COUPLINGS
First Claim
1. A coupling for joining two units, the coupling including a first part and a second part attached respectively to the units to be joined, each part having a bore arranged to provide a path from one unit to the other unit, the first part and the second part being retained in coupled relationship by detents held captive within the second part and urged, in the coupled position, radially inwards into at least one recess on the external surface of the first part by a sleeve carried by and capable of movement on the second part, wherein the sleeve is arranged for movement on the second part against a first, compression, spring for automatic uncoupling on axial overload and against a second, torsion, spring for manual uncoupling.
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Accused Products
Abstract
A coupling which will automatically disconnect when subjected to an axial load of more than a predetermined amount. The coupling may be connected or disconnected manually by either a turning or a sliding movement of an external sleeve, this manual operation being separate from the automatic disconnection.
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Citations
2 Claims
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1. A coupling for joining two units, the coupling including a first part and a second part attached respectively to the units to be joined, each part having a bore arranged to provide a path from one unit to the other unit, the first part and the second part being retained in coupled relationship by detents held captive within the second part and urged, in the coupled position, radially inwards into at least one recess on the external surface of the first part by a sleeve carried by and capable of movement on the second part, wherein the sleeve is arranged for movement on the second part against a first, compression, spring for automatic uncoupling on axial overload and against a second, torsion, spring for manual uncoupling.
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2. A coupling as claimed in claim 1 wherein a first mode of movement is axial against said first, compression, spring, and a second mode of movement is rotational against said second, torsion, spring.
Specification