TOOL INSERTION END

Japanese Patent JP2005169617

A

To obtain the insertion end of a tool capable of optimally transmitting high rotation moment and a shock impulse without a risk of breakage.

The insertion end at least partially extends along the axis line A of the tool 2 driven by rotation and an impact. The insertion end 1 has a locking groove 5 which extends along the axis line A within the maximum guide diameter D, and has the axis line direction end closed at the locking groove end 3 of the end surface 4 side, and a rotation transmission groove 6 of a groove width B having at least one tangential direction force contact surface 7. The insertion end 1 is provided with at least two rotation transmission grooves 6. A length L from the rotation transmission groove 6 to the locking groove end 3 is set to be at least three times of the guide diameter D, the contact length K of the rotation transmission groove 6 is set to be at least one and half times of the guide diameter D, and the width of the rotation transmission groove is set larger in groove width than one fifth of the guide diameter D.

KLEINE WERNER
BRITTEN WERNER

JP2004350994A

June 30, 2005

December 03, 2004

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HILTI AG

B23B51/02; B23B31/00; B23B31/02; B23B31/107; B23B45/16; B23B51/00; B23Q3/12; B23Q16/00; B25D17/00; B25D17/08; B28D1/00; B28D1/14; B23B; B28D; (IPC1-7): B25D17/08

JPH06182608A	1994-07-05
JPH06182607A	1994-07-05
JPS5261666A	1977-05-21

DE3716915A1

1988-12-08

Kosaku Sugimura
Kazuaki Takami
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita

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