The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2008
Filed:
Dec. 28, 2006
Tomio Sato, Tokyo, JP;
Tomio Sato, Tokyo, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A first bearing member is provided on a key top. A second bearing member is provided on the key top. A first guide member is provided on a board. A second guide member is provided on the board. A first link member is disposed between the board and the key top, and has a first end portion rotatably supported by the first bearing member and a second end portion engaged with the first guide member. A second link member is disposed between the board and the key top, and has a third end portion rotatably supported by the second bearing member and a fourth end portion engaged with the second guide member. A third link member is disposed between the board and the key top. The first link member, the second link member, and the third link member are not in contact with each other. The second end portion is slidable relative to the first guide member in a first horizontal direction so that the first end portion is movable in a vertical direction. The fourth end portion is slidable relative to the second guide member in a second horizontal direction opposite to the first horizontal direction so that the third end portion is movable in the vertical direction. The first link member and the second link member are symmetrically arranged.