Watch casing with wrist band switch

Details Watch casing with wrist band switch Watch casing with wrist band switch

1990-03-09

1991-05-28

Miska, Vit W.

Horology: time measuring systems or devices

Cases

Wrist worn

368204, 224165, G04B 3712, G04B 100

Patent

active

050200399

ABSTRACT:
A band base of the wrist band is formed with a cavity for receiving therein a switch member. The band base is formed of elastomer or thermoplastic flexible material and is formed or molded integrally with an internal frame of the watch casing. A band cover is disposed on the band base to cover the cavity thereof. The band cover is molded around its periphery with material comparable to that of the band base by means of a metal mold which has a flow pass covering borders between the band cover and the band base. Further, the internal frame connected to the band base is provided with a holding member for holding and fixing the switch member without engagement to the band base itself such that the switch member can be inserted into the cavity of the band base. Moreover, in order to avoid inadvertent operation of the switch member due to bending of the wrist band, a spacer is disposed around switch contacts of the switch member between the band cover and the switch member so as to maintain a constant spacing therebetween.

REFERENCES:
patent: 3971207 (1976-07-01), Murakami et al.
patent: 4194355 (1980-03-01), Mishida
patent: 4255801 (1981-03-01), Ode et al.
patent: 4817065 (1989-03-01), Usui et al.

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