Cutting – Means to drive or to guide tool – With simple rectilinear reciprocating motion only
Patent
1993-08-05
1994-12-20
Phan, Hien H.
Cutting
Means to drive or to guide tool
With simple rectilinear reciprocating motion only
72408, 83631, 8369871, 100264, 100290, B26D 508, B23D 1502, B30B 118
Patent
active
053737652
ABSTRACT:
An apparatus for driving upper and lower tool parts for punching, cutting and stamping, and more particular to such an apparatus using a rotary screw rod and a nut member threadedly engaging with the screw rod so as to move up or down therealong. The apparatus comprises a pair of reversible small power prime movers, a plurality of screw rod pairs, each of which consists of a first screw rod having an unthreaded extension and a hollow second screw rod embracing the unthreaded extension therein so as to freely rotate relative to the first screw rod, a pair of means for transmitting rotary forces from the pair of prime movers respectively to the first screw rods and to the hollow second screw rods, a plurality of nut member pairs, each of which consists of a first nut member and a second nut member respectively threadedly engaged with the first and second screw rods so as to move up or down when the screw rods are rotated in a first or second direction therealong, first and second tool parts respectively connected to the first and second nut members so as to move toward or apart with each other.
REFERENCES:
patent: 1457265 (1923-05-01), Peck
patent: 3030842 (1962-04-01), Goltermann
patent: 3148574 (1964-09-01), Heigl et al.
patent: 3376728 (1968-04-01), Nemessanyi
patent: 3971275 (1976-07-01), Mach
patent: 4881399 (1989-11-01), Bocharov et al.
patent: 5123342 (1992-06-01), Camossi
Patent Abstracts of Japan, vol. 7, No. 261 (m-257) (1406) 19 Nov. 1983 (JP-A-58-143,909).
Asano Kazuo
Takai Toshihiro
Phan Hien H.
Tsukishima Kikai Co., Ltd.
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