EP2933403A1 - Fitting for a door leaf of a door - Google Patents

Abstract

The invention relates to a fitting device (10) for a door leaf of a door, comprising at least two rosette bodies (20) for fitting on two different sides of the door leaf, wherein a connecting device (30) extends between the two rosette bodies (20) for torsional reinforcement and two end portions (32a, 32b) fixed to the respective rosette body (20), at least one of the end portions (32a, 32b) overlapping with a connecting portion (22a, 22b) of a rosette body (20).

Description

It is generally known that door leaves of doors are provided with so-called fittings in the form of fitting devices. This is to be understood as the covering of openings for lock cylinders or the covering of passages for handles for opening and closing the door. Known fitting devices are usually formed on both sides of the door leaf, each with a rosette body, which on the one hand fulfills decorative functions, on the other hand brings a protective function with it. For the known rosette body are contacted either attaching to the handle or with the lock cylinder. An attachment directly in the door leaf is also conceivable.

A disadvantage of the known fitting devices and also in known rosette bodies is that they have only a low resistance to vandalism due to their decorative character. In order to ensure appropriate protection against damage from vandalism in particularly vulnerable areas, for example in areas of a prison or in football stadiums, a multi-part embodiment is necessary in known fitting devices. In this case, mechanically reinforcing protective elements are used behind the respective rosette body to ensure greater resistance. In addition to the increased material consumption and the increased production costs, this also leads to a more complex and costly installation of the entire fitting device.

It is an object of the present invention to at least partially overcome the disadvantages described above. In particular, it is an object of the present invention to increase the resistance of the rosette body or of the entire fitting devices in a cost-effective and simple manner.

The above object is achieved by a fitting device with the features of claim 1 and a rosette body with the features of claim 10. Further features and details of the invention will become apparent from the dependent claims, the description and the drawings. In this case, features and details that are described in connection with the inventive fitting device, of course, also in connection with the rosette body according to the invention and in each case vice versa, so that with respect to the disclosure of the individual aspects of the invention always reciprocal reference is or can be.

A fitting device according to the invention for a door leaf of a door has at least two rosette bodies for installation on two different sides of the door leaf. A fitting device according to the invention is characterized in that a connecting device extends between the two rosette bodies for a torsion reinforcement. The connecting device has at least two end portions, which are fastened to the respective rosette body. In this case, at least one of the end portions overlaps with a connecting portion of a rosette body.

According to the invention, the torsional reinforcement and thus the increased resistance to vandalism is no longer ensured by the rosette body, but by the connecting device. The rosette body itself can be formed in one piece and in particular be focused in a cost effective and simple manner on the decorative character of their functionality.

A connecting device is to be understood in the sense of the present invention in that it produces a force-transmitting connection between the two rosette bodies. In other words, when force is applied to one side of the door leaf on one of the two rosette bodies, this force can be supported on the other rosette body via the connecting device on the other side of the door leaf. For this purpose, the connecting device on the mentioned end portions, which already ensure a power transmission possibility between the two rosette bodies by the attachment.

However, in order to provide sufficiently high mechanical resistance to vandalism in accordance with the invention, at least on one of the two rosette bodies, a connecting section is provided for the respective end section of the connecting device. The connecting portion has a function that results in the assembly of the fitting device to an overlap with the respective end portion of the connecting device. If, for example, the individual components of the connecting device extend axially between the two rosette bodies, an overlap occurs between the connecting section and the end section over an axial length. Preferably, the connecting device is also applied off-center, so that the torsion reinforcement allows not only a pure axial force transmission, but also against twisting a torque transmission between the two rosette bodies.

