Sliding component and timepiece
AssigneeSeiko Instruments Inc.
InventorsMiei Sato, Natsuki Miyoshi, Matsuo Kishi, Naoki Amano, Takashi Niwa
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Abstract
The present invention aims to provide a sliding component of high wear resistance having a lubricating oil retaining structure and a structure helping to supply a lubricating oil regardless of the contact angle between itself and the mating component. There is provided a precision machinery component having at least three layers stacked together, characterized in that a portion substantially parallel to the stacking direction has a sliding portion coming into contact with another component, and that at least a part of the sliding portion has a recess.
Claims4
A sliding component in which at least three layers are stacked together and which has a sliding portion sliding on another component on an outer peripheral surface substantially parallel to the direction in which the layers are stacked,
- wherein there is formed a recess in a sliding portion of at least one layer between an uppermost layer and a lowermost layer of the at least three layers stacked together.
-12. (canceled)
A sliding component manufacturing method comprising the steps of:
- forming a photosensitive material layer on an upper surface of a conductive substrate;
- exposing the photosensitive material via a mask pattern arranged above the photosensitive material;
- developing the photosensitive material to form a cavity consisting of the photosensitive material and an exposed surface of the conductive substrate in a part of the conductive substrate;
- depositing at least two or more kinds of material layers on the exposed surface of the conductive substrate in the cavity by electroforming;
- extracting the deposited material layers from the cavity;
- and
- selectively removing a side surfaces of the material layers.
Dependencies are inferred from the claim text.