JPH11189129A - Belt retractor fitting structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide belt retractor fitting structure that can improve fitting workability by suppressing the rotation of a belt retractor caused by the pressing force of a fitting bolt at the time of fixing the belt retractor by a bolt and a nut. SOLUTION: A hook part 5a of a fixing bracket 5 is engaged with the upper side of an anchor bracket 8, and a protruding part 9 protruded to the cabin side is provided near the upper edge part of an opening part 4 provided at a pillar inner member 2 protruded upward on the upper side of a housing 3a of a belt retractor 3. An upper end part of a temporary fastening bracket 11 provided protruding upward on the upper side of the housing 3a of the belt retractor 3 is temporarily fixed to the upper part of the opening part 4 of the pillar inner member 2, and the fixing bracket 5 on the lower side of the housing 3a of the belt retractor 3 is brought into pressure contact with a side face, facing the opening part 4, of the anchor bracket 8. The rotation of the belt retractor 3 caused by the pressing force F of a fitting bolt at the time of fixing by a bolt and a nut is therefore suppressed to improve fitting workability.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a belt retractor of an automobile seat belt device.

[0002]

2. Description of the Related Art FIG. 3 shows a mounting structure of a conventional belt retractor for a seat belt device of an automobile. Reference numeral 1 denotes a side sill inner extending in a vehicle front-rear direction. , Above and below flange 1
a, 1a are joined to the side surface of a pillar inner 2, which is a vehicle body panel on the vehicle cabin side extending in the vertical direction.

An opening 4 is formed in a lower portion of the pillar inner 2 as a recess for accommodating a belt retractor 3 for winding and rewinding a seat belt.

[0004] Below the housing 3a of the belt retractor 3, a fixing bracket 5 is disposed so as to protrude downward.

[0005] The fixing bracket 5 has a nut 7 of a mounting bolt 6 to be attached to the vehicle body at the lower end thereof and a hook 5a bent at the upper end.

Reference numeral 8 denotes an anchor bracket for anchoring the fixing bracket 5 to the vehicle body. The anchor bracket 8 is joined to the side surface of the pillar inner 2 in the vicinity of the opening 4, and the hook 5a of the fixing bracket 5 is provided at the upper center. A notch 8a is formed which engages with.

As a specific attachment of the belt retractor 3, the hook 5a at the upper end of the fixing bracket 5 is engaged with the notch 8a at the upper center of the anchor bracket 8, and the belt retractor 3 is connected to the above-mentioned engaging portion. The supporting bracket is rotatably accommodated in the opening 4 of the pillar inner 2, the fixing bracket 5 is overlapped on the side of the anchor bracket 8 facing the opening 4, and the bolt insertion hole 8 b provided in the anchor bracket 8 is inserted into the vehicle interior side. The fixing bolt 5 is screwed into and fastened to the nut 7 at the lower end of the fixing bracket 5, and the fixing bracket 5 is connected to the anchor bracket 8, so that the belt retractor 3 is fixed to the vehicle body. .

[0008]

According to the conventional structure, the belt retractor 3 is accommodated in the opening 4 provided at the lower part of the pillar inner 2, and the fixing bracket provided on the lower side of the housing of the belt retractor 3. 5 is superimposed on the side surface facing the opening 4 of the anchor bracket 8, and when the fastening bolt 6 is to be fastened and fixed to the anchor bracket 8 from the passenger compartment side, the force of inserting the mounting bolt 6 and pressing with a mounting tool or the like. F, the belt retractor 3 is rotated about the engaging portion between the notch 8a of the anchor bracket 8 and the hook 5a of the fixing bracket 5, and the fixing bracket 5 is rotated.
Since the nut 7 at the lower end of the shaft escapes from the mounting bolt 6, there is a problem that the operator has to hold down the belt retractor by hand or the like during the mounting operation (see FIG. 4).

Therefore, the present invention is to improve the workability of mounting the belt retractor without the belt retractor rotating and escaping when the fixing bracket of the belt retractor is fastened to the anchor bracket. The present invention provides a belt retractor mounting structure that can be used.

