Abstract: Roller (1), particularly a castor-type roller, with rotational movement of a running wheel (12), with an operating shaft (20) which passes through a control cam (19) of the roller (1) and on which an electric motor (37) acts via a gear mechanism to operate it, wherein the electric motor (37) acts on the operating shaft (20) by means of an electric motor shaft (39) via a toothed gear mechanism (38), the toothed gear mechanism (38) having a driven gear wheel (41), a hub (40) of which is passed through by the operating shaft (20).

Abstract: A castor (1) has a securing device (V) for blocking running action and/or steering action of a wheel (2) mounted in a fork (3). A mounting of the fork (3) permits pivoting about a vertical axis (y—y). A push rod (11) operates an integrally formed combination part (K) located at the fork for providing functions of braking-blocking and/or steering blocking formation. The push rod (11) carries a plate (23) configured for interacting with fork-mounted steering-blocking and braking-blocking parts of the combination part (K), which has steering-blocking mating protrusions (25) and braking-blocking means (26), these being located in spaced-apart planes (E′—E′, E″—E″).

Abstract: A caster, in particular for movable hospital beds, laboratory tables and the like, with a securing device which is connected to a handle via a Bowden cable. A locking piece (16) is movable between a locking and an unlocking position by Bowden cable (12), that, in the locking position, the locking piece (16), being located between pairs of stop faces (21, 22; 19, 19′, 20, 20′) which are fixed relative to a rotary part (6) and are fixed on the rotary part and which are designed in relation to an axis of rotation (2), blocks rotational movement about the axis of rotation (2), and that, in the unlocking position, the locking piece (16) releases at least identically fixed pairs of the stop faces (21, 22) for rotational movement of the rotary part (6).

Abstract: The invention relates to a roller, especially a deflection roller (R), with a fork (2) bearing the tyred running wheel (1) and a braking device (25), at least for the rotary movement of the wheel (1), which has a push-rod (10) which can be moved towards the wheel (1) via an actuating device (1), a braking component (26) pressing into the tire (29) and a power storage spring (F) between the actuating device (11) and the braking device (11), and, in order to provide an easily used, tire saving braking device, proposes that the characteristic/prestress on the power storage spring (F) be designed in relation to the pressure resistance of the tire (29) in such a way that, in the braking position of the actuating device (11), in relation to the braking component (26), a determined depth of penetration into the tire (29) stopping the rotation of the wheel (1) is maintained and not exceeded.

Abstract: A twin caster, in particular a steering caster, having a carrier (3), wheels, and a vertical mounting pin (22), the wheels being held via an axle (6) on the carrier (3) and the carrier (3) supporting the mounting pin (22), a brake element (32) being furthermore arranged on the carrier (3). For simplified construction, easier assembly, and a development which takes up high brake forces without damage, the carrier (3) is developed in disk shape and have an opening (39) for lateral insertion in the form of a plug/back-grip connection for the brake element which is developed as brake ram (32).

Abstract: A caster device with blocking of rotation of the caster wheel and of swiveling movement of a caster-wheel fork by displacement of a spindle which is disposed concentric to the swivel axis of the caster-wheel fork, the spindle being displaceable along the axis and passing through a head plate of the fork, there being a mounting plate disposed above the head plate; and wherein the lower end of the spindle, upon initial displacement to a first position blocks a swiveling motion of the caster-wheel fork by tooth engagement therewith and, after a second displacement to a second position, blocks rotation of the caster wheel by means of a breaking action on an impact surface. A device activated by the spindle blocks the swiveling motion of the fork and a device activated by the spindle blocks rotation of the caster wheel. Each of the blocking a device is bringable into engagement separately from each other to a depth of engagement which is individually adjustable.