CN114829724A

CN114829724A - Assembly unit

Info

Publication number: CN114829724A
Application number: CN202080084648.5A
Authority: CN
Inventors: W·里格
Original assignee: Maco Technologie GmbH
Current assignee: Maco Technologie GmbH
Priority date: 2019-12-13
Filing date: 2020-12-14
Publication date: 2022-07-29
Also published as: EP4045744B1; PL4045744T3; DE102019134407A1; WO2021116490A1; EP4045744A1

Abstract

The invention relates to a fitting assembly for a sash of a window, door or the like, comprising a pivot arm designed to be fastened to the sash and having a support frame at the strip-side end of its longitudinal extension, the support frame having legs bent transversely to the longitudinal extension; the fitting assembly further comprises a support strip designed to be pivotably mounted on a pivot bearing to be provided to the frame of a window or door by means of a support section about the axis of rotation of the pivot bearing, the support strip having an articulated section which is coupleable to a curved leg of the support frame of the pivot arm by means of a bayonet connection. The bayonet connection comprises a bayonet pin extending along a pin axis and a bayonet receptacle, which is designed such that, for closing the bayonet connection, the bayonet pin is inserted axially into the bayonet receptacle relative to the pin axis and then rotated relative to the bayonet receptacle about the pin axis into a coupling position. Furthermore, a securing spring with a locking tongue is provided on the bayonet mount, which is arranged such that, when the bayonet pin is inserted axially into the bayonet mount, the securing spring with the locking tongue is loaded by the bayonet pin and is deflected axially relative to the pin axis against the restoring force of the securing spring into a deflected position, and, as the bayonet pin is rotated into a coupling position, the securing spring is released to return to a blocking position and is moved into the blocking position by the restoring force of the securing spring, and in the blocking position the bayonet pin is prevented from rotating out of the coupling position.

Description

Assembly unit

Technical Field

The present invention relates to a fitting assembly for a sash of a window, door or the like, in particular for a sash that can be opened in a swivel-tilt manner.

Background

The above-described mounting assembly may removably mount a sash to a window or door frame. For this purpose, the fitting assembly is fastened to the sash and the corresponding counterpart is fastened to the frame on the so-called strap side of the window or door, and can then be mounted movably, in particular pivotably, on the frame by means of a support strap (Lagerband). For example, the fitting assembly may comprise an elongated pivot arm which is fastened on the fan and which is connected at its strap-side end by means of a support strap to a pivot bearing to be provided on the frame, for example by suspending the support strap on the pivot bearing, so that the pivot arm together with the fan associated therewith is held by the pivot bearing and is simultaneously movable, in particular pivoting about a rotational axis defined by the pivot bearing. As a support strip, in particular a so-called angle steel strip is considered which can be bent one or more times in order to achieve a certain offset between the pivot arm and the pivot bearing.

Depending on the shape, weight and desired function of the fan, in particular depending on the type of openability, very different fitting assemblies can be used. Usually, the so-called scissor arm is used as a pivot arm for the fan which is both rotatable and tiltable, which allows that side of the fan where the scissor arm is arranged to exhibit a position parallel to the respective bearing which is only radially aligned, so that the fan is thereby tilted around its opposite side. In principle, however, the pivot arms mentioned can also be designed as purely rotating or purely tilting bar arms (or rotating or tilting strap collars (bandstups)) or allow other kinematics of the fan relative to the frame.

The corresponding variability as with pivot arms is not required for pivot bearings, in particular for so-called scissor bearings, which are usually arranged above the respective strap side of the fan. As they generally only need to allow the pivotability of the respective pivot arm and are therefore substantially independent of the shape of the fan and the type of openability thereof. The support strip mounted on the pivot bearing by the pivot arm can therefore be designed in the same way for different pivot arms. For this reason, it is advantageous not to manufacture the support strip as an integral component of the pivot arm, but rather as a separate part, which are then each firmly connected to the pivot arm. In this way, different pivot arms can be produced, but each pivot arm has the same bearing strip.

Another advantage of the two-part design is that the respective pivot arm is not fastened in this way from the beginning at the position of the strap side of the fan, i.e. about which side the fan can be pivoted. In particular, in principle corresponding pivot arms can be used for opening the fan on the left and right. The pivot arm will only be secured to a particular strap side when coupled to the support strap. Such fixation may result from the choice of support strap and/or the type of arrangement of the support strap on the pivot arm. In the latter case, the mounting assembly can thus also be reconfigured by changing the orientation of the support strap on the pivot arm. As a result, the assembly components can be used particularly flexibly.

