EP0659949A1 - Schachtbodenstück und Verfahren zur Herstellung von Betonformteilen, insbesondere Schachtbodenstücke - Google Patents

Schachtbodenstück und Verfahren zur Herstellung von Betonformteilen, insbesondere Schachtbodenstücke Download PDF

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Publication number
EP0659949A1
EP0659949A1 EP95100996A EP95100996A EP0659949A1 EP 0659949 A1 EP0659949 A1 EP 0659949A1 EP 95100996 A EP95100996 A EP 95100996A EP 95100996 A EP95100996 A EP 95100996A EP 0659949 A1 EP0659949 A1 EP 0659949A1
Authority
EP
European Patent Office
Prior art keywords
insert element
floor
manhole
piece
insert
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Withdrawn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
EP95100996A
Other languages
German (de)
English (en)
French (fr)
Inventor
Goji Ito
Eugen Baumgärtner
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.)
Baumgartner GmbH Maschinenfabrik
Original Assignee
Baumgartner GmbH Maschinenfabrik
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=12719477&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0659949(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Baumgartner GmbH Maschinenfabrik filed Critical Baumgartner GmbH Maschinenfabrik
Publication of EP0659949A1 publication Critical patent/EP0659949A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F11/00—Cesspools
    • 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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • 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

Definitions

  • This object is achieved by using a lost insert element, the outer circumference of which extends beyond the outer circumference of the mold core at least over part of the circumference and, with the inner circumference of the mold shell, offers a filling cross section which is sufficient for filling the mold cavity.
  • the outer circumference of the insert element which projects radially beyond the outer circumference of the mold core, is embedded in the concrete.
  • the insert element supports the bottom of the molded concrete part and distributes its weight over its embedded part in the concrete Outer circumference on the side wall of the molded part. In this way, deformations of the bottom of the concrete molding can be reliably prevented without an opening in the bottom having to be provided to support the weight of the bottom. After hardening, the insert element remains as lost formwork in the concrete molding.
  • the insert element can be designed as an insert plate or insert shell.
  • the insert element be provided with stiffening ribs on its side facing away from the mandrel.
  • reinforcement elements in particular made of structural steel, are placed on the side of the insert plate facing away from the mandrel.
  • the insert element is convex, the insert element with its concave side being placed on the upper end of the mandrel, the insert element can be given a high degree of stability in a particularly simple manner.
  • the insert element is conical, the insert element being placed with its concave side on the upper end of the mandrel.
  • the concrete molding can also be used to guide water.
  • the channel does not have to be straight, but can also be curved within the molded concrete part.
  • the filling cross section be at least 30%, preferably between 40% and 90%, of the cross section of the mold cavity.
  • the outer circumference of the insert element runs at a substantially constant distance from the outer circumference of the mandrel. It can be provided that the distance of the outer circumference of the insert element from the inner circumference of the molded casing is at least 20% of the distance at the respective point between the outer circumference of the molded core and the inner circumference of the molded casing, preferably between 30% and 90%, for complete filling of the mold cavity with concrete.
  • the outer circumference of the insert element has projections projecting radially outward. It is further preferred that the projections are distributed over the circumference of the insert element and have an angular spacing of 15 o to 120 o , preferably about 60 o , and that each projection has an average angular extent of 5 o to 15 o , preferably about 10 o , owns. This can ensure an effective distribution of the weight of the bottom of the molded concrete part on the side wall, while at the same time it can be ensured that the concrete fills the mold completely, ie in particular without voids under the outer peripheral edge of the insert element.
