Caster with securing device
AssigneeTente-Rollen GmbH & Co.
InventorsUwe Stickel, Siegfried Engels
Life of this patent
Estimating the term…
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).
Claims15
A caster, with a securing device which is connected to a handle via a Bowden cable, wherein a locking piece (16) is movable between a locking position and an unlocking position by means of the Bowden cable (12), wherein, in the locking position, the locking piece (16) being located between pairs of stop faces (21, 22;
- 19, 19′, 20, 20′), said stop faces being fixed relative to a rotary part (6) and being fixed on the rotary part with respect to an axis of rotation (2), respectively, said locking piece (16) blocks rotational movement about the axis of rotation (2), and wherein, in the unlocking position, the locking piece (16) releases at least alike fixed pairs of said stop faces (21, 22) for rotational movement of the rotary part (6), wherein the Bowden cable (12) passes through a first said locking piece (16) and has a second locking piece (17), the first locking piece (16) being for locking rotational movement of the caster (1) about a vertical axis (2) and the second locking piece (17) being for locking rotational movement of a caster wheel (4) about a horizontal axis of rotation (9).
A caster, with a securing device which is connected to a handle via a Bowden cable, wherein a locking piece (16) is movable between a locking position and an unlocking position by means of the Bowden cable (12), wherein, in the locking position, the locking piece (16) being located between pairs of stop faces (21, 22;
- 19, 19′, 20, 20′), said stop faces being fixed relative to a rotary part (6) and being fixed on the rotary part with respect to an axis of rotation (2), said locking piece (16) blocks rotational movement about the axis of rotation (2), and wherein, in the unlocking position, the locking piece (16) releases at least alike fixed pairs of said stop faces (21, 22) for rotational movement of the rotary part (6), wherein the locking piece (16) is axially displaceable on the axis of rotation (2).
A caster, with a securing device which is connected to a handle via a Bowden cable, wherein a locking piece (16) is movable between a locking position and an unlocking position by means of the Bowden cable (12), wherein, in the locking position, the locking piece (16) being located between pairs of stop faces (21, 22;
- 19, 19′, 20, 20′), said stop faces being fixed relative to a rotary part (6) and being fixed on the rotary part with respect to an axis of rotation (2), said locking piece (16) blocks rotational movement about the axis of rotation (2), and wherein, in the unlocking position, the locking piece (16) releases at least alike fixed pairs of said stop faces (21, 22) for rotational movement of the rotary part (6), wherein the stop faces (19, 19′, 20, 20′) are formed by side faces of an elongated hole (18).
A caster, with a securing device which is connected to a handle via a Bowden cable, wherein a locking piece (16) is movable between a locking position and an unlocking position by means of the Bowden cable (12), wherein, in the locking position, the locking piece (16) being located between pairs of stop faces (21, 22;
- 19, 19′, 20, 20′), said stop faces being fixed relative to a rotary part (6) and being fixed on the rotary part with respect to an axis of rotation (2), said locking piece (16) blocks rotational movement about the axis of rotation (2), and wherein, in the unlocking position, the locking piece (16) releases at least alike fixed pairs of said stop faces (21, 22) for rotational movement of the rotary part (6), wherein the stop faces (21, 22) are formed by flanks of teeth (23) of a toothed ring (24) arranged concentrically to the axis of rotation (2).
A caster, with a securing device which is connected to a handle via a Bowden cable, wherein a locking piece (16) is movable between a locking position and an unlocking position by means of the Bowden cable (12), wherein, in the locking position, the locking piece (16) being located between pairs of stop faces (21, 22;
- 19, 19′, 20, 20′), said stop faces being fixed relative to a rotary part (6) and being fixed on the rotary part with respect to an axis of rotation (2), said locking piece (16) blocks rotational movement about the axis of rotation (2), and wherein, in the unlocking position, the locking piece (16) releases at least alike fixed pairs of said stop faces (21, 22) for rotational movement of the rotary part (6), wherein a rocker (5) carrying a caster wheel (4) of the caster is mounted rotatably about a vertical axis (2) by an insertion part (6) in an essentially tubular strut (3), said insertion part (6) constituting said rotary part (6), wherein a barlike said locking piece (16) fixed to the Bowden cable (12) is axially displaceable in an elongated hole (18) passing through the insertion part (6) and projects radially from the insertion part (6), wherein an axially projecting toothed ring (24) is coaxial to the vertical axis (2), fixed on the strut, and wherein, in the locking position, portions (35, 36) of the locking piece (16) which project radially from the insertion part (6), being located between pairs of teeth (23, 23) of the toothed ring (24), block rotational movement about the vertical axis (2).
A caster, with a securing device which is connected to a handle via a Bowden cable, wherein a locking piece (16) is movable between a locking position and an unlocking position by means of the Bowden cable (12), wherein, in the locking position, the locking piece (16) being located between pairs of stop faces (21, 22;
- 19, 19′, 20, 20′), said stop faces being fixed relative to a rotary part (6) and being fixed on the rotary part with respect to an axis of rotation (2), said locking piece (16) blocks rotational movement about the axis of rotation (2), and wherein, in the unlocking position, the locking piece (16) releases at least alike fixed pairs of said stop faces (21, 22) for rotational movement of the rotary part (6), wherein there is a unilateral mounting of a caster wheel (4) on a fixed wheel shaft (8), through which the Bowden cable (12) passes terminating in a second locking piece (17), wherein a side (32) of the caster wheel (4) which faces away from a rocker of the caster has an axially projecting toothed ring (33) coaxially to an axis of rotation (9) of the caster wheel (4), and wherein, in the locking position, the second locking piece (17), being located between pairs of teeth (34, 34) fixed on the caster wheel and additional stop faces (30, 31) fixed on the wheel shaft, blocks rotational movement to the wheel (4).
Dependencies are inferred from the claim text.