JPS62995Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention mainly relates to an improvement of a seatbelt anchor device installed in a vehicle rear seat in which the seat cushion can be raised and lowered. The seatbelt can always be positioned on the seat side of the seat cushion, improving the operability of the seatbelt.In addition, the locking device at the rear lower part of the seat cushion and the seatbelt anchor device can be easily connected to each other. It is an object of the present invention to provide an anchor device which has a high mounting strength for a seat belt, has a good appearance, and has good operability, which can reduce weight and cost by using a single structure.

Conventional vehicle seats, especially rear seats, are of the type where the seat cushion can be raised between two positions: the normal reclining position and the forward standing position. When the seat is folded down, the seat belt attached to the seat is usually attached to the floor of the vehicle, so it has the disadvantage of becoming a drag on the seat cushion. Each time, the seatbelt must be lifted up or pulled out to the seat side through a hole drilled in the seat cushion, making the operation of the seatbelt extremely cumbersome.

Furthermore, as shown in Japanese Patent Application Laid-Open No. 55-4249, a shaft of a locking mechanism operated by a lever is rotatably provided on the rear outside of the seat cushion, and this shaft is provided with a hook that engages with a striker on the floor. There are also known seatbelts that are fixed to the shaft or seat cushion frame, but since the seatbelt is attached to the shaft or seat cushion frame of the locking mechanism, there is a drawback that the attachment strength of the seatbelt is low. Further, the locking mechanism is exposed on the rear seat side, giving a poor appearance, and the lever must be operated from the rear seat side, resulting in extremely poor operability, and the structure is complicated, resulting in increased weight and cost.

By adopting the configuration described in the claims for utility model registration, the present invention does not have the above-mentioned drawbacks, can reduce weight and cost, has a high attachment strength of the seat belt, and has a good appearance. A simple seat belt anchor device with a structure that is easy to operate has been obtained.

The configuration of the illustrated example will be explained below.

In FIG. 1, a seat cushion 1 is disposed on the vehicle floor 4 side via a rotary hinge 3 at the lower part of a front edge 2 so as to be able to be raised and lowered as shown by arrow A. A bracket 6 is fixed to the rear lower part 5 of the seat cushion frame of the seat cushion 1 so as to project slightly rearward, and a hook 8 is swingably attached to the bracket 6 by a swing shaft 7.

As shown in FIGS. 2 and 3, the illustrated hook 8 has a structure in which two hooks 8 ₁ and 8 ₂ are protruded in parallel from the lower ends of both sides of a U-shaped mounting base 9. A seatbelt 10 is attached to the hook protruding side with respect to the swing shaft 7, and a mounting shaft 11 is attached to the mounting base 9 at a portion symmetrical to the mounting portion of the seatbelt 10 with respect to the swing shaft 7. A belt 12 is attached.

In the illustrated example, the hooks 8 are two hooks 8 ₁ and 8 ₂
The seat belt 10 is fitted into the elongated hole 13 of the U-shaped mounting base 9, and the lifting belt 12 is attached by the mounting shaft 11, but the structure is limited to this. Rather, the structure of the hook and the structure for attaching the seat belt to the pull-up belt may be of any structure as long as the function described below can be achieved.

The above-mentioned seat belt 10 and pulling belt 12
As shown in FIG.
It is pulled out to the side.

A striker 16 for locking the hook 8 is fixed to the side of the vehicle floor 4 corresponding to the rear lower part 5 of the seat cushion frame of the seat cushion 1.
The hook 8 is connected to the striker 16 as shown in each figure.
is locked.

The aforementioned hook 8 has a mounting base 9 and a bracket 6.
A spring 17 is interposed between the striker 1 and the striker 1 at all times.
6 is provided with spring elasticity in the direction of engagement.

Reference numeral 18 in the figure is a bracket welded to the rear lower part 5 of the seat cushion frame, and the bracket 6 is fixed with bolts and nuts 19.

Since the anchor device according to the present invention has the above-described configuration, the lifting belt 12 is pulled up when the seat cushion 1 is in the normal collapsed position and the hook 8 is engaged with the striker 16 as shown in the figure. Then, the hook 8 is swung in the direction of arrow B against the elasticity of the spring 17, and is disengaged from the striker 16. Therefore, if the pulling by the pulling belt 12 progresses, the seat cushion 1
is guided into a standing position.

