CONCEALED HINGE FOR A DOOR OR WINDOW AND DOOR OR WINDOW EQUIPPED WITH SUCH MECHANISM AND METHOD FOR MOUNTING A LEAF IN A FIXED FRAME OF A WINDOW OR DOOR

Abstract

 Concealed hinge for attaching a leaf (6) of a door or window (4) in a fixed frame (3), said leaf (6) being composed of hollow leaf profiles (5), characterised in that the hinge (1) is composed of a frame section (8) and a leaf section (9) which are hingeably connected to each other by means of a shaft (10), whereby the leaf section (9) is provided with a hinge leaf (23) intended to be attached with a supporting surface (30) against a wall (5e) of a leaf profile (5), whereby the hinge (1) is further provided with an anchor (25c), intended to be anchored in a hole (26) in said wall (5e) and which is provided with a plug (28) and whereby the hinge leaf (23) along an edge (23b) in its supporting surface (30) is provided with a sunken recess (31) in which a clip mechanism (32) is fitted in which said plug (28) can be clipped in a direction parallel with the supporting surface (30) and located in a plane perpendicular to the axial direction of the shaft (10).

Description

[0001] The present invention relates to a concealed hinge for a door or window, particularly for a door or window with a fixed frame and a leaf that is suspended rotatably around a vertical shaft in the fixed frame by means of one or more concealed hinges.

[0002] Hinges are typically formed by a frame section that is mounted on the frame and a leaf section that is mounted on the leaf, said sections being hingeably connected to each other by means of a hinge shaft.

[0003] Hinges are known which in a mounted condition partly protrude outward with their hinge shaft when the window or the door is closed.

[0004] With such hinges the leaf can be mounted relatively easy in the frame by first removing the hinge shaft and mounting the loose components of the hinge on the frame and on the leaf and then, with the frame on a table or the like, laying the leaf in the frame and fitting the hinge components in each other to then mount back the hinge shafts along the outside. However, this requires that the hinge shafts can be put back along the outside.

[0005] Hinges with a hinge shaft protruding outward are described in WO 03/029589 and WO 98/22680 whereby in these cases the hinge shaft does not have to be dismantled to mount the leaf, for which the hinge component consists of two components, more specifically a hinge leaf that is hingeably connected to the frame section and a clip section that is mounted on the leaf and that is provided with a clip mechanism to clip the hinge leaf in the clip section when mounting the leaf.

[0006] In this case the window or door need to be mounted with the frame and leaf in vertical position and the hinge leaf turned open, which results in an unstable condition of the hinge leaf when clipping it in, such that the mounting is difficult and requires at least two people to work safely.

[0007] Unlike the known hinges with an external hinge shaft, the invention more specifically relates to a concealed hinge as is typically applied for a door or window, the fixed frame and the leaf of which contain a frame that is made up of hollow profiles composed of several profiles, more specifically two outer shells, respectively on the outside and on the inside of the door or window, and possibly an intermediate shell in between, whereby the shells are connected to each other by means of so-called insulating bars which form a thermal break between both sides of the door or window.

[0008] The frame profiles and the leaf profiles are then provided with a lip with which these profiles overlap in closed condition of the door or window and to which a seal is fitted for the sealing between the frame profiles and the leaf profiles.

[0009] A concealed hinge refers to a hinge that is built into the space between the leaf and the fixed frame, more specifically in the space which in a closed door or window is delimited between the opposite walls of the frame and of the leaf and said lips, such that the hinge is not visible when the door or window is closed.

[0010] This means that the known method of mounting the leaf in the frame with dismantled hinge shaft is not possible in this case as the hinge shaft cannot be put back.

[0011] A concealed hinge is known from DE 20 2010 004 163 which is made up of a frame section that is built into the frame and a leaf section that is built into the leaf, more specifically on the level of recesses which have been made in said opposite walls of the frame and of the leaf, whereby both these sections are hingeably connected with each other by means of a shaft.

[0012] A disadvantage of this hinge is that a recess has to be milled in the leaf, which considerably weakens the leaf, implies extra work and moreover can cause a thermal bridge between thermally insulated chambers of the profiles of the leaf.

[0013] In this case the leaf also needs to be mounted in the frame in vertical position and with the leaf and the hinge in opened position, which makes the mounting more difficult in this case too. Furthermore, only few workshops are equipped for this.

[0014] The purpose of the present invention is to provide a solution to one or more of the aforementioned and other disadvantages.

[0015] To this end the invention relates to a concealed hinge the leaf section of which is provided with a hinge leaf that is connected with a frame section and is intended to be attached with a supporting surface mounted against a wall on the outer contour of a leaf profile and with a first side edge oriented toward the hinge side of the leaf, whereby the hinge is further provided with an anchor separate from the hinge leaf which is intended to be anchored in a hole in said wall and which is provided with a plug and whereby the hinge leaf along said first side edge in its supporting surface is provided with a sunken recess, in which a clip mechanism is fitted in which said plug can be clipped in a direction parallel with the supporting surface and located in a plane perpendicular to the axial direction of the shaft.

