Background Art Generally, a traveling bag is constructed such that various kinds of baggage can be compactly received therein as much as possible for a long stay, it can be easily moved through adjustment of the length of a handle, and wheels are mounted on a bottom side thereof so that a traveler can immediately cope with various ambient environments.

A conventional traveling bag disclosed in Korean Patent Publication No. 1984- 0000790 entitled"Handcart-type bag"is constructed such that a U-shaped lower plate with a cross frame and parallel legs which are received in and taken out from other legs of a wheel supporting frame is provided, whereby the protruding length of the lower plate can be adjusted to load additional baggage thereon.

Further, Korean Patent Laid-Open Publication No. 2003-0044980 entitled "Traveling bag with an expandable volume"discloses a traveling bag in which its size can be adjusted and changed properly according to the volume and amount of baggage to be received in the bag, and thus, the volume of the bag is expandable.

Korean Utility Model Laid-Open Publication No. 1998-057652 entitled"Lower body for handcart attachable to bag"discloses a simplified structure of a lower body for a handcart attachable to a bag in which stability and balance are maintained by placing wheels at points outside posts to increase spacing between the wheels and a support base, convenient use is ensured by providing a pivotably foldable auxiliary leg on the support

base coupled to the lower body, and wear of and damage to the wheels can also be reduced by simplifying the structure of the wheels coupled to the lower body.

However, the bag disclosed in Korean Patent Publication No. 1984-0000790 has problems in that it is difficult to load baggage on the lower plate, baggage loaded on the lower plate is likely to fall backward due to the absence of any means for supporting the bottom of the lower plate and the back of the baggage at a rear side of the lower plate, and baggage may be occasionally lost even though the baggage and the lower plate are tied with a string.

Meanwhile, the bag disclosed in Korean Patent Laid-Open Publication No. 2003- 0044980 can be used well when a user expands the volume of the bag and drags the bag.

However, if heavy weight of baggage is exerted on a rear side of the bag and the bag is then in a standing state, the bag may fall down rearward due to the absence of any means for supporting the rear side of the bag. Further, since the user should zip the bag open to put an object or the like held with his/her hand into the bag, there are many problems leading to inconvenience of use.

Further, the bag disclosed in Korean Utility Model Laid-Open Publication No.

1998-057652 has a disadvantage in that, in order to put an object held with a user's hand into the bag, a user should zip the bag open and then forcibly zip the bag closed.

Disclosure of Invention Accordingly, the present invention is conceived to solve the aforementioned problems. An object of the present invention is to provide to a traveling bag, wherein a vertical frame of a carrier with a handle mounted thereto is hinged to and moved telescopically or slidably with respect to a lower frame for supporting a main body defining a receiving space so as to be spaced apart from the main body and to expand a loading space between the vertical frame and the main body so that much more baggage can be easily loaded therebetween.

Another object of the present invention is to provide a traveling bag, wherein when lower and vertical frames of a carrier are moved telescopically or slidably moved and spaced apart from each other and the vertical frame is in close contact with a main body,

the lower and vertical frames are stably supported by a restriction means without rocking and baggage loaded in a space expanded by main body and the carrier dose not fall, thereby enabling the bag to be carried conveniently.

A further object of the invention is to provide to a traveling bag, wherein a pivoting means is provided on a hinge portion of vertical and lower frames and the vertical frame is pivoted only up to a position that is at a predetermined angle with respect to the ground.

A still further object of the present invention is to provide a traveling bag, wherein small baggage can be easily loaded in an expanded loading space between a main body and a vertical frame by outstretching a baggage supporting means at a lower frame of a carrier.

According to an aspect of the present invention for achieving the objects, there is provided a traveling bag including a main body defining a receiving space for accommodating clothes, the necessities of life and the like requisite for travels, a carrier having a lower portion on which the main body is loaded and a handle of which the length is adjustable according to user's height, and wheels installed on the bottom of at least one of the main body and the carrier, wherein the carrier comprises a lower frame that has one end fixed to a lower portion of the main body to support the main body and is telescopically stretched far away from the main body, and wheels mounted to a tip of a front end portion thereof ; and a vertical frame installed pivotably at the tip of the front end portion of the telescopically stretchable lower frame.

The traveling bag may further comprise a restriction means installed on at least one of the main body and the vertical frame to selectively restrict relative movement between the vertical frame and the main body.

In the traveling bag of the present invention, the restriction means may comprise a restriction lever installed on the vertical frame, and a restriction peg provided on an upper portion of the main body.

In the traveling bag of the present invention, the restriction means may comprise a first belt having one end fixed to one side surface of the main body and the other end with a male clip provided thereon, and a second belt having one end fixed to the other side surface of the main body and the other end with a female clip releasably coupled with the

male clip installed thereon.

In the traveling bag of the present invention, the vertical frame may be provided with at least one hanging portion for preventing at least one of the first and second belts from being slipped down toward a lower portion of the vertical frame.

In the traveling bag of the present invention, the restriction means may comprise a connection link installed pivotably on at least one of the vertical frame and a side surface of the main body, and a link hooking peg installed to restrict the main body and the vertical frame when the link hooking peg is caught in a groove formed at a free end of the connection link.

In the traveling bag of the present invention, the restriction means may comprise a cover provided at an end of a side surface of the main body close to the vertical frame to wrap and fix the vertical frame and having a Velcro fastener attached to an end portion of the cover, and a cover fixing means provided at an end of the other side surface of the main body to be brought into close contact with and to be fixed to the Velcro fastener of the cover.

The traveling bag may further comprise a pivoting means. The pivoting means includes a support shaft installed at a hinge portion of the front end portion constituting the vertical and lower frames, and a torsion spring provided on the support shaft to enable the vertical frame to be pivoted only up to a position which is at a predetermined angle with respect to the ground. The torsion spring has one end in close contact with the vertical frame and the other end in close contact with the lower frame.

The traveling bag may further comprise a baggage supporting means that is provided at any one of a lower portion of the main body and an upper portion of the lower frame and is pivoted to come into close contact with the top of the lower frame to prevent baggage from falling when the baggage is loaded in a space defined by the main body and the telescopically stretched lower frame and the vertical frame of the carrier.

The traveling bag may further comprise a restriction means installed on at least one of the main body and the lower frame to selectively restrict the main body and the lower frame.

The traveling bag may further comprise a vertical frame cover installed pivotably

at a side surface of the main body on which the carrier is installed to selectively enclose the vertical frame.

According to another aspect of the present invention, there is provided a traveling bag including a main body defining a receiving space for accommodating clothes, the necessities of life and the like requisite for travels, a carrier having a lower portion on which the main body is loaded and a handle of which the length is adjustable according to user's height, and wheels installed on the bottom of at least one of the main body and the carrier, wherein the carrier comprises a lower frame including a fixing plate member fixed to the bottom of the main body, an extension member slidably stretched in a direction far away from the main body while supporting the main body, and a pair of wheels mounted on the bottom of the extension member; and a vertical frame pivotably installed at the slidably stretchable extension member of the lower frame.

In the traveling bag of the present invention, the extension member may comprise first and second extension members. The first extension member may comprise H-shaped rail sections formed at both side ends to be seated in and slid along guide rails formed on the fixing plate member in a fore and aft direction, second stoppers installed at predetermined positions in the rail sections to prevent the first extension member from coming out from the rail sections when the first extension member is slidably taken out from the fixing plate member, grooves formed with a certain depth at both side walls of the rail sections in a slide direction to prevent the first extension member from coming out downwardly from the second extension member, and a catching protrusion formed on an end portion of an upper surface of the first extension member which is opposite to the fixing plate member. The second extension member may comprise protrusions seated in and slid along upper rails provided in the rail section of the first extension member, side cover sections formed to enclose side surfaces of the rail sections, escape preventing members coupled to the side cover sections at predetermined positions and received in the groove to prevent the first extension member from coming out downwardly, frame installation sections protruding at a predetermined interval at a side of the second extension member which is opposite to the first extension member so that the vertical frame can be pivotably installed at the frame installation sections, and a stop protrusion formed at a side

of the bottom of the second extension member which is opposite to the frame installation sections so that the stop protrusions can be caught by the catching protrusion of the first extension member to prevent the first and second extension members from being further slid and coming out.

