EP1646757B1 - Dispositif de serrage comprenant une clavette guidee de maniere oblique - Google Patents

Dispositif de serrage comprenant une clavette guidee de maniere oblique Download PDF

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Publication number
EP1646757B1
EP1646757B1 EP04762336.8A EP04762336A EP1646757B1 EP 1646757 B1 EP1646757 B1 EP 1646757B1 EP 04762336 A EP04762336 A EP 04762336A EP 1646757 B1 EP1646757 B1 EP 1646757B1
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EP
European Patent Office
Prior art keywords
wedge
turnbuckle
guiding direction
claws
turnbuckle device
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.)
Not-in-force
Application number
EP04762336.8A
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German (de)
English (en)
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EP1646757A1 (fr
Inventor
Artur Schwörer
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Peri GmbH
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Peri GmbH
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Publication of EP1646757A1 publication Critical patent/EP1646757A1/fr
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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
    • 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
    • E04G17/045—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements being tensioned by wedge-shaped elements
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7062—Clamped members

Definitions

  • the invention relates to a turnbuckle device for clamping concrete formwork elements, with two claws and a wedge, wherein the claws are displaceable in a clamping direction against each other, wherein the wedge is guided in the turnbuckle device along a wedge guide direction, and wherein the amount of propulsion of the wedge in the turnbuckle device determines the displacement of the claws.
  • a generic turnbuckle device is for example from the DE 35 45 273 A1 known.
  • the DE 35 45 273 A1 discloses a turnbuckle device according to the preamble of claim 9, the wedge of which has a constant size along the wedge guiding direction, ie the wedge has a constant cross section in the wedge guiding direction.
  • the EP 0 537 403 A1 a turnbuckle device whose wedge is guided in the clamping direction.
  • Concrete formwork elements are used to erect boundaries for concrete bodies to be cast, such as building walls. In order to obtain pourable boundaries, usually several concrete formwork elements must be firmly connected. Turnbuckles are used to connect the concrete formwork elements.
  • the concrete formwork elements consist essentially of a formwork, a frame and bracing to stabilize the frame.
  • the turnbuckles are arranged in the area of crossings of struts and frames.
  • a claw of a turnbuckle engages around a frame portion of two concrete shell elements to be connected, and by means of a wedge, the two claws - and thus the concrete shell elements - braced against each other, ie the claws are moved towards each other in a clamping direction and into each other.
  • turnbuckle devices In order to clamp interfaces of two adjacent concrete formwork elements that experience particularly large forces (such as articulated corners or outside corners), a plurality of turnbuckle devices are used at the same time adjacent.
  • the turnbuckle devices are then typically arranged on a straight line (eg, one below the other), with parallel clamping movements of the claws and parallel, on a single straight line occurring movements of the wedges during clamping.
  • the turnbuckle devices must be spaced apart by at least one keying length (that is, the extension of a wedge in the direction of the wedge guidance direction when the wedge is arranged in a turnbuckle device). This limits the number of turnbuckle fixtures that can be used to secure an interface between two adjacent concrete formwork members.
  • Object of the present invention is in contrast to present a turnbuckle device in which a disability of adjacently arranged turnbuckle devices can be avoided by their wedges even with a small spacing of the turnbuckle devices.
  • turnbuckle device with the features of claim 1 and by a turnbuckle device with the features of claim 9.
  • the turnbuckle devices according to the subclaims represent preferred embodiments of the invention.
  • Spannschvoriquesen span a typically straight border line between the concrete formwork elements.
  • the turnbuckle devices are arranged side by side or one above the other on a straight line which runs parallel to this boundary line, the bracing movements of the clamps of the turnbuckle devices running parallel to one another. Due to the fact that the wedge guidance direction according to the invention does not run perpendicular to the clamping direction, the wedges with their longitudinal directions are no longer all located on a single straight line.
  • the propulsion of the wedges is done differently than in the prior art not for all wedges along that single line, but the propulsion takes place for each wedge on its own line. This opens up movement space for the wedges.
