Abstract: A pivoting axle system for an aerial lift vehicle with a chassis includes a left axle supporting a left wheel and a right axle supporting a right wheel. The left and right axles are pivotable between a transport position and a working position. A first hydraulic cylinder is connected at one end to the chassis on a right side of a vehicle center line and at an opposite end to the left axle, and a second hydraulic cylinder is connected at one end to the chassis on a left side of the vehicle center line and at an opposite end to the right axle. In the working position, the first and second hydraulic cylinders are prevented from deflection beyond a yield point.

Abstract: A pivoting axle system for an aerial lift vehicle with a chassis includes a left axle supporting a left wheel and a right axle supporting a right wheel. The left and right axles are pivotable between a transport position and a working position. A first hydraulic cylinder is connected at one end to the chassis on a right side of a vehicle center line and at an opposite end to the left axle, and a second hydraulic cylinder is connected at one end to the chassis on a left side of the vehicle center line and at an opposite end to the right axle. In the working position, the first and second hydraulic cylinders are prevented from deflection beyond a yield point.

Abstract: A tricycle includes a mainframe with front and rear sections. The front section may include a steering assembly with a rotatable wheel. The rear section may provide support for two spaced wheels and may be configured to provide a substantially unencumbered open area between the spaced wheels. The tricycle features a guide handle removeably connected to the tricycle and a locking mechanism configured to lock the steering assembly in a predetermined stationary position.

Abstract: A tricycle includes a mainframe with front and rear sections. The front section may include a steering assembly with a rotatable wheel. The rear section may provide support for two spaced wheels and may be configured to provide a substantially unencumbered open area between the spaced wheels. The tricycle features a guide handle removeably connected to the tricycle and a locking mechanism configured to lock the steering assembly in a predetermined stationary position.

Abstract: A tricycle includes a mainframe with front and rear sections. The front section may include a steering assembly with a rotatable wheel. The rear section may provide support for two spaced wheels and may be configured to provide a substantially unencumbered open area between the spaced wheels. The tricycle features a guide handle removeably connected to the tricycle and having a pair of footrests integrally connected to the guide handle adjacent a lower end.

Abstract: A vehicle includes a chassis supporting two front axle assemblies and two rear axle assemblies. Each of the front and rear axle assemblies includes an extendible and retractable axle supporting an independently steerable wheel and a steering mechanism. The axles of the respective front and rear axle assemblies are offset from each other. By providing independently steerable wheels, the vehicle is operable in a plurality of steering modes including two-wheel steer, crab steer and coordinated steer. A steering angle for each steering wheel is determined according to a steering angle of an inside front wheel on a turn-by-turn basis.

Abstract: A tricycle includes a mainframe with front and rear sections. The front section may include a steering assembly with a rotatable wheel. The rear section may provide support for two spaced wheels and may be configured to provide a substantially unencumbered open area between the spaced wheels. The tricycle features a guide handle removeably connected to the tricycle and a locking mechanism configured to lock the steering assembly in a predetermined stationary position.

Abstract: A tricycle includes a mainframe with front and rear sections. The front section may include a steering assembly with a rotatable wheel. The rear section may provide support for two spaced wheels and may be configured to provide a substantially unencumbered open area between the spaced wheels. The tricycle features a guide handle removeably connected to the tricycle and having a pair of footrests integrally connected to the guide handle adjacent a lower end.

Abstract: A vehicle includes a chassis supporting two front axle assemblies and two rear axle assemblies. Each of the front and rear axle assemblies includes an extendible and retractable axle supporting an independently steerable wheel and a steering mechanism. The axles of the respective front and rear axle assemblies are offset from each other. By providing independently steerable wheels, the vehicle is operable in a plurality of steering modes including two-wheel steer, crab steer and coordinated steer. A steering angle for each steering wheel is determined according to a steering angle of an inside front wheel on a turn-by-turn basis.

Abstract: A boom mechanism that is cooperable with a lift vehicle or base structure includes a tower boom and an upper boom liftable in a dependent relationship by a single lifting mechanism. The tower boom and the upper boom are respectively pivotally secured to an upright having a fixed orientation by a tower link or the like. A timing link is secured between the tower boom and the upper boom, and a lifting mechanism is secured between the upright and the upper boom. As the upper boom is driven by the lifting mechanism, the timing link secured to the tower boom causes the tower boom to pivot about a tower boom nose pivot, thereby raising both the upper boom and the tower boom in a dependent relationship. The construction helps to minimize the need for tail and frame counterweight by controlling a position of the platform in configurations of both forward and rearward instability. As a consequence, the gross vehicle weight can be considerably reduced.

Abstract: A hand brake actuator for actuating a caliper brake on a bicycle. The actuator is attached to the handlebar by a mounting bracket. A lever pivotally attached to the mounting bracket actuates the caliper of the bicycle brake. A shroud integrally formed with the lever receives the mounting bracket during pivotal movement of the lever.

Abstract: An audio accessory is provided for mounting to the handlebar of a bicycle. The accessory includes a housing for containing an electronic audio system such as a radio and elongated concavely shaped side portions for engaging upwardly extending diverging extensions of the bicycle handlebar. A pair of straps attached to the front and rear of the housing wrap around the extensions of the handlebars to hold the housing firmly in position in wedging contact with the handlebar.