A cam driver includes a support, a cam, a motor, and a retracting torque applicator. The support supports an object. The cam moves the support. The motor rotates the cam and maintains a position of the cam. The retracting torque applicator applies torque to the cam in a direction to move the object away from a counter object that faces the object.

A cam driver includes a support, a cam, a motor, and a retracting torque applicator. The support supports an object. The cam moves the support. The motor rotates the cam and maintains a position of the cam. The retracting torque applicator applies torque to the cam in a direction to move the object away from a counter object that faces the object.

A mechanism for raising and lowering an armrest for a seat includes an armrest, a rotatable hub, and an actuating linkage between the armrest and the hub, the rotatable hub having a cam that operates the actuating linkage to raise the armrest wherein the cam can rotate through a first angle of rotation where the actuating linkage is not operated a second angle of rotation where the actuating linkage is operated. The cam can rotate through a third angle of rotation where the actuating linkage is not operated, this angle being different to the first angle of rotation. The cam is torsionally linked to the rotation of a seat member.

A mechanism for raising and lowering an armrest for a seat includes an armrest, a rotatable hub, and an actuating linkage between the armrest and the hub, the rotatable hub having a cam that operates the actuating linkage to raise the armrest wherein the cam can rotate through a first angle of rotation where the actuating linkage is not operated a second angle of rotation where the actuating linkage is operated. The cam can rotate through a third angle of rotation where the actuating linkage is not operated, this angle being different to the first angle of rotation. The cam is torsionally linked to the rotation of a seat member.

A method of attaching the adjustment mechanism of a linear actuator with the drive assembly of the linear actuator without the use of traditional assembly techniques such as threaded fasteners, welds or rivets, so that when the adjustment mechanism and drive assembly are aligned and assembled, they lock together.

A method of attaching the adjustment mechanism of a linear actuator with the drive assembly of the linear actuator without the use of traditional assembly techniques such as threaded fasteners, welds or rivets, so that when the adjustment mechanism and drive assembly are aligned and assembled, they lock together.

A developing cartridge includes a first gear, a second gear, and a protrusion. The first gear is rotatable about a first axis extending in a predetermined direction. The second gear is configured to engage with the first gear and rotatable about a second axis extending in the predetermined direction. The protrusion extends in the predetermined direction and circularly movable together with rotation of the second gear. The first gear is movable in a direction away from the second gear from a first position to engage with the second gear to a second position to disengage from the second gear.

A developing cartridge includes: a first gear; a second gear; a gear cover; and a protrusion. The first gear is rotatable about a first axis extending in a predetermined direction. The first gear is movable from a first position to a second position. The second gear is rotatable about a second axis extending in the predetermined direction upon receipt of a drive force from the first gear. The gear cover has an opening and covers at least a portion of the second gear. The protrusion extends in the predetermined direction. The protrusion is movable with the rotation of the second gear while the first gear moves from the first position to the second position. The protrusion is further movable past the opening at least once after the protrusion moves past the opening once, while the protrusion moves with the rotation of the second gear.

A developing cartridge includes: a first gear; a second gear; a gear cover; and a protrusion. The first gear is rotatable about a first axis extending in a predetermined direction. The first gear is movable from a first position to a second position. The second gear is rotatable about a second axis extending in the predetermined direction upon receipt of a drive force from the first gear. The gear cover has an opening and covers at least a portion of the second gear. The protrusion extends in the predetermined direction. The protrusion is movable with the rotation of the second gear while the first gear moves from the first position to the second position. The protrusion is further movable past the opening at least once after the protrusion moves past the opening once, while the protrusion moves with the rotation of the second gear.

A steering-angle-limiting device of a steer-by-wire system selectively restricts turning of a steering wheel in a forward direction or in a reverse direction and permits turning of the steering wheel in order to inhibit locking of the steering wheel when the steering-angle-limiting device operates abnormally. Rotation of a stopping gear, which is coupled to a steering shaft, is selectively restricted depending on a change in a rotation angle of a cam, whereby the direction in which the steering wheel turns is selectively limited. In addition, when a stopper operates abnormally, the stopper is moved to a position apart from an end of the radius of rotation of the stopping gear, thereby enabling turning of the steering wheel.