[0016] Such hinge makes it possible that the leaf provided with said plug can be hooked in the leaf section of a hinge premounted on the frame and at the same time can be clipped in a direction perpendicular to the plane of the fixed frame and therefore without movement parallel to this plane.

[0017] Therefore, the leaf can only be hooked with a horizontal movement in a vertically positioned frame without any room being needed in the fixed frame for a vertical movement.

[0018] This also facilitates the mounting of the leaf in a workplace whereby the frame lies flat on a horizontal table, by holding the leaf horizontally with its plugs aligned above the clip mechanisms of the hinges premounted on the frame and then lowering the leaf until the plugs snap into place.

[0019] Preferably, the clip mechanisms are such that the plugs cannot be unintentionally removed from them, thus preventing accidents.

[0020] Preferably, means are provided to free the plugs, if desired, from their clipped position, if desired, for example, for a repair or the like.

[0021] According to a preferred characteristic, the supporting surface of the hinge leaf is provided over a certain width from its said edge with a chamfer or rounding and the hinge leaf on its opposite edge is provided with one or more passages for screws for attaching the hinge leaf in corresponding anchors which are pre-anchored in said wall of the leaf profile.

[0022] This chamfer ensures that when tightening said screws in the anchors, the hinge leaf is tilted and thus clamped to the head of a plug on the opposite edge of the hinge leaf, which ensures a firm connection.

[0023] According to another aspect of the invention, the leaf section of the hinge is made with a movable section, the lateral distance of which to the hinge leaf is adjustable.

[0024] This allows the lateral position of the leaf in the fixed frame to be adjusted, which is necessary in view of the inevitable tolerances in the manufacture of the door or window and to compensate for deformations under the influence of the weight of the door.

[0025] The invention also relates to a door or window with a fixed frame in which a leaf is hingeably suspended by means of concealed hinges as described above, whereby the leaf is composed of leaf profiles with a wall with a stop lip and whereby the hinges with their hinge leaf are attached to said wall with the recess in the first side edge oriented toward the stop lip and attached by means of at least two anchors, at least one anchor of which is made with said plug which protrudes from the wall and at least one other anchor that is provided for attaching the hinge leaf with a screw through said passage in the hinge leaf.

[0026] The invention also provides for a method for mounting a leaf in a fixed frame of a door or window, said method comprising the following steps:

• providing a concealed hinge according to the invention with a leaf section with a hinge leaf with a supporting surface within which, along a first side edge a sunken recess is provided with a clip mechanism therein;
• mounting the hinge on or in the fixed frame with the hinge in closed condition and the recess oriented toward the mounting side of the leaf;
• providing a plug separate from the hinge leaf on a wall of the leaf on which the hinge must be mounted, it being possible to clip said plug in said clip mechanism;
• positioning the leaf approximately parallel with the opening of the door or window in the fixed frame and with the plug opposite the clip mechanism of the hinge;
• clipping the leaf in place, in a direction essentially perpendicular to said opening, after which the leaf can be released to fix the leaf to the hinge leaf.

[0027] Preferably, a hinge is provided, the supporting surface of the hinge leaf of which is provided with a chamfer and the plug of which is provided with a widened head, whereby the hinge leaf is fixed to the leaf by means of at least one extra screw on the opposite edge of the hinge leaf in order to clamp the hinge leaf by a lever action against the head of the plug.

[0028] Preferably, the hinge leaf is fixed to the leaf by means of at least two extra screws on the opposite edge of the hinge leaf in order to fix the hinge leaf at least with a three-point attachment, more specifically on the level of the plug and on the level of at least two additional screws.

[0029] With the intention of better showing the characteristics of the invention, hereinafter, by way of an example without any limiting nature, a preferred embodiment is described of a concealed hinge according to the invention for a door or window and of a door or window equipped with such mechanism, and of a preferred method for mounting a leaf in a fixed frame using concealed hinges according to the invention, with reference to the accompanying drawings, wherein:

figure 1 schematically shows a perspective view of a part of a door with a concealed hinge according to the invention;

figure 2 shows the same view as that of figure 1, but with the concealed hinge in non-mounted and opened condition;

figure 3 shows the concealed hinge of figure 2 in closed condition;

figure 4 shows a view according to the arrow F4 in figure 3;

figure 5 shows a cross-section according to line V-V in figure 1 with the door in open condition;

figure 6 shows the same cross-section as of figure 5, but with the door in closed condition;

figure 7 shows the hinge of figure 3 in disassembled condition;

figure 8 shows a cross-section according to line VIII-VIII in figure 2 during a first step of mounting the hinge on the fixed frame of the door;

figure 9 shows a view in the direction of arrow F9 in figure 8;

figures 10 and 11 illustrate further consecutive steps of mounting the hinge on the fixed frame;

figure 12 shows a view as that of figure 9 but in the mounted condition of figure 11;

figure 13 shows a cross-section according to line XIII-XIII in figure 12;

figure 14 shows a next step in the mounting of the leaf on the hinge of figure 11;

figure 15 shows a cross-section according to line XV-XV in figure 14;

figures 16 and 17 are consecutive positions in the mounting of the leaf;

figure 18 shows the same cross-section as that of figure 14, but for the mounted condition of figure 17;

figure 19 shows a next step in the mounting of the leaf;

figure 20 shows the cross-section of figure 18 after the step of figure 19;

figures 21 and 22 are an illustration of a step during the dismantling of the leaf from the hinge;

figure 23 shows a perspective view of the section indicated in figure 7 with the frame F23, but seen from the back;

figure 24 shows a step during the lateral adjustment of the leaf.

