EP0941389A1 - Base de puits et moule pour la production de telles bases - Google Patents

Base de puits et moule pour la production de telles bases

Info

Publication number
EP0941389A1
EP0941389A1 EP97945659A EP97945659A EP0941389A1 EP 0941389 A1 EP0941389 A1 EP 0941389A1 EP 97945659 A EP97945659 A EP 97945659A EP 97945659 A EP97945659 A EP 97945659A EP 0941389 A1 EP0941389 A1 EP 0941389A1
Authority
EP
European Patent Office
Prior art keywords
channel
mold
manhole
section
mandrel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97945659A
Other languages
German (de)
English (en)
Inventor
Andreas Posch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ing Julius Posch GmbH
Original Assignee
Ing Julius Posch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AT208196A external-priority patent/AT405725B/de
Priority claimed from AT207996A external-priority patent/AT406395B/de
Application filed by Ing Julius Posch GmbH filed Critical Ing Julius Posch GmbH
Publication of EP0941389A1 publication Critical patent/EP0941389A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
    • B28B7/04—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article one or more of the parts being pivotally mounted
    • 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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories

Definitions

  • the invention relates to a manhole base made of concrete or similar material, with a jacket, at least two openings provided in the jacket and with a channel connecting the openings, formed by recesses in the base plate, the upwardly facing surface of the base plate one to the axis of the manhole base Has concentric, substantially conical recess.
  • Manhole bases are components of manholes that are structures for an underground drainage channel or an underground sewage pipe. Shafts serve in particular for ventilation, control, maintenance and cleaning and, if necessary, the inclusion of systems for lifting sewage, for merging, as well as for changing the direction, inclination and cross-section of channels.
  • the manholes are assembled from ring-shaped prefabricated parts (of concrete or the like) with sleeves, the bottom part of a manhole being a manhole bottom with a floor.
  • the manhole bases consist of a bottom plate (floor), a flume, and an inlet opening and an outlet opening at the ends of the same.
  • the channel has a slope from the inlet to the outlet to prevent water standing in the channel in the lower part of the shaft, even when there is little water.
  • a lower part of the shaft of the type mentioned at the outset is known from FR-2 623 536 A.
  • the surface of the floor facing upwards is of the lower part of the manhole recessed conically.
  • the channel forming recesses are provided in the bottom, which lead to the openings in the wall of the manhole base.
  • the conical recess is not part of the channel, since this is formed exclusively by the recesses leading to the openings. This results in disadvantageous edges in the region of the channel - this also applies to the lower shaft part, which can be produced with a shape according to US Pat. No. 5,413,307 A.
  • the invention has for its object to provide a manhole base available, which can be manufactured in one operation and which has a favorable formation of the channel between the inlet opening and outlet opening, even if they are not diametrically opposed to each other with respect to the axis of the manhole base.
  • this object is achieved in a manhole base of the type mentioned at the outset in that the conical recess in the manhole bottom part, together with the recesses emanating from it and leading to the openings in the casing of the manhole bottom part, forms the channel of the manhole bottom part and that the lower end of the conical recess lies at the same height as the deepest point of the recesses leading to the openings in the casing of the manhole base.
  • the conical recess forms, since it extends to the deepest point of the recesses, which leads to the inlet opening and to the
  • the manhole base according to the invention can be made in one piece from concrete or the like. are produced and the subsequent concreting of the channel customary in the prior art is eliminated.
  • the lower part of the manhole according to the invention is characterized in that the recess at its deep most section is flattened.
  • the recess is curved at its deepest section.
  • an embodiment is also conceivable in which it is provided that the recess is tapered at its deepest section.
  • the radius of curvature of the deepest section of the recess is the same size as the radius of the inner end of the opening. This avoids disadvantageous changes in cross-sectional shape and size in the channel.
  • the recesses leading to the openings run radially with respect to the central axis of the lower part of the shaft.
  • the manhole base according to the invention is particularly easy to manufacture if it is provided that the recesses leading to the openings are channel-like or groove-like, upwardly open depressions.
