公开(公告)号：US12002635B2

公开(公告)日：2024-06-04

申请号：US17979790

申请日：2022-11-03

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chin-Hung Lin ,  Li-Yen Ning ,  Hsiao-Han Chu

IPC: H01H13/14 ,  H01H13/10

CPC classification number: H01H13/14 ,  H01H13/10

Abstract: A keyswitch structure includes a base plate, a keycap, and a support mechanism. The support mechanism supports the keycap above the base plate. An outer support of the support mechanism includes a reinforcing body and a connecting structure fixed on the reinforcing body. The outer support is connected to the base plate and the keycap through the connecting structure. In an embodiment, the reinforcing body has two openings. Two inner supports of the support mechanism are pivotally connected to the connecting structure and are located in the two openings, respectively. In another embodiment, the reinforcing body as a whole extends along a plane. The reinforcing body has a bent fringe, which is inserted into the connecting structure and is not perpendicular to the plane.

公开(公告)号：US20210304979A1

公开(公告)日：2021-09-30

申请号：US17216707

申请日：2021-03-30

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Chun Hou ,  Chin-Hung Lin ,  Liang-Ta Yeh ,  Ling-Hsi Chao

IPC: H01H13/14 ,  H01H13/10

Abstract: A keyswitch support connection structure incudes a bottom plate portion, a cantilever plate, and a joining portion. The cantilever plate extends upward from a joining hole of the bottom plate portion and has a holding structure. The joining portion and the joining hole are firmly engaged with each other. The joining portion encapsulates the holding structure. The joining portion and the bottom plate portion jointly form or the joining portion alone forms a support connection portion. A keyswitch structure includes a base, a keycap above the base, and first and second keyswitch supports connected to and between the keycap and the base. The base includes the above keyswitch support connection structure. The first keyswitch support is rotatably connected to the support connection portion.

公开(公告)号：US20200294737A1

公开(公告)日：2020-09-17

申请号：US16814985

申请日：2020-03-10

Applicant: DARFON ELECTRONICS CORP.

Inventor： Jui-Yi Huang ,  Sheng-Yun Yang ,  Chin-Hung Lin

IPC: H01H13/705 ,  H01H13/85

Abstract: A keyswitch includes a bottom board, a cap structure, a lifting mechanism, and an elastic member. The lifting mechanism is detachably connected to the cap structure and the bottom board to make the cap structure movable upward and downward relative to the bottom board. The elastic member is connected to the cap structure so as to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism.

公开(公告)号：US20180350537A1

公开(公告)日：2018-12-06

申请号：US15993628

申请日：2018-05-31

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin ,  Yen-Hsiao Lin ,  Hsin-Hung Liu ,  Chia-Fu Cheng

IPC: H01H13/84 ,  H01H13/88

CPC classification number: H01H13/84 ,  H01H13/705 ,  H01H13/85 ,  H01H13/88 ,  H01H2221/062

Abstract: A key switch includes a base, a key cap, a link bar and a buffer member. A first hook of a first extending arm of the base and a second hook of a second extending arm of the base extend toward opposite directions respectively. An upper linking end of the link bar is movably connected to the key cap. The buffer member is made of material softer than material of the base. When the first hook and the second hook engage with a first engaging portion and a second engaging portion of the buffer member respectively, a recess structure of the buffer member is adjacent to the base to form a restraining structure. A lower linking end of the link bar is movably disposed through the restraining structure. Therefore, the key switch of the present invention has noise reduction capability.

公开(公告)号：US12131874B2

公开(公告)日：2024-10-29

申请号：US17216707

申请日：2021-03-30

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Chun Hou ,  Chin-Hung Lin ,  Liang-Ta Yeh ,  Ling-Hsi Chao

IPC: H01H13/14 ,  H01H3/12 ,  H01H13/10 ,  H01H13/705

CPC classification number: H01H13/14 ,  H01H3/12 ,  H01H13/10 ,  H01H13/705

Abstract: A keyswitch support connection structure incudes a bottom plate portion, a cantilever plate, and a joining portion. The cantilever plate extends upward from a joining hole of the bottom plate portion and has a holding structure. The joining portion and the joining hole are firmly engaged with each other. The joining portion encapsulates the holding structure. The joining portion and the bottom plate portion jointly form or the joining portion alone forms a support connection portion. A keyswitch structure includes a base, a keycap above the base, and first and second keyswitch supports connected to and between the keycap and the base. The base includes the above keyswitch support connection structure. The first keyswitch support is rotatably connected to the support connection portion.

