JP2620737B2 - Unit structure wheelchair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit-structure wheelchair capable of easily adjusting a wheelchair of a special size.

[0002]

2. Description of the Related Art In general, a wheelchair is constituted by fixing a frame or the like formed of a pipe member and a folding mechanism by welding or the like. In order to make this wheelchair easy to use, the length and width of the frame, the height of the seat, etc. should be determined according to the physique and physical condition of the user, and custom-made for each user. Is the best.

[0003]

However, in order to manufacture a wheelchair according to the user's physique and the like, the size of each component including the frame is determined according to the user's physique and the like.
It has to be processed, and it takes a lot of time and man-hours to manufacture a wheelchair, and there has been a problem that a wheelchair cannot be manufactured quickly and at an appropriate cost.

The present invention has been made in view of the above problems, and has as its object to provide a unit-structure wheelchair which can easily and quickly adjust a wheelchair of a special size.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and has a unit of the present invention.
The structure wheelchair has two vertical pipes
And the rear pipe and joint
Formed in a frame shape by the Ip, each equipped with a wheel fixing plate
And a pair of left and right mainframe units
Two sheet pipes and the flat
With two underpipe lines and one side
Crossing the seat pipe and the under pipe on the other side
A folding mechanism unit with cross braces to connect,
Horizontal part of the front pipe parallel to the top and bottom and under
With pipe, footrest and casters
A pair of left and right front frame units and the seat
A seat unit attached to type, substantially parallel to each other
It has front and rear two front pipes provided in a hanging manner
A pair of armrests, a pair of back pipes and back
The backrest consisting of the saucer and the wheel fixing plate rotate
With capable a pair of main wheels mounted respectively, the
A wheelchair having a unit structure, wherein the main frame unit is provided.
The seat has a fitting axis in the front-rear direction and has a lower side pad.
A folding mechanism connecting portion provided at the front end of the type, the front-rear direction
Provided at the front end of the upper side pipe having a fitting axis of
Front frame connecting part and vertical fitting axis
Provided at the front and rear of the upper side pipe
And armrest connecting portion of the pair before and after that it is, fitted in the vertical direction
A back having a joint axis and provided at the upper end of the rear pipe
A rest connecting part, wherein the folding mechanism unit is
A rearward fitting axis is provided at the rear end of the underpipe.
A connected part which is depressed and can be fitted to the folding mechanism connecting part.
And a front and rear fitting pipe having a fitting axis in the front-rear direction.
And a front connecting portion provided at an end, the front
The frame unit has a fitting axis in the front-rear direction,
The front end is provided at the rear end of the horizontal pipe
The connected part that can be fitted to the frame connecting part and the fitting in the front-rear direction
Has a joint axis and is provided at the rear end of its underpipe
Serial and a fittable the connected portion to the front connecting portion, wherein
The armrest has a vertical fitting axis and its front
A pair of armrest links provided at a lower end of the top pipe.
Each includes a the connected portion of the pair can be fitted to the binding unit, the
The backrest has a vertical fitting axis, and
It is provided at the lower end of the pipe and
A wheelchair having a unit structure , comprising a connected portion that can be fitted with each other.

[0006]

[Action] The present invention has been constructed as described above, the front-rear direction of the size of the wheelchair, mainframe Uni <br/> Tsu DOO and the front frame unit by Risorezore units of the desired size Is selected. Also, the size in the width direction is
Each than folding mechanism unit and the sheet unit to select the unit of the desired dimensions. Furthermore, the height of the wheelchair is
Thereby selecting the desired dimensions Ri Lord vehicle wheels, attached to a desired mounting position the wheel fixing plate to the main frame unit. Each unit, armrest,
Fit the backrest, connect the main wheels, and assemble.
Form a wheelchair of the desired size.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

The unit structure of the wheelchair according to the present invention comprises main frame units 10A and 10A having different dimensions.
A pair of left and right main frame units composed of B and 10C, a folding mechanism unit group composed of folding mechanism units 30A, 30B and 30C, and a pair of left and right front frame groups composed of front frame units 40A, 40B and 40C; Seat units 50A, 50B, 50C
, A main wheel group typified by a pair of main wheels 70,
It is configured based on a pair of armrests 55 and a pair of backrests 60.