  • the same advantage is offered by an embodiment of the lower part of the shaft according to the invention, in which it is provided that the recesses leading from the cutout to the openings are delimited in their upper region by two parallel, flat surfaces.
  • the recesses leading to the openings in the casing of the manhole base are flattened in their lower section.
  • the recesses leading from the cutout to the openings have a pointed section in their lower section.
  • the recesses leading from the cutout to the openings in have a circular cross-sectional shape in their lower portion.
  • This embodiment offers in particular if it is additionally provided that the radius of the circular cross-sectional shape of the recesses leading from the cutout to the openings has a radius which is the same size as the radius of the inner end of the openings the advantage that of that through the recesses formed channels to the openings in the jacket there is a smooth transition without disturbing edges.
  • the inner surface of the recess merges via a shoulder into a surface leading to the free upper edge of the lower part of the shaft. It is preferred that the shoulder sloping towards the axis of the lower shaft part. Furthermore, it can be provided that the surface that leads to the free, upper edge of the lower shaft part is a truncated cone surface that widens conically upwards.
  • the invention further relates to a mold for the manufacture of manhole bases made of concrete or similar material in the top-bottom position with a molded jacket and a molded core, a channel shaped body arranged on the molded core for the formation of a channel and with socket shaped inserts for the molding of at least one inlet opening and at least one drain opening in the wall of the manhole base, which are arranged on the channel body on its surfaces facing away from the mandrel, the mandrel for forming the bottom of the manhole base to be produced having a hemispherical or spherical-spherical region, and wherein the channel shape - Body has two side wall parts that lead to the mandrel, and which are connected in the use position by a wall part above.
  • Molds are used for the manufacture of manhole bases, which contain a molded jacket and a Men, cylindrical mold core, with socket inserts to form the inlet and the outlet are arranged between the mold core and the mold jacket. Furthermore, a support ring is provided in order to produce a stepped formation on the free edge, which is the upper edge in the position of use of the lower shaft part, via which the lower shaft part can be connected to the shaft ring lying thereon.
  • the cavity between the mold jacket and the mold core is poured out with wet or earth-moist concrete and, if necessary, shaken. After the concrete has hardened, the form is removed and the flume is concreted in by hand after the raw manhole base has been turned over.
  • US Pat. No. 5,413,307 A A form of the type mentioned above for the manufacture of manhole bases is known from US Pat. No. 5,413,307.
  • the mandrel has an upper end which is curved approximately in the shape of a spherical cap, but is otherwise formed in the shape of a cylinder jacket.
  • a single continuous shaped body is provided for the channel, which is arranged exclusively in the region of the curved end of the mandrel. Since the channel body in US-5 413 307 A is welded to the mandrel, there is no possibility in US-5 413 307 A to use one and the same mandrel for straight as well as for angled or curved channels. For this are special mold cores required.
  • the invention is also based on the object of providing a mold which, when used, does not require subsequent concreting of the channel in the manhole bases and the replacement of the channel body required in the prior art can be avoided as far as possible.
  • the mandrel has a frustoconical-shaped area which, in the position of use of the shape, adjoins the hemispherical or spherical cap-shaped area at the bottom and widens towards the bottom
  • the channel shaped body for forming the channel consists of at least two channel shaped bodies which rest with their side wall parts both on the hemispherical or spherical cap-shaped area and on the truncated cone-shaped area of the mandrel, and that the top generators of the channel shaped body in the area of use in the shape of the shape are arranged in the position of use at the upper end of the hemispherical or spherical cap-shaped region of the mandrel.
  • the invention provides a form for producing manhole bases in which the channel does not have to be concreted afterwards.
  • an essentially cylindrical section of the mandrel connects to the larger diameter end of the mandrel, an annular connecting part arranged between the mandrel and the essentially cylindrical section being inclined to the axis of the mandrel.
