JP2012091764A - Lift-up device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lift-up device for adjusting the length of a link arm included in a lifting mechanism.SOLUTION: The lift-up device for moving a seat device available indoor and outdoor between the inside and outside of the vehicle includes: a floor fixing part arranged on a vehicle floor; a slide mechanism arranged on the floor fixing part to be movable back and forth; a rotating mechanism rotating the seat device carried by the slide mechanism; the lifting mechanism for moving the seat device rotated by the rotating mechanism to the inside and outside of the vehicle; and an outside slide mechanism which is attachable to and detachable from the seat device and is moved by the lifting mechanism. The lifting mechanism has a sectioned structure comprising a rear lifting mechanism connected to the rotating mechanism and a front lifting mechanism connected to the outside slide mechanism. The rear lifting mechanism and the front lifting mechanism are connected to each other by a link length adjusting mechanism.

Description

  The present invention relates to a lift-up device that moves a seat device that can be used in and out of a vehicle room to and from the vehicle room.

  2. Description of the Related Art Conventionally, as a lift-up device that moves a seat device that is mounted on a welfare vehicle and can be used inside and outside the vehicle interior to the vehicle interior and exterior, for example, a slide mechanism of a vehicle seat lifting mechanism described in Patent Document 1 Has been proposed.

  The slide mechanism (lift-up device) of the vehicle seat elevating mechanism includes a front / rear slide mechanism that slides the seat body of the vehicle seat in the vehicle front-rear direction, and the seat body facing the boarding position facing the vehicle front and the door opening side. A rotating mechanism that rotates horizontally between the horizontal position, a lifting mechanism that lowers the seat body to a height close to the road surface while moving the seat body to the outside of the vehicle compartment via the door opening, and a seat body that is independent of the lifting mechanism. The second slide mechanism is configured to move horizontally. Here, the elevating mechanism includes a first slide mechanism installed on the upper surface of the rotation base of the rotation mechanism, and a pair of left and right four-bar linkage mechanisms that move in conjunction with the first slide mechanism. This four-bar linkage mechanism is a mechanism for connecting an elevating base included in the first slide mechanism and the second slide mechanism, and has an inner link arm and an outer link arm, and includes a side portion of the first slide mechanism and an elevating base. A side portion is provided so as to be rotatable up and down via a support shaft.

JP 2009-090771 A

  In the lift-up device described above, the length of the link arm provided in the four-bar linkage mechanism of the lifting mechanism is determined depending on the position (height) of the seat body and the second slide mechanism that is lowered and lowered to the outside of the vehicle compartment. Yes. This link arm is generally set longer in the front-rear direction of the vehicle than the front-rear slide mechanism provided in the vehicle compartment, and extends in the front-rear direction of the vehicle when the seat device is moved into the vehicle compartment (stored state). The lift-up device may be increased in size. Temporarily, the lift-up device in which the length of the link arm is set to be shorter in the front-rear direction of the vehicle than the front-rear slide mechanism does not require a space in the front-rear direction of the vehicle with the seat device retracted. When moving outside the room, the seat apparatus may not be lowered to a position close to the road surface.

  The present invention is for solving the above-described problem, and an object thereof is to provide a lift-up device capable of adjusting the length of a link arm provided in an elevating mechanism.

A lift-up device that moves a seat device that can be used in and out of a vehicle to or from the interior of the vehicle, the floor fixing portion disposed on the vehicle floor, and the slide mechanism that can be moved back and forth on the floor fixing portion. A rotating mechanism that rotates the seat device carried by the slide mechanism, an elevating mechanism that moves the seat device rotated by the rotating mechanism into and out of the vehicle interior, and an outer slide mechanism that can be detached from the seat device and moved by the elevating mechanism The elevating mechanism is divided into a rear elevating mechanism connected to the rotating mechanism and a front elevating mechanism connected to the outer slide mechanism, and the rear elevating mechanism and the front elevating mechanism are linked to each other. It is a technical feature that it is connected by an adjusting mechanism.

