JPH0575023U - Anchor for seat belt - Google Patents

Abstract

(57) [Summary] [Purpose] Even if the anchor bolt is made long,
The member around the anchor bolt is fixed without deformation. [Structure] O outside the vehicle interior of the first anchor reinforcement 11
A second anchor reinforcement 15 is joined to the second anchor reinforcement 15, and a weld nut 24 is fixed to the second anchor reinforcement 15. Further, a pillar garnish 17 made of synthetic resin is mounted on the vehicle interior side R of the pillar inner panels 7 and 8, and the anchor bolts 19 are installed from the vehicle interior side R of the pillar garnish 17 to the second anchor reinforcement 15. It has a long shape extending to the outside O of the vehicle compartment and is screwed into the weld nut 24. A through ring 22 is fixed to a head portion 20 of the anchor bolt 19 via a pipe-shaped member 21, and a seat belt is loosely inserted in the through ring 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seat belt anchor to which a load from the seat belt is input.

[0002]

[Prior Art]

 As a conventional anchor for a seat belt, the anchor shown in FIGS. 5 and 6 has been proposed (see Japanese Patent Laid-Open No. 62-94455). That is, a rear pillar 43 which stands from the rear fender 41 to the roof 42 is provided at the rear part of the body 40 of the sedan type vehicle. The rear pillar 43 has a closed cross-section structure in which a pillar outer panel 44 located outside the vehicle interior O and a pillar inner panel 45 located inside the vehicle interior R are joined, and a pillar reinforcement 46 and an anchor reinforcement 47 are provided inside. And are fixed. The anchor reinforcement 47 has a substantially U-shaped cross section, one end of which is fixed to the pillar reinforcement 46 and the other end of which is superposed on the pillar inner panel 45.

An anchor bolt 48 is inserted into the pillar inner panel 45 and the anchor reinforcement 47, and an end portion of the anchor bolt 48 protruding into the rear pillar 43 is a weld nut fixed to the anchor reinforcement 47. It is screwed to 49. Further, a through ring 51 is fixed to an end portion of the anchor bolt 48 protruding toward the vehicle interior side R via a bracket 50, and a seat belt 52 is loosely inserted in the through ring 51.

In such a structure, the seat belt 52 restrains the body of an occupant seated in the rear seat, so that when the body of the occupant moves due to inertia such as in a frontal collision, the seat belt 52 passes through the through-ring 51 and the bracket 50. A load is input to the anchor bolt 48 in a direction orthogonal to each other. At this time, the anchor bolt 48 is inserted not only in the pillar inner panel 45 but also in the anchor reinforcement 47, which is a rigid member superimposed on the pillar inner panel 45. Therefore, even if the anchor bolt 48 receives the above input, the pillar inner panel 45 is not deformed around the anchor bolt 48, and the occupant can be reliably restrained by the seat belt 52.

[0005]

[Problems to be solved by the device]

 However, in an actual vehicle interior structure of an automobile, as shown in FIG. 7, an interior member such as a pillar garnish 53 is generally arranged on the vehicle interior side R of the pillar inner panel 45. Moreover, today, with the automation of various outfitting components, various wiring components such as the harness 54 and the drain hose 55 from the sunroof are housed between the pillar inner panel 45 and the pillar garnish 53. Therefore, the gap between the pillar inner panel 45 and the pillar garnish 53 tends to increase, while the through ring 51 and the bracket 50 into which the seat belt 52 is loosely inserted are the members to be arranged on the vehicle interior side R. As shown, it becomes necessary to lengthen the anchor bolt 48.

When this long anchor bolt 48 is used, the load input from the seat belt 52 via the through ring 51 and the bracket 50 is applied to one end of the anchor bolt 48. Therefore, a bending stress due to a moment corresponding to the length of the anchor bolt 48 is input to the pillar inner panel 45 and the anchor reinforcement 47 that support the other end of the anchor bolt 48, whereby the pillar inner panel 45 and the anchor reinforcement 45 are input. There was a risk that the force bolt 47 around the anchor bolt 48 would be deformed.

The present invention has been made in view of such conventional problems. Even when the anchor bolt is elongated, the anchor bolt is fixed without deformation of the member around the anchor bolt. The purpose of the present invention is to provide an anchor for a seat belt that can be used.

[0008]

[Means for Solving the Problems] In order to solve the above problems, according to the present invention, first pillars having a closed cross section formed in a vehicle body have first rigidity that is opposed to each other with a gap. A member and a second rigid member are fixedly provided, and an anchor bolt having a through ring provided at one end thereof is penetrated through the first and second rigid members, and at least one of the rigid members is provided. The anchor bolt is fixed.

