EP0869248B1 - Screw-on hinge for profiles with undercut grooves - Google Patents

Description

TECHNICAL AREA

The invention relates to a screw-on hinge for with undercut grooves provided profiles, consisting of a first and a second hinge leaf, the pivotally connected to each other by means of an articulated pin and the recessed ones Breakthroughs for receiving fastening screws are provided, which in the Profile grooves introduced profile stones are suitable to take, each Hinge leaf preferably only a single opening for only one Fastening screw and a recess for one of the fastening screw has penetrated fixing part, of which (at least) one in the profile groove protruding approach protrudes, the approaches have a width (B) that represents approximately the width (b) of the profile grooves.

STATE OF THE ART

Such a screw-on hinge is already known from AT 384 269 B.

In a catalog from Mannesmann Demag Fördertechnik, "assembly profile construction kit, Profiles, connectors, accessories, tools, 1995 ", published in December 1995, see page 58, hinges are shown, two each Have openings in each hinge leaf, and each have different leaf lengths may also have the catalog page 34, where representations of so-called Find hammerhead nuts that allow the individual assembly of attachments Allow aluminum profiles. Hammer head nuts can be retrofitted into the groove inserted and removed. By screwing the nut into the Clamping position rotated. Under the order no. 110.215.99 also becomes a sliding block offered, such slot nuts allow attachments to the To assemble aluminum profiles individually. Such a sliding block can be installed can only be inserted into the groove on one side. The unscrewed has in vertical grooves However, the sliding block does not hold. The screwed sliding block enables one positive connection between attachment and profile. Such sliding blocks serve mainly securing the position and centering and / or fastening Attachments.

In a catalog with the designation "ALTRATEC", 1.0.1., Product overview, is listed under number 1.6.1. - 1.6.4. a similar hinge shown. Either insert nuts or serve to fasten the hinge parts Spring nuts, see catalog sheet 1.2.10, T-screws or hammer head nuts, see catalog sheet 1.2.9, while catalog sheet 1.5.9 the hinge with it attached profiles reproduces.

Finally, let's refer to a Bosch catalog "Mechanics basic elements" referenced, which apparently dates from 1993 and on sheet 1-3 shows a hammer nut, which in connection with an aluminum profile Fastening of hinges is used, which can be detached according to catalog sheet 4-13. In this case, the hinge has an opening arrangement, which consists of two countersunk perforations that merge into one another. Between A plastic base is placed on the aluminum profile and hinge leaf. On Sheet 4-12 shows a hinge made up of two sheets, each with one There is a breakthrough for receiving a countersunk screw that is screwed into a profile block can be, the individual leaves each having four depressions, which are used to hold guide pins. This is to ensure that Hinge does not twist on the profile, which is due to the fact that only with one single screw attachment would be possible in principle.

The main problem with such known hinges is the need to go through Arrangement of at least two openings per hinge leaf and one appropriate number of mounting screws to ensure that the Hinge leaf cannot rotate with respect to the profile to which it is attached, or alternatively to achieve this protection against rotation by additional fixing pins that it however, make the sheet necessary for the breakthrough for the Fixing screw to be provided with further depressions into which the fixing pins can be inserted.

A disadvantage of the hinges in the catalog displays is the need for either two fastening screws per hinge leaf, or the arrangement of additional fixing pins, which are in corresponding depressions in the hinge leaf must be introduced.

These measures are complex to manufacture and assemble and can, if z. B. forgotten locating pins, cause the anti-rotation lock no longer is effective.

In the prior art according to AT 384 269 B, one of them serves as a sliding block in one Profile 1 used nut 3 protruding rib 6 to align the hinge 7, in that it forms two longitudinal webs 8 which engage around the rib 6. The arrangement is like this met that both the rib 6 projecting from the mother as well as her encompassing longitudinal webs within the part of the undercut that is open to the outside Groove must be accommodated, which means that this open slot has a large Part of the profile width takes up what can visually disturb that The risk of contamination increases, the strength is impaired and also the use narrower profiles.

OBJECT OF THE INVENTION

The object of the invention is to provide a screw-on hinge arrangement mentioned type in such a way that the need for more than one Fastening screw per hinge leaf is omitted, but still a twist fixation is made possible without increasing the relative slot width of the profile and thus associated disadvantages would have to be accepted.

