EP1842985A2 - Dispositif de liaison destiné à la liaison de deux éléments de coffrage - Google Patents

Dispositif de liaison destiné à la liaison de deux éléments de coffrage Download PDF

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Publication number
EP1842985A2
EP1842985A2 EP07005813A EP07005813A EP1842985A2 EP 1842985 A2 EP1842985 A2 EP 1842985A2 EP 07005813 A EP07005813 A EP 07005813A EP 07005813 A EP07005813 A EP 07005813A EP 1842985 A2 EP1842985 A2 EP 1842985A2
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EP
European Patent Office
Prior art keywords
connecting device
clamping
eccentric disc
formwork
elements
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Withdrawn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
EP07005813A
Other languages
German (de)
English (en)
Other versions
EP1842985A3 (fr
Inventor
Erhard Reichle
Jürgen Brecht
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.)
PPS Dietle International GmbH
Original Assignee
PPS Dietle International 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 PPS Dietle International GmbH filed Critical PPS Dietle International GmbH
Publication of EP1842985A2 publication Critical patent/EP1842985A2/fr
Publication of EP1842985A3 publication Critical patent/EP1842985A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements

Definitions

  • the present invention relates to a connecting device for connecting two formwork elements, preferably connecting bars or frame elements of a Stromschalungs- or a compassionschalungs system, with a support means, two clamping elements, at least one of which is pivotally mounted about a pivot axis, and an actuating device for pivoting the at least a clamping member, wherein the actuating device comprises at least one eccentric disc having a peripheral surface, which is rotatably mounted on the support means about a rotation axis.
  • a connecting device of the aforementioned type is for example made EP 0 369 197 A1 known.
  • the connection device specified therein serves two Formwork panels, the peripheral edge profiles, in particular hollow profiles, have to connect with each other.
  • connection device on two pivotally mounted clamping jaws, which are pivotable about the rotation of a lever.
  • This lever is equipped with an eccentric whose axis of rotation is parallel to the axis of rotation of the two jaws.
  • the eccentric portion is supported upon rotation of the lever on the support means of the connecting device, so that the pivotal mounting of the lever is displaced perpendicular to the formwork skin.
  • This pivot bearing is attached to legs of the two jaws, so that a movement of the pivot bearing leads to a pivoting of the clamping jaws.
  • connection device One of the disadvantages of this connection device is that the structural design is relatively complicated. In particular, a good fit of pivotal mounting and legs of the jaws is required. This structure is vulnerable, since contamination of the mutually running parts can lead to a functional impairment.
  • connection device a further disadvantage of this connection device is the fact that the lever for actuating the clamping jaws is sometimes difficult to reach. So the force must be applied to operate the lever in the small gap between the formwork skin and clamping lever. This is very difficult. The same applies to the opening of the connecting device. Also in this case, the construction worker can hardly resolve the force required to release by simple means, i. For example, only with a hammer, apply.
  • connection device In addition to this type of connection device, other connection devices are known in the art, for example EP 0 311 876 A2 , In the connecting device described therein, a wedge is used to pivot the jaws. This type of operation by means of wedge elements is the most common and also has disadvantages in terms of handling on the job site.
  • the connecting device consists of at least two parts, namely the connecting device as such and the wedge to be driven. Especially the wedges can be easily lost, which increases the cost of such a connection device. In addition, of course, the handling of several parts on the site is unfavorable.
  • the object of the present invention is to further develop the above-mentioned connection device so that it is easy to apply on the construction site and, moreover, is inexpensive.
  • connection device mentioned above in that the axis of rotation of the eccentric disc is perpendicular to the pivot axis and the peripheral surface of the eccentric cooperates with the clamping element, such that rotation of the eccentric disc leads to a pivoting of the clamping member.
  • This structure is structurally very simple and therefore inexpensive to produce. In addition, it is robust and not prone to contamination, so that a perfect function can be guaranteed even under adverse conditions.
