JPH0453324Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a buckle device attachment structure for attaching a seat belt buckle device used in a vehicle to a stay attached to a vehicle body.

[Prior Art] A seat belt buckle device used in a vehicle is attached to a vehicle body via a stay.

Conventional installation of the stay and buckle device is the fifth step.
As shown in the figure, through holes 10A, 12A, 16 are respectively provided with a stay 10, a sub-plate 12 provided with a pair of locking portions 12B, and a buckle body 16 provided with a notch portion 16C.
A rivet 14 is inserted into A and integrated.

The pair of locking portions 12B of the sub-plate 12 are inserted into the pair of notches 16C, and the stay 10 is placed between the sub-plate 12 and the base portion 16A of the buckle body 16 as shown in FIG. The buckle body 16 is attached to the stay 10 by inserting the rivet 14 into the holes 10A, 12A, 12B and caulking the ends.

[Problems to be solved by the invention] However, in the conventional mounting structure described above, if a large force is suddenly applied to the buckle device during a vehicle emergency, for example, shearing force will be applied to the rivet 14, so it is necessary to use a relatively large diameter rivet 14 for strength reasons. In need of. Further, in order to disperse the shearing force applied to the rivet 14 by the locking portion of the sub-plate 12 inserted into the notch 16C of the buckle body 16 coming into contact with the inner peripheral edge of the notch 16C, the sub-plate 12
Is required. Therefore, there is a problem that the number of parts increases and the production cost increases.

Further, in the above structure, the through hole 16 through which the rivet 14 is inserted is provided in the base portion 16A of the buckle body 16.
A space is required to provide B, and the buckle body 16 needs to be lengthened.

The present invention takes the above facts into consideration and aims to provide a buckle device mounting structure with a small number of parts.

[Means for Solving the Problems] The present invention provides a buckle device including a buckle body provided with a bottom wall and a pair of side walls bent from both sides of the bottom wall, on a stay attached to the vehicle body. A buckle device mounting structure for attaching a buckle device, the buckle device having a through hole formed in a pair of side walls or a bottom wall edge of the buckle body, and integrally formed in the stay and engaged with the through hole to attach the buckle body. a locking part that prevents the stay from coming off the stay; and a fixing means that fixes the stay to the buckle body in a state where the locking part is engaged with the through hole, and the locking part is inserted through the through hole. The buckle body is characterized in that the stay is spaced apart from the bottom wall of the buckle body when the stay and the buckle body are fixed by the fixing means while being engaged with the hole.

[Operation] According to the present invention having the above configuration, the locking portion formed integrally with the stay is engaged with the through hole formed in the pair of side walls or the bottom wall edge of the buckle body. In this state, the stay is fixed to the buckle body by the fixing means. Therefore, in the fixed state, the locking portion of the stay is reliably maintained in the state in which it is engaged with the through hole in the pair of side walls or bottom wall edge of the buckle body. Therefore, in the event of a vehicle emergency, the locking portion comes into contact with the inner peripheral edge of the through hole, thereby preventing the stay from separating from the buckle body.

Furthermore, since the load in a vehicle emergency is supported by the locking part and the through hole, there is no need to install other strength members to support the load as in the past, which reduces the number of parts and reduces production costs. In addition to being able to reduce costs, it is no longer necessary to provide a relatively large diameter through hole in the center of the bottom wall of the buckle body as in the conventional case, so the buckle body and thus the buckle device can be downsized.

In addition, a through hole is formed in the pair of side walls or the bottom wall edge of the buckle body, and the locking part of the stay is engaged with this through hole, so that the internal space near the center of the bottom wall of the buckle body is obstructed. Never. Moreover, when the stay and the buckle body are fixed by the fixing means in a state where the locking part is engaged with the through hole, the stay is separated from the bottom wall of the buckle body. An operating space for, for example, an ejection spring, etc., which is installed and constitutes a functional component of the buckle device, is secured. Therefore, compared to a structure in which the engagement space for engaging the locking portion of the stay with the through hole of the buckle body is provided at a position where interference with functional components is avoided, the buckle device can be made more compact.

[Embodiments] First Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the buckle device mounting structure 18 of this embodiment. Flat stay 20
One end is attached to the vehicle body (not shown), and a pair of locking portions 20A are integrally protruded from both widthwise ends of the other end, forming a substantially T-shape. A bent portion 20B bent at right angles is formed on the side surface of the intermediate portion in the longitudinal direction of the stay 20, and a through hole 20C into which the rivet 22 is inserted is formed in the center of the bent portion 20B.

Buckle body 2 that makes up the buckle device
4 is provided with a pair of side walls 28 bent from both sides of the base portion 26. A rectangular through hole 28A is provided in each of the pair of side walls. A pair of locking portions 20A of the stay 20 are inserted into the pair of through holes 28A, and the buckle body 24 is attached to the stay 20.

An ejector spring 30 is disposed at the base portion 26, and its axis is directed in the longitudinal direction of the buckle body 24. The ejector spring 30 pushes the tongue plate outward from the buckle device when the tongue plate (not shown) engaged with the lock lever (not shown) disposed in the buckle device is disengaged from the lock lever. It's getting old.

