The present invention relates to street sweeper. According to a first aspect of the invention, different mechanisms are disclosed for controlling the movement of the brush-holder arms in a horizontal plane, while also damping side and front impacts. According to a second aspect, a sweeper is disclosed, in which the movement of the brush-holder arms (3) in a vertical plane is imparted by a set of four profile members, arranged in two pairs which each forms a deformable parallelogram, wherein the deformation of the parallelogram is actuated by a jack (25) and the own weight of the sweeping arm. The jack is configured to remain below the upper profile members (11) of the two pairs when the brush-holder arm is raised to its maximum height. According to a third aspect, the suction turbine (103) is arranged in such a way that load losses are reduced during the operation of the sweeper.

The present invention relates to street sweeper. According to a first aspect of the invention, different mechanisms are disclosed for controlling the movement of the brush-holder arms in a horizontal plane, while also damping side and front impacts. According to a second aspect, a sweeper is disclosed, in which the movement of the brush-holder arms (3) in a vertical plane is imparted by a set of four profile members, arranged in two pairs which each forms a deformable parallelogram, wherein the deformation of the parallelogram is actuated by a jack (25) and the own weight of the sweeping arm. The jack is configured to remain below the upper profile members (11) of the two pairs when the brush-holder arm is raised to its maximum height. According to a third aspect, the suction turbine (103) is arranged in such a way that load losses are reduced during the operation of the sweeper.

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.

A manipulator includes a base body, a first link supported to be capable of advancing and retracting with respect to the base body, a first leaf spring connected to a tip of the first link as a rotation pair by a first base end pin, a second link that is arranged with the first link side by side and is supported to be capable of advancing and retracting with respect to the base body, a second leaf spring connected to a tip of the second link as a rotation pair by a second base end pin in the same direction as the first base end pin, and a driven link that is connected to tips of the first and second leaf springs as rotation pairs by first and second tip pins in the same direction as the first and second base end pins, respectively.

A manipulator includes a base body, a first link supported to be capable of advancing and retracting with respect to the base body, a first leaf spring connected to a tip of the first link as a rotation pair by a first base end pin, a second link that is arranged with the first link side by side and is supported to be capable of advancing and retracting with respect to the base body, a second leaf spring connected to a tip of the second link as a rotation pair by a second base end pin in the same direction as the first base end pin, and a driven link that is connected to tips of the first and second leaf springs as rotation pairs by first and second tip pins in the same direction as the first and second base end pins, respectively.

To provide an expansion device and a movable body including a mechanism for quick deformation. An expansion device includes a main body and a limb portion attached to the main body, in which the limb portion includes a main link connected to the main body via a joint, an end link provided at a front end of the limb portion, at least one or more limb joints that are interposed between the main link and the end link and connect the main link and the end link, and a linear member of which both ends couple an end at the front end side of the limb portion of the end link and the main body and are retractable to one or both of the end link and the main body.

A liftable hinge mechanism includes a base, a connecting component and a pin. The base has a narrow slot. The connecting component has an axle hole. The pin slidably passes through the narrow slot and rotatably inserts into the axle hole. The connecting component can be rotated and/or shifted relative to the base via the pin. A reciprocating engaging mechanism includes a shaft, a rotary plate, a first engaging component and a linkage module. The rotary plate is rotatably disposed on the shaft. The linkage module is connected between the rotary plate and the first engaging component. Rotation of the rotary plate drives the linkage module to move the first engaging component into a locking mode or an unlocking mode. The liftable hinge mechanism and the reciprocating engaging mechanism are applied to an airtight device with a housing and a cover capable of being folded and unfolded.

A liftable hinge mechanism includes a base, a connecting component and a pin. The base has a narrow slot. The connecting component has an axle hole. The pin slidably passes through the narrow slot and rotatably inserts into the axle hole. The connecting component can be rotated and/or shifted relative to the base via the pin. A reciprocating engaging mechanism includes a shaft, a rotary plate, a first engaging component and a linkage module. The rotary plate is rotatably disposed on the shaft. The linkage module is connected between the rotary plate and the first engaging component. Rotation of the rotary plate drives the linkage module to move the first engaging component into a locking mode or an unlocking mode. The liftable hinge mechanism and the reciprocating engaging mechanism are applied to an airtight device with a housing and a cover capable of being folded and unfolded.

Robotic systems include an articulated arm having a deformable assembly consisting of having a plurality of bars connected by parallel pivot axes to form at least one deformable structure, the distal end of the deformable assembly supporting a mechanical interface, the system further including two actuators which rotate two of the bars, and a third actuator controlling the translational movement of the deformable assembly in a direction parallel to the pivot axes.