A propulsion apparatus using sound radiation force according to an exemplary embodiment of the present invention includes: an ultrasound generation unit which is installed at one side of an object to be operated, generates ultrasound, and provides propulsive force to the object to be operated by using sound radiation force of the ultrasound; and an ultrasound control unit which is coupled to one side of the ultrasound generation unit, and increases propulsive force to be provided to the object to be operated by controlling intensity of the ultrasound generated by the ultrasound generation unit.

In an aspect, a toy assembly is provided, and includes a toy assembly housing, an extensible object inside the toy assembly housing, an extension mechanism, and an extension member power source. The extensible object includes a base, and first and second extension members. The extension mechanism is operable to drive the first and second extension members towards extended positions, and is operatively connected to the second extension member via a lost motion connection. Driving of the extension mechanism by the extension mechanism power source drives the first extension member towards the extended position for the first extension member to break or open the toy assembly housing to expose the extensible object while consuming at least a portion of the lost motion in the lost motion connection. Upon consuming the lost motion, further driving the extension mechanism drives the first and second extension members towards the extended positions.

The Rollback Ball or Ballmerang is a ball toy consisting of a ball shell and a mechanical tracking device tracking the ball shell by using friction force or magnetic force converting the moving ball kinetic energy to potential energy, and then releasing the potential energy rolling the ball back at the same straight line path to the same launching destination when rolling the ball in any direction on a flat floor.

The Rollback Ball or Ballmerang is a ball toy consisting of a ball shell and a mechanical tracking device tracking the ball shell by using friction force or magnetic force converting the moving ball kinetic energy to potential energy, and then releasing the potential energy rolling the ball back at the same straight line path to the same launching destination when rolling the ball in any direction on a flat floor.

In an aspect, a toy assembly is provided, and includes a toy assembly housing, an extensible object inside the toy assembly housing, an extension mechanism, and an extension member power source. The extensible object includes a base, and first and second extension members. The extension mechanism is operable to drive the first and second extension members towards extended positions, and is operatively connected to the second extension member via a lost motion connection. Driving of the extension mechanism by the extension mechanism power source drives the first extension member towards the extended position for the first extension member to break or open the toy assembly housing to expose the extensible object while consuming at least a portion of the lost motion in the lost motion connection. Upon consuming the lost motion, further driving the extension mechanism drives the first and second extension members towards the extended positions.

A model vehicle with body mount components are provided. A tongue member attached to a model vehicle body with a first and second tongue member is configured to engage a first securing member attached to a model vehicle chassis. A top surface of the second tongue member draws the model vehicle body towards the model vehicle chassis when the second tongue member engages the first securing member. A lever member with a lever handle, jaw clamp, and a lever pivot is configured to pivot between an engage and an unengaged position. The jaw clamp engages with a second securing member in the engaged position. The lever member further contains a retaining mechanism that is configured to rotate between a retained and unretained position. The retaining mechanism inhibits the lever handle from moving from the engaged to the unengaged position when the retaining mechanism is in the retained position.

An action robot includes a connector configured to connect a body to a movable part, a joint including a rotational body fastened to the movable part, a joint shaft provided to protrude from the rotational body, and a joint shaft supporting part provided in the connector to have a ring shape, the joint shaft being inserted into the joint shaft, a wire connected to the movable part to pull the movable part in a direction in which the joint is bent, a wire path provided in the connector, the wire path including an inlet which is disposed in the body and through which the wire passes, and a supporter disposed in the body to support the wire. An upper end of the supporter overlaps the inlet in a horizontal direction.

Many devices with “limbs” or “arms” are susceptible to damage when a user bends or twists a joint of the limb or arm beyond its design point or in a direction other than intended. This is common with children's toys. Accordingly, it would be beneficial to provide children with toys employing fluidic actuators that can be bent, twisted, deformed and yet recover subsequently allowing the intended motion to be performed. Further, it would be beneficial by providing devices that employ fluidic actuators, and hence are essentially non-mechanical, to provide users not only of toys but other devices with driving mechanisms that are not susceptible to wear-out such as, by stripping drive gears, etc., thereby increasing their reliability and reducing noise. Fluidic devices allow for high efficiency, high power to size ratio, low cost, limited or single moving part(s) and allow for mechanical springless designs as well as functional reduction by providing a piston which is both pump and vibrator.

Many devices with “limbs” or “arms” are susceptible to damage when a user bends or twists a joint of the limb or arm beyond its design point or in a direction other than intended. This is common with children's toys. Accordingly, it would be beneficial to provide children with toys employing fluidic actuators that can be bent, twisted, deformed and yet recover subsequently allowing the intended motion to be performed. Further, it would be beneficial by providing devices that employ fluidic actuators, and hence are essentially non-mechanical, to provide users not only of toys but other devices with driving mechanisms that are not susceptible to wear-out such as, by stripping drive gears, etc., thereby increasing their reliability and reducing noise. Fluidic devices allow for high efficiency, high power to size ratio, low cost, limited or single moving part(s) and allow for mechanical springless designs as well as functional reduction by providing a piston which is both pump and vibrator.

A model vehicle with body mount components are provided. A tongue member attached to a model vehicle body with a first and second tongue member is configured to engage a first securing member attached to a model vehicle chassis. A top surface of the second tongue member draws the model vehicle body towards the model vehicle chassis when the second tongue member engages the first securing member. A lever member with a lever handle, jaw clamp, and a lever pivot is configured to pivot between an engage and an unengaged position. The jaw clamp engages with a second securing member in the engaged position. The lever member further contains a retaining mechanism that is configured to rotate between a retained and unretained position. The retaining mechanism inhibits the lever handle from moving from the engaged to the unengaged position when the retaining mechanism is in the retained position.