CN102860905A - Gravity-adjustable wheelchair - Google Patents
Gravity-adjustable wheelchair Download PDFInfo
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- CN102860905A CN102860905A CN201210384220XA CN201210384220A CN102860905A CN 102860905 A CN102860905 A CN 102860905A CN 201210384220X A CN201210384220X A CN 201210384220XA CN 201210384220 A CN201210384220 A CN 201210384220A CN 102860905 A CN102860905 A CN 102860905A
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Abstract
The invention relates to a gravity-adjustable wheelchair which comprises a wheelchair body and a wheel group, wherein the wheel group comprises a front wheel and a rear driving wheel, and the wheelchair body comprises a supporting unit and an adjusting unit. The supporting unit comprises a back inserting lower connection piece, an adjusting block and a lateral connection piece, wherein the back inserting lower connection piece inclines relative to the vertical direction; the adjusting block is fixedly arranged on the back inserting lower connection piece, and a row of horizontal adjusting holes or a sliding groove are/is arranged on the adjusting block; and the lateral connection piece inclines downwards relative to the horizontal direction from the front end to the rear end of the wheelchair, and one end of the lateral connection piece connected with the back inserting lower connection piece is provided with a horizontal part. The adjusting unit comprises a four-rod mechanism and a supporting wheel connected with the four-rod mechanism, wherein the four-rod mechanism and the supporting wheel are used for supporting up the wheelchair body and the rear driving wheel to enable the rear driving wheel to be off the ground when the gravity is adjusted. According to the gravity-adjustable wheelchair, the four-rod mechanism is utilized to support up the wheelchair, so that people sitting in the wheelchair can adjust the gravity of the wheelchair by themselves. In addition, the four-rod mechanism is provided with rods obliquely arranged, so that the radius of the rear driving wheel is reduced, the gravity of the wheelchair is lowered, and the structure is compact.
Description
Technical field
The present invention relates to a kind of wheelchair, particularly a kind of wheelchair that can change the radius of gyration and can allow occupant's Self-adjustment wheelchair center of gravity.
Background technology
The wheelchair that has had capable of adjusting center of gravity in the prior art, a kind of wheelchair of capable of adjusting center of gravity is disclosed such as Chinese patent CN100337612C, described wheelchair has a upper frame and a underframe, wherein, described underframe part is connected with described wheels, has a round at the cross bar of lower frame portion, and it is used for being connected with described wheel shaft, the dismounting wheel shaft also is connected in the different holes, realizes the adjustment in the horizontal direction of described wheelchair center of gravity.But described Wheelchair structure is very complicated, and it is parallel with backrest that the back of the body on it is inserted connector, and vertical with handrail, therefore the center deviation of described wheels to the wheelchair rear, is the balance of maintenance wheelchair, the size of wheel is essential enough large, cause like this overall volume of wheelchair excessive; And when adjusting center of gravity, need by other people wheel removal to be installed again, extremely inconvenient, thereby the controllability of centre of gravity adjustment is poor.
In view of defects, creator of the present invention has obtained this creation finally through long research and practice.
Summary of the invention
The object of the present invention is to provide a kind of wheelchair of capable of adjusting center of gravity, in order to overcome defects.
For achieving the above object, the technical solution used in the present invention is to provide a kind of wheelchair of capable of adjusting center of gravity, comprise wheelchair body and wheels, described wheels comprise front-wheel and rear drive sprocket, described wheelchair body comprises: support unit and adjustment unit, wherein, described support unit is in order to connecting chair and wheels, and it comprises:
The back of the body is inserted lower connector, and it is positioned at under-seat, and its relative vertical direction tilts;
Adjustment block, it is fixedly installed on the described back of the body and inserts on the lower connector, which is provided with a row of horizontal adjusting hole or a sliding tray, in order to the horizontal level of the wheel shaft of adjusting described rear drive sprocket;
The side connector, it is downward-sloping to rear end relative level direction from the wheelchair front end, and the connector link has a horizontal component under inserting with the described back of the body;
Described adjustment unit, it comprises: a four-bar mechanism and a coupled support wheel in order to prop described wheelchair body and rear drive sprocket when adjusting center of gravity, make described rear drive sprocket break away from ground.
