WO2011070004A1 - Organe d'assemblage à rupture destiné à serrer deux plaques l'une contre l'autre - Google Patents

Organe d'assemblage à rupture destiné à serrer deux plaques l'une contre l'autre Download PDF

Info

Publication number
WO2011070004A1
WO2011070004A1 PCT/EP2010/069054 EP2010069054W WO2011070004A1 WO 2011070004 A1 WO2011070004 A1 WO 2011070004A1 EP 2010069054 W EP2010069054 W EP 2010069054W WO 2011070004 A1 WO2011070004 A1 WO 2011070004A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector
orientation
distal
shaft
proximal
Prior art date
Application number
PCT/EP2010/069054
Other languages
English (en)
Inventor
Trent Davis
Tapio Laiho
Original Assignee
Peikko Group Oy
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 Peikko Group Oy filed Critical Peikko Group Oy
Priority to EP10805782A priority Critical patent/EP2510248A1/fr
Priority to CN201080048897.5A priority patent/CN102648355B/zh
Publication of WO2011070004A1 publication Critical patent/WO2011070004A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E04F15/14—Construction of joints, e.g. dividing strips
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
    • E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
    • E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/02—Releasable fastening devices locking by rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/09—Releasable fastening devices with a stud engaging a keyhole slot
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0642—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being arranged one on top of the other and in full close contact with each other