[0010]

According to a first aspect of the present invention, a belt retractor for winding and rewinding a seat belt is provided in a recess provided in a vehicle body panel on a vehicle compartment side, and a housing for the belt retractor is provided. A structure in which a fixing bracket protruding downward from the lower side is overlapped and connected to a side surface facing the concave side of an anchor bracket portion provided near the concave portion of the vehicle body panel, and is attached to the fixing bracket. A hook portion is provided, and the hook portion is engaged with the upper side of the anchor bracket portion to receive the belt retractor in the recess of the vehicle body panel, and the bracket for temporary fixing protrudes upward above the housing of the belt retractor. Is provided, and the upper end of the temporary fixing bracket is fixed near the upper edge of the concave portion of the vehicle body panel, and the fixing bracket is fixed to the anchor bracket. Is characterized in that connection was.

According to a second aspect of the present invention, a notch is provided on the upper side of the anchor bracket according to the first aspect so as to engage with the hook.

According to a third aspect of the present invention, a guide portion is provided at the upper end of the anchor bracket according to the first and second aspects, the guide portion engaging with the hook portion and slidingly guiding the belt retractor to the mounting position. It is characterized by:

According to a fourth aspect of the present invention, a vertical wall portion projecting upward is provided at a rear end of the guide portion at an upper end of the anchor bracket portion according to the third aspect. .

According to a fifth aspect of the present invention, the upper part of the anchor bracket according to the first to fourth aspects is bent toward the center of the vehicle.

According to a sixth aspect of the present invention, the upper end of the temporary fixing bracket according to any one of the first to fifth aspects is positioned above a temporary fixing point for temporarily fixing the bracket to the vehicle body panel. It is characterized in that second temporary fixing means which engage with each other are set.

According to a seventh aspect of the present invention, a reinforcing bead is provided in a portion of the vehicle body panel according to the first to sixth aspects where the temporary fixing bracket is provided, in a front-rear direction.

According to an eighth aspect of the present invention, a bracket receiving portion for accommodating the temporary fixing bracket is provided in the vehicle body panel according to the first to seventh aspects.

According to a ninth aspect, the reinforcing bead according to the eighth aspect is provided from the bracket receiving portion to the general surface of the vehicle body panel.

[0019]

According to the first aspect of the present invention, a belt retractor for winding and rewinding a seat belt is provided in a recess provided in a vehicle body panel on a vehicle compartment side, and a belt retractor is provided below a housing of the belt retractor. A fixing bracket protruding toward the body is connected to the anchor bracket part provided near the concave part of the vehicle body panel on the side facing the concave side, and a hook part is provided on the fixing bracket. A hook for engaging the hook portion above the anchor bracket portion to receive the belt retractor in the recess of the vehicle body panel, and a temporary fixing bracket protruding upward above the housing of the belt retractor. The upper end of the temporary fixing bracket is fixed near the upper edge of the recess of the vehicle body panel, and the fixing bracket is connected to the anchor bracket. Therefore, even if the mounting bolts are inserted from the vehicle compartment side into the bolt insertion holes provided in the anchor bracket and the anchor bracket and the fixing bracket are fixed with bolts and nuts, the fixing bracket can be pressed against the pressing force of the mounting bolt by a tool or the like. Can be sufficiently opposed to each other, so that the belt retractor does not rotate and the nut at the lower end of the belt retractor does not escape, and the belt retractor can be securely attached, so that the mounting workability can be remarkably improved.

According to the second aspect, in addition to the effect of the first aspect, since the notch portion which engages with the hook portion is provided on the upper side of the anchor bracket portion, the fixing bracket on the lower side of the belt retractor is provided. Positioning can be done.

According to the third aspect, in addition to the effects of the first and second aspects, in addition to the effects of the first and second aspects, a guide portion which engages with the hook portion at the upper end of the anchor bracket portion and guides the belt retractor to the mounting position is provided. Since the hook retracting portion is provided, the belt retractor can be securely mounted at the disposition position by engaging the hook portion with the guide portion and slidingly guiding it during the groping operation.

According to the fourth aspect, in addition to the effect of the third aspect, the vertical wall portion projecting upward is provided at the rear end of the guide portion at the upper end of the anchor bracket portion. ,
The positioning of the fixing bracket on the lower side of the belt retractor can be easily performed.

According to the fifth aspect, in addition to the effects of the first to fourth aspects, since the upper part of the anchor bracket is bent toward the center of the vehicle, the belt retractor is inserted into the recess of the vehicle body panel. At this time, it is possible to avoid interference between the lower portion of the belt retractor and the upper end portion of the anchor bracket.