Better, described four-bar mechanism comprises:
The boss that connecting plate, itself and the described back of the body are inserted on the lower connector is hinged, which is provided with two pin joints;
Rocking bar, its two ends are connected on two pin joints on the described connecting plate;
Upper connecting rod, the one end is connected with a pin joint on the described connecting plate, and the other end is connected with described support wheel;
Lower link, one end and described support unit are hinged, the other end and described upper rod hinge connection.
Better, described support unit also comprises reinforced company's fitting, and the one end is connected with described adjustment block, and the other end is connected with described side connector.
Better, described support unit also comprises:
The back of the body is plugged connector, and itself and vertical direction have a gradient, and is connected as a single entity with the slotting lower connector of the described back of the body, has a horizontal ends;
The handrail connector, it is plugged connector by connecting plate and the described back of the body and links together, and the one end is provided with the hole that vertical direction is arranged, and can adjust the position at vertical direction;
The shank connector, the one end is connected with described side connector, and the junction is provided with fillet, and it vertically is installed in described wheelchair body front end;
Bottom linker, it is connected with slotting lower connector one end of the described back of the body, and level is installed on the lower end of described wheelchair body.
Better, described connecting plate comprises: a triangular plate, which is provided with front hole and metapore, and it is connected with described handrail connector.
Better, described adjustment unit also comprises:
Joystick drives for the occupant;
Handle and connecting rod, it connects respectively described joystick and described connecting plate, in order to transmit the motion of described joystick.
Better, described adjustment unit also comprises:
Pedal, it is positioned at described wheelchair body rear end, and it is connected with described rocking bar, uses the motion that drives described four-bar mechanism for the wheelchair paraprofessional personnel.
Better, also comprise a quick detach braking mechanism, it is connected on the described support unit, brakes when being in different center of gravity state at wheelchair.
Better, the quick detach axle sleeve is installed on the wheel shaft of described rear drive sprocket.
Better, also comprising a spring, the one end is connected on the described connecting plate, and the other end is connected on the described lower link.
Compared with the prior art, beneficial effect of the present invention is, turns forward to carry on the back by setting and inserts lower connector and downward-sloping side connector, reduced the center of gravity of wheelchair, reduced the radius of gyration of rear drive sprocket, more laborsaving when making the wheelchair revolution, requisite space is less; Increase adjustment block, guarantee that the center of gravity of wheelchair can be adjusted in the horizontal direction; One adjustment unit also is set simultaneously, comprises four-bar mechanism and support wheel, the wheelchair occupant can oneself finish the process of adjusting center of gravity, makes wheelchair reach the effect that is fit to individual variation.
Description of drawings
Fig. 1 is that the wheelchair of capable of adjusting center of gravity of the present invention is faced structural representation when normally travelling;
Fig. 2 be capable of adjusting center of gravity of the present invention the wheelchair support unit face structural representation;
Fig. 3 is that the wheelchair armrest connector of capable of adjusting center of gravity of the present invention is plugged the structural representation of facing that connector is connected with the back of the body;
Fig. 4 be capable of adjusting center of gravity of the present invention the wheelchair adjustment unit face structural representation;
Fig. 5 is that the wheelchair of capable of adjusting center of gravity of the present invention is faced structural representation when adjusting center of gravity.
The specific embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1ly, face structural representation when normally travelling for the wheelchair of capable of adjusting center of gravity of the present invention, it comprises wheelchair body and wheels, and described wheelchair body comprises support unit and adjustment unit.In traditional push chairs, wheels comprise rear drive sprocket 1 and front-wheel 4, also comprise in the present embodiment the support wheel 57 in the adjustment unit, when wheelchair normally travels, at regular intervals between described support wheel 57 and the ground 111, only have when wheelchair need to be adjusted center of gravity, described support wheel 57 just can contact to earth.Described support unit comprises many support connecting pieces that form the wheelchair body, wherein, it is what turn forward that the back of the body under side connector 41 is inserted lower connector 12 parts, the wheel shaft of described rear drive sprocket 1 is installed in the described back of the body and inserts on the lower connector 12, which is provided with for the adjustment block 2 of adjusting center of gravity, and described side connector 41 is downward-sloping from front to back, to reach the purpose that subtracts small-wheel-diameter.Described adjustment unit comprises a four-bar mechanism, described four-bar mechanism is connected with described support wheel 57, in order to rise and the landing that drives described support wheel 57, the occupant can operate the handle 51 that links to each other with four-bar mechanism and drive described support wheel 57, go-cart person can step on the pedal 7 that is connected with four-bar mechanism and drive described support wheel 57, before adjusting the wheelchair center of gravity, to be braked by quick detach first and 6 make the wheelchair stop motion.
