A patient transport apparatus transports a patient over a floor surface. The patient transport apparatus comprises a support structure and support wheels coupled to the support structure. An auxiliary wheel is coupled to the support frame to influence motion of the patient transport apparatus over a floor surface. The auxiliary wheel is movable to a deployed position with the auxiliary wheel engaging the floor surface and a stowed position with the auxiliary wheel spaced a distance from the floor surface. An actuator assembly including a lift actuator a biasing device, and a biasing load adjustment assembly. The lift actuator is operable to move the auxiliary wheel to the deployed position and to the stowed position. The biasing device configured to bias the auxiliary wheel towards the deployed position. The biasing load adjustment assembly configured to adjust a biasing force being applied by the biasing device to the auxiliary wheel.

There is described a wheelchair comprising a wheelchair frame, a pair of drive wheels configured to contact a ground surface when the wheelchair is in use, each drive wheel rotating about an axis of rotation, at least one front wheel mounted to a front-end portion of the wheelchair frame, and an anti-tip assembly mounted to a rear-end portion of the wheelchair frame, which anti-tip assembly includes at least one pivot arm that is supported onto the rear-end portion of the wheelchair frame so as to be pivotable with respect to the wheelchair frame about a pivot axis. The pivot arm includes a drive wheel attachment point coinciding with the axis of rotation and providing attachment of at least one of the drive wheels and a wheelchair frame attachment point coinciding with the pivot axis and providing attachment of the pivot arm to the rear-end portion of the wheelchair frame. The anti-tip assembly further comprises a rear wheel that is provided at a distal end of the pivot arm, rearward of the drive wheels, and that is configured to contact the ground surface when the wheelchair is in use. The anti-tip assembly is configured to allow the wheelchair frame to tilt backwards into a predetermined stable titled position with the at least one front wheel in a raised position above the ground surface, while the drive wheels and the rear wheel remain in contact with the ground surface. In one embodiment, the pivot arm is attached, via the wheelchair frame attachment point, to a bracket of the wheelchair frame, which bracket is provided with an arcuate opening configured to allow passage of a drive wheel axis of the drive wheel, which drive wheel axis is coupled to the pivot arm, via the drive wheel attachment point, the arcuate opening defining a predetermined range of pivoting movement of the pivot arm with respect to the wheelchair frame.

An electronic gaming machine includes a cabinet and a pair of retractable wheel assemblies mechanically coupled to the cabinet. Each retractable wheel assembly includes a first retractable wheel and a second retractable wheel. The first retractable wheel and the second retractable wheel of each retractable wheel assembly are movable, independently of one another, between a retracted position, in which the pair of retractable wheel assemblies allow the cabinet to contact an external surface, and an extended position, in which the pair of retractable wheel assemblies support the cabinet above the external surface.

A patient transport apparatus transports a patient over a floor surface. The patient transport apparatus comprises a support structure and support wheels coupled to the support structure. An auxiliary wheel is coupled to the support frame to influence motion of the patient transport apparatus over a floor surface. The auxiliary wheel is movable to a deployed position with the auxiliary wheel engaging the floor surface and a stowed position with the auxiliary wheel spaced a distance from the floor surface. An actuator assembly including a lift actuator a biasing device, and a biasing load adjustment assembly. The lift actuator is operable to move the auxiliary wheel to the deployed position and to the stowed position. The biasing device configured to bias the auxiliary wheel towards the deployed position. The biasing load adjustment assembly configured to adjust a biasing force being applied by the biasing device to the auxiliary wheel.

An electronic gaming machine includes a cabinet and a pair of retractable wheel assemblies mechanically coupled to the cabinet. Each retractable wheel assembly includes an elongated structural member including an upper receiving surface and first and second inverted U-shaped portions depending from the upper receiving surface, a first pusher plate pivotably coupled to the first inverted U-shaped portion, a second pusher plate pivotably coupled to the second inverted U-shaped portion, a first retractable wheel mechanically coupled to the first pusher plate, and a second retractable wheel mechanically coupled to the second pusher plate. The first retractable wheel and the second retractable wheel are movable between a retracted position, in which the pair of retractable wheel assemblies allow the cabinet to contact an external surface, and an extended position, in which the pair of retractable wheel assemblies support the cabinet above the external surface.

