EP2492420A2 - Fitting for holding a handle - Google Patents

Abstract

The fitting (1) has fl at-planar inner side (3) facing towards a door leaf and extended around an actuating axis (9) of a door handle. A fastening unit is accommodated in fastening points (6) and fixes the inner side at the door leaf. The inner side includes a structure (4), which causes form closure between the inner side and the door leaf. The structure and the inner side form a monolithic component. The structure includes two fixing pins (5a) with a pointed contour at the door leaf. The fixing pins are formed as a cone or pyramid.

Description

The present invention relates to a fitting for receiving a fastened to a door handle handle, in particular a door handle, a short or long shield, or a lock cylinder, with a plane, facing the door leaf inside, which extends around an actuating axis of the handle, and at least one Attachment in which a fastener is added, which serves to fix the inside of the door leaf.

Door handle fittings are fastened to the door leaf with screws, with the screws screwed directly into the door leaf. Another possibility is to guide the fastening screws through the door and to secure from the opposite side to the counter fitting.

Door fittings are subject to different forces during daily use. On the one hand, when operating a handle such as door handle, doorknob or key rosette act a torque to operate the lock mechanism on the fitting. On the other hand, it has been shown that upon actuation of a door handle, a downward force on the fitting can be exercised. These forces generally act radially with respect to the actuation axis of the lock mechanism and lie in the plane of the door leaf.

After unlocking / unlocking the lock, the door can then be opened via the handle, with an axial force acting on the pusher perpendicular to the door leaf and parallel to the guide bearing for the door handle. These axial forces are via a fitting-side mounting bearing taken on the door rosette or the door plate and can ultimately be derived from the fitting to the door leaf.

For the derivation of the radial forces support sleeves are known which are mounted on the fitting and can positively engage in recesses of the door leaf. However, in some designs, the use of support sleeves is not possible, as for example in Scandinavia, as the door side has a very large opening, which excludes the inclusion of support sleeves. The fittings, in particular round escutcheons are then only on their outer annular area on the door leaf.

Planar fittings are in this case only positively connected to the door leaf, the adhesion is essentially determined by the tightening torque of the mounting screws.

In rough daytime operation, in particular in the object sector or in public buildings, this frictional attachment of planar fittings is problematic, especially as a result of mechanical and thermal loads, the adhesion decreases over time and the fitting can thus solve.

It is therefore an object of the present invention to provide a fitting that allows reliable fixation of a handle for actuating the lock mechanism on a door leaf, which ensures a reliable radial fixation in particular in addition to the axial fixation by fastening screws.

This object is achieved with all features of claim 1. Advantageous developments of the invention are specified in the dependent claims.

The invention includes the technical teaching that the inside of the fitting, which bears against the door leaf when fastened, is provided with a structure which can bring about a positive connection between the inside and the door leaf. Due to the normal forces that arise due to the structure of the invention between the inside of the fitting and the door leaf, the radial forces acting on the fitting when pressing the lock mechanism, at least partially offset. The structure may also increase frictional engagement between the inside and the door panel. Advantageously, the structure allows that even after very frequent operation of the handle, the inside of the fitting immovably remains in its position. Furthermore, the structure prevents the fixing of the fitting on the door leaf from deteriorating over time and the fitting becoming detached.

According to the invention, it can be provided that the structure has at least one fixing dome, in particular two fixing mandrels. The invention thus provides, in addition to the fastening means for the axial attachment of the fitting on the door leaf additional means to prevent loosening of the fitting. For this purpose, additionally raised, point-shaped fixing mandrels are mounted on the level inside of the fitting. Here, a plurality of fixing pins can be arranged at arbitrary locations on the inside. By tightening the fasteners "dig these digging pins in the ground of the door leaf, whereby the fixing mandrels can now support the radial forces form fit against the door leaf.

Advantageously, it can be provided that the structure according to the invention can be described mathematically. The structure can thus have different geometric bodies as raised elements that can be defined mathematically. By way of example, the structure may be formed as any prism, pyramid or cone. It is also conceivable that several fixing mandrels uniformly over the inside can be distributed, which create a rough surface on the inside. Furthermore, it is possible to arrange a plurality of fixing mandrels only in the vicinity of the attachment points in order to increase the positive connection between the fitting and the door leaf in the vicinity of the attachment points. In addition, an optimal geometric shape of the structure, the number of raised elements and their positioning for a particular fitting can be determined in order to optimize the positive connection between the inside and the door leaf. In this determination, the material properties of the structure or of the fitting and the door can also be included in order to adapt a choice of material of the structure of the material of the door leaf and thus to determine the appropriate material pairing.