See also shown in Figure 2, it is the structural representation of facing of the support unit of the wheelchair of capable of adjusting center of gravity of the present invention, in existing wheelchair, the back of the body is inserted connector and is generally a slightly straight connector of gradient, and in the present invention the back of the body insert connector comprise relative vertical direction slightly the back of the body of gradient plug connector 11 and the back of the body that turns forward is inserted lower connector 12.Identical with the traditional push chairs structure, there is a horizontal ends top that the described back of the body is plugged connector 11, is used for as go-cart person provides handrail, plugs the in addition seat connection 49 that connector 11 is connected with the described back of the body.The employed handrail connector 3 of occupant is a right-angle connector, wherein an end has row's radial direction through hole 31, please in conjunction with shown in Figure 3, it plugs the structural representation of facing that connector is connected for the wheelchair armrest connector of capable of adjusting center of gravity of the present invention with carrying on the back, described handrail connector 3 is plugged connector 11 with the described back of the body and is linked together by two braces, wherein, triangular in shape with the brace 32 that described handrail connector 3 links to each other, it is wrapped up in and is attached on the described handrail connector 3, front hole 34 and metapore 35 are arranged on it, and be connected with corresponding radial hole 31 on the described handrail connector 3 by described metapore 35, another connecting plate 33 is fixed on the described back of the body and plugs on the connector 11, the described back of the body is plugged connector 11 and is provided with corresponding hole, in order to be connected with described connecting plate 33.Owing to having a plurality of radial holes 31 on the described handrail connector 3, therefore but described leg-of-mutton brace 32 in the vertical directions are connected from different radial hole 31, to adjust described handrail connector 3 in the position of vertical direction, be convenient to after adjusting the wheelchair center of gravity, still can make the wheelchair occupant keep comfortable posture.
Please continue to consult shown in Figure 2, the described back of the body that is centered close to of described rear drive sprocket 1 is inserted on the lower connector 12, the described like this back of the body is inserted lower connector 12 and is turned forward, the center of rear drive sprocket 1 also moves forward thereupon, the distance of the centre distance pedal of rear drive sprocket 1 is dwindled, the radius of rear drive sprocket 1 also diminishes, and the overall volume of wheelchair also will be dwindled.Thereby the present invention can reduce the radius of gyration of wheelchair, makes wheelchair when revolution more laborsaving, and requisite space is less, can satisfy the demands in occasion widely.
In order on inherent structure, still to adjust center of gravity, the appropriate position of inserting lower connector 12 at the described back of the body is provided with an adjustment block 2, it is one-body molded that itself and the described back of the body are inserted lower connector 12, has the adjusting hole 21 that a row of horizontal direction is arranged in described adjustment block 2, its diameter is set according to the wheel shaft external diameter of rear drive sprocket 1, and its pitch-row also can be set according to the scope that actual center gravity is adjusted.In the adjusting hole 21 of described adjustment block 2 the quick detach axle sleeve is installed, it supports the wheel shaft of described rear drive sprocket 1, when needing to adjust center of gravity, can easily described wheel shaft be taken out and be installed in the suitable adjusting hole 21.
On the above-mentioned adjustment block 2 one row adjusting hole 21 can also be the sliding tray of horizontal direction, and the wheel shaft of described rear drive sprocket 1 can slide in described sliding tray, and supports fixing with the quick detach axle sleeve.Because the rider's body situation is different, thereby the present invention can adjust according to occupant self needs the position of wheelchair center of gravity, wheelchair is reached be fit to individual difference.
Please continue to consult shown in Figure 2, the side connector 41 of existing wheelchair is horizontal straight connector, but in the present invention, described side connector 41 downward-sloping certain angles, it begins downward-sloping from front end, but plugging the position that connector 11 is connected with the described back of the body is horizontal connector 42, this design so that the center of gravity of wheelchair to moving down, inserting lower connector 12 with the back of the body of described inclination adapts, insert at the described back of the body under the combined effect of lower connector 12 and side connector 41, wheelchair center of gravity in the vertical direction descends, and the radius of gyration of described rear drive sprocket 1 reduces, and Wheelchair structure is compacter.
