JP2003126168A - Wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheelchair which can regulate its width. SOLUTION: Right and left end pillars 3, 3 are linked by one or more than one X frames 11. The X frames 11 are joined at the midpoint with them turned around each other and comprises a pair of turning rods 11A, 11A whose bottom parts are fixed on the bottom of the right and left end pillars. The bottom parts of turning rods are fixed on the bottom of the right and left end pillars so that a fixing position can be regulated up and down. When the turning rods 11A, 11A of the X frames 11 are turned at a center C as a supporting point, the width between the end pillars 3 and 3 can be regulated. On this occasion, vertical range of the X frames also changes. Because the bottom parts of the X frames 11 are fixed on the bottom parts of right and left end pillars so that the fixing position can be regulated up and down, even if the vertical range changes, they can couple the right and left end pillars 3, 3 in response to it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair with adjustable width.

[0002]

2. Description of the Related Art Wheelchairs with adjustable width have not been provided.

[0003]

However, as shown in FIG. 10, in order for the user to move the wheelchair (9) independently of the caregiver, the main wheel (91) or the hand rim attached to the main wheel is manually operated. Since the width of the wheel (9) must be adjusted according to the body shape of the user, when the person on the wheelchair (9) turns the wheel (91) by hand, the width of the wheel (91) must be adjusted. There was a problem in that it was too wide or too narrow to place the hand in a position where the wheels (91) could be easily turned.

[0004]

As a means for solving the above-mentioned conventional problems, the present invention has a structure in which left and right side frames (3, 3) are connected by one or more X frames (11, 12). And
The X-frames (11, 12) are rotatably connected to each other at the center, and the lower ends of the X-frames (11, 12) are attached to the lower parts of the left and right side frames.
A, 11A, 12A, 12A), and the rotating rod (11A, 11A, 12A, 12A)
The lower end provides a wheelchair (1) which is attached to the lower portions of the left and right side frames so that the attachment position can be adjusted up and down. The lower ends of the rotating rods (11A, 11A, 12A, 12A) are attached to the lower part of the side frame via a shaft (26), and the shafts (26) are vertically arranged on the lower part of the side frame. Multiple shaft holes (13
A, 13B, 13C) is preferably supported by at least one of the upper and lower portions of the rotary rod (12A, 12A) above the center and the left and right side frames (3, 3). Has a link arm
(30,30) is passed over, and the link arm (30,30)
It is desirable that the mounting position on the side frame side is adjustable up and down. Further, the link arm (30, 30) is a side frame.
It is mounted on the (3,3) side via a shaft (32,32), and the shaft (32,32) is provided on the side frame (3,3) side and is arranged in a plurality of rows arranged vertically. It is desirable to be supported by one of the shaft holes (14A, 14B, 14C).

[0005]

In the present invention, the left and right side frames (3, 3) of the wheelchair (1) are connected by a pair of front and rear X frames (11, 12), and the rotating rods (11A, 11A) of the X frames (11, 12) are connected. , 12A, 12A) with the center C as a fulcrum, the width between the X frames (11, 12) and the side frames (3, 3) can be adjusted as shown in FIG. At this time, the X frame (11, 12)
Although the vertical width also changes, the lower end of the rotating rod (11A, 11A, 12A, 12A) is attached to the lower part of the left and right side frames so that the mounting position can be adjusted up and down. Correspondingly, the left and right side frames (3, 3) can be connected.

The lower end of the rotary rod (11A, 11A, 12A, 12A) has a shaft (2
6) is attached to the lower part of the side frame (3, 3), and the shaft (26) is a plurality of shaft holes arranged vertically below the side frame (3, 3). (13A, 13B, 13C), when supported by one of the (13A, 13B, 13C), the rotary rod (11A, 11A, 12A, 12A)
A, 13B, 13C), select one of the
By inserting (26), the width between the side frames (3, 3), that is, the width of the wheelchair (1) can be adjusted stepwise.

A link arm (30, 30) is provided between at least a pair of upper portions of the pivoting rods (11A, 11A, 12A, 12A) above the center and the left and right side frames (3, 3). The link arm (30,
If the mounting position is adjustable up and down on the side frame (3, 3) side, the link arm (30) corresponds to the width adjustment between the side frames (3, 3).
The mounting position of (30) can also be adjusted, and the X frame (11, 12) can be reinforced.

