Fitting for fixing an actuating handle

Abstract

The invention relates to a fitting (1) for attaching an operating handle (2) to a door (D), a window or the like, with a part (3) rotatably mounted therein, which can be penetrated by a square pin (4), wherein the operating handle (2) has at one end (2a) facing the fitting (1) an end face recess (2b), in particular in the form of a blind hole, into which the part (3) engages in the mounted state, and with an elastic positive locking element (5), in particular in the form of an expanding element, which is attached or attachable to the rotatably mounted part (3), wherein the positive locking element (5) arranged on the part (3) can be inserted into and removed from the end face recess (2b) in the relaxed state, and wherein the positive locking element (5) can be tensioned or tightened by means of the square pin (4) or an additional part arranged thereon.is expandable and in this state forms a positive fit with the actuating handle (2), which prevents the actuating handle (2) from being pulled off or removed from the fitting (1).

Description

[0001] The present invention relates to a fitting for attaching an operating handle to a door, a window or the like.

[0002] Fittings for doors, windows, and the like have been around for a long time and are available in various designs. A door fitting, for example, can be attached to a door leaf and have a rotating receptacle for a square spindle. With most common fitting designs, an operating handle, such as a lever handle, latch, or knob, can be attached to the square spindle. The operating handle is then secured to the spindle, for example, with a threaded stud, such as a screw or clamp connection.

[0003] When the operating handle is actuated, the square spindle transmits the rotational movement to a lock or lock follower located in the door leaf, and possibly also to the opposite operating handle on the other side of the door. Depending on the lock used, this usually adjusts a latch, allowing the door to be opened. Similar solutions exist for windows and furniture.

[0004] If the operating handle is attached to a fitting or square spindle using a threaded stud or similar fastener, a recurring problem is that the operating handle can become unintentionally loosened or removable if the fastener loosens or is deliberately removed. This can occur with regular use of the operating handle, for example, due to wear and tear or a gradual loosening of the threaded stud caused by movement, and is undesirable. If a fitting is located on the exterior of a building, the attached operating handle can easily be stolen by loosening the threaded stud. This then necessitates repair of the fitting and / or replacement of the operating handle.

[0005] One object of the present invention is therefore to provide a fitting in which the aforementioned problems do not exist. At the same time, the operating handle should be easy to mount and dismount on the fitting. This object is achieved with a fitting having the features of claim 1. Further advantages will become apparent from the dependent claims.

[0006] The fitting according to the invention comprises a rotatably mounted part, which can be penetrated by a square pin, wherein the actuating handle has an end face recess at one end facing the fitting, into which the part engages in the assembled state. Furthermore, the fitting comprises at least one elastic positive locking element, which is attached or attachable to or in the rotatably mounted part, wherein the positive locking element arranged on the part, in its relaxed state, can either be inserted into and removed from the end face recess of the actuating handle or allows the rotatably mounted part to be inserted into and removed from the end face recess(s) of the actuating handle, and wherein the positive locking element can be clamped by means of the square pin or an additional part or clamping device arranged on the square pin, in particular in or on one end face thereof.It is expandable and, in this state, forms a positive fit with the operating handle, which advantageously prevents the operating handle from being pulled off or removed from the fitting. In one embodiment, the positive locking element can be arranged either entirely or only partially within the rotatably mounted part.

[0007] The front-facing recess of the operating handle can, for example, be a blind hole which is provided at an end of the operating handle facing the fitting and is suitable for receiving the rotatably mounted part of the fitting.

[0008] The elastic form-locking element can, for example, be an expanding element that can be expanded by means of the insertable square pin. In the expanded state, it forms a form-lock with the operating handle, while in the unexpanded state it does not form a form-lock.

[0009] Other positive locking devices besides a spreading element are conceivable and possible, for example latches, pins, locking, clamping and plugging devices, provided they are suitable to be adjusted by the square pin in order to form a positive locking connection with the operating handle.

[0010] The component attached to the square pin can be, for example, a bolt, screw, or similar element, which deflects and / or expands the positive locking element upon contact. It can also be a multi-part square pin, where the additional component forms or extends a section of the multi-part square pin. The additional component can also be, for example, a screw with a screw head. The additional component can be, but is not limited to, located on one end face of the square pin.

[0011] Because the positive locking element can be inserted into and removed from the end-face recess of the operating handle, it can be completely located within the operating handle, depending on the design of both the handle and the positive locking element, when the handle is attached to the fitting. This means the positive locking element is inaccessible from the outside when the handle is attached to the fitting. Accidental or deliberate disassembly of the operating handle is thus advantageously made more difficult or impossible.

[0012] Of course, this can also be achieved by the section of the rotatably mounted part in which the positive locking element is at least partially arranged engaging in the operating handle, so that the positive locking element is partially arranged in the rotatably mounted part and can be arranged together with it in the operating handle.

[0013] A further advantage lies in the simple installation, as the operating handle can simply be slid onto the fitting as long as the square spindle has not yet engaged with the positive locking element to form the positive lock. After sliding the operating handle onto the fitting or its rotatably mounted part, the square spindle can be pushed (further) into the fitting from the other side of the door, thereby ultimately forming the positive lock. The fitting according to the invention thus enables particularly simple installation, in which the operating handle snaps into place or is secured by inserting the square spindle. Further complex and potentially cumbersome installation steps, such as screw connections, are no longer absolutely necessary with the fitting according to the invention.

