JPH0321301Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a folding seat.To explain in more detail, the seat cushion is pivoted forward with the front legs as the rotation center so that it can stand upside down, and the rear legs This invention relates to a folding seat that is locked to the floor of a vehicle when the legs are opened.

[Conventional technology]

Conventionally, as shown in FIG. 6, the rear seat 1 of a one-box car such as a wagon is inverted forward with the front legs 3 as the center of rotation, and the rear legs 4 are folded to expand the rear space of the rear seat 1. is being done. Further, a seat belt 5 is fixed to the rear end of the seat cushion 2 for the safety of the occupants of the rear seat 1. In the case of a configuration in which the belt anchor 6 of the seat belt 5 is fixed to the rear end of the seat cushion 2 and the rear leg 4 of the rear seat 1 is locked to the floor 8 of the vehicle etc. by the locking mechanism 7, the seat belt 5 is subjected to an impact load. If this is applied, there is a risk that a load will be applied to the seat cushion 2 from the belt anchor 6, and an excessive load will be applied to the seat cushion 2 and the rotating hinge 4a of the rear leg 4 at the rear end of the seat cushion 2. was.

[Problem that the invention attempts to solve]

When the belt anchor 6 of the seat belt 5 is directly fixed to the seat cushion 2, the cushion frame must be strengthened to sufficiently withstand the impact load applied to the seat cushion 2. When reinforcing the strength by fixing a link rod etc. to the seat cushion 2,
However, the rotation operation cannot be performed quickly and reliably. For this reason, the present applicant has previously proposed a seat belt 5 that is fixed to the rear leg 4 and the lower central portion of the rear leg 4 is locked by a locking mechanism 7 provided between the floor 8 of the vehicle, etc., as shown in FIG. Seat device with belt (Utility Application No. 59-95021 (Utility Application No. 1987-
10262)). This seat device 1' is configured so that when an impact load is applied to the seat belt 5, the load is released from the rear legs 4 to the floor 8. When the seatbelt 5 is pulled rearward due to the movement of the vehicle and the rear legs are returned to the seated position, the seatbelt 5 must be pulled out to make it usable. was.

The purpose of this invention is to improve the safety of the rear seat, expand the rear space when the rear seat is folded, and eliminate the risk of the seat belt moving back and forth when the seat cushion rotates. To provide a foldable seat that does not require a seat cushion to have more strength than necessary, has a simple mechanism, and has excellent operability.

[Means for solving problems]

The present invention was developed in view of the above-mentioned problems, and is designed so that the seat cushion is pivoted forward with the front legs as the center of rotation so that it can stand upside down, and the rear legs are locked to the floor of the vehicle when the legs are spread apart. In this foldable seat, a seatbelt anchor having a hook portion is fixed to the rear end of the seat cushion, and the hook portion engages with an engaging portion formed on the rear leg side when the rear legs are opened. It is characterized in that the locking state between the hook part and the engaging part is released when the rear legs are in a folded state.

[Effect]

According to the present invention, the seatbelt anchor is fixed to the seat cushion, and the hook portion of the seatbelt anchor engages with the engaging portion formed on the rear leg side when the rear legs are in an open state, that is, in a normal seating state. Since it is locked, when an impact load is applied to the seat belt, this impact load is transmitted from the hook part of the seat belt anchor to the rear leg side, and the rear leg and floor are in a locked state. This allows the impact load to be released to the floor.

〔Example〕

An embodiment of the foldable seat according to the present invention will be described in detail below with reference to the drawings.

1 to 4 schematically show an embodiment of the present invention, in which the foldable seat 11 includes a seat cushion 12 and a seat cushion 12.
The front leg 14 of the seat cushion 12 is pivotally supported to the floor 15 via a pivot 16, and the seat cushion 12 is pivotably supported near the rear end of the front leg 14. It is attached to the front so that it can be turned upside down with the side as the center of rotation.