The link arm (30, 30) has a shaft (32, 30) on the side frame side.
32) and a plurality of shaft holes (14A, 14B, 1) provided on the side frame side and arranged vertically above the shaft (32).
By selecting one of 4C) and rotatably supporting it in the shaft hole, the mounting position of the link arm (30, 30) can be adjusted stepwise.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described with reference to an embodiment shown in FIGS. 1 to 8. The body (2) of a wheelchair (1) shown in FIGS. 1 to 3 has a pair of left and right side frames (3, 3). ) Consists of the side frame (3, 3), the seat beam part (4), the front and rear pedestal parts (5, 6), the armrest part (7),
It comprises a spine column (8), a footrest support beam (9) and a lower beam (10), and the side frames (3, 3) are connected by a pair of front and rear X frames (11, 12).

Rear pedestals (6, 6) on the side of the body (2)
A pair of main wheels (15,15) are attached to the
Auxiliary wheels (47) are attached to (5,5). Further, between the seat beams (4, 4), the seat cloth (19) is passed over the pair of upper rods (17, 17) at the upper ends of the X frames (11, 12), and the side frames (3, 3) )
A back cloth (21, 21) is placed between the spine columns (8, 8) of the footrest, and a pair of left and right footrests (46) are attached to the footrest support beam (9) so that they can be flipped up sideways. There is. Further, the armrest pad (23) is attached to the upper surface of the armrest portion (7), and the upper end of the back pillar portion (8) is bent and the handle (45) is attached.

As shown in FIGS. 3 and 4, the seat cloth (19, 19) and the back cloth (21, 21) can be divided into two cloths by a central fastener (20, 22). It will be pasted together. The cloth is preferably made of a strong synthetic fiber such as polyamide or polyester.

As shown in FIG. 5, the pair of front and rear X frames (11, 12) connecting the left and right side frames (3, 3) respectively include a pair of rotating rods (11A, 11A) and a pair of rotating frames. It consists of a rod (12A, 12A),
The pair of pivoting rods (11A, 11A, 12A, 12A) are rotatably coupled to each other with a center C as a fulcrum, and the pair of X frames (11,
At the upper end of 12), a pair of cylindrical upper rods (17, 17)
At the lower end, a pair of cylindrical lower rods (18, 18) are inserted and welded.

As shown in FIG. 6, the lower beam (10) at the lower portion of the side frame (3) has a pair of front and rear prismatic lower rod mounting portions (13, 13).
Are welded, and the lower rod mounting portion (13, 13) has a shaft hole (13A, 13
B, 13C) are arranged in a plurality (three) vertically. Further, a retaining shaft hole (13D) is formed in one of the lower rod mounting portions (13, 13) so as to penetrate from the upper surface to the lower surface. In addition, a pair of front and rear rod receivers are attached to the seat beam portion (4) of the side frame (3).
(16,16) is installed.

Further, as shown in FIG. 7, a prismatic link arm mounting portion (14) is welded to the rear leg column portion (6), and a screw hole (a shaft hole) is formed in the link arm mounting portion (14). (14A, 14B, 14C)
Are arranged in appropriate positions corresponding to the rotation of the rotating rods (12A, 12A), and are arranged in a plurality (three) vertically and horizontally.

In order to connect the side frames (3, 3) with the X-frames (11, 12), the cylindrical lower rod (18) of the X-frames (11, 12) is attached to the lower rod mounting portion. (13A, 13B, 13C) For example, align the shaft hole (13A) with the shaft hole (13A) and align the shaft (26) that is the shaft hole (13A).
A, 13A) and the cylindrical lower rod (18) are inserted and supported. At this time, the upper rod (17) of the X frame (11, 12) is a seat beam portion.
It is supported by the rod receiver (16, 16) of (4).

In this way, the X-frames (11, 12) are attached to the left and right side frames.
When it is attached to (3, 3), the retaining shaft (27) is attached to the retaining shaft hole (13D) of the lower rod mounting part (13) and the pivot shaft (26) as shown in FIG.
Insert it into the retaining shaft hole (26A) provided in. The axis
(26) is bent at one end to form a grip portion, and restricts the pivot shaft (26) from excessively entering to facilitate the alignment of the retaining shaft hole (26A).

In this way, the left and right side frames (3, 3) are connected to the X frame (1
1, 12), the link arm (30, 30) shown in FIG. 7 is further attached to the upper part of the center of the pivoting rod (12A, 12A) and the link arm attachment part (14) of the rear leg column part (6, 6). , 14) and
The screw hole (14
Fixed to A). The left and right side frames (3, 3) and the X frames (11, 12) are firmly connected by the link arms (30, 30).

In order to adjust the width of the wheelchair (1) of this embodiment, the back fastener (19) and the seat fastener (21) are stripped of the surface fasteners (20, 22) and the retaining shaft (27) is retained. Pull out from the shaft hole (13D). Further, pull out the pivot (26) from the lower rod (18) and the shaft hole (13A). Then remove the screw (32) that secures the link arm (30) to the link arm attachment part (14),
Release the connection between (30) and the side frame (3,3). In this state, as shown in FIG. 8, the rotating rods (11A, 11A, 12A, 12A) of the X frame (11, 12)
While adjusting the width of the X frame (11, 12) by rotating the center C as a fulcrum, the side frames (3, 3) are moved accordingly to move the side frame (3, 3).
Adjust the width of (1).