[0014] Of course, it is still possible, and possibly advisable, to provide a threaded pin for additional fastening of the operating handle to the fitting in order to minimize or avoid any play between the operating handle and the fitting.

[0015] Because the positive locking element is elastic, it advantageously returns to its original state as soon as the square spindle is removed far enough that it no longer interacts with the positive locking element to form the positive connection. This also makes disassembly of the operating handle particularly easy and requires no additional tools. If the square spindle is pulled out of the fitting from one side of the door, the positive locking element releases the operating handle, as the positive connection is broken. With a suitable design and arrangement of the positive locking element, the operating handle can then simply be pulled off the fitting. Nevertheless, the attachment to the fitting is particularly secure, since the connection can only be released from one side of the door, and wear-related loosening of any fastening screw, as is the case with prior art solutions, does not occur.

[0016] The positive locking mechanism, for example, need not be limited to a snap-fit, click, or clamping connection, where an additional force-fit connection is also conceivable and possible. Crucially, the positive locking element must prevent the actuating handle from being pulled off or disassembled. Pulling off the actuating handle typically occurs parallel to the axial direction of the square pin. According to the invention, this axial movement is limited or prevented by the tensioned or spread positive locking element.

[0017] Because the positive locking element is arranged on the rotatably mounted part and is tensioned or spread by the square spindle, a key aspect of the invention is that the fastening handle is actually attached to the fitting and not to the square spindle. The square spindle can be removed from the fitting in the installed state, thus releasing the operating handle. Various embodiments are possible in which either the square spindle and / or the rotatably mounted part transmits the rotational movement directly or indirectly to the lock or the lock cylinder.

[0018] Because the square pin tensions or spreads the positive locking element, the operating handle can be attached to one side of the door from the other. This means that, depending on the design of the operating handle and the fitting, the operating handle can completely enclose the fasteners, preventing it from loosening on one side. This prevents the operating handle from loosening unintentionally and protects against vandalism.

[0019] The positive locking device can be designed, for example, to have at least one arm with at least one tab. Two opposing arms, each with a tab, are particularly advantageous. The arms can be formed from a sheet of metal, with a tab formed at each end by bending or folding the metal outwards. In this way, the tabs function similarly to barbs, wedges, or stoppers molded onto the arms. Positive locking devices made of plastic or another sufficiently elastic yet robust material are also possible. It is also possible for the positive locking device to be designed without an annular section and to consist, for example, of two arms, each with a tab, with the two or more arms being individually attached to or within the rotatably mounted part.Fastening can be achieved, for example, by crimping. However, other fastening methods are also conceivable and possible, which offer sufficient stability and robustness, such as soldering, riveting, clamping, gluing, snapping, or the like.

[0020] The two arms can, for example, be positioned radially further inward relative to the axis of rotation in a first position, where the positive locking element is not tensioned or spread, than in a second position, where the positive locking element is tensioned or spread. By inserting the square pin into the fitting or the positive locking element, the two arms can be moved or spread from the first position to the second position. The tabs on the arms can be designed to allow the operating handle to be attached or removed in the first position, and to prevent removal and, if necessary, attachment of the operating handle in the second position. When the square pin is withdrawn from the positive locking element, the arms return to the first position because the positive locking element is elastic. The operating handle can then be removed from the fitting.

[0021] Of course, it is also possible for the positive locking device to have more than two arms, for example, three, four, or more. However, to make it as easy as possible to insert the square pin into the positive locking device, it can be advantageous if the arms are evenly distributed or equidistant from each other around the circumference or outer contour of the square pin. Since a square pin has an essentially square outer contour with four faces, two opposing arms or four arms, where two arms are positioned opposite each other, are particularly advantageous and easy to manufacture.

[0022] The arm(s) of the positive locking element can be arranged on an annular section of the positive locking device. Here and in the following, "annular" does not necessarily mean that this section has a perfectly circular cross-section. Naturally, the section can also have an oval, elliptical, rectangular, or square cross-section, with the corners of the rectangle or square also being rounded. In particular, the annular section can also have a cross-section that approximately corresponds to the outer contour of a square. The crucial point is that the positive locking device has a completely closed (annular) section, which, in preferred embodiments, is suitable, for example, for fastening, attaching, or sliding onto, onto, or into another part of the fitting.

[0023] The arms can, for example, be integrally formed with a ring-shaped sheet metal section and made of the same material as the ring-shaped section. However, it is also conceivable and possible that the arms are attached to the ring-shaped section and / or made of a different material. The crucial point is that the arms can be moved, directly or indirectly, from the first position to the second position by the square pin and return to the first position when the square pin is removed.

[0024] The arms and / or tabs can be designed to be spring-like, for example, by being made of suitable sheet metal. However, arms made of plastic or another material that is sufficiently elastic yet wear-resistant are also conceivable. Naturally, the ring-shaped section of the positive locking element can also be made of plastic or another suitable material. Sheet metal has the advantage of being relatively simple and therefore inexpensive to manufacture, and it can be designed to optimally meet the requirements for elasticity and wear resistance.

[0025] To attach the positive locking element to the fitting, the rotatably mounted part of the fitting can have a suitable projecting section, which can also be its end face, on which the positive locking element is arranged. The positive locking element can, for example, be attached to the rotatably mounted part, to the projecting section, or to the end face, for which a positive locking element with an annular section is particularly suitable. The circumference of the outer contour of the projecting section can be slightly smaller than the outer contour of the rest of the rotatably mounted part and correspond to the inner contour of the annular section of the positive locking element.

