fitting

Abstract

The invention relates to a fitting (8) that can be arranged concealed in a rebate of a building element (2) for the relative adjustment of a first building element part (3) with respect to a second building element part (4), comprising a first fitting part (9) and a second fitting part (10), wherein the first fitting part (9) is connected to the first building element part (3) and the second fitting part (10) is connected to the second building element part (4), wherein the first fitting part (9) has a profile element (11) which is rotatably connected to two support arms (12, 13) and a control arm (14) of the fitting (8), and the control arm (14) of the first fitting part (9) has a catch groove (20) and the second fitting part (10) has a catch rivet (21) which can be inserted into the catch groove (20) in the unconnected state of the fitting (8) and in the connected state of the fitting (8) in the Fangnut (20) is included,and wherein the first fitting part (9) is connected to the second fitting part (10) in the connected state by a self-locking connecting element (27).

Description

[0001] The invention relates to a fitting which can be arranged concealed in a rebate of a building element for the relative adjustment of a first building element part with respect to a second building element part, comprising a first fitting part and a second fitting part, wherein the first fitting part is connected to the first building element part and the second fitting part is connected to the second building element part, wherein the first fitting part has a profile element which is rotatably connected to two support arms and a control arm of the fitting.

[0002] The invention further relates to a component with at least one fitting.

[0003] Furthermore, the invention relates to a method for arranging a first component part of a component on a second component part of the component.

[0004] Openable windows are typically installed in a first construction phase, where the so-called frame is installed in the building, and then the sashes are attached or hung on the frame. Various mounting systems are available for this purpose. These are often connected to the counterpart on the frame by means of a pin that is inserted, which locks them in place but can be rotated.

[0005] So-called concealed fittings are also installed on windows and doors, primarily for aesthetic reasons. However, the aforementioned procedure for attaching the sash to the frame is difficult with these, as they usually involve multiple pivot points or sliding movements. Therefore, they are often difficult to install. The locking elements are often not visible, requiring in-depth knowledge of the respective solution.

[0006] In order to achieve a simple and secure option for hanging and unhooking the sash on the window frame with a concealed fitting and at the same time to guarantee the permanently secure opening and closing function for the sash, DE 20 2007 000 693 U1 proposes a fitting arranged concealed in the rebate for turn-tilt windows or doors, in which a sash is held and guided for pivoting at the upper and lower sash edge by a plurality of links, of which a fitting part is provided in the area of ​​the lower sash edge, which consists of a corner hinge fastened to the sash and a corner bearing firmly hinged to a frame via a bearing rail, which are pivotably connected to one another via at least two links, wherein the links have a bolt-like hook on at least one of the free ends and at least one hook has corresponding holding means for releasably fixing to the corner hinge.The corner hinge and the corner bearing provide means for position adjustment in the longitudinal direction of the rebate. When the corner bearing is assembled and connected to the corner hinge, the fitting components assume the pivoted position, and the hooks of the guide rods are aligned with the longitudinal center plane of the fitting assembly. The hooks in the corner bearing and the holes for connecting the corner bearing to the corner bearing are congruently positioned in the longitudinal direction of the fitting component. During assembly, at least one hook can be clipped into the hole, creating a permanently detachably fixed and immovable connection when assembled.

[0007] The prior art also describes various aids for hanging a sash into a frame with concealed fittings. For example, DE 20 2010 003 145 U1 describes an installation aid for windows, doors, or the like with concealed fittings. This aid is attached to the corner hinge and engages behind a partially thickened cross-section of a pin attached to the corner bearing and engaging the corner hinge in the corner area.

[0008] DE 20 2010 003 147 U1 describes an assembly tool for windows, doors or the like with concealed fittings, which is suitable for temporarily fixing a corner bearing on a sash of the window, door or the like in a rotary opening position and against partial or complete falling out.

[0009] The last two publications also summarize very well the problems mentioned above when hanging a window or door sash in a frame with a concealed fitting, so that reference should be made to them as an additional point.

[0010] The object of the present invention was to simplify the hanging of a window or door sash into a frame with a concealed fitting.

[0011] To achieve the object, the fitting mentioned at the outset is provided with the control arm of the first fitting part having a catch groove, the second fitting part further having a catch rivet which can be inserted into the catch groove when the fitting is unconnected and is received in the catch groove when the fitting is connected, and the first fitting part is connected to the second fitting part in the connected state by means of a self-locking connecting element.

[0012] Furthermore, the object is achieved with the component mentioned at the outset, which has the fitting according to the invention.

[0013] In addition, the object of the invention is achieved with the method mentioned at the outset, according to which it is provided that the component has a fitting according to the invention, and that in a first step the catch rivet of the second fitting part is introduced into the catch groove of the control arm of the first fitting part and that the control arm is then moved over the second fitting part, so that subsequently the self-locking connecting element comes into the locking position, in particular comes into engagement with the recess for the connecting element in the control arm.

