F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 39/284 (2006.01) B23B 29/04 (2006.01) B25B 13/48 (2006.01) B25B 13/56 (2006.01) F16B 23/00 (2006.01) F16B 2/18 (2006.01) F16B 21/16 (2006.01) F16B 35/00 (2006.01)
Patent
CA 2110588
The present invention relates to compressible screw-type locking mechanism including an oversized locking screw (12) and a tool for compressing and rotatively driving the oversized locking screw (12) is a head portion (12a) and extending downwardly from the head portion is a threaded shaft (12G). At least one longitudinal slot (18) extends through the head and at least partially through the shaft to form a locking screw with plural resilient segments. The locking screw assumes a normal expanded state with its threaded pitch diameter being oversized with respect to its companion bore. The locking screw is compressed by engaging the head (12a) thereof with the tool (16). In one embodiment, the compression of the locking screw is achieved through a torquing ac- tion. In a second embodiment, the compression is achieved by the axial movement of the tool. In either case, by relieving the ap- plied torque or removing the tool. In either case, by relieving the applied torque or removing the tool from the locking screw head results in the locking screw expanding within bore and assuming an interference or locked fit within the bore.
Kennametal Inc.
Smart & Biggar
LandOfFree
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