Importance

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Abstract

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.

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First Claim