CN102440874B

CN102440874B - Power driving device for manual wheelchair

Info

Publication number: CN102440874B
Application number: CN 201010509233
Authority: CN
Inventors: 薛博文; 吴永成; 谢幼安; 黄文辉
Original assignee: Metal Industries Research and Development Centre
Current assignee: Metal Industries Research and Development Centre
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2013-09-11
Anticipated expiration: 2030-10-14
Also published as: CN102440874A

Abstract

The invention discloses a power driving device for a manual wheelchair. A lateral edge of a frame of the wheelchair is provided with a seat which can swing for displacement; the seat is provided with a drum set which can be driven by a driving source to rotate; the drum set can be made to swing for displacement along with the seat to be joined to a main wheel of the wheelchair so as to perform transmission; the seat is additionally connected with an engaging and disengaging mechanism to control the seat to do reciprocal swing displacement and drive the drum set to be joined to or separated from the main wheel of the wheelchair so as to switch a driving mode of the wheelchair; and thus, the driving mode of the wheelchair is switched by using the engaging and disengaging mechanism, power can be provided to drive the manual wheelchair, easiness in operation and convenience in folding of the manual wheelchair can be guaranteed, and further, the practical benefit for convenience in use of the wheelchair can be greatly improved.

Description

The Power Drive Unit of manual wheelchair

Technical field

The present invention relates to a kind of wheelchair, particularly the Power Drive Unit of manual wheelchair.

Background technology

For handicapped people such as some patients, old person or limbs disableds, wheelchair is a kind of quite convenient, and indispensable walking-replacing tool; In the streets existing wheelchair can be divided into two kinds of manual wheelchair and electric wheelchairs haply, in general, manual wheelchair has simple in structure and is easy to amount to receipts whole advantage, yet its type of drive is by the hand push wheel rim of user with both hands application of force switching wheelchair main wheel, and then the main wheel of wheelchair is rotated, can drive wheelchair advances, and should be in the manually driven mode, for handicapped user, real is quite to require great effort; Electric wheelchair then is to utilize electro-motor that power is provided in addition, user can be controlled wheelchair direct of travel and speed by control device, yet, the structure of electric wheelchair is quite complicated, and can't amount to receive as work as the manual wheelchair and put in order, when power drain, can't use in addition, therefore, though electric wheelchair can provide comparatively labour-saving type of drive of user, it is simple in structure and be easy to receive whole convenience to have lost manual wheelchair.

For solving above-mentioned manual wheelchair and the electric wheelchair scarce fraud on using, namely there is the dealer to make a kind of hands of power-jdriven gear, electronic mixing wheelchair of on manual wheelchair, installing additional; See also Fig. 1, shown in Figure 2, it is No. 095119014 " auxiliary electric wheelchair device of tool draw-in and draw-off function " patent of invention case of TaiWan, China application, it includes combining unit 10, turn to divide a word with a hyphen at the end of a line unit 11 and electric power that unit 12 is provided, this combining unit 10 is provided with connecting base group 101 and cross bar group 102, for being assembled on two bottom bars 211 of wheelchair 20 chair framves 21; This turns to the unit 11 of dividing a word with a hyphen at the end of a line to be arranged in this connecting base group 101, it is provided with the action bars group 111 that can fold and rotate, the bottom of this action bars group 111 arranges electronic wheels 112, and binding is provided with trace group 113, so that this action bars group 111 and electronic wheels 112 can move between use location and non-use position; Provide unit 12 to provide with this electric power in addition and drive the electric power of these electronic wheels 112 rotations, and advance with the power drive wheelchair; When not using electric device, can electronic wheels 112 are above the ground level with turning to action bars group 111 and the electronic wheels 112 of the unit 11 of dividing a word with a hyphen at the end of a line to fold in addition, user namely can be passed wheelchair 20 by both hands, and conversion drives wheelchair with manpower; Yet, though but these electric device Wheelchairs Available 20 conversion with power or manpower mode, still have following scarce fraud in using:

This electric device is assembled on two bottom bars 211 of wheelchair 20 chair framves 21 with connecting base group 101 and the cross bar group 103 of combining unit 10, not only structure and dismounting are quite complicated for they, and after being assembled, the chair frame 21 of this wheelchair 20 namely can't be done folding, and then influences manual wheelchair 20 and be easy to receive whole convenience.

