JP3102539B2 - Pillar structure of shoulder anchor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar structure on which a locking member for guiding a seat belt to an occupant's shoulder is mounted, and more particularly, an anchor plate for mounting the locking member is provided between a pillar outer panel and a pillar inner panel. The present invention relates to a pillar structure of a shoulder anchor portion which is attached to a pillar reinforcement and has a welding hole in the vicinity.

[0002]

2. Description of the Related Art A three-point seat belt is provided in a driver's seat, a passenger seat and the like. A locking member for guiding the three-point seat belt to the occupant's shoulder position is attached to a center pillar or the like by a bolt. As shown in FIG. 7, the pillar 4 has a pillar outer panel 4a and a pillar inner panel 4b joined to each other to form a closed sectional structure, and has a substantially S-shaped cross section for reinforcement between the pillar outer panel 4a and the pillar inner panel 4b. A pillar reinforcement 4c is provided. The above-mentioned bolt is a female screw 7 of the anchor plate 7 joined to the pillar reinforcement 4c.
The hooking member is engaged with the pillar 4 by screwing it with the hooking member a. However, when a load is applied to the occupant and the seatbelt supports the occupant with a force corresponding to the load in order to protect the occupant, the force extends to the pillar 4, and as a result, the pillar reinforcement 4c cannot bear the force and is deformed. The pillar 4 was sometimes deformed.

In order to solve these problems, as shown in FIG. 7, a reinforcement plate 9 is joined by resistance welding to the vicinity of the anchor plate 7 of the conventional pillar reinforcement 4c, and the pillar reinforcement 4 is applied to the hook member. It is not deformed by external force. Further, as other ideas, there have been known ones in which the thickness of the anchor plate itself is increased to increase its size, or those in which the strength is increased by a structure in which a rising portion is provided in four pieces (for example, Shokai Shokai). 58-
104752).

Returning to FIG. 7, on the other hand, the upper part of the pillar 4 is continuous with the roof 8 of the vehicle. Pillar outer panel 4a
The roof 8 is fitted with a step to the upper end thereof, and is joined by welding in that state. In order to prevent this shape loss during welding, horizontally long welding work holes 4d, 4d are provided at positions corresponding to the welding locations of the pillar inner panel 4b and the pillar reinforcement 4c. Welding hole 4
d, 4d, a welding jig is inserted to support the welded portion from the inside, and then the pillar outer panel 4a and the roof 8 from the outside.
Are welded.

[0005]

According to the above measures, the deformation of the pillar due to external force can be improved.
In order to make the fulcrum position of the occupant's seat belt appropriate, it is preferable to dispose the shoulder anchor portion as close to the roof as possible. However, when the anchor plate is joined near the above-described welding hole near the roof, there still remains a problem that the pillar inner panel 4b is deformed from the welding hole that does not form a closed cross section. For this reason, conventionally, the anchor plate 7 had to be attached at a certain distance from the welding hole.

An object of the present invention is to prevent the pillar reinforcement and the pillar inner panel from being deformed by the external force caused by the seat belt even when the anchor plate is attached to a position near the welding hole, and to prevent the passenger's seat belt from being deformed. An object of the present invention is to provide a pillar structure of a shoulder anchor portion which makes a fulcrum position appropriate.

[0007]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1, 5 and 6 corresponding to the embodiment. As shown in FIG. 1 and FIG. 5, the present invention provides a pillar 14 having a closed cross-section structure in which a pillar outer panel 14a and a pillar inner panel 14b are joined to each other to form a closed cross-section between the pillar outer panel 14a and the pillar inner panel 14b. An S-shaped pillar reinforcement 14c is provided, and the pillar reinforcement 14c is provided.
c, the anchor plate 17 is joined, and the anchor plate 1
7 is provided with a locking member 13 for locking the shoulder belt 11a, and an improvement in the body structure of the shoulder anchor portion in which welding inner holes 14d and 14d are provided in the pillar inner panel 14b near the anchor plate 17 and the pillar reinforcement 14c. It is. The characteristic configuration is that the pillar reinforcement 14c is provided between the anchor plate 17 and the welding hole 14d.
substantially trapezoidal bulkhead 19 is set in to prevent deformation of the c
Three sides except the bottom of the bulkhead 19 are in the same direction.
And three sides are pillar reinforcement men
G on the surface constituting the groove portion of the substantially S-shaped cross section
Weld the bulkhead 19 to pillar reinforcement
It is at the place where it is joined to the ment 14c . In addition, it is preferable to attach the bulkhead 29 to the anchor plate 27 as shown in FIG.