Brief Description of Drawings Fig. 1 is a view illustrating a traveling bag according to an embodiment of the present invention in a state where a lower frame is stretched and a vertical frame is inclined at a certain angle.

Fig. 2 is a sectional view taken along line A-A in Fig. 1.

Fig. 3 is a view illustrating a main body according to an embodiment of the present invention.

Fig. 4 is a view illustrating a pivoting means according to an embodiment of the present invention.

Fig. 5 is a schematic bottom view of the traveling bag according to the embodiment of the present invention.

Figs. 6 and 7 are perspective views showing different examples of a restriction lever and a restriction peg used as a restriction means installed on the traveling bag according to the embodiment of the present invention.

Fig. 8 is a perspective view of a traveling bag employing another example of the restriction means according to the present invention.

Fig. 9 is a rear perspective view of the traveling bag of Fig. 8.

Fig. 10 is an exploded perspective view showing a carrier of Fig. 8.

Fig. 11 is a side view showing an assembled state of the carrier of Fig. 8.

Fig. 12 is a bottom view of the traveling bag of Fig. 8.

Fig. 13 is a perspective view of a traveling bag employing a further example of the restriction means according to the present invention.

Fig. 14 is a perspective view showing a state where a vertical frame cover of Fig.

13 is opened at a side thereof.

Fig. 15 is an exploded perspective view showing a carrier of Fig. 13.

Fig. 16 is a side view showing the carrier of Fig. 15.

Fig. 17 is a perspective view showing a carrier to be coupled to a traveling bag according to another embodiment of the present invention.

Fig. 18 is an exploded perspective view of the carrier of Fig. 17.

Fig. 19 is a view showing the carrier of Fig. 17 in use.

Fig. 20 is a sectional view taken along line B-B in Fig. 19.

Fig. 21 is a sectional view taken along line C-C in Fig. 19.

Fig. 22 is a sectional view taken along line D-D in Fig. 19.

Fig. 23 is a sectional view taken along line E-E in Fig. 22.

<Explanation of reference numerals for designating main components in the drawings> 100: Main body 200: Carrier 210 : Lower frame 211: Front end portion 212: Wheel 220: Vertical frame 230: Handle 240: Restriction means 241: Restriction lever 242: Restriction peg 243: First belt 244: Second belt 245: Pouch 246: Connection link 247: Link hooking peg 248: Cover 249: Cover fixing member 250: Pivoting means 251: Support shaft 252: Torsion spring 260: Baggage supporting means 270: Restriction lever 280 : Restriction means 300: Wheel 500: Main body 501,502 : Hook protrusion 510 : Vertical frame cover 511: Hook lever 511 a : Hole 512: Cutout portion 600: Carrier 610: Lower frame 620: Vertical frame 611: Fixing plate member 612,613 : First and second extension members 614: Wheel

Best Mode for Carrying Out the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to accompanying drawings.

Fig. 1 is a view illustrating a traveling bag according to an embodiment of the present invention in a state where a lower frame is stretched and a vertical frame is inclined at a certain angle; Fig. 2 is a sectional view taken along line A-A in Fig. 1 ; Fig. 3 is a view illustrating a main body according to an embodiment of the present invention; Fig. 4 is a view illustrating a pivoting means according to an embodiment of the present invention; Fig. 5 is a schematic bottom view of the traveling bag according to the embodiment of the present invention; and Figs. 6 and 7 are perspective views showing different examples of a restriction lever and a restriction peg used as a restriction means installed on the traveling bag according to the embodiment of the present invention.

The traveling bag according to the embodiment of the present invention comprises a main body 100 defining a receiving space in which clothes, the necessities of life and the like requisite for travels are received; a carrier 200 that has a lower portion on which the main body is loaded and a handle 230 of which the length is adjustable according to user's height; and wheels 300 installed on the bottom of at least one of the main body and the carrier.

