EP1101008B1 - Drive rod fitting with corner deflection - Google Patents

Abstract

The invention relates to a drive rod fitting comprising a corner deflection element for drive rods which are guided in a groove for receiving the fitting, which groove runs around the sash frame. The drive rods are joined together at the sash corner via a deflection member (15) which is guided in an angular guide channel (1) situated in the groove designed for receiving the fitting. An external sash corner covering element which covers the groove for receiving the fitting can be joined to the shaped sash frame and the corner deflection element can be fastened to the sides of said groove in a positive and/or non-positive fit via a fixing device. The aim of the invention is to produce a corner deflection element in a simple manner and to simplify the subsequent assembly of the drive rod fitting. It also aims for the attachment to be sufficiently strong, using the simplest possible measures, and for it to be possible to attach the fixing device to corner deflection elements which do not have an only laterally open angular space but only have a cover rail assigned to one leg of the sash. To this end the positive and/or non-positive fit is achieved by a fixing device (20) positioned at the level of the guide channel (1).

Description

The invention relates to a drive rod fitting according to the preamble of claim 1.

Corner deflections for such an espagnolette fitting are already known. DE 29 41 631 C2, for example, proposes a drive rod fitting with a corner drive whose corner drive has a guide channel for receiving and pressure-resistant guidance of deflecting members, wherein the guide passage is formed from a metal band. The deflecting members consist of one or more spring steel strips that can be coupled with drive rods.

From DE 196 46 988 A1, for example, an espagnolette has become known, which - as well as DE 32 16 177 C2 - means for fixing the corner deflection on the groove side walls. In DE 196 46 988 A1 a retaining element is provided for this purpose in the space between the cover angle and guide channel, while DE 32 16 177 C2 provides a latching connection of the cover angle and an inner, the guide channel against the groove base supporting corner angle formed in the groove side walls locking projections.

A disadvantage of the first-mentioned prior art is the lack of a fixation, as provided, for example, in the known from DE 32 16 177 C2 and DE 196 46 988 A1 Espagnolette fittings. In the latter espagnolette fittings, however, it is disadvantageous that the holding elements either expensive to be attached to the corner or need special locking projections on the groove.

From DE 41 38 741 A1 a corner drive of a drive rod fitting is known, which integrally forms the guide channel and an angular housing.

On one of the legs of the housing cams are mounted for engaging behind undercuts, which are provided in the fitting groove. For mounting the housing while the Beschlaggufnahmut is opened in sections in the immediate corner region of the wing, so that the leg can be inserted with the cam. At the orthogonal thereto extending second leg of the housing, a fixing element is provided, which can be attached by means of positive connection to the housing and engages behind the undercuts of the Beschlagaufnahmenut during assembly on the wing by means of projecting locking hooks.

The disadvantage here is that for mounting on the one hand the wing a provided with undercuts Beschlagaufnahmenut is needed, which is not given in each case in particular in the large number of candidate wing materials. On the other hand, the embodiment according to DE 41 38 741 A1 requires an expensive to manufacture housing, which is to be produced as a molded part made of plastic or metal die-casting. Ultimately, it is also necessary that for attaching the housing on the wing, the opening of the Beschlagaufnahmenut necessary for inserting the leg is attached.

The object of the invention is therefore to provide a Eckumlenkung with the simple production according to DE 29 41 631 C2 with the advantages of later assembly of the espagnolette according to DE 32 16 177 C2 or DE 196 46 988 A1 to provide. In this case, a sufficiently strong fixation should be achieved with the simplest possible measures. In addition, the fixing device should also be attachable to Eckumlenkungen that do not have a only laterally open corner space, but only one, a wing leg associated cover rail.

According to the invention this is achieved in that the positive and / or frictional engagement is effected by a fixing device arranged on the guide channel.

In such an espagnolette, the corner deflection is very reliably fixed near the deepest - formed by the guide channel - immersion point of the corner deflection, so that the corner deflection is held securely due to the greater penetration depth at this point. The fixation on the guide channel but it also allows that the guide channel as a force transformer in addition to the attachment on the cover angle receives another, immediately attacking this attachment, which prevents, for example, a lateral displacement with the resulting stiffness.

However, it is also essential that the fixation effected by this measure can also be used in corner deflections which have no cover angle, but which are connected only on one of the legs of the guide channel with a cover rail. The cover or Stulpschienen this in the components are connected via a separate corner joint, as known for example from DE 37 29 215 A1. Since the corner joint is created only with the assembly, no fixing devices can be provided in the corner. The arrangement of the fixing device to the guide channel, it is also possible to use the fixation on such Eckumlenkungen that meet no right-angled arrangement to adapt to a particular wing geometry.

