Abstract
A corner fitting for a door element, in particular for a glass door element, includes a first fitting element and a second fitting element, which each include, at least sectionwise, a locating portion. The locating portion includes an intermediate layer able to contact the door element. The fitting elements delimit the restraining area, wherein a holding element is in operative connection with a connecting element, which serves for supporting the door element on a center of rotation and/or an axis. At least one variably adjustable distancing element is disposed between the fitting elements outside the locating portions, wherein the distancing element forms a counter-bearing to the locating portions and the door element, which can be restrained in the restraining area.
Claims
1. A corner fitting for a door element, comprising a first fitting element and a second fitting element, wherein each of the fitting elements includes, at least sectionwise, a locating portion, which comprises an intermediate layer configured to contact the door element, and the fitting elements delimit a restraining area, wherein a holding element includes at least one connecting part and is interconnected to a connecting element and is movable in a recess disposed in the fitting elements such that the door element is aligned on a center of rotation and/or an axis, the connecting element includes a plurality of apertures configured for receiving the at least one connecting part, wherein at least one distancing element is disposed between the fitting elements and separate from the locating portions, wherein the distancing element forms a counter-bearing to the locating portions and to the door element, which can be restrained in the restraining area.
2. The corner fitting according to claim 1, wherein the distancing element has a variable adjustable length extending from at least one longitudinal axis of the fitting elements.
3. The corner fitting according to claim 1, wherein the distancing element includes a threaded means, by means of which a variable adjustable length extends from at least one longitudinal axis of the fitting elements.
4. The corner fitting according to claim 1, wherein the fitting elements include a mount separate from the locating portions and at which the distancing element is disposed.
5. The corner fitting according to claim 4, wherein the mount includes a reception, into which the distancing element extends.
6. The corner fitting according to claim 4, wherein the fitting elements are each embodied with a lower recess, in which the connecting element is displaceable, wherein a bottom area is configured as a free space between the fitting elements, and the distancing element is located at approximately the same height as that of the lower recess.
7. The corner fitting according to claim 4, wherein said at least one distancing element and a second distancing element, which extend almost parallel to each other and are separate from the locating portions and which form the counter-bearing to the locating portions and to the door element restrained in the restraining area.
8. The corner fitting according to claim 7, wherein each of the distancing elements, at least via one of their ends, is positively detachably connected in the mount, which is configured at the fitting element.
9. The corner fitting according to claim 4, wherein the mount includes a bore with an internal thread adapted to an external thread of the distancing element and in which the distancing element is screwable and/or from which it is unscrewable.
10. The corner fitting according to claim 1, wherein an attaching mechanism is incorporated at least at the holding element as well as at least at the connecting element, which mechanism is transferable between a released condition and a fixing condition, wherein, in the released condition, the holding element is displaceable at the fitting elements, and in the fixing condition it is fixedly attached to at least one fitting element.
11. The corner fitting according to claim 1, wherein the recess extends along the longitudinal extension at least of one fitting element, and the holding element is supported to be movable with a head part in the recess, wherein, in the fixing condition, the holding element with a resting portion, which as an engagement portion is located at the head part, abuts against the recess.
12. The corner fitting according to claim 10, wherein the attaching mechanism is configured such that during the transfer from the fixing condition into the released condition and from the released condition into the fixing condition, the holding element performs a stroke movement within a free space between the fitting elements.
13. The corner fitting according to claim 11, wherein the connecting element is attached via the attaching mechanism, wherein the head part and the connecting part are aligned vertically to each other.
