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.

Date of Patent:
Jan. 25, 2022

Filed:

Jan. 29, 2021
Applicant:

Fujikin Incorporated, Osaka, JP;

Inventors:

Takashi Hirose, Osaka, JP;

Masahiko Nakazawa, Osaka, JP;

Nobuo Nakamura, Osaka, JP;

Tomoko Yuhara, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/00 (2006.01); H02N 2/04 (2006.01); H01L 41/053 (2006.01); F16H 21/44 (2006.01); F16K 31/04 (2006.01);
U.S. Cl.
CPC ...
F16K 31/006 (2013.01); F16H 21/44 (2013.01); F16K 31/047 (2013.01); H01L 41/0536 (2013.01); H02N 2/04 (2013.01); F16K 31/004 (2013.01); F16K 31/007 (2013.01); F16K 2200/3052 (2021.08);
Abstract

A first lever portion includes a first point-of-effort portion, a first fulcrum portion, and a first point-of-load portion. A second lever portion has a second point-of-effort portion, a second fulcrum portion, and a second point-of-load portion. A first point-of-effort portion is located between a first fulcrum portion and a first point-of-load portion in a direction orthogonal to an axis of a stem. A second fulcrum portion is located between a second point-of-effort portion and a second point-of-load portion in the direction orthogonal to the axis. A distance between the second fulcrum portion and the second point-of-load portion is configured longer than a distance between the second fulcrum portion and the second point-of-effort portion. The second point-of-load portion of the second lever portion is displaced toward the stem and moves the stem toward the piezoelectric element by means of displacement of the intermediate member to the second lever portion side.


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