EP0128626A2 - Pièce d'espacement pour coffrages - Google Patents

Pièce d'espacement pour coffrages Download PDF

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Publication number
EP0128626A2
EP0128626A2 EP84200829A EP84200829A EP0128626A2 EP 0128626 A2 EP0128626 A2 EP 0128626A2 EP 84200829 A EP84200829 A EP 84200829A EP 84200829 A EP84200829 A EP 84200829A EP 0128626 A2 EP0128626 A2 EP 0128626A2
Authority
EP
European Patent Office
Prior art keywords
bush
cone according
shuttering
supporting element
cone
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Withdrawn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
EP84200829A
Other languages
German (de)
English (en)
Other versions
EP0128626A3 (fr
Inventor
Gerardus Van Rijn
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.)
Van Rijn Gerardus
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0128626A2 publication Critical patent/EP0128626A2/fr
Publication of EP0128626A3 publication Critical patent/EP0128626A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/065—Tying means, the tensional elements of which are threaded to enable their fastening or tensioning

Definitions

  • the invention relates to a cone as part of a spacer for concrete shutterings, which cone comprises a metal bush provided with an essentially continuous axial hole wherein there is formed a nut thread adapted to an associated screwed rod.
  • each of the cones is connected to a further screwed rod extending across the shuttering in question.
  • nuts which eventually press externally against the shuttering. This pressure is converted into pressure at the end face of the cone situated against the inside of the shuttering.
  • the cone consists of hardened concrete or a similar mortar, which cone contains an axial hole for receiving the screwed rods.
  • an internally threaded bush fixedly received in the cone material.
  • a supporting plate At the location where said bush leaves the cone at the end averted from the shuttering, there is attached a supporting plate on the periphery of the bush.
  • the two cones and the bushes which are received therein at that location along a part of their lengths, as well as the screwed rod connecting the two cones are eventually remaining, so called “permanent" elements in the completed concrete structure.
  • the further outer screwed rods screwed-in on either side during the setting-up and positioning of the shutterings, are removed from the shuttering after hardening of the poured concrete and the hole ends released at the two concrete outer faces are filled up with an aggregate.
  • a major further drawback consists in the risk that via the screw thread or nut thread of the first mentioned screwed rod and the bush in the cone and furthermore via the end portion of the axial hole traversing the cone adjoining the shuttering in question, moisture from the concrete penetrates during the pouring of a concrete wall. This leads in the first place to rusting of the screwed rods in the bush, which hampers disassembly during removal of the shuttering, and in the second place there is formed around the cone where most of the moisture is withdrawn from the concrete, an ugly spot at the exterior of the concrete shuttering formed as a result of the occurring dissociation of the concrete.
  • the actual supporting portion of the spacer is formed by the metal bush and the ring-shaped or cap-shaped supporting element resting against the cam-shaped portion on said bush.
  • a frusto-conical element of concrete or other mortar or of synthetic plastics or the like material in detachable fashion, but also a cylindrical sleeve of e.g. fibrous concrete can be employed.
  • Said sleeve-like elements only serve to meet the requirements set by the users in respect of the form and the choice of material for the spacers, but are not of essential interest for the proper functioning thereof.
  • the supporting element will either have only a sealing function or a combination of a sealing function and a supporting function.
  • the shell-shaped elements of the above described type remain in the concrete wall as "permanent" elements, the metal bush, however, can be easily recovered by either removing first the ring-or cap-shaped element and subsequently removing the bush by means of a suitable tool, or by removing the ring-or cap-shaped portion together with the bush as an integral unit by means of a suitable tool.
  • the remaining hole in the concrete wall can be sealed with mortar and, after a suitable choice thereof, will not exhibit a deviating appearance as compared with the rest of the wall.
  • the cone according to the invention also makes it possible to not only recover the metal bush but also the sleeve.
  • it is made of rubber or synthetic plastics hose.
  • This hose is connected to the bush through suitable means, thus automatically releasing the hose during unscrewing of the bush from the screwed rod after removal of the shuttering, or is pushed loosely around the bush, the hose being capable of removal out of the poured concrete wall with a suitable tool, after the unscrewing of the bush, which can always be effected easily due to the great flexibility of the hose.