Definitions

  • the present invention relates to a frangible connector for clamping two plates together.
  • the invention has been specifically designed for the joint system for a concrete floor. However, it is broadly applicable to the situation where two plates elements are required to be temporarily clamped together face to face, but are then required to subsequently move away from one another under a load perpendicular to the plane of the plates .
  • Such a joint is used for floors of large buildings such as warehouses and superstores.
  • the floor consists of a number of concrete slabs which are cast in place.
  • the joints define the space into which the concrete is cast.
  • Each joint is provided with a pair of edge rails one for each adjacent slab each having a number of anchors which anchor into the concrete on each side of the joint. As the concrete cures, it shrinks and the rails are pulled apart from one another to provide edge protection for the
  • the rails must be held together in alignment during the transportation and pouring process and ensure that they are easy to handle, but must also be able to move apart as the concrete shrinks.
  • frangible bolts for example of nylon, are used to connect the rails.
  • Each bolt is secured by a nut and is surrounded by a split sleeve to provide additional rigidity to the nylon bolt and
  • Each connector comprises three separate parts.
  • the plates are first held in alignment such that corresponding connection holes are aligned.
  • the sleeve is tapped into place, the bolt is then pushed through the hole and the nut is placed over the threaded end of the bolt.
  • the nut is started using fingers and is then tightened using an electric screwdriver. Such a process is repeated numerous time along the length of a rail.
  • the present invention provides a connector which is simpler to manufacture and install. According to the present invention there is provided a frangible connector for clamping two plates together, each plate having an aligned slot having an elongate
  • the connector comprising:
  • the connector being insertable, in use, into the aligned slots in the plates in a first orientation until the distal flange has passed fully through the slots and being rotatable about the axis to a second orientation in which the plates are clamped, in use, between the distal and proximal flanges;
  • the shaft having a cross section with an elongate shape, the longest dimension of which corresponds, in use, to the shortest dimension of the slot and the shaft having deformable portions, so that, in use, as the connector is rotated to the second orientation, the deformable portions deform until it reaches the second orientation, in which the longest dimension is arranged to fit tightly within the shortest dimension of the slot;
  • part of the connector being frangible so that, when subjected, in use, to an axial load direction, the connector fails in the sense that the clamping force between the distal and proximal flanges is lost.
  • the present invention essentially provides a frangible twist-lock connection that can clamp two plates in an axial and a lateral sense.
  • the connector is inserted into the slots in the plate and twisted to the second orientation. This fulfils two functions. Firstly, the distal and
  • proximal retaining flanges clamp the plates together against separation, and secondly the tight fit of the shaft across the shortest dimension of the slots then prevents
  • the connector is frangible, it allows the plates to move apart when subjected to a separating force as the concrete shrinks.
  • the connectors are designed to be robust enough to withstand transportation and installation of the plates, but will fail readily under the type of load experienced as the concrete shrinks, typically, at a load in order of magnitude less than a load which would otherwise damage the concrete.
  • the connector is a single component and there is no need for a sleeve or nut so that it can be easily
  • the connector lends itself very well to being a one piece moulding, for example an injection moulding, allowing it to be manufactured cheaply and easily.
  • each of the faces of the flanges which face the shaft may be flat.
  • the connector has to be made with very precise tolerances in order to ensure that the connector is able to clamp the plates in the second orientation. Therefore, preferably, at least one of the flanges is provided with a feature to generate an axial clamping force as it is rotated to the second orientation. Such a feature means that, in use, the manufacturing
  • tolerances of the connector and slot are less critical and that sufficient clamping force can be generated in a
  • the feature takes the form of the proximally facing surface of the distal flange having a cam surface which, upon rotation of the connector from the first orientation, provides a lead-in surface to allow the axial clamping force to be generated on the plates between the flanges.
  • the feature may be a recess on the distally facing surface of the proximal flange which fulfils the same function.
  • the deformable portions could, for example, be an insert of a material which has a resilience of less than the resilience of the rest of the connector.
  • the deformable portions are configured so that, once in the second orientation, they lock the connector against rotation away from the second orientation. By preventing counter rotation of the connector, the deformable portions prevent the connector from accidentally becoming dislodged once in place.
  • the resilient portions prefferably be a pair of diametrically opposed resilient tabs, each being spaced from a main body of the shaft, each resilient tab being configured to be deformed by the slots towards the main body of the shaft as the connector is rotated into the second orientation, and snapped back into the original orientation as the connector approaches the second
  • the tabs could be integral with the rest of the connector or could be made of a second material such as a metal .
  • the engagement head may be a handle that is manually gripped or may be a hole, slot or specially shaped (e.g., hexagonal) head for engagement with a tool such as a
  • the handle preferably has a flat configuration as this provides a visual indication of the rotational orientation of the connector.
  • the proximal end of the handle is devoid of straight edges as, if it had a straight edge, there would be a number of straight edges aligned along the rail potentially generating a weakness in the surrounding concrete.
  • the handle may be provided with one or more through holes allowing the
  • Either or both of the shaft and flanges could be designed to be frangible.
  • the current preference is for the distal retaining flange to be frangible in preference to the shaft or proximal flange.
  • the distal flange naturally has small shoulders and preferably, the cross section of these shoulders in the plane of the outer extremity of the shaft in the longest dimension is designed so that the shoulders of the proximal flange will shear in preference to any other failure mechanism.
  • Fig. 1 is a perspective view of the connector from the distal end
  • Fig. 2 is a perspective view of the connector from the proximal end
  • Fig. 3 is a plan view of the connector from the
  • Fig. 4 is a plan view of the connector from the distal end
  • Fig. 5 is a perspective view from the distal end which has been cut in a plane perpendicular to the axis of the connector to show the cross section of the shaft;
  • Fig. 6 is a perspective view from the proximal end which has been cut in a plane parallel to but offset from the axis of the connector showing the structure of the shaft ;
  • Figs. 7A-7G are schematic cross-sections of the shaft in the slot in showing it in various rotational positions as it is twisted from an insertion position to a locked
  • Fig. 8 is a perspective view of a second example of a connector
  • Fig. 9 is a top view of the second connector
  • Fig. 10 is a side of a second connector
  • Fig. 11 is an end view of the second connector.
  • the connector is injection moulded and may be made from a wide variety of materials including metals, composites, and polymers . It is preferably made from a low cost
  • the injection moulding may be internally re- inforced or strengthened by a structural element such as a metal, or other material, plate.
  • a structural element such as a metal, or other material, plate.
  • the connector consists of four sections, namely, beginning from the proximal end, a handle 1, proximal flange 2, shaft 3 and distal flange 4 which will be described in more detail below.
  • the handle 1 has a flat plate-like configuration which has perpendicular reinforcing webs 5 which extend to the proximal flange 2.
  • the proximal end of the handle has a curved configuration to reduce potential lines of weakness in the surrounding concrete. It may also be provided with through-holes (not shown) to key into the concrete.
  • the handle is large enough that it can easily be gripped by the hand of a user and, as such, it has a length and width of around 2 to 3 cm.
  • the proximal flange 2 has a flat disk- like
  • the shaft 3 has a cross section with the largest lateral dimension X (see Fig. 7) corresponding to the narrowest dimension of the elongate slot S into which the connector is fitted.
  • the length of the shaft is determined by the thickness of the two plates to be clamped and is typically between 1 and 3 cm.
  • the shaft has a pair of resilient tabs 6 which are resiliently connected to and spaced from a main body 7 of the shaft. As best shown in Figs. 1 and 2, these tabs 6 extend for almost the full axial length of the shaft, but are free at their axial ends to allow them to deflect.
  • the shaft 3 has a pair of end faces 8 which are flat.
  • the tabs 6 have corresponding end faces 9 which are coplanar with respective end faces 8 of the main body 7. Each of the end faces 8 leads to a curved shoulder
  • the distal flange 4 has a tapered portion 11 at its distal end to facilitate insertion into the slot.
  • the proximally facing surface of the distal flange is generally flat, but is provided with a pair of diametrically opposed cam surfaces 12 for the reason set out below.
  • a connector will now be described with particular reference to Figs. 7A-7G.
  • the aligned rails each have a plurality of elongate slots S, respective pairs of which are aligned.
  • the slots will be elongated in the direction which, in use, would be horizontal, but the connectors could work equally in any orientation.
  • the connector is inserted into a pair of aligned slots assisted by the tapered portion 11 on the distal flange 4 until the distal flange 4 passes fully through the slot. All that is then required is a 90° turn about the axis of the connector to complete the connection.
  • cam surfaces 12 on the proximal face of the distal flange provides a lead-in surface which, upon rotation, draws the two plates together so that the distal flange and the proximal flange clamp the two plates together.
  • the distal flange 4 has a pair of failure planes Z one of which is shown in Fig. 1 and both of which are shown in Fig. 4. At each of these locations, the distal flange 4 has a cross section which is . smaller than the cross section of the shaft 3.
  • the axial loading on the connector is applied between the proximal flange 2 and distal flange 3. Under such loading, the distal flange 4 will shear at one or both of the failure planes Z, and the clamping force is lost allowing the plates may move apart in the axial direction.
  • each connector is designed to have a breaking strength of 10 to 30KN, but may be higher or lower as required.
  • FIG. 8 A second example of a connector is shown in Figs. 8 to
  • the handle 1 of the first example has been replaced with a socket.
  • the socket is hexagonal to receive a hexagonal tool, but could be any appropriate shape corresponding to the chosen tool.
  • recesses 21 are provided in the distally facing surface of the proximal flange 2. This complements the cam surfaces 12 in providing the clamping force when the connector is rotated to the locked position.
  • recesses 21 may be provided instead of the cam surfaces 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Abstract