公开(公告)号：US11600455B2

公开(公告)日：2023-03-07

申请号：US17577767

申请日：2022-01-18

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Chun Hou ,  Chin-Hung Lin

IPC: H01H3/12 ,  H01H13/704 ,  H01H9/02

Abstract: A keyswitch includes a base plate, a keycap, a balance bar, at least one buffer layer, and a membrane switch layer disposed on a base plate. A linking portion of the base plate protruding upward penetrates through the membrane switch layer such that a contact portion of the membrane switch layer is located proximate to the linking portion. A connecting section of the balance bar passes through a through hole of the linking portion. The at least one buffer layer is formed on a lower surface of the contact portion, and extends along a first lateral path and a second lateral path. The contact portion supports the connecting section to abut against a top wall of the linking portion. When the keycap moves upward and downwards, the connecting section pivotally slides on the contact portion, between the first lateral path and the second lateral path.

公开(公告)号：US20170330707A1

公开(公告)日：2017-11-16

申请号：US15485234

申请日：2017-04-12

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin

IPC: H01H13/14 ,  H01H3/12

CPC classification number: H01H13/14 ,  H01H3/122 ,  H01H3/125 ,  H01H13/84 ,  H01H36/0073 ,  H01H2221/04

Abstract: A keyswitch includes a base plate, a cap having a longitudinal axis, a returning device, a support mechanism, and a lifting mechanism including first and second support plates. The first support plate has first and second edges parallel to the longitudinal axis for respectively abutting against the base plate and the cap. The second support plate has third and fourth edges parallel to the longitudinal axis for respectively abutting against the base plate and the cap. The base plate is disposed through openings of the first and second support plates to make the first and second support plates movably connected to the base plate. The returning device drives the cap to a non-pressed position with rotation of the first and second support plates. The support mechanism has first and second support members pivoted to each other to be movably connected to the cap and the base plate.

公开(公告)号：US20220189714A1

公开(公告)日：2022-06-16

申请号：US17684441

申请日：2022-03-02

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Chun Hou ,  Chin-Hung Lin

IPC: H01H13/14 ,  H01H13/10 ,  H01H3/12 ,  H01H13/04

Abstract: A keyswitch support connection structure is a combined structure which includes a structural plate and a joining portion. The joining portion and the structural plate are firmly engaged with each other through a joining structure of the structural plate. The joining structure includes at least one of a protruding portion, a through hole, a side hole, a joining hole, a cantilever plate, and a protruding bridge portion. The joining portion includes at least one hook arm, configured to forma support connection portion. A keyswitch structure includes a base, a keycap above the base, two keyswitch supports connected to and between the base and the keycap, and the keyswitch support connection structure structurally integrated into the base or the keycap. The keycap is vertically movable relative to the base through the two keyswitch supports. One of the two keyswitch supports is connected to the support connection portion.

公开(公告)号：US20210304981A1

公开(公告)日：2021-09-30

申请号：US17216717

申请日：2021-03-30

Applicant: DARFON ELECTRONICS CORP.

Inventor： Po-Chun Hou ,  Chin-Hung Lin ,  Liang-Ta Yeh ,  Ling-Hsi Chao

IPC: H01H13/705 ,  H01H13/10 ,  H01H3/12

Abstract: A keyswitch support connection structure incudes a bottom plate portion and a joining portion firmly joined with a joining hole of a bottom plate portion to form a support connection portion. In an embodiment, a cantilever plate extends upward from the joining hole. The joining portion encapsulates a holding structure of the cantilever plate. In another embodiment, a protruding bridge portion connected across two sides of the joining hole. The joining portion encapsulates the protruding bridge portion. In another embodiment, the joining portion has a wing portion protruding from a bottom surface of the bottom plate portion and extending parallel to the bottom surface. A keyswitch structure includes a base with the keyswitch support connection structure, a keycap, and two keyswitch supports. The two keyswitch supports are connected to and between the keycap and the base; therein, one of the keyswitch supports is rotatably connected to the support connection portion.

公开(公告)号：US10804049B1

公开(公告)日：2020-10-13

申请号：US16789440

申请日：2020-02-13

Applicant: DARFON ELECTRONICS CORP.

Inventor： Ming-Yuan Hsieh ,  Liang-Ta Yeh ,  Po-Chun Hou ,  Chin-Hung Lin

IPC: H01H13/14 ,  H01H13/52

Abstract: A keyswitch structure includes a base plate, a keycap, a scissors support connecting the keycap and the base plate, a linking support rotatably disposed on the base plate, a movable part movably disposed relative to the base plate, and a magnetic part on the movable part. The linking support includes a magnetic portion and a driving portion. The magnetic part and the magnetic portion produce a magnetic attraction force therebetween. When the movable part is located at a first position, the magnetic part is located under the magnetic portion, and the magnetic attraction force drives the keycap through the linking support to move away relative to the base plate. When the movable part moves from the first position to a second position, the magnetic part moves away relative to the magnetic portion, so that the magnetic attraction force decreases so as to make the keycap move toward the base plate.