[0030] Figure 1 shows a concealed hinge 1 according to the invention positioned between a frame profile 2 of a fixed frame 3 of a door 4 and a leaf profile 5 of a rotatable leaf 6 of the door 4.

[0031] In the example shown, a door 4 that opens inwards is shown, whereby the leaf 6 is opened from the outside A to the inside B. In this case, the inside B is also referred to as the hinge side B and the outside A the non-hinge side A.

[0032] Obviously, the invention is also applicable to a door opening outward, in which case the hinge side and the non-hinge side are then switched.

[0033] The frame profiles 2 and the leaf profiles 5 are profiles with several hollow chambers, whereby the profiles are thermally insulated and composed of a hollow shell 2a and 5a on the non-hinge side A of the door, a hollow shell 2b and 5b on the hinge side B of the door and a hollow intermediate shell 2c and 5c in between and whereby these shells are connected to each other by means of insulating bars 2d and 5d made from a thermally insulating material.

[0034] The walls 2e and 5e of the frame profile 2 and of the leaf profile 5, which in closed condition of the door are oriented toward each other, are thus partially delimited by two insulating bars 2d and 5d.

[0035] These walls are provided with a stop lip, 2f on the non-hinge side A for the frame 2 and 5f on the hinge side B respectively, in the known way.
The hinge 1 is composed of a frame section 8 for attaching on the frame profile 2 and a leaf section 9 for attaching on the leaf profile 5, said sections 8 and 9 being hingeably connected to each other by means of a shaft 10.

[0036] By way of example five-chamber profiles are described and shown in the figures here, although the invention also applies to three-chamber profiles whereby there is no intermediate shell, but only two shells that are directly connected with each other by insulating bars.

[0037] In a said wall 2e in the frame profile 2, a recess 11 has been milled on the level of one of the insulating bars 2d, said recess 11 forming an access to a hollow chamber 2g of the frame profile 2. By making the recess 11 in only one single insulating bar 2d in the case of a five-chamber profile, the second insulating bar 2d remains intact such that on the level of the recess 11 no thermal bridge can form.

[0038] In closed condition of the door 4, the hinge 1 is concealed in said hollow chamber 2g of the frame profile 2 and in the space 12 between the walls 2e and 5e of the frame profile 2 and of the leaf profile 5 facing each other.

[0039] By milling the recess 11, certain details 13 of the frame profile 2 become available in the form of ribs, edges or the like that can be used for clamping the frame section 8 of the hinge 1, depending on the design of the frame profile 2.
The frame section 8 of the hinge 1 contains two clamping blocks 14 which can be clamped at a distance from each other on the ends of the recess 11 in the frame profile 2 by means of a clamping plate 15 which supports on the frame profile 2 and in which a passage 16 is provided for a screw 17 which is screwed in a screw hole 18 of the clamping blocks 14 to thus tighten the clamping block 14 toward itself to clamp one or more of said details 13.

[0040] The passage 16 is in the form of a slotted hole that allows the clamping block 14 to be slid in the axial direction of the shaft 10 in relation to the clamping plate 15.

[0041] In the example shown, the clamping plate 15 is provided with two parallel edges 19, in the example respectively in the form of a curved lip 19a with which the clamping plate 15 can be hooked in a fitting groove 13a or other detail on one side of the recess 11 and in the form of a tooth 19b with which the clamping plate 15 can rest on an edge 13b or other detail on the other side of the recess 11.

[0042] In the example shown, the clamping blocks 14 are provided with a protrusion 14a that can grip behind a roll-in tooth 13c or another detail of the frame profile 2 and can be tightened against it by screwing said screw 17, as shown in figure 11.

[0043] The clamping blocks 14 are provided with a drilled hole 14b for the shaft 10 of the hinge 1, said drilled holes 14b being oriented vertically in each other's extension in a mounted condition and located up to a certain depth D of the wall 2e in the hollow chamber 2g, because the shaft 10 is located at a distance from the side of the clamping blocks 14 facing the clamping plate 15.

[0044] The shaft 10 is fitted with its ends in the drilled holes 14b and clamped therein by means of clamp screws 14c which are screwed in a radially arranged threaded hole 14d in the clamping block 14 or in any other way.

[0045] The frame section 8 of the hinge 1 is provided with a height adjustment with which the height of the leaf 6 in the fixed frame 3 can be adjusted by sliding the clamping blocks 14 radially in relation to the clamping plates 15.

[0046] To this end, the clamping plates 15 are provided with a leg 20 at their axial ends facing away from each other, which is inserted through the recess 11 in the frame profile 2 in the hollow chamber 2g of this profile 2 and is located next to a clamping block 14 opposite an external end wall 14f of the clamping block 14 facing away from the shaft 10.