14. A method for adjusting a corner fitting for a door element, for accommodating different material thicknesses of the door element in the corner fitting, including a first fitting element and a second fitting element, which, each at least sectionwise, include a locating portion, which comprises an intermediate layer able to contact the door element, and the fitting elements delimit the restraining area, wherein a holding element having at least one connecting part is interconnected to a connecting element and is movable in a recess disposed in the fitting elements such that the door element is aligned on a center of rotation and/or an axis, the connecting element having a plurality of apertures configured for receiving the at least one connecting part, at least one distancing element being disposed between the fitting elements and separate from the locating portions, wherein the distancing element forms a counter-bearing to the locating portions and to the door element, which can be restrained in the restraining area, including the following steps: 1) dismounting the fitting elements, 2) adjusting the length of the distancing element extending from at least one of the fitting elements, and 3) mounting the fitting elements.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) In the drawings:
(2) FIGS. 1 A and B show a door fitting as a corner fitting known from the state-of-the-art, which serves for accommodating of door element having different door leaf thicknesses, while inserting different intermediate layers,
(3) FIG. 2 shows an exploded view of the essential structural components of an inventive door fitting, which is configured as a corner fitting, wherein the structural components serve for forming a restraining area and for disposing the corner fitting on a center of rotation,
(4) FIGS. 3 A and B show the reception of a glass door element with a universal glass cutout in the corner fitting of FIG. 2, wherein the fitting element shown in FIG. 2 on the top right is not illustrated, in a top view from the bottom in A), and in a lateral view in B),
(5) FIGS. 4 A and B show the corner fitting of FIG. 2 with just one distancing element with a glass door element with Italian glass cutout, wherein the fitting element shown in FIG. 2 on the top right is not illustrated, in A) in a top view from the bottom, and in B) in a lateral view in, and
(6) FIGS. 5 A and B show the corner fitting of FIG. 2 in a frontal sectional view, wherein in A) a glass door element having a glass thickness of approximately 15 mm is restrained, and in B) a door element having a glass thickness of approximately 8 mm is restrained,
(7) FIG. 6 shows an exploded drawing of an inventive door fitting, which is configured as a corner fitting, with the illustration reduced to attaching means and the distancing elements.
(8) Throughout the different Figures, same parts are always identified by the same reference numerals, and therefore they will be normally only described once.
DETAILED DESCRIPTION OF THE DRAWINGS
(9) FIGS. 1 A and B illustrate a corner fitting 100 known from the state-of-the-art in a frontal view with the part of the corner fitting 100 to be disposed on a center of rotation. The corner fitting 100 comprises two fitting elements 30 and 40, which engage in each other in the lower part via a contour. By means of said contour, the fitting elements 30 and 40 form a reception area, respectively a restraining area 70 for a door element 20. For this purpose, the fitting elements 30 and 40 include respective locating portions 50 and 51, which each abut on both sides against the door element 20 indirectly via an intermediate layer 60. In the frontal view on the corner fitting 100, illustrated in the FIGS. 1 A and B, just the part of the locating portions 50 tapering towards the axis of rotation can be seen. As the locating portions 50 and 51 taper in the direction of a reception for the axis of rotation, below the door element, which includes a cutout, the contour thereof following approximately the locating portions 50, a free space is formed in the frontal part of the corner fitting 100, illustrated in FIGS. 1 A and B, below the door element 20 for being able to accommodate the corner fitting 100, respectively to dispose it on an axis of rotation, respectively a center of rotation.