  • the supporting element may be extended in such a way that the extended portion thereof lies around the outer-surface of the bush.
  • This other appearance is produced in that the concrete around the spacer is dissociated due to the leaking away of the concrete moisture towards the interior of the spacer, so that, after removal of the shuttering, there remains a region with excessive gravel and other solid concrete components, which region exhibits a deviating appearance and has less suitable properties which deviate from the rest of the wall.
  • Fig. 1 two cones are indicated with reference numeral 1, provided with cones 2 of concrete mortar, which cones are attached to one end of a screwed rod 6, while the cone end faces are averted from each other and the other end faces 4 face each other.
  • the concrete cones are attached in the manner hereinafter described around a metal bush, as indicated e.g. at 21 and 31 in Fig. 2 and 3, respectively.
  • At 5 is indicated an annular supporting element against which the cone 1 abuts with its end face facing towards the shuttering, which supporting element 5 contains a central round passage for the screwed rod 6 and which abuts with the end facing towards the cone against a cam-shaped raised portion formed at the circumference of the bush.
  • Each bush contains an axial continuous hole which e.g. is indicated in Fig. 2 at 27 and in Fig. 3 and 37.
  • the screwed rod 6 with both cones 1 attached thereto, each having a supporting element 5 is represented in the condition placed between two shutterings 10 in front of a concrete wall 11.
  • the two shutterings 10 link up against the outer end .faces of the bushes and the supporting elements provided thereon, which are indicated e.g. in Figs. 2 and 3 at 25, and 35, respectively.
  • the shutterings 10 and 11 are stiffened by an assembly of horizontal and vertical members, one of which being shown in Fig. 1 for each shuttering 10, i.e. one vertical member 15 and one horizontal member 16.
  • Screwed rods 14 are each inserted transversely through the assembly of horizontal members 16 and vertical members 15 and shutterings 10 in the outwardly oriented end of the bushes of the cones in question and subsequently screwed in said bushes. Subsequently, the nuts 17 are screwed on the ends of the further screwed rods 14 and via washers 18 tighten the shuttering construction disposed at the respective side, comprising the vertical members 15, the horizontal members 16 and the shuttering 10.
  • Each shuttering 10 thus eventually is supported against the end faces of supporting element 5.
  • the force exerted outwardly on the end face of each supporting element tries to displace said element inwardly over the bush in the direction towards the center of the screwed rod 6, which, however, is counter-acted by the presence of the cam-shaped raised portion on the bushes, so that the supporting element is compressed and forms a perfect seal between the front face of the bush and the shuttering against the inflow of concrete moisture.
  • F ig..2 shows in more detail a first embodiment of the cone according to the invention.
  • figure 22 indicates a concrete cone having a front face 23 and a rear face 24, and provided with a recess for receiving a metal bush 21 provided with an axial opening wherein a nut thread is provided that is adapted to coact with the screwed thread of a screwed rod 26 screwed along a part of the length of an axial opening 27 in the bush.
  • the rear face 24 of the concrete cones extends beyond the end of the metal bush and tightly falls around the circumference of the screwed rod, in order to counteract the inflow of concrete moisture along the back of the spacer.
  • a cam-shaped raised portion 28 against which rests an annular, synthetic plastics supporting element 25.
  • This supporting element preferably flares slightly towards the side facing towards the shuttering, so that the removal of the supporting element from the concrete wall formed is facilitated.
  • a further cam-shaped recess adapted to coact with a suitable tool so as to remove the metal bush from the screwed rod after removal of the shuttering. It is then not necessary to first remove the synthetic plastics supporting element, since the tool is adapted to directly engage with the cam 29 via the axial opening in said supporting element.
  • the circumference of the metal bush within the cone may be provided with suitable means, e.g. an 0-ring or another flexible element clampingly coacting with the inner circumference of the concrete cone, retaining the same in such a manner that the concrete cone is not easily displaced, but after removal of the shuttering, the bush can be removed though from the concrete cone.
  • suitable means e.g. an 0-ring or another flexible element clampingly coacting with the inner circumference of the concrete cone, retaining the same in such a manner that the concrete cone is not easily displaced, but after removal of the shuttering, the bush can be removed though from the concrete cone.