  • the distance between their own straight lines is dependent on the angle ⁇ and the spacing of the turnbuckle devices. According to the invention, the distance of each own straight line chosen so that this at least one diameter of a wedge (possibly the maximum diameter of a wedge) holds, so that it can come to no contact with the wedges more.
  • the turnbuckle device according to the invention is characterized in that the angle ⁇ is between 40 ° and 85 °, in particular approximately 70 °. These angular ranges are particularly suitable for wedge dimensions and concrete formwork dimensions that are currently in use. Also, the securing effect of gravity is still sufficient.
  • the turnbuckle device can be equally well used both for connecting horizontally adjacent and vertically adjacent concrete formwork elements, ie the turnbuckle can be equally well operated with horizontal or vertical clamping direction.
  • the wedge is guided by one of the claws alone. This simplifies the guidance of the wedge.
  • the angle ⁇ can then be set very accurately.
  • An alternative embodiment of the turnbuckle device according to the invention provides that the wedge has at least one depression and / or elevation, which runs obliquely to the wedge guidance direction, and that at least one of the claws has a profile which engages a recess and / or elevation of the wedge.
  • the profile may be formed, for example, as a row of teeth.
  • Such a profiled turnbuckle devices can be designed in a wide range of ratios (propulsion against Verspannweg) become; In particular, they can also be configured well for angles ⁇ less than or equal to 45 °.
  • the wedge has a tapered cross-section along the wedge-guiding direction.
  • the wedge thus decreases in width in the direction of advance.
  • Turnbuckle devices that rely on the effect of the variable outer dimension of the wedge are mechanically very simple and therefore inexpensive.
  • a further development of the embodiment with a profiled turnbuckle device is advantageously designed so that the wedge has a constant size along the wedge-guiding direction, in particular a constant diameter.
  • the wedge thus maintains its width along the advancing direction. This simplifies the guidance of the wedge in the turnbuckle device considerably, and the angle ⁇ can be adjusted particularly easily and accurately.
  • the turnbuckle device can be arranged for mounting on inner corner corners or outer corner corners or right-angled outer corners of concrete formwork elements. At these positions, particularly great forces are to be expected on the concrete formwork elements, so that the tensioning means to be used must be particularly efficient.
  • a large number of turnbuckle devices can be mounted at a close distance from each other, so that even large forces can be handled.
  • a concrete formwork system comprising concrete formwork elements and turnbuckle devices according to the invention of the type described above, the concrete formwork elements each having a plurality of mounting positions, in particular struts, for the turnbuckle devices, wherein the mounting positions from each other in a direction perpendicular to the Verspannraum at the mounting positions to be mounted turnbuckle devices are spaced at a distance A, characterized in that for the angle ⁇ : ⁇ ⁇ 90 ° - arcsin (B / A), with B: greatest width of the wedge measured transversely to the wedge guide direction and in the plane of the wedge guide direction and clamping direction.
  • the wedges can be moved independently in or against the wedge guide direction independently, without the wedges could collide.
  • the ends of the wedges are also easily accessible to a fitter.
  • the advantages of the invention are particularly effective if the distance A is less than or approximately equal to the length L of a wedge.
  • the concrete formwork system according to the invention is the only way to make the wedges and the turnbuckle devices usable and usable at this distance.
  • Particularly preferred is a combination of the concrete shuttering system according to the invention with the embodiment of the turnbuckle devices in which ⁇ ⁇ 90 ° arctan (B / L). In this case overlap the lengths of the wedges not adjacent to each other, so that a particularly simple installation of the turnbuckle devices due to the free access is possible.
  • the clamping direction and the wedge guiding direction are typically parallel to the planes of the formwork skins of the concrete formwork elements when the formwork skins have a common plane.
  • the angle ⁇ '> 0 ° can also prevent a collision of wedges of adjacent turnbuckle devices.
  • the range of motion for the wedges is limited by the back of the formwork facing the turnbuckle device.
