Abstract: When a retainer is mounted on or in a retainer mounting portion and is positioned at an inserting position, a pipe is inserted into the retainer mounting portion. An annular engaging projection of the pipe advances in the connector housing while spreading leg portions of the retainer outwardly. When the annular engaging projection reaches a connecting position, the retainer is automatically moved to an engaging position and snap-engages with the annular engaging projection.

Abstract: A connecting portion of a quick connector is provided with a pair of stop arms. Each of the stop arms has an arm body that integrally includes an overhanging stop portion and an engaging pawl on a leading end portion thereof. The connecting portion is inserted in a connecting hole formed in a fluid line component until the engaging pawl engages with an outwardly directed engaging projection of a mounting portion that is provided on an opening portion of the connecting hole. A checker has a main body that is provided integrally with verifying portions. Each of the verifying portions is formed with a receiving recessed portion for accommodating the overhanging stop portion therein when the checker is disposed on an outer circumference of the mounting portion.

Abstract: An engagement protrusion is formed in square in cross-section integrally on an outer surface of a main body of a retainer, and is provided on a position opposed to a space for deformation so as to extend from an opposite axial end to short of an axial center of the main body of the retainer. An engagement recess is formed generally identical in cross-section to the engagement protrusion on an inner peripheral surface of a retainer holding portion so as to extend from an opposite axial end of the retainer holding portion to one axial end of a raised portion. The retainer is fitted in the retainer holding portion so that the engagement protrusion is inserted in the engagement recess.

Abstract: A quick connector has a connector housing, a tube connection component, a pipe body and a retainer. The quick connector further has a checking operation portion provided with a holding component. The holding component has a fitting hole and a gate component which is continuous with an opening end of the fitting hole. The holding component is adapted to cause the pipe body connected to the housing to fit in the fitting hole through the gate component in a snap-on manner and to connect with an outer circumference of the pipe body by rotary motion of the checking operation portion. The holding component is also adapted to be prevented from connecting with the outer circumference of the pipe body if the pipe body is not fully inserted into the connector housing.

Abstract: A quick connector includes: a cylindrical connector housing having a tube connecting portion and a pipe retainer portion that has a retainer; and an annular seal member fitted on an inner circumferential surface of the connector housing. The retainer is integrally formed with the pipe retainer portion and having an engagement portion projecting toward the interior of the pipe retainer portion, and a disengagement operating portion adapted to move the engagement portion radially outwardly. The connector housing is formed by engaging with each other end side in an axial direction of a tube side member having the tube connecting portion, and one end side in the axial direction of a pipe side member having the pipe retainer portion. The annular seal member is axially positioned in an annular recess formed in the connector housing when the tube side member and the pipe side member are engaged with each other.

Abstract: Connection verifying device for a pipe and a connector has a body portion, a stop and verification arm and an abutment finger. The body portion includes an abutment plate and a fit-on portion. The stop and verification arm extends from an outer periphery of the abutment plate in one axial direction, while the abutment finger protrudes from one axial end of the fit-on portion in one axial direction. The abutment finger is arranged so as to abut and urge an annular projection of a pipe into an engagement slit of a retainer when the pipe and the connector are in half-fitting relation.

Abstract: A first quick connector is provided with a connector housing and a wire retainer. The connector housing has a retainer mounting portion which is formed with engagement slits. The wire retainer is mounted on the retainer mounting portion such that engagement arms enter the engagement slits and project in the retainer mounting portion. Each of the engagement slits has a first slit part on one circumferential end and a second slit part on the other circumferential end with intervening a divider portion therebetween.

Abstract: Anti-rotation device for a pipe and a connector has a pipe connecting portion and a connector connecting portion constructed integrally on the pipe connecting portion. The anti-rotation device is mounted on the pipe and the connector while the pipe connecting portion clips a straight tubular inserting side portion of the pipe in anti-rotating relation and the connector connecting portion is connected to the connector in anti-rotating relation. Thereby the pipe is connected to the connector in anti-rotating relation.

Abstract: When a retainer is mounted on or in a retainer mounting portion and is positioned at an inserting position, a pipe is inserted into the retainer mounting portion. An annular engaging projection of the pipe advances in the connector housing while spreading leg portions of the retainer outwardly. When the annular engaging projection reaches at a connecting position, the retainer is automatically moved to an engaging position and snap-engages with the annular engaging projection.

Abstract: A connecting portion of a quick connector is provided with a pair of stop arms. Each of the stop arms has an arm body that integrally includes an overhanging stop portion and an engaging pawl on a leading end portion thereof. The connecting portion is inserted in a connecting hole formed in a fluid line component until the engaging pawl engages with an outwardly directed engaging projection of a mounting portion that is provided on an opening portion of the connecting hole. A checker has a main body that is provided integrally with verifying portions. Each of the verifying portions is formed with a receiving recessed portion for accommodating the overhanging stop portion therein when the checker is disposed on an outer circumference of the mounting portion.

Abstract: An inner peripheral surface of a tube connecting portion of a tubular connector housing is divided into a first receiving portion on one axial side and a second receiving portion on an opposite axial side by an inwardly directed annular parting projection. A first O-ring of one axial side and a second O-ring of an opposite axial side are disposed with intervening a collar therebetween on an opposite axial side in the first receiving portion. The first O-ring is made of FKM and the second O-ring is made of FVMQ. A third O-ring is disposed on one axial side in the second receiving portion. The third O-ring is also made of FVMQ.