In order to strengthen the intensity of wheelchair support unit, described adjustment block 2 and and the horizontal connector 42 that is integrated of side connector 41 between also be provided with reinforced company's fitting 23, insert lower connector 12 parts and horizontal connector 42 compositions one triangular structure by the back of the body of described reinforced company fitting 23, adjustment block 2 tops, this triangular structure is so that the intensity of wheelchair and stability increase.In addition, described side connector 41 and the described back of the body are plugged and also are connected with an arc connector 48 between the connector 11, and it is identical that it acts on described reinforced company fitting 23.
In embodiments of the present invention, described shank connector 44 is vertically arranged, compares with the existing wheelchair shank connector that is obliquely installed, and this structure is compacter.Described shank connector 44 and described side connector 41 are one-body molded, and a larger arc fillet 43 is arranged in the junction.End portion at described shank connector 44 has an intermediate connector 45, and it is slightly downward-sloping, and its other end is connected with vertical universal wheel case connector 46, and described universal wheel case connector 46 is connected with front-wheel 4.Described universal wheel case connector 46 other ends are connected with the bottom linker 47 of a level, and the described back of the body is inserted lower connector 12 and is connected with described bottom linker 47.The above-mentioned back of the body is inserted lower connector 12, side connector 41, shank connector 44, intermediate connector 45, universal wheel case connector 46 and bottom linker 47 and is formed an enclosed construction, in order to support described seat and rear drive sprocket 1.
Above-mentioned support unit symmetrical configuration is arranged, placement seat chair in the middle of it, and the support bar 40 that also has intersection to install between two symmetrical structures is in order to increase the intensity of Wheelchair structure.
Please see also shown in Figure 4, it is the structural representation of facing of the wheelchair adjustment unit of capable of adjusting center of gravity of the present invention, described adjustment unit comprises a joystick 51, handle and connecting rod 52, a four-bar mechanism, a pedal 7 and a support wheel 57, described joystick 51 is positioned at the palp scope of occupant and gets final product, drive for the occupant, described joystick 51 is fixedly connected with handle and connecting rod 52, described handle and connecting rod 52 is comprised of two bars of Joint, in order to transmit the motion of described joystick, change simultaneously the direction that the occupant applies power.What be connected with described handle and connecting rod 52 is a plate 53, described connecting plate 53 and a projection 13 are point articulated at B, described projection 13 is fixed on the described back of the body and inserts on the lower connector 12, one rocking bar, 54 1 ends and described connecting plate 53 are point articulated at B, the other end and described connecting plate 53 are point articulated at A, thereby described rocking bar 54 is connected as a single entity with connecting plate 53, has identical kinestate.Be provided with a projection 58 at described bottom linker 47, the point articulated lower link 56 of C on it, the other end of described lower link 56 and described support wheel 57 are connected as a single entity, and also have connecting rod 55 at pin joint A place, and its other end and described lower link 56 are hinged at the D place.Mechanism between described like this rocking bar 54, upper connecting rod 55, lower link 56 and pin joint B and the C forms a four-bar mechanism, and wherein, pin joint B and C are fixing point, therefore the mechanism between pin joint B and the C is frame.
In addition, between described connecting plate 53 and lower link 56, also be provided with a spring 59, keeping described adjusting device in the position that wheelchair normally travels, also have a pedal 7 with A on the rocking bar 54 is connected with the B pin joint, use the motion that drives described four-bar mechanism for the wheelchair paraprofessional personnel.The motion of described four-bar mechanism, described support wheel 57 is moved up and down, described wheelchair is propped, make described rear drive sprocket 1 liftoff, the occupant controlled oneself and pulled down voluntarily corresponding described rear drive sprocket 1 this moment, then in the center of gravity of adjusting described wheelchair according to adjustment block 2.
In order effectively to stop wheel chair sport at different position of centre of gravitys, the present invention also provides a quick detach braking mechanism 6, and please in conjunction with shown in Figure 1, it can adjust the position easily and fast according to the position of rear drive sprocket, realizes brake function.Under the combined effect of adjusting device and quick detach brake, the wheelchair occupant can be own selection replacing opportunity, when needs are adjusted, can oneself finish the centre of gravity adjustment process.
