Abstract: A track-module apparatus comprising: (a) idler-arm axle structure for a vehicle and having leading and trailing idler-arm axles; (b) a leading idler arm rotatably attached to the leading idler-arm axle and extending forwardly to a leading-arm distal end at which a leading ground-engaging idler wheel is rotatably attached and rearwardly to a rearward suspension end; (c) a trailing idler arm rotatably attached to the trailing idler-arm axle and extending rearwardly to a trailing-arm distal end at which a trailing ground-engaging idler wheel is rotatably attached and forwardly to a forward suspension end; (d) bogie-axle structure (i) affixed to one of the idler arms, (ii) having at least one bogie-arm axle, and (iii) positioning the at least one bogie-arm axle adjacent to and below the idler-arm axle of the idler arm to which it is affixed; (e) leading-arm and trailing-arm suspension elements rotatably attached to and extending downwardly from the rearward and forward suspension ends, respectively, and each havi

Abstract: An electric assist bicycle includes an electric motor that generates an assistance force to assist a human force of a rider, a handle to be gripped by the rider with a hand to steer the electric assist bicycle, a manipulation device provided on the handle and including an operation switch that receives a manipulation from the rider and an alternate switch that receives a manipulation from the rider to change functions to be assigned to the operation switch, and a control circuit that performs a control to alter an operation to be executed by the electric assist bicycle depending on whether the rider manipulates the operation switch in a state of keeping the alternate switch manipulated or the rider manipulates the operation switch in a state of not manipulating the alternate switch.

Abstract: An objective of the present invention is to provide users with a kayak transporting apparatus to assist the users in the transportation of a kayak with minimum effort and strain to the users' body. The present invention provides a kayak carrier for a vehicle that can be adjusted to fit various sizes and shapes of kayak. The present invention is a low-profile apparatus compared to other kayak transporting apparatuses. The kayak transporting apparatus is also intended to be easily stored away as the kayak transporting apparatus is light-weight and the components of the apparatus are detachable from each other. Further, the present invention is a hitch attachment for the rear of a vehicle which facilitates the backing of a vehicle compared to a trailer ball attachment of other kayak transporting apparatuses. Thus, the present invention is a light weight, compact, versatile apparatus for transporting kayaks efficiently.

Abstract: An auxiliary power device adapted for use with a bicycle includes a drive unit, first and second one-way transmissions that are adapted to be mounted in a bike frame of the bicycle, a crankshaft and a transmission sprocket. The first one-way transmission is connected between the drive unit and the transmission sprocket. The second one-way transmission is mounted between the crankshaft and the transmission sprocket. When rotation of the transmission sprocket is driven by the drive unit via the first one-way transmission, the second one-way transmission is idling. When rotation of the transmission sprocket is driven by the crankshaft via the second one-way transmission, the first one-way transmission is idling.

Abstract: A drive unit includes an electric motor including an output shaft including an output gear; a pedal crank shaft extending through a housing, rotatably supported by the housing, and including a driven gear; and a transmission to transmit a torque of the output gear of the electric motor to the driven gear. The transmission includes a decelerator rotatably supported by the housing, and an idle gear rotatably supported by the housing. The decelerator increases the torque of the output shaft of the electric motor, and the increased torque is transmitted to the driven gear via the idle gear.

Abstract: A snowmobile has a rear suspension assembly including at least one slide rail, a plurality of idler wheels, a front suspension arm having first upper and lower ends, and a rear suspension arm having second upper and lower ends. The first upper end is connected to a tunnel of the snowmobile. The first lower end is selectively connected to the at least one slide rail. The first lower end is connectable to the at least one slide rail at first and second positions. The first position of the first lower end is vertically higher from a bottom surface of the at least one slide rail than the second position of the first lower end. The second upper end is connected to the tunnel.

Abstract: A snowmobile includes a chassis, at least one ski steerably secured to a front of the chassis, and a skid frame having a rear suspension and one or more slide rails. The rear suspension includes a flexible, composite member affixed on a first end to the one or more slide rails and on a second end to the chassis, wherein the flexible, composite member includes a main body and a secondary body.

Abstract: A quick-release device for a bicycle includes a shaft having a locking assembly at one end and an inner sleeve in another end. The inner sleeve is kept a distance apart from an end edge of a through hole of the shaft to form an inner annular trough portion at an outer end of the through hole. A threaded cylinder is insertedly connected to the inner annular trough portion. A perforation is defined in the threaded cylinder. One axial end of the threaded cylinder has a cylindrical flange. The cylindrical flange is insertedly connected to the inner annular trough portion of the shaft. A bolt is insertedly disposed in the perforation of the threaded cylinder. The bolt passes through the perforation and is inserted into the shaft to be screwed to the inner sleeve, so that the bolt presses and locks the threaded cylinder and the shaft.

Abstract: To allow a wide range of existing bicycles to be easily converted into electric power assisted bicycles, a retrofit electric machine for a bicycle includes: a housing (52) configured to be attached to a frame (18) of a bicycle (10), an electric motor (54) attached to the housing (52); an annular rotating plate (84) mounted on the housing (52) in a rotatable manner to be centered around a rotational center line of a crankshaft (24) for a pedal of the bicycle (10), and connected to the electric motor (54) in a torque transmitting relationship; and a connecting member (90) including a first connecting portion (92) connected to the crankshaft (24) with a shape fit so as to rotate integrally with the crankshaft (24), and a connecting pin (98) secured to the rotating plate (84).

Abstract: A tank trailer may include a plurality of hoppers and a tension bar assembly extending between the hoppers.