  According to the lift-up device of the first aspect, since it is possible to adjust the length of the link arm provided in the elevating mechanism, it is possible to reduce the space in the vehicle interior with respect to the front-rear direction of the vehicle. Outside the room, the seat device can be moved to an appropriate position (height).

It is a figure which shows the disassembled perspective view of the lift-up apparatus of this invention. It is a figure which shows the raising / lowering mechanism and link length adjustment mechanism of a lift-up apparatus. It is a figure which shows that the length of a link arm is adjusted outside a vehicle compartment. It is a figure which shows that the length of a link arm is adjusted in a vehicle interior.

Embodiments of the present invention will be described below with reference to the drawings.
The lift-up device 10 of the present invention has a structure that can be connected to and disconnected from a seat device 20 that can be used inside and outside the vehicle interior, and is a device that moves the seat device 20 between the vehicle interior and the exterior of the vehicle interior. It is provided in the vehicle compartment. As shown in FIG. 1, the lift-up device 10 includes a floor fixing portion 11 disposed in a vehicle floor and a seat device that is connected to the floor fixing portion 11 so as to be movable back and forth with respect to the traveling direction of the vehicle. A sliding mechanism 12 that moves back and forth, a rotating mechanism 13 that rotates the seat device 20 carried by the sliding mechanism 12 between a position facing the traveling direction of the vehicle and a position facing the door opening, and a seat facing the door opening A lifting mechanism 14 that moves the apparatus 20 between the vehicle interior and the exterior of the vehicle interior, and an outer slide mechanism 18 that has a structure that can be connected to and disconnected from the seat apparatus 20 by being moved by the lifting mechanism 14. .

  The floor fixing unit 11 fixes the lift-up device 10 to the vehicle floor, and lays a pair of left and right rail members 11a on the vehicle floor surface substantially parallel to the door opening. The rail member 11a has a concave cross section, and is provided with a screw shaft 11b and a nut member 11c that enable a slide mechanism 12 to be described later to move inside the concave shape, and feet that are fixed to the vehicle floor at both ends. 11d. The lift-up device 10 is fixed to the vehicle floor by fastening the foot 11d and the vehicle floor with a bolt or the like.

  The slide mechanism 12 is a mechanism that moves the seat device 20 in the front-rear direction with respect to the traveling direction of the vehicle. This slide base 12a has a slide motor 12b for driving a screw shaft 11b and a nut member 11c inside the rail member 11a of the floor fixing portion 11 on the back side (floor fixing portion side), and a rotation mechanism 13 to be described later on the surface. A rotating disk 12c that rotates and a rotating motor 12d that drives the rotating disk 12c are provided.

  The rotating mechanism 13 is a mechanism that rotates the seat device 20 between a position facing the traveling direction of the vehicle and a position facing the door opening, and a rotating substrate 13a is provided so as to be stacked on the rotating disk 12c of the slide mechanism 12. . The rotating board 13a includes a lifting motor 13b that operates a lifting mechanism 14 to be described later, a lifting rotary shaft 13c that rotates when the lifting motor 13b is driven, and a guide roller 13d that supports the lifting mechanism 14 that performs a lifting operation. Prepare.

  The elevating mechanism 14 is a mechanism for moving the seat device 20 from the vehicle interior to the vehicle interior or from the vehicle interior to the vehicle interior, and as shown in FIG. The structure is divided into a front elevating mechanism 16 connected to a slide mechanism, and the rear elevating mechanism 15 and the front elevating mechanism 16 are connected by a link length adjusting mechanism 17.