[0014] The advantage here is that the first component part is already held somewhat in place in the initial phase by the interaction of the retaining groove and retaining rivet, which relieves the assembler when hanging the two component parts and finding the correct position in relation to each other. In addition, arranging the retaining rivet in the retaining groove is a relatively simple process, meaning it can be carried out easily even with heavier components. The retaining rivet is clearly visible during joining, which makes joining easier and more secure. The next step is to simply press the first component part against the first component part so that the self-locking connecting element is moved into the locking position and a stable connection between the two component parts is automatically created.Especially when this locking action is accompanied by a clearly audible "click," the installer automatically receives an acoustic signal indicating that the connection has been successfully formed. This eliminates the need to see the fitting for this process, but allows the first component to be "blindly" hooked or fastened to the first component. This joining movement can occur exclusively in one plane, meaning this type of hooking can be applied equally well to both the top and bottom of the component, and can even be performed simultaneously at the top and bottom of the component.

[0015] According to a preferred embodiment of the invention, the self-locking connecting element can be arranged on the second fitting part and engages into a recess in the control arm when the fitting is connected, thus improving the secure and stable connection of the two component parts and, consequently, the use of the component. In particular, minor signs of wear on the fitting, which may occur, for example, over the course of its service life due to neglected maintenance, have little or no impact on the performance characteristics of the fitting or the component equipped with it.

[0016] According to a further embodiment of the invention, the self-locking connecting element can be provided with a bottom side resting against a spring element, which can improve the reliability of maintaining the locked state of the fitting, since the spring element acts against the release of the lock. Furthermore, the installation space required for the fitting can be reduced by simply moving the control arm over the connecting element. The control arm can then push the connecting element away, and the connecting element can then automatically move into the locked position due to the resulting spring preload. The spring element can therefore save installation space height.

[0017] According to another embodiment of the invention, the self-locking connecting element can have at least one groove on its underside for the engagement of the spring element and at least one raised area relative to the groove. With the aid of the groove, the spring element can engage in the connecting element when the fitting is in the locked position, thus improving the security of maintaining this position. This locking of the spring element can be deliberately released via the at least one raised area for disassembly of the first component by pressing the spring element out of the groove.

[0018] According to a further embodiment of the invention, it is advantageous if the self-locking connecting element is rotatably mounted on the second fitting part. This makes it easier to adjust the connecting element from the closed position to the open position (and vice versa). Particularly in combination with the previously described embodiment with the groove on the underside of the connecting element, the engagement of the spring element in the connecting element can be released relatively easily by rotating it via the raised area.

[0019] It is advantageous for the adjustment of the connecting element from the closed position to the open position (and vice versa) if, according to an embodiment of the invention, the self-locking connecting element has a receptacle for the engagement of a tool.

[0020] To increase the security of the fitting against unintentional opening during use of the component, according to one embodiment of the invention, the control arm can be provided with at least one opening for receiving a securing element. Since the first component part is already secured to the first component part by the automatic locking mechanism, the at least one securing element can be easily installed after the connection has been completed.

[0021] In order to reduce the load on the fitting due to lever forces occurring as a result of the first component part hitting the second component part in the open position of the component, according to a further embodiment of the invention, it can be provided that the control arm has a stop for one of the support arms.

[0022] According to a variant of the invention, a further improvement in safety during assembly of the first component part to the second component part, and also in the assembled state, can be provided by the second fitting part having an angled securing element that engages around the control arm when the fitting is in the closed position. This hook-shaped element can act as a hold-down device for the control arm.

[0023] To improve this effect and increase the hold-down force, one embodiment of the invention provides for an inner surface of the securing element facing the control arm to be formed with a slope. The control arm can slide along this slope and can thus be pressed more securely against the second fitting part.

[0024] In order to reduce the wear of the fitting, according to an embodiment variant of the invention, it can be provided that the two support arms each have a fixed axis of rotation on the control arm in a first end section and a fixed axis of rotation on the profile element of the first fitting part in a second end section.

[0025] According to a further embodiment of the invention, the profile element of the first fitting part can perform a combination of a translational and a rotational movement during the movement from the open position of the fitting to the closed position. A rotational movement is performed in an angular range of at least 5° before reaching the closed position, during which the pivot point shifts by a maximum of 0.9 mm toward the second fitting part. This embodiment can achieve a positive locking mechanism that enables a more secure (and tighter) pressing of the first component part against the second component part.

[0026] In the preferred design variant of the component, the fitting forms a corner bearing of the component, as this particularly highlights the advantages of the fitting for mounting the first component part on the second component part.

[0027] According to one embodiment of the method, the rivet can be inserted into the groove at an opening angle of the fitting between 45° and 85°. While the rivet can also be inserted into the groove at other angles, this angle ensures that, when seals are present between the component parts, no sealing pressure is built up during assembly, thus avoiding the need for additional force.