[0008]

When a tensile stress is applied to the shoulder belt 11a, a load is applied to the pillar 14 of the shoulder anchor via the hooking member 13. The load is transmitted to the anchor plate 17,
Although the pillar reinforcement 14c tends to deform in the direction in which the load is applied, the deformation is prevented because the bulkhead 19 is provided in contact with the substantially S-shaped groove of the pillar reinforcement 14c.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 5, a three-point seat belt 11 is provided on the driver's seat or the passenger seat in the vehicle interior. The three-point seat belt 11 is an emergency lock type winding device (Em
ergenncy Locking Retrakutor (hereinafter referred to as ELR) 1
2 is attached to the ELR anchor section below the pillar, and the ELR
The seat belt 11 pulled out from the hook 12 is hooked on a shoulder anchor portion above the pillar 14 via a hook member 13,
The end of the seat belt 11 is also attached to the wrap outer anchor 16 below the pillar 14. Hanging member 1
An unillustrated tongue plate is fitted to the seat belt 11 between the lap outer anchor 16 and the wrap outer anchor 16, and the occupant is gripped by the driver's seat by attaching and detaching the tongue plate to and from a buckle provided on an inner belt (not shown). ing. At this time, the ELR 12 normally fits the body with a weak force that does not hinder the movement of the occupant and is not locked, but when the acceleration equal to or more than a preset value acts, the ELR 12 locks the seat belt 11. It has become.

A latching member 13 attached to a shoulder anchor portion above the pillar 14 guides the seat belt 11 from the ELR 12 to the occupant's shoulder. The seat belt 11 is loosely inserted into the hooking member 13, and the seat belt 11 slides as required by the movement of the occupant. The load for gripping the occupant is supported by an inner belt (not shown) and the seat belt 11, and the load applied to the seat belt 11 is supported by the lap outer anchor 16 and the shoulder belt 11a guided by the latch member 13 to the occupant's shoulder. The locking member 13 is locked to a shoulder anchor portion of the pillar 14 by a bolt (not shown).

As shown in FIGS. 1 and 3, the pillar 14 has a closed cross-sectional structure in which a pillar outer panel 14a and a pillar inner panel 14b are joined to each other. A pillar reinforcement 14c having a substantially S-shaped cross section is provided for reinforcement between the pillar outer panel 14a and the pillar inner panel 14b, and both ends thereof are joined by resistance welding. An anchor plate 17 to which the locking member 13 is attached is joined above the pillar reinforcement 14c provided therebetween, and a female screw 17a screwed to the male screw portion of the bolt is welded to the anchor plate 17.
In this example, the anchor plate 17 is formed by bending a steel plate, both ends 17b, 17b are welded to the pillar reinforcement 14c, and the female screw 17a is provided inside the top surface 17c.
Is welded. Top surface 17c is pillar inner panel 14b
The holes 14e and 17d through which male screws can be loosely inserted are provided in the pillar inner panel 14 and the top surface 17c at positions corresponding to the female screws 17a. Bolt is in this hole 14
The hook member 13 (FIG. 5) is attached to the pillar 14 by loosely inserting e and 17d into the female screw 17a.

On the other hand, the upper part of the pillar 14 is the roof 1 of the vehicle.
8 are mounted consecutively. As shown in detail in FIG. 4, a step 18a is provided at the lower end of the roof 18, fitted to the upper end of the pillar outer panel 14a, and joined by welding in that state. This welding is performed while supporting the stepped portion 18a from the inner surface, thereby preventing shape collapse. For this purpose, the pillar inner panel 14b and the pillar reinforcement 1
4c, a horizontally long welding work hole 1 is provided at a position corresponding to the welding position.
4d and 14d are provided. A welding jig is inserted through the welding operation holes 14d provided in this way to support the welding portion from the inside, and then the fitting portion between the pillar outer panel 14a and the roof 18 is welded from the outside.

The feature of this embodiment is that a bulkhead 19 is provided in a pillar reinforcement 14c between an anchor plate 17 and a welding hole 14d. As shown in detail in FIGS. 1 and 2, in this example, the bulkhead 19 is raised in the same direction by sheet metal on three sides except for a substantially trapezoidal bottom, and the size is substantially S-shaped of the pillar reinforcement 14c. Configure the cross-sectional groove
It is configured such that three sides rising on the surface inscribed are inscribed. The bulkhead 19 is assembled by joining the three raised sides by resistance welding in a state of being inscribed in the pillar reinforcement 14c.

[0014] In the pillar structure of the shoulder anchor portion configured as described above, when a load due to acceleration is applied to the occupant,
The seat belt 11 is pulled according to the movement of the occupant. If the acceleration is equal to or higher than the predetermined value set in the ELR 12, the ELR 12 stops pulling out the seat belt 11. As a result, the occupant is maintained in a state of being held by the driver's seat by the seat belt 11 against the load.
The seat belt 11 also supports a load equal to the load received by the shoulder belt 11a on the pillars 14 of the hooking members 13 provided on the shoulder anchor portion to support the load received by the occupant. This load is transmitted to the anchor plate 17 via a bolt to which the retaining member 13 is attached, and the pillar reinforcement 14c tends to deform in the direction of the load received by the shoulder belt 11a. Anchor plate 17 of pillar reinforcement 14c
The bulkhead 19 provided in the vicinity prevents the deformation of the pillar reinforcement 14c by being inscribed and joined to the groove having the substantially S-shaped cross section.

