JP2580516Y2 - Shoulder belt anchor adjustment device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoulder belt anchor adjusting device for use in a seat belt device for a vehicle, which can adjust the supporting height of a shoulder belt according to the occupant's physique.

[0002]

2. Description of the Related Art A guide rail which is mounted on a vehicle body and has a plurality of locking holes, a slide member which is guided by the guide rails and which can move in a vertical direction, and a plurality of locking holes provided in the slide member. A shoulder belt anchor adjustment device including a restraining means for selectively engaging and restraining a slide member at an engagement position, and an operating means capable of releasing the restrained state, wherein the slide member is provided on a guide rail. Conventional shoulder belt anchor adjustment, in which a resin component is sandwiched between the slide member and the stopper to prevent the sound of metal-to-metal contact when the stopper is stopped from moving downward due to contact with the stopper As an apparatus, there is, for example, one disclosed in Japanese Utility Model Publication No. 4-4915.

[0003] As shown in FIG.
Reference numeral 0 denotes a slide block 48 made of metal, a saddle 46, and a shoe 44 made of synthetic resin. The slide member 50, which is assembled with these, comes into contact with a stopper 72 provided on a guide rail 66, and moves downward. When the movement of the shoe 46 is restricted, the shoe 46 is disposed so as to be sandwiched between the slide block 48 and the stopper 72 in order to prevent a contact sound between the metal members. The lock pin 56 movably provided in the vertical direction with respect to the guide rail 66 is configured to securely engage with a plurality of locking holes 70 provided in the guide rail 66 at a central position thereof. is there.

[0004]

However, in the conventional example described above, the resin shoe of the slide member is sandwiched between the slide block and the stopper, so that contact between the metal parts can be prevented. May be crushed and broken due to the resin, in which case, the shift restriction position to the lower side of the slide member changes and the engagement position between the lock pin and the lock hole is shifted, and the lock pin is There was a problem of not engaging. The present invention has been made in view of such a conventional problem, and a resin component that prevents a metal component from abutting with each other is damaged, and the shift restriction position of the slide member to the lower side is changed. It is an object of the present invention to solve the above-mentioned problem by adopting a configuration in which the lock pin reliably maintains the engagement state with the locking hole even in the case where the locking pin is engaged.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to support a webbing via a guide rail mounted on a vehicle body and having a plurality of locking holes, and a through anchor, and to guide the webbing up and down by the guide rail. A slide member movable in the direction, and a slide member provided so as to be displaceable in the slide member and selectively engaging with the locking hole at each position in the vertical direction of the guide rail to prevent movement from the position. Means for restraining the slide member, and operating means for releasing the restrained state of the slide member by the restraint means, wherein the slide member abuts a stopper provided on the guide rail, and the slide member moves downward. In the shoulder belt anchor adjusting device configured to restrict the position so as to prevent the sliding, the metal between the slide base of the slide member and the stopper To prevent the contact of the between the stopper and the slide base by interposing a resin component, when the slide base is the stopper abuts via the resin component, and said restraining means said guide rail The size of the gap formed between the stopper side of the locking hole and the stopper side is larger than the thickness of the resin component sandwiched between the slide base and the stopper. This is achieved by a shoulder belt anchor adjusting device.

[0006]

In the above construction, of the plurality of locking holes provided in the guide rail, the size of the lowermost locking hole is made larger than that of the other locking holes by the slide base and the stopper.
Restraining means when the slide base is made larger than the thickness of the resin part sandwiched between the slide parts and the slide base abuts on the stopper via the resin part to restrict downward movement.
The gap between the guide rail and the stopper side edge of the locking hole of the guide rail is set by the resin component to stop the slide base and the stopper.
It is configured so that it remains below the restraining means with respect to the vehicle body more than the thickness sandwiched between the restraining means and the restraining means and the lowermost link even if unexpected deformation or breakage of the resin part occurs. Engagement with the stop hole is reliably maintained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. FIG. 1 is a partial cross-sectional front view of a shoulder belt anchor adjusting device 1 according to the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG.
2 is a schematic enlarged view of a main part in FIG. 2, and FIG. 4 is a cross-sectional view taken along line BB in FIG. In the shoulder belt anchor adjusting device 1 of this embodiment, the guide rail 17 has a longitudinal direction in the vertical direction, and its upper end and lower end are fastened to the center pillar 29 in the vehicle cabin with the bolts 12 to be fixed to the vehicle body. The guide rail 17 is made of a steel plate having a substantially U-shaped cross section. The guide rail 17 has a plurality of locking holes 11 disposed at appropriate intervals in the longitudinal direction at the bottom thereof, and is bent at both ends. A guide flange 17a is provided. The locking hole 11 has a lower half formed in a semicircular shape and an upper half formed in a rectangular shape, and an upper edge of the rectangular portion is bent toward the center pillar to form an inclined surface 11a.

