EP0287857B1 - Treppensteigvorrichtung, beispielsweise für Rollstühle für Gehunfähige - Google Patents

Treppensteigvorrichtung, beispielsweise für Rollstühle für Gehunfähige Download PDF

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Publication number
EP0287857B1
EP0287857B1 EP88105074A EP88105074A EP0287857B1 EP 0287857 B1 EP0287857 B1 EP 0287857B1 EP 88105074 A EP88105074 A EP 88105074A EP 88105074 A EP88105074 A EP 88105074A EP 0287857 B1 EP0287857 B1 EP 0287857B1
Authority
EP
European Patent Office
Prior art keywords
running
stair
climbing device
wheel
wheels
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 - Lifetime
Application number
EP88105074A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0287857A3 (en
EP0287857A2 (de
Inventor
Ulrich Alber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CESSIONE;ULRICH ALBER GMBH
Original Assignee
Haas and Alber Haustechnik und Apparatebau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Haas and Alber Haustechnik und Apparatebau GmbH filed Critical Haas and Alber Haustechnik und Apparatebau GmbH
Priority to AT88105074T priority Critical patent/ATE63873T1/de
Publication of EP0287857A2 publication Critical patent/EP0287857A2/de
Publication of EP0287857A3 publication Critical patent/EP0287857A3/de
Application granted granted Critical
Publication of EP0287857B1 publication Critical patent/EP0287857B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • A61G5/061—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps for climbing stairs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
    • A61G5/063—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps with eccentrically mounted wheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S180/00—Motor vehicles
    • Y10S180/907—Motorized wheelchairs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S280/00—Land vehicles
    • Y10S280/10—Stair climbing chairs

