CN201076566Y

CN201076566Y - Wheelchair foot rest structure

Info

Publication number: CN201076566Y
Application number: CNU2007201391027U
Authority: CN
Inventors: 杨景裕
Original assignee: KANGYANG CO Ltd
Current assignee: HUZHOU KANGDE MEDICAL INSTRUMENT CO., LTD.
Priority date: 2007-08-13
Filing date: 2007-08-13
Publication date: 2008-06-25
Anticipated expiration: 2017-08-13

Abstract

A foot stool structure of a wheelchair comprises a pivoting frame, a pivoting block, a pivoting bar, a pedal holdfast and a positioning element, wherein the pivoting frame is fixed on the wheelchair, the pivoting block comprises a first end, a middle section and a second end, the first end of the pivoting block is fixed on the pivoting frame, the pivoting bar comprises a first end and a second end, the first end of the pivoting bar is pivoted with the second end of the pivoting block, the upper end of the pedal holdfast is pivoted with the second end of the pivoting bar, and the lower end of the pedal holdfast is connected with a pedal. The positioning element is assembled between the pedal holdfast and the pivoting frame, which comprises a positioning sheet, an elastic body, a fixed block and a slide bar, wherein the slide bar is provided with a ring strip, one end of the slide bar is firstly pivoted on the middle section of the pivoting block, the fixed block, the positioning sheet and the elastic body are sleeved in the slide bar in turn, and the other end of the slide bar is sleeved in the inner portion of the pedal holdfast.

Description

The foot rest structure of wheelchair

Technical field

This utility model is relevant with a kind of foot rest structure of wheelchair.

Background technology

See also Fig. 6, general wheelchair all has two foot rests, and this foot rest can make the user list foot or the both feet of wheelchair raise; The behaviour in service that single foot is raised is when being common in user feet from injuring (as planter cast); The behaviour in service that both feet are raised is when being common in user and need lying flat rest.

Above-mentioned known wheelchair and foot rest thereof comprise wheelchair A, articulate frame B, pivot joint block C, pedal support D and fixture E, wherein: articulate frame B and be fixed in wheelchair A; And pivot joint block C affixed pivot joint frame B and pivot joint pedal support D; Again, fixture E includes spacer E1, spring E2, fixed block E3 and slide bar E4, and fixture E mat fixed block E3 and pivot close in articulating on the frame B, and be provided with spring E2 between fixed block E3 and the spacer E1, and slide bar E4 passes fixed block E3, spacer E1 and spring E2, and the end of fixture E is hubbed on the pedal support D, and the bottom of pedal support D is provided with pedal D1, in addition, the free end of the slide bar E4 of fixture E is provided with stop block E5, in case fastening bit slice E1 slippage.

See also Fig. 7, when the foot rest of above-mentioned known wheelchair is adjusted in operation, at first push the spacer E1 of fixture E, make slide bar E4 can become flexible displacement, and then pedal support D and pedal D1 can be raised, then decontrol spacer E1 and can locate.When raising, the foot rest of wheelchair is about 90 degree, it is shorter to the length of pedal D1 by pivot joint block C, make the length of the user foot on the wheelchair greater than the length of pivot joint block C to pedal D1, the sole that is user stretches out outside the pedal D1, except bending knee, just can only move the health of user for this situation.

So the shortcoming of the foot rest of above-mentioned known wheelchair is:

1, during the user sitting posture, be to be fulcrum with the buttocks, thigh and shank internode are bending, and knee can be placed on the pedal sole a little more than the horizontal line of thigh, length between pedal support and pivot joint block is fixed range at this moment, so when shank raise 90 the degree with thigh horizontal after, then the total length between shank and thigh is just long than the length between pedal and pivot joint block, no matter be the neither convenience of health of bending knee or moving user therefore, more may therefore cause the secondary injury.

2, the fixed block of the foot rest of known wheelchair, slide bar, spacer the position is set, at pedal support and articulate the frame side, when it causes user turnover wheelchair easily collision injured, and very not attractive in appearance, influence the overall aesthetics of wheelchair.