The main body 100 herein takes the shape of a substantially hexahedral trunk and is provided with a handle 110 to be used when a user lifts and carries the main body without using the carrier 200. The main body has receiving sections that are not shown in the figures. Since the shape of each of the receiving sections can vary on demand upon manufacture of the bag, detailed descriptions of the receiving sections well known in the art will be omitted.

The carrier 200 that is an essential part of the present invention comprises a lower frame 210 of which one end is fixed to a lower portion of the main body 100 to support the main body 100 and which can be telescopically stretched far away from the main body 100 and has wheels 212 mounted to a tip of a front end portion 211 thereof; and a vertical frame 220 installed pivotably at the tip of the front end portion 211 of the telescopically

stretchable lower frame.

Accordingly, a user can pull the front end portion 211 of the lower frame 210 of the carrier 200 from the main body 100 to expand a loading space, and put baggage held with his/her hand on the stretched portion, including the front end portion 211, of the lower frame 210. Then, the user can tilt the vertical frame 220 at a certain angle and carry the bag by pushing or pulling it.

Meanwhile, the present invention is characterized by a restriction means 240 installed on at least one of the main body 100 and the vertical frame 200 to selectively restrict relative movement between the vertical frame 220 and the main body 100.

The main body 100 and the carrier 200 are securely combined with each other by means of the restriction means 240. At the same time, when the main body 100 and the vertical frame 220 of the carrier 200 are spaced apart from each other at a predetermined interval to expand a loading space, baggage loaded in the loading space can be conveniently carried without falling of the baggage therefrom. Of course, the restriction means 240 may be provided at upper and lower portions of the main body 100 and the carrier 200, respectively.

As an example, the restriction means 240 comprises a restriction lever 241 installed pivotably on the vertical frame 220 and a restriction peg 242 provided on an upper portion of the main body 100. Accordingly, once the restriction lever 241 is fastened to the restriction peg 242, the vertical frame 220 is in close contact with the main body 100, so that a user can tilt both the main body 100 and the vertical frame 220 and conveniently pull and carry the bag when there is no additional baggage to be loaded in the loading space. Other examples consisting of a restriction lever and a restriction peg are shown in Figs. 6 and 7. It is also possible to make various changes to the configuration of the restriction means in addition to the illustrated examples.

Furthermore, as shown in Figs. 1 and 3, another example of the restriction means 240 comprises a first belt 243 having one end fixed to one side surface of the main body 100 and the other end with a male clip 243a provided thereon, and a second belt 244 having one end fixed to the other side surface of the main body 100 and the other end with a female clip 244a, which is releasably coupled with the male clip 243a, installed thereon.

Accordingly, in a case where the front end portion 211 or a second tube portion 214 is telescopically extracted from a first tube portion 213 in the lower frame 210 of the carrier 200, when baggage is loaded on the front end portion 211 or the second tube portion 214 and the first belt 243 is caused to wrap around the vertical frame 220 and the male clip 243a thereof is then inserted into the female clip 244a of the second belt 244, baggage that is not supported by the main body 100 and the vertical frame 220 can be prevented from falling.

At this time, a hanging portion 221 is installed on the vertical frame 220 so that, in a case where a user tilts the vertical frame 220 at a certain angle and pulls the bag, at least one of the first and second belts 243 and 244 is hung on the hanging portion 211 not to be slipped down toward a lower portion of the vertical frame 220, thereby safely supporting baggage.

Meanwhile, it is preferred that pouches 245 be provided on the side surfaces of the main body 100 to receive the first and second belts 243 and 244 when the belts is not in use, in order to improve an external appearance of the bag.

A further example of the restriction means 240 comprises a connection link 246 installed pivotably on at least one of the vertical frame 220 and a side surface of the main body 100, and a link hooking peg 247 installed on at least one of the vertical frame 220 and the side surface of the main body 100 to restrict the main body 100 and the vertical frame 200 when the link hooking peg 247 is caught in a groove 246a formed at a free end of the connection link 246. It is shown in the figure that the connection link 246 is installed on the side surface of the main body 100 and the link hooking peg 247 is installed on the vertical frame 220.

