WO2006088374A1 - Connecting device - Google Patents

Connecting device Download PDF

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Publication number
WO2006088374A1
WO2006088374A1 PCT/NO2006/000062 NO2006000062W WO2006088374A1 WO 2006088374 A1 WO2006088374 A1 WO 2006088374A1 NO 2006000062 W NO2006000062 W NO 2006000062W WO 2006088374 A1 WO2006088374 A1 WO 2006088374A1
Authority
WO
WIPO (PCT)
Prior art keywords
retaining
engagement
profile element
connecting device
head
Prior art date
Application number
PCT/NO2006/000062
Other languages
French (fr)
Inventor
Knut Woxman
Arne Hansen
Original Assignee
Arctium As
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 Arctium As filed Critical Arctium As
Priority to EP06716738.7A priority Critical patent/EP1853828B1/en
Priority to US11/816,531 priority patent/US7748924B2/en
Priority to CA002598476A priority patent/CA2598476A1/en
Priority to JP2007556101A priority patent/JP5143572B2/en
Publication of WO2006088374A1 publication Critical patent/WO2006088374A1/en

Links

Classifications

    • 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
    • F16B5/0614—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 angled relationship
    • 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
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
    • 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
    • F16B21/06—Releasable fastening devices with snap-action
    • 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
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/20—Connections with hook-like parts gripping behind a blind side of an element to be connected
    • F16B2200/205—Connections with hook-like parts gripping behind a blind side of an element to be connected the hook being a separate retainer
    • 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
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/69—Redundant disconnection blocking means
    • F16B2200/71—Blocking disengagement of catches or keys
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45152—Each mating member having similarly shaped, sized, and operated interlocking or intermeshable face

