JP2000168417A - Arm rest of lift up seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a change of a wheelchair user by improving an arm rest provided on a lift up seat for a vehicle. SOLUTION: In a lift up seat S movable to the inside and the outside of a car room, side plates 20 along side surfaces of a seat cushion 10 and a seat back 11 of a seat body 1 are formed on right and left side edges of a seat holder 2 on which the seat body 1 is placed. Rear ends of horizontal portions 21 of the side plates 20 along side surfaces of the seat cushion 11 and front ends of an arm rest 6 are connected by a link arm 7 and the arm rest 6 is vertically movable. A lock device 8 for locking a rear end of the arm rest 6 is provided on a vertical portion 22 of the side plates 20 along the side surfaces of the seat back 11 to horizontally support the arm rest 6. The arm rest 6 with a released lock is downwardly moved and accommodated in a position being approximately the same plane as the seat cushion 10. A gap between a seat S and a wheelchair C laid at a side of the seat S is buried with the arm rest 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armrest attached to a lift-up seat of a vehicle.

[0002]

2. Description of the Related Art As shown in FIG. 2, recently, as a seat installed in a wagon-type vehicle or the like, the seat can be moved from the vehicle interior to the exterior of the vehicle, so that occupants such as the elderly and the physically handicapped can easily. Lift-up seat S for getting on and off the vehicle
There is. As shown in FIGS. 2 and 3, the lift-up sheet S includes a sheet body 1, a sheet holder 2 on which the sheet body 1 is placed, and an elevating device 3 for moving the sheet holder 2 up and down. The elevating device 3 is mounted via a rotating mechanism 5 on a moving body 41 movable in the vehicle front-rear direction of a slide device 4 installed on the vehicle floor F.

The seat holder 2 has a seat cushion 10 and a seat back 11 of the seat body 1 on left and right side edges.
Is provided with a side plate 20 along the outer side surface of the main body. The side plate 20 is covered with a cover member 23. The seat holder 2 is provided with vertical portions 22 of the left and right side plates 20.
Is connected to the tips of a pair of left and right first and second link arms 31 and 32 of the lifting device 3 and is supported by the lifting device 3.

[0004] First and second link arms 31 and 32
Is rotatable back and forth by a motor incorporated in the lifting device 3, and the lifting device 3 includes first and second link arms 3.
The link arms 31 and 32 are moved forward from the lift-up state (solid line in the figure) in which the seat body 1 is raised almost vertically and the seat body 1 is positioned directly above the elevating device 3, and is shown by a dashed line in the figure. The seat body 1 is lifted down and moved to a position in front of and below the lifting device 3 as described above. 3 in FIG.
Reference numeral 2 denotes a reclining device for the seat back 11, and reference numeral 27 denotes a step in which the occupant puts his or her feet when sitting.

As shown in FIG. 4, the lift-up sheet S slides forward from a normal state (indicated by a two-dot chain line in FIG. 4) which faces forward in the passenger compartment, and is further rotated toward the outside of the vehicle. Lift down and move the seat out of the vehicle to assist the occupant getting on and off.

As shown in FIGS. 2 and 5, the lift-up seat S is provided with armrests 6A for supporting the occupant's upper body from both sides when the seat is moved. The armrest 6A is connected to a stay 66 projecting forward at an intermediate position of the vertical portion 22 of the side plate 20 of the seat holder 2, and a rear end of the armrest 6A is connected to a front end of the stay 66 so as to be vertically rotatable. The armrest 6A is swung up and rotated almost vertically from a use state (solid line in FIG. 5) which is substantially horizontal toward the front (FIG. 5).
Dot-dash line).

[0007]

When an occupant who needs a wheelchair in the lift-up seat S is to take off or sit on the wheelchair, the wheelchair C (FIG. 4) is placed sideways on the seat body 1 that has been moved outside the cabin. The occupant changes the seat from the wheelchair C to the seat S or from the seat S to the wheelchair C while shifting his / her waist with the help of a caregiver or the like, with the height of the seat surface and the seat surface of the seat body 1 aligned. However,
Even if the conventional armrest 6A is stored, the armrest 6
Since A projects to the front side of the seat back 11, the armrest 6A is in the way when the occupant moves.