A patient transport apparatus transports a patient over a floor surface. The patient transport apparatus comprises a support structure and support wheels coupled to the support structure. An auxiliary wheel is coupled to the support frame to influence motion of the patient transport apparatus over a floor surface. The auxiliary wheel is movable to a deployed position with the auxiliary wheel engaging the floor surface and a stowed position with the auxiliary wheel spaced a distance from the floor surface. An actuator assembly including a lift actuator a biasing device, and a biasing load adjustment assembly. The lift actuator is operable to move the auxiliary wheel to the deployed position and to the stowed position. The biasing device configured to bias the auxiliary wheel towards the deployed position. The biasing load adjustment assembly configured to adjust a biasing force being applied by the biasing device to the auxiliary wheel.

A mobile imaging device includes a base having at least one caster, a first drive mechanism that moves the system in a transport mode and translates an imaging component relative to the base in a scan mode, and a second drive mechanism that extends caster relative to the base to raise the base off the ground in the transport mode, and retracts the caster relative to the base to lower the base to the ground in the scan mode. A caster system for a mobile apparatus includes a base containing a housing and a caster, attached to the base, the caster having a wheel defining a wheel axis and a swivel joint defining a swivel axis and a pivot point defining a pivot axis, wherein the caster pivots on the pivot axis as the caster is retracted into the housing and extended out of the housing.

An assembly for lifting and transporting sports equipment, such as a goal. The assembly 100 can be fitted to numerous variations of sports equipment 200 to enable both lifting of the sports equipment and horizontal transportation thereof.

To provide a stage-corresponding caster device being entirely compact, able to smoothly and stably work, and able to easily get over a stage end face, a holder main body 1 attached to an attached member B and having a pair of left and right side wall portions 10, a main wheel supporting member 2 in which the main wheel 7 is pivoted to a lower portion 2b and an upper portion 2a is pivoted to the holder main body 1, a sub wheel supporting member 3 in which the sub wheel 8 is pivoted to a front portion 3c and a rear portion 3d is pivoted to the main wheel supporting member 2 coaxially with the main wheel 7, and a slide roller 30 attached to the sub wheel supporting member 3 on a forward position to the main wheel 7, are provided; and the holder main body 1 has a guiding groove 13 inclined backward and downward in side view on the side wall portion 10 to guide the slide roller 30, the front portion 3c of the sub wheel supporting member 3 is oscillated downward by contact of the main wheel 7 with the stage end face Ja, the sub wheel 8 is pressed to the stage upper face Jb, and the main wheel 7 climbs over the stage end face Ja.

A furniture base (10) is disclosed comprising a frame structure (12) and an actuator device (33) that is rotatably supported in the frame structure about a rotational axis. The furniture base (10) further comprises a plurality of wheel units (76, 77, 78, 79) that are movably attached to the frame structure (12) between an upper position and lower position relative to the frame structure (12). The wheel units (76, 77, 78, 79) are connected to the actuator device (33) for movement of the wheel unit (76, 77, 78, 79) between the upper and lower position. The furniture base (10) further comprises a locking mechanism (46) for locking of the wheel units (76, 77, 78, 79) in the lower position of the wheel units (76, 77, 78, 79). The locking mechanism (46) comprises a guide pin (47) that projects out from the actuator device (33) and is attached to the actuator device (33) swingably relative to the actuator device (33). The furniture base (10) further comprises a guide device (53) that guides the movement of the guide pin (47) when the actuator device (33) is rotated for movement of the wheel units (76, 77, 78, 79) between the upper and lower positions of the wheel units (76, 77, 78, 79).