Title:
SHAFT-SUPPORT STRUCTURE FOR ROTATIONAL COMPONENT OF KEYBOARD INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2014/021375
Kind Code:
A1
Abstract:
The purpose of the present invention is to increase shaft support precision, and to facilitate assembly. Support pieces (114A, 114B) of a shaft support member (A101), said support pieces having a first mechanism part (M101) configured therein, are formed from elastic resin, and provided so as to face each other and extend in a two-pronged-fork shape. A rotational shaft (133) is securely provided to a butt (241) having a second mechanism part (M102) configured therein. Shaft-support holes (132) are formed in recessed guide parts (131) formed in each of the support pieces (114). When assembling the butt (241), the rotational shaft (133) in a state of opening the space between the support pieces (114A, 114B) by way of elastic deformation is guided into the guide parts (131), and when the position of the shaft-support holes (132) corresponds with the position of the rotational shaft (133), the rotational shaft (133) is inserted into the shaft-support holes (132), thereby closing the space between the support pieces (114A, 114B) and enabling the rotational shaft (133) to rotate freely with respect to the shaft-support holes (132).
Inventors:
KADOBAYASHI EMI (JP)
Application Number:
PCT/JP2013/070731
Publication Date:
February 06, 2014
Filing Date:
July 31, 2013
Export Citation:
Assignee:
YAMAHA CORP (JP)
International Classes:
G10C9/00; G10C1/02; G10C1/04; G10C3/16; G10C3/18
Foreign References:
| JP2000042222A | 2000-02-15 | |||
| JP2009277350A | 2009-11-26 | |||
| JPH0364279U | 1991-06-24 | |||
| JPS56108289U | 1981-08-22 | |||
| JP2002147105A | 2002-05-22 | |||
| JPH02140761U | 1990-11-26 |
Attorney, Agent or Firm:
CHUBU PATENT OFFICE (JP)
Central patent business corporation international patent firm (JP)
Central patent business corporation international patent firm (JP)
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