EP0893564B1 - Pivot bearing for windows or doors - Google Patents

Abstract

The hinge has an upper section (11) which is firmly attached to the door wing, and a lower section (12) which is firmly attached to the frame. The two sections are movable relative to each other about a hinge pin (13). A threaded bush (14) surrounds the pin and is supported on a twist-activating flange (15) of the lower section while engaging in the upper section. The upper section is provided with an inner thread (16) for allowing relative adjustment between the threaded bush and the upper section, in which the threaded bush engages with an outer thread (17) provided in the lower third of the bush. The upper section has inner threads (16) at both its ends of its engagement bore (18) for receiving the threaded bush.

Description

The invention relates to a pivot bearing with the Features of the preamble of claim 1.

A pivot bearing with the aforementioned features is from the EP-A-0 196 435 known. The well-known pivot is with the Lower part connected in one piece. A mechanical clutch between the pivot and the upper part is only over the threaded bush given.

From EP-B-0 100 468 is a pivot bearing for doors or Known window, in particular a door hinge, with a wing-fixed Upper part and a fixed lower part, which around a Pivots are relatively rotatable, and with one of the pivots surrounding threaded bushing with a twist actuation flange is supported on the lower part and in the Top engages. The well-known threaded bush has in her a thread surrounding the trunnion of great incline. There is only one thread, into the notch pin inserted in the pivot intervenes. The cross-section of the thread is comparative large. Nevertheless, between the notch pin and his each support point in the thread a considerable specific surface pressure. Also, between that Upper part and the threaded bush in corresponding ring grooves to house a circlip that prevents that the threaded sleeve move axially relative to the upper part can. By turning the threaded bush on the ver rotary actuator flange the pivot is raised and can be decoupled from the lower part. A height adjustment between the top and bottom is not reached. The structural effort of the known pivot bearing is comparative considerable and the durability here low.

In contrast, the invention is based on the object to improve a pivot bearing with the features mentioned at the outset, that a vertical adjustment between the top and Lower part of the pivot bearing for adjusting the vertical position the wing of a door or window within the associated frame is enabled. The structural Effort to achieve vertical adjustability be small. The pivot bearing is also intended for larger wing loads suitable. The pivot bearing should also be like this be designed so that the rotational position of the upper part Threaded sleeve is secured.

This object is achieved in that the threaded bush has vertically aligned slots, and that a Head screw of the upper part through one of these elongated holes the pivot is screwed.

As a means of relative vertical adjustment between the threaded bush and the upper part has an internal thread of the upper part, in that engages the threaded bushing with an external thread.

The pivot bearing has been designed so that the Threaded sleeve has vertically aligned slots, and that a stud of the upper part through an elongated hole is screwed against the pivot. The screw connection the stud screw with the pivot pin secures the twisted position of the upper part to the threaded bush and thus the vertical position of the threaded sleeve on the lower part supported top. The formation of the elongated holes allowed one on a case-by-case basis by actuating the rotary actuation flange different adjustable vertical position, without reworking the Hole of the threaded bushing would have to be made through which the stud screw is screwed against the pivot. Furthermore is prevented that the pivot pin in the case of a sleeve Bottom part falls out below.

It is also important for the invention that means for relative vertical adjustment between the threaded bush and the top are present. As a result, it is possible that attached to a wing of a door or window Lift the upper part relative to the lower part, which is on a fixed Frame is attached. So that the vertical position of the sash in the fixed frame become. It is also important that the top with a Internal thread is provided, in which the threaded sleeve with engages an external thread. The two interlocking Threads form mutual contact surfaces with comparatively low specific surface pressure. This is not only advantageous in the sense of low adjustment forces, but also also in terms of resilience and durability the engagement between the upper part and the threaded sleeve. The thread of both parts can be compared be formed compactly without the Load capacity and the safety of the pivot bearing are impaired become. The manufacturing effort for the thread is low.

So that the pivot bearing both at the right stop, as well when the sash is hinged to the left on the frame can, the pivot bearing is designed so that the upper part internal thread for the at both ends of its engaging hole Has threaded sleeve. The manufacturing effort for a threaded bush with both internal threads is much less, than the possible additional expenditure on storage for separate Right and left turn bearings.