According to the invention it can be provided that the structure and the inner side form a common monolithic component. It is also conceivable that the structure is mounted on the inside of the fitting. Furthermore, it can be provided that the structure, in particular the fixing mandrels are suitably adapted to the intended use or the material of the door leaf by suitable choice of material or surface refinement. The inside with the structure may be a 2-component injection molded part. Furthermore, it is possible that the structure has a greater material hardness than the inside of the fitting.

In an advantageous alternative embodiment of the present invention, the fixing mandrel may have a contour which is pointed towards the door leaf. Here, the fixing mandrel can be shaped in particular as a cone or pyramid. By tightening the fastener, the fixing mandrel can "dig in" with the pointed free end in the door leaf. This allows the fixing mandrel now derive the radial forces acting in the plane of the inside of the handle, by positive engagement of the fitting to the door leaf. In addition, it can be provided that the connecting path between the tip of the fixing dome and the center of the Base surface of the Fixierdoms, which lies in the plane of the inside, is substantially perpendicular to the inside. It can thereby be achieved that the fixing mandrel penetrates at a right angle into the door leaf in order to allow optimum power transmission when tightening the fastening means.

In a further alternative embodiment of the invention, the fixing mandrel may have a contour which is cut in the shape of a blade towards the door leaf, wherein in particular the fixing mandrel may be wedge-shaped. Further, the fixing mandrel may be embodied as a straight prism having a rectangular quadrangle as a base surface lying in the plane of the inner side and two isosceles triangles as side surfaces. Advantageously, the fixing mandrel can be arranged on the inside, that the longitudinal side of the base surface is perpendicular to the force resulting from the radial forces acting in the plane of the inside of the fitting. In the case of a door handle or key rosette, the force resultant of the radial forces is along the radius of the door rosette. In this case, the longitudinal side of the base of the Fixierdoms be arranged perpendicular to the radius of the inside in this point. As a result, the fixing mandrel optimally counteract the radial forces.

A further advantageous embodiment of the invention provides that the fixing mandrel and the attachment point can lie on a line which intersects the actuating axis of the handle at a right angle. In this case, the fixing mandrel can be arranged close to the fastening point. On the one hand, it can thus be made possible that the force transmission during the fastening of the fastening means to the fixing mandrel is improved. On the other hand, it can be made possible that the release of the fastener is excluded, since the radial forces acting on the fastener, can be optimally intercepted by the nearby fixing mandrel.

Furthermore, two actuation elements and two fixing mandrels can be provided which lie on a line which intersects the actuation axis of the handle, in particular at a right angle. In this case, in each case an attachment point and a fixing mandrel can be arranged symmetrically with respect to the actuation axis on two opposite sides of the inner side. On the one hand, such an arrangement provides a reinforced axial attachment of the fitting. On the other hand, this arrangement also prevents unwanted pivoting of the fitting on the door leaf when a radial force is exerted on the fitting, such as when pressing the door handle or when turning a key in a Schlüsselroseite to act on the lock mechanism.

Advantageously, the structure may be implemented as a rough surface structure. In a preferred embodiment of the present invention, the structure may be uniformly distributed on the inside. In addition, it can be provided that the surface structure can have a plurality of punctiform and / or linearly raised elements. In a further embodiment of the invention, the surface structure may be provided only in the region of the fastening means on the inside, in order to counteract the radial forces targeted in the vicinity of the fastening means. The surface structure may additionally cause a frictional engagement between the inside of the fitting and the door leaf. It is also conceivable to use not only a mathematically describable, but also a stochastic surface structure, in particular depending on the material of the fitting and on the manufacturing process of the fitting. Furthermore, it is conceivable that the structure may have fixation mandrels and a surface structure at the same time in order to effect a frictional connection between the inside of the fitting and the door leaf in addition to the form fit. It can also be provided that the structure is determined only by the friction-increasing surface structure.