This electric device can will turn to action bars group 111 and the electronic wheels 112 of the unit 11 of dividing a word with a hyphen at the end of a line to fold, these wheelchair 20 conversion are driven with manpower, because this action bars group 111 and electronic wheels 112 only collapse in the place, front end below of wheelchair 20, therefore, still can hinder the action of the upper and lower wheelchair 20 of user, and cause the inconvenience in the use.

This wheelchair 20 is when driving, if during the pavement roughness of passing through, two front-wheels 212 that wheelchair 20 very easily takes place touch ground, and turns to the electronic wheels 112 of the unit 11 of dividing a word with a hyphen at the end of a line not touch the situation on ground, causes to drive the awkward situation of advancing.

In view of this, the inventor then is engaged in research and development and the making experience of relevant industries for many years with it, at the present problem further investigation that faces, through the research of long-term endeavour with study, grind the Power Drive Unit of creating a kind of manual wheelchair eventually, and to improve the scarce fraud of existing structure, this is design aim of the present invention.

Summary of the invention

The invention provides a kind of Power Drive Unit of manual wheelchair, solve the structure that existing structure exists and dismounting is quite complicated, problem such as inconvenience in the use.

For achieving the above object, the technical solution used in the present invention is:

A kind of Power Drive Unit of manual wheelchair, this wheelchair is provided with support body, rear end two sides of this support body are provided with main wheel, the front end of this support body is then installed the deflecting roller that can do the rotation start, corresponding described these main wheel places respectively install the brake crank that can Gong pull at this support body, the corresponding main wheel setting of this Power Drive Unit; It is characterized in that: this Power Drive Unit includes:

Pedestal: be installed in the support body side of wheelchair, and can do the swing displacement of first direction and second direction;

Cylinder group: be hubbed at pedestal, and can do the swing displacement that first direction engages with the wheelchair main wheel along with pedestal, and do the swing displacement that second direction is separated with the wheelchair main wheel;

Drive source: be linked to cylinder group, for groups of drive rolls rotation start;

Clutch: be linked between the brake crank and pedestal of wheelchair, and control the swing displacement that pedestal is made first direction and second direction with this brake crank, for the type of drive of switching wheelchair.

Wherein: this support body be can folding support body.

Wherein: this pedestal is provided with the holding part with opening, for the cylinder group that is pivoted.

Wherein: this cylinder group locates to be pivoted at least one cylinder in the holding part top of pedestal.

Wherein: at least one cylinder of this cylinder group is provided with a V-shaped annular groove at outer ring surface.

Wherein: this at least one cylinder is arranged with belt, for increasing the contact area that engages transmission with wheelchair master's wheel.

Wherein: this pedestal is in the intrinsic block set of a side chain, and for the installing drive source, this drive source is provided with an output shaft, is provided with serial verb construction between at least one cylinder of this output shaft and cylinder group, to drive this at least one cylinder rotation start.

Wherein: this serial verb construction is installed with driven wheel at the output shaft of this drive source, a side of this at least one cylinder be installed with can with a be meshing with each other travelling gear of transmission of this driven wheel.

Wherein: locking one connecting block on this block set, the top of this connecting block also is hubbed on the support body side of wheelchair with pivot, so that this pedestal can be done the swing displacement of first direction and second direction along pivot.

Wherein: this clutch links the connecting rod that is pivoted between the bottom of brake crank and connecting block, so that this brake crank drives the reciprocally swinging displacement that pedestal is made first direction and second direction.

Compared with prior art, the beneficial effect that has of the present invention is:

The invention provides a kind of Power Drive Unit of manual wheelchair, its support body side in wheelchair is equiped with the pedestal that can swing displacement, and be provided with the cylinder group that can be driven rotation by drive source in this pedestal, and make this cylinder group swing displacement along with pedestal, and engage with the main wheel of wheelchair, to carry out transmission, link in this pedestal in addition and be provided with a clutch, do reciprocal swing displacement to control this pedestal, and the main wheel that drives this cylinder group and wheelchair engages or separates, for the type of drive of switching wheelchair; So, utilize this clutch, user can be easy to switch with power or manpower and drive manual wheelchair, and reaches the practical purpose that significantly promotes the wheelchair ease of use.

