Abstract: An improved walker has a detachable propulsion unit, which is attached to the walker by a platform member which extends forwardly from the propulsion unit, with an upwardly extending walker structure partially attached to the platform member. The user steps onto the propulsion unit while support on either side by the handles of the walker. The platform member is so attached to the propulsion unit as to allow a left section and a right section of the propulsion unit to be independently movable with respect to one another, thereby allowing operation of the propulsion unit. The propulsion unit may be a hover board or power board.

Abstract: A battery system assembly for a bicycle is provided. The battery system assembly includes a frame cavity liner, a first cover slideably attached to the frame cavity liner and movable between a first position and a second position with respect to the frame cavity liner, a first magnet interposed between the frame cavity liner and the first cover, a battery container configured to accommodate a rechargeable battery and having a second magnet disposed to face the first magnet, said battery container detachably attached to the frame cavity liner. When the first cover is located at the first position, the frame cavity liner and the battery container are attached one another by magnetic force between an aligned first magnet and second magnet. When the first cover is located at the second position, the first magnet and the second magnet repel each other, thereby detaching the battery container from the frame cavity liner.

Abstract: A motor-assisted joint system is provided to improve maneuverability and safety of an articulated bus. The motor-assisted joint system is enabled when the articulated bus is operated in an active damping mode. An articulated joint with a flat motor is used. According to the velocity of the articulated bus, a highly sensitive damping force is calculated and an opposing force is generated to balance the inertia of the articulated bus when an oversteering event or a tire slip event occurs. Consequently, the driving performance of the articulated bus in various aspects is enhanced.

Abstract: A saddle type vehicle to improve the workability in fastening a frame and an engine together and thereby to enhance productivity. The saddle type vehicle includes a head pipe, a main frame extending rearwardly from the head pipe, and a seat rail located rearwardly of the main frame for supporting a seat. The main frame is fastened to the engine by fastening members being directed from an outer side toward an inner side in the vehicle widthwise direction. A knock pin is provided between the main frame and the engine, in a position in the vicinity of at least one of the fastening members.

Abstract: A gooseneck coupler may be used on a towing vehicle to help tow certain types of towed vehicles, such as trailers. The gooseneck coupler may include a hitch ball attachment member selectively securable to a hitch ball of a towing vehicle, and a support member attached to the hitch ball attachment member, the support member including first and second ends. The gooseneck coupler may also include a trailer attachment member configured to secure a portion of a towed vehicle thereto, the trailer attachment member positionable on the support member between the first and second ends of the support member, where the support member is free of a telescoping relation with the trailer attachment member.

Abstract: A steering system for an agricultural vehicle has at least one steering cylinder for changing a steering angle of the agricultural vehicle, a hydraulic main steering valve for pressurizing the at least one steering cylinder, a steering transducer for actuating the main steering valve, a steering boost for controlling an adjustment characteristic between the steering transducer and the at least one steering cylinder and a sensor system for detecting an external signal of the agricultural vehicle. The steering boost controls the adjustment characteristic on the basis of the detected external signal.

Abstract: A snowmobile footrest adapted to be disposed on a side of a snowmobile tunnel includes a plurality of interconnected ribs. At least one first rib extending in a first direction includes an upper first rib surface and a lower first rib surface defining a first rib height therebetween. A pair of vertical first rib surfaces, extending generally in a vertical direction between the upper and lower first rib surfaces, define a first rib thickness therebetween. The first rib height is greater than the first rib thickness. At least one second rib is connected to the at least one first rib. Each second rib extends in a second direction, the second direction being at an angle with respect to the first direction. The at least one first rib and the at least one second rib define at least one space therebetween. Snowmobiles having the footrests are also disclosed.

Abstract: A golf cart hitch assembly may be attached to a golf cart in a manner to evenly distribute the weight of a towed element across the frame of the golf cart. This may be helpful in towing a relatively substantial element, such as a trailer. One advantage of the inventor's golf cart hitch is that it requires relatively little or no permanent modification to the golf cart itself. Another advantage is the ability to attach one or more conventional ball hitches at different locations on the assembly. In its simplest form, the assembly includes a pair of brackets for attachment to the frame of the golf cart, such as via bolts or screws, and a plate attached to both brackets, the plate including one or more locations for the attachment of one or more ball hitches.

Abstract: An energy efficient vehicle and a disc-type dynamic motor thereof are disclosed. The vehicle comprises front wheels and rear wheels, and a gasoline engine is assembled in the vehicle for driving a generator producing power. The power is transported to a capacitor battery via a circuit control system and then to disc-type dynamic motors, which are assembled with the rear wheels, from the capacitor battery via two power lines respectively, whereby the disc-type dynamic motors directly driving the vehicle travelling at high-speed and high torque via the wheels. Accordingly, the energy efficient vehicle does not include transmission devices, such as the clutch, the transmission, the power transmission shaft, and the differential. The power produced by the generator is directly provided to the disc-type dynamic motors to drive the vehicle travelling and is enough to drive the disc-type dynamic motors, so the vehicle does not need to stop for charging.

Abstract: A travelling frame of a travelling device positioned between a center frame and a travelling motor attachment portion includes an upper plate extended toward the center side of the vehicle to form an extended portion. A long hole into which travelling motor hydraulic piping is inserted is formed in the upper plate along the extended portion. The travelling motor hydraulic piping extends from a lead-out hole opened in an end plate of the center frame, through the long hole of the upper plate and a long hole opened in an end plate, and inserted into the travelling motor attachment portion.

