CN104367425B - Light and convenient wheelchair for climbing stairs - Google Patents
Light and convenient wheelchair for climbing stairs Download PDFInfo
- Publication number
- CN104367425B CN104367425B CN201410516546.2A CN201410516546A CN104367425B CN 104367425 B CN104367425 B CN 104367425B CN 201410516546 A CN201410516546 A CN 201410516546A CN 104367425 B CN104367425 B CN 104367425B
- Authority
- CN
- China
- Prior art keywords
- wheelchair
- axle
- friction
- wheels
- wheelchair frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Handcart (AREA)
Abstract
The invention provides a light and convenient wheelchair for climbing stairs. The wheelchair comprises a wheelchair frame containing front feet and rear feet and hand-rotating wheels. The lower end of the wheelchair frame is provided with obliquely-arranged crawler wheels. The crawler wheels comprise a front transmission shaft with driving wheels and a rear axle with clutch wheels. The front transmission shaft is arranged at the lower ends of the front feet. The rear axle is arranged in groove holes of the lower ends of the rear feet. The clutch wheels are arranged on the rear axle through bearings and fixedly connected with the rear axle through a friction clutch, wherein the rear axle is sleeved with the friction clutch. Friction wheels are in movable fit with the rear axle through sliding keys. The crawler wheels are driven by a motor connected to the lower side of the front end of the wheelchair frame. Hanging boards are fixedly connected to the outer ends of the rear axle respectively and the lower ends of the hanging boards are connected with rear idler wheels. An oblique baffle is connected to the rear end face of the wheelchair frame, a short shaft is fixed to the oblique baffle and connected with a supporting foot, and the lower end of the supporting foot is connected with an auxiliary wheel. A cam mechanism is arranged on the periphery of the friction wheels which correspond to pawls of a ratchet mechanism arranged on the oblique baffle and the ratchet mechanism is connected with the supporting foot. The friction clutch is controlled by a hand-pull controller arranged on one side of the wheelchair frame. Pedals at the front end of the wheelchair frame are connected with universal wheels. The light and convenient wheelchair is easy and convenient to use and safe.
Description
Technical field
The invention belongs to wheelchair technical field and in particular to a kind of can stair activity wheelchair device.
Background technology
Existing stair climbing wheelchair, it is climbed the method in building and includes crawler-type wheel chair, but the stair climbing wheel chair of the type, maximum
Defect be no matter upper downstairs, it keeps chair top level all to reach with tilting chair body, and tilting chair body leads to chair body phase
To becoming large-sized, along with nursing staff can only buttress chair at the chair back, cause it can not use in common stair, general
The berm width of logical stair is typically between 96-120cm, and wheelchair reaches more than 130cm plus its length of the person after tilting,
Can only stand in get off on armchair at the chair back, also resulting in nursing staff must be to bend down on body downstairs, that is, tire out also dangerous.
Secondly, existing crawler-type wheel chair is all the structure fixing using rotating shaft, elapses for convenience on level land, so will
Crawler belt is designed to can be lifted or turning structure, this structure not only complex structure, and often goes out event because of labyrinth
Barrier.
Such as Chinese Patent Application No. 200810088256.7, entitled " electric foldable crawler type no-obstruct wheelchair "
Application for a patent for invention, discloses a kind of foldable caterpillar barrier free wheelchair, is by seat, back rest, front-wheel, trailing wheel, crawler belt, electricity
Mechanism becomes, and is characterized in smoothly complete accessible manned walking on level land, stair and other complex road surface, level land makes
Used time crawler belt can be packed up auto-folder, drives trailing wheel work by motor;When stair etc. have walking on obstacle road surface, crawler belt may be used again
Automatic-expanding, trailing wheel is packed up, and drives crawler belt work by motor.The crawler belt of this wheelchair needs folding to pack up when elapsing on level land.
