B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 31/20 (2006.01)
Patent
CA 2096340
An improved chuck which retains the shank (100) of a cutting element (101) securely therein and may be manufactured from a single piece of metal provided with a throughbore (114) which is threaded at one end (120) to mate with a driving unit. The other end of the throughbore (114) may be sized to receive a cutting tool shank (100) or a collet (115) with a longitudinal slot (107) extending completely through the collet (115) making it resiliently insertable within the throughbore (114), A clamping means is positioned offset from the centerline of the tool shank (100) or collet (115). The clamping means may comprise two sleeves (108, 109) machined to mate with the peripheral surface (140) of the collet (115) or with tool shank (100). The sleeves (108, 109) are retained in a bore (116) extending transversely through and displaced from the center of the chuck. A threaded element (110) draws the sleeves (108, 109) into contact with the collet (115) or tool shank ( 100), maintaining a precisely centered cutting tool (101) orientation.
Gowling Lafleur Henderson Llp
J.p. Walsh/j.l. Marmo Enterprises
Walsh Joseph P.
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