  • the connecting device according to the invention is formed in one piece, so that the construction worker has to handle only a part.
  • the operation is particularly simple and fast, which leads to cost advantages, since the main task in the construction of frame formwork is to set the connectors and clamp.
  • the at least one eccentric disc has at least one projection which extends in the direction of the axis of rotation and is designed to be able to manually apply a torque to the eccentric disk.
  • a bar or generally a surface is provided, which extends forward and serves as a face for the construction worker.
  • a plurality of these projections are provided.
  • connection device that the construction worker even when setting a connection device close to the ceiling area without ladder or scaffolding manages, since he can reach the projection very well from the front. This is an essential difference to the hammering of wedges, which must be used from above.
  • the eccentricity of the eccentric disc is chosen so that a self-locking occurs when the eccentric clamps the clamping element on the formwork element.
  • one of the two clamping elements is fixedly attached to the carrier device, and the other clamping element is designed to be pivotable.
  • This measure has the advantage of a simple structural design and is used for connecting devices used for connecting frame members of a frame formwork system.
  • Frame formwork is the term used to describe formwork systems for walls and ceilings in which frame elements form the basis of the system on factory-welded frames including formwork.
  • the frame members are made, for example, of hollow profiles, which have notches, in which engage the clamping elements. To connect two frame members, the connecting device is placed on two adjacent profiles and clamped. Thus, the two frame elements are firmly connected.
  • the carrier formwork is a wall, column or slab formwork, which consists mostly of wooden formwork beams on which the formwork is attached.
  • the formwork carriers or carrier elements are connected to one another with the aid of locking elements or connecting bars.
  • both clamping elements are pivotally mounted on the support means and are provided two independently rotatably mounted eccentric discs, which are each associated with a clamping element.
  • connection device can be used to connect connection bars of a carrier formwork system.
  • the two clamping elements act together with fixed or detachable bolt on the connecting bolts of the support elements together.
  • connection device for carrier formwork systems A great advantage of this connection device for carrier formwork systems is that the operation is the same as in the previously mentioned connection devices for framed formwork systems. This makes operation very easy, especially for unskilled workers in construction. Operating errors that lead to a bad connection of two tie bars, thus hardly occur.
  • connection devices an element had to be inserted into the connecting bolt to be connected, which then connected the two connecting bolts to one another via the hammering in of various wedges.
  • the wedges had to be inserted differently because they had to absorb either tensile or compressive forces. The correct insertion of these wedges was rarely performed at the construction site.
  • connection device for carrier formwork systems has the advantage that only one component must be handled, which in particular shortens the time to set such a connection device.
  • connection bars to be connected are drawn during clamping to this stop surface, so that a desired alignment of the connecting bolt is possible.
  • the support means is designed to be extensible in order to change the distance between the two clamping elements can.
  • the carrier device has a recessed rod on which a portion of the support means carrying a clamping elements is slidably held, wherein the portion is provided with at least one nose, which cooperates with the recesses - in the clamped state.
  • connection device for carrier formwork systems is very easily adaptable to different circumstances. If, for example, greater distances between the connecting bars are required, the connecting device according to the invention can be adapted to this situation by "pushing apart" the two clamping elements or the corresponding elements of the carrier device.
  • the at least one eccentric disc on its peripheral surface on a radially inwardly extending recess.
  • This measure has the advantage that a "zero" position can be reached, in which the pivoting region of the clamping element is very large due to the recess provided, so that the setting of the connecting device is facilitated. This is advantageous especially for connecting devices for carrier formwork systems.
