EP3631131B1 - Hinge strip for the pivotal connection of a wing to a frame around a hinge axis - Google Patents

Description

The invention relates to a band for the hinge-joint attachment of a wing to a frame, with a band part which comprises a recess extending in the direction of the hinge axis and having an inner lateral surface, with a hinge bolt defining the hinge axis, which is located in a recess in the hinge axis arranged, an outer circumferential surface having hinge pin bushing is mounted, with an adjusting spindle having an axis of rotation and an external thread, which is provided in a recess provided either in the inner circumferential surface of the recess or the outer circumferential surface of the hinge pin bushing, in cross section, circular segment-shaped and extending parallel to the hinge axis The axis of rotation is rotatably mounted and stationary in the direction of the axis of rotation and engages with its external thread with a complementary internal thread provided on the hinge pin bushing or in the recess and having a circular segment-shaped cross section, and with Means for guiding the hinge pin bushing which have the effect that the hinge pin bushing executes a swiveling movement about the axis of rotation of the adjusting spindle when it is displaced in the direction of the hinge axis in a swivel range.

Such a tape is from the EP 1 982 032 B1 known. The adjusting spindle assumes two functions at the same time in this belt, namely one on the one hand

Guiding of the hinge pin bushing parallel to the hinge axis, on the other hand a shift of the hinge pin bushing when turned. The latter is fixed in the direction of the hinge axis by the threaded engagement with the adjusting spindle within the recess widened in the adjusting direction, against the wall opposite the adjusting spindle, but can be fixed around its outer circumference by providing appropriate clearance angles between the hinge pin bushing and the receptacle in the area of the adjusting spindle be moved. Due to the guide means provided for guiding the hinge pin bushing, which are used in the EP 1 982 032 B1 Embodiments shown include a sliding block guided in a gate, the gate running obliquely to the hinge axis, the hinge pin bushing and thus the hinge pin mounted in it moves in a pivoting movement approximately around the axis of rotation of the adjusting spindle. Another band with an adjusting spindle is, for example, from the DE 20 2006 002 236 U1 known.

In practice, it has been found to be disadvantageous with this hinge that the hinge pin bushing in the receptacle often has play that negatively affects the quality of the hinge due to manufacturing tolerances that are always present.

The invention is therefore based on the object of providing a tape which is improved with regard to this disadvantage.

This object is achieved by the tape reproduced in claim 1.

In the case of the belt according to the invention, at least one projection is provided either on the outer surface of the hinge pin bushing or on the inner surface of the recess on both sides of the adjusting spindle, of which at least one is always in engagement with one in the inner surface of the recess or in the outer circumferential surface of the hinge pin bushing provided recess. Surprisingly, it has been shown that in practice, despite the static overdetermination implemented in the tape according to the invention, there are generally no clamping conditions that cannot be avoided in practice - since a relative movement is difficult or even preventing. Rather, it was found that the hinge pin bushing has little or no play in the entire swivel range in the receptacle.

The means for guiding preferably comprise at least one guide slot which runs obliquely to the hinge axis and is provided either in the inner surface of the recess or in the outer surface of the hinge pin bushing. The term "oblique" is to be interpreted broadly. What is meant is a course of the guide link neither transversely nor parallel to the hinge axis. However, within these limits it does not have to be straight, but can also be curved, for example curved in relation to the hinge axis.

This at least one guide slot can be provided in a sliding surface which is formed by the belt part itself. However, it is also possible and preferred to provide the at least one guide slot in a sliding surface of a sliding bearing hinge part, which forms part of the inner circumferential surface of the recess of the hinge part. The latter exemplary embodiment includes the possibility of forming the sliding surface using a material which is particularly suitable for this purpose, for example because of a low coefficient of friction with the hinge pin bushing material.

The slide bearing surface preferably extends parallel to the axis of rotation of the adjusting spindle and has a radius of curvature which corresponds to the distance between the slide bearing surface and the axis of rotation. The information "parallel" and "corresponds to the distance ..." are not to be interpreted exactly mathematically, but include deviations, for example due to manufacturing tolerances.

If - as is preferred - the at least one guide slot is formed in the inner lateral surface of the recess, a sliding block cooperating with the at least one guide slot is provided - particularly preferably - on the outer lateral surface of the hinge pin bushing.