L'invention porte sur un organe d'assemblage à rupture destiné à serrer deux plaques l'une contre l'autre. L'organe d'assemblage comprend une collerette distale (4) ; une collerette proximale (2) ; et une tige (3) entre les collerettes (2, 4). En utilisation, l'organe d'assemblage est inséré dans des fentes (S) prévues dans les plaques dans une première orientation jusqu'à ce que la collerette distale (4) passe entièrement à travers les fentes (S). L'organe d'assemblage peut être tourné dans une seconde orientation dans laquelle les plaques sont serrées entre les collerettes (2, 4). La tige (3) possède des parties déformables de telle sorte que, lorsqu'on fait tourner l'organe d'assemblage, les parties déformables se déforment jusqu'à ce qu'il atteigne la seconde orientation. Une partie de l'organe d'assemblage est susceptible de rupture de sorte que, lorsqu'elle est soumise à une charge supérieure à une valeur de seuil, l'organe d'assemblage se brise de telle sorte que la force de serrage entre les collerettes disparaît.
PCT/EP2010/069054 2009-12-08 2010-12-07 Organe d'assemblage à rupture destiné à serrer deux plaques l'une contre l'autre WO2011070004A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10805782A EP2510248A1 (fr) 2009-12-08 2010-12-07 Organe d'assemblage à rupture destiné à serrer deux plaques l'une contre l'autre
CN201080048897.5A CN102648355B (zh) 2009-12-08 2010-12-07 用于将两个板件夹持在一起的易碎连接件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0921505.4A GB2476055B (en) 2009-12-08 2009-12-08 Frangible connector for clamping two plates together
GB0921505.4 2009-12-08