A particularly simple embodiment provides that the fixing device is formed integrally with the guide channel. As a result, additional components can be omitted, which significantly simplifies the production.

A further embodiment provides that the fixing device consists of a clamping spring to be fastened to the guide channel, which is connectable via a snap-latch connection with the guide channel. In this embodiment, it is advantageous that the existing tools and devices for the production of the guide channel can initially be used.

A particularly useful form of the clamping spring is that the clamping spring has a U-shaped cross section and the U-legs are formed approximately sinusoidal.

In order to facilitate the assembly of the fixing device is provided that the clamping spring can be pushed radially from the radius center of the circular section of the guide channel.

A favorable choice of material results when the clamping spring consists of spring steel.

In a drive rod fitting with a corner deflection, in which the guide channel of a metal strip, in particular brass band, is formed, and connect to a cross-sectionally substantially flat web portion on both longitudinal sides in one piece two C-shaped, with their open side facing each other edge flanges , Which are formed by curls and engage around the deflecting member, it has proven to be advantageous that the fixing device consists of at least one partially outwardly deformed edge flange. The thus formed integrally with the guide channel fixing device can in a Operation be created directly together with the profiling of the guide channel.

Easy insertion of the fixing device is ensured if the guide channel in the region of the outwardly deformed edge flange has a U-shaped cross section, whose U-legs run anti-parallel. The U-legs can be introduced almost self-centering in the groove even with protruding ridges on the groove side walls, which is particularly in the automatic feeding of the fittings of great advantage.

In order to be able to form the area of the fitting receiving groove, which can be assigned to the two wing beams, it is finally also possible for the fixing device to be located in the transition region of the circular section to the legs integrally therewith. The fixing means can be arranged relatively easily outside the circular section, since the production is simplified here compared to the production in the radius. At the same time several fixing devices can be provided, which increases the maximum achievable fixing force.

A further alternative of the fixing device in a Eckumlenkung whose guide channel is formed from a metal strip, in particular brass band, in which connect to a cross-sectionally substantially flat web portion on both longitudinal sides in one piece two C-shaped, with their open side facing edge flanges which are formed by curls and embrace the deflecting element, is that the guide channel in its planar web portion back has a laterally open to the longitudinal edges bead, through which a fixing device forming clamping plate is inserted transversely to the guide channel. This embodiment allows, in addition to a simple production of the fixing device, a comparatively small change of the tool necessary for the production of the guide channel. The attachment of the clamping plate in the bead takes place in a additional operation. The fixing device can be realized in all conceivable embodiments of the Eckumlenkung and can optionally be adapted to specific customer wishes by variations of the clamping plate.

A particularly simple fixing device results from the fact that the clamping plate consists of a flat, leaf-spring-like strip. This shape of the sheet can be easily and inexpensively manufactured on the one hand, but can also be mounted automatically due to the shape in modern production facilities.

The insertion of the clamping plate in the laterally open bead is facilitated by the clamping plate has rounded or chamfered narrow sides. It is thereby also prevented that the clamping plate canted during insertion of the corner deflection in the fitting receiving groove.

In this embodiment, it is advantageous if the bead is arranged in the region of the circular section. The insertion of the clamping plate is simplified in this freely accessible area, especially if the assembly should take place until completion.

To attach the clamping spring is provided that the bead has a depth that is dimensioned only slightly larger than the strength of the clamping spring.

Fig. 1

zeigt in räumlicher Ansichtsdarstellung bei etwa natürlicher Größe einen auf der Deck- oder Stulpschiene befestigten Führungskanal,

Fig. 2

in größerem Maßstab einen Schnitt durch einen Führungskanal mir daran befestigter Fixiervorrichtung in einer ersten Ausführung ohne Deckwinkel,

Fig. 3

eine Eckumlenkung mit einem Deckwinkel und einer Fixiervorrichtung nach Fig. 2 in einer Seitenansicht,

Fig. 4

einen Führungskanal für eine in Fig. 5 dargestellte Fixiervorrichtung in größerem Maßstab,

Fig. 5

eine Eckumlenkung mit der zweiten Ausführung der Fixiervorrichtung nach Fig. 4,

Fig. 6

eine Eckumlenkung mit einer weiteren Ausführung der Fixiervorrichtung und

Fig. 7

ein Klemmblech in vergrößertem Maßstab für die in Fig. 6 dargestellt Fixiervorrichtung.

