Piping connector
AssigneePiolax, Inc.
InventorNaoki Yoshida
Life of this patent
Estimating the term…
Abstract
A socket is attached to an end of one pipe and a plug is attached to an end of another pipe. The socket is provided with a pair of notched grooves at peripheral faces on both sides opposed to each other and a stopper constituting a U-shape is mounted onto the notched groove. The plug is provided with a first taper portion, a flat portion, and a second taper portion continuously from a front end side thereof in a sectional shape thereof along an axial direction, and a groove having the stopper inserted therein is formed at a ridge portion of the second taper portion. An inner periphery of the socket is arranged with a seal ring for sealing an interval between the inner periphery of the socket and an outer periphery of the plug in an airtight connection.
Claims19
A piping connector comprising:
- a socket in a tubular shape for attaching to an end of one pipe;
- and
- a plug in a tubular shape for attaching to an end of an other pipe, wherein,
- the socket comprises a pair of notched grooves at opposite peripheral sides, the notched grooves are mounted with a stopper comprising a U-shape,
- the plug comprises a first taper portion, a flat portion and a second taper portion extending respectively from a front end side and along an axial direction of the plug, and a groove for fitting the stopper being formed at a ridge portion of the second taper portion, and
- an inner periphery of the socket is arranged with a seal ring for sealing between the inner periphery of the socket and an outer periphery of the plug in an airtight connection,
- wherein a first distance in the axial direction of the plug between a plug contacting portion of the stopper and a plug contacting portion of the seal ring, is equal to or less than a second distance in the axial direction of the plug between an initial stopper contacting portion of the plug and an initial seal ring contacting portion on a radius portion on the plug between the flat portion and the first taper portion.
A method of connecting a piping connector, said piping connector comprising a socket containing a seal ring fixably attached to an inner periphery of said socket, a stopper, and a plug comprising a first tapered portion, a radius portion, a flat portion, a second tapered portion and a notch portion for engaging said stopper, all of said plug portions extending respectively from a front end of said plug, the method of connecting comprising:
- inserting said plug into said stopper;
- engaging said first tapered portion of said plug with said seal ring attached to said socket;
- and
- sliding said plug into said stopper such that after said seal ring reaches the radius portion of said plug, the stopper initially makes engaging contact with the plug.
Dependencies are inferred from the claim text.