EP0556442B1 - Actuating rod fitting for doors, windows and the like - Google Patents

Abstract

In an espagnolette fitting for windows, doors or the like, with an espagnolette 9 displaceable behind a cover rail 8, for example via an actuating mechanism, this espagnolette 9 is formed from two espagnolette portions 10 and 11 displaceable relative to one another for the purpose of a change of length and non-positively and positively connectable to one another in a plurality of reference positions via coupling members 12 and countercoupling members 13, the espagnolette portions 10 and 11 being held in connection with one another in predetermined grid dimensions after the disengagement of the coupling members 12 and countercoupling members 13 held in engagement with one another by means of spring force 15. So that easy readjustment of the coupling connection between the espagnolette portions 10 and 11 is possible when the espagnolette fitting is already installed in a functionally correct manner, the two espagnolette portions 10 and 11, at least in the region of their mutually assigned coupling members 12 and countercoupling members 13, are received over their maximum displacement travel in a guide 14 connected to the cover rail 8. The first espagnolette portion 10 is supported in the direction of its height in the guide 14 and is equipped with coupling members 12 extending in the direction of its profile height. The second espagnolette portion 11 has a profile height which corresponds to only a fraction of the profile height of the guide 14 and is equipped, over its entire profile height, with the countercoupling members 13. The second espagnolette portion 11 rests on a support bearing 15 seated at the bottom in the guide 14 and subjected upwards to the spring force, whilst the cover rail 8 is provided, above the support bearing 15 subjected to the spring force, with a perforation 19 as a passage for a pin-like actuating tool, for example a screwdriver 22. By means of the pin-like actuating tool 22, the second espagnolette portion 11 can, on the one hand, be disengaged by means of its countercoupling members 13 downwards out of the coupling members 12 of the first espagnolette portion 10 counter to the spring force exerted on the support bearing 15 and, on the other hand, in the disengaged position, be displaced longitudinally by one or more grid dimensions in relation to the first espagnolette portion 10. <IMAGE>

Description

The invention relates to an espagnolette fitting for windows, doors or the like with a push rod which can be displaced behind a faceplate, for example via an actuating gear, and which can be displaced relative to one another in two reference positions by means of coupling elements and counter-coupling elements which can be connected to one another in a force-locking and positive-locking manner -Teilteile exists, the connecting rod sections after disengagement of the coupling elements and mating coupling elements held in engagement with each other by a spring force are held in a detachable manner in a predetermined grid connection, the first connecting rod section being supported in its height direction and with coupling elements running in the direction of its profile height is equipped, the faceplate being provided with an opening as a passage for a pin-like actuating tool, for example a screwdriver,
and wherein, by means of the pin-like actuating tool, the mating coupling elements of the second connecting rod section can be disengaged from the coupling elements of the first connecting rod section against the spring force.

In a generic known connecting rod lock according to DE-A-25 04 420, two connecting rod sections which are longitudinally slidably guided at a distance from one another are coupled with the interposition of a leaf spring. Here, the leaf spring not only has the task of keeping coupling elements and counter coupling elements for connecting the two connecting rod sections into engagement connection with one another. Rather, the leaf spring also has the essential task of transmitting thrust and tensile forces which act on the connecting rod sections.

A connecting rod section has toothing as coupling elements directly on the longitudinal edges of an elongated hole. A mating part with teeth serves as the mating coupling element, which is connected to one end of the leaf spring, which in turn firmly engages the second connecting rod section with its other end.

It is readily apparent that the leaf spring elastically deforms under the action of longitudinal forces between the two connecting rod sections and, as a result, does not ensure an exact transmission of movement from one connecting rod section to the other.

It is disadvantageous, however, that the mating coupling elements of the leaf spring with the coupling elements of a connecting rod section in every possible switching position of the Espagnolette lock can be disengaged. It is therefore possible to bring the two connecting rod sections into mutually opposite coupling positions, which not only impair the fitting functions, but can even cause damage and destruction to the overall fitting.

