DE102018117806A1 - Attachment system for securing an item to a carrier - Google Patents

Abstract

The invention relates to a fastening system for fastening an object to a support, in particular a support wall, comprising a dowel insertable into the carrier, in which a fastening bolt is screwed, wherein a support member is provided for supporting the article whose outer contour upon rotation of the support member to a longitudinal axis performs a stroke, and wherein retaining means are provided for holding the support member in different rotational positions.

Description

The invention relates to a fastening system for fastening an object to a support, in particular a support wall, comprising a dowel insertable into the support into which a fastening bolt can be screwed.

With such mounting systems, for example, picture frames are attached to inner walls of buildings. The dowel is inserted into a bore of the inner wall and the fastening bolt, which may for example be a bolt, is screwed into the dowel. In this case, the fastening bolt remains with its bolt head with a certain distance from the inner wall, so that for example a picture frame can be hung with a holding section on the bolt head.

In particular, if an object is to be fastened to a carrier by means of a plurality of such fastening systems, there is often the desire to be able to make a height adjustment after screwing in the fastening bolts. For example, it is often difficult for private users to align the drill holes and thus the dowels and the fastening bolts exactly horizontally. A lateral adjustment is possible in some embodiments by moving the object with its holding means on the mounting bolt.

For height adjustment is in DE 10 2010 060 618 A1 proposed a screw with an oval screw head. Depending on the rotational position of the screw has the outer contour of the screw head, which carries a subject to be suspended, a different height. A disadvantage of the known screw is in addition to a small adjustment, however, in particular the risk of heavy objects that the screw rotates back by the weight of the suspended object in a rotational position in which the outer contour has a lower height.

Furthermore, from the DE 10 2010 060 618 A1 a screw is known in which the screw head has an eccentric to the longitudinal axis of the screw arranged cam portion, which in turn forms depending on the angular position of the screw with its outer contour a different height bearing surface. This embodiment also has, in addition to a small adjustment range, a high instability of certain angles of rotation, in particular in the case of heavy objects to be suspended. Another example of a height adjustment using an eccentric is off DE 20 2014 100 230 U1 known. This is also subject to the disadvantages mentioned.

Another problem of the known screws occurs in the initially explained lateral adjustment by moving the object on the screw heads. This can lead to a twisting of the screw, in particular in the case of heavy objects, as a result of which the height position is undesirably changed.

Using only one fixing screw and one dowel also leads to instabilities. So it comes regularly at an accidental contact with the suspended object to an undesirable change in the position of the object, which then has to be laboriously realigned.

Further fastening measures, such as further drill holes, the use of adhesive tape for fixation or thorns on the object to be suspended or the holding means are regularly undesirable because they lead beyond the one or two holes required for hanging to further damage to the carrier, such as an inner wall , Especially with a frequent change of hanging objects, as is common in galleries, but also in the hotel industry, the catering or the upscale retail regularly, this is undesirable.

In also known beveled holding means on the left and right outer edge on the back of picture frames an adjustment and conditional fixation of the position are indeed possible. However, a subsequent lateral adjustment after suspension is no longer possible. In addition, at least two attachment points to the carrier are mandatory here as well.

Other fastening systems, such as adjustable adhesive hangers, are inadequate for many applications in terms of load capacity compared to fastening bolts anchored in the support by means of dowels. In addition, a lateral position adjustment is also regularly not possible here.

Especially when several objects, for example picture frames, are to be suspended in relative proximity next to or below each other, a subsequent, variable setting of the positioning would also be of great advantage, even with attachment by means of just one attachment point. Even with a fastening by two attachment points, a reliable adjustment of the position in the vertical and in the horizontal direction would be helpful. Such adjustments would also result in significant time and cost savings as less effort would be required to accurately align wellbores.

Based on the explained prior art, the present invention seeks to provide a fastening system of the type mentioned above, which allows for high load capacity in a simple and reliable way an effective height adjustment of a subject to be suspended, with a lateral adjustment of the position of the object without impairment the height adjustment should be possible.

The invention achieves the object by the subject matter of claim 1. Advantageous embodiments can be found in the dependent claims, the description and the figures.

For a fastening system of the type mentioned, the invention solves the problem in that a support member is provided for supporting the article whose outer contour performs a stroke upon rotation of the support member about a longitudinal axis, and that retaining means are provided for holding the support member in different rotational positions ,

For example, the support may be a support wall of a building, such as an interior wall of a building. The object to be attached may be, for example, a picture frame, a frameless picture (photo, print or painting), a tenter, a mirror frame or a frameless mirror. Also, the article may be part of a shelving system to be suspended on a carrier.

The fastening system comprises a dowel which can be inserted into the carrier, in particular into a bore introduced into the carrier. The dowel may have anchoring means in a manner known per se, for example elastic retaining arms which secure the dowel against being pulled out of the bore. The dowel is usually held against rotation in the bore of the carrier. In the dowel, a fastening bolt, such as a bolt, used, for example, screwed, whereby the dowel is spread and held in the spread state non-positively and / or positively in the bore. As a result, the fastening bolt is held on the carrier. The dowel may for example consist partially or completely of a plastic. The fastening system according to the invention may also comprise the fastening bolt.

Furthermore, the system according to the invention comprises a support element, which is designed to carry the object with its outer contour. The support member may be a separately formed from the dowel and the fastening bolt element. However, it can be part of the fastening bolt or the dowel. The support element can be fastened, for example, via the fastening bolt to the dowel and thus to the support, for example the support wall. The object to be fastened to the carrier may have holding means with which the object is held on the carrier element. For example, the object may have a holding section, for example a step-like holding section, with which it rests in the suspended state on the outer contour of the carrier element and is thus held on the carrier element and thus on the carrier. The support member may consist of a plastic in manufacturing technology simple manner. However, the support element may for example also consist of metal. It then provides a particularly high load capacity.

The support element of the fastening system according to the invention has an outer contour, which executes a stroke upon rotation of the support member about a longitudinal axis, which in the assembled state in particular corresponds to the longitudinal axis of the fastening bolt or the dowel. The support surface formed by the outer contour of the support member for the holding means of the object thus changes depending on the rotational position of the support member in its height. By changing the angle of rotation of the support element, the height of the outer contour of the support element carrying the article can thus be changed. This in turn allows the height of the object to be adjusted as desired.

In order to prevent that, for example, due to the weight of the article or a subsequent lateral displacement of the object, the support element is undesirable (back) rotated, and thus the height adjustment is changed again, holding means are provided according to the invention, the support member in different rotational positions, So with different angles of rotation, hold. The holding means counteract a rotation of the support element, so that an undesired (rear) adjustment of the height is prevented.

Thus, the fastening system according to the invention, regardless of the number of attachment points provided on the support allows a repeatable, subsequent adjustment of the article in the vertical and horizontal direction while maintaining high load capacity and avoiding unnecessary damage to the wearer. In this case, the fastening system according to the invention can be used in a simple manner without changing the object to be suspended, in particular its holding means. The fastening system is thus universally applicable. At the same time, by suitable design of the outer contour of the support element, a large Adjustment can be realized. The fastening system allows maximum flexibility in terms of size, material and design.

Due to the great flexibility, the fastening system according to the invention is particularly suitable for applications in which suspended objects, such as images, change frequently, as occurs in galleries, hotels, restaurants or retail.

According to one embodiment, the support element can have a passage opening for passing through the fastening bolt, wherein the support element can be clamped between the fastening bolt and the dowel or the support. The fastening bolt is then inserted for mounting through the passage opening of the support element and then inserted into the dowel. The support element is then clamped in the fully inserted into the dowel state between a bolt head portion of the mounting bolt and a facing abutment surface of the dowel or the carrier. The longitudinal axis of the passage opening defines the longitudinal axis of the support element, which causes the stroke of the outer contour upon rotation of the support element.

According to a further embodiment, the holding means may comprise frictional means with which the support member may be frictionally held in different rotational positions. The adhesion-locking means may comprise a first clamping element which can be clamped between the support element and the support and has a passage opening for the fastening bolt and / or a second clamping element which can be clamped between the fastening bolt and the support element and has a passage opening for the fastening bolt. The first clamping element and / or the second clamping element may be disc-shaped. For example, one or both clamping elements may consist of a plastic. As a result, a particularly high clamping effect can be achieved. It is also possible that one or both clamping elements consist of a metal. This offers a particularly high stability.

According to a further embodiment, the support element can have a slot for the fastening bolt, so that the support element can be held in different positions along the elongated hole, in particular by means of the retaining means or the fastening bolt. The fastening bolt is guided through the slot and the support member can be laterally displaced under the leadership of the fastening bolt in the slot and fastened in the desired position by the holding means or the fastening bolts. As a result, a further degree of freedom in the adjustment of the support element is achieved in a simple manner. If first and / or second clamping elements are provided, at least one of the clamping elements may comprise guide projections which are guided in the oblong hole upon displacement of the fastening bolt and thus of the clamping element or clamping elements penetrated by the fastening bolt. The respective other clamping element can then have, for example, at least one guide receptacle in which the guide projections are received.

According to a further embodiment, a plurality of outer edges of the support element, preferably all the outer edges of the support element, each extend along a straight line and at an angle to each other. Preferably, at least some of the outer edges may be at an acute and / or an obtuse angle to each other. At least some of the outer edges also have a different length. Thus, by rotation of the support element, the outer contour of the support element can be changed and thereby the position of the object can be changed.

According to a further embodiment, which may preferably be combined with the aforementioned embodiment, the holding means may further comprise a holding rail attachable to the object, in which the holding element can be used holding in different rotational positions. The holding rail may also be part of the holding means and hold the support member by frictional connection and / or positive engagement in the respective rotational position. The retaining rail can be made of plastic or metal, for example. For a metal rail, an additional anti-theft device would be conceivable. For example, the support element could then be laterally inserted into the holding slips and held in this form-fitting manner. If subsequently the lateral openings of the retaining rail are closed, for example by inserting a nut to be fixed by a screw, the support element can not be released from the retaining rail without further ado. The retaining rail can eg be glued or screwed to the object. Especially in combination with the aforementioned embodiment, the support rail provides by moving the respective outer edge in the support rail easy adjustability of the position of the object in the direction of the outer edge, in particular in the horizontal direction. The rail may be formed, for example, U-shaped. In a particularly simple manner, the retaining rail can be fastened with its rail opening down to the object, so that the rail can be placed on one of the outer edges of the support element and then held by gravity on this. To improve the grip just for the adjustment, can Also be provided that the support member can be clamped in the support rail. For this purpose, the rail opening, for example, have a slightly smaller width than the thickness of the outer edge of the support element. To increase the clamping force, the support element and / or the retaining rail may comprise clamping elements, preferably clamping projections and / or clamping recesses. For example, the clamping projections and clamping recesses may be formed dome-shaped. A roughened surface of the support element and / or retaining rail would be conceivable.

