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US 5,123,772 AGranted
Threaded assembly with locking capability
AssigneeCoupling Corporation of America, Inc.
InventorJ. Hilbert Anderson
Life of this patent
Estimating the term…
Abstract
A threaded hub and shaft connection includes a first hub threaded onto a first section of the shaft using a thread shape having a working face rise angle of from 7 to 25 degrees. Preferably a second hub is threaded onto a second section of the shaft inboard of the first hub, and the threads in the second hub and second shaft section also have a working face rise angle of from 7 to 25 degrees. Bolts or set screws engage both of their hubs in such manner as to exert axial force on at least the first hub tending to move the first hub relative to the shaft in the working face rise direction of the thread carrying the first hub.
Claims13
A male/female threaded assembly with locking capability comprising:
- a. a cylindrical male member threaded over a first portion of its length with a thread having a working face with a rise angle of from 7 to 25 degrees;
- b. a female member, having a threaded cylindrical bore that mates with the thread in the male member and being threaded onto the first portion of the male member's length to an axial location at which the female member is free for clockwise or counterclockwise rotation and corresponding axial movement along said first portion;
- and
- c. means for applying axial force to the female member tending to cause movement of the female member relative to the male member in the rise direction of said working face.
1 more element
A hub and shaft connection comprising:
- a. a cylindrical shaft having an end and a first section extending between first and second predetermined points on the shaft, the first section being threaded with a thread having a working face with a rise angle of from 7 to 25 degrees;
- b. a hub having a bore threaded to match the thread on the first section of the shaft and being threaded onto the first section to an axial location at which the hub is free for clockwise or counterclockwise rotation and corresponding axial movement along said first section;
- and
- c. means for applying axial force to the first hub tending to cause movement of said hub relative to the shaft in the rise direction of said working face.
1 more element
A male/female threaded assembly with locking capability comprising:
- a. a cylindrical male member threaded over a first portion of its length with a thread having a working face with a rise angle of from 7 to 25 degrees;
- b. a first female member having a cylindrical bore threaded to mate with the thread in the male member, the first female member being threaded onto the first portion of the male member's length;
- and
- c. means for applying axial force to the first female member tending to cause movement of the first female member relative to the male member in the rise direction of said working face, said means comprising:
- i. a second portion of the male member's length threaded with a thread having a working face with a rise angle of from 7 to 25 degrees, the second threaded portion being adjacent to the first threaded portion;
- ii. a second female member having a cylindrical bore threaded to mate with the thread on the second portion of the male member's length and being threaded onto the second portion of the male member's length in a position axially spaced from the first female member;
- and
- iii. means engaging both female members and adapted to simultaneously apply axial force to each female member in the rise direction of the working face in the respective portion of the male member's length carrying such female member.
5 more elements
A hub and shaft connection comprising:
- a. a cylindrical shaft having an end and a first section extending between first and second predetermined points on the shaft, the first section being threaded with a thread having a working face with a rise angle of from 7 to 25 degrees;
- b. a first hub having a bore threaded to match the thread on the first section of the shaft, the first hub being threaded onto the first section;
- c. a second hub having a bore identical to that of the first hub and being threaded onto the first section of the shaft in a position spaced from the first hub;
- and
- d. means for applying axial force to the first hub tending to cause movement of said hub relative to the shaft in the rise direction of said working face, said means comprising means engaging the first and second hubs and adapted to exert axial forces on the first hub in the rise direction of said working face.
2 more elements
A hub and shaft connection comprising:
- a. a cylindrical shaft having an end, a first section extending between the end and a first predetermined point on the shaft, and a second section adjacent to the first section and extending between second and third predetermined points on the shaft, the first and second sections each being threaded with a thread having a working face with a rise angle of from 7 to 25 degrees, the outside diameter of the first section being equal to or less than the root diameter of the thread in the second section;
- b. a first hub having a bore threaded to match the thread on the first section of the shaft and being threaded onto the first section;
- c. a second hub having a bore threaded to match the thread on the second section of the shaft, and being threaded onto the second section;
- and
- d. means for applying axial force to the first hub tending to cause movement of said hub relative to the shaft in the rise direction of said working face, said means comprising means engaging the first and second hubs and adapted to exert axial force on the first hub in the rise direction of the working face in the first section of the shaft.
2 more elements
Dependencies are inferred from the claim text.