EP1121501B1 - Window and/or door fitting - Google Patents

Abstract

A handle (10) supported pivotably but axially tight on an installation body (20) has a polygonal bar (30) mounted for rotation within a handle neck (12) for actuating a closing mechanism. Two drivers (15, 35) movable relative to each other are engageable in a non-positive and/or a positive way between neighboring surfaces (17, 37) either directly or by means of coupling elements (36, 40, 42) so that a torque transmission from the handle (10) to the polygonal bar (30) is free but is blocked from the polygonal bar (30) to the handle (10) as at least one coupling element (36) is displaced in the direction of the attack. A main portion of a polygonal driver (35) may be concentrically enclosed by a two-shell handle driver (15) having wings (52) with front faces (19) which drive e.g. pairs of spring-loaded roller pins (36) held in a wedge-shaped confining zone (55). Corner areas of indentations (31) of the polygonal driver (35) serve to attack the roller pins (36). Central parts (50) of the handle driver (15) may guide a compression spring (38) which loads engaging balls (47) in an outward direction; recesses (27) of the installation body (20) are associated to the balls (47) at enclosing surfaces (24; 44).

Description

The invention relates to a window and / or door fitting according to the preamble of Claim 1 and according to claim 24.

Fittings in the form of handles for opening and closing room closures, i.e. Windows and doors are often designed as rotary handles, the stop devices such as rosettes, base plates or the like. on a window frame or Türblatt be attached to a seated in the handle driver pin, e.g. a square, an associated locking mechanism to operate.

So that this does not happen by unauthorized persons, one has different security devices developed, inter alia, push-button latches and so-called parental controls. For example, DE 295 18 723 U1 describes a fitting with a outside of the handle located slider. You have to move this one way to the other be able to exert axial force on the sprung handle neck, characterized by a the square leading stop bushing is coupled; only after the catch The handle can be pivoted on it.

In other constructions you can define the handles in selected positions, e.g. in 90 ° positions. To release the rotational movement of such a locked handle, First, an assigned organ is to be actuated. But is not a handle initially not in one Given angular position, so no locking can take place and leaves the handle to move - also by external influence. This is based on burglary methods.

For turn-tilt fittings with a gearbox used to implement the rotary actuator serves in a linear movement of a push rod, the lock can be ineffective be made by drilling the window profile from the outside and using a Tool through the hole produced through the linkage is moved. A window can also be opened if the frame is drilled from the outside at the height of the square which then a tool can attack. In both cases, the square is rotatable and the fitting can be unlocked as a result.

Remedy has been tried with the widespread lockable window handles, the can not move in the locked state. Here, the user must be on it Be sure to lock the handle again and again. This is generally a key required, which may not be freely accessible to third parties; the difficult access to the However, key interferes with the use by authorized persons, so that this out Convenience often refrain from completing the window.

Common disadvantages of the known devices are also that the Window handles are subject to certain design restrictions when you use them Securing means e.g. wants to equip the said type. Also, the users are forced to actually operate the relevant elements, in part in a direction that deviates from the usual mode of operation

It is an important object of the invention to address these and other disadvantages of the prior art Overcome technology and create an improved handle, the actions Provides considerable resistance from the outside, but in the interior of the room without further ado is operable. In addition to clear structure is cost-effective production and Assembly sought. Also, with economic means greater freedoms in terms of shape design, use and / or movements achieved become.

This problem is solved by a window and / or door fitting for actuation a locking mechanism, with a handle in the form of at least one handle, the by means of a handle neck axially fixed-rotatably mounted on or in a stop body which is on a flat support, in particular a space termination element like door leaf, window frame or the like. is attachable, and with a in the stop body engaging or passing through polygon, which is used to operate the Locking mechanism is rotationally rigidly connected to the handle, wherein according to the invention according to claim 1 between handle and polygon provided a coupling arrangement is, with the one torque transmission from the handle to the polygon effected, however Lockable from the polygon to the handle. So you have a rotary handle in the Type of mechanical diode, depending on the direction of actuation either the usual Movement of the handle allowed or vice versa prevented. This is going to be very easy way a significant increase in security achievable. The constructive Total effort is low, so that the existing of few components Arrangement can be easily manufactured and assembled.

Another embodiment of the invention is based on a fitting in shape a handle, with a handle driver, which is designed as a slide and inside a deckle, e.g. a housing, a stop body or a Falzvertiefung a flat carrier - in particular a Raumabschlußelements such Door leaf, window frame or the like. - Is guided linearly, with a relative to the handle driver limited slidable Abtriebsmitnehmer, one transverse to the housing or stop body arranged and for actuating a locking mechanism with the Has handle connected output element, and with a between the Griffmitnehmer and the output element located coupling arrangement, the one between Has thrust surfaces of Griffmitnehmers seated coupling member and through the depending on whether a force on the handle or on the driven element takes place, a handle movement is freigeb- or blocked Here is according to the invention provided according to claim 24, that the coupling member is formed as a detent pin and slidable either at the deckle depending on the position of the handle cam is present [release position] or enters a locking recess [blocking position]. you recognizes that this design is not limited to rotary operation, but in general slidable and in particular linearly movable elements used over an effective at the same time as a blocking member, robust coupling member are functionally connected.

