EP1126115A2 - Hinge with self-locking eccentric adjustment drive - Google Patents

Abstract

The adjustable joint frame has a frame hinge part and casement/leaf part interlinked. An abutment part (1) is fixed to the casement/leaf, and an adjustment part (2) is movably guided in a horizontal direction in a direction at right angles to the articulated axis (10). The adjusting drive comprises a cam (3) which has a cylindrical part (11) rotarily held in a cavity (12) in the adjustment's cavity. An eccentric cylindrical pin fits into an elongated hole in the abutment. The cavity forms at least one pair of supports for the peripheral surface of the cylindrical part.

Description

The invention relates to an adjustable hinge for doors or windows, with a frame hinge part to be attached to the frame and a Wing to be attached to the wing hinge part, which is articulated with the frame hinge part is connected and consists of an abutment part which can be fixed on the wing and an adjustment part, the adjustment part compared to the Abutment part in a horizontal, perpendicular to the joint axis Direction of displacement is guided by means of a counter the abutment part supported self-locking adjustment drive continuously is adjustable and can be locked by means of at least one locking screw, wherein the adjustment drive comprises an eccentric which one in one Recess of the adjusting part rotatably held cylindrical part and an eccentric for this purpose, which engages in an elongated hole of the abutment part, has cylindrical eccentric.

An adjustable hinge strap of this type is known from the EP 0 652 345 A1. The well-known hinge is made by an eccentric set via a cylindrical coaxial to the axis of rotation of the eccentric Body is rotatably mounted in the adjustment part and is eccentric arranged to the axis of rotation cylindrical eccentric in engages a cylindrical recess of a sliding block, the Sliding block in turn in the slot of the abutment part with little Play is guided. This causes in the slot of the Abutment slidably guided sliding block the self-locking of the Actuator. Due to the weight of the door or window sash a moment arises which is hinged on one side Wing rotates around its center. This moment creates in the direction of displacement of the adjustment part on the upper hinge one of that Frame directed tensile force and one in the lower hinge Thrust directed towards the frame. When the locking screw is loosened, this pulling or pushing force acts on the sliding block in the abutment part the eccentric pin. The eccentric is not twisted, however, but the sliding block is only pressed against its lateral guidance. The there friction is so strong that the sliding block and thus the Eccentric is held in place. But if the eccentric is over Tool, e.g. an Allen key, then the friction, which is desired for self-locking, overcome. This wrist band has proven itself in practice, but requires a certain amount Minimum size and a fairly large number of individual parts.

A door or window hinge is also known from EP 0 259 618 Lateral adjustment is effected by means of an eccentric. With this wrist band the eccentric is not in the adjustment part, but in the abutment part rotatably added. The eccentric pin engages in an elongated hole in the Adjustment part to effect the side adjustment. A wrist band with these features emerge from the preamble of claim 2. On The main disadvantage of the side adjustment device of this hinge is that they have hardly any self-locking properties due to the lack of sliding block having. When loosening the locking screw to adjust the Side distance between the wing and the frame of the eccentric burdened by the force due to the wing weight and can easily turn from its set position to a stop position. The consequence is that the wing needs to be completely realigned.

The invention has for its object to provide an adjustable hinge a sufficient self-locking effect of the adjustment drive to create released locking screw, which has few components and is therefore inexpensive and can be manufactured with a small size.

The object is achieved in that the recess at least one base pair to support the peripheral surface of the forms cylindrical part of the eccentric, the two bases of the Base pairs on the same side of the vertical median plane and too lie on both sides of the horizontal central plane of the recess.

This solution is both in the case of an articulated ligament in a recess of the Adjustment part rotatably held eccentric (claim 1) as well as one Hinge with rotatably held in a recess of the abutment part Eccentric (claim 2) can be used.