  • FIG. 1a shows the tension of two concrete formwork elements 1 and 2, which form a rectangular outer corner, with turnbuckle devices 3, 4, 5 according to the prior art.
  • the first concrete formwork element 1 has a vertical, to the plane of FIG. 1a parallel facing. At a frame portion 6, the first concrete formwork element 1 abuts with an interface on the second concrete formwork element 2. From the interface is in FIG. 1a only a borderline 7 visible.
  • the second concrete formwork element 2 has a vertical, vertically extending into the plane of the formwork facing. It abuts with a frame section 8 to the interface and thus to the boundary line 7 at.
  • the boundary line 7 is covered by the three turnbuckle devices 3, 4, 5.
  • the turnbuckle devices 3, 4, 5 are arranged on horizontally extending struts of the concrete formwork elements 1, 2.
  • Each turnbuckle device 3, 4, 5 has a left-side first claw 9a, 9b, 9c, which respectively engages in the frame section 6, and a right-side second claw 10a, 10b, 10c, which surrounds the frame section 8.
  • a vertically oriented wedge 11 a, 11 b, 11 c By means of a vertically oriented wedge 11 a, 11 b, 11 c, the claws 9a-9c, 10a-10c in the horizontal direction can be braced relative to each other (Verspannraum). If the wedges 11 a, 11 b, 11 c driven down into the associated turnbuckle devices 3, 4, 5, the concrete formwork elements 1, 2 are contracted. In order to solve the wedges 11 a, 11 b, 11 c, they must be moved upwards.
  • the possibilities of movement of the wedges 11 a, 11 b, 11 c are limited by the fact that all wedges 11 a, 11 b, 11 c are moved on a single straight line.
  • the middle wedge 11b may be displaced up or down by only about one quarter of a wedge without encountering another wedge 11a or 11c.
  • the wedge 11b can not be completely pulled out to release the claws 9b, 10b from each other.
  • the small distance to the adjacent wedges 11 a, 11 c in the direction of movement of the wedge 11 b, ie in the vertical wedge guide direction here also hinders the application of a tool for bracing (loosening) or loosening of the wedge 11 b.
  • the wedges 11 a, 11 b, 11 c can handle despite the unfavorable angle of attack and / or access to the wedge ends.
  • FIG. 1b shows the same concrete formwork elements 1, 2, which are now connected to three turnbuckle devices 12, 13, 14 according to the invention.
  • the turnbuckle devices 12, 13, 14 each have a left-side first claw 15a, 15b, 15c and a right-side second claw 16a, 16b, 16c.
  • the tension of the claws 15a, 15b, 15c, 16a, 16b, 16c is in each case adjustable by a wedge 17a, 17b, 17c.
  • the wedges 17a, 17b, 17c have a wedge-guiding direction (i.e., a translation direction in the respective turnbuckle device 12, 13, 14) obliquely downward.
  • the horizontal clamping direction and the wedge-guiding direction include an angle ⁇ of less than 90 °, namely approximately 70 °.
  • angle ⁇ the signs of the tensioning direction and the wedge guidance direction are disregarded, and only the smaller of the included angles at an intersection of the two directional lines determined by the directional vectors is regarded as angle ⁇ .
  • All three wedges 17a, 17b, 17c can be moved in accordance with their wedge-guiding direction, without obstructions being caused by the wedges 17a, 17b, 17c of adjacent turnbuckle devices 12, 13, 14.
  • FIG. 2 shows an embodiment of a turnbuckle device 20 according to the invention similar to the turnbuckle devices of FIG. 1b in a vertical cross-section.
  • the turnbuckle device 20 comprises a left-side first claw 21, a right-side second claw 22, and a wedge 23.
  • the two claws 21, 22 guide each other to allow a relative movement of the claws 21, 22 in the horizontal direction, namely the clamping direction 34 ,
  • the wedge 23 is guided in the second claw 22 by means of two openings 24, 25 in a wedge-guiding direction 33.