Although the connection link 246 takes the shape of wire in this example, it will be apparent that the connection link can be made in the form of a plate member.

A still further example of the restriction means 240 comprises, as shown in Fig. 3, a cover 248 that is provided at an end of a side surface of the main body 100 close to the vertical frame 220 to wrap and fix the vertical frame 220 and has a Velcro fastener 248a attached to an end portion of the cover, a cover fixing means 249 provided at an end of the other side surface of the main body 100 to be brought into close contact with and fixed to

the Velcro fastener 248a of the cover 248, and cover fixing strings 249a provided on the main body 100 at predetermined intervals to tie the cover 248 which has been rolled roundly.

The first tube portion 213 is provided in the lower frame 210 that is fixed to the main body 100 by means of screws, rivets or the like (not shown), and the second tube portion 214 is installed to appear when the lower frame 210 is stretched telescopically, for example, in three stages. Here, the coupling of the front end portion 211 to the second tube portion 214 and the coupling of the second tube portion 214 to the first tube portion 213 can be achieved by a known structure as shown in Fig. 2. The coupling of the front end portion 211 to the second tube portion 214 will be explained by way of example. A penetration cover 211 a that is in close contact with and slid along the second tube portion 214 is fixed to the front end portion 211. A lid 214a is fixed to one side of the second tube portion 214 to prevent the penetration cover 211 a from coming out. The front end portion 211 is then inserted from a side opposite to the side of the second tube portion where the lid 214a is installed toward the side where the lid 214a is installed, so that the tip of the front end portion 211 a protrudes beyond the lid 214a.

Although the penetration cover 21 la is fixed to the front end portion 211 by means of an adhesive in this example, it can also be detachably fixed to the front end portion through a screw or a pin. It will be also apparent that, although the lid 214a is fixed to the second tube portion 214 by an adhesive in this example, it can be detachably fixed to the second tube portion by means of a screw or a pin.

Meanwhile, at a hinge portion on which the vertical frame 220 is pivoted with respect to the lower frame 210 is installed a pivoting means 250 for allowing the vertical frame 220 to pivot only up to a position that is at a predetermined angle with respect to the ground. It will be apparent that the povoting means is provided only for pivoting the verticla frame.

Here, as shown in Fig. 4, the pivoting means 250 is a support shaft 251 installed at a lower portion of the vertical frame 220 to protrude by a predetermined length and parallel to a center of rotation. It will be apparent that the pivoting means may comprise a torsion spring 252 which is fitted around the support shaft 251 and has one end supported at a

position of the vertical frame 220 to urge the vertical frame 220 in a direction for preventing the vertical frame from falling down to the ground and the other end supported on the tip of the front end portion 211 of the lower frame 210.

The support shaft 251 can be made in the form of a bolt or a thin and long circular pin. Any type of torsion spring can be used so far as the spring applies an upward elastic force to the vertical frame.

Accordingly, it is preferred that the torsion spring 252 of the pivoting means 250 have an elastic force to such an extent that the handle is stood vertically or pivoted only up to a position that is at a certain angle with respect to the ground so that the handle cannot fall down to the ground to help a user to grip the handle. More preferably, the torsion spring 252 of the pivoting means 250 has an elastic force by which the handle can be maintained at an angle as it is when the user leaves hold of the handle 230.

In the meantime, a pair of wheels 300 are installed at a side of the bottom of the lower frame 210 fixed to the main body 100, and another pair of wheels 300 are installed at a side of the bottom of the main body 100 which is far from the wheels 300 installed at the lower frame 210.

Accordingly, when the user pulls and carries the bag using the wheels in a state where the vertical frame 220 is inclined at a certain angle, only the wheels 212 installed at the front end portion 211 of the lower frame 210 may be rotated by means of friction on the ground. Alternatively, the wheels 300 provided at the main body 100 are also rotated by means of friction on the ground, thereby prolonging the life of the bag. Further, even in a case where the lower frame 210 is telescopically stretched and baggage is loaded on the front end portion 211, both the wheels 212 and the wheels 300 provided at the main body 100 are rotated by means of friction in the same manner.

