EP3730732B1 - Plug connector for connecting ends of window profiles - Google Patents

Plug connector for connecting ends of window profiles Download PDF

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Publication number
EP3730732B1
EP3730732B1 EP20166464.6A EP20166464A EP3730732B1 EP 3730732 B1 EP3730732 B1 EP 3730732B1 EP 20166464 A EP20166464 A EP 20166464A EP 3730732 B1 EP3730732 B1 EP 3730732B1
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EP
European Patent Office
Prior art keywords
joining member
friction
central
claws
member according
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.)
Active
Application number
EP20166464.6A
Other languages
German (de)
English (en)
French (fr)
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EP3730732A1 (en
Inventor
Cezary Grzywacz
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to PL20166464T priority Critical patent/PL3730732T3/pl
Publication of EP3730732A1 publication Critical patent/EP3730732A1/en
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Publication of EP3730732B1 publication Critical patent/EP3730732B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/667—Connectors therefor

Definitions

  • the invention refers to a plug-in joining member designed to make connections between ends of profiles for window frames, in particular hollow profiles for frames of insulating struts for glass panels.
  • the patent description PL 205223 B1 discloses a plug-in joining member for hollow profiles, in particular for strut frames or ladder insulating profiles for glass panels, where the joining member has a formed body with the U-shaped cross-section.
  • the body contains a bottom wall, also referred to as the central wall, together with two side walls adjacent thereto provided with a plurality of side stopping members shaped as friction claws arranged one after another in line with the direction of hollow profile insertion. At least some of the friction claws on the both side walls is arranged crosswise to the direction of insertion with an offset and with some space between them.
  • the description of the utility model PL 65674 Y1 discloses an U-shaped straight joining member for sandwich-glazed glass panels, where the joining member comprises a central wall and two side walls with springy wedged latches arranged in side walls and central stopping latches that are bent outwardly of side walls planes.
  • the bending offsets outwards the side walls planes are different for springy wedged latches and central stopping latches and gradually increase for each subsequent springy wedged latch being located closer to the central line of the joining member, where the bending offset outwards the side wall planes is the largest for central stopping latches.
  • the length of the springy wedged latches located closest to the front plane exceeds the lengths of other spring wedged lathes.
  • the central line of the implement is understood as a straight line perpendicular to the longitudinal central axis of the joining member and passing its mid-length point.
  • the document EP 2 281 994 T3 discloses a plug-in joining member for hollow profiles of spacing frames or for inner muntin bars in glass panels made of thermal insulating glass.
  • the joining member has an U-shaped cross-section with a central bridge and side bridges, where stops for limiting the insertion range are provided nearby side bridges as well as it has one or more flexible, springy holding members.
  • One holding member of higher stiffness as compared to other holding members is arranged next to the insertion limiters nearby the side bridge. More examples of joining members from the prior art can be found in DE202004004933U and DE202015105061U .
  • the invention is intended to develop a design for a plug-in joining member so that to assure reliable and efficient fixation of the joining member inside a profile channel.
  • the invention is described with details in the independent Claim 1 and refers to a plug-in joining member for connecting ends of window profiles.
  • the plug-in joining member is formed as an elongated piece with an U-shaped cross-section and comprises a bottom wall and side walls adjacent to the bottom wall down its side edges, whereas the joining member has friction claws, where the friction claws at the both sides are turned towards the central line of the joining member.
  • the joining member comprises at least one central stop.
  • the essence of the invention consists in the fact that the cam radius for the working portion of each subsequent friction claw on each specific side wall gradually increase down the both direction from far ends of the joining member towards its central line, whilst tips of working portions on friction claws after having the said friction claws bent out to their working positions are arranged at the same elevation above the bottom wall.
  • the same stiffness is maintained for all friction claws, which enables uniform adhesion of all friction claws and prevents the joining member from undesired deformation of its side walls.
  • each friction claw gradually increases from the joining member far ends towards its central line. Therefore the joining member forms a structure of a beam with principally constant bending strength.
  • the most beneficial embodiment of the invention assumes that the joining members have four friction claws with the same stiffness provided on each side wall between the end of the joining member and its central line.
  • one longitudinal central beading and two side beadings are desirable in the bottom wall of the joining member, where side beadings extend at each side of the central beading and the central beading bottom extends lower than the bottoms of side beadings.
  • the central beading is deeper than side beadings.
  • Yet another beneficial embodiment of the invention assumes that friction claws are provided on side walls down longitudinal side beadings.
  • each subsequent friction claw inserted into the channel of a hollow profile makes a wider scratch than the preceding claw. It mitigates or even eliminates an effect of the joining member slip during its insertion. As a consequence, fixation of the joining member inside a hollow profile is more reliable and durable.
  • the effect of fastening is more reliable since each subsequent friction claw has a larger cam radius at the same height so that it enters between edges of a scratch made by the previous friction claw. Principally equal stiffness of all friction claws leads to uniform holding action of all friction claws, and no friction claw weakens the fastening effect of an adjacent one.