The pivot bearing can also be designed that between the external thread of the threaded bushing and the rotary actuation flange an all-round free groove is available is. The Freinut is for the production of the external thread the threaded sleeve advantageous. It avoids indefinable Notch stresses in the transition area between the thread and the twist actuator flange.

It is advantageous to design the pivot bearing so that the twist actuation flange over its entire surface on a bushing the lower part is supported. The socket of the lower part is used for low-friction mounting of the pivot. The support of the twist actuation flange on the socket of the lower part takes advantage of the friction-reducing effect of the socket, about the friction and thus the wear between the twist actuation flange and reduce the lower part. That carries at the same time to facilitate turning the threaded bushing at.

Window and door sashes are often pivoted so that a main wear area on the pivot bearing between the threaded bush and the lower part or its socket. Moreover must be ensured that the vertical adjustment of the threaded bushing Disability-free even after a long period of time and not by wear and tear between the threaded bushing and the lower part or its socket impaired may be. At the same time, the threaded bushing should be inexpensive be trained. Therefore, it is advantageous to turn the pivot to train that the threaded bushing is made of die-cast and / or over a completely smooth disc on the socket side the socket of the lower part is supported. A full area avoids smooth disc supported on the socket of the lower part Wear on the lower part or on the socket of the Lower part. It is avoided, for example, that on the Socket of the lower part so-called milling edges are formed, which could affect the vertical adjustability. The danger of such formation of milling edges is especially given when the threaded bushing with its overlying actuation flange is not completely smooth trained or subject to wear during use can. Such a risk would be comparatively great if the Die-cast threaded bushing. The manufacture of the threaded bush Die-cast has the advantage of being inexpensive and technical to be possible with simple means. The wear resistance such a threaded bush made of die-cast however, is not particularly large and there is a risk the formation of milling edges. It is therefore special advantageous to have a threaded bushing made of die-cast to combine a smooth disc. The vertical adjustability the threaded bushing is also guaranteed in the long term.

The pivot bearing can be designed so that the disc diameter is practically the same size as the outside diameter of the twist actuation flange. The then comparatively large disc diameter causes low specific Surface pressures and thus correspondingly low loads of the lower part or its socket. In addition, the latter is against Contact with one attached to the twist actuation flange Operating tool protected so that scratching the socket of the lower part is excluded. That also works is positive in terms of wear reduction and preservation the functionality of the vertical adjustment.

It is useful if the washer is in the threaded sleeve pressed-in fastening tabs attached to the latter is. The threaded bushing and the washer consequently form a functional unit and relative movements between the two are avoided.

A structurally advantageous embodiment of the pivot bearing results if the disc is made of stainless steel. So-called Nirosta washers are standard items that meet the storage requirements are sufficient, especially with regard to the smoothness required on the bushing side, which is preserved in the long term, because there is no fear of corrosion.

To achieve that the pivot bearing also for adjustment the sash position on the frame in all horizontal Positions, the pivot bearing is designed so that the pivot pin is arranged eccentrically in the threaded bush is. A rotary adjustment of the threaded bushing over your Twist actuating flange then leads to the upper part depending on the position of the eccentric axis horizontally in the frame plane and adjusted perpendicular to it, so that a corresponding Distance adjustment is made.

Fig.1

eine teilweise geschnittene Seitenansicht eines Drehlagers,

Fig.1a

eine vergrößerte Darstellung des Drehlagerbereichs zwischen Oberteil und Unterteil auf einer Seite der Drehachse zur Erläuterung der Vertikalverstellung,

Fig.2

eine teilweise geschnittene Aufsicht auf das Drehlager der Fig.1,

Fig.3

eine vergrößerte Darstellung der Gewindebüchse des Drehlagers der Fig.1,

Fig.4

eine Aufsicht auf die Gewindebüchse der Fig.3

Fig.5

die Schnittdarstellung A-A gemäß Fig.3.

The invention is explained with reference to an embodiment shown in the drawing. It shows:

Fig.1

a partially sectioned side view of a pivot bearing,

1a

2 shows an enlarged representation of the pivot bearing area between the upper part and lower part on one side of the axis of rotation to explain the vertical adjustment,

Fig.2

2 shows a partially sectioned top view of the pivot bearing of FIG. 1,

Figure 3

2 shows an enlarged illustration of the threaded bush of the pivot bearing of FIG. 1,

Figure 4

a supervision of the threaded bushing of Fig.3

Figure 5

the sectional view AA according to Figure 3.

