| [CLAIMS] [Claim 1]
A locking device for safety belt having a buckle type belt fixture 10 of a length adjustment device 100 coupled to a back seat of a car, a diagonal belt 100b and a horizontal belt 100a vertically penetrated into a belt through hole 30 through a belt fixing bar 40 respectively, two inclined grooves 90 formed at both sides of the belt fixture 10, the belt fixing bar 40 moved along the inclined grooves 90 so as to couple the diagonal belt 100b, coupling protrusions 160 and bolt coupling holes 170 formed at both sides of an upper portion of a lower body 110 respectively, coupling grooves 190 of the belt fixture 10 for inserting the coupling protrusions 160 of the lower body 110 therein, and bolts 20 for inserting into the bolt coupling holes 170 comprising: circular grooves 91 and linear grooves 92 integrally formed at and penetrated into lower sides of each inclined groove 90 formed at both sides of the belt fixture 10 of the length adjustment device 100, in which the belt fixing bar 40 is inserted; elastic springs 200 having an upper convex portion 201 inserted into the circular groove 91 and protruded toward the inclined groove 90 and a lower supporting portion 202 inserted and fixed into the linear groove 92 integrally formed at the lower portion of the circular groove
91; and the lower body 110 fixed into the lower portion of the belt fixture 10 having the elastic springs 200 therein so as to support and fix the elastic springs 200; whereby the belt fixing bar 40 can be elastically locked through the upper convex portion 201 of the elastic spring 200 during fixing of the diagonal belt 100b via the belt fixing bar 40.
[Claim 2]
A locking device for safety belt as claimed in claim 1, wherein two screw holes 210 are formed at inside walls of each inclined groove 90 formed at both sides of the belt fixture 10, in which the belt fixing bar
40 is inserted, and spherical type springs 230 having a screw coupling groove 220 located at the lower portion thereof are formed at the inside walls of each inclined groove 90 so as to be coupled and fixed by means of screws 240. |
[DESCRIPTION] [Invention Title]
A LOCKING DEVICE OF SAFETY BELT [Technical Field] The present invention relates to a locking device for safety belt capable of locking a safety belt by fixing a belt fixing bar through a convex portion of a spring during fixing of a diagonal belt via the belt fixing bar, in that the convex portion of the elastic spring is protruded toward inclined grooves of a buckle type belt fixture of a length adjustment device for freely adjusting the length of the safety belt so as to be fit for the passenger' s body, and more particularly, to a locking device for safety belt, in that circular grooves and linear grooves are integrally formed at and penetrated into lower sides of each inclined groove formed at both sides of a buckle type belt fixture, in which the belt fixing bar is inserted, and elastic springs having an upper convex portion inserted into the circular groove and protruded toward the inclined groove and a lower supporting portion inserted and fixed into the linear groove formed at the lower portion of the circular groove are provided, so that the belt fixing bar can be elastically locked through the upper convex portion of the elastic spring during fixing of the diagonal belt via the belt fixing bar, the angle of the diagonal belt can be freely adjusted so as to be fit for a body of a small adult or children during wearing of the diagonal belt and horizontal belt, and the belt
fixing bar is not slid down the lower portion of the inclined groove to be locked, whereby preventing the unbinding of the diagonal belt.
[Background Art] Generally, a safety belt for car serves to safely protect a driver and a passenger by wearing a diagonal belt and a horizontal belt in order that they do not break away from a car seat owing to a shock generated from a car crash.
The safety belt for car includes the diagonal belt for tightening his chest through a shoulder line and a horizontal belt for tightening his abdominal region. It. tightens the passenger' s abdominal region and diagonal direction connecting his shoulder to his chest for the occurrence of an accident such as a car crash and so on, so that it can prevent his body from being broken away from the car seat . However, in the conventional safety belt fixed to a back seat of a car, where a comparatively small adult or children wear on the diagonal belt connecting his chest to his shoulder line, the diagonal belt passes through not his chest but his neck or his face from his shoulder line. Accordingly, it is uncomfortable for wearing the safety belt. Especially, it can cause a casualty by applying pressure to his neck and so on for the occurrence of an accident such as a car crash and so on.
