A drive for a hair trimmer include a transmission having a cam follower coupled to a drive lever by a bridge member, and a hinge having a mounting structure coupled to a first end of a plurality of webs, and a cross-bar coupled to a second end of the plurality of webs. A portion of the cross-bar encloses the bridge member to connect the transmission and the hinge.

A spinning arm that converts a rotational motion of a shaft to a linear movement of an object that includes a revolving piece and a rod. The lower end of the rod is connected to the shaft and the upper end is axially connected to the revolving piece in a state of tilting aside in relation to the rod so that the revolving axis line of the revolving piece crosses the rotation axis line of the rod. The revolving piece can move outwards and roll over the object when its tilt is from right to left. When the revolving piece rolls over the object in a first direction it exerts an upward force that moves the object upward, and when it rolls in a second direction it exerts a downward force that moves the object downward.

A spinning arm that converts a rotational motion of a shaft to a linear movement of an object that includes a revolving piece and a rod. The lower end of the rod is connected to the shaft and the upper end is axially connected to the revolving piece in a state of tilting aside in relation to the rod so that the revolving axis line of the revolving piece crosses the rotation axis line of the rod. The revolving piece can move outwards and roll over the object when its tilt is from right to left. When the revolving piece rolls over the object in a first direction it exerts an upward force that moves the object upward, and when it rolls in a second direction it exerts a downward force that moves the object downward.

An Unmanned Aerial Vehicle (UAV) according to various embodiments may include: a housing; a motor arranged in an inner space of the housing; a rotor which is rotated by the motor and includes at least one cam structure; and at least one landing member which serves as at least part of the housing and selectively protrudes from the housing depending on interference of the cam structure. An UAV according to various embodiments may include: a housing; at least one rotor blade arranged in an inner space of the housing; and at least one landing member. The at least one landing member may serve as part of the housing in a closed position and protrudes from the housing in an open position such that a load of the UAV can be supported during landing. Other embodiments are also possible.

Disclosed are an electric spiraling piston and systems, devices, apparatuses, and methods utilizing same. An electric spiraling piston includes a drum around which the piston spirals as it is being retracted. A spinning axis of the drum is functionally connected to the drive shaft of a motor, such that motor torque is relayed to the axis. The axis, when spinning with the drum in a first direction, causes the piston to un-spiral and extend out of a housingwhile rounding its cross sectionto assume a straight, rigid position/orientation. The Axis, when spinning with the drum in a second direction, causes the piston to be retracted back into the housingwhile flattening its cross sectionto assume a spiral orientation within the housing.

Disclosed are an electric spiraling piston and systems, devices, apparatuses, and methods utilizing same. An electric spiraling piston includes a drum around which the piston spirals as it is being retracted. A spinning axis of the drum is functionally connected to the drive shaft of a motor, such that motor torque is relayed to the axis. The axis, when spinning with the drum in a first direction, causes the piston to un-spiral and extend out of a housingwhile rounding its cross sectionto assume a straight, rigid position/orientation. The Axis, when spinning with the drum in a second direction, causes the piston to be retracted back into the housingwhile flattening its cross sectionto assume a spiral orientation within the housing.

[Object] To propose a novel and improved support apparatus in which the apparatus can be miniaturized more effectively, while also minimizing limitations on the attitude of the apparatus.

[Solution] Provided is a support apparatus including: a drive motor, a link mechanism that, by transmitting motive power output from the drive motor, is extendable and contractable in response to the motive power, and a pair of rotating bodies that act as a variable speed mechanism that outputs the motive power to the link mechanism by a reduction ratio according to an attitude of the link mechanism. At least part of the link mechanism forms a trapezoidal link mechanism.

A slider for an actuator, the slider comprises a driving plate that moves under a driving force of a driving unit of the actuator, and a linkage lever channel arranged in the driving plate. A sliding track channel is disposed inside the driving plate, and the slider is sleeved on a sliding track of the actuator through the sliding track channel. When the slider moves along the sliding track of the actuator, a component to be driven is driven to move together. The slider for the actuator of the application has simple assembly process, convenient and quick assembly method, and can be applied to connecting different kinds of components to be driven to meet different user's requirements.

A slider for an actuator, the slider comprises a driving plate that moves under a driving force of a driving unit of the actuator, and a linkage lever channel arranged in the driving plate. A sliding track channel is disposed inside the driving plate, and the slider is sleeved on a sliding track of the actuator through the sliding track channel. When the slider moves along the sliding track of the actuator, a component to be driven is driven to move together. The slider for the actuator of the application has simple assembly process, convenient and quick assembly method, and can be applied to connecting different kinds of components to be driven to meet different user's requirements.

A reciprocating engaging mechanism is applied to an airtight device and includes a shaft, a rotary plate, a plurality of first engaging components and a linkage module. The rotary plate is rotatably disposed on the shaft. A plurality of bridging bars of the linkage module is connected between the rotary plate and the plurality of first engaging components in a respective manner, rotation of the rotary plate drives the plurality of bridging bars to rotate in the same direction, so as to switch the plurality of first engaging components between a locking mode and an unlocking mode.