The pivot bearing shown in the drawing is a hinge 10. It has a top 11 and a bottom 12. Each Part 11, 12 has a fastening tab 11 ', 12' with which it is struck. The striking takes place on the upper part 11 a wing of the door and the lower part 12 on a fixed Frame of the door or on a door frame. The attachment is traditionally done by screwing onto the Attachment points 26.

So that the wing, not shown, is also relative to the frame not shown can be pivoted can, a pivot pin 13 is present, both in the Upper part 11, as well as engages in the lower part 12. In the lower part 12 there is a socket 20, which is made of friction-reducing Plastic is there when the pivot rotates 13 mitigates friction effects and to a sufficient extent is wear-resistant. The upper part 11 has an engagement hole for the upper end of the pivot 13, which dimensioned so far is that radially between the upper part 11 and the upper pivot end 13 'a threaded bush 14 can be arranged. The upper part 11, which is essentially sleeve-shaped is, the stud screw is mounted in a threaded bore 27 25 through an elongated hole 24 of the threaded bushing 14 is screwed against the pivot pin 13. A tip 25 'of Stud 25 engages in a correspondingly pointed one Notch groove 28 of the pivot pin 13 and thus secures it against unwanted axial displacements within the hinge 10th

The threaded bush 14 serves to support the upper part 11 on the lower part 12. For this purpose, the threaded bush 14 is included an external thread 17, which is in an internal thread 16 of the upper part 11 engages. Both threads 16, 17 are like this trained that the loads occurring with low specific Surface pressures are transmitted and sufficient easy rotation of the threaded sleeve 14 within the upper part 11 is possible. So that the hinge 10 both at Right hinged as well as left hinged can, is not only the lower end of the Upper part 11 shown engagement of the sleeve 14 possible but also an internal thread at the upper end of the engagement bore 18 16 available, into which the threaded bush 14 is screwed can be when the top 11 in the display plane was turned 180 degrees.

The threaded sleeve 14 extends with its upper part 14 'to the vicinity of the end of the upper end 13' of the pivot 13. This top 14 'takes about two thirds of the Total length of the threaded bush 14. The bottom third is the external thread 17 is present. The corresponding lower part 14 '' of the threaded sleeve 14 is also with a twist actuation flange 15 provided by the external thread 17 by a Freinut 19 is discontinued. The outside diameter of the twist actuator flange 15 is slightly larger than the outside diameter of the external thread 17, so that the threaded bushing 14 never screwed into the engagement bore 18 of the upper part 11 can be. The twist actuator flange 15 is provided with operating recesses 29 on its outer circumference, which are evenly spaced over the flange circumference are. They enable the intervention of an operating tool, for example a hook wrench. The hook wrench is so flat that it is in the actuation recesses 29 can be used with its hook, too if the top 11 of the bottom 12 as close as possible is arranged adjacent. One turn of the flange leads to the threaded sleeve 14 deeper into the engaging hole 18 of the upper part 11 is screwed in, or out of this, depending on the direction of rotation. Accordingly result there are different distances between the upper part 11 and the lower part 12, as shown in Fig.1a. The greatest possible Distance is designated 30, the smallest possible distance with 31. The associated position of the upper part 11 to the latter is shown in dash-dotted lines.

The threaded bush 14 is supported with its lower bush part 14 '' on the socket 20 of the lower part 12. The socket 20 has a radius extension 32 on the threaded bushing side on the one hand prevents the socket 20 from moving downward from the Lower part 12 can slip out and secondly ensures that the twist actuation flange 15 over the entire surface the socket 20 is to be supported.

