed at an outer surface of the case 2a, a power supply part formed at a rear side of the case 2a to provide power, and a mounting clip 26a formed at the outer surface of the case 2a; and

a sub-body 4a, which is provided with a first lamp 41a and is coupled to a side of the fixed lighting part 5a, and which moves back and forth to turn on/off the first lamp 41a and is rotated

The light emitter as claimed in claim 16, wherein the sub-body 4a has a rotation part formed at a side of the sub-body 4a such that an angle of the sub-body 4a is adjusted, in which the rotation part includes a guide groove 3a formed in the case 2a and a projection 40a which is formed at a side of the sub-body 4a and is coupled to the guide groove 3a such that the sub-body 4a is rotated.
The light emitter as claimed in claim 17, wherein the guide groove 3a includes a horizontal part 30a having a predetermined length and a curved part 36a which is connected to the horizontal part 30a and is bent in an arc-shape, in which a recess 35a is formed at a lower part of the horizontal part 30a such that the projection 40a is locked with the recess 35a.
The light emitter as claimed in claim 18, wherein a plurality of studs making contact with the projection 40a are formed in the guide groove 3a such that the sub-body 4a is fixed in various angular positions.
The light emitter as claimed in claim 19, wherein the studs 31a include first to third studs 31a to 33a, in which the first stud 31a is formed on the horizontal part 30a to maintain a state in which the projection 40a is withdrawn from a recess 35a and then moves forward along the horizontal part 30a,

the second stud 32a is formed in a middle of the curved part 36a to maintain a state in which the projection 40a rotates downward by about 45 degrees, and

the third stud 33a is formed at an end of the curved part 36a to maintain a state in which the projection 40a rotates by 90 degrees.

The light emitter as claimed in claim 16, wherein the sub-body 4a further includes a brightness adjustment member to adjust brightness according to a rotation angle of the sub-body 4a.
The light emitter as claimed in claim 16, wherein the power supply part includes a battery accommodation part 22a formed at an inner rear side of the case 2a and a cover 23a, which is coupled to the battery accommodation part 22a and opens/closes the accommodation part 22a in such a manner that a battery b can be replaced without completely separating the battery accommodation part 22a.
The light emitter as claimed in claim 22, wherein the battery accommodation part 22a includes positive and negative contact terminals, which are formed at an inner upper part and an inner lower part of the battery accommodation part 22a and make contact with the battery b, respectively, and a joint slot 221 to couple the cover 23a to both sides of the battery accommodation part 22a.
The light emitter as claimed in claim 22, wherein the case 2a has a semicircular bulge section 21a, which is projected while communicating with a front end of the battery accommodation part 22a, and

a leading part 232a having a tip projection 233a is formed at front both ends of the cover 23a in a predetermined length, and a semicircular projection 234a is formed in a front middle part of the cover 23a and is inserted into the bulge section 21a,

wherein, if a rear end of the cover 23a is rotated upward, the semicircular projection 234a is rotated downward such that the battery b is lowered.

A light emitter to be attached to caps, the light emitter comprising:

a case 2b; and

a sub-body 4b,

wherein the case 2b includes a coupling part 29b, which is formed at a front side of the case 2b and to which the sub-body 4b is hinged, a power supply part X formed at a rear side of the case 2b to supply power and a mounting clip 26 formed at an outer surface of the case 2b,

the sub-body 4b has a first lamp 41b mounted thereon and is hinged to the coupling part 29b,

the power supply part X includes a battery accommodation part 22b, which has an upper part having an opening, and a battery cover 23b, which is coupled to the opening of the battery accommodation part 22b and is rotated to perform on/off functions.

The light emitter as claimed in claim 25, wherein the battery accommodation part 22b has a circular shape and includes a coupling groove 221b, which is formed at an inner circumference of the battery accommodation part 22b, an insertion groove 222b, which is formed perpendicularly to the coupling groove 221b while communicating with the coupling groove 221b, a negative contact terminal 223b formed at a lower part of the battery accommodation part 22b, and a positive contact terminal 224b formed in the inner circumference of the battery accommodation part 22b,

wherein the battery cover 23b is provided in a center of an inner surface with an electrical contact member 5b, which makes contact with an anode of a battery and includes a plurality of electrical contact sections 52b and a current terminal 54b making contact with the positive contact terminal 224b, in which the battery cover 23b is provided at an outer circumference thereof with a locking protrusion 232b which is inserted into the insertion groove 222b.

The light emitter as claimed in claim 26, wherein the current terminal 54b makes contact with the positive contact terminal 224b as the battery cover 23b is rotated in a predetermined direction, thereby activating electrical current so that the first lamp 41b is turned on, and

the contact terminal 54b is separated from the positive contact terminal 224b as the battery cover 23b is reversely rotated, resulting in a locking state and turning off the first lamp 41b.

The light emitter as claimed in claim 26, wherein a central projection shaft 234b is formed in the center of the inner surface of the battery cover 23b and an auxiliary projection shaft 235b is formed at a side of the central projection shaft 234b, and wherein a central hole 55b, into which the central projection shaft 234b is inserted, is formed in a middle part of the electrical contact member 5b, and an auxiliary insertion hole 56b, into which the auxiliary projection hole 235b is inserted, is formed at a side of the central hole 55b.
The light emitter as claimed in claim 28, wherein a handle 236b and a catching projection 237b are projected from an outer surface of the battery cover 23b, thereby providing easy operation of the light emitter, and wherein

the handle 236b has a fan shape, which is getting wider from a center portion to a periphery of the batter cover 23b, and is projected upwardly from the battery cover 23b while extending beyond an outer diameter of the battery cover 23b.