The lift-up sheet S is a cover member 23 that covers the side plate 20 of the sheet holder 2.
Project from the side of the seat cushion 10,
The seat surface of the wheelchair C cannot be brought into close contact with the side surface of the seat cushion 10 and the upper surface of the cover member 23 is lower than the seat surface of the seat cushion 10. There is a groove-like gap in the, which hinders transfer while shifting the occupant's waist. Therefore, an object of the present invention is to realize an armrest of a lift-up seat that makes it possible for the occupant to take off and sit on the lift-up seat and to switch between the lift-up seat and the wheelchair.

[0009]

SUMMARY OF THE INVENTION According to the present invention, there is provided a lift-up seat which is supported on a vehicle floor via a link mechanism so that the seat can be moved up and down from a vehicle interior to a vehicle exterior. A side plate along the side of the seat cushion and the seat back of the seat body is formed on the left and right side edges of the seat holder, and the rear end of the horizontal portion of the side plate along the side of the seat cushion and the front end of the armrest of the seat. The armrest can be moved up and down by linking with a link arm, and a lock device that locks the rear end of the armrest is provided at the vertical portion of the side plate along the side surface of the seat back so that the armrest can be supported horizontally, and Move the unlocked armrest downward so that it is almost flush with the seat cushion Lifting to so as to house (claim 1).

When the armrest is stored, the armrest is supported on the upper surface of the cover member which covers the horizontal portion of the seat holder and whose upper surface projects outward from the side surface of the horizontal portion.

Since the armrest does not protrude forward of the seat back in the stowed state, the occupant does not hinder the occupant from sitting on the seat. In addition, since the stored armrest is flush with the upper surface of the seat cushion, the occupant can easily take off and sit through the stored armrest.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. FIG. 1A is a side view of a lift-up seat provided with an armrest according to the present invention, and FIG.
It is sectional drawing at the time of armrest accommodation in the position along IB-IB line of (A). The basic structure of the lift-up sheet S is substantially the same as the conventional structure, and the sheet holder 2 on which the seat body 1 is placed is connected to the first and second link arms 31 and
The lifting device 3 is vertically movably supported via a link mechanism 32. The lift-up sheet S is
The slide device 4 installed on the passenger compartment floor F by the lifting device 3
Of the moving object 41 via the rotating device 5.

The seat holder 2 is made of a steel plate and has side plates 20 on both left and right sides. The side plate 20 includes a horizontal portion 21 in which the side edge of the substrate on which the seat cushion 10 is placed stands up, and extends along the lower half of the side surface of the seat cushion 10, and a side portion of the seat back 11 which is bent upward from the rear end of the horizontal portion 21. Vertical portion 22 extending along the side
The ends of the link arms 31 and 32 are connected to the upper end of the vertical portion 22.

The side plate 20 is entirely covered with a cover member 23 made of synthetic resin. The cover member 23 is formed in a substantially inverted L-shape in cross section with an upper surface portion 24 bent toward the seat body 1.
1, the upper surface portion 24 covering the upper edge of the horizontal portion 21
Is protruded outward from the upper and lower middle position of the side surface of the seat cushion 10 in a shelf shape, and there is a step between the seating surface of the seat cushion 10 and the upper surface portion 24 of the cover member 23 (FIG. 1).
(B)). At the rear of the cover member 23, cover members 25 and 26 are provided separately to cover the side surfaces of the lifting device 3 and the side surfaces of the link arms 31 and 32, respectively.

The vertical portion 22 of the side plate 20 is provided with an armrest 6 which can be moved up and down via a link arm 7. The armrest 6 is formed by attaching the outer surface of a metal frame 60 having a substantially U-shaped cross section that opens downward to the cushion member 6.
A gap member 63 is provided between the left and right side surfaces of the frame 60 and the cushion member 61 so as to fill the gap. Armrest 6
The height dimension is substantially the same as the height of the step between the seating surface of the seat cushion 10 and the upper surface portion 24 of the cover member 23, and the width dimension is the same as the overhang dimension of the cover member 23 projecting outward from the side surface of the seat cushion 10. It is the same or slightly wider than the overhang dimension. The armrest 6 has a lock plate 6 projecting rearward at a rear end thereof.
4 is provided, and the lock plate 64 has a square locking hole in the center.

The front end of the armrest 6 is connected to the rear end of the horizontal portion 21 of the side plate 20 by the link arm 7. The link arm 7 is a steel plate, and a cylinder 73 penetrating the tip 71 is connected to the tip 71.
1 is arranged in the frame 60 of the armrest 6, and
Is rotatably mounted on the inner side surface of the frame 60 by a support shaft 74 penetrating the frame 60. When the link arm 7 rotates, the link arm 7 can enter the armrest 6 from a slit 65 formed in the lower surface of the armrest 6 and extending in the front-rear direction.

