B - Operations – Transporting – 43 – K
Patent
B - Operations, Transporting
43
K
207/14
B43K 21/16 (2006.01) B43L 13/02 (2006.01)
Patent
CA 2038247
ABSTRACT OF THE DISCLOSURE A drawing device for use in a drafting machine includes one length of long casing; a lead guide fixedly secured to the leading end of the casing; one length of pipe member inserted from the other end side of the casing into the same in such a manner as to be axially slidably moved freely; a piece of chuck ring fixedly secured to the interior of the leading end portion of the pipe member; a piece of sleeve fitted closely over and fixedly secured to the outer peripheral surface of the other end side portion of the pipe member; one length of lead stock inserted from the other end side of the pipe member into the same in such a manner as to be slidably moved freely; and a lead chuck fixedly secured to the leading end portion of the lead stock in such a manner that its leading end side portion may be radially deformed or expanded and contracted in cooperation with the chuck ring, and is characterized by further comprising a regu- lating piece fitted over the rear end of the lead stock in such a manner as to be slidably moved freely by a predetermined stroke; and an auxiliary compression coiled spring mounted between the regulating piece and the sleeve so as to normally bias the regulating piece towards the longitudinal rear end side of the lead stock.
Gowling Lafleur Henderson Llp
Ykk Corporation
LandOfFree
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