The light emitter as claimed in claim 25, wherein the sub-body 4b is provided at an outer surface thereof with a protrusion 43b, which allows a user to easily catch the light emitter, and a terminal 44b, which makes contact with an inner surface of the coupling part 29b of the case 2b while producing friction, and wherein

the terminal 44b is bent in an arc shape and has a hollow, which allows an interconnection to pass therethrough, and a flat part, which is formed at an outer middle part of the terminal 44b to maintain a rotation angle of the sub-body 4b.

The light emitter as claimed in claim 25, wherein a plurality of guide protrusions 292b are formed lengthwise along the inner surface of the coupling part 29b of the case 2b such that the guide protrusions 292b make contact with the terminal 44b while producing friction.
The light emitter as claimed in claim 30, wherein a plurality of linear grooves 42b are formed lengthwise along a lower surface of the sub-body 4b, thereby ensuring a desired visual field.
Description:
LIGHT EMITTER TO BE ATTACHED TO CAPS

The present invention relates to a light emitter to be attached to caps. More particularly, the present invention relates to a light emitter to be attached to caps, in which the light emitter is detachably installed on a visor of the cap to provide a visual field to a user.

In general, a user puts on a cap to protect the face from sunlight and prevent sweat from running down to the face when climbing mountains or fishing.

If a light emitting device is mounted on a visor of the cap, two hands are set free, so that activity of the user is improved. In addition, radiation direction of the light emitting device matches with the sight line, so the user can easily obtain a visual field.

In order to utilize such advantages, applicant of the present invention has filed “a light emitter to be attached to caps”, Korean Utility Model Registration No. 0312151, which corresponds to U.S. Patent Nos. 7,118,241 and 7,163,309, and Canadian Patent No. 2,535,295.

FIG. 1 is a view representing a light emitter according to the related art.

As shown in FIG. 1, a light emitter to be attached to caps includes a case 22 forming a body, a plurality of lamps 24 installed at a front side of the case 22 while being spaced apart from each other, a switch member 26 installed at a side of the case 22, a clip 28, which is integrally coupled with the case 22 to have elasticity, and a battery accommodated in the case 22.

However, according to the related art, since the lamps installed at the front side of the case are simultaneously turned on or off by a single switch member, the light emitter has a difficulty in adjusting the distance or amount of radiant light, or in saving the battery.

Also, when the light emitter to be attached to caps is carried in a knapsack or a pocket, the switch can be turned on regardless of the intention of a user. In this case, the lamps may be turned on simultaneously, so that the battery may be rapidly discharged in contrast with user’s intention.

In addition, since all of the lamps are fixedly directed in the forward direction, if the user wants to change the radiation direction, the user must turn the head of the user to the intended direction.

Furthermore, in the case of a short range radiation, a small quantity of radiation is required as compared with that of a long range radiation. However, the conventional light emitter can not adjust the amount of radiant light according to the radiation range.

The present invention has been made to solve the above problem occurring in the prior art, and an object of the present invention is to provide a light emitter to be attached to caps, which is an improvement of Korean Utility Model Registration No. 0312151. According to the light emitter of the present invention, some of a plurality of lamps are independently turned on/off through back and forth movement, and an angle of the individual lamp can be adjusted such that the radiation direction of the lamp can be changed in upper and lower directions, and the amount of radiant light can be changed by adjusting the angle, thereby ensuring convenience of the user.

In addition, another object of the present invention is to provide a light emitter to be attached to caps, in which some lamps, which are independently adjusted, are set to have a strong luminosity as compared with that of the remaining lamps so that the user can utilize the lamps with various combinations while saving the battery.

Still another object of the present invention is to provide a light emitter to be attached to caps, in which an additional switch unit is provided to prevent a battery from being unintentionally discharged even if a power switch is turned on by mistake.

Still yet another object of the present invention is to provide a light emitter to be attached to caps, in which an auxiliary battery is provided at the lamp equipped with the additional switch unit such that the lamp can be operated regardless of the discharge state of a main battery.

Still yet another object of the present invention is to provide a light emitter to be attached to caps, in which the light emitter can be fixed to a shirts pocket of the user to radiate light in the front direction when some lamps, which are independently adjusted, are arranged at a right angle.

The foregoing and and/or other aspects of the present invention are achieved by providing a light emitter including a case having a plurality of second lamps formed at a front surface thereof, a power switch attached to an outer surface of the case, a battery installed inside the case to provide power, a guide groove formed at a center of the case, a mounting clip formed at the outer surface of the case, and a sub-body having a lamp at a front surface thereof and being coupled to the guide groove to move back and forth or rotate, and a switch unit, which allows the lamp to be turned on upon a forward movement of the sub-body and turned off upon a backward movement of the sub-body.

