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WO2000063103A1 - Verrouillage de securite de monte-escalier - Google Patents

Verrouillage de securite de monte-escalier Download PDF

Info

Publication number
WO2000063103A1
WO2000063103A1 PCT/GB2000/001305 GB0001305W WO0063103A1 WO 2000063103 A1 WO2000063103 A1 WO 2000063103A1 GB 0001305 W GB0001305 W GB 0001305W WO 0063103 A1 WO0063103 A1 WO 0063103A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
carriage
main section
end part
stairlift
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.)
Ceased
Application number
PCT/GB2000/001305
Other languages
English (en)
Inventor
Philip Edward Woodwards
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.)
Stannah Stairlifts Ltd
Original Assignee
Stannah Stairlifts Ltd
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 Stannah Stairlifts Ltd filed Critical Stannah Stairlifts Ltd
Publication of WO2000063103A1 publication Critical patent/WO2000063103A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B66B9/0846—Guide rail

Definitions

  • This invention relates to stairlifts and, in particular, to a stairlift assembly in which the rail is fitted with a hinge to allow an end section of the rail to be pivoted out of end alignment with the remainder thereof, thereby reducing the effective length of the assembly.
  • Stairlift rails are often provided with a hinge to enable an end section thereof to be pivoted out of end alignment with the remainder of the rail, and into a stowed position. This has the effect of reducing the overall length of the assembly and, typically, increases access to doorways or landings when the stairlift is not in use.
  • the hinge may be operated manually but, typically, is operated by its own electric motor.
  • the safety mechanisms When the stairlift controls are hard-wired, the safety mechanisms typically comprise contact switches operated by the hinged rail section. However, it is also common to control movements of the carriage and the hinge by radio frequency devices, but many such devices currently available do not comply with the operating standards imposed by the accrediting authorities of some countries in which stairlifts are sold.
  • One acceptable method currently used to address this problem is to use an induction loop arrangement to cut power to the carriage motor while the hinged rail section is otherwise than in operating position.
  • induction loop systems can be regarded as unsightly and are expensive to install.
  • the invention provides a stairlift assembly including:
  • a stairlift rail comprising a fixed main section and at least one end part hingedly connected to said main section, said at least one end part being displaceable about the hinged connection out of end alignment with said main section ;
  • a carriage displaceable along said rail, said carriage including an electric drive motor and safety cut-out means operable to cut power to said motor if said carriage encounters an obstruction whilst moving along said rail;
  • interlock means constructed, arranged and operable to place a mechanical stop on said main section, in the path of said safety cut-out means, as said at least one end part is moved out of end alignment with said main section.
  • said stairlift assembly further includes radio control means operable to control power to said drive motor.
  • said assembly still further includes a hinge motor operable to hinge said at least one end part with respect to said main section; and hinge control means operable to control the operation of said hinge motor.
  • said hinge control means comprises further radio control means.
  • said rail is hollow and said interlock means is mounted substantially within said rail.
  • said mechanical stop comprises a pin projecting through said rail into the path of said safety cut-out means, said interlock means further including an operating part contactable with said at least one end part and operable to displace said pin into and out of the path of said safety cut-out means.
  • the invention provides a stairlift assembly including:
  • a stairlift rail comprising a fixed main section and at least one end part hingedly connected to said main section, said at least one end part being displaceable out of end alignment with said main section;
  • a hinge drive motor operable to displace said at least one end part with respect to said main section
  • radio control means constructed and arranged to operate said hinge drive motor and said carriage drive motor; and mechanical safety interlock means operable, in the event of displacement of said at least one end part out of end alignment with said main section, to prevent movement of said carriage into contact with said at least one end part.
  • Figure 1 shows a plan view of a stairlift rail provided with interlock means according to the invention ;
  • Figure 2 shows, in a larger scale, safety interlock means for use in a stairlift assembly according to the invention.
  • Figures 3 and 4 part sectional, elevational, views of a stairlift show: rail fitted with interlock means according to the invention with the hinged rail section in a closed and partially open positions respectively.
  • a stairlift assembly 10 which includes a rail 12 in the form of a fixed rail section 14 and an end section 16 which is hingedly mounted to the fixed section 14 so as to pivot about a hinge axis 18.
  • the end section 16 pivots between a 'down' position as shown in figure 3 in which the end section 16 is in end alignment with the fixed section 14, and a raised or stowed position which is shown partially in figure 4.
  • the section 16 of the rail 12 may be folded out of the way of doorways or congregating areas when the stairlift assembly is not in use.
  • the assembly 10 further includes a stairlift carriage shown partially at 20, the carriage including an electric drive motor (not shown) which serves to move the carriage along the rail assembly 12 in the conventional manner.
  • a suitable interlock is generally not a problem where the controls for the carriage are hard-wired, but effective interlocking is more difficult to achieve when, as is often the case, the carriage is controlled via a radio link.
  • the hinged end member 16 is typically moved between the raised and down positions by means of a further electric motor (not shown) also controlled by a radio link, but at a different frequency from that controlling movement of the carriage 20.
  • a further electric motor not shown
  • a mechanical interlock system 22 is provided. Since the rail 12 is typically formed from a hollow extrusion, the system 22 is conveniently located substantially within the fixed rail section 14.
  • the interlock mechanism includes a mechanical stop 24 which, when the rail section 16 is in any position other than the down position shown in Figure 3, projects through a hole 26 ( Figure 1) provided in the upper wall section 25 of the fixed rail section 14, to lie in the path of safety pad 28 forming part of the carriage 20. As the safety pad 28 engages with the upstanding stop 24 it operates in the conventional manner cutting power to the carriage drive motor.
  • the interlock system 22 further includes a actuating part 30 which contacts the hinged rail part 16 and, depending on whether the rail section 16 is down or raised, causes the mechanical stop 24 to be retracted or extended as shown respectively in figures 3 and 4.
  • the interlock assembly 22 includes a base mounting channel member 32 which is held in contact with the underside of rail top wall section 25.
  • a first actuating arm 34 is pivotally mounted in channel member 32, the arm 34 pivoting about pivot axis 36.
  • Actuating part 30 is formed on the outer end of first actuating arm 34.
  • the assembly 22 includes a second actuating arm 38 mounted to pivot about axis 40, the second arm 38 carrying the mechanical stop 24 at the outer end thereof.
  • a compression spring 42 is provided to bias arm 38 in a clockwise direction about pivot axis 40 and arm 34 in a counter-clockwise direction about axis 36.
  • the present invention provides a simple yet effective form of mechanical interlock particularly suitable for use in radio controlled stairlift installations which operates simply and reliably whenever a hinged stairlift rail section is in anything other than the down position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