However, with the design of the individual pivot arms and support straps, it is important that these components are reliably coupled to one another at the latest when the fitting assembly is mounted on the respective fan. This is because the fan is to a large extent carried by the frame through this coupling, particularly when it is in the pivoted open condition.

The pivot arm typically extends radially to the axis of rotation and is therefore fixed to the fan on the side of the fan oriented perpendicular to the strap side. On the other hand, the support straps are typically arranged on the strap side of the fan for interaction with the pivot bearings. It is therefore advantageous if the pivot arm has a support frame at its strip-side end, which support frame comprises a leg that is curved relative to the rest of the pivot arm and can be used for coupling to the support strip.

For example, the support strap may simply be screwed or riveted onto the curved leg of the support bracket. However, this type of coupling requires the use of tools and therefore implies an additional expenditure in assembling the assembly. The rivet connection is also irreversible, so that if the wrong pivot arm is selected or the wrong strap side is provided, the fitting assembly cannot be reconfigured.

An easily closable but yet reliable and again detachable connection type can be achieved by means of a bayonet connection. For this purpose, it can be provided in particular that a bayonet mount is provided on the support frame of the pivot arm and a bayonet pin is provided on the coupling section of the support strap. The support frame and the support strip can thus be inserted into one another and fastened to one another by rotation of the bayonet pins in the bayonet receptacles.

However, over time, for example due to operation of the fan or due to vibrations occurring, there is always a risk that the bayonet pins will rotate in the bayonet receptacles and thus the connection becomes loose. This risk is even greater if the bayonet pin is rotated after insertion into the bayonet receiver, but not far enough to reach the actual coupling position at all. Finally, there is also the risk of, during assembly of the assembly, simply forgetting to turn the bayonet pins inserted into the bayonet receptacles to latch the bayonet connections, since the pivot arm and the support strap appear to have been connected by insertion only, although they have not yet been fixed to one another in a form-fitting manner.

Disclosure of Invention

The object of the invention is to provide a mounting assembly of the type mentioned at the outset which can be used flexibly, can be mounted particularly easily and securely, and at the same time ensures a reliable coupling of the support strap to the pivot arm.

This object is achieved by a fitting assembly having the features of claim 1. Advantageous embodiments of the invention result from the dependent claims, the description and the drawings.

The fitting assembly for a sash of a window, door or the like according to the invention comprises a pivot arm which is designed to be fastened to the sash and has, at the strip-side end of its longitudinal extension, a support frame with legs which are bent transversely to the longitudinal extension. The fan may in particular be a fan that can be opened in a swivel-tilt manner. For this purpose, the pivot arm can be designed in particular as a scissor arm. In particular, the pivot arm has an elongated shape extending between said strip-side end and a strip-distal end opposite thereto. Both ends define a longitudinal axis of the pivot arm along which the longitudinal extension is defined.

The support frame with the leg bent relative to the rest of the longitudinal extension of the pivot arm can basically be designed as a structural unit with the pivot arm. For example, the support bracket may correspond to a portion of the pivot arm and may be substantially configured such that the pivot arm is bent on its strap-side end such that the bent portion forms the leg. However, the support bracket is preferably a component that is manufactured separately from the pivot arm and is securely connected (e.g., riveted) to the pivot arm. In this case, the support frame can be designed essentially as a two-legged angle iron (Winkel), one leg of which forms the curved leg. The support frame is then fastened to the pivot arm using the further leg of the support frame and advantageously parallel to the longitudinal extension of the pivot arm.

The pivot arm is preferably configured to be fastened in a slot on one side of the fan, in particular on the upper side of the fan. The support bracket may then be arranged at and around a corner of the fan, in particular in such a way that: such that the curved legs are at least substantially vertically oriented.

The fitting assembly further comprises a support strip which is designed to be mounted together with the support section on a pivot bearing provided on the frame of the window or door pivotably about the axis of rotation of the pivot bearing and which has an attachment section which can be coupled to a curved leg of the support frame of the pivot arm by means of a bayonet connection.

The support section can be designed, for example, as a sleeve into which a bearing pin of the frame-side pivot bearing can engage, so that the support strip can rotate about the bearing pin. The coupling section of the support strip may, for example, have an at least substantially plate shape. The support strip can be designed in particular as a so-called angle bar (Bandwinkel). The support strip can be bent (multiple times) in such a way that the plane defined by the plate shape of the coupling section deviates from the radial orientation of the axis of rotation, for example by an angle of at least 30 ° and/or at most 60 °, in particular about 45 °. The pivot bearing may in particular be a so-called scissor bearing.

The bayonet connection comprises a bayonet pin extending along a pin axis and a bayonet receptacle, which are designed such that, in order to close the bayonet connection, the bayonet pin is inserted axially into the bayonet receptacle relative to the pin axis and then rotated relative to the bayonet receptacle about the pin axis into a coupling position in which the form-fitting member of the bayonet pin engages behind a corresponding form-fitting member of the bayonet receptacle, thereby preventing axial withdrawal of the bayonet pin from the bayonet receptacle (relative to the pin axis). In particular, it can be provided that the insertion is a pure translational movement, i.e. not superimposed on any rotation. On the other hand, the subsequent rotation into the coupled position can also be superimposed by a movement component in the axial direction, for example in the manner of a screwing movement and/or for overcoming a latching edge. However, it can also be a substantially pure rotation with no motion component in the axial direction.

After the bayonet pin has been inserted into the bayonet receptacle, but before it is subsequently rotated relative to the bayonet receptacle, the bayonet pin is in a release position in which the form-fitting member of the bayonet pin does not engage behind a corresponding form-fitting member of the bayonet receptacle, so that the bayonet pin can be axially withdrawn from the bayonet receptacle again. By rotating the bayonet pin from the coupling position back into the release position, the form-fit connection can also be cancelled again and the bayonet connection can be released again.

In other words, the bayonet pin and the bayonet receptacle are designed in particular such that, in order to close the bayonet connection, the bayonet pin is inserted axially into the bayonet receptacle relative to the pin axis and then rotated relative to the bayonet receptacle about the pin axis from a release position into a coupling position, the coupling position being in the coupling position, wherein in the coupling position the form-fitting members of the bayonet pin engage behind the corresponding form-fitting members of the bayonet receptacle, thereby preventing axial withdrawal of the bayonet pin from the bayonet receptacle, but in the release position such prevention is not performed; the bayonet pin and the bayonet receiver can therefore also advantageously be designed such that, for opening the bayonet connection, the bayonet pin is rotated relative to the bayonet receiver about the pin axis from the coupling position into the release position and then removed axially out of the bayonet receiver relative to the pin axis.

The bayonet catch is preferably arranged on the support strip, wherein the bayonet mount is provided on the support frame. In principle, however, the bayonet catch can also be arranged on the support frame exactly on the contrary; in this case, the bayonet mount is then provided on the support strip. The form-fitting members can each be formed in particular by a radial projection relative to the pin axis, for example a bayonet wing, and/or a radial recess, for example an undercut, a groove or a sliding groove guide (kulissenfu gungen). In particular, the bayonet pin may have one or more such projections, preferably at least two bayonet wings, and the bayonet receptacle may have one or more such recesses, preferably at least two undercuts. In principle, however, the bayonet mount may also have one or more radial projections and/or the bayonet pin may have one or more radial recesses.

According to the invention, a securing spring with a locking tongue is provided on the bayonet mount, which securing spring with a locking tongue is arranged such that, when the bayonet pin is inserted axially into the bayonet mount, it is loaded by the bayonet pin and deflected axially relative to the pin axis against the restoring force of the securing spring into a deflected position, and the locking tongue is released by the rotation of the bayonet pin into the coupling position to return into the locking position, and the locking tongue is moved into the locking position as a result of the restoring force of the securing spring, in which locking position the securing spring with the locking tongue prevents the rotation of the bayonet pin out of the coupling position, in particular in a form-fitting manner.

The locking tongue can in particular be formed integrally with the securing spring. In principle, however, the locking tongue can also be formed separately and fastened to the securing spring, preferably at the free end of the securing spring.

The securing spring can be provided on the bayonet mount, in particular fastened to those parts (support strip or support) provided with the bayonet mount and adjacent to the bayonet mount, overlap the bayonet mount when viewed in a direction parallel to the pin axis, and/or be inserted into the bayonet mount.

Thanks to the mode of operation according to the invention, the locking tongue of the fastening spring automatically snaps into place when the bayonet connection is closed by inserting the bayonet pin into the bayonet receptacle and rotating the bayonet pin relative to the bayonet receptacle. The insertion causes a deflection and thus a tensioning of the securing spring with the locking tongue. Then, due to the pretensioning of the securing spring, said rotation enables the locking tongue to be axially reset into its locking position, thereby locking onto the bayonet pin. In the locked state, i.e. when the bayonet pin inserted into the bayonet receiver is in the coupling position and the locking tongue is in its blocking position, the bayonet pin is secured against leaving the coupling position.

Furthermore, the locking is preferably such that it is accompanied by an acoustic feedback. In other words, the locking is preferably clearly audible, such as a click or click. In this way, the installer of the fitting assembly advantageously receives positive feedback as to whether the bayonet connection is reliably closed, i.e. secured by the locking tongue. This facilitates safe use of the fitting assembly.

In order to open the bayonet connection, the securing of the locking tongue to the bayonet pin must first be released again in order to unlock the bayonet pin and release the bayonet pin for rotation out of the coupling position. In order to open the bayonet connection, it is advantageously necessary to move the locking tongue against the restoring force again from the locking position into the deflected position.

Preferably, the securing spring is not fully relaxed when the bolt is in its latched position, but continues to exert a pretension in the direction of the restoring force. In other words, in its locking position, the locking tongue is pretensioned in a direction away from the deflected position. Thus, the shock cannot move the latch tongue completely out of the latched position to release the bayonet pin, let alone simultaneously move the bayonet pin from the coupled position to the released position. Automatic opening of the bayonet connection is therefore virtually impossible.

According to an advantageous embodiment, the locking tongue of the securing spring is arranged such that it engages in the bayonet mount at least when the bayonet pin is not inserted into the bayonet mount. In this way, that is to say when the locking tongue is inserted into the bayonet mount, the locking tongue can be in the path of the bayonet pin and can therefore be loaded in the axial direction by the bayonet pin in a simple manner.

According to a further advantageous embodiment, the catch of the securing spring is arranged such that it engages into the bayonet mount in the locking position. In this way, the locking tongue can interact particularly easily with a bayonet pin inserted into the bayonet mount in order to lock it. In particular, the locking tongue may block a path that a portion of the bayonet pin, in particular the form-fitting member of the bayonet pin, returns when rotated out of the coupling position. By engaging in the bayonet mount, the locking tongue can preferably be supported on the bayonet mount radially outward with respect to the pin axis and thereby lock the bayonet pin particularly reliably.

According to a further advantageous embodiment, the bayonet pin has at least one bayonet wing projecting radially (relative to the pin axis) as a form-fitting member, wherein, when the bayonet pin is inserted into the bayonet receptacle and rotated into the coupling position, the locking tongue of the securing spring in the locking position bears against the bayonet wing in the circumferential direction (relative to the pin axis), so that the bayonet pin is preferably prevented from rotating out of the coupling position in a form-fitting manner. The locking tongue is preferably designed to be complementary to the bayonet wings, so that the locking tongue rests on the bayonet wings not only at certain points, but also at least along a line of contact, preferably along a contact surface.

It is particularly preferred that the locking tongue in the locked position both bears against the bayonet wings and engages in the bayonet receptacles and is supported on the bayonet receptacles radially outwards with respect to the pin axis. Thus, the locking tongue may be clamped between the bayonet wing and the bayonet receptacle when the bayonet pin is forced to rotate out of the coupling position, thus particularly reliably blocking the bayonet pin to prevent such rotation.

According to a further embodiment, it is also advantageous if the bayonet pin, when inserted into the bayonet mount, exerts a load on the locking tongue of the securing spring via a bayonet wing, in particular said bayonet wing, which protrudes radially (relative to the pin axis) and deflects it into the deflected position. The bayonet wings thus serve not only to couple the catch pin to the bayonet receivers by engaging behind corresponding form-fitting members of the bayonet receivers, but also to push the locking bolt back when the bayonet pin is inserted into the bayonet receivers and then to turn under the locking bolt so that the locking bolt can spring back into the locked state behind the bayonet wings.

According to a further advantageous embodiment, the securing spring is designed as a leaf spring which is attached to the support frame or the support strip by means of a fastening section and has a spring arm extending from the fastening section as an elongated structure, wherein the locking tongue is formed by an end section of the spring arm. A particular advantage of the leaf spring is that it takes up relatively little space. The spring arm may extend between a fixed end adjacent the fastening section and a free end, the end section then preferably being formed at the free end.

In this embodiment, the locking tongue is formed by said end section of the spring arm, i.e. it is an integral part of the spring arm and thus of the safety spring. For example, the spring arms can be designed as essentially flat strips. The locking tongue can then be formed by an end section of the strip which is bent one or more times and can thus project at least partially, in particular perpendicularly, from the rest of the spring arm. Alternatively, the locking tongue can also lie in the same plane as the rest of the spring arm.

In the case of a safety spring designed as a leaf spring, in a further advantageous embodiment at least the fastening section of the safety spring is inserted into a receiving recess formed on the support frame or the support strip, which receiving recess has a complementary shape with respect to at least the shape of the fastening section of the safety spring. The spring plate, at least with its fastening section inserted into the receiving groove, ensures particularly good protection against sliding through such a complementary design. Furthermore, the leaf spring is preferably fastened in such a way that it cannot be removed from the receiving recess. For example, one or more edge sections of the receiving groove may form a lug which protrudes beyond the fastening section of the leaf spring, thereby preventing the fastening section from leaving the receiving groove.

According to an alternative advantageous embodiment, the securing spring is designed as a torsion spring having a first leg and a second leg, which is mounted on and supported by the support frame or the bearing strip via the first leg, while the locking tongue is formed by an end section of the second leg. In particular, the torsion spring may comprise in a conventional manner a wire which is wound in a spiral around a spring axis in a central section of the torsion spring and whose opposite ends form two legs, i.e. the first leg and the second leg, which extend away from the central section at least in a substantially straight path. In the assembled state, the two legs are preferably pretensioned towards each other in the circumferential direction around the spring axis. A comparatively high force can be generated by means of such a torsion spring, which can contribute to a particularly firm locking of the locking tongue on the bayonet pin.

In such an embodiment, the locking tongue is formed by said end section of the second leg, i.e. it is an integral part of the second leg and thus of the safety spring. Thus, the second leg may extend between a fixed end through which the second leg merges into the helically wound central section and a free end, wherein the end section is preferably formed at the free end. In the end section, the second leg may be bent to form the locking tongue, which furthermore preferably has an at least substantially straight course. For example, the end section may be curved such that it has a complementary course to the profile of the bayonet wings of the bayonet pin against which the end portion rests when the bayonet pin is in the coupling position and the bolt is in the locking position. Furthermore, the curved end section may be adapted to define a loading plane which is loaded by the bayonet pin when the bayonet pin is inserted into the bayonet receptacle.

According to a further advantageous embodiment, the bayonet pin is fastened rotatably about a pin axis to the supporting strip or the supporting frame. In particular, the bayonet catch can preferably have a carrier contour, for example a hexagonal socket (Innensechskant) or a hexagonal socket (Innensechsrund), on the end face remote from the support strip or the support frame, in order to be able to be rotated in a simple manner using a corresponding tool to close or open the bayonet connection.

Drawings

The invention is further explained below, by way of example only, with reference to the accompanying drawings.

Fig. 1 shows a perspective view of a first embodiment of a fitting assembly according to the invention.

Fig. 2 shows a perspective cross-sectional view of the first embodiment.

Fig. 3a to 3c show detailed views of three different positions of the bayonet pin and the securing spring of the first embodiment.

Fig. 4 shows a perspective view of a second embodiment of a fitting assembly according to the invention.

Fig. 5 shows a perspective cross-sectional view of the second embodiment.

Fig. 6a to 6c show detailed views of three different positions of the bayonet pin and the securing spring of the second embodiment.

Detailed Description

The two exemplary embodiments of the mounting assembly 11 according to the invention shown in fig. 1 to 3 and 4 to 6 differ substantially in terms of the design of the respective securing spring 13, but otherwise largely correspond to one another. Identical or mutually corresponding parts are identified with the same reference numerals.

The fitting assembly 11 is intended for use on a sash of a window, door or the like (not shown) and comprises a pivot arm having a support frame 15 and a support strap 17. In the case of the pivot arm, which can be in particular a scissor arm for a rotatably-tiltably opening fan, only the support bracket 15 of the pivot arm is shown, the support bracket 15 being provided at the strap-side end of the pivot arm and being formed as an angle steel with a leg 19 which is curved transversely to the longitudinal extension of the pivot arm and a further leg 21 which is parallel to the longitudinal extension.

The bearing strip 17 is designed as an angle steel bar and has a substantially sleeve-shaped bearing section 23, into which bearing section 23 the bearing pin of the pivot bearing on the frame side, not shown, can engage in order to mount the bearing strip 17 and finally the entire pivot arm about the axis of rotation of the pivot bearing by means of the support frame 15. The support strip 17 also has a plate-like coupling section 25, which coupling section 25 is bent relative to the support section 23 such that it is offset parallel to the radial orientation of the axis of rotation.

The support frame 15 and the support strip 17 may be coupled to each other by means of curved legs 19 and coupling sections 25. For this purpose, a bayonet connection 27 is provided, which comprises a bayonet pin 29 formed on the coupling section 25 of the support strip 17 and a bayonet receptacle 31 formed in the leg 19 of the support frame 15. The bayonet pin 29 extends along a pin axis B (see fig. 2 or 5), which is formed rotationally symmetrically to the pin axis.

To close the bayonet connection 27, the bayonet pin 29 is inserted axially (i.e. parallel to the pin axis B) into the bayonet receiver 31 and then rotated relative to the bayonet receiver 31 about the pin axis B into the coupling position shown in fig. 1, 2 and 3c or fig. 4, 5 and 6 c. For this purpose, a bayonet pin 29 is rotatably mounted on the coupling section 25 of the support strip 17. For simple rotation of the bayonet bolt 29, a carrier contour 33 is formed in the end face of the bayonet bolt 29 remote from the coupling section 25, the carrier contour 33 being formed as a hexagonal sleeve in the exemplary embodiment shown.

In the coupled position, the form-fitting members 35 of the bayonet pins 29 engage behind the corresponding form-fitting members 37 of the bayonet receivers 31, and the bayonet pins 29 are thus secured against axial withdrawal from the bayonet receivers 31. The form-fitting members 35 of the bayonet pins 29 are designed as two bayonet wings formed by two projections projecting radially outwards in opposite directions with respect to the pin axis B.

The respective form-fitting members 37 of the bayonet receptacles 31 are formed by two undercuts which are arranged opposite one another in the same way as the bayonet wings of the bayonet pins 29 and are thus each engaged behind by one bayonet wing when the bayonet pins 29 are in their coupling position. On the other hand, if the bayonet pin 29 is rotated by 90 ° with respect to the coupling position and is in the release position shown in fig. 3a or 6a, the bayonet wings can be guided through the undercuts such that the bayonet pin 29 can be axially inserted into the bayonet receiver 31 or the bayonet receiver 31 can be axially removed again for releasing the coupling.

Furthermore, an anti-rotation device is provided between the leg 19 of the support frame 15 and the coupling section 25 of the support strip 17. The anti-rotation means comprise a projection 39 and a recess 41 formed on the leg 19 of the support frame 15, the projection 39 being arranged parallel to the pin axis B in the direction of the coupling section 25 of the support strip 17 from the leg 19 in the coupled state, and the recess 41 being formed on the coupling section 25 of the support strip 17. The projections 39 and recesses 41 are arranged such that: when the bayonet pins 29 are axially inserted into the bayonet receptacles 31, the projections 39 engage in the recesses 41, wherein the support strip 17 is prevented from rotating 15 relative to the support frame by this engagement.

Further recesses 41' are formed on the coupling section 25 and are arranged symmetrically with respect to the above-mentioned recesses 41 about the pin axis B. In this way, the support strip 17 can be coupled to the support frame 15 in two different orientations, so that the fitting assembly 11 can be used for both left-opening and right-opening fans. In an alternative orientation, not shown in the figures, the projection 39 does not engage in the recess 41, but in a further recess 41'.

The legs 19 of the support frame 15 are also provided with safety springs 13. In both embodiments shown, the securing spring 13 is arranged on the side of the leg 19 opposite to the side of the leg 19 which in the coupled state rests against the coupling section 25 of the support strip 17. The securing spring 13 has locking tongues 43, which are each formed by an end section of the elongated structure of the securing spring 13. The securing spring 13 overlaps the bayonet mount 31 via this locking tongue 43 and is also engaged in the bayonet mount 31 depending on whether the bayonet pin 29 is inserted into the bayonet mount 31 and in which rotational position the bayonet pin is.

The process of closing the bayonet connection 27 and the function of the securing spring 13 are explained by means of two embodiments shown in fig. 3a to 3c and 6a to 6 c. In fig. 3a and 6a, the bayonet pin 29 is in its release position in terms of its rotatability about the pin axis B, in which release position the form-fitting members 35 of the bayonet pin 29 and the corresponding form-fitting members 37 of the bayonet receptacle 31 are oriented offset from each other in the circumferential direction, so that they can be guided through each other in the axial direction. Thus, the bayonet pin 29 can be axially inserted into the bayonet receptacle 31.

When the bayonet pin 29 is inserted into the bayonet receptacle 31, the locking tongue 43 of the securing spring 13 is loaded by one of the bayonet wings of the bayonet pin 29 and is deflected in the insertion direction, i.e. axially with respect to the pin axis B into the deflected position shown in fig. 3B and 6B. This deflection takes place against the restoring force of the securing spring 31, which increases with increasing deflection.

In the deflected position, the securing spring 31 is thus pressed axially by its locking tongue 43 against the bayonet catch 29, which, however, does not prevent the rotation of the bayonet catch from the release position shown in fig. 3a or 6a into the coupling position shown in fig. 3c or 6c via the intermediate position shown in fig. 3b or 6 b. The bayonet wings, which deflect the locking tongue 43, are turned away under the locking tongue 43 in the process. Thus, when the bayonet pins 29 have reached their coupling position, the locking tongue 43 is moved axially back into the locking position shown in fig. 3c or fig. 6c and locked behind the bayonet wings by the restoring force of the securing spring 13.

In the subsequently occupied locking position, the locking tongue 43 engages in the bayonet receiver 31 and is in lateral contact with the bayonet wings on which a load has previously been exerted. Locking tongue 43 is located in the path of movement of the bayonet wings which must follow back to rotate bayonet pin 29 back to the release position. The bayonet catch 29 is thus prevented by the securing spring 13 in a form-fitting manner to prevent rotation from the coupling position back into the release position. Furthermore, the locking tongue is supported radially outward on the bayonet mount 31, so that it cannot be pushed out by the bayonet bolt 29 either. The bayonet pin 29 is also blocked by a blocking contour 45 formed on the bayonet receiver 31 to prevent further turning in the other direction, i.e. rotation beyond the coupling position. The bayonet connection 27 is thus reliably secured in its closed state by the securing spring 13, in particular against automatic release, for example due to vibrations.

The movement process for intentionally opening the bayonet connections 27 corresponds to the opposite process of closing the bayonet connections 27. However, unlike the case of automatic locking due to restoring forces when closed, the locking tongue 43 has to be manually moved to the deflected position when open, and then the bayonet pins 29 can be rotated again to the released position and then axially moved out of the bayonet receptacles 31.

In the first exemplary embodiment shown in fig. 1 to 3, the securing spring 13 is designed as a leaf spring. The leaf spring has a fastening section 47, by means of which the leaf spring is fastened to the leg 19 of the support frame 15. For this purpose, a receiving recess 49 is formed on the leg 19, which receiving recess 49 opens into the bayonet mount 31 and into which the securing spring 13 engages. The shape of the receiving recess 49 is complementary to the shape of the part of the securing spring 13 embedded therein, so that the securing spring 13 does not occupy any additional space and is securely mounted.

The fastening section 47 is held securely in the receiving groove 49 by edge sections of the receiving groove 49 which are each formed as a lug 51. The elongate spring arm 53 of the securing spring 13 extends from the fastening section 47 to the bayonet mount 31. The spring arm 53 forms the locking tongue 43 at its end section at its free end, i.e. remote from the fastening section 47. The contour of the locking tongue 43 is adapted to the contour of the bayonet mount 31 on the one hand and to the contour of the bayonet pin 29 on the other hand, the locking tongue 43 being arranged between the bayonet mount and the bayonet pin when the bayonet pin 29 is inserted into the bayonet mount 31 and rotated into its coupling position and the locking tongue 43 is in its locking position.

In the exemplary embodiment shown in fig. 4 to 6, the locking tongue 43 is designed as a torsion spring which is inserted into a spring receptacle 55 formed in the leg 19 of the support frame 15 and is supported on the leg of the support frame 15 by means of a first leg 57, while a second leg 59 of the torsion spring extends as far as the bayonet receptacle 31 and is pretensioned in the axial direction in the direction into the bayonet receptacle 31. The end section at the free end of the second leg 59 forms the locking tongue 43. The free end of the second leg 59 is bent in such a way that, on the one hand, it is supported on the contour of the bayonet receptacle 31 and, on the other hand, it is adapted to the contour of the bayonet pin 29, the locking tongue 43 being arranged between the bayonet receptacle and the bayonet pin when the bayonet pin 29 is inserted into the bayonet receptacle 31 and rotated into its coupling position and the locking tongue 43 is in its locking position.

As with the design of the leaf spring, the securing spring 13, which is designed as a torsion spring, is automatically locked by its locking tongue 43 behind the form-fitting element 35 of the cotter pin 29 when the bayonet connection 27 is closed, and thus reliably ensures that the bayonet connection 27 is prevented from opening automatically.

List of reference numerals

11 assembly unit

13 safety spring

15 support frame

17 support strip

19 supporting leg

21 additional legs

23 support section

25 connected section

27 bayonet coupling

29 bayonet pin

31 Bayonet accommodating part

33 carrier profile

35 form-fitting component

37 corresponding form-fitting member

39 projection

41 notch

41' additional recesses

43 bolt

45 latching profile

47 fastening section

49 receiving groove

51 lug

53 spring arm

55 spring housing

57 first leg

59 second leg

B pin axis.

Claims

1. A fitting assembly for a sash of a window, door or the like, comprising:

-a pivot arm designed for fastening to the fan and having, at the strap-side end of its longitudinal extension, a support bracket (15) having legs (19) bent transversely to the longitudinal extension;

-a support strip (17) designed to be pivotably mounted on a pivot bearing to be provided to the frame of a window or door by means of a support section (23) about the axis of rotation of the pivot bearing, the support strip having an articulated section (25) which is coupleable to a curved leg (19) of the support frame (15) of the pivot arm by means of a bayonet connection (27),

wherein the bayonet connection (27) comprises a bayonet pin (29) extending along a pin axis (B) and a bayonet receptacle (31) designed such that, for closing the bayonet connection (27), the bayonet pin (29) is inserted axially into the bayonet receptacle (31) relative to the pin axis (B) and then rotated relative to the bayonet receptacle (31) about the pin axis (B) into a coupling position, a form-fitting member (35) of the bayonet pin (29) engages behind an opposing form-fitting member (37) of the bayonet receptacle (31) and thereby prevents axial withdrawal of the bayonet pin (29) from the bayonet receptacle (31),

it is characterized in that the preparation method is characterized in that,

a securing spring (13) having a locking tongue (43) is also arranged on the bayonet mount (31) and is arranged such that:

-the safety spring (13) with locking tongue (43) is loaded by the bayonet pin (29) when the bayonet pin (29) is axially inserted into the bayonet receptacle (31) and is axially deflected relative to the pin axis (B) into a deflected position against the restoring force of the safety spring (13); and is

-by rotation of the bayonet pin (29) into a coupling position, the safety spring is released to return to a blocking position and the safety spring is moved into the blocking position due to the restoring force of the safety spring (13) and in the blocking position prevents rotation of the bayonet pin (29) out of the coupling position.

2. The fitting assembly according to claim 1,

wherein the locking tongue (43) of the securing spring (13) is arranged to engage in the bayonet receptacle (31) as long as the bayonet pin (29) is not inserted into the bayonet receptacle (31).

3. Fitting assembly according to claim 1 or 2,

wherein the locking tongue (43) of the securing spring (13) is arranged such that it engages in the locking position in the bayonet mount (31).

4. Fitting assembly according to any of the preceding claims,

wherein the bayonet pin (29) has at least one radially protruding bayonet wing as a form-fitting member (35),

and wherein, when the bayonet pin (29) is inserted into the bayonet receptacle (31) and rotated into the coupling position, the locking tongue (43) of the securing spring (13) in its locking position bears circumferentially against the bayonet wing and thereby prevents the bayonet pin (29) from rotating out of the coupling position.

5. The fitting assembly according to claim 4,

wherein the bayonet pin (29) when inserted into the bayonet receptacle (31) exerts a load on the locking tongue (43) of a securing spring (13) having the bayonet wings and deflects it into the deflected position.

6. Fitting assembly according to any of the preceding claims,

wherein the securing spring (13) is designed as a leaf spring which is fastened to the support frame (15) or the support strip (17) by means of a fastening section (47) and has a spring arm (53) which extends out of the fastening section in an elongated configuration, wherein the locking tongue (43) is formed by an end section of the spring arm (53).

7. The fitting assembly according to claim 6,

wherein at least the fastening section (47) of the securing spring (13) is embedded in a receiving recess (49) formed on the support frame (15) or the support strip (17), the receiving recess having a shape that is complementary to a shape of at least the fastening section (47) of the securing spring (13).

8. The fitting assembly according to claim 6,

wherein the securing spring (13) is designed as a torsion spring having a first leg (57) and a second leg (59), the torsion spring being mounted on the support frame (15) or the bearing strip (17) and being supported on the support frame or the bearing strip by the first leg (57), and the locking tongue (43) being formed by an end section of the second leg (59).

9. Fitting assembly according to any of the preceding claims,

wherein the bayonet pin (29) is fastened on the support band (17) or the support frame (15) rotatably about its pin axis (B).