KR20010017993A - Seat belt buckle - Google Patents

Abstract

PURPOSE: An assembly for buckling seat belt is provided to minimize abnormal dissociation in locking and unlocking of a seat belt and to stabilize structure. CONSTITUTION: A seat belt buckling assembly includes: a release button(500) having a protruding end(530); a locking block(400) having a slope face for vertical and horizontal movement in a frame(100); a locking unit(200) combined to guiders(202) for the locking block and a third spring(630); and an ejector(600) combined to a guide groove(103) of the frame by a second spring(620) for guiding the locking of the locking unit. Additionally, a spring settlement part(540) is formed on the rear face of the release button. Two hanging sills(203) upwardly irregular are integrally formed in the locking unit. An arc-type support end(130) for supporting the hanging sill is formed in the frame. Herein, the resilient deformation due to an external shock is minimized. Therefore, the abnormal dissociation of the locking unit is minimized.

Description

Seat belt buckle {Seat belt buckle}

The present invention relates to a seat belt fastening device, and more particularly, to a seat belt fastening device that can maintain and release the seat belt wearing state by moving the push button in the insertion direction of the tongue fixed to the seat belt. will be.

In general, a seat belt is provided in a vehicle seat to prevent the occupant from jumping out due to an impact during a crash. These seat belts are designed with the driver's safety in mind.

Such a seat belt is applied to a front seat or a rear seat of a vehicle, and is generally composed of a first belt having a tongue and a second belt having a seat belt fastening device. Here, the tongue is a metal plate formed integrally with the ring formed to connect the end of the first belt, and forms a fixing groove for attaching and detaching the latch of the seat belt fastening device.

The seat belt fastening device capable of mounting and detaching such a tongue means a buckle for the seat belt that is connected to the end of the second belt fixed to the vehicle and that connects and releases the belts at the user's discretion. .

Such seat belt fastening device has a push button type and a sliding button type according to a method of pushing the take-out button. The push button type is generally installed on the rear seat of the vehicle and fastens the belts by fixing the tongue using a latch pressed vertically by the leaf spring. Seat belt fastening devices in this manner can be found in US Pat. Nos. 4,127,922, 4,064,603, and 4,998,328.

In addition, the sliding button type is usually installed on the front seat of the vehicle, and when the sliding type push button is pressed in the same horizontal direction as the inserting direction of the tongue, the tongue is fixed by the sliding operation of the locking block and the locking operation of the locking part. Tighten the belts.

In the locking operation described in the present invention, the spring, the locking block, and the ejector are slid, and the locking groove of the tongue where the latch of the locking part is fixed to the seat belt by moving the upper end of the locking part relative to the wing which is the hinge axis. It is meant to be inserted into and fixed. Further, the release operation described in the present invention means that the latch of the locking portion is released from the fixing groove of the tongue fixed to the seat belt by moving the upper end of the locking portion relative to the wing which is the hinge axis.

Seat belt fastening devices in this manner can be found in US Pat. Nos. 5,718,020, 5,271,129, and 4,899,424.

The seat belt fastening device according to the prior art, as shown in Figure 1, by using a first spring in the frame 10, an ejector (ejector) that can discharge the tongue of the seat belt is inserted into the outside, in conjunction with such ejectors And a locking member 20 for fixing the tongue when the locking operation is performed, and a locking block 40 that moves in the longitudinal direction by using the elastic force of the second spring 42 in the locking portion 20. By pushing the locking block 40, the locking unit 20 is composed of a release button 50 for releasing the locking groove from the tongue.

In addition, as shown in Fig. 2, in the conventional seat belt fastening device, the frame 10 forms a passage in the side walls 17 and 18 so as to slide the ejector 60. Sidewalls 17 and 18 of this frame 10 are formed perpendicular to both sides of the lower plate 16. In addition, a space for sliding the ejector 60 is formed at the center of the lower plate 16.

The ejector 60 is composed of a main body portion and two rear facing portions. In addition, a second fixing end 15 is formed inside the space of the lower plate 16. The second fixing end 15 serves to support the ejector 60 so as to move in the longitudinal direction by fixing the first spring 61.