A preferred embodiment of the present invention provides an inner surface which may extend annularly about the actuation axis. In this case, a cover surface may be provided within the inside, which serves as a covering means for the lock mechanism. The cover surface may have centrally an opening through which a mandrel of the handle can extend. In this case, the fastening point can be designed as a breakthrough, which lies in the covering surface. According to the invention, the fitting may be formed as a door rosette, which can receive a handle in the form of a door handle or a lock cylinder. The inner side according to the invention can be designed circular or oval according to this alternative embodiment. The ring-like inner side also includes any polygonal inner sides, for example rectangular inner sides of a short or long plate of a door.

According to the invention, the fastening means may be formed as a screw which serves for the axial fixation of the fitting on the door leaf itself or on a further fitting, which is arranged on the opposite Torblattseite. The screws can in this case on the surface of the door leaf, d. H. be fixed directly on the door leaf. Alternatively, the screws can engage in the fitting on the opposite side of the door leaf, wherein when tightening the screws both fittings are braced against each other. In addition, the attachment point may have a threaded bore which is complementary to the thread of the screw.

Figur 1

eine perspektivische Ansicht eines erfindungsgemäßen Beschlages mit zwei Fixierdornen,

Figur 2

eine Seitenansicht des erfindungsgemäßen Beschlages gemäß Figur 1,

Figur 3a

eine perspektivische Ansicht eines erfindungsgemäßen Fixierdoms,

Figur 3b

eine perspektivische Ansicht eines weiteren Ausführungsbeispiels eines Fixierdoms,

Figur 4

eine Draufsicht des erfindungsgemäßen Beschlages gemäß Figur 1, und

Figur 5

eine Draufsicht eines weiteren erfindungsgemäßen Beschlages, der eine definierte Oberflächenstruktur aufweist.

Further, measures improving the invention will be described in more detail below together with the description of the preferred embodiments of the invention with reference to FIGS. Show it:

FIG. 1

a perspective view of a fitting according to the invention with two fixing thorns,

FIG. 2

a side view of the fitting according to the invention FIG. 1 .

FIG. 3a

a perspective view of a fixing dome according to the invention,

FIG. 3b

a perspective view of another embodiment of a fixing dome,

FIG. 4

a plan view of the fitting according to the invention FIG. 1 , and

FIG. 5

a plan view of another fitting according to the invention, which has a defined surface structure.

FIG. 1 and below FIG. 4 show a fitting 1 according to the invention with a structure 4, which causes a positive connection between an inner side 3 and a Törberberfläche to prevent release of the attachment or slipping of the fitting 1. In the illustrated example, the structure 4 comprises two fixing mandrels 5a, each of which has a pointed contour which is shaped as a pyramid. The pointed contour of the Fixierdorne 5a is designed to penetrate when attaching the fitting 1 on the door leaf with its pointed end in the surface of the door panel. Thus, a positive connection between the fixing pins 5a and the door leaf is provided in order to derive the radial forces exerted on the fitting 1 reliably from the fitting 1 to the door leaf.

The two fixing pins 5a lie on a notional line R1, which runs along a diameter of the inner side 3. The fixing pins 5a are in this case arranged symmetrically about an actuating axis 9. The actuating axis 9 determines the extension direction of the guide bearing for a door handle and is aligned perpendicular to the plane of the door leaf. This arrangement of the fixing pins 5a prevents the inner side 3 from moving along the door leaf when forces acting in the plane of the inner side 3 act on it. The fixing pins 5a are arranged in the vicinity of the attachment points 6, which receive attachment means, not explicitly shown, for the axial fixation of the fitting 1 on the door leaf. This requires optimum power transmission when tightening fasteners, so that the fixing pins 5a can easily penetrate into the door leaf material. The inner side 3 extends like a ring about the actuating axis 9 of the handle. The notional line R1, which connects two fixing pins 5a and two fixing points 6, divides the inside 3 into two symmetrical areas. A second fictitious line R2 is shown, which also runs like the fictitious line R1 along a diameter of the inside 3. With the intersection of the fictitious lines R1 and R2, the point is indicated, through which the actuating axis 9 extends and perpendicularly intersects the plane of the inner side 3. Within the inner side 3, a cover surface 10 is provided, which is designed to cover the lock mechanism. The cover 10 has centrally an opening 11 which receives a mandrel of the handle for actuating the lock mechanism. The attachment points 6 can be embodied as apertures which lie in the cover surface 10 and receive the fastening means, not shown here, which can be designed, for example, as screws.