The overlapping between the end portion of the connecting device and the connecting portion of the respective rosette body results in that a relatively large area is provided to initiate the respective force from the rosette body in the connecting device. This undesirable plastic deformation of the connecting device and / or the rosette body can be avoided with high probability. The necessary deformation force, and in particular the force required to forcibly remove the rosette body from the side of the door panel, thereby increases significantly. At the same time, however, no additional effort must be made in the rosette body for this mechanical resistance. Rather, the function of mechanical resistance is transferred to the connecting device, so that simple, cost-effective and especially with regard to the design function optimized rosette body can continue to be used. It is preferred if even existing constructions of rosette bodies can be used, wherein the connection sections are additionally formed on the rear side thereof.

Another advantage of the present invention is that, in a known manner, the assembly can take place simply, quickly and inexpensively. It should be noted that the connecting device extends through the door leaf from one side to the other side. Thus, for example, by additional holes or already an existing hole or opening in the door leaf, a guide of the connecting device between the two rosette bodies can be ensured.

The connecting device can bring about the increase in the resistance in addition to the overlap with the connecting portion in the end portions also via a torsion resistance in cross section with it. For example, the cross-section of the connection device may have a high resistance value, so that a torsion of the connection device is provided with high force resistance. The actual alignment in the axial direction between the two rosette bodies leads to a mechanical stabilization effect by the connecting device.

With regard to the overlap, this can be carried out on both sides. By this is meant that the end portion is disposed respectively within the connection portion, or conversely, the end portion overlaps outside the connection portion. A double overlap inside and outside in both directions is conceivable within the meaning of the present invention. In the axial direction of the connecting device preferably an overlap of more than about 3 mm and less than about 5 mm is advantageous. Within these limits, a sufficient connection stiffening can be achieved without having to take unnecessary influence on the geometry of the door leaf.

It is also advantageous if, in a fitting device according to the invention, the connecting device has two connecting elements, in particular with a round or substantially round cross section. The two connecting elements are laterally spaced from each other and each extending between the two rosette bodies, wherein they are each secured with their end portions on the corresponding rosette body. Of course, three or more connecting elements may be provided for the connecting device. In particular, the Spacing of the two connecting elements laterally relative to each other based on the central axis of the rosette body, so that in both directions in the same way and with the same lever arm torque support over the two connecting elements is possible. For the purposes of the present invention, fastening means a reversible or irreversible attachment. In particular, an attachment can be made with screw means, as will be explained in more detail later. For example, an internal thread can be used, in which from the outside of the respective rosette body for fastening a screw is screwed. The individual connecting elements can be formed from solid material or from a hollow material. It is preferred if the connecting elements are designed with round or square cross-section than inside hollow sleeves, to allow a particularly simple and cost-effective production.

It is likewise advantageous if, in a fitting device according to the invention, all the end sections of the connecting device overlap in a contacting manner with a respective connecting section of the respective rosette body, in particular being inserted into the connecting section. The functionality of increasing the resistance in accordance with the invention is largely based on the overlap of the respective end section with the connecting section. Due to the fact that, according to this embodiment of the fitting device according to the invention, all the end sections now have the corresponding overlapping functionality, this increase in resistance for all connecting devices or connecting elements is provided in a cost-effective and simple manner. This results in a further increase in the resistance of the entire fitting device. In particular, for both Rosette body and also for all fasteners of the connecting device identical parts are used, so that the production of the individual components is inexpensive and easy. It is further preferred if a symmetrical, in particular rotationally symmetrical design of the components and their arrangement in the fitting device is provided. Moreover, a connection between the end portions and the connecting portions is also conceivable, for example by screwing or, in particular, by gluing, in order to achieve a still further improved stability.

It is likewise advantageous if, in a fitting device according to the invention, the connecting device, in particular the connecting elements of the connecting device, have a thread at their end sections and / or in the region of their end sections, in particular an internal thread. With such a thread, a corresponding fastening function can be achieved. For example, from outside the rosette through an opening a corresponding screw or a screw means can be screwed into the thread. Thus, the attachment is generated in a reversible manner. The thread is in particular a standard thread, preferably a metric standard thread. Thus, the assembly can be carried out quickly and easily and inexpensively in this way by untrained personnel.

