EP4022157B1

EP4022157B1 - Hinge arrangement with screw mounting system

Info

Publication number: EP4022157B1
Application number: EP20756800.7A
Authority: EP
Inventors: Ireneusz Wala; Mateusz Duraj; Adrian Jedrusik
Original assignee: "wala" Spolka Z OO; Wala Sp zoo
Current assignee: "wala" Spolka Z OO; Wala Sp zoo
Priority date: 2019-08-26
Filing date: 2020-08-07
Publication date: 2023-10-25
Anticipated expiration: 2040-08-07
Also published as: PL430954A1; PL4022157T3; WO2021037527A1; EP4022157A1

Description

The invention relates to a thermal insulating profile element with a hinge arrangement, in particular a door or window hinge arrangement, comprising at least two pivotally connected hinge members, wherein at least one of said hinge members has a mounting element with at least two mounting orifices and is attached to the thermal insulating profile element of a frame or sash via a screw mounting system including at least two mounting bolts passing through the mounting orifices in the mounting element and through the mounting orifices in the thermal insulating profile element, wherein the thermal insulating profile element has at least one metal first box profile and at least one metal second box profile connected via at least one thermal insulating element defining an inner thermal insulating space.

Background of the Invention

European patent publication EP2636830 discloses a door hinge mounting arrangement comprising a screw mounting system having an end counter plate contacting the outer surface of the hollow profile, a sleeve connecting element attached to the end plate having a threaded through hole adapted to engage a mounting bolt through a flat mounting portion of the hinge member. On the side of the sleeve element there is a retaining sleeve including a radially projecting flange for locating the mounting system against the outer surface of the hollow profile, wherein the outer diameter of the retaining sleeve corresponds to the outer diameter of the sleeve connecting element. Similar arrangements are also disclosed in the publications DE29922023 , DE 20 2018 101497 U1 , DE 27 00 100 A1 , EP 1 223 274 A2 and DE202007003675 .
It has been the object of the present invention to provide a hinge arrangement with increased strength and good thermal insulation, characterized by simple construction and low production costs.

Summary of the Invention

The invention provides a thermal insulating profile element with a hinge arrangement according to claim 1.
Such a construction of the screw mounting system allows for quick mounting of the hinge arrangement. The plastic locking sleeves prevent deformation of the thermal insulating profile elements while the mounting screws are screwed into the rivet nuts to secure the mounting element of the hinge member. The metal mounting bolts can therefore be elements that are thermally insulated from other metal elements.
According to the invention, said two locking sleeves are paired via a locking plate constituting said torque locking means to form a unitary stiffening member.
According to the invention, said locking plate is screwed to the profile element from its axially inner side by means of mounting screws.

Brief description of drawings

The invention shall be described and explained below in connection with the attached drawings in which:

Fig. 1 shows the hinge arrangement in the open position together with fragments of the frame and sash profiles in an axonometric view;
Fig. 2 is an axonometric view of the hinge arrangement of Fig. 1 in the open position;
Fig. 3 shows the mounting of the hinge member to the profile element in a cross section along a plane perpendicular to the hinge axis passing through the axes of the mounting bolts;
Fig. 4 shows the hinge member with the profile element in an axonometric view from the side of the stiffening members; and
Fig. 5 shows selected elements of the screw mounting system in longitudinal section with a rivet nut before (Fig. 5a) and after (Fig. 5b) mounting.