See also shown in Figure 1ly, face structural representation when it normally travels for the wheelchair of capable of adjusting center of gravity of the present invention, when wheelchair normally used, described joystick 51, four-bar mechanism and support wheel 57 positions were as shown in the figure.Please in conjunction with shown in Figure 4, when needs are adjusted the wheelchair center of gravity, make described wheelchair stop motion by quick detach brake 6, the occupant upwards lifts joystick 51 or by the downward press foot pedal 7 of paraprofessional personnel, described handle and connecting rod 52 and connecting plate 53 rotate up around pin joint B, and described rocking bar 54 is rotated down around pin joint B, and described upper connecting rod 55 moves downward around pin joint A, described lower link 56 moves downward around pin joint C, therefore described support wheel 57 also moves downward with lower link 56.See also shown in Figure 5, when adjusting center of gravity for wheelchair of capable of adjusting center of gravity of the present invention, it faces structural representation, when pin joint A moves downward the dead-centre position of crossing four-bar mechanism, described support wheel 57 contacts with ground 111 and described wheelchair is upwards propped, thereby produces certain distance between described rear drive sprocket 1 and the ground 111.Owing in the described adjusting hole 21 the quick detach axle sleeve being installed, the occupant can adjust the position of wheel front and back center of gravity easily.
After centre of gravity adjustment is finished, to pressing down described joystick 51 or promoting described pedal 7, described rocking bar 54 upwards rotates, and described upper connecting rod 55 upwards rotates around pin joint A, and under the pulling force effect of spring 59, described lower link 56 upwards rotates around the C point, thereby described support wheel 57 moves upward, until it breaks away from and the contacting of ground 111, at this moment, described rear drive sprocket 1 contacts with ground 111 again, and described support wheel 57 is placed on suitable location, and then wheelchair can travel again.Simultaneously, adjust as required the position of described quick detach brake 6.
Need to prove, the support connecting piece of wheelchair of the present invention can be chosen as hollow aluminum pipe, therefore the very light in weight of whole wheelchair, described support wheel can be propped described wheelchair, and the present invention adopts the back of the body that leans forward to insert lower connector 12 and downward-sloping side connector 41, so that the structure of wheelchair is compacter, the radius of driving wheel 1 reduces, and the wheelchair overall weight further alleviates, and above-mentioned functions is achieved.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limits, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. the wheelchair of a capable of adjusting center of gravity comprises wheelchair body and wheels, and described wheels comprise front-wheel and rear drive sprocket, it is characterized in that, described wheelchair body comprises: support unit and adjustment unit, wherein, described support unit is in order to connecting chair and wheels, and it comprises:
The back of the body is inserted lower connector, and it is positioned at under-seat, and its relative vertical direction tilts;
Adjustment block, it is fixedly installed on the described back of the body and inserts on the lower connector, which is provided with a row of horizontal adjusting hole or a sliding tray, in order to the horizontal level of the wheel shaft of adjusting described rear drive sprocket;
The side connector, it is downward-sloping to rear end relative level direction from the wheelchair front end, and the connector link has a horizontal component under inserting with the described back of the body;
Described adjustment unit, it comprises: a four-bar mechanism and a coupled support wheel in order to prop described wheelchair body and rear drive sprocket when adjusting center of gravity, make described rear drive sprocket break away from ground.
2. the wheelchair of capable of adjusting center of gravity according to claim 1 is characterized in that, described four-bar mechanism comprises:
The boss that connecting plate, itself and the described back of the body are inserted on the lower connector is hinged, which is provided with two pin joints;
Rocking bar, its two ends are connected on two pin joints on the described connecting plate;
Upper connecting rod, the one end is connected with a pin joint on the described connecting plate, and the other end is connected with described support wheel;
Lower link, one end and described support unit are hinged, the other end and described upper rod hinge connection.
3. the wheelchair of capable of adjusting center of gravity according to claim 1 is characterized in that, described support unit also comprises reinforced company's fitting, and the one end is connected with described adjustment block, and the other end is connected with described side connector.
4. the wheelchair of capable of adjusting center of gravity according to claim 2 is characterized in that, described support unit also comprises:
The back of the body is plugged connector, and itself and vertical direction have a gradient, and is connected as a single entity with the slotting lower connector of the described back of the body, has a horizontal ends;
The handrail connector, it is plugged connector by connecting plate and the described back of the body and links together, and the one end is provided with the hole that vertical direction is arranged, and can adjust the position at vertical direction;
The shank connector, the one end is connected with described side connector, and the junction is provided with fillet, and it vertically is installed in described wheelchair body front end;
Bottom linker, it is connected with slotting lower connector one end of the described back of the body, and level is installed on the lower end of described wheelchair body.
