A method for bonding thermoplastic fiber-composite parts comprises providing surface texture on one or both parts being bonded, and/or providing both parts with engagement features. Such surface textures and engagement features have a specific geometry and fiber alignment that facilitate fibrous interlock between the two parts at a bonding interface via in-situ consolidation.

The present disclosure relates to a housing having an interior and an exterior. The housing includes a first housing piece and a second housing piece that are coupled together by a joint. The joint includes a bonding material and the joint is configured such that when the bonding material is pressurized during formation of the joint the bonding material is predisposed to move toward the interior of the housing as compared to the exterior of the housing.

A resin connector (10) includes a tubular connector main body portion (11) which is formed to contain a reinforcing filler in a main portion base material resin, and a tubular connector end portion (12) which is formed of a end portion base material resin without containing the reinforcing filler or containing the reinforcing filler at a lower proportion than the connector main body portion (11) and is joined to the connector main body portion (11) to constitute a tubular end portion. The resin tube (20) is formed of a material having a higher absorption rate of a laser beam than the connector end portion (12) and is fitted to the connector end portion (12) to be welded to an inner peripheral surface or an outer peripheral surface of the connector end portion (12) and not to be welded to the connector main body portion (11).

A method for watertight welding, and components formed using that welding method, wherein the welding method includes providing a first component half with a groove and a protruding ridge located therein, providing a second component half with a tenon shaped to match the profile of the groove, disposing the tenon inside the groove such that the tenon contacts the protruding ridge, applying an ultrasonic power source near the groove to melt the protruding ridge, and applying opposing vertical force to the first component half relative to the second component half, such that the protruding ridge wedges in a bonding seam between an outside surface of the tenon and an inside surface of the groove.

A snap-action non-separable connection between the lid and container, incorporating snap-action profiles formed in the top part of the container around the opening for filling the container, and snap-action profiles formed in the lid, where the said profiles interlock, is characterised in that the snap-action profiles in the top part of the container are formed on the front surface of that part into segments which do not contact one another, where formed on the side surface of each segment is at least one snap protrusion and where in the top part of the lid are slots on the side surface of which formed is at least one snap ledge, and where the number of the slots in the lid is equal to the number of the said segments.

An end cap for a pressure vessel has at least one part for connecting the end cap to a housing. The at least one part comprises a number of recesses. The recesses are arranged to form at least one fluid passage between an inside and an outside of the end cap when the end cap is plugged on the housing. A housing for a pressure vessel has at least one counterpart for connecting an end cap to the housing by engaging a part of the end cap. The at least one counterpart comprises a number of recesses. The recesses are arranged to form at least one fluid passage between an inside and an outside of the housing when the end cap is plugged on the housing. A method for leak testing a pressure vessel and a method for checking a connection between at least one end cap and a housing of a pressure vessel for leak tightness are also described.

A sprinkler assembly includes a sprinkler body and a tubular connection fitting. The tubular connection fitting includes a first end for connection to a fluid supply pipe and a second end with the sprinkler body inserted therein, the tubular member including an outer surface and an inner surface defining an internal conduit extending along a longitudinal axis, the inner surface of the tubular member includes a first stop surface spaced from the first end to define an insertion depth for the fluid supply pipe and a second stop surface to limit insertion of the sprinkler body into the second end. The first stop surface defines an annular channel for housing an end of the fluid supply pipe.

Provided are a fuel tank made of polyketone and a method of manufacturing the same. The method includes injection-molding an upper cover and a lower cover using an injection-molding machine, placing the upper cover and the lower cover at a relatively high position and a relatively low position, respectively, assembling the upper cover and the lower cover with each other, and bonding contact surfaces between the upper cover and the lower cover to each other using a laser beam. Since the upper cover and the lower cover are formed at the same time and are bonded to each other immediately after being assembled by a machine, it is possible to achieve automated production, mass production and remarkable cost reduction. Further, since the fuel tank has sufficient rigidity due to the rigidity of polyketone without an additional reinforcing member, it is possible to manufacture a lightweight fuel tank.

A rotational driving force transmission mechanism includes a cylindrical shaft made of fiber reinforced plastic, and a first constant velocity joint. The shaft is joined to the first constant velocity joint via a metallic intervening member which is attached to one end of the shaft in the axial direction. The intervening member includes a shaft portion and a main body portion. The shaft portion is inserted into the one end of the shaft from a distal end side thereof. The main body portion is of a bottomed tubular shape made up from a bottom part joined to a proximal end side of the shaft portion, and a tubular portion fitted over the one end of the shaft. The first constant velocity joint includes an inner ring fitted externally over the tubular portion of the intervening member.

A connecting shaft including a first shaft made of metal, a second shaft made of resin, and a collar made of metal including a first fitting portion fitting on an outer peripheral surface of the first shaft and a second fitting portion fitting on an outer peripheral surface of the second shaft. A gap between the outer peripheral surface of the second shaft and an inner peripheral surface of the second fitting portion is filled with an adhesive agent, and the adhesive agent is applied to an outer peripheral surface of the collar to cover an end face of the second fitting portion in an axial direction.