JP2009144740A5 - - Google Patents

Claims (6)

A joint provided with an adapter to which a resin pipe made of polyolefin resin is connected at one end and a different pipe different from the resin pipe is connected to the other end,
A joint body having an insertion hole into which the resin pipe is inserted at one end and an adapter insertion hole into which the inner end portion of the adapter is inserted at the other end, a first cap coupled to one end of the joint body, and a joint A retaining member that is sandwiched between one end of the main body and the first cap and prevents the resin pipe from falling off, a first seal ring that is provided on the inner peripheral portion of the joint body and that stops water between the resin pipe, A second cap connected to the other end, a second seal ring that is provided on the inner peripheral portion of the joint body and stops water between the adapter, an inner end portion is inserted into the adapter insertion hole, and a different type is formed at the outer end portion An adapter to which the pipe is connected, and the engaging portion provided on the outer peripheral portion of the adapter is configured to engage with the locking portion provided on the inner peripheral portion of the second cap to prevent the adapter from coming off. Adapts characterized by Joint with over. The second cap is configured to be elastically deformable, and the engaging portion of the adapter is formed to protrude from the outer peripheral portion of the adapter, and the inner end portion of the adapter is inserted into the adapter insertion hole of the joint body so that the second cap is elastic. The joint provided with the adapter according to claim 1, wherein the adapter is configured to be engaged with the engaging portion of the second cap by deformation to prevent the adapter from coming off. The engaging portion of the adapter protrudes from the outer peripheral portion of the adapter, and the second cap is inserted in the state where the outer end portion of the adapter is inserted from the proximal end side of the second cap and engaged with the engaging portion of the second cap. The joint comprising the adapter according to claim 1, wherein the joint is configured to be coupled to the joint body. The adapter according to claim 2 or 3, wherein a holding ring that holds the connection of the second cap to the joint body is attached to the outer periphery of the base end portion of the second cap. Fittings. The adapter according to any one of claims 2 to 4, wherein the outer end portion of the adapter is configured such that a different kind of pipe is connected to an inner periphery or an outer periphery thereof. Fittings. The locking portion of the second cap is formed by bending the tip of the second cap at a right angle toward the inner peripheral side, and the engaging portion of the adapter is engaged with the locking portion on the outer peripheral surface of the adapter. 4. The structure according to claim 3, wherein the second seal ring is disposed between the engagement portion and the joint body. 5. A joint comprising the adapter according to any one of 5 above.