In other words, the recess has a pair of support points, which due to the pulling force of the sash weight is self-locking of the adjusting drive exerting clamping force on the eccentric. The Recess forms at least on the side against which the eccentric released locking screw is pressed due to the sash weight Base pair, whose base is a certain angular distance from the upper and lower vertices of the cylindrical part of the eccentric exhibit. There is usually no precise point contact between the surface of the recess and the peripheral surface of the cylindrical part. Preferably, the contact surface of the recess in the essentially a plane that is tangential to the peripheral surface of the cylindrical part of the eccentric, so that strictly speaking in each Base creates a line-shaped contact area. It would be too possible, through a contact tip in the recess a punctiform Generating contact area, however, this could result in an excessive surface pressure arise, causing the surfaces of the components in question would be damaged. In the following, the term "base" thus refers the contact area in a certain angular position of the recess, which keeps the cylindrical part of the eccentric rotatable, regardless of the exact shape of the contact area.

The cylindrical part of the eccentric is therefore over defined support points and not through a complementary cylindrical inner surface of the recess supported. Thus, the contact area between the cylindrical part and the recess, which increases the surface pressure increased in the area of the bases. In addition, a supporting force can essentially only in the radial direction on the peripheral surface of the cylindrical part of the eccentric. The force vector in the bases that are essentially opposite each other in the vertical direction together from the horizontal components that are parallel to the direction of displacement act and balance the forces due to the wing weight, and the vertical force components. The vertical force components are internal forces in the cylindrical part of the eccentric each for a base pair and the size of the The angular position of the two support points results because the effective direction of the total force in every base - as I said - must run radially.

At a base located on the horizontal central plane of the cylindrical Partly and thus the recess corresponds to the radial direction the horizontal direction and thus the direction of displacement, so that the vertical force component would be zero. With a base pair near the cap of the cylindrical part, i.e. near its vertical median plane, would become very large vertical due to small horizontal forces Power components arise. Otherwise permanent deformations could occur the metallic contact surfaces due to excessive vertical force components are caused.

Appropriate positioning of the base pair makes it possible to find a suitable one Gain factor for the support force generated by the sash weight achieve. This support force can be more precise via the coefficient of friction said the coefficient of static friction of those in contact Surfaces are converted into a frictional force, which in tangential Direction of the peripheral surface of the cylindrical part of the eccentric acts and a rotation of the eccentric hindered. So it will be by appropriate choice the position of the base pair an adjustment of the eccentric by Force applied via the wing in the horizontal direction of displacement counteracted safely, since there is a sufficiently high static friction.

If the direction of action of the adjusting force due to the sash weight is known (at the upper hinge away from the frame and at lower hinge towards the frame) it is sufficient if only on one A base pair is arranged on the side of the recess. In this case on the opposite side, e.g. in the area of horizontal Central plane of the cylindrical part of the eccentric, a third Base to be provided. The base pair and the third base form a triangle, in the corners of which the support points for the cylindrical Part of the eccentric. Such a recording is sufficient to to guide cylindrical part stationary but rotatable. In the other areas the peripheral surface of the cylindrical part is no further contact with the Recess required. The recess can therefore only by wall sections be formed in these three bases.

It makes sense to enclose the recess in the cylindrical part of the Eccentrics completely with a more or less large game, being It is important to ensure that when the adjusting force acts in the horizontal direction only contact in the area of the base points of a base pair consists. It also makes sense on both sides of the vertical central plane of the recess for the cylindrical part in each case to provide a base pair. This creates the desired one self-locking effect when working in both horizontal directions Adjusting forces. The wrist band can thus be used as both an upper and a lower hinge and for the right stop as well as for the Left stop of the wing can be used.

In a preferred embodiment of the hinge strap, the Recess an upper and a lower, the cylindrical part of the Eccentric wall section encompassing little play. To these two cylindrical wall sections close tangentially to the peripheral surface of the cylindrical part extending wall sections. Any transition area between the end of a cylindrical wall section and one tangential wall section forms a base. The one on the same side with respect to the vertical median plane of the recess lying transition areas between the cylindrical wall sections and the tangential wall sections form a base pair.

Because the self-locking of the eccentric by the choice of the support areas its cylindrical part, no sliding block is necessary. The The adjustment drive and thus the hinge can be made very small.