Abstract: A quick connector is configured as such that one axial end of an engagement window is co-planar with an annular end surface inside of a retainer holding portion. A checker jut toward an axial direction is provided integrally on a base portion of an inwardly directed engagement portion of a checker. The checker is mounted on the connector housing so that the checker jut toward one axial direction abuts the one axial end of the engagement window.

Abstract: A quick connector includes: a cylindrical connector housing having a tube connecting portion and a pipe retainer portion that has a retainer; and an annular seal member fitted on an inner circumferential surface of the connector housing. The retainer is integrally formed with the pipe retainer portion and having an engagement portion projecting toward the interior of the pipe retainer portion, and a disengagement operating portion adapted to move the engagement portion radially outwardly. The connector housing is formed by engaging with each other other end side in an axial direction of a tube side member having the tube connecting portion, and one end side in the axial direction of a pipe side member having the pipe retainer portion. The annular seal member is axially positioned in an annular recess formed in the connector housing when the tube side member and the pipe side member are engaged with each other.

Abstract: A quick connector includes: a connector housing having at one end side in an axial direction thereof a tube connecting portion and at other end side in the axial direction thereof a substantially cylindrical retainer holding portion; and a retainer fitted into the retainer holding portion, the retainer having a retainer body and a disengagement operating portion, the retainer body being formed so as to be snap engaged with an annular engagement portion provided on an insert end portion of a pipe, the disengagement operating portion extending from the retainer body toward the other end side in the axial direction. The retainer holding portion has an operating portion receiver that projects radially outwardly at a position corresponding to the disengagement operating portion, and the operating portion receiver receives the disengagement operating portion therein.

Abstract: This invention is a quick connector which has a connector housing including an upstream and downstream end with an opening at the downstream end and an outer circumference with a first and second radial end, a tube connection component provided upstream along the longitudinal axis of the housing; a pipe body having an insertion end adapted to be fully inserted into the connector housing from the downstream opening end; a retainer provided downstream along the axis of said connector housing; an annular protruding flange formed on said insertion end of said pipe body with said flange adapted to be snapped onto said retainer to connect said insertion end to said retainer; with said connector housing being configured in such a manner that a removable checker can be attached to said first radial end of the outer circumference; with the quick connector further comprising: a checking operation portion having a first end connected to the second radial end of the outer circumference of said connector housing and havin

Abstract: A first quick connector is provided with a connector housing and a wire retainer. The connector housing has a retainer mounting portion which is formed with engagement slits. The wire retainer is mounted on the retainer mounting portion such that engagement arms enter the engagement slits and project in the retainer mounting portion. Each of the engagement slits has a first slit part on one circumferential end and a second slit part on the other circumferential end with intervening a divider portion therebetween.

Abstract: A connector having an embedded valve that can ensure discharge of fluid flow at a stable flow rate. The connector comprises an upstream body component 9 having a valve housing 33 for housing a valve body 57; and an outlet component 35 formed integrally with the downstream valve housing component 33 in the downstream axial direction. The outlet component 35 is constructed with a cylindrical base 37 which forms an outlet passageway downstream of the embedded valve and includes a fitting component 39. The fitting component 39 is a downstream short extension of the cylindrical base 37 which extends along the longitudinal axis of the connector through the center length of second connector component 13. The fitting component 39 is part of the upstream portion of the cylindrical base 37. The outlet passageway 43 of outlet component 35 and the inside second connector component 13 communicate with each other through exit-orifice 45.

Abstract: First, second and third O-rings are disposed in an inner peripheral surface of a resin tube connecting portion of a connector housing. A resin tube is connected to the resin tube connecting portion while fitted thereon such that an opposite axial end of a fit-on portion of the resin tube reaches an opposite axial end of the resin tube connecting portion and the opposite axial end of the fit-on portion of the resin tube is located substantially on an axial position of the third O-ring. The tubular connector housing is made of resin and the resin tube has a barrier layer against gasoline fuel or the like.

Abstract: A connecting structure and method for affixing an open end of a tube composed from thermoplastic resin material(s) to a tube connecting portion of a quick connector having a cylindrical geometry and at least one annular stopper on the cylindrical outer circumference thereof with said tube connecting portion being adapted to be press fitted into said open end of said resin tube. The connecting structure comprises; an annular band composed of elastomeric rubber which surrounds the open end of said resin tube adjacent the location of attachment to said quick connector having a length at least equal to the diameter of the cylindrical outer circumference of the quick connector and a diameter such that a tightening force is applied to the resin tube upon press fitting said tube connecting portion into the open end of said resin tube to prevent disengagement therefrom. The connecting structure forms an integrated assembly with the tube connecting portion of the quick connector.

Abstract: A process for producing a thin die-cast molded article of an aluminum material having a portion having a thickness in the range of 0.4 to 1.2 mm using a mold having a gate having an opening of 0.2 mm or greater and the same as or smaller than the thickness of the portion of the molded article separated from a gate portion, members constituting the gate having been treated by nitrogenation at the surface. The thin die-cast molded article of an aluminum material can be produced efficiently with excellent flow of the melted metal of the aluminum material through the gate portion.