CN101268978B

CN101268978B - Folding electric wheelchair structure

Info

Publication number: CN101268978B
Application number: CN2007100882350A
Authority: CN
Inventors: 伍必翔
Original assignee: Pihsiang Machinery Mfg Co Ltd
Current assignee: Pihsiang Machinery Mfg Co Ltd
Priority date: 2007-03-20
Filing date: 2007-03-20
Publication date: 2012-07-04
Anticipated expiration: 2027-03-20
Also published as: CN101268978A

Abstract

The invention relates to a folding power wheelchair structure which contains a chair group and a wheel group; wherein, the wheel group is assembled at the bottom side of the chair group, and the chair group comprises a four link mechanism formed by correspondingly pivoting a sitting part, a first bracket, a second bracket and a third bracket, so as to lead the chair group to form a folding path along the same direction to be further perpendicular to an axes of a driving wheel arranged on the wheel group, therefore, the mobility impaired can directly fold and need not to waste the time and the physical power to disassemble the wheel group.

Description

Folding electric wheelchair structure

Technical field

The present invention relates to a kind of electric wheelchair, be meant a kind of folding electric wheelchair structure especially.

Background technology

The idea of showing loving care for along with social progress humanity promotes day by day; In order to solve disabled or the old and the weak women and children are handicapped; So, alleviated handicapped puzzlement though can't substitute health fully on the market and then develop a kind of electric wheelchair and provide and take and then alternative health action;

Press a kind of electric wheelchair package assembly of No. the 6135222nd, United States Patent (USP); This electric wheelchair 10 (please consulting Fig. 1 simultaneously to shown in Figure 3) is combined by a chair group 11 and wheels 12, and wherein, this chair group 11 has two chair framves 111,112; An one bent chair cushion 113 and a folding frame 114 are set between this chair frame 111 and this chair frame 112; This chair frame 111 and this chair frame 112 can see through this folding frame 114 to carry out horizontal folding foldingly, and these wheels 12 comprise two front jocket wheels 121, two driving wheels 122 and two anti-tip wheels 123, aforementioned and be installed in chair frame 111 bottom sides of this chair group 11 in regular turn; Learn like further analysis of above-mentioned structure, have following point:

One of which: this electric wheelchair 10 must be separated from this chair frame 111 this driving wheel 122 earlier when carrying out the folding operation with chair frame 112, make the driving wheel 122 of these wheels 12 just be able to carry out folding storage;

Its two: after this chair group 11 was separated with these wheels 12, the two must separately be deposited and take up room, and separately deposited and forget lay down location easily and then can't effectively manage;

Its three: this wheels 12 driving wheels 122 make these wheels have suitable weight because have dynamic component and combination member etc., cause the mobility impaired on assembling is disassembled, will expend more time with physical;

Problem place that so the problems referred to above are the present utmost point need improve research and development.

And in order effectively to solve aforementioned relevant issues, the inventor based on the past in the electric wheelchair field cumulative research and development technology of institute and experience, after test for several times and attempting in many ways, develop finally and a kind of folding electric wheelchair structure.

Summary of the invention

The object of the present invention is to provide a kind of need not expend time in and muscle power is disassembled driving wheel, the electric wheelchair that can directly fold.

For realizing the object of the invention, a kind of folding electric wheelchair structure is provided, comprise:

One chair group; Sitting part, one first, one second and one the 3rd by one combines; This sit part and this second pivot joint, this second articulate and the 3rd and this seat part pivot joint with the 3rd with this first pivot joint, this first; This chair group sees through sits part, first, second and the 3rd composition one quadric chain, and this chair group is folded to form unidirectional folding path through quadric chain; And

One wheels, other establishes the 3rd bottom side that two driving wheels are installed in this chair group, makes the driving wheel axle center of the folding path of this chair group perpendicular to these wheels.

Because seeing through, the chair group of this electric wheelchair sits part, second, first and the 3rd composition one quadric chain; Make vertical this wheels axle center of the unidirectional folding path of chair group of this electric wheelchair; So this electric wheelchair when carrying out the folding operation, need not expend more time and the physical driving wheel of disassembling these wheels, directly provides electric wheelchair folding; And this chair group and these wheels need not separate to deposit saves the space, makes chair group and wheels unification deposit effective management.

Relevant the present invention is for reaching above-mentioned purpose, and the technology that is adopted, means and other effect are enumerated embodiment at present and conjunction with figs. is elaborated.

Description of drawings

Fig. 1 is the fully collapsible invalid's chair structure side view of No. 6135222, United States Patent (USP).

Fig. 2 disassembles sketch map for the fully collapsible invalid's chair of No. 6135222, United States Patent (USP) folds.

Fig. 3 folds sketch map for the fully collapsible invalid's chair of No. 6135222, United States Patent (USP).

Fig. 4 is an electric wheelchair front elevational schematic of the present invention.

Fig. 5 is an electric wheelchair schematic side view of the present invention.

Fig. 6 takes the user mode sketch map for electric wheelchair of the present invention.

