Actuator and transmission structure thereof
AssigneeTimotion Technology Co., Ltd.
InventorYu-Chang Lin
Life of this patent
Estimating the term…
Abstract
An actuator and a transmission structure thereof. The transmission structure (3) includes a screw nut (31) and a ratchet guiding sleeve (32). The screw nut (31) includes one or a plurality of pawls (311). The ratchet guiding sleeve (32) is mounted on the screw nut (31), and the screw nut (31) is able to rotate relative to the ratchet guiding sleeve (32). The ratchet guiding sleeve (32) includes a ring ratchet (321) disposed on an inner circumference thereof and a plurality of track slots (322) disposed on an outer circumference thereof. One or a plurality of pawls (311) abut against the ring ratchet (321), thereby achieving the effect of smooth movements of the actuator (10) and the transmission structure (3).
Claims18
A transmission structure, comprising:
- a screw nut (31), comprising at least one pawl (311) extended therefrom;
- and
- a ratchet guiding sleeve (32), mounted on the screw nut (31), the screw nut (31) configured to rotate relative to the ratchet guiding sleeve (32), the ratchet guiding sleeve (32) comprising a ring ratchet (321) disposed on an inner circumference thereof and a plurality of track slots (322) disposed on an outer circumference thereof, and the at least one pawl (311) abutting against the ring ratchet (321),
- wherein the ring ratchet (321) is a mechanical mechanism capable of maintaining a rotational movement of the pawl (311) to be at single direction.
An actuator, comprising:
- a housing (1), comprising an outer tube (11), the outer tube (11) comprising an inner wall (12) and defined with an axial direction, the inner wall (12) comprising a plurality of protruding tracks (13) disposed along the axial direction;
- a driving mechanism (2), comprising a lead screw (22) penetrating to an internal of the outer tube (1);
- and
- a transmission structure (3), comprising:
- a screw nut (31), mounted to and engaged with the lead screw (22), and comprising at least one pawl (311) extended therefrom;
- and
- a ratchet guiding sleeve (32), mounted on the screw nut (31), the screw nut (31) configured to rotate relative to the ratchet guiding sleeve (32), the ratchet guiding sleeve (32) comprising a ring ratchet (321) disposed on an inner circumference thereof and a plurality of track slots (322) disposed on an outer circumference thereof, the at least one pawl (311) abutting against the ring ratchet (321), and the plurality of protruding tracks (13) embedded in the plurality of track slots (322).
Dependencies are inferred from the claim text.