EP0590258B1 - Hinge fitting for windows, doors or the like - Google Patents

Abstract

A hinge fitting 1 for windows, doors or the like, which is used especially with a setting-out device for turn-and-tilt wings, is described. It consists of a hinge arm 7 which engages on the wing and which is connected to the first leg 9 of an intermediate piece 8, the second leg 10 of which is connected to the tab 6 of a sleeve part 4 so as, for the purpose of selective right-hand and left-hand fastening, to be pivotable through 180 DEG about an axis 11 directed essentially parallel to the longitudinal direction of the hinge arm 7. The sleeve part 4 is held by the joint pin 3 of a bearing block 2 which is mounted on the room-side end face of the fixed frame. The second leg 10 of the intermediate piece 8 is provided, near the region of transition in the first leg 9, along the longitudinal centre with a cutout or perforation, into which can be engaged a nose 15 set off along the longitudinal centre at the rear end of the hinge arm 7. The tab 6 of the sleeve part 4 can, in either of its two possible 180 DEG end pivoting positions, be fixed relative to the second leg 10 of the intermediate piece 8 by snap-catch devices, in each of which a catch projection engages into a catch recess. There is provided as a catch projection, on or in the vicinity of each transverse edge of the sleeve-part tab 6, a catch tooth projecting out of the plane of the latter towards the second leg 10 of the intermediate piece 8, whilst the cutout or perforation of the second leg of the intermediate piece is used as a catch recess. One catch tooth can be engaged in each case in the cutout or perforation and has a blocking flank which engages behind a longitudinal edge of the cutout or perforation and which blocks the reverse rotation of the sleeve-part tab 6 relative to the intermediate piece 8. <IMAGE>

Description

Hinge fitting for windows, doors or the like, in particular on the opening device for tilt-and-turn sashes, consisting of a hinge arm which engages the wing and is connected to a first leg of an intermediate piece, the second leg of which runs at right angles to the first leg with the tab of a sleeve part for the optional right and left stop can be pivoted through 180 ° about an axis directed essentially parallel to the longitudinal direction of the first leg, the sleeve part being held pivotably by a hinge pin of a bearing block which can be attached to the end face of the fixed frame on the room side, whereby the second leg of the intermediate piece near the transition region into the first leg is provided with a cutout or opening in the longitudinal center, the hinge arm being provided at its rear end with a longitudinally arranged, offset nose and with this in the cutout or Breakthrough is indented in the second leg of the intermediate piece,
and wherein the tab of the sleeve part can be fixed in each of its two possible 180 ° end swivel positions relative to the second leg of the intermediate piece by snap-locking devices, in each of which a locking projection engages in a locking recess.

Such a hinge fitting is known from DE-PS 37 02 957. This is characterized essentially by the fact that it is used in one and the same basic concept for windows and doors with rotating, tilting and folding sashes as well as for those with rotating and tilting sashes can be brought, because the hinge arm and intermediate piece can be assembled and disassembled quickly and reliably using simple plug-in connections. Consequently, the intermediate piece can either be brought into operative connection with a hinge arm, which forms the extension arm on an opening device for tilt-and-turn sash, or it is connected to a hinge arm, which is set up for rigid attachment to a rotary sash, tilting sash or folding sash.

Another advantage of the known hinge fitting is that it can be accommodated as far as possible between the rebate surfaces with relatively little installation space in the corner zones of the sash and frame.

One and the same hinge fitting is designed for the right and left hinges. For this purpose, the tab of the sleeve part is pivotally articulated to the second leg of the intermediate piece via an axis directed essentially parallel to the longitudinal direction of the first leg of the intermediate piece. In addition, the hinge fitting is equipped with snap locking devices, by means of which two 180 ° end pivoting positions of the sleeve part flap can be automatically fixed relative to the intermediate piece.

In the hinge fitting according to DE-PS 37 02 957, the snap-locking devices are formed in that incisions or notches on the transverse edges of the sleeve part flap come into active connection with the nose arranged at the rear end of the hinge arm, in such a way that over the transverse edges of the sleeve part flap an elastic bracing of the hinge arm against the first leg of the intermediate piece is effected and then the nose at the rear end of the hinge arm resiliently springs back into the adjacent cut or the notching of the transverse edge of the flap.

Practical experience has shown, however, that by the interaction of three different functional parts to form the snap-locking devices optimal functioning cannot always be guaranteed. Even relatively small manufacturing tolerances on the three interacting functional parts can cause the snap-locking devices to function either too stiff or too smoothly.

The invention is therefore based on the object to further develop a hinge fitting of the type specified in the introduction, while maintaining its advantages, so that the snap locking devices securing the setting to the right or left stop appear even more reliable than before with a structurally simplified design.

• daß als Rastvorsprung an oder in der Nähe jeder Querkante des Hülsenteils-Lappens ein aus dessen Ebene gegen den zweiten Schenkel des Zwischenstücks hin vorspringender Rastzahn vorgesehen ist,
• daß als Rastvertiefung der Ausschnitt oder Durchbruch im zweiten Schenkel des Zwischenstücks genutzt ist,
• daß je ein Rastzahn in den Durchbruch oder Ausschnitt einrückbar ist, und daß dabei jeder Rastzahn eine einen Längsrand des Durchbruchs oder Ausschnitts hintergreifende und die Rückdrehung des Hülsenteil-Lappens gegenüber dem Zwischenstück blockierende Sperrflanke aufweist.

This object can be achieved according to the invention - according to the characterizing features of claim 1 -

• that a locking tooth projecting from its plane towards the second leg of the intermediate piece is provided as a locking projection on or in the vicinity of each transverse edge of the sleeve part flap,
• that the cutout or opening in the second leg of the intermediate piece is used as a recess,
• that one locking tooth can be inserted into the opening or cutout, and that each locking tooth has a locking edge engaging behind a longitudinal edge of the opening or cutout and blocking the reverse rotation of the sleeve part flap relative to the intermediate piece.

It is advantageous in this embodiment that the nose at the rear end of the hinge arm is no longer required to form the snap-locking devices, so the actual snap-locking effect occurs directly between the sleeve part tab and the intermediate piece.

According to an advantageous development feature of the invention, each locking tooth is molded out of the sleeve part flap using the same material.

However, it has also proven useful for the locking flank of the or each locking tooth to have a flat incline or a wedge-shaped rise Upstream flank, because this makes it much easier to engage the snap-in locking devices.

If the length of the run-up flank of the locking tooth approximately corresponds to the width of the cutout or opening in the second leg of the intermediate piece, the engagement of the snap-in and locking device can be brought about with relatively little effort before the locking flank blocks the reverse rotation from the end pivot position.

Advantageously, it is also provided that a material protrudes from the transverse edges of the sleeve part lobe, which material forms a support stop for the nose, which is protruding longitudinally on the hinge arm, in the fully assembled position. Since the flank of this support stop faces the locking flank of the latching projection, with the interposition of the nose projecting at the rear end of the hinge arm, an almost play-free fixing of the intermediate piece against the sleeve part tab is brought about as soon as the respective snap-in latching device has reached its engagement position.

Fig. 1

teils in Seitenansicht und teils im Schnitt einen für Rechtsanschlag eingestellten Scharnierbeschlag,

Fig. 2

den Scharnierbeschlag nach Fig. 1 in der Draufsicht,

Fig. 3

in größerem Maßstab und in der Draufsicht einen Hülsenteil und ein Zwischenstück des Scharnierbeschlags nach Fig. 2,

Fig. 4

ebenfalls in vergrößertem Maßstab und in Rückansicht entsprechend der Pfeilrichtung IV der Fig. 3 Hülsenteil und Zwischenstück des Scharnierbeschlages in einer Montage-Zwischenstellung und

Fig. 5

in räumlicher Darstellung das Hülsenteil des Scharnierbeschlages nach den Fig. 1 bis 3.

The subject matter of the invention is explained in detail below with reference to the drawing. It shows.

Fig. 1

partly in side view and partly in section, a hinge fitting set for right-hinged,

Fig. 2

1 in top view,

Fig. 3

on a larger scale and in plan view, a sleeve part and an intermediate piece of the hinge fitting according to FIG. 2,

Fig. 4

also on an enlarged scale and in rear view according to the direction of arrow IV of FIG. 3 sleeve part and intermediate piece of the hinge fitting in an intermediate assembly position and

Fig. 5

in a spatial representation the sleeve part of the hinge fitting according to FIGS. 1 to 3.

In Fig. 1 of the drawing, a hinge fitting 1 for windows, doors or the like can be seen, which consists of a bearing block 2 attached to the face-side end face of a frame (not shown) and a sleeve part 4 held therein pivotably via a hinge pin 3. The short leg 5a of an angle plate 5 protrudes approximately tangentially from the sleeve part 4, the long leg 5b of which extends approximately parallel to the main plane of the sash and the fixed frame when the window is in the closed position.

In one piece with the leg 5b of the angle plate 5 there is in turn a tab 6, which is directed at right angles or transversely to the plane of the long leg 5b.

The hinge fitting 1 also includes a hinge arm 7 and an intermediate piece 8, the latter being used as a connecting link between the hinge arm 7 and the tab 6 of the sleeve part 4 protruding from the angle plate 5.

The intermediate piece 8 has a first leg 9 assigned to the hinge arm 7 and also has a second leg 10 which is assigned to the tab 6 of the sleeve part 4.

Both legs 9 and 10 of the intermediate piece 8 are connected to one another in one piece, the second leg 10 lying essentially flat against the back of the flap 6. It is held in an articulated connection with the tab 6 of the sleeve part 4 via an axis 11, which can be formed, for example, by a rivet, in such a way that it pivots parallel to its plane and also parallel to the plane of the tab 6 over an angular range of 180 ° leaves. In each of its two possible end positions, the leg 10 of the intermediate piece 8 at least almost lies down with one of its longitudinal edges against the long leg 5b of the angle plate 5, as can be seen in FIGS. 2 and 3.

The intermediate piece 8 has a cutout or opening 12 in its first leg 9 near the transition region into the second leg 10. In addition, the free end of the first leg 9 is also provided with a tongue 13, which is arranged in the middle and laterally offset.

The second leg 10 of the intermediate piece 8 is also provided with a cutout or opening 14, which has a smaller width than the cutout or opening 12, and which is guided in the longitudinal direction through the web section, and into the end of the cutout or opening facing it 12 expires.

The tongue 13 adjoins the first leg 9 of the intermediate piece 8 via a downward bend in such a way that it comes to lie only at its free end approximately at the same level as the underside of the first leg 9 (FIG. 1) .

The hinge arm 7 is provided at its rear end with a longitudinally arranged, laterally offset nose 15, which has such a width that it can be inserted into the cutout or opening 14 on the second leg 10 of the intermediate piece 8, as shown in FIGS. 1, 2 and 4 can be seen. In addition, the hinge arm 7 has a crank 16 directed essentially transversely to its plane, which is designed such that the top of its end section 18 carrying the nose 15 comes to lie at least on the same level as the underside of its remaining length section, but preferably somewhat deeper than this is arranged.

In the area of its offset 16, the hinge arm 7 is provided with a cutout or opening 17 lying in the center, in such a way that it is located both in the hinge arm 7 and in its End portion 18 carrying nose 15 extends, its width being matched to the width of the tongue 13 of the intermediate piece 8. The tongue 13 of the intermediate piece 8 can be brought into longitudinally sliding guiding and holding engagement with the cutout or opening 17 of the hinge arm 7.