A further development of the belt according to the invention is particularly preferred, in which exactly two guide blocks running parallel to one another and exactly two slide blocks are provided, each cooperating with one of the guide blocks. Surprisingly, it has been shown that despite the repeated, additional static overdetermination in this embodiment, the hinge pin bushing within the recess does not tend to jam during pivoting about the axis of rotation of the adjusting spindle, but the hinge pin bushing is received in the recess of the hinge part with particularly little play over the entire pivoting range.

In order to be able to fix the hinge bolt in the hinge part against displacement in the direction of the hinge axis, in a particularly preferred embodiment of the tape according to the invention, an opening extending parallel to the at least one guide slot is provided in the hinge pin bushing for the passage of a fixing screw, which can be screwed in with the Hinge bolt can be brought into operative connection in a non-positive and / or form-fitting manner. So that the hinge pin bushing remains displaceable relative to the hinge pin in the direction of the hinge axis for the purpose of displacement transversely to the hinge axis, the opening in the direction of the hinge axis has a width that preferably corresponds to at least the sum of the diameter of the fixing screw and the maximum displacement of the hinge pin bushing in the direction of the hinge axis .

It has a positive effect on the mechanical strength of the tape according to the invention if - as is preferred - the outer surface of the hinge pin bushing has a contact area for contact with the sliding bearing surface which - apart from the usual manufacturing tolerances - is curved with a radius which - again apart from Manufacturing tolerances - corresponds to the distance between the contact area and the axis of rotation. This measure has the effect that the hinge pin bushing not only rests directly or indirectly against the hinge part on the side of the adjusting spindle via the adjusting spindle, but also directly or indirectly on the side opposite the adjusting spindle.

In order to create the clearance required for pivoting the hinge pin bushing about the axis of rotation of the adjusting spindle, the circular segment of the cross section of the receptacle is 130 ° to 180 ° and the circular segment of the internal thread is 150 ° to 160 °. It has been shown that the thus guaranteed minimum clearance angle of 20 ° ensures a sufficient pivoting range of the hinge pin bushing about the axis of rotation of the adjusting spindle.

To lock the adjusting spindle in the direction of its axis of rotation, it can - particularly preferably - have an annular groove into which an approximately fork-shaped locking element engages when the adjusting spindle is mounted in the hinge part. The latter can be designed as an insert part that can be optionally fixed in the hinge part, so that, if necessary, the hinge pin bushing can be assembled and dismantled together with the adjusting spindle.

• Fig. 1 ein Bandteil eines erfindungsgemäßen Beispiels eines Bandes in einer Ansicht in Richtung der Scharnierachse, wobei auf die Darstellung des Bandbolzens verzichtet worden ist;
• Fig. 2 den Ausschnitt A in Fig. 1 mit etwa in Mittelstellung befindlicher Bandbolzenbuchse; Fig. 2a einen der Vorsprünge der Bandbolzenbuchse in einer vergrößerten Einzeldarstellung;
• Fig. 3 dieselbe Darstellung wie in Fig. 2, jedoch mit einer etwa in ihre rechte Extremstellung verlagerten Bandbolzenbuchse;
• Fig. 4 das Bandteil gemäß Fig. 1 bis 3 - nun mit Bandbolzen - in einer perspektivischen Einzelteildarstellung in Vorderansicht sowie Fig. 5 dasselbe Bandteil in einer Fig. 4 entsprechenden Darstellung, jedoch in einer perspektivischen Rückansicht.

An exemplary embodiment of the invention is shown schematically in the drawing. Show it:

• Fig. 1 a hinge part of an example of a hinge according to the invention in a view in the direction of the hinge axis, the hinge pin not being shown;
• Fig. 2 the section A in Fig. 1 with hinge pin bushing approximately in the middle position; Fig. 2a one of the projections of the hinge pin bushing in an enlarged detail view;
• Fig. 3 same representation as in Fig. 2 , but with a hinge pin bushing shifted approximately to its right extreme position;
• Fig. 4 the hinge part according to Figs. 1 to 3 - now with hinge bolts - in a perspective view of individual parts in a front view as well Fig. 5 the same part of the tape in one Fig. 4 corresponding representation, but in a perspective rear view.

