公开(公告)号：US20230238196A1

公开(公告)日：2023-07-27

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：US11424090B2

公开(公告)日：2022-08-23

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

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：US20190304717A1

公开(公告)日：2019-10-03

申请号：US16442531

申请日：2019-06-16

Applicant: DARFON ELECTRONICS CORP.

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

IPC: H01H13/14

Abstract: A key switch includes a base, a key cap, a supporting mechanism, a link bar and a buffer member. The key cap is disposed above the base. The supporting mechanism is connected to the key cap and the base to allow the key cap to move relative to the base upwardly and downwardly. The link bar includes a lower linking end. The buffer member and the base are two independent components. The buffer member is disposed on the base and made of material softer than material of the base. A restraining structure is formed on the buffer member. The lower linking end movably passes through the restraining structure. When the key cap moves relative to the base upwardly and downwardly, the lower linking end is driven to move within the restraining structure correspondingly, so as to reduce noise during movement of the lower linking end relative to the base.

公开(公告)号：US10373779B2

公开(公告)日：2019-08-06

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: H01H13/85 ,  H01H13/705 ,  H01H13/84 ,  H01H13/88

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：US09953776B2

公开(公告)日：2018-04-24

申请号：US15485234

申请日：2017-04-12

Applicant: DARFON ELECTRONICS CORP.

Inventor： Pen-Hui Liao ,  Chin-Hung Lin

IPC: H01H36/00 ,  H01H13/14 ,  H01H3/12 ,  H01H13/84

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.