  • a thin rubber or synthetic plastics sleeve which prevents that any rust at the exterior of the metal bush hampers the removal thereof.
  • a rubber or synthetic plastics sleeve can be considered to be a disposable element, so that whenever the metal bush is used again, a new sleeve is provided thereover.
  • Fig. 3 is a cross-sectional view of a second embodiment of the cone according to the invention.
  • 31 indicates the metal bush, 32 a concrete cone having a front face 33 and a rear face 34.
  • Reference numeral 36 shows the screwed rod adapted to coact with a screw thread in the continuous axial opening 37 of the bush 31.
  • the bush 31 is provided at the front with a slotted opening 39 adapted to coact with a suitable tool.
  • a synthetic plastics supporting element 35 which tapers from the front facing towards the shuttering to the front face 33 of the concrete cone.
  • the circumferential portion of the bush 31 situated within the concrete cone adjacent the front face 33 thereof is reduced as far as the front face of the bush in such a manner that an annular extension of the supporting element 35 can fall between the inner circumference of the concrete cone and the outer circumference of the metal bush, while the rear wall of said extension supports against the cam-shaped portion.
  • the extended portion of the supporting element and the cam-shaped narrowing of the bush are dimensioned in such a manner that the inner circumference of the cone clampingly falls about the extension of the supporting element.
  • the pressure of the shuttering is directly transmitted onto the metal bush without pressure being exerted on the front face of the concrete cone.
  • the rear face of the concrete cone is enlarged, so that this can fall tightly around the screwed rod 36.
  • a cross plate may be welded onto the center of the shaft 36.
  • welding is not possible with a given steel quality for the rod 36.
  • a cross plate 40 provided on one, but preferably on two sides with a bush-shaped extension 41, which bush is provided with an axial hole falling about the screwed rod 36.
  • 0-rings or other suitable sealing rings or e.g. adhesive are received within the bush or bushes.
  • the opening at the back 34 of the cone 32 can also be formed during the pouring of thin walls in such a manner that this falls around the bush 41 and the back 34 rests against the plate 40. As a result, a proper moisture sealing and nevertheless a short spacer assembly can be realized.
  • Fig. 4 shows a different embodiment of the cone according to the invention, wherein the metal bush 51 is surrounded by a concrete cone 52.
  • the metal bush at the side facing towards the shuttering, is extended by a projecting portion 54 being integral with the bush.
  • a synthetic plastics cap 55 Around the projecting portion 54 there is provided a synthetic plastics cap 55 which ensures a proper sealing, while a larger abutting face for the shuttering is obtained by the projecting portion 54.
  • the bush 51 at the end adjacent the front of the cone situated therein, is provided with an annular groove within which is received an 0-ring 56, clampingly coacting with the inner surface of the cone.
  • a cam-shaped raised portion 58 At the threaded inner surface of the bush 51 there is provided a cam-shaped raised portion 58. Said cam 58 defines a fixed distance along which a screwed rod, such as 6 in Fig. 1, can be turned in the bush 51. As a result, it is ensured in the first place that always at the end of the bush facing towards the shuttering there is sufficient thread for turning in the further screwed rods extending outwardly of the shuttering, while it is ensured on the other end that at a given length of screwed rod, the front faces of the cones come to lie at a fixed distance.
  • the continuous opening in the bush 51 is preferably not entirely closed by the cam-shaped raised portion 58, so that any dirt can escape during the turning in of the screwed rods through the opening remaining between the cams.
  • Figs. 2, 3 and 5 are described in conjunction with a concrete cone, it will be clear that instead of concrete also other materials for forming a cone can be employed. It is also possible to use cylindrical tube elements of e.g. fibrous concrete. In such case the metal bush may be cylindrical, instead of the conical embodiment shown. It is likewise possible to place no sleeve-like element at all about the metal bush, so that the concrete mixture comes to lie directly against the outer face of the bush. The eventual choice depends on the specific application of the spacer and the preference of the user. In the embodiment shown in Fig. 5, the synthetic plastics cap 55 can be removed together with the bush 51 by engagement of a suitable tool with the e.g. hexagonal inside of the projecting portion 54.