And for example Chinese Patent Application No. 201310325615.7, entitled " a kind of crawler belt, wheeled changeable wheelchair " send out
Bright patent application, including the ratcheting mechanism of wheelchair body and drive wheelchair body movement, the both sides of wheelchair body bottom portion are additionally provided with
Pedrail mechanism, the elevating mechanism driving pedrail mechanism lifting and the control system controlling elevating mechanism operation, pedrail mechanism includes
Main crawler belt and secondary crawler belt, the front end of the rear end of main crawler belt and secondary crawler belt shares an Athey wheel, and this Athey wheel is supported by crawler belt
Frame is hinged with wheelchair body, and the rear end of secondary crawler belt is upturned to the rear portion of wheelchair body, and elevator is passed through in the front end of main crawler belt
Structure is connected with wheelchair body.This invention needs to pack up crawler belt makes the common wheelchair of wheelchair picture walk, and needs handss in stair climbing
Dynamic regulation makes crawler belt put down and tilts, and completes the stair climbing process of wheelchair.
For another example China Patent No. zl201320833460.3, the practicality of entitled " folding the stair-climbing wheel chair of crawler belt with segmentation "
New patent, discloses a kind of stair-climbing wheel chair folding crawler belt with segmentation, is provided with chair frame, is respectively provided with hand propelled in the chair frame of both sides
Chair wheel, is respectively provided with universal wheel in the bottom of anterior chair frame, is provided with seat support on chair frame, is provided with chair cushion, front on seat support
The middle part of portion's chair frame is provided with pedal, is provided with crawler belt installing plate in the lower end of rear portion chair frame, and described crawler belt installing plate passes through crawler belt
Installing hole is provided with segmentation and folds crawler belt, and described segmentation folds crawler belt and is divided into leading portion crawler belt, back segment crawler belt, before leading portion crawler belt is provided with
Section crawler belt bearing support, leading portion crawler belt bearing support is provided with leading portion crawler belt bogie wheel, leading portion crawler driving whell, leading portion crawler belt.Very aobvious
So, this patent adopts segmentation crawler belt, makes structure greatly complicated, troublesome poeration, easy break-down.
Content of the invention
The technical problem to be solved in the invention is, needing of overcoming that the crawler-type wheel chair of prior art exists folds crawler belt
Complex structure, troublesome poeration, troublesome defect, provide a kind of fixed crawler belt, structure relatively easy, easy to operate
Crawler-type wheel chair.
The purpose of the present invention is achieved by following technical proposals: a kind of stair climbing easy-to-move wheelchair, including wheelchair
Framework and handss runner, wheelchair frame includes a pair of forward foot in a step and a pair of rear foot, and the bottom of the forward foot in a step is provided with axis hole, the lower end of wheelchair frame
There is the low early and high after Athey wheel being obliquely installed two sides, and Athey wheel includes being provided with the front propeller shaft of drivewheel and is provided with castle wheel
Hind axle, front propeller shaft is installed in the axis hole of forward foot in a step bottom, and hind axle is installed in the slotted eye of rear foot lower end, and castle wheel leads to
Cross rolling bearing to be arranged on hind axle, and the friction that castle wheel is consisted of the friction pulley being sleeved on hind axle that slides
Clutch can be fixedly connected with hind axle, and friction pulley passes through feather key and hind axle clearance fit, and Athey wheel is by being connected to wheelchair
Motor on the downside of frame front end drives；The outer end of hind axle is respectively fixedly connected one piece of link plate, and link plate lower end is connected with rear roller；
The rear end face of wheelchair frame is connected with oblique gear, tiltedly blocks and is fixed with short axle, and short axle is connected with leg, and leg lower end connects accessory whorl；
The periphery of friction pulley is provided with cam mechanism, and cam mechanism is corresponding with the ratchet being arranged on the ratchet mechanism tiltedly blocked, ratchet mechanism
It is connected with leg；Friction clutch pulls controller control by be arranged on wheelchair frame side；The front end of wheelchair frame connects
There is step, the bottom surface of step is equipped with universal wheel.