[0028] For a better understanding of the invention, it is explained in more detail using the following figures.

[0029] They show in a highly simplified, schematic representation: Fig. 1 a component in front view; Fig. 2 a fitting in an oblique view from above; Fig. 3 the fitting after Fig. 2 partly in exploded view and oblique view from above; Fig. 4 the fitting after Fig. 2 in oblique view from below; Fig. 5 the fitting after Fig. 2 partly in exploded view and oblique view from below; Fig. 6 a sequence of positions during the closing of two over the fitting to Fig. 2 interconnected component parts; Fig. 7 shows a section of a variant of the fitting.

[0030] By way of introduction, it should be noted that in the variously described embodiments, identical parts are provided with identical reference symbols or component designations. The disclosures contained throughout the description can be applied analogously to identical parts with identical reference symbols or component designations. Furthermore, the positional information chosen in the description, such as top, bottom, side, etc., refers to the directly described and illustrated figure, and these positional information must be applied analogously to the new position in the event of a change in position.

[0031] In Fig. Figure 1 shows a section of a wall 1 of a building. The wall 1 has a wall opening, in particular a wall or wall penetration, which is closed with a structural element 2.

[0032] Component 2 can also be installed in a so-called element facade.

[0033] Structural element 2 is, in particular, a window or a door. However, it can also be another element, for example, an element of a prefabricated facade.

[0034] The component 2 has a first component part 3 and a second component part 4.

[0035] The second component part 4 is, in particular, a frame, which is preferably composed of several frame profiles 5. The frame profiles 5 can be made at least partially of metal, plastic, or wood. For example, the frame profiles 5 are multi-chamber profiles or hollow-chamber profiles, as are known for windows or doors.

[0036] The first component part 3 is preferably a wing, preferably a door or a window. The wing can have a sash frame, which is preferably composed of several frame profiles 6. The frame profiles 6 can be made at least partially of metal, plastic, or wood. For example, the frame profiles 6 are multi-chamber profiles or hollow-chamber profiles, as are known for windows or doors.

[0037] In addition to the sash frame, the sash can also have a filling element 7. The filling element 7 can be a glass element, for example, a laminated glass element or a multi-pane insulating glass element. However, the filling element 7 can also be made of a different material, particularly if the structural element 2 is designed as a door. For example, the filling element 7 can be made of at least one plastic or a metallic material.

[0038] The filling element 7 is held by or connected to the frame profiles 6. For example, the filling element 7 can be accommodated in a groove of the frame profiles 6. It is also possible for the filling element 7 to be arranged on an outer surface of the frame profiles 6.

[0039] The filling element 7 covers at least the space between the frame profiles 6 defined by the frame profiles 6.

[0040] The second component part 4 is connected to the first component part 3 via one or more fittings 8. The at least one fitting 8 is a so-called concealed fitting 8, i.e. it is arranged, for example, partially in at least one recess in at least one frame profile 5, 6. Since these so-called concealed fittings 8 are known per se, reference is made to the relevant prior art for further details regarding the placement of these fittings 8 in / on components 2. It should only be mentioned that with such fittings 8, as little as possible should be visible when the component 2 is in the closed position, for example when the window or door is closed.

[0041] In the following, only one fitting 8 is described in more detail. However, several fittings 8 of the component 2 can also be designed according to the invention. In this case, the following explanations can also be applied to these additional fittings 8.

[0042] The fitting 8 described below is a rotary fitting, in particular a corner bearing, of the component 2 and is accordingly arranged in the corners of the first component part 4, as can be seen from Fig. 1 can be seen.

[0043] However, the fitting 8 can also be designed differently, for example as a turn / tilt fitting and / or can be arranged at a different location on the component 2.

[0044] A variant of fitting 8 is shown in the Fig. 2 to 5 are shown in more detail.

[0045] The fitting 8 enables a relative adjustment of the first component part 3 with respect to a second component part 4, for example the opening and closing of the window or door.

[0046] The fitting 8 comprises, or consists of, a first fitting part 9 and a second fitting part 10. The first fitting part 9 is connected to the first component part 3. For example, the first fitting part 9 can have a profile element 11 which, for the design of the fitting 8 as a corner bearing, has the shape of an angle element with a right angle and which is arranged overlapping the lower or upper corner of the first component part 3 on the outside in the rebate, in particular directly adjacent to the first component part 3. In the embodiment shown in the figures, the profile element 11 is arranged adjacent to two frame profiles 6.

[0047] However, the profile element 11 can also have a different shape, which can depend in particular on the type or shape of the component 2 and / or on the use of the fitting 8.

[0048] The profile element 11 is connected to the first component part 3, in particular screwed.