Definitions

  • the present invention concerns a connecting device as in the introduction of claim 1.
  • WO/9200461 discloses a clamp means for connecting objects in a strong and simple way.
  • the clamp means comprises a female part having a U-form and one or two portions extending inwards in the U and providing one or two barbs for retaining a male part extending into the female part.
  • a well known furniture connector is one which comprises an excenter groove plug cooperating with a head on a bolt.
  • the plug is inserted in a bore in the one furniture part and the bolt is inserted through a bore in the other furniture part and engages the plug.
  • a turning of the bolt results in a tightening of the connection.
  • snap fasteners wherein a plug having an undercut or enlarged head cooperates with a more or less resilient receptacle.
  • the first mentioned clamp means gives a simple and secure connection between two objects but is, however, dependent on tight tolerances in order to result in a stable connection.
  • Said furniture connector gives a good and possibly later tightable connection between furniture parts but calls for a certain adaption and orientation of the plug for engagement with the bolt head.
  • Snap fasteners are simple and cheap but will mostly have a certain loosenes and they cannot be tightened at the time of connection or later.
  • the object of the present invention is to provide for a such connector, especially for furniture components but also more generally for structural components.
  • the invention combines the easiness of snap fasteners with the possibility of tightening the connection.
  • the need for close tolerances is eliminated and a connection between two structural components is realised in a releasable and tightable way.
  • the invention Used as a furniture connector with a profile element with a longitudinal slot the invention will simplify the placing together of components and the connection can be realised in a more simple way, without specific calls for mutual adaption and orientation in that the new profile element has a slot for insertion of the plug head so that the plug and its head can be inserted in the slot provided the slot is given a fairly correct orientation relative the plug before such insertion. What it takes is that the plug must only be inserted in the profile element through the slot so that the undercut head engages behind the internal retaining engagement means. Thereafter the device can be tightened in that the tightening means is tightened, whereby the undercut head is pressed against the internal retaining engagements means and the second structural component is drawn tight against the first structural component.
  • a preferable embodiment is one where the profile element is a plate metal member which is rolled and/or bent to a sleeve form having at least on plate edge portion extending inwardly in the profile and forming the retaining engagement means.
  • the undercut head may have a groove for receiving the plate edge portion.
  • the plate edge portion and the undercut head will then be locked together, thereby enhancing the connection.
  • the plug member may have a longitudinal dimension resulting in that the said second end will extend out from the first structural component when the undercut head is inserted and retained in the retaining means.
  • the plug member may the have a centering or guiding function for the second structural component, an advantage when putting together two or more components, f.inst. a shelf.
  • the retaining means may have a longitudinal dimension enabling the use of more then one fixing means together with the retaining means.
  • the retaining means comprises a cylindrical body having an outer peripherical surface, a longitudinal slot extending radial inwards from said surface and ending in an enlarged cavity in said body for receiving and retaining engagement with the said head.
  • the connecting device further includes a locking member adapted for insertion in locking engagement with the mutually engaged retaining means and fixing means.
  • the plug member when cooperating with a profile element may have an internal bore having a diameter at least equal to the dimension across the undercut head so that the bore will opens out behind and adjacent the undercut head, thus enabling a rod or a screw, provided the bore is threaded, to push the edge portions out of engagement with the undercut plug head.
  • the orientation of the profile member in a bore in a structural component is not critical as long as the slot is fairly oriented to receive the plug head but preferably the profile element may have an outer fixating element for the cooperation with a wall in the bore.
  • the insertion of the plug head through the slot in the profile element calls normally for a certain flexibility in the plug head and/or in the profile element.
  • the profile elements and/or the plug head are provided with a certain compression and expansion potential.
  • Figure 1 shows a section of a preferred connector according to the invention
  • Figure 2 shows a section of a modified connector according to the invention
  • Figure 3 shows a section of a third preferred embodiment of the invention
  • Figure 4 shows a perspective view of a possible profile element according to the invention
  • Figure 5 shows a perspective view of an elongated profile element according to the invention
  • Figure 6 shows a section through a wall or fence provided by means of the invention
  • Figure 7 shows a section through an embodiment where the plug member may be released from the profile element
  • Figure 8 shows a modification of the profile element in figure 4.
  • Figure 9 shows a side view of the element in figure 8.
  • FIGS 10-12 show possible embodiments of locking members
  • Figure 13 shows a section of another embodiment according to the invention.
  • figure 1 shows a preferred connector according to the invention for the connection of two furniture parts or structural components 1 and 2.
  • a blind bore 3 is provided in the first furniture part 1.
