JPH078303Y2 - Auxiliary seat for vehicle - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a folding auxiliary seat which is attached to a side portion of a main seat.

[Conventional technology]

Conventionally, folding auxiliary seats for vehicles have been
As disclosed in Japanese Patent Publication No. 57-194344, it is attached to the side of the main seat via a link, and when necessary, the seat body becomes horizontal by tilting it toward the aisle side, and a seat that can be seated is configured. There is something like this. With respect to the horizontal support of the seat body, a stopper / position adjusting device is attached, and the seat body is provided so that the seat body is positioned horizontally by abutting the link that rotates with the device.

[Problems to be solved by the device]

However, in the above-mentioned conventional auxiliary seat, vibration is likely to occur due to the collision between the link that rotates when the seat is pulled out and the stopper, and this vibration is transmitted to the main seat side and is provided on the armrest of the main seat. There was the inconvenience that the contents of the cups placed on these cups or small items might fall onto the floor because the cups standing on the table or the table on the back of the backrest swayed. Therefore, it has been an issue to prevent vibration from being transmitted to the main seat side when the auxiliary seat is pulled out and stored.

[Means for Solving the Problems]

The present invention has been made in consideration of the above-mentioned conventional problems. A short link pivotally supported on a side portion of a main seat is pivotally attached to front and rear surface ends of a seat body, and A long link pivotally supported on the main seat side above the short link is pivotally attached to the front and rear surfaces closer to the center of the seat than the surface end so that the seat abuts the end on the main seat side. In the auxiliary seat rotatably supported from the horizontal state to the upright state along the side portion of the main seat, at least one of the main seat side pivotal support portions of the short link is rotated downward from the predetermined inclined position of the short link. An auxiliary seat for a vehicle is provided, which is provided with a cushioning member for applying a pressing force to the short link in a direction opposite to the rotation direction at the time of movement and at the time of turning upward from the predetermined tilt position, The problem of is solved.

[Action]

In the present invention, a force is applied to the short link that rotates when the seat body is pulled out and becomes nearly horizontal, and a force is applied in a direction opposite to the rotation direction of the short link to suppress the momentum at the time of rotation. When the seat body is returned to the main seat side, similarly, a force is applied in the direction opposite to the rotation direction of the short link to suppress the momentum at the time of rotation.

〔Example〕

Next, the present invention will be described in detail based on an embodiment shown in FIGS. 1 to 6.

In the figure, reference numeral 1 denotes an auxiliary seat that can be pulled out to the side of the passage between the main seats in the bus compartment. The auxiliary seat 1 is, as shown in FIG. It comprises a folding backrest 3 connected to the seat body 2 and a link body 4 connecting the seat body 2 to the storage portion B on the side of the main seat A.

The link body 4 is rotatably supported on the lower portion of the storage portion B in a vertically rotatable manner, and above the short link 5 is rotatably supported by the storage portion B in a vertically rotatable manner. And an end portion of the short link 5 is pivotally attached to an end portion 20 of the seat body 2, and an end portion of the long link 6 of the seat body 2 is shorter than the short link 5 of the seat body 2. It is pivotally attached to the front and rear surface parts 21 that are close to the center side. With this link body 4, as shown in FIGS. 2 to 4, the auxiliary seat 1 (the backrest is folded)
Is provided so as to be rotatable between a state of being stored in the storage portion B and a horizontal state of being on the passage, and in a state in which the short link 5 and the long link 6 are inclined downward. The short link 5 and the long link 6 are rotated upward by supporting the seat body 2 in the upright state and pulling out the seat body 2 in a tilted manner. The end portion 20 abuts on the storage portion B by being guided by the rotation of 5, and the short link 5 and the long link 6 support the seat body 2 in a horizontal state. When the auxiliary seat in the horizontal state is to be stored, the side end of the seat body 2 may be pulled up and rotated to the storage portion B side, and the long link 6 once rotates upward and then rotates downward. It moves and the short link 5 is at the end
20 The seat body 2 is raised by rotating so as to pull it down.

In the link body 4, a buffer member 7 is provided on a pivotal support portion of the short link 5 on the main seat side. The buffer member 7
As shown in FIGS. 5 and 6, a torsion coil spring 9 is wound around a pivot 8 that supports the short link 5, and the torsion coil spring 9 is provided once on the short link 5. Convex portion b which is locked in the hole 50 and has the other end protruding from the side surface of the storage portion B.
Is locked to. The buffer member 7 is set so that no drag is generated when the short link 5 is tilted upward at a predetermined angle, that is, when the seat body 2 is lifted and lowered, the short link 5 is rotated upward. When it moves and starts to approach the storage section B side, a reaction force is applied from the buffer member 7 to the short link 5 in the opposite direction of the rotation, and the momentum of the rotating short link 5 is killed, and the end 20 is stored in the storage section. It is designed to gently contact B. Also, when the seat body 2 is pulled up and stored, when the short link 5 starts to approach the lowest point, the buffer member 7 applies a resistance force to the short link 5 in the opposite direction to kill the momentum and the storage can be performed quietly. Has been planned.

In the above-mentioned embodiment, the buffer member is composed of the torsion coil spring wound around the pivot for stopping the short link, but the present invention is not limited to this, and for example, a viscous coupling type may be adopted. It suffices that the reaction force is applied in the opposite direction with respect to the vertical rotation from the predetermined tilt position.

[Effect of device]

As described above, according to the present invention, the short links pivotally supported on the side portions of the main seat are pivotally attached to the front and rear end portions of the seat body, and the seat center is moved from the front and rear end portions of the seat body. The long link pivotally supported on the main seat side above the short link is pivotally attached to the front and rear surface parts on the side, and the seat body moves from the horizontal state in which the end portion abuts against the main seat side to the main seat side. In an auxiliary seat rotatably supported in an upright state along the section, at least one of the main seat side pivotal support portions of the short link is rotated downward from a predetermined tilt position of the short link and the predetermined tilt position. Since a cushioning member is provided to apply a pressing force to the short link in the direction opposite to the direction of rotation when the seat is pulled out from above, when the auxiliary seat is pulled out or stowed, the short direction is opposite to the rotating short link. The drag force is applied to the short link to slow the movement of the short link, and the auxiliary seat can be handled quietly and vibrates. Etc. does not occur, in which exhibits the excellent effect in practical use.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of an auxiliary seat according to the present invention, FIGS. 2 to 4 show movements of a link body in the embodiment, and FIG. Explanatory diagram showing
FIG. 3 is an explanatory view showing a seat body when tilted, FIG. 4 is an explanatory view showing a seat body in a horizontal state, FIG. 5 is an explanatory view showing a side portion of a main part of one embodiment, and FIG. It is explanatory drawing which shows the principal part of one Example from the front side. 1 ... Auxiliary seat 2 ... Seat 4 ... Link 5 ... Short link 6 ... Long link 7 ... Buffer member

Claims (1)

[Scope of utility model registration request] 1. A short link pivotally supported on a side portion of a main seat is pivotally attached to front and rear end portions of a seat body, and the front and rear surface portions closer to the center of the seat body than the front and rear end portions of the seat body are The long link, which is pivotally supported on the side of the main seat above the short link, is pivotally attached to rotate the seat from the horizontal state where the end portion abuts the side of the main seat to the upright state along the side of the main seat. In the movably supported auxiliary seat, at least one of the main seat side pivotal support portions of the short link is rotated downward from a predetermined inclined position of the short link and is rotated upward from the predetermined inclined position. An auxiliary seat for a vehicle, which is provided with a cushioning member for applying a pressing force to the short link in a direction opposite to a rotating direction at times.