The subject matter of this specification can be embodied in, among other things, a linear-to-rotary apparatus that includes a linear actuator having an actuator housing including a piston chamber, a piston shaft disposed in the piston chamber, and a rotor apparatus. The rotor apparatus includes a rotary joint defining a rotational axis, a rotor arm extending radially from the rotary joint and configured to at least partially pivot about the rotary joint, and a torque linkage pivotably connected to the rotor arm. The torque linkage is also attached to an end of the piston shaft of the piston at a pivot connection joint, where the pivot connection joint defines a pivot axis that is substantially perpendicular to the translation axis of the piston shaft.

An oscillating gardening device includes a drive unit and at least one cam gear that is configured to be driven by the drive unit and has at least one guide section configured to guide at least one element. The guide section is rotatable about an axis of rotation and closed relative to the rotation axis in the circumferential direction. The guide section is arranged eccentrically with respect to the axis of rotation and deviates at least substantially from one or more of a circular shape and a circular ring shape in the circumferential direction. The oscillating gardening device in at least one embodiment is configured as one or more of hedge shears, grass shears, and branch shears.

An oscillating gardening device includes a drive unit and at least one cam gear that is configured to be driven by the drive unit and has at least one guide section configured to guide at least one element. The guide section is rotatable about an axis of rotation and closed relative to the rotation axis in the circumferential direction. The guide section is arranged eccentrically with respect to the axis of rotation and deviates at least substantially from one or more of a circular shape and a circular ring shape in the circumferential direction. The oscillating gardening device in at least one embodiment is configured as one or more of hedge shears, grass shears, and branch shears.

The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.

The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.

The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.

The present invention provides a curvature-adjustable backboard assembly and a curved display device. The curvature-adjustable backboard assembly of the present invention includes a curvable backboard, a slider-crank mechanism, and a first low-speed position-limiting electric machine. The slider-crank mechanism comprises a central pivot and a first rail that are fixed to the backboard, a first slider mounted to the first rail, a first crank that is rotatable about the central pivot as being driven by the first low-speed position-limiting electric machine, and a first connection rod having two ends respectively and pivotally coupled to the first slider and the first crank, wherein when the first crank is driven to rotate, the first connection rod drives the first slider to move along the first rail and during the movement of the first slider along the first rail, a height of an arched form of the backboard with respect to the central pivot at a location where the first slider passes may vary accordingly so as to allow for easy and efficient variation of a curvature of the backboard according to a desired curving condition.

A biopsy device includes a body, a needle, a cutter, and a cutter drive mechanism. The needle extends distally from the body. The cutter is movable relative to the needle to sever a tissue sample. The cutter drive mechanism is driven by a rotary drive cable and is configured to both rotate and translate the cutter. The cutter drive mechanism is further configured to reverse the transition direction of the cutter wile the drive provided by the rotary drive cable is in a continuous rotary direction.

A sleep induction device for oscillating a bed to induce a user of the bed to sleep can be applied to a bed of any size. A bed including a drive leg support including a movable leg holder slidable in a predetermined direction within a predetermined range, a drive means for reciprocally sliding the movable leg holder within a predetermined range, and a driven leg support including the movable leg holder, wherein the sleep induction device oscillates a bed having legs mounted on the drive leg support and the driven leg support by reciprocally oscillated by reciprocally sliding the movable leg holder of the drive leg support.

A sleep induction device for oscillating a bed to induce a user of the bed to sleep can be applied to a bed of any size. A bed including a drive leg support including a movable leg holder slidable in a predetermined direction within a predetermined range, a drive means for reciprocally sliding the movable leg holder within a predetermined range, and a driven leg support including the movable leg holder, wherein the sleep induction device oscillates a bed having legs mounted on the drive leg support and the driven leg support by reciprocally oscillated by reciprocally sliding the movable leg holder of the drive leg support.