Definitions

  • the invention relates to an electric motor operated stair climbing device, for example for wheelchairs for the disabled, with the features listed in the preamble of the main claim.
  • Such a stair climbing device is known from DD-A-144 896 in connection with a hand truck. It has the disadvantage that the two impellers of each pair of impellers are arranged rigidly with respect to one another, so that when this rigid structure is moved, there is a large shift in the base point which jeopardizes operational safety.
  • the invention has for its object to improve such a stair climbing device so that it allows a smaller size and can achieve a higher climbing performance with the same engine power, so that it is also suitable for wheelchairs for the disabled.
  • the mutual distance between the axes of the drive shafts mounted in the chassis can be at least approximately equal to twice the distance of the axis of rotation of the running ring of an impeller from its associated drive shaft.
  • the eccentric rotation of the hub discs of the two pairs of wheels swings one wheel of each pair of wheels up and down on the step, while the second wheel is swiveled further up.
  • the chassis resting on the first wheels of the two pairs of wheels can continue to move to the next step, while the second wheels of the pairs of wheels are pivoted up to the next step, so that the chassis then rests on the second wheels of the pairs of wheels. Additional support wheels on the chassis in the area of the wheels are no longer required.
  • a smooth handling of the climbing process can be achieved according to the invention in that the drive shafts drive in the same direction via a common drive chain with a reversible electric motor are coupled and the hub disk of one impeller of an impeller pair is offset from the hub disk of the other impeller by a circumferential angle of 180 ° and is connected to the drive shaft assigned to it.
  • the rim of the wheels of both pairs of wheels can be mounted on the coaxial hub lock via a roller bearing directional lock and can thus be moved in one direction, namely backwards when climbing stairs, even when the brake is closed. This makes it possible to go back to the next step despite the braked tread.
  • the running rim of the running wheels can be ascertained by means of a braking device, preferably by means of an electromagnetically actuated braking device which is coupled to an automatically acting control device. With the braking device, the running wheels can be prevented from continuing without interrupting their pivoting or lifting movement.
  • the tread of the impellers can be mounted on a central sleeve journal of the hub disk via a bearing sleeve, the bearing sleeve can carry a sprocket, a shaft journal can be rotatably supported concentrically within the associated drive shaft and carries the same sprocket, and the two sprockets can be supported by one endless chain to a chain drive with a gear ratio 1: 1 with each other be coupled.
  • the electromagnetic braking device can either be arranged on the shaft journal or else inside the running ring of the running wheels.
  • the rotation of the wheel rim rotates a brake disc of the braking device at the same speed as the wheel.
  • the running ring In the braking position, the running ring is blocked in one direction either directly or via the chain drive by means of the brake disc, that is to say the impeller is held at its circumference. The lifting movement of the transport wheel over the eccentrically mounted hub disc is not affected by this. Because of the 1: 1 ratio of the chain drive, the running ring stops braking.
  • the action of the braking device can be limited to one direction of travel by the rolling element directional lock.
  • Fig. 1 shows a schematic side view of a wheelchair 10 for the disabled, with a seat frame 11, which is connected to a chair frame 12, which ends at the front in two footbridges 13, on each of which a steering roller 14 is rotatably mounted.
  • a support frame for a stair climbing device 15 is attached to the chair frame 12 and has a left support plate 16 shown in FIG. 1 and an identical right support plate 16 on the invisible right side of the wheelchair 10.
  • On each support plate 16 is a pair of wheels 17a and 17b arranged, one of which runs on the roadway 18 in the normal position or rest position of the stair climbing device 15 shown in FIGS. 1 and 4.
  • the electric drive motor which actuates the stair climbing device is not shown in the drawings.
  • 1 shows, under the seat frame 11, a box 23 for accommodating batteries from which the common electric drive motor, which is coupled to an electrical control device, also not shown, is operated. It moves an endless chain 24 shown in FIG. 2, which is guided over the two sprockets 21a and 21b of the two drive shafts 20a and 20b to achieve a rotational movement of the two drive shafts 20a, 20b in the same direction and at the same speed. Between the two sprockets 21a and 21b the common drive chain 24 is guided over a sliding body 25, which could also be replaced by a deflection sprocket. It is understood that an identical pair of wheels is arranged and driven in exactly the same way on the right side of the wheelchair 10.
  • FIG. 3 shows that the support plate 16 consists of two spaced parallel plate walls 16.1 and 16.2, between which the common drive chain 24, which is only indicated by a dash-dotted line, is guided and the sprockets 21a and 21b arranged are, which are fastened on the drive shafts 20a and 20b, which are designed as hollow shafts and are mounted in the support plate 16.1 / 16.2.
  • each of the two identically designed impellers 17a and 17b of a pair of impellers has a hub disk 26a, 26b, which is fixedly connected to the eccentric drive shaft 20a, 20b and has a central axle bolt 27a, 27b.
  • a bearing sleeve 28a, 28b is pushed onto the axle bolts 27a, 27b, on which a roller bearing directional lock 29a, 29b is fastened, on which in turn the running ring 30a, 30b ending in a rubber tire 31a, 31b is mounted.