[0049] The second fitting part 10 is connected, in particular screwed, to the second component part 4. The second fitting part 10 is preferably arranged in a recess in the second component part 4, for example, in a rebate of the second component part 4, as is known per se for the design of the component 2 as a window or door.

[0050] The second fitting part 10 can, for example, be plate-shaped or strip-shaped. Furthermore, the second fitting part 10 can be designed with openings for screwing to the second component part 4. Such openings can also be formed in the profile element 11 for screwing to the first component part 3.

[0051] The fitting 8, in particular the first fitting part 9, further comprises two support arms 12, 13 and a control arm 14. The support arm 12 is longer than the support arm 13. More than two support arms 12, 13 and / or more than one control arm 14 can also be provided, although this is not the preferred embodiment.

[0052] The two support arms 12, 13 are connected, on the one hand, to the control arm 14 in a rotatable and in particular non-detachable manner, e.g., via headed bolts 15, and, on the other hand, to the profile element 11 in a rotatable and in particular non-detachable manner, e.g., via headed bolts 15. Preferably, according to one embodiment, four axes of rotation are provided, wherein - as shown - the two support arms 12, 13 each have a fixed axis of rotation on the control arm 14 in a first end section 16 or 17 and a fixed axis of rotation on the profile element 11 of the first fitting part 9 in a second end section 18 or 19. The term "stationary" means that the respective axis of rotation does not change its position on the control arm 14 or the profile element 11. However, the position in space can change due to the relative adjustment of the components of the fitting 8 or the component 2. In particular, the rotation axes do not perform any translational movement in the control arm 14 or in the profile element 11.

[0053] Fewer than four axes of rotation can also be present, for example, three, if the two support arms 12, 13 do not each have their own axis of rotation with the profile element 11, but rather share one. However, the design with four axes of rotation is the preferred one.

[0054] For the sake of completeness, it should be noted that the support arms 12, 13 carry the load of the first component part 3, and the control arm 14 defines the movement sequence of the two fitting parts 9, 10 during the relative adjustment of the two fitting parts 9, 10 to each other as a result of the relative adjustment of the two component parts 3, 4. Since the second fitting part 10 is arranged on the second component part 4, which is normally arranged in a fixed position, the second fitting part 10 generally does not move.

[0055] It is provided that the control arm 14 of the first fitting part 9 has a catch groove 20. The catch groove 20 is designed, in particular, as an opening through the control arm 14. The control arm 14 can preferably be plate-shaped or strip-shaped.

[0056] Preferably, the catch groove 20 has a round, particularly semicircular, groove base. Furthermore, the distance between the groove walls can be constant or decrease toward the groove base. The latter design allows for easier insertion of a catch rivet 21 arranged in the second fitting part 10.

[0057] The catch groove 20 preferably begins at a first end face of the control arm 14 and extends toward the second end face opposite this first end face. The catch groove 20 is open at the first end face.

[0058] The catch rivet 21 has a rivet head 24 that has a larger diameter than a rivet shank 25. The rivet head 24 is spaced from a surface 26 of the second fitting part 10, with this distance being selected such that the control arm 14 can be arranged between this surface 26 of the second fitting part 10 and the rivet head 24. Preferably, the distance is only slightly larger, for example, by 0.1% to 2%, than the thickness of the control arm 14 in the region of the catch groove 20.

[0059] The diameter of the rivet head, in turn, is dimensioned so that it covers the catch groove 20. The diameter is therefore larger than the distance between the groove side walls, at least in the area of ​​the groove base.

[0060] It is further provided that the first fitting part 3 is connected to the second fitting part 4 in the connected state by a self-locking (also referred to as self-arresting) connecting element 27 (hereinafter referred to simply as connecting element 27). Due to the self-locking feature, the connecting element can also be referred to as a locking element.

[0061] In principle, the connecting element 27 can have any suitable shape, for example, be hook-shaped, wherein this hook can be arranged overlapping the control arm 14 in the connected state. For this purpose, the hook can, for example, extend through a preferably circumferentially closed opening 28 in the control arm 14. In this embodiment, the connecting element 27 is arranged on the second fitting part 10. This arrangement is also the preferred one. In principle, however, the reverse arrangement can also be used, in which the connecting element 27 is arranged on the control arm 14 or generally on the first fitting part 9.

[0062] The connection between the two fitting parts 9, 10 of the fitting 8 via the connecting element 27 can be designed to be non-detachable. In the preferred embodiment, however, this connection is designed to be detachable (non-destructively detachable), so that the first component part 3 can also be removed from the second component part 4 if necessary, e.g., for replacing the glass following a glass breakage.

[0063] In the preferred embodiment shown in the figures, the self-locking connecting element is arranged on the second fitting part 10 and engages in a recess, in particular the opening 28, in the control arm 14 in the connected state of the fitting 8, ie when the two fitting parts 8, 10 are connected to one another.

