DE29510215U1 - Tape for doors, windows and the like - Google Patents

Abstract

One hinge plate part (10) is fixed to the fixed frame, and the other hinge plate part (20), partly over it, is fixed to the window casement or door leaf part. The superimposed parts (2, 12) have cavities (3, 13) for the hinge plate journals determining the hinge axis and containing a journal (5). Clamps clamping the journal at right angles to its axis on the casement's or leaf's plane against the inner periphery of the cavity comprise a wedge (18) exerting force parallel to the journal's axial direction. The wedge is screwed (19) into an axially parallel groove (8) in the journal's peripheral surface, and has a radially outward pointing determinating surface (23). The opposite wedge surface (22) co-operates with the wedge groove's base surface (9) sloping in relation to the axis of the journal.

Description

Tape for doors, windows and the like

The invention relates to a tape of the type corresponding to the preamble of claim 1.

Such hinges are generally known. They are considered as two-part hinges, in which a hinge part attached to the sash grips over a hinge part attached to the fixed frame and rests on it. However, the invention is also relevant for so-called three-part or hinged hinges, in which the hinge part attached to the sash grips between two hinge parts attached to the fixed frame and arranged one above the other.

In many cases, in the case of the generic hinges, a hinge pin bushing is provided in at least one of the hinge parts, which forms a guide for the hinge pin and can also be designed eccentrically for the purpose of adjusting the sash relative to the frame. The hinge pin bushing forms the sliding bearing for the hinge pin in the bearing hinge. Although the invention is not limited in principle to the presence of a hinge pin bushing, a hinge with a hinge pin bushing is the preferred embodiment.

The hinge pin bushings in which the hinge pin rotates are made of a low-friction plastic and improve the smooth running of the hinge. In many cases they have

D-40239 DÜSSELDORF · MULVANYSTRASSE 2 · TELEPHONE 49 / 211 / 96 145 - 0 ■ FAX 49 /211/96 145 - 20

end a radial collar, via which the vertical load is transferred from the sash hinge part to the hinge part arranged on the fixed frame.

The hinge pin bushing can be a single bushing, but can also consist of several bushings fitted together, in particular as a so-called double eccentric bushing, such as in DE 34 12 830 C2 and DE 34 12 832 C2. The individual bushings of the double eccentric bushing can be adjusted relative to one another in order to be able to adjust the sash relative to the frame.

The parts of the hinges are subject to tolerances during production, which can only be reduced below a certain level with unreasonable effort. The hinge parts are mostly made of extruded aluminum profiles, in which the hinge pin recess is also pressed and not subsequently machined. The tolerances during extrusion are known to not be particularly tight. This also applies to the hinge pin bushings made of plastic parts and finally also to the hinge pin itself.

In unfavourable cases, the existing tolerances can all have an effect in one direction, which means that a noticeable play can be felt on the hinge in question. Due to the projection of the sash, this play can lead to inaccuracies in the position on the locking side, which can cause problems when the seals engage and in particular the locking device.

The invention is based on the object of preventing such problems.

This object is solved by the invention set out in claim 1.

The means for clamping the hinge pin eliminates its radial play in the hinge pin recess of the relevant hinge part, so that the wing is secured in its position within its plane and play, along with the associated positional inaccuracy, is eliminated.

the closing side can no longer be felt.

It does not matter which part of the hinge the means are used on. It can be the sash hinge part or the hinge part attached to the fixed frame, but only one hinge part per hinge, since the swivel mobility of the hinge parts must be maintained.

In a first embodiment under consideration, the means for clamping the hinge pin can comprise a wedge, the actuating force of which acts parallel to the axial direction of the hinge pin (claim 2).

This can be achieved according to claim 3 by a wedge which interacts with the bottom surface of a keyway provided in the hinge pin, said bottom surface being inclined to the axis of the hinge pin.

If the wedge is displaced in the axial direction, it rests radially outwards on the hinge part and pushes the hinge pin to the side, eliminating the play.

