Dome-shaped push switch
AssigneeLotes Co., Ltd
InventorsTed Ju, Yin Fu Zhu, Shuang Bo Long, Yu Song Zhou
Life of this patent
Estimating the term…
Abstract
A dome-shaped push switch includes a sheet and a conducting layer disposed at a low surface of the sheet. The sheet has a pressing portion arching upward. The conducting layer is disposed at a lower surface of the sheet. The conductivity of the sheet is greater than that of the sheet. The pressing portion includes at least one through hole penetrating through the pressing portion. The through hole has a side wall, the side wall sequentially has a shear surface and a tear surface from bottom up, and a fillet is provided between the shear surface and a lower surface of the pressing portion.
Claims20
A dome-shaped push switch, comprising:
- a sheet having a pressing portion arching upward;
- and
- a conducting layer disposed at a lower surface of the sheet, a conductivity of the conducting layer being greater than that of the sheet,
- wherein the pressing portion comprises at least one through hole penetrating through the pressing portion, the at least one through hole has a side wall, the side wall sequentially has a shear surface and a tear surface from bottom up, and a fillet is provided between the shear surface and a lower surface of the pressing portion, and
- wherein a roughness of the tear surface is greater than a roughness of the shear surface.
A dome-shaped push switch, comprising:
- a sheet having a pressing portion arching upward;
- a conducting layer disposed at a lower surface of the sheet, a conductivity of the conducting layer being greater than that of the sheet;
- and
- a chamfer,
- wherein the pressing portion comprises at least one through hole penetrating through the pressing portion, the at least one through hole has a side wall, the side wall sequentially has a shear surface and a tear surface from bottom up, a fillet is provided between the shear surface and a lower surface of the pressing portion, and the chamfer is disposed at a part of the fillet.
A dome-shaped push switch, comprising:
- a sheet having a pressing portion arching upward;
- and
- a conducting layer disposed at a lower surface of the sheet, a conductivity of the conducting layer being greater than that of the sheet,
- wherein the pressing portion comprises at least one through hole penetrating through the pressing portion, the at least one through hole has a side wall, the side wall sequentially has a shear surface and a tear surface from bottom up, and a fillet is provided between the shear surface and a lower surface of the pressing portion, and
- wherein the sheet is formed by stretching a thick plate along a direction, a number of the at least one through hole is four, a connection portion is provided between every two adjacent through holes of the four through holes, and an angle between a longitudinal direction of one of the connection portions and the stretching direction of the thick plate is between 15° and 35°.
Dependencies are inferred from the claim text.