Although a similar principle is known from DE-A1-35 20 861, but this document relates a Rückdrücksperre to espagnolette fittings, from a lock can be actuated via a drive rod gear. Here is one on a drive rod section invariably fixed leaf spring either in a Sperrsteliung moved or lifted out of it, and the blocking is based solely on the Locking of a spring end on a narrow locking shoulder, which wear out and / or - with great force on a bolt - by bending the principle weak leaf spring can be overcome. In contrast, contains the novel Coupling arrangement a locking pin, which is movable between the drivers tied up, but not rigidly attached to a driver and in addition with his body itself forms a locking member in a sliding / rolling movement laterally is displaceable and acts by wedge-like self-locking Also large output side Forces can not overcome this lock because of the massiveness of the locking bolt.

Advantageous embodiments are subject matter of claims 2 to 23 and 25 to 27. Claim 28 refers to the use of the fitting according to the invention a room closure element.

Fig. 1

eine Druntersicht auf den Anschlagkörper eines Beschlags,

Fig. 2

eine vergleichbare Druntersicht in anderer Ausführungsform,

Fig. 3

eine Druntersicht einer noch anderen Ausführungsform,

Fig. 4

eine Schrägansicht, teilweise im Schnitt, einer Drehhandhabe,

Fig. 5a, 5b

je eine Auseinandergezogene Schrägansicht der Bestandteile des Fenstergriffs von Fig. 5 in Drauf- bzw. Druntersicht,

Fig. 6a bis 6c

je eine Drunteransicht einer weiteren Ausführungsform, und zwar im Ruhezustand sowie in zwei verschiedenen Betriebszuständen,

Fig. 7a bis 7c

je eine Drunteransicht einer anderen Ausführungsform eines Beschlags im Ruhezustand sowie in zwei verschiedenen Betriebszuständen,

Fig. 8

eine separate Darstellung einer Paßausnehmung im Anschlagkörper,

Fig. 9

eine abgewickelte Darstellung des Innenumfangs der Paßausnehmung von Fig. 8,

Fig. 10a bis 10b

je eine auseinandergezogene Schrägansicht der Bestandteile des Fenstergriffs von Fig. 7a bis 7c und

Fig. 11a bis 11c

je eine schematisierte Seitenansicht einer Schiebemechanik für Handhaben.

Further features, details and advantages of the invention will become apparent from the wording of the claims and from the following description of Ausführungsbeispieien with reference to the drawings. Show it:

Fig. 1

a bottom view of the stop body of a fitting,

Fig. 2

a comparable bottom view in another embodiment,

Fig. 3

a bottom view of yet another embodiment,

Fig. 4

an oblique view, partly in section, of a rotary handle,

Fig. 5a, 5b

each an extended oblique view of the components of the window handle of FIG. 5 in plan or bottom view,

Fig. 6a to 6c

depending on a bottom view of another embodiment, in the idle state and in two different operating states,

Fig. 7a to 7c

depending on a bottom view of another embodiment of a fitting in the idle state and in two different operating states,

Fig. 8

a separate representation of a fitting recess in the stop body,

Fig. 9

a developed view of the inner circumference of the fitting recess of Fig. 8,

10a to 10b

each an exploded oblique view of the components of the window handle of Fig. 7a to 7c and

Fig. 11a to 11c

each a schematic side view of a sliding mechanism for handling.

It can be seen in Fig. 1, the underside of a stopper body 20, which by means of pierced Cam 23 on a (not shown) window or door surface can be hit. Centrally sits a square 30, which is rotatable about the same axis as a (not here Drawn) handle which is rotatably connected to a Griffmitnehmer 15 With the Square 30 is a square driver 35 rotatably connected, the main part concentric is enclosed by the handle driver 15. The handle driver 15 and the Vierkantmitnehmer 35 are components of a coupling arrangement K with the one Torque transmission from the handle to the polygon 30 effects, however, from the polygon 30 is lockable to the handle.

The square driver 35 extends with a projection 33 to an inner wall 44th a cylindrical fitting recess 24 in the bottom side of the stopper body 20th A leaf spring 40 rests with its main part on the inner wall 44 and encloses doing the grip cam 15. With a predetermined small distance to the ends, form the contact surfaces 17, the spring 40 is provided with angle ends 42, the Shape of the projection 33 of the square driver 35 are adapted and in the drawn rest position between the contact surface 17 of Griffmitnehmers 15 and a contact surface 37 of the square driver 35 lie.