Also, the bag of the present invention is characterized by a baggage supporting means 260 that is provided at the lower portion of the main body 100 or an upper portion of the lower frame 210, has an end fixed to the lower portion of the main body 100 close to the vertical frame 220, and is outstretched on the lower frame 210 to prevent baggage from falling when the baggage is loaded in the space defined by the main body 100 and the telescopically stretched lower frame 210 and the moved vertical frame 220 of the carrier

200.

Here, it will be apparent that the baggage supporting means 260 may be installed pivotably at the lower portion of the main body 100 by means of a hinge pin, or on the lower frame 210, i. e. on the first tube portion 213 by means of a hinge pin. Further, the baggage supporting means 260 may be pivotably installed on the front end portion 211 of the lower frame 210.

The baggage supporting means 260 may be made in the form of a thick film, or formed of a plurality of foldable plates 261 of which all or some can be outstretched and supported by the lower frame 210. In a case where the vertical frame 220 is brought into close contact with the main body 100, the foldable plates are pivoted and placed between the main body 100 and the vertical frame 220 in the outstretched state. That is, the foldable plates 261 can be extended in a shutter manner. Alternatively, the baggage supporting means 260 may be formed as a thin plastic sheet member. In this case, it can be used when the lower frame 210 is fully stretched telescopically.

Accordingly, the foldable plates 261 are outstretched to a position to which the second tube portion 214 and the front end portion 211 of the lower frame 210 are extended, so that even small baggage can be simply loaded on the second tube portion 214 and the front end portion 211. Further, this can be achieved even when the baggage supporting means is formed of a film having predetermined strength and thickness. Of course, in a case where the baggage supporting means 260 is formed as the plastic sheet member and pivotably installed on the front end portion 211, the baggage supporting means is pivoted and placed below the main body 100 to support the baggage.

Of course, protrusions (not shown) may protrude from the bottom of the main body 100 to support an end portion of the plastic sheet member constituting the baggage supporting means 260. Further, protrusions with predetermined lengths may protrude vertically from the bottom of the plastic sheet member so that the protrusions can wrap tops of the second tube portion 214 and the front end portion 211 of the lower frame 210 to prevent lateral play of them.

A traveling bag employing a restriction means according to another embodiment of the present invention shown in Figs. 8 to 12 comprises a main body 100 with a slide

fastener 120 installed thereon; a carrier 200 provided on one side of the main body and having lower and vertical frames 210 and 220; and wheels 300 installed on the carrier.

Therefore, a user draws a connection of the lower frame 210 and the vertical frame 210 of the carrier 200 from the main body 100 to expand a loading space and puts an object held with his/her hand on a portion telescopically stretched from the lower frame 210. Then, the user can tilt the vertical frame 220 at a certain angle, and pull or push and carry the bag.

Here, the lower frame 210 has a wide fixing plate 210a formed with a plurality holes 210b for use in fixing the bottom of the main body 100 to the top of the first tube portion 213 by means of rivets 210c or the like.

Meanwhile, the bag comprises a restriction means 240 for selectively restricting relative movement between the vertical frame 220 and the main body 100. The restriction means 240 has a restriction peg member 242 fixed to the top of the main body 100 and provided with upwardly protruding hook protrusions 242a at both ends thereof, and a restriction lever 241 that supports the vertical frame 220 inserted into the restriction lever and has hook coupling members 241a coupled to the hook protrusions 242a of the restriction peg member 242 while upper portions at both ends thereof are pivoted.

Reference numeral 242b that has not yet been described designates holes for use in fixing the restriction peg members 242 to the top of the main body 100 by means of rivets 242c or the like, and reference numeral 241b designates holes formed in the hook coupling members 241 a to receive the hook protrusions 242a therein.