  The rear elevating mechanism 15 includes a connecting member 15a connected to the rotating mechanism 13, a rear bracket 15b for fixing the connecting member 15a, and a rear base portion 15c formed in a block shape provided at both ends of the rear bracket 15b. The rear base 15c rotatably holds one end of the link arm 15d. Here, the link arm 15d is formed such that one end thereof is held by the rear base portion 15c and the other end can be engaged with a link arm 16d included in the front lifting mechanism 16 described later. In the present embodiment, the end of the link arm 15d that is not held by the rear base portion 15c will be described in the case where it is formed so as to be able to mesh with a link arm 16d included in the front lifting mechanism 16 described later. Alternatively, the insertion hole may be formed and the other may be inserted into the insertion hole. Furthermore, the left and right link arms 15d include a holding bracket 15e so as to cross both the link arms 15d.

  The front lifting mechanism 16 includes a connecting member 16a that is connected to an outer slide mechanism that will be described later, a front bracket 16b that fixes the connecting member 16a, and a front base portion 16c that is formed in a block shape provided at both ends of the front bracket 16b. The front base portion 16c rotatably holds one end of the link arm 16d in the same manner as the link arm 15d of the rear base portion 15c included in the rear elevating mechanism 15. Here, one end of the link arm 16 d is held by the front base portion 16 c and the other end meshes with the link arm 15 d having the rear lifting mechanism 15. Furthermore, the left and right link arms 16d include a movable bracket 16e so as to cross both the link arms 16d.

  The link length adjusting mechanism 17 is configured such that the link arm 15d provided in the rear elevating mechanism 15 and the link arm 16d provided in the front elevating mechanism 16 slide with each other, and the distance between the rear elevating mechanism 15 and the front elevating mechanism 16 (link length). 2), a nut member 17a included in the movable bracket 16e included in the front lifting mechanism 16, an adjustment motor 17b included in the holding bracket 15e of the rear lifting mechanism 16, and an adjustment motor 17b, as shown in FIG. It is comprised from the screw shaft 17c which transmits motive power to the nut member 17a.

  The outer slide mechanism 18 has a structure that can be connected to and disconnected from the seat device 20, and the seat support base 18 a that supports the seat device 20 and the seat support base 18 a that has been moved out of the vehicle compartment by the elevating mechanism 14 in the vehicle compartment exterior direction. Alternatively, an outer slide rotation shaft 18b that moves in the vehicle interior direction and an outer slide motor 18c that rotates the outer slide rotation shaft 18b are provided. Here, the outer slide rotating shaft 18b is a rotating shaft that rotates when the outer slide motor 18c is driven, and can be connected to the connecting member 16a included in the front bracket 16b of the front lifting mechanism 14 so as to rotate. The connecting member 16a is moved to move the outer slide mechanism 18 in the vehicle interior direction and the vehicle interior direction.

Next, a procedure for the lift-up device 10 of the present invention to move the seat device 20 in the vehicle compartment to the outside of the vehicle compartment will be described.
The lift-up device 10 moves the seat device 20 to the rotation mechanism 13 by driving a slide motor 12b of the slide mechanism 12 by operating a remote controller or a switch provided on the vehicle body side or the seat device 20. The seat device 20 that has moved to the rotation mechanism 13 is rotated from a position facing the traveling direction of the vehicle to a position facing the door opening by driving a rotation motor 12d included in the slide mechanism 12. The seat device 20 facing the door opening by the rotation mechanism 13 is moved up and down by moving the connecting member 15a provided in the rear bracket b of the rear lifting mechanism 15 to the outside of the vehicle room by driving the lifting motor included in the rotation mechanism 13. While moving the mechanism 14 to the vehicle exterior direction, the outer slide mechanism 18 is lowered.

  The outer slide mechanism 18 that moves out of the vehicle compartment and descends, when the elevating mechanism 14 finishes the elevating operation, and then the adjustment motor 17b of the link length adjusting mechanism 17 is driven to lower the seat device 20 to an appropriate height. At the same time, the outer slide motor 18c is rotated to further move the seat device 20 toward the outside of the vehicle compartment. Here, the link length adjusting mechanism 17 rotates the screw shaft 17 c by driving the adjusting motor 17 b provided in the rear elevating mechanism 15, and the nut member 17 a provided in the movable bracket 16 e of the front elevating mechanism 16 from the rear elevating mechanism 15. By moving in the direction of moving away, the length of the link arm is adjusted to be long, and the outer slide mechanism 18 is lowered. (Figure 3)

  The lift-up device 10 is separated from the seat device 20 after the outer slide mechanism 18 is lowered to an appropriate position where it can be separated from the seat device 20.

