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.

[Problem]

Related to a caster structure in which a sign groove for indicating a tire replacement timing of a caster including a wheel braked by a brake shoe is provided.

[Solution]

A caster structure in which a mark groove is provided in a tire of a wheel of a caster in which rotation of the wheel is braked by pressing a brake shoe onto the tire, characterized in that the mark groove in which a groove bottom portion is set to a predetermined depth is provided in an outer peripheral surface of the tire annularly along an outer periphery of the tire, and projecting portions for alarm each having an upper surface connecting right and left side walls forming the groove and closing the groove are provided in plural at predetermined intervals along an extending direction of the mark groove at a middle position of the depth between the groove bottom portion and a groove opening portion in the mark groove.

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.

The invention provides an operating control 28, comprising: a braking body 26 which is adjustable between a braking position, in which the braking body 26 is brought into frictional contact with a braking surface U, and a release position, in which the braking body 26 is pulled back from the braking surface U, a load input portion 22, which is set up to receive a loading force from a user, and a load trigger mechanism 42, 46 which converts a loading force acting on the load input portion 22 into an adjustment movement of the braking body 26 from the release position into the braking position.

A caster device for a pipe leg includes a caster unit, a mounting unit, and a braking unit. The caster unit includes a wheel seat subunit, a caster subunit that is rotatably connected to a bottom end of the wheel seat subunit, and a protection subunit that is located between the wheel seat subunit and the caster subunit. The mounting unit is mounted to the wheel seat subunit and is adapted to be mounted to the pipe leg. The braking unit extends through the protection subunit and the wheel seat subunit into the mounting unit, and is movable in an up-down direction between a braking position, in which the braking unit projects out of the protection subunit and is in contact with the caster subunit so that the caster subunit is refrained from rotating, and an initial position, in which the braking unit is spaced apart from the caster subunit.

A caster device for a pipe leg includes a caster unit, a mounting unit, and a braking unit. The caster unit includes a wheel seat subunit, a caster subunit that is rotatably connected to a bottom end of the wheel seat subunit, and a protection subunit that is located between the wheel seat subunit and the caster subunit. The mounting unit is mounted to the wheel seat subunit and is adapted to be mounted to the pipe leg. The braking unit extends through the protection subunit and the wheel seat subunit into the mounting unit, and is movable in an up-down direction between a braking position, in which the braking unit projects out of the protection subunit and is in contact with the caster subunit so that the caster subunit is refrained from rotating, and an initial position, in which the braking unit is spaced apart from the caster subunit.

The invention provides an operating control 28, comprising: a braking body 26 which is adjustable between a braking position, in which the braking body 26 is brought into frictional contact with a braking surface U, and a release position, in which the braking body 26 is pulled back from the braking surface U, a load input portion 22, which is set up to receive a loading force from a user, and a load trigger mechanism 42, 46 which converts a loading force acting on the load input portion 22 into an adjustment movement of the braking body 26 from the release position into the braking position.