Title:
IDLER PULLEY SUPPORTING DEVICE
Document Type and Number:
Japanese Patent JP2015017666
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an idler pulley supporting device capable of smoothly discharging intruded foreign matter to the outside, when the foreign matter such as water enters a dust cover.SOLUTION: An idler pulley 30 is rotatably supported on an outer periphery of a sleeve 10 fixed to an engine block 1 through a rolling bearing 20. Both side surfaces of the rolling bearing 20 are covered by a pair of annular dust covers 40a and 40b whose inner diametrical portions are supported by the sleeve 10. Tapered surfaces 44 are provided on outer peripheral portions of inside surfaces of the pair of the dust covers 40a and 40b. Entered foreign matter moving outward in a diametrical direction by the centrifugal force due to rotations of the idler pulley 30 is guided by the tapered surfaces 44, and discharged to the outside from minute gaps 43 formed between the outer peripheral portions of the dust covers 40a and 40b and a rim 31 inner diametrical surface of the idler pulley 30.
Inventors:
WATANABE KAZUHIRO
Application Number:
JP2013145270A
Publication Date:
January 29, 2015
Filing Date:
July 11, 2013
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C33/78; F16C13/02; F16H55/36; F16J15/447
Domestic Patent References:
| JP2010270882A | 2010-12-02 | |||
| JP2012172827A | 2012-09-10 | |||
| JP2012163124A | 2012-08-30 | |||
| JP2012086579A | 2012-05-10 | |||
| JP2003004123A | 2003-01-08 | |||
| JPS61184153U | 1986-11-17 | |||
| JP2013087855A | 2013-05-13 | |||
| JP2013002499A | 2013-01-07 |
Attorney, Agent or Firm:
Naoya Kamata
Bunji Kamata
Yaichiro Nakatani
Spring water 隆
Bunji Kamata
Yaichiro Nakatani
Spring water 隆
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