  Next, a description will be given of a procedure in which the lift-up device 10 of the present invention performs a connecting operation with the seat device 20 used outside the vehicle compartment and moves into the vehicle compartment.

  The seat device 20 approaches the lift-up device 10 from the rear as viewed from the seated occupant, and the seat support base 18a of the lift-up device 10 is inserted into a seat holder provided below the seat device 20, whereby the lift-up device 10 Concatenate with

  The lift-up device 10, which has been connected to the seat device 20, moves the nut member 17 a included in the front elevating mechanism 16 in the direction of the adjusting motor 17 b of the rear elevating mechanism 15 by driving the adjusting motor 17 b of the link length adjusting mechanism 17. The link length L is shortened, and the outer slide mechanism 18 is moved upward (in the vehicle compartment direction). (Figure 3)

  In a state in which the link length adjusting mechanism 17 brings the front lifting mechanism 16 closest to the rear lifting mechanism 15, the lift-up device 10 drives the lifting motor 13 b included in the rotating mechanism 13 to drive the lifting mechanism 16, which is the lifting mechanism 14. Further, the seat device 20 is moved into the vehicle compartment by moving the rear elevating mechanism 15 toward the vehicle compartment. The seat device 20 that has moved into the vehicle compartment is rotated from a position facing the door opening by the rotation mechanism 13 to a position facing the traveling direction of the vehicle, and is slid to a predetermined position by the slide mechanism 12.

  The seat device 20 slid to a predetermined position is adjusted by the link length adjusting mechanism 17 so that the length of the link arm is adjusted to be substantially the same as that of the slide mechanism 12. Compared to 14, the front and rear space of the vehicle can be reduced.

  In this embodiment, the seat device 20 is lowered to some extent by the elevating mechanism 14 and then the length L of the link arm is adjusted by the link length adjusting mechanism 17. However, the present invention is not limited to this, and the link arm is not limited thereto. The link length adjustment mechanism 17 may be driven to change the length of the link arm when the seat device 20 is brought to a predetermined position. (Fig. 4)

DESCRIPTION OF SYMBOLS 10 Lift up apparatus 11 Floor fixing | fixed part 12 Slide mechanism 13 Rotating mechanism 14 Elevating mechanism 15 Back raising / lowering mechanism 15a Connecting member 15b Rear bracket 15c Back base 15d Link arm 15e Holding bracket 16 Front raising / lowering mechanism 16a Connecting member 16b Front bracket 16c Front base 16d Link arm 16e Movable bracket 17 Link length adjustment mechanism 17a Nut member 17b Adjustment motor 17c Screw shaft 18 Outer slide mechanism 20 Seat device

Claims (1)

A lift-up device that moves a seat device that can be used inside and outside the vehicle interior between the vehicle interior and the vehicle interior,
A floor fixing portion arranged on the vehicle floor;
A slide mechanism capable of moving back and forth on the floor fixing part;
A rotation mechanism for rotating the sheet device carried by the slide mechanism;
An elevating mechanism for moving the seat device rotated by the rotating mechanism into and out of the vehicle interior;
An outer slide mechanism that further moves the seat device carried outside the vehicle compartment by the elevating mechanism in the vehicle side direction;
The elevating mechanism includes a rear elevating mechanism coupled to the rotating mechanism;
A forward elevating mechanism coupled to the outer slide mechanism,
The rear elevating mechanism has link arms at both ends of a rear bracket having a connecting member connected to the rotating mechanism,
The forward lifting mechanism has a link arm formed slidably on the link arm,
A lift-up device that connects the rear lifting mechanism and the front lifting mechanism with a link length adjusting mechanism.

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