As described above, according to the present invention, the user can adjust the distance of radiant light and the amount of radiant light by moving a sub-body equipped with a first lamp back and forth such that the first lamp is independently turned on. In addition, the sub-body is rotated such that the user can adjust the radiation angle without moving the head of the user. If the sub-body is arranged at a right angle with respect to a case, the light emitter can be fixed to a shirts pocket or a belt to radiate light in the forward direction, thereby ensuring convenience of the user.

In addition, the light emitter provides a complex function, in which the light is turned on/off in a forward direction as a rescue signal and irradiated downward the pedestrian’s foot to help safety walking.

In addition, an additional switch unit for a first lamp is provided such that the user can adjust the amount of battery consumption.

FIG. 1 is view representing a light emitter according to the related art;

FIG. 2 is a perspective view representing a light emitter to be attached caps according to the first embodiment of the present invention;

FIG. 3 is a plan view representing the light emitter to be attached to the cap according to the first embodiment of the present invention;

FIG. 4 is a side view representing the light emitter to be attached to the cap according to the first embodiment of the present invention;

FIG. 5 is an exploded perspective view representing a light emitter to be attached to caps according to a second embodiment of the present invention;

FIGS. 6 to 9 are enlarged views representing a switch unit applied to the second embodiment of the present invention, wherein FIG. 6 represents a state in which a sub-body moves backward, FIG. 7 represents a state in which the sub-body moves forward, FIG. 8 represents a state in which the sub-body rotates downward by a predetermined angle, and FIG. 9 represents a state in which the sub-body rotates into an upright position;

FIG. 10 is a perspective view representing a light emitter to be attached to caps according to the third embodiment of the present invention;

FIG. 11 is a bottom exploded perspective view of the light emitter to be attached to the cap according to the third embodiment of the present invention;

FIGS. 12 and 13 are side views representing a battery cover being separated from a light emitter according to the third embodiment of the present invention;

FIG. 14 is a perspective view representing a light emitter to be attached to caps according to the fourth embodiment of the present invention;

FIG .15 is a bottom exploded perspective view of the light emitter to be attached to the cap according to the fourth embodiment of the present invention; and

FIGS. 16 and 18 are side views sequentially representing processes for assembling a battery cover and turning on/off the light emitter according to the fourth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Embodiment 1

FIG. 2 is a perspective view representing a light emitter to be attached to caps according to a first embodiment of the present invention, FIG. 3 is a plan view representing the light emitter to be attached to the cap according to the first embodiment of the present invention, and FIG. 4 is a side view representing the light emitter to be attached to the cap according to the first embodiment of the present invention.

As shown in FIGS. 2 to 4, a light emitter A1 to be attached to caps according to a first embodiment of the present invention includes a case 2 having a plurality of second lamps 22 formed at a front surface thereof, a power switch 23 attached to an outer surface of the case 2, a battery installed inside the case 2 to provide power, a guide groove 20 formed at a center of the case 2, and a mounting clip 26 formed at the upper surface of the case 2, a sub-body 4 having a first lamp 24 at a front surface thereof and being coupled to the guide groove 20 to move back and forth or rotate, and a switch unit for controlling on/off operation of the first lamp 24.

Hereinafter, the elements of the light emitter A1 will be described in more detail.

As shown in FIG. 2, the case 2 has the clip 26 formed at an upper surface of the case 2, the guide groove 20 formed at the front middle part of the case 2 and extending inward of the case 2 by a predetermined length, the second lamps 22 formed at both sides of the guide groove 20 at the front surface of the case 2, the battery mounted inside the case 2 to provide power, and the power switch 23 formed at an outer surface of the case 2.

The guide groove 20 is formed by slitting the middle part of the case 2 inward of the case 2. A rail groove 202 is formed lengthwise along inner both sides of the guide groove 20.

For convenience sake, the guide groove 20 is illustrated to be seen from the outside in the drawings. However, preferably, a cover surface may be formed on an upper part of the guide groove 20 in the same plane with the upper surface of the case 2.

The sub-body 4 has the first lamp 24 formed at the front surface thereof, and slides back and forth or rotates in a state in which the sub-body 4 is inserted into the guide groove 20.

The forward movement of the sub-body 4 represents that the sub-body 4 is pulled out of the case 2 and the backward movement of the sub-body 4 represents that the sub-body 4 is inserted into the case 2.

According to an example of a structure enabling the sliding movement of the sub-body 4 back and forth, as shown in FIGS. 3 and 4, the rail groove 202 is formed at a side surface of the guide groove 20, and a projection 45 is formed on the sub-body 4 such that the sub-body 4 slides back and forth in a state in which the projection 45 is coupled to the rail groove 202.

According to another embodiment, a cover surface extending from upper/lower surfaces of the case 2 is formed such that the sub-body 4 is inserted into the case 2. In this case, the rail groove 202 can be formed on the cover surface other than the side surface of the guide groove 20, and the projection 45 corresponding to the rail groove 202 is formed at upper/lower surfaces of the sub-body 4. Various modifications for the back/forth movement structure may be apparent to those skilled in the art.

A structure for rotating the sub-body 4 will be described later.

The switch unit allows the first lamp 24 to be turned on upon the forward movement of the sub-body 4 and to be turned off upon the backward movement of the sub-body 4.

As shown in FIGS. 3 and 4, as an example, the switch unit includes a first contact point 205 installed at a front side of the rail groove 202 and a second contact point 206 formed at an outer circumference of the projection 45 of the sub-body 4.