When level land travels, the universal wheel conflict bottom surface walking jointly of handss runner, rear roller and step bottom surface；Near building
Ladder will upstairs when, turn direction, so that wheelchair is negated to upstairs, advance wheelchair, make rear roller touch first order step, the pair of rear end
Wheel touches second level step, now detachable assistant's runner can be hung over forward foot in a step upper end, then pulls control by hand control
Device processed, to control friction clutch action, makes castle wheel be fixedly connected with hind axle by friction pulley, now crawler belt is by motor belt motor
Move and rotate and drive hind axle to rotate, hind axle rotates the rear roller rotation again driving link plate and link plate lower end, friction pulley simultaneously
The ratchet of the cam mechanism of periphery and the ratchet mechanism tiltedly blocked is answered back to, and promotes pawl wheel, promotes to be fixed on tiltedly block short
The accessory whorl that axle connects together with leg and leg lower end rotates backward, rotated backward together due to rear roller and accessory whorl so that
Soar in wheelchair rear end, then crawler belt can contact stair, and under motor drives, crawling traction wheelchair is soaring toward on stair.
Preferably, the angle that crawler belt tilts is passed through to adjust position adjustments in the slotted eye of rear foot lower end for the hind axle.
Preferably, there is u shape groove link plate lower end, rear roller is connected with u shape groove by little axle.
Preferably, there are the friction sleeve of dome cone structure, friction sleeve and castle wheel one end in one end of described friction pulley
Recessed part pyramid like configuration is corresponding to constitute friction pair, has back-moving spring between castle wheel and friction pulley, pulls after controller includes riding over
Axle on wheel shaft is stopped part, and the stop other end of part and friction pulley of axle passes through the axial cam separably phase top pressure that is each provided with.Draw
Play axle to stop part, axle part of stopping passes through axial cam top pressure friction pulley, compresses with friction sleeve phase, then carry out after friction pulley compression reseting spring
Belt wheel passes through castle wheel and friction pulley drives hind axle to rotate, thus driving link plate and rear roller to rotate.
Preferably, the cam mechanism of the outer peripheral face of described friction pulley is made up of the convex tendon of an axial direction, convex tendon corresponds to top pressure
The ratchet of ratchet mechanism, is fixedly mounted in short axle with the ratchet of click-fit.
When friction pulley rotates, the convex tendon top pressure ratchet of the outer peripheral face of friction pulley, ratchet promotes pawl wheel, together with ratchet
The leg being fixedly connected in short axle and secondary opinion also rotate together.
Preferably, there is jack forward foot in a step upper end is provided with cap round pin, jack is adapted to the axle of handss runner.Going upstairs
When, dismantle handss runner, handss runner is hung in jack and is locked with band cap round pin.
Preferably, described short axle is provided with torsion torque sensor, the outfan of torsion torque sensor connects signal alarm.Behaviour
Author continues propulsion wheelchair, and accessory whorl touches the front facade of third level step, and leg is subject to torque, and torque is transferred to torsion sensing
Device, when the lateral thrust that accessory whorl is subject to exceedes to a certain degree, torsion torque sensor output signal is simultaneously reported to the police, and reminds seat operation person
Manipulation pulls controller and controls friction clutch action, controlled motor action simultaneously.
Preferably, the opposite side of wheelchair frame is connected with electrical equipment box, in electrical equipment box, include connection storage battery and electricity
The switch of machine, the signal alarm connecting torsion torque sensor, illuminating lamp and its switch.
The invention has the beneficial effects as follows:
1st, space of soaring is avoided by the rear roller of clutch band wheelchair rear end, make the crawler belt being obliquely installed contact building
Ladder, structure is simple, easy and simple to handle；
2nd, crawler belt is fixedly connected, and need not fold, also without segmentation, simple and durable；
3rd, crawler belt is fixedly connected, safe and reliable；
4th, adjust and maintenance is all easy.
Brief description
Fig. 1 is the structural representation of an embodiment of the present invention；
Fig. 2 is friction clutch structural representation.