  • a manhole bottom part can be produced, the upper end of which, in the position of use, is shaped particularly favorably for connecting further manhole parts, for example manhole rings.
  • the socket mold inserts are movable, in particular pivotable, with respect to the shaped channel bodies.
  • the socket mold inserts can be aligned in a favorable or required position.
  • the exchange of the socket mold inserts is particularly simple if, according to a proposal of the invention, the socket mold inserts are detachably fastened to the channel shaped bodies. It is preferred if the socket mold inserts are fastened to the channel shaped bodies by a plug connection.
  • the side wall parts of the channel body run parallel to one another and that the wall part connecting the side wall parts is curved, this results in a particularly streamlined shape of the channel.
  • Channel shaped body in top view i.e. seen in the position of use of the form from above, are curved.
  • manhole bases can be produced whose channels are not straight but curved.
  • the channel is to be formed straight in the lower part of the manhole made according to the invention, an embodiment is preferred in which it is provided that the channel body in plan view, i.e. seen in the position of use of the form from above, are straight.
  • a preferred embodiment of the shape according to the invention is characterized in that the position of the channel body can be changed relative to one another.
  • manhole bases can be produced in which the inlet opening of the outlet opening is arranged either diametrically or non-diametrically opposite one another.
  • one channel body is fixed and the other channel body is movably arranged.
  • the movable channel shaped body abuts and is guided on the annular intermediate part connecting the conical section of the mandrel with the substantially cylindrical section thereof.
  • the setting of the movable channel shaped body in the desired position is particularly easy if it is provided according to the invention that a curved slot is provided in the intermediate part, which is penetrated by retaining screws for the movable channel shaped body.
  • abrasive plates with a partial circular ring shape are arranged on the side of the channel shaped body, which are arranged on the ring surface Cover areas of the slot not covered by the channel body.
  • the end walls of the channel body facing away from the mold core are aligned parallel to the axis of the mold core. This opens up the possibility in a simple manner of producing manhole bases, the side walls of which are aligned parallel to the axis of the manhole base in the region of the channel form bodies.
  • the adaptation of the shape according to the invention to different manhole bases is particularly simple if it is provided that the mandrel is divided at least once. It is preferred if the upper hemispherical or dome-shaped section on the lower frustoconical section of the mandrel is arranged interchangeably and / or rotatably. In this embodiment of the form according to the invention, it is preferred that at least one channel shaped body is attached to the upper part of the shaped core and is adjustable, in particular pivotable, with the latter relative to the other channel shaped body. In this way, the position of the channel shaped bodies relative to one another can be set particularly easily.
  • the Invention may be provided that a clamping device is provided for fixing the upper portion of the mandrel at the lower portion thereof. It is preferred that the clamping device, a clamping screw, a clamping cylinder, an electromagnetic tension anchor or the like. is.
  • motor drives are provided for the relative rotation of the sections of the mandrel. It is preferred that the motor drive is a rack and pinion drive, a pressure medium motor, or the like. is.
  • the mold core is divided twice. This extends the options for adapting the shape to the design of the manhole base.
  • the mandrel of the mold according to the invention is subdivided at least once, it is preferred within the scope of the invention that the lower part of the conical section of the mandrel is connected to the substantially cylindrical section, that one channel channel body at the central section and the other at the upper section the channel body is arranged.
  • the channel shaped bodies can be fastened to the mandrel by plug connections or by welded connections.
  • the former variant is preferred if the channel bodies are to be exchangeable.
  • manhole bases which have more than one inlet opening or outlet opening are to be produced with the mold according to the invention, it is provided according to a proposal of the invention that more than two, preferably three channel shaped bodies are arranged on the mold core.
  • the upper end faces of the channel body facing the bottom of the manhole base to be produced are inclined to the axis of the mandrel in accordance with the slope of the channel in the manhole base to be produced, the required slope of the channel is reached without reworking.
