JP2017154591A - Rotary seat device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary seat device for a vehicle capable of eliminating a rotary mechanism by electrical drive.SOLUTION: A rotary seat device for a vehicle comprises a spring member 50 for rotating and energizing a seat 20 to a front state 20a side from a side state 20b. Therefore, it is possible to eliminate a mechanism for rotating the seat 20 in the side state 20b to the front state 20a side by electrical drive. As a result, (a) the seat 20 can be rotated regardless of presence/absence of power, (b) a motor or a gear is not required, a rotary mechanism 30 can be reduced in weight and production cost can be reduced, and (c) rotation speed of the seat 20 which does not depend on electrical drive can be acquired, so that, compared with an electrically driven rotary seat device, rotation speed of the seat 20 can be made fast.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicular rotating seat device.

  Patent Document 1 discloses a vehicle rotating seat device having a rotating mechanism that electrically rotates a seat from a state facing outward in the vehicle width direction to a state facing toward the front of the vehicle when a closing operation of the door of the vehicle is detected. doing.

However, the technique disclosed in Patent Document 1 has the following problems because the seat is electrically rotated.
(A) It does not work when there is no power (battery exhausted)
(B) Since the motor and the gear are included, the rotation mechanism is heavy and expensive.
(C) The opening / closing speed of the door and the rotational speed of the seat are fundamentally different, and the movement of electrically returning the seat is slow relative to the speed of closing the door.

JP 63-141842 A

  An object of the present invention is to provide a vehicular rotating seat device that can eliminate an electric rotating mechanism.

The present invention for achieving the above object is as follows.
(1) A vehicular rotating seat device having a rotating mechanism that rotates a seat at least between a front state facing the vehicle front side and a side state facing the vehicle width direction outer side,
A locking mechanism for holding the seat in the lateral state;
A spring member that rotationally biases the seat from the lateral state to the front state side;
A lock release mechanism that releases the holding of the lock mechanism by interfering with a door that closes a vehicle when the seat is in a lateral state;
A vehicular rotating seat device.

  According to the rotating seat device for a vehicle of the above (1), the mechanism has a spring member that urges the seat to rotate from the side state to the front state side, and thus the mechanism for electrically rotating the seat in the side state to the front state side. Can be abolished. As a result, (a) the sheet can be rotated regardless of the presence or absence of electric power. Moreover, (b) a motor and a gear are unnecessary, a rotation mechanism can be reduced in weight and cost can be reduced. Furthermore, (c) it is possible to obtain a rotational speed of the seat that is not electrically driven, and it is possible to increase the rotational speed of the seat as compared with the electrically powered case.

It is a side view in case the seat is in a front state of the rotating seat device for vehicles of the example of the present invention. 1 is a partial perspective view of a vehicle to which a vehicular rotating seat device according to an embodiment of the present invention is applied when a seat is in a side state. It is an operation | movement figure of the lower side structure of a seat cushion in the rotating seat apparatus for vehicles of this invention Example. (A) shows when the seat is in the forward state. (B) shows when the sheet is in the lateral state. FIG. 3 is an enlarged operation view of a lock mechanism and a lock release mechanism in the vehicle rotating seat device according to the embodiment of the present invention. (A) shows the state locked by the locking mechanism. (B) shows a state where the lock is released by the lock release mechanism. It is a schematic diagram of a rotation mechanism and a seat when the seat is in a forward state in the vehicle rotating seat device of the embodiment of the present invention. (A) shows a schematic side view. (B) shows a schematic diagram when viewed from the rear side of the vehicle.

  Hereinafter, a vehicle rotating seat device (hereinafter also simply referred to as a device) according to an embodiment of the present invention will be described with reference to the drawings. In the figure, UP indicates the vehicle upper side, FR indicates the vehicle front side, and OUT indicates the vehicle width direction outer side. In addition, hereinafter, unless otherwise specified, up and down and before and after indicate the up and down and front and rear of the vehicle, respectively.

