DE102009025623A1 - Hinge band, has guide bearing bushes and reels connected in material-conclusive manner, where guide bearing bushes are locked at outer end of reels to form head end plate in reels - Google Patents

Abstract

The band has two band parts (10, 20) provided with reels (11, 12, 21), and a coupling pin (30) engaging through the reels. An axial sliding bearing is arranged between the reels and formed by bearing bushes (31, 32) and slip rings (33, 34). Guide bearing bushes (13, 14) and the reels are connected in a material-conclusive manner, and the guide bearing bushes are locked at an outer end of the reels to form a head end plate in the reels. The guide bearing bushes, a fail-safe socket (36), the bearing bushes and the coupling pin are made of corrosion resistant material.

Description

The The invention relates to a hinge with at least two band parts each with at least one roll of tape and with a the tape rolls by cross Coupling pin, wherein between two tape rolls an axial sliding bearing is arranged, which formed by a bearing bush and a sliding ring is, wherein the sliding ring is axially against the tape roll and against a guide bushing inserted into the roll of tape is supported.

Such a hinge is known from the US Pat. No. 3,499,183 A , From the US Pat. No. 3,390,419 and the US 4,561,147 It is also known to close the outer ends of the tape rolls with a cover plate.

Such hinges are known and may have two, three, four or more tape rolls, wherein on the band parts on the one hand, a so-called inner tabs and on the other hand, a so-called outer tabs are arranged for attachment on the one hand to a door and on the other hand on a door frame. Of course, in each case only the outer outer ends of the tape rolls are closed by cover plates, since otherwise the coupling pin passes through the tape rolls. A common solution is a three-piece hinge strap in which the strap part with the outer flap has two outer strap rollers and the strap part with the inner flap has a single, inner strap roller. Such a hinge is known for example from the DE 36 41 117 ,

It has been shown in these hinges that the Axial sliding bearing, which by a bearing bush and a sliding ring is formed and disposed between two tape rolls, a Heavy wear is subject to, since sometimes take high door weights are.

Farther is disadvantageous in the known hinges that these very many items such as reel, inserted in the reel Guide bushes and outside plugs consist.

The Task, which is the basis of the invention, therefore, is a generic Further develop hinge strap such that the thrust bearing a high Wear resistance and stability and a better wear behavior has and the construction and the assembly and manufacturing costs of Hinge is reduced.

These Task is inventively by a hinge solved according to claim 1. Further advantageous Embodiments of the invention are in the subclaims specified.

Especially advantageous in the hinge band having at least two band parts each with at least one roll of tape and one the tape rolls through-going coupling pin, wherein between two rolls of tape Axial sliding bearing is arranged, which by a bearing bush and a sliding ring is formed, wherein the sliding ring is axially against the tape roll and against a guide bushing inserted into the tape roll it is that the guide bush and the tape roll are materially interconnected and the guide bush at the outer end the tape roll is closed and outside a top plate forms in the roll of tape.

Thereby, that the sliding ring in the inventive Hinge belt axially against both the roll of tape and against a supported in the tape roll used guide bush, is the axial bearing surface of the slide ring very large, resulting in a correspondingly reduced surface pressure results. Due to the fact that the guide bush on the outside End of the tape roll is closed and outside one Headstock forms in the roll of tape, the manufacturing cost and the number of parts reduced. It is this component So a one-sided closed sleeve or even order a longitudinal bore having a bolt in the Inserted tape roll and connected to this cohesively becomes and thus at the same time an optically advantageous outside Completing the roll of tape forms.

at the components forming the axial sliding bearing are preferably around plastic parts. However, there are also other material pairings possible. The bearing is formed by a sliding ring and a bearing bush carrying this slip ring, which also may be annular. However, it is advantageous if the bush carrying the slip ring a the coupling pin encompassing tubular section-shaped part as well Having the slip ring bearing collar, as through this Design a high load-bearing capacity and stability of the axial sliding bearing results.

The Hinge tape according to the invention has a very simple construction and shows opposite the stand the technology has a significantly improved load capacity and Stability, combined with an increased service life in particular by a lower wear of the axial sliding bearing.

Preferably, it is a hinge band with an odd number of tape rolls, wherein the outer tape rolls of the first band part engage around at least one inner band roll of the second band part and wherein the hinge band from outside en considered to have a symmetrical structure. In this case, the outer band rolls of the first band part are closed by means of the guide bushes which are materially inserted into the band rolls and on the inside simultaneously form part of the axial bearing surface of the axial plain bearing.