  • the surfaces of the channel-shaped elements facing the socket-shaped inserts are spherical or spherical cap-shaped and that the connecting pieces of the socket-shaped inserts are designed to be opposite, so that the sleeve inserts are movable in the manner of a ball joint in relation to the shaped channel bodies.
  • Figure 2 shows the lower shaft section in section along line II-II in Fig. 1.
  • FIG. 3 shows an axial section of a known manhole lower part with a diametrically opposite inlet opening and outlet opening;
  • Fig. 4 shows the lower shaft part of Fig. 3 in section along the line
  • FIG. 5 the lower part of the manhole of FIG. 3 with the channel concreted in;
  • FIG. 6 shows a first embodiment of a shaft lower part according to the invention in axial section, the left half of FIG. 6 a section perpendicular to the axis of the inlet or outlet opening and the right half of FIG. 6 a section parallel to the axis of the closed - or drain opening shows; 7 shows a section along the line VII-VII from FIG. 6 with inlet and outlet openings with different nominal widths;
  • FIGS. 6 and 7 a second embodiment of a manhole base according to the invention in views corresponding to those of FIGS. 6 and 7;
  • FIGS. 6 and 7 a third embodiment of a manhole base according to the invention in views corresponding to those of FIGS. 6 and 7;
  • FIG. 13 shows a known form for producing manhole bases, with a socket insert
  • FIG. 17 schematically shows a first embodiment of a mold according to the invention
  • FIG. 21 shows a mold core of a mold according to the invention in another embodiment
  • FIG. 22 shows a further embodiment of a mold core of a mold according to the invention.
  • FIG. 23 shows another embodiment of a mold core of a mold according to the invention
  • 24 shows the mandrel from FIG. 23 in a top view
  • Figure 25 shows a detail of the mandrel of Figures 23 and 24;
  • FIG. 31 is a largely schematic top view of a mold core of a mold according to the invention.
  • FIG. 33 is a side view of a shape according to the invention with a channel body with a socket shape insert;
  • FIG. 34 is a plan view of FIG. 33.
  • the known lower shaft part 1 shown in FIGS. 1 and 2 consists of a base plate 2 and a jacket 3.
  • an inlet opening 5 and an outlet opening 6 are provided diametrically opposite one another .
  • a channel 9 is provided between the inlet opening 5 and the outlet opening 6, the bottom of which has a (slight) slope from the inlet opening 5 to the outlet opening 6 when the bottom part 1 of the shaft 1 is set up on a horizontal base with its base plate 2.
  • 3 to 5 show a known lower shaft part 1, in which the inlet opening 5 and outlet opening 6 are arranged offset from one another, that is to say relative to one another with respect to the axis 11 of the lower shaft part 1 are not opposite.
  • 3 and 4 show the manhole base 1 without the channel 9 produced by subsequent concreting. This is shown in FIG. 5 as a curved channel 9.
  • the jacket 3 of the known lower shaft part 1 has on its upper, free edge a training 10 corresponding to the spigot end of the sleeve of shaft rings and, in the exemplary embodiment shown, is of simple design so that a shaft ring formed with a corresponding counter step is secured against slipping on the side Manhole base 1 can be placed.
  • a shaft lower part 20 according to the invention shown in FIGS. 6 and 7 consists of a sole plate 2 and a casing 3, on the upper free edge of which the stepped formation 10 is provided, 3 openings 5 and 6 being provided in the casing are. Furthermore, the manhole base 20 according to the invention has a channel 9 leading from the inlet opening 5 to the outlet opening 6. According to the invention, this channel 9 has the special features described below.
  • the channel 9 is composed of a conical, widening upwards, e.g. conical or frustoconical recess 21, which is arranged concentrically to the axis 11 of the manhole base 20, and from two of this recess 21, leading to the inlet opening 5 and to the outlet opening 6 in the jacket 3 of the manhole base 2, for example channel-like or groove-like recesses 22 together.
  • the lateral surface of the conical recess 21 simultaneously forms the inner surface 23 of the jacket 3 of the manhole base 20.
  • the lower end of the conical recess 21 is at the same height as the deepest point (generatrix) 24 of the channel 9 and is rounded in the exemplary embodiment shown.
  • the upper edge of the recess 21 merges with an inclined surface 25, which slopes radially inwards, ie towards the axis 11 of the lower shaft part 20, into the upwardly widening surface 26 of the jacket 3, which leads to the free, upper one Edge of the lower shaft part 20 leads.
  • the recesses 22 lead to the inlet opening 5 and the outlet opening 6 from the central, conical recess 21, which is concentric to the axis 11 and which can also be pointed or flattened at its lower end.