[0026] Advantageously, the positive locking element can also be attached to suitable existing fittings, and the fitting can thereby be retrofitted with the fastening mechanism according to the invention.

[0027] When attached, the arms and / or tabs of the positive locking element can be directed radially inwards, angled, or inclined relative to the axis of rotation, so that the tabs do not project radially beyond the outer contour of the remaining rotatably mounted part in the first position. In this way, the operating handle can be slid over the rotatably mounted part of the fitting in this position and removed again. The square pin can then, for example, be inserted into the annular section or the projecting section of the rotatably mounted part of the fitting and, upon exiting the projecting part, adjust the arms and thus the tabs radially outwards to form a positive locking connection with the operating handle.

[0028] In embodiments where the positive locking element is at least partially arranged in the rotatably mounted part, the projecting part or the end face of the rotatably mounted part must be designed such that the positive locking element, when attached, is at least partially arranged in the rotatably mounted part. For example, the projecting part may have one or more recesses through which the arms or tabs of the positive locking element project into the rotatably mounted part.

[0029] The positive locking element can also be secured by inserting it, at least partially, into the end face of the rotatably mounted part. For example, the end face or the projecting section can have a receptacle into which the positive locking element is inserted, section by section, in a form-fit and / or force-fit manner. An embodiment with an annular section is particularly suitable for this purpose, wherein the annular section has an outer contour that corresponds to the inner contour of the rotatably mounted part, such that the positive locking element can be inserted into the rotatably mounted part and is securely fastened therein.

[0030] Of course, other or different fastening devices can also be used to attach the positive locking element to or in the rotatably mounted part, such as snap-fit, clamping, form-fit, force-fit, or material-fit devices. The crucial point is that the positive locking element is securely attached to the rotatably mounted part.

[0031] When attached or inserted, the arms and / or tabs of the positive locking mechanism can project into the rotatably mounted part along its longitudinal axis and be directed radially inwards, angled, or inclined relative to the axis of rotation, so that the tabs do not radially extend beyond the outer contour of the rotatably mounted part in the first position. In this way, the operating handle can be slid over and removed from the rotatably mounted part of the fitting in this position.

[0032] Simultaneously, the positive locking device can allow the insertion of the square pin. The positive locking device can, in particular, have a receptacle for the square pin, which is preferably formed by the arms and / or the tabs. The square pin can then be inserted, for example, from one side into the rotatably mounted part in which the receptacle of the positive locking device is also located. As the square pin is inserted further, it is pushed into the receptacle of the positive locking device from a certain point onward, thereby adjusting, clamping, or expanding the positive locking device. This occurs, for example, by the arms and tabs of the positive locking device, which form the receptacle, being adjusted radially outward.

[0033] The positive locking element can have at least one inclined surface, which can be formed, for example, by the arm(s) and / or the tab(s). The inclined surface(s) can interact with the square pin, in particular with its end face, the additional part, or the clamping device, such that the arm(s) and / or tab(s) are clamped by the square pin and pressed and bent radially outwards. At least a portion of the at least one arm or tab can project through a window-like opening in the rotatably mounted part and protrude outwards. The inclined surfaces can, in particular, form the aforementioned receptacle or be a component thereof. The window-like opening can, for example, be arranged in an outer wall of the rotatably mounted part.

[0034] In this position, for example, two opposing tabs can protrude through a window-like opening in the outer wall of the rotatably mounted part and form an axial stop for the operating handle. The positive locking element can thus form a positive connection with the slid-on operating handle, which can therefore no longer be pulled off the rotatably mounted part.

[0035] The rotatably mounted part can have, at least in sections, an outer contour that corresponds to the inner contour of the end-face recess of the actuating handle. For example, a section of the rotatably mounted part can have a substantially cylindrical shape onto which the actuating handle can be attached. The end-face recess of the actuating handle can then also have a substantially cylindrical shape into which the corresponding section of the rotatably mounted part fits precisely.

[0036] To create a positive fit between the actuating handle and the rotatably mounted part, the outer contour and the corresponding inner contour can have complementary structures. For example, the cross-sections of the outer and inner contours can each be essentially round, but have complementary lugs, grooves, joints, or projections / recesses. The outer and inner contours in question can also have a square, rounded square, triangular, star-shaped, gear-shaped, or rectangular cross-section. In principle, any manufacturable shape is conceivable and possible that creates a positive fit that is rotationally fixed. The different shapes vary, among other things, in the ease of manufacturing and in the force transmission from the actuating handle to the rotatably mounted part.Accordingly, different forms may be advantageous depending on the application and can be selected accordingly.

[0037] The rotationally fixed positive locking mechanism ensures that the rotational movement of the operating handle is transferred to the rotatably mounted part, so that the lock or the lock groove and thus an associated bolt is moved when a user operates the operating handle.

[0038] The operating handle can have at least one recess in the frontal recess, which corresponds to the tensioned or spread form-locking means and forms the form-lock with it.

[0039] For example, the end-face recess of the actuating handle can have a first section with an inner contour that corresponds to the outer contour of a portion of the rotatably mounted part. Adjoining this section in the axial direction can be a section whose inner contour widens abruptly in the radial direction, creating a recess in the inner wall of the end-face recess. This recess can be located at the same height as the positive-locking element arranged on or in the rotatably mounted part when the part is assembled. The recess can, for example, correspond to exactly one tab, particularly one protruding from a window-like opening. There can also be multiple recesses, each corresponding to exactly one tab. Alternatively, the recess can be circumferential with respect to the inner contour of the end-face recess.

