Abstract: The carrier vehicle includes a coaxial two-wheel vehicle including two wheels arranged on the same axial centerline, a cart, and a coupling mechanism to couple the coaxial two-wheel vehicle to the cart. The coupling mechanism 4 includes a roll rotation tolerance portion that tolerates, when a traveling direction of the coaxial two-wheel vehicle is defined as a roll axis, rotation of the coaxial two-wheel vehicle in a roll direction. Further, the coupling mechanism includes a pitch rotation tolerance portion that tolerates, when a left-and-right direction of the coaxial two-wheel vehicle is defined as a pitch axis, rotation of the coaxial two-wheel vehicle in a pitch direction.

Abstract: A fifth-wheel hitch system is described including: (a) a framework having an upright support; wherein the framework is adapted to be secured to a towing vehicle; (b) a support plate member secured to the top of the support member; wherein the plate member preferably includes a raised central portion and lower side portions; (c) a yoke member attached to the support plate member with fasteners which allow the yoke to be tilted away from the raised central portion of the plate member and then biased back to a central position; and (d) a receiver member attached to the yoke member for receiving and releasably connecting to the king pin of a trailer to be towed.

Abstract: A bicycle is configured for conversion between expanded and folded arrangements and includes a main frame assembly comprising a main frame member coupled with the front assembly, rear wheel carriers extending from the main frame member along a first orientation and a bottom bracket protruding from the main frame member along a second orientation. A front assembly of the vehicle includes a quick release, a head tube configured to receive a fork and a seat tube configured to receive a saddle. The main frame assembly further includes elongate seat stays coupled with the rear wheel carrier and each seat stay includes a latch configured for locking with a quick release provided to the front assembly. With seat stays latches released the head tube and seat tube pivot together relative to the main frame member on a single hinge during conversions between the expanded and folded arrangements.

Abstract: A collapsible wheelchair (CW) may be relatively small and lightweight and may be adapted to be easily collapsed/folded into a callable faint, allowing for easy storage, transport and use. The CW may be adapted to be collapsed/folded and expanded/unfolded in a series of simple steps, executable with one hand, by a person in a seated position, allowing for independent use even by a user with limited physical capabilities. The CW may have a relatively small width, allowing for access into constricted spaces. The rear and interior space between its large wheels may be unobstructed, leaving an unobstructed inner width, allowing the CW to be maneuvered in reverse over standing objects, such as a standard toilet. The seat of the CW may be equipped with a trap door, to allow the use of a toilet while seated on the CW. The rim may be beneath the seat for cleanliness.

Abstract: A displacement detection apparatus for a linear motion mechanism includes a nut member, a rod including elongate grooves elongating in an axial direction of the rod and a through hole, a permanent magnet disposed parallel to the rod, a magnet block made of synthetic resin and including a retaining portion holding the permanent magnet, a pair of leg portions extending from ends of the retaining portion that are spaced apart, and a nut made of metal insert-molded at an intermediate position between the pair of leg portions, and a displacement sensor disposed opposing to the permanent magnet. The pair of leg portions and the nut of the magnet block are disposed in the elongate groove of the rod and the magnet block is fixed to the rod by a bolt screwed to the nut, the bolt penetrating through the through hole extending through the rod.

Abstract: An interchangeable colored bicycle has a bicycle framework with a main bicycle frame component part, a handlebar stem component part, and a wheel fork component part. Clear transparent tube members enclose and circumscribe these component parts. Free-flowing, colored liquids fill the interior spaces between the tube members and the component parts. The colored liquids in each interior space are different, thus allowing the bicycle to assume multiple colors. The free-flowing liquids can be drained from the tube members and different colored liquids can be poured into the interior spaces to change the colors of the bicycle.

Abstract: This invention is directed to a variable speed drive system comprising: a frame having front and rear wheels; reciprocating pedals rotatably attached to the frame for supporting the rider; a pedal cam attached to one of the pedals at a hub where a distance between the hub and a first sprocket of the pedal cam is less than a distance between the hub and a second sprocket of the pedal cam; a coupling cam attached at a front axle and operably connected to the pedal cam so that when the pedal cam rotates when force is exerted downward on the pedal, the coupling cam rotates in an opposite direction from the pedal cam; and a drive sprocket carried by the coupling cam and linked to a wheel sprocket by a drive chain so that when the coupling cam rotates, the drive sprocket rotates causing the rear wheel to rotate.

Abstract: The disclosure relates to a threaded shaft for a roller screw drive, for example for an electromechanical brake booster or an electromechanical power steering system. According to the disclosure, a helical coil with a flat, square-threaded annular cross-section is arranged on a thin-walled pipe, the pipe being formed onto a root region of the helical coil by the application of high pressure from the inside of the pipe.

Abstract: Vibration generators are provided on a vehicle to give vibration to the body of an occupant in response to outside information inputted from the outside of the vehicle, or vehicle information outputted from an in-vehicle system. The vibration generators are installed under the seating faces or inside the back of the occupant seats, or in the side wall surface of a fuel tank. The vibration generators are driven by information on predetermined contents among outside information obtained by two-way radio communication with another vehicle using radio communication equipment. The vibration generator provided in the occupant seats can be operated as speaker means producing deep bass sound in response to an audio signal of an in-vehicle audio unit. The resulting configuration enables information to be transmitted to the occupant of the vehicle by vibration given to his/her body, rather than being transmitted audibly or visually.