That is, when the sub-body 4 moves forward, the second contact point 206 makes contact with the first contact point 205, so that power is provided, thereby turning on the first lamp 24. In addition, when the sub-body 4 moves backward, the second contact point 206 is separated from the first contact point 205, so that the first lamp 24 is turned off.

On the contrary, the switch unit can be set such that the first lamp 24 is turned off upon the forward movement of the sub-body 4 and turned on upon the backward movement of the sub-body 4. That is, the first contact point 205 may be installed at a rear side of the rail groove 202 such that the first contact point 205 and the second contact point 206 make contact with each other and the first lamp 24 is turned on when the sub-body 4 moves backward. Otherwise, the contact points may be installed corresponding to a rear side of the sub-body 4 and the guide groove 20.

Meanwhile, the sub-body 4 is provided with a rotation part 27 such that the sub-body 4 is rotated by the rotation part 27 to adjust the angle of the sub-body 4.

That is, in a state in which the first lamp 24 is turned on upon the forward or backward movement of the sub-body 4, the sub-body 4 rotates downward to irradiate light downward, so that a user can easily view a substance positioned within a short distance.

As shown in FIGS. 2 and 4, as an example, the rotation part 27 includes a first gear 271 formed at a rear side of the sub-body 4 and a second gear 272 engaged with the first gear 271.

Meanwhile, the sub-body 4 further includes a fixing member 2720 configured to maintain an advanced state of the sub-body 4.

As shown in FIG. 3, the fixing member 2720 includes a protruding member formed at both sides of the second gear 272 and a recess 2024 formed at front both sides of the guide groove 20 corresponding to the protruding member.

Preferably, the recess 2024 is formed inside the rail groove 202.

In detail, the protruding member includes a iron ball 2721 buried at an end of a shaft rod formed at both sides of the second gear 272 and a spring 2722 installed to elastically support the iron ball 2721.

Accordingly, if the sub-body 4 moves forward, the second gear 272 moves forward in cooperation with the sub-body 4, and the protruding member is inserted into the recess 2024, so that the sub-body 4 is fixed in the advanced state.

In addition, in the fixing member 2720 according to another embodiment, the recess 2024 can be additionally provided at rear both sides of the guide groove 20 such that fixing strength is applied in a state in which the sub-body 4 moves backward.

However, the position of the protruding member and the recess 2024 of the fixing member 2720 is not limited to the both sides of the second gear 272 and the rail groove 202 as described in the present embodiment, but can be modified according to the intention of a designer.

Meanwhile, the rotation part 27 further includes a brightness adjustment member (not shown) such that brightness of the first lamp 24 can be adjusted according to the rotation angle of the sub-body 4.

Preferably, the brightness adjustment member allows the first lamp 24 to have a low brightness upon downward rotation of the sub-body 4 and have a high brightness upon upward rotation of the sub-body 4.

That is, since the sub-body 4 is rotated downward for a short distance radiation, strong brightness is not necessary. Also, since the sub-body 4 is rotated upward for a long distance radiation, strong brightness is needed such that fatigue of the eyes of the user is relieved in the long distance radiation.

Since the brightness adjustment member is generally known in the art, the detailed description of the brightness adjustment member will be omitted. However, the brightness adjustment can be achieved by fabricating the rotation part 27 having a multi-contact point structure, and the brightness adjustment mechanism will be described in detail by a second embodiment.

In addition, the first lamp 24 uses a high brightness LED brighter than the second lamp 22. Accordingly, the lamps are selectively used according to surrounding situations.

Meanwhile, in case that the battery is discharged, an auxiliary battery is accommodated in the sub-body 4 or an auxiliary switch is installed on the sub-body 4. Otherwise, an auxiliary battery for the first lamp 24 is accommodated in the case 2.

Accordingly, even when the second lamp 22 is not turned on due to discharge of the battery, the first lamp 24 of the sub-body 4 can emit light by the auxiliary battery.

Hereinafter, a coupling structure and an operation of the light emitter A1 described above will be explained.

The sub-body 4 is inserted into the guide groove 20 of the case 2 such that the projection 45 is coupled into the rail groove 202.

After that, the battery is installed in the case 2.

The light emitter A1 coupled as described above is coupled to a visor of the cap using the clip 26.

After that, if the power switch 23 is switched on, the second lamp 22 is turned on, but the first lamp 24 is turned off.

If the sub-body 4 moves forward to turn on the first lamp 24, the first and second contact points 205 and 206 make contact with each other, so that the first lamp 24 is turned on.

Otherwise, as described above, the light emitter A1 is fabricated such that the first lamp 24 is turned on when the sub-body 4 moves backward. Such an on/off operation is selectively applied to the light emitter A1 according to the intention of user. The battery life can be extended through such an operation.

After that, the sub-body 4 is rotated by the user to set a proper radiation angle.

In this case, if the sub-body 4 is rotated downward, brightness of the first lamp 24 is lowered, and if the sub-body 4 is rotated upward, brightness of the first lamp 24 becomes high.

The light emitter A1 can be operated in contrary to the operation described above according to the intention of user, or the light emitter A1 can be operated at a constant brightness.

As a result, even if the power switch 23 is unintentionally switched on when the light emitter A1 is carried in the pocket, the second lamp 22 is turned on, but the first lamp 24 is turned off. Accordingly, discharge of the battery is delayed, so the user can check the battery before the battery is completely discharged.