The embodiment of the hinge according to the invention shown in the drawing comprises a hinge part 100. This hinge part can be both a sash hinge part to be attached to a leaf, for example a door leaf, and a frame hinge part to be attached to a frame, for example a door frame. It is part of a band to a Hinge axis S hinge-joint attachment of a wing, not shown in the drawing, to a frame, also not shown. The hinge axis S is defined by the central longitudinal axis of a hinge pin 1.

The hinge part 100 comprises a recess 2 which extends in the direction of the hinge axis S and has an inner jacket surface 3. A hinge pin bushing 4 with a through hole 5 is arranged within the recess 2. The latter has an inner diameter d which is only slightly larger than the outer diameter D of the hinge pin 1, so that it is at least substantially free of play in the through-hole 5 of the hinge pin bushing 4 in directions transverse to the hinge axis S.

The hinge pin bushing 4 has an outer jacket surface 6 into which an internal thread 7 of circular segment-shaped cross-section is incorporated. The circular segment-shaped cross section extends over an angle w of approximately 150 °.

In engagement with the internal thread 7 is an adjusting spindle 9 having a complementary external thread 8. It is rotatable about an axis of rotation X in a receptacle 10 provided on the inner surface 3 of the recess 2 of the hinge part 100, which is in the shape of a segment of a circle and extends over an angle W. of approximately 180 ° extending cross-section, stored. The axis of rotation X runs approximately parallel to the hinge axis S. In the direction of the axis of rotation X, the adjusting spindle 9 is fixed in the receptacle 10. For this purpose, the adjusting spindle 9 can have an annular groove 11 into which an approximately fork-shaped locking element 12 adapted to the annular groove 11 engages, which in turn is mounted in a corresponding seat 13 of the hinge part 100.

At at least one front end, the adjusting spindle 9 has a measure for attaching a turning tool, for example a hexagon socket 14. Due to the fixed mounting of the adjusting spindle 9 in the receptacle 10 in the direction of the axis of rotation X and the engagement of the external thread 8 in the internal thread 7, a Rotary actuation of the adjusting spindle 9 shifts the hinge pin bushing 4 parallel to the axis of rotation X.

On the side opposite the adjusting spindle 9, means 15 are provided within the recess 2 which cause the hinge pin bushing 4 to execute a swivel movement about the axis of rotation X of the adjusting spindle 9 in a swivel range B when shifted parallel to the axis of rotation X and thus in the direction of the hinge axis S . For this purpose, the inner jacket surface 3 of the recess 2 is widened in relation to the outer jacket surface 6 of the hinge pin bushing 4 in the direction of the pivoting movement.

In the exemplary embodiment of the invention shown in the drawing, these means 15 comprise two guide slots 16, 17 which run parallel to one another and at an angle to the hinge axis S. They are provided in a sliding bearing component 18 which is inserted into the recess 2 and whose side facing the hinge pin bushing 4 is designed as a sliding surface 19 and forms part of the inner jacket surface 3 of the recess 2.

The sliding surface 19 extends parallel to the axis of rotation X of the adjusting spindle 9 and thus parallel to the hinge axis S. It is curved with a radius R which corresponds to the distance between the sliding surface 19 and the axis of rotation X.

The sliding bearing component 19 is fixed in the recess 2 in the direction of the hinge axis S with a stud screw 20 which is screwed into a threaded hole 21 provided for this purpose in the hinge part 100 and which - as will be described below - also fixes the hinge pin 1 in the direction the hinge axis S is used.

To form the means 15, two sliding blocks 21, 22 adapted to the guide slots 16, 17 are provided on the side of the hinge pin bushing 4 opposite the internal thread 7. As in the Figs. 1 to 3 As can be seen, the hinge pin bushing 4 rests with part of its outer jacket surface 6 on the sliding surface 19 of the sliding bearing component 18. If the hinge pin bushing is now displaced parallel to the axis of rotation X within the recess 2 by turning the adjusting spindle 9, the engagement of the sliding blocks 21, 22 in the guide slides 16, 17 running obliquely to the axis of rotation X causes the simultaneous pivoting movement of the hinge pin bushing 4 about the axis of rotation X. Here, the area of the outer jacket surface 6 which rests on the sliding surface 19 slides on the latter from. Since - as already mentioned above - the hinge pin 1 is mounted essentially free of play in the through hole 5 of the hinge pin bushing 4, the hinge axis S defined by it is also displaced on an arc within the pivoting range B. The maximum displacement path is in Fig. 3 , in which the hinge part with the hinge pin bushing 4 is shown in the extreme right-hand position. It goes without saying that due to this displaceability of the hinge pin 1 and thus the hinge axis S within the recess 2, a wing can be adjusted within a frame in a direction perpendicular to the hinge axis S.