In order to improve the above problem, an adjustment device for safety belt capable of freely adjusting the diagonal belt angle has been proposed in Korean utility model registration No. 20-0336041 by the present applicant. As shown in FIG. 1 and FIG. 2, the adjustment device for safety belt includes a belt fixture 10 of a length adjustment device 100 coupled to a back seat of a car, a diagonal belt 100b and a horizontal belt 100a vertically penetrated into a belt through hole 30 through a belt fixing bar 40 respectively, two inclined grooves 90 formed at both sides of the belt fixture 10, the belt fixing bar 40 moved along the inclined grooves 90 so as to couple the diagonal belt 100b, coupling protrusions 160 and bolt coupling holes 170 formed at both sides of an upper portion of a lower body 110 respectively, coupling grooves 190 of the belt fixture 10 for inserting the coupling protrusions 160 of the lower body 110 therein, and bolts 20 for inserting into the bolt coupling holes 170.
Accordingly, where it adjusts the safety belt so as to be fit for the passenger' s body, the lower body 110 located at the lower portion of the belt fixture 10 is separated and the diagonal belt 100b and the horizontal belt 100a are positioned at the upper and lower portions of the belt fixing bar 40 respectively. Then, the coupling protrusions 160 of the lower body 110 are inserted into the coupling grooves 190 of the belt fixture 10 and the bolts 20 are coupled to the bolt coupling holes 170, so that the diagonal belt 100b and the horizontal belt 100a are vertically
penetrated into the belt through hole 30 through the belt fixing bar 40 respectively.
When it pushes up the belt fixing bar 40 so as to fix the diagonal belt 100b to the belt fixture 10 after the length of the diagonal belt 100b is adjusted, the belt fixing bar 40 is pushed up along both grooves
90 of the belt fixture 10, so that the diagonal belt 100b is coupled and fixed to the belt fixture 10.
However, in the length adjustment device 100 for safety belt fixed to the back seat of a car, children, seniors, or women etc. mainly wear on the diagonal belt connected to the adjustment device 100. In this case, because the pushing power of the belt fixing bar 40 is weak, there is a defect in that the diagonal belt 100b cannot be properly coupled to the belt fixture 10 through the belt fixing bar 40.
Moreover, the belt fixing bar 40 for fixing the diagonal belt 100b is frequently slid down the lower portion of the inclined groove 90, so that the diagonal belt 100b cannot be properly coupled to the belt fixture 10 through the belt fixing bar 40.
[Disclosure] [Technical Problem]
It is, therefore, an object of the present invention provides a locking device for safety belt in that a horizontal belt and a diagonal belt using a belt fixture are penetrated through lower and upper portions
thereof respectively, so that an angle of the diagonal belt can be freely adjusted so as to be fit for a body of small adult or children during wearing of the diagonal belt and horizontal belt, whereby a passenger can feel the best wearing state. Also, another object of the present invention provides a locking device for safety belt, in that convex portions of elastic springs are protruded toward inclined grooves of the belt fixture and are elastically fixed to both sides of a belt fixing bar to be locked, so that the belt fixing bar is not slid down the lower portion of the inclined groove, whereby preventing the unbinding of the diagonal belt.