[0009]

[Action]

 In the above structure, since the anchor bolt is inserted through the first rigid member and the second rigid member that are opposed to each other with a space therebetween, they are supported by the respective rigid members at two positions with a space. Therefore, when a load in the direction orthogonal to the seat belt is applied to the end of the anchor bolt through the through ring, stress acts on the anchor bolt in the breaking direction, and each rigidity due to the action of moment is applied. Deformation of the member is avoided.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. That is, as shown in FIG. 2, the vehicle body 1 of the one-box type vehicle is provided with the A pillar 2, the B pillar 3, the C pillar 4, and the D pillar 5. As shown in FIG. 1, the C-pillar 4 is formed by joining a pillar outer panel 6 located outside the vehicle interior O, a rear pillar inner panel 7 and a front pillar inner panel 8 located inside the vehicle interior R. It has a closed cross section.

The C-pillar 4 has a cross-sectional shape along the pillar outer panel 6, and both sides are fixed by being inserted between the flanges of the pillar outer panel 6 and the pillar inner panels 7 and 8. A pillar reinforce 9 is arranged, and an inner pillar reinforce 10 having a substantially U-shaped cross section is fixed to the outer pillar reinforce 9 so as to be in contact with the inner pillar reinforce 10. On both sides of the inner pillar reinforcement 10, both sides of the first anchor reinforcement 11 which constitutes the first rigid member in the present embodiment are fixed.

The first anchor reinforcement 11 has a cross-sectional shape that bulges toward the vehicle interior side R, and a tip surface 14 of the first anchor reinforcement 11 is in contact with the rear pillar inner panel 7. A through hole 12 is formed in a portion where the rear pillar inner panel 7 and the first anchor reinforcement 11 are in contact with each other, and the through hole 12 of the first anchor reinforcement 11 covers the entire circumference thereof. Flange 13 is formed. A second anchor reinforcement 15 constituting a second rigid member in the present embodiment is joined to the vehicle exterior side O of the first anchor reinforcement 11. The second anchor reinforcement 15 is opposed to the above-mentioned tip end surface 14 with a space S, has the same center as the through hole 12, and is provided with a through hole 16 having a smaller diameter than this. At the same time, the weld nut 24 is fixed to the surface of the vehicle outside O.

On the other hand, a pillar garnish 17 made of synthetic resin is mounted on the vehicle interior side R of both the pillar inner panels 7 and 8, and the center of the pillar garnish 17 is the same as the through hole 12. And a through hole 18 having the same diameter is provided. A long anchor bolt 19 extending from the vehicle interior side R of the pillar garnish 17 to the vehicle exterior side O of the second anchor reinforcement 15 is inserted into each of the through holes 12, 16 and 18, and the anchor bolt 19 is It is screwed onto the weld nut 24.

A collar 23 and a pipe-shaped member 21 are fitted on the anchor bolt 19 between a head 20 provided at an end on the vehicle interior side R and a second anchor reinforcement 15, and the head is provided. A pipe-shaped member 21 is supported between the portion 20 and the collar 23. A through ring 22 is inserted through the pipe-shaped member 21, and a seat belt 52 (see FIG. 6) is loosely inserted through the through ring 22. Further, on both sides of the collar 23, between the pillar garnish 17 and both the pillar inner panels 7 and 8, there are provided window portions 25 and 26 provided on the side portion of the vehicle body 1 shown in FIG. An electric curtain harness 27 for supplying electric power to the drive unit of the electric curtain and a drain hose 28 for drainage are arranged.

In the present embodiment having the above-described structure, when the load is input to the seat belt that restrains the occupant, the through ring 22 and the pipe-shaped member 21 are attached to the head portion 20 of the anchor bolt 19. A downward force (in the direction perpendicular to the plane of the drawing in FIG. 1) orthogonal to each other is input via this. However, since the anchor bolt 19 is inserted into the through hole 12 of the first anchor force 11 and the through hole 16 of the second anchor force 15 that are opposed to each other with the space S, the anchor bolt 19 is On the outside O of the passenger compartment, the anchor forces 11, 15 are supported at two locations with a space S.