  • connecting devices are shown, which can be used for different formwork systems.
  • the most commonly used formwork systems are the frame formwork and the formwork.
  • the structure and operation of crizschalungs- and Immunschalungs systems are known in the art, so that the exact structure and operation at this point should not be discussed further.
  • frame formwork elements consist of a frame which is designed as a hollow profile on which the formwork is placed. Two formwork elements are connected by clamping the corresponding adjacent frame together.
  • Carrier formwork systems consist of support elements to which the formwork skin is attached, wherein connecting bars are mounted transversely to the parallel support elements. Depending on the application, the number of tie bars is set. The connection of formwork elements via the tie bars, which are aligned with each other and connected via connecting devices.
  • a connecting device also called shutter lock
  • This connection device 10 is designed for use in frame formwork systems. In other words, that the connecting device 10 serves to firmly connect two adjoining hollow sections of two frame formwork elements.
  • FIG. 2 such a frame formwork system is shown schematically, wherein the two formwork elements to be connected are identified by the reference numeral 50.
  • the two formwork elements 50 each having a frame 52 in the edge region, on which the formwork skin 53 is attached.
  • the frames 52 have recesses 54 which are used for clamping.
  • the linkage system 10 for frame formwork systems includes a support tube 12 having a rectangular cross-section. This can be clearly seen in FIG.
  • two jaws 14, 16 are mounted, wherein the jaw 14 (shown in the figure on the left) fixed and the other jaw 16 by means of a bolt 18 about an axis S pivotally mounted on the support tube 12.
  • Both jaws 14, 16 have two clamping surfaces 36, 38, between each of which a recess 39 is provided. This structure is known per se, so it need not be discussed further.
  • the pivotable clamping jaw 16 has a U-shaped construction with two legs 32 and a base 34 connecting them. From FIG. 1 it can be clearly seen that the base 34 lies below the supporting tube 12 and the two legs 32 are parallel to each other to the left Extend to the right of the support tube 12 upwards on the opposite side.
  • the other jaw 14 is constructed of two identical parts, which are fixedly attached to the left side and right side of the support tube, for example, welded.
  • an eccentric disk 20 is rotatably mounted about an axis D.
  • the axis D is perpendicular to the axis S of the clamping jaw 16. Furthermore, the axis D - in the installed state of the connecting device - perpendicular to the formwork skin 53 of the formwork element 50th
  • the eccentric disc 20 has a peripheral surface 22 which cooperates with the base 34 of the clamping jaw 16. That In other words, when turning the eccentric disc 20, the peripheral surface 22 comes into contact with the base 34 of the jaw 16 and then pivots about the axis S, so that the clamping surfaces 36, 38 of the two jaws 14, 16 are movable towards each other.
  • the eccentricity of the eccentric disc 20 is set so that - in the clamped state - enters a self-locking, so as to ensure that the eccentric disc 20 is not alone (for example due to shaking or vibration during concreting) rotates, thereby releasing the clamping.
  • the eccentricity must be adjusted so that the jaw 16 can be moved sufficiently close to the opposite jaw 14 and that it can be opened sufficiently wide to be able to place the connecting device 10 on the frame of the frame formwork elements to be connected.
  • the eccentric disc 20 has in the present embodiment, three spokes 24 which have projections 26 which protrude beyond the edge of the peripheral surface 22. These projections are designed so that they can serve as a clubface. Thus, it is possible that the construction worker on the construction site with a hammer to apply the torque required to rotate the eccentric disc 20 on the projections 26.
  • FIGS. 4 and 5 show another connecting device and are identified by the reference numeral 60.
  • this connection device 60 is used to connect connection bars of a carrier formwork system (shown for example in FIG. 7).
  • FIG. 7 shows connection bars of a carrier formwork system.
  • the operation is almost identical, so that same parts with are denoted by the same reference numerals. A detailed description of these parts can therefore be dispensed with.
  • the connecting device 60 for carrier formwork systems also works with an eccentric disc whose peripheral surface cooperates with a clamping jaw and can pivot about an axis S.