Accordingly, the battery is prevented from being completely discharged, so that lightening function of the light emitter A1 is maintained. In particular, since the auxiliary battery for the sub-body 4 is provided in the light emitter A1, even if the brightness of the second lamp 22 is rather lowered, the function of the first lamp 24 can be maintained, thereby ensuring the lightening function.

Embodiment 2

Meanwhile, FIG. 5 is an exploded view representing a light emitter A2 to be attached to caps according to a second embodiment of the present invention.

FIGS. 6 to 9 are enlarged views representing a switch unit used in the second embodiment of the present invention, FIG. 6 represents a state in which the sub-body moves backward, FIG. 7 represents a state in which the sub-body moves forward, FIG. 8 represents a state in which the sub-body rotates downward by a predetermined angle, and FIG. 9 represents a state in which the sub-body rotates into upright position.

As shown in FIGS. 5 to 9, the switch unit according to the second embodiment includes a positive terminal 51 and first to third negative terminals 52 to 54, which are formed on a main electrode plate 500 electrically connected to a battery 100, and a negative plate 71 and first to third positive plates 72 to 74 that are formed on the sub-body 4 and make contact with the positive terminal 51 and the first to third negative terminals 52 to 54, respectively.

The positive terminal 51 and the first to third negative terminals 52 to 54 are formed in a cantilever type on the main electrode plate 500, which is connected to the battery 100, to be supported by an outer surface of the sub-body 4.

The negative plate 71 and the first to third positive plates 72 to 74 have a band shape. Preferably, the negative plate 71 is formed at the rear side of the sub-body 4 in a length longer than that of the first to third positive plates 72 to 74.

In particular, the negative plate 71 has a shape corresponding to the positive terminal 51, and the first to third positive plates 72 to 74 have a shape corresponding to the first to third negative terminals 52 to 54.

Accordingly, when the sub-body 4 is pulled forward, the negative plate 71 makes contact with the positive terminal 51, and the first positive plate 72 makes contact with the first negative terminal 52 to provide power, so that the first lamp 24 is turned on.

In contrary, when the sub-body 4 moves backward, the negative plate 71 and the first positive plate 72 are separated from the positive terminal 51 and the first negative terminal 52, respectively, so that the first lamp 24 is turned off.

Meanwhile, as shown in FIGS. 6 to 9, the rotation part according to another embodiment includes a groove formed at a rear side of the sub-body 4 and elastic protrusions 50 inserted into the groove.

The groove includes a first groove 41, a second groove 42 and a third groove 43 that are formed at a rear end of the sub-body 4 to set a rotation angle.

The elastic protrusion 50 is inserted into a fixing groove 40 and the first to third grooves 41 to 43 to fix a position of the rotation part.

A curved surface part having an arc shape is formed at the rear end of the sub-body 4.

As shown in FIG. 8, the first groove 41 is formed on an upper horizontal surface of the sub-body 4 at the rear side of the sub-body 4 corresponding to the second and third negative terminals 53 and 54.

As shown in FIG. 8, a plurality of fixing grooves 40 are formed at a front side of the first groove 41 such that the elastic protrusion 50 is inserted into the fixing groove to maintain a state in which the sub-body 4 moves backward.

The fixing grooves 40 are formed on a position corresponding to the positive terminal 51 and the first to third negative terminals 52 to 54.

As shown in FIG. 9, the second groove 42 is formed on a part in which the upper horizontal surface and the rear curved surface part of the sub-body 4 are connected to each other. In particular, the second groove 42 is formed on a position corresponding to the first and third negative terminals 52 and 54.

As shown in FIG. 9, the third groove 43 is formed in the center of the rear curved surface part on a position corresponding to the first and second negative terminals 52 and 53.

The elastic protrusion 50 according to the present embodiment is formed by bending an end of the positive terminal 51 and the first to third negative terminals 52 to 54 downward.

However, the structure of the elastic protrusion 50 is not limited to the present embodiment. The elastic protrusion 50 and the grooves 40 to 43 according to another embodiment can be additionally formed in the guide groove 20.

Hereinafter, the operation of the sub-body 4 will be described.

As shown in FIG. 6, if the sub-body 4 moves backward, the elastic protrusions 50 of the positive terminal 51 and the first to third negative terminals 52 to 54 are fixedly inserted into the fixing groove 40. At this time, the first lamp 24 represents a turn-off state.

After that, as shown in FIG. 7, the sub-body 4 moves forward such that the elastic protrusions 50 of the second and third negative terminals 53 and 54 are fixedly inserted into the first groove 41.

Therefore, the positive terminal 51 makes contact with the negative plate 71 and the first negative terminal 52 makes contact with the first positive plate 72 to provide the first lamp 24 with power, so that the first lamp 24 is turned on.

As shown in FIG. 8, if the sub-body 4 is rotated downward by a predetermined angle, the elastic protrusions 50 of the first negative terminal 52 and the third negative terminal 54 are inserted into the second groove 42, thereby fixing the rotated state of the sub-body 4.

In this condition, the positive terminal 51 is still in contact with the negative plate 71, and the second negative terminal 53 comes into contact with the second positive plate 73 to provide power for the first lamp 24, thereby turning on the first lamp 24.