If the handle together with handle driver 15 is rotated, then a contact surface 17 hits Spring end 42. This is thereby pulled a little, so that a reduction of the spring diameter occurs. The previously fitting spring 40 can now easily move along the inner wall 44. Upon further rotation of Griffmitnehmers 15th is said spring end 42 on the contact surface 37 of the square driver 35th pushed, whereby the rotational movement over the projection 33 and the driver 35 is transferred to the square. The leaf spring 40 thus serves as a coupling member, i. it couples the Griffmitnehmer 15 and the Mehrkantmitnehmer 35 such that a on the torque acting on the handle is transmitted to the polygon 30 and that as long as the contact surface 17 the respective spring end 42 and thus the Mehrkantmitnehmer 35 pushes The handle can be turned freely.

However, when primarily a torque on the square 30 attacks, comes a contact surface 37 of the cam projection 33 at the associated angle end 42 of the Spring 40 to the plant. The latter is thereby widened in diameter, and indeed even with minimal compression of the associated spring end 42. As a result, jammed the spring 40 against the inner wall 44 with the result that the rotational movement is braked immediately and completely.

It can be seen that the handle driver 15, the spring 40 and the square driver 35th to the longitudinal center L of the stopper body 20 symmetrically constructed and arranged are so that functional independence of the direction of rotation is guaranteed. Important is also a predetermined rotational angle clearance B between the two drivers 15th and 35, which is determined by the distances between the contact surfaces 17 and 37 is, which must be greater than the thickness of the intermediate spring element 42. Thanks to this design, a driver (in the context of the angular play B) are rotated without the rotational movement on the other driver is transmitted, but acting on the spring 40 as a coupling element takes place. This jammed by friction - starting from the drawn rest position - in one direction and dissolves in the opposite direction.

Another embodiment of a self-locking mechanism for a rotary handle is apparent from Fig. 2. Again, concentric around the square pin 30 Axis the two drivers 35 and 15 of the coupling arrangement K rotatable stored. In the circumferential direction therebetween coupling members 36 are in shape of two formed for example as Wälzstifte coupling element pairs, the are each forced apart by a compression spring 38. The bivalve trained Griffmitnehmer 15 has on each shell a central portion 50 with arcuate Wings 52, whose peripheral ends have thrust surfaces 19 or form. The drivers 15, 35 also have engagement elements, which are referred to as entry 51 and associated Indentation 56 designed and with a rotation angle clearance B to each other so are arranged, that in the illustrated state of rest, the contact surfaces 17 and 37, respectively spaced apart from each other. The springs 38 between the rolling pins 36 or cylindrical rollers are guided along webs 46, along the inner wall 44 of the fitting recess 24 gone. The symmetrically between the end faces 19 of the arcuate Wings 52 of Griffmitnehmers 15 arranged webs 46 prevent the springs 38 during the rotational movements on the outside, i. at the fitting recess 24 and the Inner wall 44, could rub; This contributes to the smooth operation of the window handle.

As shown in FIG. 2, the shapes of the drivers 15, 35 allow the mutual Transmission of rotational movements without intervening coupling elements. In cooperation with wedge surfaces 39 on the square driver 35 determined However, the existing between the surfaces 17, 37 Drehwinkelsspiel B in the following explained function.

The coupling links 36 are located in a gap 55 of approximately trapezoidal Basic shape, which of the cylindrical inner wall 44, the thrust surfaces 19 and the wedge surface 39 is limited and widens toward the spring 38. Latter causes each of the two rolling pins 36 of each pair always as far as possible in this wedge-shaped gap 55 is pressed.

If you now move the handle and thus the handle driver 15, this is up to the bridging the distance between the contact surfaces 17, 37 initially without transmission a rotational movement on the square driver 35 possible. The pushing surface 19 of the arcuate wing 52 rather presses against the force of the spring 38 the adjacent Wälzstift 36 and pushes this tangent to the annular surface 44 from the wedge-shaped gap 55 out. The coupling member 36 is in the widening Zone 55 freely movable. Immediately thereafter, the contact surfaces 17 and 37 meet the two rotatable drivers 15 and 35, whereby the further Rotary movement of the outer driver 15 fully on the inner driver 35th is transmitted. The rolling pin 36 at the opposite end of the spring 38 is by the resulting during the rotational movement of the inner wall 44 friction also pushed out of the local wedge-space 55. Thus, both coupling elements 36 freely movable. The rotation of the window handle is without hindrance to the Square pin 30 transferred.

On the other hand, if a torque acts first or only on the inner driver 35, it acts its wedge surface 39 on the associated rolling pin 36. The effective force on it due to the geometric conditions a very small tangential and a very large radial component. Therefore, the rolling pin 36 becomes perpendicular with great force pressed against the inner wall 44, with the result that the resulting strong friction prevents a rotational movement. It can be seen that a direct or indirect rotation of the square pin 30 after bridging the rotation angle clearance B a Clamping of the or each coupling member 36 causes and thereby another Rotation stops immediately.

It may be advantageous to provide the inner boundary 24/44 with a material, the more yielding than the materials of the square driver 35 and the coupling member 36. As a result, during rotation of the inner driver 35 of the driven Rolling pin 36 press into the inner wall 44, bringing a positive connection receives, which allows an increased torque load on the square driver 35.

