Setting device for analog-display motor vehicle clocks

Horology: time measuring systems or devices – Regulating means – For setting

Patent

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Details

368319, G04B 2702, G04B 2900

Patent

active

043204813

ABSTRACT:
A setting device for analog-display motor vehicle clocks having an operating knob made of injection-molded plastic, which knob is turnable and elastically displaceable axially within a central passage opening in the cover glass against the action of a spring, the knob being provided with a driver for engagement into the pointer shaft. The driver, and at least two guide pins which are provided with grappling hooks, are formed of plastic integrally in one-piece with the operating knob. The guide pins are dimensioned in such a manner with respect to their material and length that the operating knob is inserted from the front side of the cover glass through the passage opening with deflection of the hooks with the guide pins and is secured against falling out after the hooks engage through and return into their original unstressed position.

REFERENCES:
patent: 3204067 (1965-08-01), Brown
patent: 3492807 (1970-02-01), Kohlhagen
patent: 3641286 (1972-02-01), Berezowski
patent: 3928741 (1975-12-01), Comer
patent: 4063054 (1977-12-01), Hirata
patent: 4072004 (1978-02-01), Tanaka et al.
patent: 4201043 (1978-05-01), Tarusawa

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