According to the sixth aspect, in addition to the effects of the first to fifth aspects, the temporary fixing bracket and the vehicle body panel are located above the temporary fixing point for temporarily fixing the upper end of the temporary fixing bracket to the vehicle body panel. And the second temporary fixing means which engages with each other is set, so that the positioning when temporarily fixing the upper end of the temporary fixing bracket can be easily performed, and the temporary fixing point at the upper end and the second temporary fixing point are fixed. Since the temporary fixing is performed at two points with the temporary fixing, the positioning of the fixing bracket below the belt retractor can be reliably and easily performed.

According to the seventh aspect, in addition to the effects of the first to sixth aspects, the reinforcing beads are provided in the front-rear direction at the portion where the temporary fixing bracket is provided on the vehicle body panel. The panel rigidity of the portion where the temporary fixing bracket is provided on the panel can be increased.

According to the eighth aspect, in addition to the effects of the first to seventh aspects, the bracket receiving portion for accommodating the temporary fixing bracket is recessed in the vehicle body panel. The panel rigidity of the disposition portion can be increased.

According to the ninth aspect, in addition to the effect of the eighth aspect, since the reinforcing beads are provided from the bracket receiving portion to the general surface of the vehicle body panel, the temporary fixing bracket is housed in the vehicle body panel. The panel rigidity of the bracket receiving portion can be further increased.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings, in which the same reference numerals are assigned to the same parts as in the above-mentioned conventional configuration.

In FIGS. 1 and 2, reference numeral 1 denotes a side sill inner extending in the front-rear direction of the vehicle. The sill inner 1 has a substantially horizontal hat shape in cross section, and upper and lower flanges 1a, 1a are connected to a vehicle interior extending in the vertical direction. Is joined to a side surface of a pillar inner 2 which is a vehicle body panel of the vehicle.

An opening 4 is formed in a lower portion of the pillar inner 2 as a recess for accommodating a belt retractor 3 for winding and rewinding a seat belt.

At the lower side of the housing 3a of the belt retractor 3, a fixing bracket 5 having a nut 7 of a mounting bolt 6 to be attached to a vehicle body is arranged at the lower end thereof so as to protrude downward. The stop bracket 11 is disposed so as to protrude upward.

The temporary fixing bracket 11 is fixed to a later-described bracket receiving portion 16 of the pillar inner 2 by a screw 12 at a temporary fixing point 11a at an upper end thereof.

At a substantially central portion of the fixing bracket 5, there is provided a hook portion 5a which engages with an upper end portion of the anchor bracket 8 described later.

Reference numeral 8 denotes an anchor bracket for anchoring the fixing bracket 5 to the vehicle body. The anchor bracket 8 is disposed near the opening 4 on the side surface of the pillar inner 2 and has a bracket for fixing the belt retractor 3 substantially at the center thereof. A bolt insertion hole 8b into which a mounting bolt 6 for fixing the fixing bolt 5 is inserted is set.

The anchor bracket 8 extends between the side sill inner 1 and the pillar inner 2 which are frame members of the vehicle body, and has a front portion on a front side surface away from the opening 4 of the pillar inner 2 and a rear portion on the side sill inner portion. The belt input is dispersed to two body frame members by fastening and fixing the bolts 13 and 14 to the side surfaces of the vehicle 1 to increase the support rigidity of the belt retractor 3.

In this embodiment, the anchor bracket 8
A notch 8a for engaging with the hook 5a is formed at the same time, a guide 8c for engaging with the hook 5a to slide and guide, and protruding upward from a rear end of the guide 8c. A positioning means 9 comprising a vertical wall portion 8d is formed.

Further, the upper portions of the anchor brackets 8 are bent toward the inside of the vehicle.

On the other hand, at the upper position of the temporary fixing point 11a on the upper end of the temporary fixing bracket 11, the second temporary fixing means 1 mutually engaging with the temporary fixing bracket 11 and the pillar inner 2 is provided.
5, the locate pin 15 a is temporarily fixed to the bracket 1.
1 and a locate hole 15 b are provided in the pillar inner 2.