[Technical Solution]
To achieve the above objects of the present invention, there is provided a locking device for safety belt having a buckle type belt fixture of a length adjustment device coupled to a back seat of a car, a diagonal belt and a horizontal belt vertically penetrated into a belt through hole through a belt fixing bar respectively, two inclined grooves formed at both sides of the belt fixture, the belt fixing bar moved along the inclined grooves so as to couple the diagonal belt, coupling protrusions and bolt coupling holes formed at both sides of an upper portion of a lower body respectively, coupling grooves of the belt fixture for inserting the coupling protrusions of the lower body therein, and bolts for inserting into the bolt coupling holes comprising: circular
grooves and linear grooves integrally formed at and penetrated into lower sides of each inclined groove formed at both sides of the belt fixture of the length adjustment device, in which the belt fixing bar is inserted; elastic springs having an upper convex portion inserted into the circular groove and protruded toward the inclined groove and a lower supporting portion inserted and fixed into the linear groove integrally formed at the lower portion of the circular groove; and the lower body fixed into the lower portion of the belt fixture having the elastic springs therein so as to support and fix the elastic springs; whereby the belt fixing bar can be elastically locked through the upper convex portion of the elastic spring during fixing of the diagonal belt via the belt fixing bar.
Also, two screw holes are formed at inside walls of each inclined groove formed at both sides of the belt fixture, in which the belt fixing bar is inserted, and spherical type springs having a screw coupling groove located at the lower portion thereof are formed at the inside walls of each inclined groove so as to be coupled and fixed by means of screws.
[Advantageous Effects]
As described above, according to the locking device for safety belt, the horizontal belt and the diagonal belt using the belt fixture are penetrated through the lower and upper portions thereof respectively, so that the angle of the diagonal belt can be freely adjusted so as to be fit for the body of small adult or children during wearing of the diagonal
belt and horizontal belt, whereby the passenger can feel the best wearing state. Also, the convex portions of the elastic springs are protruded toward the inclined grooves of the belt fixture and are elastically fixed to both sides of the belt fixing bar to be locked, so that the belt fixing bar is not slid down the lower portion of the inclined groove, whereby preventing the unbinding of the diagonal belt.
[Description of Drawings]
The above as well as the other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic perspective view illustrating a conventional length adjustment device for safety belt;
FIG. 2 is a schematic exploded perspective view illustrating a conventional length adjustment device for safety belt;
FIG. 3 is a schematic exploded perspective view illustrating a locking device for safety belt according to the present invention;
FIG.4 is a front sectional view illustrating a locking device for safety belt according to the present invention; FIG.5 is a perspective view illustrating an install state of the locking device for safety belt according to the present invention.
FIG. 6 is a schematic exploded perspective view illustrating a locking device for safety belt according to another embodiment of the present invention; and
FIG.7 is a front sectional view illustrating a locking device for safety belt according to another embodiment of the present invention.
[Best Mode]
A preferred embodiment of the invention will be described in detail below with reference to the accompanying drawings. FIG. 3 is a schematic exploded perspective view illustrating a locking device for safety belt according to the present invention, FIG.4 is a front sectional view illustrating a locking device for safety belt according to the present invention, and FIG. 5 is a perspective view illustrating an install state of the locking device for safety belt according to the present invention. The locking device for safety belt according to the present invention will be described in detail below with reference to FIG. 1 and FIG.2.
As shown, the locking device for safety belt according to the present invention includes a buckle type belt fixture 10 of a length adjustment device 100 coupled to a back seat of a car, a diagonal belt 100b and a horizontal belt 100a vertically penetrated into a belt through hole 30 through a belt fixing bar 40 respectively, two inclined grooves 90 formed at both sides of the belt fixture 10, the belt fixing bar 40 moved
along the inclined grooves 90 so as to couple the diagonal belt 100b, coupling protrusions 160 and bolt coupling holes 170 formed at both sides of an upper portion of a lower body 110 respectively, coupling grooves 190 of the belt fixture 10 for inserting the coupling protrusions 160 of the lower body 110 therein, and bolts 20 for inserting into the bolt coupling holes 170.