Abstract: In one embodiment, a safety trailer has semi-tractor hitches at both ends and a safety wall that is fixed to one side of the trailer. That side, however, can be changed to the right or left side of the road, depending on the end to which the truck attaches. A caboose can be attached at the end of the trailer opposite the tractor to provide additional lighting and impact protection. Optionally, the trailer can be equipped with overhead protection, lighting, ventilation, onboard hydraulics, compressors, generators and other equipment, as well as related fuel, water, storage and restroom facilities and other amenities.

Abstract: A mechanical steering system for a wheelchair to permit a user's foot to pivotably adjust a pair of caster wheels of the wheelchair is provided. The system includes a platform coupled to a frame of the wheelchair, a foot controller assembly pivotably mounted to the platform and having a foot plate to receive the user's foot and a rod coupled to the foot plate, a drag linkage member coupled to the rod of the foot controller assembly, and a pair of lever arm assemblies pivotably mounted to the drag linkage member, each lever arm assembly having a lever rod coupled to a fork member, the fork member being coupled to one of the caster wheels. Pivotable movement of the foot plate is transferred through the drag linkage member to permit both lever rods of the lever arm assemblies to pivot, thereby enabling simultaneous pivotal adjustments of the caster wheels.

Abstract: Provided is a vehicle that can improve vehicle posture control or operation performance during accelerating turn. A vehicle is provided with: a left drive wheel and a right drive wheel connected to a motor; a required drive power amount input device for inputting a required drive power amount; and a required turn amount input device for inputting a required turn amount. The vehicle further includes a turn control device that adjusts a power difference between the left drive wheel and the right drive wheel on the basis of a time derivative value of the required drive power amount in addition to the required turn amount.

Abstract: A stand on mower including a pedestal with a deck height adjustment lever positioned adjacent the pedestal for operator use while standing behind the pedestal. A cross yoke, height position lock, and floating height mechanisms are also taught for mounting the deck off of the mower frame.

Abstract: A bicycle including a frame, a fork rotationally coupled to the frame within a head tube of the frame, and a wheel rotationally coupled to the fork. The fork has a steerer tube, and the bicycle further includes a stem that is coupled to the steerer tube, and a handlebar coupled to the stem for steering the wheel. The handlebar supports an actuator adapted to control a bicycle component. The bicycle also includes a cable housing that is disposed in the handlebar, and a cable that is coupled to the actuator and routed internally within the handlebar and the stem toward the head tube. The portion of the cable within the handlebar is routed through the cable housing, and the portion of the cable within the stem is exposed.

Abstract: An electric vehicle enables cooling performance for a DC/DC converter to be improved and includes a steering mechanism supporting a front wheel, a head pipe supporting the steering mechanism, a frame member extending from the head pipe backward and downward, a front cowl covering the head pipe, the front cowl hanging and extending to a lower-half of the front wheel, an electric motor rotating and drive the rear wheel, a DC/DC converter disposed in the frame member behind the front wheel in a posture facing a travelling direction to convert voltage, and a heat radiation fin extending in a vehicle vertical direction, the heat radiation fin being provided in a front face of the DC/DC converter, the front face facing the front wheel. The front cowl expands to left and right sides of the DC/DC converter in the vehicle width direction to collect travelling wind to the heat radiation fin.

Abstract: A ball bearing for rotatably supporting a steering shaft, which is comprised of an input shaft and an output shaft connected to each other via a torsion bar is secured by a lock nut. The lock nut has an inside diameter Y1 greater than a maximum outside diameter X6 of the sensor body of a torque sensor mainly configured from a permanent magnet, first and second yoke members, and a magnetic sensor, which are disposed on the outer periphery of the steering shaft. With this configuration, the torque sensor and the lock nut radially overlap with each other, thus reducing the size of a device. Also, because of the lock nut being assembled so as to pass through the outer peripheral side of the torque sensor, component parts can be installed from one direction, thus improving the assembling workability of the device.

Abstract: A motorcycle suspension comprising a fork having a steering bar suitable for connecting mechanically to a steering mechanism of a motorcycle, an oscillating bar having a first end at which it forms a junction with said steering bar, and a second end at which it connects to a support which houses a rotation pin of an associable wheel so as to turn, said rotation pin defining a rotation axis for the wheel itself. The suspension comprises a shock absorber unit which extends from an attachment head, at which it is mechanically connected to the steering bar, to an attachment foot, at which it is connected to the support. Advantageously, the shock absorber unit, at the attachment foot, connects to the support by the interposition of mechanical coupling means having a hinge axis which is contained in a plane perpendicular to the rotation axis of the wheel.

Abstract: A reaction force actuator to be used in a steer-by-wire steering device includes an operating-side shaft, a motor, and a friction drive transmission. The operating-side shaft rotates integrally with an operating member that a driver operates. The motor includes a cylindrical motor output shaft disposed coaxially on an outer circumference of the operating-side shaft. The friction drive transmission changes a speed of a rotary motion of the motor output shaft and transmits the rotary motion to the operating-side shaft.

Abstract: A trailer dolly for joining a trailer to a towing vehicle has a frame mounted on an axle for a pair of wheels. The frame supports a hitch ball assembly that is positionable on the frame for allowing the tongue-weight of a towed trailer that is coupled to the hitch ball to be shifted from a position over the wheels of the dolly to a position that increases traction of the wheels of the towing vehicle.