Surface finish stylus
AssigneeRenishaw PLC
InventorsStephen Edward Lummes, Mark James Andrew Holmes
Life of this patent
Estimating the term…
Abstract
A surface finish stylus is described that includes an elongate stylus shaft and a contact element protruding from the elongate shaft for contacting a surface to be measured. The contact element is deformable and the stylus shaft includes a clamp for retaining the contact element, the contact element being deformed by the clamp. The contact element may comprise a metal, such as chromium steel or nitinol. The contact element includes one or more regions of weakness to cause a required deformation when retained by the clamp. The surface finish stylus may be used with a surface finish measurement probe or the like.
Claims14
A surface finish stylus, comprising;
- an elongate stylus shaft, and
- a contact element protruding from the elongate shaft for contacting a surface to be measured, the contact element being located at an end of the elongate shaft where the surface is to be measured,
- wherein the contact element is deformable and the stylus shaft comprises a clamp for retaining the contact element, the contact element being deformed by the clamp.
A method for forming a surface finish stylus that comprises an elongate stylus shaft and a contact element protruding from the elongate shaft for contacting a surface to be measured, the contact element being located at an end of the elongate shaft where the surface is to be measured, the method being characterised by a step of clamping the contact element to the elongate shaft, the clamping step deforming the contact element.
Dependencies are inferred from the claim text.