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Fall arrest gear for service doors with soft curtains

A transmission device and anti-fall technology, which is applied to door/window protection devices, suspension devices of wing sashes, windows/doors, etc., can solve the problems of oil leakage, cannot be automatically detected, and expensive

Active Publication Date: 2015-11-25
SOFINECO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The reduction gear also brings several problems: it may leak oil, the fastening device of all brands needs to be standardized, the price is expensive, etc.
Some of these components are oversized because they cannot be automatically detected

Method used

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  • Fall arrest gear for service doors with soft curtains
  • Fall arrest gear for service doors with soft curtains
  • Fall arrest gear for service doors with soft curtains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 The service door 1 shown comprises two jambs 2 and 3 which are generally fixed against the vertical wall of the opening to be closed.

[0035] The opposed vertical jambs 2 and 3 are connected together at the upper part of the service door 1 by a drive shaft or drum 4 which moves the flexible curtain 5 between the open position and the closed position move.

[0036] It should be noted that flexible curtains generally comprise sleeves into which transverse reinforcing beams are inserted, the ends of said beams cooperating with guides (not shown) provided on each jamb 2 and 3 forming slideways.

[0037] Each guide may consist of two opposing slides (not shown) comprising, for example, two tensioned flexible bands or two semi-rigid or rigid blades positioned opposite each other so that 2 and 3 and their entire height form a slideway for guiding the soft curtain or curtain 5.

[0038] The service door 1 including the anti-fall transmission 6 comprises, firstly, a...

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PUM

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Abstract

An anti-fall transmission device for a handling door (1) having a flexible curtain (5) to be stacked or rolled about a drive shaft (4) during the movements thereof between an open and a closed position, includes a separate electric motor or gear motor (7) attached along a rotational axis which is offset and parallel to that of the drive shaft (4), as a protective anti-fall device (8) for connecting the motor or the gear motor (7) to the drive shaft (4) and for preventing the flexible apron (5) from accidentally falling.

Description

technical field [0001] The invention relates to a fall arrest gear for a roll-up or folding service door having a soft curtain movable from a closed position to an open position and vice versa. Background technique [0002] Fall arrestors are known, in particular those involving doors with metal curtains. It has been noted that a door with a metal curtain runs at a speed of about 0.2 meters per second, which corresponds to a drive shaft of 16 revolutions per minute. [0003] Fall arresters for service doors are known, which enable the fixing of shafts for rolling or folding curtains after failure of the drive elements. [0004] European patent EP1739274, filed by the applicant, discloses a fall protection device comprising a structure mounted on a drive shaft capable of compressing a spring when the flexible rolling or folding curtain of a vertical lift service door is lowered. [0005] As is known, all commercially available speed doors are driven by a gear motor type sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B9/70E06B9/84E05D13/00
CPCE06B9/84E05D13/003E05Y2900/00E05Y2900/106E06B9/70
Inventor A-S·潘塞利R·西蒙
Owner SOFINECO