  • An opening 4 in the form of a bore extends from the side of the furniture part 1 facing the second furniture part 2 and opens into the blind bore 3.
  • the second furniture part 2 has a throughgoing bore 5.
  • a profile element 6 is arranged in the blind bore 3 with the slot 9, formed by the inwardly extending edge portions 7,8, oriented towards the bore 4. As shown the edge portions 7,8 provide retaining means or barbs 10 and 11.
  • a plug 12 is inserted through the bore 4 and in through the slot 9 until the undercut plug head 13 is placed behind the barbs 10,11, as shown in figure 1.
  • the plug 12 has a such length that it extends into the furniture part 2 and thus may be used as a centering or orienting means to achieve a correct alignment of the furniture parts 1 and 2 with the bores 4 and 5 in alignment.
  • a screw 14 is shown threaded in a threaded bore 15 in the plug 12. The screw head 16 is tightened towards and against the second furniture part 2, in a cavity 17.
  • the orientation of the profile element 6 in the blind bore 3 is not critical. Important is only that the slot 9 is so oriented that the plug head 13 can enter the slot.
  • the profile element 6 may have an outer guiding or fixating element 18 for cooperation with a groove 19 in the blind bore 3 or for pressing into the material in the furniture part 1, provided the profile element 6 is dimensioned for narrow tolerance in the blind bore 3.
  • the profile element 6 there may be a guiding cavity 20 for fixating cooperation with the end of the plug head 13. If additionally the portions 7 and 8 are given a convex shape corresponding to the concave flanks of the plug 12 behind the undercut head 13, a very stable and secure connection will be achieved when the screw 14,16 is tightened. Broken lines indicate a locking member which will be explained later.
  • the embodiment in figure 2 is a modification of the figure 1 embodiment and corresponding features are given the same reference numbers to the drawing as in figure 1.
  • the main difference is that the embodiment in figure 2 has only one barb 10 whereas the other edge portion 8 is drawn down against the bottom in the profile element 6.
  • the plug head 13 is undercut only on one side, for cooperation with the barb 10.
  • FIG 3 shows an embodiment where corresponding features have the same references as in figure 1.
  • the plug 12 i.e. its head 13 is split in order to give the plug head a resiliency necessary to enter the slot 9 and engage behind the barbs 10 and 11.
  • Figure 4 shows a possible profile element 6' in the form of a cylindrical body having a slot 9' extending radial inwards and ending in a cavity 21 for receiving the undercut plug head (not shown).
  • This profile element 6' may preferably be in a plastic material. It has here an enlarged massive head 22 adapted to close the bore wherein the element 6' is placed.
  • An elongated profile element 23 is shown in figure 5. This profile element 23 is adapted for cooperation with a number of plug members 24, as shown in the figure and is fastened to a structural component 25 by means of screws (not shown).
  • Such elongated elements 23 may for inst. be used in the erection of a fence 26 or wall as shown in figure 6.
  • a number of elongated elements 23 are by suitable means f.inst. screws (not shown) fastened to posts 27 (only one post shown).
  • Planks 28 are connected to the profile elements 23 by means of fixing means according to the invention.
  • Figure 6 shows a fixing means 29 as in figure 1 whereas the other fixing means 30 is modified in that the plug 9" is threaded and cooperates with a head nut 31.
  • the plug and the profile element may have other suitable form and that the undercut engagement may be realised in other equivalent forms than here shown and described. There may be situations where the springy effect is not necessary, as f.inst. when using elements as in figure 5 where the plugs may be inserted lenghtwise in the profile elements. Both the profile element and the plug may have a certain resiliency, as caused by the material used or by the specific springy form of the two parts.
  • Figure 7 shows an embodiment substantially as in figure 1.
  • the two structural components 32 and 33 are connected by means of a plug member 34 having an undercut head 36 engaging the plate portions 37 and 38.
  • the plug member has an internal threaded bore 39 where a threaded element 40 is threaded.
  • the diameter of the bore 39 is so large that the bore 39 penetrates the plug member wall behind the undercut head 36.
  • the threaded element will push the plate portions out of engagement as disclosed in the right part of the figure 7, where the plate portion 38 is shown pushed out sideways.
  • the plug member will then be free and can be pulled out.
  • the plug member 34 is tightened by means of a nut 35.
  • Figures 8 and 9 show a modification of the element in figure 4.
  • the element 6" is as in figure 4 but is given a flexibility in that a cut 41 is performed in the body thus giving the element a certain flexing capacity, corresponding to that of the flexible plate portions 7 and 8 in figure 1.
  • FIGS. 10-12 show possible locking members to be used, f.inst. as indicated with broken lines in figure 1 where a locking member 42 as in figure 10 is inserted in the bore 3. The locking member will back the plate portions 7 and 8 as shown in figure 1. Another possible locking member is that in figure 11.
  • This locking member 43 has two pins 45,46 extending out from a plate or head 47 and may be inserted and used as shown in figure 13.
  • Figure 12 shows a locking member 48 which may be used as shown in figure 14.
  • Figure 13 shows an embodiment substantially as in figure 1 but where the profile element 6 is made of thin flatsteel, the ends of the inwardly bent portions 7 and 8 being received in grooves 49,50 in the undercut head 9. Additionally the retaining engagement is strenghtened in that a locking member 45,46 is inserted.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Connection Of Plates (AREA)
  • Furniture Connections (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