5. the wheelchair of capable of adjusting center of gravity according to claim 4 is characterized in that, described connecting plate comprises: a triangular plate, which is provided with front hole and metapore, and it is connected with described handrail connector.
6. according to claim 2 or the wheelchair of 4 described capable of adjusting center of gravities, it is characterized in that, described adjustment unit also comprises:
Joystick drives for the occupant;
Handle and connecting rod, it connects respectively described joystick and described connecting plate, in order to transmit the motion of described joystick.
7. according to claim 2 or the wheelchair of 4 described capable of adjusting center of gravities, it is characterized in that, described adjustment unit also comprises:
Pedal, it is positioned at described wheelchair body rear end, and it is connected with described rocking bar, uses the motion that drives described four-bar mechanism for the wheelchair paraprofessional personnel.
8. the wheelchair of capable of adjusting center of gravity according to claim 6 is characterized in that, also comprises a quick detach braking mechanism, and it is connected on the described support unit, brakes when being in different center of gravity state at wheelchair.
9. the wheelchair of capable of adjusting center of gravity according to claim 1 is characterized in that, the quick detach axle sleeve is installed on the wheel shaft of described rear drive sprocket.
10. according to claim 2 or the wheelchair of 4 described capable of adjusting center of gravities, it is characterized in that, also comprise a spring, the one end is connected on the described connecting plate, and the other end is connected on the described lower link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210384220XA CN102860905A (en) | 2012-10-12 | 2012-10-12 | Gravity-adjustable wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210384220XA CN102860905A (en) | 2012-10-12 | 2012-10-12 | Gravity-adjustable wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102860905A true CN102860905A (en) | 2013-01-09 |
Family
ID=47440225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210384220XA Pending CN102860905A (en) | 2012-10-12 | 2012-10-12 | Gravity-adjustable wheelchair |
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| Country | Link |
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| CN (1) | CN102860905A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104736119A (en) * | 2013-09-17 | 2015-06-24 | 松下知识产权经营株式会社 | Wheelchair and combination bed |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0268960A2 (en) * | 1986-11-28 | 1988-06-01 | MEYRA WILHELM MEYER GmbH & Co KG | Wheel chair for the sick |
| EP0702945A1 (en) * | 1994-09-13 | 1996-03-27 | Ortopedia Gmbh | Wheelchair with adjustable frame |
| JP2001149414A (en) * | 1999-09-17 | 2001-06-05 | Gentarou Ootani | Wheelchair in which armrest and wheel are adjusted before and behind |
| CN2539499Y (en) * | 2002-04-23 | 2003-03-12 | 汉翔航空工业股份有限公司 | All function modular assembling device for wheelchair |
| CN2680235Y (en) * | 2004-01-17 | 2005-02-23 | 刘占河 | Hand-operated wheelchair for going upstairs |
| JP5108412B2 (en) * | 2007-08-09 | 2012-12-26 | 株式会社松永製作所 | Length adjustment member for wheelchair seat |
| CN203042673U (en) * | 2012-10-12 | 2013-07-10 | 常州中进医疗器材有限公司 | Gravity-center-adjustable wheel chair |
-
2012
- 2012-10-12 CN CN201210384220XA patent/CN102860905A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0268960A2 (en) * | 1986-11-28 | 1988-06-01 | MEYRA WILHELM MEYER GmbH & Co KG | Wheel chair for the sick |
| EP0702945A1 (en) * | 1994-09-13 | 1996-03-27 | Ortopedia Gmbh | Wheelchair with adjustable frame |
| JP2001149414A (en) * | 1999-09-17 | 2001-06-05 | Gentarou Ootani | Wheelchair in which armrest and wheel are adjusted before and behind |
| CN2539499Y (en) * | 2002-04-23 | 2003-03-12 | 汉翔航空工业股份有限公司 | All function modular assembling device for wheelchair |
| CN2680235Y (en) * | 2004-01-17 | 2005-02-23 | 刘占河 | Hand-operated wheelchair for going upstairs |
| JP5108412B2 (en) * | 2007-08-09 | 2012-12-26 | 株式会社松永製作所 | Length adjustment member for wheelchair seat |
| CN203042673U (en) * | 2012-10-12 | 2013-07-10 | 常州中进医疗器材有限公司 | Gravity-center-adjustable wheel chair |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104736119A (en) * | 2013-09-17 | 2015-06-24 | 松下知识产权经营株式会社 | Wheelchair and combination bed |
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