Torque wrench

A torque wrench is configured such that power supplied from an air motor is transmitted to a ratchet unit via a reduction gear unit in order to rotate a spindle connected to the ratchet unit. The torque wrench includes a ratchet housing accommodating the ratchet unit, a body coupled with the ratchet...

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Bibliographic Details
Main Author IZUMISAWA NOBUYUKI
Format Patent
LanguageEnglish
Published 21.12.2006
Subjects
HAND TOOLS
MANIPULATORS
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
PERFORMING OPERATIONS
PHYSICS
PORTABLE POWER-DRIVEN TOOLS
TESTING
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING
TRANSPORTING
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Summary:A torque wrench is configured such that power supplied from an air motor is transmitted to a ratchet unit via a reduction gear unit in order to rotate a spindle connected to the ratchet unit. The torque wrench includes a ratchet housing accommodating the ratchet unit, a body coupled with the ratchet housing and accommodating the air motor, a strain gage bonded to the ratchet housing, a battery box accommodated within the body, and a circuit board fixed to a housing cover covering the ratchet housing and having a torque adjustment circuit provided thereon. The circuit board is connected to the battery box via a conductive wire running though a wiring groove formed on the body. Leads of the strain gage are connected to the circuit board within the housing cover.
Bibliography:Application Number: US20060447849