An upper end 17a of a rear leg 17 is foldably supported on the bottom side of the rear end of the seat cushion 12 by a pivot pin 19, and this rear leg 17 is locked by a locking mechanism 21 formed between it and the floor 15. It is made to be done. This lock mechanism 21 includes an inverted U-shaped lock part 23 fixed to a recess 22 formed in the floor 15, and a lock pawl 2 rotatably supported on the lower end 17b of the rear leg 17 by a pivot shaft 24.
5, the lock pawl 25 is provided with a spring 26
is biased in the direction of engagement with the lock portion 23. One end of the pivot shaft 24 of the lock pawl 25 protrudes to the side of the rear leg 17, and is connected to an operating lever 27. Therefore, the operating lever 27 is connected to the spring 2.
By rotating the lock pawl 25 against the biasing force 6, the locked state between the lock pawl 25 and the lock portion 23 can be released.

A pair of seat belt anchors 31 each having a hook portion 32 are fixed to the rear end of the seat cushion 12.
Seatbelt 35 to this seatbelt anchor 31
One half of each is fixed. The illustration of the other half of the seat belt 35 is omitted. Further, a pair of engaging portions 33 are formed on the rear legs 17, and a hook portion 32 of the seat belt anchor 31 is attached to the engaging portions 33.
is designed to be locked.

As shown in FIG. 2, the hook portion 32 of the seat belt anchor 31 is engaged with the engaging portion 33 of the rear leg 17 when the rear leg 17 is in the open state, and as shown in FIG. 17 is in the folded state, the engaging portion 33 is rotated forward, so that the locked state with the hook portion 32 is released.

The above is the configuration of an embodiment of the folding seat according to the present invention. According to this configuration, an impact load is applied to the seat belt 35 in a normal sitting state in which the rear legs 17 are in the open position. When the hook part 32 of the seat belt anchor 31 is pressed, the engaging part 3 of the rear leg 17 is
Since the rear legs 17 and the floor 15 are locked by the locking mechanism 21, the impact load is transmitted to the floor 15 through the impact load.

Next, the locking mechanism 21 between the floor 15 and the rear legs 17 is released, and the rear legs 17 are folded.
By inverting the seat cushion 12 forward with the pivot 16 of the front leg 14 as the center of rotation, the rear space of the rear seat can be expanded.

[Effects of the invention] According to the invention, the seatbelt can be easily used when the rear seat is seated, resulting in extremely high safety, and when an impact load is applied to the seatbelt, the seat cushion Because the load is not concentrated only on the The belt can always be kept in the specified position, and the simple structure allows the hook part of the seatbelt anchor to be released from the engagement part of the rear leg by folding the rear leg, greatly improving operability. It is possible to obtain foldable seats that can be improved.

[Brief explanation of drawings]

1 to 4 schematically show an embodiment of the foldable seat according to the present invention, in which FIG. 1 is a perspective view of the seat with the seat back omitted, and FIGS. 2 and 3 are rear views, respectively. FIG. 4 is an exploded perspective view of the locking mechanism between the rear legs and the floor; FIG. 5 is a perspective view of the seat previously proposed by the applicant; FIG. 6 is a perspective view of a conventional seat. In the figure, 11...Foldable seat, 12...Seat cushion, 13...Seat bag, 14...
Front leg, 15...floor, 16...pivotal section, 17...
... Rear leg, 19 ... Pivot pin, 21 ... Lock mechanism, 22 ... Recess, 23 ... Lock portion, 25 ...
Lock claw, 31...Seat belt anchor, 32...
...hook part, 33...engaging part, 35...seat belt.

Claims (1)

[Scope of utility model registration request] In a folding seat, the seat cushion is pivotally supported forward with the front leg side as a center of rotation so as to be able to stand upside down, and the rear leg is locked to the floor of the vehicle in a spread state, the rear end of the seat cushion. A seatbelt anchor having a hook portion is fixed to the seat belt, and the hook portion is engaged with an engaging portion formed on the rear leg side when the rear legs are in an open state, and the hook portion and the engaging portion are engaged with each other when the rear legs are in a folded state. A folding seat characterized in that the locked state of the seat is released.