Further advantageous embodiments will be apparent from the figures. Show it

Fig. 1

shows in spatial view representation at approximately natural size a mounted on the cover or cuff rail guide channel,

Fig. 2

on a larger scale a section through a guide channel with fixing device attached to it in a first embodiment without cover angle,

Fig. 3

a corner drive with a cover angle and a fixing device according to FIG. 2 in a side view,

Fig. 4

a guide channel for a fixing device shown in Fig. 5 on a larger scale,

Fig. 5

a corner drive with the second embodiment of the fixing device according to Fig. 4,

Fig. 6

a corner drive with a further embodiment of the fixing device and

Fig. 7

a clamping plate in an enlarged scale for the fixing device shown in Fig. 6.

In Fig. 1 of the drawing, an angular guide channel 1 is shown, which serves to train and pressure-rigid sliding receiving a flexurally elastic deflection at Eckumlenkungen for espagnolettes. This guide channel 1 has two right angles to each other directed, straight legs 2 and 3, which are integrally connected to each other by an arcuate portion 4.

The guide channel 1 is made of a metal profile, in particular a brass profile, in which integrally connected to a substantially flat web portion 5 on both sides of two cross-sectionally C-shaped, with their open side opposing edge flanges 6 and 7 (Fig. 2) , The edge flanges 6 and 7 are each formed by so-called curls on the longitudinal edges of a flat metal strip, which is then formed by forming the arcuate portion 4 to the angular guide channel 1.

In the embodiment of FIG. 1, the guide channel 1 is fixed with its straight leg 3 on a cover or face plate 10, for example, directly by punctiform weld or solder joints 11 or by a clinching. The cover or faceplate 10 is not shown holes and this passing fasteners, e.g. Screws, connectable to the sash profile.

For proper shaping of the C-shaped edge flanges 6 and 7 forming curls, the clear height 12 of the metal profile is about twice as large as the thickness 13 of serving for the production of the guide channel 1 strip material dimensioned. As a result, however, this clear height 12 of the profile is greater than the total thickness 14 of the guide channel 1 slidably accommodated, bending elastic deflecting member 15, which is formed for example of four superimposed, thin spring steel strips.

Thus, the difference between the total thickness 14 of the deflecting member 15 and the clear height 12 of the profile cross section in the guide channel 1 can not be noticeable as excessively large slip, are in the metal profile of the guide channel 1 respectively in the two transition areas between the flat web portion 5 and the C. -shaped edge flanges 6 and 7 longitudinally extending beads 8 and 9 formed, preferably over the entire length of the metal profile continuously. These beads 8 and 9 project to the height 16 in the clear profile cross-section of the guide channel 1, so that the effective for the deflection member 15 profile cross-section 17 is correspondingly smaller than the clear height 12 of the profile cross-section. The height 16 of the clear profile cross section narrowing bead portion is suitably about half as large as the difference between the total thickness 14 of the deflecting member 15 and the clear height 12 of the profile cross-section.

The free longitudinal edges of the two edge flanges 6 and 7 are bent into the arcuate portion 4 stronger to the web portion 5, so that there is the play between the deflection member 15 and the Guide channel 1 is narrowed even further than in the region of the two legs 2 and 3.

This reproduced in Fig. 2 embodiment of the profile of the guide channel 1 extends only over the length of the arcuate portion 4, on the two straight legs 2 and 3 of the guide channel 1 extend the ends of the edge flanges 6 and 7 parallel to the web portion 5.

The fixing device 20 is arranged on the guide channel 1 and serves for the provisional fixing of the corner deflection 19 on the wing (not shown) during assembly, as described for example in DE 196 46 988 A1. The fixing device 20 according to FIG. 2 consists of a clamping spring 21 to be fastened to the guide channel 1, which can be connected to the guide channel 1 via a latching snap connection. The clamping spring 21 has the formation of the snap-snap connection a U-shaped cross-section, wherein the U-legs 22, 23 are formed approximately sinusoidal. The width of the guide channel 1 thereby exceeds that in the region of the sinusoidal curve legs 22, 23 between these minimally adjusting measures 27. This results in an undercut region 24 on the clamping spring 21, which has an inner contour approximately corresponding to the outer contour of the guide channel 1. The sinusoidal-shaped legs 22,23 engage around the edge flanges 6 and 7. The clamping spring 21 can be pushed radially from the radius center of the arcuate portion 4 of the guide channel 1, as shown in particular in FIG.

The corner drive 19 shown in Fig. 3, in contrast to that shown in Fig. 1, a cover or Stulpwinkel 28. This surrounds the corner of the wing at the abutting spars of the wing and covers the Beschlagaufnahmenut in this area.