[0040] It is also possible to have multiple recesses positioned at different locations along the longitudinal axis. Similarly, several corresponding tabs can be provided at different points along the longitudinal axis. However, it is also possible, and potentially advantageous, to have multiple recesses along the longitudinal axis, with exactly one tab corresponding to each of these recesses. This allows the same operating handle to be mounted in different positions. This can be advantageous, for example, to use the same operating handle on different fittings with varying pivot points and / or door thicknesses.

[0041] When the operating handle is slid over the rotatably mounted part, the tabs of the positive locking element can, for example, engage in the recess(s) and thus, together with the recess(s), form a positive lock in the axial direction relative to the axis of rotation. This can happen automatically due to the elasticity of the positive locking element, so that a de facto click connection exists. The square pin can then be inserted and secures the arms or tabs only in the recess(s). However, it is also possible, and preferred, if the tabs do not engage in the recess automatically, but rather if the square pin moves the tabs from the first position to the second position and holds them there. This has the advantage that the arms or tabs...The tabs of the form-locking element move out of the setback on their own due to their elasticity, so that the operating handle can be removed from the fitting without any further tools.

[0042] Furthermore, the operating handle may have a hole or opening into which a threaded stud can be screwed. This allows the operating handle to be additionally secured to the square spindle in the conventional manner. Even if the threaded stud is lost or deliberately removed, the operating handle remains attached to the fitting and cannot be removed without damage until the square spindle is pulled out of the fitting or the operating handle from the other side. The threaded stud may also be provided as an additional feature, for example, to compensate for play between the operating handle and the fitting or the positive locking element, and to further lock the operating handle in a specific position.

[0043] The invention is explained in more detail below using an exemplary embodiment. Of course, the invention is not limited to this embodiment.

[0044] They show: Fig. 1a-1 fine cross-section through an embodiment of a fitting according to the invention in various positions before and during the fastening of an operating handle; Fig. 2 isometric views of an embodiment of a fitting according to the invention. Fig. 3a-3 fine cross-section through a further embodiment of a fitting according to the invention in various positions before and during the fastening of an operating handle; Fig. 4 isometric view of an embodiment of a fitting according to the invention with and without an inserted square pin; Fig. 4b cross-section through the embodiment of Fig. 4a; Fig. 5a-5 fine cross-section through a further embodiment of a fitting according to the invention in various positions before and during the fastening of an actuating handle; Fig. 6a-6 another possible embodiment in which two positive locking means are inserted into an end-face recess of the rotatably mounted part and whose tabs can be adjusted through lateral window-like openings of the rotatably mounted part into recesses of the actuating handle by means of the clamping means, in particular in the form of the square pin, to form the positive locking.

[0045] Figure 1aFigure 1 shows a cross-section through an embodiment of a fitting 1 according to the invention, to which no operating handle is yet attached. The fitting 1 is attached to a door leaf D, for example by screw connections (not shown). A lock with a lock follower and a bolt is arranged in the door leaf D; these are not shown for clarity. The fitting 1 has a rotatably mounted part 3, which serves to actuate the lock (not shown).

[0046] The rotatably mounted part 3 has a substantially cylindrical first section 3z with an outer contour onto which an actuating handle (not shown in this figure) can be attached. A projecting section 3' is integrally formed at the right end of the cylindrical section 3z in the figure; its outer diameter is slightly smaller than that of the first section. A positive locking element 5 is attached to the projecting section 3'.

[0047] The positive locking element 5 has an annular section 5' whose inner diameter is selected such that it can be securely inserted onto and held in place by the projecting section 3' of the rotatably mounted part 3. Naturally, the projecting chamfer 3' can also have a contour into which the annular section 5' can snap or engage to secure the positive locking element 5.

[0048] Two opposing arms 5" are arranged on the annular section 5' of the positive locking element 5, each with a tab 5‴ formed at its end. In the first position shown, the arms 5" are angled radially inwards so that the tabs 5‴ do not project radially beyond the outer diameter of the protruding section 3' or the rotatably mounted part 3.

[0049] From the other side of the door leaf D, a square spindle 4 can be pushed in the direction of the arrow into the fitting 1 or into the rotatably mounted part 3', as indicated by the dashed lines in the figure. The square spindle 4 can be pushed up to the projecting section 3' until it emerges from it, as shown in Figure 1b shown.

[0050] The square pin 4 protruding from the preceding section 3' moves the arms 5" of the positive locking element 5 radially outwards. In this second position shown, the positive locking element 5 is spread apart as defined in claim 1. It is therefore a spreading element. The tabs 5‴ of the arms 5" are also radially outwards and, in this position, project beyond the outer circumference of the rotatably mounted part 3. The actuating handle, not shown in this figure, cannot be slid onto the fitting 1 or onto the rotatably mounted part 3 in this second position. Depending on the elasticity of the tabs 5‴, however, embodiments are also possible which allow the actuating handle to be attached in this position but prevent it from being removed.

[0051] To attach the operating handle 2 to the fitting 1, the square pin 4 must be inserted as shown. Figure 1cThe elastic form-locking element 5 is first removed, so that it returns to its unspreaded initial position. The actuating handle 2, shown in cross-section, has a blind-shaped recess 2b at its end 2a facing the fitting 1, the bottom of which is indicated by the dashed line.

