RETRACTABLE SAFETY DEVICE - BLACK ROBERT DAVID

Title:

RETRACTABLE SAFETY DEVICE

Document Type and Number:

WIPO Patent Application WO/2009/138772

Kind Code:

A3

Abstract:

A retractable safety device for use in regulating entry to a hazard area from an access area comprising: a parallel array of members each member in the array having- a first end pivotally attached to a first side rail to which each member is pivotally attached by a first end of each array member; a second side member to which each member in the array is pivotally attached by a second end of each array member; the array and first and second side arrays being displaceable in a plane between a first, working, configuration in which the first and second side members are relatively wide apart; and a second, stowage, configuration where the first and second side members are relatively close; at least two slide arms, each slide arm being located on, and pivotally connected to, the second side member; the slide arms being spaced apart on the second side member; a slider mounted on each slide arm adapted to slide along the slide arm on which it is mounted, each slider including means whereby the slider can be secured to a region in or near the hazard area so as to permit the slide arm to be displaceable relative to the slider; and stop means to limit the extent of travel of the slide arm relative to the slider so as to define the second stowage configuration; the device providing that with the array in the first, working, configuration the array serves to obstruct passage from the access area into the hazard area; and with the array in the second, storage, configuration the array is withdrawn from obstructing passage from the access area into the hazard area.

Inventors:

BLACK ROBERT DAVID (GB)
BLACK JOHN ALEXANDER (GB)

Application Number:

PCT/GB2009/050460

Publication Date:

January 30, 2014

Filing Date:

May 05, 2009

Export Citation:

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Assignee:

BLACK ROBERT DAVID (GB)
BLACK JOHN ALEXANDER (GB)

International Classes:

E04H5/06; E02D29/14; E06B9/06

Foreign References:

GB1397250A	1975-06-11
DE8906406U1	1989-09-14
US6539678B1	2003-04-01