  As shown in FIG. 1, the apparatus 10 according to the embodiment of the present invention rotates the seat 20 and rotates the seat 20 between a front state 20 a facing at least the front side and a side state 20 b facing outward in the vehicle width direction. As shown in FIG. 3, the mechanism 30, a lock mechanism 40 that holds the seat 20 in the side state 20 b, a spring member 50 that urges the seat 20 to rotate from the side state 20 b to the front state 20 a, and the seat 20 And a lock release mechanism 60 that releases the holding of the lock mechanism 40 by interfering with the door D that the vehicle closes when the vehicle is in the side state 20b. The apparatus 10 also includes a second lock mechanism 70 that holds the seat 20 in the front state 20a, and a second lock release mechanism 80 that releases the hold of the second lock mechanism 70.

  As shown in FIG. 1, the seat 20 is provided above the seat back 22, a seat cushion 21 on which an occupant is seated, a seat back 22 that is disposed at the rear end of the seat cushion 21 and is used as the back of the occupant. And a headrest 23 that supports the head of the occupant from the rear side.

  The rotation mechanism 30 includes a board lower 31, a board upper 32, and a turntable 33 disposed between the board lower 31 and the boat upper 32.

  The board lower 31 is supported by a slide rail 91 fixed to the vehicle body via a seat leg 90 so as to be slidable in the front-rear direction. As a result, the device 10 can slide in the front-rear direction along the slide rail 91. The board upper 32 is fixed to the seat cushion 21. The turntable 33 is fixed to the board upper 32 and is supported by the board lower 31 so as to be rotatable around the axis P. For this reason, when the turntable 33 rotates around the axis P with respect to the board lower 31, the board upper 32 and the seat 20 rotate around the axis P.

As shown in FIG. 5, the axis P of the turntable 33 is set so as to be inclined when viewed from the vehicle width direction and from the rear side, and is inclined to the upper side, the rear side, and the vehicle width direction outer side. It extends in the state. This is because the front end portion of the seat cushion 21 is lowered when the seat 20 is rotated from the front state 20a to the side state 20b, so that the passenger can easily get on and off at the side position 20b. Further, as shown in FIG. 3, the shaft core P is located on the outer side in the vehicle width direction of the seat cushion 21 when in the front state 20a, and on the rear side of the front and rear center. This is to increase the amount of protrusion of the seat 20 to the outside of the vehicle when rotating from the front state 20a to the side state 20b, and (i) to facilitate getting on and off the occupant at the side position 20b. Further, (ii) the seat 20 in the side state 20b is caused to interfere with the door D that is reliably closed and the lock release mechanism 60 is caused to function.

  The lock mechanism 40 is a mechanism for holding the seat 20 in the side state 20b, and as shown in FIG. 1, the striker 41 fixed to the board lower 31 and the striker 41 provided on the board upper 32 can be engaged and disengaged. Lock bar 42.

  As shown in FIG. 3, the lock bar 42 engages and disengages from the striker 41 when the seat 20 is in the side state 20b. When the lock bar 42 is engaged with the striker 41, the seat 20 is held (locked) in the side state 20 b by the lock mechanism 40, and when the lock bar 42 is detached from the striker 41, the seat 20 is moved by the lock mechanism 40. The holding in the side state 20b is released. For example, as shown in FIG. 4, the lock bar 42 is attached to the board upper 32 so as to be rotatable around the lock bar rotation axis P <b> 1, and is rotated in a direction to engage the striker 41 by a lock bar biasing spring 43. It is energized.

  As shown in FIG. 3, the spring member 50 is formed of, for example, a torsion spring. The spring member 50 rotates and urges the turntable 33 around the axis P with respect to the board lower 31 to urge the seat 20 from the side state 20b to the front state 20a.

  The lock release mechanism 60 is a mechanism that releases the holding of the lock mechanism 40 by interfering with the door D that the vehicle closes when the seat 20 is in the side state 20b. The door D is not a slide door but a hinge door. The lock release mechanism 60 includes a push lever 61 that is movably supported by the board upper 32.