It is also advantageous if in a fitting device according to the invention for fastening the end portions of the connecting device to the rosette bodies screwing means are used with a screw interface with a deviating from the circular shape and in particular from the standard screw Contour. A screw means, which is designed, for example, as a screw with a screw head, has a screw interface in order to introduce the necessary tightening torque into the screw means. For this purpose, a deviation from the circular shape is an advantage. By deviating from standard screw interfaces an increased protection against unwanted removal is given. For example, similar to a rim lock, a unique and specific contour for the screw interface can be made available. It is also possible to use unusual standard screw interfaces, such as a Torx interface, for example, in which additional contour sections, for example in the form of a security pin, enable this increased security functionality.

It is also advantageous if, in a fitting device according to the invention at least one rosette body has a receiving opening with a guide arranged therein for a handle, wherein a securing device is provided against axial withdrawal of the handle from the guide. In addition to the use of a fitting device according to the invention for covering the sides of a lock cylinder, such a fitting device can be designed completely or at least in sections also for the lateral covering of a handle in the form of a door handle. In this case, this handle extends in sections into a corresponding receptacle of the rosette body. Such a guide, which may also be designed as a guide bush, is used for introducing and securing the handle. The security device now serves to provide additional resistance to vandalism. So not only a lateral mechanical action on the rosette body, but also a strong pulling on the handle for Cause destruction or damage. The safety device now prevents axial withdrawal of the handle and thus allows an increased safety function even with vandalism.

A fitting device according to the preceding paragraph can be further developed such that the guide is fastened to the rosette body via a fastening section, in particular by cold forming. In this case, the securing device has a counter ring, which is attached to the guide, in particular by pressing, and covers the attachment portion at least partially contacting. In order for a preferably complete coverage can be ensured. For example, cold forming in the form of a crimping process can be used. In terms of functionality, this means that when pulling out or attempting to pull out the handle this mating ring plastically deformed and thus blocks further withdrawal. This can cost-effective and easy backup against vandalism in a fitting device according to the invention can be further improved.

It is also advantageous if, in a fitting device according to the invention, at least one of the end sections, which are formed in a contact-overlapping manner with the respective connecting section, has a surface structure that improves the friction. For example, a knurling may be provided, so that when introducing the end portion in the overlapping position with the connecting portion has a higher friction, so that when screwing from the outside co-rotation of the end portion and thus the respective connecting element is avoided with high probability. This is no longer necessary to counteract, so that at completely concealed position of the connecting device a screw mounting is possible.

It is also advantageous if, in a fitting device according to the invention, at least one of the rosette bodies is formed according to the rosette body according to the invention of the following paragraphs. Thus, a fitting device according to the invention brings the same advantages, as will be explained in more detail below. Likewise subject of the present invention is a rosette body for a fitting device, in particular according to the present invention, for a door leaf of a door, comprising a base body with a contact portion for abutment with the door leaf and a decor portion, which is visible in abutting the door leaf contact portion. A rosette body according to the invention is characterized in that the contact section and the decorative section are formed integrally with the main body. Contrary to known solutions for rosette body can now be ensured in particular at low cost and easier integral training of the rosette body in particular by the use in a fitting device according to the invention, the high security functionality. Thus, such a rosette body brings the same advantages as they have been explained in detail with respect to a fitting device according to the invention.

A rosette body according to the invention can be further developed such that the base body has a minimum wall thickness which is ≥ 2 mm. It is a range of about 2 mm, in particular, the minimum wall thickness ≤10 mm, preferably ≤5 mm, is formed. In particular, the minimum wall thickness is in the range between about 2 mm and about 3 mm. This represents an optimum in terms of easy and inexpensive manufacturability and increases the strength function according to the present invention.

Further, it is advantageous if, in a rosette body according to the invention, the base body is designed as a precision casting workpiece. This leads to a particularly cost-effective and simple production. Thus, stainless steel or another high-quality material can be used, and by possible post-processing of the decorative section a desired high-quality surface can be achieved. Such post-processing steps may be, for example, milling steps, grinding steps and / or polishing steps.