Furthermore, the mounting options are to be expanded, in particular should an embodiment may be possible, the same for longitudinal and transverse attachment the hinge cloth on the profile is suitable.

EMBODIMENTS FOR SOLVING THE OBJECT OF THE INVENTION

The problem is solved in that the fixing part has two approaches that are offset by 180 ° with respect to the fastening screw axis.

This measure on the one hand ensures that the width of the visible Slot of the undercut groove in the profile can be kept smaller, so z. B. need not be larger than the shaft diameter of the fastening screw required anyway. This eliminates the disadvantages described above. There is an advantage also a particularly secure fixation and versatility of use, this due to the axial symmetry.

According to a development of the invention (claim 2), the hinge is in the area of the opening for the fastening screw with a depression that for Includes the web portion of the fixing part carrying the approaches. To this In this way, a more compact design is achieved, as is a favorable adaptation of individual related parts.

According to yet another embodiment of the invention (claim 3) that is Hinge in the area of its opening with a depression for receiving the Bridge part and also provided with depressions to accommodate the approaches. This also serves for greater compactness and more precise adjustment and alignment of the individual parts to each other.

The fixing part can carry two lugs (pairs of lugs) at the web ends, which are symmetrical with respect to the web plane (claim 4). This increases flexibility assembly. Regarding the sliding block, it should be said that it is favorable if as A four-sided truncated pyramid is used, the base of which is one in the undercut lumen of the groove area recordable width and preferably has greater length, which increases the stability of the arrangement (claim 6).

It is also beneficial if from the base at the ends of this greater length Approaches begin, the distance and shape of which of the depressions of the Hinge leaf correspond (claim 7). This adds flexibility to the arrangement still increased.

From the base of the sliding block, a web can protrude that carries the shoulders and which has a width which fits into the not undercut part of the groove (Claim 8). This increases the accuracy of the guidance.

BRIEF DESCRIPTION OF THE INVENTION

The invention is explained in more detail below on the basis of exemplary embodiments, which are shown in the drawings.

Fig. 1

in einer entlang der Scharnierachse gerichteten Ansicht ein erfindungsgemäß ausgestaltetes Scharnier, das mit zwei parallel zueinander liegenden Profilen verbunden ist;

Fig. 2

eine Ansicht von unten auf die Anordnung gemäß Fig. 1;

Fig. 3

eine Ansicht ähnlich der Fig. 2, wobei jedoch die beiden Profile zueinander senkrecht angeordnet sind;

Fig. 4A, 4B und 4C

in drei verschiedenen Ansichten das erfindungsgemäß ausgestaltete Fixierungsteil;

Fig. 5A, 5B und 5C

in drei verschiedenen Ansichten einen geeigneten Profilstein;

Fig. 6

den in den Fig. 1, 2 oder 3 verwendeten Scharnierstift ;

Fig. 7A, 7B und 7C

in drei verschiedenen Ansichten das bei dem Scharnier gemäß den Fig. 1, 2 und 3 zweifach verwendete Scharnierblatt; und

Fig. 8A, 8B und 8C

in drei verschiedene Ansichten einen speziell an das erfindungsgemäße Scharnier angepaßten Profilstein.

It shows:

Fig. 1

in a view directed along the hinge axis, a hinge designed according to the invention, which is connected to two profiles lying parallel to one another;

Fig. 2

a bottom view of the arrangement of FIG. 1;

Fig. 3

a view similar to Figure 2, however, the two profiles are arranged perpendicular to each other.

Figures 4A, 4B and 4C

in three different views the fixing part designed according to the invention;

5A, 5B and 5C

a suitable profiled stone in three different views;

Fig. 6

the hinge pin used in Figures 1, 2 or 3;

Figures 7A, 7B and 7C

in three different views the hinge sheet used twice in the hinge according to Figures 1, 2 and 3; and

Figures 8A, 8B and 8C

in three different views a profiled stone specially adapted to the hinge according to the invention.

BEST WAYS OF CARRYING OUT THE INVENTION

In Fig. 1, two are parallel in cross-section adjacent aluminum profiles 12, 14 are shown, which here is essentially a square cross-sectional profile and on each of the four sides of the square each have an undercut groove 16. The Profile can further cavities 18 in a conventional manner have to save material.