Preferably are the guide bushes on the outside Ends of the tape rolls are welded to the tape rolls, d. H. welded into the tape rolls, in particular welded and sanded and / or polished. As a result, in particular using known methods for finishing such as grinding, brushing and / or polishing a visually appealing hinge band created become.

The Guide bush and the tape roll can be positively locked be connected to each other and form a press fit. hereby an anti-rotation is created, the particular rubbing and unpleasant squeaking noises during operation counteracts the hinge.

Preferably is the coupling pin relative to the second hinge part of the hinge freely rotatable.

Preferably are the coupling pin and at least one guide bush the first band part positively connected to each other. Particularly preferably, the coupling pin has at least one Part of the contact area between the guide bush of the first Band part and coupling pin on a knurling, so that this area an anti-rotation of the coupling pin opposite the first band part by a clamping fit in the guide bush forms. By knurling one after mounting in the guide bushing lying portion of the coupling pin has this area the surface of the coupling pin upgrades and oversizes so that here an effective and stable rotation between coupling pin and tape roll is created.

Especially It is thus possible by a non-positive Connection of coupling pin and guide bush as well cumulatively by the cohesive connection of guide bushing and outer reel relative to the coupling pin to fix the outer lobe and only a rotation of the Allow coupling pin relative to the inner lobes.

Prefers If the band parts and the guide bush are made of metal, in particular brass, stainless steel, iron or other alloys. This makes it possible, by a suitable choice of material the hinge strap to the respective requirements of carrying capacity and to adjust durability. It is also possible that the individual parts also consist of different materials can.

In In a preferred embodiment, the sliding ring has a in approximately rectangular cross section.

at the sliding ring and / or the bearing bush of the axial sliding bearing can these are plastic molded parts. The slip ring can on one side a minimum bevel, d. H. a deviation have a rectangular cross section to a leaching out from an injection mold to facilitate.

Preferably is the bearing bush frictionally in the inside Roll used. This results in a firmer and safer Hold the bearing bush for axial mounting of the slide ring.

Of the Sliding ring can be arranged by clamping on the coupling pin a corresponding selection of the dimensions and tolerances of Sliding ring inside diameter and coupling pin outside diameter. Alternatively, the sliding ring in a preferred embodiment be arranged freely movable on the coupling pin.

In an alternative embodiment, the sliding ring and the bearing bush formed such that a einclipsbare connection is formed, in particular by a circumferential tongue and groove connection and / or an undercut, so that the sliding ring axially supported becomes.

These Design serves to simplify the assembly of the hinge strap. After a final assembly of the hinge strap is characterized that on the outer belt rollers, the respective outer End with a cohesively connected to the tape roll Guide bush is closed, the hinge anyway no longer separable, and thus offers an improved in particular Burglary protection.

The Bearing bush can be made in one or more parts.

Preferably the hinge strap has at least one emergency bushing. These is in a three-piece hinge band, d. H. such a hinge, which has three tape rolls, assigned to the inner flap Ribbon arranged. In particular, the emergency bushing can be configured in this way be that this axially supports the bearing bush, so that an optimal introduction of force in the axial direction through the entire Ensures hinge band over several tape rolls away is to significantly improve the load capacity of the hinge strap to realize.

There Manufacturing tolerances are not arbitrarily minimized, the Guide bush in the axial direction preferably an undersize the roll of tape, d. H. a zero to minus tolerance the roll of tape.

Thereby that the guide bush have an undersize can, the slip ring is supported in the axial direction, d. H. parallel to the coupling pin, primarily against the tape roll from, under load, a flow of the material of the sliding ring occurs, so that the sliding ring after a certain period of operation both against the reel as then again against the opposite the tape roll supports shorter guide bush, d. H. that the axial bearing surface in its axial projection against the ideal of a zero tolerance between guide bushing and tape roll is not downsized.

It has surprisingly been found that the selection of a minus tolerance the axial length of the guide bush opposite the axial length of the roll of tape, d. H. that the greatest measure of Guide bush smaller or equal to the actual size the tape roll, respectively the axial length of the tape roll is clear in the creep behavior of the hinge strap under load Advantages over the other possible tolerance selection has, namely compared to the variant of the positive tolerance the axial length of the guide bush opposite the axial length of the roll of tape, d. H. that the guide bush in axial length compared to an excess having the tape roll in the axial direction.

