Pressing device
AssigneeSunrex Technology Corp.
InventorsShih-Pin Lin, Chun-Chieh Chen, Ling-Cheng Tseng, Yu-Shuo Yang
Life of this patent
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Abstract
A pressing device includes a base board, an upper board unit that is disposed over the base board, and an intermediate unit that is disposed between the base board and the upper board unit. The upper board unit includes a panel, a circuit board, and a tact switch. The intermediate unit includes a middle portion that corresponds in position to the tact switch, a surrounding frame member, and a plurality of interconnecting board members. When the upper board unit is pressed, at least one of the interconnecting board members is deformed, and the middle portion is driven to convert the tact switch from an initial state to a triggered state.
Claims5
A pressing device for a touchpad, comprising:
- a base board;
- an upper board unit disposed over said base board and including
- a panel,
- a circuit board that is disposed on a bottom portion of said panel, and
- a tact switch that is disposed on a bottom portion of said circuit board;
- and
- an intermediate unit disposed between said base board and said upper board unit, and including
- a middle portion that corresponds in position to said tact switch of said upper board unit,
- a surrounding frame member that is mounted fixedly to said bottom portion of said circuit board, and
- a plurality of interconnecting board members each of which is connected between said middle portion and said surrounding frame member, each of said interconnecting board members having a base end surface that faces said base board, and a supporting portion that protrudes from said base end surface and that is connected fixedly to said base board;
- wherein, when said upper board unit is pressed toward said base board, said supporting portion of at least one of said interconnecting board members is pushed toward said upper board unit by a reaction force to resiliently deform the at least one of said interconnecting board members, thereby driving said middle portion to convert said tact switch from a initial state to a triggered state;
- and
- wherein said intermediate unit is made of metal and is configured as a one-piece component, said surrounding frame member of said intermediate unit being substantially rectangular ring-shaped and including four corner portions, each of said interconnecting board members of said intermediate unit being elongated plate-shaped and interconnecting said middle portion of said intermediate unit and a respective one of said corner portions.
Dependencies are inferred from the claim text.