The threaded bushing 14 is supported on the bushing 20 takes place via a smooth disc 21, which is made of stainless steel, for example from a stainless steel material. The disk diameter 21 'is practically the same size as the outside diameter 15 'of the twist actuating flange 15. Die Disk 21 is attached to the threaded bush 14. Serve for this two opposing fastening tabs 23. These are stamped in together with the disk 21 one plane and can be dash-dotted from the in Fig.5 position 33 shown by angling into the for example angled position shown in Figure 3 be bent up, namely into the inside of the threaded sleeve 14, corresponding to receiving the mounting tabs 23 has shaped recesses 34. In these recesses 34 the mounting tabs 23 are pressed so that the Washer 21 is firmly connected to the threaded bush 14. The Disk 21 has a smooth surface 22 on the socket side, with which the threaded bushing 14 can be moved relatively on the bushing 20 can when the wing of the window or door pivots becomes. There is no wear and tear in this area leads to impairment of functionality, in particular also does not affect the light Vertical adjustment of the threaded sleeve 14 within the upper part 11th

The threaded bushing 14 has a plurality of elongated holes 24 provided that are aligned vertically and in pairs are located one above the other in the upper part of the sleeve 14 '. One of the slots 24 serves to penetrate the stud 25, which with their tip 25 'engages in the notch groove 28. To adjust the depth of engagement of the threaded bushing 14 in the upper part 11 the stud 25 must be removed. After corresponding Rotation of the threaded bush 14 can the stud screw 25 screwed through the same slot or through another slot are so that the pivot 30 is held accordingly is. The distribution of the elongated holes 24 around the circumference the threaded sleeve 14 means that these are four different Can take angular positions. Relating to each other gripping thread 16.17 results in a sufficient fine adjustment of the threaded bushing 14 in vertical Direction.

It can be seen from FIGS. 4.5 that the Engagement bore 18 of the upper part 11 eccentrically to the outer circumference the threaded sleeve 14 is arranged. As a result the pivot 13 is arranged eccentrically in the threaded bush 14. With a rotation or angle adjustment of the threaded bush 14 accordingly the upper part is adjusted 11 perpendicular and / or parallel to the frame level, each by adjustment angle. Do you want to achieve that the horizontal Orientation of the wing does not change and still one vertical alignment is possible, so the threaded sleeve 14 can be adjusted by 360 degrees. If the threads 16, 17 are sufficiently smooth, for a total to be controlled vertical adjustment range from to Example 3 mm a sufficiently fine gradation, if usual Thread heights are used.

Claims (9)

1. Pivot bearing for doors or windows, in particular hinge plate (10), having an upper part (11), which is fixed to the leaf, and a fixed lower part (12), which parts can undergo relative pivoting about a pivot pin (13), and having a threaded bushing (14) which surrounds the pivot pin (13) and which is supported on the lower part (12) by way of a pivot actuating flange (15) and engages into the upper part (11) which has an internal thread (16) as a means for its relative vertical displacement with respect to the threaded bushing (14), into which internal thread the threaded bushing (14) engages by means of an external thread (17), characterised in that the threaded bushing (14) has vertically aligned longitudinal holes (24), and in that a stud bolt (25) of the upper part (11) is screwed through one of these longitudinal holes (24) against the pivot pin (13).
2. Pivot bearing as claimed in claim 1, characterised in that, at both ends of its engagement bore (18), the upper part (11) has an internal thread (16) for the threaded bushing (14).
3. Pivot bearing as claimed in claim 1 or 2, characterised in that between the external thread (17) of the threaded bushing (14) and the pivot actuating flange (15) an annular peripheral open groove (19) is provided.
4. Pivot bearing as claimed in any one of claims 1 to 3, characterised in that the pivot actuating flange (15) is supported over its full surface on a liner (20) of the lower part (12).
5. Pivot bearing as claimed in any one of claims I to 4, characterised in that the threaded bushing (14) consists of diecast material and/or is supported on the liner (20) of the lower part (12) by way of a disc (21) which is smooth over its whole surface on the liner side.
6. Pivot bearing as claimed in claim 5, characterised in that the disc diameter (21') of the disc (21) is practically as large as the outer diameter (15') of the pivot actuating flange (15).
7. Pivot bearing as claimed in claim 5 or 6, characterised in that, by means of attachment tabs (23), which are pressed into the threaded bushing (14), the disc (21) is attached to the threaded bushing.
8. Pivot bearing as claimed in any one of claims 5 to 7, characterised in that the disc (21) consists of special steel.
9. Pivot bearing as claimed in any one of claims 1 to 8, characterised in that the pivot pin (13) is disposed eccentrically in the threaded bushing (14).

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