The parts of the wing hinge part, namely the adjustment part, are preferred the abutment part and the eccentric are made as zinc die-cast parts. The The coefficient of friction of this material leads to optimal self-locking of the eccentric with sufficient ease of adjustment using an adjustment tool if the two bases of a base pair an angular distance of 20 to 30 ° to the vertical central plane of the Have recess for the cylindrical portion. This results in in the embodiment with two tangential wall sections an angle of 40 ° to 60 °, the top view of the tangential wall sections is included.

The eccentric preferably has a hexagon recess for a hexagon wrench on. On the outside of the adjustment part can - how in the prior art mentioned at the outset - a display marking with be attached to a scale on which by means of a pointer on the eccentric the current adjustment position of the eccentric can be read.

Fig. 1

eine räumliche Rückansicht der Teile des Flügelbandteils,

Fig. 2

eine Rückansicht des Verstellteils mit in die Ausnehmung eingefügtem Exzenter,

Fig. 3

eine Draufsicht auf die Kontur der Ausnehmung in der Rückwand des Verstellteils aus den Figuren 1 und 2,

Fig. 4

eine räumliche Draufsicht auf die Teile des Flügelbandteils und

Fig. 5

eine Draufsicht auf das Widerlagerteil mit in das Langloch eingreifendem Exzenter.

Further details of the present invention result from the following description of an exemplary embodiment with reference to the drawings. The drawings show in

Fig. 1

a spatial rear view of the parts of the wing hinge part,

Fig. 2

3 shows a rear view of the adjustment part with an eccentric inserted into the recess,

Fig. 3

2 shows a plan view of the contour of the recess in the rear wall of the adjustment part from FIGS. 1 and 2,

Fig. 4

a spatial plan view of the parts of the wing hinge part and

Fig. 5

a plan view of the abutment part with the eccentric engaging in the slot.

The wing hinge part shown in the drawings is composed an abutment part 1, an adjustment part 2 and an eccentric 3 Abutment part 1 is with its recognizable in Fig. 1 back put a door or window wing, two trunnions 4 holes stick out in the wing. On the abutment part 1 is in between Eccentric 3 the adjustment part 2 is placed, it being the upper and lower Walls around the abutment part 1 with little play and thereby is guided horizontally on the abutment part. The adjustment part 2 has elongated holes 6.7, each of which has a locking screw (not shown) are penetrated, either in the wing itself or in Tapped holes 8 of the abutment part 1 are screwed, the Screw heads of the locking screws the adjustment part 2 opposite Fix abutment part 1 or opposite the wing.

The adjustment part 2 has a pin receptacle 9 for the pivot pin of the Wrist band on. The hinge axis 10 of the pin receptacle 9 runs in vertical direction. The one that protrudes downward from the pin receptacle Pin section is attached to the frame in a pin bearing Frame hinge part (not shown) rotatably added.

The eccentric 3 comprises a cylindrical part 11 which is in a recess 12 is inserted in the rear wall of the adjustment part 2. On the in Fig. 1st visible back of the cylindrical part 11 and eccentric to it A hollow eccentric pin 13 is formed on the central axis. The eccentric pin 13 engages in a slot 14 of the abutment part 1 with little play. In the illustrated embodiment, the elongated hole 14 is a pocket formed, on the rear wall of the support pins 4 are arranged.

On the front of the cylindrical part 11 of the eccentric 3 is concentric a cylindrical projection 15 is formed with a reduced diameter. The cylindrical projection 15 has a hexagon recess 16 for a hexagon adjustment key (also called INBUS® key). A radial projection 17 is also formed on it. The cylindrical Projection 15 and the radial projection 17 protrude through a recess 18 in the middle of the adjustment part 2 with sufficient play so that a contact is avoided in the radial direction. So the eccentric 3 is only supported its cylindrical part 11 against the rear recess 12 in Adjustment part 2. The recess 18 essentially comprises two each other diametrically opposite shoulders, which is a stop for the form radial projection 17 of the eccentric 3 and thus the adjustment range of the eccentric 3.

