Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc. – Including integral locking means
Patent
1983-08-30
1986-09-09
Underwood, Donald W.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
Including integral locking means
901 15, 901 21, 901 25, 901 28, B25J 1800
Patent
active
046105980
ABSTRACT:
An industrial robot comprising: a base; a stand rigidly erected on the base; a shoulder securely mounted on the stand; a first arm consisting of upper and lower levers with the base portion pivoted to the shoulder so that the arm can be turned about a first vertical axis; a second arm having its one end pivoted to the other end of the first arm between the upper and lower levers so that the second arm can be turned about a second vertical axis; a vertically movable shaft so supported by the second arm as to allow the linear movement of the shaft along a third vertical axis; a rack parallel to the vertically movable shaft; a guide means for guiding the rack relative to the second arm in only the vertical direction; a coupling means for connecting the vertically movable shaft and the rack at their both ends; a first drive means secured to the shoulder to rotate, through a first power transmission means, the first arm about the first vertical axis; a second drive means secured to the shoulder to rotate, through a second power transmission means, the second arm about the second vertical axis; and a third drive means secured to the second arm to drive the rack in vertical direction through a third power transmission means.
REFERENCES:
patent: 3948114 (1976-04-01), Koinzan
patent: 3986007 (1976-10-01), Ruoff, Jr.
patent: 4428710 (1984-01-01), Grisebach et al.
patent: 4502830 (1985-03-01), Inaba et al.
Pica-Scara, Nitto, 6 pages.
Puha, Pentel, 4 pages.
Arm-Base, Hirata, 6 pages.
Hamada Toyohide
Jinriki Tatenori
Koizumi Kiyohide
Kusakawa Hitoshi
Sugimoto Kouichi
Hitachi , Ltd.
Underwood Donald W.
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