GB2160174A

GB2160174A - An elevator for buildings

Info

Publication number: GB2160174A
Application number: GB08510417A
Authority: GB
Inventors: Josef Steinweg
Original assignee: Steinweg Hermann Co KG GmbH
Current assignee: Steinweg Hermann Co KG GmbH
Priority date: 1984-04-24
Filing date: 1985-04-24
Publication date: 1985-12-18
Also published as: SE8501833L; DE3415265A1; DE3415265C2; GB8510417D0; SE8501833D0

Abstract

An elevator (21) comprising an elevator mast (11) constructed of a plurality of sections (111, 112...) and a cage (21) which is guided along the mast (11) the cage (21) including an assembly bridge (41) which, at the end facing the mast (11), is outwardly pivotable from the platform enclosure frame of the cage (21) and has, on its free end, an upwardly pivotable stop member (42) provided with connection members (43) which extend rearwardly to the enclosure frame. Thus the safe assembly and disassembly of the mast from the cage is facilitated. <IMAGE>

Description

SPECIFICATION An elevator for buildings The invention relates to an elevator, more especially a building elevator of the type comprising a multi-sectional elevator mast and a cage which guided by the mast and moved up and down the mast by conveyor means.

Such elevators are mainly installed for lifting building material, but they may also be installed so that repairs can be carried out, especially in connection with buildings. The height of the elevator mast is determined by the uppermost required travelling plane for the cage and is achieved by the addition of mast sections as required. The mast may be more than 100 m high and is secured at intervals relative to the exterior wall of the building, adjacent to which the elevator is installed, by anchoring means which are inserted into the wall, the mast being connected to said anchoring means. In so far as the conveyor means for the elevator so permit, assembly and diassembly of the elevator mast are effected directly from the cage, whereby mast sections are progressively placed one upon the other or are removed successively one from the other, as required.However, it is difficult, and also dangerous, to effect both assembly and disassembly of the mast sections from the cage, and this also applies to the attachment or detachment of the anchoring means which secure the elevator mast, for example, to the wall of a building. In many cases, therefore, auxiliary equipment is also used for assembly purposes, possibly a mobile crane, but the jib length of such a crane is limited and, in consequence, the range of application of such a crane is also limited.

On the basis of the above-described proir art, the invention seeks to permit an elevator mast to be safely assembled and disassembled from the cage itself.

According to the present invention there is provided an elevator, more especially a building elevator, comprising a multi-sectional elevator mast and a cage which is guided along the mast and can be lifted up the mast by conveyor means, said cage comprising a platform and an enclosure frame for the platform, wherein a portion of the enclosure frame of the cage facing the mast has a lateral extension portion which protrudes beyond the mast and accommodates a flap member which is hingedly connected to the platform of the cage and is outwardly pivotable as far as the horizontal, an upwardly pivotable stop member being hingedly connected to said flap member on the end remote from the point at which the flap member is hingedly connected to the platform, said stop member being securable in its upwardly pivoted position relative to the flap member, flexible connection members extending rearwardly from the free end face of said flap member to the enclosure frame of the cage and being held taut when the flap member is in its horizontally pivoted position.

The outwardly pivoted, screened assembly brigde facilitates both the erection of the mast sections during assembly of the elevator mast and also the removal of the mast sections during disassembly of the mast. In addition, the attachment and detachment of the anchoring means are then also facilitated, such anchoring means securing the mast, for example, to the wall of a building.

A limit switch, which is actuated by the downwardly pivoted assembly bridge, ensures that it is impossible to switch-on the drive for lifting the cage during assembly or maintenance work.

The invention will be described further, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a plan view of an elevator provided with the cage which is formed according to the invention, the enclosure frame of the cage being sealed all-round; Figure 2 is a view corresponding to Figure 1, showing the assembly web in its outwardly pivoted position; and Figure 3 is a side view taken in the direction of arrow III of Figure 2.

A portion of an elevator mast 11 is shown which is formed from sections 111, 112, etc. A cage 21 is guided along said mast 11 and is lifted by means of a geared motor 32, which is associated with said cage 21 and is in operational engagement with a toothed rod or rack 31 provided on the mast 11. The elevator mast 11 is, for example, secured to the wall 16 of a building, which is not shown more fully, by anchoring means 17.

