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专利名称：Chuck mount发明人：Bernhard Palm申请号：US07/199846申请日：19880527公开号：US04968191A公开日：19901106
摘要：The chuck body is centered on the power tool drive spindle by placing thesmooth bore in the body over the smooth cylinder on the spindle with the recesses onthe body axially moved onto the lugs (splines) on the shoulder of the spindle. Theretaining screw is threaded into the end of the spindle and the screw head forces thechuck body against the shoulder. Neither the screw nor the bore/cylinder transmittorque; only the drive lugs transmit torque so the chuck can't jam on the spindle. Thismount works with keyed chucks or keyless chucks as illustrated where the three inclinedjaws are threadably engaged by split nut having a retainer pressed thereon. A clutchsleeve is biased rearward from the split nut and is moved towards the nut to engageinterference lugs on the sleeve with lugs on the nut to restrain nut rotation to open orclose the jaws. As the jaws approach full open, they push the sleeve to disengage thelugs. A spline coupler restrains sleeve rotation but can be omitted. This chuckconstruction can mount directly onto standard threaded splindles of existing tools.
申请人：MILWAUKEE ELECTRIC TOOL CORPORATION
代理人：Bayard H. Michael
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