  • the connecting device 60 has a carrier element 80, which may be formed, for example, as a support tube. Of course, other shapes are also conceivable.
  • a carrier element 80 which may be formed, for example, as a support tube. Of course, other shapes are also conceivable.
  • each strip-shaped contact surfaces 68 are attached, which extend over the entire length.
  • the support member 80 carries two mirror-symmetrically arranged jaws 14, 16, which extend from the underside of the support member 80 upwards and terminate in a hook-shaped portion 64.
  • the two hook-shaped regions 64 face each other.
  • the two jaws 14, 16 are also pivotally held by bolts 18, wherein the pivot axis - in the installed state - parallel to the formwork 53 extends.
  • Both jaws 14, 16 have an actuating surface 66 which cooperates with the peripheral surface 22 of the associated eccentric disc 20.
  • a total of two eccentric discs 20 are rotatably mounted about an axis D to the support member 80, wherein the two eccentric discs 20 can not interfere with each other and are each associated with a jaw 14 and 16 respectively.
  • the associated jaw 14 and 16 can be pivoted about the axis S (bolt 18). The pivoting of the two jaws 14, 16 thus takes place independently of each other.
  • both eccentric discs 20 of the connecting device 60 also have projections 26 which serve as striking surfaces.
  • the two eccentric discs 20 of the connecting device 60 optionally have recesses 62 which are provided in the peripheral surface 22 and extend radially inwardly.
  • the dimension in the circumferential direction is adapted to the actuating surface 66 of the two clamping jaws 14, 16.
  • the recesses 62 serve to increase the possible pivoting range of the clamping jaws 14, 16 in order to allow a wide opening of the hook-shaped regions 64 in a "zero" position.
  • Both jaws 14, 16 have short lever-like extensions 65, which serve to be able to pivot the two jaws 14, 16 manually.
  • the two lever-shaped extensions 65 thus extend perpendicular to the axes of rotation D, which are formed by the bolts 18.
  • connection device 60 The operation of this connection device 60 will now be briefly explained below.
  • connecting bars are identified by the reference numeral 56.
  • bolts 58 are either fixed or releasably attached. It is therefore possible to easily adjust the previous connecting bolt 56 by attaching the bolt 58.
  • the connecting bars 56 have contact surfaces 59 which rest on the abutment surface 68 of the carrier element 80.
  • the two clamping jaws 14, 16 closed by pressing the two eccentric discs 20, whereby the hook-shaped portions 64, the bolts 58 and thus the connecting bolt 56 to attract.
  • the contact surfaces 59 of the two connecting bars 56 are consequently pressed onto the abutment surface 68 of the connecting device 60, so that an aligned alignment is achieved over this.
  • connection device 60 for carrier formwork systems is that the operation is very simple and not several parts, such as wedges, etc., are necessary.
  • operation of this connection device for carrier formwork systems corresponds to that of the connection device for frame formwork systems, so that the operation on the site for unskilled workers is even easier.
  • connection device 60 can be provided with an extension element with the aid of which the distance between the two clamping jaws 14, 16 can be adjusted to one another.
  • FIG. 6 shows an exemplary solution of such an extension element 70. It is understood, however, that other solutions are conceivable.
  • the extension element 70 comprises a rod 71, which has a corrugated edge surface 72 in its upper longitudinal region and may be part of the carrier element 80, for example.
  • This corrugated edge surface 72 cooperates with a correspondingly formed corrugated edge surface of an element 74, which runs parallel to the rod 71.
  • the two corrugated edge surfaces are displaceable relative to one another, wherein the element 74 is attached to the jaw 14 or 16, while the rod 71 is attached to the edge surface 72 on the support member 80, which is not shown in Fig. 6.
  • the two corrugated edge surfaces are slightly spaced from each other, a movement in the longitudinal direction is possible.
  • the element 74 is then brought with its corrugated edge surface into engagement with the corrugated edge surface 72 of the rod 71, so that locking takes place in the longitudinal direction.
  • both jaws 14, 16 are slidable longitudinally (i.e., toward each other). However, it may be sufficient if only one jaw is displaceable.
  • connection devices for frame formwork systems and girder formwork systems
  • connection devices use the same principle of operation, so that operation on the construction site is facilitated.

