JPS6175028A - Folding type seat - Google Patents

Abstract

PURPOSE:To fix and retain a folding type seat surely at the accommodated condition by providing a lock hook hitching on a hitching unit of a lock plate and locking inverse rotation of a seat cushion. CONSTITUTION:A folding type seat pack and a seat cushion 5 are made to be bed condition, and the seat cushion 5 is laterally stood and rotated to a supporting base 4 and accommodated, and fixed by an automatic lock device 9. The automatic lock device 8 consists of a lock plate 12 and a lock hook 14. The lock plate 12 is fixed on the supporting base 4 and provided with a hitching unit 16, and the lock hook 14 is provided with a claw unit 15 for hitching on the hitching unit 16 of the lock plate 12 on the tip of the hook and rotatably fit to a bracket 10 of the seat cushion 5, and energized so that the claw unit 15 is contacted to the outer periphery of the lock plate 12 by a torsion spring 19.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a foldable seat for an automobile, and more particularly to a foldable seat that can be stored along a wall of a vehicle interior by fully reclining the seat back and rotating the seat cushion in a horizontal direction. , which is equipped with an automatic locking device when stored.

[Prior art and its problems]

BACKGROUND ART In multipurpose vehicles such as passenger wagons and jeeps, a folding seat that can be folded and stored when not needed is sometimes provided as a rear seat instead of a fixed seat. For example, as shown in Japanese Patent Publication No. 56-36089, such a folding seat has a structure in which the entire rear seat is constructed such that the seat hack can be folded down with respect to the seat cushion, and the entire rear seat is placed on the rear luggage floor floor. There are things that are meant to be stored. In such a configuration, the seats are placed folded on the floor of the luggage compartment, so there is a problem that the space that can be effectively used as a luggage compartment becomes narrower. As the size of the bag became smaller, it became impossible to store tall items in the luggage compartment. Additionally, stowable seats are often used in which the seat back is folded onto the seat cushion and then rotated upside down to face the back of the front seat seat pack; in this case, the front-to-back length of the cargo area is Reduced by the thickness of the cushion and seat hack. Therefore, the following foldable seat has been proposed as a foldable seat that does not reduce the vertical height and longitudinal length of the luggage compartment in the folded state and can suppress the reduction in the horizontal width of the luggage compartment as much as possible. ing. In other words, a seat cushion is supported so as to be rotatable in the lateral direction with respect to a support base fixed near the interior wall of the luggage compartment, and a seat hack is supported through a hinge in the rear part of the seat cushion so that it can be fully reclined. This is a foldable seat that can be stored along the inside wall of the luggage compartment by raising and rotating the seat cushion laterally with the seat cushion fully reclined. With a folding seat like this, the seat cushion and seat back are connected in series and are stored along the interior wall of the vehicle.
The vertical and front-to-back lengths of the cargo compartment are not reduced, and the amount of bulge from the cargo compartment walls is reduced, ensuring a spacious cargo compartment floor similar to that without the folding seat. This allows effective use of space. By the way, the above-mentioned method for holding the folding seat in the stored state is to provide a hand with a locking device on a part of the rear part of the seat back, and a coat hook on the side wall of the passenger compartment, so that the seat can be held in the folded state. , a method is adopted in which the band's clasp is hooked onto a coat hook. However, with this holding method, only a portion of the seat back, which can freely rotate laterally, is suspended from the side wall of the vehicle body, so the seat may wobble due to vibrations of the vehicle body, etc. Not only does this cause a problem of noise generation, but also when the seat is folded up so that a passenger can sit on it, and when it is folded again and stored, the above-mentioned hand locking device must be coated each time. There is a problem in that it is very troublesome to handle as it requires the operation of hooking it on and removing it from the hook. The present invention was devised under the above-mentioned circumstances, and when the above-mentioned foldable seat is stored along the interior wall of the vehicle, the folding seat is kept in the upright state when the seat is erected. The locking device automatically operates to simplify the storage operation of the folding seat, and to ensure that the folding seat is securely held in the stored state.