Fig. 3 shows another embodiment similar to Fig. 2, but in a simplified Construction. Here, only one laterally arranged Wälzstift pair 36 is present, the of the compression spring 38 is loaded and when turning the Griffmitnehmers 15 always in larger area of a wedge-shaped gap 55 remains, which between the Inner wall 44 and the opposite boundary of the Mehrkantmitnehmers 35th is formed with its wedge surfaces 39. So while the grip movement unhindered can happen on the other hand, is vice versa in an attack on the square 30 by the mitbewegten Mehrkantmitnehmer 35 after overcoming the angular play B only one Blocking possible. A material-related permanent deformation of the inner wall 44 by Torque from the attack side of a door or a window ago is for the user as a malfunction of the handle operation noticeable. This is at the same time Indication that an exchange of the handle 10, but at least of its "inner life" and / or other security measures are required.

The oblique view of Fig. 4 shows in partial section a handle 10 with a handle neck 12th and a recess 16 which continues axially as a threaded hole 14. A stopper body 20 has a guide sleeve 22 and pierced cam 23, for receiving of fastening screws 26 serve (whose thread is for simplicity not shown). The stopper body 20 is of a cover plate or cap 21 overlapped by a compression spring 13 against the handle neck bottom is supported liftable. Concentric with the guide bushing 22 has the stopper body 20 at the bottom of a recess 86 provided with recesses 84, the form-fitting an insert body 88 in the form of a locking ring 25 receives. In this is a fitting recess 24 formed for rotatably receiving the Mehrkantmitnehmers 35, which is rotatably connected to a polygon (here: square) 30. The latter for this purpose has a transverse hole 32 which receives a locking pin 34 which the Mehrkantmitnehmer 35 traversed across. On the periphery are in or on Mehrkantmitnehmer 35 Rolling pins or cylindrical rollers 36 held in a paired arrangement; preferably it is four pairs, wherein between each two rolling pins 36 each have a compression spring 38th located.

The handle driver 15 is provided with a head portion in the guide bush 22 with sliding fit rotatably guided and the end of the recess 16 in the handle neck 12 adapted. A Countersunk screw 18 fastens the handle driver 15 in the handle 10 by engagement in Threaded hole 14 of the handle neck 12 in such a way that the top of a on the Griffmitnehmer 15 trained annular flange 54 inside the stopper body 20 slidably is applied. The rear side of the annular flange 54 carries projections 45, which the Mehrkantmitnehmer Concentrate 35 concentrically. The rolling pins 36 associated circumferential ends the lugs 45 form the thrust surfaces 19th

It can be seen that the square driver 35 in the example shown four spoke-like Arms with Umfangsrundungen for sliding fit in the locking ring 25 has. To this Arms close indentations 56 with the wedge surfaces 39, which together with the paired sprung Wälzstiften 36 as described above, a self-locking cause as soon as a predetermined rotational angle clearance B between the square driver 35 and the handle driver 15 is bridged.

Fig. 5a shows the components of such a handle in exploded An oblique view from above, while Fig. 5b corresponding oblique views of depicting below. From this it can be seen that the stopper body 20 after installation of the items can be locked by a bottom plate 28, the stud bolts 29 in associated Locking holes 49 of the stopper body 20 can engage.

The function of the arrangement of Fig. 4 or 5a and 5b corresponds largely to those of Fig. 2 and 3, where, however, a self-locking by friction independent of any preferential positions of the handle is possible.

Yet another embodiment of a fitting self-locking comes from the Druntersichten of Fig. 6a to 6c forth. Again, a grip cam 15 closes within a cylindrical fitting recess 24 a square driver 35 concentric without, however, at rest (Fig. 6a) lateral contact surfaces 17, 37 of the driver 15, 35 touch. The with the - not shown here - handle drehstarr connected, clamshell handle 15 has middle parts 50, each with a Entrance 51 to the square 30 back, the axially recessed in the inner driver 35 sits, which is provided with a recess 51 to the shape-like indentation 56 An the middle parts 50 close to arcuate wings 52, whose ends thrust surfaces 19 or form. Between these are individual Wälzstifte or cylindrical rollers 36 is provided, which in the radial direction inwardly same shape indentations 31 in Vierkantmitnehmer 35 are assigned. The middle parts 50 of the two halves of Griffmitnehmers 15 lead a compression spring 38 and detent balls 47, the same Have outer diameter as the Wälzstifte 36. The latter are by the spring 38 loaded against the inner wall 44 of the Paßausnehmung 24, in the equidistant Distances, preferably offset by 90 °, recesses or detent recesses 27 are introduced.

Fig. 6b shows a state in which this arrangement by movement of the handle and thus the handle driver 15 with respect to the position shown above is twisted left. In this case, the locking balls 47 occur by the attack of corner areas the recesses 27 under engagement with the inner wall 44 inwards, while the Rolling pins or coupling members 36 in contact with the thrust surfaces 19 of Griffmitnehmers 15 are moved on a circular path along the inner wall 44. Should the Coupling members 36 previously sit in the recesses 27 is due to the orientation the thrust surfaces 19 and the corner shape of the recesses 27 ensures the handle driver 15 lifts the roller pins 36 out of the latching recesses 27. The rolling pins 36 enter the indentations 31 of the square driver 35, so that this inevitably coupled to the handle driver 15 and taken away becomes. The inwardly pressed balls 47 roll along the inner wall 44.

