Centre-lock wheel removal tool
AssigneeGordon Murray Automotive Limited
InventorMathew Drake
Life of this patent
Estimating the term…
Abstract
Method and tool (46, 50) for removal of the locking element (42) from a centre-lock wheel hub with a wheel nut threadingly engaged with the wheel hub, where the locking element engages with the wheel hub (24) and with the wheel nut (26) thereby to prevent relative rotation of the wheel hub and the wheel nut. Removal is made easier by fitting an extraction apparatus (50) having a first end with an externally threaded section, threadingly engaged with a corresponding internal thread (56) of the locking element, a second end provided with an engagement element for imparting rotational torque to the extraction apparatus, and a bearing surface (60, 62), located radially outside the externally threaded section and axially displaced from the externally threaded section, contacting the wheel nut.
Claims17
An assembly comprising:
- a centre-lock wheel hub,
- a wheel nut threadingly engaged with the wheel hub,
- a locking element engaging with the wheel hub and with the wheel nut thereby to prevent relative rotation of the wheel hub and the wheel nut,
- an extraction apparatus having;
- a first end with an externally threaded section, threadingly engaged with a corresponding internal thread of the locking element;
- a second end provided with an engagement element for imparting rotational torque to the extraction apparatus;
- a bearing surface, located radially outside the externally threaded section and axially displaced from the externally threaded section, contacting the wheel nut.
An extraction apparatus for a locking element of a centre-lock wheel hub assembly, having;
- a first end with an externally threaded section, for engagement with a corresponding internal thread of the locking element;
- a second end provided with an engagement element for imparting rotational torque to the apparatus;
- a bearing surface for contacting the wheel nut, located radially outside the externally threaded section and axially displaced from the externally threaded section.
A method of removing a wheel from a centre-lock wheel hub assembly,
- the hub assembly comprising a wheel nut threadingly engaged with the wheel hub and a locking element engaging with the wheel hub and with the wheel nut thereby to
- prevent relative rotation of the wheel hub and the wheel nut,
- the method comprising the steps of:
- providing an extraction tool that is threadingly engagable with the locking element,
- providing a spacer tool having a bearing face for contacting the wheel nut and a bearing face for contacting the extraction tool thereby to maintain a minimum axial distance between them,
- threadingly engaging the extraction tool with the locking element with the spacer tool positioned between the wheel nut and the extraction tool,
- rotating the extraction tool thereby to continue threading engagement with the locking element and hence relative axial translation of the locking element and the extraction tool.
Dependencies are inferred from the claim text.