Opening lock for a sunshade

Details Opening lock for a sunshade Opening lock for a sunshade

1992-05-22

1993-02-09

Chilcot, Jr., Richard E.

Tent, canopy, umbrella, or cane

Umbrella

Runners and notches

135 39, 135 40, 403108, 403328, A45B 2506

Patent

active

051846390

ABSTRACT:
An improved opening lock for use in a sunshade or a parasol which is housed in a cavity defined on the shaft of the sunshade. The present opening lock has a stop block having a smoothly curved guide bottom at the front end and a bias spring disposed behind the stop block and a fixing element for mounting the spring, and a cover plate which confines the stop block and the spring and the fixing element inside the cavity so that the runner of the sunshade slidably disposed on the shaft is able to move against the lock, pushing the lock into the cavity when the runner traveling upward to make the sunshade open, and the stop block is able to pop out when the runner passing the same and to support the runner in place, keeping the sunshade opened. To close the sunshade, the stop lock must be pushed into the cavity to permit the runner slide downward.

REFERENCES:
patent: 3306127 (1967-02-01), Rieger
patent: 3377966 (1968-04-01), Bates et al.
patent: 3680571 (1972-08-01), Houston
patent: 3980409 (1976-09-01), Turner
patent: 4317387 (1982-03-01), Myers et al.
patent: 4577837 (1986-03-01), Berg et al.

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