  • the uniform stiffness of friction claws with various cam radiuses is achieved by differentiation of side wall height in concaved areas upstream each subsequent friction claw as well as differentiation of concavity depth upstream each friction claw.
  • all friction claws act with the same force with no weakening of the effect from an adjacent friction claws.
  • all the friction claws should extend to the same distance with respect to the longitudinal central axis of the joining member.
  • application of beadings with various lengths and various elevation of their bottoms, in particular beading with various depth leads to much less stringent requirements to the tolerance for the joining member height.
  • arrangement of friction claws down side beadings in the joining member bottom enables easy insertion of joining members into profiles.
  • Plug-in connecting member 1 for connecting ends of window frame profiles is formed as an elongated piece with an U-shaped cross-section.
  • the joining member 1 comprises a bottom wall 2 and side walls 3 adjacent to the bottom wall down its side edges. Side walls 3 of the joining member 1 are provided with friction claws 4, arranged at the both sides of the central line O and turned towards that central line O.
  • the central line is understood, similarly to the state-of-the-art, as a line extended perpendicularly to the central longitudinal axis of the joining member and positioned in the half-length of the joining member.
  • the joining member 1 has a central stop implemented as central limiters 5 arranged on each side wall 3 within the region of the central line O.
  • the joining member 1 has four friction claws 4 on every side wall 4 and on the both sides of the central line O, which makes sixteen friction claws 4 altogether.
  • the exact number of friction claws may vary for specific embodiments of the joining member, but the minimum number of friction claws, indispensable for reliable operation of the joining member is two friction claws on every side wall at the both sides of the central line.
  • each friction claw 4 is understood as the portion that remains in contact with an inner surface of a frame profile to be joined and that makes a scratch in that profile.
  • the tips 7 of working portions 4A in friction claws 4 after having been bent from the manufacturing positions to the working positions, are aligned at equal elevations above the bottom wall 2. At the same time the tips 7 of working portions 4A in friction claws 4 extent outside the joining member 1 to the same distance with respect to the longitudinal central axis O 1 of the joining member 1. It is the most beneficial embodiment of the joining member 1, however other configurations of friction claws are also possible within the scope of the invention.
  • stiffness of friction claws depend on many factors, not only on their shapes but also on height of the side walls 3 in the concaved areas 6 upstream a specific friction claw 4 as well as on depth of these concavities 6.
  • the height values h 1 , h 2 , h 3 and h 4 of the side wall 3 in the concaved areas 6 upstream each friction claw gradually increase from each far end of the joining member 1 towards the central line O of the joining member 1.
  • the depths l 1 and l 4 of concavities 6 upstream each friction claw 4, measured on the projection onto the plane defined by the bottom wall of the joining member 1 between the tip 7 of each friction claw 4 after having it bent out and the bottom point 8 of the concavities 6 are the deepest for the friction claws 4 located close to the joining member 1 ends and for the ones that are the most adjacent to the central line O for each side wall 3.
  • the bottom points 8 of each concavity 6 are understood as those points of concavities 6 that are within the closest distances to the respective end of the joining member 1.
  • the depths l 1 and l 4 of the outermost friction claws 4 exceed the depths l 2 and l 3 for the mid-length friction claws 4.
  • l 2 l 3 .
  • the depths l 1 and l 4 may be mutually equal or not but beneficially they exceed the depths l 2 and l 3 . As consequence, the uniform stiffness of all friction claws 4 is maintained after having them bent out to the working position.
  • the bottom wall 2 comprises one longitudinal central beading 9 as well as two longitudinal side beadings 10.
  • the bottom 11 of the central beading 9 is arranged lower than bottoms 12 of side beadings 10.
  • the example offset b understood as the difference between vertical positions of bottoms 11 and 12, is 0.1 mm.
  • the central beading 9 is deeper than the side beadings 10.
  • side beadings 10 exceed the length of the central beading 9, which is shown in details in Fig. 2 , whilst all friction claws 4 provided on side walls 3 are deployed down the length of side beadings 10.
  • friction claws can be also deployed outside the area defined by side beadings.
  • a different central stop is applied, in particular a central pin 5' is shaped on side walls 3 instead of central limiters 5.
  • Fig. 10 presents a side view of a fragment of the side wall 3 of the joining member 1 after having the friction claws 4 bent out to their working positions.
  • all tips 7 of working portions 4A in friction claws 4 are arranged down a single straight line O 2 , at the same elevation above the bottom wall 2 of the joining member 1. Since cam radiuses gradually increase, so that R 4 > R 3 > R 2 > R 1 , the chord length - widths of working portions 4A of friction claws 4 increase as well: S 4 > S 3 > S 2 > S 1 .
  • These chords define the contact areas with inner surfaces of frame profiles, which is reflected in the width of scratches made by friction claws on these surfaces: e 4 > e 3 > e 2 > e 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Connection Of Plates (AREA)
  • Door And Window Frames Mounted To Openings (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
EP20166464.6A 2019-03-29 2020-03-27 Plug connector for connecting ends of window profiles Active EP3730732B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL20166464T PL3730732T3 (pl) 2019-03-29 2020-03-27 Łącznik wtykowy do łączenia końcówek profili okiennych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL429424A PL244055B1 (pl) 2019-03-29 2019-03-29 Łącznik wtykowy do łączenia końcówek profili okiennych