The cage 21 comprises a platform 211 having an enclosure frame comprised of walls 212, 212' 212" and 212"', and one of said walls which is not adjacent the mast 11 (wall 212' , for example), is outwardly pivotable to gain access to the cage 21 or to load or unload the cage 21, as required.

The wall 212 of the enclosure frame of the cage 21 faces the mast 11 and has an extension poriton 2121 which accommodates a flap member 41 - the so-called assembly bridge - which is hingedly connected (at pivots 411) to the platform 211 of the cage 21 and is outwardly pivotable, such pivotal movement being limited to 90 . An upwardly pivotable top portion 42 is hingedly connected (at pivots 421) to said flap member 41 on the free end remote from the point 411 at which the flap member 41 is hingedly connected to the platform 211, said stop member 42 being securable, in its upwardly pivoted position.Flexible, lateral enclosure members 43 and 43' extend rearwardly from the free end of said flap member 41 to the platform enclosure frame 212 and are of such dimensions that they are held taut when the flap member 41 and stop member 42 are in the outwardly and upwardly pivoted positions, respectively.

A stop 412 is provided, for example, on the flap member 41 to serve as a means for limiting the pivotal movement of the flap member 41 and abuts against the platform 211 when the flap member 41 is in its horizontal position (Figure 2).

Chains or cables are available for the lateral, flexible enclosure member 43, 43' of the outwardly pivoted assembly bridge 41. The stop member 42 of the outwardly pivoted assembly bridge 41 is preferably secured in its vertical position by means of a diagonal strut 422 which, on the one hand, is pivotally connected to the member 42 and, on the other hand, is attachable to the assembly bridge 41.

To achieve the outwardly pivoted position of the assembly bridge 41, the stop member 42 is initially pivoted upwardly and secured relative to the assembly bridge 41 when the diagonal strut 44, extending from the member 42, is attached to the assembly bridge 41. Subsequently, the assembly bridge is pivoted outwardly, i.e. downwardly, thereby causing the lateral enclosure members 43 and 43' of the assembly bridge 41 to be held taut.

Since it is possible to walk along the assembly bridge 41 when it is in its outwardly pivoted position, assembly of the mast 11 from the cage 21 is facilitated and mast sections, e.g. 112, can be added one above the other. Securement of the mast 11, for example, to the wall 16 of a building is also facilitated by anchoring means 17. Maintenance work on the elevator is also facilitated in this manner.

A limit switch 33 which is provided on the platform 211 of the cage 21, is actuated by the outwardly pivoted assembly bridge 41 and shuts off the drive 32 for lifting the cage 21 up the mast 11 when the assembly bridge 41 is in its outwardly pivoted position.

Once the assembly or maintenance work is completed, the assembly bridge 41 is pivoted upwardly once more, thereby completing the enclosure frame 212 of the cage 21 and is secured in its upwardly pivoted position.

Claims

ClAIMS

1. An elevator, more especially a building elevator, comprising a multi-sectional elevator mast and a cage which is guided along the mast and can be lifted up the mast by conveyor means, said cage comprising a platform and an enclosure frame for the platform, wherein a portion of the enclosure frame of the cage facing the mast has a lateral extention portion which protrudes beyond the mast and accommodates a flap member which is hingedly connected to the platform of the cage and is outwardly pivotable as far as the horizontal, an upwardly pivotable stop member being hingedly connected to said flap member on the end remote from the point at which the flap member is hingedly connected to the platform, said stop member being securable in its upwardly pivoted position relative to the flap member, flexable connection members extending rearwardly from the free end face of said flap member to the enclosure frame of the cage and being taut when the flap member is in its horizontally pivoted position.

2. An elevator as claimed in claim 1, wherein a means for limiting the pivotal movement of the flap member is provided in the form of a stop which is disposed on the underside of the flap member and abuts against the platform of the cage when the flap member is in its horizontal position.

3. An elevator as claimed in one of claims 1 and 2, wherein the upwardly pivoted stop member is secured relative to the flap member by means of diagonal struts which are pivotally connected to the stop member and are attachable to the flap member.

4. An elevator as claimed in one of claims 1 to 3, wherein a limit switch for controlling the drive of the elevator is provided on the platform of the cage and is actuated by the horizontally pivoted flap member.

5. An elevator substantially as herein described with reference to the accompanying drawings.