Abstract: A pressure release device and methods of using the same are disclosed. The pressure release device and/or related methods may be useful for alleviating and/or relieving pressure on skin tissue prone to developing pressure sores and/or tissue that has already developed pressure sores. The pressure release device generally includes one or more relays, logic configured to actuate the one or more relays, one or more motors, and a barrel rotatably connected to at least one of the motor(s) and having one or more straps retractably affixed thereto. Optionally, the pressure release device may be detachably or permanently connected to a surface or frame of a wheelchair.

Abstract: A fuel tank system which has a revised mounting system and a revised location for the fuel system and fuel tanks to improve crashworthiness of the vehicle by reducing the occurrence of tank failure, fuel spillage, fire and/or explosion during and after a collision or similar event, while still providing a sufficient range for the vehicle. The fuel tanks are protected from damage from the side, bottom and between the tanks. The fuel tank mounting system also allows the energy associated with an event to be managed, such as by allowing the fuel tanks to be pushed or moved downwardly and/or laterally by the energy of the impact of a collision or similar event to a position in which the fuel tank is either out of the path of the impact or protected by the chassis or frame of the vehicle.

Abstract: In one embodiment, a handle is attached to a vehicle tiller arm. The handle includes a first pair of gripping portions and a second pair of gripping portions. A first throttle actuator is configured and located such that it is operable by either hand of an operator while the operator grasps each of the first pair of gripping portions while the tiller arm is substantially vertical. A second throttle actuator is configured and located such that it is operable by either hand of an operator while the operator grasps each of the second pair of gripping portions and the tiller arm is not substantially vertical.

Abstract: A rack-driven auxiliary power steering apparatus prevents a ball nut and a nut pulley from idling due to a slip thereof and increases durability when the drive belt is operated by driving of a motor, and minimizes vibrations and noise transferred through the rack bar, the ball nut, and the nut pulley when the rack bar is slid while the nut pulley and the ball nut are rotating, thereby providing a comfortable steering feeling to the driver.

Abstract: A safety brake system for a trailer comprises a brake end having a brake unit adapted to be secured to a trailer and positioned to block movement of the trailer when actuated and an actuation end adapted to be secured to a front end of the trailer. The actuation end comprises a hitch ball coupler having a hand portion defining a concavity adapted to receive a hitch ball of a vehicle. It also comprises a mechanism operatively connected to the hitch coupler and displaceable with respect thereto. The mechanism comprises a probe plunger and a hitched position. The mechanism is connected to the brake unit for actuation of said brake unit. The safety brake system also comprises a biasing unit. A trailer assembly is also provided.

Abstract: A control device, for the rear shock absorber of a bicycle, includes a first air chamber, a second air chamber, a third air chamber, an auxiliary air chamber, and a sliding rod. An air piston is arranged inside one of the first, second and third air chambers. However, those air chambers are respectively provided with an air hole communicating with the auxiliary air chamber. The sliding rod is configured with air tight rings, which are arranged top-to-bottom and tightly touch the inner wall of the auxiliary air chamber. Moreover, the sliding rod is provided with grooves between the air tight rings, so that the axially movement of the sliding rod may manage the first, second and third air chambers to be disconnected or to communicate with one other via the grooves to adjust the damping coefficient of the rear shock absorber.

Abstract: The present invention discloses a tricycle vehicle having a cart. According to the invention the tricycle vehicle includes a riding module (101) having a front wheel (102), a steering assembly (107) and a frame (105) having a rear tube. The tricycle vehicle also includes a cart module (103) having two wheels (104), a body (111) configured to carry a bag, a base having a base frame and a handle (112) configured for steering the tricycle vehicle.

Abstract: A snowmobile (100) has a frame (106) comprising a tunnel (108) and an engine cradle (110) containing an engine (114). A drive track (126) is operatively connected to the tunnel. A front drive axle (127) connected to the engine engages the drive track. A front (102) of the snowmobile comprises a hull connected to the frame and to front telescopic suspension struts (112). The snowmobile also comprises front skis (116) connected at attachment points (150) to the front telescopic suspension struts. The drive track has a front portion (125) defining a track angle (B) between 20 and 40 degrees from horizontal. A horizontal distance (C) between the attachment points and the front drive axle is between 600 mm and 900 mm. The hull has a bottom surface (160) wherein at least a portion has an average hull angle (A) between 10 and 30 degrees from horizontal.

Abstract: A bipod robotic walking apparatus consisting of two feet on the coupler link of a spherical four-bar linkage, for movement in a forward or rearward direction by repeated motions of the four-bar linkage. Three four-bar linkages may be connected in tandem to form a hexapod with three points of contact with the ground.

Abstract: A power transfer device for a four-wheel drive vehicle includes a first shaft for transferring torque to a first driveline, a second shaft for transferring torque to a second driveline, and a transfer mechanism driving the second shaft. A mode clutch assembly drivingly connects the first shaft to the transfer mechanism and includes a clutch gear driven by the transfer mechanism and a mode sleeve. A sprocket hub associated with the transfer mechanism has external drive teeth meshed with internal drive teeth on the clutch gear with a predetermined amount of backlash therebetween. A ball cam mechanism centers the backlash and permits relative rotation between the transfer mechanism and the mode sleeve to circumvent a blocked mode shift.

Abstract: This invention is a bicycle for a standing rider including a frame, a drive support attached to a front support member having a front end and a rear end; a front crank arm rotationally attached to the front end of the drive support and attached to a front sprocket; a rear crank arm rotationally attached to the rear end of the drive support and attached to a rear sprocket; a pedal attached to the front crank arm and the rear crank arm so that when the crank arms rotate, the pedal remains parallel to the ground; a spacing member attached to the drive support and the mail support member so that the drive support is disposed parallel to the ground.