Anti-backlash nut assembly
AssigneeHelix Linear Technologies
InventorChristopher A. Kahnert
Life of this patent
Estimating the term…
Abstract
An anti-lash nut assembly for installation on a threaded rod and including a lead nut, a collar, and a spring positioned between the lead nut and the collar. The lead nut has a set of tabs extending radially outward from a rear end of the body. The collar has a set of clearance slots on an inside surface. The set of clearance slots are configured for sliding of the set of tabs through the clearance slots in the rear direction. The collar has a set of ramps on an inside surface. Each of the set of ramps is configured for engagement with each of the set of tabs to prohibit axial movement of the collar in the rear direction.
Claims21
An anti-lash nut assembly for installation on a threaded rod, the nut assembly comprising:
- a lead nut having a front face, a rear face, an elongated body extending axially in the rear direction, a set of tabs extending radially outward from a rear end of the body, and a threaded bore for mating with the threaded rod;
- a collar having a set of clearance slots on an inside surface, wherein the set of clearance slots permit sliding of the set of tabs through the clearance slots in the rear direction;
- and
- a spring positioned between the lead nut and the collar;
- and
- wherein the collar has a set of ramps on an inside surface, wherein each of the set of ramps engage each of the set of tabs when assembled;
- and
- wherein the lead nut can be assembled to the collar by inserting the rear end of the lead nut into the collar to compress the spring, with the tabs in the clearance slots, and then rotating one of the lead nut and the collar so the tabs and the ramps engage to retain the lead nut and the collar together under force of the spring.
An anti-lash nut assembly for installation on a threaded rod, the nut assembly comprising:
- a lead nut having a front face, a rear face, an elongated body extending axially in the rear direction, a set of tabs extending radially outward from a rear end of the body, and a threaded bore for mating with the threaded rod;
- a collar having a set of clearance slots on an inside surface, wherein the set of clearance slots permit sliding of the set of tabs through the clearance slots in the rear direction;
- and
- a spring positioned between the lead nut and the collar;
- and
- wherein the collar has a set of engagement surfaces on an inside surface, wherein each of the set of engagement surfaces engage each of the set of tabs when assembled;
- and
- wherein the lead nut can be assembled to the collar by inserting the rear end of the lead nut into the collar to compress the spring, with the tabs in the clearance slots, and then rotating one of the lead nut and the collar so the tabs and the engagement surfaces engage to retain the lead nut and the collar together under force of the spring.
Dependencies are inferred from the claim text.