Structure for coupling back cover with case band in wrist watch

Details Structure for coupling back cover with case band in wrist watch Structure for coupling back cover with case band in wrist watch

1980-12-22

1981-11-03

Weldon, Ulysses

Horology: time measuring systems or devices

Cases

368281, 368309, 368311, 368 88, G04B 3700

Patent

active

042989736

ABSTRACT:
A structure for coupling a back cover with a case band in a wrist watch which comprises a case band having a long groove on the outer wall of a band attaching portion, a spring member being fitted in said long groove of the case band so as to outwardly project a protruded portion of said spring member and a part thereof being fixed to said case band, a back cover having a side wall with a long hole bored at the position corresponding to that of said spring member, and an elastic member for energizing and engaging said back cover with said case band along the axial direction thereof so as to cover a module. According to this structure, a compact, thin and highly waterproof wrist watch can be assembled, while disassembly thereof can be effected by merely pushing a portion of said spring member protruded from said long hole thereinto.

REFERENCES:
patent: 4083178 (1978-04-01), Sekiguchi et al.
patent: 4223527 (1980-09-01), Tutiya et al.
patent: 4257118 (1981-03-01), Futaba et al.

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