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Patent Searching and Data


Title:
OPERATION ELEMENT STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2019/026232
Kind Code:
A1
Abstract:
Provided is an operation element structure that makes it possible to reduce wasteful open area in a base plate and to more easily arrange a pair of wheels closer together. According to the present invention, a single through hole H is formed in a base plate 10 to correspond to a pair of operation element units UT1, UT2. Respective detection parts 11, 21 of the units UT1, UT2 are fixed to the base plate 10, and shaft parts 12, 22 extend from the detection parts 11, 21 toward the through hole H side so as to face each other in a cantilevered state. Wheels 13, 23 are installed and fixed from tip end sides of the shaft parts 12, 22. The shaft parts 12, 22 rotate integrally with the wheels 13, 23, and the rotational displacement thereof is detected by the detection parts 11. A clearance hole H3 portion of the through hole H is used when the wheels 13, 23 are attached. Regions that are used as clearance holes when the wheels 13, 23 are installed on the shaft parts 12, 22 at least partially overlap.

Inventors:
SHIBA Kenichi (Nakazawa-cho Naka-ku, Hamamatsu-sh, Shizuoka 50, 〒4308650, JP)
Application Number:
JP2017/028234
Publication Date:
February 07, 2019
Filing Date:
August 03, 2017
Export Citation:
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Assignee:
YAMAHA CORPORATION (10-1, Nakazawa-cho Naka-ku, Hamamatsu-sh, Shizuoka 50, 〒4308650, JP)
International Classes:
G06F3/02; G10H1/34; H01H21/04
Foreign References:
JPH0277723U1990-06-14
JPH04116896U1992-10-20
JP2002023935A2002-01-25
JPH0590589U1993-12-10
Attorney, Agent or Firm:
BECCHAKU Shigehisa et al. (Lusis Bldg. 2nd Floor, 16-1 Higashi Shinbashi 2-chome, Minato-k, Tokyo 21, 〒1050021, JP)
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