  • a mold 12 is used according to FIG. 8, which consists of a mold core 14, a mold jacket 16, a lower sleeve 18 and a mold upper part 20.
  • the upper mold part 20 can be transferred from a lowered position (see FIG. 8) to a raised position and vice versa by means of a lifting device (not shown in FIG. 8).
  • the upper mold part 20 can be moved in a direction running essentially parallel to the axis of the mold core 14 and indicated by the double arrow A in FIG. 8.
  • the lower sleeve 18 can be moved between a lower position (see FIG. 8) and an upper position (see FIG. 8) by means of a lifting device 22 in a direction that is also essentially parallel to the axis of the mandrel 14 and is indicated in FIG. 8 by the double arrow B. . 9) can be adjusted.
  • the mold jacket 16 runs at a radial distance from the outer circumference 14a of the mold core 14. In the axial direction, the mold jacket 16 projects beyond the upper boundary surface 14b of the mold core 14.
  • the lower sleeve 18 is arranged radially between the mold core 14 and the mold jacket 16 and stands on the surface shown in FIG. 8 upper end 22a of the lifting device 22.
  • the known method proceeds as follows: If the lifting device 22 with the lower sleeve resting on it 18 is in the lower position (cf. FIG. 8) and the upper mold part 20 is in the raised position, a predetermined amount of concrete is placed in a mold cavity 24 defined by the mold core 14, the lower sleeve 18 and the mold jacket 16 beyond the upper boundary surface 14b of the mandrel 14 filled. The concrete layer above the upper boundary surface 14b of the mold core 14 is then smoothed by lowering the upper mold part 20. For compaction, the entire mold 12 can be shaken by a vibrating device, not shown, in order to achieve a uniform distribution of the filled concrete.
  • the lower sleeve 18 is approximately flush with the floor of the manufacturing hall.
  • the shaft base piece 10 ' is then brought together with the lower sleeve 18 to a storage location by a transport device, for example a forklift truck, where it preferably remains until the concrete has completely hardened.
  • the above-described manufacturing method for manhole base pieces 10 ' has the disadvantage that the bottom part 10'a deforms during the period from the formwork to the complete hardening of the concrete due to its own weight (see FIG. 9), since the filled concrete withstands tensile stresses is not dimensionally stable. In the worst case, the bottom part can get 10'a cracks. Since the filled-in concrete is dimensionally stable against pressure loads, the side wall 10'b of the manhole bottom piece 10 'is not subject to any deformation.
  • an inner formwork plate 26 (see FIG. 10), which is provided with a spacer 26a and a screw bolt 26b, is placed on the upper end 14b of the mold core 14.
  • the upper mold part 20 ' has a recess 20'b formed at its lower end 20'a, in which the screw bolt 26b of the plate 26 is received when the upper mold part 20' is in its lowered position.
  • the upper mold part 20 ' is raised again and a holding plate 28 is placed on the manhole bottom piece 10' '.
  • the holding plate 28 is firmly connected to the formwork plate 26 via a locking screw nut 30 screwed onto the screw bolt 26b (see FIG. 11).
  • the diameter of the formwork plate 26 corresponds to the diameter of the mold core 14, while the holding plate 28 extends up to the inner circumference 16a of the mold jacket 16 and is supported on the side wall of the shaft base piece 10 ′′.
  • the shaft base piece 10 ′′ is then removed from the mold by extending the lifting device 22 (see FIG. 12) and, as described above, removed for the hardening of the concrete. In this state, the base part 10 ′′ a of the shaft base piece 10 ′′ is received between the plates 26 and 28 and is supported by them, so that it cannot deform under its own weight.
  • FIGS. 1 and 2 which is characterized by high productivity and with which the production of reliably watertight manhole base pieces is made possible.
  • the method according to the invention can be carried out with the same device with which the known method, not of the generic type and described above with reference to FIGS. 8 and 9, was carried out.
  • the method according to the invention differs from the known method of the generic type in that before the mold cavity 24 is filled with concrete, an insert element 34, for example an insert plate (see FIG. 1), on the upper end 14b of the mandrel 14 is placed, which has an outer diameter D2 (see. Fig. 2), which is larger than the outer diameter D1 of the concrete mold core 14. That is, the insert plate 34 is dimensioned such that its outer circumference 34a, seen in the radial direction, between the outer circumference 14c of the upper end 14b of the mold core 14 and the inner circumference 16a of the mold jacket 16.