(10) As shown in FIG. 1 A, the corner fitting 100 known from the state-of-the-art is structurally designed for a door element 20 having a relatively thick glass thickness. This means that the thickness of the intermediate layers 60 can be kept as small as possible, so that a cover placed onto the fitting elements 30 and 40, which surrounds the fitting elements 30 and 40, abuts against the surfaces of the door element 20. In the present case, the cover surrounding the fitting elements 30 and 40 is not illustrated. In case it is desired to utilize the corner fitting 100 illustrated in FIG. 1 A for disposing a door element 20 on a center of rotation, respectively an axis of rotation, and the door element 20 has a smaller glass thickness, the known corner fitting 100 needs to be adapted to the smaller glass thickness of the glass door element by means of intermediate layers 60, wherein the intermediate layers 60 need to be correspondingly thicker, to be able to accommodate, respectively to restrain the glass door element as illustrated in FIG. 1 B, which has a smaller glass thickness than the door element 20 illustrated in FIG. 1 A, in the restraining area between the fitting elements 30 and 40. A cover, respectively a cover element, as the one that would be used in FIG. 1 A for covering the fitting elements 30 and 40, would not abut anymore against the glass door element 20 such that a gap would be visible between the cover and the surfaces of the glass door element 20, and forms on both sides of the door element. In addition, a thicker intermediate layer 60 would result in that clamping, respectively restraining the door element 20 between the fitting elements 30 and 40 in the restraining area 70 would become more unstable, which would in particular affect the longevity of the corner fitting 100. In the extreme case, the material properties of the intermediate layers 60 would change over the time of operational demands on the known corner fitting 100 such that the door element 20 tilts out of the clamping, respectively restraining area 70 and thereby damages for example a floor or gets damages itself. This could be possibly counteracted in that, in case of operational demand on the known corner fitting, the connection between the fitting elements 30 and 40 would be readjusted to press for example an intermediate layer 60 that became brittle or softer with a higher pressure against the surfaces of the door element 20 restrained in the restraining area 70. Also, even if the corner fitting 100 known from the state-of-the-art would be able to solve the indicated problems, namely for example with a cover element drawn deeper, which would abut against the surfaces of the door element 20 when restraining narrower glass door elements 20, and if the materials of the intermediate layers 60 would be improved insofar that they would keep the material properties over the period of operation of the known corner fitting 100, it is still disadvantageous that with narrower door elements 20, i.e. with door elements 20 having a smaller glass thickness, the construction depth of the corner fitting 100 would increase when inserting thicker intermediate layers 60.
(11) FIGS. 2 to 5 illustrate an inventive corner fitting 1, which solves the problems of a corner fitting 100 known from the state-of-the-art.
(12) FIG. 2 shows an exploded view of an inventive corner fitting 1 without the frame surrounding the fitting elements 3 and 4 and without a cover element attached to the frame. At the fitting elements 3 and 4, the inventive corner fitting 1 comprises locating portions 5 and 5.1 configured at least sectionwise, which serve for locating against a door element 2, which is disposed between the fitting elements 3 and 4 and disposed on an axis of rotation, respectively a center of rotation. As the fitting elements 3 and 4 are preferably made from metal, a metal alloy or also for example a plastic material metal alloy, the locating portions 5 and 5.1 respectively comprise an intermediate layer 6, which is between the locating portions 5 and 5.1 and the door element 2. As the door element 2 is preferably a glass door element, on the one hand the intermediate layer serves for preventing the contact of metal on glass. On the other hand, the intermediate layers 6 assist the dampening properties of the inventive corner fitting 1, increase the friction quotient between the glass door element and the fitting elements 3 and 4, and also when the elasticity is lower, they serve as screw securing for the attaching means 14, by means of which the fitting elements 3 and 4 are preferably connected to each other. Preferably, the intermediate layers 6 are made from a plastic material or a rubber elastic material for this purpose. Obviously, the intermediate layers 6 could be configured from ferroelastic soft materials or metal elastomer compounds. In particular, when utilizing the inventive corner fitting 1 for disposing glass door elements 2, which serve as fire-rated doors, highly durable metal elastomer compounds could be of importance for the intermediate layers 6. Respectively one mount 9, which serves for disposing, i.e. for the non-positive and/or positive reception of the variably adjustable distancing elements 8 and 8.1, is intended in the lower area of the fitting elements 3 and 4. In the fitting element 4, the mount 9 is a recess in the shape of a pocket bore with an internal thread. The mount 9 illustrated for the fitting element 3 for disposing, i.e. for the non-positive and/or positive reception of the variably adjustable distancing element 8, is configured as a separate structural component, which engages, respectively can be inserted into for example into a bore, in particular into a pocket hole configured at the fitting element 3. The mount 9 of the fitting element 3, just like the mount 9 of the fitting element 4, includes a recess with an internal thread configured therein for the non-positive and/or positive connection to the variably adjustable distancing elements 8 and 8.1. As illustrated in the following FIGS. 3 and 4, depending on the glass cutout of the door element 2, the mount 9 inserted into the fitting element 3, respectively the distancing element 8 disposed at the fitting element 3 via the mount 9, can be optionally foregone, which, however, does not affect the functioning of the remaining distancing element, in this case the distancing element 8.1, nor does it affect the functioning of the corner fitting 1. By screwing, respectively unscrewing the distancing elements 8 and 8.1 into respectively out of the recess configured as an internal thread of the mount, the distance between the fitting elements 3 and 4, which is given by the material thicknesses of the door element 2 restrained there between, can be variably and preferably infinitely variably replicated, such that the variable distancing elements 8 and 8.1, without having to replace them, form a fully functional counter-bearing to the locating portions 5 and 5.1 and the door element 2 which can be restrained in the restraining area 7, and always depending of the material thickness of the door element.
