Tube connection structure of fluid pressure-operated apparatus

摘要

An insert section (34) of an insert member (28) is inserted into a tube member (26) in a state in which the insert member (28) is detached from a recess (29) to form a diametrally expanded section (39) on the tube member (26). Subsequently, the insert member (28) is fitted to the recess (29) to install the tube member (26) to the recess (29). At this stage, an outer circumferential surface (40) of an expanded section (36) of the insert member (28) tightly contacts with an inner circumferential surface (42) of the recess (29) to effect the sealing function. Subsequently, a tapered section (56) and an outer circumferential surface of the tube member (26) are resin-welded by using a welding material (58). Thus, the tube member (26) is prevented from disengagement from a body (18).