  • the bearing sleeve 28a, 28b is provided with a sprocket 32a, 32b, which is attached via an endless chain 33a, 33b, also shown in FIG. 2, with a hollow drive shaft 20a, 20b coaxial to the associated hollow drive shaft on a shaft journal 34a, 34b mounted concentrically in the drive shaft Sprocket 35a, 35b is coupled.
  • the shaft journal 34a, 34b is connected in a manner not shown to the brake disc of an electromagnetically actuated braking device 36a, 36b.
  • the two sprockets 32a, 32b and 35a, 35b are the same size, so that a chain drive with the transmission ratio 1: 1 results. If the electromagnetic braking device 36a, 36b is activated via a control device (not shown), the shaft journal 34a, 34b is blocked, which means that the bearing sleeve 28a, 28b is also blocked, so that the roller bearing directional lock 29a, 29b prevents the running ring 30a, 30b of the respective impeller 17a, 17b only permitted in one direction. The impeller 17a, 17b in question is blocked in the other direction of rotation.
  • the hub disk 26a, 26b which is fixedly connected to the drive shaft 20a, 20b, and thus also the running ring 30a, 30b of the wheels 17a and 17b, is pivoted by the upward movement of the stairs or downwards - depending on the set direction of rotation of the drive motor for the chain 24.
  • the tread remains stopped due to the selected gear ratio 1: 1 of the chain drive.
  • FIG. 4 shows the wheelchair 10 in a normal driving position, in which the two wheels 17a and 17b of both pairs of wheels are arranged approximately one above the other and the wheel 17a rests on the tread 18. In this position, the wheelchair 10 can move freely with the chain 24 stationary and without the brakes engaged. In this normal running position, the wheelchair 10 is moved backwards against the front edge 40.1 of the first step 40, the brakes are applied and then the drive motor for the chain 24 of the stair climbing device 15 is switched on.
  • the impeller 17b with its tread 30b blocked in the forward direction is moved onto the upper side of the first stage 40, as can be seen from FIG. 5.
  • the wheelchair 10 is now supported on the wheel 17b, while the wheel 17a is pivoted upwards as the stair climbing device continues to operate, as shown in FIG. 6.
  • the wheelchair can be rolled on the wheels 17b up to the front edge 41.1 of the next stage 41 because of the roller bearing alignment lock 29a.
  • the two wheels 17a, 17b of the two pairs of wheels come into a coaxial position shown in FIG. 7, from which the wheel 17a is pivoted upwards according to FIG. 8 until it is analogous to the position according to FIG. 5 the tread 41.2 of the second step 41 arrives.
  • This process is repeated, the impeller 17b always being raised to the next stage;
  • the impeller 17a is made up for.
  • Fig. 9 shows a central longitudinal section through an impeller 17b ⁇ of a stair climbing device, in which the electromagnetic braking device is arranged on the hub disk 26b ⁇ . This results in a larger braking area.
  • An with the tread 30b ⁇ connected armature plate 42 is biased by springs in the braking position, in which attached locking bolts 43 engage in a ring 30b am attached to the tread ring 46, so that the braking device is automatically effective in the event of a power failure.
  • the magnet winding 44 which is arranged on a counter disc 45 which is fixedly connected to the bearing sleeve 28b ⁇ , is excited and the brake is thereby released.
  • a roller bearing directional lock 29b ⁇ is arranged here on the shaft journal 34b ⁇ .
  • FIG. 10 shows a central longitudinal section corresponding to FIG. 9 through an impeller 17b ⁇ of a stair climbing device which is provided with a mechanical braking device.
  • Braking is carried out here by means of a brake shoe 47, which is formed at the end of a pivot lever 48 and acts on a drum surface 49 of the running ring 30b ⁇ .
  • the running ring 30b ⁇ is freely rotatably mounted on the hub disk 26b ⁇ via a ball bearing 50.
  • the pivot lever 48 with the brake shoe 47 is fastened on an axis 51 which also carries a second pivot arm 52 and is freely rotatably mounted in a carrier 53.
  • a key disk 54 projecting beyond the circumference of the running ring 30b 30 is freely rotatably mounted.
  • the carrier 53 is fixedly arranged with a coaxially arranged in the hub disk 26b sacred and its freely rotatable shaft part 55, which is also a Sprocket 32b ⁇ of the chain drive carries, via which the carrier 53 of the braking device is coupled to the support frame 16 ⁇ of the stair climbing device.
  • the sprocket 32b ⁇ is connected via a chain, not shown, to a sprocket 35b ⁇ , which is arranged concentrically with the drive shaft journal 34b ⁇ connected to the hub disk 26b ⁇ , but is fixedly connected to the support frame 16 ⁇ via screws 56.
  • the feeler 54 is normally on the same tread on which the rim 30b ⁇ rests, the feeler 54 leading the runner 17b ⁇ . If the impeller 17b ⁇ comes to a stair nosing, the sensing disc 54 falls off the stair nosing, the brake shoe 47 arranged on the pivoting lever 48 rigidly connected to the pivoting lever 52 braking the rim 30b ⁇ of the impeller 17b ⁇ , so that the wheelchair can never drive over a stair nosing .
  • the swivel arm 48 with the brake shoe 47 is in an inclined position when the brake shoe acts and is therefore only effective as a function of the direction of rotation. If the wheelchair is moved back, the brake is released automatically.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Handcart (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Types And Forms Of Lifts (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP88105074A 1987-04-23 1988-03-29 Treppensteigvorrichtung, beispielsweise für Rollstühle für Gehunfähige Expired - Lifetime EP0287857B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105074T ATE63873T1 (de) 1987-04-23 1988-03-29 Treppensteigvorrichtung, beispielsweise fuer rollstuehle fuer gehunfaehige.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3713564 1987-04-23
DE19873713564 DE3713564A1 (de) 1987-04-23 1987-04-23 Treppensteigvorrichtung, beispielsweise fuer rollstuehle fuer gehunfaehige

