Alarm mechanism (US Patent 4748602)

Patent number: 4748602 Granted: 1988-05-31 Filed: 1987-07-17 Inventors: Keiichi Yoshizawa (Tokyo, JP); Kastuya Moritaka (Tokyo, JP) Assignees: Seikosha Co., Ltd. (Tokyo, JP)

Abstract

An alarm mechanism for an alarm clock has an alarm hand and an hour hand mounted coaxially with respect to each other and the alarm hand and the hour hand are formed with integral hubs having cam grooves and cam pawls. The cam grooves and cam pawls are positioned with the same positional relationship with respect to the hub portions of the alarm hand and the hour hand