Device to automatically roll up bands

Details Device to automatically roll up bands Device to automatically roll up bands

1998-10-13

1999-12-07

Walsh, Donald P.

Winding, tensioning, or guiding

Reeling device

With spring motor

242375, 160315, B65H 7548

Patent

active

059969237

ABSTRACT:
The present invention automatically rolls up bands, such as curtains, sunshades and mobile panes. The present invention consists of a tubular structure which incorporates in its interior a spindle with two sections threaded in opposite directions acting, thorough rotation, upon corresponding mobile structures on each side, displacing them and causing a compression or traction of a spring placed between them. The tubular structure has in its interior side longitudinal protuberances, which fit into corresponding slits of the mobile structures, thus rotating as they move.

REFERENCES:
patent: 1266716 (1918-05-01), Rolland
patent: 1366340 (1921-01-01), Anderson
patent: 1641506 (1927-09-01), Smurr
patent: 1766746 (1930-06-01), Heckman
patent: 4033397 (1977-07-01), McKee
patent: 4427050 (1984-01-01), Toppen
patent: 4429729 (1984-02-01), Winslow
patent: 4482137 (1984-11-01), Gavagan et al.
patent: 4523620 (1985-06-01), Mortellite
patent: 5078198 (1992-01-01), Tedeschi
patent: 5275223 (1994-01-01), Magro et al.

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