EP1053968A2 - Treppenaufzug für eine Treppe mit variabeler Steigung - Google Patents

Treppenaufzug für eine Treppe mit variabeler Steigung Download PDF

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Publication number
EP1053968A2
EP1053968A2 EP00100177A EP00100177A EP1053968A2 EP 1053968 A2 EP1053968 A2 EP 1053968A2 EP 00100177 A EP00100177 A EP 00100177A EP 00100177 A EP00100177 A EP 00100177A EP 1053968 A2 EP1053968 A2 EP 1053968A2
Authority
EP
European Patent Office
Prior art keywords
gear
pinion
stairlift
stabilizer
guiding bar
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.)
Granted
Application number
EP00100177A
Other languages
English (en)
French (fr)
Other versions
EP1053968B1 (de
EP1053968A3 (de
Inventor
Donato Cavicchioli
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.)
Vimec SRL
Original Assignee
Vimec SRL
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 Vimec SRL filed Critical Vimec SRL
Publication of EP1053968A2 publication Critical patent/EP1053968A2/de
Publication of EP1053968A3 publication Critical patent/EP1053968A3/de
Application granted granted Critical
Publication of EP1053968B1 publication Critical patent/EP1053968B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0807—Driving mechanisms
    • B66B9/0815—Rack and pinion, friction rollers

Definitions

  • the present invention relates to a stairlift for variable-slope flight portions.
  • stairlifts used for example to carry wheelchairs for the handicapped or chairs for the elderly, are usually constituted by a movable frame which is slideable on two guiding bars which are connected to a fixed structure to the side of the staircase.
  • the frame must maintain a fixed and stable position with respect to the horizontal and therefore it must be able to compensate for the variations in slope which occur for example where there is a landing or otherwise a change in the angle of inclination.
  • Solutions are currently already known and are disclosed for example in patent application WO95/15909; they substantially provide for an upper guiding bar and a lower guiding bar which are connected to the wall and are arranged so that their mutual distance is constant in a vertical direction.
  • the frame is slideable on the guides and is actuated by a lower pinion and an upper pinion which are always mutually connected and engage corresponding racks formed on the guides.
  • the aim of the invention is to solve the above problem by providing a stairlift for variable-slope flight portions which allows to compensate for any pitch variations without thereby causing forcing or loss of stability of the assembly.
  • a particular object of the invention is to provide a stairlift in which mutual slipping between the pinion that meshes with the upper guide and the pinion that meshes with the lower guide can occur.
  • Another object of the present invention is to provide a stairlift which, thanks to its particular constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
  • Another object of the present invention is to provide a stairlift which can be easily obtained starting from commonly commercially available elements and materials and is also competitive from a merely economical point of view.
  • a stairlift for variable-slope flight portions which comprises an upper guiding bar and a lower guiding bar which can be fixed to a fixed structure and have a constant distance in a vertical direction, a movable frame being slideable on said guiding bars, said frame supporting an actuation motor, a main driving pinion which is actuated by said motor and meshes with an upper toothed guide formed on said upper guiding bar and a stabilizer pinion which meshes with a lower toothed guide which is formed on said lower guiding bar, characterized in that said stabilizer pinion is freely rotatable if the inclination of said guiding bars exceeds a preset value, means for functional connection between said stabilizer pinion and said main driving pinion being also provided which are actuated if the inclination of said guiding bars is lower than said preset value.
  • the stairlift for variable-slope flight portions comprises an upper guiding bar 2 and a lower guiding bar 3 which can be fixed by means of wall anchors 4 or similar elements to a fixed structure which is constituted for example by a side wall 5 of the flight of stairs.
  • the guiding bars 2 and 3 run so as to have a constant distance in a vertical direction.
  • a movable frame is slideable on the guiding bars, supports an actuation motor 11 and is provided, for example, with a platform 9 in a downward region.
  • An upper carriage 12 and a lower carriage 13 respectively engage the guiding bars and oscillate with respect to the frame 10 so as to ensure that the assembly maintains a constant trim.
  • the upper carriage 12 is provided with two upper rollers 20 which engage the upper part of the bar 2 and have, in a downward region, a main driving pinion 21.
  • Pinion 21 is keyed on an actuation shaft 22 which also constitutes the pivot for the oscillation of the carriage 12, which is provided with a lower roller 23 which is laterally adjacent to the main driving pinion 21, which meshes with a rack 25, constituted for example by holes provided in the guiding bar 2.
  • the lower carriage 13 also is provided with two upper rollers, designated by the reference numeral 20a, and with a stabilizer pinion 30 which engages a rack 31 which is constituted, in this case also, by holes formed with a uniform pitch in the lower guiding bar 3.
  • the stabilizer pinion 30 is keyed on an auxiliary shaft 32 which acts as oscillation pivot for the carriage 13, which is provided with a lower roller 23a.
  • the particularity of the invention consists in that the stabilizer pinion 30 is freely rotatable in case of portions of the guiding bars whose inclination exceeds a preset value and is instead rigidly rotationally coupled, and accordingly acts as a stabilizer, in case of portions of the guiding bars whose inclination is lower than said preset value.
  • the main shaft 22 is turned by means of a pinion 40 which is keyed on it and is actuated, by means of a chain 41, by a driving pinion 42 which is connected to the motor 11.
  • a first gear 50 is keyed to the shaft 22 and meshes with a second gear 51 which is coaxial and faces a third gear 53 rotatably connected to an intermediate shaft 54 on which the gear 51 is rotatably connected.
  • Friction means 60 act between the gear 51 and the gear 53 and constitute means for providing the functional connection of the stabilizer pinion 30 to the driving pinion 21.
  • the third gear 53 in fact meshes with a fourth gear 56 which is keyed to the auxiliary shaft 32.
  • the friction means 60 are actuated by means of an actuation stem 70 which interacts with the end 72 of a rocker 73 which has, at its other end 74, a cam follower roller 75 which interacts with a cam 76 supported by the carriage 12 and structured so as to interact by pushing on the rocker 73 when the inclination of the guide is lower than a preset value, so that in this case the friction means 60 are actuated, rigidly coupling the second and third gears 51 and 53 and accordingly rigidly rotationally coupling the main driving pinion 21 and the stabilizer pinion 30.
  • the cam 76 allows to disengage the friction means 60, so that the stabilizer pinion 30 rotates freely with respect to the main driving pinion 21, avoiding any forcing.
  • the main driving pinion 21 and the stabilizer pinion 30 are rotationally rigidly coupled, avoiding the possibility of undesirable losses of pitch which may cause forcing, since the stable coupling of the two pinions to the lower guide and to the upper guide occurs only in preset portions, with automatic functional uncoupling, so that it is possible to have optimum operation at all times.
  • the materials used, as well as the contingent shapes and dimensions may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Handcart (AREA)
  • Control Of Position Or Direction (AREA)
  • Numerical Control (AREA)
  • Steps, Ramps, And Handrails (AREA)
EP00100177A 1999-05-20 2000-01-12 Treppenaufzug für eine Treppe mit variabeler Steigung Expired - Lifetime EP1053968B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999MI001114A ITMI991114A1 (it) 1999-05-20 1999-05-20 Gruppo servoscala per tratti di rampa ad inclinazione variabile
ITMI991114 1999-05-20