From DE-GM 69 26 148 it is also known in the case of espagnolette fittings for tilt-and-turn windows or the like to use adjustable toggle bolts which have two espagnolette sections which are relatively displaceable for the purpose of changing the length and which, in several reference positions, have corresponding rows of teeth as coupling elements and counter coupling elements can be connected to each other in a non-positive and positive manner. It is also already provided to hold the coupling elements and mating coupling elements of the two connecting rod sections in engagement connection with one another by means of a leaf spring which is permanently connected to the one connecting rod section, while its other end acts on the second connecting rod section, around the latter to keep mating coupling elements designed as a row of teeth in operative connection with the coupling elements of the first connecting rod section formed by a toothed slide.

A disadvantage of this known connecting rod fitting is that the area of the connecting rod fitting having the coupling elements and counter coupling elements of the two connecting rod sections and also the leaf spring securing their mutual coupling engagement on a window or a door have a permanently exposed arrangement, so that they are free for everyone are accessible and can therefore be manipulated in an inadmissible or at least undesirable manner.

Another disadvantage of the known espagnolette fitting can be seen in the fact that it can only be used in connection with those windows and doors in which the casement frames are composed of metal or plastic profiles which have undercut profile channels on their peripheral circumferential surfaces, into which the espagnolettes - without Faceplate cover - must be used.

DE-OS 22 23 775 already includes a connecting rod fitting for windows, doors or the like. is equipped with an actuating gear, displaceable drive rod which consists of at least two drive rod sections which can be displaced relative to one another for the purpose of changing the length and which can be connected to one another in a positive and positive manner in several reference positions via coupling elements and mating coupling elements and which are held in connection with one another in predetermined grid dimensions.

In this case, however, it is a question of creating an espagnolette fitting which permits attachment to the window or door sashes without carrying out any cutting work, and in which for this purpose the coupling elements and counter-coupling elements of the two connecting rod sections are used directly against the effect when carrying out the attachment work can be brought into actuating connection by spring elements. However, it is not possible to readjust the coupling connection between the two connecting rod sections when the connecting rod fitting is installed on the window, on the door or the like.

The aim of the invention is to avoid the shortcomings inherent in the known connecting rod fittings described in more detail above. It is therefore the task of specifying an espagnolette fitting of the type described at the outset, which, in the functionally installed state, enables problem-free adjustment of the coupling connection between the espagnolette sections, but in which the adjustment and coupling area between the two espagnolette sections is in the Installation position is concealed below the faceplate.

To achieve this object, an espagnolette fitting according to the invention is characterized in that
that the two connecting rod sections run at least in the area of their directly associated coupling elements and counter coupling elements over their maximum displacement path in a guide connected to the faceplate, that only one of the two connecting rod sections is supported against the underside of the faceplate,
while the second connecting rod section rests below the opening in the faceplate on a support bearing seated in the guide at the bottom and subjected to the spring force upwards,
that the first connecting rod section has a slot-like opening for the pin-like actuating tool, which connects to the slot-like opening in the faceplate,
and that the second connecting rod section can only be disengaged from the coupling elements of the first connecting rod section in a disengaged position of the entire connecting rod fitting through the openings of the faceplate and the first connecting rod section, and in the release position relative to the first connecting rod section by one or several grid dimensions is longitudinally displaceable.

A drive rod fitting designed in this way offers the advantageous possibility of disengaging the coupling connection between the two drive rod sections only in a very specific switching position of the entire drive rod fitting. Thus, the second connecting rod section can only be disengaged from the first connecting rod section in this specific switching position and can be displaced longitudinally relative to it for the purpose of a necessary or expedient adjustment adjustment, before it then automatically returns under the action of the resetting spring force the first connecting rod section comes into coupling connection.

