The present invention relates to a cart caster that is installed on each of the edges of a bottom surface of a manned and unmanned cart to carry a product through a rolling motion, and more particularly, to a cart caster that is automatically converted into a fixed or rotating caster according to a forward/backward traveling direction of a cart to ensure safe travel and thereby easily carry a product and improve work conditions. According to the present invention, since the cart caster is automatically converted into a fixed or rotating caster by an operation of a swiveling conversion unit including an auxiliary wheel that is closely contacted to a wheel according to the forward/backward movement of the cart so as to rotate in only one direction and a fixing pin inserted into a coupling hole of a fixing plate, safe travel may be ensured in order to easily carry a product and improve work conditions.

A caster includes a running wheel, a fork and an assembly journal, wherein the fork is pivotable in relation to the assembly journal and a braking device is arranged in the fork and can be displaced into the braking position via a tappet actuated by a trip cam. A direction lock can be set without a braking action on the running wheel. Two tappets are movable independently of each other, wherein only the direction lock without a braking action can be set via one of the tappets. Another caster includes a running wheel, a fork and an assembly journal, wherein a braking device is provided in the fork and can be displaced into the braking position via a trip cam. The braking device has a first braking part for friction-locking action on the running wheel and a second braking part for the interlocking lock of the running wheel.

A caster capable of removing a foreign substance includes a flange mounted to a carrier or a plate on which cargo is loaded so as to be spaced apart from a lower surface of the carrier or the plate, the flange having a plurality of coupling holes formed therein, a rotator rotatably mounted to a lower surface of the flange, lower support members mounted respectively to opposite sides of the rotator, each lower support member having a rotating shaft coupling hole formed in a lower portion thereof, a wheel located between the lower support members and supported by a rotating shaft, which penetrates the rotating shaft coupling hole, and a foreign substance removal device fixed to and supported by the rotating shaft, the foreign substance removal device serving to remove and collect the foreign substance attached to a surface of the wheel that is being rotated.

A caster apparatus is provided. In one embodiment, there is provided a caster apparatus including a caster wheel and a first driving wheel disposed on a first side of the caster wheel. The first driving wheel is configured to be driven by a first motor. A second driving wheel is disposed on a second side opposite to the first side of the caster wheel. The second driving wheel is configured to be driven by a second motor different from the first motor. A first actuator is configured to move the first driving wheel in a vertical direction to a ground according to a curvature of the ground. A second actuator is configured to move the second driving wheel in a vertical direction to the ground according to a curvature of the ground, wherein the first and second driving wheels are configured to steer the caster wheel.

A caster assembly for a wheelchair comprises a stem having a frame clamp at a first end and a fork clamp at a second end, the frame clamp configured to form a frame joint with at least one rotational degree of freedom with a frame portion of the wheelchair, a tightening of the frame clamp securing the stem to the frame portion, the frame joint having a frame rotational axis. A fork unit has a fork portion and a caster rotatably supported by the fork portion, the fork unit having swivel mechanism, and a joint portion forming a rotational joint with the fork clamp of the stem, a tightening of the fork clamp blocking rotation of the rotational joint, the rotational joint having a fork rotational axis. A vector of the fork rotational axis is normal to a fork rotational plane in which the fork rotates relative to the stem, and further wherein the frame rotational axis is not parallel to the fork rotational plane.

A wheel assembly includes: a wheel set unit including a wheel bracket and a wheel; and a brake unit including a brake element disposed between the wheel bracket and the wheel, a threaded member sleeved movably on the brake element, and a screw extending threadably through the threaded member, extending through the brake element so as to prevent movement of the threaded member on the brake element, and pushable downwardly such that the brake unit moves downwardly to press resiliently against the wheel, so as to arrest rotation of the wheel. Only a single tool is needed to be accessed to a lower end of the screw so as to adjust a distance between the brake unit and the wheel.

The present invention relates to a castor wheel structure, comprising a wheel part (18) and a castor wheel house (28), on which a transition element can be mounted, such as a spindle structure (1) or a flange structure (2), which again can be mounted on equipment that is to be made mobile, which wheel part (18) is unilaterally suspended and arranged about a substantially horizontal shaft on the castor wheel house (28).

The caster wheel support assembly has a first section securable to a frame member of a wheelchair and a second section holding a swivel member coupled to a caster wheel. The caster wheel support assembly has a holding member designed as a collet configured to hold a first portion of the swivel member which extends along a first axis. A second portion of the swivel member, which is coupled to the caster wheel, extends away from the first portion along a second axis which forms an angle relative to the first axis. The first portion of the swivel member is supported by the holding member to selectively allow rotation thereof relative to the holding member about the first axis, causing adjustment of a camber of the caster wheel. The collet is configured to selectively prevent or permit rotation of the swivel member relative to the holding member.

Wheels, tires, wheel coverings, foot coverings and method for forming a wheel and/or foot covering that is defined by a body that is shaped to extend along the floor contacting surface under the wheel and/or sole of a foot of a wearer and includes an antimicrobial agent that is incorporated into the body and inseparable therefrom. The antimicrobial agent is selected and supported by the body of the wheel, wheel assembly, wheel covering, and/or foot covering to render microbial matter contacted by the body nonviable.

A conductive caster wheel is adapted to be mounted on a cart The conductive caster wheel includes a caster hub adapted to be sleeved on a bearing of the cart, a wheel body sleeved on the caster hub, and a conductive plate disposed inside the caster hub and the wheel body. The conductive plate has an inner conductive section. and an outer conductive section. The inner conductive section is exposed from an inner surrounding surface of the caster hub, and is adapted to be electrically connected. to the bearing. The outer conductive section is electrically connected to the inner conductive section, is exposed from an outer surrounding surface of the wheel body, and is adapted to be in contact with a ground surface.