Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B7/00—Moulds; Cores; Mandrels
  • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
  • B28B7/168—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for holders or similar hollow articles, e.g. vaults, sewer pits
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
  • B28B7/00—Moulds; Cores; Mandrels
  • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
  • B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C11/00—Details of pavings
  • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
  • E01C11/224—Surface drainage of streets
  • E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
  • E01C11/228—Gutters for porous pavings
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03F—SEWERS; CESSPOOLS
  • E03F3/00—Sewer pipe-line systems
  • E03F3/04—Pipes or fittings specially adapted to sewers
  • E03F3/046—Open sewage channels

Definitions

• the invention relates to a drainage channel according to the preamble of patent claim 1.
• Such drainage channels are used in particular for drainage of areas on which relatively little contamination by soil, (litter) sand or foliage is to be feared, ie good accessibility of the trough space for cleaning purposes is not absolutely necessary.
• a core which is to form the channel space, designed as a sensitive sheet metal hollow body in which a set of cores is movably mounted, which are to form the inlet openings.
• Such devices are not only extremely complicated and sensitive, but it can also be the required high diameters and lengths are not made.
• the invention has the object of developing a drainage channel of the type mentioned in such a way that in a simple manner a stable channel with great length and in large diameters can be produced.
• An essential point of the invention lies in the fact that the channel space is designed conically in such a way that a solid core or even two conically tapering solid cores tapering towards one another from the channel ends can be used to produce the channel.
• a completely different path is taken with the present invention. It is therefore accepted that contiguous grooves at the interfaces form a step or (when using two cores) depressions and elevations or narrowing and widening of the groove space in the longitudinal direction of a gutter strand arise.
• steps or cross-sectional changes only have a negligible influence both on the risk of contamination and on the hydraulic properties of the drainage channels.
• the inlet openings are formed conically narrowing from the top to the groove space. It is thereby achieved that, for the production of the drainage channel, the cores for forming the drainage openings during demolding need not be retracted in the core extending in the longitudinal direction of the channel, but by enlarging the gap between this set of cores and the core extending in the longitudinal direction of the channel can be removed from the mold.
• These training of the inlet openings is unusual, since until now exactly the reverse direction of the taper of the opening was sought cross sections. However, it has surprisingly been found that even with a relatively small expansion of the opening cross sections a risk of contamination does not exist.
• the edge-side inlet openings have substantially straight edges extending in the groove longitudinal direction.
• maximum opening cross-sections of the peripheral inlet openings are achieved.
• lateral inlet openings may be provided in the side walls, which open into the ra ⁇ d Schemeen inlet openings. Such lateral inlet openings are necessary for drainage of water-permeable surface coverings. Due to the fact that the edge-side inlet openings have edges running essentially straight in the channel longitudinal direction, the lateral inlet openings can be particularly simple Way are formed by running from outside to inside cores, so that the side inlet openings are tapered towards the groove space.
• sealing gaps which can be filled with sealing material are provided on the end faces of the drainage channels.
• absolutely dense gutter strands can be produced.
• the front inlet openings are preferably designed such that the sealing joints are accessible with an injection mold for injecting the sealing material and for controlling it from above. Whereas hitherto the sealing material was introduced before the joining together of two adjoining grooves and the channels were then pushed together in the hope that a correct sealing has taken place, this sealing can now be carried out from above, checked and, if necessary, repaired.
• the ceiling boundary surface is provided in a preferred embodiment of the invention with a reinforcing or filter fabric or the like sheet material. This is only possible by the conicity of the groove space and the resulting manufacturing procedure, since the set of cores to form the Ent- stations openings on the running in the longitudinal direction of the drainage gutter core, so that the sheet material on this Apply contact surface and can pour in with it.
• the upper side on edge-side elevations which are formed in particular as a continuous edge strip outside the inlet openings.
• These marginal strips lead to an increase in the load capacity in that on the one hand the edge strips themselves supported on the side walls of the channel and thus insensitive to stress, when crossing in the transverse direction of the channel, the laterally rolling tires first load the edge region and then with reduced area the critical rib area in the gutter center.