It has proven useful if the guide consists of a profile rail that is approximately U-shaped in cross-section and connected to the faceplate on the underside and if the faceplate and profile rail fit together in a standardized stepped groove (Euronut) of a sash frame made of wood or plastic profiles consists.

It is also advisable to form complementary and upright longitudinal teeth on the connecting rod sections as coupling elements and counter-coupling elements. In addition to the fact that such longitudinal gears can be produced easily and precisely, they also have the advantage that a larger number of individual teeth always come into clutch engagement with one another and thereby enable reliable power transmission.

It is further provided that the first connecting rod section in the area of its coupling elements is equipped with a U-profile that is open at the bottom, while the second connecting rod section in the area of its counter coupling elements is provided with a rectangular cross-section which fits into the U-opening, the coupling elements and counter-coupling elements being formed only on two mutually facing surfaces of the U-profile and the rectangular cross-section.

As a support bearing, a bow-shaped leaf spring can sit in the bottom of the guide, which can advantageously be fixed at one end to the guide, while its other end is freely displaceably supported on the guide.

From a structural point of view, it has also proven useful if the second connecting rod section is accommodated in the guide such that it can be tilted about an integrally formed supporting cam, which is always at a minimum distance from the mating coupling members and is preferably provided in one piece on the second connecting rod section.

Finally, a feature is also seen in the fact that with the second connecting rod section a bolt slide is in - preferably in one piece - connection which can be pushed out of one end of the guide and can be varied in terms of its effective bolt length between a minimum dimension and a maximum dimension. In this case, it is important that with the aid of the coupling elements and mating coupling elements provided between the two connecting rod sections, the effective locking length for the locking slide can be adjusted in the installed state of the connecting rod fitting in accordance with the different installation conditions.

Fig. 1

in vergrößerter Darstellung und in einem Längsschnitt entlang der Linie I - I der Fig. 2 den neuerungswesentlichen Teil eines Treibstangenbeschlages für Fenster, Türen od. dgl. mit zwei in gegenseitigem Kupplungseingriff befindlichen Treibstangen-Teilstücken,

Fig. 2

einen Längsschnitt entlang der Linie II - II in Fig. 1,

Fig. 3

einen Querschnitt entlang der Linie III - III in den Fig. 1 und 2,

Fig. 4

eine der Fig. 2 entsprechende Längsschnitt-Darstellung, bei der jedoch die beiden Treibstangen-Teilstücke des Treibstangenbeschlages in der den Fig. 1 und 2 entsprechenden Schaltstellung miteinander außer Kupplungseingriff gebracht sind,

Fig. 5

einen Querschnitt entlang der Linie V - V in Fig. 4,

Fig. 6

eine der Fig. 4 entsprechende Längsschnitt-Darstellung, bei der zusätzlich das zweite Treibstangen-Teilstück relativ zum ersten Treibstangen-Teilstück im entkuppelten Zustand längsverschoben ist und

Fig. 7

eine der Fig. 1 entsprechende Darstellung, bei der jedoch die beiden Treibstangen-Teilstücke in der der Fig. 6 entsprechenden Verschiebelage miteinander in Kupplungseingriff stehen.

The subject matter of the invention is explained in detail below using an exemplary embodiment shown in the drawing. It shows

Fig. 1

2 the enlarged part of a drive rod fitting for windows, doors or the like with two mutually engaged drive rod sections, in an enlarged representation and in a longitudinal section along the line I - I of FIG. 2,

Fig. 2

2 shows a longitudinal section along the line II-II in FIG. 1,

Fig. 3

2 shows a cross section along the line III-III in FIGS. 1 and 2,

Fig. 4

2 shows a longitudinal sectional view corresponding to FIG. 2, but in which the two connecting rod sections of the connecting rod fitting are brought together with one another out of clutch engagement in the switching position corresponding to FIGS. 1 and 2,

Fig. 5

3 shows a cross section along the line V - V in FIG. 4,

Fig. 6

4 shows a longitudinal section corresponding to FIG. 4, in which, in addition, the second connecting rod section is longitudinally displaced relative to the first connecting rod section in the uncoupled state, and

Fig. 7

a representation corresponding to FIG. 1, but in which the two connecting rod sections are in coupling engagement with one another in the displacement position corresponding to FIG. 6.

