Title:
STRIKING TOOL
Document Type and Number:
Japanese Patent JP2016013612
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To keep light weight by making an inner housing from resin, and to properly prevent misalignment or the lowering of durability by suppressing the deformation of the inner housing due to the heating of a bearing.SOLUTION: A hammer drill 1 is provided with an inner housing 13 which holds an output shaft 4 of a motor 3 and a tool holder 43 of a striking mechanism 6 respectively through a metal bearing 24 and a ball bearing 17 between the motor 3 and the striking mechanism 6, in a housing storing the motor 3 and the striking mechanism 6 disposed in front of the motor 3 and operated by the driving of the motor 3. In the inner housing 13, a holding part (a front holding portion 16) of the metal bearing 24 of the tool holder 43 is formed by metal, and other parts (a rear holding portion 14) are formed by resin. The inner housing 13 is made by couling the holding portion 16 and the rear holding portion 14.
Inventors:
TADA YOSHIAKI
TAKEUCHI HAJIME
FURUSAWA MASANORI
TAKEUCHI HAJIME
FURUSAWA MASANORI
Application Number:
JP2015037135A
Publication Date:
January 28, 2016
Filing Date:
February 26, 2015
Export Citation:
Assignee:
MAKITA CORP
International Classes:
B25D17/00; B25D11/04; B25D17/20
Domestic Patent References:
| JP2013000863A | 2013-01-07 | |||
| JP2011189413A | 2011-09-29 | |||
| JP2011131372A | 2011-07-07 | |||
| JPS6171308U | 1986-05-15 | |||
| JP2010120120A | 2010-06-03 | |||
| JPH08150577A | 1996-06-11 | |||
| JP2014018865A | 2014-02-03 |
Foreign References:
| WO2010140268A1 | 2010-12-09 |
Attorney, Agent or Firm:
Yoshiki Ishida
Kyoichi Ueda
Kyoichi Ueda
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