Further, the height C from the base portion 26 to the through hole 28A is such that the stay 20 and the edge extension spring 30 do not come into contact with each other.

A through hole 28B is provided near one longitudinal end of the side wall 28, and the rivet 14 is inserted into this through hole 28B together with a through hole 20C provided in the stay 20.

Further, a width dimension A including one of the locking portions 20A of the stay 20 is set smaller than a width dimension B of the base portion 26 of the buckle body 24. However, the overall width G of the stay 12 including the pair of locking portions 20A is larger than the width B of the base portion 26.

Next, a method of attaching the stay 20 to the buckle body 24 will be explained.

One of the pair of locking portions 20A of the stay 20 is inserted into one of the through holes 28A in the direction of arrow D. Next, move the stay 12 in the direction E shown in the figure to release the other locking part 2.
0A into the through hole 28A, and return the stay 20 in the direction E in the figure until the through hole 20C contacts the inside of the side wall 28. By caulking the tip of the rivet 22 after inserting it into the bent portion 20C and the through hole 28B, the stay 12 is prevented from moving in the direction D in the figure, and the occurrence of backlash is prevented.

The operation of the buckle device mounting structure configured as described above will be explained.

After the occupant wears the webbing, the buckle body 24 is constantly subjected to a relatively weak force in the direction F in the figure due to the tension of the webbing, but the through hole 28A
The buckle body 24 is prevented from moving in the direction F in the figure by the locking portion 20A and the rivet 22 inserted therein, and the buckle body 24 is supported by the vehicle body via the stay 20.

In a vehicle emergency, a relatively large force is suddenly applied to the buckle body 24 in the direction F in the drawing due to the inertial force of the occupant. When this force is applied, the buckle body 2
A pair of locking portions 20A of the stay 20 inserted into the four through holes 28A come into contact with the inner peripheral edge of the through holes 28A, thereby preventing the buckle body 24 from moving in the direction F in the drawing. In this way, Buckle Body 24
is supported by the vehicle body via the stay 20, so the occupant can be restrained reliably.

Note that the rivet 22 that prevents the stay 20 from moving in the direction D shown in the figure may be partially broken by applying shearing force in the event of a vehicle emergency, and in this case as well, the locking portion 20A is inserted into the through hole 28A. Since the buckle body 24 is in contact with the peripheral edge, support of the buckle body 24 is reliable. The rivet 22 only needs to have the role of absorbing the looseness after the buckle body 24 and the stay 20 are attached, and it is also possible to use a small diameter rivet.

Note that a bolt may be used as the rivet inserted through the through hole 20C and the through hole 28B. In this case, the buckle body 24 can be attached to the stay 20 by cutting a thread in either the through hole 20C or the through hole 28B and screwing it into the bolt.

Second Embodiment Next, a second embodiment of the present invention will be described. FIG. 3 shows a buckle device mounting structure 32 according to a second embodiment. One end of the flat plate-shaped stay 34 is attached to a vehicle body (not shown), and the other end is formed with a pair of locking portions 34A that protrude from both ends in the width direction and are bent at approximately right angles. This locking part 3
4A has a rectangular tip cut out, and the cutout bottom 34C is cut out from the base 38 of the buckle body 36 when the buckle body 36 and the stay 34 are attached.
It's starting to come into contact with. The height A to the center plane of the stay 34 is such that the ejector spring 40 and the stay 34 do not come into contact when the buckle body 36 is attached to the stay 34. Further, a pair of protrusions 42 formed on both sides of the longitudinally intermediate portion of the stay 34 are provided with rectangular through holes 42A, respectively. This through hole 42A is formed between a pair of side walls 44 of the buckle body 36.
A pair of locking portions 44A formed in are inserted. Base part 3 of buckle body 36
A pair of rectangular through holes 38A are formed in the buckle body 8 extending from the tip of the buckle body 36 in the longitudinal direction. The pair of through holes 38A are for inserting the locking portion 34A of the stay 34.

To attach the stay 34 to the buckle body 36, the pair of locking portions 34A of the stay 34 are inserted into the pair of through holes 38A, and the penetrating tips are bent to form bent portions 34B. At this time, the locking portion 44A of the buckle body 36 is inserted into the through hole 42A, as shown in FIG.
movement of the buckle body 36 in the direction.

This prevents the stay 34 from coming off in the direction B in the figure.

The operation of the second embodiment will be explained.

In a vehicle emergency, a relatively large force is suddenly applied to the buckle body 36 in the direction C in the drawing due to the inertial force of the occupant. When this force is applied, the buckle body 3
A pair of locking portions 34A of the stay 20 inserted into the through hole 38A of No. 6 come into contact with the inner peripheral edge of the through hole 38A, thereby preventing the buckle body 36 from moving in the direction C in the drawing.

