Mechanical component, movement, and timepiece
AssigneeSeiko Instruments Inc.
InventorsSachiko Tanabe, Takashi Niwa, Masahiro Nakajima
Life of this patent
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Abstract
A mechanical component includes a component main body having a through-hole through which a shaft member is passed, and a forcing-in portion made of metal material formed on the inner surface of the through-hole and fixed to the shaft member through the forcing-in of the shaft member. The component main body has a retaining recess and the forcing-in portion fills the inner space of the retaining recess so that the retaining recess constitutes an anchor structure regulating displacement of the forcing-in portion with respect to the component main body.
Claims18
A mechanical component, comprising:
- a component main body having a through-hole through which a shaft member is passed;
- and
- a forcing-in portion formed on the inner surface of the through-hole and fixed to the shaft member through the forcing-in of the shaft member,
- wherein a retaining recess is formed on the inner surface of the through-hole, a part of the forcing-in portion fills the inner space of the retaining recess and another part of the forcing-in portion protrudes inwardly from the inner surface of the through-hole, and the retaining recess constitutes an anchor structure regulating displacement of the forcing-in portion with respect to the component main body by retaining at least a part of the forcing-in portion;
- and
- wherein the forcing-in portion is formed of a metal material.
Dependencies are inferred from the claim text.