  • the recesses 22 run radially with respect to the axis 11 of the lower shaft part 20
  • Outwardly extending recesses 22 are composed of a lower section 30 (sole) bent in the exemplary embodiment shown and a section 31 which is open at the top and is delimited by two mutually parallel walls 32.
  • the manhole bottom part 20 is a one-piece component that can be produced in a single work step, for example made of concrete, the channels 9 of which come from a central, conical recess 21 and from the recesses 22 leading away from this to the inlet opening 5 and the outlet opening 6 put together.
  • the special shape of the recess 21 and the recesses 22 results in a favorable shape of the channel 9, in which, due to the inclined inner surface 23, undesirable water accumulations such as occur on the surfaces next to the channel 9 in the known manhole rings 1 (see FIGS. 1 and 2) can occur, are avoided. Also is prevented by the shape of the channel 1 that 9 solids and the like in the lower shaft part 20 according to the invention in the region of the channel. get caught and lead to constipation.
  • the lower section 30 of the channel 9 merges smoothly into the inner end of the inlet opening 5 and outlet opening 6, as shown in FIG. 6 in its right half.
  • the radius of the curvature of the inner surface in the lower region 30 of the channel 9 also corresponds to the radius of the inlet opening 5 and the outlet opening 6.
  • the radius of the deepest section 30 of the recess 21, which is curved in the form of a dome, is also formed with this radius.
  • FIGS. 10, 11 show further exemplary embodiments of manhole bases 20 according to the invention, the differ from the exemplary embodiment shown in FIGS. 6 and 7 primarily by different angles of inclination of the inner surface 23 of the conical recess 21.
  • the construction according to the invention is also suitable for manhole bases 20 with more than two openings in the casing.
  • the special design of the channel 9 not only ensures favorable flow conditions for liquids through the lower shaft part 20, even if solids are carried along with the liquid (waste water), but also opens up the possibility of removing the lower shaft part 20 including its channel 9 Concrete or the like Produce material in a single operation.
  • a known form shown in FIGS. 12 and 13 for producing manhole bases 1 has a form jacket 111, a cylindrical form core 112 with wall 113 and cover 114.
  • a ventilation device 115 can be provided to facilitate the demolding work.
  • Turning pins 116 are fastened to the shaped jacket 111, so that the shape can be rotated about the axis 117 defined by the turning pins (lower shaft parts are concreted in the top-bottom position, that is, in such a way that the base plate 2 points upward).
  • a washer 118 is provided to form the step on the free edge of the wall 3 of the lower shaft part 1.
  • the socket mold inserts 119 are arranged with the aid of holding strips 120 at the points at which the inlet opening 5 and the outlet opening 6 are to lie in the finished lower part 1 of the manhole.
  • Shaft lower parts 1 produced with the molds shown in FIGS. 12 and 13 do not yet have a channel 9 which has to be produced subsequently.
  • the channel 9 must be shuttered and concreted. This is not only time-consuming, but also results in a non-monolithic design of the lower shaft part 1.
  • FIG. 14 to 16 show a known mandrel 112, which is designed as a cylinder jacket with a lid.
  • a channel body 121 is permanently welded to the cover of the mandrel 112.
  • a second channel shaped body 122 is fastened to a cylindrical channel shaped body support 123 which is rotatably mounted on the cover of the shaped core 112. After loosening the tensioning screw, the channel body 124 attached to the cylindrical support 123 can be adjusted so that straight and angled channel 9 can be produced with the aid of the known mandrel 112 (manufacturer: Niemeyer Sons & Co. KG).
  • a mold 130 shown in FIG. 17 with a mold core 131 has a mold jacket 132, at the lower end of which the support ring 118 for the formation of the step is arranged on the free edge of the wall of the manhole base.
  • the mold jacket 132 Provided within the mold jacket 132 is the mold core 131, which tapers conically upwards and in the exemplary embodiment shown ends in a spherical cap-shaped upper end 133.
  • the upper end 133 of the mandrel 131 can also be hemispherical.
  • two channel mold bodies 135 are arranged which carry socket mold inserts 119 pointing outwards.
  • the transition between the conical section 134 of the mandrel 131 and the lower substantially cylindrical or (as shown) conical part 136 is formed by an annular intermediate part 137 which is inclined to the axis 138 of the mold 130, so that in the finished, by means of Form 130 manufactured Lower shaft part gives a shoulder, the surface of which falls from the outside inwards downwards, so that water flowing down from above can flow into the center of the lower shaft part 1.