The utility model content

The purpose of this utility model provides a kind of foot rest of wheelchair, and when making the shank of user raise with foot rest, sole can not propped up by pedal, and foot rest action is smooth-going when moving can not rock, use more comfortable, safety.

For reaching above-mentioned purpose, this utility model is adopted following organization plan: a kind of foot rest structure of wheelchair, comprise the pivot joint frame, pivot joint block, pivoted pole, pedal support and keeper, wherein: articulate frame and be fixed in wheelchair, and pivot joint block comprises first end, the stage casing, second end, and first end of pivot joint block is fixed in the pivot joint frame, pivoted pole comprises first end again, second end, and second end of first end of pivoted pole and pivot joint block articulates, and the pivot joint of second end of the upper end of pedal support and pivoted pole, and the bottom of pedal support and pedal binding, again, keeper is mounted on pedal support and articulates between the frame, include spacer, elastomer, fixed block and slide bar, wherein, and an end of slide bar is articulated in the stage casing of pivot joint block earlier, and fixed block, after spacer and elastomer were inserted in slide bar in regular turn, the other end of slide bar was inserted in pedal support inside again.

Above-mentioned pedal support is a circle shape body.

Above-mentioned pivot joint block is an arc shape.

Above-mentioned slide bar is inserted in and is provided with a damping in the pedal support.

Above-mentioned slide bar is provided with the ring bar, and the ring bar can be recessed or raised line.

Above-mentioned elastomer is a spring.

Adopt such scheme, this utility model mainly is that group is provided with keeper between the pivot joint frame of foot rest structure, this keeper makes the length distance between pedal and pivot joint block, can change and change along with the length between user leg extension gaskin and thigh, and it has following advantage:

1, the foot rest structure of this utility model wheelchair, the design of its pivot joint block arc shape is during just as human body sitting posture, knee when shank and thigh are crooked, when foot rest need be raised, be that the point of rotation is raised with the pivot joint block, and the length distance between pedal and pivot joint block, to change with the length between user lower limb elongation gaskin and thigh, so, sole can not propped up by pedal, for meeting ergonomics and using comfortable wheelchair foot rest innovation.

2, the foot rest structure of this utility model wheelchair, the slide bar of its keeper are arranged on pedal support and articulate between the frame, can not protrude at cradling piece externally, and user can not collide injured when the turnover wheelchair, can keep the overall aesthetics of wheelchair.

3, this utility model is provided with a damping in pedal support, it act as the gap of filling slide bar and pedal support, make the slide bar effect that tool one props up during slippage in pedal support, and then slide bar can not rocked, and then can keep smooth-going action when foot rest is moved.

Description of drawings

The foot rest side view of Fig. 1 this utility model wheelchair;

The keeper office sketch map of Fig. 2 this utility model foot rest;

The spacer illustrative view of the keeper of Fig. 3 this utility model foot rest;

The foot rest of Fig. 4 this utility model wheelchair is raised side view;

The foot rest of Fig. 5 this utility model wheelchair is raised the side view under the user mode;

Fig. 6 commonly uses the foot rest side view of wheelchair;

The foot rest that Fig. 7 commonly uses wheelchair is raised the side view under the user mode.

The main element symbol description

1 articulates frame 2 pivot joint blocks 21 first ends

22 stage casings, 23 second ends

3 pivoted poles, 31 first ends, 32 second ends

4 pedal supports, 41 pedals

5 keepers, 51 spacers, 511 circular holes

52 elastomers, 53 fixed blocks, 54 slide bars

541 ring bars, 542 dampings, 6 carriages

A wheelchair B articulates frame C pivot joint block

D pedal support D1 pedal

E fixture E1 spacer E2 spring

E3 fixed block E4 slide bar E5 stop block

The specific embodiment

See also Fig. 1, Fig. 2, this utility model includes pivot joint frame 1, pivot joint block 2, pivoted pole 3, pedal support 4 and keeper 5, wherein:

Articulate frame 1, be fixed in wheelchair A.