Also, the locking device for safety belt according to the present invention further includes circular grooves 91 and linear grooves 92 integrally formed at and penetrated into lower sides of each inclined groove 90 formed at both sides of the belt fixture 10 of the length adjustment device 100, in which the belt fixing bar 40 is inserted, elastic springs 200 having an upper convex portion 201 inserted into the circular groove 91 and protruded toward the inclined groove 90 and a lower supporting portion 202 inserted and fixed into the linear groove 92 integrally formed at the lower portion of the circular groove 91, and the lower body 110 fixed into the lower portion of the belt fixture 10 having the elastic springs 200 therein so as to support and fix the elastic springs 200. Accordingly, the belt fixing bar 40 can be elastically locked through the upper convex portion 201 of the elastic spring 200 during fixing of the diagonal belt 100b via the belt fixing bar 40.
Hereinafter, description will be made regarding an operation and an effect of the locking device for safety belt according to the present invention.
As shown in FIG. 1 through FIG. 5, where it adjusts the safety belt so as to be fit for the passenger' s body, the lower body 110 located at the lower portion of the belt fixture 10 is separated and the diagonal belt 100b and the horizontal belt 100a are positioned at the upper and lower portions of the belt fixing bar 40 respectively. Then, the coupling protrusions 160 of the lower body 110 are inserted into the coupling grooves 190 of the belt fixture 10 and the bolts 20 are coupled to the bolt coupling holes 170, so that the diagonal belt 100b and the horizontal belt 100a are vertically penetrated into the belt through hole 30 through the belt fixing bar 40 respectively.
Accordingly, it pushes up the belt fixing bar 40 located between both inclined grooves 90 of the belt fixture 10 along the inclined grooves 90, so that the diagonal belt 100b is coupled and fixed to the belt fixture 10. Here, in a state that the circular grooves 91 and the linear grooves 92 are integrally formed at and penetrated into the lower sides of each inclined groove 90 formed at both sides of the belt fixture 10, in which the belt fixing bar 40 is inserted, the upper convex portion 201 of the elastic springs 200 is inserted into the circular groove 91 and protruded toward the inclined groove 90 and the lower supporting portion 202 is inserted and fixed into the linear groove 92 integrally formed at the lower portion of the circular groove 91.
Accordingly, when the diagonal belt 100b is fixed by pushing the belt fixing bar 40 with the user' s hand along the inclined groove 90, the belt fixing bar 40 is elastically latched on the upper convex portion 201 of the elastic spring 200, so that the belt fixing bar 40 is not slid down the lower portion of the inclined groove 90 to be locked, thereby preventing the unbinding of the diagonal belt 100b.
Here, the lower body 110 is fixed into the lower portion of the belt fixture 10 having the elastic springs 200 therein, so that the elastic springs 200 can be firmly supported and fixed thereon without missing it.
FIG. 6 is a schematic exploded perspective view illustrating a locking device for safety belt according to another embodiment of the present invention and FIG. 7 is a front sectional view illustrating a locking device for safety belt according to another embodiment of the present invention.
As shown, in the locking device for safety belt according to another embodiment of the present invention, two screw holes 210 are formed at inside walls of each inclined groove 90 formed at both sides of the belt fixture 10, in which the belt fixing bar 40 is inserted, and spherical type springs 230 having a screw coupling groove 220 located at the lower portion thereof are formed at the inside walls of each inclined groove 90 so as to be coupled and fixed by means of screws 240. Similarly, since a top portion of the spherical type springs 230 is protruded from
the inside wall of the inclined groove 90, in which the belt fixing bar 40 is inserted, the belt fixing bar 40 is elastically latched on the top portion of the spherical type springs 230 protruded from the inside wall of the inclined groove 90 during transfer of belt fixing bar 40 along the inclined groove 90, so that the belt fixing bar 40 is not slid down the lower portion of the inclined groove 90 to be locked, thereby preventing the unbinding of the diagonal belt 100b.
While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.
[Industrial Applicability] The present invention relates to a locking device for safety belt capable of locking a safety belt by fixing a belt fixing bar through a convex portion of a spring during fixing of a diagonal belt via the belt fixing bar, in that the convex portion of the elastic spring is protruded toward inclined grooves of a buckle type belt fixture of a length adjustment device for freely adjusting the length of the safety belt so as to be fit for the passenger' s body.