Abstract: A jet-powered sled has a body having a control cockpit with control apparatus for an operator to control the jet sled, a set of surface runners adapted to engage a surface upon which the sled is operated, the surface runners removably engaged to spindles coupled to swing arms coupled to the jet sled, and an engine compartment having a jet engine removably mounted in a manner to direct thrust to a rear of the jet sled to propel the jet sled. The jet sled is characterized in that the sled may be adapted specifically to run on water, ice or snow by installing runners adapted for water, ice or snow on the spindles of the swing arms.

Abstract: A vehicle includes a plurality of track systems, a fluid pump, a plurality of fluid lines fluidly connecting the fluid pump to at least some of the tires of the wheels of each of the track systems, a plurality of pneumatic inflation actuators, a plurality of pneumatic deflation actuators, and a system controller. The system controller is in electronic communication with the fluid pump, the plurality of pneumatic inflation actuators, and the plurality of pneumatic deflation actuators. The system controller is operable to selectively adjust fluid pressure in select ones of the wheels of any one of the track systems of the vehicle by actuating corresponding ones of the plurality of pneumatic inflation actuators and the plurality of pneumatic deflation actuators. A track system has at least one of the leading idler wheels, trailing idler wheels, and mid-roller wheels including a tire containing a fluid.

Abstract: A gear assembly includes a first gear and a second gear. The first gear rotates about a first axis, and includes a first plurality of teeth and a first surface extending circumferentially and carried by the first plurality of teeth. The first surface is electrically conductive. The second gear rotates about a second axis and is operably connected to the first gear. The second gear includes an electrically conductive element, a second plurality of teeth, and a second surface extending circumferentially and carried by the second plurality of teeth. The second surface is electrically nonconductive. The electrically conductive element includes a plurality of feelers with each feeler projecting radially outward and into a respective tooth of the second plurality of teeth.

Abstract: A handwheel actuator assembly includes a handwheel shaft configured to receive a handwheel; a feedback device operable to provide a variable level of resistance to rotation of the handwheel shaft; and a handwheel shaft position sensor operable to sense an angular position of the handwheel shaft. The handwheel shaft position sensor may be mounted on a circuit board. The circuit may comprise a controller that is configured to receive signals from the handwheel shaft position sensor.

Abstract: A suction traveling device includes: a main pressure reducing chamber, sub pressure reducing chambers communicating with the main pressure reducing chamber and disposed in drive parts, ventilation holes on a same side of the sub pressure reducing chamber as suction holes and communicating the sub pressure reducing chambers and suction holes, and an open/close unit for releasing the ventilation holes when a pressure in suction chambers formed by a wall surface and the suction holes is equal to a pressure in the sub pressure reducing chamber and for closing the ventilation holes when the pressure in the suction chambers is higher than in the sub pressure reducing chamber. When the ventilation hole is closed, a gap of a size preventing the pressure in the sub pressure reducing chamber from affecting the pressure in the other suction chamber is formed in the ventilation hole.

Abstract: A drive system, wherein: a drive shaft and an output shaft as well as a second motor, to-gether with the second rotor shaft thereof, are arranged coaxially in a first shafting; a multi-stage cross-drive steering transmission of the drive system, together with a sun gear, a ring gear and a planetary carrier, is designed solely as a three-shaft planetary gear stage, which is arranged in a second shafting parallel to the first shafting; and a first motor is arranged in a third shafting together with the first rotor shaft thereof, said third shafting being parallel to the first shafting and to the second shafting.

Abstract: A semitrailer includes a wheel and an electric machine for driving the wheel, wherein the electric machine is configured so as to be operable as an electromotive brake in a braking state.

Abstract: A collapsible trailer that includes a longitudinal beam, a first transverse beam, a second transverse, and a third transverse beam. A first vertical arm is pivotally connected to a first end of the first transverse beam and a second vertical arm is pivotally connected to a second end of the first transverse beam. A third vertical arm is pivotally connected to a first end of the second transverse beam and a fourth vertical arm is pivotally connected to a second end of the second transverse beam. A fifth vertical arm is pivotally connected to a first end of the third transverse beam and a sixth vertical arm is pivotally connected to a second end of the third transverse beam. A first wheel is connected to the fifth vertical arm and a second wheel connected to the sixth vertical arm.

Abstract: An intelligent safety frame capable of easily replacing and protecting battery includes a front beam, a battery mounting box, a rear beam, a cushion mounting seat and a rear tail box mounting seat, wherein a rear tail box is mounted on the rear tail box mounting seat, the cushion mounting seat is rotatably mounted on the rear beam, a battery mounting cavity is defined in the battery mounting box, a threading box is provided on a side of the battery mounting box, a first wire-in cavity is provided in the threading box, a first threading slot is provided on a side of the battery mounting cavity, a wire outlet is provided on a side of the threading box, a second intelligent lock mounting slot is provided at the upper end of the rear beam, and a lock catch is provided on a side of the cushion mounting seat.

Abstract: A rail brace system is designed for use with a snowmobile monorail. The rail brace system includes a brace having a first end, a second end, a length extending from the first end to the second end, a top side, a bottom side, a height extending from the top side to the bottom side, an inner surface, an outer surface, and a width extending between the inner surface and the outer surface. The inner surface is shaped complementary to a first side of a monorail of a snowmobile. The brace includes an opening extending through the width. The brace extends towards the second end to provide support to the monorail. The opening is positioned along the length of the brace to be concentric to a suspension mount hole of the monorail and the outer surface around the opening is configured to provide a mounting surface for a suspension arm.