Mounting arrangement for printed circuits in electronic watches

Details Mounting arrangement for printed circuits in electronic watches Mounting arrangement for printed circuits in electronic watches

1982-02-26

1984-07-17

Roskoski, Bernard

Horology: time measuring systems or devices

Chronological

With significant casing or mounting support structure

368316, G04C 2302, G04B 3700

Patent

active

044602812

ABSTRACT:
The screws 8 which fix the printed circuit 1 to the plate 2 of the body of the movement extend through portions 4a of the copper layer 4 of the printed circuit located beneath openings 11 formed in the substrate 3 of the printed circuit. The portions 4a of the metallic layer 4 may be preformed into dished parts which engage in depressions 12 in the plate 2. As a result of this arrangement, the heads 8a of the screws 8 are recessed into the printed circuit board and countersunk into the thickness of the plate `, which avoids all risk of inadvertent contact with the negative pole of the battery 6 which supplies the movement or with the metal strip 7 in contact with this negative pole.

REFERENCES:
patent: 4199931 (1980-04-01), Yokoyama
patent: 4241436 (1980-12-01), Bolzt et al.
patent: 4272838 (1981-06-01), Kasama et al.
patent: 4274630 (1981-06-01), Paratte
patent: 4296488 (1981-10-01), Nakayama
patent: 4351040 (1982-09-01), Aoki

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