  • a suitable tool with the e.g. hexagonal inside of the projecting portion 54.
  • Figs. 2-4 can be used in any combination with each other, while always a cone is produced that is formed in such a manner that a perfect seal between the shuttering and the front face of the metal bush is ensured and a sleeve possibly placed about the metal bush is not subjected to pressure forces during the placing and securing of the shuttering, since said pressure forces, whether or not via a ring-or cap-shaped supporting element, are directly transmitted to a metal bush screwed around a screwed rod.
  • Figs. 5, 6 and 7 show embodiments of cones wherein likewise the sleeve placed around the metal bush can be recovered, so that after the placing of the concrete wall, exclusively the screwed rod remains therein, which results in a further saving in cost.
  • Fig. 5 shows a metal bush 61 which slightly tapers from the side facing towards the shuttering, to facilitate its removal from the concrete wall.
  • a rubber or synthetic plastics hose 62 Around the bush 61 there is placed a rubber or synthetic plastics hose 62, the material and the thickness of the hose being chosen in such a manner that this properly abuts against the outer circumference of the bush.
  • the bush 61 at the end facing towards the shuttering, is provided with a reduced portion around which there is positioned a synthetic plastics cap 65 as supporting and sealing element, which preferably also slightly tapers from the side facing towards the shuttering. The rear face of the cap abuts against a cam 69.
  • the threaded axial longitudinal opening of the bush 61 is preferably again provided with cam-shaped raised portions 66, having the same function as the cam-shaped raised portion 58 in the embodiment shown in Fig. 4.
  • the synthetic plastics hose applied about the metal bush prevents the surface of the bush from rusting and facilitates the removal of the bush after dismantling.
  • the front of the bush naturally is again formed in such a manner that a tool can engage therewith.
  • the outer surface of the bush may for instance be fitted with a left-hand screw thread so that during the turning of the bush 61 off the screwed rod from the concrete wall formed, the synthetic plastics hose will be automatically entrained.
  • the outer surface of the bush 61 may also be flat, so that the sleeve 62 remains in the wall during the loosening of the bush from the screwed rod. Since the sleeve is highly flexible, this can thereafter be removed from the wall by means of tongs. It is also possible to place a cylindrical sleeve 62 about the tapering bush 61, while the inner surface of the sleeve is provided with ribs filling up the variable space between the inner surface of the sleeve and the outer surface of the bush. The cylindrical opening remaining in the concrete after removal of the cone may then for instance be filled up with a cylindrical plug.
  • hose applied around the metal bush is released from the concrete wall poured simultaneously with the bush, since the synthetic plastics cap is slightly extended rearwardly and the hose is clamped between the. inner surface of said extendec portion and the outer surface of the bush, while the front end of the hose extends over the cam 69.
  • the hose 62 also extends over the rear face of the bush 61 so as to entirely protect the same.
  • F ig. 7 shows a further embodiment of the cone shown in Figs. 5 and 6, which absolutely prevents penetration of moisture along the front of the bush between the sleeve and the outer circumference of the bush.
  • the figure again shows a bush 71 about which there is installed a rubber or synthetic plastics hose portion 72.
  • the bush is provided with a projecting portion 74 about which there is placed a synthetic plastics cap 75 which extends in longitudinal direction towards the back of the bush to beyond the recess.
  • the outer circumference of the bush 71 is provided adjacent the projecting portion with an annular groove 73 wherein a metal or synthetic plastics 0-ring is positioned.
  • the cap 75 tightly fits around the 0-ring, so that the sleeve 72 is pressed in the annular groove 73, so that a perfect seal is produced at the front between the bush and the sleeve.
  • annular groove there may also be provided an annular raised portion around which the cap 75 fittingly engages, with the sleeve being clamped between the cap and the raised portion, so that also a proper seal is obtained.
  • the front face of the cap 75 is slightly raised preferably along the circumference so as to realize a still better seal during the setting up of the shuttering.
  • the cap-shaped portion shown in Fig. 7 can naturally also be made of thicker material and have a more tapering design, with the cap rather showing the form of the supporting element shown in Fig.