Fig. 7 carries out the folding operation schematic side view for electric wheelchair of the present invention.

Fig. 8 accomplishes the folding operation schematic side view for electric wheelchair of the present invention.

Fig. 9 is an electric wheelchair mobile operating schematic side view of the present invention.

Figure 10 carries out the chair group for electric wheelchair of the present invention and wheels are disassembled sketch map.

Figure 11 accomplishes chair group and the folding sketch map of wheels for electric wheelchair of the present invention.

Electric wheelchair 10

Chair group 11 chair framves 111

Chair frame 112 chair cushions 113

Folding frame 114

Wheels 12

Front jocket wheel 121 driving wheels 122

Anti-tip wheel 123

Chair group 20

Sit part 21 pivot framves 211

First centring point, 212 second centring points 213

Lean on part 22 pivot sheets 221

First 23 first centring point 231

Second centring point 232

Second 24 first centring point 241

242 groups of portions 243 of second centring point

Support portion 244

The 3rd 25 first centring point 251

252 groups of portions 253 of second centring point

Wheels 30

31 groups of portions 311 of front jocket wheel

32 groups of portions 321 of driving wheel

33 groups of portions 331 of anti-tip wheel

Arm-rest frame 40 control lever 41

Battery 50 is stepped on part 60

Fixing band 70 latch A

The specific embodiment

The embodiment of the invention sees also Fig. 4 to shown in Figure 11, and electric wheelchair of the present invention (seeing also shown in Figure 4) comprises a chair group 20 and wheels 30;

This chair group 20 (seeing also shown in Figure 5) comprises one and sits part 21, and lean on part 22, one first 23, second 24 and 1 the 3rd 25; Wherein, This sits part 21 is tabular, and this seat spare 21 bottom sides set firmly a pivot frame 211, and an end of these pivot frame 211 2 sides is respectively established one first centring point 212; These first centring point, 212 other one second centring points 213 of establishing in addition, this first centring point 212 and this second centring point 213 are at a distance of a specific range; It is tabular should leaning on part 22, should lean on an end of part 22 2 sides respectively to set firmly a pivot sheet 221, and these pivot sheet 221 1 ends are respectively established one first centring point 222; This first 23 2 end established one first centring point 231 and one second centring point 232 respectively; This second 24 side centre established one first centring point 241; These first centring point, 241 other one second centring points 242 of establishing in addition; This second 24 end established one group of portion 243, and the other end is established one and supported portion 244, and this first centring point 241 of second 24 articulates with this second centring point 213 of sitting part 21 pivot framves 211; Second centring point 232 of first 23 of this second 24 second centring point 242 and this articulates, and this second 24 is supported portion 244 and should whether lean on part 22 corresponding conflicts; The 3rd 25 1 ends are established one first centring point 251; These first centring point, 251 other one second centring points 252 of establishing in addition; The 3rd 25 other ends are established one group of portion 253; First centring point 231 of first 23 of the 3rd 25 first centring point 251 and this articulates, and the 3rd 25 first centring point 521 leans on first centring point 222 of part 22 pivot sheets 221 to articulate with this in addition, and the 3rd 25 second centring point 252 articulates with this first centring point 212 of sitting part 21 pivot framves 211;

Learn by above structure argumentation; This chair group 20 (seeing also shown in Figure 6) through this spare of seating 21 and this second 24 pivot joint, this second 24 articulate with the 3rd 25 with this first 23 pivot joint, this first 23 and the 3rd 25 and 21 pivot joints of this seat spare under; This chair group 20 sees through and sits part 21, forms quadric chains for first 23, second 24 and the 3rd 25; The seat spare 21 of this chair group 20 provides user to take support; The part 22 that leans on of this chair group 20 provides user to take by support, and this chair group 20 sees through this seat spare 21 will provide user comfortable sitting posture with leaning on part 22;

These wheels 30 comprise two front jocket wheels 31, two driving wheels 32 and two anti-tip wheels 33; Wherein, this front jocket wheel 31 is shaped on one group of portion 311 and these second 24 groups of portions, 243 corresponding assembling; This driving wheel 32 is shaped on one group of portion 321; This anti-tip wheel 33 is shaped on one group of portion 331; Under these anti-tip wheel 33 axle center and this driving wheel 22 axis parallels; 33 groups of portions 331 of this anti-tip wheel are connected to 32 groups of portion 321 belows of this driving wheel, and 32 groups of portion 321 tops of this driving wheel and the 3rd 25 groups of portions 253 carry out removable winding; 32 groups of portions of this driving wheel 321 are tubulose, and 32 groups of portions 321 of this driving wheel are inserted in the 3rd 25 groups of portions 253 and place the location through a latch A, and this latch A pulls out 32 groups of portions of this driving wheel 321 and the 3rd 25 groups of portions 253 are separated;

