Anti-backlash nut
An anti-backlash nut for engaging a threaded screw includes an anti-backlash nut body extended along a longitudinal axis configured and adapted to receive a screw, the anti-backlash nut body including a first threaded section having a first inner diameter with a first internal thread and a second threaded section integral to the first threaded section having a second internal thread, where the first thread and the second thread have an equal pitch and are out-of-phase with respect with each other.
1. An anti-backlash nut for engaging a threaded screw comprising:
an anti-backlash nut body extended along a longitudinal axis configured and adapted to receive a screw, the anti-backlash nut body including:
a first threaded section having a first inner diameter with a first internal thread;
a second threaded section integral to the first threaded section having a second internal thread, wherein the first thread and the second thread have an equal pitch and are out-of-phase with respect with each other; and
a third section positioned axially between the first threaded section and the second threaded section, wherein the third section includes a deformation feature comprising a pair of through holes transverse to the longitudinal axis and perpendicular to each other.
2. The anti-backlash nut of claim 1 , wherein the third section is non-threaded.
3. The anti-backlash nut of claim 1 , wherein the third section is integral to the first threaded section and the second threaded section.
4. The anti-backlash nut of claim 1 , wherein the anti-backlash nut body includes a single outer diameter for the first threaded section, the second threaded section, and the third section.
5. The anti-backlash nut of claim 1 , wherein the anti-backlash nut body includes an axially uninterrupted outer diameter.
6. The anti-backlash nut of claim 1 , wherein the anti-backlash nut body includes a deformable material.
7. The anti-backlash nut of claim 1 , wherein the anti-backlash nut body is disposed within a camera shutter system.
8. The anti-backlash nut of claim 1 , wherein the pair of through-holes do not overlap with each other along a line parallel to the longitudinal axis.
9. The anti-backlash nut of claim 1 , wherein the pair of through-holes are disposed such that a line parallel to the longitudinal axis does not intersect more than one of the pair of through-holes.
10. The anti-backlash nut of claim 1 , wherein a cross section of at least one of the pair of through-holes is a circle.
11. The anti-backlash nut of claim 1 , wherein the third section has an inner diameter that is larger than the first inner diameter.
12. The anti-backlash nut of claim 11 , wherein the first inner diameter is stepped to the second inner diameter.
13. The anti-backlash nut of claim 1 , further comprising the screw wherein the anti-backlash nut body is configured to move along the screw threaded therein.
14. The anti-backlash nut of claim 13 , wherein the screw is connected to a motor for rotationally driving the screw.