  • metal bushes with cam-shaped raised portions such as 58 in Fig. 4 and 66 in Figs. 5 and 6, are used as stop for the screwed rod remaining in the concrete
  • a slight deviation in length between the various screwed rods and/or a not entirely identical positioning of the cams, such as 58 and 66, in the bushes may result in that the front faces of the bushes of different spacers are not entirely co-planar.
  • either the wooden shuttering will be deformed during the tightening of the nuts shown at 17 in Fig.
  • a supporting element which is adapted not only for axial displacement relative to the metal bush, so that it always abuts completely against the shuttering, but also is adapted for tilting movement relative to the front face of the bush, in order to compensate an oblique position of the bush relative to the shuttering.
  • a sleeve 82 is provided around a metal bush 81, which sleeve carries a supporting element 83 at the front, being integral therewith.
  • a metal ring 84 In the front face of bush 81 there are provided a plurality of axial bores wherein springs 85 are positioned. Between the front of the springs 85 and the rear face of the supporting element 83, there may be provided a metal ring 84 for uniformly distributing the compressive force of the springs 85. In the rest position, the supporting element 83 is slightly spaced apart from the front face of the bush 81 under the influence of the compressive force of the springs 85.
  • a clamping ring 96 rests adjacent the front of a metal bush 91.
  • Said clamping ring confines a cam-shaped portion 93 of a supporting element 92 between said ring and a cam-shaped thickening 94 on the periphery of bush 91.
  • a helical spring 95 biasing the cam 93 against the ring 96, while the supporting element projects along some distance to beyond the front face of bush 91.
  • the supporting element 92 has an extended rear portion which in the figure embraces the metal bush 91 partially, but also adapted to entirely embrace said bush as far as the rear face thereof.
  • Fig. 10 shows a variant of the embodiment shown in Fig. 9, wherein a supporting element 102 clampingly abuts around a reduced front portion 106 of a metal bush 101.
  • the supporting element 102 has a nick at the back, so that the cap can also fall entirely or partly over the thicker rear portion of the bush 101.
  • a helical spring 105 is situated between a cam 104 forming the transition between the thinner front portion and the thicker rear portion of bush 101 and the face 103 forming the boundary of the nick.
  • the supporting element can be moved in axial direction to the metal bushes and it can also be tilted slightly relatively to the front face thereof. Moreover, this embodimenthas the advantage that during the loosening of the shuttering, the supporting element, under the influence of the spring force, will spring outwardly from the concrete wall formed, thus facilitating the loosening of the cone from the concrete wall.
  • the caps 92 and 102 may be made of synthetic plastics material, but also of metal.
  • a metal bush 111 is provided with an annular groove 113 at the end facing towards the shuttering. This groove receives an end portion of a preferably metal cap-shaped supporting element 112.
  • the cap-shaped element is locked around the bush by means of a ring 115, while the bush is extended at the end facing towards the shuttering with a hexagonal nut portion 117 with which a tool can engage.
  • the cap-shaped portion 112 extends to beyond the front face of the nut portion 117 in such a manner that the shuttering can rest against the front of the cap-shaped portion 112, thus transferring the entire pressure of the shuttering to the metal bush.
  • the groove 113 between the cap-shaped element 112 and the metal bush in the embodiments shown in Figs. 11 and 12, receives a resilient rubber ring enabling the cap to be displaced relatively to the bush both in axial direction and to be tilted relatively to the bush.
  • a helical spring 119 is received in the groove 113 for the same purpose.
  • a continuous synthetic plastics sleeve which protects the bush and cap against contamination, and prevents dirt from penetrating into groove 113.
  • the sleeve at the front of the cap provides a still better seal between the cap and the shuttering.
  • the sleeve 118 need not continue entirely as far as the rear end of bush 111 but may terminate also a short distance beyond the groove 113.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP84200829A 1983-06-08 1984-06-08 Pièce d'espacement pour coffrages Withdrawn EP0128626A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8302048A NL8302048A (nl) 1983-06-08 1983-06-08 Afstandshouder voor een betonbekistingswand.