In figure, wheelchair frame 1；The forward foot in a step 11；Jack 111；Band cap round pin 112；The rear foot 12；Tiltedly gear 14；Step 15；Universal wheel
16；Handss runner 2；Athey wheel 3；Drivewheel 31；Front propeller shaft 32；Castle wheel 33；Hind axle 34；Friction clutch 4；Friction pulley
41；Friction sleeve 411；Back-moving spring 42；Convex tendon 43；Motor 5；Link plate 61；Rear roller 62；Pull controller 7；Short axle 71；Leg
72；Accessory whorl 73；Ratchet mechanism 74；Stair 8.
Specific embodiment
The invention will be further described with specific embodiments below in conjunction with the accompanying drawings.
Embodiment: as shown in figure 1, a kind of stair climbing easy-to-move wheelchair, including wheelchair frame 1 and handss runner 2, wheelchair frame 1
Including a pair of forward foot in a step 11 and a pair of rear foot 12, the bottom of the forward foot in a step 11 is provided with axis hole, the lower end two sides of wheelchair frame 1 have front low after
The Athey wheel 3 of high dip setting, Athey wheel 3 includes being provided with the front propeller shaft 32 of drivewheel 31 and the hind axle being provided with castle wheel 33
34, front propeller shaft 32 is installed in the axis hole of the forward foot in a step 11 bottom, and hind axle 34 is installed in the slotted eye of the rear foot 12 lower end, clutch
Wheel 33 is arranged on hind axle 34 by rolling bearing, and the friction clutch 4 that castle wheel 33 is consisted of friction pulley 41
Can connect with being relatively fixed with hind axle 34, friction pulley 41 is slidably matched with hind axle 34 by feather key, Athey wheel 3 is by connecting
Motor 5 on the downside of wheelchair frame 1 front end drives；The outer end of hind axle 34 is respectively fixedly connected one piece of link plate 61, under link plate 61
There is u shape groove at end, and rear roller 62 is connected with u shape groove by little axle.
There are the friction sleeve 411 of dome cone structure, the recessed circle of friction sleeve 411 and castle wheel 33 one end in one end of friction pulley 41
The conical surface is corresponding to constitute friction pair, has back-moving spring 42, pull controller 7 and include riding over trailing wheel between castle wheel 33 and friction pulley 41
Axle on axle 34 is stopped part, and the stop other end of part and friction pulley 41 of axle passes through the axial cam separably phase top pressure that is each provided with.
Pull-up axle is stopped part, and axle part of stopping passes through axial cam top pressure friction pulley 41, with castle wheel 33 after friction pulley 41 compression reseting spring 42
Mutually compress, then Athey wheel 3 pass through castle wheel 33 and friction pulley 41 transmission so that hind axle 34 is rotated, hind axle 34 drive link plate 61 with
And rear roller 62 rotates, as shown in Figure 2.
The rear end face of wheelchair frame 1 is connected with oblique gear 14, is tiltedly fixed with short axle 71 on gear 14, short axle 71 is connected with leg
72, leg 72 lower end connects accessory whorl 73；The outer peripheral face of friction pulley 41 is provided with cam mechanism, and cam mechanism is by the convex tendon 43 of an axial direction
Constitute, convex tendon 43 is corresponding with the ratchet of the ratchet mechanism 74 being arranged on oblique gear 14, is fixedly mounted on the ratchet of click-fit
In short axle 71.Short axle 71 is provided with torsion torque sensor, and the outfan of torsion torque sensor connects signal alarm.Friction pulley 41 rotates
When, the convex tendon 43 top pressure ratchet of the outer peripheral face of friction pulley, ratchet promotes pawl wheel, is fixedly connected on short axle 71 together with ratchet
On leg 72 and accessory whorl 73 also with rotating backward.
Rear roller 62 and accessory whorl 73 successively rotate, and are crawler belt contact stair 8 vacating space.
Pull the side that controller is arranged on wheelchair frame 1；The front end of wheelchair frame 1 is connected with step 15, step 15
Bottom surface guides wheelchair direct of travel equipped with universal wheel 16, universal wheel 16.
