摘要:
Gaskets especially for refrigerators are made from a polymeric material consisting of a mixture comprising α-olefin copolymers. The gaskets obtained therefom are lighter, thinner and have better mechanical characteristics than those of the known art.
摘要:
PCT No. PCT/EP96/01742 Sec. 371 Date Oct. 13, 1998 Sec. 102(e) Date Oct. 13, 1998 PCT Filed Apr. 25, 1996 PCT Pub. No. WO97/40974 PCT Pub. Date Nov. 6, 1997A method and apparatus for heat-welding corners lengths of profiles together, for sealing gaskets, where the profiles include at least one extendible or compressible air chamber and are cut at their ends at an angle. The method includes positioning two profiles, with one of the cut ends of each profile opposite each other inside a suitable device including clamps which make the positioning possible, heating the positioned ends until the positioned ends reach a softened state, choking the profiles so as to completely occlude the air chambers along choking sections, closing the clamps in order to cause the profiles to come into mutual mating contact at the heated ends, injecting air into the air chambers by perforating the air chambers in a region between the choking sections and the heated ends so as to apply pressure to walls of the profiles in that region, pressing the walls against walls of the clamps to join the heated ends by heat-welding under pressure, and opening the occluded sections. The apparatus includes a heating element to heat one of the ends of each profiles, clamps to position the profiles with the cut ends opposite each other and for mutually mating the heated ends together, needles for injecting air inside an interior of the air chambers nearby the ends to be heat-welded, and devices to choke the profiles by completely occluding said air chambers along choking sections.
摘要:
The invention relates to a weather strip in particular for window and door frames and the like comprising a base portion (2) arranged to be engaged in a respective anchoring area (3) of a first bearing frame (4); a head portion (5) arranged to act against an abutment area (6) associated with a second supporting frame (7); a band of magnetic material (8) operatively associated with said head portion; and an intermediate connecting portion (9) between said base and head portions. The intermediate portion (9) in section comprises a single fillet-like element having at least one unstraight portion (9a), said fillet-like element being able to bend and extend so as to move the head portion (5) along any direction from a rest position to a plurality of operating positions located at a given distance from said rest position.
摘要:
A process for manufacturing a moulding element for car bodies comprising the steps of: manufacturing a main body (2) of elongated conformation and manufacturing a continuous support element (7) carrying attachment projections (9) which are then connected with the main body (2) for engaging a corresponding anchoring region (5a) formed on a car body (5). In particular the attachment projections (9) are rigidly in engagement with the continuous support element (7) which is fitted by sliding in a longitudinal housing (10) formed in the main body (2)and then axially fixed to this latter.
摘要:
A moulding element for car bodies is provided which comprises a main body (2) of elongated conformation and attachment projections (9) operatively associated with the main body (2) and adapted to engage a corresponding anchoring region (5a) formed on a car body (5). The attachment projections (9) are rigidly in engagement with a continuous support element (7) to be fitted in a longitudinal housing (10) formed in the main body (2).
摘要:
The present invention discloses a plastic material profile (1) for refrigerators, freezers and the like, which are provided with a door (30) and an inner door (31) having a bellows gasket (20) portion which provides the sealing between the door and the cabinet (32). The profile and the gasket portion are coupled together, or they are just one integral part obtained by coextrusion of two materials having different stiffness in order to allow, when needed, an easy disjunction of the gasket portion from the profile along their connection area, said profile having a groove (23) suitable to receive, in substitution, a bellows gasket portion, said groove (23) being defined by a pair of walls (5) and (5') which extend vertically or obliquely from a base (3), characterised in that said base (3) is shaped substantially as a C section which can be elastically deformed by means of a soft material elbow (8) obtained by coextrusion on the same section, such elbow thus working as a hinge to allow the elastic enlargement of said C section, in order to realize the snap engagement of the edge of said inner door (31) inside (19) the section itself, and, externally and below said C section, of the profile, providing a sealing on the edge of said door (30).
摘要:
A thermal-insulation element, in particular for window and door frames and the like, comprises a main body (2) arranged to be operatively interposed between an inner half (3) and an outer half (4) of a framework (5) in a window or door frame and an abutment portion (6) transversely projecting from said main body and arranged to receive a head portion (7) of a sealing weather strip (8) in abutment relationship therewith, as well as a band (9) of magnetic material operatively associated with said abutment portion.
摘要:
The invention relates to a seal (20; 120; 220; 320; 420) for a dishwasher (1) adapted to be interposed between a peripheral edge (14a, 14b, 14c) of an opening (10) of a tub (6) for cookware and a door for closing (12) said opening (10). The seal (20; 120; 220; 320; 420) comprises a metal part (30; 330; 330'; 430) adapted to be connected to the peripheral edge (14a, 14b, 14c) of the opening (10), a first part (40); 140; 240), made of polymeric material, integrally connected to the metal part (30; 330; 330'; 430) and a second part (50; 150), made of polymeric material, associated with the first part (40; 140; 240) and adapted to be contacted by the door (12) when the door (12) is arranged in a position for closing the opening (10).