[Means to solve the problem]

In order to solve the above-mentioned problem, the present invention includes a seat cushion that is supported so as to be rotatable in the lateral direction with respect to a support base, and a seat cushion that is supported through a hinge in the rear part of the seat cushion so that it can be fully reclined. In a foldable seat that has a seat hack and can be stored along the interior wall of a vehicle by rotating the seat cushion laterally with the seat back fully reclined, it is fixed to the support base. and a lock plate having an engaging part, and a bracket extended from the seat cushion so as to be able to rotate while being elastically biased in one direction, and when the seat cushion stands up and rotates, the engaging part of the lock plate automatically engages. An automatic locking device is provided, which includes a locking hook that engages with the seat cushion to prevent reverse rotation of the seat cushion.

[Actions and effects of the present invention]

The self-FJJ four-way device for folding seats according to the present invention automatically operates to prevent the seat cushion from rotating in the opposite direction when the seat cushion is rotated along the interior wall of the vehicle. The positional relationship between the members that constitute the automatic locking device, that is, the lock plate on the support base side that has an engaging part, and the lock plate on the seat cushion side that can be engaged with the engaging part of this lock plate is determined when the seat cushion is used horizontally. While rotating from the seat cushion to the almost vertical stowed state, the claw of the lock hook slides around the circumference of the lock plate other than the engagement part, and when the seat cushion is in the nearly vertical stowed state, the claw of the lock hook slides around the lock plate. The part is arranged so as to automatically engage with the opening and the engaging part of the cube plate by the rotating biasing force of the spring. Therefore, simply by fully reclining the seat back so that it is continuous with the seat cushion and rotating the notebook cushion until it stands up along the interior wall of the vehicle, the lock plate and lock hook will automatically engage. , the reverse rotation of the seat cushion is reliably prevented. In this way, in the foldable seat according to the present invention,
Unlike conventional seats of this kind, there is no need for the troublesome operation of manually supporting the seat against the wall of the vehicle interior when storing it, and the operability when storing it is extremely improved. In addition, when a part of the seat back was held to the interior wall with a band as in the past, the folding seat could swing, but with the present invention, the base of the seat cushion is locked to the support heir. Because of this, even if the vehicle vibrates, the folding seat alone will not sway and a stable fixed storage state can be achieved.

[Explanation of Examples]

Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view showing an embodiment of the present invention. This type of folding seat 1 includes, for example, a wheel house 3 formed on a floor panel 2, which is provided with a pair of front and rear support bases 4, and a seat cushion 5 that can be raised and rotated in the lateral direction on the side thereof. Basically, the seat hack 7 is supported on the rear part of the seat lock 5 via a hinge 6 so that it can be fully reclined. A movable leg 8 is provided on the back surface of the seat cushion 5 to stand up when the seat cushion 5 is used as a seat and to support the weight of the seat or an occupant on the floor. As shown in FIG. 1, this folding seat 1 is constructed with the seat cushion 5 fully reclined and the seat cushion 5 and the seat hack 7 forming a series of heads, with the seat cushion 5 placed against the support base 4. By standing up and rotating laterally, it is stored along the interior wall of the vehicle. In the present invention, as a fixing means for storing the folding seat 1, when the seat cushion 5 is rotated until it stands up, an automatic locking device that automatically operates to fix the folding seat in the stored state is provided. There are 9. The specific structures of the folding seat 1 and the automatic opening device 9 will be described below. As shown in FIGS. 2 and 3, a pin 11 extending in the front-rear direction is fixed to a bracket 10 integrally formed on the side of the seat cushion 5, and is inserted into a support hole bored in the support head 4. Thus, the seat cushion 5 is supported so as to be rotatable in the lateral direction with respect to the support base 4. In the illustrated example, a torsion spring 13 is inserted into the pin 11, and one end of the torsion spring 13 is connected to the support heath 4, and the other end is connected to the pin 11.
By locking the pins 11 to the ends of the pins, the pins 11 are elastically biased against the support heir 4 in the clockwise direction in FIG. Therefore, the bracket 10 and the seat cushion 5 are always elastically biased in the upright direction, and the advantage is that the force required to upright and rotate the seat cushion 5 is very small. The spring 13 does not need to be provided when the folding force is small.Furthermore, the automatic locking device 9 includes a lock plate 12 fixed to the support base 4 and having a hooking portion 16;
Lock hook 1 rotatably provided on bracket 10
4. The lock hook 14 has a
A claw portion 15 is formed to engage with a hook portion 16 of the lock plate 12. Torsion spring 1 with one end fixed to the bracket 10 and the other end fixed to the lock hook 14
By inserting the pin 9 into the pin 12a that supports the lock plate 12, the opening/took hook 14 has its claw portion 15,
so as to elastically abut against the outer periphery of the lock plate 12.
That is, it is always elastically biased in the clockwise direction in FIG. Therefore, when the seat cushion 5 rotates to a predetermined position, the claw portion 15 of the lock hook 14 that has been sliding around the circumference of the lock plate 12 automatically engages the engaging portion 16 of the lock plate 12. Reverse rotation of the seat cushion 5 is prevented. Next, in order to release the automatic locking device 9, the locking hook 14 may be rotated counterclockwise against the clockwise biasing force. The release lever and the lock hook 14 may be connected using an operating cable. In this example, the lock hook 14
One end of the inner wire 18 of the cable 17 is fixed to a locking part 20 provided at the end opposite to the claw part 15, and the movable leg 8 is attached using a release lever 2 provided at the part.
The other end of the inner wire 18 is fixed to 2. In addition, the release lever 22 is designed so that it cannot be operated unless the movable leg 8 is erected to prevent an accident in which the seat cushion 5 is placed in a horizontal state without the movable leg 8 being erected and the supporting portion of the seat cushion 5 is damaged. are doing. That is, as shown in FIG. 2 and FIG.
A bracket 21 having a support shaft 2La is fixed to the back surface of the cushion 5, preferably to the seat cushion frame 5a, and the base end of the movable leg 8 is supported on the support shaft 21a so as to be rotatable up and down. release lever 22
The cable 1 is connected to a part of this release lever 22.
The other end of the inner wire 18 of No. 7 is fixed. A prismatic stopper part 24 is provided at the base end of the movable knob 8, and the release lever 22 interferes with the stopper part 24 when the movable leg 8 is folded, and vice versa. A stopper piece 23 that does not interfere with the stopper part 24 when the movable leg 8 is erected is integrally provided. As a result, when the movable leg 8 is in the folded state, the stopper piece 23 interferes with the stopper part 24 and the release lever 22
It is now impossible to move. On the other hand, when the movable leg 8 is erected, the stopper piece 23 moves to the stopper part 24.
2, rotate the release lever 22 to pull the inner wire 18 of the cable 17, and rotate the lock hook 14 counterclockwise in FIG. You will be able to cancel the engagement.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view showing the folding seat of the present invention, Fig. 2 is a view taken in the direction of the ■ direction in Fig. 1, Fig. 3 is an exploded perspective view of an automatic locking device for the folding seat, and Fig. 4 is an exploded perspective view of the folding seat automatic locking device. It is an exploded perspective view of the release device of an automatic locking device.

Claims (1)

[Claims] (1) It has a seat cushion that is supported so as to be able to stand up and rotate laterally with respect to a support base, and a seat back that is supported so that it can be fully reclined via a hinge at the rear part of the seat cushion. A foldable seat that can be stored along the interior wall of a vehicle by standing up and rotating the seat cushion laterally in a fully reclined state, the lock plate being fixed to the support base and having a hooking part; , is provided on a bracket extending from the seat cushion so that it can rotate while being elastically biased in one direction, and when the seat cushion stands up and rotates, it automatically engages with the engaging portion of the lock plate to rotate the seat cushion in the opposite direction. A folding seat characterized by being equipped with an automatic locking device consisting of a locking hook that prevents the seat from moving.