3 and 5 of the drawing, the portion of a window or door leaf 1 is shown in dash-dotted lines, which is provided on its rebate peripheral surface 2 with a standardized, step-shaped profile groove 3, which has a flat and wide outer groove step 4/5 and its has deep and narrow inner groove level 6/7 and is therefore designed as a so-called Euronut.

In this standardized, step-shaped profile groove 3, the drive rod fitting is usually installed, which comprises at least one faceplate 8 and a drive rod 9 guided behind it longitudinally.

The drive rod 9 consists of two drive rod sections 10 and 11, which are normally connected to one another by coupling elements 12 and mating coupling elements 13, for example in the form of corresponding longitudinal toothing, non-positively and positively for the purpose of common longitudinal displacement, as shown in FIGS. 1 and 2 .

According to a predetermined grid dimension of the coupling elements 12 and the mating coupling elements 13, which in the present case is determined by the tooth pitch of the two longitudinal teeth, the two connecting rod sections 10 and 11 can be gradually shifted longitudinally relative to one another in a connection that transmits longitudinal forces.

In order to make this possible, it is provided that the two connecting rod sections 10 and 11 at least in the area of their associated coupling elements 12 and Counter coupling elements 13 run over their maximum displacement in a guide 14 connected to the faceplate 8. This guide 14 advantageously consists of an underside connected to the faceplate 8 and in cross section approximately U-shaped profile rail, which is designed so that it can be inserted flush with the faceplate 8 into the step-shaped profile groove 3 of the wing 1.

The drawing makes it clear that the provided on the connecting rod sections 10 and 11 as coupling elements 12 and mating coupling elements 13 and complementary longitudinal teeth each have an upright arrangement, so normal to the plane of the faceplate 8 or parallel to the two upright legs of the extend in cross section U-shaped profiled guide 14.

3 and 5 can clearly be seen that the first connecting rod section 10 in the area of its coupling elements 12 is equipped with a downwardly open U-profile, while the second connecting rod section 11 in the area of its mating coupling elements 13 with one in the U-opening of the first drive rod section 10 is provided matching rectangular cross section. In the simplest case, the coupling elements 12 and the mating coupling elements 13 are located only on two mutually facing surfaces on the inside of the U-profile of the first connecting rod section 10 and on a rectangular cross-sectional area of the second connecting rod section 11.

While the first connecting rod section is supported in its height direction within the guide 14, namely against the underside of the faceplate 8, the second connecting rod section 11 has at least in the area of its mating coupling elements 13 only a profile height that is only a fraction of the profile height of the guide 14 corresponds. The second connecting rod section 11 is equipped with the mating coupling elements 13 over its entire profile height, as can be seen particularly in FIGS. 4 and 6 of the drawing.

The second connecting rod section 11 rests on a support bearing 15 which is seated at the bottom in the guide 14, namely arranged on the bottom thereof and is subjected to a spring force at the top and has the shape of a bow-shaped leaf spring.

The support bearing leaf spring 15 is fixed at one end via a nose 16 protruding into a bottom recess 17 of the guide 14, while its other end 18 is freely displaceably supported on the bottom of the guide 14.

The support bearing leaf spring 15 is designed and provided on the bottom of the guide 14 in such a way that it not only the section of the second connecting rod section 11 equipped with the mating coupling elements 13 or the longitudinal toothings, but also as a whole upwards against the faceplate 8 or tries to press against the part of the first connecting rod section 10 lying against it, as can be clearly seen in FIG. 2. This ensures that coupling elements 12 and mating coupling elements 13 of the two connecting rod sections 10 and 11 are normally kept in non-positive and positive engagement with one another, which ensures the reliable transmission of longitudinal thrust and tensile forces.

