Title:
ROTARY-OPERATION-TYPE ELECTRONIC COMPONENT
Document Type and Number:
WIPO Patent Application WO/2014/087783
Kind Code:
A1
Abstract:
Provided is a rotary-operation-type electronic component having a simple design. The present invention includes: a column-shaped operation shaft; a bearing having a pass-through shaft hole; an electrical signal control unit attached to one end of the bearing, for controlling an electrical signal by rotary operation of the operation shaft; and a cylindrical spring, in which the barrel is cut in the center axial direction, accommodated inside a spring accommodation gap formed between the outer peripheral surface of the operation shaft and the inner peripheral surface of the pass-through shaft hole; the cylindrical spring having a plurality of spring plate parts extending in the center axial direction of the operation shaft, arranged mutually connected in the circumferential direction on the outer peripheral surface of the operation shaft; and the number of spring plate parts and the maximum distortion of the spring plate parts being independently adjustable using a structure in which the plurality of spring plate parts have a central region part in the length direction that projects in a curve toward the outer side in the radial direction of the cylindrical spring, the spring plate parts being elastically sandwiched between the outer peripheral surface of the operation shaft and the inner peripheral surface of the pass-through shaft hole, and the length in the center axial direction of the spring plate parts being extendably maintained by the pressing force of the outer peripheral surface and the inner peripheral surface.
Inventors:
FUKUNAGA TARO (JP)
Application Number:
PCT/JP2013/079982
Publication Date:
June 12, 2014
Filing Date:
November 06, 2013
Export Citation:
Assignee:
TOKYO COSMOS ELECTRIC (JP)
International Classes:
H01C10/00; H01H19/20; H01H3/10
Foreign References:
| JPH11329806A | 1999-11-30 | |||
| JPH08181006A | 1996-07-12 | |||
| JPH0420201U | 1992-02-20 | |||
| JP2003115237A | 2003-04-18 | |||
| JPH11329806A | 1999-11-30 | |||
| JP2010218883A | 2010-09-30 | |||
| JP2010186792A | 2010-08-26 | |||
| JP2006147832A | 2006-06-08 | |||
| JPH08236314A | 1996-09-13 |
Other References:
See also references of EP 2930730A4
Attorney, Agent or Firm:
NAKAO, Naoki et al. (JP)
Naoki Nakao (JP)
Naoki Nakao (JP)
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