  The push lever 61 is rod-shaped, and extends forward when the seat 20 is in the front state 20a, and extends outward in the vehicle width direction when the seat 20 is in the side state 20b. When the seat 20 is in the side state 20b, the push lever 61 can be brought into contact with the door trim D1 of the door D that is closed at one end 61a, and can be brought into contact with the lock bar 42 at the other end 61b. ing. When the push lever 61 is pushed by the door trim D1 of the door D that is closed, the lock bar 42 is pushed by the push lever 61 against the urging force of the lock bar urging spring 43 and rotates. Since the lock bar 42 rotates, the engagement between the lock bar 42 and the striker 41 is released (holding of the lock mechanism 40 is released). The door trim D1 may be provided with a convex portion D2 that protrudes toward the inside of the vehicle in order to ensure the push amount of the push lever 61.

  The second lock mechanism 70 is a mechanism for holding the seat 20 in the forward state 20a, and includes a second lock bar 71 that is provided on the board upper 32 and can be engaged with and detached from the striker 41. The second lock bar 71 can be engaged and disengaged from the striker 41 in the same manner as the lock bar 42 of the lock mechanism 40. This is to reduce the number of parts by using a common striker.

  The second lock bar 71 engages and disengages from the striker 41 when the seat 20 is in the forward state 20a. When the second lock bar 71 is engaged with the striker 41, the seat 20 is held (locked) in the front state 20 a by the second lock mechanism 70, and the second lock bar 71 is detached from the striker 41. The holding of the seat 20 in the forward state 20a by the second lock mechanism 70 is released. The configuration of the second lock bar 71 is the same as that of the lock bar 42 of the lock mechanism 40, and is attached to the board upper 32 so as to be rotatable about the rotation axis P2, and a second lock bar biasing spring (not shown). ) Is urged to rotate in a direction to engage with the striker 41.

The second lock release mechanism 80 is a mechanism for releasing the holding of the second lock mechanism 70 when the seat 20 is in the forward state 20a. The second unlocking mechanism 80 includes a second push lever 81 that is movably supported by the board upper 32.

  The second push lever 81 is rod-shaped and extends outward in the vehicle width direction when the seat 20 is in the front state 20a, and extends rearward when the seat 20 is in the side state 20b. The length of the second push lever 81 is shorter than the push lever 61 of the lock release mechanism 60, and does not interfere with the door D even if the seat 20 extends outward in the vehicle width direction when in the forward state 20a. It is said to be about. When the seat 20 is in the forward state 20a, the second push lever 81 has one end 81a positioned on the outer side in the vehicle width direction from the seat 20 so that a seated occupant or an assistant outside the vehicle can easily push the second push lever 81. The other end 81 b can be brought into contact with the second lock bar 71. When the second push lever 81 is pushed, the second push bar 81 pushes and rotates the second lock bar 71 against the urging force of a second lock bar urging spring (not shown). Since the second lock bar 71 rotates, the engagement between the second lock bar 71 and the striker 41 is released (the holding of the second lock mechanism 70 is released).

Here, the operation of the embodiment of the present invention will be described.
(A) During vehicle travel As shown in FIG. 3A, the seat 20 is in the forward state 20a. The second lock lever 71 is engaged with the striker 41, and the seat 20 is held in the front state 20 a by the second lock mechanism 70.

(B) When getting off (B-1) After opening the door D of the vehicle, the second push lever 81 is pressed to release the engagement between the second lock bar 71 and the striker 41 (second lock release mechanism). 80, the holding of the second lock mechanism 70 is released). Here, since the axis P of the turntable 33 is set to be slanted when viewed from the vehicle width direction and from the rear side, when the holding of the second lock mechanism 70 is released, the occupant The turntable 33 rotates about 90 degrees from the front state 20a to the side state 20b side while moving the tip of the seat cushion 21 downward. When the sheet 20 reaches the side state 20b, the lock bar 42 is engaged with the striker 41 and the sheet 20 is held in the side state 20b by the lock mechanism 40 as shown in FIG. Thereby, the passenger can get off.