The axial displacement can be accomplished by a screw in the manner set out in claim 4.

In another embodiment, the wedge faces inwards into a threaded bore of the hinge pin and is pressed radially outwards there by a pointed threaded screw (claim 5).

In this case, it is recommended to design the wedge in the shape of a semi-cylindrical disk (Woodruff wedge), which allows the keyway to be easily created using a disk milling cutter (claim 6).

The wedge can also be formed by a countersunk screw (claim 7) which is screwed into a threaded hole at the end of the hinge pin and interacts with the edge of the latter to press it apart radially and in this way to bring about the clamping at the hinge pin recess.

To create a sufficiently large investment area

the edge of the threaded hole can have a countersink (claim 8) with which the conical underside of the countersunk head of the threaded screw interacts.

In order to weaken the upper end of the hinge pin, it may be advisable, according to claim 9, to provide a circumferential groove axially on the inside of the effective area of the countersunk head, so that the radial clamping force of the countersunk head can concentrate on a relatively narrow area at the upper end of the hinge pin.

Longitudinal slits according to claim 10 serve the same purpose.

In a further embodiment, the means for clamping can comprise an eccentric mounted on the hinge pin (claim 11), which can be pivoted about an eccentric axis parallel to the axis of the hinge pin (claim 12), or a pressure piece can be provided which is radially displaceable in the hinge pin and can be acted upon by a rotatable eccentric (claim 13).

In principle, the means for clamping according to claim 14 can act against the inner circumference of the hinge pin bushing. This is made of plastic and is not completely rigid, but can be radially deformed to the required small extent.

However, the means according to claim 15 can also act axially outside the hinge pin bushing or through a window of the same directly against the inner circumference of the hinge pin recess (claim 15).

The drawing shows embodiments of the invention.

Fig. 1 shows a first embodiment of a hinge as a front view partially in section through the axis of the hinge bolt;

Fig. 2 shows a view of the hinge bolt according to Fig. 1 from the left;

Fig. 3 shows a view corresponding to Fig. 1 of a further embodiment;

Fig. 4 shows a view corresponding to Fig. 1 of a

third embodiment;

Fig. 5 shows a view of the hinge bolt according to Fig. 4 from the left;

Fig. 6 shows a view of the upper hinge part according to Fig. 4 from above with the countersunk screw inserted;

Fig. 7 shows the same view without countersunk screw;

Fig. 8 shows a view corresponding to Fig. 1 of a fourth embodiment;

Fig. 9 and 10 show horizontal sections along the line IX-IX in Fig. 8 on an enlarged scale;

Fig. 11 shows a view corresponding to Fig. 1 of a fifth embodiment of a band;

Fig. 12 shows a section of Fig. 11 with a different operating state of the eccentric;

Fig. 13 and 14 show horizontal sections along the lines XIII-XIII and XIV-XIV in Fig. 12 and 11 respectively.

The hinge, designated as a whole with 100 in Fig. 1, comprises a hinge part 10 to be fastened to the fixed frame and a hinge part 20 to be fastened to the sash frame. The hinge part 10 comprises a fastening part 1, which is placed with its flat back on the flat front of the frame profile and is fastened there by two screws arranged one above the other in the exemplary embodiment, which pass through holes 21 and engage in corresponding holes in the profile.

The fastening part 1 has an approximately rectangular outline with the longer side standing upright and continues on the longer side on the right in Fig. 1 into a hinge part 2, which is just as high as the fastening part 1 and has a more square cross-section that projects forwards out of the plane of the drawing over the fastening part. In the hinge part 2, a hinge pin recess 3 is provided, which has a vertical axis in the operating state, in which a hinge pin bushing 4 is arranged, which serves to rotatably support the hinge pin 5, which is essentially cylindrical with

a circular cross-section. The hinge pin bushing 4 rests at its lower end on a screw plug 7, with the aid of which the vertical position of the hinge pin bushing 4 in the operating position can be adjusted.