Fig. 1

eine erste Ausführungsform einer erfindungsgemäßen Beschlagvorrichtung,

Fig. 2

eine weitere Ausführungsform erfindungsgemäßer Beschlagvorrichtungen,

Fig. 3

eine weitere Ausführungsform einer erfindungsgemäßen Beschlagvorrichtung,

Fig. 4

die Ausführungsform der Fig. 1 während der Montage,

Fig. 5

die Ausführungsform der Fig. 3 während der Montage,

Fig. 6

eine Variation der Ausführungsformen der Fig. 1 und 4,

Fig. 7

eine Ausführungsform eines Schraubmittels und

Fig. 8

eine Ausführungsform einer Sicherungsvorrichtung.

Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, embodiments of the invention are described in detail. The features mentioned in the claims and in the description may each be essential to the invention individually or in any desired combination. They show schematically:

Fig. 1

a first embodiment of a fitting device according to the invention,

Fig. 2

a further embodiment of inventive fitting devices,

Fig. 3

a further embodiment of a fitting device according to the invention,

Fig. 4

the embodiment of the Fig. 1 during assembly,

Fig. 5

the embodiment of the Fig. 3 during assembly,

Fig. 6

a variation of the embodiments of Fig. 1 and 4 .

Fig. 7

an embodiment of a screw means and

Fig. 8

an embodiment of a securing device.

The Fig. 1 and 4 show first embodiments of fitting devices 10. These are the same for both the cover of a cylinder lock, as well as for the covering of a handle 60 on both sides of the door leaf. Thus, two rosette bodies 20 are provided, which are designed to rest on two different sides of a door leaf. These rosette bodies 20 are equipped with a main body 26, which has an outwardly directed decor section 26b and an inwardly directed abutment section 26a.

For increasing the resistance, for example against vandalism, a connecting device 30 is provided here for both fitting devices 10. This connecting device 30 has in each case two connecting elements 34a and 34b. Each of these connecting elements 34a and 34b, which are laterally spaced apart, has an end portion 32a at the first end and an end portion 32b at the second end. All end portions 32a and 32b are in overlapping manner within connecting portions 22a and 22b of the two rosette bodies 20. If a mechanical interference from the outside of the rosette body 20 occurs in assembled manner, the applied force can be applied to the two via the individual connecting members 34a and 34b Rosette body 20 are distributed, and in particular be supported on the door leaf. Thus, the described invention increase the resistance can be ensured.

Again Fig. 1 and the Fig. 4 can be further seen, an attachment of the individual fasteners 34a and 34b by screw means 40 from the outside of the rosette body 20 can take place. For this purpose, the two connecting elements 34a and 34b each have a thread 36 in the form of an internal thread into which the screw means 40 can be screwed.

In Fig. 2 an alternative solution of the fitting devices 10 is shown, which differs from the embodiment of the Fig. 1 and 4 distinguished by the geometric design of the rosette body 20.

The Fig. 3 and 5 moreover, show a solution in which the fitting device 10 can be used for a cylinder lock, as well as for the handle 60 in a common manner. In this embodiment, additionally a backup plate 80 is inserted, which is able to provide protection against drilling. Again, however, the same increase in the resistance is given in accordance with the invention.

In Fig. 6 is a variation of the solution Fig. 1 and 4 shown in which the handle 60 is designed only on the right side for opening and closing the door. The handle 60 on the left side is a non-openable knob in this embodiment.

The Fig. 7 shows a possibility of a screw 40 with a screw 42 with a locking pin, which avoids that an unwanted, unauthorized dismantling of the fitting device 10 is possible.

Fig. 8 shows in schematic cross section a backup option of the handle 60, as in the embodiment of the Fig. 5 can be seen. Thus, the handle 60 is inserted into a guide 50, which is formed here by a receiving socket 52 and a guide bushing 54. The receiving socket 52 extends into the rosette body 20 inserted, so that on the opposite side of the securing device 70 can be attached with a retaining ring 74 and a counter-ring 72. In the axial tensile test, this leads to the deformation of the counter-ring 72 and thus by this plastic deformation to a backup against this axial tensile test.