On the front of the adjustment part 2 is in the periphery of the recess 18 applied an adjustment scale 19, which in connection with the radial projection 17 of the eccentric 3, the adjustment position of the adjustment part 2 opposite the abutment part 1 indicates.

As mentioned, the radial projection 17 of the eccentric 3 has no contact to recess 18, except for the radial shoulders of this recess 18. In the horizontal direction of displacement, the eccentric 3 is exclusive through its cylindrical part 11 in the recess 12 of the Adjustment part 2 held. The recess 12 settles, as in particular in 2 and 3 recognizable, from an upper cylindrical section Wall section 20 and a corresponding lower wall section 21 as well as four adjoining these cylindrical wall sections 20, 21 tangential wall sections 22-25 together. At a distance from the cylindrical Part 11 of the eccentric 3 run two the ends of the tangential Vertical wall sections 26 and 27 connecting wall sections 22-25.

In the area of the transitions of the cylindrical wall sections 20,21 in the tangential wall sections 22-25 are the four support points 28-31 for the cylindrical part 11 of the eccentric 3. The form on the right Side of the vertical center plane 32 of the recess 12 support points 28,29 a first base pair and the one on the left bases 30, 31 a second base pair. The angle α between two tangential wall sections is approximately 45 °. It's closed recognize that the tangential support surfaces 22,24 in the support points 28,29 develop a wedge effect when the cylindrical part 11 of the eccentric 3 in horizontal direction is pressed to the right. The cylindrical part 11 is between the upper tangential surface 22 and the lower tangential Surface 24 clamped so that there is increased friction, which self-locking of the eccentric adjustment drive against twisting a force acting horizontally to the right. The same applies to a displacement of the cylindrical part 11 within the recess 12 to the left. In this case, the support points 30, 31 cause pinching of the cylindrical part.

It can be seen from the drawing figures 2 and 3 that the essential the self-locking contact between the recess 12 and the cylindrical part 11 of the eccentric 3 alone in the support points 28 and 29 on the one hand and 30 and 31 on the other hand. The upper cylindrical Wall section 20 and the lower cylindrical wall section 21 only serve to guide the one received in the recess 12 cylindrical part 11 of the eccentric 3. The cylindrical wall sections 20 and 21 do not contribute to the self-locking of the eccentric drive. Nevertheless, it makes sense to completely remove the cylindrical part 11 of the eccentric 3 reach around through a closed wall of the recess 12 , among other things, to prevent liquid and dirt from entering the Avoid contact area between eccentric 3 and recess 12.

Depending on the material pairing, the clamping effect of the base pair can be 28.29 and 30.31 respectively by placing the support points 28 - 31 closer to the vertical center plane 32 of the recess 12 can be moved. However, the support points 28 - 31 are in a circular extension of the cylindrical section-shaped wall sections 20, 21 to the horizontal center plane 33 of the recess 12 displaced, the clamping force is reduced and thus the self-locking effect of the eccentric drive. Consequently can - as already mentioned - by optimally choosing the location of the bases 28 - 31 a self-locking effect can be achieved, which is certainly an unintended Rotation of the eccentric 3 due to the applied by the wing Forces prevented, but at the same time twisting of the eccentric 3 by means of an adjustment tool without excessive force enables.

It can be seen that the exact course of the walls of the recess 12 is not decisive for their self-locking effect. It must just make sure that with a horizontal shift of the cylindrical part 11 of the eccentric 3 only contact in the bases 28.29 and 30.31 prevail and in the area between the support points a base pair 28.29 or 30.31 no further contact with the Circumferential surface of the cylindrical part 11 of the eccentric 3 is made.

The drawings only show an embodiment of the invention according to claim 1, in which the eccentric 3 rotatably in a recess 12 of the adjustment part 2 is held and the eccentric pin 13 in a engages substantially rectangular slot 14 of the abutment part 1. It is but readily recognizable that the kinetic reversal at which the cylindrical part 11 of the eccentric 3 in one of the recess 12 corresponding Recess is held in the abutment part 1 and in which the Eccentric pin 13 in a slot corresponding to the slot 14 in the Adjustment part 2 engages, works in the same way.