  • FIG. 18 shows a top view of the mandrel 130 with its conical section 134 and the two channel moldings 135 with the socket mold inserts 119.
  • the shape of the channel mold body 135 can be seen from the sectional view of FIG. 19.
  • the channel shaped bodies 135 can, as indicated in FIG. 17, be formed inclined at their upper portion to the axis 138 by the topmost generator in the position of use being inclined to the axis 138.
  • the channel defined by it has a slope from the inlet opening to the outlet opening.
  • channel shaped bodies 135 are removably arranged on the mold core 131, they can be replaced by differently shaped channel shaped bodies 135, so that manhole bases with different channel diameters or shapes can be produced.
  • more than two channel form bodies 135 can be arranged on the mold core 131 if a manhole lower part with an inlet opening and two or three outlet openings is to be produced.
  • the socket mold inserts 119 are removably arranged on the channel mold body 135.
  • a plug-in connection 140 is preferred which allows the mandrel 131 and the channel shaped bodies 135 to be pulled out of the manhole base as soon as possible after the production process, the socket body 119 remaining in the still bottom part of the manhole and serving as a support.
  • This mode of operation and embodiment is particularly preferred when manhole bases are made of earth-moist concrete.
  • the mold core 131 can have a vent valve, in particular in its upper end, in order to close the formwork removal process facilitate.
  • FIG. 21 shows an embodiment of a mold core 131 according to the invention, which has a conical section 134 that has been divided once.
  • the arrangement is such that one of the channel body 135 is attached to the lower portion 141 adjacent to the part 136, whereas the second channel body 135 is attached to the upper, rotatable portion 142. In this way, the angle between the channel shaped bodies 135 can be changed if manhole bases are to be produced in which the inlet opening is not diametrically opposite the outlet opening.
  • the mandrel 131 shows a preferred embodiment of the design of the mandrel 131 shown in FIG. 21.
  • the mandrel 131 consists of two parts, an upper part 142 and a lower part 141, the plates 144, 145, which are provided in the region of the division plane 143, abut one another.
  • the parts 141 and 142 of the mold core 131 can be rotated relative to one another about an axis 146 which runs perpendicularly from top to bottom through the mold core 131.
  • a screw nut 147 is provided on the plate 145 of the upper part 142.
  • a screw bolt is inserted through a central hole in the base plate of the mandrel 131 and is screwed into the nut 147.
  • the screw bolt is tightened, the upper part 142 and lower part 141 of the mandrel 131 from FIGS. 21 and 22 are fixed to one another, so that a once-set relative position of the two channel shaped bodies 135 is fixed.
  • the upper part 142 and lower part 141 and thus the channel shaped body 135 fastened to it can be rotated relative to one another, so that the shaped core 131 can also be used for the production of lower shaft parts with a diametrically opposed inlet opening and outlet opening.
  • FIG. 23 to 25 show in different views and in detail a further embodiment of a mandrel 131 according to the invention, which is subdivided once. It can be seen from the illustration in FIG. 23 that above the Cut 136 of the mandrel 131, a frustoconical section as the lower part 141 of the mandrel 131 and above this a spherical segment-shaped section as the upper part 142 of the mandrel 131 is arranged. 23, the channel body 35 on the right in FIG. 23 is rigidly connected to the lower part 141 of the mandrel 131 via a connecting piece 150. The flute shaped body 135 on the left in FIG. 23 is connected to the rotatable upper part 142 of the shaped core 131 and is guided so as to rest on the connecting part 137.
  • an arcuate slot 151 is provided in the intermediate part 137 of the mandrel 131, through which screw bolts are inserted, which are screwed into nuts 152 which are attached to a base plate 153 of the channel shaped body 135 are attached.
  • a curved grinding plate 154 is connected to the channel shaped body 135, which rests on the intermediate part 137, protrudes on both sides from the lower end of the channel shaped body 135 and ( 24) covers the areas of the slot 51 which are not below the channel shaped body 135, so that concrete cannot escape there.
  • nuts 156 are fastened to the inside of substantially vertical walls 155 of the channel shaped body, into which nuts 156 can be fastened for fastening socket shape inserts 119 for forming the inlet and outlet openings.
  • FIG. 26 again shows a once-divided mold core 131 and its assignment to the mold jacket 132, a socket mold insert 119 being fastened to the channel mold body 135.
