Anti-backlash nut assembly
AssigneeKerk Motion Products, Inc.
InventorsKenneth W. Erikson, Keith W. Erikson
Life of this patent
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Abstract
An anti-backlash nut assembly is disclosed of the type which undergoes translational movement along a screw in response to relative rotational movement between the nut and screw. The assembly includes a nut which is axially-split into first and second portions, both of which have an internal thread complementary to the external thread of the screw. The two portions of the axially-split nut are retained in the radial direction by a spacer, and a spring is used to apply biasing in the longitudinal direction to minimize backlash.
Claims8
An anti-backlash nut assembly designed to undergo translational movement along a screw having an external thread thereon in response to relative rotational movement between the nut assembly and screw, comprising, in combination:
- a. a first portion of an axially-split nut having an internal thread complementary to the external thread of said screw;
- b. a second portion of said axially-split nut, said second portion also having an internal thread complementary to the external thread of said screw;
- c. means for retaining said first portion and said second portion of the axially-split nut in an aligned position around said screw whereby their internal threads engage the external threads of said screw;
- and,
- d. means for biasing said first portion and said second portion of the axially-split nut in opposite longitudinal directions.
Dependencies are inferred from the claim text.