[0052] The end face recess 2b has an inner contour in the first section 2c' which corresponds to the outer contour of section 3z of the rotatably mounted part 3, so that the actuating handle 2 can be slid onto the rotatably mounted part 3 and forms a rotationally fixed positive fit with it. At its right end in the first section 2c', the inner contour of the end face recess 2b has a circumferential recess 2c where the inner diameter of the recess 2b changes abruptly.

[0053] Furthermore, the actuating handle 2 has an opening in the form of a threaded hole 2d on one outer wall for receiving a threaded stud (not shown). Corresponding to this threaded hole, the movable part 3 also has an opening 2d" through which a threaded stud can come into contact with the square pin 4. Since the square pin 4 is not located in the positive locking element 5, the tabs 5‴ are in the first position and the actuating handle 2 can be slid onto the rotatably mounted part 3.

[0054] In the Figure 1dThe operating handle 2 is attached to the rotatably mounted part 3, and the square pin 4 has been pushed back into the fitting 1 or the rotatably mounted part 3. This moves the arms 5" of the positive locking element 5 into the second position as described above, and the tabs 5‴ project radially beyond the outer diameter of the rotatably mounted part 3 with respect to the axis of rotation. As a result, the tabs 5‴ extend beyond the recess 2c and come into contact with the end face of the recess 2c.

[0055] In this position, the operating handle 2 can no longer be removed from the rotatably mounted part 3 and is therefore fixed to the fitting 1. Additionally, a threaded pin 2d' was screwed into the threaded hole 2d until it came to rest against the square pin 4, further securing the mounting handle 2 in this position. Any play between the components involved is thereby compensated for, and the operating handle 2 is thus firmly attached to the fitting 1. Naturally, the square pin 4 can also have a groove or a countersunk position to optimize the engagement of the threaded pin 2d'.

[0056] If the operating handle 2 is to be disassembled again, the square pin 4 must first be removed, as shown in Figure 1eThis causes the tabs 5‴ to return to their first position, thereby releasing the actuating handle 2. Once the threaded pin 2d' has been removed, the actuating handle 2 can be pulled off the fitting, as shown in Figure 1f shown.

[0057] The Figure 2 Figure 1a-1f shows an embodiment that is essentially the same as that shown in Figures 1a-1f, in an isometric view. The description and reference numerals apply accordingly.

[0058] Figure 3aFigure 1 shows a cross-section through a further embodiment of a fitting 1 according to the invention, to which no operating handle is yet attached. The fitting 1 is attached to a door leaf D, for example by screw connections (not shown). A lock with a lock follower and a bolt is arranged in the door leaf D; these are not shown for clarity. The fitting 1 has a rotatably mounted part 3, which serves to actuate the lock (not shown).

[0059] The rotatably mounted part 3 has a substantially hollow cylindrical shape with an inner and an outer contour. An actuating handle (not shown in this figure) can be attached to the rotatably mounted part 3, forming a rotationally fixed positive fit with the outer contour of the rotatably mounted part. At the right-hand end 3s of the rotatably mounted part 3, there is an opening into which a positive locking element 5 is inserted.

[0060] In the illustrated embodiment, the positive locking means 5 has an annular section 5', the inner diameter of which is selected so that it can be securely pushed into the opening of the rotatably mounted part 3 and held therein.

[0061] The positive locking element 5 can be held in the opening by friction. It can also be secured in the opening by one or more fastening elements. For example, the positive locking element 5 can have locking elements molded or attached to its outer contour, which correspond to correspondingly designed locking elements on the inner contour of the rotatably mounted part 3. However, other or additional fastening methods are also possible. The positive locking element 5 can also be screwed into the opening or end 3s of the rotatably mounted part 3, or be formed integrally with or molded onto it.

[0062] Two opposing arms 5" are arranged on the annular section 5' of the positive locking element 5, each with a tab 5‴ formed at its end. In the first position shown, the arms 5" are angled radially inwards so that the tabs 5‴ do not project radially beyond the outer diameter of the rotatably mounted part 3. In this position, the arms 5" and tabs 5‴ are completely enclosed within the hollow cylinder and, in this embodiment, do not project beyond the inner contour indicated by the dashed horizontal lines. The arms 5" and tabs 5‴ are arranged and shaped to form a receptacle for the square pin 4.

[0063] From the other side of the door leaf D, a square spindle 4 can be pushed in the direction of the arrow into the fitting 1 or into the inner contour of the lock or the rotatably mounted part 3, as also indicated by the dashed horizontal lines in the figure. In this embodiment, the square spindle 4 can be pushed into the fitting 1 until it protrudes from the end face 3s of the rotatably mounted part 3, as shown in Figure 3b The square pin 4 can, in this position, clamp and / or additionally secure the positive locking element 5 with the inner contour of the rotatably mounted part 3.

[0064] The inserted square pin 4 moved the arms 5" of the positive locking element 5 radially outwards. In this second position shown, the positive locking element 5 is spread apart in accordance with claim 1. It is therefore a spreading element. The tabs 5' of the arms 5" are also adjusted radially outwards and, in this position, their ends extend beyond the outer circumference of the rotatably mounted part 3.

[0065] The rotatably mounted part 3 has window-like openings 3f on its outer wall, each corresponding to an arm 5" or a tab 5‴, such that the tabs 5‴ extend through the openings 3f in the second, or spread, position shown. The geometry of the openings 3f must be adapted to the adjustment of the arms 5" and tabs 5‴ and is indicated in the figure by the vertical and oblique dashed lines.

