Abstract: A first elongated shaft and a second elongated shaft are removably coupled together at a connector to facilitate collapsing of a handle of the shovel. A spade is attached to a distal end of the first shaft. The connector has two parts, with one of the two parts attached to each of the ends of the shaft that are adjacent to each other. One of the two parts of the connector includes an insert and the other of the two parts includes the receiver, with the insert fitting into the receiver in a removable but secure fashion. The shafts are formed of a robust durable material such as fiber reinforced polymer formed from a pultrusion method. A grip is optionally provided on a proximal end of the second shaft.

Abstract: A wheel assembly is for a unitractor. The wheel assembly has a wheel, a static hub and an internal electrical motor. The wheel has a rim, a traction member arranged to the periphery of the rim and a plurality of magnets arranged to the inside of the rim. The hub has a stator having spherical windings. The wheel is rotatably connected to the hub via at least one bearing. At least one side panel extends from the rim and to the at least one bearing. At least one of an energy source and a controller for controlling the energy source is positioned in the hub. The hub is provided with a coupling member for an implement frame. A unitractor having the wheel assembly is also described.

Abstract: An effector assembly includes: a segment defining a conduit between proximal and distal ends and containing a slidable output member; a first shape-memory transducer affixed between the proximal end and the output member; a second shape-memory transducer affixed between the distal end and the output member; an electrical subassembly to selectively supply current to bias the first transducer to a first memory state and bias the second transducer to a second deformed state, for sliding the output member in a first direction, or bias the second transducer to a second memory state and bias the first transducer to a first deformed state, for sliding the output member in a second direction; a second segment movably coupled to the distal end; and a linkage between the output member and the second segment, to move the second segment relative to the segment in response to sliding of the output member.

Abstract: A charging hub for a base station that is configured to receive an unmanned aerial vehicle (UAV) during docking. The charging hub includes a first bracket and a second bracket that is operatively connected to the first bracket such that the second bracket is movable in relation thereto along a vertical axis of movement to thereby reposition the charging hub from a retracted position into an extended position and facilitate electrical connection of the charging hub to the UAV.

Abstract: Embodiments of a golf course maintenance drone include a housing and a wing assembly coupled to the housing, the wing assembly including a propeller that is configured to provide lift to the housing. In addition, the drone includes a golf course maintenance assembly coupled to the housing. The golf course maintenance assembly is configured to fill divots, repair pitch marks, rake bunkers, or collect debris on the golf course.

Abstract: The invention relates to a track assembly for a tracked vehicle. Said track assembly includes a track support beam configured to support road wheels, a drive wheel member, and a drive arrangement for drive wheel member operation and an endless track disposed around said road wheels and drive wheel member. Said drive arrangement includes a drive unit for driving said drive wheel member, wherein said drive arrangement includes a drive axle being configured to be coaxially arranged relative to a centre axis of said drive wheel member for rotating said drive wheel member. Said drive unit is configured to be journaled in bearings to a portion of the drive axle. Said drive unit includes a torque arm configured to be connected to said track support beam so as to essentially prevent rotation of said drive unit about said centre axis.

Abstract: A clutch for lifting a concrete component, including a toroidal connector, a latch in the form of a locking ring movable relative to the toroidal connector between a disengaged condition and an engaged condition, the locking ring having a handle extending radially outwardly from the toroidal connector, and a coupler for coupling the toroidal connector to a lifting apparatus, wherein the coupler includes a first part and a second part pivotal relative to the first part, the coupler being arranged to limit pivotal movement of the second part relative to the first part.

Abstract: Disclosed is an intelligent folding bicycle with a power wheel, including a front frame assembly and a back frame assembly folded through a rotating assembly, a fixing assembly movably arranged between the front frame assembly and the back frame assembly, a front power wheel assembly movably and detachably arranged on the front frame assembly, a back wheel assembly movably arranged on the back frame assembly, a handle assembly arranged above the front frame assembly, a cushion assembly arranged on the back frame assembly, and two pedals movably and symmetrically arranged on the front frame assembly or the back frame assembly, respectively. According to the present invention, functions of detaching the power wheel and folding the bicycle are achieved.

Abstract: A sheet transportation device includes a guide roll along which a sheet is to be wound. The sheet includes a plurality of tabs provided intermittently in a longitudinal direction along at least one end in a width direction. The guide roll includes a cylindrical roll main body and a short-diameter portion connected with the roll main body so as to be outer, in the width direction of the sheet, to the roll main body. The roll main body is located closer to a center, in the width direction, of the sheet than a transportation path for the end. A portion of the sheet that is closer to the center than the end is wound along the roll main body. The short-diameter portion is connected with the roll main body via a stepped portion, and has an outer diameter shorter than an outer diameter of the roll main body.

Abstract: In a pipe, a first corner portion, a second corner portion, and a third corner portion are formed sequentially from a guide direction upstream stream as a result of an axial direction intermediate portion of the pipe being bent in three places. The first corner portion and the second corner portion are bent in a substantially identical plane, and the third corner portion is bent in a direction deviating from the substantially identical plane. The radius of curvature of the third corner portion is set larger than the radius of curvature of the first corner portion.

