초록 ▼

A lockable caster wheel, in particular for movable hospital beds, has a fastening pin (1) and a swivel arm (8) which is positioned in a swivel bearing (7) with respect to said fastening pin. A wheel carrier (10), which bears at least one wheel (13), can swivel at the swivel arm (8) and is braced in

A lockable caster wheel, in particular for movable hospital beds, has a fastening pin (1) and a swivel arm (8) which is positioned in a swivel bearing (7) with respect to said fastening pin. A wheel carrier (10), which bears at least one wheel (13), can swivel at the swivel arm (8) and is braced in a flexible manner via a wheel spring (20) against said swivel arm. A locking bolt (21), which is arranged coaxially to the fastening pin (1) and can be moved in the axial direction relative to said pin against the action of a lift spring (25) bears a brake lever (33), which blocks the wheel (13), and a mechanism for locking the swivel motion of the swivel arm (8), which encloses a locking disk (38a). The flexible axle (11) of the wheel carrier (10) runs parallel to the axis of rotation of the wheel (13) and intersects the longitudinal axis of the locking bolt (21). The brake lever (33) can be tilted in the wheel carrier (10) parallel to the flexible axle (11). The vertical position of the contact point between the bottom end of the locking bolt (21) and the brake lever (33) is independent of whether the wheel carrier (10) is in the spring loaded or non spring loaded state. This enables both the blocking of the wheel (13) and the locking of the swivel motion of the swivel arm by means of an eccentric disk (27), which moves the locking bolt (21) axially.

대표청구항 ▼

Lockable caster wheel, in particular for movable hospital beds, with a fastening pin (1, 50); a swivel arm (8, 52) adapted to be swivelled around the fastening pin (1, 50) in a swivel bearing (7, 53); a mechanism for fixing the swivelling motion of the swivel arm (8, 52); at least one rotatable whee

Lockable caster wheel, in particular for movable hospital beds, with a fastening pin (1, 50); a swivel arm (8, 52) adapted to be swivelled around the fastening pin (1, 50) in a swivel bearing (7, 53); a mechanism for fixing the swivelling motion of the swivel arm (8, 52); at least one rotatable wheel (13, 13′; 57), a tiltable brake lever (33, 63) to block the rotation of the wheel (13, 13′; 57); and a locking bolt (21, 68) arranged coaxially to the fastening pin (1, 50) and movable relative to said pin in the axial direction against the action of a lift spring (25, 72) for lockins the swivel arm (8, 52) as a function of its axial position and blocking rotation of the wheel (13, 13′; 57) by means of engagement with the brake lever (33, 63); wherein: a wheel carrier (10, 54), which carries the wheel (13, 13′; 57) is pivoted on the swivel arm (8, 52), a flexible axle (11, 55) of the wheel carrier (10, 54) extends essentially parallel to the axis of rotation of the wheel (13, 13′; 57) and intersects the longitudinal axis of the locking bolt (21, 68); the brake lever (33, 68) is mounted in the wheel carrier (10, 54); an axis of tilt (34) of the brake lever (33, 63) is parallel to the flexible axle (11, 55) of the wheel carrier (10, 54); and the wheel carrier (10, 54) is resiliently biased relative to the swivel arm (8, 52) by means of a wheel spring (20, 61).