[0064] According to a further embodiment, it can be provided that the connecting element 27 rests with a bottom side 29 against a spring element 30. In order to show this more clearly in the figures, the connecting element 27 and the spring element 30 are Fig. 3 and Fig. 5 is shown both in the installed state and on its own. This does not necessarily mean that the fitting 8 has two such connecting elements 27 and two spring elements 30.

[0065] The spring element 30 is depicted as a leaf spring. It can also be a coil spring or another spring element.

[0066] The spring element 30 presses the connecting element 27 into the opening 28 of the control arm 14.

[0067] In the leaf spring embodiment, it may be advantageous if the spring element 30 is not flat but bent, forming two sections. This allows one section of the spring element 28 to be connected to the second fitting part 10, and the second section can be arranged to project into an opening 31 in the second fitting part 10, in which the connecting element 27 is arranged.

[0068] In general, the connecting element 27 can be arranged in an opening in the second fitting part 10, regardless of its shape.

[0069] Furthermore, the spring element 30 can generally be connected to the second fitting part 10 or can be loosely arranged in the recess of the second component part 4 in which the second fitting part 10 is arranged. However, the embodiment connected to the second fitting part 10 is preferred.

[0070] The spring element 10 thus presses the connecting element 27 into the opening 28 of the second fitting part 10. The angled design of the spring element 30 has the advantage that the spring element 30 can deflect when the first fitting part 9 is hooked into the second fitting part 10 and the resulting pushing away of the connecting element 27 (downward), without increasing the projection beyond the second fitting part 10. The latter is possible, however, if space is created for this in the second component part 4, for example by making the recess for the second fitting part 10 deeper in the area of ​​the spring element 30. The angled design of the spring element 30 is preferred, however, when it is designed as a leaf spring, since this results in lower manufacturing costs for the component 2.

[0071] The design of the spring element 30 as a leaf spring has a further advantage. According to one embodiment, it can be provided that the connecting element 27 has at least one groove 32 on the underside 29 for the engagement of the spring element 30 and at least one raised area relative to the groove 32. In the embodiment shown, the connecting element 27 has two grooves 32 on the underside 29, which are separated from one another by a web 33 forming the raised area. The grooves 32 are designed to be sufficiently wide so that the spring element 30 can be received therein with its loose end section. The spring element 30 thus lies firmly in this groove 32, thus achieving greater security against the unintentional release of the engagement of the connecting element 27 in the opening 28 of the control arm 14.

[0072] The raised area, for example, the web 33, can be used to force the spring element 30 out of engagement with the groove 32 when the connecting element 27 is moved. This movement can be translational. In the preferred embodiment, however, this movement is a rotational movement, so that the connecting element 27 is rotatably arranged on the second fitting part 10 in this embodiment. For this purpose, the connecting element 27 can be at least approximately cylindrical.

[0073] The second groove 32 has the advantage that the connecting element 27 can optionally be rotated further in the same direction or rotated back again in order to restore the engagement of the spring element 30 in the / one of the grooves 32.

[0074] The grooves 32, in particular their arrangement, for example offset by 180° to one another, can also be arranged or designed in such a way that a bearing-correct position can be achieved. With appropriate design, in particular if they are arranged 180° opposite one another, the connecting element 27 can be fixed in position in the open position if one groove 32 is used for the closed position and one groove 32 for the open position. The two grooves 32 can also - as described - both be used for the closed position. In this case, the spring element 30 rests on the raised area, in particular the web 33, in the open position.

[0075] To prevent the connecting element 27 from falling out of the opening 31, it can have a stop, for example in the form of a cross-sectional taper in the direction of the control arm 14, which interacts with a stop in the opening 31, e.g. an annular web. The arrangement of this fall-out prevention device must of course be dimensioned such that the effect of establishing the connection with the connecting element 27, i.e. in particular the locking engagement of the connecting element in the opening 31 of the control arm 14, is enabled. In the illustrated embodiment, this can be achieved, for example, by a locking section of the connecting element 27 that is adapted to the shape of the opening 31. For example, the opening 31 can be rectangular and the locking section can also have a quadrangular outline.By adapting the locking section of the connecting element 27 to the shape of the opening 31 in the control arm 14, a better contact of the connecting element 27 with the side walls of the opening 31 can be achieved, whereby the connection can be made more stable.

[0076] For the sake of completeness, it should be mentioned that the locking portion of the connecting element 27 in the sense of the invention is generally at least that portion of the connecting element 27 which projects into the opening 31 of the control arm 14 or which, in another embodiment, encompasses the control arm 14.

[0077] For adjusting the connecting element 27 from the closed position (in the illustrated embodiment with the engagement of the spring element 30 in the groove 32) to the open position (in which, in the illustrated embodiment, the spring element rests against the web 32), according to one embodiment, the connecting element 27 can be provided with a receptacle 34 for the engagement of a tool. This receptacle 34 can be slot-shaped for a slotted screwdriver, as shown, or cross-shaped for a Phillips screwdriver. Other shapes, such as an Allen-shaped receptacle 34 for receiving a hexagon wrench, etc., are also applicable.