Alternatively or in addition to a retaining rail, it is possible that the support element has at its periphery a plurality of retaining recesses, preferably retaining slots. The retaining recesses are part of the retaining means. In this holding recesses provided on the object holding devices, such as a retaining wire or tether, can be used to hold the support member so in different rotational positions. This embodiment can be provided particularly advantageous if no retaining rail is present. It is then also possible to easily bend the support element in order to be able to use existing holding devices on the object, such as, for example, raised metal clamps or the like, if, for example, there is no hold for a holding rail.

According to a further embodiment, the holding means may comprise first holding means on the support member and second holding means on the dowel, wherein the holding means are adapted to hold the support member in different rotational positions or angles of rotation with respect to the dowel. The anchor is, as explained, in particular rotatably held in the carrier. By the first and second holding means, the rotational position of the support member can be reliably adjusted with respect to the rotationally fixed dowel and thus with respect to the object to be fastened.

According to a further embodiment, the holding means can be or comprise positive locking means, with which the support element can be held in a form-fitting manner in different rotational positions or angles of rotation. The positive locking means act by engagement with each other against rotation of the support member relative to the dowel. It thus takes place in comparison to a sole frictional connection or adhesion a particularly reliable holding the respective rotational position.

The positive locking means may comprise first positive locking means on the support element, in particular on the outer side of the support element, which engage in a form-fitting manner in corresponding second positive locking means on the dowel, in particular on the inner side of the dowel. The first and second interlocking means may each form a periodic structure. The periodicity of the interlocking first and second interlocking means then predetermines the possible rotational positions of the support member relative to the peg. The number of form-locking elements on the support element and dowels does not have to correspond to each other.

According to a further embodiment, the interlocking means may comprise, at least in sections, first ribs formed on the outside of a portion of the support member formed on the support member and second ribs formed on the inside of the plug at least in sections corresponding to the first ribs. Furthermore, it is possible that the section of the support element having the first ribs tapers in a direction of insertion of the fastening bolt into the dowel (viewed in the assembled state), preferably tapering conically. Also, the portion of the anchor, which forms the second ribs, can be correspondingly tapered in the direction of insertion of the fastening bolt into the dowel, preferably tapered conically.

The first and second ribs preferably extend substantially (except for an optionally provided (conical) taper in the longitudinal direction of the dowel or the first ribs having portion of the support member. The cross-sectional shape of the ribs can be configured as desired. For example, the ribs may be rounded or pointed or have a different cross-sectional shape. The first ribs each engage positively in the second ribs. The distance between the adjacent ribs provides discrete possible rotational positions of the support member relative to the dowel. During the turning operation of the support member, the first and / or second ribs elastically deform. The example, corrugated, serrated or rosette-shaped rib structure on the support element thus finds a tailor-made counter-structure in the dowel to lock the support member in the desired rotational position. By the first and second ribs is a particularly secure locking of the support element in the respective rotational position. The preferably conical taper of the sections forming the first and second ribs, moreover, permits a particularly simple insertion of the fastening bolt into the plug while at the same time ensuring a positive fit.

According to a further embodiment, the second ribs may be formed by a rib insert of the anchor made of a plastic, rubber or rubber. Such materials reliably meet the requirements of elasticity. By providing an insert inserted into the base body of the anchor there is maximum flexibility regarding the adaptation of the respective materials to the desired function. For example, the base body of the dowel may consist of a harder or less elastic material than the insert forming the second ribs. But it would of course also possible that the dowel is integrally formed or uniform material.

According to a further embodiment, the rib insert may be materially connected to a base body of the anchor, preferably produced in a two-component injection molding process. It is done in this way a particularly secure hold at the same time particularly simple production.

According to a further embodiment, the fastening bolt, as explained, be a bolt with an external thread formed at least in sections on the shaft portion.

The form-fitting means may according to a further embodiment formed on a back of the support member form-fitting elements and on a in the assembled state of the back of the support member facing the head side of the anchor formed, corresponding to the interlocking elements of the support member positive-locking elements comprise. The support member may be formed, for example, disk-shaped. At a rear side facing the carrier in the assembled state, a plurality of form-locking elements, for example projections or depressions, distributed, for example, along a circular path are then formed. On a side facing the support member in the assembled state outside of the dowel, then correspondingly a plurality of, for example, also distributed along a circular path arranged corresponding form-fitting elements, such as depressions or projections, are formed. In the assembled state, the corresponding interlocking elements can engage in different relative rotational positions of the support element and dowel, wherein they each prevent a (further) relative rotation between the support element and dowel. The number of form-locking elements on the support element and dowels does not have to correspond to each other.

According to a further embodiment, the positive locking elements on the back of the support element and on the head side of the dowel mutually corresponding dome-shaped positive locking elements, in particular spherical dome-shaped positive locking elements, be. In particular, on one of support element and dowel dome-shaped, preferably kugelkalottenförmige, depressions and on the other of the support element and dowel dome-shaped, preferably kugelkalottenförmige, projections may be formed. Kugelkalottenförmige positive locking elements with a spherical shell-shaped inner or outer surface provide easy adjustability of the rotational position of the support element at the same time secure grip safely.

The head side of the dowel may be formed by a flange portion of the dowel. This flange portion is enlarged in cross section with respect to the portion of the anchor to be inserted into the bore of the carrier. He can thus rest in the inserted state in the hole of the anchor with an annular inner side of the carrier. At the same time, the support element bears against the outer side of the flange section, which at the same time has the positive locking elements. The flange portion serves at the same time as a spacer between the support member and the carrier.