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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)
EP07005813A 2006-04-04 2007-03-21 Dispositif de liaison destiné à la liaison de deux éléments de coffrage Withdrawn EP1842985A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610016879 DE102006016879B4 (de) 2006-04-04 2006-04-04 Verbindungsvorrichtung zum Verbinden zweier Schalungselemente

Publications (2)

Publication Number Publication Date
EP1842985A2 true EP1842985A2 (fr) 2007-10-10
EP1842985A3 EP1842985A3 (fr) 2009-12-09

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EP07005813A Withdrawn EP1842985A3 (fr) 2006-04-04 2007-03-21 Dispositif de liaison destiné à la liaison de deux éléments de coffrage

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EP (1) EP1842985A3 (fr)
DE (1) DE102006016879B4 (fr)
RU (1) RU2383702C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA010046B1 (ru) * 2007-06-25 2008-06-30 Общество С Ограниченной Ответственностью "Монолитстройформ" Модульная опалубка и замок для ее сборки
EP3918210A4 (fr) * 2019-01-30 2022-10-12 Urtim Kalip Ve Iskele Sistemleri Sanayi Ve Ticaret Anonim Sirketi Mécanisme de verrouillage pour systèmes de coffrage de panneaux

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517306A1 (de) * 1985-05-14 1986-11-20 Hünnebeck GmbH, 4030 Ratingen Vorrichtung zum ausrichten nebeneinander angeordneter schalungselemente
EP0311876A2 (fr) * 1987-10-10 1989-04-19 Gerhard Dingler Composition pour coffrages préfabriqués
EP0369197A1 (fr) * 1988-11-12 1990-05-23 Maier, Josef Crampon pour connecter des panneaux de coffrage
DE9102391U1 (de) * 1991-02-28 1991-05-16 NOE-Schaltechnik Georg Meyer-Keller GmbH + Co, 7334 Süßen Zwinge, insbesondere zur Verbindung zweier Schaltafeln
DE19544548A1 (de) * 1995-11-29 1997-06-05 Meyer Keller Noe Schalttech Spannzwinge für Schalungselemente

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517306A1 (de) * 1985-05-14 1986-11-20 Hünnebeck GmbH, 4030 Ratingen Vorrichtung zum ausrichten nebeneinander angeordneter schalungselemente
EP0311876A2 (fr) * 1987-10-10 1989-04-19 Gerhard Dingler Composition pour coffrages préfabriqués
EP0369197A1 (fr) * 1988-11-12 1990-05-23 Maier, Josef Crampon pour connecter des panneaux de coffrage
DE9102391U1 (de) * 1991-02-28 1991-05-16 NOE-Schaltechnik Georg Meyer-Keller GmbH + Co, 7334 Süßen Zwinge, insbesondere zur Verbindung zweier Schaltafeln
DE19544548A1 (de) * 1995-11-29 1997-06-05 Meyer Keller Noe Schalttech Spannzwinge für Schalungselemente

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA010046B1 (ru) * 2007-06-25 2008-06-30 Общество С Ограниченной Ответственностью "Монолитстройформ" Модульная опалубка и замок для ее сборки
EP3918210A4 (fr) * 2019-01-30 2022-10-12 Urtim Kalip Ve Iskele Sistemleri Sanayi Ve Ticaret Anonim Sirketi Mécanisme de verrouillage pour systèmes de coffrage de panneaux

Also Published As

Publication number Publication date
RU2007112227A (ru) 2009-02-27
RU2383702C2 (ru) 2010-03-10
DE102006016879B4 (de) 2009-04-09
EP1842985A3 (fr) 2009-12-09
DE102006016879A8 (de) 2008-01-17
DE102006016879A1 (de) 2007-10-18

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