  • the insert element 34 can be made, for example, of construction timber, pressboard, plastic, metal, fiber-reinforced cement or the like. Preferably, a material that adheres to concrete is used.
  • the manhole bottom piece 10 is released by extending the lifting device 22 (see FIG. 2).
  • the shaft base piece 10 is then transported to a storage location together with the lower sleeve 18 using a transport device, for example a forklift truck, and is left there until it has completely hardened.
  • the insert plate 34 picks up the weight of the base part 10a of the manhole base piece 10 and distributes this weight in the area of its outer circumference 34a to the side wall 10b of the manhole base piece 10. This reliably prevents deformation of the base part 10a without breaking through it To have to accept bottom part 10a. After hardening, the insert plate 34 remains as lost formwork in the shaft bottom piece 10.
  • insert plate 34 In order to increase the stability of the bottom part 10a of the manhole base piece 10 and to provide a stiffening for the insert plate 34, additional inserts, for example in the form of structural steel rods 36, can be placed on the insert plate 34 before the mold 12 is filled with concrete. Alternatively, it is also possible to provide the insert plate 34 with stiffening ribs on its side facing away from the mandrel 14.
  • FIG. 4 shows a further exemplary embodiment of a manhole base piece produced by the method according to the invention, analog parts being provided with the same reference numerals as in FIGS. 1 and 2, but increased by the number 100.
  • the insert element 134 is of slightly convex design. Due to the shape that bulges out in the direction of the bottom part 110a of the manhole base piece 110 that bears on it, the insert element 134 has better statics. Thus, insert elements 134 made of lighter and less stable materials can also be used for the production of manhole bottom pieces according to the method according to the invention.
  • FIG. 5 A further exemplary embodiment of a manhole base piece produced by the method according to the invention is shown in FIG. 5, analog parts being provided with the same reference numerals as in FIGS. 1 and 2, but increased by the number 200.
  • the insert element 234 has a conical shape, the tip of the cone being directed toward the bottom part 210a of the shaft base piece 210 which bears on the insert element 234.
  • the conical shape also has good static properties, so that the use of such an insert element 234 has the same advantages as the use of a convex insert element 134 described above.
  • FIG. 6 shows a further exemplary embodiment of a manhole base piece produced by the method according to the invention, analog parts being provided with the same reference numerals as in FIGS. 1 and 2, but increased by the number 300.
  • the insert element 334 not only takes on the supporting function for the base part 310a of the manhole bottom piece 310, but at the same time also takes on the function of water guidance.
  • the insert element 334 is formed with a channel 334a.
  • the insert element 334 is provided on its channel 334a with an essentially tubular extension 334b.
  • this projection 334b lies in a form-fitting manner between the mold core 314 and the molding jacket 316, so that when the mold is filled with concrete, it cannot penetrate into the space 334b1 enclosed by the tubular projection 334b.
  • a manhole bottom piece 310 can have a plurality of such inflow or outflow approaches 334b.
  • the channel 334a does not have to run in a straight line in the shaft bottom piece 310, but can also take a curved course.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Golf Clubs (AREA)
  • Forging (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Sewage (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Inorganic Insulating Materials (AREA)
EP95100996A 1990-04-27 1991-04-24 Schachtbodenstück und Verfahren zur Herstellung von Betonformteilen, insbesondere Schachtbodenstücke Withdrawn EP0659949A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP45443/90 1990-04-27
JP1990045443U JPH045906U (enrdf_load_stackoverflow) 1990-04-27 1990-04-27
EP91106618A EP0454098B1 (de) 1990-04-27 1991-04-24 Verfahren zur Herstellung von Schachtbodenstücken und Vorrichtung zur Durchführung des Verfahrens

