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A motor for deploying and retrieving a shutter or curtain and a curtain or shutter- deploying apparatus and a method of deploying a curtain or shutter

A motor and curtain technology, which is used in the field of equipment for unfolding shutters or curtains, motors for unfolding and retracting shutters or curtains, and equipment for unfolding and retracting curtains or shutters, which can solve the problems of motor wear and damage of components

Inactive Publication Date: 2019-06-21
DOOR MAINTENANCE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, such high speed deployments can cause wear and / or damage to components such as motors

Method used

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  • A motor for deploying and retrieving a shutter or curtain and a curtain or shutter- deploying apparatus and a method of deploying a curtain or shutter
  • A motor for deploying and retrieving a shutter or curtain and a curtain or shutter- deploying apparatus and a method of deploying a curtain or shutter
  • A motor for deploying and retrieving a shutter or curtain and a curtain or shutter- deploying apparatus and a method of deploying a curtain or shutter

Examples

Experimental program
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Embodiment Construction

[0037] will now refer to figure 1 Examples of embodiments of motors and devices for deploying and retracting a shade are described. This device is indicated by the reference number 1 and comprises a curtain C which is deployed and retracted by the device 1 . In this example, curtain C is a fire curtain. The device 1 comprises a roller D for carrying the curtain and a motor 10 for controlling the roller D. The motor 10 comprises a rotor, a brake 3, a clutch 20 and a gearbox 6, the rotor (not shown) being arranged to rotate the drum D such that the curtain is extended and retracted. The drum D is mounted on a housing 50 coupled to the rotor. In normal operating mode, power is supplied to the device. When electric power is supplied to the apparatus, electric power is supplied to the brake 3 which causes the brake to be applied and thus inhibits the rotation of the drum D and the movement of the curtain C. When the curtain C needs to be moved (eg if a fire is detected or duri...

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PUM

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Abstract

A motor is provided for deploying and retrieving a shutter or curtain, the motor comprising: a rotor and a stator, the rotor being rotatable to cause movement of a shutter or curtain, a brake for inhibiting movement of the rotor, the brake comprising a first brake portion coupled to the stator, a second brake portion coupled to the rotor, and a bias means, the brake being operable between a braking mode in which the first and second brake portions are in a closed configuration and in which rotation of the rotor is inhibited and a release mode in which the first and second brake portions are inan open configuration and in which rotation of the rotor is permitted, the brake being arranged to be in the release mode in the absence of electrical power being supplied to the brake; the brake being configured so that in the release mode the bias means urges the first and second brake portions into contact with one another to resist, but not prevent, rotation of the rotor. An apparatus for deploying and retrieving a shutter or curtain and a method of deploying a curtain are also provided.

Description

Background technique [0001] The present disclosure relates to motors for deploying and retracting curtains or shutters (such motors are commonly, but not exclusively, referred to as tubular motors). [0002] The present invention relates to the deployment and retraction of shutters and curtains, such as fire curtains and safety shutters. More particularly, but not exclusively, the present invention relates to motors for deploying and retracting shutters or curtains. The invention also relates to a device for deploying and retracting a curtain or shutter. The invention also relates to a method of unrolling a shutter or curtain. [0003] GB2320944 describes a motor and brake arrangement for a barrier such as a fire curtain. In the absence of electricity, this flap falls under the influence of gravity. Some such baffles have been found to drop very quickly, depending on the weight of the weighting bars that are usually attached to the baffle. When deployed, the high speed of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/102E06B9/80E06B9/88E06B9/72
CPCE06B9/72E06B9/88E06B2009/807H02K7/1025H02K2207/03H02K2213/06A62C2/24E06B9/80E06B9/82H02P3/04
Inventor 安德鲁·麦凯约翰·奥沙利文
Owner DOOR MAINTENANCE GROUP