Keyswitch and keyboard thereof

Patent metadata

Field	Value
Publication number	US-11495421-B2
Application number	US-202016814985-A
Country	US
Kind code	B2
Filing date	Mar 10, 2020
Priority date	Mar 15, 2019
Publication date	Nov 8, 2022
Grant date	Nov 8, 2022

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.

First claim

What is claimed is:

1. A keyswitch comprising:
a bottom board;
a cap structure comprising a connection member, a cap body, and a spring fixing base, the connection member being detachably disposed under the cap body;
a lifting mechanism detachably connected to the connection member and the bottom board to make the cap structure movable upward and downward relative to the bottom board;
an elastic member connected to the cap structure to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism, the elastic member being a spring, a hole being formed on the connection member corresponding to the spring, at least one fixing hook being formed on the spring fixing base and connected to the cap body corresponding to the hole, one end of the elastic member being engaged with the at least one fixing hook, at least one limiting block being formed on the spring fixing base, the at least one limiting block laterally abutting against the spring, the at least one limiting block being arranged in a ring shape cooperatively with the at least one fixing hook for positioning the spring to the spring fixing base, and another end of the elastic member abutting against the bottom board for driving the cap structure away from the bottom board; and
a connection ring detachably engaged with the at least one fixing hook to clamp the one end of the spring cooperatively with the spring fixing base of the cap structure.

2. The keyswitch of claim 1 , wherein the spring fixing base is attached under the cap body by glue.

3. The keyswitch of claim 1 , wherein the connection member has a first magnetic member, the cap body has a second magnetic member corresponding to the first magnetic member, and the first magnetic member magnetically attracts the second magnetic member to make the connection member detachably connected to the cap body.

4. The keyswitch of claim 3 , wherein a recessed structure is formed on a side of the cap body corresponding to the second magnetic member.

5. The keyswitch of claim 1 , wherein at least one first positioning structure is formed on at least one edge of the connection member, a second positioning structure is formed on the cap body corresponding to the at least one first positioning structure, and the at least one first positioning structure is engaged with the second positioning structure to make the connection member detachably connected to the cap body.

6. A keyboard comprising:
a bottom board; and
a plurality of keyswitches disposed on the bottom board, at least one of the plurality of keyswitches comprising:
a cap structure comprising a connection member, a cap body, and a spring fixing base, the connection member being detachably disposed under the cap body, at least one limiting block being formed on the spring fixing base;
a lifting mechanism detachably connected to the connection member and the bottom board to make the cap structure movable upward and downward relative to the bottom board;
an elastic member connected to the cap structure to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism, the elastic member being a spring, a hole being formed on the connection member corresponding to the spring, at least one fixing hook being formed on the spring fixing base and connected to the cap body corresponding to the hole, one end of the elastic member being engaged with the at least one fixing hook, at least one limiting block being formed on the spring fixing base, the at least one limiting block laterally abutting against the spring, the at least one limiting block being arranged in a ring shape cooperatively with the at least one fixing hook for positioning the spring to the spring fixing base, and another end of the elastic member abutting against the bottom board for driving the cap structure away from the bottom board; and
a connection ring detachably engaged with the at least one fixing hook to clamp the one end of the spring cooperatively with the spring fixing base of the cap structure.

7. A keyswitch comprising:
a bottom board;
a cap structure comprising a connection member, a cap body, and a spring fixing base, the connection member being detachably disposed under the cap body, the connection member having a first magnetic member, the cap body having a second magnetic member corresponding to the first magnetic member, and the first magnetic member magnetically attracting the second magnetic member to make the connection member detachably connected to the cap body;
a lifting mechanism detachably connected to the connection member and the bottom board to make the cap structure movable upward and downward relative to the bottom board;
an elastic member connected to the cap structure to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism, the elastic member being a spring, a hole being formed on the connection member corresponding to the spring, at least one fixing hook being formed on the spring fixing base and connected to the cap body corresponding to the hole, one end of the elastic member being engaged with the at least one fixing hook, and another end of the elastic member abutting against the bottom board for driving the cap structure away from the bottom board; and
a connection ring detachably engaged with the at least one fixing hook to clamp the one end of the spring cooperatively with the spring fixing base.

8. A keyswitch comprising:
a bottom board;
a cap structure comprising a connection member, a cap body, and a spring fixing base, the connection member being detachably disposed under the cap body, at least one first positioning structure being formed on at least one edge of the connection member, a second positioning structure being formed on the cap body corresponding to the at least one first positioning structure, and the at least one first positioning structure being engaged with the second positioning structure to make the connection member detachably connected to the cap body;
a lifting mechanism detachably connected to the connection member and the bottom board to make the cap structure movable upward and downward relative to the bottom board;
an elastic member connected to the cap structure to be detached from the lifting mechanism together with the cap structure when the cap structure is separate from the lifting mechanism, the elastic member being a spring, a hole being formed on the connection member corresponding to the spring, at least one fixing hook being formed on the spring fixing base and connected to the cap body corresponding to the hole, one end of the elastic member being engaged with the at least one fixing hook, and another end of the elastic member abutting against the bottom board for driving the cap structure away from the bottom board; and
a connection ring detachably engaged with the at least one fixing hook to clamp the one end of the spring cooperatively with the spring fixing base.

Assignees

• Darfon Electronics Corp

Inventors

• Huang Jui-Yi
• Yang sheng-yun
• Lin Chin-Hung

Classifications

• H01H2235/002

  Linear coil spring combined with dome spring · CPC title

• H01H13/705 Primary

  characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys · CPC title

• H01H13/85

  characterised by tactile feedback features · CPC title

• H01H3/125

  using a scissor mechanism as stabiliser · CPC title

• H01H2221/028

  Telescopic guiding · CPC title