US 12,242,677 B1
Full-area touch device
Chun-Chieh Chen, Taichung (TW); and Ling-Cheng Tseng, Taichung (TW)
Assigned to SUNREX TECHNOLOGY CORP., Taichung (TW)
Filed by SUNREX TECHNOLOGY CORP., Taichung (TW)
Filed on Apr. 3, 2024, as Appl. No. 18/625,841.
Claims priority of application No. 113100906 (TW), filed on Jan. 9, 2024.
Int. Cl. G06F 3/041 (2006.01); G06F 3/0354 (2013.01)
CPC G06F 3/03547 (2013.01) 5 Claims
OG exemplary drawing
 
1. A full-area touch device comprising:
a base unit having a trigger portion;
a touch control unit disposed over said base unit, and including
a touch plate,
a circuit board that is connected to a bottom side of said touch plate and that has a circuit board bottom surface opposite to said touch plate, and
a trigger switch that is disposed on said circuit board bottom surface, that is aligned with said trigger portion, and that is configured to be triggered by said trigger portion; and
a linkage unit disposed between said base unit and said touch control unit, symmetrical in a front-rear direction and a left-right direction relative to said trigger switch, and including
an outer frame that defines an outer frame space, and that has a top outer frame surface connected fixedly to said circuit board bottom surface, and a bottom outer frame surface opposite to said top outer frame surface,
an inner frame that is flexible, that is disposed in said outer frame space, that defines an inner frame space, and that has a top inner frame surface and a bottom inner frame surface opposite to said top inner frame surface, a thickness of said inner frame between said top inner frame surface and said bottom inner frame surface being smaller than a thickness of said outer frame between said top outer frame surface and said bottom outer frame surface,
a first linkage set that has a plurality of linkage members fixed between said bottom outer frame surface and said bottom inner frame surface,
a left plate that is flexible, that is fixed to said base unit, and that is disposed in said inner frame space,
a right plate that is flexible, that is fixed to said base unit opposite to said left plate, and that is disposed in said inner frame space, and
a second linkage set that has a left front linkage member, a left rear linkage member, a right front linkage member, and a right rear linkage member, said left front linkage member and said left rear linkage member being fixed between said left plate and said bottom inner frame surface, said right front linkage member and said right rear linkage member being fixed between said right plate and said bottom inner frame surface;
wherein a gap is formed between said top inner frame surface and said circuit board bottom surface;
wherein said outer frame space and said inner frame space communicate with each other;
wherein a portion of said outer frame space not occupied by said base unit, said inner frame, said left plate, and said right plate is defined as a floating chamber; and
wherein said touch control unit is movable relative to said base unit, via operation of said linkage unit, between an upper position where said trigger switch is not triggered by said trigger portion, and a lower position where said trigger switch is triggered by said trigger portion.