A baggage supporting means 260 is pivotably installed at a lower portion of the vertical frame 220 which is brought into close contact with the main body 100 by means of a pin 262 passing through an end of the baggage supporting means. When baggage is loaded in a space defined by the main body 100 and the telescopically stretched lower frame 210 and the vertical frame 220 of the carrier 200, the baggage supporting means 260 prevents the baggage from falling through an opening between the first, second and third tube portions. Alternatively, the baggage supporting means 260 may be made of a plurality of plastic sheet members coupled to one another by means of a plurality of pins 261.

A traveling bag employing a restriction means according to a further embodiment of the present invention shown in Figs. 13 to 16 comprises a main body 500 formed through molding with plastic to receive baggage therein, a carrier 200 that is provided on a side of the main body and has a lower frame 210 and a vertical frame 200, and wheels 300 installed on the carrier.

Here, a restriction means for selectively restricting relative movement between the vertical frame 220 and the main body 500 is provided. This restriction means comprises at least one hook protrusion 501 formed on a surface of the main body 500 with which the vertical frame 220 of the carrier 200 is brought into close contact, and a restriction lever 270 that is provided on the vertical frame 220 so that its vertical movement is restricted and has a hook hole 271 into which the hook protrusion 501 is tightly inserted.

Another example of the restriction means comprises a vertical frame cover 510 pivotably installed at a side surface of the main body 500 with which the vertical frame 220 is brought into close contact so as to selectively enclose the vertical frame 220, hook levers 511 provided at an opening side of the vertical frame cover 510, and hook protrusions 502 formed at a side surface of the main body 500 so that the hook levers 511 can be fastened thereto. A hole 511 a is formed at each of the hook levers 511 so that the hook protrusion 502 can be fitted into the hole without easily coming out therefrom.

Further, cutout portions 512 are formed at top and bottom of the vertical frame cover 510 so that the vertical frame 220 can be placed therein.

Moreover, a restriction means 280 is installed to selectively restrict the main body 500 and the lower frame 210 so that the main body can be separated from the lower frame 210 and partially opened or closed. The restriction means 280 comprises a restriction peg member 282 that is fixed to a lower portion of the main body 500 and has hook protrusions 282a protruding upward from both ends thereof ; and restriction levers 210d that pivot at both ends of a body fixing plate 210a provided on the first tube portion 213 and have hook holes 210e into which the hook protrusions 282a of the restriction peg member 282 are fitted. Furthermore, a side surface fixing portion 210f is formed integrally with a side of the fixing plate 210a opposite to the restriction lever 210d such that it can be fixed to the other side of the main body 500 by means of rivets, screws or the like. Here, through-

holes may be formed in the side surface fixing portion 21 Of so that the side surface fixing portion can be fixed using rivets. Alternatively, through-holes may not be formed when the side surface fixing portion is fixed using screws or the like.

On the other hand, it will be apparent that the restriction peg member 282 may comprise only hook protrusions 282a formed integrally with the main body. At this time, the restriction levers 210d to be fitted around the hook protrusions 282a are folded toward the hook protrusions and then fitted around and coupled to the hook protrusions. That is, although Fig. 13 shows that the hook protrusions are provided at a lower portion of a front surface of the bag, it will be apparent that the hook protrusions may be provided at lower portions of both side surfaces of the bag and the restriction levers are formed to be folded toward and fitted around the hook protrusions.

Fig. 17 is a perspective view showing a carrier to be coupled to a traveling bag according to another embodiment of the present invention. A carrier 600 that is coupled to a main body 100 of the traveling bag and easily movable by wheels 300 mounted on the bottom thereof comprises a lower frame 610 including a fixing plate member fixed to the bottom of the main body 100, an extension member slidably stretched in a direction far away from the main body 100 while supporting the main body 100, and a pair of wheels 614 mounted on the bottom of the extension member; and a vertical frame 620 pivotably installed at a frame mounting portion of the slidably stretchable extension member of the lower frame 610.

As shown in Figs. 17 to 23, the lower frame 610 comprises the fixing plate member 611 that is fixed to the bottom of the main body 100 and has the wheels 300 installed on the bottom of the fixing plate member; and the first and second extension members 612 and 613 that are seated in hook-shaped guide rails 611 a symmetrically formed on the bottom of the fixing plate member 611 and can be concealed or exposed while being slid along the guide rails by certain lengths.

