Device for preventing folding of a lower joint for a one touch t

Details Device for preventing folding of a lower joint for a one touch t Device for preventing folding of a lower joint for a one touch t

1991-06-19

1993-03-23

Chilcot, Jr., Richard E.

Tent, canopy, umbrella, or cane

Portable shelter

Cone-shaped type

135106, 403 61, 403101, E04H 1536

Patent

active

051955512

ABSTRACT:
A device for preventing folding of a lower joint for a one touch type dome shaped tent is disclosed. If the upper joint is locked or released, the lower joint is also locked or released automatically. A connecting portion of the lower joint is provided with a round projection and with an elongate slot, and the middle segment is provided with a socket and a supporting step, in such a manner that the round projection can be mounted upon the supporting step. Further a coil spring is installed on the neck portion of the lower segment so that the leading end of the coil spring should able to push the tip of the socket.

REFERENCES:
patent: 807768 (1905-12-01), Otis
patent: 1039986 (1912-10-01), Merritt
patent: 1121977 (1914-12-01), Clark
patent: 1196952 (1916-09-01), Hubbard
patent: 1303846 (1919-05-01), Blauvelt
patent: 3184261 (1965-05-01), Young
patent: 4393541 (1983-07-01), Hujsak et al.
patent: 4750509 (1988-06-01), Kim
patent: 4850069 (1989-07-01), Harper
patent: 5023968 (1991-06-01), Diehl et al.
patent: 5058844 (1991-10-01), Webb

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