The angle that crawler belt tilts can be adjusted by adjusting position in the slotted eye of the rear foot 12 lower end for the hind axle 34.Carry out
Angle with tilting should be essentially identical with the gradient of stair 8, but for fixing user, stair 8 are also relatively to determine,
As long as so once adjust substantially need not frequently can be changed with life-time service.
The opposite side of wheelchair frame 1 is connected with electrical equipment box, include in electrical equipment box connect storage battery and motor switch,
Connect signal alarm, illuminating lamp and its switch of torsion torque sensor.
When level land travels, the universal wheel 16 conflict bottom surface row jointly of handss runner 2, rear roller 62 and step 15 bottom surface
Walk；Near stair 8 will upstairs when, turn direction, so that wheelchair is negated to upstairs, advance wheelchair, make rear roller 62 touch the first order
Step, the accessory whorl 73 of rear end touches the table top of second level step, and now vertically, handss runner is liftoff for rear roller 62, and detachable assistant turns
Wheel 2 simultaneously can be hung over the forward foot in a step 11 upper end, and there is jack 111 forward foot in a step 11 upper end is provided with cap round pin 112, jack 111 and handss
The axle adaptation of runner 2, handss runner 2 is hung in jack 111 and is locked with band cap round pin 112.Operator continues propulsion wheelchair, after
Facade before roller 62 touching first order step, packs up rear roller 62 by clutch, continues propulsion wheelchair, accessory whorl 73 touching second
The front facade of level step, leg 72 is subject to torque, and torque is transferred to torsion torque sensor, when the lateral thrust that accessory whorl 73 is subject to exceedes
When to a certain degree, torsion torque sensor output signal is simultaneously reported to the police, and reminds seat operation person's manipulation to pull controller and controls friction clutch
Device 4 action, controlled motor 5 action simultaneously；Friction clutch 4 action, castle wheel 33 is passed through friction pulley 41 and hind axle 34 is solid
Fixed connection, now crawler belt is driven by motor 5 and drives hind axle 34 to rotate, and hind axle 34 rotates and drives under link plate 61 and link plate again
The rear roller 62 at end rotates, and the convex tendon 43 of friction pulley 41 periphery and the oblique ratchet keeping off the ratchet mechanism 74 on 14 are answered back to simultaneously, push away
Dynamic pawl wheel, promotes to be fixed on the accessory whorl 73 that short axle 71 on oblique gear 14 connects together with leg 72 and leg lower end backward
Rotate, because rear roller 62 and accessory whorl 73 rotate backward so that soaring below wheelchair rear end, then crawler belt can contact stair 8,
And under motor 5 drives, crawling traction wheelchair is soaring toward on stair 8.
The present invention is avoided and space of soaring by the rear roller of clutch band wheelchair rear end, so that the crawler belt being obliquely installed is connect
Tactile stair, have the advantages that structure is simple, easy and simple to handle, safe and reliable, if those skilled in the art is in foregoing invention
Hold make simple change or replace, such change is not to be regarded as a departure from the scope of the present invention, all so to art
The obvious modification of technical staff be included within the scope of the claim of the present invention.
