EP0512437A1 - Pièce de réservation - Google Patents

Pièce de réservation Download PDF

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Publication number
EP0512437A1
EP0512437A1 EP92107453A EP92107453A EP0512437A1 EP 0512437 A1 EP0512437 A1 EP 0512437A1 EP 92107453 A EP92107453 A EP 92107453A EP 92107453 A EP92107453 A EP 92107453A EP 0512437 A1 EP0512437 A1 EP 0512437A1
Authority
EP
European Patent Office
Prior art keywords
magnet
recess
magnets
recess device
suspension
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Withdrawn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
EP92107453A
Other languages
German (de)
English (en)
Inventor
Bernhard Kluthe
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.)
Mtk-Magnettechnik & Co KG GmbH
Original Assignee
Mtk-Magnettechnik & Co KG 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
Application filed by Mtk-Magnettechnik & Co KG GmbH filed Critical Mtk-Magnettechnik & Co KG GmbH
Publication of EP0512437A1 publication Critical patent/EP0512437A1/fr
Withdrawn legal-status Critical Current

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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
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • 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
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B28B7/002—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps using magnets
    • 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
    • B28B7/28—Cores; Mandrels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/063—Re-usable forms

Definitions

  • the invention relates to a reusable recess device for the production of precast concrete parts, with a recess body and at least one magnet attached in the area of the contact surface.
  • Recesses and holes are formed in precast concrete parts during the pouring process in that recess devices are previously placed on the base of the casting mold at the locations provided for the recesses or holes.
  • Such recess devices are known for example from DE-GM 1 851 961, DD-PS 234 635 and DE-OS 24 21 985. They have a recess body made of metal or plastic, which is provided with a fastening device for fixing the recess device on the base of the casting mold. Magnets are preferably used for the fastening device, which cooperate with the casting base made of a ferromagnetic material when the cut-out device is put in place and hold the cut-out device in place at the intended location even during the casting process.
  • the magnet or the magnets should be arranged as plane-parallel as possible and preferably flush with the mounting plane of the recess body. This is particularly difficult to achieve when the recess device has a plurality of magnets. Then there is the problem that not all magnets come to rest flat.
  • the invention is therefore based on the object of designing a recess device of the type mentioned at the outset in such a way that it is ensured that the magnet or the magnets lie flat against the recess body when the recess body is in the correct position, in particular when it lies against the casting base.
  • this object is achieved in that the magnet or the magnets is or are or are freely adjustable relative to the recess body in a limited range of motion.
  • the invention therefore provides a relative mobility between the magnet (s) and the recess body in such a way that the magnet (s) are plane-parallel, in particular flush with the latter, either because of their free mobility with respect to the mounting plane of the recess body can adjust or that such adjustment or adjustment is possible with appropriate adjustment means.
  • the recess body assumes a correct position after being attached to the casting base and that the magnet (s) lie against the entire surface, so that they can develop a high holding force.
  • a pure angular mobility of the magnet (s) can be sufficient. According to the invention, however, it is provided that the magnet is alternatively or even additionally held in a freely movable or adjustable manner perpendicular to the mounting plane. This allows an even better adjustment and a flush alignment of the magnet and mounting plane.
  • the magnet or magnets are preferably held on a suspension.
  • the magnet (s) can then be movable relative to the suspension, so that the suspension only defines the outer end point of the range of motion. So that this is also adjustable, the suspension should be adjustable in relation to the mounting level. This can be done, for example, by the suspension being designed as a supporting bolt or sleeve, which is adjustable via a nut screwed on from the top of the recess device and supported on it. By turning this nut, the support bolt is moved up and down, the respective magnet following this movement.
  • the magnet or the magnets is or are acted upon by at least one spring, preferably in the outward direction, ie downwards.