The The terms undersize and minus tolerance thus relate on the slide ring-side end of the arrangement of tape roll and guide bush, d. H. that area of the roll of tape and the guide bush, which forms the axial support for the sliding ring.

in this connection is particularly advantageous that by the selected Tolerierung from guide bush to tape roll it continues to be guaranteed is that the sliding ring upon actuation of the hinge relative to the bushing and not relative to the outer band roll and / or guide bushing rotates, so that the ease of movement the hinge remains guaranteed.

In a preferred embodiment of the hinge strip has the bearing bush a rotation against the tape roll in particular, the bearing bush can form a positive connection having the tape roll.

One such a positive connection between the bearing bush and the roll of tape, in which the bearing bush is arranged, can also generated thereby be that a arranged on the bearing bush nose or a projection engages in a corresponding recess in the roll of tape, In particular, such a nose in the manufacturing technology related Insert tape roll slot.

alternative or cumulatively, the bearing bush can provide an anti-rotation have the coupling pin. Preferably, the bearing bush at least one radially inwardly projecting annular Paragraph or projection on, with the coupling pin a press fit forms, d. H. an anti-rotation between bearing bush and coupling pin forms.

By the arrangement of anti-rotation between the coupling pin or mandrel and a tape roll and guide bush and / or between the bushing and the tape roll of the hinge can the desired and advantageous relative movements between given the different components of the hinge band, d. H. allowed or prevented to one as possible to achieve a long service life of the hinge strap.

By an appropriate choice of guide bushing materials, Notlaufbuchse and bearing bush and the coupling pin can in particular an effective corrosion protection, in particular of the coupling pin be realized, d. H. Overall, the life of the hinge increase.

The Production of the two band parts is done by that accordingly cut or punched sheet metal parts partly by bending be deformed so that the one piece on the band parts Form formed tape rolls. Cutting out the sheet metal parts takes place preferably by means of laser cutting, which allows High-precision molded parts in a fast and automatable way to create. By bending a part of the precut Sheet metal parts to form the roll of tape forms a gap between the end of a roll of tape and the flat outer lobe. At the outside of the door hinge is worth striving for, that this gap is closed, d. H. is not visible not to the overall visual impression of the door hinge affect. This can be done when the guide bushing is welded on the outside with the tape roll.

One For example, avoiding or closing this gap also possible because of the preformed sheet metal part the place where the bent sheet forming the roll rests on the flat outer flap, beveled before bending is, for example, by pressing, grinding, punching or the like, so that the corresponding contour is already preformed.

alternative it is also possible the gap forming with a pin or fitting or the like to fill and in particular to be welded.

There the entire band part in particular in the field of welded Guide bushing following the welding process sanded and brushed and / or polished is thus a visually very advantageous overall design achievable.

Of the Reason to insert a guide bush in the roll of tape is that the material thickness of the tape roll through the bending process is limited, d. H. the material thickness is not arbitrarily changeable. For the band parts and thus also for the tape rolls used for example Stainless steel sheet with a thickness of 4 mm. In the rolled rolls of tape you put guide bushes with a wall thickness for example, 2 mm, so that a total of one wall thickness and thus a bearing thickness for the thrust bearing of 6 mm results. From an economic point of view would let However, a stainless steel sheet of 6 mm thickness is no longer on a Inner diameter of, for example, 10 mm for receiving the coupling pin deform.

to Simplification of the assembly of the various components are preferred Chamfers provided on individual or all parts, in particular at one or both ends of the coupling pin and on one side or on both sides inside and / or outside of the guide bushes. On the one hand, this allows the telescoping of the various components be facilitated if, for example, the coupling mandrel on both sides is chamfered, also can be a small gap for the weld be formed when the guide bush at least in the region has a chamfer, in which the cohesive Connection with the tape roll is generated.

alternative or cumulative to chamfers may be on individual components or Areas may also be provided with heels, which are the assembly facilitate the components.

One Embodiment of the invention is shown in the figure and will be explained in more detail below. It shows:

1 a sectional view of a hinge band according to the invention.

In 1 shown is a partially sectioned view of a hinge band with two band parts 10 and 20 with an outer flap on the first hinge part 10 and an inner tab on the second band part 20 , each having six holes for attachment to the door or door frame.

The two band parts 10 . 20 are formed by appropriately cut or punched sheet metal parts.

On the outer lobe 10 of the first band part 10 are integrally formed by appropriate bending of punched or cut sheet metal parts the outer rolls of tape 11 . 12 , the outside each by means of a welded guide bushing 13 . 14 are closed.

