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Patent Searching and Data


Title:
TORQUE WRENCH WITH MARKER
Document Type and Number:
Japanese Patent JP2001113472
Kind Code:
A
Abstract:

To provide a torque wrench with a marker applicable to a torque wrench using a fastening shaft inside which the marker cannot move.

A ratchet cylinder 5 engages with a head part 3 of a wrench body 2 by a ratchet. A hexagonal shaft 6 for engaging with a fastening object bolt B is fixed to a tip part of the ratchet cylinder 5. A marker rod 7 is slidingly inserted into the ratchet cylinder 5, a marker support cylinder 29 is slidingly inserted outside, and is connected to the marker rod 7 by a connecting pin 9 penetrating through a slit 5b. A marker 8 is supported by the marker support cylinder 29. When reaching prescribed fastening torque, the marker rod 7 moves in the axial direction by operation of a toggle link 11 in a handle part 4 to perform imprinting by the marker 8. The marker support cylinder 29 has a positioning projection piece 32 for engaging with an ear piece E1 in a fastening position of the bolt B. At fastening operation time of the bolt B, the marker support cylinder 29 is relatively rotated to the ratchet cylinder 5 to regulate an imprinting position on the ear piece E1 by the marker 9 to a specific position.


Inventors:
KISHI SHUNEI
TANAKA NORIYUKI
IIKUNI MOTOHISA
IIMURO TAKASHI
AIKAWA SHOZO
Application Number:
JP29611699A
Publication Date:
April 24, 2001
Filing Date:
October 19, 1999
Export Citation:
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Assignee:
HIGASHI NIPPON RYOKAKU TETSUDO
SANWA TEKKI CORP
TOHNICHI MFG CO LTD
International Classes:
B25B23/15; (IPC1-7): B25B23/15
Attorney, Agent or Firm:
Tadashi Otsuka