The outer contour of the support element may differ according to a further embodiment of a circular shape. The deviating from the circular shape outer contour of the support element is therefore not rotationally symmetrical. In particular, it is not possible to image this outer contour by any rotation angle on itself. A deviation from a circular shape is required to achieve the desired stroke, in particular when the support element is arranged with its passage opening coaxial with the longitudinal axis of the dowel or the fastening bolt.

The outer contour of the support element may have a non-circular shape according to another embodiment. A non-circular shape periodically deviates from a circle. The outer contour of the support element may in particular be rotationally symmetrical. Rotational symmetry exists when the outer contour can be imaged onto itself by rotation about at least one rotational angle lying between 0 ° and 360 °. A non-circular or rotationally symmetrical outer contour allows a particularly uniform and predictable setting of the height position.

The outer contour of the support element may have a polygonal shape according to another embodiment. In principle, any polygons are conceivable, for example a hexagon, an octagon etc. The polygonal shape can also have rounded corners.

According to a particularly practical embodiment, the outer contour of the support element may have an oval shape, in particular an elliptical shape, or a rectangular shape with rounded corners. This results in a particularly simple height adjustment. Rounded corners also prevent unwanted tilting.

As already explained, the fastening system according to the invention can furthermore comprise the fastening bolt. The fastening bolt may have a shank portion and a bolt head portion. The shank portion may be at least partially cylindrical. The bolt head section has a cross-section which is larger in cross-section than the shaft section. The fastening bolt can be, for example, a bolt with an external thread extending over the shaft section at least in sections. The fastening bolt may for example consist of a metal, in particular stainless steel.

According to a further embodiment, the largest diameter of the outer contour of the support element may have at least three times the size, preferably at least four times the size, of the (largest) diameter of the shank portion of the fastening bolt. The largest diameter of the outer contour of the support element according to a further embodiment, at least 25 mm, preferably at least 50 mm. The indicated values refer to the outer contour of the support element carrying the article. Other sections of the support element are unaffected. By a large-sized outer contour of the support member, an effective height adjustment can be achieved particularly reliable with simultaneous secure holding in the respective rotational position.

In order to maximize the adjustment range by a rotation of the support element, a longitudinal extent of the outer contour of the support element according to a further embodiment at least 1.5 times the size, preferably at least twice the size, have a transverse extent of the outer contour of the support element. For example, if the outer contour is elliptical, corresponds to the longitudinal extent of the double major half-axis and the transverse extent of the double semi-minor axis of the ellipse.

As already explained, the support element may be a separate element from fastening bolts and dowels. It is then possible in manufacturing technology simple way to use for fastening standard fastening bolts, in particular standard bolts. The support member may also be part of the dowel or in particular part of the fastening bolt. For example, it is possible that the support element is formed by the bolt head portion of the fastening bolt. The outer contour of the support element explained above is then formed by the outer contour of the bolt head section. On this outer contour of the bolt head portion of the object is then, for example, with its holding means. The fastening system must only comprise two parts in this embodiment. The bolt head portion which has a height-variable outer contour when turning is that portion on which the object to be fastened rests in the state fastened to the carrier. If reference is made in this context to the outer contour of the bolt head portion, it is therefore the outer contour of this article bearing bolt head portion. The bolt head section may be a bolt head plate which simultaneously forms an end-side termination of the fastening bolt. The bolt head plate may include an engagement portion for engaging a rotary tool. But it is also possible that the bolt head portion is a separately formed from such a bolt head plate portion, for example, a subsequent to the bolt head plate section. The bolt head plate may have a cross section deviating from the bolt head portion, for example a larger cross section, than the bolt head portion. The outer contour of the bolt head plate may for example have a circular shape. As far as holding means, such as positive locking means, are formed on the fastening bolt, these are in particular formed separately from any external thread of the fastening bolt or not formed by the external thread. As far as first ribs are designed as positive locking means on the fastening bolt, they can be formed in particular on the shank portion of the fastening bolt. It would then be conceivable in principle that the structure of the first ribs formed on the shaft section extends completely over the shaft section, that is to say the shaft section has no external thread for screwing into the plug.

According to a further embodiment, the bolt head portion may be arranged eccentrically to the longitudinal axis of the shaft portion. The desired stroke can also be achieved if the outer contour of the bolt head portion has a circular shape.

According to a further embodiment, which may be provided additionally or alternatively to the retaining means explained above, the retaining means may comprise a toothing formed at least in sections on the circumference of the support element. The toothing then digs into a corresponding holding portion of the object, which may be made of wood, for example. As a result, securing against unwanted turning back can already be adequately ensured in certain applications, for example with less heavy objects. In addition, such a toothing may also be provided in addition to positive locking means or the like in order to continue to secure the set rotational position. The toothing can be formed, for example, in the region of rounded corners of the outer contour.

The invention also relates to a system comprising a support, preferably a support wall, and an object attached thereto by means of at least one fastening system according to the invention, preferably a picture frame, a frameless picture, a clamping frame, a mirror frame, a frameless mirror or a part of a shelving system. It is both possible that the object with only one fastening system with only one fastening bolt, only one support element and only one dowel is attached to the carrier, and that the object with a plurality of fastening systems with a plurality of fastening bolts, a plurality of support elements and a plurality of dowels is attached For example, with two fastening bolts, two support elements and two dowels.

