| 摘要 |
PURPOSE:To detect torque at the time of the operation of a clutch with high accuracy, by combining a torque detection mechanism with a clutch mechanism part. CONSTITUTION:When the opposite load applied to an internal gear 12 through a follower shaft 20 increases gradually, said opposite load is acted on a torque detection disc 50 through a steel sphere 32 constituting a clutch mechanism to revolve the same around a support shaft 48 and applies screw stress to a torsion bar 58. This screw is detected as a torque value through a strain gauge 60. When the opposite load transmitted to the internal gear 12 increases, a sleeve 36 is pushed down to an axial direction against the pressing force of a coil spring 40 with respect to the steel sphere constituting the clutch mechanism to allow the internal gear 12 to race and, by measuring the torque max. value at this time, it can be confirmed whether an electromotive tool completed work on the basis of a proper torque set value.
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