[0047] The leg 20 of the bottom clamping plate 15 rests on the bottom end of said recess 11 as shown in the cross-section of figure 13, or on another detail 13 of the chamber 2g.

[0048] The clamping blocks 14 can be slid axially in the chamber 2g by means of an adjustment screw 21 which can be screwed in and out in the direction of said leg 20 of the clamping plate 15 in a thread 14e in the clamping block 14 with its tip resting on the leg 20, preferably on a supporting surface of the leg 20 perpendicular to the adjustment screw 21.

[0049] The thread 14e extends through the clamping block 14 from an inner end wall to the outer end wall 14f in a slanting direction in relation to the axial direction and away from the clamping plate toward the leg 20 and with its entry for the adjustment screw 21 located at a radial distance from the shaft 10 and located between the shaft 10 and clamping plate 15.

[0050] Consequently, this adjustment screw 21 is easily accessible for a screwdriver 22 or the like to adjust the height of the leaf section 9 of the hinge 1 with the leaf 6 attached thereto in the fixed frame 3 for a door 4 with a mounted and turned open leaf 6.

[0051] The leaf section 9 of the hinge 1 contains a hinge leaf 23 which is attached to said wall 5e of the leaf profile 5 and on which a hook-shaped section 24 is provided which is fitted hingeably with its free end around said shaft 10 of the frame section 8 of the hinge 1 between the two clamping blocks 14 of the hinge 1.

[0052] For attaching the leaf section 9 to the leaf profile 5, this leaf profile 5, as shown in figure 2, is provided with three anchors 25, 25a, 25b and 25c respectively, for example in the form of clamp anchors, blind rivets, screw bushings, rivets or the like, preferably clamp anchors, which are fitted in the known way through holes 26 that were premounted in the wall 5e in question of the leaf profile 5 and which are positioned on the level of the angular points of a triangle 27 as shown in the dashed line in figure 2, the base of which extends in the longitudinal direction of the leaf profile 5 and the third angular point at a transverse distance therefrom and oriented toward the stop lip 5f of the leaf profile 5.

[0053] The two anchors 25a and 25b along the base of said triangle 27 are inserted completely or practically completely through the holes 26 in the leaf profile 5 and are provided with an internal thread oriented transversely along said wall 5e of the leaf profile 5.

[0054] The third anchor 25c is an anchor that is separate from the hinge leaf 23 and separately mounted on the leaf profile 5 and with its body is stuck in the leaf profile 5 and has an end in the form of a semi-cylindrical plug 28 which with a certain length E protrudes from the wall 5e of the leaf profile 5 in a direction perpendicular to this wall 5e and which at its end is provided with a widened head 28a.

[0055] On the side turned away from the stop lip 5f, the plug 28 is provided with a flattening 28b.

[0056] The hinge leaf 23 has two longitudinal opposite side edges, respectively a first and a second edge 23b and 23a, which in mounted condition extend in the longitudinal direction of the leaf profile 5, whereby the first side edge 23b in closed condition of the window is oriented toward the stop lip 5f of the leaf 5 on the hinge side B and the second side edge 23a is oriented toward the stop lip 2f of the frame 2 on the non-hinge side A.

[0057] At a short distance from the first edge 23a, two passages 23c are provided for screws 29 which can be screwed in said screw anchors 25a and 25b for attaching the hinge leaf 23, whereby the hinge leaf 23 is tightened with its supporting surface 30 against the leaf profile 5.

[0058] This supporting surface 30 is provided with a sunken recess 31 with an access 31a along said second edge 23b of the hinge leaf 23.

[0059] This sunken recess 31 contains a clip mechanism 32 in which the plug 28 of the third anchor 25 can be clipped by hooking the plug 28 with its longitudinal axis perpendicular or approximately perpendicular to the supporting surface 30 in a radial direction along said access 31a of the sunken recess 31 in the clip mechanism 32 in a direction that is essentially parallel with the plane of the supporting surface 30 and essentially transversely to the second edge 23b or therefore in a plane which extends essentially transversely on the axial direction of the shaft 10, said clip mechanism 32 being such that the clipped in plug 28 cannot unintentionally be pulled out in the opposite direction.

[0060] In the example shown in figure 15, this clip mechanism 32, which only works in one direction, is formed by two folded leaf springs 33, each with a clamped leg 33a on either side of the sunken recess 31 and a connecting leg 33b perpendicular to this which extends in the sunken recess 31, whereby these last legs 33b are folded such that together they form a double bell-shaped channel 34 as it were that extends in a direction transverse to the second edge 23b of the hinge leaf 23 and which is provided with a first narrowed entry 34a on the end along the side of the second edge 23b and with a second narrowed entry 34b on the other end and with a wider central section 34c in an intermediate location that can form a seat for said protruding plug 28, at least for the section of the plug 28 up to the widened flattened head 28a.

[0061] The leaf springs 33 are clamped in the hinge leaf 23 with the free end 33c of the leg 33a, more specifically in this case between support points 35a and 35b, whereby the legs 33a in resting position extend in a practically parallel way with the second edge 23b.