Therefore, when the downward load is input to the head portion 20 of the anchor bolt 19, the anchor bolt 19 is pressed against the lower portion of the flange 13 provided on the first anchor force 11 via the collar 23. At the same time, it is pressed against the upper edge of the through hole 16 provided in the second anchoring force 15. That is, when the force is input to the head 20, a stress acts on the anchor bolt 19 in the shearing direction, so that the deformation of each anchor force 11, 15 due to the action of moment is avoided. Therefore, the space between the pillar garnish 17 and the pillar inner panels 7 and 8 should be set to accommodate the wiring parts such as the harness 27 for electric curtain and the drain hose 28 between the pillar garnish 17 and the pillar inner panels 7 and 8. As a result, even if the anchor bolt 19 becomes long, the anchor bolts 48 of both anchor reinforcements 11 and 15 are not deformed, and sufficient seat belt fixing performance can be secured. ..

FIG. 3 shows a second embodiment of the present invention, in which the first anchoring force 11 is formed with a through hole 29 having a smaller diameter than the through hole 12 formed in the rear pillar inner panel 7. In addition, a weld nut 24 is fixed, and a flange 13 is formed in the through hole 16 formed in the second anchor force 15. In the second embodiment, the diameter of the through hole 29 formed in the first anchoring force 11 is smaller than that of the through hole 12 formed in the first anchoring force 11 in the first embodiment. Therefore, the opening area of the first anchoring force 11 can be reduced and the strength thereof can be increased.

FIG. 4 shows a third embodiment of the present invention. Unlike the first and second embodiments described above, the second anchoring force 15 is not provided and the first anchor described above is provided. Only a single anchor current 31 having the same configuration as the current force 11 is provided. Further, the inner pillar reinforcement 10 is provided with a raised portion 30 that bulges in the direction R inside the vehicle interior, and the end portion of the anchor bolt 19 is inserted into a through hole 32 provided in the raised portion 30. .. In other words, in the third embodiment, the second anchoring force 15 is not provided, and the anchoring force 31 and the inner pillar reinforcement 10 constitute the first and second rigid members. As a result, the number of parts is smaller than in the above-described respective embodiments, and the weight of the vehicle body and the cost can be reduced.

In each of the embodiments, the weld nut 24 is provided on either one of the first and second rigid members to fix the anchor bolt 19, but the weld nut 24 is fixed on both rigid members. May be provided to fix the anchor bolt 19.

[0020]

[Effect of the device]

 As described above, according to the present invention, the first rigid member and the second rigid member that are opposed to each other with a space are fixedly provided inside the vehicle body, and the first and second rigid members are anchored to each other. In addition to arranging the bolts through, the anchor bolts of at least one of the rigid members are fixed. Therefore, when a load is applied to the end of the anchor bolt in a direction that directly intersects through the through ring, stress can be applied in the shearing direction of the anchor bolt. As a result, even if the anchor bolts are made long in accordance with the convenience of accommodating and arranging the routing components, there is no deformation around the anchor bolts of each rigid member, and sufficient seat belt fixing performance is achieved. Can be secured.

[Brief description of drawings]

FIG. 1 is a sectional view taken along line aa of FIG. 2 showing a first embodiment of the present invention.

FIG. 2 is a side view of a vehicle body provided with the embodiment.

FIG. 3 is a sectional view taken along the line aa of FIG. 2 showing a second embodiment of the present invention.

FIG. 4 is a sectional view taken along line aa of FIG. 2 showing a third embodiment of the present invention.

FIG. 5 is a rear side view of a vehicle body provided with a conventional structure.

6 is a sectional view taken along line bb of FIG. 6 showing a conventional structure.

FIG. 7b of FIG. 6 in the case where a wiring component is housed and arranged between the pillar garnish and the pillar inner panel in the conventional structure.
It is a sectional view taken along the line -b.

[Explanation of symbols]

1 Vehicle Body 4 C Pillar 10 Inner Pillar Reinforcement (Second Rigid Member in Third Embodiment) 11 First Anchorage Force (First Rigid Member in First and Second Embodiments) 15 Second Anchorage Force ( Second rigid member in first and second embodiments) 19 Anchor bolt 22 Through ring 24 Weld nut 31 Anchorage force (first in the third embodiment)
Rigid member) 52 seat belt

Claims (1)

[Scope of utility model registration request] 1. A first rigid member and a second rigid member, which are opposed to each other with a gap, are fixedly provided inside a pillar of a vehicle body,
Anchor bolts provided with a through ring at one end are arranged to penetrate through the first and second rigid members, and
An anchor for a seat belt, wherein the anchor bolt is fixed to at least one of the rigid members.