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Improvement for holding and loosening mechanism of closed device and improvement relative thereof

A technology for closing devices and loosening mechanisms, applied in the direction of connecting components, mechanical equipment, building construction, etc., can solve the problems of hospitals, sanatoriums or hotels during waking hours, inconvenience, etc.

Inactive Publication Date: 2009-03-18
STEPHENSON GOBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To achieve this, the doors must be closed, however when the building is occupied such as an office building, or when there is a large amount of movement of people within the building, such as a hospital, nursing home or hotel building during the waking hours of the occupants, this may not be possible. convenient

Method used

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  • Improvement for holding and loosening mechanism of closed device and improvement relative thereof
  • Improvement for holding and loosening mechanism of closed device and improvement relative thereof
  • Improvement for holding and loosening mechanism of closed device and improvement relative thereof

Examples

Experimental program
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Embodiment Construction

[0044] First refer to Figures 1 to 3 , which shows a holding device of a closing device indicated generally at 10 . The device includes a plate 12 and a magnet retaining / releasing mechanism 14 . Panel 12 may be attached to the door by any suitable means such as screws or similar fasteners. Plate 12 includes a base 16 , a joint face portion 18 and a flexible neck 20 connecting the base 16 to the face portion 18 .

[0045] The flexibility of this neck 20 makes it possible to accommodate slight misalignments between the plate 12 and the mechanism 14 . At least the face portion 18 of the plate 12 is made of a ferrous metal such as steel. Ferrous metal may be provided in an insert that fits into face portion 18 . Alternatively, the plate 12 as a whole may be made of ferrous metal.

[0046] The mechanism 14 includes a body 22, a permanent magnet 24 and a motor 26 as an actuating mechanism. The body 22 consists of two blocks 28 and 30 of ferrous metal, such as steel. Blocks 2...

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PUM

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Abstract

A closure retaining and releasing mechanism (14) comprising: a body (22) having spaced apart first and second pieces (28, 30) of ferrous material; having north and south poles (40,42) a magnet (24) mounted between said first piece and said second piece (28,30); and an actuating device operable such that the magnet ( 24) movement relative to said first and said second pieces (28, 30), wherein said magnet (24) is movable between a first position and a second position, in which said magnet (24) ) each pole (40, 42) is located completely within a corresponding block (28, 30) of the body (22), in a second position each pole (40, 42) is not completely located within the body (22) in the corresponding blocks (28, 30).

Description

technical field [0001] The present invention relates to a retaining and releasing mechanism for a closure, in particular but not exclusively to a door retainer for a fire rated door. A system for controlling and operating the closure retainer is also described. Background technique [0002] Fire doors are installed in buildings to prevent the spread of smoke and fire through the building in the event of a fire. To achieve this, the doors must be closed, however when the building is occupied such as an office building, or when there is a large amount of movement of people within the building, such as a hospital, nursing home or hotel building during the waking hours of the occupants, this may not be possible. Convenience. A common solution involves the use of a door retainer device operable to hold the fire door open and arranged to release the door when the fire alarm is sounded. The released door can thus be closed by means of a separate or integrated closing mechanism. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05C19/16E05B47/00
CPCE05B2047/0072E05C19/163E05B2047/0067Y10T292/11
Inventor 尼古拉斯·罗杰·查尔斯·戈达德萨拉·路易斯·杰克逊
Owner STEPHENSON GOBIN