CHAIN SAW WITH CHAIN GUARD MEMBER

摘要

CHAIN SAW WITH CHAIN GUARD MEMBER : The present invention relates to a chain saw. The saw includes a housing, a guide bar projecting from the housing, a cutting chain mounted to run on the guide bar in a closed loop and a motive unit carried by the housing coupled to the cutting chain. The housing includes a portion forming a channel through which the cutting chain travels as it is propelled around the guide bar. The housing also includes a chain guard member which is comprised of a pin mounted on the housing portion. The pin includes a shank portion which projects into the channel and is disposed between opposite ends of the loop and beneath the lower run of the loop of the cutting chain. The pin projects transversely with respect to the plane of the loop through the probable trajectory followed by the cutting chain when the chain becomes disengaged from the guide bar during operation. The chain guard member serves to catch or intercept the cutting chain and retard its movement to prevent it from striking an operator of the saw.