The axially adjacent two profiles 14, 16 are with the help of a screw hinge 10 connected that one profile 14 with respect to the other Profile 16 can be pivoted about the hinge axis 20, see arrow direction 22 in FIG. 1.

As can also be seen from FIG. 2, this hinge 10 from a first, 24, and a second hinge leaf 26, which is shown by means of a side view in FIG Hinge pin 28 pivotable about the hinge axis 20 are interconnected. The hinge leaf 24 as well as the hinge leaf 26, each with a recessed Breakthrough 30, see FIGS. 7A, 7B and 7C, provided by which breakthrough 30 a fastening screw provided with a countersunk head 32 is inserted, which in one Profile stone 34 is recordable, which profile stone 34 in turn in the undercut part of the groove 16 of the Profile 12 or 14 is added to the hinge leaf 24 or 26 is aligned. The hinge leaf 24, the has the same shape as the hinge leaf 26 is in the 7A, 7B and 7C shown in more detail. The Hinge leaf 24 includes a mounting tab 38 and a hinge pin extension 40, which extends over one longitudinal half of the mounting tab 38 extends and a blind hole 42, in which the hinge pin shown in Fig. 6 28 with its corrugated end 44 in a press fit or with its smooth end 46 fits exactly or with little play each recorded slightly less than half can be, as shown in FIGS. 2 and 3 in dashed lines make it clear.

Aligned to the bisector 48, at which the Hinge pin extension 40 with its open blind hole end of the Blind hole 42 ends, there is a bore 30 with a depression 50, which depression 50 is designed so that it can fully accommodate the head of a fastening screw 32, so that the head surface opposite the top 54 of the Hinge leaf does not protrude. By making this top 54 otherwise through the axis 20 of the hinge axis bore 42 passes through or slightly with respect to the 7B above it, it is possible to pivot sheet 24 or sheet 26 by 180 °, as the arrow 22 in Fig. 1 indicates, without the surface 54 of the two hinge leaves or the one therein countersunk screw heads this pivoting movement before reaching of the 180 ° angle would limit.

The bottom 56 parallel to the top 54 forms the bottom Contact surface with which the hinge leaf 24 or 26 on the each matching side surface 58 of the profile 12 or 14 rests. To ensure a full and precisely aligned support enable, is to the surface 56 of the tab 38th adjoining area 60 of the hinge pin shoulder 40 somewhat reset so that there is a very small distance between this surface 60 and the bearing surface 58 of the profile 12 or 14 forms. Slight burr residues, faults and dirt can therefore not lead to canting.

Recessing from this underside 56 is one for the breakthrough 30 recess arrangement for the fastening screw lying around 36 can be seen in the one in FIGS. 4A, 4B and 4C shown in different views Fixing part 62 in two mutually offset by 90 ° Positions can be used optionally. 3 shows dashed these two options: In the case of Fig. 3 the hinge leaf 124 that can be seen lies the fixing part 62 with its longer extension parallel to the hinge axis 20 and thus also parallel to the groove 16 of the profile 112, while the hinge leaf 126 the fixing part 62 in one Position taken perpendicular to the hinge axis 20 has, here parallel to the groove 16 of the profile 114th sense this 90 ° displaceable arrangement is the fixing part 62 each aligned to the groove 16, and in such a way that one formed by the fixing part 62 Approach 64 (or 164, or 264, or 364) over the bottom 56 of the hinge leaf 24 or 26 projecting into the respective Groove 16 extends into it. For this purpose the width is B the approach 64 of the hole 164 (or 264 or 364) chosen so that they just added to the width B of the groove 16 can be. This results in an essentially backlash-free Inclusion of approach 64 (or one of the other approaches 164, 264, 364, depending on the position of the component) in the groove 16. Since the component 62 on the other hand so in the order Screw opening 30 is arranged around recess 36 is that here is essentially one too results in play-free storage, this leads to an alignment and fixing not only the component 62, but also the this component 62 receiving hinge leaf 24, 26 or 124, 126 each with respect to the associated groove 16, whereby turn in alignment with the opening 30 of the Hinge sheet with respect to the groove and in this groove arranged screw receiving device, such as profiled stone 5A, 5B or 5C results. The component 62 thus has two functions: on the one hand, it facilitates assembly, in which it the opening 30 of the hinge leaf 26 with respect to Groove 16 aligns at least in one direction so that Introduce a mounting screw 32 in the first Breakthrough 30, then through the component 62 into one Thread, for example, of that in FIGS. 5A, 5B and 5C shown profiled stone 34 is formed. The profile stone 34 must therefore with its thread 68 so far in the groove 16th be moved until the thread 68 to the axis of the Screw 32 is aligned, whereupon screw 32 is screwed in and can be tightened. As a further effect Component 62 after tightening the screw 32 a rotation lock of the sheet 24 or 26 with respect to the respective Groove 16, so that in fact on another fastening screw 32 can be dispensed with, as is the case with many Embodiments of the prior art for obtaining a Rotary lock was necessary.