A slide member 42 movably provided in the up and down direction guided by the guide rail 17 includes a slide body 41 to which the slide base 2, the slider 3 and the plate 4 are fixed in a face-to-face state. And a control means for releasing the restrained state by the restraint means, and these are covered with a cover 14. The slider 3 is made of resin, and has a groove 3a extending in the longitudinal direction at both ends in the width direction (see FIG. 4). The groove 3a is slidably fitted to the guide flange 17a of the guide rail 17. ing.

The slide base 2 is formed by pressing a flat metal plate, and is located in the space inside the guide rail 17. Both ends in the width direction face the guide flange 17 a with the slider 3 interposed therebetween. I have. With this configuration, the slide base 2 can support the load acting in the direction of arrow B in FIG. 2 on the guide rail 17 via the guide flange 17a. The plate 4 is made of a metal plate, and is located outside the guide rail 17. Both ends in the width direction face the guide flange 17 a while being slightly separated from each other. A base 16 and a garnish 10 on which the components 14 and the like are placed are fixed by screws 15.

Further, an engagement piece 2a bent substantially at a right angle is formed at the upper end of the slide base 2. A nut 5 is caulked and fixed in the vicinity of the lower end of the slide base 2, and a bolt 9 for pivotally supporting the through anchor 21 is screwed thereto. An opening 4a into which the engagement piece 2a is inserted and fitted is formed at the tip of the plate 4.

Then, the engaging piece 2a of the slide base 2, which is the engaging means, is inserted into the opening 4a of the plate 4, and the slide base 2 and one end of the plate 4 are engaged. The other ends of the slide base 2 and the plate 4 are rivet-attached by rivets 7 as fixing means so as to be sandwiched. The slide member 42 configured as described above can be moved up and down by being guided by the guide rail 17 when the slider 3 slides with respect to the guide flange 17a.

The lock pin 6 serving as a restraining means is mounted on the slide base 2 with the return spring 8 and the like incorporated therein.
Is supported by the slide base 2 and the plate 4 by being inserted into a through hole formed in the base. The lock pin 6 is urged in the direction of engagement with the locking hole 11 by the return spring 8 which is a compression spring. That is, since the lock pin 6 is reliably guided and supported in the slide member 42 by the firmly fixed slide base 2 and the plate 4, the lock pin 6 moves downward from the webbing 22 acting on the slide member 42 via the through anchor 21. The load is reliably transmitted to the vehicle body via the guide rail 17.

An operation button 13 as an operation means is guided by a base 16 and a cover 14, and
The operation button 13 is urged in a direction away from each other by a return spring 18. The lock pin 6 is linked to the operation button 13. That is, a wall portion 13a extending in the width direction to a substantially central portion is disposed inside the operation button 13 so as to sandwich the lock pin 6, and an inclined surface is formed on an inner edge of the wall portion 13a. Are formed. On the other hand, an appropriate groove is formed in the upper small-diameter shaft portion of the lock pin 6, and a push nut 19 is fitted in this groove, and both ends of the push nut face the inclined surface of the wall portion 13a. ing. (In the state shown in FIG. 4, the push nut 19 is not engaged with the inclined surface.)

Therefore, if the pair of operation buttons 13 are moved toward each other so as to sandwich the pair of operation buttons 13 from the state shown in FIG. 4, the push nut 19 can push up the inclined surface of the wall portion 13a. Push nut 1
The lock pin 6 to which the fixing pin 9 is fixed moves in the direction of arrow B in FIG. 4 against the elasticity of the return spring. At this time, the large-diameter shaft portion 6c of the lock pin 6 is
Of the slide member is completely released from the locking hole 11, and the restriction on the vertical movement of the slide member is released. Then, when the slide member 42 is moved to an arbitrary position while holding the operation button 13 and the operation button 13 is released, the lock pin 6 is released.
Is inserted into the locking hole 11 at the selected position by the elasticity of the return spring 8, so that the vertical movement of the slide member 42 is restrained again.

