EP0683295B1 - Fitting for pivoting and tiltable windows, doors or the same - Google Patents

Abstract

The scissor unit (10) connects a window casement to a fixed frame has a control arm (18) movably mounted on the pane and a bolt member (30) movably mounted on casement and interacting with a control curve (32) on an underneath side of the control arm facing the casement. The control arm has a shank angled towards the casement at least in the area of the control curve and/or in the area of an arm length adjustment device on its front longitudinal edge relative to the first tilting direction (A). The bolt member can leave and enter the area of the control curve underneath the arm unimpeded by the angled shank. The control arm at least in the area of the control curve preferably has an L, U or C shaped cross-section perpendicular to arm length direction.

Description

The invention relates to a turn-tilt fitting for windows, Doors or the like, comprising a wing with a fixed frame connecting scissor unit with one on the wing movably mounted control arm and one movable on the wing mounted, with a control curve on a wing facing Underside of the control arm cooperating locking member, whereby to open the wing of the control arm by the locking member can be fixed in parallel on the wing, and wherein the control arm can be released from the locking element to tilt the wing is for moving the control arm in a first direction in a tilted position.

Such turn-tilt fittings are known. The opening scissor unit has at least one, often also several arms, one arm, the extension arm, the wing with the fixed frame connects what one end of the wing is movably mounted and its other end is a pivot part of the upper pivot bearing of the window, door or the like. To the possible The opening scissor unit has a limit on tipping opening angle usually another arm, the connecting link, which is articulated to the wing and the extension arm is. In order to open the sash turn the arm in parallel position to fix on the wing, this or the connecting link provided with the control curve in the corresponding Interacts with the locking element. Bolt link and control arm together with the control cam must be in a relatively limited installation space find space between sash and fixed frame. At a This installation space is made known by the turn-tilt fitting reduced that the control curve of a separate C-profile Control part on the underside of the extension arm is formed by attaching the middle leg of the C-profile shape on the extension arm. The thickness of the middle leg increases accordingly the vertical installation space requirement. To a reliable interaction of the bolt link and the control cam guarantee are therefore only small manufacturing and assembly tolerances with respect to the mutual vertical position of Bolt link and control curve permissible. Even in the area of if necessary, provided arm length adjustment device can Problems with the available installation space height (= vertical clearance).

The invention is based on the technical problem, one Tilt & Turn hardware with reduced vertical installation space requirements to provide.

To solve this problem, it is proposed that the control arm at least in the area of the control curve and / or in the area an arm length adjuster on his with respect to the in the first direction, the front longitudinal edge is angled towards the wing Has thighs.

The angled leg of the control arm leads to an essential one Increasing mechanical strength, in particular Flexural strength, the control arm in this area, so that the material thickness can be reduced accordingly. The thickness of the underside that determines the vertical height with the control curve forming itself in one the first Direction containing plane extending part of the control arm is reduced accordingly. The exit or Entry of the control element in the area of the control curve below the opening arm when opening or closing the Wing is not hindered by the angled leg, since this on the specified front longitudinal edge of the control arm is arranged. The vertical installation space requirement in the area of If necessary, provided arm length adjustment device is in the same Way reduced by the invention.

It is preferably provided that the control arm at least in the area the control curve in cross section perpendicular to the arm length direction L-shape or U-shape or C-shape. In case of U-shape or C-shape is the opposite of the angled leg Leg for the exit or entry of the locking element to cut out accordingly. To the specified cross-sectional shape the control arm or the corresponding one Section of the control arm profiled accordingly manufactured, in particular by bending sheet metal, which the essential condition for the mass-produced turn-tilt fitting the inexpensive manufacturability met. For special fittings can the control arm u. U. also from a corresponding Molded part, in particular die-cast part.

The control curve can possibly from the side edges of the control arm be formed, provided it has a C-shape in cross section. In In many cases, however, it is more favorable if the control curve from a separate control curve part on the underside of the extension arm is formed next to the angled leg. The Control part can be formed from a molded part, so that even more complicated shapes can be easily achieved. The control part on the extension arm can essentially be adjustable parallel to the first direction, so that the position of the cam relative to the locking member is optional is adjustable to reliable interaction of control curve and ensure the bolt part. If necessary, the Sash pressure during assembly or after extended use optionally correct.

You get a compact, mechanically stable design if that Control part with the free edge of the angled leg essentially flush and / or if that Control part with the side facing away from the angled leg Edge of the extension arm is essentially flush.