(13) A connecting element 11, which is operatively connected to a holding element 10, serves for supporting the door element 3 on the center of rotation 2 and/or the axis. The holding element 10 includes a head part 10.1 and a connecting part 10.2. In the present case, the connecting element 11 is non-positively and/or positively operatively connected at the connecting part 10.2 to the holding element 10 and together with the connecting element 11 forms the attaching mechanism. The holding element 10 being in operative connection with the connecting element 11 is supported via the head part 10.1 to be movable in a free space 13 configured as a recess in the shape of a groove in the fitting element 3 and the fitting element 4. In this case, the free space 13 is configured in the shape of recess configured as a groove parallel to the longitudinal extension of the fitting elements 3 and 4. The holding element 10 and the connecting element 11, which is in operative connection via the attaching elements 15, are thereby displaceable parallel in the free space 13, i.e. with regard to, respectively in the longitudinal extension of the fitting elements 3 and 4. As the connecting element 11 with the holding element 10 is displaceable in relation to a restrained door element 2 in the opposite direction, the door element 2 can be infinitely variably aligned to a center of rotation for example in its position in a door frame or an all glass installation. In the event e.g. the center of rotation, respectively the axis of rotation of the door element 2 is located outside the ranges determined for the usual standardized centers of rotation, namely outside of 55 mm, 65 mm or 70 mm, the door element 2 may be aligned to the center of rotation and/or the axis by displacing the holding element 10 with the connecting element 11, which is operatively connected to the holding element 10. In the present case, the holding element 10 and the connecting element 11 are configured as two interconnected structural components comprising the attaching mechanism, which presently is incorporated in both structural components, namely in the holding element 10 and in the connecting element 11. For transferring the attaching mechanism form the released condition, in which the holding element 10 is movable in the longitudinal extension of the fitting elements 3 and 4 in the free space 13 configured as a recess, into the fixing condition, the attaching elements 15, which connect the holding element 10 via the connecting part to the connecting element 11, are screwed into the through-holes 18. When screwing the attaching elements 15 into the connecting part 10.2 of the holding element 10, the head part 10.1 of the holding element gets clamped at least sectionwise non-positively in the free space 13 configured as a recess in the form of a groove or a slot, on both sides of the fitting elements 3 and 4. Thus, in the fixing condition of the attaching mechanism, the displaceability of the holding element 10 and of the connecting element 11 operatively connected to the holding element 10 is disabled, respectively the holding element 10 is immobilized at the fitting elements 3 and 4.
(14) As already described, attaching elements 15, which pass through through-holes 18 in the shape of bores configured in the connecting element 11, serve for the non-positive and/or positive connection between the connecting element 11 and the holding element 10. Advantageously, the through-holes 18 or bores are embodied in the shape of internal thread bores. Advantageously, the attaching elements 15 configured in the shape of screws engage in the through-holes 18 embodied as internal thread bores. For disposing the door element 2 on a center of rotation and/or an axis, a reception 16 is configured almost in the center of the connecting element 11. Advantageously in this case, the reception 16 is adaptable to the center of rotation and/or the axis, for example by means of different adapter inserts.