Publications (3)

Publication Number Publication Date
EP1053968A2 true EP1053968A2 (de) 2000-11-22
EP1053968A3 EP1053968A3 (de) 2001-03-07
EP1053968B1 EP1053968B1 (de) 2005-04-06

Family

ID=11383009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100177A Expired - Lifetime EP1053968B1 (de) 1999-05-20 2000-01-12 Treppenaufzug für eine Treppe mit variabeler Steigung

Country Status (5)

Country Link
EP (1) EP1053968B1 (de)
AT (1) ATE292596T1 (de)
DE (1) DE60019190T2 (de)
ES (1) ES2238944T3 (de)
IT (1) ITMI991114A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1382558A1 (de) * 2002-07-18 2004-01-21 Otto Ooms B.V. Treppenaufzug mit Linearmotorantrieb
US7296659B2 (en) 2002-10-22 2007-11-20 Bc Lift A/S Staircase lift and a guide rail for such a lift
RU2468946C2 (ru) * 2011-01-21 2012-12-10 Алексей Иванович Карпенков Подвесной лестничный подъемник
KR101419498B1 (ko) 2012-08-02 2014-08-13 영신기술 주식회사 재난용 비상탈출 장치
ITUA20163820A1 (it) * 2016-05-26 2017-11-26 Vimec Srl Dispositivo servoscala a poltroncina con trasmissione semplificata.
CN116281507A (zh) * 2023-04-10 2023-06-23 江苏海洋大学 一种应用于老旧楼房楼梯改造的老人爬楼辅助运梯

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1234715B (it) * 1989-04-19 1992-05-26 Vimec Srl Impianto di risalita e discesca scale per inabili
DE4122855A1 (de) * 1991-02-14 1992-08-20 Hillenkoetter & Ronsieck Aufzug, insbesondere schraegaufzug
GB9325337D0 (en) * 1993-12-10 1994-02-16 Sunrise Medical Ltd Track and carraige assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1382558A1 (de) * 2002-07-18 2004-01-21 Otto Ooms B.V. Treppenaufzug mit Linearmotorantrieb
US7296659B2 (en) 2002-10-22 2007-11-20 Bc Lift A/S Staircase lift and a guide rail for such a lift
RU2468946C2 (ru) * 2011-01-21 2012-12-10 Алексей Иванович Карпенков Подвесной лестничный подъемник
KR101419498B1 (ko) 2012-08-02 2014-08-13 영신기술 주식회사 재난용 비상탈출 장치
ITUA20163820A1 (it) * 2016-05-26 2017-11-26 Vimec Srl Dispositivo servoscala a poltroncina con trasmissione semplificata.
WO2017202987A1 (en) * 2016-05-26 2017-11-30 Vimec S.R.L. Stairlift with simplified transmission
CN116281507A (zh) * 2023-04-10 2023-06-23 江苏海洋大学 一种应用于老旧楼房楼梯改造的老人爬楼辅助运梯

Also Published As

Publication number Publication date
DE60019190D1 (de) 2005-05-12
ITMI991114A1 (it) 2000-11-20
EP1053968B1 (de) 2005-04-06
ATE292596T1 (de) 2005-04-15
EP1053968A3 (de) 2001-03-07
DE60019190T2 (de) 2005-09-22
ES2238944T3 (es) 2005-09-16

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