The corner drive 19 is in addition to the guide channel 1, the deflecting member 15 and the cover angle 28 of one or more Driving rods 29 and guide pieces 30. The guide pieces 30 serve the longitudinally displaceable guide of the drive rods 29, which has a coupling shoe 31 and an overlap connection 32 for coupling with adjacent fitting parts. At the same time serve the guide pieces 30 for attachment of the guide channel 1 at the cover angle. At the corner deflection 27 while locking elements 33 may be provided. Holes for - not shown here - fixing screws are provided in the region of the guide pieces 30. The corner drive 19 is finally connected via these mounting screws with the casement profile.

The clamping spring 21 is arranged in the region of the arcuate portion 4 of the guide channel 1 and projects, due to its height 35 (FIG. 2) of the legs 22, 23, into the laterally open region 36 between the guide channel 1 and the cover angle 28. The width 37 of the mounted on the guide channel 1 clamping spring 21 does not exceed the minimum dimension of Beschlagaufnahmenut. By assigning the web 38 of the clamping spring 21 on the bottom side facing the groove bottom of the guide channel 1 is achieved that the clamping spring 21 is still securely attached to the guide channel 1 when the Beschlagaufnahmenut is completely or partially closely formed. The guide channel 1 is centered when inserted into the fitting receiving groove by the clamping spring 21 in the fitting receiving groove, since the legs 22,23 convey this with respect to the groove side walls. The clamping spring 21 is made of spring steel, so that in addition to the favorable strength properties and the elastic deformability is given.

The drive rod fitting with the Eckumlenkung of Fig. 4 and 5 shows another embodiment of the fixing device 20. The guide channel 1 is also integrally formed from a metal strip, in addition to the two longitudinal sides integrally adjoining C-shaped edge flanges 6,7 but provided that partially outwardly deformed edge flanges 40,41 form the fixing device 20.

As shown in Fig. 4 in an enlarged view, the partially interrupted edge flanges 6.7 in this area are not completely rolled inward but - relative to the other width 42 of the guide channel 1 - bulging slightly outward. As a result, the guide channel 1 in the region of the outwardly deformed edge flange 40, 41 has a trapezoidal U-shaped cross-section, since the U-legs 43, 44 run in antiparallel fashion.

If the U-legs 43,44 are formed longitudinally separated from the edge flanges 6,7, this results in better spring properties, since the legs 43,44 are freely movable. Of course, the edge flanges 6,7 remain to form the sections but also uninterrupted. This results in not shown, inwardly projecting beads on the edge flanges 6,7 wherein the guide of the deflecting member 15 is interrupted at least partially.

As can be seen in particular from FIG. 5, the fixing device 20 is located in the transition region of the arcuate section 4 to the limbs 2,3 thereof integrally therewith. The fixation is therefore not in the transition region of Beschlagaufnahmenuten but in each groove individually.

6 shows a corner drive 19 according to FIGS. 3 and 5, in which the guide channel 1 is likewise formed from a metal strip. The guide channel 1 has in its flat web part 5 (FIG. 2) on the rear side a laterally open bead 50, through which a fixing device 20 forming clamping plate 51 can be inserted transversely to the guide channel 1. The width of the bead 50 is matched to the lying between the beads 8 and 9 section. The bead 50 may be provided in the production of the guide channel 1 in the punch bending tool or be introduced later. The bead 50 is dimensioned so that the clamping plate 51 is inserted with its narrow side 53 However, the depth of the bead 50 is dimensioned only slightly larger than the thickness of the clamping plate 51. Since the bead 50 is closed in its longitudinal extent, the clamping plate 51 can be fixed by a slight deflection of the bead bottom 52. An escape of the clamping plate 51 is not possible by the U-shaped embrace of the clamping plate 51.

The clamping plate 51 consists of a flat, leaf-spring-like elongated strip, as shown in FIG. 7. The narrow sides 53 are rounded or chamfered, which facilitates the insertion of the clamping spring 51 in the lateral openings of the bead 50, but also prevents tilting or entanglement of the clamping spring 51 during insertion or possibly necessary longitudinal displacement of the corner on the wing.

Preferably, the bead 50 and thus the fixing device 20 is arranged in the region of the circular portion 4, since the clamping spring 51 otherwise can not dive sufficiently deep into the Beschlagaufnahmenut.

For the sake of completeness it should be noted that the guide channel 1 can of course also be made as a molded part, for example made of plastic. The said fixing devices 20 can also be provided integrally on a guide channel produced in this way, preferably in one piece.