Publications (1)

Publication Number Publication Date
WO2011070004A1 true WO2011070004A1 (fr) 2011-06-16

Family

ID=41642129

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/069054 WO2011070004A1 (fr) 2009-12-08 2010-12-07 Organe d'assemblage à rupture destiné à serrer deux plaques l'une contre l'autre

Country Status (4)

Country Link
EP (1) EP2510248A1 (fr)
CN (1) CN102648355B (fr)
GB (1) GB2476055B (fr)
WO (1) WO2011070004A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104022788A (zh) * 2013-02-28 2014-09-03 Gn瑞声达A/S 用于音频流传输的音频系统和相关联的方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6500259B2 (ja) * 2014-10-27 2019-04-17 北川工業株式会社 固定具
CN106272523A (zh) * 2016-09-18 2017-01-04 苏州驱指自动化科技有限公司 方型夹片定位件
US11885091B2 (en) 2021-06-30 2024-01-30 Reynolds Presto Products Inc. Connection device for fastening expanded cell confinement structures and methods for doing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1123443A1 (fr) 1998-10-20 2001-08-16 Teräspeikko Oy Procede servant a fabriquer un sol de dalles et sol de dalles
WO2003060336A1 (fr) * 2001-12-29 2003-07-24 A. Raymond & Cie Element de fixation destine a etre insere dans un trou oblong d'une plaque support
US20060075706A1 (en) * 2001-08-01 2006-04-13 Russell Boxall System of protecting the edges and construction joints of cast in place concrete slabs
EP1867783A2 (fr) 2002-08-16 2007-12-19 Permaban Limited Dalle de plancher en béton

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2718170C3 (de) * 1977-04-23 1979-10-25 Ford-Werke Ag, 5000 Koeln Befestigungsclip für verkleidete Abdeckplatten, insbesondere für Kraftfahrzeuge
FR2514084B1 (fr) * 1981-10-07 1985-09-13 Telemecanique Electrique Dispositif par vissage sur un profile et combinaison d'un profile avec un tel dispositif
US4705442A (en) * 1986-04-07 1987-11-10 Trw Inc. Quarter turn fastener
CA2270085A1 (fr) * 1999-04-23 2000-10-23 Constantinos J. Joannou Mecanisme de fixation de verrou pour toles minces
CN1242183C (zh) * 1999-11-29 2006-02-15 索斯科公司 可剪断的紧固装置
DE10327858A1 (de) * 2003-06-18 2005-01-05 Robert Bosch Gmbh Scheibenwischvorrichtung, insbesondere für ein Kraftfahrzeug
GB0417760D0 (en) * 2004-08-10 2004-09-08 Devlin Seamus M Slab joint

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1123443A1 (fr) 1998-10-20 2001-08-16 Teräspeikko Oy Procede servant a fabriquer un sol de dalles et sol de dalles
US20060075706A1 (en) * 2001-08-01 2006-04-13 Russell Boxall System of protecting the edges and construction joints of cast in place concrete slabs
WO2003060336A1 (fr) * 2001-12-29 2003-07-24 A. Raymond & Cie Element de fixation destine a etre insere dans un trou oblong d'une plaque support
EP1867783A2 (fr) 2002-08-16 2007-12-19 Permaban Limited Dalle de plancher en béton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104022788A (zh) * 2013-02-28 2014-09-03 Gn瑞声达A/S 用于音频流传输的音频系统和相关联的方法

Also Published As

Publication number Publication date
GB2476055A (en) 2011-06-15
EP2510248A1 (fr) 2012-10-17
CN102648355A (zh) 2012-08-22
CN102648355B (zh) 2014-07-09
GB2476055B (en) 2016-04-20
GB0921505D0 (en) 2010-01-20

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