JPH017629Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a two-way seat, for example, a seat in an automobile, in which the front seat can be rotated to face the rear seat.

[Prior art]

There are various types of seats that have been conventionally used, but most of them have the configuration shown in FIG. The facing seat shown in FIG. On the other hand, it is composed of a rotary plate 102 that rotatably supports the seat 101. In other words, this seat 101 is fixed to a rotating plate 102 rotatably provided on a rotating table 100. In this way, with conventional two-person seats, in order to rotate the seat, a rotating platform or the like must be installed at the bottom of the seat.In other words, a mechanism for rotating the seat must be installed at the bottom of the seat. Compared to the case where the rotary mechanism itself is a rotary mechanism, it is significantly heavier, and the rotating mechanism itself has a large number of parts, resulting in an increase in cost.

Further, since such facing seats require a space at least equal to the rotation radius of the seat, they are often unsuitable for use in automobiles, etc., where space is particularly limited.

〔the purpose〕

The present invention was devised in view of the above-mentioned conventional circumstances, and an object of the present invention is to provide a two-person seat that has a simple structure, requires a small installation space, and is easy to operate.

〔composition〕

In order to achieve the above object, the present invention provides a backrest at one end and the other end of the seat frame, and when one of the seats is upright, the back of the other backrest serves as the seat. .

〔Example〕

The present invention will be explained below with reference to the illustrated embodiments.

FIG. 2 and FIG. 3 show perspective views of a facing seat 10 which is an embodiment of the present invention. Opposite seat 10
The seat frame 1 is fixed to the body of an automobile and serves as a frame constituting the seat, and the second backrest 2 and the second backrest are rotatably attached to the front and rear ends of the seat frame 1, respectively. 1 and a backrest portion 3. The first and second backrest portions 3 and 2 are coated with a cushion material on both the front and back surfaces, and are configured such that the front surface serves as a backrest and the back surface serves as a seat. For example, when the first backrest part 3 is erected and functions as a backrest, the opposing second backrest part 2 is laid down almost horizontally, and its back side functions as a seat part (see FIG. 2). Conversely, if the second backrest part 2 is erected and the first backrest part 3 is laid down almost horizontally (see Figure 3), the second
The backrest part 2 functions as a backrest, and the back surface of the first backrest part 3 functions as a seat part. When the second backrest portion 2 is erected, the orientation when the user is seated is opposite to that when the first backrest portion 3 is erected. In this way, the seat 10
If the second backrest part 2 is raised up from the state shown in Fig. 2, and then the first backrest part 3 is laid down almost horizontally, the state shown in Fig. 3 will be obtained; In order to do this, when the first backrest part 3 is raised, the second backrest part 2 automatically falls down to a substantially horizontal position. Below, the rotation mechanism of the second backrest part 2 and the first backrest part 3 will be explained in detail.