L'invention concerne un verrouillage de sécurité (22) incorporé dans un rail (12) de monte-escalier pourvu d'une articulation (18). Le verrouillage prend la forme d'une barrière mécanique (24) projetée dans le chemin du chariot (20) du monte-escalier, de façon à venir en contact avec des tampons de sécurité (28) incorporés dans ledit chariot, lorsque l'extrémité de la section articulée (16) de rail n'est pas alignée avec le reste du rail (14). Lorsque les sections de rail (14, 16) sont alignées, la barrière (24) se rétracte hors du passage de chariot. L'agencement de verrouillage est particulièrement approprié pour des systèmes de monte-escalier dans lesquels le déplacement du chariot et de l'articulation est télécommandé.
PCT/GB2000/001305 1999-04-15 2000-04-07 Verrouillage de securite de monte-escalier Ceased WO2000063103A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9908569.8 1999-04-15
GBGB9908569.8A GB9908569D0 (en) 1999-04-15 1999-04-15 Improvements in or relating to stairlifts

Publications (1)

Publication Number Publication Date
WO2000063103A1 true WO2000063103A1 (fr) 2000-10-26

Family

ID=10851545

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/001305 Ceased WO2000063103A1 (fr) 1999-04-15 2000-04-07 Verrouillage de securite de monte-escalier

Country Status (2)

Country Link
GB (1) GB9908569D0 (fr)
WO (1) WO2000063103A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2367808A (en) * 2000-08-10 2002-04-17 Sunrise Medical Ltd A stairlift assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174362A (en) * 1983-02-17 1986-11-05 Antony Stopher Stairlift track
WO1999042399A1 (fr) * 1998-02-23 1999-08-26 Otto Ooms B.V. Chaise-escalier et systeme de rails destine a cette chaise-escalier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2174362A (en) * 1983-02-17 1986-11-05 Antony Stopher Stairlift track
WO1999042399A1 (fr) * 1998-02-23 1999-08-26 Otto Ooms B.V. Chaise-escalier et systeme de rails destine a cette chaise-escalier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2367808A (en) * 2000-08-10 2002-04-17 Sunrise Medical Ltd A stairlift assembly
GB2367808B (en) * 2000-08-10 2004-06-16 Sunrise Medical Ltd A carriage for a stairlift assembly, and a stairlift assembly

Also Published As

Publication number Publication date
GB9908569D0 (en) 1999-06-09

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