It is particularly preferably provided that the control part in Cross section is essentially L-shaped or U-shaped Place the free leg ends on the control arm. So it is no leg flat on the underside of the extension arm. The locking member can therefore the entire space below the Use the extension arm down to the bottom. The vertical Installation space is therefore required for the stay scissor unit accordingly low or the manufacturing and assembly tolerance for the relative position for wing member and extension arm can accordingly be chosen large. The turn-tilt fitting can thus with different window profile shapes and different vertical clearance can be used.

In order to use the structurally simple means regardless of the angular shape of the above Extension arm with adjustable usability of the To be able to implement the control part on the extension arm proposed that the control part pivotable on the extension arm attached and optionally in different swivel positions can be fixed, preferably by means of a toothing of the control cam part engaging adjusting spindle to the direction of adjustment substantially parallel to the spindle axis.

For the optional change of the effective extension arm length for Sash adjustment or sash readjustment after a long time Use an appropriate adjustment device on the extension arm intended. This can include an adjustment screw in a sheet metal holding the adjusting spindle on the underside the arm is movably mounted with the advantage compact design.

For this purpose it can be provided that the adjusting screw with a External thread section in an internal thread of a rotary bearing part of the swivel-bearing adjustment part engages and that the adjustment part on the extension arm can be moved in the longitudinal direction of the arm is stored.

In order to ensure that there is little vertical installation space required, it is proposed that the adjustment part have a guide projection has, in a guide slot of the extension arm intervenes.

Various known embodiments are used for the locking member in question. However, it is particularly preferably provided that that the locking member is formed by a mushroom head. This leads to a reliable cohesion of Locking member and cam part; evasion of the locking member down from the control curve part is excluded.

Because of the increased vertical tolerance according to the invention the orientation between the locking link and the extension arm can do that in another, simpler embodiment Bolt member also of a substantially circular cylindrical Bolts are formed. The invention further relates to a window, a door or the like. With a turn-tilt fitting of the above described type.

Fig. 1

eine Seitenansicht einer Ausstellschereneinheit samt Oberschiene in vertikaler Richtung auseinandergezogen im Schnitt nach Linie I-I in Fig. 2;

Fig. 2

eine Draufsicht auf die Anordnung in Fig. 1 mit seitlichem Versatz;

Fig. 3

einen Teilschnitt mit Anordnung in Fig. 1 nach Linie III-III;

Fig. 4-7

Schnittansichten nach der Linie IV-IV, V-V, VI-VI, VII-VII mit unterschiedlichen Riegelgliedpositionen; und

Fig. 8-10

Schnitte entsprechend den Fig. 4 und 6, jedoch mit abgeändeter Form des Riegelelements.

The invention is explained below using preferred exemplary embodiments with reference to the drawings. It shows:

Fig. 1

a side view of a folding scissor unit together with the top rail pulled apart in the vertical direction in the section along line II in Fig. 2;

Fig. 2

a plan view of the arrangement in Figure 1 with lateral offset.

Fig. 3

a partial section with arrangement in Figure 1 along line III-III;

Fig. 4-7

Sectional views along the line IV-IV, VV, VI-VI, VII-VII with different crossbar positions; and

Fig. 8-10

Cuts according to FIGS. 4 and 6, but with a modified shape of the locking element.

In the figures, part of another is not shown Turn-tilt hardware a stay scissor unit 10 including top rail 12 shown. The top rail 12 is one Espagnolette section 14 formed, of which only one Part on the pivot bearing side (right end in the figures) is shown. The other end is with a power transmission link coupled to an upper corner drive remote from the pivot bearing.

The top rail 12 also has a faceplate section 16 on, which covers the drive rod section 14 upwards and whose end, not shown in the figures, with the pivot bearing connected to a corner angle of the upper corner deflection remote from the pivot bearing is.

The stay scissor unit 10 is in the illustrated embodiment of an extension arm 18 and a connecting link 20 formed. The arm 18 is with its wing-side, in the left end on the faceplate section 16 movably mounted in the longitudinal direction of the rail. For this is the Extension arm 18 with a guide pin protruding downwards 22 provided in an elongated hole 25 of a beveled section 16a of the faceplate section 16 engages. Of the Link arm 20 is at one of its ends on a hinge pin 23 rotatable on the underside 18a of the extension arm 18 appropriate. Its other end is via a hinge pin 24 hinged to the faceplate section 16. In the 1 and 2 is to clarify the structure of the extension arm 18 from the faceplate section 16 and the connecting link 20 shown detached from the extension arm 18.