FIG. 2 shows a side view of the fitting 1 according to the invention FIG. 1 having a door handle 2 as a handle. The inside 3 of the fitting 1 in this case rests on a door leaf 13 and is attached to the attachment points 6 on the door panel 13 by means not shown screws. The fixing pins 5a, which are arranged in the vicinity of the attachment points 6, are located in the door leaf material, so that a positive connection between the outer surface of the fixing pins 5a and the material of the door leaf 13 is formed when the screws are tightened. The door handle 2 has a dome 12 which engages in the interior of the door leaf 13 and transmits a rotation on the lock mechanism when pressing the door handle 2. As in FIG. 2 is shown, the fixing mandrels 5 a have a pointed contour, wherein the connecting path between the tip of the fixing mandrel 5 a and the inside 3 runs perpendicular to the surface of the door leaf 13. This ensures that the force when tightening the screws, not shown, can be effectively transferred to the tips of the fixing pins 5a.

FIG. 3a shows a possible fixing mandrel 5a, which is formed as a pyramid 7. The pyramid 7 has a base 7a, which is formed in the illustrated embodiment as a triangle. The connecting path H between a tip S of the pyramid 7 and a center M of the base 7a of the fixing mandrel 5a runs perpendicular to the base 7a. The tip S of the fixing mandrel 5a thereby experiences the greatest force which is exerted when the fastening screws are tightened when the tip S of the fixing mandrel 5a comes into contact with the door surface. The fixing mandrels 5a can easily dig into the surface of the door leaf in this way in order to produce a positive connection with the surface of the door leaf.

The FIG. 3b shows a further embodiment of a fixing mandrel 5a, which has a cut-8 to the door leaf contour, in particular the fixing mandrel 5a is wedge-shaped. The cut-shaped contour 8 is in this case designed as a straight prism having a rectangular quadrangle as a base 8a, which is arranged in the plane of the inside. Furthermore, the contour 8 has two isosceles triangles as side surfaces 8b, which extend perpendicular to the base surface 8a. The fixing mandrel 5 a is arranged on the inside of the fitting such that the longitudinal side of the base 8 a is perpendicular to the force resulting from the radial forces acting on the handle in the plane of the inside of the fitting. This ensures that that the radial forces acting upon actuation of the handle almost perpendicular to the quadrangular side surface of the prism and thus be reliably intercepted by positive locking.

Furthermore, it is conceivable to use different geometric shapes as fixing mandrels, which may have different polygons as a base surface, which for example have an upwardly projecting out of the base surface tip or edge. For example, a cone would be conceivable as a fixing mandrel, wherein the circular base of the cone is arranged on the inside of the fitting. Furthermore, different prisms with blade-shaped edges or pyramids with pointed contours can be used as fixing mandrels.

The FIGS. 4 and 5 show two alternative embodiments of a structure according to the invention 4. According to FIG. 4 the structure 4 has two fixing pins 5a, which are arranged in the vicinity of the attachment points 6 and have a pointed contour in the form of a pyramid 7, as in FIG FIG. 3a is shown. Such a shape and positioning of the fixing pins 5a allows an optimal transfer of force to the tips of the fixing pins 5a when tightening the fastening means. The fixing pins 5a are arranged symmetrically with respect to the center of the inner side 3 in order to effectively counteract a torque which is exerted on the fitting 1 when the lock mechanism is actuated and to prevent the inner side 3 from pivoting relative to the actuating axis 9.

FIG. 5 shows another possible structure 4, which is formed as a rough surface structure 5 b, which comprises a plurality of raised elements, wherein the raised elements are evenly distributed on the inner side 3. Furthermore, the raised elements according to FIG. 5 be formed in the form of points or lines. It is also conceivable that the surface structure 5b is arranged only in the vicinity of the fastening points 6 may be to distract the radial forces targeted by the attachment points 6.

In addition, it is conceivable that the structure 4 both fixing pins 5a according to FIG. 4 as well as a rough surface structure 5b according to FIG FIG. 5 can have.

The fitting 1 according to FIGS. 1, 2 . 4 and 5 can have different shapes. Among other things, the fitting 1 may be formed according to all embodiments as a short or long blade or a key rosette for receiving a lock cylinder to receive a handle for actuating the lock mechanism.