[0078] According to a further embodiment, the control arm 14 can be provided with at least one further opening 35 for receiving a securing element. The at least one opening 35 (in the illustrated embodiment, two openings 35 are present) can be used to receive a screw which, when the fitting 8 is assembled, preferably also penetrates the second fitting part 10 and penetrates into the second component part 4. The opening 35 can be circular or, preferably, as an elongated hole. Furthermore, the opening 35 is preferably chamfered in order to be able to arrange a screw head in a countersunk manner. The at least one opening in the second fitting part 10 corresponding to the further opening 35 in the control arm 14 is preferably circular in order to achieve better fastening of the screw or, in general, the securing element.

[0079] The control arm 14 or the fitting 8 can have a further securing element. For this purpose, the control arm 14 can have a further retaining groove 36, which is similar to the retaining groove 20, but preferably extends at an angle of at least approximately 90° to this retaining groove 20, which therefore begins at a further end face 37 of the control arm 14 and extends towards the end face 38 of the control arm 14 opposite this further end face 37. With this further retaining groove 36, into which a further retaining rivet 39 of the second fitting part 10 engages, the retaining rivet 20 can be prevented from slipping out of the retaining groove 21 when the fitting 8 is in the assembled state. The further retaining groove 36 and the further retaining rivet 39 can be designed like the retaining rivet 20 and the retaining groove 21, so that reference is made to the above explanations in this regard.

[0080] In order to limit the opening angle of the fitting 8, according to one embodiment, the control arm 14 can be provided with a stop 40 for one of the support arms 12, 13. In the embodiment shown, this is the shorter support arm 13, which can also have a bulge that can be brought into contact with the stop 40, as can be seen in particular from Fig. 2 is evident.

[0081] To further increase the security of the fitting 8 against unintentional release, according to one embodiment, it can be provided that the second fitting part 10 has an angular securing element 41 which, in the connected position of the fitting 8, encompasses the control arm 14, as can be seen in particular from Fig. 2. According to a further embodiment, it can be provided that an inner surface of the securing element 41 facing the control arm 14 is formed with a slope 42, as can be seen from Fig. 3 is evident.

[0082] As explained above, the fitting 8 shown is a rotary fitting. For this purpose, the profile element 11 of the first fitting part 9 can have a sleeve-shaped receptacle 43 for receiving a rotary axis 44. The rotary axis 44 can be arranged on and connected to an intermediate piece 45 that is arranged between the profile element 11 and the control arm 14. In the preferred embodiment, the support arms 12, 13 and the control arm 14 are rotatably connected to this intermediate piece 45. In this regard, reference is made to the above explanations. The profile element 11 can therefore also be connected to the support arms 12, 13 and the control arm 14 via this intermediate piece 45, so that the profile element 11 may not necessarily form part of the fitting 8 itself, but rather the intermediate piece 45 forms the profile element 11, which, as also already explained above, does not necessarily have to be an angle profile.

[0083] If the fitting 8 is designed as a turn / tilt fitting, the axis of rotation 44 can be hemispherical in the end area or overall.

[0084] In Fig. 6 shows a sequence of positions of the fitting parts 9, 10 or the component parts 3, 4 relative to one another during closing. The open position is shown on the far left and the closed position is shown on the far right. As can be seen from the sequence, the profile element 11 of the first fitting part 9 performs a combination of a translational movement and a rotational movement during the movement of the fitting 8 from the open position to the closed position. According to one embodiment, in order to form a positive locking mechanism, it can be provided that, within an angular range of at least 5°, preferably a maximum of 20°, for example between 5° and 15°, a movement is carried out before the closed position is reached, during which the pivot point shifts by a maximum of 0.9 mm in the direction of the second fitting part 10.The translational displacement of the pivot point (in the direction of contact pressure when closing the leaf of a door or window) can also be implemented with a decreasing displacement. For example, during the last 5° of locking, the displacement of the pivot point can be only approximately 0.8 mm, and in the range between the last 10° and the last 5° of locking, the displacement of the pivot point can be between 0.8 mm and a maximum of 2 mm.

[0085] This can be achieved by the appropriate arrangement or position of the pivot points of the support arms 12, 13 on the profile element 11 or on the intermediate piece 45 which carry out the rotary or lateral movement (e.g. of the sash of a window or door) and / or by an appropriate shape of the support arms 12, 13, for example over the length of the support arms 12, 13. The length of the support arms 12, 13 can also be used to influence the forces in the system or their bending moments in the support arms 12, 13 and thus their load. In addition, the end position angular positions can be used to influence the closing movement, as this can prevent, for example, the sash from locking due to the support arms 12, 13 becoming blocked from one another, or the forces in the support arms 12, 13 increasing too high in the end position when the end position is reached.

