JPH0140774Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a seat belt guide for an automobile that is attached to the side of a seat bag and guides the webbing of a seat belt.

Conventional seat belt guides include those shown in FIGS. 1 to 3, for example.

In the figure, reference numeral 1 denotes a seat, and the seat 1 consists of a seat cushion 2 slidably attached to the floor, and a seat bag 3 attached to the seat cushion 2 so as to be tiltable. This seat 1 has seat cushion 2 and seat bag 3.
A reclining device (not shown) that rotatably connects the seat back 3 and tilts the seat back 3, and a cover 4 that covers this reclining device are attached.

On the other hand, the seat belt 6 includes a retractor 7 fixed to the floor on the door side of the seat 1, a webbing 8 pulled out from the retractor 7, a seat belt guide 9 through which the webbing 8 is inserted, and a connecting tongue through which the webbing 8 is inserted. 10 and a mounting tongue 11, a coupling buckle 13 that is attached to the roof rail 12 on the door side of the seat 1 and into which the coupling tongue 10 is inserted, and a coupling buckle 13 that is fixed to the floor on the indoor side of the seat 1 and into which the mounting tongue 11 is inserted. It is composed of a mounting buckle 14 to be inserted,
The free end of the webbing 8 through which the mounting tongue 11 has been inserted is fixed to a fixing metal fitting 15 fixed to a position near the retractor 7 on the floor.

The seat belt guide 9 is formed by bending a central portion 9a of a long and thin plate having an appropriate thickness into a U-shape, and providing mounting holes (not shown) at both ends 9b. When the seat belt guide 9 is fixed by the screw 15 passing through the mounting hole in the upper side of the door side of the seat bag 3, the central portion 9a of the seat belt guide 9 bent in a U-shape and the seat bag 3 A slit-shaped guide portion H through which the webbing 8 of the seat belt 6 is inserted in the vertical direction is formed between the seat belt and the side surface of the seat belt. This guide portion H is set to a size that allows the webbing 8 to be inserted easily. When using the seat belt 6, the attachment tongue 11 is inserted into the attachment buckle 14 fixed to the floor as shown by the broken line in FIG.

When the seat belt guide 9 is not in use and the coupling tongue 10 through which the webbing 8 is inserted is removed from the coupling buckle 13 attached to the roof rail 12, the coupling tongue 10 is placed on the floor. The connecting tongue 10 is always held at a position where it can be easily grasped by the occupant without dripping or being taken up by the retractor 7.
This belt guide 9 functions particularly effectively for the seat 1 that slides back and forth in the vehicle.

However, in such a conventional seat belt guide, when the seat belt guide 9 is attached to the upper side surface of the seat bag 3, the seat belt guide 9 is formed between the center portion 9a of the seat belt guide 9 and the side surface of the seat bag 3. The slit-shaped guide portion H is sized so that the webbing 8 can be easily inserted in the vertical direction, and is fixed to the seat back 3, so there is no risk of the seat back 3 tilting or the seat cushion 2 sliding back and forth of the vehicle. When the tension direction of the webbing 8 changes due to the movement of the seat belt guide 9, the webbing 8 is bent in the width direction of the webbing 8 and pulled to one side as shown in FIGS. 2 and 3, causing wrinkles. was.
When the webbing 8 is stretched in such a way that wrinkles are generated, the entire width of the webbing 8 does not receive a uniform force, and some parts receive stress concentration, which may reduce the tensile strength. Furthermore, once wrinkles occur, the retractor 7 may not be able to properly wind up the paper, and there is also a risk that smooth pulling and winding may not be possible.

Furthermore, if the webbing 8 is pulled out from the retractor 7 while being bent in the width direction, the webbing 8
There was a problem in that the side edges of the seatbelt guide 9 rubbed against the bent portion of the central portion 9a of the seatbelt guide 9 and were worn out, causing the webbing 8 to break.

This idea was created by focusing on these conventional problems, and the slit-shaped guide part through which the seatbelt webbing is inserted in the vertical direction is inserted into the front guide hole, rear guide hole, and side guide hole. It is formed into a substantially U-shape consisting of a corner guide hole and a corner guide hole that connects these guide holes.
To solve the above problem by forming the length of each side guide hole to be approximately equal to the width of the webbing, and by forming the slit width of the guide hole to be approximately equal to the thickness of the webbing. It is an object.

This invention will be explained below based on the drawings.

4 to 6 are diagrams showing a first embodiment of this invention. In the drawings, parts or members that are the same or equivalent to those of the conventional example are given the same reference numerals and redundant explanations will be omitted.