Detailed description of preferred embodiment

Fig. 1 shows one of the several hinge arrangements 1, which in this embodiment serve to hinge the multi-chamber thermal insulating profile elements 3 of the sash 5, not shown, of the external office door in the multi-chamber thermal insulating profile elements 3 of the frame 4. In the contour defined by the interconnected profile elements 3, sashes 5, not shown, uniform or multi-chamber glazing units, panes or elements made of toughened glass, plastic, wood, etc., can be embedded. The figure shows the hinge arrangement 1 in the open position. The shown hinge arrangement 1 comprises two hinge members 2a attached to the longitudinal profile member 3 of the frame 4 and articulated to the hinge member 2b attached to the profile member 3 of the sash 5.
Where appropriate numerical references for elements with the same functionality, but a slightly different design, have been extended by the suffix "a" for the frame 4 or "b" for the sash 5. The orientation of the coordinate system refers to the given profile element 3 and the axis of the mounting bolts 72. The terms "axially outer" and "axially inner" of the profile element as used herein thus refer to the mounting side of the hinge member (axially outer side) or the side of the building envelope or sash filling (axially inner side), respectively.
In this embodiment, the profile element 3 of the frame 4 consists of a first aluminium box profile 31a and a second aluminium box profile 32a, which are connected by two longitudinal shaped thermal insulating ribs 33a made of polyamide PA66 with 50% fiberglass addition. The insulating ribs 33a define an inner thermal insulating space 34a therebetween. The profile element 3 of the sash 5 in this embodiment has an analogous structure defined by a first aluminium box profile 31b, a second aluminium box profile 32b, connected by thermal insulating ribs 33b. The low thermal conductivity (less than 0.1 W/(m K)) of the thermal insulating ribs 33 ensures thermal separation of the box profiles 31, 32 (whose thermal conductivity is about 200 W/(m K)) in the area of the inner thermal insulating space 34. As a result, the overall thermal resistance of the profile elements 3 is relatively high.
Each of the hinge members 2a, 2b has a metal shaped hinge clamp 21 and a flat mounting element 22 with orifices 23 and is attached to the respective thermal insulating profile element 3 via a screw mounting system 7. The hinge clamps 21 of the hinge members 2a of the frame 4 include a hinge roller 8 clamped therebetween, and the hinge clamp 21 of the hinge member 2b of the sash 5 includes a hinge roller 8 rotatably positioned between the clamps 21 of the hinge members 2a of the frame 4.
Fig. 2 illustrates the hinge arrangement 1 without the profile elements 3. As can be seen, the hinge members 2a of the frame 4 are provided on an adjusting plate 6 provided with a bolt 61 for adjusting the position of the hinge arrangement 1 vertically. Moreover, in this embodiment, the mounting element 22b comprises an adjusting system including an axially internally accessible seat 221 in which a mounting frame, not shown, is seated, including two cylindrical threaded mounting projections for the securing bolts 222 which secure the adjusting plate 223 to the mounting element 22b. The eccentric adjusting element, not shown in the drawing, and the adjusting screw perpendicular to the axis of the hinge roller 8, not shown in the drawing, make it possible to adjust the position of the sash in relation to the frame in a plane perpendicular to the sash (so-called "gasket pressure adjustment") and to adjust the depth. After the adjustment is made, the position of the hinge is determined by tightening the securing bolts 222.
As shown in Figs. 3 to 5, the screw mounting system 7 in this embodiment comprises two rivet nuts 71, two mounting bolts 72 and a stiffening member 73. Each rivet nut 71 has a circumferential locking collar 714, an unthreaded thin-walled main cylindrical section 713, and a cylindrical section 712 with internal threads 715 for the mounting bolt 72. The stiffening member 73 is made of polyamide and has two cylindrical locking sleeves 733 with a diameter corresponding to the inner diameter of the internal thread 715 of the cylindrical section 712 of the rivet nut 71. From the inside, the locking sleeves 733 are provided with two-stage cross-section seats 731 whose cross-sectional diameter at the outlet is greater than the inner diameter of the seat 731. In the vicinity of the outlet, the seats 731 have a longitudinal conical section tapering in an axially inner direction, the generatrix of which is inclined at an angle β in the range of several degrees with respect to the axis of the sleeve 733. In another embodiment, the seat 731 may have a two- or multi-stepped orifice.
The locking sleeves are axially internally provided with torque locking means 732, which in this embodiment is in the form of a torque locking plate 732 when the mounting bolts 72 are screwed in. The locking plate 732 also connects the locking sleeves 733 and is screwed to the profile element 3 from its axially inner side by means of mounting screws 74. The purpose of the seat 731 is to pre-guide the mounting bolt 72 so that it freely begins to tap an internal thread therein to prevent the sleeve 733 from being pushed towards the axially inner side. As a result, the use of the mounting screw 74 may not be necessary. In other embodiments not shown, said torque locking means may be provided, for example, by snapping or gluing the locking sleeves 733 to the profile element 3 from its axially inner side, by fitting them in the profile element 3 by pressing, or by attaching them to building partition or sash filling. The sole and obvious purpose of the torque locking means is to prevent the locking sleeves 733 from rotating while the mounting bolts 72 are being screwed in.
The fastening of the hinge member 2 of the hinge arrangement 1 to the profile element 3 by means of a screw mounting system 7 in the embodiment of Figs. 1-4 is as follows. First, at certain points of the thermal insulating element 3, mounting through orifices 35 are made with a diameter substantially corresponding to the diameter of the cylindrical locking sleeve 733 of the stiffening member 73 and the outer diameter of the rivet nut 71. Two stiffening members 73 are then inserted into the orifices 35 from the axially inside, and each of them is screwed to the profile element 3 by means of mounting screws 74. In a manner known from the prior art, a threaded mandrel of a riveter is screwed into the internal thread 715 of each of the rivet nuts 71, and then the rivet nut 71 is inserted into the corresponding orifice 35 from its axially outer side and its circumferential locking collar 714 is pressed against the surface of the orifice. The cylindrical thin-walled section 713 is then upset during the return movement of the riveting mandrel, which is then unscrewed leaving the rivet nut 71 clamped against the wall of the profile element 3 between the locking collar 714 and the upset of the thin-walled section 713. Thereafter, a mounting element 22 of the hinge member is screwed to the rivet nuts 71 via mounting bolts 72. As the screwing continues, the mounting bolts 72 engage the seats 731 of the locking sleeves 733 of the stiffening members 73 in which they tap the threads. This stiffens the fastening of the hinge member 2 and prevents the screws 72 from loosening.
The figures are not necessarily to scale and some features may be exaggerated or minimized. The above embodiments of the present invention are therefore merely exemplary. These and other factors however should not be considered as limiting the scope of the invention, the intended scope of protection of which is indicated in the appended claim.

