JPH0211465B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a restraint device for a seat of a vehicle or the like.

2. Description of the Related Art Automobiles are equipped with seatbelt restraint devices to ensure the safety of occupants in the event of a collision or other impact. This restraint device allows the occupant to adjust the seat position while being restrained, and if the anchor at the free end of the seatbelt is placed on the door or car wall, the retractor can be placed on the seat side, that is, inside the cushion frame. It is necessary to install the However, when installing the retractor inside the cushion frame, if it is placed on the underside of the seat or on the side facing the seatbelt input part, the retractor may come into contact with the underside of the seat pad that forms the seat. , the seatbelt crosses over and makes contact, giving a feeling of discomfort when seated, and also interfering with the seatbelt's operation.In addition, input to the seat frame due to the tension of the seatbelt occurs on both the left and right sides, causing pressure. A crushing force will be applied. Therefore, the cushion frame must have sufficient strength to withstand the load, and each part of the frame must be reinforced by forming thick materials, which has drawbacks such as the weight of the cushion frame itself becoming large. . Furthermore, during the assembly process, the seat belt must be led out through the insertion hole formed on the side of the cushion frame.
In particular, it is difficult to insert the large buckle attached to the free end of the seat belt, and the process is time-consuming. Therefore, the present invention has been made in view of the above points, and has the purpose of arranging a retractor within the cushion frame without affecting the riding comfort, etc., and without interfering with the operation of the seat belt. This makes it possible to reduce the weight of the device itself.

That is, in the present invention, a retractor and a belt guide are arranged on one side of the cushion frame, and a notch is formed on one side of the frame, so that the seat belt that is folded back from above at the belt guide is attached to one side of the frame. The retractor is configured to be wound around the retractor along the outer surface of the section through the notch.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 indicates the entire vehicle seat, 2 is a seat back, and 3 is a seat cushion. This seat cushion 3 has a seat adjuster 4 disposed on its lower surface and a retractor on one side. 5. A restraint device consisting of a seat belt 6 and a belt guide 7 is installed.

In this restraint device, the seat belt 6 is attached to a belt guide 7 attached to the rear side of one side of the seat cushion 3.
The guide roller 1 is inserted into the retractor 5 disposed inside the front end of the cushion frame 11 through the insertion hole 9 formed in the folded skin 8 between the skin 8 and one side of the cushion frame.
It is configured to be wound up through 0.

This restraint device will be explained in detail with reference to FIGS. 2 to 5.

The retractor 5 is attached via a casing 13 to the inner side of the front end of one side 11a of the cushion frame 11, that is, to the front assembly portion a of the seat adjuster 4 with one movable side rail 12a. A guide roller 10 is pivotally supported. In addition, one side of the frame 11a has a notch 14 located at a position corresponding to the attachment part of the retractor 5, that is, a position facing the front assembly part a with the rail, or located slightly forward and extending from the top surface to the side surface.
A retractor casing 13 is arranged corresponding to the inside of this notch 14, and a guide roller 10 is formed.
faces the notch 14, and in this state, the retractor casing 13 is fixed between both sides of the notch 14 in a bridging manner. This retractor casing 13 has nuts 15 and 1 on its lower and side surfaces corresponding to the rail assembly section and both sides of the frame cutout section 14, respectively.
6 and 17 are fixed, and the lower nut 15 is also used for assembling the front part of the rail, and the movable side rail 12a,
One side of the frame 11a and the retractor casing 13 are fastened together by one bolt 18, and nuts 16 and 17 on the sides screw bolts 19 and 20 inserted from the outside into through holes on both sides of the notch 14. Then, tighten the retractor casing 13 to fix the retractor casing 13 to the cushion frame 11.

When fixing the retractor casing 13 to the cushion frame 11 in this way, the seat belt 6 only needs to be inserted into the notch 14 from the open part on the top side. It can also be easily derived from the shape of the buckle 6a.

On the other hand, the belt guide 7 is formed of a ring part 7a through which the seat belt 6 is inserted and a support part 7b.
It is located on the outer surface of the rear end of the rail near the rail rear mounting portion b and is pivoted by a bolt 21 so as to be swingable in the vertical direction.

Further, raised edges 22a and 22b, which are slightly higher than the thickness of the seat belt 6, are formed on the upper and lower edges of the outer surface of the frame one side 11a, extending to the vicinity of the belt guide 7. The folded seat belt 6 is guided in the direction of the retractor 5 along the outer surface of the one side edge 11a of the frame without being affected by the skin 8 and the seat pad 23. As described above, the seat belt 6 along the outer surface of one side of the frame 11a is turned inward by the guide roller 10, passes through the notch 14, and is wound around the retractor 5.

In the figure, 11b is the other side of the cushion frame 11, 12a' is the other movable side rail, 12
b and 12b' are both fixed side rails, 24 is a bracket on the free hinge side of the seat back, 25 is a nut for assembling the reclining (not shown), and a' and b' are the front and rear parts of the other movable side rail. This is the assembly part.

As described above, according to the present invention, the retractor is disposed inside the front end of the cushion frame, a cutout is formed on one side of the cushion frame from the top surface to the side surface corresponding to the retractor placement portion, and A raised edge is formed on the upper and lower edges of the side,
Since the seat belt is directly led out from this notch and is configured to run along the outer surface of one side of the frame between the upper and lower raised edges, it is extremely easy to assemble the restraint device to the cushion frame. The upper and lower raised edges on one side of the cushion frame, where the seatbelt input is applied, increase rigidity and withstand the excessive load from the seatbelt, further improving the restraint of the occupant. Since the belt is moved along the upper and lower ridges on the outer surface of the cushion frame, it can be smoothly inserted into and removed from the retractor without being twisted or caught on the seat pad or skin, making it easy to attach and detach the belt to the seated person at all times. can. Moreover, as mentioned above, only one side of the cushion frame can support the seat belt input, and the input load can be handled integrally with the slide rail, so the cushion frame can be strengthened on one side. often,
Therefore, the cushion frame as a whole has great practical effects, such as being able to be made lighter.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an example of a vehicle seat equipped with the device of the present invention, Fig. 2 is a perspective view of a cushion frame equipped with the device of the present invention, and Fig. 3 is a partially cutaway view of a portion of Fig. 2. FIG. 4 is a plan view of essential parts of the cushion frame, and FIG. 5 is a cross-sectional view of the center of FIG. 4. In the figure, 1 is a seat, 3 is a seat cushion, 4 is a seat adjuster, 5 is a retractor, 6 is a seat belt, 7 is a belt guide, 10 is a guide roller,
11 is a cushion frame, 11a is one side of the frame, 12a is one movable side rail, 13 is a retractor casing, and 14 is a notch.

Claims (1)

[Scope of Claims] 1. A retractor is disposed inside the front end of the cushion frame, and a notch is formed on one side of the cushion frame from the top surface to the side surface corresponding to the portion where the retractor is disposed. A belt guide is attached to the outer side of the rear end, and a raised edge is formed on the upper and lower edges of the outer surface of one side of the frame from the notch to the mounting area of the belt guide, so that the seat belt can be attached from above. A restraining device for a seat of a vehicle or the like, characterized in that the belt is folded back by the belt guide, is wound along the outer surface of one side of the frame, between the upper and lower raised edges, and is wound around a retractor through the notch.