• 1 einen Befestigungsbolzen eines erfindungsgemäßen Befestigungssystems nach einem ersten Ausführungsbeispiel in einer Seitenansicht,
• 2 eine Schnittansicht entlang der Linie A-A in 1,
• 3 eine Draufsicht auf den in 1 gezeigten Befestigungsbolzen,
• 4 das Detail B aus 3 in vergrößerter Darstellung,
• 5 eine Schnittansicht entlang der Linie A-A in 1 für einen Befestigungsbolzen nach einem weiteren Ausführungsbeispiel,
• 6 eine Draufsicht auf den Befestigungsbolzen aus 5,
• 7 eine Draufsicht auf einen Dübel eines erfindungsgemäßen Befestigungssystems,
• 8 eine Schnittansicht entlang der Linie C-C in 7,
• 9 eine Schnittansicht entlang der Linie D-D in 8,
• 10 ein Tragelement eines erfindungsgemäßen Befestigungssystems nach einem weiteren Ausführungsbeispiel in einer Draufsicht,
• 11 das Tragelement aus 10 in einer Seitenansicht,
• 12 einen Dübel eines Befestigungssystems nach einem weiteren Ausführungsbeispiel in einer Seitenansicht,
• 13 den Dübel aus 12 in einer Draufsicht,
• 14 ein erfindungsgemäßes Befestigungssystem umfassend das Tragelement aus den 10 und 11 und den Dübel aus den 12 und 13 in einem teilweise montierten Zustand in einer teilweise geschnittenen Ansicht,
• 15 ein Tragelement eines erfindungsgemäßen Befestigungssystems nach einem weiteren Ausführungsbeispiel in einer Draufsicht,
• 16 das Tragelement aus 15 in einer Seitenansicht,
• 17 einen Dübel eines Befestigungssystems nach einem weiteren Ausführungsbeispiel in einer Schnittansicht entsprechend 8,
• 18 den Dübel aus 17 in einer Schnittansicht entlang der Line E-E in 17,
• 19 einen mit einem erfindungsgemäßen Befestigungssystem an einem Träger zu befestigenden Gegenstand in einer Rückansicht,
• 20 ein vergrößertes Detail der Darstellung aus 19 mit einem Befestigungsbolzen,
• 21 Haltemittel eines mit einem erfindungsgemäßen Befestigungssystem an einem Träger zu befestigenden Gegenstands gemäß einem weiteren Ausführungsbeispiel,
• 22 ein erfindungsgemäßes Befestigungssystem nach einem weiteren Ausführungsbeispiel in einer perspektivischen Ansicht,
• 23 eine Schnittansicht des in 22 gezeigten Befestigungssystems,
• 24 ein Tragelement des in 22 gezeigten Befestigungssystems in einer Frontansicht,
• 25 ein erstes Klemmelement des in 22 gezeigten Befestigungssystems in einer perspektivischen Ansicht, und
• 26 ein zweites Klemmelement des in 22 gezeigten Befestigungssystems in einer perspektivischen Ansicht.

Embodiments of the invention will be explained in more detail with reference to figures. They show schematically:

• 1 a fastening bolt of a fastening system according to the invention according to a first embodiment in a side view,
• 2 a sectional view along the line AA in 1 .
• 3 a top view of the in 1 shown fastening bolts,
• 4 the detail B off 3 in an enlarged view,
• 5 a sectional view along the line AA in 1 for a fastening bolt according to a further embodiment,
• 6 a plan view of the mounting bolt 5 .
• 7 a plan view of a dowel of a fastening system according to the invention,
• 8th a sectional view along the line CC in 7 .
• 9 a sectional view along the line DD in 8th .
• 10 a support element of a fastening system according to the invention according to a further embodiment in a plan view,
• 11 the support element 10 in a side view,
• 12 a dowel of a fastening system according to a further embodiment in a side view,
• 13 the dowel off 12 in a plan view,
• 14 an inventive fastening system comprising the support member of the 10 and 11 and the dowel from the 12 and 13 in a partially assembled state in a partially sectioned view,
• 15 a support element of a fastening system according to the invention according to a further embodiment in a plan view,
• 16 the support element 15 in a side view,
• 17 a dowel of a fastening system according to a further embodiment in a sectional view accordingly 8th .
• 18 the dowel off 17 in a sectional view along the line EE in 17 .
• 19 a subject to be fastened to a carrier with a fastening system according to the invention in a rear view,
• 20 an enlarged detail of the presentation 19 with a fastening bolt,
• 21 Holding means of an article to be fastened to a carrier with an attachment system according to the invention in accordance with a further exemplary embodiment,
• 22 an inventive fastening system according to a further embodiment in a perspective view,
• 23 a sectional view of the in 22 shown fastening system,
• 24 a support element of in 22 shown fastening system in a front view,
• 25 a first clamping element of the in 22 shown fastening system in a perspective view, and
• 26 a second clamping element of in 22 shown fastening system in a perspective view.

Unless otherwise indicated, like reference characters designate like items throughout the figures.

At the in 1 shown fastening bolts 10 In the example shown, this is a screw bolt 10 , The fastening bolt 10 has a shaft section 12 with a substantially cylindrical basic shape and an external thread 14 , At its the introductory 15 opposite end of the fastening bolt has a bolt head portion 16 in the present case formed by a bolt head plate. As in the 2 and 3 to recognize, has the bolt head section 16 a rectangular outer contour with rounded corners. The bolt head section 16 with its outer contour forms in this embodiment, a support member of the fastening system. In the plan view of 3 is an engaging section 18 shown for engagement of a rotary tool. The engaging section 18 may for example be designed in the form of a hexalobular (Torx). He could also be in the form of a slot or Phillips or otherwise formed.