On the inner lobe 20 integrally formed is an inner tape roll 21 ,

The outer tape rolls 12 . 12 and the inner tape roll 21 the two band parts 10 . 20 be through a coupling pin 30 connected together so that the two band parts 10 . 20 around the axis of the coupling pin or mandrel 30 are mutually pivotable.

Between the rolls of tape 11 and 21 respectively. 12 and 21 Axial sliding bearings are arranged in the illustrated embodiment of the invention, by bearing bushes 31 . 32 as well as slip rings 33 . 34 are formed.

The bearing bushes 31 . 32 lie on the inner roll of tape 21 milled grooves and in turn wear the outside of the slip rings 33 . 34 ,

The slip rings 33 . 34 supported axially against the tape roll 11 . 12 as well as against in the tape rolls 11 . 12 used guide bushes 13 . 14 axially.

The guide bushes 13 . 14 are closed on the outside, ie that at the same time in one piece an outer end plate of the roll of tape 11 . 12 form, and are welded to the tape roll, so connected cohesively. This ensures optimal initiation of the axial force.

At the guide bushes 13 . 14 So it is a one-sided sealed sleeve or a longitudinal bore having a bolt in the roll of tape 11 . 12 is inserted and connected to this cohesively and thus at the same time on the outside an optically advantageous completion of the roll of tape 11 . 12 forms.

The coupling pin has a knurling 35 in the contact area with the upper guide bush 13 on. This by the knurling 35 the bolt caused Aufwerfungen in the surface of the coupling pin 30 form a clamping seat and thus an anti-rotation with the guide bushing 13 , As a result, a relative rotation of the bolt 30 opposite upper guide bush 13 and thus also opposite to the first band part 10 prevented.

The slip rings 33 . 34 have a rectangular cross section.

bearing bush 31 . 32 and plain bearing ring 33 . 33 Made of plastic with optimized sliding properties, to ensure a smooth running of the hinge.

In the roll of tape 21 of the inner lobe 20 is used an emergency stop 36 which, even in the case of fire, ensures that the hinge remains viable, even if plastic parts of the hinge should deform or melt as a result of prolonged exposure to heat.

In an alternative embodiment of the invention, not shown, the emergency bushing 36 dimensioned such that these are the bearing bushes 31 . 32 the axial sliding bearing is supported in the axial direction, so that an optimal introduction of force is ensured in the axial direction, with an increased load capacity of the hinge strap.

The production of the in 1 Accordingly, the hinge strip is carried out in the following steps: First, the band parts 10 and 20 punched or cut from sheet metal and then the rolls of tape 11 . 12 on the first band part 10 respectively the tape roll 21 bent at the second band part. In a next step, the cutouts into which the bushings 31 . 32 be inserted into the roll of tape 21 of the inner lobe 20 incorporated. Then first the emergency stop 36 inserted into the tape roll of the inner lobe and then the Axialgleitlager, consisting of the bearing bushes 31 . 32 and the slip rings 33 . 34 in the roll of tape 21 of the inner lobe 2 used. In the lower roll of tape 12 of the outer lobe 10 becomes the bottom one. guide bush 14 used and outside with the tape roll 12 welded.

The upper guide bush 13 and the coupling pin 30 are pre-assembled in the upper roll of tape 11 inserted. Previously, the two band parts 10 . 20 aligned with each other so that the coupling pin 30 at this insertion of the internal tape roll after assembly 21 of the second band part 20 as well as the inner band roll 21 pre-assembled emergency bushing and the bearing parts 31 . 32 . 33 . 34 be upheld. In this state, therefore, the band parts 10 and 20 aligned in the way that the rolls of tape 11 . 21 . 12 the two band parts 10 and 20 axially aligned so that the mandrel 30 can be inserted axially and thus acts as a coupling pin.

Last is then at the upper band part 11 end of the guide bush 13 with the outer, outer end of the upper roll of tape 11 welded.