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP91106618.1 Division 1991-04-24

Publications (1)

Publication Number Publication Date
EP0659949A1 true EP0659949A1 (de) 1995-06-28

Family

ID=12719477

Family Applications (2)

Application Number Title Priority Date Filing Date
EP95100996A Withdrawn EP0659949A1 (de) 1990-04-27 1991-04-24 Schachtbodenstück und Verfahren zur Herstellung von Betonformteilen, insbesondere Schachtbodenstücke
EP91106618A Expired - Lifetime EP0454098B1 (de) 1990-04-27 1991-04-24 Verfahren zur Herstellung von Schachtbodenstücken und Vorrichtung zur Durchführung des Verfahrens

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91106618A Expired - Lifetime EP0454098B1 (de) 1990-04-27 1991-04-24 Verfahren zur Herstellung von Schachtbodenstücken und Vorrichtung zur Durchführung des Verfahrens

Country Status (5)

Country Link
EP (2) EP0659949A1 (enrdf_load_stackoverflow)
JP (1) JPH045906U (enrdf_load_stackoverflow)
AT (1) ATE125744T1 (enrdf_load_stackoverflow)
DE (2) DE59106109D1 (enrdf_load_stackoverflow)
DK (1) DK0454098T3 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4209395A1 (de) * 1992-03-23 1993-09-30 Baumgaertner Maschf Gmbh Formeinrichtung zur Herstellung von Betonrohren
DE4415424C2 (de) * 1994-05-02 1997-05-15 Wuerschinger Gmbh & Co Baubetr Verfahren zur Herstellung eines rohrförmigen Betonformteils
DE19858934A1 (de) * 1998-12-08 1999-07-29 Lindenthal Ralf Dr Verfahren zur Herstellung von Schachtunterteilen aus Beton mit selbsttragenden Einbauten
FR2903335A1 (fr) * 2006-07-05 2008-01-11 Prefabrication Articles Ciment Dispositif de fabrication d'un regard en beton
KR100766850B1 (ko) * 2006-09-29 2007-10-17 박옥교 바닥콘크리트층에 의해 가압 고정되는 집수정 구조체 설치공정
CN107243984B (zh) * 2017-07-31 2023-02-03 重庆志谋科技有限公司 一种建筑构造柱成型设备的升降装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611287A (en) * 1924-05-23 1926-12-21 Asphalt Grave Vault Company Method of molding burial vaults and mold therefor
DE1263568B (de) * 1966-02-26 1968-03-14 Sven Arvid Konnberg Verfahren und Anordnung zum Herstellen geschlossener Kaesten aus Beton
GB2014227A (en) * 1978-02-10 1979-08-22 Shaw C B Improvements in Building Construction
DE3515986A1 (de) * 1985-05-03 1986-11-06 Georg Prinzing GmbH & Co KG Betonformen- und Maschinenfabrik, 7902 Blaubeuren Verfahren und vorrichtung zum herstellen von betonformteilen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE221921C (enrdf_load_stackoverflow) *
DE243186C (enrdf_load_stackoverflow) *
DE550679C (de) * 1929-09-27 1932-05-13 Ullrich Fritz Vorrichtung zur Herstellung allseitig geschlossener Hohlsteine aus Beton o. dgl.
GB1090841A (en) * 1964-11-05 1967-11-15 Walter Dickinson Method of and apparatus for making structural members
FR1591446A (enrdf_load_stackoverflow) * 1968-11-13 1970-04-27
FR2322243A1 (fr) * 1975-08-29 1977-03-25 Manuel Rene Procede de construction d'habitations formees de cellules juxtaposables
AU514036B2 (en) * 1977-03-29 1981-01-22 Castings & Forgings Pty. Ltd. Concrete Sewer manhole

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611287A (en) * 1924-05-23 1926-12-21 Asphalt Grave Vault Company Method of molding burial vaults and mold therefor
DE1263568B (de) * 1966-02-26 1968-03-14 Sven Arvid Konnberg Verfahren und Anordnung zum Herstellen geschlossener Kaesten aus Beton
GB2014227A (en) * 1978-02-10 1979-08-22 Shaw C B Improvements in Building Construction
DE3515986A1 (de) * 1985-05-03 1986-11-06 Georg Prinzing GmbH & Co KG Betonformen- und Maschinenfabrik, 7902 Blaubeuren Verfahren und vorrichtung zum herstellen von betonformteilen

Also Published As

Publication number Publication date
EP0454098A3 (en) 1992-01-08
DE4113752A1 (de) 1991-11-07
DK0454098T3 (da) 1996-01-02
EP0454098B1 (de) 1995-08-02
JPH045906U (enrdf_load_stackoverflow) 1992-01-20
EP0454098A2 (de) 1991-10-30
DE59106109D1 (de) 1995-09-07
ATE125744T1 (de) 1995-08-15

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