NL8302048 1983-06-08

Publications (2)

Publication Number Publication Date
EP0128626A2 true EP0128626A2 (fr) 1984-12-19
EP0128626A3 EP0128626A3 (fr) 1985-09-25

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Application Number Title Priority Date Filing Date
EP84200829A Withdrawn EP0128626A3 (fr) 1983-06-08 1984-06-08 Pièce d'espacement pour coffrages

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EP (1) EP0128626A3 (fr)
NL (1) NL8302048A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288583A1 (fr) * 1986-11-11 1988-11-02 Asahi Denka Kogyo Kabushiki Kaisha Dispositif empechant l'infiltration d'eau pluviale ou analogue au niveau d'une partie de separation dans une structure en beton
CH686196A5 (de) * 1992-09-30 1996-01-31 Giulio Albanese Distanzrohr.
EP0784134A1 (fr) * 1996-01-15 1997-07-16 Gerardus Van Rijn Système de coffrage
US6702247B2 (en) * 2001-07-31 2004-03-09 Fukuvi Usa, Inc. Tilt-up construction chamfers
WO2004029383A1 (fr) * 2002-09-26 2004-04-08 Mathies Gmbh Dispositif pour placer des banches a une certaine distance en face l'une de l'autre
DE202017103863U1 (de) * 2017-06-28 2018-10-01 Doka Gmbh Sperranker
DE202017103864U1 (de) * 2017-06-28 2018-10-01 Doka Gmbh Sperranker mit Verdrehsicherung
CN109537890A (zh) * 2019-01-25 2019-03-29 河北润林新材料科技有限公司 一种穿墙螺栓定位体系及建筑模板构筑方法
CN110374327A (zh) * 2019-07-20 2019-10-25 廖德全 一种用于混凝土现浇模具的拉杆组件及混凝土现浇模具
US20200123793A1 (en) * 2017-01-27 2020-04-23 Meva Schalungs-Systeme Gmbh Seal for a lead-through for a tie rod through a panel formwork element
CN114856186A (zh) * 2022-04-02 2022-08-05 广东天凛高新科技有限公司 一种模板快速定位锁紧和拆卸的对拉装置及其应用方法
CN115853266A (zh) * 2022-12-29 2023-03-28 中建八局第二建设有限公司 一种拉撑型防漏浆止水拉片

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE671826A (fr) *
GB1014941A (en) * 1963-01-23 1965-12-31 Eckhard Schuckhaus Improvements relating to nuts for shutter fixing devices
CH477615A (de) * 1966-12-27 1969-08-31 Sedlak Josef Spannvorrichtung für Betonschalungen
DE2422224A1 (de) * 1974-05-08 1975-11-13 Meyer Keller Noe Schalttech Spannelement fuer betonschalungen
DE2448817A1 (de) * 1974-10-14 1976-04-22 Erwin Foell Schalungskonus
DE2525184A1 (de) * 1975-06-06 1976-12-23 Otto Kettling Schraubenfabrik Verfahren zur herstellung einer wassersperre sowie die wassersperre selbst
DE2710184A1 (de) * 1977-03-09 1978-09-14 Walter Hoff Vorrichtung fuer einsatzkoerper im betonbau
NL7801844A (en) * 1978-02-17 1979-08-21 Gerardus Van Rijn Distance retainer for two coaxial cones on concrete wall - are formed on centre rod outer ends and pushed against stops
DE2921734A1 (de) * 1978-06-02 1979-12-06 Bredero Nv Stuetzfuss fuer den halter einer betonschalung
FR2466587A1 (fr) * 1979-10-02 1981-04-10 Laroche Jean Pierre Dispositif d'ecartement de coffrages et de creation de reservations dans des murs en cours de construction
DE3045312A1 (de) * 1979-12-03 1981-08-27 Rijn, Gerardus van, 3648 Wilnis Abstandshalterzusammensetzung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE671826A (fr) *
GB1014941A (en) * 1963-01-23 1965-12-31 Eckhard Schuckhaus Improvements relating to nuts for shutter fixing devices
CH477615A (de) * 1966-12-27 1969-08-31 Sedlak Josef Spannvorrichtung für Betonschalungen