[0086] It is therefore possible to achieve an almost positionally stable rotational movement during closing in the last 10° via the pivot point position and the support arm lengths and to enable reliable opening and force distribution.

[0087] To create the connection between the fitting parts 9, 10 and thus also to arrange the first component part 3 of the component 2 on the second component part 4 of the component 2, in a first step the catch rivet 21 of the second fitting part 10 is inserted into the catch groove 20 of the control arm 14 of the first fitting part 9. For example, a window sash arranged on the rotation axis 45 can be brought close enough to the frame that the catch rivet 21 engages in the catch groove 20. The control arm 14 is then moved over the second fitting part 10, so that the self-locking connecting element 27 subsequently moves into the locking position, in particular into engagement with the recess for the connecting element 27 in the control arm 14. For example, the window sash can be pivoted against the frame.As a result, in the preferred embodiment, the additional catch rivet 39 engages with the additional catch groove 36, the angular securing element 41 engages the control arm 14, and the connecting element 27 is pushed away against the spring force of the spring element 30 until the locking section is aligned with the opening 28 in the control arm 14 and is pressed into the opening 28 due to the spring preload. The latter is preferably audibly audible as a "click," so that the connection can also be referred to as a click connection or clip connection.

[0088] For the reasons stated above, according to a variant of the method, the catch rivet 21 is inserted into the catch groove 20 at an opening angle of the fitting 8 between 45 ° and 85 °.

[0089] After the connection of the first fitting part 9 with the second fitting part 10 has been established, one screw (per) opening 35 of the control arm 14 can be screwed in.

[0090] To release the connection between the fittings 8, 10, for example, to remove a window sash or door sash, the last-mentioned screw(s) are removed in a first step. The connecting element 27 is then rotated 90° from the closed position to the open position. This moves the connecting element 27 from the locking position with the opening 35, since the spring force of the spring element no longer presses the locking section into the opening 35. In this position, the sash can be pivoted out and removed from the pivot axis 44.

[0091] In Fig. Figure 7 shows a section of a variant of the fitting 8. Parts of the connecting element 27, the spring element 30 and the second fitting part 10 are visible. The spring element 30 of this variant is designed as a spiral spring, against which the connecting element 27 rests with the underside 29. At the other end, the spiral spring can be supported on the second fitting part 10 or on the second component part 4. The connecting element 27 is again designed with a circular cross-section so that it can be rotated in the opening 31 in the second fitting part 10. To prevent it from slipping out towards the control arm 14 (see e.g. Fig. 3) an annular web 46 is provided on the outer circumference of the connecting element 27, which can be brought into contact with an annular web 47 in the opening 31.

[0092] The annular web 46 of the connecting element 27 has one or more, for example two, groove-shaped recesses 48 extending continuously in the axial direction, which are open on the outer circumference of the annular web 46. These recesses 48 serve to receive projections 49 on an inner surface of the opening 31.

[0093] Furthermore, the annular web 46 of the connecting element has one or more, for example two, projections 50 extending in the axial direction. These projections 50 are arranged on the surface of the annular web 46 facing away from the underside 29 of the connecting element 27 and, in the assembled state, extend into correspondingly shaped groove-shaped recesses 51 in the annular web 47 of the opening 31. These groove-shaped recesses 51 can also have an expanded initial section, as can be seen from Fig. 7, in order to simplify the sliding in and out of the at least one projection 50 into the at least one recess 51.

[0094] The projection 49 or the projections 49 have a distance 52 in the axial direction from the annular web 47 in the opening 31, which distance is at least as large as a height 53 of the projections 50 of the annular web 46 of the connecting element 27. This makes it possible to move the connecting element 27 from the closed position, which is Fig.7 is reached and in which the projections 50 engage in the recesses 51, to rotate the connecting element 27 into the open position by pressing and rotating the connecting element 27 downwards. The annular web 46 of the connecting element 27 thereby moves under the projections 49, which simultaneously enables the connecting element 27 to be secured in the open position (in cooperation with the spring element 30, which presses the connecting element 27 against the projections 49). If the connecting element 27 is rotated further, the projections 47 again engage with the recesses 48 and the connecting element 27 returns to the locking position in which the projection 50 or the projections 50 are again received in the recess 51 or the recesses 51.

[0095] The embodiments show or describe possible design variants of the fitting 8 or the component 2, whereby it should be noted at this point that combinations of the individual design variants are also possible.