  • the claws 21, 22 have legs 26, 27, 28, 29, with which they can rest on braces of concrete formwork elements and frame sections of concrete formwork elements can engage or engage in these.
  • the first claw 22 has a profiled portion 30 which is configured with a series of teeth 31.
  • the teeth 31 are inclined against the clamping direction 34 by an angle ⁇ .
  • the wedge 23 has a plurality of grooves 32, which are also inclined against the clamping direction 34 by an angle ⁇ .
  • the inclination of the teeth 31 is thus the groove profile of the wedge 23 (ie the relative inclination of the grooves 32 to a propulsion direction 33 of the wedge 23) and the inclination of the wedge 23 in the turnbuckle device 20 (ie the angle ⁇ ) adapted.
  • the spacing of the grooves 32 is adapted to the spacing of the teeth 31.
  • FIGS. 3a to 3e explain the geometric conditions on turnbuckle devices.
  • the turnbuckle devices are each shown in a highly schematic manner by a projection of the respective wedge is particularly highlighted on a vertical plane, while the claws are shown only as a dashed rectangle.
  • the long sides of the dashed rectangle run parallel to the clamping direction, the short sides run parallel to the direction of the boundary line of concrete formwork elements to be spanned.
  • FIG. 3a shows the limiting case of a possible arrangement of turnbuckle devices 30a, 30b, 30c with wedges 31 a, 31 b, 31 c according to the prior art in a clamped position.
  • the wedges 31 a, 31 b, 31 c extend all on a straight line, namely the vertical straight line connecting the centers 32a, 32b, 32c of the turnbuckle devices 30a, 30b, 30c.
  • the term midpoint refers primarily to the center of the Pratzen Schemes and the center of the wedges in the illustrated braced position.
  • a problem with the arrangement of the prior art is that the wedges 31a, 31b, 31c mutually block their movement along their wedge-guiding direction, which coincides with the direction of the longitudinal extension of the wedges 31a, 31b, 31c. This is because the ends of the wedges 31a, 31b, 31c contact each other when assembled (or have a negligible distance compared to the length of a wedge).
  • FIG. 3b shows the arrangement after pivoting about the minimum, meaningful pivot angle.
  • This pivoting is of course associated with a redesign of the turnbuckle devices, which in FIG. 3b now designated 35a, 35b, 35c. They are still strung on a vertical connecting line defined by centers 36a, 36b, 36c of the turnbuckle devices 35a, 35b, 35c, but the directions of movement of the wedges 37a, 37b, 37c are now parallel to each other.
  • the required space of each wedge 37a, 37b, 37c for wedge-guiding direction movements does not overlap with the required space for movements of another wedge 37a, 37b, 37c, nor the location of another wedge 37a, 37b, 37c.
  • the wedges 37a, 37b, 37c have in the illustrated braced state of the arrangement of Fig. 3b at their left lower and right upper corners punctual contact with each other, and can just slide past each other in movements in Keil arrangementscardi. At best, the positions of the claws 38a, 38b, 38c limit the movements of the wedges 37a, 37b, 37c.
  • Figure 3c shows a section FIG. 3b to determine a suitable pivoting angle ⁇ for obtaining the arrangement of FIG. 3b to illustrate.
  • the wedge 37b touches in vertex E the adjacent wedge 37c.
  • the right edge of the wedge 37b lies in the extension of the left edge of the wedge 37c, so that the wedge 37b would just slide past the wedge 37c with a displacement to the top left in the wedge guiding direction.
  • the wedges 37a, 37b, 37c all have a width B and a length L.
  • a central axis 40 of the wedge 37b running in the wedge-guiding direction (as well as the center axes of the remaining wedges 37a, 37c) must be rotated by an angle ⁇ against a vertical connecting straight line 41 of the centers of the wedges 37a, 37b, 37c.
  • the central axis 40 passes through the center M of the wedge 37b and the head K, which is in the middle of the upper short side of the wedge 37b is located.
  • the ratio of the line length KE to the line length KM defines the tangent of ⁇ .
