Castors braked either in response to a load or to the absence of a load
AssigneeGuy-Raymond Engineering Company Limited
InventorRaymond R. J. Daniels
Life of this patent
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Abstract
A castor comprises a castor body (12), a castor wheel (14), and a bearing block (20) for supporting the castor wheel relative to the castor body. The bearing block is selectively mountable in each of a first and a second orientation relative to the castor body. In the first orientation of the bearing block relative to the castor body, the castor wheel is arranged to be braked in response to the application of a load applied to the castor. In the second orientation of the bearing block relative to the castor body, the castor wheel is arranged to be braked in the absence of a load applied to the castor.
Claims12
A castor having a castor body, a castor wheel mounted on the body, and braking means by which the castor wheel can be selectively braked without manual actuation of said braking means either in response to the application of a load applied to the castor or in response to the absence of such a load.
A castor having a castor body and a castor wheel arranged to co-operate when the parts of the castor are assembled in a first relative orientation, such that the castor wheel is resiliently biased away from a first braking surface portion of the castor body and is engageable with the first braking surface portion in response to a load applied to the castor and, when the parts of the castor are assembled in a second relative orientation, such that the castor wheel is resiliently biased against a second braking surface portion of the castor body and is releasable from the second braking surface portion in response to a load applied to the castor.
Dependencies are inferred from the claim text.