In the illustrated embodiment, the connecting link controls 20 a misuse protection 26 from one on the Drive rod pivotally mounted on a leaf spring 26a Pawl 26b with a stop projection 26c on the underside of the faceplate section 16 cooperates when the connecting link 20 from its parallel position according to FIG. 1 and 2 is turned out with the window open. Of the Driving rod section 14 can therefore not over the stop projection 26c, to the right in the figures. With the window closed, however, with the connecting link in parallel position 20 to the wing one in the connecting rod section 16 movably mounted control pin 26d from the connecting link 20 pressed down against the pawl 26a, so that this on Stop projection 26c can be moved past.

The setting of the extension arm 18 in a parallel position on the casement (i.e. parallel to the faceplate section 16) in the The turn-tilt fitting is ready to turn for opening of the wing about a vertical axis D takes place through the Interaction of a locking member 30 with locking rod a control curve 32 on the underside of the extension arm 18. Das Bolt member 30 can be the shape shown in Figs. 1-6 Have mushroom head or of a substantially circular cylindrical Bolt (locking member 30 ') according to FIGS. 8-10 be educated.

It can be seen that the locking member 30 is an elongated hole 34 of the faceplate section 16 interspersed and with the drive rod section 14 is riveted.

The locking member 30 does not necessarily have to be on a top rail 12 may be provided. It can also be part of an upper, be corner drive on the pivot bearing side. For this purpose, the on patent application filed on the same day as the present application with the title "Fitting system that can be activated automatically for windows, doors or the like. "Referred to the content Disclosure content of the present application counts. Further can this corner drive together with the one described here Folding scissor unit 10 also advantageously supported by automatic assembly machines be attached to the wing according to the German patent application also filed on the same day titled "Process for automated assembly Installation of fittings on the sash of a window a door or the like "; its content is also part of the disclosure content of the present application.

1 to 3 are the possible adjustment positions of the Bolt member 30 indicated and with a solid outline the tilt ready position KS and with interrupted Outlines below the ready to turn position DS and the locking position VS. In the locking position VS and the rotary ready position DS is the locking member 30 within an elongated hole forming the control curve 32 38 of a cam part 40 on the underside 18a of the control arm 18. The control arm 18 can therefore not from its parallel position pivot around its wing-side end (pin 22). He is fixed on the wing. In the standby position KS on the other hand, the extension arm 18 can be around its wing-side end swivel until it is one through the length of the link arm 20 and the length of the elongated hole 25 defined and in Fig. 2nd Dashed indicated tilt position 18 'takes. An arrow A symbolizes the direction of movement. This movement is therefore possible because the locking member 30 in the tilt position KS from the Elongated hole 38 is moved out and thus the extension arm 18th releases.

The extension arm 18 is supported by a bolt 22 and 23 first section 42 in the form of a flat profile sheet metal strip formed and one with this by means of two Connecting rivets 44 rigidly connected second section 46 in Form of a sheet metal strip with L-profile (Fig. 4 to 7). The sheet thickness b of the second angled section 46 lies at approximately 1/3 to 1/2 of the sheet thickness a of the first section 42. This reduction in sheet thickness is possible because of the downwardly projecting legs 46a for the required mechanical Strength, especially bending stiffness, ensures. The Leg length c of leg 46a is approximately 1/3 of the width d the extension arm 18 (i.e., the horizontal leg 46b of the L-profile shape).

The control curve part 40 is in the between the legs 46a and 46b, so that the space shown in Figs. 4 to 6 recognizable rectangular cross section results in essentially flush with the outer edges of the legs 46a and 46b. 1 and 3, the control part 40 is on graduated top with a thicker Main section 40a and a left bearing section in FIGS. 1 and 3 40b. The main section 40a lies at the bottom 18a of the extension arm 18, i.e. H. at the bottom of the thigh 46b. Its overall height therefore corresponds to the leg length c in Fig. 7. The bearing section 40b, however, has reduced thickness and lies on the undersides of the connecting rivets 44. A Rivet bolt 48, which is between the two connecting rivets 44 extends, connects the bearing portion 40b about the rivet pin axis B rotates with the extension arm 18. The bearing section 40b is rounded according to FIG. 3 with a semicircle Provided for rotation around the axis B despite the side allow adjacent leg 46a.