The hinge part 20 of the wing also comprises a fastening part 11 with holes 21 arranged one above the other for fastening screws. The outline of the fastening part 11 is also rectangular, and as a fastening part 11 it merges at its left edge into a hinge part 12, which has a more square cross-section that protrudes forwards over the fastening part 11 and is thus arranged above the hinge part 2.

The hinge part 12 has a hinge pin recess 13 in which a hinge pin bushing 14 is arranged, which has a radially outwardly projecting flange at its lower end, which is arranged in a flat recess 6 at the upper end of the hinge pin bushing 4 and via which the load of the sash transmitted by the fastening part 11 is diverted to the hinge pin bushing 4. The radial flange 15 forms a sliding intermediate layer for smooth and low-wear mounting of the sash.

With its outer circumference 16, the hinge pin bushing 14 rests in the hinge pin recess 13 of the hinge part 12. The hinge pin 5 extends from the hinge pin bushing 4 into the hinge pin bushing 14 and rests with its outer circumference on the inner circumference of the hinge pin bushing 14.

In the area of the hinge part 20 there can be play due to manufacturing tolerances of the bearing parts, especially if the tolerances happen to be all in one direction. For example, the outer diameter of the hinge pin 5 can have a tolerance, as can the inner circumference 17 and outer circumference 16 of the hinge pin bushing 14. Furthermore, the hinge pin recess 13, which is manufactured using the extrusion process and is generally not reworked, can have noticeable tolerances.

The band parts 10,20 are extruded from

made of an aluminum material. The hinge pin bushings 4 and 14 are made of suitable plastics.

The play can cause the sash to "hang", i.e. to have inaccurate positioning, which can lead to difficulties when closing the sash.

In order to eliminate the play, locking means are provided, which in the simplest embodiment of the band 100 include a wedge 18. The hinge pin 5 has an axially parallel keyway 8, the lateral flat flanks 8', 8" of which are parallel to one another and their spacing corresponds to the thickness of the plate-shaped wedge 18. The keyway 8 extends approximately from the middle of the hinge pin 5 to the upper end in Fig. 1 and 2 and becomes deeper in this direction. The flat bottom 9 of the keyway 8 thus runs obliquely to the axis of the hinge pin 5 and its angle of inclination corresponds to the wedge angle. The wedge 18 can be inserted lengthwise into the keyway from above and is pressed in and fixed by the head of a cap screw 19. The wedge surface 22 rests on the bottom 9 of the keyway 8 and presses the upper end of the hinge pin 5 to the right as shown in Fig. 1. The support surface 23 of the wedge 18 opposite the wedge surface 22 lies against the inner circumference 17. the hinge pin bushing 14. Since this is made of plastic, it is deformed into a slightly oval shape by the wedge forces until the outer circumference 16 rests on the inner circumference of the hinge pin recess 13 on both sides and the play is eliminated. The wedge forces act in a plane parallel to the sash plane.

This also applies to the band 200, in which the clamping means are also formed by a wedge 25, which in this case is, however, semicircular and sits in a semicircular radial groove 24, created with a disk milling cutter, in the circumference of the band pin 5. A coaxial threaded hole 27 is made in the upper end of the band pin 5, in the clear cross section of which the wedge 25 is inserted with its apex.

near areas. A pointed grub screw 28 is screwed into the threaded hole 27, which with its conical tip 29 comes into contact with the areas of the wedge 25 near the apex and presses it radially outwards. The flat base surface 26 of the wedge rests on the inner circumference 17 of the hinge bushing 14. When the grub screw 28 is tightened, the upper end of the hinge pin 5 is pressed to the left as shown in Fig. 3 and the hinge pin bushing 14 is deformed oval in cross-section until it is fully seated in the hinge pin recess 13 and the play is eliminated.

