EP2775066B1 - Swiveling locating disc - Google Patents

Description

The present invention relates to a mounting tool and a corresponding method, in particular for flush mounting a cover in a recess in an insulating material.

For the attachment of insulation material to a substrate called Dämmstoffhalter be used, which consist essentially of a plate and a dowel sleeve. For the installation, an opening, which is also referred to as a borehole, is first created by the insulating material in the substrate. Subsequently, the insulation holder is inserted into the opening and by the introduction of an expansion element in the dowel sleeve of the lower portion of the dowel sleeve is spread and thus anchored the insulation holder in the ground. Through the plate of the insulation holder of the insulation material is held on the ground.

In various applications, the plate of the insulating material holder is arranged in a recess in the insulating material. This recess may arise during assembly of the insulation holder or may have been formed prior to assembly in the insulation. After mounting the insulation holder, the recess in the insulation material is usually filled with a material, so that the attachment points of the insulation material is not visible on the outside and complicate plastering, and to avoid the cause of thermal bridges. Thus, for example, after mounting a cover by the fitter by hand in the recess can be arranged. As a cover, for example, a rondel made of insulating material can be used. But other covers can be used as well For example, a cover similar to a concealed cover, as used in the interior.

For mounting the insulation holder and the subsequent closing of the recess mounting tools are known in the art. With the help of such assembly tools, the insulation holder can be mounted in one operation and the recess can be closed with a cover. EP 2 378 019 A2 describes, for example, a mounting tool for recessed mounting of an insulation holder in an insulation board.

However, such tools and methods have the disadvantage that for a surface-flush arrangement of the cover, the borehole must run exactly at right angles to the insulation surface. However, this can not always be ensured when mounting on construction sites. But if the insulation holder in not perpendicular to the surface running holes by means of in EP 2 378 019 A2 mounted mounting tool is mounted, the cover can not be arranged flush with the surface. The cover then stands on one side out of the insulation surface or the surface of the cover forms together with the walls of the recess a recess in the insulation. The resulting unevenness in the insulation surface must be compensated manually, in an additional operation, for example by grinding.

The object of the present invention is therefore to provide an assembly tool and a corresponding method, which allow a surface flush arrangement of the cover plate even when mounting the insulation holder in not perpendicular to the insulation surface extending boreholes.

This object is achieved by the assembly tool according to claim 1 and by the method for flush mounting a cover plate according to claim 10.

The assembly tool according to the invention for flush mounting a cover in a recess in an insulating material, has a drive train and a stop disc. The drive train has means for connecting to a drive tool in a first end region and means for releasably connecting to a spreading element in a second end region. The second end region faces the first end region. The stop disc is configured to dispose a cover disc arranged between the second end region of the drive train and the stop disc in the recess in the insulating material. According to the stop disc is pivotally mounted on the drive train.

The inventively pivotally arranged on the drive train stop disc makes it possible to close a recess in an insulating material flush with a cover plate, even if this would not be possible with the use of a fixedly arranged on the drive train stop plate. In the following, the operation of the invention will be described by way of example with reference to a non-perpendicular to the insulation surface extending borehole. However, the assembly tool according to the invention and the method according to the invention can also be advantageously used in other situations, for example if, for some other reason, the drive train of the assembly tool does not extend at right angles to the surface of the insulation material during assembly.

In the stop discs known in the art, the cover plate is retracted during the assembly process at right angles to the extension of the borehole in the recess in the insulating material. However, if the borehole does not extend at right angles to the surface of the insulating material, this will cause the cover plate either to protrude from the surface of the insulating material in the assembled state or to form a depression in the surface of the insulating material at one point.

For example, if the borehole does not extend at right angles to the surface of the insulation, but deviates from the right angle by 10 degrees, this will cause the cover to be approximately 0.5 cm from a spot at a diameter of 6 cm, for example the insulating surface would protrude and at an opposite location the cover would form a recess of approximately 0.5 cm in the surface of the insulation. This supernatant and the depression must then be compensated manually in an additional step, for example by grinding, or by filling the depression with a suitable filler.

When using the assembly tool according to the invention, this is not necessary. With the help of the assembly tool according to the invention, a cover can be arranged, for example as follows in a recess in an insulating material. Before arranging the cover, for example, a borehole is drilled through the insulating material into the ground. This hole should extend at right angles to the surface of the insulation. On construction sites, however, it happens again and again that such holes are skewed, that is deviate from the vertical by a certain angle. This angle is preferably less than 20 degrees and more preferably this angle is less than 10 degrees. In such a well then an insulation holder can be arranged or set. An example of an insulation holder which may be used in connection with the present invention is disclosed in U.S.P. EP 1 318 250 A2 described. The insulation holder may for example consist of a dowel sleeve, a retaining plate and a spreader. The dowel sleeve may, for example, have a spreading zone for holding the dowel sleeve in the borehole. The expansion element can for example be arranged partially in the dowel sleeve and can have spreading means for spreading the expansion zone of the dowel sleeve at one end.

