Cutlery – Cutting tools – Saw
Patent
1995-09-22
1997-06-03
Payer, Hwei-Siu
Cutlery
Cutting tools
Saw
8369921, 279 76, B27B 1902
Patent
active
056342772
ABSTRACT:
A cutting tool such as jigsaw generally comprises a main body, a plunger provided for the main body to be reciprocally movable in an axial direction thereof, the plunger being provided with an opening and a cutout axially formed to a portion opposing to the opening, a cutting blade to be mounted to the plunger, and a blade mounting mechanism for mounting the blade to the plunger. The blade mounting mechanism comprises a support member inserted into the opening of the plunger and provided with an engaging groove formed along a direction of mounting the blade, a ring member disposed to outer peripheral surfaces of the support member and the plunger, the ring member being formed with a tapered portion at an inner peripheral surface thereof opposing to the cutout of the plunger, and an elastic member for urging the ring member in a direction that a diameter of the tapered portion of the ring member reduces, thereby fastening the blade by the tapered portion of the ring member and the engaging groove of the support member.
REFERENCES:
patent: 2627882 (1953-02-01), Kleinsmith
patent: 3927893 (1975-12-01), Dillon et al.
patent: 4106181 (1978-08-01), Mattchen
patent: 4441255 (1984-04-01), Hoffman
patent: 4528753 (1985-07-01), Kuhlmann et al.
patent: 4601477 (1986-07-01), Barrett et al.
patent: 5487221 (1996-01-01), Oda et al.
Miyamoto Kouichi
Wada Tatsuya
Payer Hwei-Siu
Ryobi Limited
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