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Belt and sheave arrangements with linear guidance for elevators

A belt and elevator technology, used in transportation and packaging, lifting equipment in mines, elevators, etc., can solve the problem of not always reliably preventing the lateral sliding of the belt and the sheave.

Inactive Publication Date: 2021-05-28
INVENTIO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been observed that even such countermeasures do not always reliably prevent the described lateral slippage between the belt and the sheave

Method used

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  • Belt and sheave arrangements with linear guidance for elevators
  • Belt and sheave arrangements with linear guidance for elevators
  • Belt and sheave arrangements with linear guidance for elevators

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0067] figure 1 , figure 2 and image 3 An exemplary embodiment of a belt 1 for a suspension traction device of an elevator is shown in plan view, cross section and longitudinal section. Belt 1 comprises a plurality of longitudinal load bearing members 3 and a sheath 5 enclosing these load bearing members 3 .

[0068] The carrying member 3 may be a wire, a string, a cord or the like. The carrying member 3 may be made of metal or synthetic material (for example carbon fiber or similar). The carrier member 3 may have a cross-sectional dimension in the range of a few millimeters to a few centimeters. For example, in the typical case of a load-bearing member having a circular cross-section, the diameter of the load-bearing member may generally be between 1 mm and 5 cm, preferably between 0.5 cm and 3 cm. The carrier member 3 is arranged along the longitudinal extension direction 2 of the elongated belt 1 . Thanks to the plurality of load-carrying members 3, the belt 1 is ad...

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PUM

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Abstract

The invention proposes a belt (1) and a sheave (21) for an elevator. The belt (1) comprises a plurality of elongated load bearing members (3) and a sheath (5). The sheath (5) is provided with one or more recesses (7) at the center of the sheath (5) along a direction parallel to the direction of extension of the belt (1). Arranged in a straight line. Said recess (7) has a relatively deep depth extending at least down to the level between two adjacent load bearing members (3). Preferably, the recess (7) is arranged as a slit penetrating through the sheath (5). Furthermore, the recess (7) has lateral sides (11) arranged at an angle greater than 60° to the plane of extension of the belt (1). The sheave (21) comprises a body (23) with a cylindrical traction surface (25) and a sprocket (27). The sprocket (27) is arranged coaxially with the cylindrical traction surface (25) and is arranged on the cylindrical traction surface (25) with respect to the longitudinal extension direction (45) of the cylindrical traction surface (25). ) at the center. One or more teeth (33) of the sprocket (27) extend outwardly beyond the cylindrical traction surface (25). The sprocket (27) is connected to the main body (23) via a bearing so as to be rotatable relative to the main body (23). The teeth (33) of the sprocket (27) at the sheave (1) can engage and cooperate with the recesses (7) or slits of the belt (1) to prevent the belt (1) from Any lateral slip or jump on the traction surface (25) of the sheave (21).

Description

[0001] field of invention [0002] The invention relates to a belt for a suspension traction device of an elevator. Furthermore, the invention relates to a sheave to be applied in an elevator. Finally, the invention relates to an elevator comprising such a belt and a sheave. Background technique [0003] Elevators generally include elevator cars in which passengers or goods can be transported. In a common type of elevator, the elevator car is suspended from a suspension traction device (STM, sometimes called a suspension traction medium). Such hitch hitches typically include one or more ropes or straps. The STM can be displaced using a sheave acting as a motor-driven traction sheave, so that the elevator car suspended therefrom is for example displaced vertically throughout the elevator shaft. Furthermore, one or more sheaves used as pulleys can be used in elevators, for example to suspend an elevator car and / or a counterweight. [0004] In modern elevators, slender belts...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B7/06B66B15/02B66B15/04
CPCB66B7/062B66B15/02B66B15/04
Inventor 艾简·R·V·纳瑞德罗希特·拉杰
Owner INVENTIO AG