In the area between its cutout or opening 17 and the nose 15, that is to say on the end section 18, the hinge arm 7 carries a shoulder 19 which rises from its plane in the direction of the offset 16 and which has a width which corresponds to the width of the cutout or opening 12 is matched in the first leg 9 of the intermediate piece 8. In the extension 19 there is a threaded hole 20 parallel to the longitudinal direction of the hinge arm 7, in which in turn a screw member 21 is rotatably and axially displaceably held. At its rear end, this has a thickened head part 22, in the free end surface of which there is a tool engagement 23, for example in the form of a polygonal recess. The length dimension of the screw member 21 is matched to the length of the cutout or opening 12 in the first leg 9 of the intermediate piece 8 so that it can be inserted into it with only a little longitudinal play, as is indicated in FIG. 3 of the drawing by dash-dotted lines . In the engagement position indicated by dash-dotted lines, the screw member 21 comes after the tongue 13 of the intermediate piece 8 has been inserted into the cutout or opening 17 on the hinge arm 7 and the shoulder 19 enters the cutout or opening 12 from the inside of the leg 9. The front end of the screw member 21 comes into operative connection with a transverse edge 24 of the cutout or opening 12, while the end face of the thickened head part 22 reaches the region of opposite transverse edges 25. The tool engagement 23 of the thickened head part 22 remains accessible through that area of the cutout or opening 14 which is guided from the leg 10 to the transverse edges 25 of the cutout or opening 12. The nose 15 on the end section 18 of the hinge arm 7 engages in the cutout or opening 14 on one level, which lies below the screw member 21 or its head part 22, as can be clearly seen in FIG. 2.

By rotating the screw member 21 in the threaded hole 20 of the projection 19, it performs an axial displacement relative to this. Since it is caught between the transverse edges 24 and 25, a longitudinal displacement of the projection 19, determined by the thread pitch, takes place within the cutout or opening 12 and thus a corresponding longitudinal displacement of the hinge arm 7 on the intermediate piece 8. This longitudinal displacement is useful for regulating the installation position of the wing relative to the fixed frame, with the aid of a socket wrench that can be inserted into the tool engagement 23.

It is important that the tongue 13 of the intermediate piece 8 engages under the hinge arm 7 through the cutout or opening 17 of the crank 16 in such a way that it only rests against this with its front end, while it remains a distance from the underside of the hinge arm everywhere over its remaining length range 7 complies. On the other hand, the leg 9 of the intermediate piece 8 only comes into contact at the location of the transverse edges 26 on the upper side at the end section 18 of the hinge arm 7, beyond which the stepped tongue 13 protrudes at the front end of the leg 9.

The lug 6 protruding at right angles from the long leg 5b of the angle plate 5 of the sleeve part 4 is provided on or near each of its two transverse edges 27 with a latching projection which projects as a latching tooth 28 projecting from the lobe plane and directed against the second leg 10 of the intermediate piece 8 is designed. This locking projection or locking tooth 28 can directly adjoin the transverse edge 27 of the tab 6, as is shown in FIGS. 4 and 5 by solid lines. However, it can also be at a greater distance from these transverse edges 27, as indicated by the dash-dotted lines in FIG. 4. In any case, however, it is important that the locking projection or locking tooth 28 is equipped with a steep locking flank 29 which adjoins a rising flank 30 which is inclined flat or wedge-shaped in relation to the plane of the flap 6.

It has proven to be useful if each locking projection or locking tooth 28 is formed from the flap 6 of the sleeve part 4 using the same material, because this gives it a relatively high spring stiffness.

At right angles to each transverse edge 27, a shoulder 31 is formed on the tab 6, which in turn is joined at right angles by a straight edge section 32 which merges into an arc 33 whose center coincides at least approximately with the axis 11.

By pivoting the sleeve part 4 about the axis 11 relative to the intermediate piece 8 either in the direction of arrow 34a - from right to left - or in the direction of arrow 34b - from left to right - always first the curve 33 and then the straight edge section 32 comes under the nose 15 protruding rearward from hinge arm 7 or its end section 18, thus placing it under a pretension in the direction toward first leg 9 of intermediate piece 8. Thus, the hinge arm 7 is pressed on the one hand with its end section 18 from below against the transverse edges 26 of the leg 9, while on the other hand it rests on the front upper end edge of the tongue 13 before its cranking 16. This results in a play-free spring tension between the hinge arm 7 and the intermediate piece 8. After the straight edge section 32 of the tab 6 has come under the nose 15 of the hinge arm 7, the shoulder 31 of the transverse edge 27 abuts laterally against this nose 15 and thereby limits the pivoting path of the sleeve part 4 relative to the intermediate piece 8.

