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Combination lock

  • US 4,770,013 A
  • Filed: 10/26/1987
  • Issued: 09/13/1988
  • Est. Priority Date: 03/31/1987
  • Status: Expired due to Term
First Claim
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1. A combination lock comprising a locking mechanism wherein a cam plate is fixed to a shaft member rotated by finger operation or key operation, an operation shaft which is disposed in connection with this locking mechanism and defines operation of the shaft member and a dial lock having a plurality of dials which are journaled on this operation shaft through a bush and defines movement of the operation shaft, comprising:

  • a mechanism which sets an arbitrary numeral for unlocking for each dial of said dial lock, anda dial restoring mechanism which rotates each dial all together by a push button operation and restores numeral of each dial to the position of zero.

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