[0066] The actuating handle, not shown in this figure, cannot be slid onto the fitting 1 or onto the rotatably mounted part 3 in this second position. However, depending on the shape and elasticity of the tabs 5‴ and the inner contour of the actuating handle, embodiments are also possible which allow the actuating handle to be attached in this position and only prevent it from being pulled off.

[0067] To attach the operating handle 2 to the fitting 1, the square pin 4 must be inserted as shown. Figure 1c The elastic form-locking element 5 is first removed, so that it returns to its unspreaded initial position. The actuating handle 2, shown in cross-section, has a blind-shaped recess 2b at its end 2a facing the fitting 1, the bottom of which is indicated by the dashed line.

[0068] The end face recess 2b has an inner contour in its first section 2c' which corresponds to the outer contour of the rotatably mounted part 3, so that the actuating handle 2 can be slid onto the rotatably mounted part 3 and forms a rotationally fixed positive fit with it. At its right end in the image of the first section 2c', the inner contour of the end face recess 2b has a circumferential recess 2c where the inner diameter of the recess 2b changes abruptly.

[0069] This circumferential setback 2c defines the beginning of a second section 2c" following the first section 2c' in the form of a circumferential groove. A third section 2c‴ follows the groove, with essentially the same internal contour as the first section 2c'.

[0070] Furthermore, the operating handle 2 has a bore 2d with an internal thread on one outer wall for receiving a threaded stud (not shown). Corresponding to this bore 2d, the movably mounted part 3 also has a bore 2d" through which a threaded stud can come into contact with the square pin 4, for example to form a frictional connection.

[0071] Since the square pin 4 is not arranged in the positive locking means 5 or in the rotatably mounted part 3 in the position shown, the tabs 5‴ are in the first position and the operating handle 2 can be pushed onto the rotatably mounted part 3.

[0072] In the Figure 3dThe operating handle 2 is attached to the rotatably mounted part 3, and the square pin 4 has been pushed back into the fitting 1 or the rotatably mounted part 3. This moves the arms 5" of the positive locking element 5 into the second position as described above, and the ends of the tabs 5‴ project radially beyond the outer diameter of the rotatably mounted part 3, out of the window-like openings 3f, relative to the axis of rotation. As a result, the tabs 5‴ extend beyond the recess 2c and abut the end face of the recess 2c. The ends of the tabs 5‴ are thus embedded in the second section 2c" that forms the groove.

[0073] In this position, the operating handle 2 can no longer be removed from the rotatably mounted part 3 and is therefore fixed to the fitting 1. Additionally, a threaded pin 2d' was screwed into the threaded hole 2d until it came to rest against the square pin 4, thus further securing the fastening handle 2 in this position. Any play between the components involved can be compensated for in this way, and the operating handle 2 is therefore firmly attached to the fitting 1. Of course, the square pin 4 can also have a groove or a countersunk position to optimize the engagement of the threaded pin 2d'.

[0074] If the operating handle 2 is to be disassembled again, the square pin 4 must first be removed, as shown in Figure 3eThis causes the tabs 5‴ to return to their first position, thereby releasing the operating handle 2. Once the threaded pin 2d' has been removed, the operating handle 2 can be pulled off the fitting 1, as shown in Figure 3f shown.

[0075] The Figure 4a Figure 1 shows an embodiment that is essentially the same as Figures 1a-1f in an isometric view. The description and reference numerals apply accordingly. On the right side of the image, the square pin 4 is inserted into the positive locking element 5, which is arranged section by section in the rotatably mounted part 3. The tabs 5‴ project accordingly from the window-like openings 3f.

[0076] On the left side of the image, the square pin 4 is not inserted into the positive locking element 5 or the rotatably mounted part 3. The tabs 5‴ accordingly do not protrude from the window-like openings 3f. In this position, the operating handle 2 can be slid onto and removed from the rotatably mounted part 3.

[0077] The Figure 4b shows a cross-section through the exemplary embodiment of Figure 4a .

[0078] New design from here on: The Figure 5a Figure 1 shows a further embodiment whose operation is fundamentally similar to the embodiment described above. Therefore, the same reference numerals are used, and where appropriate, reference is made to the description above. Figures 1a to 1f referred.

[0079] During the Figures 5a-5fIn the illustrated embodiment, the positive locking element 5 consists of two opposing arms 5", preferably made of sheet metal. A tab 5' is formed at one end of each arm. Unlike the embodiment described above, the two arms 5" are not connected via an annular section, but are each individually connected, pressed, or formed in one piece at their respective other ends 5e, in particular with the inner wall, of the rotatably mounted part 3.

[0080] The two ends at which the arms 5" are pressed onto the rotatably mounted part 3 are arranged such that they form a longitudinal receptacle for the square pin 4. In the Figure 3a In the position shown, the square pin 4 is not yet inserted into the door D or the rotatably mounted part 3, and the two arms 5" of the positive locking device 5 are in an untensioned state, or the positive locking device 5 is in an unspreaded state.

[0081] The rotatably mounted part 3 has two opposing window-like openings 3f on its outer wall, which are indicated by dashed lines. The tabs 5‴ of the arms 5" lie in the window-like openings 3f in the untensioned position shown, whereby the ends of the tabs 5‴ should not project beyond the outer diameter of the rotatably mounted part so that the tabs 5‴ do not impede the sliding on and, in particular, the pulling off of the operating handle 2.

[0082] In Figure 5b The square pin 4 is inserted into the door D or the rotatably mounted part 3 and protrudes from the rotatably mounted part 3 on the opposite side.

