Disclosed embodiments provide an improved stimulation device for sexual gratification. An enclosure includes a moveable shaft in a phallic shape, and a vibration surface located near the base of the shaft. The arrangement allows the shaft to be inserted in the vagina of a user while the vibration surface is in contact with the clitoral region of the user. In use, the shaft thrusts back and forth in the vagina. In some embodiments, the enclosure comprises two concave sides and a convex opposing surface. The concave side surfaces are well suited to accommodate the legs of a user. The convex opposing surface enables a rocker mode of operation in which the user places the device on a floor surface such that the convex opposing surface is on the floor, and then straddles the device, enabling a rocking motion during stimulation, which can create an enhanced user experience.

Disclosed embodiments provide an improved stimulation device for sexual gratification. An enclosure includes a moveable shaft in a phallic shape, and a vibration surface located near the base of the shaft. The arrangement allows the shaft to be inserted in the vagina of a user while the vibration surface is in contact with the clitoral region of the user. In use, the shaft thrusts back and forth in the vagina. In some embodiments, the enclosure comprises two concave sides and a convex opposing surface. The concave side surfaces are well suited to accommodate the legs of a user. The convex opposing surface enables a rocker mode of operation in which the user places the device on a floor surface such that the convex opposing surface is on the floor, and then straddles the device, enabling a rocking motion during stimulation, which can create an enhanced user experience.

A male sexual stimulation device that provides a better user experience by combining a mechanical stroking mechanism with a spiraling sleeve that provides rotational stimulation and suctional stimulation to the stroking motion of the mechanical stroking mechanism. The spiraling sleeve is formed at least in part from an elastomeric material with ribbing molded into the interior of the sleeve at an angle to the linear axis of the spiraling sleeve such that elongation or shortening of the spiraling sleeve along the linear axis with a penis inserted therein causes a portion of the sleeve to twist about the linear axis.

A hand-held massage device includes a housing, a first turning plate, a second turning plate, an output rod, and a driving assembly. The housing includes an opening. The first turning plate is accommodated in the housing. The first turning plate has a concave-convex surface. The second turning plate is disposed between the opening and the first turning plate. The output rod is inserted in the second turning plate and rotated with the second turning plate. One end of the output rod is inserted to the opening and another end is abutted to the concave-convex surface. The driving assembly is connected to the first turning plate and the second turning plate. The driving assembly drives the first turning plate to rotate, drives the second turning plate to rotate or simultaneously drives the first turning plate and the second turning plate to rotate.

A scalp massager, including: a housing, a motor, a transmission assembly, and a plurality of massaging head assemblies drive by the transmission assembly. The transmission assembly includes: a worm-and-gear speed reduction assembly and a plurality of driving gears driven by the worm-and-gear speed reduction assembly and horizontally arranged inside the housing. Each of the massaging head assemblies includes: a rocker, a fixing assembly, and a massaging head. The rocker passes through the fixing assembly, an upper end of the rocker is inclinedly inserted into a corresponding driving gear, an intermediate section of the rocker is provided with a ball which is rotatably arranged inside the fixing assembly, a lower end of the rocker protrudes out of the housing, and the massaging head is fixed on the lower end of the rocker.

A joint actuator assembly incudes a motor, a rotating driving member driven by the motor for driving a driven component, and a transmission assembly located between the motor and the rotating driving member that provides speed reduction from the motor to the rotating driving member. The rotating driving member includes a magnetic/electrical coupling comprising a magnetic coupling component configured to magnetically couple with an opposing magnetic coupling of the driven component, and an electrical element configured to provide an electrical connection to an opposing electrical element of the driven component. The actuator and driven component may be combined into a mobility device including a magnetic/electrical coupling system comprising a first magnetic/electrical coupling on the actuator assembly that magnetically and electrically couples to a second magnetic/electrical coupling on the driven component. The magnetic coupling system includes a plurality of magnetic elements located on the first and/or second magnetic/electrical couplings and opposing electrical elements for electrical connection when the actuator assembly and the driven component are joined together.

A joint actuator assembly for a legged mobility device includes a motor that drives a joint connector for driving a joint of the mobility device, and a three-stage transmission of speed reduction to result in a high torque, low speed output. The first stage may include a small sprocket mechanically connected to the output shaft of the motor, and a large sprocket driven by a cable chain to provide the first speed reduction. The second stage may include a small central helical gear mechanically connected to the first stage output, and two opposing larger first and second outer helical gears that mesh with the central gear to provide the second speed reduction. The third stage may include a cable reel assembly including an output reel and a cable element that interconnects the output of the second stage and the output reel to provide the third speed reduction.

A sex toy comprising a body housing a motor; a shaft coupled to the motor; a massaging member mounted over the shaft; and a controller coupled to control the motor to drive the massaging member in a reciprocating motion along the length of the shaft is described. The reciprocating motion results in a change in length of the sex toy. The change in length may comprise about 20 mms to about 100 mms; about 25 mm to about 90 mm; or about 30 mm to about 85 mm. One full stroke of the reciprocating motion may be performed in about 0.5 to about 2.0 about seconds; about 0.6 to about 1.5 seconds; or about 0.7 to about 1.0 seconds.

An actuator includes a plurality of power transmitters configured to transmit power sequentially, and an elastic element configured to connect a first power transmitter and a second power transmitter that are adjacent to each other and perform a coaxial rotation motion, among the plurality of power transmitters.

A driving module including a driving source configured to generate power, a gear train including a decelerating gear set configured to receive driving power from the driving source and a ring gear attached to one side thereof, and a rotary joint including at least one planetary gear configured to rotate using power received from an output end of the decelerating gear set and to revolve along the ring gear is disclosed.