As can be seen from FIG. 2 or 3, the second backrest portion 2 and the first backrest portion 3 are rotatably attached to the ends of the seat frame 1, respectively. The first backrest part 3 is rotatably attached to the seat frame 1 via a reclining device 4, and the second backrest part 2 is rotatably fixed to a support plate 5 fixed to the seat frame 1. It is attached to the second arm 6. In the illustrated embodiment, only the first backrest 3 is equipped with a reclining device to function as a normal seat, but the second backrest 2 may also be equipped with a reclining device. Of course. As shown in FIG. 4, the second arm 6 is rotatably attached to a rotation shaft 51 fixed to the support plate 5, and a return spring 52 is provided between the rotation shaft 51 and the second arm 6. is attached, and the second arm 6 is always urged in the forward tilting direction, so that the second backrest portion 2 is tilted almost horizontally. A notch 61 is formed at the lower end of the second arm 6, and the tip of the stopper pin 7 is engaged with the notch 61. A shaft 71 is attached to the base end of the stopper pin 7, and this shaft 71
is an L-shaped bending member 72 that is fixed to the seat frame 1.
is inserted into. A compression spring 73 is attached between the stopper pin 7 and the bending member 72, so that the stopper pin 7 is brought into contact with the second arm 6. This stopper pin 7 is set to engage with the notch 61 when the second backrest portion 2 is erected and is in an optimal seating state. Therefore, when the second backrest part 2 is erected and the second backrest part 2 is in the optimal tilted state, the second
The stopper pin 7 is fitted into the notch 61 of the arm 6, the rotation of the second arm 6 is stopped, and the second backrest portion 2 is fixed. Note that a protrusion 53 is formed on the support plate 5, and when the notch 61 and the stopper pin 7 are fitted and the second arm 6 is fixed, the protrusion 53 and the side part of the second arm 6 abut, When a load is applied to the second backrest portion 2, the second arm 6
The protrusion 53 is configured to support the. Furthermore, one end of the release wire 8 is connected to the end of the shaft 71 attached to the stopper pin 7. The other end of the release wire 8 extends to a reclining device 4 that rotates the first backrest portion 3. The release wire 8 is attached to a mounting plate 82 after being inserted through a guide tube 81 fixed to the reclining device 4 . The mounting plate 82 constitutes a part of the reclining device 4, is attached to the first arm 41 supporting the first backrest portion 3, and is designed to rotate together with the first arm 41. Note that the reclining device 4 is similar to a normal reclining device, and has a lever 42.
By this operation, the first arm 41 can be fixed at a desired inclination angle. And the mounting plate 82 is
The release wire 8 is moved together with the first arm 41 and operates in accordance with the rotation of the first arm 41.
In other words, when the first arm 41 (first backrest portion 3) is tilted almost horizontally, the release wire 8
is pulled toward the second arm 6 by the action of a compression spring 73, and the stopper pin 7 is fitted into the notch 61. Next, lever 4 of reclining device 4
2 to raise the first backrest part 3 as shown in FIG. 61 is released, the second arm 6 is rotated by the action of the return spring 52, and the second backrest portion 2 falls to a substantially horizontal state (see FIG. 2).

〔effect〕

As explained above, the present invention includes a seat frame serving as the frame of the seat, first and second backrests rotatably attached to opposite ends of the seat frame, and a reclining device. A release wire is stretched between the first arm side of the first backrest part and the stopper pin side that engages and presses into a notch in the second backrest part provided with a return spring, and the first backrest part is erected. When the user is standing upright, the back surface of the second backrest portion constitutes the seat portion, and when the second backrest portion is upright, the back surface of the first backrest portion constitutes the seat portion. Therefore, it is extremely easy to change the seating direction of the seat. In addition, there is no need to provide a rotation mechanism unlike conventional seating seats, and the structure can be made simple, making it possible to reduce the number of parts, reduce the weight of the seat, and reduce costs.

Furthermore, this design does not change the seating direction by rotating the seat horizontally, but by rotating each backrest vertically, which takes up an extremely large amount of operating space. It is small in size and is particularly suitable for use in automobiles.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional seat, FIGS. 2 and 3 are perspective views of a seat showing an embodiment of the present invention, and FIG. 4 is an exploded perspective view showing the rotation mechanism of the seat. FIG. 5 is a simplified side view illustrating the operation of the rotation mechanism shown in FIG. 4. 1... Seat frame, 2... First backrest, 3...
First backrest portion, 4... Reclining device, 5
... Support plate, 6 ... Second arm, 7 ... Stopper pin, 8 ... Release wire, 41 ... First arm, 52 ... Return spring, 61 ... Notch.

Claims (1)

[Scope of Claim for Utility Model Registration] A seat frame that serves as the frame of the seat; a first backrest that is rotatably attached to one end of the seat frame and whose front and back surfaces are coated with cushion material; a reclining device provided on the first backrest portion side, which tilts the first backrest portion to a desired angle or tilts it in a substantially horizontal direction via a first arm by operating a lever; and the other end side of the seat frame. The second arm is rotatably supported on a support plate fixed to the second arm, and the elastic force of the return spring is constantly biased so as to tilt the second arm in a substantially horizontal direction toward the first backrest. , a second backrest portion whose front and back surfaces are coated with cushioning material so that a stopper pin engages and presses into a notch of the second arm to be in a locked state when the user stands up in an optimal seating state; and the first arm side and the stopper pin. and a release wire that is stretched between the side and the release wire that is pulled by the rotational movement of the first arm to release the locked state of the second arm, when the first backrest is upright. A seat for two people, characterized in that the back surface of the second backrest portion constitutes the seat portion, and when the second backrest portion is upright, the back surface of the first backrest portion constitutes the seat portion.