RECTILINEAR-MOTION ACTUATOR
First Claim
1. A rectilinear-motion actuator comprising:
- a motor;
a reduction gear mechanism coupled with a motor shaft of the motor; and
a rectilinear, reciprocative motion mechanism for converting a rotary motion of a last-stage gear of the reduction gear mechanism to a rectilinear, reciprocative motion;
wherein the last-stage gear has a pin provided thereon which is offset from its center of rotation;
the rectilinear, reciprocative motion mechanism comprises a movable plate having a slit having a predetermined width and length, and allowing the pin to move within the slit; and
an axis of reciprocative motion of the movable plate is offset from a line passing through a center of the last-stage gear.
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Accused Products
Abstract
A rectilinear-motion actuator includes a motor, a reduction gear mechanism coupled with a motor shaft of the motor, and a rectilinear, reciprocative motion mechanism for converting a rotary motion of a last-stage gear of the reduction gear mechanism to a rectilinear, reciprocative motion. The last-stage gear has a pin provided thereon which is offset from its center of rotation. The rectilinear, reciprocative motion mechanism includes a movable plate having a slit and allowing the pin to move within the slit. The slit is arranged orthogonally to the axis of the motor shaft. The longitudinal center of the slit is located on a line in parallel with the motor shaft axis and passing through the center of the last-stage gear. The axis of reciprocative motion of the movable plate is offset from the line passing through the center of the last-stage gear in a direction away from the motor shaft.
21 Citations
13 Claims
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1. A rectilinear-motion actuator comprising:
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a motor; a reduction gear mechanism coupled with a motor shaft of the motor; and a rectilinear, reciprocative motion mechanism for converting a rotary motion of a last-stage gear of the reduction gear mechanism to a rectilinear, reciprocative motion; wherein the last-stage gear has a pin provided thereon which is offset from its center of rotation; the rectilinear, reciprocative motion mechanism comprises a movable plate having a slit having a predetermined width and length, and allowing the pin to move within the slit; and an axis of reciprocative motion of the movable plate is offset from a line passing through a center of the last-stage gear. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification