HARDWARE ARRANGEMENT
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- MACO TECHNOLOGIE GMBH
- Filing Date
- 2020-12-14
- Publication Date
- 2026-04-30
AI Technical Summary
Existing fitting arrangements for tilt-and-turn sashes are difficult to install, require tools, and risk detachment due to loose connections, especially with bayonet fittings.
A bayonet fitting system with a rigidly attached bayonet bolt on the bearing band or carrying handle, requiring a specific rotational alignment to ensure secure coupling, eliminating the need for tools and preventing accidental disengagement.
Facilitates easy, tool-free installation and reliable coupling of the pivot arm to the bearing band, ensuring the fitting arrangement remains securely attached even under operational stress.
Description
[0001] The invention relates to a fitting arrangement for the sash of a window, a door or the like, in particular for a sash that is tilt-and-turn capable.
[0002] Such a hardware arrangement can movably mount the sash to a window or door frame. For this purpose, the hardware arrangement is attached to the sash, and corresponding counterparts are attached to the frame on the hinge side of the window or door. The hardware arrangement can then be movably, and in particular pivotally, mounted to these counterparts by means of a hinge. The hardware arrangement can, for example, comprise an elongated pivot arm that is attached to the sash and connected at its hinge-side end via the hinge to a pivot bearing provided on the frame. This connection can be made, for example, by hooking the hinge onto the pivot bearing, so that the pivot arm, and with it the sash, is held by the pivot bearing but can simultaneously be moved, in particular pivoted about an axis of rotation defined by the pivot bearing.A so-called belt angle is particularly suitable as a bearing band, which can be angled once or several times in order to achieve a certain offset between the swivel arm and the swivel bearings.
[0003] Depending on the shape, weight, and desired function of the sash, and especially on the type of opening mechanism, very different hardware arrangements can be used. Typically, for a sash that is intended to open both in a pivot and a tilt, a so-called scissor arm is used as the pivot arm. This allows the side of the sash where it is located to be opened parallel to a position aligned solely radially with the respective bearing, thus tilting the sash in the opposite direction. However, this pivot arm can also be designed as a pure pivot arm or a pure tilt arm (or pivot or tilt hinge plate), or it can enable other kinematic movements of the sash relative to the frame.
[0004] The same degree of variability required for pivot arms is not necessary for pivot bearings, particularly for so-called scissor bearings, which are typically located at the top of the respective hinge side of the wing. This is because they generally only need to allow the pivoting of the respective pivot arm and are therefore essentially independent of the wing's shape and opening mechanism. The bearing strip on which a pivot arm is mounted to a pivot bearing can thus be identical for different pivot arms. For this reason, it is advantageous to manufacture the bearing strips not as an integral part of the pivot arms, but as separate components, each of which is then rigidly connected to a pivot arm. In this way, different pivot arms can be produced, all of which utilize the same bearing strip.
[0005] A further advantage of a two-part design is that each pivot arm is not predetermined to have a specific hinge side on the sash, i.e., which side the sash can pivot around. In particular, a single pivot arm can, in principle, be used on both left- and right-opening sashes. Only by coupling it to a bearing hinge is the pivot arm then fixed to a specific hinge side. This fixation can be achieved through the choice of bearing hinge and / or the way the bearing hinge is arranged on the pivot arm. In the latter case, the hardware arrangement can be reconfigured by changing the orientation of the bearing hinge on the pivot arm. This allows for particularly flexible use of the hardware arrangement.
[0006] However, if the pivot arm and the bearing strap are manufactured separately, it is crucial that these parts are reliably coupled to each other no later than when the hardware assembly is mounted on the respective sash. This is because, particularly when the sash is in the open position, a significant portion of its support from the frame is provided by this coupling.
[0007] The pivot arm typically extends radially to the axis of rotation and is therefore attached to the wing on one of its sides perpendicular to the hinge side. The bearing strap, on the other hand, is usually located on the hinge side of the wing for interaction with the pivot bearing. Therefore, it is advantageous for the pivot arm to have a support bracket at its hinge-side end, which includes a leg angled relative to the rest of the pivot arm and used for coupling with the bearing strap.
[0008] For example, the bearing strap can simply be screwed or riveted to the angled leg of the support bracket. However, this type of connection requires the use of tools and therefore adds extra effort to the installation of the fitting assembly. Furthermore, a riveted connection is irreversible, meaning the fitting assembly cannot be reconfigured if the wrong swivel arm was selected or the wrong side of the strap was set.
[0009] A simple yet reliable and releasable connection can be achieved using a bayonet fitting. This can be accomplished by providing a bayonet receptacle on the swivel arm's carrying handle and a rotating bayonet pin on a coupling section of the bearing strap. The carrying handle and bearing strap can then be inserted into each other and secured by rotating the bayonet pin in the bayonet receptacle.
[0010] A disadvantage of this type of connection, however, is that tools may be required to turn the bayonet bolt, which is typically difficult to grip. Furthermore, there is a risk that the rotating bayonet bolt may loosen over time, for example, due to the operation of the sash or vibrations, causing the connection to detach. Finally, there is also the risk that, during the installation of the fitting assembly, the turning of the bayonet bolt inserted into the bayonet receptacle to lock the bayonet fitting will simply be forgotten, since the pivot arm and the bearing strap appear to be connected merely by being inserted, even though they are not yet positively locked together.
[0011] DE3024746A1 discloses an example of a fitting arrangement.
[0012] It is an object of the invention to provide a fitting arrangement of the type mentioned above that is flexible in its application, particularly easy and safe to mount, and at the same time ensures a reliable coupling of the bearing band to the swivel arm.
[0013] The problem is solved by a fitting arrangement with the features of claim 1. Advantageous embodiments of the invention are described in the dependent claims, the present description and the figures.
[0014] The fitting arrangement according to the invention for the sash of a window, door, or the like comprises a pivot arm designed to be attached to the sash and which has a support bracket at a hinge-side end of its longitudinal extension, with a leg angled transversely to the longitudinal extension. The sash can, in particular, be a tilt-and-turn sash. The pivot arm can, in particular, be designed as a scissor arm for this purpose. The pivot arm has, in particular, an elongated shape extending between the aforementioned hinge-side end and an opposite, far-hinged end. The two ends define a longitudinal axis of the pivot arm, along which the aforementioned longitudinal extension is defined.
[0015] The support bracket, with its leg angled relative to the rest of the swivel arm's longitudinal extension, can, in principle, be designed as a single structural unit with the swivel arm. For example, the support bracket can correspond to a section of the swivel arm and be formed essentially by bending the swivel arm at its end facing the belt, so that the bent portion forms the aforementioned leg. Preferably, however, the support bracket is a component manufactured separately from the swivel arm and firmly connected to it, e.g., by riveting. The support bracket can essentially be designed as an angle with two legs, one of which forms the aforementioned angled leg. The other leg of the support bracket then serves to attach the support bracket to the swivel arm and is expediently aligned parallel to the swivel arm's longitudinal extension.
[0016] The swivel arm is preferably designed to be attached in the rebate on one side of the sash, particularly on its upper side. The support bracket can then be positioned at a corner of the sash and encompass it, in particular such that the aforementioned angled leg is at least substantially vertically oriented.
[0017] The fitting arrangement further comprises a bearing band which is designed to be pivotably mounted about an axis of rotation of the pivot bearing with a bearing section on a pivot bearing to be provided on the frame of the window or door, and which has a coupling section which can be coupled to the angled leg of the support bracket of the pivot arm by means of a bayonet fitting.
[0018] The bearing section mentioned can, for example, be designed as a sleeve into which a bearing pin of the frame-side swivel bearing can engage, so that the bearing band is rotatable around the bearing pin. The coupling section of the bearing band mentioned can, for example, have at least a substantial plate shape. The bearing band can, in particular, be designed as a so-called band angle. The bearing band can be angled (even multiple times) such that the plane defined by the plate shape of the coupling section deviates from an orientation radial to the axis of rotation, for example, by an angle of at least 30° and / or at most 60°, in particular about 45°. The swivel bearing can, in particular, be a so-called scissor bearing.
[0019] The bayonet fitting comprises a bayonet bolt extending along a bolt axis and a bayonet receptacle, designed such that, to close the bayonet fitting, the bayonet bolt is inserted axially into the bayonet receptacle with respect to the bolt axis and then rotated relative to the bayonet receptacle about the bolt axis into a coupling position. In this position, the positive locking means of the bayonet bolt engage corresponding positive locking means of the bayonet receptacle, thereby preventing the bayonet bolt from axially disengaging from the bayonet receptacle (with respect to the bolt axis). It may be provided, in particular, that the insertion is a purely translational movement, i.e., it is not superimposed by any rotation. The subsequent rotation into the coupling position, however, may also include axial movement, for example, similar to a screw motion and / or to overcome a detent.
[0020] However, it can also be a pure rotation without any movement in the axial direction.
[0021] After the bayonet bolt is inserted into the bayonet receptacle, but before it is rotated relative to the receptacle, the bayonet bolt is in a release position. In this position, the locking elements of the bayonet bolt do not engage the corresponding locking elements of the bayonet receptacle, and the bayonet bolt can therefore be axially disengaged from the receptacle. By rotating the bayonet bolt back from the engaged position to the release position, the locking mechanism can be released, thus disengaging the bayonet fitting.
[0022] In other words, the bayonet bolt and the bayonet receptacle are designed in such a way that, to close the bayonet lock, the bayonet bolt is inserted axially into the bayonet receptacle with respect to the bolt axis and then rotated relative to the bayonet receptacle around the bolt axis from a release position to a coupling position, whereby in the coupling position, positive locking means of the bayonet bolt engage corresponding positive locking means of the bayonet receptacle and thereby lock the bayonet bolt against axial exit from the bayonet receptacle, whereas in the release position this does not occur;Therefore, the bayonet bolt and the bayonet receptacle can advantageously be designed such that, to open the bayonet lock, the bayonet bolt is rotated relative to the bayonet receptacle about the bolt axis from the coupling position to the release position and then axially removed from the bayonet receptacle with respect to the bolt axis.
[0023] Preferably, the bayonet bolt is arranged on the bearing band, with the bayonet receptacle then provided on the carrying handle. However, the reverse is also possible: the bayonet bolt is arranged on the carrying handle; in this case, the bayonet receptacle is then provided on the bearing band.
[0024] The positive locking means can be formed, in particular, by radial projections with respect to the bolt axis, for example bayonet wings, and / or radial recesses, for example undercuts, grooves, or cam guides. In particular, the bayonet bolt can have one or more such projections, preferably at least two bayonet wings, and the bayonet receptacle can have one or more such recesses, preferably at least two undercuts. However, the bayonet receptacle can also have one or more radial projections and / or the bayonet bolt can have one or more radial recesses.
[0025] According to the invention, the bayonet bolt is rigidly, and in particular rotationally fixed, arranged on the carrying handle or on the bearing band.
[0026] The bayonet bolt is rigidly attached to the respective element on which it is mounted (carrying bracket or bearing band) in that it is not rotatable relative to this element, and preferably not movable at all. This means that the bayonet bolt cannot be rotated separately for the described insertion-rotation movement to close the bayonet connection; instead, the entire element on which it is mounted must be rotated along with it. Specifically, to close the bayonet connection, the entire bearing band must be rotated around the bolt axis relative to the carrying bracket or the entire scissor arm. Since opening the bayonet lock requires precisely the reverse sequence of movements (first rotating, then axially extending the bayonet bolt from the bayonet receptacle), the same applies to opening the bayonet lock.
[0027] The bayonet bolt can, in principle, be formed as a single piece with the carrying handle or the bearing band. However, it is simpler to manufacture the bayonet bolt as a separate component, which is then connected to the carrying handle or the bearing band so firmly, and in particular rotationally fixed, that it is rigidly attached to it in the manner described.
[0028] The bayonet bolt can be fastened, for example, by riveting. Preferably, the bayonet bolt is crimped onto the carrying bracket or the bearing band. The fastening is such that the bayonet bolt is secured against rotation relative to the carrying bracket or the bearing band, at least by friction. Preferably, the bayonet bolt is alternatively or additionally secured against rotation relative to the carrying bracket or the bearing band by positive locking. For this purpose, for example, the cross-section of a base section of the bayonet bolt and the cross-section of a rivet hole in the carrying bracket or the bearing band, through which the base section extends, can have substantially corresponding contours, with the contours each deviating from a circular shape, so that the base section is positively locked against rotation about the bolt axis in the rivet hole.For an even more reliable rigid connection, the fastening can also be at least partially material-bonded.
[0029] The rotation required to open or close the bayonet fitting advantageously extends over an angle of at least 60°, preferably at least substantially 90°. The bayonet fitting is expediently oriented such that when the bayonet bolt assumes its coupling position in the bayonet receptacle, the pivot arm and the bearing band assume their normal functional position, i.e., are aligned relative to each other in such a way that they can be attached to a wing and fulfill their function of pivotally supporting the wing. This also means that the pivot arm and the bearing band can only be inserted into or removed from each other in a rotational position that differs from their functional position by the aforementioned angle of rotation. This has the advantage of reliably preventing the rotational movement required to fully close the bayonet connection from being forgotten.Because as long as the bayonet bolt is only inserted into the bayonet socket, but not also rotated into the coupling position after insertion, the pivot arm and the bearing band do not assume their normal functional position, but are twisted relative to each other. This is then clearly noticeable; in particular, the fitting assembly may not even be mountable on the sash in this state.
[0030] Another advantage of a rigid bayonet bolt is that no tool is required to rotate it. Instead of gripping the bayonet bolt itself, one can grasp the component to which the bayonet bolt is attached—the bearing band, the carrying handle, or the scissor arm as a whole. Since both the bearing band and the scissor arm are significantly larger than the bayonet bolt, they are easier to grip, usually without tools. Furthermore, this allows for a simpler generation of sufficient torque for the rotational movement required to open or close the bayonet fitting.
[0031] According to an advantageous embodiment, the bayonet bolt and the bayonet receptacle are designed such that, after the aforementioned axial insertion into the bayonet receptacle, the bayonet bolt can be selectively rotated either into the aforementioned coupling position or, in the opposite direction of rotation around the bolt axis, into a further coupling position. In this second position, corresponding positive locking elements of the bayonet bolt engage behind corresponding positive locking elements of the bayonet receptacle, thereby preventing the bayonet bolt from axially exiting the bayonet receptacle. Preferably, the bayonet bolt is rotated 180° in the second coupling position compared to the first. In this way, the bearing band can advantageously be coupled to the support bracket (and thus to the swivel arm) in two different orientations, which are preferably directly opposite to each other, using the same bayonet fitting.The two orientations can correspond in particular to two different mounting configurations of the fitting arrangement, where one configuration may be suitable for a left-opening sash and the other for a right-opening sash.
[0032] In this context, it can also be particularly advantageous if the bearing band is mirror-symmetrical to a mirror plane that is orthogonal to the aforementioned axis of rotation and / or contains the bolt axis. The relationship to the axis of rotation of the pivot bearing is determined by the way the bearing band is mounted to the pivot bearing and is, in particular, uniquely defined by the design of the bearing section of the bearing band. The mirror-symmetrical design of the bearing band allows the fitting arrangement to have two configurations, which differ in that the bearing band in one configuration is rotated by 180° relative to the orientation in the other, and the bearing band can be mounted to the pivot bearing in essentially the same way in both configurations despite the different orientation.
[0033] According to a further advantageous embodiment, anti-rotation devices are provided between the coupling section of the bearing band and the angled leg of the carrying handle. These devices automatically engage when the bayonet bolt is in the coupled position, i.e., when the bayonet fitting is closed, and then secure the bayonet bolt against leaving the coupled position. Such anti-rotation devices thus also secure the bayonet fitting as a whole against unintentional opening. If the aforementioned additional coupling position exists, anti-rotation devices can also be provided to secure the bayonet bolt against leaving this additional coupling position, or the same anti-rotation devices can simultaneously perform this function.
[0034] According to the invention, the carrying handle has a detent projection extending parallel to the bolt axis, and the bearing band has a corresponding detent recess; or vice versa, such that the bearing band has the detent projection and the carrying handle has the detent recess. In each case, the detent projection and the detent recess are arranged such that the detent projection engages in the detent recess when the bayonet bolt is in the coupled position, i.e., when the bayonet fitting is closed. Preferably, the detent projection engages axially with respect to the bolt axis in the detent recess. Furthermore, engagement preferably occurs at least substantially upon reaching the coupled position, for example, by pre-tensioning the detent projection into the engaging position, and by reaching the coupled position, the detent recess is positioned precisely to enable engagement.The engagement of the locking projection in the locking recess can, advantageously in a form-fitting manner, prevent the bayonet fitting from being rotated back from the coupled position, particularly into the release position. In this respect, the locking projection and the locking recess can constitute anti-rotation devices in the sense of the embodiment described above.
[0035] In principle, it is also conceivable that both the carrying handle and the bearing band each have at least one detent projection extending parallel to the bolt axis and at least one detent recess corresponding to a detent projection of the other component, wherein the detent projections and detent recesses are arranged such that, in the coupling position of the bayonet bolt, i.e., when the bayonet lock is closed, the at least one detent projection of the carrying handle engages in the at least one detent receptacle of the bearing band and the at least one detent projection of the bearing band engages in the at least one detent receptacle of the carrying handle.
[0036] In a non-inventive embodiment, it is conceivable that the locking projection is integrally formed in the carrying handle or the bearing band, depending on which of these two elements the locking projection is provided on. This integral formation of the locking projection can be produced, in particular, by deformation, preferably by embossing. In this way, no separate component needs to be provided for the locking projection. In particular, the locking projection can be formed together with the carrying handle or the bearing band during its manufacture.
[0037] According to the invention, the detent projection is part of an elastic spring assembly. The spring assembly is not an integral component of the support bracket or the bearing band, but is generally designed separately, although it is preferably rigidly connected to the support bracket or the bearing band. The detent projection can be designed as a structure attached to the spring assembly or formed by a section of the spring assembly itself. The spring assembly can, in particular, comprise a leaf spring on which the detent projection is formed, or be designed entirely as such a leaf spring. For example, the leaf spring can have a resiliently mounted tongue at the free end of which the detent projection is formed.The detent projection can be formed, for example, by a single or multiple bent end section of the tongue, which, as a result of the bending, protrudes at least partially parallel to the bolt axis from the rest of the leaf spring and / or the support bracket or the bearing band.
[0038] If the fitting assembly has several locking projections for securing the bayonet fitting, these can also be designed differently. For example, in addition to the locking projection designed as an elastic spring device, in particular as a leaf spring, another locking projection can be provided, which is integrally formed in the carrying handle or the bearing band in the manner described.
[0039] According to the invention, it is further provided that in the coupling position of the bayonet bolt the locking recess is at least partially aligned with a locking recess which is formed on the component on which the spring device is provided and into which the spring device engages in order to be secured against rotation relative to the component.In other words, according to the invention, either the bearing band has the detent recess and the carrying bracket has a locking recess into which a part of the spring device engages in order to be secured against rotation relative to the carrying bracket, or - conversely - the carrying bracket has the detent recess and the bearing band has a locking recess into which a part of the spring device engages in order to be secured against rotation relative to the bearing band; wherein (in both cases) the locking recess is at least partially aligned with the detent recess in the coupling position of the bayonet bolt.
[0040] The alignment here refers specifically to a direction parallel to the bolt axis. In other words, the locking recess is at least partially aligned with the detent recess if, when viewed in a direction parallel to the bolt axis, the locking recess and the detent recess overlap at least partially. In the axial direction, i.e., parallel to the bolt axis, the locking recess and the detent recess preferably have a small gap between them. In particular, when the bayonet bolt is engaged, the locking recess and the detent recess are at least substantially directly adjacent to each other or are separated from each other only by the spring mechanism.
[0041] Since, in the coupled position, the detent projection formed as part of the spring assembly engages in the detent recess of one of the two components (bearing strap and carrying handle), and a part of the spring assembly simultaneously engages in the locking recess on the other component, with this locking recess being aligned with the detent recess, a relatively direct mutual locking of the bearing strap and the carrying handle against rotation relative to each other is achieved. Due to the preferably small distance between the locking recess and the detent recess, even an attempt to rotate the bearing strap relative to the carrying handle from the coupled position does not result in particularly high torques on the spring assembly engaging both recesses. Thus, this embodiment ensures that the bayonet fitting is secured particularly reliably in its closed position.
[0042] Furthermore, it is advantageous if the spring assembly extends completely around a base section of the bayonet bolt, by which the bayonet bolt is attached to the bearing band or the carrying handle. For example, the spring assembly, which is preferably a leaf spring, can have a hole through which the base section of the bayonet bolt extends. With such a design, the spring assembly does not need to be attached to the bearing band or the carrying handle by separate fasteners, e.g., riveted, but can be indirectly secured by the attachment of the bayonet bolt to the bearing band or the carrying handle. In particular, the spring assembly can be clamped between the bayonet bolt and the bearing band or the carrying handle. Furthermore, the bayonet bolt can be riveted to the bearing band or the carrying handle via its base section.The spring device can then be riveted together with the bayonet bolt to the bearing band or the carrying handle.
[0043] According to a further advantageous embodiment, a chamfer is formed on the bearing band or the support bracket, arranged such that the locking projection, when the bayonet bolt is rotated into the coupling position, runs against the chamfer and is thereby axially retracted relative to the bolt axis. Such a chamfer can help prevent the locking projection, which projects parallel to the bolt axis, from striking an edge when the bearing band rotates relative to the support bracket in the direction of rotation, thus preventing further rotation into the coupling position. This is because the chamfer retracts the locking projection axially, i.e., parallel to the bolt axis, so that, with a suitable arrangement of the chamfer, even a step over an edge can be overcome.At the same time, the axial pushing back can exert a corresponding axial restoring force on the detent projection, which can be the cause of, or at least contribute to, the detent projection automatically engaging axially in the detent recess when the coupling position is reached, in particular locking into place.
[0044] According to another advantageous embodiment, the locking recess is designed to be open in a radial direction with respect to the bolt axis, wherein a starting contour is formed on the bearing band or on the carrying bracket, which is arranged such that the locking projection runs against the starting contour when the bayonet bolt is turned into the coupling position and is thereby pushed back radially with respect to the bolt axis.
[0045] Such a leading-edge contour can, in principle, function similarly to the chamfer described above, preventing the rotational movement from being blocked by the detent projection striking an edge. However, a key difference between the leading-edge contour and the chamfer is that the leading-edge contour does not axially, but radially, retract the detent projection approaching it with respect to the bolt axis. The detent projection is thus guided radially around a step, for example, by the course of an edge of the bearing band or the support bracket. This radial retraction can advantageously result in a restoring force acting radially on the detent projection.The radially perforated design of the detent recess allows the radially retracted detent projection, guided along the approach contour, to penetrate radially into the detent recess as a result of the aforementioned restoring force when the coupling position is reached, into which it then engages axially due to its projection parallel to the bolt axis.
[0046] Regardless of the embodiment described above and the path by which the locking projection enters the locking recess, it is further preferred that the locking recess be closed in any case in the circumferential direction around the bolt axis, particularly in the circumferential direction in which the bayonet bolt can be rotated from the engaged position to the release position, so that the locking projection, which projects parallel to the bolt axis and engages in the locking recess, cannot leave the locking recess in the circumferential direction, but must first be moved out of the locking recess, particularly manually, in an axial and / or radial direction. In this way, an accidental release of the bayonet lock can be virtually prevented.
[0047] The invention will be further explained below using the figures as examples only. Figures 1a-1c show an unclaimed first fitting arrangement according to the preamble of claim 1 in three different positions of the bearing band relative to the pivot arm. Figure 2 shows the bayonet bolt of the first fitting arrangement in two views from different perspectives. Figure 3 shows the carrying bracket of the first fitting arrangement in two views from different perspectives. Figures 4a-4c show an unclaimed second fitting arrangement according to the preamble of claim 1 in three different positions of the bearing band relative to the pivot arm. Figure 5 shows the carrying bracket of the second fitting arrangement in two views from different perspectives. Figures 6a-6c show a first embodiment of a fitting arrangement according to the invention in three different positions of the bearing band relative to the pivot arm. Figure 7 shows the bearing band of the first embodiment according to the invention.Figure 8 shows a spring device of the first embodiment according to the invention. Figures 9a-9c show a second embodiment of a fitting arrangement according to the invention in three different positions of the bearing band relative to the pivot arm. Figure 10 shows the bearing band of the second embodiment according to the invention. Figure 11 shows a spring device of the second embodiment according to the invention. Figures 12a-12c show a third embodiment of a fitting arrangement according to the invention in three different positions of the bearing band relative to the pivot arm. Figure 13 shows a section of the fitting arrangement according to the third embodiment according to the invention in a further position of the bearing band relative to the pivot arm from a view that is different from the others. Fig. 12a-12c changed viewing angle. Fig. 14 shows the carrying handle of the third embodiment according to the invention with a spring device, which is shown once arranged on the carrying handle and once separately.
[0048] The figures show various fitting arrangements 11 or parts thereof. Components of the different fitting arrangements 11 that correspond to one another are each marked with the same reference numeral.
[0049] The fitting assemblies 11 are each intended for use on the sash of a window, door, or the like (not shown) and each comprise a pivot arm 13, which is designed as a scissor arm and has a support bracket 15 at its hinge-side end. The support bracket 15 is designed as an angle with one leg 17 and a further leg 19, wherein the further leg 19 is aligned parallel to the longitudinal extent of the pivot arm 13 and rests against the pivot arm 13 and is rigidly connected to it, while the leg 17 is angled transversely to the longitudinal extent.
[0050] The fitting arrangements 11 each further comprise a bearing band 21, which is designed as a band angle. The bearing band 21 has a substantially sleeve-shaped bearing section 23 into which a bearing pin of a frame-side pivot bearing (not shown) can engage in order to pivot the bearing band 21 and, via the support bracket 15, ultimately the entire pivot arm 13 about an axis of rotation of the pivot bearing on the pivot bearing. The bearing band 21 further comprises a plate-shaped coupling section 25, which is angled relative to the bearing section 23 such that it is offset parallel to a radial orientation with respect to the axis of rotation.
[0051] The carrying handle 15 and the bearing strap 21 can be coupled to each other via the angled leg 17 and the coupling section 25. For this purpose, a bayonet fitting 27 is provided, comprising a bayonet bolt 29 formed on the coupling section 25 of the bearing strap 21 and a bayonet receptacle 31 formed in the leg 17 of the carrying handle 15. The bayonet bolt 29 extends along a bolt axis B, with respect to which it is rotationally symmetrical (see in particular [reference]). Fig. 2 ).
[0052] How in particular the Fig. 1 , 4 , 6 , 9 and 12 To illustrate, to close the bayonet fitting 27, the bayonet bolt 29 is inserted axially, i.e., parallel to the bolt axis B, into the bayonet receptacle 31 and then rotated relative to the bolt receptacle 31 around the bolt axis B into the Fig. 1c , 4c , 6c , 9c and 12cThe coupling position shown has been rotated.
[0053] In the coupled position, the positive locking elements 33 of the bayonet bolt 29 engage corresponding positive locking elements 35 of the bayonet receptacle 31, thereby positively securing the bayonet bolt 29 against axial disengagement from the bayonet receptacle 31. The positive locking elements 33 of the bayonet bolt 29 are designed as two bayonet wings, formed by two projections that extend radially outwards and are diametrically opposed to each other with respect to the bolt axis B. The corresponding positive locking elements 35 of the bayonet receptacle 31 are formed by two undercuts that are arranged diametrically opposite to each other in the same manner as the bayonet wings of the bayonet bolt 29, and are thus engaged by one of the bayonet wings when the bayonet bolt 29 is in its coupled position.
[0054] If, on the other hand, the bayonet bolt 29 is rotated by 90° relative to the coupling position in the Fig. 1a , 4a , 6a , 9a and 12a In the release position shown, the bayonet wings can be guided past the undercuts so that the bayonet bolt 29 can be inserted axially into the bayonet receptacle 31 or removed axially from the bayonet receptacle 31 to release the coupling.
[0055] In Fig. 2 The bayonet bolt 29 of the unclaimed first fitting arrangement 11 is shown separately in two illustrations from different angles. The bayonet bolts 29 of the in the Fig. 4 und 5 shown unclaimed second fitting arrangement 11, which is in the Fig. 6 bis 8 shown first embodiment of a fitting arrangement 11 according to the invention, which is in the Fig. 9 bis 11 the second embodiment of a fitting arrangement 11 according to the invention and the one shown in the Fig. 12 bis 14 The third embodiment of a fitting arrangement 11 according to the invention shown are each, in particular with regard to the design of the positive locking means 33, at least substantially identical to the one shown in Fig. 2 The bayonet bolt shown is 29.
[0056] The bayonet bolt 29 has a base section 45, the cross-section of which is circular with two diametrically opposed flattened surfaces. The bayonet bolt 29 can be inserted into a rivet hole 47 with this base section 45 (see figure). Fig. 7 and 10 , in which the bearing band 21 of the first or second embodiment according to the invention is shown without the bayonet bolt 29), which is formed in the coupling section 25 of the bearing band 21 and has a corresponding cross-section, is inserted and then riveted to the bearing band 21 for a fixed connection (see also Fig. 13 ). The rigid arrangement of the bayonet bolt 29 according to the invention results in particular from the described cross-sectional shape of the base section 45 and the rivet hole 47, due to which the bayonet bolt 29 is positively locked against rotation relative to the bearing band 21.
[0057] Since the bayonet bolt 29 is rigidly, and in particular rotationally fixed, arranged on the coupling section 25 of the bearing band 21, the entire bearing band 21 must be rotated relative to the carrying handle 15 in order to rotate the bayonet bolt 29 in the bayonet receptacle 31. The sequence of movements required for closing the bayonet lock 27 is described for the various embodiments by the Fig. 1a-1c , 4a-4c , 6a-6c , 9a-9c or 12a-12c clarifies.
[0058] In order for the bayonet pin 29 of the bearing band 21 to be inserted into the bayonet receptacle 31 of the carrying handle 15, the bearing band 21 must first be rotated by 90° relative to the carrying handle 15 compared to the orientation in which these components are ultimately to be coupled together, and then assumes the Fig. 1a , 4a , 6a , 9a or position shown in 12a, which corresponds to a release position of the bayonet bolt 29 relative to the bayonet receptacle 31. In Fig. 1b , 4b , 6b , 9b or 12b, the bayonet bolt 29 is already axially inserted into the bayonet receptacle 31, but is still in the release position, so that the bayonet lock 27 is not yet closed.
[0059] Only by subsequently rotating the bearing band 21 by 90° relative to the carrying handle is the bayonet bolt 29 rotated in the bayonet receptacle 31 into the coupling position, in which the positive locking elements 33 of the bayonet bolt 29, designed as bayonet wings, engage behind the corresponding positive locking elements 35 of the bayonet receptacle 31, designed as undercuts. This closed state of the bayonet lock 27, in which the bayonet bolt 29 is positively coupled to the bayonet receptacle 31 and thus the bearing band 21 is reliably connected to the carrying handle 15 or the entire swivel arm 13 via the bayonet lock 27, is in Fig. 1c , 4c , 6c , 9c or shown in 12c.
[0060] Due to the rigid arrangement of the bayonet bolt 29 on the bearing band 21, the intermediate state in which the bayonet bolt 29 is already axially inserted into the bayonet receptacle 31, but is not yet (fully) rotated into the coupling position (cf. Fig. 1b , 4b , 6b , 9b or 12b), clearly distinguishes the bayonet fitting 27 from an actually closed state based on the orientation of the bearing band 21 relative to the carrying handle 15. This reliably prevents the bayonet fitting 27 from being considered closed even though the bayonet bolt 29 is not yet in the coupling position. Furthermore, due to the rigid arrangement of the bayonet bolt 29, no tool is advantageously required for the described rotation, as the bearing band 21 and the carrying handle 15 (or the entire swivel arm 13) can simply be grasped by hand and rotated against each other.
[0061] From the in Fig. 1b , 4b , 6b , 9b In the intermediate position shown in Figure 12b, the bearing band 21 can, in the five illustrated embodiments, not only be positioned in the Fig. 1c , 4c , 6c , 9c The bayonet bolt 29 can not only be rotated in the position shown in Figure 12c, but also in the opposite direction by 90° into an alternative position, which corresponds to a further coupling position of the bayonet bolt 29 in the bayonet receptacle 31. In this further coupling position, the two bayonet wings of the bayonet bolt 29 engage precisely the one of the two undercuts of the bayonet receptacle 31 that they do not engage in the coupling position shown. The positive locking effect is the same in the alternative coupling position as in the coupling position shown.
[0062] Since the alternative position differs from the position shown by a total rotation of 180°, the bearing section 23 is arranged diametrically opposite to the position shown with respect to the bolt axis B in the alternative position. In this way, the fitting assembly 11 can be configured for a left-opening or a right-opening sash, depending on which of the two positions the bearing band 21 is rotated into. This is further facilitated by the fact that the bearing band 21 is mirror-symmetrical with respect to a mirror plane containing the bolt axis B.
[0063] In all five illustrated embodiments, anti-rotation means are provided between the coupling section 25 of the bearing strap 21 and the angled leg 17 of the carrying handle 15. When the bayonet fitting 27 is closed, these anti-rotation means prevent the bearing strap 21 from rotating relative to the carrying handle 15. The various embodiments differ, in particular, with regard to the specific design of these anti-rotation means.
[0064] During the Fig. 1 bis 3 In the first fitting arrangement 11 shown without claim, the carrying bracket 15 has a detent projection 37 on its leg 17 that projects parallel to the bolt axis B (cf. Fig. 3 ), while the coupling section 25 of the bearing band 21 has two detent recesses 39, 39', each corresponding to the detent projection 37, and thus being designed to be at least substantially complementary for interaction. The detent recesses 39, 39' are arranged such that the detent projection 37 of the carrying bracket 15 engages in one detent recess 39 when the bearing band 21 is coupled to the carrying bracket 15 and aligned so that the bayonet pin 29 assumes its coupling position, and engages in the other detent recess 39' when the bearing band 21 is coupled to the carrying bracket 15 and aligned so that the bayonet pin 29 assumes its further coupling position.
[0065] The rest projection 37 is integrally formed with the day frame 15 by embossing (cf. Fig. 3 , in which the carrying bracket 15 of the unclaimed first fitting arrangement 11 is shown separately). The locking recesses 39, 39' are designed as holes in the coupling section 25 of the bearing band 21. The cross-sections of the locking projection 37 and the locking recesses 39, 39' are each circular.
[0066] To prevent the detent projection 37 from simply striking the edge of the coupling section 25 when the bearing band 21, inserted into the bayonet receptacle 31 by the bayonet bolt 29, is rotated, thereby blocking further rotation into the coupling position, chamfers 41, 41' are formed on two corresponding edge sections of the coupling section 25. The chamfers 41, 41' are arranged such that the detent projection 37, when the bayonet bolt 29 is rotated into the coupling position, runs against one chamfer 41, and when the bayonet bolt 29 is rotated into the further coupling position, it runs against the other chamfer 41', thereby being axially retracted with respect to the bolt axis B and thus sliding onto the coupling section 25.The leg 17 of the carrying bracket 15 and the coupling section 25 of the bearing band 21 are clamped against each other, so that the detent projection 37 is pressed against the coupling section 25 until it automatically engages in the detent recess 39 or 39' upon reaching the coupling position or the further coupling position.
[0067] The in the Fig. 4 und 5 The second fitting arrangement 11 shown, which is not according to the invention, differs from the first fitting arrangement 11, which is not claimed, essentially in that the leg 17 of the support bracket 15 has a locking projection instead of a locking recess 39 of the type described above, and the coupling section 25 of the bearing band 21 has locking projections 37, 37' of the type described above, which are integrally formed instead of locking recesses. Since the support bracket 15 does not have a locking projection (cf. Fig. 5 , in which the support bracket 15 of the unclaimed second fitting arrangement 11 is shown separately), no chamfer needs to be formed on the coupling section 25. Instead, chamfered lateral edges of the leg 17 of the support bracket 15 can serve as chamfers 41, 41' (cf. Fig. 5 ) act in a corresponding manner as described above in order to axially push back one of the detent projections 37, 37' depending on the direction of rotation, so that it can slide onto the leg 17 and finally engage in the detent recess 39.
[0068] During the Fig. 6 bis 8 In the first embodiment shown according to the invention, two detent projections 37, 37' are also provided, both of which are part of an elastic spring device 43 designed as a leaf spring. This spring device 43, which is in Fig. 8 The spring assembly 43, which is shown separately, has two end sections that are bent over relative to the otherwise flat spring assembly 43. The detent projections 37, 37' are formed by these bent end sections and thus protrude from the rest of the spring assembly 43. For fastening the spring assembly 43, it has a rivet hole 47 corresponding to the bearing band 21 (see figure). Fig. 7 The bayonet bolt 29, with its base section 45, has a corresponding hole 49 through which it extends. The spring assembly 43 thus extends completely around the base section 45 of the bayonet bolt 29. By riveting the bayonet bolt 29 to the coupling section 25 of the bearing band 21, the spring assembly 43 is therefore trapped between the bayonet bolt 29 and the bearing band 21.
[0069] As particularly in Fig. 7 As can be seen, the coupling section 25 of the bearing band 21 has, in addition to the rivet hole 47, two locking recesses 51, 51' which are provided in the area of the locking projections 37, 37' and are therefore aligned with the locking recess 39 in the coupling position and the further coupling position of the bayonet bolt 29 (with respect to a viewing direction parallel to the bolt axis B). These locking recesses 51, 51' allow the spring-loaded locking projections 37, 37' to retract axially away from the leg 17 of the carrying bracket 15 when, as a result of the rotation of the bearing band 21 into the coupling position and the further coupling position, they run against the leg 17 and are thereby forced back. Upon reaching the coupling position or the further coupling position, the respective detent projection 37 or 37' can finally spring back into the detent recess 39.
[0070] The end sections of the spring assembly 43, which form the detent projections 37, 37', are further bent back such that the ends of the spring assembly 43 engage in the locking recesses 51, 51' even in its relaxed state. This provides additional protection against rotation of the spring assembly 43 relative to the bearing band 21. In the coupled position and the extended coupled position, the spring assembly 43 also engages in the locking recesses 51, 51' in this manner, so that the end section forming the detent projection 37 or 37' engaging in the detent recess 39 simultaneously engages at least partially in the corresponding locking recess 51 or 51'. Due to the small distance between the detent recess 39 and the respective locking recess 51 or 51',51' to each other and the simultaneous engagement of the same end section in both recesses ensures a particularly reliable locking against rotation of the bearing band 21 relative to the carrying bracket 15.
[0071] The in the Fig. 9 bis 11 The second embodiment shown according to the invention differs from the first embodiment according to the invention primarily with regard to the shape of the elastic spring device 43. In the second embodiment according to the invention, the spring device 43 is also designed as a leaf spring, but compared to the first embodiment according to the invention, it is laterally extended and therefore covers essentially the entire coupling section 25 of the bearing band 21. Furthermore, the end sections of the spring device 43, which form the locking projections 37, 37', are bent several times in a different manner, namely such that first a partial section is bent rearward, i.e., away from the support bracket 15, in order to engage in the respective locking recess 51 or 51', and a radially outwardly adjoining partial section is bent forward, i.e.,in the direction of the carrying handle 15, in order to engage in the locking recess 39 when the bayonet lock 27 is closed.
[0072] In the second embodiment according to the invention, the securing recesses 51, 51' also have a modified design compared to the first embodiment according to the invention. As is particularly evident in Fig. 10 As can be seen in the illustration where the bearing band 21 is shown separately, the locking recesses 51, 51' in the second embodiment according to the invention are not completely closed, but are open radially outwards with respect to the bolt axis B. This allows the detent projections 37, 37' and the detent recess 39 to extend further radially outwards or to be arranged radially further outwards. Due to the resulting greater distance from the bolt axis B, the anti-rotation device, by engaging the respective detent projection 37 or 37' in the detent recess 39, can withstand higher torques and is therefore particularly secure.
[0073] During the Fig. 12 bis 14 In the third embodiment shown according to the invention, the elastic spring device 43 is not arranged on the bearing band 21, but on the leg 17 of the support bracket 15. The support bracket 15 is in Fig. 14 The spring assembly 43 is shown separately in this figure, with the spring assembly 43 being depicted twice: once arranged on the support bracket 15 and, for better differentiation, also once separately. The spring assembly 43 is designed as a leaf spring which is inserted into and tensioned in a spring receptacle 53 formed on the leg 17 of the support bracket 15. A bent end section of the spring assembly 43, which projects from the leg 17 towards the coupling section 25 of the bearing band 21, forms the locking projection 37.
[0074] The coupling section 25 of the bearing band 21 has two locking recesses 39, 39' arranged diametrically opposite to each other with respect to the bolt axis B of the bayonet bolt 29. The locking recesses 39, 39' are not completely closed, but are open outwards in a radial direction with respect to the bolt axis B.
[0075] Furthermore, the coupling section 25 has two engagement contours 55, 55', each extending to one of the detent recesses 39, 39'. The engagement contours 55, 55' are arranged such that when the bearing band 21 is inserted into the bayonet receptacle 31 with the bayonet bolt 29 and is rotated towards the coupling position or the further coupling position, the detent projection 37 engages against one of the two engagement contours 55, 55' and is thereby radially retracted with respect to the bolt axis B. This is ensured in particular by the Fig. 13 The figure illustrates an intermediate state of rotation of the bearing band 21 relative to the support bracket 15, in which the detent projection 37 is radially deflected by the leading contour 55. This causes the detent projection 37 to experience a restoring force that biases it radially inwards, so that it finally engages in the detent recess 39 shortly before or upon reaching the coupling position.
[0076] In the third embodiment according to the invention, the insertion of the locking projection 37 into the respective locking recess 39 or 39' occurs in a radial direction. Subsequently, in the coupled position or the further coupled position (as in the other embodiments), the locking projection 37 engages axially in the respective locking recess 39 or 39', which positively locks the bearing band 21 against rotation about the bolt axis B relative to the carrying bracket 15. In this way, the fitting assembly 11 is particularly reliably secured against the bayonet lock 27 accidentally releasing. Bezugszeichen
[0077] 11 Fitting arrangement 13 Swivel arm 15 Carrying bracket 17 Leg 19 Further leg 21 Bearing band 23 Bearing section 25 Coupling section 27 Bayonet lock 29 Bayonet bolt 31 Bayonet receptacle 33 Positive locking means 35 Corresponding positive locking means 37, 37' Detent projection 39, 39' Detent recess 41, 41' Lead-in chamfer 43 Spring device 45 Base section 47 Rivet hole 49 Hole 51, 51' Safety recess 53 Spring receptacle 55, 55' Lead-in contour B Bolt axis
Claims
1. A fitting arrangement (11) for the leaf of a window, of a door or the like, said fitting arrangement (11) comprising - a pivot arm (13) which is configured to be fastened to the leaf and which has, at a hinge-side end of its longitudinal extent, a stay support (15) having a leg (17) angled transversely to the longitudinal extent, and - a support band (21) which is configured to be pivotably supported with a bearing section (23) at a pivot bearing, which is to be provided at the frame of the window or of the door, about an axis of rotation of the pivot bearing and which has a coupling section (25) which can be coupled to the angled leg (17) of the stay support (15) of the pivot arm (13) by means of a bayonet fastening (27), wherein the bayonet fastening (27) comprises a bayonet pin (29) extending along a pin axis (B) and a bayonet receiver (31), said bayonet pin (29) and bayonet receiver (31) being configured such that, in order to close the bayonet fastening (27), the bayonet pin (29) is axially plugged into the bayonet receiver (31) with respect to the pin axis (B) and is subsequently rotated relative to the bayonet receiver (31) about the pin axis (B) into a coupling position in which form-fitting means (33) of the bayonet pin (29) engage behind corresponding form-fitting means (35) of the bayonet receiver (31) and thereby block the bayonet pin (29) against axially exiting from the bayonet receiver (31), wherein the bayonet pin (29) is rigidly, in particularly rotationally fixedly, arranged at the stay support (14) or at the support band (21), wherein the stay support (15) has a latch projection (37, 37') projecting in parallel with the pin axis (B) and the support band (21) has a corresponding latch recess (39, 39') or, conversely, the support band (21) has the latch projection (37, 37') and the stay support (15) has the latch recess (39, 39'), and wherein the latch projection (37, 37') and the latch recess (39, 39') are arranged such that the latch projection (37, 37') engages, preferably axially, into the latch recess (39, 39') in the coupling position of the bayonet pin (29), characterized in that the latch projection (37, 37') is part of an elastic spring apparatus (43) which is in particular configured as a leaf spring, wherein the support band (21) has the latch recess (39, 39') and the stay support (15) has a securing recess (51, 51') into which a part of the spring apparatus (43) engages in order to thereby be secured against a rotation relative to the stay support (15) or, conversely, the stay support (15) has the latch recess (39, 39') and the support band (21) has a securing recess (51, 51') into which a part of the spring apparatus (43) engages in order to thereby be secured against a rotation relative to the support band (21), wherein the securing recess (51, 51') is at least partly aligned with the latch recess (39, 39') in the coupling position of the bayonet pin (29).
2. A fitting arrangement according to claim 1, wherein the rotation required for closing the bayonet fastening (27) advantageously extends over an angle of at least 60°, preferably of at least substantially 90°.
3. A fitting arrangement according to claim 1 or 2, wherein the bayonet pin (29) and the bayonet receiver (31) are configured such that the bayonet pin (29), after said axial insertion into the bayonet receiver (31), can be selectively rotated either into said coupling position or in the opposite direction of rotation about the pin axis (B) into a further coupling position in which form-fitting means (33) of the bayonet pin (29) likewise engage behind corresponding form-fitting means (35) of the bayonet receiver (31) and thereby block the bayonet pin (29) against axially exiting from the bayonet receiver (31), wherein the bayonet pin (29) is preferably rotated by 180° in the further coupling position compared to the coupling position.
4. A fitting arrangement according to any one of the preceding claims, wherein the support band (21) is designed with mirror symmetry to a mirror plane which is orthogonal to said axis of rotation (D) and / or includes the pin axis (B).
5. A fitting arrangement according to any one of the preceding claims, wherein means providing security against rotation are provided between the coupling section (25) of the support band (21) and the angled leg (17) of the stay support (15), automatically become effective in the coupling position of the bayonet pin (29) and then secure the bayonet pin (29) against leaving the coupling position.
6. A fitting arrangement according to any one of the preceding claims, wherein the spring apparatus (43) extends completely around a base section (45) of the bayonet pin (29) with which the bayonet pin (29) is fastened, in particular riveted, to the support band (21) or the stay support (15).