Attempting to turn on the square 30 starting from the rest position shown in FIG. 6a (FIG. 6 c), a corner region of the concavity 31 of the square driver 35 moves the Wälzstifte 36 radially outward. You get into the recesses 27 of the Stop body 20 and block immediately any further movement of the square driver 35. It can be seen that the square 30 only over a small angular range, which is defined by the rotation angle clearance B, can be rotated until the Self-locking suppresses any further rotation. An important feature of this Design is that in this case a fuse against external operation in or with the excellent locking positions done.

To torque transmission outside of the excellent locking positions of the handle 10 to lock the polygon 30 to the handle 10, sees the Construction of Fig. 7a to 7b a fitting recess 24 with four locking recesses 66 and four locking recesses 67, which, as Fig. 8 shows in detail, point-symmetrical to The axis of rotation D of the handle 10 and the drivers 15, 35 are and preferably at angles of 30 ° and 60 ° to the longitudinal or transverse axis L, Q of a stopper body 20 are arranged. Between the handle driver 15 and the Mehrkantmitnehmer 35th provided coupling members 36 are formed as locking pins. The detent to Finding the excellent positions of the window fitting is realized with a compression spring 68 and latching pins 47, by the spring force on the inside 44th the Paßausnehmung 24 or in the same shape locking recesses 67 are pressed. Turning the handle out of the excellent position causes it to slide out the locking pins 47 from the locking recesses 67 against the force of Compression spring 68 and thus for the user an increased torque. The length of the Locking pins 47 is chosen such that they only in the locking recesses 67 and not in the Locking depressions 66 can be pressed. For this purpose, as shown in FIGS. 8 and 9, the locking recesses 67 both a larger diameter and larger length dimensions as the locking pits. The same applies to the locking and locking pins 36, 47. This ensures that only in the excellent positions of Handle / fitting, here every 90 ° increased torque noticeable to the user becomes. The locking pins 36, however, due to their size both in the locking as be inserted into the locking recesses 66, 67.

Fig. 7a shows the arrangement in an excellent position of the handle. The ratchet pins 47 are pressed by the spring force into the locking recesses 67. The polygonal driver 35 in turn has two indentations 31, each having a locking pin 36 take up. The latter lie with the least possible movement between two Push surfaces 19 of the clamshell Griffmitnehmers 15 on the in Fig. 8 schematically indicated starting points S, so that when turning the Griffmitnehmers 15 positive connection between the concavity 31 of the Mehrkantmitnehmers 35 and the Thrust surfaces 19 of Griffmitnehmers 15 consists. As a result, no angular clearance occurs between the two drivers 15, 35, except one by manufacturing tolerances the components caused angular play.

In Mehrkantmitnehmer 35 is a compression spring 70 in a blind bore for each locking pin 36 71 fixed, the spring force is lower than that of the spring 68 for the locking pins 47. The locking pins 36 are by the spring force against the inner wall 44 of the fitting recess 24 or in a recess 66, 67 pressed. This ensures that that the locking pins 36 are pushed at any time by themselves into the recesses 66, 67.

If the handle is operated in a functional manner, the thrust surfaces drive 19 of Griffmitnehmers 15, the locking pins 36 on the circular path. Outside depressions 66, 67, especially in the excellent positions of the handle, the locking pins 36 always ensure a positive connection between the two drivers, 15, 35, whereby the rotational movement without play on the Mehrkantmitnehmer 35th is transferred to the polygonal pin 30. Excellent positions of the handle correspond to excellent positions of the associated window fitting; Thus, by the backlash proper positioning of the thrust rod and ensures a faultless function of the window.

Be the locking pins 36 during the rotational movement in the locking recesses 66th or pressed the locking recesses 67, the positive engagement is canceled and it arises a rotation angle clearance between the two drivers 15, 35 and accordingly also between handle and polygonal pin. By further turning the handle, the locking pins 36, however, by serving as functional surfaces 69 end edges or surfaces the recesses 66, 67 pushed out of these again, so that the positive connection is restored immediately. The short-term occurrence of the angular play between the excellent positions of the handle is not detrimental to the function the window, because the excellent positions play on the window fitting be transmitted. The spring force of the compression spring 70 is selected so that it only to an imperceptible detent by pushing out the locking pins 36 from the Recesses 66, 67 comes against the spring force.