In addition, the extension ends 51 and 52 of the release button 50 are coupled to be movable in the longitudinal direction at the front upper ends 11 and 12 of the side walls 17 and 18 of the frame 10. In addition, the support bar 13 is fixed to the coupling hole 14 of the frame 10 in the lateral direction, and serves as a jaw to stop the locking block 40, and the locking block 40 during the locking operation It supports in the direction.

In addition, hinge grooves 19 are formed at the rear of the upper end of the side walls 17 and 18 of the frame 10, respectively. In the hinge grooves 19, one notch-shaped locking jaw is formed to protrude from the rear to the front. Wings 21 of the locking portion 20 are hinged to such hinge grooves 19. And the locking part 20 forms the latch 22 which protruded obliquely downward. In addition, a third fixing end 24 is formed in the locking part 20 so as to couple the second spring 42 fastened to the locking block 40. At the end of the locking portion 20, two legs 25 are bent and formed to be integrally formed to be bent close to a right angle in the downward direction for the locking operation. Here, the leg 25 of the locking part 20 serves to generate a locking operation by directly contacting the rear end surface of the ejector 60 when the ejector 60 is pushed in the longitudinal direction.

In addition, both side ends 23 are formed in the locking unit 20 so as to slidably engage the guider 41 of the locking block 40. Here, the locking block 40 forms an inclined camber surface on the planar portion of the locking portion 20. The locking block 40 is made of polyoxymethylene-type acetal resin produced by polymerization of formaldehyde. When the locking block 40 locks the locking portion 20 by using the repulsive force of the second spring 42, the locking block 40 causes the latch 22 of the locking portion 20 to fix the fixing groove of the tongue. Let it be

In such a conventional seat belt fastening device, the release button 50 is pushed to release the inserted tongue. In this case, the release button 50 moves to the inside of the frame 10. The release button 50 moving in this way slides the locking block 40 in the locking part 20 and pushes it backward. At this time, the locking block 40 is operated slidingly in the locking unit 20 by the repulsive force of the second spring (42). In addition, the locking unit 20 is in close contact with the inclined surface of the support bar 13 by the sliding operation of the locking block 40 is moved in the transverse direction, the release operation by the repulsive force of the second spring (42). At this time, the latch 22 of the locking portion 20 which is released is released from the fixing groove of the tongue. In addition, the ejector 60 discharges the tongue from which the latch 22 of the locking unit 20 is separated from the fixing groove to the outside.

However, the seat belt fastening device according to the prior art is separated into a frame and a support bar, and has a relatively unstable structure, so that the latch of the locking part may be released from the fixing groove of the tongue by an unexpected shock and vibration. This results in abnormal dissociation such as ejector actuation and ejecting the tongue.

In addition, in the conventional seat belt fastening device, the driving portion of the release button operates the inclined surface of the locking block directly, thereby causing abnormal dissociation phenomenon of malfunctioning the locking block by external impact or gravity due to the coincidence of contact points during the usual fastening. .

In addition, the conventional seat belt fastening device is composed of a large number of parts, and has a relatively non-airtight frame, there is a disadvantage that the unit cost of the product according to the increase in manufacturing cost increases.

An object of the present invention devised to solve such a problem is an abnormal release during locking and releasing of the seat belt by a frame in which an arcuate support end is integrally formed, and a locking block in which an inclined surface and a side guide are integrally formed. To minimize the phenomenon and to provide a structurally stable seat belt fastening device.

1 is a perspective view for explaining the configuration of a seat belt fastening device according to the prior art,

Figure 2 is an exploded perspective view for explaining the assembly relationship and the operating method of the seat belt fastening device shown in FIG.

Figure 3 is a perspective view for explaining the configuration of the seat belt fastening apparatus according to the first embodiment of the present invention,

4 is an exploded perspective view for explaining the assembly relationship of the seat belt fastening device shown in FIG.

5 and 6 are cross-sectional views for explaining the operating method of the seat belt fastening device shown in FIG.

Figure 7 is an exploded perspective view for explaining the configuration of the seat belt fastening apparatus according to the second embodiment of the present invention.