FIG. 1 is a left side view of a wheelchair according to an embodiment constituted by the above unit structure, and FIG. 2 is a front view.

In FIG. 1, reference numeral 1 denotes a wheelchair having a unit structure (hereinafter, abbreviated as wheelchair 1). In the embodiment, the wheelchair 1 includes a pair of left and right main frame units 10A, a folding mechanism unit 30A, and a pair of left and right front frames. It comprises a unit 40A, a seat unit 50A, a pair of armrests 55, a pair of backrests 60, and a pair of main wheels 70. In the following description of the drawings, the left portion is described, and the description of the symmetric right portion is omitted.

The main frame unit 10A extends in the front-rear direction and has side pipes 1 which are vertically parallel.
1 and 12 and a rear pipe 13 and a joint pipe 14 which are connected to each other and extend in a substantially vertical direction.

At the tip of the side pipe 11, a folding mechanism connecting portion 21 opened forward is formed, and at the tip of the side pipe 12, a front frame connecting portion 22 opened forward is formed. At the upper end of the rear pipe 13, a backrest connecting portion 24 that opens upward is formed. Further, at predetermined positions of the side pipe 12 and the rear pipe 13, armrest connecting portions 23a and 23b each having a lock mechanism for connecting the armrest 55 are provided. In addition, each said connection part 21-
Hereinafter, 24a, b are simply referred to as connecting portions 21 to 24a, b.

At a predetermined position of the connecting portion 21, a mounting hole 21a through which a tapping screw (not shown) can penetrate is formed.
Are provided with many similar mounting holes 24a. In addition, a number of fixing holes 15 for attaching a wheel fixing plate 16 are formed in side surfaces of the rear pipe 13 and the joint pipe 14.

As shown in FIG. 4, the wheel fixing plate 16 has an elongated hole 17 for inserting and fixing an axle 71 at a substantially central portion thereof, and has a horizontally formed hole 17 at its upper and lower edges. Is formed with a plurality of grooves 18 corresponding to the upper and lower positions.
The wheel fixing plate 16 is fixedly fastened to the fixing hole 15 by passing a fixing screw (not shown) through the mounting hole 16a.
Reference numeral 19 denotes a washer with a projection for positioning the axle 81 in the front-rear direction when the main wheel 70 is mounted.
a is provided.

Further, at a predetermined position of the side pipe 12,
A seat pipe support member 26 capable of supporting the seat pipe 33 of the folding mechanism unit 30A is protruded inward, and the joint pipe 14 pivotally connects a tip end of a connecting bar 37 of the folding mechanism unit 30A. Hole 14
a is drilled.

The main frame unit 10A
As shown by a two-dot chain line in FIG. 3, a main frame unit group is formed by larger main frame units 10B and 10C formed by the set length of the side pipe 12.

The folding mechanism unit 30A extends in the front-rear direction and is parallel to the left and right, and under the same, an underpipe 34 that is also parallel to the left and right, and crosses and connects the seatpipe 33 and the underpipe 34. And the intersecting braces 31 and 32 that are the main components.

The seat pipe 33 includes a seat unit 5.
A plurality of sheet fixing holes 33a for attaching 0A are formed. A connected portion 35 that can be fitted to the connecting portion 21 of the main frame unit 10A is formed at the rear end of the underpipe 34, and the connected portion 44 of the front frame unit 40A is formed at the front end. A fittable front connection portion 36 is formed. Fixed holes 35a and 36a serving as pilot holes for tapping screws (not shown) are formed at predetermined positions in the connected portion 35 and the front connecting portion 36, respectively. Further, the base end of the connecting bar 37 is pivotally connected to the cross brace 32, and the distal end of the connecting bar 37 is formed so as to be pivotally connected to the pivot hole 14 a of the joint pipe 14 by a pivot pin. ing.