10

first band part

11

tape roll

12

tape roll

13

Upper guide bush

14

Lower guide bush

20

second band part

21

tape roll

30

coupling pin

31

plain bearing bush

32

plain bearing bush

33

plain bearing ring

34

plain bearing ring

35

knurling

36

Notlaufbuchse

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• US 3,499,183 A [0002]
• - US 3390419 A [0002]
• US 4561147 [0002]
• - DE 3641117 [0003]

Claims (16)

Hinge strap comprising at least two strap parts ( 10 . 20 ) each with at least one roll of tape ( 11 . 12 . 21 ) and with one the tape rolls ( 11 . 12 . 21 ) thorough coupling pin ( 30 ), whereby between two rolls of tape ( 11 . 12 . 21 ) an axial sliding bearing is arranged, which by a bearing bush ( 31 . 32 ) and a sliding ring ( 33 . 34 ) is formed, wherein the sliding ring ( 33 . 34 ) axially against the tape roll ( 11 . 12 ) and against one in the roll of tape ( 11 . 12 ) inserted guide bush ( 13 . 14 ), characterized in that the guide bushing ( 13 . 14 ) and the roll of tape ( 11 . 12 ) are materially interconnected and the guide bush ( 13 . 14 ) at the outer end of the roll of tape ( 11 . 12 ) is closed and outside a top plate in the roll of tape ( 11 . 12 ). Hinge strap according to claim 1, characterized in that it is a hinged belt with an odd number of belt rollers ( 11 . 12 . 21 ), wherein the outer tape rolls ( 11 . 12 ) of the first band part at least one tape roll ( 21 ) of the second band part ( 20 ) and wherein the hinge strip viewed from the outside has a symmetrical structure. Hinge strap according to claim 1 or 2, characterized in that the guide bushes / n ( 13 . 14 ) at the outer end (s) of the roll of tape (s) ( 11 . 12 ) with the tape roll (s) ( 11 . 12 ) is / are welded, in particular welded and ground and / or polished / are. Hinge strap according to one of the preceding claims, characterized in that the guide bush ( 13 . 14 ) and the roll of tape ( 11 . 12 ) are positively connected with each other and form a clamping fit. Hinge strap according to one of the preceding claims, characterized in that the coupling pin ( 30 ) relative to the second band part ( 20 ) of the hinge strip is freely rotatable. Hinge strap according to one of the preceding claims, characterized in that the coupling pin ( 30 ) and a guide bush ( 13 . 14 ) of the first band part ( 10 ) are positively connected with each other. Hinge strap according to one of the preceding claims, characterized in that the coupling pin ( 30 ) at least in a part of the contact area between a guide bush ( 13 ) of the first band part ( 10 ) and the coupling pin ( 30 ) a knurling ( 35 ), so that this area an anti-rotation of the coupling pin ( 30 ) compared to the first. Band part ( 10 ) by a clamping seat in the guide bush ( 13 ). Hinge strap according to one of the preceding claims, characterized in that the strap parts ( 10 . 20 ) and the guide bush ( 13 . 14 ) consist of metal, in particular brass, stainless steel, iron or other alloys, in particular that the band parts ( 10 . 20 ) and the guide bush ( 13 . 14 ) consist of the same metal. Hinge strap according to one of the preceding claims, characterized in that the sliding ring ( 33 . 34 ) has an approximately rectangular cross-section. Hinge strap according to one of the preceding claims, characterized in that the bearing bush ( 31 . 32 ) frictionally in the inside tape roll ( 21 ) is used. Hinge strap according to one of the preceding claims, characterized in that the sliding ring ( 33 . 34 ) clamped or freely movable on the coupling pin ( 30 ) forms a clamping seat. Hinge strap according to one of claims 1 to 10, characterized in that the sliding ring ( 33 . 34 ) and the bearing bush ( 31 . 32 ) are formed such that a einclipsbare connection is formed, so that the sliding ring ( 33 . 34 ) is held axially, in particular that a circumferential tongue and groove connection and / or an undercut is formed. Hinge strap according to one of the preceding claims, characterized in that the hinge strap at least one emergency bushing ( 36 ), in particular that the emergency bushing ( 36 ) the bushing ( 31 . 32 ) is axially supported. Hinge strap according to one of the preceding claims, characterized in that the axial length of the guide bushing ( 13 . 14 ) opposite the roll of tape ( 11 . 12 ) in the direction of the sliding ring ( 33 . 34 ) has an undersize. Hinge strap according to one of the preceding claims, characterized in that the bearing bush ( 31 . 32 ) an anti-rotation against the tape roll ( 21 ), in particular that the bearing bush ( 31 . 32 ) a positive connection with the roll of tape ( 21 ), in particular that one on the bearing bush ( 31 . 32 ) arranged projection in a corresponding recess in a roll of tape ( 21 ) intervenes. Hinge strap according to one of the preceding claims, characterized in that the bearing bush ( 31 . 32 ) has a rotation against the coupling pin, wherein the bearings rifle ( 31 . 32 ) in particular has at least one radially inwardly projecting annular shoulder or projection, which with the coupling pin ( 30 ) forms a clamping seat.