Title:
DENTAL TORQUE WRENCH
Document Type and Number:
WIPO Patent Application WO/2019/216335
Kind Code:
A1
Abstract:
This dental torque wrench is provided with: a body that has a head part to which a tool is attached and a shank part extending from the head part; an elastic spindle that is inserted in the shank part so as to be supported thereby; a pin that is fixed at an head-part-side end of the spindle so as to extend in the axial direction of the spindle; a claw part that is provided to the leading end of the pin and exposed out of the head part so as to transmit a unidirectional torque to a tool; and a hole which is provided inside the body along the axial direction of the spindle and in which the pin is fitted. In this dental torque wrench, the pin is provided with a rotation-stopping protrusion that protrudes in a radial direction orthogonal to the axial direction of the pin, and the inner circumferential surface of the hole at a connection part of the body is provided with a rotation-stopping groove in which the rotation-stopping protrusion can be fitted. The rotation-stopping groove is formed so as to be fitted with the rotation-stopping protrusion at a position where the claw part transmits torque to the tool in a predetermined direction and at a position where the claw part transmits torque to the tool in a direction opposite to the predetermined direction.
Inventors:
HONMA TATSURO (JP)
SUGINO MISATO (JP)
SUGINO MISATO (JP)
Application Number:
PCT/JP2019/018349
Publication Date:
November 14, 2019
Filing Date:
May 08, 2019
Export Citation:
Assignee:
G C DENTAL IND CORP (JP)
International Classes:
B25B13/46; A61C3/00; A61C8/00; B25B13/48
Foreign References:
| JPH08182691A | 1996-07-16 | |||
| US20100233653A1 | 2010-09-16 | |||
| JPS4996398A | 1974-09-12 |
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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