FIG. 6 shows another embodiment of the present invention. In the drawings, the same reference numerals as those of the above-described embodiment indicate the same parts. The pillar 14 includes a pillar outer panel 14a, a pillar inner panel 14b, and a pillar reinforcement 14c. The structure of the pillar 14 is the same as that of the above-described embodiment, and a description thereof will not be repeated. The anchor plate 27 is formed by bending a steel plate, both ends 27b, 27b are welded to the pillar reinforcement 14c, and female screws 27a are welded to the inner surface of the top surface 27c. The top surface 27c extends along the inner surface of the pillar inner panel 14b, and the pillar inner panel 14 and the top surface 27c at positions corresponding to the female screws 27a are provided with holes 27d capable of having male screws. The bolt is in this hole 27
The hook member 13 (FIG. 5) is attached to the pillar 14 by loosely inserting d into the female screw 27a.

The bulkhead 29 is formed substantially trapezoidal, three sides except the bottom is raised in the same direction by the sheet metal, approximately the size of the pillar reinforcement member 14c
It is configured such that the three rising sides are inscribed on the surface constituting the groove portion of the S-shaped cross section . The bottom has a rising portion raised in the opposite direction, and the tip of the rising portion is configured to overlap the inside of the top surface of the anchor plate 17. This overlapping portion is joined by resistance welding. Bulkhead 2
In a state where the three sides rising in the same direction 9 are inscribed in the pillar reinforcement 14c, the ends 27b, 27b of the anchor plate 17 are also in the pillar reinforcement 14c.
It is assembled by abutting on c and joining by resistance welding. The operation of the pillar structure of the shoulder anchor unit configured as described above is the same as that of the above-described embodiment, and the description thereof will not be repeated. Na us, overlapping the leading end of the rising portion of the bulkhead and top inner anchor plate in the embodiment is discussed later, has been joined to the overlapping portions by resistance welding, the joining method may be other welding method is not limited thereto, Further, the bulkhead and the outer panel may be formed integrally.

[0017]

As described above, according to the present invention, a bulkhead for preventing deformation of a pillar reinforcement having a substantially S-shaped cross section between an anchor plate and a welding work hole is provided with a substantially S-shaped bulkhead. Since it is provided inscribed in the groove of the cross section, even if the anchor plate is mounted near the welding hole, the pillar reinforcement and the pillar inner panel are not deformed by the external force caused by the seat belt, and The fulcrum position of the seat belt can be made appropriate.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a pillar structure of a shoulder anchor portion according to an embodiment of the present invention.

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

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a sectional view taken along line CC of FIG. 1;

FIG. 5 is an internal view of a vehicle having a pillar structure according to the present invention.

FIG. 6 is a view corresponding to FIG. 1 and illustrating another embodiment of the present invention.

FIG. 7 is a diagram corresponding to FIG. 1 showing a conventional example.

[Explanation of symbols]

 11a Shoulder belt 13 Hook member 14 Pillar 14a Pillar outer panel 14b Pillar inner panel 14c Pillar reinforcement 14d Welding work hole 17,27 Anchor plate 19,29 Bulkhead

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B62D 25/04

Claims (2)

(57) [Claims] 1. A pillar (14) having a closed cross-sectional structure formed by joining a pillar outer panel (14a) and a pillar inner panel (14b) to each other between the pillar outer panel (14a) and the pillar inner panel (14b). Is provided with a pillar reinforcement (14c) having a substantially S-shaped cross section, an anchor plate (17, 27) is joined to the pillar reinforcement (14c), and a shoulder belt (11) is attached to the anchor plate (17, 27).
a) is attached to the pillar inner panel (14b) and the pillar reinforcement (14c) near the anchor plate (17, 27).
In the body structure of the shoulder anchor portion provided with 14d), deformation of the pillar reinforcement (14c) in the pillar reinforcement (14c) between the anchor plate (17, 27) and the welding work hole (14d). Prevent almost trapezoidal
Jo bulkhead (19, 29) is provided for, the three sides except the bottom side of the bulkhead (19) is in the same direction standing
The three sides are connected to the pillar reinforcement
(14c) on the surface that constitutes the groove of the substantially S-shaped cross section.
Weld the bulkhead (19, 29) to the pillar
A pillar structure of a shoulder anchor portion, which is joined to a forcing (14c) . As claimed in claim 1, wherein the bulkhead (29) A Nkapureto (27)
2. The pillar structure of a shoulder anchor portion according to claim 1, wherein said pillar structure is adhered to said pillar anchor.