Title:
BIT CONTINUOUSLY PROVIDED ON REVOLVING TOOL SUCH AS ELECTRIC REVOLVER
Document Type and Number:
Japanese Patent JP3502834
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a bit to be attached on a revolving tool such as an electric revolver by furnishing sufficient strength and favorable overload absorbing force.
SOLUTION: A bit body 6 is continuously provided on the revolving tool such as the electric revolver, bit parts 2, 3 are formed on both left and right end parts, engagement grooves 4, 5 to connect to a chuck part of the revolving tool are respectively formed at positions at an equal distance from respective end parts of these left and right bit parts 2, 3, a rib part 7 a cross-section of which is shaped so that a rib body 7a is projectively provided in the radial direction from a shaft center is formed between the both engagement grooves 4, 5 on this bit 6, this rib part 7 is provided to have a distance of specified length in the lengthy direction of the bit body 6, and a distance L1 from the left engagement groove 4 to a left end of the rib part 7 and a distance L2 from the right engagement groove 5 to a right end of the rib part 7 are set in the different distances.
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Inventors:
Koichi Kaneko
Application Number:
JP2000403277A
Publication Date:
March 02, 2004
Filing Date:
December 28, 2000
Export Citation:
Assignee:
Kaneko Manufacturing Co., Ltd.
International Classes:
B25B15/00; (IPC1-7): B25B15/00
Domestic Patent References:
| JP2503405A | ||||
| JP9508323A |
Other References:
【文献】実用新案登録2532728(JP,Y2)
Attorney, Agent or Firm:
Tsuyoshi Yoshii (1 person outside)