[0083] When the square pin 4 was inserted, the arms 5" were moved radially outwards from the end face or edges of the square pin 4 and are now in a tensioned position. The tabs 5' of the arms 5" now protrude through the window-like openings 3f and extend beyond the outer wall of the rotatably mounted part 3. The positive locking element 5 is now in the spread position.

[0084] Figure 5c Figure 1 shows the fitting 1 from which the square pin 4 has been removed. The arms 5" have returned to their original untensioned position, so that the tabs 5' no longer protrude beyond the outer contour of the rotatably mounted part 3.

[0085] The operating handle 2 is essentially the same in design as the operating handle 2 described above. Figure 1c , whose description and reference number are referenced here. In contrast to the operating handle 2 described above, the one described in Figure 3cThe illustrated operating handle 2, as well as the rotatably mounted part 3, does not have a bore on its outer wall for a locking device such as a setscrew. Of course, this embodiment can also be designed with corresponding bores and locking devices as described above.

[0086] In Figure 5d The operating handle 2 has been slid onto the rotatably mounted part 3, and the square pin 4 has then been reinserted into the door D and the rotatably mounted part 3. The arms 5" are thus back in their tensioned position, and the tabs 5' again engage through the window-like openings 3f. The ends of the tabs 5"' now lie in the groove 2c" as described above and form a stop for the return 2c; the operating handle 2 can no longer be pulled off the rotatably mounted part 3 or the fitting 1 in the position shown.

[0087] The Figure 5e This shows how the square pin 4 is first pulled out of the door D or out of the rotatably mounted part 3, and then the operating handle 2 is removed from the fitting 1. The processes are essentially the same as those described in the Figure 1e and 1f The processes described herein are hereby referenced.

[0088] The Figures 6a to 6d Figure 1 shows another possible embodiment in which two positive locking means 5 are inserted into an end-face recess 3ö of the rotatably mounted part 3 and whose tabs 5‴ can be adjusted through lateral window-like openings 3f of the rotatably mounted part 3 into recesses of the actuating handle by means of the clamping means, in particular in the form of the square pin 4, to form the positive locking.

[0089] The positive locking devices 5 are in the Figures 6a to 6c Each is shown in the tensioned state. Solely in the Figure 6dOn the left side, the positive locking device 5 is shown in the unstressed state, in which the tabs 5‴ do not extend through the window-like openings 3f, so that the operating handle can be removed from or slid onto the rotatably mounted part 3.

[0090] The positive locking elements 5 are inserted into the end-face opening 30 of part 3 for assembly and then, with their bent end sections 3a and 3c, engage the wall of the opening 30 such that their tabs 5‴ are located exactly in the area of ​​the window-like opening 3f of part 3. By inserting the square pin 4, the tabs 5‴ are pivoted outwards through the window-like openings 3f into the recesses of the operating handle, thereby forming the positive locking connection described above.

[0091] The positive locking means 5 can either, as shown, simply be pushed onto the rotatably mounted part 3, but it is better if the positive locking means 5 are additionally connected to it by welding, soldering or gluing.

[0092] The in the Figures 6a to 6d The illustrated embodiment is advantageously very short, thus allowing for greater flexibility in the design of the operating handle and enabling the use of angled push buttons.

[0093] During the Figures 6a to 6dIn the illustrated embodiment, the positive locking element 5 can be tensioned or spread open by means of the square pin (4), the clamping device, or an additional part arranged thereon, while still allowing subsequent sliding and mounting of the operating handle 2. This is ensured by the fact that the end region 5‴, in particular in the form of the tab, of the positive locking element 5, which already projects radially outwards beyond the rotatably mounted part 3 due to the clamping action, forms a locking hook. When the operating handle 2 is slid onto or mounted on the rotatably mounted part 3, this locking hook is moved out of its path of movement by the operating handle 2 itself and is thereby tensioned in order to clear the path for the operating handle 2 until it is fully slid onto or mounted on the fitting 1.

[0094] At the latest after the actuating handle 2 reaches the mounting position on the fitting 1, the actuating handle 2 releases the positive locking element 5, 5‴ completely or at least to such an extent that the positive locking element 5 springs back into the recess 2c, in particular the radially extending recess, of the actuating handle 2 to form the positive locking connection.

[0095] This allows for easy click-mounting of the operating handle 2 with the form-locking element 5 already spread or clamped, which significantly simplifies and shortens the assembly time.

Claims

1. Fitting (1) for attaching an operating handle (2) to a door (D), a window or the like, comprising a part (3) rotatably mounted therein, which can be penetrated by a square pin (4), wherein the operating handle (2) has at one end (2a) facing the fitting (1) a front-facing recess (2b), in particular in the form of a blind hole, into which the part (3) engages in the mounted state, and comprising at least one elastic positive locking element (5), in particular in the form of an expanding element, which is attached or attachable to or in the rotatably mounted part (3), wherein the positive locking element (5) arranged on the rotatably mounted part (3) can be inserted into and removed from the front-facing recess (2b) in or in its relaxed state, or the insertion and removal of the rotatably mounted part (3) into or from thefrom the frontal recess(s) (2b), and wherein the at least one positive locking means (5) can be clamped or expanded by means of the square pin (4), a clamping device or an additional part arranged thereon, and in this state forms a positive locking with the actuating handle (2) which prevents the actuating handle (2) from being pulled off or removed from the fitting (1).

