Abstract: A tubular body sealing mechanism which can easily make a hermetic seal.

Abstract: A tubular body sealing mechanism which can easily make a hermetic seal.

Abstract: A fuel injection rail includes a rail body including an upper case 30 made of a metal and an injector holding member 32 made of a resin, provided in its outer surface with recesses 35 in which holding parts 37 of the upper case 30 engage and a sealing groove 38 spaced from the recesses 35; and sealing means 39 placed in the sealing groove 38 to seal the joint between the upper case 30 and the injector holding member 32. The fuel injection rail can be readily assembled. The joint between the upper case 30 and the injector holding member 32 is sealed with high reliability.

Abstract: A pipe connecting device includes a female connecting member and a male connecting member. The female and the male connecting member can be restrained from turning relative to each other without using additional locking cover or the like and without being subject to various restrictions placed by actual piping conditions. A retainer (46) is provided with retaining parts (56a, 56b) that engage with an annular ridge (54) formed on the male connecting member (44) to restrain the male connecting member (44) from axial movement relative to the female connecting member (42), A noncircular part of the male connecting member (44) and the retaining parts (56a and 56b) of the retainer (46) constitute a locking structure for restraining the male and the female connecting member (44, 42) from turning relative to each other.

Abstract: A pipe connecting device includes a female connecting member and a male connecting member. The female and the male connecting member can be restrained from turning relative to each other without using additional locking cover or the like and without being subject to various restrictions placed by actual piping conditions. A retainer (46) is provided with retaining parts (56a, 56b) that engage with an annular ridge (54) formed on the male connecting member (44) to restrain the male connecting member (44) from axial movement relative to the female connecting member (42), A noncircular part of the male connecting member (44) and the retaining parts (56a and 56b) of the retainer (46) constitute a locking structure for restraining the male and the female connecting member (44, 42) from turning relative to each other.

Abstract: The present invention provides a retainer for a pipe connecting device, capable of being disengaged from a pipe without using any special disconnecting tool when disconnecting the pipe from the connector housing, and of remaining on a connector housing without being separated together with the pipe from the connector housing when the pipe is disconnected from the connector. A retainer (17) of an elastic material is interposed between a pipe (14) and a connector housing (15) in a known manner. When the pipe connecting device is in a connecting state, first catching edges (26a) of a pair of flexible catching parts (26) formed in a middle part of the retainer (17) are in engagement with a stopping protrusion (18) formed on the pipe (14), second catching parts (26b) lie in openings (20) formed in the connector housing (15) and are in engagement with support bars (19). Parts near the pair of second catching edges (26b) are connected integrally by fixed walls (28) serving as a spacing means.

Abstract: A pipe joining construction which maintains airtightness for a long period of time, easily ensures the required dimensional accuracy, and surface finish accuracy, and can decrease cost. The pipe joining construction is characterized by a seal member S mounted at the outer periphery of a male end form (2) on a connector (1) or a pipe M and a collar (5) covering the outer periphery of the tip end of the male end form (2). The collar (5) has a tapered portion with a tapered outer periphery. The collar (5) is used as a holding member for the seal member S. Alternately, a ring member (11) is mounted between the seal members and a bead (26) on the male end form (2).

Abstract: Prevention of incomplete connection of pipes, and easy and visual checking for incomplete connection between the male and female members from the outside, and the prevention of dirt and dust from entering the connection are aimed.