In the area of the transition of the shaft section 12 in the bolt head section 16 are on the outside of the shaft portion 12 first ribs 20 educated. The first ribs 20 having portion of the shaft portion 12 Tapered conically in one direction from the bolt head portion 16 away, in 1 So down. As in 2 The ribs on their crests and at their bottom are each rounded off. In 4 It can also be seen that in the area of the rounded corners of the bolt head section 16 each a toothing 22 is trained.

The fastening bolt 10 consists in the example shown a total of a metal material, such as stainless steel.

In the 5 and 6 is an alternative embodiment of a bolt head section 116 shown in place of the bolt head section 16 at the in 1 shown fastening bolts can be provided. This bolt head section 116 is different from the one in the 2 and 3 shown bolt head section 16 only in that in the 5 and 6 shown bolt head section 116 has an elliptical outer contour. The bolt head section 116 with its outer contour in turn forms a support element of the fastening system.

In the 7 to 9 is a dowel 24 a fastening system according to the invention shown. The dowel 24 forms a recording in a conventional manner 26 for the shaft section 12 of the fastening bolt 10 , The wall of the recording 26 has several in the longitudinal direction of the anchor 24 running slots 28 , In addition, the dowel points 24 on its outside in a conventional manner elastic retaining arms 30 on. The dowel 24 can be used in a bore of a carrier, not shown, such as a support wall, wherein the retaining arms 30 the dowel 24 secure against pulling out of the hole. In the course of screwing in the fastening bolt 10 in the recording 26 of the dowel 24 becomes the dowel 24 using the slots 28 spread apart, leaving the mounting bolt 10 in the screwed state together with the dowel 24 securely anchored in the bore.

Admission to the recording 26 is through a flange section 32 educated. At this flange section 32 closes a section with on the inside of the recording 26 of the dowel 24 trained second ribs 34 on. The second ribs 34 correspond in terms of shape and number of the first ribs 20 of the fastening bolt 10 , Also the second ribs 34 forming section of the dowel 24 tapers in the example shown in the insertion direction of the fastening bolt 10 , in 8th downward. In the course of screwing in the fastening bolt 10 in the dowels 24 arrive the first ribs 20 of the fastening bolt 10 in positive engagement with the second ribs 34 of the dowel 24 , The dowel 24 including the second ribs 32 consists in the example shown of elastic plastic. Due to the elasticity of the dowel 24 can the first ribs 20 depending on the rotational position of the fastening bolt 10 gradually in positive engagement with the second ribs 34 come.

Through the first and second ribs 20 . 34 formed positive locking means, the fastening bolt 10 with respect to the rotatably held in the bore of the carrier dowels 24 be locked in different rotational positions. An object to be suspended from the carrier, for example a picture frame or the like, is provided with a holding section on the bolt head section for holding on the carrier 16 or. 116 on. By changing the rotational position of the fastening bolt 10 can due to the ovality of the bolt head section 16 or. 116 the vertical position of the object can be adjusted later and repeatedly reliably.

The at the bolt head section 16 additionally provided at the rounded corners toothing 22 serves in particular at holding portions of the article of relatively soft material, such as wood, additionally dig into this and so the stability of the selected rotational position of the bolt head portion 16 continue to improve.

Based on 10 to 14 a further embodiment of a fastening system according to the invention will be explained. The fastening system comprises a disk-shaped in the example shown, separated from the fastening bolt and the dowel support member 44 with an oval outer contour in the example shown. The support element 44 has a central passage opening 46 through which a in 14 shown fastening bolts 210 , in this case a standard bolt 210 , can be guided. On the in 10 to recognize the back of the supporting member 44 are in the example shown four spherical cap-shaped projections 48 designed as positive locking elements. In the 12 and 13 is a dowel 224 shown, which is adapted to the support element 44 co. The dowel 224 corresponds largely to that in the 7 to 9 shown dowels 24 , Also the dowel 224 makes a recording 226 for the shank portion of the fastening bolt 210 , The wall of the recording 226 again has several in the longitudinal direction of the anchor 224 running slots 228 , In addition, the anchor also points 224 on its outside elastic retaining arms 230 on. Unlike the one in the 7 to 9 shown dowels 24 points the dowel 224 at his entry into the recording 226 forming end in cross-section opposite the rest of the dowel 224 considerably enlarged flange section 232 on. On the mounted state of the back of the support element 44 facing the head side are on the flange portion 232 several distributed along a circular path arranged Kugelkalottenförmige shots 50 designed as positive locking elements. The pictures 50 correspond in their geometry to the projections 48 of the support element 44 , In particular, the projections 48 of the support element 44 in by the number and arrangement of recordings 50 predetermined steps in different relative rotational positions between the support element 44 and dowels 224 positively in the recordings 50 intervention.

14 is a partially sectioned view, in the sake of illustration, the support element 44 and the carrier 52 are shown cut. As in 14 to recognize, is to be mounted on a carrier 52 , in this case a support wall 52 , first the dowel 224 in an unspecified bore of the carrier 52 used. Subsequently, the support element 44 in the desired rotational position to the flange portion 232 of the dowel 224 set, with the projections 48 positively in the recordings 50 intervention. Thereafter, the fastening bolt 210 through the passage opening 46 of the support element 44 through into the recording 226 of the dowel 224 screwed. In the finished assembled state, the support element 44 so between the bolt head section 216 and the flange portion 232 held clamped. The flange section 232 at the same time forms a spacer for the support element 44 from the carrier 52 ,

In the 15 and 16 is a support element 144 shown according to another embodiment. This likewise disc-shaped support element 144 has a rectangular outer contour with bevelled corners. Again has the support element 144 a central passage opening 146 , Starting from a cylindrical extension 148 extends in the embodiment of 15 and 16 a section of the in 15 shown back of the support element 144 whose outer side is defined by a plurality of first ribs 120 is formed as positive locking elements.