A connection device for connecting two structural components is comprising a retaining means in a first structural component and a fixing means for insertion in a second structural component for connecting engagement with said retaining means thereby holding the two structural components together. The fixing means comprises a plug member having a first end and a second end, the said first end comprising an undercut head for insertion in and retaining engagement with said retaining means. The said plug member is comprising means for engagement with said second structural component.

Description

Connecting O device
The present invention concerns a connecting device as in the introduction of claim 1. WO/9200461 discloses a clamp means for connecting objects in a strong and simple way. The clamp means comprises a female part having a U-form and one or two portions extending inwards in the U and providing one or two barbs for retaining a male part extending into the female part.
A well known furniture connector is one which comprises an excenter groove plug cooperating with a head on a bolt. The plug is inserted in a bore in the one furniture part and the bolt is inserted through a bore in the other furniture part and engages the plug. A turning of the bolt results in a tightening of the connection.
There are also known snap fasteners wherein a plug having an undercut or enlarged head cooperates with a more or less resilient receptacle. The first mentioned clamp means gives a simple and secure connection between two objects but is, however, dependent on tight tolerances in order to result in a stable connection. Said furniture connector gives a good and possibly later tightable connection between furniture parts but calls for a certain adaption and orientation of the plug for engagement with the bolt head. Snap fasteners are simple and cheap but will mostly have a certain loosenes and they cannot be tightened at the time of connection or later.
It is especially for furniture important that it is possible to tighten the connectors at the time of connection and later. There is a need for a such cheap, fast and simple and tightable connector, especially for furniture. The object of the present invention is to provide for a such connector, especially for furniture components but also more generally for structural components.
This object is achieved with a connecting device as disclosed in claim 1. Further advantageous feature are disclosed in the dependant claims.
The invention combines the easiness of snap fasteners with the possibility of tightening the connection. The need for close tolerances is eliminated and a connection between two structural components is realised in a releasable and tightable way.
Used as a furniture connector with a profile element with a longitudinal slot the invention will simplify the placing together of components and the connection can be realised in a more simple way, without specific calls for mutual adaption and orientation in that the new profile element has a slot for insertion of the plug head so that the plug and its head can be inserted in the slot provided the slot is given a fairly correct orientation relative the plug before such insertion. What it takes is that the plug must only be inserted in the profile element through the slot so that the undercut head engages behind the internal retaining engagement means. Thereafter the device can be tightened in that the tightening means is tightened, whereby the undercut head is pressed against the internal retaining engagements means and the second structural component is drawn tight against the first structural component.
A preferable embodiment is one where the profile element is a plate metal member which is rolled and/or bent to a sleeve form having at least on plate edge portion extending inwardly in the profile and forming the retaining engagement means.
Preferably the undercut head may have a groove for receiving the plate edge portion. The plate edge portion and the undercut head will then be locked together, thereby enhancing the connection.
Preferably the plug member may have a longitudinal dimension resulting in that the said second end will extend out from the first structural component when the undercut head is inserted and retained in the retaining means.The plug member may the have a centering or guiding function for the second structural component, an advantage when putting together two or more components, f.inst. a shelf.
The retaining means may have a longitudinal dimension enabling the use of more then one fixing means together with the retaining means.
Another preferable embodiment is one where the retaining means comprises a cylindrical body having an outer peripherical surface, a longitudinal slot extending radial inwards from said surface and ending in an enlarged cavity in said body for receiving and retaining engagement with the said head. A preferable embodiment of the invention is one where the connecting device further includes a locking member adapted for insertion in locking engagement with the mutually engaged retaining means and fixing means.
In order to be able to release the plug member from the engagement with the retaining means, especially in connection with larger structures and connecting devices the plug member when cooperating with a profile element may have an internal bore having a diameter at least equal to the dimension across the undercut head so that the bore will opens out behind and adjacent the undercut head, thus enabling a rod or a screw, provided the bore is threaded, to push the edge portions out of engagement with the undercut plug head. The orientation of the profile member in a bore in a structural component is not critical as long as the slot is fairly oriented to receive the plug head but preferably the profile element may have an outer fixating element for the cooperation with a wall in the bore.
The insertion of the plug head through the slot in the profile element calls normally for a certain flexibility in the plug head and/or in the profile element. Thus the profile elements and/or the plug head are provided with a certain compression and expansion potential.
Characteristics and advantages of the invention will be apparent from the following description of some embodiments, which are to be intended only as examples and not as limitations with reference to the enclosed drawings, wherein: Figure 1 shows a section of a preferred connector according to the invention; Figure 2 shows a section of a modified connector according to the invention; Figure 3 shows a section of a third preferred embodiment of the invention;
Figure 4 shows a perspective view of a possible profile element according to the invention; Figure 5 shows a perspective view of an elongated profile element according to the invention;