Claims (5)
1. a kind of stair climbing easy-to-move wheelchair, including wheelchair frame and handss runner, is characterized in that, wheelchair frame include a pair of forward foot in a step and
A pair of rear foot, the bottom of the forward foot in a step is provided with axis hole, and there is the low early and high after Athey wheel being obliquely installed the lower end two sides of wheelchair frame, and carries out
Belt wheel includes the front propeller shaft being provided with drivewheel and the hind axle being provided with castle wheel, and front propeller shaft is installed on the axle of forward foot in a step bottom
Kong Zhong, hind axle is installed in the slotted eye of rear foot lower end, and castle wheel is arranged on hind axle by rolling bearing, and castle wheel
Can be fixedly connected with hind axle by the friction clutch that the friction pulley being sleeved on hind axle that slides is constituted, friction pulley leads to
Cross feather key and hind axle clearance fit, Athey wheel is driven by the motor being connected on the downside of wheelchair frame front end；The outer end of hind axle
Portion is respectively fixedly connected one piece of link plate, and link plate lower end is connected with rear roller；The rear end face of wheelchair frame is connected with oblique gear, tiltedly blocks solid
Surely there is short axle, short axle is connected with leg, leg lower end connects accessory whorl；The periphery of friction pulley is provided with cam mechanism, cam mechanism with
The ratchet being arranged on the ratchet mechanism tiltedly blocked corresponds to, and ratchet mechanism is connected with leg；Friction clutch is by being arranged on wheelchair frame
Frame side pull controller control；The front end of wheelchair frame is connected with step, and the bottom surface of step is equipped with universal wheel；Crawler belt tilts
Angle pass through adjust position adjustments in the slotted eye of rear foot lower end for the hind axle；There is dome cone structure one end of friction pulley
Friction sleeve, friction sleeve is corresponding with the recessed part pyramid like configuration of castle wheel one end to constitute friction pair, has multiple between castle wheel and friction pulley
Position spring, pulls the axle that controller includes riding on hind axle and stops part, axle stop part with the other end of friction pulley by being each provided with
Axial cam separably phase top pressure.
2. a kind of stair climbing easy-to-move wheelchair according to claim 1, is characterized in that, the cam of the outer peripheral face of described friction pulley
Mechanism is made up of the convex tendon of an axial direction, the ratchet of the corresponding top pressure ratchet mechanism of convex tendon, is fixedly mounted on the ratchet of click-fit
In short axle.
3. a kind of stair climbing easy-to-move wheelchair according to claim 1 and 2, is characterized in that, there is jack forward foot in a step upper end is furnished with
Band cap round pin, jack is adapted to the axle of handss runner.
4. a kind of stair climbing easy-to-move wheelchair according to claim 1 and 2, is characterized in that, described short axle is provided with torsion and passes
Sensor, the outfan of torsion torque sensor connects signal alarm.
5. a kind of stair climbing easy-to-move wheelchair according to claim 1 and 2, is characterized in that, the opposite side of wheelchair frame connects
There is electrical equipment box, in electrical equipment box, include the switch connecting storage battery and motor, the signal alarm connecting torsion torque sensor, photograph
Bright lamp and its switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410516546.2A CN104367425B (en) | 2014-09-30 | 2014-09-30 | Light and convenient wheelchair for climbing stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410516546.2A CN104367425B (en) | 2014-09-30 | 2014-09-30 | Light and convenient wheelchair for climbing stairs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104367425A CN104367425A (en) | 2015-02-25 |
| CN104367425B true CN104367425B (en) | 2017-01-18 |
Family
ID=52546794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410516546.2A Expired - Fee Related CN104367425B (en) | 2014-09-30 | 2014-09-30 | Light and convenient wheelchair for climbing stairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104367425B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018025172A1 (en) * | 2016-08-02 | 2018-02-08 | B-Free Limited | Hybrid wheeled and tracked moving mechanism |
