摘要:
A method of continuously manufacturing a hermetic plastic zipper wherein the plastic zipper has a readily peelable plastic layer prolonging in a lengthwise direction of the plastic zipper, the readily peelable plastic layer is welded using ultrasonic wave so that the peeling intensity of the welded portion is within a certain range, the method is characterized in that while the engaging portions are brought into a engaged state, the portion of the plastic zipper where the readily peelable plastic layer exists is inserted between an ultrasonic horn and an anvil, and the readily peelable layer is welded by using ultrasonic wave under a condition wherein the distance L between the ultrasonic horn and the anvil is uniformly held at an distance of H≧L≧0.85H wherein H stands for a maximum thickness of the plastic zipper under the engaged state.
摘要:
A switch comprises a switch housing including a cover, a terminal block welded to the cover and a fixed contact point therein, a moving block provided with a boss for fitting a manual shaft of an automatic transmission and a movable contact point corresponding to the fixed contact point and movable to the switch housing and elastic seal rings interposed between inner and outer peripheral surfaces of each of the terminal block and the cover, and the operation portion. One of the cover or the terminal block is formed of a colored, laser transmissive material and the other is formed of a laser non-transmissive material. The terminal block and the cover are automatically aligned with the moving block by an elastic force of the seal ring and a thermal welding part is circularly formed by means of a laser beam on the side of the outer periphery in each of the terminal block and the cover to be aligned for coupling the terminal block with the cover to fix the alignment.
摘要:
A support coil for radially supporting an elastically expanded tube material includes an extruded profile body consisting of a plurality of windings wound about a longitudinal axis of the support coil. Each of the windings has opposing end faces. A ratchet arrangement joins the end faces of the adjacent windings with respect to the longitudinal axis of the support coil. A tongue and groove arrangement joins the end faces of the adjacent windings with respect to a radial direction of the support coil. The tongue and groove arrangement is spatially separated from the ratchet arrangement.
摘要:
A molded resin complex is provided including a first resin molded product and a second resin molded product engaged with each other so as to be separable. The first resin molded product is obtained by molding a first resin having transparency with respect to laser light, the second resin molded product is obtained by molding a second resin pervious to laser light, and the first resin molded product and the second resin molded product are engaged with each other so as to be separable by one or more protrusions of the second resin molded product which are formed by applying laser light from the first resin molded product side while placing the first resin molded product and the second resin molded product either in a close state or in a contact state.
摘要:
A temperature controlled food service container is formed with an inner portion having side walls and an opening for the receipt of food, and an outer portion having sidewalls spaced from the inner portion with a eutectic gel, disposed between them. A ledge extends from the periphery of the outer portion with a flange extending from the inner portion seated against the ledge; and is held by an ultrasonic bond joining the ledge to the flange. The food container has ribs along the sidewalls of the inner and outer portions. Peripheral channels and ridges are formed respectively on the ledge and flange for welded engagement with each other, the channels having enlarged segments which extend beyond the cross-sectional dimension of a respective ridge received therein. The method for making the food service container includes molding an outer walled shell portion having a ledge with at least one peripheral channel, and molding an inner walled shall portion having a major peripheral flange with at least one peripheral protuberance. Thereafter a eutectic gel is placed into the outer walled shell portion and the inner walled shell portion is placed therein. The peripheral protuberance is indexed into the peripheral channel and the ledge and flange are ultrasonically bonded.
摘要:
A method of making a head for a semisolid product dispenser, such as a gel deodorant dispenser, comprises the steps of: providing a piece of porous media having a desired shape with a perimeter and openings through the media in the area inside of the perimeter, compressing at least the portion of the media inside of the perimeter between two parts of a hard tool so as to crush the media, thereby reducing the size of the openings, and affixing the porous media to a head frame to form the semisolid product dispenser head. Preferably the porous media is affixed to the head frame by an insert injection molding process, and the media is crushed in the same mold tool as is used to mold the head frame. A preferred porous media is made of two layers of extruded strands of polymer, where the strands in one layer are generally parallel to one another but are non-parallel to the strands in the adjoining layer, the strands are bonded at crossover points between the layers and have openings defined by spaces between the strands in one layer superimposed over spaces between strands in the adjoining layer. Preferably the head of the semisolid product dispenser is made by ultrasonically welding the head frame to a transfer member using a combination of double shear and energy-directing ultrasonic weld joints, coupled with a positive stop.
摘要:
A coupling member for connecting a part, provided for receiving or dispensing fuel and made primarily of HDPE (high-density polyethylene), to a fluid line has first, second, and third components made of meltable material. The third component forms a heat fusion joint with the part for receiving or dispensing fuel and has an undesirably high permeability and swelling capacity relative to fuel. The third component is connected to the first component by material bonding and positive-locking action. The second component has greater fuel blocking capacity and higher strength than the third component. The second component is embedded in the third component. A volume ratio of second and third components is selected such that combined properties of the second and third components concerning permeability, strength, and volume changes by swelling are approximated to these same properties of the second component. The first and third components are heat-fusible to one another.
摘要:
A fuel fill system includes an outer funnel and one or more components, each formed from a thermoplastic material. The components, which may include a flange, a tube, and a vapor recirculation fitting, are in fluid communication with the outer funnel via welded joints. The welded joints may be formed by at least one of: spin welding, hot plate welding, laser welding, vibration welding, and ultrasonic welding. The plastic to plastic weld provides an electrically conductive, substantially seamless, vapor permeation resistant joint between each of the components and the outer funnel.
摘要:
Laser welding is used to attach a laser-transparent component portion to an absorbing component portion at a laser weld joint area. The transparent component portion includes a first weld surface and a first taper locking surface formed opposite from the first weld surface. The absorbing component portion includes a second weld surface and a second taper locking surface formed opposite from the second weld surface. Prior to laser welding, the first and second taper locking surfaces cooperate to force and lock the first and second weld surfaces into abutting engagement at a predetermined pressure. A laser beam is then directed toward the first and second weld surfaces to permanently attach the component portions together. The first and second taper locking surfaces maintain the predetermined pressure during the laser welding process.
摘要:
A vehicular lamp in which bonding failure between a front lens and a lamp body is prevented while enhancing the bonding strength and improving the quality of the outer appearance around the bonded surface therebetween. An edge surface of a seal leg of the front lens and a receiving surface of a lamp body are bonded together by laser beam welding so as to improve the quality of the outer appearance of the portion around the bonded surfaces. The bonded surface is inclined at a predetermined angle with respect to a plane perpendicular to the bonding direction. Even if the edge surface of the seal leg or the receiving surface has a wave-like irregularity such that gaps are created in areas therebetween, the pressure in the bonding direction acting on the members to be bonded causes slippage between them, resulting in sealing the gaps. The beam spot diameter of a laser beam irradiated onto the receiving surface is increased in an amount corresponding to the angle of inclination of the bonded surface, thus increasing the bonding width and enhancing the bonding strength.