Tube joint
First Claim
Patent Images
1. A tube joint comprising a socket and a plug which are detachably connectable by the aid of balls by operating a sleeve, said tube joint further comprising:
- a lock mechanism which prevents said socket and said plug from any disengagement by regulating displacement of said sleeve in an axial direction; and
a retaining mechanism which retains a locked state by preventing said sleeve from any rotation in a circumferential direction which would be otherwise caused by any unexpected external force,wherein said retaining mechanism includes a ratchet which is provided to surround an outer circumferential surface of a socket body and which is rotatable synchronously with said sleeve, and a coil spring which is interposed between said sleeve and said ratchet for urging said sleeve in a direction away from said ratchet under action of a spring force.
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Abstract
A tube joint comprises a retaining mechanism which retains the locked state by preventing a sleeve from any rotation in the circumferential direction which would be otherwise caused by any unexpected external force. The retaining mechanism includes a ratchet which is provided to surround the outer circumferential surface of a socket body and which is rotatable synchronously with the sleeve, and a coil spring which is interposed between the sleeve and the ratchet and which makes an urging action to cause mutual separation under an action of the spring force.
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Citations
9 Claims
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1. A tube joint comprising a socket and a plug which are detachably connectable by the aid of balls by operating a sleeve, said tube joint further comprising:
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a lock mechanism which prevents said socket and said plug from any disengagement by regulating displacement of said sleeve in an axial direction; and a retaining mechanism which retains a locked state by preventing said sleeve from any rotation in a circumferential direction which would be otherwise caused by any unexpected external force, wherein said retaining mechanism includes a ratchet which is provided to surround an outer circumferential surface of a socket body and which is rotatable synchronously with said sleeve, and a coil spring which is interposed between said sleeve and said ratchet for urging said sleeve in a direction away from said ratchet under action of a spring force. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A tube joint comprising a socket and a plug which are detachably connectable by the aid of balls by operating a sleeve, said tube joint further comprising:
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a lock mechanism which prevents said socket and said plug from any disengagement by regulating displacement of said sleeve in an axial direction; and a retaining mechanism which retains a locked state by preventing said sleeve from any rotation in a circumferential direction which would be otherwise caused by any unexpected external force, wherein said retaining mechanism includes a single pin which is secured to a socket body, and a groove having a substantially L-shaped cross section which is formed in said sleeve to make engagement with said pin, so that a position of said pin in said groove can be observed and visually confirmed externally of said tube joint.
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Specification