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.

The present disclosure relates to a caster, having a housing, having an axle pin which is arranged in a housing opening which is oriented substantially horizontally, and on which at least one wheel is mounted, having, at the top, a pin opening oriented substantially vertically, for receiving a pivot pin, and having a braking device which brakes the at least one wheel, wherein the housing opening for the axle pin allows limited vertical displaceability of the axle pin and the braking device comprises at least one resilient housing part which acts on the axle pin. In order to provide a mechanically reliable braking device, the braking device is additionally provided with at least one spring element which cooperates with the at least one resilient housing part and amplifies the effect of its braking force and/or increases the mechanical load-bearing capacity of the at least one resilient housing part.

A high load pivoting caster with integral jack preferably includes a wheel mounting base, a pair of wheels, a high load jack, a slewing ring, an wheel axle and an attachment cube. The wheel mounting base includes a base plate, and first and second pairs of wheel support plates. The first wheel is retained between the first pair of wheel support plates. The second wheel is retained between the second pair of wheel support plates. The wheel axle is inserted through the pair of wheels and the first and second pair of wheel support plates. The slewing ring preferably includes a stator ring, a rotor ring, an indexing plate and a set of rotary bearings. An opening is formed through the indexing plate to receive an outer perimeter of the high load jack. The attachment cube is preferably attached to a top of the indexing plate with welding.

Luggage with retractable wheels is described, specifically pivoting caster wheels. A telescopic handle is provided on the luggage bag which actuates the retractable wheels using a unique linear mechanism. Pushing the telescopic handle down to the stowed position allows the wheels to retract inside the bag, making the bag easier to stow in the restricted storage space available in the passenger cabin of a commercial aircraft Pulling the telescopic handle out into an extended configuration allows the wheels to deploy into an operable position.

The invention provides a caster including two wheels, a central frame member, and a mount member. The two wheels are mounted on the mount member. The caster has a hybrid bearing arrangement comprising both a rolling bearing and two slide bearings. The rolling bearing is located between the central frame member and the mount member and is configured to enable the caster to roll along a straight line with each of the two wheels rotating in a common direction about a first axis. Each of the two slide bearings is located between the mount member and a tread portion of a respective one of the two wheels. The slide bearings are configured to enable the two wheels to simultaneously rotate in opposite directions when the caster swivels about a second axis orthogonal to the first axis. In some embodiments, the caster is a hubless caster.

A new and improved anatomical imaging system which includes a new and improved movement system, wherein the movement system comprises an omnidirectional powered drive unit and wherein the movement system can substantially eliminate lateral walk (or drift) over the complete stroke of a scan, even when the floor includes substantial irregularities, whereby to improve the accuracy of the scan results and avoid unintentional engagement of the anatomical imaging system with the bed or gurney which is supporting the patient. The present invention also comprises the provision and use of Liddiard wheels.

A payload platform includes a platform and a castor assembly coupled to the platform. The castor assembly includes a body, a first wheel coupled to the body, and a second wheel coupled to the body. The first wheel and the second wheel are individually actuatable. A sensor is coupled to the body. A control unit is operably coupled to the sensor and operably coupled to the first wheel and to the second wheel. The sensor detects an area surrounding the platform, determines presence of obstacles, and transmits a signal to the control unit corresponding to the area surrounding the platform. The control unit directs the first wheel and the second wheel to rotate in a prescribed manner so as to achieve a prescribed movement of the platform.

A galley cart compartment is disclosed. In embodiments, the galley cart compartment includes an interior compartment or space having left and right sidewalls and a cabin floor. The interior compartment can receive and securely store a galley cart (e.g., trolley) insertable into, and removable from, the interior compartment along an axis of entry (e.g., parallel to the depth of the interior compartment). The galley cart has left and right sides and an underside to which casters are pivotably or rotatably attached, each caster has left and right wheels separated by a wheel gap. Tracks extend along the cabin floor parallel to the axis of entry, a left and right track positioned to engage respectively with the left-side and right-side casters. Each track includes a guide rail that projects into the wheel gap, preventing the caster wheels from rotating when the galley cart is removed from the interior compartment.

The invention provides a caster comprising a bracket, a first transmission device and two wheels. The two wheels are connected by a transmission screw and are fixed to the bracket. The first transmission device comprises an annular retaining portion and a plurality of first balls, the plurality of first balls are equiangularly arranged in a circumferential direction of the annular retaining portion, and opposite sides of the annular retaining portion are respectively embedded in the respective wheels. The caster of the invention can solve the problems in the prior art that it is difficult to control the gap between the two wheels, the resistance generated between the two wheels is large and noise is easily generated.

A caster device includes a support unit, two caster wheels, a resilient member, two friction wheels, and two protruding teeth units. Each of the caster wheels has an inner wheel surface and a plurality of meshing teeth that are angularly arranged and that are formed on the inner wheel surface. Each of the protruding teeth units includes a plurality of protruding teeth. The support unit is downwardly movable against a resilient force of the resilient member to a stop position, where each of the friction wheels is in frictional contact with the meshing teeth of a respective one of the caster wheels, and where the protruding teeth of each of the protruding teeth units are meshed with the meshing teeth of the respective one of the caster wheels.