[0062] In the resting position of figure 15, the legs 33a are against a stop 36 or at small distance therefrom, such that the legs 33a can be pushed in the direction of arrow P away from the edge 23b, whereby the support point 35b serves as inflection point as illustrated in figure 16, but said stop 36 ensuring that the legs 33a cannot spring back in the opposite direction of arrow P beyond their original resting position or can only be pushed a small distance past this resting position.

[0063] It is clear that in said resting position the channel 34 is the narrowest and that by pushing in the leaf springs 33, the channel 34 opens as shown in figure 16.

[0064] By hooking in the plug 28 along the first entry 34a of the channel 34, the leaf springs 33 are pushed inward, whereby the clamped legs can then bend around the inflection point 35b thanks to their spring force, away from said stop 36, all this in such a way that the legs 33b of the channel 34 are first pushed apart as shown in figure 16, and then, with the central section 34c close themselves around the plug 28 again thanks to the spring force of the leaf springs 33 which spring back to their resting position as shown in figure 17.

[0065] However, the plug 28 cannot unintentionally come loose from the clip mechanism 32.

[0066] Indeed, if one wishes to loosen the plug 28 in a reverse direction of arrow P from the clip mechanism 32, the leaf springs are pushed against the stop 36 which prevents the leaf springs from being pushed beyond their resting position and consequently the legs 33b of the channel 34 from being pushed apart.

[0067] To release the plug 28 from the clip mechanism 32, means are provided in the example to, if desired, release the plug 28 from its clipped position from the clip mechanism 32.

[0068] To this end, from the opposite first edge 23a of the hinge leaf 23, a passage 37 is provided in the hinge leaf 23 which extends in the extension of the bell-shaped channel 34 into the sunken recess 31.

[0069] Via this passage 37 the legs 33b of the bell-shaped channel 34 can be pushed apart by means of a tool 38 with a sufficiently wide head 38a to push apart the legs 33b along the second entry 34b of the channel 34 as shown in figure 21, whereby in that case the leaf springs 33 can bend again around the support point 35b, away from the stop 36, such that the first entry 34a of the channel 34 also opens and the plug 28 can be pushed simultaneously using the same tool 38 out of the clip mechanism 32 by pushing this tool 38 on the flattening 28b of the plug 28 as shown in figure 21.

[0070] In the example shown, the tool 38 is formed by a threaded rod 38b which is screwed in said passage 37 and with its head 38a sticks in the recess 31 and which can be screwed in and out with a screwdriver 22 or the like, as shown in figure 22.

[0071] The widened head 28a of the plug 28 also means that the plug 28 cannot unintentionally be pulled out of the clip mechanism 32 in its axial direction.

[0072] Over a certain width from its second edge 23b, the supporting surface 30 of the hinge leaf 23 is provided with a chamfer 30a over an angle H of for example 3 to 4° as indicated in figure 8, or a rounding, such that when tightening the screws 29 along the first edge 23a of the hinge leaf 23, the hinge leaf 23 in the direction of arrow Q, as indicated in figure 18, tilts around the bend line 30b in the transition between the flat section of the supporting surface 30 and the chamfer 30a, causing the hinge leaf 23 to be tightened by the lever action against the widened head 28a of the plug 28, such that the hinge leaf 23 is firmly anchored in three points at the level of the anchors 25 on the leaf profile 5. All play necessary to easily hook in over the plug 28 is removed when screwing it in.

[0073] The lever action can also be applied as a separate aspect of the invention, in other words, independent from the clip mechanism 32 with plug 28, as described above.

[0074] For example, the plug 28 can also be realised in the form of a bolt or screw with widened head 28a, which is pre-screwed into the leaf 6 with a section protruding from the wall 5e, whereas the recess 31 in the hinge leaf 23 on the edge 23b can be replaced for example by a keyhole opening with which the hinge leaf 23 can be hooked over the plug 28 under the widened head 28a without use of a clip mechanism and can then be tightened against the widened head 28a by tightening the screws 29 on the opposite edge 23a of the hinge leaf 23 by the lever action of the chamfer or rounding 30a.

[0075] Obviously, this lever action is also applicable for attaching a hinge to the frame with a hinge leaf on the frame side.
The hook-shaped section 24 of the leaf section 9 of the hinge 1 is moveably attached to the hinge leaf 23 along the first edge 23a of the hinge leaf 23.

[0076] To this end, the moveable hook-shaped section 24 is provided with a slat-shaped foot 24a and the hinge leaf 23 is provided with an upstanding rib 23d with a groove 23e therein which extends in the longitudinal direction of the hinge leaf 23 and in which the foot 24a of the hook-shaped section 24 is fitted with the hook-shaped section oriented toward the second edge 23b of the hinge leaf 23.

[0077] The hinge 1 is provided with an adjustment of the lateral orthogonal distance from the hook-shaped section 24 to the hinge leaf 23.

[0078] To this end, the foot 24a, together with an adjustment bar 39 is fitted in the groove 23e with restricted slideability.

[0079] The adjustment bar 39 is slideable in the longitudinal direction, for example because in the adjustment bar 39, longitudinal slotted holes 39a have been provided and screws 39b which are screwed through these slotted holes 39a in the upstanding rib 23d of the hinge leaf 23.

