US 4,095,914 AGranted

Fastener for securing a shaft to a plate

OwnerWilbur J. Thomseninventor

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Abstract

Fastening apparatus is disclosed comprising a hollow cone, the tapered end of the cone having screw threads thereon for receiving a mating nut having a tapered opening conforming to the dimensions of the tapered end of the cone, the tapered opening having mating screw threads therein. The tapered end of the cone has a slot or a plurality of slots projecting from the outer surface of the cone member towards the opening. The cone member is adapted to be received on a shaft, the threading of the nut on the end of the cone after the cone member is placed on the shaft locking the cone to the shaft. A flange may be provided towards the base of the cone member. Additionally, the cone member may be locked onto the shaft by an additional locking member such as a set screw passing through the cone member such as the flange portion thereof. A plate may be provided which extends between the base of the cone and the tapered end of the cone member and is secured thereto through the head of the set screw in one embodiment.

Claims1

Dependent claims

Fastener apparatus comprising cone means having a longitudinal opening, said opening running the full length of said cone means, said opening adapted to receive shaft means, said cone means having screw threads on the surface extending longitudinally from the tapered end towards the base thereof, longitudinal slot means in the tapered end of said cone means, said longitudinal slot means projecting from said screw threads into said opening, nut means having mating threads therein adapted to threadably engage said threads on said cone means, said mating threads extending around a cone shaped opening in said nut means, the surface of said cone shaped opening being substantially the same dimensions as the outer conical surface of the tapered end of said cone means, the base of said cone means terminating in flange means extending away from said opening, plate means removably attached to said flange through locking means, said plate means projecting towards said screw threads, said locking means comprising a set screw, said set screw extending into a head projecting beyond said flange, said plate having an opening therein for receiving the head of said set screw, plate securing means extending from said head of said set screw for holding said plate on said apparatus, said plate securing means comprising an opening in said head of said set screw, key means insertable through said opening in said head for engaging the surface of said plate and for holding said plate against said flange when said plate is positioned on said set screw.

Dependencies are inferred from the claim text.