  • the magnet does not have to be held in a form-fitting manner by the supporting bolt, rather a support downwards is sufficient, the springs ensuring that the magnet concerned follows the movement of the suspension when it is adjusted downward. It is useful if several springs are provided for each magnet.
  • the recess device has a through-channel going from the top to the bottom with an internal thread, into which a forcing screw is screwed, which preferably has a handle at its upper end.
  • a forcing screw is screwed, which preferably has a handle at its upper end.
  • the through-channel can expediently pass through a central recess in one or more of the magnets, since this makes the push-off process easier.
  • the through-channel is expediently designed as a separate sleeve, the sleeve simultaneously being the suspension can form for the or one of the magnets. In this case, it is advisable that the sleeve has an annular web on the underside for the suspension of the magnet, on which the magnet is supported. The sleeve then simultaneously forms the support bolt in the above sense.
  • the magnet is inserted into a trough which is open at the bottom and is adapted to the shape of the magnet, it being possible for the connection between trough and ring magnet to be produced by gluing. In this case, it makes sense to support the magnet via the trough on the support device, in particular the support pin or the sleeve.
  • the invention is illustrated in more detail using an exemplary embodiment shown in vertical section. It shows a recess device with a recess body (1) with a flat top (2) and a likewise flat bottom (3).
  • the side surfaces (4, 5) are slightly inclined upwards in order to be able to better detach the recess body (1) from the precast concrete part.
  • the underside (3) of the recess body (1) has a circular recess (6) into which a metal trough (7) which is open at the bottom is inserted.
  • a ring magnet (8) is glued into the cavity formed by the metal trough (7), the outer surface of which is in contact with the inner wall of the metal trough (7).
  • a metal sleeve (9) is inserted into the recess body (1) coaxially with the metal trough (7) and the ring magnet (8).
  • the sleeve (9) has an annular web (10) in the lower area, the top of which rests on the underside of the metal trough (7), so that it is supported accordingly.
  • the sleeve (9) has an external thread (11) onto which a nut (12) is screwed.
  • the mother (12) sits on a heel within an upwardly open recess (13), whereby it does not protrude above the upper side (2).
  • the screw connection is set so that the magnet (8) and the metal tray (7) come to rest flush with the underside (3) of the recess body (1).
  • the sleeve (9) has an internal thread (14).
  • a forcing screw (15) is screwed into this internal thread (14), which also has an external thread (16) in the lower area for this purpose.
  • the forcing screw (15) protrudes upward from the recess body (1) and has a handle (17) at its upper end. With the help of this handle (17), the recess device is easy to handle, even if it is of a larger size.
  • the forcing screw (15) with the handle (17) can be removed for the casting process.
  • the recess device has a plurality of magnets, it is not necessary for each of the magnets to be assigned a forcing screw.
  • the sleeve (9) is replaced by a suitable hexagon socket screw inserted from below and screwed into the nut (12), the head of which then takes on the function of the ring land (10 ⁇ , on which the metal tray (7) then rests)
  • the Allen screw is only screwed so far into the nut (12) that this magnet - like the other magnets - comes to lie essentially flush with the underside (3) and at the same height as the other magnets.
  • helical springs Distributed over the circumference of the metal trough (7) are three helical springs designed as compression springs, of which only one, namely the helical spring (18), can be seen here.
  • the coil springs (18) each sit in a vertical blind hole (19) above the metal trough (7) and press it onto the ring web (10 ⁇ ). Otherwise, the upper opening is closed by a cover cap (20 ⁇ ).
  • the recess device (1) in the form shown is placed on the intended location on a base made of ferromagnetic material.
  • the ring magnet (8) ensures a firm hold during the casting process.
  • the recess device can be removed.
  • the forcing screw (15) is screwed further into the sleeve (9) so that it moves downwards.
  • the recess device is lifted off this base until the ring magnet (8) no longer exercises any liability. Then the recess device can be easily removed.
  • the recess body (1) otherwise consists of a cast polyethylene material, which has proven to be comparatively cheap and in particular resistant. However, other plastic materials with similar properties can also be used, e.g. Polyamide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP92107453A 1991-05-04 1992-04-29 Pièce de réservation Withdrawn EP0512437A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9105539U 1991-05-04
DE9105539U DE9105539U1 (de) 1991-05-04 1991-05-04 Aussparungskörper