The invention provides a kind of Power Drive Unit of manual wheelchair, wherein, this pedestal, cylinder group and clutch are installed in the support body side of wheelchair, and directly engage transmission with the main wheel of wheelchair or separate with the cylinder group that this clutch is controlled this pedestal, for the type of drive of switching wheelchair, and can possess the manual wheelchair easy operating and receive whole convenience, and then reach the practical purpose that significantly promotes the wheelchair ease of use.

The invention provides a kind of Power Drive Unit of manual wheelchair, wherein, this pedestal, cylinder group and clutch are installed in the support body side of wheelchair, and make user when upper and lower wheelchair, can do not hindered, and be reached the practical purpose that significantly promotes the wheelchair ease of use.

The invention provides a kind of Power Drive Unit of manual wheelchair, wherein, this pedestal, cylinder group and clutch are installed in the support body side of wheelchair, and the cylinder group of controlling this pedestal with this clutch directly engages transmission with the main wheel of wheelchair, and the main wheel of wheelchair is rotated, advance to drive wheelchair, and can reach the practical purpose of guaranteeing the power transmission.

Description of drawings

Fig. 1 is the use sketch map () of No. 095119014 patent case of TaiWan, China application;

Fig. 2 is the use sketch map (two) of No. 095119014 patent case of TaiWan, China application;

Fig. 3 is the combination sketch map that the present invention is combined with manual wheelchair;

Fig. 4 is structural representation of the present invention (one);

Fig. 5 is structural representation of the present invention (two);

Fig. 6 is that the present invention is in switching to power-actuated use sketch map ();

Fig. 7 is that the present invention is in switching to power-actuated use sketch map (two);

Fig. 8 is that the present invention uses sketch map in switching to manually driven;

Fig. 9 is the use sketch map of the present invention when brake;

Figure 10 is the sketch map of the present invention when receipts are put in order wheelchair;

Figure 11 is the structural representation () of another embodiment of the present invention;

Figure 12 is the structural representation (two) of another embodiment of the present invention.

Description of reference numerals: 10-combining unit; 101-connecting base group 102-cross bar group; 11-turns to the unit of dividing a word with a hyphen at the end of a line; 111-action bars group; The electronic wheels of 112-; 113-trace group; 12-electric power provides the unit; The 20-wheelchair; 21-chair frame; The 211-bottom bar; The 30-manual wheelchair; The 31-support body; The 32-main wheel; 321-hands wheel; The 33-deflecting roller; The 34-crank that brakes; The 40-Power Drive Unit; The 41-pedestal; The 411-holding part; The 412-opening; The 413-block set; 42-first cylinder; 421-first annular groove; 422-first travelling gear; The 43-second tin roller; 431-second annular groove; 432-second travelling gear; The 44-belt; The 45-electro-motor; The 451-output shaft; The 452-driven wheel; The 46-connecting block; The 461-pivot; The 47-connecting rod; The 50-manual wheelchair; The 51-support body; The 52-main wheel; 521-hands wheel; The 54-crank that brakes; The 60-Power Drive Unit; The 61-pedestal; The 611-holding part; The 612-opening; The 613-block set; The 62-cylinder; The 621-annular groove; The 622-travelling gear; The 64-belt; The 65-electro-motor; The 651-output shaft; The 652-driven wheel; The 66-connecting block; The 661-pivot; The 67-connecting rod.

The specific embodiment

For making your juror do further to understand to the present invention, lift a preferred embodiment now, and cooperate graphic detailed description as back:

See also Fig. 3, Fig. 4, shown in Figure 5, the Power Drive Unit of manual wheelchair of the present invention, its two sides in general manual wheelchair 30 are equiped with Power Drive Unit 40 respectively; Wherein, this wheelchair 30 is provided with foldable support body 31, the two side places, rear end of this support body 31 are pivoted with the main wheel 32 of tool handwheel 321 respectively, front end two side places then install the deflecting roller 33 that can do the rotation start respectively, and install the brake crank 34 that can forward and backwardly pull respectively in the appropriate position of support body 31 corresponding two main wheels, 32 wheel faces; This Power Drive Unit 40 consists predominantly of pedestal 41, cylinder group, drive source and clutch; This pedestal 41 is provided with the holding part 411 with opening 412, and is pivoted in the holding part 411 of this pedestal 41 for the cylinder group that engages transmission main wheel 32, and this cylinder group is pivoted with at least one cylinder at the holding part 411 of pedestal 41; In present embodiment, this cylinder group locates to be pivoted with first cylinder 42 above the holding part 411 of pedestal 41, place, holding part 411 belows then is pivoted with second tin roller 43, preferably, the outer ring surface of this first cylinder 42 is provided with the first V-shaped annular groove 421, the outer ring surface of this second tin roller 43 is provided with the second V-shaped annular groove 431, and this first and second cylinder 42, first and second annular groove 421,431 of 43 winding one belt 44 again in addition is to increase contact area or the frictional force that engages transmission with main wheel 32; First cylinder 42 of this cylinder group and second tin roller 43 link this drive source in addition, for first cylinder 42 and second tin roller 43 rotations of groups of drive rolls; In present embodiment, this pedestal 41 is in the intrinsic block set 413 of a side chain, can be the drive source of electro-motor 45 for installing one, this electro-motor 45 also is provided with and is extended through first, two

cylinders

42,43 output shaft 451, and the output shaft 451 and first of this electro-motor 45, two

cylinders

42,43 bindings are provided with a serial verb construction, with drive this first, two

cylinders

42,43 rotation starts, wherein, this serial verb construction is installed with driven wheel 452 on the output shaft 451 of electro-motor 45, one side of this first cylinder 42 be installed with can with these driven wheel 452 intermeshing first travelling gears 422, one side of this second tin roller 43 then is installed with also and these driven wheel 452 intermeshing second travelling gears 432, and drive first travelling gear 422 of first cylinder 42 and second travelling gear 432 of second tin roller 43 simultaneously with the driven wheel 452 of this electro-motor 45, and then drive first cylinder 42 and second tin roller 43 past equidirectional rotation starts; A connecting block 46 in addition locks on this block set 413, the top of this connecting block 46 also is hubbed at support body 31 sides of wheelchair 30 with pivot 461, so that this pedestal 41 can be done the swing displacement of first direction and second direction, and make first cylinder 42 of this cylinder group and the swing displacement that second tin roller 43 can be made first direction along with pedestal 41, and engage with the main wheel 32 of wheelchair 30, other makes first cylinder 42 of this cylinder group and second tin roller 43 can do the swing displacement of second direction along with pedestal 41, and separates with the main wheel 32 of wheelchair 30; Brake

crank

34 and 41 bindings of pedestal in this wheelchair 30 are provided with clutch in addition, do the reciprocally swinging displacement of first direction and second direction to control this pedestal 41, and drive this cylinder group first and

second cylinder

42,43 and the main wheel 32 of belt 44 and wheelchair 30 engage or separate, for the type of drive of switching wheelchair 30; In present embodiment, this clutch links the connecting rod 47 that is pivoted between the bottom of this brake crank 34 and this connecting block 46, so that this brake crank 34 drives the reciprocally swinging displacement that this pedestal 41 is made first direction and second direction, and when pulling this brake crank 34, namely pivot along pivot 461 with this this connecting block 46 of connecting rod 47 interlocks, and drive this pedestal 41, first, two

cylinders

42,43 and belt 44 do the swing displacement of first direction and second direction, and make first in this pedestal 41, two

cylinders

42,43 and the main wheel 32 of belt 44 and wheelchair 30 engage transmissions or separate, for the type of drive of switching wheelchair 30.