[0096] For the sake of clarity, it should finally be pointed out that, in order to better understand the structure of the fitting 8 or the component 2, these are not necessarily shown to scale. Reference symbol list 1 wall 2 Component 3 Component part 4 Component part 5 Frame profile 6 frame profile 7 Filling element 8 Fitting 9 Fitting part 10 fitting part 11 profile element 12 support arm 13 Support arm 14 Control arm 15 head bolts 16 final section 17 final section 18 final section 19 Final section 20 Catch groove 21 catch rivet 22 Frontal surface 23 Frontal surface 24 rivet head 25 rivet shank 26 Surface 27 Connecting element 28 Breakthrough 29 Bottom 30 spring element 31 Breakthrough 32 grooves 33 jetty 34 recording 35 Breakthrough 36 Catch groove 37 frontal area 38 frontal area 39 catch rivet 40 stops 41 Securing element 42 slopes 43 recording 44 axis of rotation 45 intermediate piece 46 Ringsteg 47 Ringsteg 48 recess 49 lead 50 lead 51 recess 52 distance 53 height QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] DE 20 2007 000 693 U1

[0006] DE 20 2010 003 145 U1

[0007] DE 20 2010 003 147 U1

[0008]

Claims

[1] Fitting (8) which can be concealed in a fold of a building element (2) for the relative adjustment of a first building element part (3) with respect to a second building element part (4), comprising a first fitting part (9) and a second fitting part (10), wherein the first fitting part (9) is connected to the first building element part (3) and the second fitting part (10) is connected to the second building element part (4), wherein the first fitting part (9) has a profile element (11) which is rotatably connected to two support arms (12, 13) and a control arm (14) of the fitting (8), characterized bythat the control arm (14) of the first fitting part (9) has a catch groove (20), that the second fitting part (10) further has a catch rivet (21) which can be inserted into the catch groove (20) when the fitting (8) is unconnected and is received in the catch groove (20) when the fitting (8) is connected, and that the first fitting part (9) is connected to the second fitting part (10) in the connected state by means of a self-locking connecting element (27). [2] Fitting (8) according to claim 1, characterized by that the self-locking connecting element (27) is arranged on the second fitting part (10) and engages in a recess in the control arm (14) in the connected state of the fitting (8). [3] Fitting (8) according to claim 1 or 2, characterized by that the self-locking connecting element (27) rests with a bottom side (29) on a spring element (30). [4] Fitting (8) according to claim 3, characterized bythat the self-locking connecting element (27) has on the underside (29) at least one groove (32) for the engagement of the spring element (30) and at least one region raised relative to the groove (32). [5] Fitting (8) according to one of claims 1 to 4, characterized by that the self-locking connecting element (27) is rotatably arranged on the second fitting part (10). [6] Fitting (8) according to one of claims 1 to 5, characterized by that the self-locking connecting element (27) has a receptacle (34) for the engagement of a tool. [7] Fitting (8) according to one of claims 1 to 6, characterized by that the control arm (14) has at least one opening (35) for receiving a securing element. [8] Fitting (8) according to one of claims 1 to 7, characterized by that the control arm (14) has a stop (40) for one of the support arms (12, 13). [9] Fitting (8) according to one of claims 1 to 8, characterized by that the second fitting part (10) has an angular securing element (41) which engages around the control arm (14) in the closed position of the fitting (8). [10] Fitting (8) according to claim 9, characterized by that an inner surface of the securing element (41) facing the control arm (14) is formed with a slope (42). [11] Fitting (8) according to one of claims 1 to 10, characterized by that the two support arms (12, 13) each have a fixed axis of rotation on the control arm (14) in a first end section (16, 17) and a fixed axis of rotation on the profile element (11) of the first fitting part (9) in a second end section (18, 19). [12] Fitting (8) according to claim 11, characterized bythat the profile element (11) of the first fitting part (9) executes a combination of a translational and a rotary movement during the movement from the open position of the fitting (8) into the closed position, wherein in an angular range of at least 5 ° before reaching the closed position a rotary movement is executed, in which the pivot point is displaced by a maximum of 0.9 mm in the direction of the second fitting part (10). [13] Component (2) with at least one fitting (8), characterized by that the fitting (8) is designed according to one of claims 1 to 12. [14] Component (2) according to claim 13, characterized by that the fitting (8) forms a corner bearing of the structural element (2). [15] Method for arranging a first component part (3) of a component (2) on a second component part (4) of the component (2), characterized bythat the component (2) has a fitting (8) according to one of claims 1 to 12 or is designed according to one of claims 13 or 14, and that in a first step the catch rivet (21) of the second fitting part (10) is introduced into the catch groove (20) of the control arm (14) of the first fitting part (9) and that the control arm (14) is then moved over the second fitting part (10) so that subsequently the self-locking connecting element (27) comes into the locking position, in particular comes into engagement with the recess for the connecting element (27) in the control arm (14). [16] Method according to claim 15, characterized by that the catch rivet (21) is inserted into the catch groove (20) when the fitting (8) has an opening angle of between 45 ° and 85 °.

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