To fix the hinge bolt 1 in the direction of the hinge axis S, the hinge bolt 1 comprises an annular groove 23, the width of which is adapted to the diameter of the stud screw 20 so that its end leading in the screwing direction can be screwed into the annular groove 23. The stud screw 20 penetrates the hinge pin bushing 4 in an opening 24, the width b of which in the direction of the hinge axis corresponds at least to the sum of the diameter of the fixing screw and the maximum displacement path of the hinge pin bushing 4 in the direction of the hinge axis S.

To reduce any play of the hinge pin bushing 4 within the recess 2 due to manufacturing tolerances, two projections 25, 26 are provided on the outer jacket surface 6 of the hinge pin bushing 4 on both sides and symmetrically to the internal thread 7. They extend parallel to the hinge axis S over the entire length of the hinge pin bushing. Each of the projections 25, 26 has opposite, parallel side surfaces F and a curved edge surface R, as shown in FIG Fig. 2a , which schematically shows the cross section of a projection, can be seen. The lines of symmetry of the edge surfaces R in the direction of the hinge axis S of the two projections 25, 26 have an angular spacing Ω of approximately 65 ° with respect to the hinge axis S. As in Fig. 2 is shown, the projections 25, 26 are not aligned parallel to the boundary lines of this angle, but the central planes E between the surfaces F are inclined towards each other and in the illustrated embodiment deviate from the boundary lines by an angle δ of about 20 °.

The inner jacket surface 3 of the recess 2 has two depressions for one of the projections 25, 26 in each case. The projections and depressions are formed in such a way that in the in Fig. 2 Both projections 25, 26 are in engagement with the troughs 27, 28 in the recess 2 and at least one of the two projections is in engagement with the associated trough over the entire pivoting range B. In this context, “engaged” is to be understood as meaning that the projection touches the surface that delimits the trough at least linearly.

The exemplary embodiment of the hinge part 100 shown in the drawing comprises a base body 29 which has a hinge part 30 and a fastening part 31. The recess 2 is provided in the hinge part 30. The fastening part 31 is designed for mounting the hinge part on a visible side of a wing or frame. It goes without saying that the invention and the embodiments described above are not restricted to this conception. Rather, it is also possible to provide the fastening part for attachment to narrow sides of the wing or the frame, which face one another in the closed state of the wing. Furthermore, the illustrated embodiment includes a cover element 32 which, in the assembled state, covers the visible sides of the base body 29 and the hinge part 30. A fastening screw 33 is used to fix it, which screw can be screwed through a bore 34 of the fastening part 31 into a thread 35 on the rear side of the cover element.

It should be noted that the invention and the embodiments described above can also be implemented without a cover element.

Reference list:

100

Hinge part

1

Hinge pin

2

Recess

3

inner jacket surface

4th

Hinge pin bushing

5

Through hole

6th

outer jacket surface

7th

inner thread

8th

External thread

9

Adjusting spindle

10

admission

11

Ring groove

12th

Locking element

13th

Seat

14th

Hexagon socket

15th

medium

16

Leadership backdrop

17th

Leadership backdrop

18th

Plain bearing component

19th

Sliding surface

20th

Stud bolt

21

Sliding block

22nd

Sliding block

23

Ring groove

24

breakthrough

25th

head Start

26th

head Start

27

trough

28

trough

29

Base body

30th

Hinge part

31

Fastening part

32

Cover element

33

Fastening screw

34

drilling

35

thread

b

width

B.

Swivel range

d

Inside diameter

D.

outer diameter

K

Circular arc

R.

radius

S.