Thus, if necessary, the uncoupling of the connecting rod section 11 from the connecting rod section 10 and then a limited but multi-stage longitudinal displacement of the second connecting rod section 11 to the first connecting rod section 10 is possible, the coupling elements 12 and the mating coupling elements 13 must be temporarily brought out of positive engagement with one another become. Special arrangements have been made for this.

These precautions consist in that the faceplate 8 is provided with an opening 19 above the support bearing 15, which is subject to the spring force or formed by the leaf spring, to which, for example, a slot-like opening 20 in the connecting rod section 10 is connected. In a partial area that is always within the length of the opening 19, the drive rod section 11 has a notch 21 on its upper side, with which an aperture-like actuating tool is provided through the openings 19 and 20. for example, the blade of a screwdriver 22 can be brought into engagement, as shown in FIGS. 4 and 6 of the drawing. 4 and 6 it can also be seen that by means of the pin-like actuating tool, for example the screwdriver 22, the second connecting rod section 11, on the one hand, against the spring force emanating from the support bearing leaf spring 15, with its mating coupling elements 13 downward from the coupling elements 12 of the first drive rod section 10 can be disengaged. On the other hand, a comparison of FIGS. 4 and 6 also shows that in the disengaged position of its mating coupling elements 13, the second connecting rod section 11 is longitudinally displaceable relative to the first connecting rod section 10. The longitudinal displacement is also brought about by the pin-like actuating tool, for example the screwdriver 22, brought into engagement with the notch 21. The extent of the relative longitudinal displacement can be varied up to a predetermined maximum dimension, incremental adjustments being possible which correspond to the extent of a pitch of the longitudinal teeth provided as coupling elements 12 and as mating coupling elements 13.

After each longitudinal adjustment of the second drive rod section 11 with the aid of the pin-like actuating tool, for example the screwdriver 22, its mating coupling elements 13 are automatically brought into positive and positive engagement with the coupling elements 12 of the first drive rod section 10 by the support bearing leaf spring 15 .

Advantageously, the coupling members 12 are assigned a stop 23 in the form of a downwardly elongated tooth, which prevents a complete decoupling of the connecting rod section 11 from the connecting rod section 10.

In any case, it is advantageous if the connecting rod section 11 has a plurality, for example four, teeth as mating coupling elements 13, which engage in any possible coupling position with the coupling elements of the connecting rod section 10, which are also formed by teeth. It has proven to be advantageous to enclose the second connecting rod section 11 around a support cam 24 on the underside, for example molded on by an expression supported in a tilting manner on the bottom of the guide 14 and thereby to ensure that its mating coupling elements 13 are properly disengaged from the coupling elements 12 of the first connecting rod section 10. It is recommended to arrange the support cam 24 at a point on the second connecting rod section 11 which is constantly at a sufficiently large distance from the mating coupling elements 13, as can be seen in FIGS. 2, 4 and 6.

A comparison between FIGS. 1 and 7 of the drawing shows the extent to which the two connecting rod sections 10 and 11 can be longitudinally adjusted relative to one another by means of their coupling members 12 and counter-coupling members 13.

In the embodiment of a connecting rod fitting shown in the drawing, a locking slide 25 is fixedly connected to the second connecting rod section 11, namely in one piece. This can be pushed out of the one end of the guide 15 below the faceplate 8. It is important that the bolt slide 25 can be varied in steps with respect to its effective bolt length between a minimum dimension and a maximum dimension. The minimum dimension of its effective bolt length results from the setting shown in FIG. 1, while the maximum dimension of the effective bolt length can be achieved with the setting corresponding to FIG. 7. Intermediate stages of the effective bolt length can be set easily and without problems depending on the tooth pitch of the coupling elements 12 and the mating coupling elements 13.