LIST OF REFERENCE NUMBERS

1

Guide channel 1

2

leg

3

leg

4

arcuate section

5

web member

6

edge flanges

7

edge flanges

10

Cover or faceplate

11

Welding or soldering points

12

clear height

14

total thickness

15

flexurally elastic deflecting element

16

Height of the beads

17

Profile cross section

20

fixing

21

clamping spring

22

U-leg

23

U-leg

24

undercut area

27

measure

28

Cover or cuff angle

29

driving rod

30

guide pieces

31

clutch shoes

32

lap joint

33

locking elements

35

height

36

Area

37

width

38

web

40

edge flanges

41

edge flanges

42

width

43

U-leg

44

U-leg

50

Beading

51

clamping plate

52

Sick soil

53

narrow sides

Claims (14)

1. Espagnolette fitting with a corner deflection means (19) for espagnolette rods which are guided in a fitting location groove running around the sash frame, the espagnolette rods being coupled together at the sash corner via a deflection member (15) consisting of spring strips, the deflection member being guided in an angular guide channel (1) arranged in the fitting location groove, wherein at least one outer cover angle (28) or cover rail (10) covering the fitting location groove can be connected to the sash frame profile, wherein the guide channel (1) is fastened to the cover angle (28) or the cover rail (10), and wherein the corner deflection means (19) can be fixed with a positive and/or non-positive fit to the side walls of the fitting location groove via a fixing device (20), characterized in that the positive and/or non-positive fit is achieved by means of a fixing device (20) arranged on the guide channel (1).
2. Espagnolette fitting with a corner deflection means according to Claim 1, characterized in that the fixing device (20) is formed in one part with the guide channel (1).
3. Espagnolette fitting with a corner deflection means according to Claim 1, characterized in that the fixing device (20) comprises a clamping spring (21) which is to be fastened to the guide channel (1) and which can be connected to the guide channel (1) via a latching/snap-fastening connection.
4. Espagnolette fitting with a corner deflection means according to Claim 3, characterized in that the clamping spring (21) has a U-shaped cross section and the U-legs (22, 23) are formed in the approximate shape of a sinusoidal curve.
5. Espagnolette fitting with a corner deflection means according to Claim 3 or 4, characterized in that the clamping spring (21) can be pushed on from the radius centre point of the curved section (4) of the guide channel (1).
6. Espagnolette fitting with a corner deflection means according to one of Claims 3 to 5, characterized in that the clamping spring (21) is produced from spring steel.
7. Espagnolette fitting with a corner deflection means according to Claim 1, the guide channel (1) being formed from a metal strip, in particular a brass strip, in which a cross-sectionally substantially planar web part (5) is adjoined at both longitudinal sides by two C-shaped edge flanges (6, 7) which are in one piece with the web part and which have their open sides directed towards one another, these edge flanges being formed by rolled-in portions and engaging around the deflection member (15), characterized in that the fixing device (20) comprises at least one partially outwardly deformed edge flange (6, 7).
8. Espagnolette fitting with a corner deflection means according to Claim 7, characterized in that the guide channel (1) has, in the region of the outwardly deformed edge flange (6, 7), a U-shaped cross section whose U-legs (43, 44) extend antiparallel.
9. Espagnolette fitting with a corner deflection means according to Claim 7 or 8, characterized in that the fixing device (20) is situated in the transition region from the curved section (4) to the straight legs (2, 3) which adjoin the latter in one piece.
10. Espagnolette fitting with a corner deflection means according to Claim 1, the guide channel (1) being formed from a metal strip, in particular a brass strip, in which a cross-sectionally substantially planar web part (5) is adjoined at both longitudinal sides by two C-shaped edge flanges (6, 7) which are in one piece with the web part and which have their open sides directed towards one another, these edge flanges being formed by rolled-in portions and engaging around the deflection member (15), characterized in that the guide channel (1) has, on the rear side of its planar web part (5), a bead (50) which is open laterally towards the longitudinal edges and through which a clamping plate (51) forming the fixing device (20) can be inserted transversely with respect to the guide channel (1).
11. Espagnolette fitting with a corner deflection means according to Claim 10, characterized in that the clamping plate (51) consists of a planar, leaf spring-type strip.
12. Espagnolette fitting with a corner deflection means according to Claim 10 or 11, characterized in that the clamping plate (51) has rounded or bevelled narrow sides (53).
13. Espagnolette fitting with a corner deflection means according to one of Claims 10 to 12, characterized in that the bead (50) is arranged in the region of the curved section (4).
14. Espagnolette fitting with a corner deflection means according to one of Claims 10 to 13, characterized in that the bead (50) has a depth which is dimensioned to be only slightly greater than the thickness of the clamping plate (51).

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