The folding mechanism 30A includes a cross blaze 3
By setting the size in the width direction of the first and second 32, the spacing between the sheet pipes 33, 33 and the under pipes 34, 34 shown by the two-dot chain line in FIG.
C are formed and together form a folding mechanism unit group.

The front frame unit 40A includes a front pipe 41 having a connected portion 42 projecting rearward at an upper portion, and an underpipe 43 projecting from the lower portion of the front pipe 41 in parallel with the connected portion 42. It is configured as a subject.

The connected portion 42 is formed so as to be fittable to the connecting portion 22 of the main frame unit 10A, and has a fixing hole 42a for a tapping screw at a predetermined position.
A connected portion 44 that can be fitted to the front connecting portion 36 of the folding mechanism unit 30A is provided at the rear end of the underpipe 43.
Are formed, and a mounting hole 44a through which a tapping screw can pass is formed at a predetermined position.

A footrest 46 is provided below the front pipe 41 so that the mounting position can be adjusted up and down. A caster 48 and a brake 49 are provided on the underpipe 43. The casters 48 are shown in FIG.
A plurality of axle holes 48b are formed in the fork 48a as shown in FIG. 4 and the height of the front portion of the wheelchair 1 can be adjusted by selecting the axle holes 48b.

This front frame unit 40A is
As shown by the two-dot chain line in FIG. 6, the front frame unit group is formed by the larger front frame units 40B and 40C formed by the set length of the horizontal portion 41a of the front pipe 41 and the set length of the underpipe 43. Has formed.

The distance between the axes of the connected parts 42 and 44 is
The axial distance between the connecting portions 21 and 22 is the same, and the axial distance between the main frame units 10A, 10B, and 10C and the front frame units 40A, 40B, and 40C is the same. It is formed with connection compatibility with the combination.

The seat unit 50A is made of a rectangular soft sheet member, and has a plurality of mounting holes 51 through which mounting screws can be penetrated on the left and right sides, and an engaging portion to be described later is formed on the rear upper surface. Attached portions 52a, 52b of magic tape, which make a pair with 66a, 66b, are attached. Note that the left-right spacing of the rows of mounting holes 51 corresponds to the left-right spacing of the seat fixing holes 33a of the seat pipe 33 of the expanded folding mechanism 30A.

The seat unit 50A forms a seat unit group with larger-sized seat units 50B and 50C formed by a set length in the width direction indicated by a two-dot chain line in FIG.

The armrest 55 is mainly composed of a main pipe 56 extending in the front-rear direction and front pipes 57, 58 provided substantially parallel to the main pipe 56 in parallel with each other.

At the lower ends of the front pipes 57 and 58,
The connected portions 59a and 59b are fixedly shared by the respective axes. The connected portions 59a and 59b are formed so as to be inserted into and engageable with the connecting portions 23a and 23b of the main frame unit 10A, respectively.
The armrest 55 is detachably formed on the main frame unit 10A by engagement and disengagement of the connecting portions 23a and 23b with the connecting portions 23a and 23b.

The backrest 60 comprises a pair of back pipes 61 and a backrest 65.
A connection portion 62 that can be fitted to the connection portion 24 is formed at a lower portion of the lower portion, and a fixing hole 62a for a tapping screw is formed at a predetermined position.

The backrest 65 has side portions 65a and 65b and a back portion 65c formed of a soft sheet member, and is formed in a protruding shape so that the mounting position to the back pipe 61 can be adjusted. The pipe 61 is formed so as to be able to correspond to the size of the interval. This backrest 65 is
As shown in FIG. 3B, engaging portions 66a, 66b, and 67 forming one side of the magic tape are attached to the back portion 65c, and an attachment forming the other side of the magic tape is provided at a predetermined position on the side pieces 65a, 65b. Parts 68a, 68b and 69a, 69
b is attached.

Then, the backrest 65 is provided with a bending line A,
In (b), the side pieces 65a and 65b are bent inward so as to wrap the back pipe 61, and the
8a, 68b and the engaging portion 67 are engaged, and the back 65
c is bent at a bending line c, and the engaging portions 66a, 66b and the adhered portions 69a, 69b are respectively engaged, and FIG.
The backrest 65 shown in FIG.

