Abstract:
A sealing section (1) has a metal-reinforced elastomeric securing strip of substantially U-shaped cross-sectional area which can be secured to a coachwork pillar to the sealed and an elastomeric sealing strip fixed to the securing strip and acting together with a counter-member of the coachwork for sealing purposes. There are critical regions with special deformation of the sealing section (1) when the latter is in its fitted position. Without special measures, the sealing strip would probably be undesirably kinked in these critical regions. Only by being heated to a temperature above the manufacturing temperature of the sealing section (1) and subsequent cooling can the sealing section (1) be given at least approximately the permanent special deformation in a recess (29) in a heatable shaping tool (2) corresponding to the special deformation.
Abstract:
A device (1) has a multi-component injection head (8) to which are connected elastomer extruders (9, 10), an introduction device (21) for a composite material and a plastic extruder (2) via a calibration and cooling zone (5). From an outlet (15) of the multi-component injection head emerges a profiled section of composite chemically bonded thermoplastic synthetic materials and elastomers. Said section is co-vulcanised in a downstream cross-linking zone (17).
Abstract:
A window (3) can move relative to a motor vehicle door. On each side of the window (3) a sealing arrangement (4) comprises a profiled sealing member (9, 10) which is provided in its regions which come into sliding contact with the window (3) with a cover strip (12) of thermoplastic plastics. At least on its side facing the window (3) the cover strip (12) is profiled so as to reduce or prevent squeaking.
Abstract:
The composite section (1) has an adhesive tape (2) that is durably bonded to a sealing strip (3). The adhesive tape (2) has a flexible substrate (4) of foam, the first surface (5) of which has a first adhesive layer (6) covered with a pull-off liner (7). A second surface (8) of the substrate (4) opposite the first surface (5) is thermally melted onto a facing surface (9) of the sealing strip (3) and is durably welded with the likewise heated facing surface (9) of the sealing strip (3) to form the composite section (1).
Abstract:
A composite section (43) consists of a fastening rod (33) made of a thermoplastic material and of section rods (30, 31) made of elastomers, i.e. a section rod (30) made of sponge rubber and a section rod (31) made of soft rubber. All rods (30, 31, 33) are secured to each other by co-extrusion and co-vulcanisation. The plastic fastening rod (33) takes over the function of the usual metallic reinforcements of state-of-the-art composite sections (43). The composite section (43) may thus be three-dimensionally shaped, in that it is heated up to the melting temperature of the fastening rod (33), which is then given the desired shape in a shaping tool and cooled in said shape until the fastening rod (33) has regained its non-plastic state. A dimensionally stable profile moulding is thus obtained.
Abstract:
In numerous applications of hosing made of plastics material, e.g. the conveyance of fluids, as well as in sealing and damping applications, there exists the problem that hoses installed in curved configurations with too small a radius of curvature can collapse, resulting in a degradation or breakdown of important functions provided by the hose. The device proposed for the manufacture of suitable hose has an injection-moulding die (8) with at least one connection point (13, 14, 15) for a barrel extruder and with a centrally located mandrel (12) round which the moulding material flows. Fitted in one end (9) of the die is a disc (11) which determines the external cross-section of the hose and surrounds the mandrel (12) coaxially at a certain distance. The shape of the mandrel surface matches that of the interior cross-section of the hose. The mandrel (12) and/or the disc (11) can rotate about their common axis (10).
Abstract:
The invention concerns a sealing system (2) which comprises at least one sealing profiled section (3) for a vehicle roof frame. The sealing profiled section (3) is formed by a reinforcement and a profile consisting of at least one elastomer. The reinforcement takes the form of a prefabricated injection-moulded plastics part and, in a mould, is provided over at least part of its surface with the profile. The reinforcement has a substantially U-shaped cross-section over its entire length. The sealing system (2) is three-dimensional and can be secured to connection parts of the vehicle roof frame by means of securing elements (11, 12). In the mould, an end cap (6, 7) is integrally formed on at least one end face of each sealing profiled section (3).
Abstract:
Sections (2 and 3) of a meandering wire element (1) are laid end to end and aligned flush with one another. Connecting elements (8) in the form of wire pieces are laid over the two final loops (5) of each section (2, 3) at a point about half way between a longitudinal axis (10) and outer edges (7) of the meandering wire element (1). The wire pieces (8) are welded to wire-like elements (4) of the sections (2, 3).
Abstract:
A sealing strip (1) for motor vehicles has a moulded seal (19) with openings through which clips (16) of a plastic fastening rail (11) extend into the anchoring holes of a car body. The moulded seal (19) is injection-moulded and vulcanised in a form tool (2) on a fastening rail (11) laid into the form tool. The form tool (2) is subdvided and has a recess (8) into which the fastening rail (11) is laid. Caps (9) for each of the clips (16) arranged on one of the parts (6) of the mold extend into the recess (8) and sealingly enclose the clips (16) when the form tool (2) is closed. When the form tool (2) is closed, each cap (9) is pressed with its free edge (18) into tight contact with a base (12) of the fastening rail (11) which bears the clips (16). A coupling layer (15) may be arranged between the fastening rail (11) and the moulded seal (19).
Abstract:
A profiled seal (1) is fastened to a flange (2) of a car body opening which can be closed by a closure member (4). The profiled seal (1) has a support part (6) and a resilient sealing part (12) fastened thereto and co-operating with the closure member (4). The sealing part (12) has a first hollow section (13) which is fastened to the support part (6). A hollow space (18) of a second hollow section (17) is partially bounded by a carrier wall (19) of the first hollow section (13). A sealing wall (21) of the second hollow section (17) co-operates with the closure member (4) to form a seal. The hollow space (18) of the second hollow section (17) is also bounded by a support wall (20) supported on the carrier wall (19).