  • FIG. 27 shows an embodiment of the mandrel 131 according to the invention, in which it is divided twice.
  • the parts (lower part 141, middle part 161, upper part 142) of the mold core 131 can be fixed to one another after they and the channel mold bodies 135 carried by them have been adjusted into the corresponding position (see FIG. 28).
  • the one left channel shaped body 135 is connected to the upper part 142 of the mold core 131 and the right channel shaped body 135 in FIG. 27 is connected to the central part 161 of the mold core 131 by a welded connection.
  • FIG. 29 shows the individual parts of the mandrel shown in FIG. 27 in an exploded view.
  • the lower part 141 is not rigidly connected to the part 136 of the mandrel 131.
  • pneumatic or hydraulic clamping devices 170 can also be provided for locking the individual parts 136, 141, 161, 142 of the mandrel 131 to one another.
  • a pressure medium cylinder 171 is provided, the piston rod 172 of which is tensioned after the desired relative position of the channel body 135 relative to one another, so that the individual parts of the mold core 131 are fixed to one another in a non-rotatable manner.
  • a tensioning device 170 actuated by an electromagnet can also be provided.
  • electromotive drives pinion-rack drives 174, as indicated in FIG. 31 on the left or pneumatic or hydraulic cylinders 175, as indicated in FIG. 31 on the right
  • a control can be provided which drives move the channel mold bodies 135 into the respectively required position in accordance with a predetermined relative position between the inlet opening and the outlet opening.
  • the channel shaped bodies 135 can be curved (in plan view) if a curved channel formation is desired, as is shown in FIG. 5.
  • the mold core 131 according to the invention is subdivided at least once, it is possible to use parts without a channel mold body 135 instead of the parts equipped with channel moldings 135 if this is necessary because of the manhole base to be produced.
  • this can be provided, for example, in the embodiment of FIG. 30, where all three parts 141, 161, 142 of the mandrel
  • channel shaped bodies 135 can be provided with channel shaped bodies 135 or only two or only one of them with channel shaped bodies 135.
  • a hemispherical or dome-shaped shape can be selected for the free ends of the channel body 135, on which the socket mold inserts 119 or the socket bodies attached to the socket mold inserts 119 are provided, so that if the socket connection pieces are shaped in opposite directions, a mobility corresponding to a ball joint is provided Sleeve form inserts 119 is given to the channel body 135. In this case, the lateral closure to the molded jacket has proven itself
  • FIGS. 33 and 34 An exemplary embodiment of sleeve form inserts 119 movably attached to channel shaped bodies 135 is shown in FIGS. 33 and 34.
  • dome-shaped holding plates 190 are fastened to the externally facing surfaces of the channel shaped bodies 135 via tubular intermediate pieces.
  • a nut screw 192 is inserted through a hole in the middle of the holding plates 190.
  • the Socket mold inserts 119 have a dome-shaped counterplate 193 on their end facing the channel shaped bodies 135 or the holding plates 190 attached to them, which is congruently curved to the holding plate 190.
  • a hole 194 is provided through which the bolt of the nut screw 192 engages with play on all sides.
  • the socket mold insert 119 can be pivoted in any direction within the limits predetermined by the size of the opening 194 relative to the channel mold body 135. As soon as the socket mold insert 119 has assumed the desired position, the nut of the nut screw 192 is tightened and presses the counterplate 193 of the socket mold insert 119 against the holding plate 190 via the washer 195, so that the socket mold insert 119 is securely fixed.
  • the channel body 135 can be welded, screwed or fastened to a conical or hemispherical mandrel 131 or to parts thereof or fastened by means of a plug connection.
  • An example of a releasable connection of channel shaped bodies to a mold core 131 or parts 141, 161, 142 of the same is shown in FIG. 32.
  • a manhole base 20 with a base plate 2 and a jacket 3 has a channel 9 connecting an inlet opening 5 with an outlet opening 6.
  • the channel 9 is composed of a recess 21 which is arranged concentrically with the axis 11 of the manhole bottom part 20 and widens conically upwards and two of these groove-like recesses 22 leading radially outward to the inlet opening 5 and the outlet opening 6 men.
  • a form which has an essentially cylindrical casing 132 and a form core 131.
  • the mandrel 131 has a frustoconical portion 134 tapering upward in the position of use, the upper end 133 of which is hemispherical.
  • two channel bodies 135 are provided on the mold core 131.
  • the channel form bodies 135 carry socket form inserts 119.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)