[0080] The longitudinal position of the adjustment bar 39 is for example adjustable by means of an adjusting screw 40 with an excentric cam 40a or another adjusting means which by rotating the adjustment bar 39 in one or the other direction can slide and which is accessible through an opening in the upstanding rib 23d.
In the foot 24a of the hook-shaped section 24, one or more slotted holes 41 are provided which are slanting in relation to the supporting surface 30 of the hinge leaf 23 and the adjustment bar 39 is provided with one or more pins 42 which are slideably guided in the slotted holes 41, all this such that a rotation of the adjusting screw 40, for example in a direction of rotation according to arrow S in figure 23, causes the adjustment bar 39 to slide in the direction of arrow T and the hook-shaped section 24 to move away from the hinge leaf 23 according to arrow U or toward the hinge leaf when turning the adjusting screw 40 in the other direction of rotation.

[0081] For example, in mounted condition, the adjusting screw 40 is adjustable using a tool as in figure 24.

[0082] This adjustment allows the closed position of the leaf 6 in relation to the fixed frame 3 to be adjusted.

[0083] Said adjustment can, as the case may be, also be realised in other ways.

[0084] The mounting of a leaf 6 in a fixed frame 3 of a door 4 using hinges 1 according to the invention is very simple and as follows.

[0085] In the frame 2 suitable recesses 11 and chamber 2g are milled out for the frame section 8 of the hinges 1 to be mounted.

[0086] In the leaf 6, holes 26 are drilled in the corresponding places for the anchors 25 which are also already premounted.

[0087] Obviously, the recesses 11 and holes 26 with anchors 25 can also already be provided beforehand in the factory.

[0088] The assembled hinges 1 can then be attached to the frame 2, after having removed the clamping plates 15 first.

[0089] The clamping blocks 14 are hereby tilted by the hinges 1 in the recesses 11 and these clamping blocks 14 are anchored by means of the clamping plates 15 which are fitted on the frame 2 and the hinges 1 are solidly fixed by tightening the clamping blocks 14 to the clamping plates 15 using the screws 17 as shown in figures 8 to 12.

[0090] The hinges 1 are then turned to their closed position as shown in figure 14, whereby the supporting surface 30 of the hinge leaves 23 is approximately parallel with the wall 2e of the frame profile 2 on which the hinges 1 are mounted, and therefore perpendicular to the plane of the door opening, such that the access 31a of the sunken part 31 with the clip mechanism 32 therein becomes accessible along the hinge side B of the door 4.

[0091] The leaf 6 is then held approximately parallel to the plane of the door opening and moved in a direction perpendicular thereto in the fixed frame 3 and clipped by clicking the leaf 6 with its plugs 28 in the clip mechanisms 32.

[0092] The leaf 6 can then be released as the plugs 28 are clipped and can no longer unintentionally come loose.

[0093] The leaf 6 can then be opened to screw the hinges 1 on the leaf 6 by tightening the screws 29 in the screw anchors 25a and 25b, such that the hinge leaf 23 is also clamped against the head 28a of the plug 28 by said lever action thanks to the chamfer 30a of the supporting surface 30 of the hinge leaf 23, such that on the leaf a solid three-point connection is realised with the three anchors 25.

[0094] Obviously, a two-point connection with one anchor 25c with a plug 28 and with another anchor 25a for a screw 29 can possibly suffice, whereby this last anchor 25a is located at a longer distance from the stop lip 5f than the anchor 25c with plug 28.

[0095] After attaching the leaf 6 to the hinges 1, the position of the leaf 6 in the fixed frame 3 can be adjusted, whereby for this adjustment the leaf 6 is opened to adjust the position of the leaf section 9 of the hinges 1 in relation to the frame section 8.

[0096] A first adjustment consists in adjusting the height of the leaf 6 in the fixed frame 3 by, as shown in figure 13, loosening or tightening the adjustment screw 21 of the frame section 8 of the bottom clamping block 14, which can easily be done with a screwdriver 22 or the like because this adjustment screw 21 is in an easily accessible place with the leaf in a mounted condition as shown in figure 1. A second adjustment relates to the lateral position of the leaf 6 in the fixed frame 3 which can be adjusted by slightly loosening the screws 39b on the leaf section 9 of the hinges 1 such that the position of the hook-shaped section 24 in relation to the hinge leaf 23 can be adjusted and by then turning the adjusting screw 40 with the excentric cam 40a such that the foot 24a of the hook-shaped section 24 is moved deeper in or out of the groove 23e as shown in the figures 23 and 24.

[0097] After this lateral adjustment, the screws 39b can be fixed to fix the leaf 6 on the hinges 1.

[0098] If it is necessary to loosen the leaf 6 from the fixed frame, it is sufficient to loosen unscrew and remove the screws 29 from the anchors 25a and 25b and subsequently to free the plugs 28 on the leaf 6 from the clip mechanism 32 using the tool 38 to push apart the legs 33b of the leaf springs 33 as shown in the figures 21 and 22.

[0099] Obviously, the frame section 8 of the hinge 1 as described above can also be combined with another leaf section 9, for example of a traditional hinge or vice versa, such that a leaf section 9 of a hinge 1, as described above, can be combined with another frame section 8, for example of a traditional hinge.