The fixing plate member 611 is provided with the hook-shaped guide rails 611a symmetrically formed at a predetermined interval on the bottom thereof, and first stoppers 611b installed at predetermined positions in the guide rails to restrict the degree of exposure of the first extension member 612.

The first extension member 612 comprises H-shaped rail sections 612a formed at both side ends to be seated in and slid along the guide rails 611 a ; and second stoppers 612b installed at predetermined positions in the rail sections to prevent the first extension member from coming out from the rail sections when the first extension member is slidably taken out from the fixing plate member 611. Further, grooves 612c are formed with a certain depth at both side walls of the rail sections in a slide direction to prevent the first extension member from coming out downwardly from the second extension member 613. Moreover, a catching protrusion 612d is formed on an end portion of an upper surface of the first extension member which is opposite to the fixing plate member.

The second extension member 613 comprises protrusions 613a seated in and slid along upper rails provided in the rail section 612a of the first extension member 612; side cover sections 613b formed to enclose side surfaces of the rail sections 612a; escape preventing members 613c coupled to the side cover sections at predetermined positions and received in the groove 612c to prevent the first extension member 612 from coming out downwardly; frame installation sections 613d protruding at a predetermined interval at a side of the second extension member which is opposite to the first extension member 612 so that the vertical frame 620 can be pivotably installed at the frame installation sections; and a stop protrusion 613e formed at a side of the bottom of the second extension member which is opposite to the frame installation sections so that the stop protrusions 613e can be caught by the catching protrusion 612d of the first extension member 612 to prevent the first and second extension members 612 and 613 from being further slid and coming out.

Wheels 614 are provided on the bottom of the second extension member 613 at a predetermined interval.

Accordingly, when a user utilizes the carrier 600 with the main body 100 fixed to the fixing plate member 611 and then pulls the vertical frame 220 to take out the extension members from the fixing plate member 611 in order to load additional baggage, the extension members are taken out from the fixing plate member so that the user can load additional baggage held with his/her hand on the extension members and then pull and carry the bag. It will be apparent that any one of the aforementioned restriction means may be provided on the extension members 612 and 613 or the vertical frame 220 to

prevent the extension members 612 and 613 from being easily taken out from the fixing plate member 611 in a state where the fixing plate member 611 and the main body 100 are fixed to each other.

Industrial Applicability According to the traveling bag of the present invention described above, a vertical frame of a carrier with a handle provided thereon is hinged on a lower frame for supporting the bottom of a main body defining a receiving space and can be telescopically or slidably moved to be spaced apart from the main body to expand a loading space. Thus, there is an advantage in that more baggage can be simply loaded in the space between the main body and the vertical frame.

Further, the carrier and the main body are securely fixed to each other without being separated from each other by means of a restriction means. With the restriction means, the lower frame and the vertical frame can be stably supported without rocking and baggage loaded in the space expanded by the main body and the carrier which are spaced apart from each other does not fall, in a case where the lower frame and the vertical frame of the carrier are telescopically or slidably spaced apart from the main body and in a case where the vertical frame is brought into close contact with the main body.

Moreover, since a pivoting means is provided on a hinge portion of the vertical frame and the lower frame, the vertical frame is pivoted only up to a position which is at a certain angle with respect to the ground so that the handle does not fall down on the ground to help a user to grip the handle.

Furthermore, wheels are provided on the bottom of an end portion of the lower frame to which the main body is fixed, and other wheels are provided on the bottom of a portion of the main body opposite to the wheels provided on the lower frame. Thus, there is an advantage in that the main body is stably moved even when the lower frame is stretched.

In addition, since a baggage supporting means is outstretched on the lower frame of the carrier, small baggage can be easily loaded in a loading space expanded between the main body and the vertical frame.

It is intended that the embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The scope of the present invention is defined only by the appended claims. Those skilled in the art can make various changes and modifications thereto without departing from its true spirit. Therefore, various changes and modifications obvious to those skilled in the art will fall within the scope of the present invention.