The main wheel 70 has a pneumatic tire having a predetermined diameter, and is formed such that its axle 71 is rotatably mounted on the wheel fixing plate 16. This main wheel 70
Form a main wheel group together with other main wheels (not shown) having different diameters.

The preparation of the wheelchair having the unit structure thus constructed will be described.

Prior to the preparation, dimensions such as a seat width, a depth and a seat height of the wheelchair 1 corresponding to a specific wheelchair user's physique and the like are determined. Units and main wheels that match or are slightly larger than this size are selected from each unit group and main wheel group, respectively. Hereinafter, the assembling and preparation will be described with reference to FIG. 11 using the unit indicated by A shown in the embodiment.

First, the connecting portion 21 of the pair of left and right main frame units 10A and the connected portion 35 of the folding mechanism unit 30A are fitted and connected, and a tapping screw is passed through the mounting hole 21a to the fixing hole 35a. Tighten and fix. Also,
The connecting bar 37 is pivotally connected to the pivot hole 14a by a pivot pin.

Next, a pair of left and right front frames 40A is provided.
The connected portion 42 is fitted to and connected to the connecting portion 22, and a tapping screw is passed through the mounting hole 22a and tightened and fixed to the fixing hole 42a. Further, the connected portion 44 is fitted and connected to the front connecting portion 36, and a tapping screw is passed through the mounting hole 44a and fastened and fixed to the fixing hole 36a. Thus, the side pipe 11, the under pipe 34, and the under pipe 43 are connected in a straight line, and the side pipe 12 and the horizontal portion 41a of the front pipe 41 are connected in a straight line.

Then, the seat unit 50A is fixed to the folding mechanism unit 30A by passing the mounting screws through the mounting holes 51 and tightening the seating holes 33a. Next, the connected portions 59a, 59b of the pair of armrests 55 are inserted into the connecting portions 23a, 23b, respectively, and the two are engaged, locked, and connected.

Further, the connected portion 62 of the back pipe 61 is fitted and connected to the connecting portion 24, a tapping screw is passed through a desired mounting hole 24a, the height of the back pipe 61 is determined, and the back pipe 61 is inserted into the fixing hole 62a. Tighten and fix. The backrest 65 wraps the back pipe 61 on the left and right sides of the side pieces 65a and 65b, respectively, and determines and fixes the height position. Back 65c
Is bent to determine the vertical length of the backrest, and the engaging portions 66a, 66b at the distal ends thereof are attached to the seat unit 50A.
Are attached to the attached parts 52a and 52b. As a result, the rear end of the seat unit 50A and the lower end of the backrest 65 are connected to form a stable seat.

In the front frame unit 40A, the axle hole 42b of the caster 48 is selected to adjust the height of the front portion of the wheelchair 1, and the vertical position of the footrest 46 is adjusted and fixed. Next, the main wheel 70 is fixed to the wheel fixing plate 16. At this time, the mounting position of the wheel fixing plate 16 in the fixing hole 15 and the groove 1 of the
The seat height and the seat angle of the wheelchair 1 are finely adjusted by the positions of engagement with the wheels 8 and 18.

As described above, by selecting the unit dimensions of each unit group and main wheel group, the wheelchair 1 of a specific size is selected.
Can be easily assembled. Further, it is also possible to cut the connecting portion and the connected portion of each unit with a general-purpose tool such as a pipe cutter so as to respond to a demand for finer dimensions.

In the thus constructed wheelchair 1, when the folding mechanism 10A is expanded during use, the seat pipe 33 is supported by the seat pipe supporting member 26 of the main frame unit 10A, and the seat unit 50A is substantially horizontal. Form a stable sheet surface.

When folded, the seat unit 50 is closed.
By lifting the central portion of A, the left and right seat pipes 33 approach, and the left and right under pipes 34 approach. The left and right side pipes 1
1 approaches, the upper part of the joint pipe 14 is also pulled in via the connecting bar 37, and the left and right main frame units 10A are folded together with the folding mechanism unit 30A in a substantially parallel state.