[0100] The anchors 25a, 25b do not necessarily need to be executed as clamp anchors, but can for example also be replaced with rivet nuts, screw sockets, tensioning plates or any other means for attaching a screw.

[0101] The clamp anchor 25c for attaching the plug 28 can for example also be replaced by a screw, rivet or the like.

[0102] The present invention is by no means limited to the embodiments described as an example and shown in the drawings, but a concealed hinge according to the invention and a door or window equipped with this can be realised in all kinds of forms and dimensions, without departing from the scope of the invention.

Claims

1. Concealed hinge for attaching a leaf (6) of a door or window (4) in a fixed frame (3), said leaf (6) being composed of hollow leaf profiles (5), characterised in that the hinge (1) is composed of a frame section (8) and a leaf section (9) which are hingeably connected to each other by means of a shaft (10), whereby the frame section (8) is intended to be attached to the frame (3) and the leaf section (9) is provided with a hinge leaf (23) intended to be attached with a supporting surface mounted against a wall (5e) on the outer contour of a leaf profile (5) and with a first side edge (23b) oriented toward the hinge side (B) of the leaf (6), whereby the hinge (1) is further provided with an anchor (25c) separate from the hinge leaf (23), intended to be anchored in a hole (26) in said wall (5e) and which is provided with a plug (28) and whereby the hinge leaf (23) along the first side edge (23b) in its supporting surface (30) is provided with a sunken recess (31) in which a clip mechanism (32) is fitted in which said plug (28) can be clipped in a direction parallel with the supporting surface (30) and located in a plane transverse to the axial direction of the shaft (10).

2. Concealed hinge according to claim 1, characterised in that the clip mechanism (32) is such that the plug (28) cannot unintentionally be removed from it.

3. Concealed hinge according to claim 1 or 2, characterised in that the clip mechanism (32) is formed by two folded leaf springs (33) with a first leg (33a) and a connecting second leg (33b) perpendicular to this, whereby the first legs (33a) on both sides of the sunken recess (31) are clamped with an end (33c) and whereby the second legs (33b) are folded such that together they form a double bell-shaped channel (34) as it were which extends in a direction perpendicular to said first side edge (23b) of the hinge leaf (23) and which is provided with a first narrowed entry (34a) on the end along the first side edge (23b) and with a second narrowed entry (34b) on the other end and with a wider central section (34c) in an intermediate location which can form a seat for said plug (28) .

4. Concealed hinge according to claim 3, characterised in that the hinge leaf (23) is provided with a stop (36) which allows the first legs (33a) to be bent from a resting position to the sunken recess, in other words away from the first side edge (23b), but prevents a reverse bend beyond this stop.

5. Concealed hinge according to claim 4, characterised in that with the leaf springs (33) in resting position, the first legs (33a) are tightened against a corresponding stop (36).

6. Concealed hinge according to claim 4 or 5, characterised in that with the leaf springs (33) in resting position, the first legs (33a) extend essentially in a parallel way with said first side edge (23b) of the hinge leaf (23).

7. Concealed hinge according to any one of the claims 4 to 6, characterised in that with the leaf springs (33) in resting position, the bell-shaped channel (34) is the narrowest.

8. Concealed hinge according to any one of the preceding claims, characterised in that it is provided with means to free the plug (28) if desired from its clipped position in the clip mechanism (32).

9. Concealed hinge according to claim 8 and any one of claims 3 to 7, characterised in that said means are formed by a passage (37) which extends from a second side edge (23a) opposite said first side edge (23b) of the hinge leaf (23) in the extension of the bell-shaped channel (34) into the sunken recess (31) to push apart the second legs (33b) along the second entry (34b) of the channel (34) via this passage (37).

10. Concealed hinge according to claim 9, characterised in that said means contain a tool (38) with a sufficiently wide head (38a) to push apart the legs (33b) along the second entry (34b) of the channel (34).

11. Concealed hinge according to claim 10, characterised in that said tool (38) is formed by the threaded rod (38b) which is screwed in said passage (37) and can be screwed in by its head until it is between the legs (33b) at the second entry (34b) of the channel (34).

12. Concealed hinge according to any one of the previous claims, characterised in that the supporting surface (30) of the hinge leaf (23) over a certain width from said first side edge (23b) is provided with a chamfer or rounding (30a) and that the hinge leaf (23) on its opposite second side edge (23a) is provided with one or more passages (23c) for screws (29) for attaching the hinge leaf (23) in corresponding anchors (25a, 25b) which have been pre-anchored in said wall (5e) of the leaf profile (5).

13. Concealed hinge according to claim 12, characterised in that the chamfer (30a) is realised over an angle (H) of approximately 3 to 4°.

14. Concealed hinge according to any one of the previous claims, characterised in that the leaf section (5) of the hinge (1) is made with a moveable section (24), the lateral distance of which to the hinge leaf (23) is adjustable.

