Title:
INSTRUMENT AND METHOD FOR MEASURING TORQUE OF TIME PIECE
Document Type and Number:
Japanese Patent JP3589189
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To allow torque measurement of the whole gear train, and to surely detect a mechanical trouble of irregularity of a needle operation.
SOLUTION: A torque taking-out member 50 is attached to a barrel wheel 42 in this measuring instrument. A movement is rotated thereby around the rotation center of the barrel wheel 42 as the center by a motor to measure the torque of the whole gear train from the torque taking-out member 50 via a torque measuring terminal 60. The torque under the measurement is calculated one by one by a personal computer to display a fluctuation condition time- serially as a graph, and intermittent abnormality of the torque and continuous periodical fluctuation thereof and thereby judged easily based on the graph, and defective tooth shape in a wheel and pinion and eccentricity of a toothed wheel diameter are detected thereby.
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| JPS5342086 | CHASSIS DINAMOMETER |
Inventors:
Toyoji Hanaoka
Application Number:
JP2001087519A
Publication Date:
November 17, 2004
Filing Date:
March 26, 2001
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G01L3/00; G01L5/00; G04D7/04; (IPC1-7): G01L5/00; G01L3/00; G04D7/04
Domestic Patent References:
| JP46038392B1 | ||||
| JP49086066A | ||||
| JP10267768A |
Attorney, Agent or Firm:
Kinoshita Minoru
Kanji Nakayama
Tsuyoshi Ishizaki
Kanji Nakayama
Tsuyoshi Ishizaki
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