  • the angle ⁇ represents the supplementary angle of the angle ⁇ to 90 °, because ⁇ runs as an angle between the clamping direction (here the horizontal 42) and the wedge guide direction (here represented by the central axis 40).
  • ⁇ 90 ° arctan (B / L).
  • FIGS. 3b and 3c assumes that the wedges in the assembled state should not overlap along their length, not even side by side. Although this avoids danger spots, wear and problems with manufacturing tolerances of the turnbuckle device according to the invention, but is not a mandatory requirement for the described invention.
  • the turnbuckle devices 44a, 44b, 44c according to the invention, have the same width and the same mounting distance of their centers 45a, 45b, 45c and the same inclination of their wedges 46a, 46b, 46c as the arrangement of FIG. 3b , Only the length of the wedges 46a, 46b, 46c is greater than in the arrangement of FIG. 3b , Nevertheless, the wedges 46a, 46b, 46c have room for any movements along their wedge-guiding direction, which in particular is not restricted by the adjacent wedges 46a, 46b, 46c. In this case, the wedges 46a, 46b, 46c in the illustrated limit case slide straight on the adjacent wedges, which represents the largest inventive, meaningful angle ⁇ between the clamping direction and the wedge guiding direction.
  • the space for movements of the wedges depends on the width of the wedges 46a, 46b, 46c, on the mounting distance of the turnbuckle devices according to the invention with the wedges 46a, 46b, 46c guided obliquely therein and on the angle ⁇ .
  • FIG. 3e shows a section 3d figure and serves to illustrate the largest possible reasonable angle ⁇ according to the invention or the smallest possible meaningful pivoting angle ⁇ in the case of wedge lengths greater than the mounting distance of the turnbuckle devices.
  • the turnbuckle devices 44b, 44c are lined up on a connecting straight line 47, which is defined by the centers 45b and 45c of the wedges 46b, 46c in the bracing position or also as centers 45b and 45c of the associated bracing regions.
  • the connecting line 47 intersects an interface between the wedges 46b and 46c at the point of intersection S.
  • the intersection point S is halfway along the line connecting the centers 45b and 45c.
  • the distance between the center points 45b and 45c (and thus the distance between the turnbuckle devices 44b, 44c in the direction perpendicular to the clamping direction and in the direction parallel to the boundary line of the concrete formwork elements to be connected) is A.
  • the width of the wedges 46b, 46c measured perpendicular to the wedge guidance direction is B.
  • Wedge 46b has a central axis 48 which extends along the wedge-guide direction at half the width of wedge 46b.
  • An auxiliary line 49 runs perpendicular to the central axis 48 and intersects the intersection S.
  • the intersection of the auxiliary line 49 with the central axis 48 is referred to as the inner point I of the wedge 46b.
  • the triangle MIS is considered. M equals 45b.
  • the ratio of the lengths of the distances IS to SM defines the sine of ⁇ .
  • Track length IM track length SM.
  • the advantages of the invention can be achieved in any case, if the width of the wedge in the sense of the above considerations, the largest occurring width is used on the wedge. In certain cases, however, an average width can also be used.

Claims (13)

  1. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) dévolu au serrage d'éléments (1, 2) de coffrage de bétonnage, comprenant deux griffes (15a, 15b, 15c, 16a, 16b, 16c ; 21, 22) et un coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c), lesdites griffes (15a, 15b, 15c, 16a, 16b, 16c ; 21, 22) pouvant être mutuellement déplacées dans une direction (34) de serrage en tension, ledit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) étant guidé le long d'une direction (33) de guidage dudit coin, dans le dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c), et la course d'avance dudit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c), dans ledit dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c), déterminant le déplacement desdites griffes (15a, 15b, 15c, 16a, 16b, 16c ; 21, 22),
    caractérisé par le fait
    que la direction (33) de guidage du coin et la direction (34) de serrage en tension décrivent un angle α mesurant entre 40° et 85°, approximativement 70° en particulier, une gêne réciproque de dispositifs tendeurs (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) occupant des positions voisines pouvant être évitée par les coins (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) de ces derniers, également en présence d'un faible espacement desdits dispositifs tendeurs (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c).