Hinge axis

w

angle

W.

angle

δ

angle

X

Axis of rotation

f

Surfaces

r

Edge surface

E.

level

Ω

Angular distance

Claims (10)

1. Hinge for fastening a leaf to a frame in a hingedly articulated manner about a hinge axis (S),
   comprising a hinge part (100) which has a recess (2) that extends in the direction of the hinge axis (S) and has an inner lateral surface (3),
   comprising a hinge pin (1) which defines the hinge axis (S) and is mounted in a hinge pin bushing (4) that is arranged in the recess (2) and has an outer lateral surface (6), comprising an adjustment spindle (9) that has an axis of rotation (X) and an external thread (8) and is mounted in a receptacle (10) so as to be rotatable about the axis of rotation (X) and stationary in the direction of the axis of rotation (X), which receptacle is provided either in the inner lateral surface (3) of the recess (2) or in the outer lateral surface (6) of the hinge pin bushing (4), has a circle-segment cross section and extends in parallel with the hinge axis (S), and which spindle engages, by means of its external thread (8), with a complementary internal thread (7) that is provided on the hinge pin bushing (4) or in the recess (2) and has a circle-segment cross section,
   and comprising means (15) for guiding the hinge pin bushing (4), which means are suitably designed such that, when shifted in the direction of the hinge axis (S), in a pivot region (B) the hinge pin bushing (4) performs a pivot movement about the axis of rotation (X) of the adjustment spindle (9),
   characterized in that,
   either on the outer lateral surface (6) of the hinge pin bushing (4) or on the inner lateral surface (3) of the recess (2) on both sides of the adjustment spindle (9), at least one projection (25, 26) is provided in each case, of which, in the pivot region (B), at least one projection is always in engagement with a trough (27, 28) provided in the inner lateral surface (3) of the recess (2) or in the outer lateral surface (6) of the hinge pin bushing (4).
2. Hinge according to claim 1, characterized in that the means (15) for guiding comprise at least one guide slot (16, 17) which runs obliquely to the hinge axis (S) and is provided either in the inner lateral surface (3) of the recess (2) or the outer lateral surface (6) of the hinge pin bushing (4).
3. Hinge according to claim 2, characterized in that the at least one guide slot (16, 17) is provided in a sliding surface (19) of a sliding bearing component (18), which surface forms part of the inner lateral surface (3) of the recess (2) of the hinge part (100).
4. Hinge according to claim 3, characterized in that the sliding surface (19) extends in parallel with the axis of rotation (X) of the adjustment spindle (9) and is curved with a radius (R) which corresponds to the distance between the sliding bearing surface (19) and the axis of rotation (X).
5. Hinge according to any of claims 2 to 4, the at least one guide slot (16, 17) being formed in the inner lateral surface (3) of the recess (2), characterized in that a block (21, 22) cooperating with the at least one guide slot (16, 17) is provided on the outer lateral surface (6) of the hinge pin bushing (4).
6. Hinge according to any of claims 2 to 5, characterized in that precisely two guide slots (16, 17) running in parallel with one another and precisely two blocks (21, 22) each cooperating with one of the guide slots (16, 17) are provided.
7. Hinge according to any of claims 3 to 6, characterized in that an opening (24) extending in parallel with the at least one guide slot (16, 17) is provided in the hinge pin bushing (4) for the passage of a fixing screw (20), which has a diameter, for fixing the hinge pin (1) in the direction of the hinge axis (S), the opening (24) having a width (b) in the direction of the hinge axis (S) which corresponds at least to the sum of the diameter of the fixing screw (20) and the maximum displacement path of the hinge pin bushing in the direction of the hinge axis (S).
8. Hinge according to any of claims 4 to 7, characterized in that the outer lateral surface (6) of the hinge pin bushing (4) has a contact region for contact with the sliding surface (19), which contact region is curved with a radius (R) which corresponds to the distance between the contact region and the axis of rotation (X).
9. Hinge according to any of claims 1 to 8, characterized in that the circle segment of the cross section of the receptacle (10) is 170° to 180° and the circle segment of the internal thread (7) is 150° to 160°.
10. Hinge according to any of claims 1 to 9, characterized in that the adjustment spindle (9) has an annular groove (11) into which an approximately fork-shaped locking element (12) engages.

Images