Motor chain saw with dynamic safety braking device

B - Operations – Transporting – 27 – B

Patent

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188/6, 143/7

B27B 17/00 (2006.01) B27B 17/08 (2006.01) F16D 59/00 (2006.01)

Patent

CA 1123318

ABSTRACT A portable motor chain saw with a safety braking device to protect against kick-back, recoil or centrifugal movements of the saw. The saw in- cludes a handle supported against the motor housing by damping elements, and also includes a locking device which on the one hand is connected with the handle, and on the other hand engages against a hand guard in such a way that it is released under the influence of relative movement, of the motor housing with respect to the handle, caused by a kick-back or centrifugal movement, consequently releasing the hand guard. The locking device has an abutment surface extending transverse to the direction of centrifugal movement, and this abutment surface cooperates with a projection directed against it.

353212

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