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US 2022/0154807 A1Published application
Nut with flexible fingers and self-aligning members
AssigneePacific Bearing Company
InventorsRobert Schroeder, Kent Proffitt, Kollin Proffitt, Keith Cummings, Caleb Thibodeaux
Life of this patent
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Abstract
A nut assembly for use with lead screws is provided. The nut assembly includes a nut member and an adjustment arrangement that can independently adjust the biasing of flexible fingers of the nut member.
Claims22
A nut assembly for engaging external threads a lead screw comprising:
- a nut member including:
- an annular base portion;
- and
- at least a first flexible finger and a second flexible finger joined to the base portion, each of the first flexible finger and the second flexible finger extending axially from the base portion, each of the first flexible finger and the second flexible finger extending between a first end joined to the base portion and a second free end;
- and
- threading on an inner periphery of the first and second flexible fingers for engaging with the external threads of a lead screw;
- an adjustment arrangement including:
- a cap member extending around the first and second flexible fingers;
- a first adjustment member movably mounted to the cap member to move radially relative to the central axis, the first adjustment member biasing the first flexible finger radially towards the central axis;
- and
- a second adjustment member movably mounted to the cap member to move radially relative to the central axis, the second adjustment member biasing the second flexible finger radially towards the central axis, the radial positioning of the second adjustment member being independently adjustable from the radial positioning of the first adjustment member.
8 more elements
A nut assembly for engaging external threads a lead screw comprising:
- a nut member including:
- an annular base portion having an outer peripheral surface that forms part of a theoretical sphere having a spherical center point;
- at least a first flexible finger and a second flexible finger joined to the base portion, each of the first flexible finger and the second flexible finger extending axially from the base portion, each of the first flexible finger and the second flexible finger extending between a first end joined to the base portion and a second free end;
- and
- threading on an inner periphery of the first and second flexible fingers for engaging with the external threads of a lead screw;
- a cap member extending around the first and second flexible fingers and axially abutting a portion of the annular base portion;
- a nut adaptor attached to the cap member and axially abutting a portion of the annular base portion, with the annular base portion being axially fixed between the cap member and the nut adaptor;
- and
- the annular base portion being pivotable about the spherical center point within cap member.
6 more elements
Dependencies are inferred from the claim text.