Control barrier for people
OwnerLaurence Patrick Wetterninventor
Life of this patent
Estimating the term…
Abstract
A barrier for the control of people has a stand (10,11) supporting a housing (12) for a flexible band (14) extensible from the housing through a slot (15) in the side wall thereof. The spool and band are removable through the open upper end of the housing (12) and a tensioning cassette (16) for the spool is engaged with the housing and is drivingly coupled to the spool (13). A spring tensioner (29) acts between an outer wall (26) of the cassette and a drive shaft (30) for the spool. Tension may be applied to the spring (29) by freeing the cassette (16) from the housing (10) while leaving the drive shaft (30) connected to the spool (13) and then rotating the cassette, relative to the housing.
Claims17
A barrier for the control of people comprising:
- a stand;
- a housing for a flexible band extensible therefrom, said the housing being supported by the stand and having a side wall, an open upper end and a slot in the side wall;
- a spool rotatably received in the housing and carrying a flexible band extensible from the housing through said slot, the spool and band being removable through the open upper end of the housing;
- and
- a tensioning cassette for the spool, said cassette having an outer wall, a drive member rotatably mounted within the cassette, and a spring tensioner acting between the outer wall and the drive member and arranged to be charged by relative rotation between the outer wall and the drive member, the cassette being provided as a unit engageable with and removable from said open upper end of the housing, and the arrangement of the housing and cassette being such that on fitting the cassette to the housing, the drive member is engageable with the spool while the outer wall of the cassette remains free of the housing so that rotation of the outer wall tensions the spring tensioner, whereafter the outer wall of the cassette is engaged with the housing.
A barrier for the control of people comprising:
- a stand;
- a housing for a flexible band extensible therefrom, said housing being supported by the stand and having a side wall, an open upper end and a slot in the side wall;
- a spool rotatably received in the housing and carrying a flexible band extensible from the housing through said slot, the spool and band being removable through the open upper end of the housing;
- and
- a tensioning cassette for the spool, said cassette having:
- an outer wall releasably engageable with the open upper end of the housing by means of one of a bayonet connection and screw-threaded connection;
- a cap releasably connectable to the cassette once the cassette has been connected to the housing, said cap when fitted to the cassette serving to lock the connection between the cassette and the housing to prevent removal of the cassette from the housing until the cap has been removed from the cassette;
- a security lock for the cap, to resist unauthorised removal of the cap from the cassette, said security lock comprising a cam rotatably mounted internally of the cap and receivable in a slot in the cassette, the cam having a turning element operable by an appropriately formed tool or key;
- a drive member rotatably mounted in the cassette and engageable with the spool, the drive member being rotatable with respect to the outer wall;
- and
- a spring tensioner acting between the outer wall and the drive member and arranged to be charged by relative rotation between the outer wall and the drive member, the arrangement being such that the drive member is engageable with the spool while the cassette outer wall remains free of the housing so on connecting the cassette to the housing, rotation of the outer wall tensions the spring tensioner whereafter the outer wall cassette is engaged with the housing.
Dependencies are inferred from the claim text.