15. Concealed hinge according to claim 14, characterised in that the moveable section (24) is provided with a slat-shaped foot (24a) and the hinge leaf (23) is provided with an upstanding rib (23d) with a groove (23e) therein which extends in the longitudinal direction of the hinge leaf (23) and in which said foot (24a) is fitted slideably together with an adjustment bar (39) which is slideable in the longitudinal direction and is provided with one or more pins (42) which are slideably guided in slotted holes (41) in the foot (24a) and which are slanting in relation to the supporting surface (30) of the hinge leaf (23).

16. Concealed hinge according to claim 15, characterised in that the adjustment bar (39) is adjustably slideable by means of an excentric adjusting screw (40) which is accessible through a hole in the upstanding rib (23d) on the hinge leaf (23).

17. Door or window with a fixed frame (3) in which a leaf (6) is hingeably suspended by means of concealed hinges (1) according to any one of the previous claims, whereby the leaf (6) is composed of leaf profiles (5) with a wall (5e) with a stop lip (5f) and whereby the hinges (1) with their hinge leaf (23) are attached to said wall (5e) with the recess in the first side edge (23b) oriented toward the stop lip (5f) and attached by means of at least two anchors (23), of which at least one anchor (25c) is made with said plug (28) which protrudes from the wall (5e) and at least one other anchor (25) which is provided for attaching the hinge leaf (23) with a screw (29) through said passage (23c) in the hinge leaf (23).

18. Door or window according to claim 17, characterised in that at least one anchor (25a, 25b) or other mounting component for a screw (29) is located further away from the stop lip (5f) of the leaf profile (5e) than the anchor (25c) with plug (28).

19. Method for mounting a leaf (6) in a fixed frame (3) of a door or window (4), characterised in that the method comprises the following steps:

- providing a concealed hinge (1) according to any one of the claims 1 to 16 with a leaf section (9) with a hinge leaf (23) with a supporting surface (30) with a sunken recess (31) therein along a first side edge (23b) with a clip mechanism (32) therein;

- mounting the hinge (1) on or in the fixed frame (3) with the hinge in closed condition and the recess (31) oriented toward the mounting side of the leaf (6);

- providing a plug (28) separate from the hinge leaf (23) on a wall (5e) of the leaf (6) on which the hinge (1) must be mounted, it being possible to clip said plug (28) in said clip mechanism (32);

- positioning the leaf (6) approximately parallel with the opening of the door or window in the fixed frame (3) and with the plug (28) opposite the clip mechanism (32) of the hinge (1);

- clipping the leaf (6) in a direction essentially transversely to said opening, after which the leaf (6) can be released to fix the leaf (6) to the hinge leaf.

20. Method according to claim 19, characterised in that a hinge is provided, the supporting surface (30) of which is provided with a chamfer and that a plug (28) is provided with a widened head (28a), whereby the hinge leaf (23) is fixed to the leaf by means of at least one extra screw (29) on the opposite edge (23a) of the hinge leaf (23) in order to clamp the hinge leaf (23) by a lever action against the head (28a) of the plug (28).

21. Method according to claim 20, characterised in that the hinge leaf (23) on the leaf is fixed by means of at least two extra screws (29) on the opposite edge (23a) of the hinge leaf (23) in order to fix the hinge leaf (23) with at least a three-point attachment, more specifically on the level of the plug (28) and on the level of the at least two screws (29).

22. Concealed hinge for attaching a leaf (6) of a door or window (4) in a fixed frame (3), said leaf (6) being composed of hollow leaf profiles (5), characterised in that the hinge (1) is composed of a frame section (8) and a leaf section (9) which are hingeably connected to each other by means of a shaft (10), whereby the frame section (8) and/or leaf section (9) are provided with a hinge leaf (23) intended to be attached with a supporting surface (30) against a wall (5e) of a leaf profile (5) or frame profile, whereby the hinge (1) is further provided with a plug (28) separate from the hinge leaf (23) which is intended to be attached to said wall (5e) and which is provided with a widened head (28a) and whereby the hinge leaf (23)is provided with a recess (31) on an edge (23b) with which the hinge leaf (23) can be hooked under the widened head (28a) of the plug (28), whereby the supporting surface (30) of the hinge leaf (23) over a certain width from said edge (23b) is provided with a chamfer or rounding (30a) and the hinge leaf (23) on its opposite edge (23a) is provided with one or more passages (23c) for screws (29) for attaching the hinge leaf (23) against the wall (5e) of the leaf profile (5).

23. Concealed hinge for attaching a leaf (6) of a door or window (4) in a fixed frame (3), whereby the hinge (1) is composed of a frame section(8) and a leaf section (9) which are hingeably connected to each other by means of a shaft (10), characterised in that the leaf section (5) of the hinge (1) is made with a moveable section (24) of which the lateral distance to the hinge leaf is (23) adjustable, whereby the moveable section (24) is provided with a slat-shaped foot (24a) and the hinge leaf (23) is provided with an upstanding rib (23d) with a groove (23e) therein which extends in the longitudinal direction of the hinge leaf (23) and in which said foot (24a) is slideably fitted together with an adjustment bar (39) which is slideably adjustable in the longitudinal direction and which is provided with one or more pins (42) which are slideably guided in slotted holes (41) in the foot (24a) and which are slanting in relation to the supporting surface (30) of the hinge leaf (23).

Drawing