(15) As, in the present exemplary embodiment, the connecting element 11 is a single component of the corner fitting 1, obviously the latter may be variably connected also with differently sized receptions 16 to the holding element 8. For connecting the holding element 10 to the connecting element 11, the connecting element 11 has apertures 17 configured in the area of the through-holes 18, which serve for accommodating the connecting part 10.2 of the holding element 10, which in the present case is configured as a tappet. The tappets have respectively one bore 19, through which the attaching elements 15 engage, which are guided in the through-holes 18 and thereby non-positively and/or positively connect the connecting element 11 to the holding element 10. The head part 10.1 of the holding element disposed orthogonally to the connecting part 10.2 is guided, respectively retained in the free space 13 configured as a recess in the fitting elements 3 and 4. For this purpose, the head part 10.1 has resting portions 12, which reach abutment at locating surfaces configured in the free space 13. By tightening the attaching elements 15 and by the resting portions 12 of the head part 10.1 of the holding element 10 abutting against the locating surfaces of the free space 13 of the fitting elements 3 and 4, an increased static friction is generated between the resting portions 12 of the head part 10.1 of the holding element 10 and the locating surfaces of the free space 13, and thus results in a non-positive connection between the holding element 10 and the fitting elements 3 and 4. The non-positive connection between the holding element 10 and the free space 13 of the fitting elements 3 and 4 may be even increased in that the resting portions 12 of the head part 10.1 of the holding element 10 include a ribbing on the surface, for example a diamond-shaped ribbing, which engages in a ribbing configured in the locating surfaces of the free space 13 such that in addition to the non-positive connection also a positive connection is created between the holding element 10 and the fitting elements 3 and 4. For increasing the clamping, i.e. the friction effect between the holding element, in particular between the engaging, respectively resting portion 12 and the free space 13 configured as a recess 11, advantageously, the engaging, respectively resting portion 12 includes a ribbing. Obviously, the clamping of a holding element 10 configured as a clamping plate, may just be effected by a non-positive connection.
(16) The FIGS. 3 A and B show the corner fitting 1 illustrated in FIG. 2 without the fitting element 4, in A in a top view from the bottom and in B in a lateral view. Also a frame surrounding the fitting element 3 and a cover, respectively a cover element fitted onto said frame are not illustrated in FIGS. 3 A and B for the sake of clarity. As illustrated in the FIGS. 3 A and B, the distancing elements 8 and 8.1 are disposed parallel to each other outside the locating portion 5 almost at the same height of a lower recess 13.1 in the bottom area 13.2 of a free space formed between the fitting elements 3 and 4. In this case, the lower recess 13.1 serves for the displaceability of the connecting element 11 with the holding element 10 parallel to the longitudinal extension of the fitting elements 3 and 4. The locating portion 5 is adapted to the glass cutout of the door element 2 restrained in the corner fitting 1. The locating portion 5 just as the intermediate layer 6, which is surrounded by the locating portion 5, in the right part illustrated in FIG. 3, extend over the entire height of the fitting element 3 and taper to the left and following the glass cutout, such that below the glass cutout, the free space is created for the reception of the holding element 10 and the connecting element 11, which is operatively connected to the holding element 10, as well as for disposing the distancing elements 8 and 8.1 between the fitting elements 3 and 4. In the present case, the glass cutout configured in the door element 2 is a universal glass cutout. As the extension of the variably adjustable distancing elements 8 and 8.1 is adaptable to the glass thickness of the restrained door element 3, all door elements with a universal glass cutout having different glass thicknesses can be restrained by the inventive corner fitting 1 and be disposed for example on an axis of rotation.