Abstract

Une base de puits (20) présentant une semelle (2) et une enveloppe (3), comporte un canal (9) reliant une ouverture d'entrée (5) à une ouverture d'écoulement (6). Le canal (9) est formé d'un évidement (21) s'élargissant de façon conique vers le haut, disposé concentriquement par rapport à l'axe (11) de ladite base (20), et de deux cavités en forme de rainures (22) dirigées radialement vers l'extérieur à partir de cet évidement, vers l'ouverture d'entrée (5) et vers l'ouverture d'écoulement (6). Pour la production de tels fonds de puits (20), on utilise un moule présentant une enveloppe de forme générale cylindrique (132) et un noyau (131). Ce noyau (131) possède une section (134) en forme de tronc de cône s'amincissant vers le haut, en position d'utilisation, dont l'extrémité supérieure (133) est hémisphérique. Pour la formation du canal (9) dans la base (20), il est prévu, sur le noyau (131), deux pièces moulées (135), ces dernières portant des pièces d'insertion en forme de manchon.
EP97945659A 1996-11-29 1997-11-28 Base de puits et moule pour la production de telles bases Withdrawn EP0941389A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AT207996 1996-11-29
AT208196 1996-11-29
AT208196A AT405725B (de) 1996-11-29 1996-11-29 Form für das herstellen von schachtunterteilen
AT207996A AT406395B (de) 1996-11-29 1996-11-29 Schachtunterteil
PCT/AT1997/000260 WO1998023820A1 (fr) 1996-11-29 1997-11-28 Base de puits et moule pour la production de telles bases

Publications (1)

Publication Number Publication Date
EP0941389A1 true EP0941389A1 (fr) 1999-09-15

Family

ID=25597588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97945659A Withdrawn EP0941389A1 (fr) 1996-11-29 1997-11-28 Base de puits et moule pour la production de telles bases

Country Status (5)

Country Link
EP (1) EP0941389A1 (fr)
AU (1) AU5109898A (fr)
DE (1) DE19781344D2 (fr)
HR (1) HRP970643B1 (fr)
WO (1) WO1998023820A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6413694B1 (en) 1998-09-18 2002-07-02 Kodak Polychrome Graphics Llc Processless imaging member containing heat sensitive sulfonate polymer and methods of use

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT500886B8 (de) * 2003-04-29 2007-02-15 Schluesselbauer Johann Ing Vorrichtung zum herstellen eines schachtbodens aus beton
WO2004091877A1 (fr) 2003-04-15 2004-10-28 Schluesselbauer Johann Procede pour realiser le fond d'un puits

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565347A (en) * 1983-07-19 1986-01-21 A-Lok Products, Inc. Monolithic precast invert system
FR2557899B3 (fr) * 1984-01-05 1986-01-03 Equip Francais Batiment Regard pour installations d'acheminement d'un fluide.
DE3611394C2 (de) * 1986-04-04 1994-03-31 Niemeyer Gmbh & Co Kg Soehne Formvorrichtung für Betonformkörper
US4941643A (en) * 1989-01-26 1990-07-17 A-Lok Products, Inc. Apparatus for forming inverts and manhole assemblies and the like utilizing adjustable invert forming members joined with an intermediate flexible portion
US5413307A (en) * 1993-11-22 1995-05-09 The Concrete Company Precast manhole invert forming
DE4417025A1 (de) * 1994-05-14 1995-11-16 Juergen Roeser Verfahren zur Herstellung eines mit einem Gerinne versehenen Formteils

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9823820A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6413694B1 (en) 1998-09-18 2002-07-02 Kodak Polychrome Graphics Llc Processless imaging member containing heat sensitive sulfonate polymer and methods of use

Also Published As

Publication number Publication date
DE19781344D2 (de) 2000-08-24
AU5109898A (en) 1998-06-22
HRP970643A2 (en) 1998-06-30
HRP970643B1 (en) 2000-10-31
WO1998023820A1 (fr) 1998-06-04

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