At the opposite end of the control curve part 40 is one Adjustment spindle 50 within a block 52 by one to the longitudinal direction L vertical axis C parallel to the leg 46b rotatably mounted. It intervenes in a suitably trained Teeth 54 at the end of the main section 40a facing it of the control part 40. By turning the spindle 50 by means of a polygonal recess 50a on the leg 46a facing away from the spindle end inserted turning tool the control curve part 40, for example in Fig. 3 clockwise pivot about axis C; a corresponding Pivot position 40 'is in Fig. 3 with a dotted outline indicated. To also in the opposite direction from the The parallel position of the control cam part 40 shown in FIG. 3 The main section is being able to pivot relative to the extension arm 40a towards the spindle 50 slightly side surfaces 56 converging towards one another.

The main section of the control curve part 40 has a central, parallel to the longitudinal direction of the control cam part 40 extending recess 60. It is shown in FIGS. 4 to 6 open at the top or covered by the leg 46b. The recess 60 results in that in FIGS. 4 to 6 recognizable cross-sectional shape (U-shape open at the top). Of the left side leg 62a of the U-shape abuts leg 46a or has this corresponding horizontal distance, depending after adjustment by adjusting spindle 50. The opposite one Side leg 62b closes more or less exactly with the edge of the leg 46b. In the middle leg 62c of the U-shape is the already mentioned slot 38 formed, which extends in the longitudinal direction of the control cam part 40 and on its left end in Fig. 3 to the bottom in Fig. 3 of the Control part 40 opens out freely. Because here too Side legs 62b completely interrupted by a recess 64 is in the standby tilt position KS des 4, the control part 40 together Extension arm 18 easily from the locking element 30 in the direction of arrow A are moved away. This movement is done as already mentioned, when opening the wing.

4 to 6 demonstrate that the locking element 30 is relative take up 18 different height positions to the extension arm can without endangering functional safety. The tolerance range corresponds to the leg height c minus the thickness e des Middle leg 62c and minus the height f of the enlarged diameter Head 30a of the mushroom-shaped locking member 30.

The latter deduction value f does not apply if in the embodiment 8 to 10, a locking member 30 'in the form of a circular cylindrical bolt is used.

To even if the locking member 30 relative to the cam part 40 is still somewhat higher, as shown in Fig. 5, at Tilting the sash makes it easy to retract the locking element 30 or 30 'in the control curve part 40, can, as indicated in FIGS. 4 and 8, the edge of the Leg 46b with a corresponding pointing chamfer 66 be provided.

Optionally change the effective length of the extension arm 18 to be able to, especially when the wing follows longer operating time is on the axis of rotation End of the extension arm, i.e. at the appropriate end of the angled section 46, an adjusting device 70 is provided. This is formed by an adjusting screw 72 in block 52 already addressed by one to the longitudinal direction L of the extension arm 18 parallel axis E rotatable, but axially is immovably mounted. For this purpose, the adjusting screw 72 inserted into a corresponding cylindrical bore of the block 52. The axial fixing takes place, for example, by means of two parallel to each other, in a circumferential groove 72a of the adjusting screw 72 engaging and inserted in block 52 Pins 74. Two further pins 76 are used for lateral guidance the adjusting screw 42.

An external thread portion 72b at the right end in FIG Adjustment screw 72 engages in a corresponding, continuous Internal thread of an adjusting part 78. The adjustment part 78 has a leg 78a projecting downward in FIG. 1. There is an approximately Z-shaped one in the plan view according to FIG. 2 Part 80 attached, which at its free end with a bearing sleeve 80a is formed as part of the upper wing pivot bearing 82. In Fig. 7, part 80 is of simplicity omitted for the sake of it.

For installation space-saving and reliable management of the Adjustment part 78 on the extension arm is the adjustment part 78 with an upwardly projecting guide projection 78b. 7 engages in a slot 84 in the leg 46b on. The slot runs in the longitudinal direction L and is dimensioned such that that the desired adjustment game for the effective length the extension arm 18 is available. For length adjustment is the adjusting screw 72 by means of a polygonal recess 72c inserted at the outer end of the adjusting screw 72 To turn the turning tool accordingly. Also will when installing the sash on the fixed frame, the control curve part 40 if necessary from its illustrated parallel position by turning the Spindle 50 pivots for reliable interaction of Control part 40 and locking member 30, in particular correct Wing pressure, ensure.

Overall, one obtains itself through simple manufacture, high mechanical stability and low installation space Scissor stay unit with locking element on the top rail or a corner drive.