  2. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon la revendication 1, caractérisé par le fait que l'angle α mesure approximativement 45°.
  3. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon l'une des revendications précédentes, caractérisé par le fait que l'angle α obéit à la relation α ≤ 90 ⁢ ° - arctan B / L ,
    Figure imgb0011
    dans laquelle L : longueur du coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) dans la direction (33) de guidage dudit coin, et B : largeur maximale dudit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) mesurée transversalement par rapport à ladite direction (33) de guidage du coin, et dans le plan de ladite direction (33) de guidage du coin et de la direction (34) de serrage en tension.
  4. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon l'une des revendications précédentes, caractérisé par le fait que le coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) est guidé par l'une seulement (22) des griffes.
  5. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon l'une des revendications précédentes, caractérisé par le fait que le coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) présente au moins une creusure et/ou une protubérance s'étendant à l'oblique vis-à-vis de la direction (33) de guidage dudit coin ; et par le fait qu'au moins l'une des griffes (15a, 15b, 15c ; 21) offre un profil pénétrant dans ladite creusure et/ou ladite protubérance dudit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c).
  6. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon l'une des revendications précédentes, caractérisé par le fait que le coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) présente une section transversale s'amenuisant le long de la direction (33) de guidage dudit coin.
  7. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon la revendication 5, caractérisé par le fait que le coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) offre une taille constante le long de la direction (33) de guidage dudit coin.
  8. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon l'une des revendications précédentes, caractérisé par le fait que ledit dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) peut être agencé en vue du montage sur des cornières d'articulation intérieure ou des cornières d'articulation extérieure, voire des cornières extérieures orthogonales d'éléments (1, 2) de coffrage de bétonnage.
  9. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) dévolu au serrage d'éléments (1, 2) de coffrage de bétonnage, comprenant deux griffes (15a, 15b, 15c, 16a, 16b, 16c ; 21, 22) et un coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c), lesdites griffes (15a, 15b, 15c, 16a, 16b, 16c ; 21, 22) pouvant être mutuellement déplacées dans une direction (34) de serrage en tension, ledit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) étant guidé le long d'une direction (33) de guidage dudit coin, dans le dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c), la course d'avance dudit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c), dans ledit dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c), déterminant le déplacement desdites griffes (15a, 15b, 15c, 16a, 16b, 16c ; 21, 22), ledit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) présentant au moins une creusure et/ou une protubérance s'étendant à l'oblique vis-à-vis de la direction (33) de guidage dudit coin, au moins l'une desdites griffes (15a, 15b, 15c ; 21) offrant un profil pénétrant dans ladite creusure et/ou ladite protubérance dudit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c), et ledit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) offrant une taille constante le long de la direction (33) de guidage dudit coin,
    caractérisé par le fait que la direction (33) de guidage du coin et la direction (34) de serrage en tension décrivent un angle α inférieur à 90°.
  10. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon la revendication 9, caractérisé par le fait que l'angle α obéit à la relation α ≤ 90 ⁢ ° - arctan B / L ,
    Figure imgb0012
    dans laquelle L : longueur du coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) dans la direction (33) de guidage dudit coin, et B : largeur maximale dudit coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) mesurée transversalement par rapport à ladite direction (33) de guidage du coin, et dans le plan de ladite direction (33) de guidage du coin et de la direction (34) de serrage en tension.
  11. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon la revendication 9 ou 10, caractérisé par le fait que le coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) est guidé par l'une seulement (22) des griffes.
  12. Dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) selon l'une des revendications 9 à 11, caractérisé par le fait que ledit dispositif tendeur (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) peut être agencé en vue du montage sur des cornières d'articulation intérieure ou des cornières d'articulation extérieure, voire des cornières extérieures orthogonales d'éléments (1, 2) de coffrage de bétonnage.
