Anti-rotation device and anti-rotation structure for a pipe and a connector

An anti-rotation device for a pipe and a connector to restrain relative rotational movement of a pipe and a connector, the connector having a connector housing provided with a connecting portion for a mating member to be joined with the pipe on one axial side thereof and a retainer holding portion holding a retainer on an opposite axial side, the pipe including an inserting side portion of straight tubular shape inserted in and connected to the connector housing through an opening of an opposite axial end thereof, the inserting side portion of the pipe being connected to the connector housing by engagement with the retainer, the retainer being held by the retainer holding portion in engagement with an engagement window formed on the retainer holding portion, comprising;

• a pipe connecting portion to be connected to the inserting side portion of the pipe in anti-rotating relation, and
• a connector connecting portion to be connected to the connector in anti-rotating relation by engagement non-rotatably with the engagement window of the retainer holding portion, the connector connecting portion being constructed on or constructed integrally with the pipe connecting portion.

An anti-rotation device for a pipe and a connector to restrain relative rotational movement of a pipe and a connector, the connector having a connector housing provided with a connecting portion for a mating member to be joined with a pipe on one axial side thereof and a retainer holding portion holding a retainer on an opposite axial side thereof, the pipe including an inserting side portion of straight tubular shape inserted in and connected to the connector housing through an opening of an opposite axial end thereof, the inserting side portion of the pipe being connected to the connector housing by engagement with the retainer, the retainer being held by the retainer holding portion in engagement with an engagement window formed on the retainer holding portion, comprising;

• a pipe connecting portion to be connected to the inserting side portion of the pipe in anti-rotating relation, and
• a connector connecting portion to be connected to the connector in anti-rotating relation by engagement non-rotatably with the retainer, the connector connecting portion being constructed on or constructed integrally with the pipe connecting portion.

An anti-rotation structure for a pipe and a connector to restrain relative rotational movement of a pipe and a connector, the connector having a connector housing provided with a connecting portion for a mating member to be joined with the pipe on one axial side thereof, the pipe including an inserting side portion of straight tubular shape inserted in and connected to the connector housing through an opening of an opposite axial end thereof, comprising;

• an anti-rotation device for a pipe and a connector having a pipe connecting portion to be connected to the inserting side portion of the pipe in anti-rotating relation, and a connector connecting portion to be connected to the connector in anti-rotating relation, the connector connecting portion being constructed on or constructed integrally with the pipe connecting portion.

An anti-rotation structure for a pipe and a connector to restrain relative rotational movement of a pipe and a connector, the connector having a connector housing provided with a connecting portion for a mating member to be joined with the pipe on one axial side thereof, the pipe including an inserting side portion of a straight tubular shape inserted in and connected to the connector housing through an opening of an opposite axial end thereof, comprising;

• a rotation preventive slit formed in the connector housing, and
• a stay formed on the inserting side portion of the pipe so as to project outwardly, and fitted in the rotation preventive slit in anti-rotating relation.