See also shown in Figure 6, the present invention is when switching to power drive wheelchair 30 and advance, its crank 34 that should brake is pulled backward, this brake crank 34 namely pivots along pivot 461 with this this connecting block 46 of connecting rod 47 interlocks, and drive first and second cylinder 42 in this

pedestal

41,43 and belt 44 toward first directions swing displacements, and make this first and second cylinder 42, first and second annular groove 421 of 43,431 and belt 44 engage with the main wheel 32 of wheelchair 30; See also shown in Figure 7, then output shaft 451 and the driven wheel 452 with this electro-motor 45 of driven by power rotates, this driven wheel 452 namely drives first travelling gear 422 of first cylinder 42 and second travelling gear 432 of second tin roller 43 simultaneously, and then drive first cylinder 42 and second tin roller 43 toward equidirectionals rotation starts, in addition 44 of this belts are along with first cylinder 42 and second tin roller 43 revolutions, and with this first, two

cylinders

42,43 first, two annular grooves 421,431 and belt 44 engage transmission with the main wheel 32 of wheelchair 30, and then advance with the power drive wheelchair 30 of this electro-motor 45, and owing to utilize this first cylinder 42, second tin roller 43 and belt 44 directly engage transmission with the main wheel 32 of wheelchair 30, can guarantee that more the power output driving wheelchair 30 of electro-motor 45 is advanced.

See also shown in Figure 8, the present invention is when switching to manpower and drive wheelchair 30 and advance, its crank 34 that should brake is pulled forward, this brake crank 34 namely pivots along pivot 461 with this this connecting block 46 of connecting rod 47 interlocks, and drive first and second cylinder 42 in this

pedestal

41,43 and belt 44 toward second directions swing displacements, and make this first and second cylinder 42, first and second annular groove 421 of 43,431 and belt 44 separate with the main wheel 32 of wheelchair 30, user namely can the both hands application of force be pulled the handwheel 321 of main wheel 32, and advances with manpower driving wheelchair 30; See also shown in Figure 9, when driving wheelchair 30 with manpower, if need brake, then this brake crank 34 can be pulled backward in addition, and with this first and second cylinder 42, first and second annular groove 421 of 43,431 and belt 44 engage and support the main wheel 32 that ends wheelchair 30, can make wheelchair 30 stop to advance; Again because pedestal 41, cylinder group and the clutch of Power Drive Unit 40 of the present invention is installed in support body 31 sides of wheelchair 30, and make user when upper and lower wheelchair 30, can not be hindered, and can significantly promote the convenience that wheelchair 30 uses.

See also shown in Figure 10, when the present invention puts in order wheelchair 30 in receipts, because pedestal 41, cylinder group and the clutch of this Power Drive Unit 40 are installed in support body 31 sides of wheelchair 30, and can be directly with support body 31 foldings of wheelchair 30, and then can possess the manual wheelchair easy operating and receive the convenience of putting in order.

See also Figure 11, shown in Figure 12, another embodiment of the present invention, its two sides in general manual wheelchair 50 are equiped with Power Drive Unit 60 respectively; Wherein, this wheelchair 50 is pivoted with the main wheel 52 of tool handwheel 521 respectively in the two side places, rear end of support body 51, and installs the brake crank 54 that can forward and backwardly pull respectively in the appropriate position of support body 51 corresponding two main wheels, 52 wheel faces; This Power Drive Unit 60 consists predominantly of pedestal 61, cylinder group, drive source and clutch; This pedestal 61 is provided with the holding part 611 with opening 612, and is pivoted in the holding part 611 of this pedestal 61 for the cylinder group that engages transmission main wheel 52, and this cylinder group is pivoted with at least one cylinder in the holding part 611 of pedestal 61; In present embodiment, this cylinder group is pivoted with a cylinder 62 in the place, holding part 611 tops of pedestal 61, and preferably, the outer ring surface of this cylinder 62 is provided with V-shaped annular groove 621, the annular groove 621 of other this cylinder 62 is winding one belt 64 again, to increase contact area or the frictional force that engages transmission with main wheel 52; The cylinder 62 of this cylinder group links this drive source in addition, for driving this cylinder 62 rotations; In present embodiment, this pedestal 61 is in the intrinsic block set 613 of a side chain, can be the drive source of electro-motor 65 for installing one, this electro-motor 65 also is provided with an