On the other hand, the proximal end 72 of the link arm 7 has a cylinder 75 that penetrates the proximal end 72 similarly to the distal end 71, and is supported outside the rear end of the horizontal portion 21 of the side plate 20 by a support shaft 76 that penetrates the cylinder 75. It is pivotally mounted on the side surface so as to be vertically rotatable. The position corresponding to the moving range of the link arm 7 is notched in the upper surface portion 24 of the cover member 23 covering the rear end of the horizontal portion 21 of the side plate 20.

A lock device 8 for locking a lock plate 64 at the rear end of the armrest 6 is provided at an intermediate position of the vertical portion 22 of the side plate 20. The lock device 8 has the same structure as the seat belt lock device, and although not shown, has a lock hole that opens forward, and the lock plate 64 is fitted into the lock hole and the lock plate 64 is inserted.
Hook and lock the built-in locking claw in the locking hole.
To release the lock, the release button 81 is pressed to release. The release button 81 can be operated from a hole in the rear half of the cover member 23 that covers the vertical portion 22 of the side plate 20. Further, the front surface of the rear half of the cover member 23 is notched at a portion corresponding to the lock device 8.

The armrest 6 locks the lock plate 64 at the rear end to the lock device 8 and holds the arm plate 6 in a horizontal position with the link arm 7 and the lock device 8 to put it in use. On the other hand, in order to store the armrest 6, the lock of the lock plate 64 and the lock device 8 is released, the armrest 6 is moved downward, and the armrest 6 is moved along the side surface of the seat cushion 10 so that the upper surface 24 of the cover member 23 is moved. Place on top and store. In this case, the upper surface of the armrest 6 is flush with the seat surface of the seat cushion 10, and the side surfaces of the seat cushion 10 and the cover member 23.
It is housed so as to fill the step with.

When the occupant who needs a wheelchair for the lift-up seat S with the armrest 6 stored therein is moved out of the passenger compartment and takes off and sits on the seat S, the stored armrest 6 is placed sideways on the seat S. Fill the gap between the wheelchair C and the seating surface of the seat S and the seating surface C of the wheelchair C
1 is connected flush, the wheelchair user can easily switch between the seat S and the wheelchair by shifting his / her waist while sitting.

[0021]

According to the present invention, the armrest of the lift-up seat that can be moved outside the vehicle compartment can be stored along the side surface of the seat, and the stored armrest is used as a part of the seat surface of the seat. Since it is possible, the occupant can easily take off and sit on the seat, and particularly, the transfer between the seat and the wheelchair becomes easy.

[Brief description of the drawings]

1 shows an armrest of the present invention, FIG. 1 (A) is a side view of a lift-up seat on which the above-mentioned armrest is installed, and FIG. 1 (B) is a view along a line IB-IB in FIG. 1 (A). It is a cross section of the armrest stored state.

FIG. 2 is a perspective view showing a conventional lift-up seat, in a state where the seat is moved out of a vehicle cabin.

FIG. 3 is an operation side view of the lift-up seat.

FIG. 4 is an operation plan view of the lift-up seat.

FIG. 5 is a side view showing a conventional armrest.

[Explanation of symbols]

 S Lift-up seat 1 Seat main body 10 Seat cushion 11 Seat back 2 Seat holder 20 Side plate 21 Horizontal part 22 Vertical part 23 Cover member 24 Upper surface of cover member 6 Armrest 7 Link arm 8 Lock device

Claims (2)

[Claims] 1. A left and right side edge of a seat holder on which a seat body is placed in a lift-up seat which is vertically movably supported on a vehicle floor via a link mechanism so that a seat can be moved from a vehicle interior to a vehicle exterior. A side plate is formed along the side of the seat cushion and the seat back of the seat body, and the rear end of the horizontal portion of the side plate along the side of the seat cushion and the front end of the armrest of the seat are connected by a link arm to form the armrest. A lock device that locks the rear end of the armrest at the vertical part of the side plate along the side of the seat back is provided, allowing the armrest to be supported horizontally, and the unlocked armrest is moved downward. Moved and held at a position almost flush with the seat cushion and stored Armrests for lift-up seats for vehicles. 2. The vehicular vehicle according to claim 1, wherein when the armrest is stored, the armrest is supported on the upper surface of a cover member which covers a horizontal portion of the seat holder and whose upper surface projects outward from a side surface of the horizontal portion. Armrest for lift-up seat.