After that, as shown in FIG. 9, the sub-body 4 further rotates to form an upright state, so that the elastic protrusions 50 of the first and second negative terminals 52 and 53 are fixedly inserted into the third groove 43.

At this time, the positive terminal 51 is still in contact with the negative plate 71, and the third negative terminal 54 makes contact with the third positive plate 74 to provide the first lamp 24 with power, so that the first lamp 24 is turned on.

The number of grooves formed in the sub-body 4 and the setting angle of the grooves can be changed according to the embodiments.

The brightness of the first lamp 24 according to the second embodiment can be changed corresponding to the rotation angle of the sub-body 4 similarly to the first embodiment. The brightness can be adjusted by adopting a multi-point structure.

In detail, as described above, a plurality of terminals and electrode plates are provided on the sub-body 4 such that a plurality of contact points are connected to a printed circuit board (not shown) installed in the light emitter A2. In this case, a circuit of the printed circuit board can be designed such that different amount of current can be applied to the contact points, respectively. Thus, the brightness can be changed depending on the connection state of the contact points with respect to the circuit caused by the rotation of the sub-body 4.

Preferably, as shown in FIG. 6, in the case that the sub-body 4 is horizontally withdrawn, the first lamp 24 has the strongest luminosity.

As shown in FIG. 7, in the case that the sub-body 4 is slantingly rotated, the first lamp 24 emits light at relatively weak intensity.

As shown in FIG. 8, in the case that the sub-body 4 is rotated in the upright state, the first lamp 24 emits light at the weakest intensity.

The above embodiments have illustrative purposes, and the present invention is not limited thereto. The adjustment of the brightness can be modified in various forms.

Embodiment 3

FIG. 10 is a perspective view representing a light emitter to be attached to caps according to the third embodiment of the present invention, FIG. 11 is a bottom exploded perspective view of the light emitter to be attached to the caps according to the third embodiment of the present invention, and FIGS. 12 and 13 are side views representing a battery cover being separated from the light emitter according to the third embodiment of the present invention.

As shown in FIGS. 10 to 11, the light emitter A3 to be attached to the caps according to the third embodiment of the present invention includes a case 2a and a sub-body 4a. The case 2a has a fixed lighting part 5a, which is formed at a front side of the case 2a and is equipped with a second lamp 42a, a power switch 25a formed at an outer surface of the case 2a, a power supply part formed at a rear side of the case 2a to provide power, and a mounting clip 26a formed at the outer surface of the case 2a. The sub-body 4a is provided with a first lamp 41a and is coupled to a side of the fixed lighting part 5a. The sub-body 4a moves back and forth to turn on/off the first lamp 41a and is rotated.

The power switch 25a is installed at a lower part of the case 2a to control on/off operations of the fixed lighting part 5a.

The first and second lamps 41a and 42a include LEDs, and may have brightness different from each other.

The sub-body 4a is formed at a side thereof with a rotation part such that an angle of the sub-body 4a is adjusted. The rotation part includes a guide groove 3a formed in the case 2a and a projection 40a, which is formed at a side of the sub-body 4a and is coupled to the guide groove 3a such that the sub-body 4a is rotated.

The guide groove 3a includes a horizontal part 30a having a predetermined length and a curved part 36a, which is connected to the horizontal part 30a and is bent in an arc-shape. A recess 35a is further formed at a lower part of the horizontal part 30a such that the projection 40a is locked with the recess 35a.

In addition, a plurality of studs making contact with the projection 40a are formed in the guide groove 3a such that the sub-body 4a can be fixed at various angular positions. According to the present embodiment, three studs are provided. For convenience’s sake, the three studs are referred to as first to third studs 31a to 33a, respectively.

The first stud 31a is formed on the horizontal part 30a to maintain a state in which the projection 40a is withdrawn from a recess 35a and then moves along the horizontal part 30a. The second stud 32a is formed in a middle of the curved part 36a to maintain a state in which the projection 40a rotates downward by about 45 degrees, and the third stud 33a is formed at an end of the curved part 36a to maintain a state in which the projection 40a rotates by 90 degrees.

A plurality of ring shaped concave-convex sections 45a are formed at an outer surface of the sub-body 4a. Thus, a user can easily catch the sub-body 4a, so that the sub-body 4a can be easily inserted and rotated.

In addition, an operation notch 43a having an arc shape is formed at a rear end of the sub-body 4a such that the user can easily put a nail tip in the operation notch.

Accordingly, in a state in which the light emitter according to the present invention is installed by mounting the clip 26a on the cap, the user can easily move the sub-body 4a forward by engaging the thumb nail of the user with the operation notch 43a and pushing the sub-body 4a. In addition, the user can easily adjust the rotation angle of the sub-body 4a by rotating the sub-body 4a using the ring shaped concave-convex section 45a and.

Similarly to the first embodiment, the light emitter A3 according to the third embodiment further includes a brightness adjustment member such that brightness of the first lamp 41a is adjusted according to the rotation angle of the sub-body 4a.

The brightness adjustment member is fabricated such that brightness of the first lamp 41a is lowered when the sub-body 4a is rotated downward, and brightness of the first lamp 41a becomes high if the sub-body 4a is rotated upward.