Pivot joint block 2 is curved shape, and it comprises first end 21, stage casing 22, second end 23, and first end 21 of pivot joint block 2 is fixed in pivot joint frame 1 top.

Pivoted pole 3 comprises first end 31, second end 32, and second end 23 of first end 31 of pivoted pole 3 and pivot joint block 2 articulates.

Pedal support 4 is a circle shape body, and its upper end articulates with second end 32 of pivoted pole 3, and the bottom of pedal support 4 and pedal 41 bindings.

Keeper 5, it is mounted between pedal support 4 and the pivot joint block 2, include spacer 51, elastomer 52, fixed block 53 and slide bar 54, wherein, wear circular hole 511 in the spacer 51, and slide bar 54 is provided with ring bar 541, ring bar 541 can be recessed or raised line, and an end of slide bar 54 is articulated in the stage casing 22 of pivot joint block 2 earlier, and after fixed block 53, spacer 51 and elastomer 52 be inserted in slide bar 54 in regular turn, the other end of slide bar 54 was inserted in pedal support 4 inside again, and slide bar 54 is inserted in and is provided with a damping 542 in the pedal support 4, in addition, elastomer 52 is a spring.

The acting as of above-mentioned damping 542 filled the gap of slide bar 54 and pedal support 4, so that slide bar 54 effect that tool one props up during slippage in pedal support 4, and slide bar 54 can not be rocked, and then can keep smooth-going action when foot rest is moved.

In addition, pedal support 4 nearly middle sections are provided with carriage 6.

See also shown in Figure 2, spacer 51 is subjected to the contact of elastomer 52 and makes circular hole 511 clips in the spacer 51 in slide bar 54, and slide bar 54 can not be moved, and ring bar 541 has auxiliary the acting on to the slide bar 54 of pulling of circular hole 511 of strengthening, and produces slippage to avoid slide bar 54.

Please continue and consult Fig. 3, shown in Figure 4, push spacer 51, make elastomer 52 compressions, and then make the circular hole 511 of spacer 51 and the outer rim of slide bar 54 be vertical configuration, so that slide bar 54 can telescopic displacement, thereby pedal support 4 can be raised by plumbness change into level, support the shank of human body again with carriage 6.

Again, as Fig. 4, shown in Figure 5, at this moment, pedal support 4 can be raised together with pedal 41, and raise for the point of rotation in its stage casing 22 by pivot joint block 2, so pivot joint block 2 is elongated relatively to the length of pedal 41, so, user sole on the wheelchair can not propped up by pedal 41, and does not need the displacement user, for meeting ergonomics and using comfortable wheelchair foot rest.

Claims

1. the foot rest structure of a wheelchair is characterized in that: includes,

Articulate frame, be fixed in wheelchair;

Pivot joint block comprise first end, stage casing, second end, and first end of pivot joint block is fixed in the pivot joint frame;

Pivoted pole comprises first end, second end, and second end of first end of pivoted pole and pivot joint block articulates;

Pedal support, its upper end articulates with second end of pivoted pole, and the bottom of pedal support and pedal binding;

Keeper, it is mounted on pedal support and articulates between the frame, include spacer, elastomer, fixed block and slide bar, wherein, spacer is provided with a circular hole, one end of slide bar is articulated in the stage casing of pivot joint block, and after fixed block, spacer and elastomer be inserted in slide bar in regular turn, the other end of slide bar was inserted in pedal support inside again.

2. the foot rest structure of wheelchair as claimed in claim 1 is characterized in that: this pedal support is a circle shape body.

3. the foot rest structure of wheelchair as claimed in claim 1, it is characterized in that: this pivot joint block is an arc shape.

4. the foot rest structure of wheelchair as claimed in claim 1, it is characterized in that: this slide bar is inserted in and is provided with a damping in the pedal support.

5. the foot rest structure of wheelchair as claimed in claim 1, it is characterized in that: this slide bar is provided with the ring bar, and this ring bar is recessed or raised line.

6. the foot rest structure of wheelchair as claimed in claim 1, it is characterized in that: this elastomer is a spring.