2. Fitting (1) according to claim 1, characterized by the fact that either - the at least one positive locking means (5) is arranged at least sectionally in or on the rotatably mounted part or is firmly connected to it and / or - the positive locking means (5) has at least one, in particular two or more, arm(s) (5") with at least one tab (5'") each or is formed from at least one, in particular two or more, arm(s) with at least one tab (5') each.

3. Fitting (1) according to claim 2, characterized by the fact thatthe arm(s) (5") is / are arranged on an annular section (5') of the positive locking means (5).

4. Fitting (1) according to claim 2 or 3, characterized by the fact that the positive locking element (5) is an angled and / or bent sheet metal strip which is attached to the rotatably mounted part (3) with a first area (5a), in particular by welding, soldering, gluing, clamping, screwing or riveting, and which forms a tab (5‴) with a further area, in particular its one end area (5b), which is adjustable or movable from its normal position to form the positive locking with the operating handle by means of the square pin (4).

5. Fitting according to one of claims 2 to 4, characterized by the fact thatthe form-fitting part (5) lies in a recess, in particular an end-face bore, of the rotatably mounted part (3) and is attached to the rotatably mounted part with its end facing away from the tab, in particular encompassing at least sectionally the end face of the wall surrounding the recess with one end (5a).

6. Fitting (1) according to one of claims 2 to 5, characterized by the fact that the arm(s) (5") and / or the tab(s) (5‴) are resilient and in particular are made of a sheet of metal.

7. Fitting (1) according to any one of the preceding claims, characterized by the fact that the positive locking means (5) is arranged on a projecting section (3') of the rotatably mounted part (3), in particular is attached to it.

8. Fitting (1) according to any one of the preceding claims, characterized by the fact thatthe rotatably mounted part (3) has at least in sections an outer contour which corresponds to the inner contour of the end face recess (2b) of the actuating handle (2) such that the actuating handle (2) is positively locked or rotationally fixed to the part (3) in the fastened state.

9. Fitting (1) according to any one of the preceding claims, characterized by the fact thateither - the positive locking means (5) is arranged at an end face (3') of the rotatably mounted part (3), in particular at least partially inserted into the end face (3') or attached to the end face (3'), and / or - the positive locking means (5) or the arm(s) is connected, pressed or formed in one piece with the rotatably mounted part (3), in particular with its inner or outer surface, and / or - the positive locking means (5), in particular the arm(s) (5") and / or the tab(s) (5"), has a receptacle, engagement surface or through-opening for the square pin (4).

10. Fitting (1) according to any one of the preceding claims, characterized by the fact thatthe positive locking means (5) has at least one inclined surface, which is formed in particular by the arm(s) (5") and / or the tab(s) (5‴), which interact with the square pin, in particular with its end face, the additional part or the clamping device, such that the arm(s) and / or tab(s) are clamped by the square pin and pushed radially outwards and / or bent, and thereby at least a part of the at least one arm or tab projects through a window-like opening (3f) of the rotatably mounted part (3) and protrudes outwards.

11. Fitting (1) according to any one of the preceding claims, characterized by the fact that the rotatably mounted part (3) has at least one window-like opening (3f) on at least one outer wall, through which the positive locking means (5) extends in the tensioned or spread state, in particular with an arm and / or a tab.

12. Fitting (1) according to any one of the preceding claims, characterized by the fact that the rotatably mounted part (3) has at least in sections an outer contour which corresponds to the inner contour of the end face recess (2b) of the actuating handle (2) such that the actuating handle (2) is positively locked or rotationally fixed to the part (3) in the fastened state.

13. Fitting (1) according to any one of the preceding claims, characterized by the fact thateither - the actuating handle (2) has at least one, in particular circumferential or segmented, recess (2c), in particular a recess extending in a radial direction, in the end face recess (2b), which corresponds to the clamped or spread-open positive locking means (5) and forms the positive locking with it, and / or - the actuating handle (2) can be fastened or is fastened to the rotatably mounted part (3) by means of a locking means (2d"), in particular in the form of a threaded pin (2d').

14. Fitting according to claim 14, characterized by the fact thateither - the part (3) has a bore (2b), optionally with an internal thread, and the actuating handle (2) also has a through-hole, which may also optionally have an internal thread, wherein the locking means can be screwed either into the internal thread of the part (3) and / or into the internal thread of the actuating handle and / or - by means of a further locking element or by means of the locking means (2d") the square pin (4) can be locked or fastened to the rotatably mounted part (3), in particular by means of a form or friction fit.

15. Fitting (1) according to any one of the preceding claims, characterized by the fact that the additional part is attached or arranged in or on the end face of the square pin, wherein the additional part is in particular a screw with a screw head.

16. Fitting (1) according to any one of the preceding claims, characterized by the fact thatat least a part, in particular its tab (5‴) of the form-locking means (5) which is tensioned or spread by means of the square pin (4), the clamping device or an additional part arranged thereon, is adjustable or tensionable by the actuating handle (2) itself when the actuating handle (2) is pushed on, in order to allow the actuating handle (2) to move until it is fully pushed on or mounted on the fitting (1).

17. Fitting (1) according to claim 18, characterized by the fact that at the latest after the actuating handle (2) has reached its mounting position on the fitting (1), the actuating handle (2) completely or at least to the extent that the positive locking element (5) is released and relaxed so that the positive locking element (5) springs back into the recess (2c), in particular the radially extending recess, of the actuating handle (2) to form the positive locking connection.

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