In itself, an approach 64 is sufficient to achieve the desired To achieve effects to a certain extent. Because by only a projection 64, which is off the axis of the screw 32 lies, the alignment and fixation already mentioned reached. However, these effects will improve if a second approach 164 symmetrical to the first approach 40 is arranged, preferably symmetrically to that Axis of the fastening screw 32. This doubles the absorbable torsional forces and the arrangement will also advantageously axially symmetrical. Even greater benefits arise when a further symmetry is created the approaches 64, 164 further approaches 364, 264 opposite, so it doesn't matter how around this component 62 inserted into the recess arrangement 36 becomes.

As can be clearly seen in FIGS. 4A, 4B and 4C, these are Lugs 64, 164 connected to one another by a web part 66, which web part 66 has a round opening 70 in the middle has, which is designed so that the fastening screw 32 can be inserted through it. This web 66 is in the embodiment shown in FIGS. 4A to 4C relatively thin, since it is only relatively weakly loaded there is due to the fact that he only take on managerial tasks must, while those carried by him at the ends Approaches 64, 364 and 164, 264 the actual ones Fixation tasks against unwanted rotation of the Carry out hinge tabs 26 with respect to the profile grooves 16. Therefore, the depression used to receive the web 66 can 72 remain relatively flat, as Fig. 7B shows, which is the advantage has that material that is used to accommodate the screw countersink 50 available on the opposite surface 54 stands, which increases the strength properties the arrangement increased. The for those at the ends of the Web 56 arranged approaches 364, 264 provided depressions 74, 76 are deeper, see again Fig. 7B, these indentations outside the indentation area 50 for the screw head, again in the sense an increase in the stability of the overall arrangement.

As can be seen in FIG. 7C, it is not only the two depressions 74, 76, connected by the web 72, present, but perpendicular to it the further depressions 78, 80, again connected by a web area 72. This "Cross shape" enables the option already described Arrangement of the fixing part 62 either parallel to Hinge axis or perpendicular to it. In both positions the web 66 is fully received in the depression 72 for this web, so that the web over surface 56 as shown in FIG. 7B does not protrude. Only approaches 64, 164 remain prominent, that protrude from the web 66.

The web is expediently not simply a straight one Strip, but has two extensions 82, 84, which in the corresponding areas of the depression 72 for the web can be appropriately recorded. This has the advantage that around the opening 75, which is formed in the web 66, again more material is available and the arrangement thereby becomes more stable and that the fixing part is secure is held between the profile and the hinge leaf.

In the normal embodiment you become a sliding block choose as shown in Figs. 5A, 5B and 5C in three different views is shown. It is about here around a four-sided truncated pyramid, the base of which 86 one in the undercut lumen 88 of the groove surface has recordable width 92. The footprint 86 preferably has a larger width than 92 Length 90, so that a largely tilt-free displacement option inside the groove during insertion of the Profile stone is made possible in this groove. The pyramid shape has the advantage that it introduces this pyramid-shaped Body in the groove ends relieved.