Claims (8)

1. An actuating bar fitting for windows, doors or the like, comprising an actuating bar (9) which is displaceable behind a face plate (8), e.g. via an actuating gear, said actuating bar consisting of two component parts (10 and 11) which, for the purposes of change of length, are displaceable relatively to one another and can be interconnected operatively and positively in a number of reference positions by way of coupling elements (12) and companion coupling elements (13), the actuating bar component parts (10 and 11) being held in inter-connectable relationship in predetermined modular dimensions after the coupling elements (12) and companion coupling elements (13) kept in engagement by spring force (15) have been disengaged,
   wherein the first actuating bar component part (10) is supported in the direction of its height and is equipped with coupling elements (12) extending in the direction of its profile height,
   wherein the face plate (8) has an opening (19) as a passage for an actuating tool in the form of a pin, e.g. a screwdriver (22),
   and wherein the companion coupling elements (13) of the second actuating bar component part (11) are disengageable against the spring force (15) downwardly from the coupling elements (12) of the first actuating bar component part (10) by means of the pin-like actuating tool (22),
   characterised in that
   the two component parts (10 and 11) of the actuating bar extend, at least in the region of their directly associated coupling elements (12) and companion coupling elements (13), over their maximum displacement travel, in a guide 14) connected to the face plate (8),
   in that only one (10) of the two actuating bar component parts (10 and 11) is supported against the underside of the face plate (8),
   whereas the second actuating bar component part (11) rests beneath the opening (19) in the face plate (8) on a support bearing (15) mounted at the bottom in the guide (14) and upwardly subjected to the spring force,
   in that the first actuating bar component part (10) has an opening (20) in the form of a slot for the pin-like actuating tool (22), such opening adjoining the slot-like opening (19) in the face plate (8),
   and in that the second actuating bar component part (11) is disengageable from the coupling elements (12) of the first actuating bar component part (10), only in a quite specific actuating position of the complete actuating bar fitting, through the openings (19 and 20) of the face plate (8) and the first actuating bar component part (10) with its companion coupling elements (13), and in the disengaged position is longitudinally displaceable relatively to the first actuating bar component part (10) by one or more modular dimensions.
2. A fitting according to claim 1, characterised in that the guide (14) consists of a profiled rail of substantially U-shaped cross-section, connected to the face plate (8) at the underside, and in that the face plate (8) and the profiled rail (14) jointly fit in a stepped rebate (3) of a frame (1) of a window or door leaf, such rebate preferably being a standard rebate, e.g. a "Euro groove".
3. A fitting according to claim 1 or 2, characterised in that longitudinal toothings which match one another and are disposed on edge are formed on the actuating bar component parts (10 and 11) to act as coupling elements (12) and companion coupling elements (13).
4. A fitting according to any one of claims 1 to 3, characterised in that the first actuating bar component part (10) is provided with a downwardly open U-profile in the region of its coupling elements (12) while the second actuating bar component part (10) is provided with a rectangular cross-section fitting into the U-opening in the region of its companion coupling elements (13), the coupling elements (12) and companion coupling elements (13) being formed only in two facing surfaces of the U-profile and rectangular cross-section.
5. A fitting according to any one of claims 1 to 4, characterised in that the support bearing (15) is in the form of a bow-shaped leaf spring in the guide (14).
6. A fitting according to claim 5, characterised in that one end of the leaf spring (15) is fixed (16, 17) on the guide (14), while its other end (18) is supported against the guide (14) so as to be freely displaceable.
7. A fitting according to any one of claims 1 to 6, characterised in that the second actuating bar component part (11) is received in the guide (14) so as to be tippable about an integrally formed lug (24) and in that the lug (24) is spaced from the companion coupling elements (13).
8. A fitting according to any one of claims 1 to 7, characterised in that a sliding latch (25) is connected, preferably in one piece, to the second actuating bar component part (11) and can be slid out of one end of the guide (14), its effective latching length being variable stepwise between a minimum and a maximum.

Images