Claims (18)

1. A pivot-and-tilt fitting for windows, doors or the like, comprising a scissor-action hook-out unit (10) connecting a leaf or wing with a fixed frame and having a control arm (18) mounted movably on the leaf or wing and a bolt member (30) mounted movably on the leaf or wing and interacting with a control cam (32) on the underside (18a), facing the leaf or wing, of the control arm (18), it being possible, for pivoting opening of the leaf or wing, to fix the control arm (18) to the leaf or wing in a position parallel thereto by means of the bolt member (30) and, for tilting opening of the leaf or wing, to release the control arm (18) from the bolt member (30) so that said control arm (18) may move in a first direction (A) into a tilt position (18'),
   characterised in that, on its longitudinal edge which is at the front with respect to the first direction (A), the control arm (18) comprises, at least in the area of the control cam (32) and/or in the area of an arm length adjusting device, a branch bent towards the leaf or wing.
2. A pivot-and-tilt fitting according to claim 1, characterised in that the control arm (18) is L-shaped or U-shaped or C-shaped when viewed in cross-section perpendicular to the longitudinal direction of the arm, at least in the area of the control cam (32).
3. A pivot-and-tilt fitting according to claim 1 or claim 2, characterised in that the control cam (32) comprises a separate control cam portion (40) on the underside (18a) of the control arm (18) adjacent the bent branch (46a).
4. A pivot-and-tilt fitting according to claim 3, characterised in that the control cam portion (40) closes substantially flush with the free edge of the bent branch (46a).
5. A pivot-and-tilt fitting according to claim 3 or claim 4, characterised in that the control cam portion (40) closes substantially flush with the edge of the control arm (18) remote from the bent branch (46a).
6. A pivot-and-tilt fitting according to any one of claims 3 to 5, characterised in that the control cam portion (40) has a substantially L-shaped or U-shaped cross-section, the free branch ends lying against the control arm (18).
7. A pivot-and-tilt fitting according to any one of claims 3 to 6 or the precharacterising clause of claim 1, characterised in that the control cam portion (40) or a separate control cam portion carrying the control cam (32), is constructed on the control arm (18) so as to be adjustable substantially in parallel with the first direction (A).
8. A pivot-and-tilt fitting according to claim 7, characterised in that the control cam portion (40) is fastened swivellably to the control arm (18) and may be selectively fixed in various swivel positions.
9. A pivot-and-tilt fitting according to claim 8, characterised in that the control cam portion (40) comprises teeth which engage in an adjusting spindle (50), with a spindle axis (C) substantially parallel to the first direction (A), mounted on the underside of the control arm (18) so as to be rotatable but axially immovable.
10. A pivot-and-tilt fitting according to any one of the preceding claims, characterised in that the control arm constructed as a hook-out arm (18) is constructed with an adjusting device (70) for changing the effective hook-out arm length.
11. A pivot-and-tilt fitting according to claim 10, characterised in that the adjusting device (70) comprises an adjusting screw (72), which is mounted movably in a block (52), supporting the adjusting spindle (50), on the underside (18a) of the hook-out arm (18).
12. A pivot-and-tilt fitting according to claim 11, characterised in that the adjusting screw (72) engages with an externally threaded portion (72b) in an internal thread in an adjusting portion (78) supporting a pivot bearing portion (80a) of the pivot-and-tilt fitting and in that the adjusting portion (78) is mounted on the hook-out arm (18) so as to be displaceable in the longitudinal direction (L) of the arm.
13. A pivot-and-tilt fitting according to claim 12, characterised in that the adjusting portion (78) comprises a guide projection (78b), which engages in a guide slit (84) in the hook-out arm (18).
14. A pivot-and-tilt fitting according to any one of the preceding claims, characterised in that the bolt member (30) is mushroom-headed in form.
15. A pivot-and-tilt fitting according to any one of claims 1-12, characterised in that the bolt member (30') takes the form of a substantially circular cylindrical pin.
16. A pivot-and-tilt fitting according to any one of the preceding claims, characterised in that the control arm (18) takes the form of a hook-out arm (18) connecting the leaf or wing with the fixed frame, there being provided a first portion (42) formed of a flat profile and a second portion (46) formed of an L-shaped profile in the area of the control cam (32).
17. A pivot-and-tilt fitting according to claim 16, characterised in that the material thickness (b) of the second portion (46) amounts to approximately 1/3 to 1/2 of the material thickness (a) of the first portion (42).
18. Window, door or the like comprising a pivot-and-tilt fitting according to any one of the preceding claims.

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