Title:
MOTOR DEVICE
Document Type and Number:
Japanese Patent JP2017189110
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To not only reduce size, weight and a cost of a motor device, but also to enhance stop position accuracy.SOLUTION: Since a recess 33e for passing a second contact plate, as a worm wheel 32 rotates, is provided at a part of an outer periphery 33a of a switching plate 33, a rotation angle β° of the worm wheel 32 can be reduced for distance L1 (e.g., 3.0 mm), in which the second contact plate advances in the recess 33e by inertia, and thereby variation is less likely to occur in the stop position of the worm wheel 32 than conventional one. Consequently, not only size, weight and a cost of a rear wiper motor can be reduced, but also stop position accuracy of the worm wheel 32 can be enhanced.SELECTED DRAWING: Figure 5
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Inventors:
YASUMOTO KENJI
TOKISAKI TEPPEI
OTA SHIGEKI
TOKISAKI TEPPEI
OTA SHIGEKI
Application Number:
JP2017132503A
Publication Date:
October 12, 2017
Filing Date:
July 06, 2017
Export Citation:
Assignee:
MITSUBA CORP
International Classes:
H02K7/116; B60S1/08; H02K11/21
Domestic Patent References:
| JP2002238218A | 2002-08-23 | |||
| JP2013099137A | 2013-05-20 | |||
| JPH05178168A | 1993-07-20 | |||
| JP2012222995A | 2012-11-12 | |||
| JP2010042729A | 2010-02-25 | |||
| JP2001103709A | 2001-04-13 |
Foreign References:
| US4455511A | 1984-06-19 |
Attorney, Agent or Firm:
Tsutsui International Patent Office