In the event of burglary, the coupling arrangement K of the handle from the polygonal pin 30 subjected to a torque. The window handle is in an excellent Position, as in Fig. 7a, so can the Mehrkantmitnehmer 35 at Override the torque of the detent twist. If you reach the position As in Fig. 7b, the locking pins 36 by the spring force of the compression spring 70 in a Latch recess 67 or, as shown in Fig. 7c, pressed into a locking recess 66, i. the Locking depressions 67 fulfill a dual function as latching and locking recesses. Of the Positive locking of the locking pin 36 between the two drivers 15, 35 is released and the Mehrkantmitnehmer 30 rotates relative to the Griffmitnehmer on. By the displacement of the concavity 31 and acting as a functional surface Corner regions 39, the respective locking pin 36 is fixed in the locking recess 66 or 67th pressed and can no longer inward rotation into the concavity 31 back. He now forms a positive connection between the Griffmitnehmer 15 and the depression 66 or 67 in the fitting recess 24 of the stopper body 20. Is that between spaced contact surfaces 17, 37 of the handle driver 15 and the Mehrkantmitnehmers 35 existing Drehwinkelspiel so large that the contact surfaces 17, 37 the two drivers 15, 35 meet, the Griffmitnehmer 15 is also a bit further rotated. The obtained by the locking pin 36 positive engagement between However grip handle 15 and stop body 20 prevents further rotation the two drivers 15, 35 and thus the polygonal pin 30. The polygonal pin 30 can be rotated in the form shown a maximum of 30 °. At this angle of rotation the closure elements of the window fitting are still engaged and a Unauthorized opening of the window is not possible.

The described form-fitting variant of the self-locking does not require a high Accuracy of component dimensions, but guarantees outside the functional or locking positions of the handle always a reliable blocking function in a Torque transmission from the polygonal pin to the handle. In and around the rest positions the handle is no Drehwinkelspiel between handle and multi-pin available, so that Malfunction of the fitting can be effectively avoided. High costs in the production the components are reliably avoided.

Fig. 10a shows the components of such a fitting in exploded An oblique view from above, while Fig. 10b corresponding oblique views of depicting below. From this it can be seen that the coupling arrangement K in a separate Insert body 88 may be formed. The latter has a cylindrical for this purpose Paßausnehmung 24 in its inner circumference 44, the required locking and locking recesses 27, 66, 67 are introduced. The insert body is in a same shape Recording 89 inserted in the stopper body 20 and closes it down. A bottom plate 28 is therefore no longer required. The coupling arrangement can preassembled in a simple and convenient way and then in the stop body 20 are used, which has a favorable effect on the production costs.

The coupling links 36 of the coupling arrangement K can be used as rolling pins, cylindrical pins, Balls or be designed in other forms. As far as the inner wall 44 of the Stopper body 20 are provided with recesses 27, they have appropriate a coupling members 36 adapted to the shape; So you can, for example, through Replacing the locking ring 25 in Fig. 5a, 5b and components according to Fig. 6a to use 6d, wherein the recesses 86 at the same time as a detent recess for the Rastkugeln 47 can serve.

Yet another design of a handle according to the invention is in three different Positions shown in Figures 11a, 11b, 11c. The (not shown here) Handle is connected to a slider, which also forms the Griffmitnehmer 15 and in a deckle 24 of the fitting, such as a housing or a rebate recess, linearly guided. A transverse bore in Griffmitnehmer 15 contains a compression spring 38, which via a detent ball 47 with a detent recess 48 in the housing 20th interacts. In slide or grip grip 15 a recess 57 is present, in which a generally cuboid Vierkantmitnehmer 35 is housed. The driver 35 carries a square 30, e.g. perpendicular to the plane of the drawing across from the driver 35 protrudes. The latter has contact surfaces 37 at both ends, which are in the Resting state (FIG. 11a) with a movement play B contact surfaces 17 of the grip driver 15 face each other. The square driver 35 has a concavity 31 for receiving a coupling element 36, which in particular is designed as a latching pin can be and sits between thrust surfaces 19 of Griffmitnehmers 15.

At rest, the locking pin 36 is in the concavity 31 of the driver 35, while the detent ball 47 is seated in the detent recess 48 of the housing 20. Will now the slider or gripper driver 15 moves (FIG. 11b), then the ball 47 locks, wherein the compression spring 38 is compressed, and the detent pin 36 slides or rolls along the inside of the case. It can be seen that the slider in the housing or stop member 20 is free to move.

However, if a force attack on the square 30 on the square driver 35, so raises this with its acting as a wedge surface corner region the locking pin 36 upwards in As a result, the Schiebermitnehmer 15 in his by the Detent ball 47 already locked initially predetermined position and the handle can not are moved (Fig. 11c).

The invention is not limited to one of the above-described embodiments, but changeable in many ways. So can the self-locking, the one encountered unwanted force attack from the outside, by friction, by positive engagement or by combinations with different displacement of coupling links or Coupling elements are effected on or in a perimeter boundary 24. This can have friction surfaces and / or recesses or depressions, the one Support positive engagement with coupling elements or bring about in any case. In The scope of the invention also includes the reverse arrangement with projections or Elevations on or in the edge boundary 24, while the "inner" driver 35 associated recesses, such as locking recesses are provided. Are also conceivable tiltable mounted locking elements, which in a in the inner periphery 44 of the deckle 24 trained teeth intervene. The detents are for example instead the rolling or cylindrical pins 36 under spring load in the outer periphery of the Mehrkantmitnehmers 35 stored. The number of locking and Koppiungselementen, the in general also of cylindrical and spherical shape may have different forms, is depending on the construction of the handle 10 and its stopper body 20 variable. Likewise, the "radial" Blockierweg of coupling elements 36 depending on the load case be given constructive. Important is the wedging, jamming or locking of coupling elements between a boundary and an associated one Driving area.

