JPS633538Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is based on the invention, in which a seat in a vehicle such as a passenger car or a freight passenger car, in particular a seat cushion, is erected approximately 90 degrees or reversed approximately 180 degrees using its front lower part as a fulcrum.
This invention relates to a rear seat in which the cargo space can be expanded by folding the seat back forward approximately horizontally.

In Fig. 1, 1 is a front seat, 2 is a rear seat, 3 is a body floor, and 4 is a luggage compartment floor.The seat cushion 2A of the rear seat 2 is attached to the body floor 3 by a shaft 5 at the front lower part of the seat cushion 2A. , it can be erected approximately 90 degrees as shown by the chain line 2A1, or it can be reversed approximately 180 degrees as shown by the chain line 2A2. The seat back 2B is attached to the front end of the luggage compartment floor 4 by a shaft 6 at its lower end, and can be reclined by operating the tilt angle adjustment mechanisms 7, 8. Furthermore, by releasing the tilt angle adjustment mechanisms 7 and 8, the camera can be tilted forward to a substantially horizontal position as shown by the chain line 2B1.

The above structure is substantially the same as that of a conventional vehicle seat, and requires a locking mechanism to hold the seat cushion 2A from falling over when the seat cushion 2A is erected approximately 90 degrees. Seat cushion approximately 180
When reversing the device, the locking mechanism must be released.

The object of the present invention is to obtain a vehicle seat in which the locking mechanism of the seat cushion can be easily released from the approximately 90-degree upright position. The lock mechanism release operator is located at the top when the seat cushion is erected.

To explain the structure of the embodiment shown in the drawings,
Front lower part of seat cushion 2A and body floor 3
are connected by a hinge arm 9 which connects a first arm 9A and a second arm 9B with a shaft 10 and can be bent and extended by approximately 90 degrees.

The first arm 9A is fixed to the side surface of the seat cushion 2A with a bolt 11, and the second arm 9B has a shaft 5 provided at its lower end that fits into a bearing hole of a bearing fitting 12 that stands on the upper surface of the body floor 3. It is rotatably mounted.

The first arm 9A and the second arm 9B normally keep the hinge arm 9 in a bent state, but when released, the hinge arm 9 is
A first locking mechanism is associated to permit 90 degree extension.

The first lock mechanism includes a hook 14 that is swingably attached to the first arm 9A about a shaft 13, and a second arm 9A.
It consists of a pin 15 on which the hook 14 provided at B engages, and is always biased toward engagement by the action of a torsion coil spring 16 supported by the shaft 13.

The hook 14 and the shaft 13 are integral, and a lever 17 is integrally provided on the shaft 13, and the lever 17 is connected to a lock release operator 18 (shown in the third figure) provided near the rear of the bottom surface of the seat cushion 2A. Connected with rod 19. The eccentric position of the hook 14 and the lock release operator 18 may be directly connected by a rod or wire.

A second lock mechanism is provided in relation to the second arm 9B and the body floor 3, which automatically engages and maintains the seat cushion 2A in its erected state when the seat cushion 2A is erected approximately 90 degrees.

The second lock mechanism is approximately U, which is swingably mounted on a shaft 20 at a position eccentric from the shaft 5 of the second arm 9B.
It consists of a letter-shaped hook 21 and a notch 22 formed at the rear edge of the bearing fitting 12 on the body floor 3, and the hook 21 is always attached to the body floor 3 by the action of a torsion coil spring (not shown) supported by the shaft 20. is biased towards a tendency towards

When the seat cushion 2A is in the horizontal or use position, the hinge arm 9
is bent, and the first locking mechanisms 14 and 15 engage to maintain the bent state. From this state, when the locking mechanism of the rear end of the seat cushion (not shown) relative to the body floor 3 is released and the rear part of the seat cushion 2A is lifted, the seat cushion 2A is centered around the first fulcrum shaft 5. The hook 21 constituting the second locking mechanism engages with the notch 22 when it is erected approximately 90 degrees as shown by the chain line 2A1.

At the position 2A1 where the seat cushion is upright as described above, the center of gravity of the cushion is at the first fulcrum axis 5.
Since it has been moved further forward, the second lock mechanism 21,
22 is maintained, and seat cushion 2
This prevents A1 from falling forward. The rearward rotation of the standing seat cushion 2A1 is caused by the third
Seat bag 2B1 laid down horizontally as shown in the figure
The upper end of the seat cushion 2A1 is stopped by coming into contact with the back surface of the seat cushion 2A1.

From the state of FIG. 3 where the seat cushion is standing, pull the operator 18 to remove the hook 14 forming the first locking mechanism from the pin 15, and push the seat cushion 2A1 forward.
is the second fulcrum shaft 1 located at a higher position than the first fulcrum shaft 5
0, and is reversed as shown by the chain line 2A2, so that its bottom surface, the back surface of the seat bag 2B, and the luggage compartment floor portion 4 are evenly aligned. In this inverted position, the protrusion 23 provided at the rear end of the seat cushion 2A is
Existing handbrake cover on body floor 3
It is positioned by hitting the upper surface of a rising portion 24 (shown in the first figure) of a seat belt retractor cover, center console box, or the like.

In the embodiment, the locking mechanisms 14 and 15 for maintaining the bent state of the first arm 9A and the second arm 9B of the bending/extending hinge arm 9 are released to release the seat cushion 2A.
However, in the case of a structure in which a hinge arm that does not bend or extend, that is, a seat cushion, is raised and reversed around a single fulcrum, the first part of the embodiment provided in relation to the hinge arm and the body floor. This is for releasing the lock mechanism corresponding to the two lock mechanisms 21 and 22, and for example, the hook of the lock mechanism and the release operator are connected with a rod wire or the like.

The vehicle seat of this invention has a seat cushion 2A.
A locking mechanism 14.15 or/and 21.22 for preventing the seat cushion 2A from falling from the upright position to the inverted position is provided on the hinge portion 9 constituting the fulcrum for standing up and reversing the seat cushion 2A. Since the child 18 is provided near the rear of the bottom surface of the seat cushion 2A, when the release operator 18 is operated, that is, when the standing seat cushion is tilted forward, the release operator 18 is disposed as shown in FIG. is always located at the top, and there is no need to bend over, making unlocking easy.

[Brief explanation of the drawing]

Figure 1 is a side view of the vehicle seat, Figure 2 is an enlarged side view of the seat cushion of the seat of the present invention, and Figure 3 is a side view of the vehicle seat.
The figure is a perspective view of the seat cushion in its upright state, viewed from the rear. 1 is a front seat, 2 is a rear seat, 2A is a seat cushion, 2B is a seat back, 3 is a body floor, 4 is a luggage compartment floor, 5 is a first fulcrum shaft, 6 is a seat back tilting shaft, 9 is a hinge arm, 9A is the first arm, 9B is the second arm, 10
12 is a second fulcrum shaft, 12 is a bearing fitting, 14.15 is a first lock mechanism, 18 is a lock release operator, 21.
22 is the second lock mechanism.

Claims (1)

[Scope of utility model registration request] In a vehicle seat in which the cargo space can be expanded by standing up or inverting the seat cushion using its front lower part as a fulcrum and folding the seat back forward, the seat cushion is attached to the hinge that forms the fulcrum. A vehicle seat is provided with a lock mechanism for preventing the seat from falling from an upright position to an inverted position, and a release operator for the lock mechanism is provided near the rear of the bottom surface of the seat cushion.