A bracket receiving portion 16 for accommodating the temporary fixing bracket 11 is recessed at a portion where the temporary fixing bracket 11 is disposed above the opening 4 of the pillar inner 2, as described above. The reinforcing beads 10 are provided in the front-rear direction from the bracket receiving portion 16 to the front and rear general surfaces of the pillar inner 2.

Particularly, in this embodiment, the reinforcing beads 1
Two 0s are bulged toward the inside of the pillar at appropriate intervals to increase the surface rigidity.

Therefore, the specific attachment of the belt retractor 3 is as follows. First, the hook portion 5a provided on the fixing bracket 5 below the belt retractor 3 is engaged with the guide portion 8c above the anchor bracket 8, and By sliding to the portion 8d, the hook portion 5a is dropped into the notch portion 8a and engaged therewith.

Next, the belt retractor 3 is rotatably accommodated in the opening 4 of the pillar inner 2 with the engaging portion between the notch 8a and the hook 5a as a fulcrum, and the temporary fixing bracket 11 provided on the upper side of the housing 3a is provided. It is accommodated in the bracket receiving portion 16 of the pillar inner 2, and the temporary fixing point 11 a at the upper end is fixed to the pillar inner 2 with the screw 12.

As described above, the upper end of the temporary fixing bracket 11 is fixed to the pillar inner 2 by the screw 12 so that the fixing bracket 5 on the lower side of the belt retractor 3 is fixed.
Comes into pressure contact with the side surface of the anchor bracket 8 facing the opening 4, so that the mounting bolt 6 inserted from the vehicle interior side into the bolt insertion hole 8 b provided at a substantially central portion of the anchor bracket 8 is attached to the fixing bracket 5. Screwed into the nut 7 at the lower end of the
By fastening, the belt retractor 3 can be fixed to the vehicle body via the anchor bracket 7.

In FIG. 1, reference numeral 17 denotes a third cross member arranged in the vehicle width direction.

As described above, according to the structure of this embodiment,
A hook 5a is provided on the upper end of the fixing bracket 5, and the hook 5a is engaged with the upper side of the anchor bracket 8, and the belt retractor 3 is rotated around the opening 4 of the pillar inner 2 using the engaging portion as a fulcrum. A temporary fixing bracket 11 is provided to protrude upward above the housing 3a of the belt retractor 3 while being housed, and the upper end of the temporary fixing bracket 11 is temporarily fixed near the upper edge of the opening 4. Since the fixing bracket 5 is fixed and pressed against the side surface of the anchor bracket 8 facing the opening 4, the bolt insertion hole 8 b provided in the anchor bracket 8 is provided.
Even if the mounting bolt 6 is inserted from the vehicle compartment side and the anchor bracket 8 and the fixing bracket 5 are fixed with bolts and nuts, the fixing bracket 5 can sufficiently oppose the pressing force F of the mounting bolt 6 by a tool or the like. Therefore, the belt retractor 3 does not rotate and the nut 7 at the lower end thereof does not escape, so that the belt retractor 3 can be securely attached, and attachment workability can be significantly improved.

Particularly, in the present embodiment, a notch 8a is formed on the upper side of the anchor bracket 8 to engage with the hook 5a, and the guide 8c engages with the hook 5a to guide the slide. Since the positioning means 9 including the vertical wall portion 8d projecting upward from the rear end of the guide portion 8c is formed, the notch portion 8a engaging with the hook portion 5a is provided above the anchor bracket portion 8. Because it is provided,
The positioning of the fixing bracket 5 below the belt retractor 3 can be reliably and easily performed.

In addition, after the positioning, the notch 8a and the hook 5a are securely engaged with each other to restrict the forward and backward movements. Position can be thoroughly ensured against the tightening torque acting on the

Since the upper portions of the anchor brackets 8 are bent toward the center of the vehicle, when the belt retractor 3 is inserted into the opening 4 of the pillar inner 2,
Interference between the lower part of the belt retractor 3 and the upper end of the anchor bracket 8 can be avoided.

On the other hand, at the position above the temporary fixing point 11a for temporarily fixing the upper end of the temporary fixing bracket 11 to the pillar inner 2, the second temporary fixing means 15 which engages with the temporary fixing bracket 11 and the pillar inner 2 mutually. Since the locating pin 15a and the locating hole 15b are set, positioning at the time of temporarily fixing the upper end of the temporary fixing bracket 11 can be easily performed, and the temporary fixing point 11a at the upper end and the second
To temporarily fix the fixing bracket 5 at the lower side of the belt retractor 3,
Can be easier.