Figure 6 shows a section through a wall or fence provided by means of the invention;
Figure 7 shows a section through an embodiment where the plug member may be released from the profile element;
Figure 8 shows a modification of the profile element in figure 4;
Figure 9 shows a side view of the element in figure 8;
Figures 10-12 show possible embodiments of locking members; and
Figure 13 shows a section of another embodiment according to the invention; With reference to the above figures figure 1 shows a preferred connector according to the invention for the connection of two furniture parts or structural components 1 and 2. A blind bore 3 is provided in the first furniture part 1. An opening 4 in the form of a bore extends from the side of the furniture part 1 facing the second furniture part 2 and opens into the blind bore 3. The second furniture part 2 has a throughgoing bore 5.
A profile element 6 is arranged in the blind bore 3 with the slot 9, formed by the inwardly extending edge portions 7,8, oriented towards the bore 4. As shown the edge portions 7,8 provide retaining means or barbs 10 and 11. When connecting the furniture parts 1 and 2 a plug 12 is inserted through the bore 4 and in through the slot 9 until the undercut plug head 13 is placed behind the barbs 10,11, as shown in figure 1. The plug 12 has a such length that it extends into the furniture part 2 and thus may be used as a centering or orienting means to achieve a correct alignment of the furniture parts 1 and 2 with the bores 4 and 5 in alignment. A screw 14 is shown threaded in a threaded bore 15 in the plug 12. The screw head 16 is tightened towards and against the second furniture part 2, in a cavity 17.
It will be understood that the orientation of the profile element 6 in the blind bore 3 is not critical. Important is only that the slot 9 is so oriented that the plug head 13 can enter the slot.
As shown the profile element 6 may have an outer guiding or fixating element 18 for cooperation with a groove 19 in the blind bore 3 or for pressing into the material in the furniture part 1, provided the profile element 6 is dimensioned for narrow tolerance in the blind bore 3. In the profile element 6 there may be a guiding cavity 20 for fixating cooperation with the end of the plug head 13. If additionally the portions 7 and 8 are given a convex shape corresponding to the concave flanks of the plug 12 behind the undercut head 13, a very stable and secure connection will be achieved when the screw 14,16 is tightened. Broken lines indicate a locking member which will be explained later.
The embodiment in figure 2 is a modification of the figure 1 embodiment and corresponding features are given the same reference numbers to the drawing as in figure 1. The main difference is that the embodiment in figure 2 has only one barb 10 whereas the other edge portion 8 is drawn down against the bottom in the profile element 6. Correspondingly the plug head 13 is undercut only on one side, for cooperation with the barb 10.
Figure 3 shows an embodiment where corresponding features have the same references as in figure 1. The plug 12 i.e. its head 13 is split in order to give the plug head a resiliency necessary to enter the slot 9 and engage behind the barbs 10 and 11.
Figure 4 shows a possible profile element 6' in the form of a cylindrical body having a slot 9' extending radial inwards and ending in a cavity 21 for receiving the undercut plug head (not shown). This profile element 6' may preferably be in a plastic material. It has here an enlarged massive head 22 adapted to close the bore wherein the element 6' is placed. An elongated profile element 23 is shown in figure 5. This profile element 23 is adapted for cooperation with a number of plug members 24, as shown in the figure and is fastened to a structural component 25 by means of screws (not shown).
Such elongated elements 23 may for inst. be used in the erection of a fence 26 or wall as shown in figure 6. A number of elongated elements 23 are by suitable means f.inst. screws (not shown) fastened to posts 27 (only one post shown). Planks 28 are connected to the profile elements 23 by means of fixing means according to the invention. Figure 6 shows a fixing means 29 as in figure 1 whereas the other fixing means 30 is modified in that the plug 9" is threaded and cooperates with a head nut 31.
The person skilled in the art will appreciate that the plug and the profile element may have other suitable form and that the undercut engagement may be realised in other equivalent forms than here shown and described. There may be situations where the springy effect is not necessary, as f.inst. when using elements as in figure 5 where the plugs may be inserted lenghtwise in the profile elements. Both the profile element and the plug may have a certain resiliency, as caused by the material used or by the specific springy form of the two parts.
Figure 7 shows an embodiment substantially as in figure 1. The two structural components 32 and 33 are connected by means of a plug member 34 having an undercut head 36 engaging the plate portions 37 and 38. The plug member has an internal threaded bore 39 where a threaded element 40 is threaded. The diameter of the bore 39 is so large that the bore 39 penetrates the plug member wall behind the undercut head 36. Thus, when threaded into the bore 39 the threaded element will push the plate portions out of engagement as disclosed in the right part of the figure 7, where the plate portion 38 is shown pushed out sideways. The plug member will then be free and can be pulled out. In figure 7 the plug member 34 is tightened by means of a nut 35.
Figures 8 and 9 show a modification of the element in figure 4. The element 6"is as in figure 4 but is given a flexibility in that a cut 41 is performed in the body thus giving the element a certain flexing capacity, corresponding to that of the flexible plate portions 7 and 8 in figure 1.
In certain cases there may be a need for securing or locking the retaining engagement and the figures 10-12 show possible locking members to be used, f.inst. as indicated with broken lines in figure 1 where a locking member 42 as in figure 10 is inserted in the bore 3. The locking member will back the plate portions 7 and 8 as shown in figure 1. Another possible locking member is that in figure 11. This locking member 43 has two pins 45,46 extending out from a plate or head 47 and may be inserted and used as shown in figure 13.
Figure 12 shows a locking member 48 which may be used as shown in figure 14.
Figure 13 shows an embodiment substantially as in figure 1 but where the profile element 6 is made of thin flatsteel, the ends of the inwardly bent portions 7 and 8 being received in grooves 49,50 in the undercut head 9. Additionally the retaining engagement is strenghtened in that a locking member 45,46 is inserted.