♣ Explanation of symbols for main part of drawing ♣

100: frame 200: locking part

400: locking block 500: release button

600: ejector 700, 701: outer case

The object of the present invention described above is a locking block having an inclined surface to move in the longitudinal and transverse directions in a frame having a release button having a protruding end and a passage for guiding the release button so as to connect and release the seat belt. And a locking portion coupled to the locking block guiders for inducing longitudinal movement of the locking block and a third spring, and coupled to the second spring in the guide groove of the frame so as to cause the locking operation of the locking block. In the seat belt fastening device including an ejector, a spring seating portion is formed on the rear surface of the release button to seat the first spring, and the locking portion has two springs to prevent elastic deformation caused by the locking block. The locking jaws are formed integrally to be slightly bent upwards, and in front of the frame to support the locking jaws, arcuate Of the support end it is formed into a one-piece, and therefore writing, by minimizing the elastic deformation of the external impact is achieved by a seat belt tightening device, characterized in that at least the locking portion that minimizes dissociation.

In addition, according to the present invention, it is preferable that the first spring coupled to the spring seat is connected by a clip-shaped globe fixed to the support end of the frame.

In addition, according to the present invention, it is preferable that guiders which can be inserted in the guide grooves of the frame are formed at both side ends of the ejector.

In addition, according to the present invention, it is preferable that a plurality of impact damping grooves are formed on the upper surface of the locking block.

Further, according to the present invention, it is preferable that corners folded inwardly facing the sidewall of the frame are formed so as to improve the engagement state of the locking portion.

In addition, according to the present invention, it is preferable that the lower frame of the frame is formed with corners extending forward to smoothly slide the guider of the release button.

In addition, according to the present invention, it is preferable that protruding support rods each having a release stopper are vertically formed on the rear surface of the release button so as to prevent a slight twist due to the coupling clearance when the release button is pressed.

In addition, according to the present invention, it is preferable that the fourth supporting rods are respectively coupled to the protruding support rods to provide a restoring force of the release button.

Hereinafter, with reference to the accompanying Figures 3 to 7 will be described in detail with respect to the seat belt fastening apparatus according to the preferred embodiments of the present invention.

<First Embodiment>

3 is a perspective view for explaining the configuration of the seat belt fastening device according to the first embodiment of the present invention, Figure 4 is an exploded perspective view for explaining the assembly relationship of the seat belt fastening device shown in FIG. 5 and 6 are cross-sectional views for explaining a method of operating the seat belt fastening device shown in FIG.

First, as shown in FIG. 3, the seat belt fastening device according to the first embodiment of the present invention includes a release button 500 having a first spring 541, a spring seating portion 540, and a glove 542. In order to release the tongue by pressing the release button 500 in the same direction as the seating direction of the tongue of the seat belt, the integral frame 100 and the two locking projections 203 are integrally formed at the front to prevent elastic deformation. It has an ejector 600 having a locking unit 200, a locking block 400 for supporting the locking unit 200, guiders 610 formed at both ends, and exterior cases 700 and 701. .

In addition, as shown in Fig. 4, the frame 100 is formed integrally with the arcuate support end 130. The lower end of the arcuate support end 130 is vertically bent and formed integrally with the lower plate 160. In addition, at both rear sides of the lower plate 160, sidewalls 110 and 120 vertically formed by cutting the iron plate member are integrally formed. In particular, both front corners 101 of the lower plate 160 extend forward to smoothly slide the guider 510 of the release button 500. In addition, the upper corners 102 of the sidewalls 110 and 120 are formed to slightly enter inwardly to prevent separation of the locking portion 200 to be mounted. In addition, guide grooves 103 for inducing movement of the ejector 600 are formed at the lower sides of the sidewalls 110 and 120, respectively, and hinge grooves 104 are formed thereon. Here, the hinge grooves 104 are formed so that the jaws 105 and 106 face each other inwardly. These jaws (105, 106) is a good coupling state of the wing 210 of the locking portion 200 is coupled to the hinge groove (104). The frame 100 formed as described above is formed to have an airtight structure that can maximize structural safety and reduce manufacturing costs.

In addition, protruding support rods 521 and 522 each having a release prevention jaw 520 are vertically disposed on the rear surface of the release button 500 so as to support the release button 500 without the slight twisting caused by the coupling play when the button is pressed. Formed. At the center of the back surface of the release button 500, a protrusion 530 having an inclined surface is formed to push the locking block 400 and to support the upward movement. A spring seating portion 540 is formed above the protrusion 530 to insert the first spring 541 for returning the release button 500 to its original position during the release operation. Here, the spring is connected to the clip-shaped globe 542, it is coupled to the arcuate support end 130 of the frame 100.