In the embodiment, each unit group has a three-stage structure, but the number of stages can be freely set. Further, the armrest and the backrest may be configured as a unit group. Further, the fixing of the connecting portion and the connected portion may be performed by another fixing method instead of the tapping screw, and the fixing position is not particularly limited to the illustrated example.

[0044]

As described above, according to the wheelchair having the unit structure of the present invention, by preparing each unit group, main wheel group, armrest, and backrest in advance, a wheelchair of a special size can be easily and easily provided. Can be quickly prepared. Further, even in a place where the production equipment is not provided, it is possible to easily assemble with a general-purpose tool, and it is possible to quickly supply a bespoke wheelchair adapted to the physique of a wheelchair user.

[Brief description of the drawings]

FIG. 1 is a left side view of a wheelchair having a unit structure according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a perspective view of a main frame unit.

FIG. 4 is a perspective view of an axle fixing plate.

FIG. 5 is a perspective view of a folding mechanism unit.

FIG. 6 is a perspective view of a front frame unit.

FIG. 7 is a perspective view of a seat unit.

FIG. 8 is a perspective view of an armrest.

FIG. 9 is a perspective view of a back pipe.

FIG. 10 is a perspective view illustrating a backrest.

FIG. 11 is a perspective view illustrating assembly of a frame portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit structure wheelchair 10A, 10B, 10C Main frame unit 16 Wheel fixing plate 21 Folding mechanism connection part 22 Front frame connection part 23a, 23b Armrest connection part 24 Backrest connection part 30A, 30B, 30C Folding mechanism unit 35 Connection part 36 Front connection part 40A, 40B, 40C Front frame unit 42, 44 Connection part 46 Footrest 48 Caster 50A, 50B, 50C Seat unit 55 Armrest 59a, 59b Connection part 60 Backrest 62 Connection part 65 Backrest 70 Main wheel

Claims (1)

(57) [Claims] 1. Two side pipes parallel to each other and
Rear pipe and joint pie connecting them
Formed in the shape of a frame with a wheel fixing plate
A pair of left and right main frame units, two sheet pipes parallel to the left and right, and
With two underpipe parallel to
The one side of the seat pipe and the other side of the under pipe
Mechanism with cross braces that crosses and connects
The unit and the horizontal part of the front pipe and the underside parallel to each other
With pipe, footrest and casters
A pair of left and right front frame units, a seat unit attached to the seat pipe, and two front and rear fronts which are parallel to each other and provided in a substantially drooping shape.
A backrest comprising a pair of armrests having a pipe, a pair of backpipes and a backrest;
Strike and a pair of rotatably mounted on the wheel fixing plate, respectively.
A wheelchair having a unit structure, wherein the main frame unit has a fitting axis in a front-rear direction.
Folding provided at the front end of the lower side pipe
A mechanism connecting portion and a front and rear fitting pipe having a fitting axis in the front-rear direction.
A front frame connecting portion provided at an end, and a fitting axis in a vertical direction;
A pair of front and rear armrests provided at the front and rear
Part, and has a fitting axis in the vertical direction and is provided at the upper end of the rear pipe.
And a folding backrest connecting portion, wherein the folding mechanism unit has a fitting axis in the front-rear direction.
The folding mechanism provided at a rear end of the underpipe
A connected portion that can be fitted to the connecting portion, and has a fitting axis in the front-rear direction.
And a front connection unit provided, wherein the front frame unit has a fitting axis in the front-rear direction.
Has its front pipe located at the rear end of the horizontal part
Capable of being fitted to be consolidated part to the front frame connecting portion, the rear end of the under pipe has a longitudinal mating axis
A connected portion provided and capable of being fitted to the front connection portion;
The armrest has a fitting axis in the vertical direction,
The pair of armless members provided at the lower end of the front pipe
The backrest includes a pair of connected portions each of which can be fitted to the connecting portion, and the backrest has a fitting axis in a vertical direction, and
The backrest connecting portion provided at the lower end of the back pipe
A wheelchair having a unit structure , comprising a connected portion which can be fitted to each of the wheelchairs.