B - Operations – Transporting – 27 – B
Patent
B - Operations, Transporting
27
B
143/44
B27B 19/09 (2006.01)
Patent
CA 1076930
ABSTRACT The invention is directed to a power operated jig-saw which includes a housing and an elongated saw-blade holder for holding a saw-blade. A first bearing pivotally mounts the elongated saw-blade holder in the housing. A drive imparts a reciprocating up and down movement to the elon- gated saw-blade holder. A cam arrangement imparts a reciprocating movement to the elongated saw-blade holder and includes a body rotatably mounted in the housing and operatively connected to the drive. The rotating body has formed thereon a continuous cam surface extending about the axis of rotation thereof. The cam arrangement also includes a carrier and a resilient member. The carrier is mounted in the housing so as to be reciprocally movable in a direction transverse to the elongated saw-blade holder and carries a bearing for slideably holding the saw-blade holder. The resilient member urges the carrier into engagement with the cam surface whereby the carrier is reciprocated in response to the rotational movement of the cam surface causing a saw-blade attached to the saw- blade holder to trace out an enclosed path.
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