That is, since the sub-body 4a is rotated downward for a short distance radiation, strong brightness is not necessary. Also, since the sub-body 4a is rotated upward for a long distance radiation, strong brightness is needed such that fatigue of the eyes of the user is relieved in the long distance radiation.

The light emitter A3 can be operated in contrary to the operation described above according to the intention of user.

Since the brightness adjustment member and switch unit formed on the sub-body 4a have been described through the second embodiment, description thereof will be omitted in order to avoid redundancy.

As shown in FIGS. 11 to 13, the power supply part includes a battery accommodation part 22a formed at an inner rear side of the case 2a and a cover 23a, which is coupled to the battery accommodation part 22a and opens/closes the accommodation part 22a in such a manner that a battery b can be replaced without completely separating the battery accommodation part 22a.

The battery accommodation part 22a includes positive and negative contact terminals, which are formed at an inner upper part and an inner lower part of the battery accommodation part 22a and make contact with the battery b,respectively, and a joint slot 221 formed to couple the cover 23a to both sides of the battery accommodation part 22a.

The cover 23a has a plate shape and is large enough to cover the battery accommodation part 22a. A leading part 232a having a tip projection 233a is formed at front both ends of the cover 23a in a predetermined length. The tip-projection 233a of the leading part 232a is inserted into the joint slot 221a and is slid inwardly, so that the cover 23a is coupled to the case 2a. In addition, as shown in FIG. 12, if the cover 23a is pulled backward by a distance corresponding to a length of the joint slot 221a and then is rotated downward about the tip projection 233a, thereby forming a space such that the battery b is separated.

Further, as shown in FIG. 13, when the cover 23a is rotated downward, a front side of the battery b having an end accommodated in the battery accommodation part 22a is pushed such that a rear side of the battery b is lifted, so the battery b is easily held with the fingers of user. As a result, the battery b can be easily separated from the battery accommodation part 22a.

That is, as shown in FIG. 11, the case 2a has a semi-circular bulge section 21a, which is projected while communicating with a front end of the battery accommodation part 22a. Since a semicircular projection 234a, which is inserted into the bulge section 21a, is formed in the middle of a front side of the cover 23a, when a rear end of the cover 23a is rotated downward, the semicircular projection 234a rotates together with the cover 23a, pressing the front end of the battery b.

Embodiment 4

FIG. 14 is a perspective view representing a light emitter to be attached to caps according to the fourth embodiment of the present invention, FIG .15 is a bottom exploded perspective view of the light emitter to be attached to the cap according to the fourth embodiment of the present invention, and FIGS. 16 and 18 are side views sequentially representing processes for assembling a battery cover and turning on/off the light emitter according to the fourth embodiment of the present invention.

As shown in FIGS. 14 and 15, the light emitter A4 according to the fourth embodiment of the present invention includes a case 2b and a sub-body 4b. The case 2b has a coupling part 29b, which is formed at a front side of the case 2b and to which a sub-body 4b is hinged, a power supply part X formed at a rear side of the case 2b to supply power, and a mounting clip 26b formed at an outer surface of the case 2b. The sub-body 4b has at least one first lamp 41b mounted on the sub-body 4b and is rotatably hinged to the coupling part 29b. The power supply part X includes a battery accommodation part 22b, which has an upper part having an opening, and a battery cover 23b, which is coupled to the opening of the battery accommodation part 22b and is rotated to perform on/off functions.

As shown in FIG. 15, the sub-body 4b is coupled to the coupling part 29b of the case 2b. A rear side of the sub-body 4b is coupled to a hinge shaft pin 22b formed on the coupling part 29b such that the sub-body 4b is hinged to the case 2b.

As shown in FIG. 14, the sub-body 4b has a protrusion 43b, which is formed at an outer surface thereof such that a user easily catches the sub-body 4b. A terminal 44b is projected from an upper rear side of the sub-body 4b such that the terminal 44b makes contact with an inner surface of the coupling part 29b of the case 2b while producing friction.

The terminal 44b is bent in an arc shape and has a hollow, which allows an interconnection to pass therethrough. A flat part is formed at an outer middle part of the terminal 44b to maintain the sub-body 4b at a rotation angle of 45 degrees.

A plurality of guide protrusions 292b are formed lengthwise along the inner surface of the coupling part 29b of the case 2b such that the guide protrusions 292b make contact with the outer surface the terminal 44b and the flat part while producing friction.

Accordingly, if the sub-body 4b is rotated, the terminal 44b rotates while producing friction against the guide protrusion 292b of the coupling part 29b of the case 2b. The frictional force prevents the sub-body 4b from being loosen and allows the sub-body 4b to rotate while maintaining proper force. In addition, since the flat part makes contact with the inner surface of the coupling part 29b, the sub-body 4b maintains an angle of 45 degrees.

The guide protrusions 292b formed on the inner surface of the coupling part 29b of the case 2b reinforces the coupling part 29b having a thin plate shape. In addition, the guide protrusions 292b reduces the contact area, which is defined when the guide protrusions 292b make contact with the terminal 44b of the sub-body 4b, thereby reducing friction between the sub-body 4b and the case 2b. Therefore, the life-span of the light emitter can be extended.

That is, if there are no guide protrusions, the terminal 44b of the sub-body 4b directly makes contact with an inner surface of the coupling part 29b of the case 2b, so the inner surface of the coupling part 29b is damaged due to frequent rotational operations. If the outer surface of the terminal 44b is worn, the rotation angle of the sub-body 4b cannot be adjusted, so the light emitter must be discarded.

