Patent ID: 6345523
Filing Date: 2002-02-12
Classification: E05B,Y10T

Abstract:
A figure wheel (10) of a combination lock comprising a hollow wheel body (20) and a slip-resistant contact ring (30) securely attached around an outer surface of the wheel body (20), wherein the improvements comprise:the wheel body (20) has an annular portion (21) integrally formed therein, an engagement gearing (23) integrally formed at an inner side of the annular portion (21), a filling opening (24) defined in an outer side of the annular portion (21), raised identification marks (26) integrally formed on the outer surface of the wheel body (20), and an annular recess (27) defined in a remainder area not occupied by the raised identification marks (26) of the outer surface of the wheel body (20) and communicated with the filling opening (24) via a throat (28) defined in the wheel body (20); and the contact ring (30) is formed by injecting a plastic material from the filling opening (24) into the annular recess (27) via the throat (28) and filling the annular recess (27), the throat (28) and the filling opening (24) completely.