Publications (3)

Publication Number Publication Date
EP0287857A2 EP0287857A2 (de) 1988-10-26
EP0287857A3 EP0287857A3 (en) 1989-03-22
EP0287857B1 true EP0287857B1 (de) 1991-05-29

Family

ID=6326114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105074A Expired - Lifetime EP0287857B1 (de) 1987-04-23 1988-03-29 Treppensteigvorrichtung, beispielsweise für Rollstühle für Gehunfähige

Country Status (8)

Country Link
US (1) US5263547A (ja)
EP (1) EP0287857B1 (ja)
JP (1) JPH0651473B2 (ja)
AT (1) ATE63873T1 (ja)
AU (1) AU613358B2 (ja)
CA (1) CA1313891C (ja)
DE (1) DE3713564A1 (ja)
ES (1) ES2022506B3 (ja)

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DE10018577C1 (de) * 2000-04-14 2001-08-30 Alber Ulrich Gmbh & Co Kg Treppensteigvorrichtung
DE10018578C1 (de) 2000-04-14 2001-06-21 Alber Ulrich Gmbh & Co Kg Treppensteigvorrichtung
DE10018579C1 (de) * 2000-04-14 2001-06-13 Alber Ulrich Gmbh & Co Kg Treppensteigvorrichtung
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DE10161217C1 (de) * 2001-12-13 2002-10-10 Alber Ulrich Gmbh & Co Kg Treppensteigvorrichtung
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JP4857689B2 (ja) * 2005-09-30 2012-01-18 カシオ計算機株式会社 車輪駆動式移動装置
US8104779B2 (en) * 2006-12-21 2012-01-31 Roller Bearing Company Of America, Inc. Bearing for follower or cam
TW200844406A (en) * 2007-05-02 2008-11-16 Univ Nat Chiao Tung Sensing apparatus
TW200843992A (en) * 2007-05-02 2008-11-16 Univ Nat Chiao Tung Carrier with barrier-overpassing
WO2008142642A1 (en) * 2007-05-22 2008-11-27 Koninklijke Philips Electronics N.V. Motor driven stair-climbing device
NL2001683C2 (nl) 2008-06-13 2009-12-15 W C M Van Den Broek Beheer B V Transportmiddel voor het een trap op en af transporteren van een voorwerp.
DE102008044516B3 (de) * 2008-09-11 2009-10-29 Ulrich Alber Gmbh Treppensteigvorrichtung
CN101897641B (zh) * 2009-06-01 2011-12-21 南京理工大学 平地、楼梯两用助行装置
DE102010037729B4 (de) * 2010-04-27 2021-10-14 Alber Gmbh Treppensteigvorrichtung
CN102525753B (zh) * 2010-11-15 2015-04-22 滕美君 仿生行走步梯车
US20140083788A1 (en) * 2011-02-07 2014-03-27 University Of Technology, Sydney Step-Climbing Attachment for a Wheeled Chair
WO2013096370A1 (en) 2011-12-20 2013-06-27 Sabin Douglas G Apparatus, system and method for a load-bearing cart
CN102836035A (zh) * 2012-09-07 2012-12-26 深圳职业技术学院 残疾人用爬楼轮椅
US9510981B2 (en) 2013-03-14 2016-12-06 Stryker Corporation Reconfigurable transport apparatus
US9862434B2 (en) * 2016-01-21 2018-01-09 Sol Boards, Inc. Standing electric vehicle for golf course travel
JP6055981B1 (ja) * 2016-01-29 2017-01-11 株式会社コスモテック 階段昇降電動車椅子
CN110063849B (zh) * 2019-04-25 2020-05-12 常州大学 一种辅助老人自动爬楼机器人
CN113511240B (zh) * 2021-08-10 2022-02-18 丰县鲁班工程机械有限公司 一种薄板搬运装置

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Also Published As

Publication number Publication date
US5263547A (en) 1993-11-23
CA1313891C (en) 1993-02-23
AU1463788A (en) 1988-10-27
DE3713564C2 (ja) 1989-05-24
EP0287857A3 (en) 1989-03-22
JPS63275477A (ja) 1988-11-14
ES2022506B3 (es) 1991-12-01
ATE63873T1 (de) 1991-06-15
JPH0651473B2 (ja) 1994-07-06
EP0287857A2 (de) 1988-10-26
AU613358B2 (en) 1991-08-01
DE3713564A1 (de) 1988-11-10

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