In the figure, reference numeral 20 denotes a seat belt guide, which is constructed by combining an inner guide member 21 and an outer guide member 22. The inner guide member 21 is formed by bending a central portion 21a of an elongated plate having an appropriate thickness into a substantially U-shape, and providing mounting holes (not shown) at both end portions 21b, respectively. The bending height of the central portion 21a relative to both ends 21b of the inner guide member 21 is slightly larger than the width of the webbing 8, and the length of the central portion 21a is slightly larger than the width of the webbing 8. There is.

On the other hand, the outer guide member 22 is made of the same material as the inner guide member 21, has the same dimensions between both end portions 22b, 22b, each having a mounting hole, and has a center portion 22a larger than the center portion 21a of the inner guide member 21. They are formed in similar shapes. That is, the bending height and length of the central portion 22a of the outer guide member 22 are larger than the bending height and length of the central portion 21a of the inner guide member 21. Therefore, the outer guide member 2 is attached to the inner guide member 21.
2, and both guide members 21 and 23
When the seat bag 3 is fixed to the upper side of the door side with the screw 25 passing through the mounting hole, the outer circumferential surface of the center portion 21a of the inner guide member 21 and the inner circumferential surface of the center portion 22a of the outer guide member 22 are connected. A substantially U-shaped slit-shaped guide portion 26 is formed between them. The guide portion 26 is located at the center portion 2 of the inner guide member 21.
The top outer surface of 1a and the center part 2 of the outer guide member 21
Side guide hole 2 formed between the top inner surfaces of 1a
6a and the front side outer surface of the central part 21a and the central part 2
2a, a front guide hole 26b formed between the front side inner surface of the center section 21a, a front guide hole section 26c formed between the front side outer surface of the center section 21a and the front side inner surface of the center section 22a, and the center section 21a. A rear guide hole 26c is formed between the outer surface of the rear side of the central part 21a and the inner surface of the rear side of the central part 22a, and the outer surface of the bent part of the central part 21a is formed between the outer surface of the bent part of the central part 21a and the inner surface of the bent part of the central part 22a. It is composed of a corner guide hole 26d that connects 26a, 26b, and 26c.

The slit width of the substantially U-shaped guide portion 26 is set to be the thickness of the webbing 8 plus approximately 1 mm. Motomo guide part 26
The slit width of the corner guide hole 26d is set to be the thickness of the webbing 8 plus about 1 mm, and the slit width of the other guide holes 26a, 26b, and 26c is set to be slightly wider than the slit width of the corner guide hole 26d. Of course, it is possible to make it larger.

In addition, the length of the side guide hole portion 26a of the guide portion 26, as well as the length of the front guide hole portion 26b and the rear guide hole portion 26c, are determined so that the webbing 8 can be positioned in these guide holes 26b and 26c. The width of the webbing 8 is set to be slightly larger than the width of the webbing 8.

The seat belt guide 20 having such a configuration is attached to the upper surface of the side of the seat bag 3 on the door side, and the webbing 8 is inserted through the guide hole 26 of the seat belt guide 20, so that the webbing 8 is inserted into the seat belt 6 as shown in FIG. It is in the installed state.

Next, the action will be explained.

FIG. 5 shows the seat buck 3 of the seat 1 when the occupant uses the seat belt 6 by inserting the coupling tongue 10 through which the webbing 8 is inserted into the coupling buckle 13 attached to the roof rail 12. If you tilt the vehicle toward the rear,
Since the webbing 8 inserted through the guide part 26 of the seat belt guide 20 is pulled by the retractor 7, the webbing 8 moves toward the front of the vehicle within the guide part 26 due to the pulling force to return to its original state. . At this time, since the slit width of the guide part 26 is set to approximately the plate thickness of the webbing 8, the webbing 8 in the normal state located in the side guide hole part 26a of the guide part 26 is inserted into the guide hole 26. It moves along the same line, changes direction by 90 degrees at the corner guide hole 26d, and moves to the front guide hole 26b. Thereafter, as shown in FIGS. 5 and 6, the webbing 8 does not bend in the width direction, but bends in the thickness direction to respond to the change in the direction of the tensile force. Therefore, the webbing 8 will not wrinkle, and the edges of the webbing 8 will not be rubbed and worn.

Further, when the seat 1 is moved to the front of the vehicle, the webbing 8 moves to the guide portion 26, contrary to the above.
The webbing 8, which is normally located in the side guide part 26a, changes direction 90 degrees at the corner guide hole part 26d and moves to the rear guide hole part 26c. It does not bend in the width direction, but bends in the thickness direction to accommodate changes in the tensile direction.

FIG. 7 shows a second embodiment of this invention.

The seat belt guide 30 of this embodiment is also constructed by combining an inner guide member 31 and an outer guide member 32, but the structure of the inner guide member 31 is different from the inner guide member 21 of the first embodiment.