output shaft

651, and 62 bindings of the output shaft 651 of this electro-motor 65 and cylinder are provided with a serial verb construction, to drive this cylinder 62 rotation starts, wherein, this serial verb construction is installed with driven wheel 652 on the output shaft 651 of electro-motor 65, one side of this cylinder 62 be installed with can with these driven wheel 652 intermeshing travelling gears 622, and with the travelling gear 622 of driven wheel 652 head rolls 62 of this electro-motor 65, and then drive cylinder 62 rotation starts; On other were used, this serial verb construction was the locking part just like bolt, and this cylinder 62 is locked in the output shaft 651 of electro-motor 65, can drive cylinders 62 rotation starts by electro-motor 65 equally; A connecting block 66 in addition locks on this block set 613, the top of this connecting block 66 also is hubbed at support body 51 sides of wheelchair 50 with pivot 661, so that this pedestal 61 can be done the swing displacement of first direction and second direction, and the cylinder 62 that makes this cylinder group can be done the swing displacement of first direction along with pedestal 61, and engage with the main wheel 52 of wheelchair 50, other makes the cylinder 62 of this cylinder group can do the swing displacement of second direction along with pedestal 61, and separates with the main wheel 52 of wheelchair 50; Brake

crank

54 and 61 bindings of pedestal in this wheelchair 50 are provided with clutch in addition, do the reciprocally swinging displacement of first direction and second direction to control this pedestal 61, and drive the cylinder 62 of this cylinder group and belt 64 and engage with the main wheel 52 of wheelchair 50 or separate, for the type of drive of switching wheelchair 50; In present embodiment, this clutch links the connecting rod 67 that is pivoted between the bottom of this brake crank 54 and this connecting block 66, so that this brake crank 54 drives the reciprocally swinging displacement that this pedestal 61 is made first direction and second direction, and when pulling this brake crank 54, namely pivot along pivot 661 with this this connecting block 66 of connecting rod 67 interlocks, and drive this pedestal 61, cylinder 62 and belt 64 are done the swing displacement of first direction and second direction, and make cylinder 62 in this pedestal 61 and belt 64 engage transmissions with the main wheel 52 of wheelchair 50 or separate, and then can switch the type of drive of wheelchair 50.

More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, under the situation that does not break away from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.

Claims

1. the Power Drive Unit of a manual wheelchair, this wheelchair is provided with support body, rear end two sides of this support body are provided with main wheel, the front end of this support body is then installed the deflecting roller that can do the rotation start, corresponding described these main wheel places respectively install the brake crank that can Gong pull at this support body, the corresponding main wheel setting of this Power Drive Unit; It is characterized in that: this Power Drive Unit includes:

2. the Power Drive Unit of manual wheelchair according to claim 1 is characterized in that: this support body be can folding support body.

3. the Power Drive Unit of manual wheelchair according to claim 1, it is characterized in that: this pedestal is provided with the holding part with opening, for the cylinder group that is pivoted.

4. the Power Drive Unit of manual wheelchair according to claim 3 is characterized in that: this cylinder group at least one cylinder that is pivoted in the place, holding part top of pedestal.

5. the Power Drive Unit of manual wheelchair according to claim 4, it is characterized in that: at least one cylinder of this cylinder group is provided with a V-shaped annular groove at outer ring surface.

6. the Power Drive Unit of manual wheelchair according to claim 5, it is characterized in that: this at least one cylinder is arranged with belt, for increasing the contact area that engages transmission with the main wheel of wheelchair.

7. the Power Drive Unit of manual wheelchair according to claim 1, it is characterized in that: this pedestal is in the intrinsic block set of a side chain, for the installing drive source, this drive source is provided with an output shaft, be provided with serial verb construction between at least one cylinder of this output shaft and cylinder group, to drive this at least one cylinder rotation start.

8. the Power Drive Unit of manual wheelchair according to claim 7, it is characterized in that: this serial verb construction is installed with driven wheel at the output shaft of this drive source, a side of this at least one cylinder be installed with can with a be meshing with each other travelling gear of transmission of this driven wheel.

9. the Power Drive Unit of manual wheelchair according to claim 7, it is characterized in that: locking one connecting block on this block set, the top of this connecting block also is hubbed on the support body side of wheelchair with pivot, so that this pedestal can be done the swing displacement of first direction and second direction along pivot.

10. the Power Drive Unit of manual wheelchair according to claim 9, it is characterized in that: this clutch links the connecting rod that is pivoted between the bottom of brake crank and connecting block, so that this brake crank drives the reciprocally swinging displacement that pedestal is made first direction and second direction.