Publications (1)

Publication Number Publication Date
EP0512437A1 true EP0512437A1 (fr) 1992-11-11

Family

ID=6867017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92107453A Withdrawn EP0512437A1 (fr) 1991-05-04 1992-04-29 Pièce de réservation

Country Status (2)

Country Link
EP (1) EP0512437A1 (fr)
DE (1) DE9105539U1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434894B2 (en) 1999-12-01 2002-08-20 Reymann Technik Gmbh Formwork for prefabricated concrete parts
US7021601B2 (en) * 2002-04-08 2006-04-04 Consolis Technology Oy Ab Dismountable casting mold side wall system
US7175153B2 (en) * 2001-12-06 2007-02-13 Bt Baubedarf Magdeburg Gmbh Positioning aid
CN101818565A (zh) * 2010-04-15 2010-09-01 陈鹏飞 预留孔洞的辅助工具
CN102493480A (zh) * 2011-12-15 2012-06-13 中国一冶集团有限公司 设备基础预留方孔可重复使用的模具
EP2662562A1 (fr) * 2012-05-11 2013-11-13 Siemens Aktiengesellschaft Appareil de montage conçu pour monter un objet sur une éolienne
CN105952150A (zh) * 2016-06-13 2016-09-21 苏州莲敬机械工程科技有限公司 一种便拆式建筑墙体孔道模具
CN110821170A (zh) * 2019-11-19 2020-02-21 中冶天工集团天津有限公司 一种手提式防渗漏的钢制套筒及其使用方法
CN111379413A (zh) * 2020-03-19 2020-07-07 杨文超 一种可变直径的建筑用孔洞预留装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19643009C1 (de) * 1996-10-18 1997-07-24 Ebawe Maschinenbau Gmbh Abstellerelement für Quer- oder Längsabstellungen zum Herstellen von plattenförmigen Betonfertigteilen
CN102140840B (zh) * 2011-01-25 2012-11-21 河南国基建设集团有限公司 一种变径重复使用建筑预留洞口装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1065043A (fr) * 1952-10-25 1954-05-19 Mecalectro Support magnétique perfectionné notamment pour comparateur
FR1291804A (fr) * 1961-03-31 1962-04-27 Forme à mouler
DE2323283A1 (de) * 1973-05-09 1974-11-28 Pfeiffer Fa Ed Vorrichtung zur befestigung in schalungen fuer betonfertigteile
DE2421985A1 (de) * 1974-05-07 1975-11-20 Mannesmann Leichtbau Gmbh Schalvorrichtung zum herstellen von aussparungen in betonfertigteilen
FR2538049A1 (fr) * 1982-12-17 1984-06-22 Sauveplante Francois Dispositif pour assembler, de maniere amovible, un element avec un autre dont l'un au moins est partiellement metallique
FR2570418A1 (fr) * 1984-09-19 1986-03-21 Laroche Jean Pierre Dispositif d'ecartement de coffrages metalliques et de creation de reservations dans des murs en beton en cours de construction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT217938B (de) * 1960-04-04 1961-10-25 Hugo Dipl Ing Mischek Formteil
US3136908A (en) * 1960-07-28 1964-06-09 Weinman James Adolf Plurally charged ion beam generation method
DD234635A1 (de) * 1985-02-13 1986-04-09 Bauwesen Ingbuero Veb Einlegeteile zur herstellung von kleinen aussparungen und durchbruechen
DE3629772A1 (de) * 1986-09-02 1988-03-03 Siegfried Fricker Formkoerper zur halterung eines ankers beim betonieren eines betonfertigteiles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1065043A (fr) * 1952-10-25 1954-05-19 Mecalectro Support magnétique perfectionné notamment pour comparateur
FR1291804A (fr) * 1961-03-31 1962-04-27 Forme à mouler
DE2323283A1 (de) * 1973-05-09 1974-11-28 Pfeiffer Fa Ed Vorrichtung zur befestigung in schalungen fuer betonfertigteile
DE2421985A1 (de) * 1974-05-07 1975-11-20 Mannesmann Leichtbau Gmbh Schalvorrichtung zum herstellen von aussparungen in betonfertigteilen
FR2538049A1 (fr) * 1982-12-17 1984-06-22 Sauveplante Francois Dispositif pour assembler, de maniere amovible, un element avec un autre dont l'un au moins est partiellement metallique
FR2570418A1 (fr) * 1984-09-19 1986-03-21 Laroche Jean Pierre Dispositif d'ecartement de coffrages metalliques et de creation de reservations dans des murs en beton en cours de construction

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434894B2 (en) 1999-12-01 2002-08-20 Reymann Technik Gmbh Formwork for prefabricated concrete parts
US7175153B2 (en) * 2001-12-06 2007-02-13 Bt Baubedarf Magdeburg Gmbh Positioning aid
US7021601B2 (en) * 2002-04-08 2006-04-04 Consolis Technology Oy Ab Dismountable casting mold side wall system
CN101818565A (zh) * 2010-04-15 2010-09-01 陈鹏飞 预留孔洞的辅助工具
CN101818565B (zh) * 2010-04-15 2011-08-10 陈鹏飞 预留孔洞的辅助工具
CN102493480A (zh) * 2011-12-15 2012-06-13 中国一冶集团有限公司 设备基础预留方孔可重复使用的模具
CN102493480B (zh) * 2011-12-15 2014-02-12 中国一冶集团有限公司 设备基础预留方孔可重复使用的模具
EP2662562A1 (fr) * 2012-05-11 2013-11-13 Siemens Aktiengesellschaft Appareil de montage conçu pour monter un objet sur une éolienne
CN105952150A (zh) * 2016-06-13 2016-09-21 苏州莲敬机械工程科技有限公司 一种便拆式建筑墙体孔道模具
CN110821170A (zh) * 2019-11-19 2020-02-21 中冶天工集团天津有限公司 一种手提式防渗漏的钢制套筒及其使用方法
CN111379413A (zh) * 2020-03-19 2020-07-07 杨文超 一种可变直径的建筑用孔洞预留装置

Also Published As

Publication number Publication date
DE9105539U1 (de) 1991-08-14

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