In the case of the band 300 of Fig. 4 to 7, the wedge means are again based on the wedge principle and comprise a countersunk head screw 30 which is screwed into a coaxial threaded hole 31 of the upper end of the band pin 5. The conical underside 32 of the countersunk head interacts with the countersunk edge 33 of the threaded hole 31 and presses this and thus the upper edge area 34 radially apart so that it lies against the inner circumference 17 of the band pin bushing 14 and radially expands this until its outer circumference 16 rests firmly in the band pin recess 13 and the play is thereby eliminated.

Two measures support the radial deformability of the edge region 34: at a distance of 5 to 10 mm from the upper end, the hinge pin has an outer circumferential groove 35 which separates the edge region 34 from the main part of the hinge pin 5. In addition, in this area the edge region is provided with a longitudinal slot 36 which runs through the axis of the hinge pin 5 and which reduces the force required for the radial expansion of the upper end, so that the radial force obtained by screwing in the countersunk screw 30 is largely used to generate the clamping in the hinge pin recess 13.

In Fig. 6, the upper hinge part 20 can be seen with the countersunk screw 30 inserted, in Fig. 7 with the countersunk screw 30 unscrewed. Fig. 6 and 7 also show the cross-sectional shape of the hinge part 20 with the

Fastening part 11 and the projecting hinge part 12. This also applies to the hinges 100,200,400 and 500.

In the band 400 of Fig. 8 to 10, the locking means comprise an eccentric 40 which can be rotated about an eccentric pin 38 with an axis E which is parallel to the axis A of the band pin 5, but laterally offset from it, as can be seen particularly from the enlarged cross section of Fig. 9. The eccentric 40 projects laterally from its central part 41 with a projection 42, the outer circumferential surface 43 of which is the effective pressure surface of the eccentric 40. The eccentric 40 engages with the projection 42 in the band 400 through a window 44 of the band pin bushing 14, so that the outer circumferential surface 43 is directly opposite the inner circumference of the band pin recess 13.

In the operating position of Fig. 9, the clamping effect has not yet occurred. The projection 42 does not protrude radially beyond the outer circumference 16 of the hinge pin bushing 14.

The window 44 extends over such a circumferential angle in the hinge pin bushing 14 that the projection 42 can be pivoted by approximately 45° into a clamping position, which is shown in Fig. 10. The outer circumferential surface 43 rests against the inner circumference of the hinge pin recess 13 and presses the hinge pin 5 together with the hinge pin bushing 14 to the right as shown in Fig. 10, whereby the play in the sash plane is eliminated.

In the case of the band 500 of Fig. 11 to 14, the band pin bushing 14 also has a window 44, which, however, only extends as far in the circumferential direction as is necessary to accommodate a radially displaceable pressure piece 50, which can be brought into contact with its outer circumferential surface 53 against the inner circumference of the band pin recess 13. In a coaxial bore 45 of the upper end of the band pin 5, an eccentric pin 47 sits with its cylindrical part 46, which at a distance from the end of the band pin 5 has an eccentric part 48 in the form of a pin part of smaller diameter that is laterally offset from the axis.

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knife, which acts against the rear side 49 of the pressure piece 50. The pressure piece 50 sits in a lateral cutout or window 51 in the upper area of the hinge pin 5. In Figs. 11 and 14, the pressure piece 50 is shown in the retracted state, in which it does not protrude beyond the circumference of the hinge pin 5. However, if the eccentric pin 47 is rotated, the situation in Figs. 12 and 13 occurs, and the pressure piece 50 is pressed out of the window 51 of the hinge pin 5 and through the window 44 of the hinge pin bushing 14 to the outside until the outer peripheral surface 53 rests on the inner circumference of the hinge pin recess 13. The hinge pin is thereby pressed to the left until any play in the sash plane is removed from the arrangement.

