Hose coupling

Claim 2

A quick locking and releasing coupling for a pair of members to be coupled together comprising resilient coupling means projecting from each of the members to be coupled and snaplocking with the other member to be coupled and a raised cam engageable with the resilient coupling means when the resilient coupling means are rotated relatively to each other to spread the resilient coupling means and disengage them from the members with which they were locked, the cam and resilient coupling means associated with each member to be coupled being integral parts of an element which includes a platelike portion made of resilient spring material and having an outer periphery which includes at least two opposite recessed cam edges, two opposite raised cam edges and a pair of oppositely disposed gripping fingers extending laterally from one side of said raised cam edges.

Claim 3

A quick locking and releasing coupling for a pair of members to be coupled together comprising resilient coupling means projecting from each of the members to be coupled and snap-locking with the other member to be coupled and a raised cam engageable with the resilient coupling means when the resilient coupling means are rotated relatively to each other to spread the resilient coupling means and disengage them from the members with which they were locked, the cam and resilient coupling means associated with each member being integRal parts of an element which includes an annular cam made of resilient material and having opposite cam edges recessed below a part of the outer periphery of the member with which it is associated, a pair of opposite raised cam edges which extend at least to the outer periphery of said member, and a pair of oppositely disposed grippers which extend laterally from the raised cam edges to receive between them the outer periphery of part of the said member and to interlock therewith at the recessed cam edges of the coupling associated with said other member, the relative rotation of the couplings bringing the gripping means of each coupling member into engagement with the raised cam edges of the opposite coupling member to spread apart the grippers and disengage them from the members with which they have been interlocked.

Claim 4

A quick locking and releasing coupling for a pair of members to be coupled together comprising resilient coupling means projecting from each of the members to be coupled and snap-locking with the other member to be coupled and a raised cam engageable with the resilient coupling means when the resilient coupling means are rotated relatively to each other to spread the resilient coupling means and disengage them from the members with which they were locked, the cam and resilient coupling means associated with each member being integRal parts of an element which includes an annular cam made of resilient material and having opposite cam edges recessed below a part of the outer periphery of the member with which it is associated, a pair of opposite raised cam edges which extend at least to the outer periphery of said member, and a pair of oppositely disposed grippers which extend laterally from the raised cam edges to receive between them the outer periphery of part of the said member and to interlock therewith at the recessed cam edges of the coupling associated with said other member, the relative rotation of the couplings bringing the gripping means of each coupling member into engagement with the raised cam edges of the opposite coupling member to spread apart the grippers and disengage them from the members with which they have been interlocked.

Claim 5

A quick locking and releasing coupling for a pair of members to be coupled together comprising resilient coupling means projecting from each of the members to be coupled and snap-locking with the other member to be coupled and a raised cam engageable with the resilient coupling means when the resilient coupling means are rotated relatively to each other to spread the resilient coupling means and disengage them from the members with which they were locked, the cam including a pair of opposite cam edges recessed below the outer periphery of the member with which it is associated and a pair of opposite raised cam edges extending at least to the outer periphery of said member and the resilient coupling means including a pair of oppositely disposed locking fingers which extend laterally from one member to be coupled to interlock with the other member to be coupled at said recessed cam edges, the relative rotation of the cam associated with one member and the locking fingers associated with the other member bringing the locking fingers into engagement with the raised cam edges to spread apart the fingers to release the member thereby engaged, the said cam and pair of oppositely disposed locking fingers associated with each of the members to be coupled consist of a one piece resilient spring member.

Claim 6

A quick locking and releasing coupling for a pair of members to be coupled together comprising resilient coupling means projecting from each of the members to be coupled and snap-locking with the other member to be coupled and a raised cam engageable with the resilient coupling means when the resilient coupling means are rotated relatively to each other to spread the resilient coupling means and disengage them from the members with which they were locked, the cam including a pair of opposite cam edges recessed below the outer periphery of the member with which it is associated and a pair of opposite raised cam edges extending at least to the outer periphery of said member and the resilient coupling means including a pair of oppositely disposed locking fingers which extend laterally from one member to be coupled to interlock with the other member to be coupled at said recessed cam edges, the relative rotation of the cam associated with one member and the locking fingers associated with the other member bringing the locking fingers into engagement with the raised cam edges to spread apart the fingers to release the member thereby engaged, the said cam and pair of oppositely disposed locking fingers associated with each of the members to be coupled consist of a one piece resilient spring member.