The ejector 600 is coupled to the frame 100 by a second spring 620. In addition, the two guiders 610 are protruded at the side end of the ejector 600, and are fastened to the guide grooves 103 of the frame 100, so that the two guiders 610 are not easily separated in the vertical direction and can perform a smooth sliding operation. .

In addition, the locking unit 200 is disposed above the ejector 600. Since the locking jaws 203 of the locking portion 200 are caught by the arcuate support end 130 of the frame 100, even when an unexpected shock is applied, the locking jaw 203 may effectively support the elastic deformation of the locking portion 200. Play a role. The locking portion 200 is formed integrally with the latch 201 of the half tube shape inclined in all directions to be fastened to the fixing groove of the tongue. In addition, locking block guiders 202 for inducing a sliding operation of the locking block 400 are formed at both side ends of the locking unit 200 to slightly protrude. In addition, the first wing 210 and the second wing 220 for hinge operation are formed at both rear ends of the locking part 200 in parallel. Two legs 230 which are bent downward to be slightly curved are formed at the rear of the locking part 200 in which the wings 210 and 220 are formed. These legs 230 are in contact with the ejector 600 retracted by the insertion of the tongue, and serves to rotate the front portion of the locking portion 200 relative to the first wing 210 in the downward direction.

The locking block 400, which is supported by the third spring 630, is fastened to the locking unit 200. A plurality of impact damping grooves 402 are formed on the upper surface of the locking block 400. In addition, the front surface of the locking block 400 is formed with an inclined surface 411 so as to operate in a sliding treatment with the protruding end 530 of the release button 500. In addition, locking block guides 401 protruding in the lateral direction are formed at both sides of the locking block 400. Here, the locking block guiders 401 are formed so that their ends are bent inward so as to slide to the locking block guiders 202, respectively.

In the following, the operating method of the seat belt fastening device of the present invention described in detail above.

First, as shown in FIGS. 5 and 6, first, the user holds the tongue 800 of the seat belt by hand to wear the seat belt, and inserts it into the insertion hole 109 of the seat belt fastening device of the present invention (a). Let's do it. In such a case, the tongue 800 enters along the insertion hole 109 and pushes the ejector 600 backward. The pushed ejector 600 moves horizontally along the guide groove of the frame 100 and pushes the legs 230 of the locking part 200 to the rear. At this time, the locking part 200 rotates the front part slightly based on the first wing 210. The latch 201 of the locking part 200 rotated as described above is fastened to the fixing groove 810 of the inserted tongue 800, thereby fixing the tongue 800 not to come out. In addition, the locking block 400 stopped by the support end 130 of the frame 100 moves downward in association with the operation of the locking unit 200. In addition, the locking block 400 is inserted into the space between the support end 130 and the locking portion 200 of the frame 100 by the elastic force of the third spring 630. In this case, the locking block 400 is supported by the support end 130, thereby limiting the movement of the locking unit 200 in the vertical direction.

The tongue 800 of the seat belt fastened in this way is released (b) when the user presses the release button 500 in the axial direction (c). In such a case, the protruding end 530 of the pressed release button 500 pushes the inclined surface 411 formed at the center of the locking block 400. At this time, the locking block 400 is pushed out of the support end 130 by the third spring 630 and moves upward. The locking block 400 which moves upward in such a manner as to raise the locking part 200 by the surface contact of the inclined surface 411 and the support end 130 of the locking block 400 by the repulsive force of the third spring (630). Rotate slightly in the direction. At this time, the two locking jaws 203 of the locking part 200 are caught by the support end 130 so that the locking part 200 can no longer be rotated. In addition, the latch 201 of the locking portion 200 exits from the fixing groove 810 of the tongue 800. In addition, the latch 201 is pulled out, and the tongue 800 in which the fixed state is released is discharged to the outside by the ejector 600 supported by the repulsive force of the second spring 620. Then, the release button 500 is returned to the original position by the first spring 541.

<Second Embodiment>

The seat belt fastening device of the present invention described in this embodiment is the same as the technique of the first embodiment except that the fourth springs are respectively coupled to two protruding support rods so as to stably return the release button. Therefore, the same or corresponding reference numerals will be given to the same or corresponding components in FIGS. 1 to 7, and the description thereof will be omitted here.