Next, with the structure as described above, the slide member 42 abuts the stopper 20 provided on the guide rail at a position below the guide rail 17 and is restricted from moving downward. In order to prevent the abutment noise between the metals, the protrusion 3 formed by the resin slider 3 sandwiched between the slide base 2 and the stopper 20 is used.
b. At this time, the lock pin 6 is engaged with the lowermost locking hole 11 of the guide rail 17, and this locking hole is connected to the slide base 2 and the stopper 20 from the other locking holes. Overhang of slider 3 sandwiched
The portion 3b is formed so as to be larger than the thickness dimension Y. With this configuration, when the slide member 42 comes into contact with the stopper 20, the lock pin 6 and the lowermost locking hole 1
A gap dimension X (X ≧ Y) that is equal to or greater than a partial dimension Y of the slider 3 is provided between the first stopper side edge and the lower side of the vehicle body.
Therefore, even when the slider, which is a resin part, is deformed to be crushed or accidentally damaged, the engagement state, that is, the lock pin 6 is maintained. Of the slide member 42 can be maintained.

In the present invention, as shown in FIG. 5, instead of the overhang 3b of the slider 3, an extension 10a of a resin garnish 10 is provided with a slide base 2 and a stopper 20.
The same effect can be obtained even if it is sandwiched between. In the embodiment shown in FIG. 5, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.

The slide base, slider, plate and the like constituting the slide member according to the present invention are not limited to the shapes of the above-described embodiment, but can be variously modified. The fixing means and the fastening means for fixing are not limited to the means of the above embodiment. That is, as long as an appropriate resin product is interposed between the slide base and the stopper, the configuration is not limited to the configuration of the above-described embodiment. For example, a configuration in which a resin is appropriately provided in the stopper may be used. .

[0018]

As described above, in the present invention, a resin component is interposed between the stopper and the slide base in order to prevent the metal from contacting the slide base and the stopper of the slide member. When the base comes into contact with the stopper via the resin component, the size of the gap formed between the restraining means and the stopper side edge of the locking hole of the guide rail is determined by the resin component. Since the gap is larger than the thickness sandwiched between the slide base and the stopper, even if the resin component is deformed or damaged due to long-term use, the lowermost engagement Engagement of the hole and the restraining means can be reliably ensured.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional front view of an embodiment according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a schematic enlarged view of a main part in FIG. 2;

FIG. 4 is a sectional view taken along line BB in FIG. 1;

FIG. 5 is a schematic enlarged view of a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shoulder belt anchor adjustment device 2 Slide base 2a Engagement piece 3 Slider 3a Groove 3b Overhang 4 Plate 4a Opening 5 Nut 6 Lock pin 7 Rivet 8 Return spring 9 Bolt 10 Garnish 10a Extension 11 Lock hole 12 Bolt 13 Operation button 14 Cover 15 Screw 16 Base 17 Guide rail 18 Return spring 19 Push nut 20 Stopper 21 Through anchor 22 Webbing 41 Slide body 42 Slide member

Claims (1)

(57) [Scope of request for utility model registration] 1. A guide rail attached to a vehicle body and having a plurality of locking holes, a slide member supporting a webbing via a through anchor, and being vertically movable by being guided by the guide rail, and a slide member. Restraining means provided so as to be displaceable at each position and selectively engaging with the locking hole at each position in the vertical direction of the guide rail to restrain the slide member so as to prevent movement from the position; and sliding by the restraining means. Operating means for releasing the restrained state of the member, wherein the slide member is in contact with a stopper provided on the guide rail, and is configured so as to regulate the position so as to prevent the slide member from moving downward. In the shoulder belt anchor adjusting device, the stopper and the stopper are used to prevent the slide base of the slide member from contacting the stopper with the metal. A resin component is interposed between the ride bases, and when the slide base comes into contact with the stopper via the resin component, a gap is formed between the restraining means and the stopper side edge of the locking hole of the guide rail. Wherein the size of the gap formed in the shoulder belt anchor is larger than the thickness of the resin component sandwiched between the slide base and the stopper.