Further, two rows of reinforcing beads 10, 1 in the upper and lower rows are provided on the portion of the pillar inner 2 where the bracket 11 for temporary fixing is provided.
0 are provided in the front-rear direction, so that these reinforcing beads 1
Bracket 1 for temporary fixing of pillar inner 2 by 0, 10
The panel rigidity of the disposition portion can be increased.

In particular, in this embodiment, the pillar inner 2
Since the bracket receiving portion 16 for accommodating the temporary fixing bracket 11 is recessed, the panel rigidity of the pillar inner 2 at the portion where the temporary fixing bracket 11 is provided can be increased.

Moreover, since the reinforcing beads 10 are provided in the front-rear direction from the bracket receiving portion 16 to the front and rear of the general surface of the pillar inner 2, the bracket receiving portion 16 for accommodating the temporary fixing bracket 11 of the pillar inner 2 is provided. Panel rigidity can be further increased.

In the above-described embodiment, the third cross member 1 is provided near the lower side of the belt retractor 3 in the vehicle width direction.
7 is provided so as to increase the rigidity of the vehicle body in the vehicle width direction. Therefore, the anchor bracket part is an example in which a separate anchor bracket 8 is erected over the side sill inner 1 and the pillar inner 2 which are the vehicle body frame members. Although shown, the anchor bracket may be press-formed on the pillar inner 2 as a matter of course.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a side view of the embodiment.

FIG. 3 is a perspective view showing a conventional structure.

FIG. 4 is an explanatory side view of a conventional structure.

[Explanation of symbols]

 3 Belt Retractor 3a Housing 5 Fixing Bracket 5a Hook 8 Anchor Bracket 8a Notch 8c Guide 8d Vertical Wall 10 Reinforcement Bead 11 Temporary Fixing Bracket 15 Second Temporary Fixing Means 16 Bracket Reception

Claims (9)

[Claims] A belt retractor for winding and rewinding a seat belt is provided in a recess provided in a vehicle body panel on a vehicle compartment side, and a fixing member is provided below a housing of the belt retractor so as to protrude downward. A structure in which a bracket is overlapped and connected to a side of the anchor bracket provided near the recess of the vehicle body panel facing the recess, and a hook is provided on the fixing bracket, and the upper side of the anchor bracket is provided. The belt retractor is housed in the recess of the vehicle body panel by engaging the hook portion with the hook portion, and a temporary fixing bracket is provided on the upper side of the housing of the belt retractor so as to protrude upward, and an upper end portion of the temporary fixing bracket is provided. Wherein the fixing bracket is connected to an anchor bracket near the upper edge of the concave portion of the vehicle body panel. Tri-tractor mounting structure. 2. A notch provided on the upper side of the anchor bracket for engaging with the hook.
The belt retractor mounting structure for an automobile according to the above. 3. A guide portion provided on an upper end portion of the anchor bracket portion, the guide portion engaging with the hook portion and slidingly guiding the belt retractor to a mounting position.
3. The belt retractor mounting structure for an automobile according to any one of 2. 4. A belt retractor mounting for an automobile according to claim 1, wherein a vertical wall portion protrudes upward from a rear end of said guide portion at an upper end portion of said anchor bracket portion. Construction. 5. The vehicle belt retractor mounting structure according to claim 1, wherein the upper portion of the anchor bracket is bent toward the center of the vehicle. 6. A second temporary fixing means which is engaged with the temporary fixing bracket and the vehicle body panel at a position above a temporary fixing point for temporarily fixing the upper end of the temporary fixing bracket to the vehicle body panel. The belt retractor mounting structure for an automobile according to any one of claims 1 to 5, wherein: 7. The belt retractor mounting structure for an automobile according to claim 1, wherein a reinforcing bead is provided in a front-rear direction at a portion of the vehicle body panel where the temporary fixing bracket is provided. 8. The vehicle belt retractor mounting structure according to claim 1, wherein a bracket receiving portion for housing the temporary fixing bracket is recessed in the vehicle body panel. 9. The vehicle belt retractor mounting structure according to claim 8, wherein a reinforcing bead is provided from the bracket receiving portion to the general surface of the vehicle body panel.