Jig-saw

Details Jig-saw Jig-saw

1977-11-03

1979-02-06

Peters, Jimmy C.

Cutlery

Cutting tools

Saw

74 50, B27B 1102, B27B 1909

Patent

active

041376323

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 elongated 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.

REFERENCES:
patent: 3236111 (1966-02-01), Naslund
patent: 3269197 (1966-08-01), Enders
patent: 3457796 (1969-07-01), Leach et al.
patent: 3890708 (1975-06-01), Bauer
patent: 3978862 (1976-09-01), Morrison
patent: 4031763 (1977-06-01), Eisenberg

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