In the 17 and 18 is a dowel 324 shown according to a further embodiment, which is adapted to the support element 144 from the 15 and 16 to work together. Again this dowel forms 324 a recording 326 whose walls have a plurality of slits 328 are provided. In addition, this dowel also points 324 again elastic retaining arms 330 on. To one the admission into the admission 326 forming flange section 332 closes on the inside of the dowel 324 a plurality of to the first ribs 120 of the support element 144 corresponding second ribs 334 on. The support element 144 can match his first ribs 120 having in section by the distance of the first and second ribs 120 . 334 predetermined discrete rotational positions in the dowel 324 be used, the first ribs 120 each form-fitting in the second ribs 334 intervention.

In the same way as in 14 for the support element 44 and the dowel 224 is shown, in this way the support element 144 over the dowel 324 and for example the fastening bolt 210 on a carrier 52 be attached. Again, the support element 144 between the flange portion 332 of the dowel 324 on the one hand and the bolt head section 216 of the fastening bolt 210 on the other hand held clamped in the respective desired rotational position.

In 19 is one on a carrier, like the one in 14 shown carrier wall 52 , object to be fastened 36 , in the example shown a picture frame 36 , shown in a rear view. At the back are on the picture frame 36 two frame angles 38 attached, for example by screwing. In 19 are the frame angles 38 in the two upper corners of the picture frame 36 arranged.

However, they can also be arranged at other positions, such as in 19 at the reference numeral 40 indicated by dashed lines.

In 20 is the in 19 right frame angle 38 shown in an enlarged view. It can be seen that the frame angle 38 (the in 19 left frame angle 38 is so far identical) formed on its upper edge a fold 42 comprising, the holding means for holding on the fastening bolt 10 forms. In particular, the picture frame 36 with the underside of the fold 42 on the bolt head section 16 or. 116 of the fastening bolt 10 suspended as in 20 very schematic and exemplary for the fastening bolt 10 with the bolt head section 116 illustrated. The fastening bolt 10 and with it its bolt head section 116 are in there 20 merely shown for illustration in two, rotated by 90 ° rotational positions. The schematic representation is intended to illustrate how by rotation of the fastening bolt 10 a height adjustment of the picture frame 36 he follows. It is understood that actually a fastening bolt 10 per frame angle 38 is sufficient. In the same way, the object can 36 with the fold 42 on the outer contour of the support element 44 or the support element 144 be hung up. By adjusting the rotational position of the support element 44 or the support element 144 can in turn be adjusted in the desired manner, the height of the object.

While in the embodiment of the 19 and 20 Two attachment points with two fastening bolts and two dowels are required 21 an alternative embodiment of a holding frame 138 , which is also a fold 142 has, which form holding means. Again, the support frame 138 at the back of an object 36 like a picture frame 36 , arranged and with the underside of the fold 142 on the bolt head section 16 or. 116 of the fastening bolt 10 or on the support element 44 or the support element 144 suspended. In the embodiment of the 21 is a support frame 138 sufficient, so that only one attachment point with a fastening bolt and a dowel is required.

In the in the 22 and 23 shown fastening system is a cross-sectionally U-shaped retaining rail 412 provided at the rear of the object to be fastened to the carrier with its rail opening downwards, as in 22 shown, is attached, for example, is glued. In the example shown, the retaining rail 412 made of plastic and is elastic. In the retaining rail 412 held captive is a support element 444 , which in the example shown as a metal plate with a slot 426 is trained. Through this slot 426 the fastening bolt is guided. Also, especially in 24 to recognize that the outer edges of the support element 444 along each line and each at an angle to each other. At least some angles are sharp and obtuse angles. As a result, at least some of the outer edges also have a different length. This allows the support element 444 optionally with one of its outer edges in the retaining rail 412 be used, which in conjunction with the slot 426 a variety of positioning options for the fastening bolt and thus the object can be realized. In 22 is also an optional marker 446 shown the position of the fastening bolt in the slot 426 displays. This marker is in for illustrative purposes 24 Not shown. In addition, the support element 444 a plurality of arranged in the vicinity of its outer edges dome-shaped clamping projections 448 on which the clamping force between retaining rail 412 and support element 444 increase.

The fastening system also includes an in 25 shown substantially disc-shaped first clamping element 450 and one in 26 also shown substantially disc-shaped second clamping element 452 , In the illustrated example, there is the first clamping element 450 made of a plastic, for example a silicone, and the second clamping element 452 from a metal. The second clamping element 452 further comprises two oppositely arranged guide projections 454 passing through the slot 426 through into an annular guide groove 456 of the first clamping element 450 engage, as in particular in the sectional view of 23 clearly visible. First and second clamping element 450 . 452 each have a passage opening beyond 458 . 460 on for performing a fastening bolt, in the 22 to 26 not shown in detail. In 23 is still a dowel 424 shown, which is used for anchoring in the carrier, for example a support wall. Subsequently, by second clamping element 452 , Support element 444 and first clamping element 450 through a fastening bolt screwed into the dowel, in 23 from right to left. In the assembled state, the support element 444 in its rotational position on the one hand non-positively by the interaction of the clamping elements 450 . 452 and their tension by means of the fastening bolt in the dowel 424 and on the other hand non-positively and positively in the support rail 412 held.