All arising from the claims, the description and the drawing Features and benefits, including structural details, spatial Arrangements and method steps, both individually and in the most diverse Combinations essential to the invention.

LIST OF REFERENCE NUMBERS

B

Motion / angle game

D

axis of rotation

K

coupling arrangement

L

Longitudinal central / longitudinal axis

Q

transverse axis

S

starting point

10

Handle

12

handle neck

13

compression spring

14

threaded hole

15

handle driver

16

recess

17

contact surface

18

[Countersunk] Screw

19

pushing surface

20

stop body

21

Top panel / cover

22

guide bush

23

cam

24

fitting recess / deckle

25

Locking ring

26

mounting screws

27

Recess / barrier well

28

baseplate

29

studs

30

Polygon / square

31

Vaulting / storage recess

32

transverse hole

33

head Start

34

locking pin

35

Mehrkantmitnehmer

36

Coupling member / roller pin / lock pin

37

contact surface

38

Compression spring (s)

39

Functional surface / wedge surface

40

Coupling element / leaf spring

42

Angle end / spring end

44

inner wall

45

approaches

46

web

47

detent ball

48

catch recess

49

locking bore

50

midsection

51

entry point

52

wing

54

annular flange

55

Zone / space

56

indentation

57

recess

66

blocking recess

67

latching depression

68

Compression spring (detent)

69

Functional surface / edge

70

Compression spring (lock)

71

drilling

84

recess

86

bulge

88

insert body

89

admission

Claims (28)