| CN106585677B (en) * | 2017-01-11 | 2018-09-07 | 唐山学院 | It is a kind of to have level land transport concurrently, climb building and be lifted the floor truck of cargo function |
| CN112744281A (en) * | 2019-10-31 | 2021-05-04 | 张效琪 | Electric baby carriage and baby carriage with elastic main wheel provided with crawler-type front guide wheel and rear auxiliary wheel and capable of being mounted on bus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191953A (en) * | 1962-12-28 | 1965-06-29 | Edward M Aysta | Stair climbing wheel chair |
| DE3827607A1 (en) * | 1987-09-03 | 1989-03-16 | Dieter Dipl Ing Henkes | Stair-climbing wheel-chair |
| CN2269993Y (en) * | 1996-05-31 | 1997-12-10 | 王绍君 | Crawler-type collapsible dual-purpose trolley for coming-up stairs, driven by motor and hand |
| CN2461518Y (en) * | 2001-02-16 | 2001-11-28 | 郭永利 | Wheel chair able to crawl stairs |
| CN1449957A (en) * | 2003-01-16 | 2003-10-22 | 谭正川 | Hand cart for climbing stairs and walking |
| CN2854192Y (en) * | 2005-08-23 | 2007-01-03 | 安徽赛而特离心机有限公司 | Friction clutch of dish clutch |
| GB2433731B (en) * | 2004-04-18 | 2008-02-20 | Peter Kotlarov | Stair climber for autonomous climbing, adaptable to manual wheelchairs |
-
2014
- 2014-09-30 CN CN201410516546.2A patent/CN104367425B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3191953A (en) * | 1962-12-28 | 1965-06-29 | Edward M Aysta | Stair climbing wheel chair |
| DE3827607A1 (en) * | 1987-09-03 | 1989-03-16 | Dieter Dipl Ing Henkes | Stair-climbing wheel-chair |
| CN2269993Y (en) * | 1996-05-31 | 1997-12-10 | 王绍君 | Crawler-type collapsible dual-purpose trolley for coming-up stairs, driven by motor and hand |
| CN2461518Y (en) * | 2001-02-16 | 2001-11-28 | 郭永利 | Wheel chair able to crawl stairs |
| CN1449957A (en) * | 2003-01-16 | 2003-10-22 | 谭正川 | Hand cart for climbing stairs and walking |
| GB2433731B (en) * | 2004-04-18 | 2008-02-20 | Peter Kotlarov | Stair climber for autonomous climbing, adaptable to manual wheelchairs |
| CN2854192Y (en) * | 2005-08-23 | 2007-01-03 | 安徽赛而特离心机有限公司 | Friction clutch of dish clutch |
Non-Patent Citations (1)
| Title |
|---|
| "一种轮履组合式爬楼轮椅的设计";王淑坤 等;《机械传动》;20131231;第37卷(第10期);第156-159页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104367425A (en) | 2015-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105434121B (en) | Electric stair climbing wheelchair | |
| CN202641747U (en) | Motor-driven electrical power assisted stair climbing cart | |
| CN103169579A (en) | Rapidly-dismounted electric stair-climbing wheelchair | |
| CN104367425B (en) | Light and convenient wheelchair for climbing stairs | |
| CN206453912U (en) | A kind of stair activity mobile platform based on carbon fibre composite | |
| CN201664401U (en) | Safety braking device for walking aid | |
| CN202605146U (en) | Electrical stair climbing vehicle | |
| CN202724206U (en) | Walking aid | |
| CN106618892A (en) | Multifunctional wheelchair enabling independent travel | |
| CN203303259U (en) | Electric wheelchair capable of automatically climbing stairs | |
| CN201798860U (en) | Multifunctional vehicle for disabled persons | |
| CN201798883U (en) | Walking aid with safety brake performance | |
| CN201492596U (en) | Double-purpose electric wheel chair capable of going upwards and downstairs and going on flat road | |
| CN202821882U (en) | Draw bar driving wheel chair | |
| CN102626359A (en) | Self-help electrically-powered wheelchair capable of going up and down stairs | |
| CN202821884U (en) | Electrically powered wheelchair capable of moving up and down stairs in self-help mode | |
| CN209814142U (en) | Portable stair climbing machine | |
| CN201091644Y (en) | Foldable medical truckle | |
| CN203806910U (en) | Carrying device for escalator | |
| CN205108171U (en) | Medical supplementary ferry -boat equipment | |
| CN105748218B (en) | Cat ladder auxiliary device | |
| CN203970711U (en) | Scooter downstairs on a kind of autocontrol | |
| CN111700743A (en) | Electric wheelchair capable of going up and down stairs | |
| CN203354790U (en) | Multifunctional electric wheelchair | |
| CN203017224U (en) | Novel wheelchair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190621 Address after: 226100 Guangzhou Road 999 Haimen Economic and Technological Development Zone, Nantong City, Jiangsu Province Patentee after: Nantong North Bund Construction Engineering Co.,Ltd. Address before: 315400 21 Lanxi new village, Yuyao, Ningbo, Zhejiang Patentee before: Zhang Jiancheng |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20210930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |