Lock structure for box

Details Lock structure for box Lock structure for box

2006-12-15

2008-09-30

Patel, Dhiru R (Department: 2831)

Electricity: conductors and insulators

Boxes and housings

C174S058000, C174S135000, C439S535000, C248S906000

Reexamination Certificate

active

07429700

ABSTRACT:
A lock structure for a box includes a first box member having a retaining projection, and a second box member having an elastic retaining arm. The retaining arm has at its distal end a retaining portion for engagement with the retaining projection. The first box member has an arm restraint rib which restricts a releasing movement of the retaining arm in a condition in which the retaining arm and the retaining projection are engaged with each other. When the arm restraint rib is pressed by the elastic retaining arm, the arm restraint rib is deformed by a pressing force of the elastic retaining arm. A retaining distance of the retaining projection relative to the retaining portion of the elastic retaining arm is larger than a gap between the elastic retaining arm and the arm restraint rib in the engaged condition.

REFERENCES:
patent: 2538661 (1951-01-01), Vischer, Jr.
patent: 3391967 (1968-07-01), Schreyer
patent: 5378174 (1995-01-01), Brownlie et al.
patent: 6113414 (2000-09-01), Fukuda
patent: 7214875 (2007-05-01), Gretz
patent: 7253359 (2007-08-01), Chen et al.
patent: 05-147665 (1993-06-01), None

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