In addition, since the locking portion 44A of the buckle body 36 is inserted into the through hole 42A, in the event of a vehicle emergency, the locking portion 44A comes into contact with the inner circumferential edge of the through hole 42A, and the movement of the buckle body in the direction C in the figure is as described above. blocked. Since the buckle body 28 is fixed to the stay 26 by the bent part 26B provided at the tip of the locking part 26A, there is no need to use rivets or the like, and the number of parts is further reduced than in the first embodiment. can do.

Third Embodiment Next, a third embodiment of the present invention will be described. FIG. 4 shows a buckle device mounting structure 46 according to a third embodiment. One end of the flat plate-shaped stay 48 is attached to a vehicle body (not shown), and a pair of locking portions 48A are integrally protruded from both widthwise ends of the other end, forming a substantially T-shape. A pair of protrusions 50 are formed on both sides of the longitudinally intermediate portion of the stay 48, and a pair of rectangular through holes 50A are provided in the pair of protrusions 50. A pair of locking portions 54A formed on a pair of side walls 54 of the buckle body 52 are respectively inserted into the pair of through holes 50A.

Similar to the first embodiment, the buckle body 52 includes a pair of side walls 54, a pair of through holes 54B, and a base portion 5.
6 is formed. Further, a pair of locking portions 54A are provided at the longitudinal ends of the pair of side walls 54,
It is inserted into the through hole 50A of the stay 48 to prevent the buckle body 52 from moving in the direction F in FIG.

Next, a method of attaching the stay 48 to the buckle body 24 will be explained.

As in the first embodiment, the locking portion 48A of the stay 48
After inserting the locking portions 54 of the buckle body 52 into the through holes 54B of the stay 48, respectively,
The buckle body 52 is attached to the stay 48 by inserting the buckle body A and caulking the upper surface of the locking portion 54A.

The operation of the third embodiment will be explained.

In the event of a vehicle emergency, a relatively large force is suddenly applied to the buckle body 52 in the direction F in the drawing due to the penetrating force of the occupant. When this force is applied, the buckle body 5
A pair of locking portions 48A of the stay 48 inserted into the second through hole 54B abut against the inner circumferential edge of the through hole 54B, thereby preventing movement of the buckle body 52 in the direction F in the drawing.

In addition, since the locking portion 54A of the buckle body 52 is inserted into the through hole 50A, in the event of a vehicle emergency, the locking portion 54A comes into contact with the inner peripheral edge of the through hole 50A, thereby preventing movement of the buckle body in the direction F in the figure as described above. be done.

The tip of the locking portion 54A is connected to the through hole 5 of the stay 48.
It is crimped when inserted into 0A. Therefore,
Since the stay 48 is fixed to the buckle body 52, there is no need to use rivets or the like, and the number of parts can be further reduced than in the first embodiment, similar to the second embodiment.

[Effects of the invention] As explained above, in the present invention, the locking part formed integrally with the stay is engaged with the through hole formed in the pair of side walls or bottom wall edge of the buckle body, and in this state. Since both are fixed, it is possible to sufficiently support the load in the event of a vehicle emergency, and the number of parts and production costs can be reduced, and the buckling device can be miniaturized, which is an excellent effect.

In addition, in the present invention, when the stay is fixed to the buckle body, the stay is separated from the bottom wall of the buckle body, so it is possible to secure the operating space for the functional parts, and from this point of view, the buckle device can be made smaller. can be achieved.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the buckle device mounting structure according to the present invention, FIG. 2 is an assembled sectional view taken along the - line in FIG. 1, and FIG.
The figure is an exploded perspective view showing a second embodiment of the buckling device mounting structure according to the present invention, FIG. 4 is an exploded perspective view showing a third embodiment of the buckling device mounting structure according to the present invention, and FIG. FIG. 6 is an assembled cross-sectional view taken along the - line in the figure, and FIG. 6 is an exploded perspective view showing a conventional buckle device mounting structure. 18... Buckle device mounting structure, 20... Stay, 20A... Locking portion, 22... Rivet (fixing means), 24... Buckle body, 32... Buckle device mounting structure, 34... Stay, 34A...
Locking part, 34B...Bending part (fixing means), 36...
...buckle body, 38A...through hole, 46...
Buckle device mounting structure, 48...stay, 48A
... Locking part, 52 ... Buckle body, 54A ...
... Locking part (fixing means), 54B... Through hole.

Claims (1)

[Claims for Utility Model Registration] Installation of a buckle device for attaching a buckle device including a buckle body provided with a bottom wall and a pair of side walls bent from both sides of the bottom wall to a stay attached to a vehicle body. The structure includes a through hole formed in a pair of side walls or a bottom wall edge of the buckle body, and a through hole formed integrally with the stay and engaged with the through hole to prevent separation of the buckle body from the stay. and a fixing means for fixing the stay to the buckle body in a state in which the locking part is engaged with the through hole, and the locking part is engaged with the through hole. The buckle device mounting structure is characterized in that in a state in which the stay and the buckle body are fixed by the fixing means, the stay is spaced apart from a bottom wall of the buckle body.