• laterally inflowing water is prevented from overflowing on the opposite side, so that the dewatering effect of the gutter is improved.
• the device for producing the drainage channel comprises a molding box having at least one bottom and side walls, at least one core withdrawable from the molding box to form a groove space, the cross section of which tapers conically along its longitudinal direction, and a set of cores forming inlet openings from the bottom to the core are conically tapered.
• the arrangement is so simple. Before the product reaches its final strength, the groove is pushed up with the core together. In this way, it can not happen that shrinks when the product shrinks on the cores of the inlet openings and possibly ruptures.
• the conical core in turn has on the contact surface on a wear-resistant surface or (in total) a wear-resistant material. The conical core is then pulled out of the product.
• the manufacture of the mold is particularly easy, particularly with respect to the set of cores forming the inlet openings, when the core has a planar bottom surface extending parallel to the bottom.
• all cores to form the inlet openings can be the same length.
• the cores forming the inlet openings are fixed to the ground. Inside some of these cores are provided in the vertical direction movable ejector pins and used so that no mixture of binders and fillers can flow under the core area. These push-pins are pushed up by a device so that they lift the conical core together with the product.
• FIG. 1 is a schematic longitudinal section through an imple mentation shape of the drainage channel according to the invention
• Fig. 2 is a view taken along the line II-II of Fig. 1,
• FIG. 3 shows a section through the channel along the line III-III of Fig. 1,
• FIG. 4 is a plan view of the channel along the line IV- IV of FIG. 1
• Fig. 5 is a schematic longitudinal section through a mold for producing a drainage channel
• the drainage channel comprises a body 10 with a top 11, side walls 12, 13 and a bottom 14. At end faces 15, 16 further such drainage channels can be connected, or a gully or the like device for discharging the water in a channel.
• sealing joints 17 are attached, which are indicated in Fig. 3 with a broken line. After joining two such bodies 10 17 sealing material 18 can be filled in the sealing joints, so that in a groove space 30 running water can not escape.
• the channel space 30 has a ceiling boundary surface 31, which runs plane-parallel to the top 11.
• Side boundary surfaces 32, 33 and a Sohlenbegrenzungs surface 34 are slightly inclined from the one end face 15 to the other end face 16 to the respective (plane-parallel) outer or bottom surfaces of the body 10, so that the height difference shown in Fig. 1 the thickness x at the one end face 15 to the thickness x + ⁇ x results.
• inlet openings 20, 20 ' are provided which run conically from top to bottom, that is to say into the channel space 30.
• the inlet openings 20, 20 ' preferably have a rectangular cross-section, in particular edges 21, 21' on the outer sides, which run essentially in a straight line.
• sheet material 27, for. B. a glass fiber fabric or the like reinforcing fabric in the area of the ceiling boundary surface 31 with cast, so exactly in the area in which the highest tensile stresses occur at a bending load.
• the sheet material 27 may also be a filter material which prevents objects from entering the gutter space. Cleaning is easily possible by suction devices.
• the casting mold comprises a molding box 40 with a bottom 41 and side walls 45, 46 and end walls 47, 48. Through the one end wall 48, a core 42 is inserted into the molding box 40 which (in FIG. 5 to the left) is pulled out of the molding box 40 can be.
• the core 42 has a lower surface 43, which is formed flat, that is plane-parallel to the bottom 41.
• a set of cores 44 is provided, which serve to form the inlet openings.
• the mold is placed as shown in FIGS. 5 and 6 and filled from above with a mixture of resin and fillers, in particular sand. After curing, the core 42 is pulled out of the molding box 40. Then the finished Enticas s mecanics trough can be pulled upwards out of the molding box 40.
• the set of cores 44 is preferably fixedly connected to the bottom 41, so that these cores remain in the mold. It should be noted at this point that only the most essential parts of the mold box 40 have been described, so for example, the mold sections were not further explained to form the sealing joint.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• Ceramic Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Structural Engineering (AREA)
• Civil Engineering (AREA)
• Architecture (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Sewage (AREA)
• Moulds For Moulding Plastics Or The Like (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=34524033

Family Applications (1)

Country Status (4)

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Family Cites Families (6)

• 2004
  • 2004-10-18 WO PCT/EP2004/011784 patent/WO2005040513A1/de active Application Filing
  • 2004-10-18 RU RU2006117364/03A patent/RU2006117364A/ru not_active Application Discontinuation
  • 2004-10-18 UA UAA200605478A patent/UA84301C2/ru unknown
  • 2004-10-18 EP EP04790609A patent/EP1689942A1/de not_active Withdrawn

Non-Patent Citations (1)

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