Reference symbol list:

1

Abutment part

2nd

Adjustment part

3rd

eccentric

4th

Trunnion

5

Screw hole

6

Long hole

7

Long hole

8th

Tapped hole

9

Cone holder

10th

Hinge axis

11

cylindrical part of the eccentric

12th

Recess

13

Eccentric pin

14

Long hole

15

cylindrical projection

16

Hexagon recess

17th

radial projection

18th

Recess

19th

Adjustment scale

20th

cylindrical wall section

21

cylindrical wall section

22-25

tangential wall section

26-27

vertical wall section

28-31

base

32

vertical center plane

33

horizontal median plane

α

Angle between tangential wall sections

Claims (6)

Adjustable hinge for doors or windows, with a frame hinge part to be attached to the frame and a wing hinge part to be attached to the sash, which is articulated to the frame hinge part and is composed of an abutment part (1) which can be fixed on the sash and an adjustment part (2), the The adjustment part (2) is displaceably guided relative to the abutment part (1) in a horizontal direction of displacement perpendicular to the hinge axis (10), is continuously adjustable by means of a self-locking adjustment drive supported against the abutment part (1) and can be locked by means of at least one locking screw, the adjustment drive comprises an eccentric (3) which has a cylindrical part (11) rotatably held in a recess (12) of the adjusting part (2) and a cylindrical eccentric pin (13) which engages in an elongated hole (14) of the abutment part (1) has, characterized in that the Ausneh tion (12) forms at least one support point pair (28, 29 or 30, 31) for supporting the peripheral surface of the cylindrical part (11) of the eccentric (3), the two support points (28, 29 or 30, 31) of the Base pairs are on the same side of the vertical central plane (32) and on both sides of the horizontal central plane (33) of the recess (12). Adjustable hinge for doors or windows, with a frame hinge part to be attached to the frame and a sash hinge part to be attached to the sash, which is articulated to the frame hinge part and is composed of an abutment part that can be fixed on the sash and an adjustment part, the adjustment part compared to the abutment part in one is displaceably guided at right angles to the hinge axis, is displaceably adjustable by means of a self-locking adjustment drive supported against the abutment part and can be locked by means of at least one locking screw, the adjustment drive comprising an eccentric which has a cylindrical part rotatably held in a recess in the abutment part and one for this Eccentric, cylindrical eccentric pin engaging in an elongated hole of the adjusting part, characterized in that the recess (12) has at least one pair of support points (28, 29 and 30 , 31) for supporting the peripheral surface of the cylindrical part (11) of the eccentric (3), the two support points (28, 29 or 30, 31) of the support point pair on the same side of the vertical central plane (32) and to both Sides of the horizontal central plane (33) of the recess (12). Adjustable hinge according to claim 1 or 2, characterized in that the recess (12) has a pair of support points (28, 29 and 30, 31) on both sides of the vertical central plane (32) of the recess (12). Adjustable joint hinge according to one of claims 1 to 3, characterized in that the recess (12) comprises an upper and a lower wall portion (20 and 21) encompassing the cylindrical part (11) of the eccentric (3) with little play, whereby connect to these cylindrical wall sections (20, 21) tangential to the circumferential surface of the cylindrical part (11) wall sections (22, 23, 24, 25) and the transition areas lying on one side of the vertical central plane (32) of the recess (12) between the cylindrical wall sections (20,21) and the tangential wall sections (22,24 or 23,25) form a base pair (29,29 or 30,31). Adjustable hinge according to claim 4, characterized in that the angle (α) between two tangential wall sections (22, 24 or 23, 25) on one side of the vertical central plane (32) of the recess (12) is between 40 ° and 60 ° . Adjustable hinge according to one of the preceding claims, characterized in that the eccentric (3) has a hexagon recess (16) for the engagement of a hexagon wrench.

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