Claims

1. Connecting device for connecting two structural components, especially two furniture components, comprising a retaining means for arrangement in a first of said structural components and a fixing plug means for insertion in a throughgoing bore in second of said structural components for connecting engagement with said retaining means, said fixing plug means comprising means for engagement with said second structural component, thereby holding the said two structural components together when in said connecting engagement with said retaining means, characterised in that said fixing plug means comprising a fixing plug having a first end comprising an undercut head for insertion in and in retaining engagement with said retaining means, said means for engagement with said second structural component comprising a separate tightening means for thredable cooperation with said fixing plug at a second end of said fixing plug, said retaining means comprising a profile element having a longitudinal slot and at least one internal retaining engagement means for said retaining engagement with said undercut head.
2. Connecting device as in claim 1, characterised in that said profile element is a plate metal member which is rolled or bended to a sleeve form having plate edge portions extending inwardly in the sleeve and forming at least one retaining edge for said retaining engagement with said undercut head.
3. Connecting device as in claim 2, characterised in that said undercut head is adapted to receive said at least one retaining edge in a groove.
4. Connecting device as in any of the claims 1-3, characterised in that said undercut head has a longitudinal dimension which allows said undercut head to bottom in said profile element when in said retaining engagement.
5. Connecting device as in any of the claims 1-4, characterised in that said fixing plug has a longitudinal dimension resulting in that said second end will extend beyond said first structural component when said undercut head is inserted and retained in said profile element.
6. Connecting device as in any of the preceding claims, characterised in that said profile element has a longitudinal dimension enabling the use of a number of said fixing plug means with said profile element.
7. Connecting device as in claim 1, characterised in that said profile element comprises a cylindrical body having an outer peripheral surface, a longitudinal slot extending radial inwards from said surface and ending in a relative said slot, enlarged cavity in said body for receiving and retaining said undercut head.
8. Connecting device as in any of the preceding claims 1-6, characterised by a locking member adapted for longitudinally insertion in said profile element for locking engagement with said mutually engaged internal retaining engagement means and undercut head.
9. Connecting device as in any of the preceding claims, characterised in that said plug member has an internal bore from said second end, said internal bore having a diameter at least equal to the dimension across said undercut head so that said internal bore will open out behind and adjacent said undercut head, said internal bore preferably being a threaded bore.
10. Connecting device as in any of the preceding claims, characterised in that said profile element has an outer fixating element for cooperation with a wall in a bore.
PCT/NO2006/000062 2005-02-17 2006-02-15 Connecting device WO2006088374A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06716738.7A EP1853828B1 (en) 2005-02-17 2006-02-15 Connecting device
US11/816,531 US7748924B2 (en) 2005-02-17 2006-02-15 Connecting device
CA002598476A CA2598476A1 (en) 2005-02-17 2006-02-15 Connecting device
JP2007556101A JP5143572B2 (en) 2005-02-17 2006-02-15 Connecting device

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GB0503328A GB2423332B (en) 2005-02-17 2005-02-17 Connecting device
GB0503328.7 2005-02-17

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WO2006088374A1 true WO2006088374A1 (en) 2006-08-24

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JP (1) JP5143572B2 (en)
CA (1) CA2598476A1 (en)
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WO (1) WO2006088374A1 (en)

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GB2423332B (en) 2009-05-27
US7748924B2 (en) 2010-07-06
JP5143572B2 (en) 2013-02-13
JP2008530479A (en) 2008-08-07
GB0503328D0 (en) 2005-03-23
GB2423332A (en) 2006-08-23
CA2598476A1 (en) 2006-08-24
US20080244882A1 (en) 2008-10-09
EP1853828B1 (en) 2013-10-09
EP1853828A1 (en) 2007-11-14

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