Abstract: The present invention relates to a body (2) that is an aircraft, at least one engine (3) that is located on the body (2) and generates the power required for the flight of the aircraft, and at least one exhaust (4) that is located on the engine (3) and transmits the fluid (A) heated inside the engine (3) due to the operation of the engine (3) to the outside of the aircraft.

Abstract: A mobile engine-generator vehicle that uses the same motor system for mobility as it does for electrical power generation. The mobile engine-generator vehicle is configured to provide electrical power to an external load via an electrical outlet mounted to the vehicle.

Abstract: A hangar is provided for an unmanned aerial vehicle, and is suitable for being arranged on a vehicle. The hangar includes a hangar body, the hangar body being configured to accommodate the unmanned aerial vehicle; a charging apparatus, the charging apparatus being arranged in the hangar body, and the charging apparatus being configured to charge an unmanned aerial vehicle battery, wherein the unmanned aerial vehicle battery includes a first battery mounted on the unmanned aerial vehicle and/or a second battery outside the unmanned aerial vehicle; and a battery pick-and-place apparatus, the battery pick-and-place apparatus being arranged in the hangar body, and the battery pick-and-place apparatus being configured to detach the first battery from the unmanned aerial vehicle and/or mount the second battery into the unmanned aerial vehicle.

Abstract: A robot tool for automatically lifting/lowering a vehicle, including a control system, an image system, a plurality of jacks and a driving device. The image system has aiming devices and can capture images above the jacks. The control system can exchange data with the outside world and store data which includes commands, setup information, characteristic parameters and images of vehicles. The control system can obtain positioning images from image system containing information of relative position in horizontal direction between vehicle lifting points and the corresponding jacks. The control system can analyze said positioning images and compare them with the received data to navigate said driving device to move said jacks horizontally, so that each of at least two lifting points of said vehicle can be vertically aligned by a jack below, said control system is capable of operating the jacks to raise or lower the lifted vehicle.

Abstract: Technology is disclosed herein for dispensing stacked spacecraft. A stack of spacecraft may be joined together in an accordion configuration by dis-engageable links. A dis-engageable link may join two adjacent spacecraft at one edge of the spacecraft. Some of the links are on one side of the stack with other links on an opposite side of the stack to provide the accordion configuration. After the tie-down mechanism releases the stack of spacecraft from a launch adaptor the stack unfolds. Initially, the dis-engageable links continue to hold the spacecraft together in the accordion configuration with the angle between each pair of adjacent spacecraft increasing. After a pair of adjacent spacecraft have unfolded a sufficient amount to prevent collision, the dis-engageable links release one of the spacecraft to thereby dispense the spacecraft.

Abstract: An electric powered steering assembly includes a housing with a cylindrical portion, an interior wall of the cylindrical portion defining a first and second grooves extending in an axial direction, the first and second grooves having inwardly tapered walls. A ball screw is disposed in the housing, extending in the axial direction, and defining a through hole extending in a radial direction having a first and second ends. A ball nut is disposed in the housing surrounding the ball screw and configured to rotate relative to the housing. A first anti-rotational pin is disposed in the first end of the through hole, a second anti-rotational pin is situated in the second end of the through hole, and a spring is disposed between the anti-rotational pins. The spring is configured to bias the first and second anti-rotational pins in a radially outward direction towards the first and the second groves respectively.

Abstract: An on-orbit assembly auxiliary device for space structures includes a plurality of first link rods, one end of the first link rod is hinged with a plurality of second link rods, and an opening assembly for expanding the second link rod is provided on the second link rod; the opening assembly includes a plurality of first hinge rods and third hinge rods, and each of the second link rods is provided with a chute; a first slider and a second slider are slidably provided in each chute; every two adjacent first sliders are rotatably connected through the first hinge rod; every two adjacent second sliders are connected through the third hinge rod; and the first slider close to the first link rod is rotatably connected to the first link rod through the first hinge rod. A rotating assembly for providing rotational force is provided on the top second link rod.

Abstract: A flying object includes: a fuselage; a wing that extends laterally from the fuselage and can generate lift during cruising; and a thrust generation unit that can generate thrust. The wing includes a fixed wing portion fixed to the fuselage, and a deployable wing portion deployable forward in a front-rear direction from the fixed wing portion, and a plane area of the wing in a deployed state in which the deployable wing portion is deployed forward in the front-rear direction is larger than a plane area of the wing in a superposed state in which the deployable wing portion is superposed on the fixed wing portion.

Abstract: A ground station of a UAS for an unmanned aerial vehicle (UAV) includes a landing pad assembly and a carousel assembly that allow for passive removal and replacement of a battery from and to a UAV. The UAS can include a battery replacement system that uses the mechanical movement of a landing pad of the ground station to control movement of a battery door of the landing pad assembly.

Abstract: A server device (corresponding to one example of “information processing apparatus”) includes an acquisition unit that acquires a state of a user who appreciates an exhibit (P) (corresponding to one example of “appreciated object”), an estimation unit that estimates an appreciation pattern, which is a type of an appreciation style of the user, based on the state of the user acquired by the acquisition unit, a determination unit that determines a mode of a guide regarding the exhibit (P) presented to the user in accordance with the appreciation pattern estimated by the estimation unit, and a guide control unit that executes guide control in which control is performed such that the guide is presented to the user in accordance with the mode of the guide determined by the determination unit.