During the pivoting movement of the sleeve part 4 about the axis 11 relative to the intermediate piece 8, one of the locking teeth 28 with its ramp flank 30 runs onto the inner surface of the leg 10 of the intermediate piece 8 and thereby deforms the tab 6 resiliently in the direction away from the leg 10 of the intermediate piece 8 . As soon as the relevant locking tooth 28 reaches the area of the cutout or opening 14 and the adjacent shoulder 31 meets the side surface of the nose 15, snaps its locking flank 29 behind the longitudinal edge 14a or 14b of the cutout or opening 14 and thereby automatically blocks the return rotation of the sleeve part 4 with respect to the intermediate piece 8 against the direction of the arrow 34a or 34b.

It has proven useful if the length of the ramp flank 30 of each latching projection or latching tooth 28 approximately corresponds to the width of the cutout or opening 14 in the second leg 10 of the intermediate piece 8, as shown in FIG. 3, so that the respectively effective latching projection or Locking tooth 28 can be received completely within the cutout or opening 14.

Claims (6)

1. A hinge device (1) for windows or doors or the like, more particularly on the stay mechanism for turntilt sashes, the device comprising a hinge arm (7) which is connected to the sash and is connected to the first limb (9) of an intermediate member (8) whose second limb (10) extends perpendicularly to its first limb (9) and is so connected to the plate (6) of a knuckle (4) for right and left hanging at choice as to be pivotable around a pivot (11) extending substantially parallel to the length of the first limb (9), the knuckle (4) being pivotally maintained by a hinge pin (13) of a mounting (2) adapted to be fitted to the room-side end face of the fixed frame,

   the second limb (10) of the intermediate member (8) being formed centrally of its length near the transition zone to the first limb (10) with a recess or aperture (12),

   the hinge arm (7) having at its rear end a shouldered catch (15) disposed centrally of its length and being engaged by way of such catch in the recess or aperture (14) in the second limb (10) of the intermediate member (8),

   the knuckle plate (6) being adapted to be secured in each of its two possible 180°-apart end pivoted positions relatively to the second limb of the intermediate member (8) by snap catch devices in which a catch projection (28) engages in a catch recess (14, 14a, 14b),
   characterised in that

   as catch projection there is provided at or near each transverse edge (27) of the knuckle plate (6) a catch tooth (28) which projects from the plane of the plate (6) towards the second limb (10) of the intermediate member (8);

   the recess or aperture (14) in the second limb (10) of the intermediate member (8) is used as catch recess;

   one catch toothing (28) each is engageable in the recess or aperture (14), and

   each catch tooth (28) has a locking flank (29) which engages behind a longitudinal edge (14a) or (14b) of the recess or aperture (14) and prevents the knuckle plate (6) from turning back relatively to the intermediate member (8).
2. A hinge device according to claim 1,
   characterised in that
      each catch tooth (28) is devised unitarily from the knuckle plate (6).
3. A hinge device according to claim 1 or 2,
   characterised in that
      the locking flank (29) of the or each catch tooth (28) is preceded by an abutment flank (30) which rises at a reduced inclination or wedge-fashion.
4. A hinge device according to any of claims 1 to 3,
   characterised in that
      the length of the abutment flank (13) of the catch tooth (28) corresponds substantially to the width of the recess or aperture (14) in the second limb (10) of the intermediate member (8).
5. A hinge device according to any of claims 1 to 4,
   characterised in that
      a shoulder (31) projects from the transverse edges (27) of the knuckle plate (6) and forms a support abutment for the catch (15), which projects from the hinge arm (7) centrally of its length, in the finally assembled position or end pivoted position of the intermediate member (8).
6. A hinge device according to any of claims 1 to 5,
   characterised in that
      the contour of the transverse edges (27) of the knuckle plate (6) describes an arc (33) which merges near the catch teeth (28) into a straight line (32) and whose distance from the pivot (11) of the plate (6) and intermediate member (8) is such that when the plate (6) is in its final assembly position or final pivoted position the bottom surface of the projection (15) engages positively on the straight line (13) so that a support connection of the intermediate member (8) and hinge arm (7) is braced resiliently.

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