The seat belt 10, which remains attached to the attachment base 9 of the hook 8, exhibits the same behavior as the seat cushion 1, and is guided to the upright position together with the cushion 1.

Next, when the seat cushion 1 is laid down and pressed a little harder, the hook 8 is displaced along the striker 16 while deforming the spring 17, and finally comes into engagement with the striker 16.

In the configuration of the present invention, the input direction from the seatbelt 10, the engagement position between the hook 8 and the striker 16, and the fixation position of the striker 16 to the vehicle floor 4 can be arranged approximately on a straight line, and the seatbelt 10 The input from causes the hook 8 to rotate in the direction of biting into the striker 16, so that when the hook 8 is engaged with the striker 16,
If a collision occurs and a huge tension is applied to the seat belt 10 when the seat belt 10 is fastened by the occupant while the seat cushion 1 is locked to the vehicle floor 4 side, then The tension can be linearly received by the vehicle floor 4 via the hook 8, and the hook 8 can be given a rotational force in the direction of biting into the striker 16 by the tension, so that the seat belt 10 can be attached with stable strength. will be expressed.

The present invention has the structure and operation described above, and when the seat cushion performs the raising and lowering operation, the seatbelt is attached to the mounting base of the hook that behaves in the same manner as the cushion, so that it always The seat cushion is positioned on the seat side of the seat cushion and moves, eliminating any fear that the seat belt will become trapped under the seat cushion even if the seat cushion is displaced from the upright position to the reclining position. Moreover, since this operation can be performed on the front side of the seat cushion, the operability of the seat belt can be improved.

In addition, the device that locks the rear lower part of the seat cushion to the vehicle floor side and the seat belt anchor device are made into a single structure and are placed in the rear lower part of the seat cushion, so they are not exposed to the outside and the appearance is improved. It also has the effect of reducing weight and cost by simplifying the structure.

Furthermore, the hook is locked to a striker fixed to the vehicle floor, and the seatbelt is attached to the mounting base of the hook, so the force acting on the seatbelt is received by the vehicle floor, resulting in a powerful seat. This has the effect of maintaining the attachment strength of the belt.

In particular, according to the configuration of the present invention, it is possible to arrange the input direction from the seatbelt, the engagement position between the hook and the striker, and the fixation position between the striker and the vehicle floor on a substantially straight line, and moreover, the seatbelt Since the input from the seat belt acts as a force in the direction of causing the hook to bite into the striker, the input from the seat belt hardly acts on the seat cushion frame, and is applied directly to the vehicle floor, powerfully and reliably. This has an effect that can be accepted, and also has the effect that the attachment strength of the seat belt can be increased only by increasing the strength of the hook and the striker.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the implementation, with the seat part as a cross section, Fig. 2 is a vertical sectional view of the main part of the thing shown in Fig. 1, and Fig. 3 is only the main part of the thing shown in Fig. 1. FIG. 1... Seat cushion, 2... Front edge, 3...
Rotating hinge, 4... Vehicle floor, 5... Rear lower part, 7...
...Rotating axis, 8...Hook, 9...Mounting base, 10
... Seat belt, 12 ... Pulling belt, 5
...seat, 16...strike, 17...spring.

Claims (1)

[Scope of utility model registration request] A bracket is fixed to the rear lower part of the seat cushion frame, which is disposed on the vehicle floor so as to be freely raised and folded, via a rotating hinge at the lower part of the front edge, and a hook is attached to the bracket so as to be swingable. A seat belt is attached to the attachment base of the hook on the hook protruding side with respect to its swing axis, and a lifting belt is attached to a portion of the attachment base that is symmetrical to the seat belt attachment portion with respect to the swing axis. Both belts are pulled out onto the seat surface of the seat cushion, and a striker for engaging the hook is fixed to the vehicle floor corresponding to the rear lower part of the seat cushion frame. An anchor device for a vehicle seat belt, characterized in that the anchor device is always biased with spring elasticity in the matching direction.