(B-2) When the door D is closed after the passenger gets off, the door D pushes the push lever 61 to release the engagement between the lock bar 42 and the striker 41 (the lock release mechanism 60 releases the holding of the lock mechanism 40). ). At this time, since the occupant is getting off and not on the seat 20, when the holding of the lock mechanism 40 is released, the seat 20 is rotated to the front state 20a side by the biasing force of the spring member 50. When the seat 20 reaches the forward state 20a, as shown in FIG. 3A, the second lock lever 71 is engaged with the striker 41, and the second lock mechanism 70 holds the seat 20 in the forward state 20a. Is done.

(C) Opening the door D at the time of boarding and pushing the second push lever 81 to release the engagement between the second lock bar 71 and the striker 41 (the second lock release mechanism 80 causes the second lock mechanism 70 to be released). And the seat 20 is rotated from the front state 20a to the side state 20b by hand force. When the sheet 20 reaches the side state 20b, the lock bar 42 is engaged with the striker 41 and the sheet 20 is held in the side state 20b by the lock mechanism 40, as shown in FIG. After boarding in this state, the push lever 61 is pushed to release the engagement between the lock bar 42 and the striker 41 (release of the lock mechanism 40 from being held by the lock release mechanism 60), The seat 20 is rotated to the forward state 20a by the rotational force of the hand.
When the seat 20 reaches the forward state 20a, as shown in FIG. 3A, the second lock lever 71 is engaged with the striker 41, and the second lock mechanism 70 holds the seat 20 in the forward state 20a. Is done.

Next, effects of the embodiment of the present invention will be described.
Since the spring member 50 that urges the seat 20 to rotate from the side state 20b to the front state 20a is provided, a mechanism for electrically rotating the seat 20 in the side state 20b to the front state 20a after the passenger gets off can be eliminated. . As a result, (a) the sheet 20 can be rotated regardless of the presence or absence of electric power. Further, (b) no motor or gear is required, the rotating mechanism 30 can be reduced in weight, and the cost can be reduced. Furthermore, (c) the rotational speed of the seat 20 that is not electrically driven can be obtained, and the rotational speed of the seat 20 can be increased as compared with the electrically powered case.

  After the passenger gets off, closing the door D causes the door D to push the push lever 61 and release the engagement between the lock bar 42 and the striker 41 (the lock release mechanism 60 releases the holding of the lock mechanism 40). The seat 20 can be easily rotated from the side state 20b to the front state 20a by one operation of closing the door D. That is, the operation | work only for returning the seat | seat 20 to the front state 20a at the time of a passenger's alighting becomes unnecessary. Therefore, it is possible for the assistant to always accompany the disabled person when the disabled person gets off the vehicle.

  Since the rotation mechanism 30 can be reduced in weight and cost can be reduced, the hurdles of the spread of the vehicle having the rotation mechanism 30 can be lowered.

DESCRIPTION OF SYMBOLS 10 Vehicle rotation seat apparatus 20 Seat 20a Front state 20b Side state 21 Seat cushion 22 Seat back 23 Headrest 30 Rotation mechanism 31 Board lower 32 Board upper 33 Rotation base 40 Lock mechanism 41 Strike 42 Lock bar 43 Lock bar urging spring 50 Spring Member 60 Unlock mechanism 61 Push lever 70 Second lock mechanism 71 Second lock bar 80 Second unlock mechanism 81 Second push lever 90 Seat leg 91 Slide rail D Door D1 Door trim D2 Convex portion P

Claims (1)

A vehicular rotating seat device having a rotating mechanism for rotating a seat at least between a front state facing the vehicle front side and a side state facing the vehicle width direction outside,
A locking mechanism for holding the seat in the lateral state;
A spring member that rotationally biases the seat from the lateral state to the front state side;
A lock release mechanism that releases the holding of the lock mechanism by interfering with a door that closes a vehicle when the seat is in a lateral state;
A vehicular rotating seat device.

Images