In order to solve such problems, according to the present invention, the guide protrusions 292b are further formed, so the life span of the light emitter can be extended due to the guide protrusions 292b.

A plurality of linear grooves 42b are formed lengthwise along a lower surface of the sub-body 4b, thereby ensuring a desired visual field.

Meanwhile, as shown in FIG. 15, the battery accommodation part 22b has a circular shape and includes a coupling groove 221b, which is formed at an inner circumference of the battery accommodation part 22b, insertion grooves 222b, which are formed perpendicularly to the coupling groove 221b while communicating with the coupling groove 221b, a negative contact terminal 223b formed at a lower part of the battery accommodation part 22b, and a positive contact terminal 224b formed in the inner circumference of the battery accommodation part 22b.

The battery cover 23b is provided in the center of an inner surface with an electrical contact member 5b, which makes contact with an anode of the battery. The battery cover 23b includes a plurality of electrical contact sections 52b and a current terminal 54b making contact with the positive contact terminal 224b. The battery cover 23b is provided at an outer circumference thereof with locking protrusions 232b which are inserted into the insertion grooves 222b. A locking member 233b having an arc shape is formed on the outer circumference of the battery cover 23b. The locking protrusion 232b is inserted into the insertion groove 222b of the battery accommodation part 22b, and the locking member 233b makes contact with an inner circumference of the coupling groove 221b.

Accordingly, the locking protrusion 232b is inserted into the insertion groove 222b of the battery accommodation part 22b, and then the battery cover 23b is rotated counterclockwise by 90 degrees such that the locking protrusion 232b and the locking member 233b rotates while moving along the coupling groove 221b, resulting in a locking state.

Two locking protrusions 232b are opposite to each other while being spaced apart from each other by an angle 180 degrees.

A central projection shaft 234b is formed in the center of the inner surface of the battery cover 23b such that the electrical contact member is inserted into the central projection shaft 234b. An auxiliary projection shaft 235b is further formed at a side of the central projection shaft 234b. A central hole 55b, into which the central projection shaft 234b is inserted, is formed in the center of the electrical contact member 5b. An auxiliary insertion hole 56b, into which the auxiliary projection hole 235b is inserted, is formed at a side of the central hole 55b.

Accordingly, if the central projection shaft 234b is inserted into the central hole 55b of the electrical contact member, and the auxiliary projection shaft 235b is inserted into the auxiliary insertion hole 56b, the electrical contact member 5b is prevented from being rotated or separated, so that the electrical contact member 5b is firmly fixed.

As shown in FIG. 16, a handle 236b is projected from the outer surface of the battery cover 23b, thereby allowing a user to easily manipulate the light emitter. The handle 236b has a fan shape, which is getting wider from a center portion to a periphery of the batter cover 23b, and is projected upwardly from the battery cover 23b while extending beyond an outer diameter of the battery cover 23b.

A catching projection 237b is projected from the outer surface of the battery cover 23b in opposition to the handle 236b. In a state that the thumb of the user is engaged with the handle 236b, the index finger of the user is engaged with the catching projection 237b, thereby allowing the user to easily operate the light emitter.

Hereinafter, the process of coupling the battery cover and on/off operation of power will be described with reference to FIGS. 16 to 18.

As shown in FIG. 16, the battery accommodation part 22b is covered with the battery cover 23b by fitting the battery cover 23b into the battery accommodation part 22b. This state will be referred to as 0 degree. At this time, the locking protrusion 232b is inserted into the insertion groove 222b.

After that, as shown in FIG. 17, the battery cover 23b is rotated counterclockwise by 90 degrees, resulting in the locking state. That is, the locking protrusion 232b and the locking member 233b of the battery cover 23b move along the coupling groove 221b of the battery accommodation part 22b, resulting in the locking state.

As shown in FIG. 18, as the battery cover 23b is rotated clockwise by 45 degrees, the current terminal 54b makes contact with the positive contact terminal 224b. As a result, current flows and power is turned on.

That is, if the battery cover 23b is coupled to the battery accommodation part 22b and then the battery cover 23b is rotated about 135 degrees, power is turned on.

After that, if the battery cover 23b is reversely rotated by 45 degrees, the current terminal 54b is separated from the positive contact terminal 224b, so that the power is turned off and the locking state is released.

According to the fourth embodiment of the present invention, even if the power switch is additionally formed, the battery cover 23b serves as a switch, realizing compact and light-weight structure of the light emitter.

As described above, according to the present invention, the user can adjust the distance of radiant light and the amount of radiant light by moving a sub-body equipped with a first lamp back and forth such that the first lamp is independently turned on. In addition, the sub-body is rotatable such that the user can adjust the radiation angle without moving the head of the user. The light emitter is fixed to a pocket to radiate light in the forward direction by arranging the sub-body at a right angle with respect to a case.

In addition, the lighter emitter can be used in sending emergency signal and provides working safety by emitting light toward the feet of the pedestrian.

In addition, an additional switch unit for a first lamp is provided such that the user can adjust the amount of battery consumption.

Although few embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and sprit of the invention, the scope of which is defined in the claims and their equivalents.

The present invention relates to a light emitter to be attached to caps.