At this time, if the width of the X frame (11, 12) is narrowed, X
The height of the frame (11,12) becomes large, and the width of the X frame (11,12) becomes narrower as the width of the X frame (11,12) becomes wider. And X frame
The lower rod (18, 18) of (11, 12) is positioned by selecting an appropriate shaft hole from the shaft holes (13A, 13B, 13C) and aligning the pivot shaft (26) with the shaft hole (13A, 13A, 13B). 13B, 13C) and the cylindrical lower rod (18, 18) are inserted inside to support the X frame (11, 12).

When the width is adjusted in this way and the X frame (11, 12) is fixed to the side frame (3, 3), the retaining shaft (27) is attached to the lower rod mounting portion.
Insert it into the retaining shaft hole (13D, 26A) of (13). Further, the link arm (30, 30) is passed from the center of the pivoting rod (12A, 12A) to the upper part and the link arm mounting portion (14, 14) of the rear leg column (6, 6), and the pivoting rod (12A , 12A) and the screw holes (14A, 14B, 14C) of the link arm mounting part (14, 14), and select the appropriate screw holes and fix them with the screws (31, 32). To do. After adjusting the width between the side frames (3, 3) in this manner, the surface fasteners (20, 22) of the seat cloth (19) and the back cloth (21) are reattached to adjust the seat portion and the backrest.

In this embodiment, the number of shaft holes and screw holes is three, and the width can be adjusted in three steps, but the number of shaft holes and screw holes may be two or four or more. The number of X frames may be one or three or more. Further, the shafts (26, 31, 32) do not necessarily have to be pivots or screws, but if they are pivots or screws, the lower rod and the link arm can rotate and the wheelchair can be folded as shown in FIG. .

[0022]

According to the present invention, since the width of the wheelchair can be adjusted, the width can be adjusted so that the user can operate it most easily. Alternatively, manufacturers do not have to manufacture many types of products with different widths.

[Brief description of drawings]

1 to 9 show an embodiment of the present invention.

[Figure 1] Side view of wheelchair

[Figure 2] Wheelchair front view

[Figure 3] Wheelchair plan view

FIG. 4 is an explanatory perspective view of the cushion

FIG. 5 is a perspective view of an X frame.

FIG. 6 is a perspective view illustrating an attachment state of an X frame to a side frame.

FIG. 7 is a perspective view for explaining a link arm attachment state.

FIG. 8 is a front view illustrating a width adjusting mechanism.

[Fig. 9] Front view of the wheelchair in a folded state

FIG. 10 is a front view illustrating a conventional wheelchair.

[Explanation of symbols] 1 wheelchair 3 side frames 11,12 X frame 11A, 11A, 12A, 12A rotating rod 13A, 13B, 13C, 14A, 14B, 14C Shaft hole 26,32 Axis 30 link arm

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[Procedure amendment]

[Submission date] October 25, 2001 (2001.10.
25)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described with reference to an embodiment shown in FIGS. 1 to 8. The body (2) of a wheelchair (1) shown in FIGS. 1 to 3 has a pair of left and right side frames (3, 3). ) Consists of the side frame (3, 3), the seat beam part (4), the front and rear pedestal parts (5, 6), the armrest part (7),
Spine (8), consists footrest preparative supporting Jihari (9) and lower beam (10), said side frame (3,3) are joined by a pair of front and rear X-frame (11, 12).

Claims (4)

[Claims] 1. A structure in which left and right side frames are connected by one or two or more X frames, the X frames being rotatably coupled to each other at the center, and the lower end portions are attached to the lower parts of the left and right side frames. A wheelchair comprising a pair of rotating rods, the lower end of the rotating rod being attached to the lower portion of the left and right side frames so that the attachment position can be adjusted up and down. 2. The lower end of the rotating rod is attached to the lower portion of the side frame via a shaft, and the shaft is one of a plurality of axial holes arranged in the lower portion of the side frame and arranged vertically. The wheelchair according to claim 1, which is supported by one of the above. 3. A link arm is arranged between at least a pair of upper portions of the center of the rotary rod and the left and right side frames, and the link arm is vertically adjustable in its mounting position on the side frame side. The wheelchair according to claim 1 or 2, which is provided. 4. The link arm is mounted on a side frame side via a shaft, and the shaft is supported by one of a plurality of shaft holes arranged vertically on the side frame side. The wheelchair according to claim 3, wherein