In the embodiments shown, the clamping means for removing the play are always fitted in the upper part of the band. In principle, however, it would also be possible to arrange the clamping means in the lower band part 10 attached to the frame if the design is modified accordingly. It is understood, however, that the clamping means can only be present in one of the band parts 10, 20, because otherwise the band can no longer be pivoted.

Claims (15)

1. Tape for doors, windows and the like with at least two hinge-like interacting band parts (10,20), one of which (10) can be fastened to the fixed frame and the other (20) arranged partially above it can be fastened to the sash frame, with aligned hinge pin recesses (3,13) provided in the areas arranged one above the other, which determine the hinge axis, for receiving a hinge pin engaging in the two hinge pin recesses (3,13) (5) characterized , that a hinge part (10,20) is provided with means for clamping the hinge pin (5) perpendicular to its axis in the leaf plane against the inner circumference of the hinge pin recess (3,13). 2. Belt according to claim 2, characterized in that the means comprise a wedge (18,25,32) whose actuating force acts parallel to the axial direction of the hinge pin (5). 3. Tape according to claim 2, characterized in D-40239 DÜSSELDORF ■ MULVANYSTRASSE 2 TELEPHONE 49 / 211 / 96 145 - 0 ■ FAX 49 / 211 / 96 145 - 20 that the wedge (18) is arranged in an axially parallel keyway (8) in the circumferential surface of the hinge pin (5), with a limiting surface (23) facing radially outwards and with its opposite wedge surface (22) interacts with the bottom surface (9) of the keyway (8) which is inclined to the axis of the hinge pin (5). 4. Hinge according to claim 3, characterized in that the wedge (18) at the end of the hinge pin (5) projects in the axial direction from the hinge pin (5) and can be driven into the keyway (8) in the longitudinal direction of the hinge pin (5) by means of a screw (19) which can be screwed into the end face of the hinge pin (5). 5. Tape according to claim 2, characterized in that the wedge (25) is arranged in an axially parallel keyway (24) in the peripheral surface of the hinge pin (5), with a flat boundary surface (26) points radially outwards and with its opposite wedge surface (37) projects into the clear cross section of a coaxial threaded bore (27) in the end of the hinge pin (5) and there cooperates with the pointed end (29) of a screw (28) that can be screwed into the threaded bore (27). 6. Band according to claim 5, characterized in that the wedge (25) is semi-cylindrical disc-shaped. 7. Hinge according to claim 2, characterized in that the wedge (32) is formed by the conical underside of a countersunk screw (30) which can be screwed into a threaded bore (31) at the end of the hinge pin (5) and cooperates with the edge (33) of the threaded bore (31). 8. Band according to claim 7, characterized in that the edge (33) has a countersink. 9. Hinge according to claim 7 or 8, characterized in that axially inside the effective area of the countersunk head of the countersunk screw (30) the hinge pin (5) has a circumferential groove (35). 10. A hinge according to one of claims 7 to 9, characterized in that the hinge pin (5) is longitudinally slotted at the end having the threaded bore (31) at locations distributed over the circumference. 11. Tape according to claim 1, characterized in that the means comprise an eccentric (40,48) mounted on the hinge pin (5). 12. A hinge according to claim 11, characterized in that the eccentric (40) is pivotable about an axis (E) parallel to the axis (A) of the hinge pin (5) but laterally outside the axis (A) of the hinge pin (5) and exerts a radial clamping force with its outer circumference (43). 13. Tape according to claim 11, characterized in that a pressure piece (50) is provided which is guided radially displaceably in the hinge bolt (5) and which can be radially acted upon by an axially parallel eccentric (48) rotatably mounted on the hinge bolt (5). 14. A hinge according to any one of claims 1 to 13, characterized in that the clamping means act against the inner circumference (17) of the hinge pin bushing (14) and deform it radially. 15. Hinge according to one of claims 1 to 13, characterized in that the means act axially outside the hinge pin bushing (14) or through a window (44) thereof directly against the circumference of the hinge pin recess (13).