It should be obvious to a person skilled in the art that the invention is not limited in its execution to the preferred embodiments specified above. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use. All of the claims, the description or the drawings resulting features and / or advantages, including design details, spatial arrangements and method steps, both individually and in a variety of combinations, in particular based on FIG. 1 to FIG. 5 be essential to the invention.

LIST OF REFERENCE NUMBERS

1

fitting

2

handle

3

Inside of the fitting 1

4

structure

5a

locking pin

5b

surface structure

6

attachment points

7

pointed contour

7a

Base of the pointed contour 7

8th

sliced contour

8a

Base surface of the cut-shaped contour 8

8b

Side surfaces of the cutting contour 8

9

Actuating axis of the handle 2

10

coverage area

11

opening

12

Thorn of the handle 2

13

door leaf

R1

fictitious line

R2

fictitious line

M

Center of the base 7a

S

Tip of the pointed contour 7

H

Link between the tip S and the midpoint M

Claims (12)

Fitting (1) for receiving a handle (2), which can be fastened to a door leaf (13), in particular a door handle (2), a short or long plate, or a lock cylinder, with a flat inner side (3) facing the door leaf (13) , which extends around an actuating axis (9) of the handle (2), and at least one attachment point (6), in which a fastening means is accommodated, which serves for fixing the inner side (3) on the door leaf (13), characterized in that the inside (3) has a structure (4) which effects a positive connection between the inside (3) and the door leaf (13). Fitting (1) according to claim 1, characterized gekennzeihnet that the structure (4) at least one fixing mandrel (5a), in particular two fixing mandrels (5a), wherein in particular the structure (4) is mathematically writable. Fitting (1) according to claim 1 or 2, characterized in that the structure (4) and the inner side (3) form a monolithic component. Fitting (1) according to one of claims 2 to 3, characterized in that the fixing mandrel (5a) has a door leaf (13) towards pointed contour (7), wherein in particular the fixing mandrel (5a) is formed as a cone or pyramid. Fitting (1) according to claim 4, characterized in that the connecting path (H) between the tip (S) of the fixing mandrel (5a) and the center (M) of the base surface (7a) of the fixing dome (5a), which is in the plane of the inside (3), substantially perpendicular to the inside (3). Fitting (1) according to any one of the preceding claims, characterized in that the fixing mandrel (5a) has a contour (8) which is cut in the shape of a blade towards the door leaf (13), wherein in particular the fixing mandrel (5a) is wedge-shaped. Fitting (1) according to claim 6, characterized in that the fixing mandrel (5a) is a straight prism having a rectangular quadrangle as a base (8a) lying in the plane of the inner side (3) and two isosceles triangles as side faces ( 8b), wherein in particular the fixing mandrel (5a) is arranged on the inner side (3) such that the longitudinal side of the base surface (8a) is perpendicular to the force resulting from the forces acting radially to the actuating axis (9) of the handle (2). Fitting (1) according to one of the preceding claims, characterized in that the fixing mandrel (5a) and the fastening point (6) lie on a line which intersects the actuating axis (9) of the handle (2) at a right angle, wherein in particular the Fixing mandrel (5 a) is arranged close to the attachment point (6). Fitting (1) according to one of the preceding claims, characterized in that two actuating elements (6) and two fixing mandrels (5a) are provided which lie on a line, in particular at a right angle the actuating axis (9) of the handle (2). cuts. Fitting (1) according to any one of the preceding claims, characterized in that the structure (4) is a rough surface structure (5b), in particular evenly distributed on the inside (3) is, in particular, the surface structure (5b) has a plurality of punctiform and / or linearly raised elements. Fitting (1) according to one of the preceding claims, characterized in that the inner side (3) extends around the actuating axis (9) like a ring and a covering surface (10) is provided inside the inner side (3), which has an opening (11) in the center. has, through which a dome (12) of the handle (2) extends, in particular that the attachment point (6), which is designed as an opening, in the cover surface (10). Fitting (1) according to one of the preceding claims, characterized in that the fastening means is designed as a screw which serves for the axial fixing of the fitting (1) on the door leaf (13) or on another fitting which is arranged on the opposite side of the door leaf

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