The above explanation of the embodiments describes the present invention solely by way of example. Of course, individual features of the embodiments, if technically feasible, can be combined freely with one another, without departing from the scope of the present invention.

LIST OF REFERENCE NUMBERS

10

fitting device

20

rosette body

22a

connecting portion

22b

connecting portion

24

receiving opening

26

body

26a

contact section

26b

decor section

30

connecting device

32a

end

32b

end

34a

connecting element

34b

connecting element

36

thread

38

surface structure

40

screw

42

Schraubschnittstelle

50

guide

52

receiving socket

54

guide bush

56

attachment section

60

handle

70

safety device

72

counter ring

74

circlip

80

locking plate

Claims (12)

Fitting device (10) for a door leaf of a door, comprising at least two rosette bodies (20) for fitting on two different sides of the door leaf, characterized in that a connecting device (30) extends between the two rosette bodies (20) for torsional reinforcement and two End portions (32a, 32b) which are fixed to the respective rosette body (20), wherein at least one of the end portions (32a, 32b) with a connecting portion (22a, 22b) of a rosette body (20) overlapping contacting. Fitting device (10) according to claim 1, characterized in that the connecting device (30) has two connecting elements (34a, 34b), in particular with a round or substantially circular cross-section, the laterally spaced from each other between the two rosette bodies (20) extend and in each case with their end portions (32a, 32b) are fastened to the corresponding rosette body (20). Fitting device (10) according to one of the preceding claims, characterized in that all end portions (32a, 32b) of the connecting device (30) with a respective connecting portion (22a, 22b) of the respective rosette body (20) overlap contacting, in particular in the connecting portion (22a , 22b) are inserted. Fitting device (10) according to one of the preceding claims, characterized in that the connecting device (30), in particular the connecting elements (34a, 34b) of the connecting device (30), at their end portions (32a, 32b) and / or in the region of their end portions ( 32a, 32b) have a thread (36), in particular an internal thread. Fitting device (10) according to one of the preceding claims, characterized in that for fastening the end portions (32a, 32b) of the connecting device (30) on the rosette bodies (20) screw means (40) are used with a screw interface (42) with one of the circular shape and in particular of standard screw interfaces deviating contour. Fitting device (10) according to one of the preceding claims, characterized in that at least one rosette body (20) has a receiving opening (24) with a guide (50) arranged therein for a handle (60), wherein a securing device (70) against axial withdrawal the handle (60) is provided from the guide (50). Fitting device (10) according to claim 6, characterized in that the guide (50) via a fastening portion (56), in particular by cold forming formed on the rosette body (20) is fixed, wherein the securing device (70) has a counter-ring (72) , which is fixed to the guide (50), in particular by pressing and covers the attachment portion (56) at least partially contacting. Fitting device (10) according to any one of the preceding claims, characterized in that at least one of the end portions (32a, 32b), which are formed in contact overlapping with the respective connecting portion (22a, 22b), an adhesion friction-increasing surface structure (38). Fitting device (10) according to one of the preceding claims, characterized in that at least one of the rosette twine (20) is formed with the features of one of claims 10 to 12. Rosette body (20) for a fitting device (10), in particular with the features of one of claims 1 to 9, for a door leaf of a door, comprising a base body (26) with a contact portion (26a) for engaging the door leaf and a decorative portion (26b ), which is visible in abutting on the door leaf abutment portion (26 a), characterized in that the abutment portion (26 a) and the decor portion (26 b) are formed integrally with the base body (26). Rosette body (20) according to claim 10, characterized in that the base body (26) has a minimum wall thickness which is greater than or equal to about 2 mm. Rosette body (20) according to any one of claims 10 or 11, characterized in that the base body (26) is formed as a precision casting workpiece.

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