In the drawings, Figure 7 is an exploded perspective view for explaining the configuration of the seat belt fastening apparatus according to the second embodiment of the present invention.

First, fourth springs 543 and 543 ′ for giving a restoring force of the release button 500 are coupled to the protruding support rods 521 and 522 formed on the rear surface of the release button 500, respectively. The fourth springs 543 and 543 'coupled to each other are supported by the frame 100 at the same time contacting the arcuate support end 130. When the release button 500 is pressed in the axial direction, the fourth springs 543 and 543 'contract and contract with the elastic force of a predetermined size, thereby restoring the release button 500 to its original position. . Since the fourth springs 543 and 543 'are installed on the protruding support rods 521 and 522 to minimize the torsion, respectively, the fourth springs 543 and 543' provide a stable restoring force in the axial direction of the release button 500, and the user releases them. When the button 500 is used, it provides a higher convenience of use, relieves the tension transmission element due to the impulse during burnt-on accident, and serves to operate the release button 500 without twisting.

As described in detail above, the seat belt fastening device of the present invention has an advantage of having a more stable structure by eliminating unnecessary portions and integrally forming an arch-shaped support end.

In addition, since the seat belt fastening device of the present invention is formed integrally with two locking jaws in front of the locking portion to minimize the elastic deformation, the advantage of minimizing abnormal dissociation phenomenon by making the hinge operation of the locking portion stable. have.

In addition, the release button of the seat belt fastening device of the present invention has the advantage that can be smoothly sliding by a plurality of guide bars, the elastic force of the spring.

In addition, the seat belt fastening device of the present invention has the advantage of reducing the manufacturing cost by reducing the number of parts, such as forming the support end integrally to the frame.

The technical idea of the seat belt fastening device of the present invention has been described above with reference to the accompanying drawings, but this is by way of illustration of the best embodiment of the present invention by way of example and not by way of limitation. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (8)

In order to connect and release the seat belt, in the frame 100 having a release button 500 having a protruding end 530 and a passage for guiding the release button 500 to move in the longitudinal and transverse directions. A locking block 200 having an inclined surface, a locking block 200 to which the locking block guiders 202 and the third spring 630 coupled to induce longitudinal movement of the locking block 400 are coupled, and the locking In the seat belt fastening apparatus including an ejector 600 coupled to the second spring 620 in the guide groove 103 of the frame 100 to cause the locking operation of the unit 200, On the back surface of the release button 500, a spring seating portion 540 is formed to seat the first spring 541, The locking unit 200 is integrally formed with two locking jaws 203 to be slightly curved upward to prevent elastic deformation caused by the locking block 400. An arcuate support end 130 is integrally formed at the front of the frame 100 so as to support the locking step 203, thereby minimizing elastic deformation against external impact, thereby preventing the locking portion 200. Seat belt fastening device, characterized in that to minimize the abnormal dissociation phenomenon. The method of claim 1, The first spring 541 coupled to the spring seating portion 540 is connected to the clip-shaped globe 542 fixed at the support end 130 of the frame 100, characterized in that the seat belt fastening device. The method of claim 1, The seat belt fastening apparatus, characterized in that the guider 610 that can be inserted in the guide groove 103 of the frame 100 is formed at both side ends of the ejector 600. The method of claim 1, A seat belt fastening apparatus, characterized in that a plurality of impact damping grooves 402 are formed on the upper surface of the locking block 400. The method of claim 1, Side wall (110, 120) of the frame 100 seat belt fastening apparatus, characterized in that the corners (102) folded inwardly opposed to the inner side to form a good state of engagement of the locking portion (200). The method of claim 1, Seat belt fastening device, characterized in that the lower frame 160 of the frame 100 is formed with a corner 101 extending forward to smoothly slide the guider 510 of the release button 500 . The method of claim 1, Protruding support rods 521 and 522 are provided vertically on the back surface of the release button 500 so as to prevent slight twisting due to engagement clearance when the release button 500 is pressed. Seat belt fastening apparatus characterized in that. The method according to claim 1 or 7, The protruding support rods (521, 522) is a seat belt fastening device, characterized in that the fourth spring (543, 543 ') for providing a restoring force of the desired release button 500 is coupled to each other.