Shaft lockout
OwnerKeith Byardinventor
Life of this patent
Estimating the term…
Abstract
A shaft lockout has a clamp body that is configured to open and close for locating around a shaft of an electric machine. The clamp body has a clamp bottom portion and a clamp top portion that are hingeably coupled together and form a shaft aperture configured to extend around the shaft of the electric machine. An eyebolt extends between the clamp top portion and clamp top portion and has a bolt extension with bolt threads configured to receive a nut to secure the clamp body in a closed configuration. The shaft is restrained from rotating by a shaft set screw configured to thread into a set screw aperture in the clamp body to press against said shaft and a machine wedge screw configured to thread into a machine wedge aperture, also in the clamp body, and wedge against said electric machine.
Claims20
A shaft lockout for a shaft of an electric machine comprising:
- a) a clamp body comprising:
- i) a clamp bottom portion;
- a clamp top portion that is hingeably coupled to said claim bottom portion;
- wherein the clamp body is configured to pivot about a pivot axis from an open configuration to a closed configuration, and wherein said closed configuration the clamp body is configured to extend around said shaft of said electric machine;
- iii) a set screw aperture that is threaded;
- iv) a machine wedge aperture that is threaded and configured at an offset angle of at least 10 degrees to a length plane of the clamp body;
- b) a nut;
- c) an eyebolt coupled to the clamp bottom portion and having a bolt extension with bolt threads configured to receive said nut to secure the clamp top portion to the clamp bottom portion in said closed configuration;
- d) a shaft set screw configured to thread into said set screw aperture to press against said shaft;
- e) a machine wedge screw configured to thread into said machine wedge aperture and wedge against said electric machine;
- wherein said shaft is prevented from rotating by the shaft set screw pressing against said shaft with the machine wedge screw pressing against the electric machine.
A shaft lockout for a shaft of an electric machine comprising:
- a) a clamp body comprising:
- i) a clamp bottom portion;
- ii) a clamp top portion that is hingeably coupled to said claim bottom portion;
- wherein the clamp body is configured to pivot about a pivot axis from an open configuration to a closed configuration, and wherein said closed configuration the clamp body is configured to extend around said shaft of said electric machine;
- iii) a set screw aperture that is threaded;
- iv) a machine wedge aperture that is threaded and configured at an offset angle of at least 10 degrees to a length plane of the clamp body;
- b) a hinge plate extending between the clamp top portion and the clamp bottom portion;
- wherein the clamp top portion pivots about the hinge plate;
- and
- the hinge plate is coupled to the clamp top portion by a first pin and coupled to the clamp bottom portion by a second pin;
- c) a nut;
- d) an eyebolt coupled to the clamp bottom portion, said eyebolt comprising:
- i) a bolt extension with bolt threads configured to receive said nut to secure the clamp top portion to the clamp bottom portion in said closed configuration;
- ii) a pin aperture;
- wherein the eyebolt is coupled to the clamp body by a pin that extends through the clamp bottom portion and through said pin aperture of the eyebolt;
- e) an elongated washer that is configured between the nut and the clamp body with the clamp body in said closed configuration;
- f) a shaft set screw configured to thread into said set screw aperture to press against said shaft;
- g) a machine wedge screw configured to thread into said machine wedge aperture and wedge against said electric machine;
- wherein said shaft is prevented from rotating by the shaft set screw pressing against said shaft with the machine wedge screw pressing against said electric machine.
Dependencies are inferred from the claim text.