  13. Système de coffrage de béton, comprenant des éléments (1, 2) de coffrage de bétonnage et des dispositifs tendeurs (12, 13, .14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) conformes à l'une des revendications précédentes,
    lesdits éléments (1, 2) de coffrage de bétonnage étant respectivement pourvus de plusieurs emplacements de montage, en particulier des entretoisements dédiés auxdits dispositifs tendeurs (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c),
    lesdits emplacements de montage étant mutuellement espacés d'une distance A dans une direction perpendiculaire à la direction (34) de serrage en tension desdits dispositifs tendeurs (12, 13, 14 ; 20 ; 35a, 35b, 35c ; 44a, 44b, 44c) devant être montés auxdits emplacements de montage,
    caractérisé par le fait
    que l'angle α obéit à la relation α ≤ 90 ⁢ ° - arcsin B / A ,
    Figure imgb0013
    dans laquelle B : largeur maximale du coin (17a, 17b, 17c ; 23 ; 37a, 37b, 37c ; 46a, 46b, 46c) mesurée transversalement par rapport à la direction (33) de guidage dudit coin, et dans le plan de ladite direction (33) de guidage du coin et de la direction (34) de serrage en tension.
EP04762336.8A 2003-07-11 2004-07-02 Dispositif de serrage comprenant une clavette guidee de maniere oblique Not-in-force EP1646757B1 (fr)

Applications Claiming Priority (2)

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DE10331359A DE10331359B4 (de) 2003-07-11 2003-07-11 Spannschlossvorrichtung mit schräg geführtem Keil
PCT/DE2004/001410 WO2005007997A1 (fr) 2003-07-11 2004-07-02 Dispositif de serrage comprenant une clavette guidee de maniere oblique

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EP1646757A1 EP1646757A1 (fr) 2006-04-19
EP1646757B1 true EP1646757B1 (fr) 2014-04-16

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JP (1) JP4576380B2 (fr)
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DE (1) DE10331359B4 (fr)
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ITRM20070488A1 (it) * 2007-09-19 2009-03-20 Con Dor S R L Dispositivo di bloccaggio per casseforme.
EP2077132A1 (fr) 2008-01-02 2009-07-08 Boehringer Ingelheim Pharma GmbH & Co. KG Dispositif distributeur, dispositif de stockage et procédé pour la distribution d'une formulation
CN102677897A (zh) * 2012-05-28 2012-09-19 开平市优赢金属制品有限公司 建筑模板夹扣
DE102020133598A1 (de) 2020-12-15 2022-06-15 Peri Se Spannschloss zum Verspannen von Rahmenschalungselementen und Vorrichtung zum Errichten von Begrenzungen für zu gießende Körper
DE102020133600A1 (de) 2020-12-15 2022-06-15 Peri Se Spannschloss zum Verspannen von Rahmenschalungselementen
DE102021107526A1 (de) 2021-03-25 2022-09-29 Peri Se Wandschalungssystem und Verfahren zum Positionieren von Ankereinrichtungen und Verbindungsschlössern bei einem Wandschalungssystem
DE102022107429A1 (de) 2022-03-29 2023-10-05 Peri Se Spannschloss zum Verspannen von Rahmenschalungselementen
DE202022105957U1 (de) 2022-10-21 2022-11-04 Peri Se Halterung für ein Spannschloss zum Verspannen von Rahmenschalungselementen

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US8104738B2 (en) 2012-01-31
DE10331359B4 (de) 2010-07-15
KR20060056937A (ko) 2006-05-25
JP4576380B2 (ja) 2010-11-04
WO2005007997A1 (fr) 2005-01-27
MXPA06000462A (es) 2006-04-11
US20060182494A1 (en) 2006-08-17
CA2531923C (fr) 2012-05-29
JP2007506881A (ja) 2007-03-22
EP1646757A1 (fr) 2006-04-19
CA2531923A1 (fr) 2005-01-27
DE10331359A1 (de) 2005-02-03
ES2478316T3 (es) 2014-07-21
KR100892811B1 (ko) 2009-04-10

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