This electric wheelchair is provided with an arm-rest frame 40 in addition, a battery 50, is stepped on a part 60 and a fixing band 70; Wherein, these arm-rest frame 40 1 end groups are established a control lever 41, and the other end is mounted on the 3rd 25 first centring point, 251 tops, and these arm-rest frame 40 control lever 41 are controlled with these wheels 30 driving wheels 32 electrically connect travel directions; These battery 50 detachable pivot frame 211 bottom sides that are mounted on these chair group 20 seat parts 21, this battery 50 carries out electric power with these wheels 30 driving wheels 32 electrically connects and supplies with; This is stepped on, and part 60 is bent to be mounted on this chair group and to supply the user foot to step between 20 first 23 and these wheels 30 front jocket wheels 31; This fixing band 70 be used for this chair group 20 folding after, these fixing band 70 1 ends are organized respectively and are established this chair group 20 and sit part 21 leading sections and support portion 244 with this second 24, follow corresponding again the cohering in these fixing band 70 2 ends and keep this electric wheelchair folded state;

The above is the mutual relation position of each associated component of preferred embodiment of the present invention and the general introduction of structure thereof.

Consult Fig. 6 to shown in Figure 11 in order to clearly demonstrate flowing mode and the effect done of the present invention, please to cooperate again:

After this electric wheelchair (seeing also shown in Figure 6) provides user to take use; When desiring to carry out folding operation; Force in the seat spare 21 of this chair group 20 (please consulting Fig. 7 and shown in Figure 8 simultaneously) earlier and lean on part 22; The seat spare 21 of this chair group 20 and this second 24 pivot joint, this second 24 articulate with the 3rd 25 with this first 23 pivot joint, this first 23 and the 3rd 25 sit under part 21 pivot joints with this; This chair group 20 sees through and sits part 21, forms quadric chains for first 23, second 24 and the 3rd 25; This electric wheelchair is folded to form unidirectional folding path, makes vertical these wheels 30 driving wheels 32 axle center of folding path of this chair group 20, and the seat spare 21 that sees through fixing this chair group 20 of this fixing band 70 (seeing also shown in Figure 8) after this electric wheelchair is folding is located with leaning on part 22; This electric wheelchair under this fixing band 70 (seeing also shown in Figure 9) is fixing user can arbitrarily be towed; The group portion 321 corresponding plants of the group portion 253 of the 3rd 25 of this chair group 20 and these wheels 30 driving wheels 32 see through this latch A (please consulting Figure 10 and shown in Figure 11 simultaneously) down in addition provides assembling to use or disassembles maintenance, thereby the mobility impaired need not be expended time in and muscle power is disassembled the driving wheel 32 of wheels 30, directly provides electric wheelchair folding; Save the space relatively and reduce barrier, the user mode of handicapped person's clear space is provided.

Claims

1. folding electric wheelchair structure comprises:

One chair group is sat part, one first, one second and one the 3rd by one and is combined, and an end of this spare of seating two sides is respectively established one first centring point, establishes one second centring point by this first centring point in addition; This first two end established one first centring point and one second centring point respectively; This second side centre established one first centring point; This first centring point is other establishes one second centring point in addition, and this second end established one group of portion, and the other end is established one and supported portion; Second centring point that this first centring point of second and this are sat part articulates, and this second second centring point and this second centring point of first articulate; The 3rd end established one first centring point; Other one second centring point of establishing in addition of this first centring point; The 3rd other end established one group of portion, and the 3rd first centring point and this first centring point of first articulate, and first centring point that the 3rd second centring point and this are sat part articulates; This chair group sees through sits part, first, second and the 3rd composition one quadric chain, and this chair group is folded to form unidirectional folding path through quadric chain; And

One wheels, other establishes two front jocket wheels, two anti-tip wheels and two driving wheels, and this front jocket wheel is shaped on one group of portion and this second group portion assembling; This driving wheel is shaped on one group of portion; This anti-tip wheel is shaped on one group of portion, and this anti-tip wheel axle center is parallel with this driving wheel axle center down, and this anti-dumping wheels portion is connected to this driving wheels subordinate side; This drives wheels portion top and the 3rd group portion winding, makes the driving wheel axle center of the folding path of this chair group perpendicular to these wheels.

2. folding electric wheelchair structure according to claim 1; Wherein this chair group is established one in addition and is leaned on part; Should lean on an end of part two sides respectively to set firmly a pivot sheet, this pivot sheet one end is respectively established one first centring point, should lean on first centring point of part pivot sheet and the 3rd first centring point to articulate.

3. folding electric wheelchair structure according to claim 2, wherein;

Other establishes an arm-rest frame, and an end group is established a control lever, and the other end is mounted on the 3rd first centring point, and this arm-rest frame control lever and this wheels driving wheel electrically connect travel direction are controlled; And

Other establishes a battery, the detachable pivot frame bottom side that is mounted on this chair group seat part, and this battery and this wheels driving wheel electrically connect carry out electric power and supply with.

4. folding electric wheelchair structure according to claim 3 is wherein established one in addition and is stepped on part, and bent being mounted on supplies user foot-operated between first of this chair group and this wheels front jocket wheel.

5. based on the described folding electric wheelchair structure of claim 4, wherein establish a fixed band in addition, be consolidated in this chair group respectively and sit part leading section and keep folded state to portion with this second.