(17) FIGS. 4 A and B likewise show the corner fitting 1 of FIGS. 2 and 3, wherein however here a door element 2 having an Italian glass cutout is restrained between the fitting elements 3 and 4. Presently, for the purpose of illustration, just the fitting element 3 is illustrated. In this case, a top view from the bottom is shown in FIG. 4 A, and a lateral view of the inventive corner fitting 1 is shown in FIG. 4 B. As can be seen in particular in Figure B, the Italian glass cutout superimposes the position for the second distancing element 8. Insofar, here just the distancing element 8.1, which is inserted into the aperture 9 of the fitting element 3, serves as a counter-bearing to the locating portion 5 and 5.1 and the door element 2 restrained between the fitting elements 3 and 4. As the extension of the variably adjustable distancing elements 8 and 8.1 is adaptable to the glass thickness of the door element 3, all door elements with an Italian glass cutout having different glass thicknesses can be restrained by the inventive corner fitting 1 and be disposed for example on an axis of rotation.
(18) The advantageous functioning of the inventive corner fitting 1, namely in particular the consistent construction depth thereof with the same intermediate layers 6 is represented in an impressive way by illustrating the inventive corner fitting in a frontal sectional view in the FIGS. 5 A and B.
(19) In FIG. 5 A, a door element 2 is clamped between the fitting elements 3 and 4, which compared to the door element 2 of FIG. 5 B has a glass thickness which is almost twice as thick. By way of example the door element 2 has a glass thickness of 15 mm in FIG. 5 A. By way of example the door element 2 in FIG. 5 B has a glass thickness of just 8 mm. As can be seen in both FIGS. 5 A and B, the distances between the fitting elements 3 and 4 and the door element 2, namely seen towards the surfaces thereof, are identical, because the intermediate layers 6 remain the same, namely when comparing the FIGS. 5 A and 5 B, they have the same material thickness, even though the glass thickness of the restrained door element is almost half as thick. Thus, independently of the glass thickness of the accommodated door element 2 and independently of the size of the restraining area 7, the construction depth of the inventive corner fitting 1 can remain constant. As pressure is built-up in the upper area of the corner fitting 1, namely between the fitting elements 3 and 4 on both sides of the door element 2 by tightening the attaching means 14, wherein the force applied for the pressure approximately in the center of the leaf thickness of the door element 2, i.e. almost in the center of the restraining area 7 in the resultant, is equal to zero, in the lower area of the corner fitting 1, namely between the fitting elements 3 and 4 outside the restraining area 7, a similar ratio of forces needs to be generated between the fitting elements 3 and 4. This is realized according to the disclosure by disposing the distancing element 8.1, which extends between the fitting elements 3 and 4 outside the restraining area 7 in the free space formed between the fitting elements 3 and 4 in the bottom area 13.2 between the fitting elements 3 and 4 and props up against the fitting elements 3 and 4. The size of the free space in the bottom area 13.2 between the fitting elements 3 and 4 in FIG. 5 B is so small that the fitting elements 3 and 4 almost contact each other. In contrast thereto, the free space in the bottom area 13.2 between the fitting elements 3 and 4 as illustrated in FIG. 5 A, is considerably larger. In this case, the adjustable length of the distancing element 8.1 in its extension direction is determined by the glass thickness of the door element 2. It can be seen that in FIG. 5 A, the length of the extension of the distancing element 8.1 between the fitting elements 3 and 4 is larger than the length of the extension of the distancing element 8.1 between the fitting elements 3 and 4 in FIG. 5 B, wherein however the overall length of the distancing element remains the same. In this case, the difference of the glass thickness of FIG. 5 A to the glass thickness of FIG. 5 B determines the length difference of the extension between the distancing element 8.1 of FIG. 5 A and the distancing element 8.1 of FIG. 5 B, i.e. the adjustment of the length of the extension of the variably adjustable distancing element 8.1.
