Headrail hardware for hanging window coverings

Details Headrail hardware for hanging window coverings Headrail hardware for hanging window coverings

1983-12-27

1986-11-18

Foss, J. Franklin

Flexible or portable closure, partition, or panel

Roll type

Shiftable position roll

160 84R, 160171, A47H 100

Patent

active

046230122

ABSTRACT:
A capstan based system for pulling and accumulating the pull-cords used to lift hanging window coverings from their bottoms. A cylindrical capstan is supported in bearings so that it is free to rotate and move axially. A splined connection to a holding device permits controlled rotation and locking of the capstan. Each of one or more cords is attached to the capstan by means of a clip which can be easily positioned to adjust the position and length of its cord. As the capstan is turned, the cords wind onto the capstan in a single layer due to the camming action of a specially configured camming surface. The capstan begins to move laterally when sufficient friction has developed between the capstan and the cord which has been wound onto it. This provides space for the cord to wind onto the capstan in a single layer. During unwinding of the cord, a guiding surface, over which the cord moves, pulls the capstan back toward its original position. The camming and guiding surfaces can be made symmetric so that bi-directional operation of the system is possible.

REFERENCES:
patent: 1068306 (1913-07-01), Boughton
patent: 1342527 (1920-06-01), Cahill
patent: 1848742 (1932-03-01), Oulsman et al.
patent: 1894833 (1933-01-01), Ruby et al.
patent: 2250106 (1941-07-01), Lorentzen
patent: 2520629 (1950-08-01), Esposito
patent: 3246685 (1966-04-01), Anderson et al.
patent: 3352349 (1967-11-01), Hennequin
patent: 3487875 (1970-01-01), Shukat et al.

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