摘要:
A suspension system (12) for vehicle (10) includes a support structure (18) of a wheel (14) having a forward rolling axis. The suspension system (12) includes a first link (20) rotatably secured at an inner end (40) to the vehicle (10, 42) and in communication with the support structure (18) of the wheel (14) at an outer end (34). The suspension system (12) includes a second link (22) rotatably secured at an inner end (44) to the vehicle (10, 42) and in communication with the support structure (18) of the wheel (14) at an outer end (36). The system also includes a shock absorber (24) having a first end (50) in communication with one of the first link (20) or the second link (22) and a second end (48) rotatably secured to the vehicle (10, 42). The shock absorber (24) is compressible to allow the support structure (18) of the wheel (14) to absorb impact forces imparted thereto during the travel. The shock absorber (24) is located along a longitudinal axis of the vehicle (10).
摘要:
A coupling device (10) for a chair device, such as a wheelchair, includes a plate (20) that is intended to be integrally incorporated in the chair device frame or secured to the frame of the wheelchair. The plate (20) has an attachment system (26) formed by various elements thereof, which is intended for mating with a corresponding engagement device (50) associated with a lift mechanism (52). The attachment system (26) is intended to universally mate with the corresponding engagement device (50) to allow the wheelchair to be secured in position and then lifted to or lowered from an elevated position while the wheelchair is occupied.
摘要:
A dolly wheel steering system includes a dolly wheel, a dolly wheel spindle in communication with the dolly wheel such that the dolly wheel and the dolly wheel spindle are fixedly secured to one another and are rotatable as a single unit. The dolly wheel spindle is in communication with a coupling device and a steering control system. The steering control system and the coupling device are each in communication with a controller to regulate actuation of each. When a signal from the controller requests utilization of steering control, the coupling device applies a restraining force to the dolly wheel spindle to limit free rotation of the dolly wheel. When the rotation of the dolly wheel spindle is thus restrained, the steering control system can effectuate direct steering control of the dolly wheels to provide precise directional control. When the control indicates the normal dolly wheel capability is desired, the restraining force applied to the dolly wheel spindle by the coupling device is relieved and the steering control system is overridden. The coupling device by its characteristics can provide varying resistance to free dolly wheel spindle rotation for restriction of dolly wheel shimmying and oscillation and where otherwise advantageous to reduce free rotation.
摘要:
A dolly wheel assembly for a vehicle includes a dolly wheel and a dolly wheel spindle fixedly secured to the dolly wheel such that the dolly wheel and the dolly wheel spindle rotate together as a single unit. The dolly wheel spindle is in communication with a dampening device so as to apply a resisting force to the dolly wheel spindle. Application of the resisting or braking force restricts or prevents free rotation of the dolly wheel about an axis defined by the dolly wheel spindle. The dampening device is in communication with a controller which causes the dampening device to apply the resisting or braking force or to remove application of the resisting or braking force upon demand to satisfy a variety of different conditions encountered with the vehicle operation considering functional implication of the dolly wheel assembly.
摘要:
A wheel suspension system (10) for a vehicle includes a vehicle wheel (12) having a wheel rim (20) and a tire (24) secured to the wheel rim (20). The wheel (12) is secured to a frame portion of the vehicle by a spindle assembly (14). The spindle assembly (14) includes a wheel carrier arm (16) pivotally secured thereto at a pivot point (43), such that said wheel (12) and said wheel carrier arm (16) rotate together about an axis of rotation defined by said pivot point (43). The wheel carrier arm (16) is in communication with a shock absorption device (18). The shock absorption device (18) is located within a space defined by the wheel (12), such that the shock absorption spring device (18) is hidden when the vehicle wheel (12) is viewed from a side direction. The shock absorption spring device (18) compresses upon an impact force containing said vehicle wheel (12). In the most compact form, the wheel carrier arm (16) and the shock absorbing spring device (18) is packaged within the wheel rim volume such that both are hidden when the vehicle wheel (12) is viewed from a front direction.
摘要:
A modular vehicle assembly includes a power operated module (12) having a drive mechanism (14). The drive mechanism is in communication with a power source (16). The power operated module is in communication with a stability module (18), which engages the ground to provide fore and aft balance.
摘要:
A modular vehicle assembly includes a power operated module (12) having a drive mechanism (14). The drive mechanism is in communication with a power source (16). The power operated module is in communication with a stability module (18), which engages the ground to provide fore and aft balance.
摘要:
A wheel suspension system (10) for a vehicle includes a vehicle wheel (12) having a wheel rim (20) and a tire (24) secured to the wheel rim (20). The wheel (12) is secured to a frame portion of the vehicle by a spindle assembly (14). The spindle assembly (14) includes a wheel carrier arm (16) pivotally secured thereto at a pivot point (43), such that said wheel (12) and said wheel carrier arm (16) rotate together about an axis of rotation defined by said pivot point (43). The wheel carrier arm (16) is in communication with a shock absorption device (18). The shock absorption device (18) is located within a space defined by the wheel (12), such that the shock absorption spring device (18) is hidden when the vehicle wheel (12) is viewed from a side direction. The shock absorption spring device (18) compresses upon an impact force containing said vehicle wheel (12). In the most compact form, the wheel carrier arm (16) and the shock absorbing spring device (18) is packaged within the wheel rim volume such that both are hidden when the vehicle wheel (12) is viewed from a front direction.
摘要:
A coupling device (10) for a chair device, such as a wheelchair, includes a plate (20) that is intended to be integrally incorporated in the chair device frame or secured to the frame of the wheelchair. The plate (20) has an attachment system (26) formed by various elements thereof, which is intended for mating with a corresponding engagement device (50) associated with a lift mechanism (52). The attachment system (26) is intended to universally mate with the corresponding engagement device (50) to allow the wheelchair to be secured in position and then lifted to or lowered from an elevated position while the wheelchair is occupied.
摘要:
An environmental enclosure device for a vehicle includes a passenger compartment formed therein for receipt of an occupant. The device includes a roof portion disposed substantially over the passenger compartment to protect the occupant seated therein from undesirable weather elements or conditions. The device also includes at least one transparent portion extending generally downwardly from the roof portion toward the vehicle such that a space remains between the vehicle and a bottom edge of the transparent portion to allow the occupant to interface with fresh air elements of the outdoors while the enclosure device is in a closed position.