(20) FIG. 6 shows an exploded view of an inventive corner fitting 1 wherein like in FIG. 2, a frame surrounding the fitting elements 3 and 4 and a cover element attached to the frame are not illustrated. Unlike the corner fitting illustrated in FIG. 2, for the sake of clarity, the illustration of the corner fitting shown in FIG. 6 is reduced to the attaching means 14 and the distancing elements 8 and 8.1 and the counter-holding means 20, respectively the mounts 9 thereof However, the reduced illustration should not interfere with the functioning of the inventive corner fitting 1. The corner fitting 1 illustrated in FIG. 6 rather fulfills all functions of the corner fitting 1 illustrated in FIG. 2.
(21) Respectively one mount 9, which serves for disposing, i.e. for the screwing and unscrewing of the variably adjustable distancing elements 8 and 8.1, is provided in the lower area of the fitting elements 3 and 4. In the fitting element 4, the mount 9 for a reception 9.1 is provided in the shape of a bore with internal thread, which serves at least for the positive reception of the distancing elements 8.1. The mount 9 illustrated for the fitting element 3 for screwing and unscrewing the distancing element 8 is configured as a separate structural component, which engages, respectively can be inserted into for example a bore, in particular into a pocket hole configured at the fitting element 3. The mount 9 of the fitting element 3, just like the mount 9 of the fitting element 4 as well, includes a reception 9.1, which serves for screwing and unscrewing the distancing element 8. In the back part of the mount 9, the latter includes a sleeve-like extension 22, which serves for extending the bore, into which the distancing element 8 is screwable respectively unscrewable, by the length of the extension 22, and serves the purpose of screwing a distancing element 8 into the mount 9, which is lengthened by the length of the extension 22. As already illustrated in the FIGS. 3 and 4, depending on the type of the glass cutout of the door element 2, optionally the mount 9 inserted into the fitting element 3, respectively the distancing element 8 inserted at the fitting element 3 via the mount 9, can be optionally foregone, which, however, does not affect the functioning of the remaining distancing element, in this case the distancing element 8.1, nor does it affect the functioning of the corner fitting. As the screwable and unscrewable distancing elements 8 and 8.1 offer the possibility of extending the restraining area 7 to a maximum, usually longer attaching means 14 are required with increasing door leaf thickness, in particular with increasing glass thickness. However, for not having to include attaching means 14 of different lengths when shipping the inventive corner fitting 1, the attaching means 14 are non-positively and/or positively coupled respectively connected, which in the present case are embodied as riveting nuts, which pass through the fitting elements 3 and 4 and which, compared to simple nuts, include a longer thread, respectively a longer threaded portion, which extends between the two fitting elements 3 and 4. In addition, the thread or the threaded position of the counter-holding means 14.1 may be disposed at least slightly offset to the attaching means 14 such that the fitting elements 3 and 4 mutually brace, when screwing the attaching means 14 into the counter-holding means 14.1. This configuration and disposition of the counter-holding means 14.1 additionally allows for guaranteeing that sufficient thread, respectively internal thread is provided for being able to transfer the required tightening torques from the attaching means 14 guided in the counter-holding means 14.1. For preventing damage to the door element 2 in the area of the through-hole of the attaching means 14, respectively of the counter-holding means 14.1, a sleeve 21 can be pushed or screwed at least over the attaching means 14, which sleeve is positioned at least sectionwise over the threaded portion, i.e. the part or area of the counter-holding means 14.1, which contacts the door element 2 in the restraining area 7 in the through-hole. Particularly preferred, the sleeve 21 can be configured from a plastic material or a rubber elastic material. It is in particular preferred, if the sleeve 21 is cut from a PVC-tube.
(22) Preferably, the counter-holding means 14.1 are configured from a polygon shank, preferred a hexagon shank, which engages in a polygon recess or preferred in a hexagon recess in the fitting elements 3 and 4, whereby the counter-holding means 14.1 are torque-proof disposed in the fitting elements 3 and 4. Thereby, when screwing in, respectively unscrewing from the attaching means 14 from the counter-holding means 14.1, the mounting of the attachment of the corner fitting 1 to the door element 2 can be simplified.