Especially in the 22 and 24 moreover, several are around the circumference of the support element 444 provided retaining slots 462 to recognize. In this can hold the support element 444 For example, a retaining wire or tether of the article may be used if it does not have a retaining rail.

LIST OF REFERENCE NUMBERS

10

mounting bolts

12

shank portion

14

external thread

15

introductory

16

Pin header

18

engaging portion

20

First ribs

22

gearing

24

dowel

26

admission

28

slots

30

Elastic holding arms

32

flange

34

Second ribs

36

Picture Frame

38

frame angle

40

positions

42

fold

44

supporting member

46

Through opening

48

projections

50

Recordings

52

carrier

116

Pin header

120

First ribs

138

holding frame

142

fold

144

supporting member

146

Through opening

148

extension

210

mounting bolts

216

Pin header

224

dowel

226

admission

228

slots

230

Elastic holding arms

232

flange

324

dowel

326

admission

328

slots

330

Elastic holding arms

332

flange

334

Second ribs

412

retaining rail

424

dowel

426

Long hole

444

supporting member

446

optional marking

448

clamping projections

450

first clamping element

452

second clamping element

454

guide projections

456

guide

458

Through opening

460

Through opening

462

retaining slots

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102010060618 A1 [0004, 0005]
• DE 202014100230 U1 [0005]

Claims (21)

Fixing system for fastening an object (36) to a carrier (52), in particular a carrier wall, comprising a dowel (24, 224, 324, 424) which can be inserted into the carrier and into which a fastening bolt (10, 210) can be screwed, characterized in that a support element (44, 144, 444) is provided for supporting the object (36), the outer contour of which executes a stroke when the support element (44, 144, 444) rotates about a longitudinal axis, and holding means are provided to hold the object Support member (44, 144, 444) in different rotational positions. Fixing system after Claim 1 characterized in that the support element (44, 144, 444) has a passage opening (46, 146) for passing through the fastening bolt (10, 210), wherein the support element (44, 144, 444) between the fastening bolt (10, 210) and the dowel (24, 224, 324, 424) or the carrier (52) can be clamped. Fastening system according to one of the preceding claims, characterized in that the holding means comprise force-locking means with which the support element (44, 144, 444) can be held in different rotational positions non-positively. Fixing system after Claim 3 , characterized in that the adhesion means a between the support member (444) and the carrier clampable arrangeable first clamping element (450) having a through hole (458, 460) for the fastening bolt and / or between the fastening bolt and the support member (444) can be arranged by clamping second clamping element (452) with a through hole (458, 460) for the fastening bolt. Fixing system after Claim 4 , characterized in that the first clamping element (450) and / or the second clamping element (452) is disc-shaped. Fastening system according to one of the preceding claims, characterized in that the support element (444) has a slot (426) for the fastening bolt, so that the support element (444) can be held in different positions along the elongated hole (426). Fastening system according to one of the preceding claims, characterized in that a plurality of outer edges of the support element (444) extend in each case along a straight line and at an angle to each other. Fastening system according to one of the preceding claims, characterized in that the holding means comprise a fastened to the object holding rail (412), in which the holding element can be used in different rotational positions holding. Fixing system after Claim 8 , characterized in that the support element (444) can be held by clamping in the retaining rail (412). Fixing system after Claim 9 , characterized in that the support element (444) and / or the retaining rail (412) clamping elements (450, 452) for increasing the clamping force, preferably clamping projections (448) and / or clamping recesses. Fastening system according to one of the preceding claims, characterized in that the holding means comprise first holding means on the support element (44, 144, 444) and second holding means on the dowel (24, 224, 324, 424), and that the holding means are adapted to the support element (44, 144, 444) in different rotational positions relative to the dowel (24, 224, 324, 424). Fastening system according to one of the preceding claims, characterized in that the holding means comprise interlocking means with which the support member (44, 144,444) can be held in a form-fitting manner in different rotational positions. Fixing system after Claim 12 , characterized in that the interlocking means formed at least in sections on the outside of a formed on the support member (144, 444) portion (12) first ribs (20, 120) and at least partially on the inside of the dowel (24, 324, 424) , second ribs (34, 334) corresponding to the first ribs (20, 120). Mounting system according to one of Claims 12 or 13 , characterized in that the positive locking means formed on a rear side of the support member (44, 444) form-fitting elements (48) and on a in the assembled state of the back of the support member (44, 444) facing the head side of the dowel (224, 424), to the Form-fitting elements (48) of the support element (44, 444) corresponding positive-locking elements (50) comprise. Fixing system after Claim 14 , characterized in that the head side of the dowel (224, 424) by a flange portion (232) of the dowel (224, 424) is formed. Fastening system according to one of the preceding claims, characterized in that the outer contour of the support element (44, 144, 444) has a polygonal shape. Fastening system according to one of the preceding claims, characterized in that the outer contour of the support element (44, 144, 444) has an oval or rectangular shape with rounded corners. Fastening system according to one of the preceding claims, characterized in that the support element (44, 144, 444) is disc-shaped. Fastening system according to one of the preceding claims, characterized in that it further comprises the fastening bolt (10, 210), wherein the fastening bolt (10, 210) has a shank portion (12) and a bolt head portion (16, 116, 216). Fixing system after Claim 19 , characterized in that the support member (444) by the bolt head portion (16, 116) of the fastening bolt (10) is formed. A system comprising a support (52), preferably a support wall (52), and an object (36) attached thereto by at least one fastening system according to any one of the preceding claims, preferably a picture frame (36), a frameless image, a tenter, a mirror frame, a frameless mirror or part of a shelving system.

Images