The inner guide member 31 of this embodiment is the bent center portion 21a of the inner guide member 21 of the first embodiment.
The inner guide body 31a is composed of a tongue-shaped inner guide body 31a corresponding to the central part 2 of the first embodiment, and a substrate 31b integrally connected to the inner guide body 31a.
It has the same external shape as the substrate 31b.
is formed to have the same length as the length of the central portion 21a, and is provided with two mounting holes (not shown).

Also in this embodiment, the inner guide body 31a of the inner guide member 31 and the center portion 32a of the outer guide member 32
These two guide members 31, 3 are arranged so that they overlap each other.
2 is the screw 3 on the upper side of the door side of the seat bag 3.
5, a substantially U-shaped guide portion similar to the first embodiment is provided between the outer circumferential surface of the inner guide body 31a of the inner guide member 31 and the inner circumferential surface of the central portion 32a of the outer guide member 32. 36 is formed. Guide part 36
As in the first embodiment, there is a side guide hole 36a,
Front guide hole 36b and rear guide hole 36c
and a corner guide hole portion 36d that connects these guide hole portions 36a, 36b, and 36c.

The seat belt guide 30 having such a configuration is attached to the upper surface of the side of the seat bag 3 on the door side, as in the first embodiment, and the webbing 8 is inserted through the guide portion 36 of the seat belt guide 30, so that the seat belt 6 is in the attached state. becomes.

The operation of this embodiment is similar to that of the first embodiment, so the explanation will be omitted.

The seat belt guides 20 and 30 of the first and second embodiments described above both have an inner guide member 21,
31 and outer guide members 22, 32,
When these two guide members 21, 31, 22, 32 are combined and fixed to the seat bag 3, slit-shaped guide portions 26, 36 are formed.
Of course, the guide portions 22 and 32 may be integrally formed so as to have the guide portions 26 and 36 from the beginning.

Furthermore, in the first and second embodiments, a vehicle without a pillar between the front and rear doors in which the coupling buckle 13 into which the coupling tongue 10 is inserted is attached to the roof rail 12 will be described. However, it goes without saying that the seatbelt guide of this invention can also be implemented in vehicles having a center pillar.

As explained above, according to this idea,
Its structure consists of a slit-shaped guide section through which the webbing of the seat belt guide is inserted in the vertical direction, a front guide hole section, a rear guide hole section, a side guide hole section, and a corner guide hole section that connects these guide holes. The length of each of the front, rear, and side guide holes is approximately equal to the width of the webbing, and the slit width of the guide hole is set to the thickness of the webbing. Because they are formed to have approximately the same dimensions, when the pulling direction of the webbing changes when the occupant reclines or slides the seat, the webbing that is normally located in the side guide hole of the guide section will move to the corner guide hole. The webbing can change its direction at the end and move to the front guide hole or rear guide hole, bending not in the width direction but in the thickness direction to accommodate changes in the tensile direction, so the webbing will not wrinkle. The width of the webbing is always constant, and it is possible to prevent the edge of the webbing from rubbing against the seat belt guide and being worn out. Furthermore, since the width of the webbing does not change, stress is applied uniformly across the entire width, and sufficient seatbelt performance can be achieved without always reducing the tensile load resistance.

[Brief explanation of the drawing]

1 to 3 are conventional examples, and FIG. 1 is a perspective view showing a state in which a seatbelt is attached with the webbing guided by a seatbelt guide;
Figure 2 is a view similar to Figure 1 when the seat is tilted; Figure 3 is an enlarged partial perspective view showing the webbing being guided by the seat guide; Figures 4 to 6; The drawings show the first embodiment of this invention, in which Fig. 4 is the same as Fig. 1, Fig. 5 is the same as Fig. 2, Fig. 6 is the same as Fig. 3,
FIG. 7 shows a second embodiment of this invention and a diagram similar to FIG. 3. 3... Seat bag, 6... Seat belt, 8
... Webbing, 20, 30 ... Seat belt guide, 26, 36 ... Guide part, 26a, 36a
...Side guide hole part, 26b, 36b...Front guide hole part, 26c, 36c...Rear guide hole part,
26d, 36d...Corner guide hole portion.

Claims (1)

[Claim for Utility Model Registration] A seatbelt guide that is attached to the side of a seat bag and has a slit-shaped guide portion through which the webbing of the seatbelt is inserted in the vertical direction, the guide portion being inserted into a front guide hole and a rear guide hole. It is formed into a substantially U-shape consisting of a section, a side guide hole, and a corner guide section that connects these guide holes, and the length of each of the front, rear, and side guide holes is equal to the width of the webbing. A seat belt guide characterized in that the guide hole has a slit width approximately equal to the thickness of the eubing.