List of reference numerals

1.: hinge arrangement
2.: hinge member (2a, 2b)
21. hinge clamp
22. mounting element
221. seat
222. securing bolt
223. adjusting plate
23. mounting orifice
3.: thermal insulating profile element
31 first box profile
32 second box profile
33 thermal insulating rib
34. inner thermal insulating space
35. mounting orifice
4.: frame
5.: sash
6.: adjusting plate
61. adjusting bolt
7.: screw mounting system
71. rivet nut
712. cylindrical section
713. thin-walled section
714. circumferential locking collar
715. internal thread
72. mounting bolt
73. stiffening member
731. seat
732. torque locking means (locking plate)
733. locking sleeve
74. mounting screw
8.: hinge roller

Claims

A thermal insulating profile element (3) with a hinge arrangement (1), in particular a door or window hinge arrangement, comprising at least two pivotally connected hinge members (2), wherein at least one of said hinge members (2) has a mounting element (22) with at least two mounting orifices (23) and is suitable to be attached to the thermal insulating profile element (3) of a frame (4) or sash (5) via a screw mounting system (7) including at least two metal mounting bolts (72) passing through the mounting orifices (23) in the mounting element (22) and through the mounting orifices (35) in the thermal insulating profile element (3), wherein the thermal insulating profile element (3) has at least one metal first box profile (31) and at least one metal second box profile (32) connected via at least one thermal insulating element (33) defining an inner thermal insulating space (34), wherein
the screw mounting system (7) comprises at least two rivet nuts (71) fixed in the mounting orifices (35) of the thermal insulating profile element (3) from its axially outer, mounting side of the hinge member (2), at least two plastic cylindrical locking sleeves (733), each provided with a seat (731) whose cross-sectional diameter at the outlet of said seat (731) is greater than inside said seat (731), to pre-guide the mounting bolt (72) so that it freely begins to tap internal thread therein preventing the sleeve (733) from being pushed towards the axially inner side of the building envelope or sash filling, wherein said locking sleeves (733) are provided with torque locking means (732), and are slid into the mounting orifices (35) of the insulating element (3) from its axially inner side of the building envelope or sash filling, wherein the mounting bolts (72) are screwed into said rivet nuts (71) and said seats (731) of said locking sleeves (733), in which they tap internal threads as they are screwed, wherein

said two locking sleeves (733) are paired via a locking plate (732) constituting said torque locking means to form a unitary stiffening member (73), and

said locking plate (732) is screwed to the thermal insulating profile element (3) from its axially inner side by means of mounting screws (74).