1. Window and/or door fitting for operating a closing mechanism, comprising handle means including at least one handle (10) whose handle neck (12) is axially tight but pivotably supported on or in an installation body (20), which body is adapted to be fastened to a flat support, in particular to a room closing element such as a door leaf, window frame or the like, and comprising a polygonal bar (30) engaging into or penetrating the installation body (20), the bar (30) being connected for rotation with the handle (10) for actuating the closing mechanism, wherein a coupling assembly (K) is provided between the handle (10) and the polygonal bar (30) such that a torque transmission is achievable from the handle (10) to the polygonal bar (30) but is blocked from the polygonal bar (30) to the handle (10).
2. Fitting according to claim 1, wherein the coupling assembly (K) has two drivers (15, 35) arranged between the handle (10) and the polygonal bar (30), which drivers are adapted to be coupled together non-positively and/or positively either directly or via at least one coupling element (36; 40, 42) under a predefined clearance of motion (B) between neighboring driver surfaces (17, 37) in such a way that a torque acting on the handle (10) will be transmitted to the polygonal bar (30), but that a torque acting on the polygonal bar (30) will stop its movement and will block an actuation of the closing mechanism.
3. Fitting according to claim 2, wherein a first driver (15) is connected for rotation with the handle (10) and a second driver (35) is connected for rotation with the polygonal bar (30), both drivers (15, 35) being movable relative to each other within an enclosure (24) that is associated to the fitting.
4. Fitting according to claim 2 or 3, wherein a frictional engagement, a positive and/or a non-positive connection is achievable between at least one coupling element (36; 40, 42), a handle driver (15), a polygonal driver (35) and/or an enclosure (24) for stopping movement of the polygonal bar (30).
5. Fitting according to claim 3 or 4, wherein each coupling element (36; 40, 42) is adapted to be displaced and/or actuated by means of functional surfaces or flanges (17, 37; 19, 27, 31, 39; 66, 67, 69) formed on the drivers (15, 35) as well as on an enclosure (24).
6. Fitting according to any one of claims 3 to 5, wherein a handle driver (15) and/or a polygonal driver (35) is lockable in at least one specific functional position of the closing mechanism by detent or engaging means (47, 67).
7. Fitting according to any one of claims 3 to 6, wherein an enclosure (24) of the fitting comprises a cylindrical fitting recess in which the drivers (15, 35) are pivotable, with a handle driver (15) concentrically enclosing at least a main portion of a polygonal driver (35).
8. Fitting according to claim 7, wherein a projection (33) of a polygonal driver (35) extends to an inner wall (44) of a cylindrical fitting recess (24) and wherein a leaf spring (40) is provided as coupling element, which spring encloses with its main portion a handle driver (15) and bears against an enclosure (24; 44) and which fits, with inwardly bent ends (42) that match the shape of a projection (33) of a polygonal driver (35), between the contact surfaces (17, 37) of the drivers (15, 35).
9. Fitting according to claim 7, wherein the drivers (15, 35) have engaging elements designed as projections (51) and matching concavities (56) and are correlated with a clearance (B) of the angle of rotation so that opposite contact surfaces (17, 37) of the drivers (15, 35) will be kept apart in a rest position.
10. Fitting according to claim 9, wherein the handle driver (15) has curved wings (52) at a central part (50) whose peripheral ends comprise push or front faces (19).
11. Fitting according to claim 9 or claim 10, wherein the coupling elements (36) are roller pins, drop-in pins, cylindrical pins, cylindrical rolls or balls.
12. Fitting according to claim 11, wherein the coupling elements (36) form at least one pair of coupling members, the or each pair being loaded by a compression spring (38) so as to bear against adjacent front faces (19) of a handle driver (15) and being arranged in an intermediate space (55) of approximately trapezoidal basic shape which space (55) is confined by a cylindrical inner wall (44) of a cylindrical fitting recess (24), by push or front faces (19) of the handle driver (15) as well as by wedge surfaces (39) of a polygonal driver (35) and which space (55) widens towards an associated spring (38), and wherein the coupling elements (36) are movable radially outward by attack of the wedge surfaces (39) of the polygonal driver (35).
13. Fitting according to claim 11, wherein one coupling element (36) each is arranged between the push or front faces (19) of a handle driver (15) and wherein an indentation (31) in a polygonal driver (35) is assigned in a radial inward direction to each coupling element (36), at least corner zones of said indentation being adapted to act on the coupling element (36).
14. Fitting according to claim 13, wherein at least four recesses or locking depressions (27, 66) corresponding to the coupling elements (36) are provided in the inner wall (44) of a fitting recess (24).
15. Fitting according to claim 13 or claim 14, wherein each coupling element (36) is spring-loaded in a radial outward direction.
16. Fitting according to any one of claims 13 to 15, wherein diametrically opposed central parts (50) of a handle driver (15) guide a compression spring (38) which loads engaging balls (47) outwardly.
17. Fitting according to claim 16, wherein at least four engaging depressions (67) corresponding to the engaging balls (47) are provided in an inner wall (44) of a fitting recess (24).
18. Fitting according to claim 16 or claim 17, wherein the engaging balls (47) are bigger than the coupling elements (36), having in particular greater lengths and diameters.
19. Fitting according to any one of claims 16 to 18, wherein the spring tension acting on the engaging elements (47, 67) is greater than the spring tension acting on the coupling elements (36).
20. Fitting according to any one of claims 13 to 17, wherein the coupling elements (36) and/or engaging balls (47) are radially movable by attack of indentations (31) and of recesses (27, 66, 67), in particular by functional surfaces (69) formed in corner zones towards the inner periphery (44) of the fitting recess (24).
21. Fitting according to any one of claims 3 to 20, wherein the enclosure (24) is formed in the bottom of the installation body (20).
22. Fitting according to any one of claims 3 to 21, wherein the enclosure (24) is formed in an insert (25, 88) adapted to be positively and/or non-positively introduced in the installation body (20).
23. Fitting according to any one of claims 3 to 22, wherein the enclosure (24; 44) consists of a material that is more resilient than the material of a polygonal driver (35) and/or than the material of the coupling elements (36).
24. Fitting in the form of a handle (10), comprising a handle driver (15) designed as a slide and linearly guided within an enclosure (24), e.g. a casing, an installation body or a groove of a flat support - in particular a room closing element such as a door leaf, window frame or the like - , further comprising a driven engaging member (35) that is displaceable within limits relative to the handle driver (15), which member (35) includes a driven element (30) arranged at a right angle to the casing or installation body (20) and connected for rotation with the handle (10) for actuation of a closing mechanism, and further comprising a coupling assembly (K) arranged between the handle driver (15) and the driven element (30), which assembly (K) has a coupling element (36) located between push or front faces (19) of the handle driver (15) and by means of which a handle movement is either free or blocked, depending on whether a force is applied to the handle (10) or to the driven element (30), wherein the coupling element (36) is designed as drop-in pin and either slidably engages the enclosure (24) [release position] or enters into a locking depression (27) [blocking position], depending on the position of the handle driver (15).
25. Fitting according to claim 24, wherein the slide or handle driver (15) comprises a recess (57) for receiving the driven engaging member (35) which supports a square bar (30) projecting at a right angle and which includes at either end contact surfaces (37) that are opposite to contact surfaces (17) of the handle driver (15) with a clearance of motion (B).
26. Fitting according to claim 24, wherein the handle driver (15) comprises a transverse hole for receiving a compression spring (38) which interacts with an engaging depression (48) in the enclosure (24) via an engaging ball (47).
27. Fitting according to claim 24 or claim 25, wherein the coupling element (36) in its rest position [i.e. in the release condition] lies in an indentation (31) of the driven engaging member (35), but is movable into the locking depression (27) and thus into the blocking position by the corner zone of the driven member (35) when a force is applied to the latter.
28. Room closing element comprising a fitting according to any one of claims 1 to 27.

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