8A, 8B and 8C is in three different views to recognize a modified slot nut arrangement 134 in which from the base surface 186 of the pyramidal body 185 web-shaped approach 166 starts from which at its ends Project approaches 464, 564. The threaded hole 168 penetrates thus here both the pyramid part 185 and that adjoining web part 166. Web part 166 has one such extension starting from the base area 186 of the Pyramid part 185 in the direction of the axis of the bore 168 that its height is approximately taken up by the narrower part of the groove 16 is, d. that is, the thickness 94 in Fig. 8A is approximate is equal to the strength 96 in Fig. 1, that is the strength of the Groove 16 narrowing nose. Furthermore, the web 166 has one Width that is equal to or approximately equal to the width B according to Fig. 4C is, in turn, fitting into the groove width b of the groove 16 can be included. The protruding from the web 166 Lugs 464, 564 have no greater width and are sufficient thus through the groove outwards and jump over the Surface 58 of the profile and so far penetrate that of the hinge leaf 26 or 24 mounted above this point formed recesses 74, 76 or 78, 80 a. Corresponding is the height of these approaches chosen so that they just in the Returns 74, 76, 78, 80 can be included if the hinge leaves 24, 26 are mounted. So replaced the modified profile block shown in FIGS. 8A, 8B, 8C the fixing part 62 and advantageously takes over not just the alignment perpendicular to the course of the groove 14, but also parallel to this course, so that here one particularly good and simple assembly is made possible.

In the last-mentioned embodiment, one is thus to the Profile as well as slot nut adapted to the hinge are provided, so that a system unit results from Profile, hinge leaf and profile stone with associated Fastening screw is formed.

INDUSTRIAL APPLICABILITY

The invention is e.g. B. in control cabinet construction commercially evaluable.

Claims (9)

1. Screw-on hinge (10) for profiles (12, 14) with undercut grooves (16) comprising a first (24) and a second hinge leaf (26) which are pivotably connected to one another by means of an hinge pin (28) and which are provided with countersunk openings (30) for receiving attachment screws (32) which can be screwed into profile blocks (34, 134) introduced into the profile grooves (16) with a good fit, with each hinge leaf (24, 26) preferably having only a single opening (30) respectively for only one attachment screw (32) respectively as well as a recess (36) for a fixing part (62; 134) penetrated by the attachment screw (32), from which (at least) one projection (64, 164, 264, 364; 464, 564) extending into the profile groove (16) projects, with the projections (64, 164, 264, 364; 464, 564) having a width (B) which approximately forms the width (b) of the profile grooves, characterised in that the fixing part (62; 134) has two projections (64, 164; 464, 564) which are offset from one another by 180° with respect to the axis of the attachment screw.
2. Screw-on hinge as claimed in Claim 1, characterised in that the hinge (10) in the area of the opening (30) for the attachment screw (32) has a depression (72) for receiving the crosspiece part (66, 166) of the fixing part (62, 134), which supports the projections (64, 164, 264, 364).
3. Screw-on hinge as claimed in Claim 2, characterised in that, in addition to the depression (72) for receiving the crosspiece part (66), the hinge leaf (24, 26) has further depressions (74, 76, 78, 80) for receiving the projections (64, 164, 264, 364; 464, 564) in the area of its opening (30).
4. Screw-on hinge as claimed in Claim 3, characterised in that the fixing part (62; 134) has pairs of projections (64, 364; 164, 264) at the crosspiece ends, respectively, which are located symmetrically with respect to the plane of the crosspiece.
5. Screw-on hinge as claimed in any one of Claims 1 to 4, characterised in that the hinge plate (24, 26) has four depressions (74, 76, 78, 80) for the projections (64, 164; 364, 264; 464, 564), which are each offset by 90° with respect to the axes of the openings, in the area of the opening (30).
6. Screw-on hinge as claimed in any one of Claims 1 to 5, characterised in that a four-sided truncated pyramid (85, 185) is used as a tenon block, the base (86, 186) of which four-sided truncated pyramid has a width (92) that can be received in the undercut internal diameters of the groove surface and a preferably greater length (90).
7. Screw-on hinge as claimed in Claim 6, characterised in that projections (464, 564) project from the base of the tenon block at the longer ends thereof, the mutual position and form of said projections corresponding to those of the depressions (74, 76; 78, 80) of the hinge leaf (24, 26).
8. Screw-on hinge as claimed in Claim 6 or 7, characterised in that a crosspiece (166) extends from the base (186) of the profile block (134), which supports the projections (464, 564) and which has a width (B) which can be received with a good fit in the non-undercut part of the groove (16).
9. Screw-on hinge as claimed in any one of Claims 6 to 8, characterised in that a collar (98) extends from the base (186) or from the crosspiece (166) in the area of the thread (168) for the attachment screw of the profile block, the height of said collar being selected such that it extends into the crosspiece depression (72) of the hinge leaf (24, 26).

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