Publications (2)

Publication Number Publication Date
EP3730732A1 EP3730732A1 (en) 2020-10-28
EP3730732B1 true EP3730732B1 (en) 2021-11-10

Family

ID=69953922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20166464.6A Active EP3730732B1 (en) 2019-03-29 2020-03-27 Plug connector for connecting ends of window profiles

Country Status (3)

Country Link
EP (1) EP3730732B1 (da)
DK (1) DK3730732T3 (da)
PL (2) PL244055B1 (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017101315U1 (de) * 2017-03-08 2018-06-11 Ralf M. Kronenberg Steckverbinder und Steckverbindung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999034083A1 (de) 1997-12-23 1999-07-08 Max Kronenberg Steckverbinder für hohlprofile
EP0916013B1 (de) 1996-08-05 2000-03-01 Max Kronenberg Steckverbinder für abstandhalter von isolierglasscheiben
WO2002023004A1 (de) 2000-09-13 2002-03-21 Max Kronenberg Steckverbinder für hohlprofile
DE202004004933U1 (de) 2004-03-26 2005-07-21 Kronenberg, Max Gerader Steckverbinder
DE202005004601U1 (de) 2004-10-20 2006-02-23 Kronenberg, Max Steckverbinder für Hohlprofile
DE202012102380U1 (de) 2012-06-28 2013-09-30 Max Kronenberg Steckverbinder
DE202014104222U8 (de) 2014-09-08 2016-03-17 Ralf Max Kronenberg Steckverbinder
DE202015105061U1 (de) 2015-09-24 2016-12-29 Ralf M. Kronenberg Steckverbinder und Steckverbindung
WO2018162584A1 (de) 2017-03-08 2018-09-13 Kronenberg Ralf M Steckverbinder und steckverbindung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009008694U1 (de) 2009-06-23 2010-11-11 Kronenberg, Max Steckverbinder
PL65674Y1 (pl) 2009-08-10 2011-11-30 Halina Nasiadko Łącznik prosty do szyb zespolonych

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0916013B1 (de) 1996-08-05 2000-03-01 Max Kronenberg Steckverbinder für abstandhalter von isolierglasscheiben
WO1999034083A1 (de) 1997-12-23 1999-07-08 Max Kronenberg Steckverbinder für hohlprofile
WO2002023004A1 (de) 2000-09-13 2002-03-21 Max Kronenberg Steckverbinder für hohlprofile
DE202004004933U1 (de) 2004-03-26 2005-07-21 Kronenberg, Max Gerader Steckverbinder
DE202005004601U1 (de) 2004-10-20 2006-02-23 Kronenberg, Max Steckverbinder für Hohlprofile
DE202012102380U1 (de) 2012-06-28 2013-09-30 Max Kronenberg Steckverbinder
DE202014104222U8 (de) 2014-09-08 2016-03-17 Ralf Max Kronenberg Steckverbinder
DE202015105061U1 (de) 2015-09-24 2016-12-29 Ralf M. Kronenberg Steckverbinder und Steckverbindung
WO2018162584A1 (de) 2017-03-08 2018-09-13 Kronenberg Ralf M Steckverbinder und steckverbindung

Also Published As

Publication number Publication date
PL429424A1 (pl) 2020-10-05
PL244055B1 (pl) 2023-11-27
PL3730732T3 (pl) 2022-01-17
EP3730732A1 (en) 2020-10-28
DK3730732T3 (da) 2022-01-03

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