DE2422224A1 (de) * 1974-05-08 1975-11-13 Meyer Keller Noe Schalttech Spannelement fuer betonschalungen
DE2448817A1 (de) * 1974-10-14 1976-04-22 Erwin Foell Schalungskonus
DE2525184A1 (de) * 1975-06-06 1976-12-23 Otto Kettling Schraubenfabrik Verfahren zur herstellung einer wassersperre sowie die wassersperre selbst
DE2710184A1 (de) * 1977-03-09 1978-09-14 Walter Hoff Vorrichtung fuer einsatzkoerper im betonbau
NL7801844A (en) * 1978-02-17 1979-08-21 Gerardus Van Rijn Distance retainer for two coaxial cones on concrete wall - are formed on centre rod outer ends and pushed against stops
DE2921734A1 (de) * 1978-06-02 1979-12-06 Bredero Nv Stuetzfuss fuer den halter einer betonschalung
FR2466587A1 (fr) * 1979-10-02 1981-04-10 Laroche Jean Pierre Dispositif d'ecartement de coffrages et de creation de reservations dans des murs en cours de construction
DE3045312A1 (de) * 1979-12-03 1981-08-27 Rijn, Gerardus van, 3648 Wilnis Abstandshalterzusammensetzung

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288583A1 (fr) * 1986-11-11 1988-11-02 Asahi Denka Kogyo Kabushiki Kaisha Dispositif empechant l'infiltration d'eau pluviale ou analogue au niveau d'une partie de separation dans une structure en beton
EP0288583A4 (fr) * 1986-11-11 1989-02-02 Asahi Denka Kogyo Kk Dispositif empechant l'infiltration d'eau pluviale ou analogue au niveau d'une partie de separation dans une structure en beton.
CH686196A5 (de) * 1992-09-30 1996-01-31 Giulio Albanese Distanzrohr.
EP0784134A1 (fr) * 1996-01-15 1997-07-16 Gerardus Van Rijn Système de coffrage
NL1002095C2 (nl) * 1996-01-15 1997-07-16 Gerardus Van Rijn Bekistingssysteem.
US6702247B2 (en) * 2001-07-31 2004-03-09 Fukuvi Usa, Inc. Tilt-up construction chamfers
US6929234B2 (en) 2001-07-31 2005-08-16 Fukuvi Usa, Inc. Tilt-up construction chamfers
WO2004029383A1 (fr) * 2002-09-26 2004-04-08 Mathies Gmbh Dispositif pour placer des banches a une certaine distance en face l'une de l'autre
US11047143B2 (en) * 2017-01-27 2021-06-29 Meva Schalungs-Systeme Gmbh Seal for a lead-through for a tie rod through a panel formwork element
US20200123793A1 (en) * 2017-01-27 2020-04-23 Meva Schalungs-Systeme Gmbh Seal for a lead-through for a tie rod through a panel formwork element
EP3421822A1 (fr) * 2017-06-28 2019-01-02 DOKA GmbH Ancrage bloquant doté d'une sécurité anti-rotation
DE202017103864U1 (de) * 2017-06-28 2018-10-01 Doka Gmbh Sperranker mit Verdrehsicherung
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CN109537890A (zh) * 2019-01-25 2019-03-29 河北润林新材料科技有限公司 一种穿墙螺栓定位体系及建筑模板构筑方法
CN109537890B (zh) * 2019-01-25 2023-10-13 河北润林新材料科技有限公司 一种穿墙螺栓定位体系及建筑模板构筑方法
CN110374327A (zh) * 2019-07-20 2019-10-25 廖德全 一种用于混凝土现浇模具的拉杆组件及混凝土现浇模具
CN114856186A (zh) * 2022-04-02 2022-08-05 广东天凛高新科技有限公司 一种模板快速定位锁紧和拆卸的对拉装置及其应用方法
CN114856186B (zh) * 2022-04-02 2024-03-19 广东天凛高新科技有限公司 一种模板快速定位锁紧和拆卸的对拉装置及其应用方法
CN115853266A (zh) * 2022-12-29 2023-03-28 中建八局第二建设有限公司 一种拉撑型防漏浆止水拉片
CN115853266B (zh) * 2022-12-29 2024-06-11 中建八局第二建设有限公司 一种拉撑型防漏浆止水拉片

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NL8302048A (nl) 1985-01-02

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