In an example, the holding plate, which in this example has cutting means on the side facing the insulating material, lies on the Insulation on. By means of these cutting means on the retaining plate, the retaining plate can produce a recess in the insulating material during the assembly process. In another example, the recess could be formed prior to setting the insulation holder, so that the retaining plate of the insulation holder can then be placed directly in the recess in the insulation.

After setting the assembly tool according to the invention can be placed together with a cover on the insulation holder, so that an end portion of the drive train of the assembly tool is non-positively connected to the expansion element of the insulation material holder. For example, the end region of the drive train can be directly in connection with the expansion element. Also, the expansion element or the region of the expansion element, which is in communication with the end region of the drive train may be encapsulated with a plastic. Alternatively, the drive train and the expansion element can be indirectly connected to each other, for example by means of at least one intermediate component. The intermediate component is then preferably non-positively connected to the drive train and the spreader. An example of an intermediate component is an insulating plug disposed in the dowel sleeve.

With the help of the assembly tool according to the invention, the expansion element can be moved forward. This forward movement is also referred to as driving. The expansion element can be moved, for example, by means of an outgoing from a drive tool and transmitted via the drive train rotational movement into the ground, so that it penetrates into the dowel and spreads this. This drive tool may be, for example, a drill, the drill chuck can be connected, for example by means of a suitable coupling with the drive train. However, the drive train may also be part of the drive shaft of the drill. In another example, the drive tool may also be a screwdriver or other tool by hand a rotational movement can be passed to the drive train.

As already explained above, the formation of the recess in the insulating material can take place, for example, before setting the insulating material holder or when driving in the expansion element. If the formation of the recess is to take place during driving, the holding plate for this purpose can have a cutting means with which the recess is formed in the insulating material. The cutting means can be formed for example by a cutting ring, with which the insulating material can be cut approximately at the periphery of the retaining plate. The intermediate insulating material can then be pressed by the retaining plate, that is to be compressed. Alternatively or additionally, the cutting means may be disposed on the insulating material side facing the retaining plate and with the aid of the cutting means, the insulating material can be at least partially solved under the retaining plate. Such a release of insulating material is for example also referred to as milling. The cutting means may be formed by protrusions, for example. When milling, the projections may be, for example, ribs or tips.

By the forward movement of the expansion element and the cover is moved into the Dämmstoffausnehmung. In one embodiment of the invention, the cover plate is arranged for this purpose on the drive train of the assembly tool. The cover can be moved for example by means of the stop plate of the mounting tool in the Dämmstoffausnehmung. If the borehole is not perpendicular to the surface of the insulation, only one side of the cover initially touches the insulation material. If the assembly tool is then moved further, this side of the cover does not move in the same manner as the assembly tool in the insulation material. Due to the pivotable stop disc arranged underneath cover plate is tilted relative to the drive axis until at least almost the entire circumference of the cover touches the insulation material and aligned the cover and the stop plate parallel to the surface of the insulating material is. As a result of the further forward movement of the assembly tool, the cover disk is then arranged flush with the surface in the recess in the insulation material, even if the borehole is not aligned at right angles to the surface of the insulation material.

The stop disc is pivotally mounted on the drive train. Pivoting means that the stop disc can perform an angular change between the stop plate and the drive train, which is also referred to as tilting.

In order to enable the tilting of the cover plate relative to the drive train, the assembly tool according to the invention should be used together with cover plates whose opening in the middle is larger than the diameter of the drive train. Alternatively, the cover may at least partially consist of a deformable material. For example, the cover may be a molded from insulating Rondelle.

In a preferred embodiment, the stop disc is releasably secured to the drive train. This allows, for example, a removal, replacement or displacement of the stop plate. For example, the stop disc can be separated from the drive train by means of a detachable clamping connection. In an alternative embodiment, by removing a union nut with which the stopper disc is attached to the drive train, the stopper disc can be released from the drive train. This releasable attachment allows a quick and easy retooling or moving stop plates.

In a further preferred embodiment, the stop disc is arranged pivotably on the drive train with the aid of a ball joint. Due to the geometry of the ball joint a rotational movement in all directions is possible in principle. This allows unimpeded pivoting of the stopper disc to a defined by the ball joint pivot point, so that the cover plate can be arranged flush with the surface of the insulating material.

In yet another preferred embodiment, the ball joint is connected by means of a releasable clamping connection with the drive train. This releasable clamping connection allows, for example, a translational movement of the stop plate along the drive train of the assembly tool, and its pivot point along the drive train. This releasable clamping connection allows the adjustment of the mounting tool for use with different deep-seated expansion elements in, for example, different types of insulation material holders and also different thicknesses of cover plates. In addition, along the drive train and length gradations may be provided, for example in the form of annular recesses. These length graduations allow the releasable clamp connection to snap into place at predefined positions along the drive train, allowing for faster adjustment to different types of insulation holders and also to different cover thicknesses.

In yet another preferred embodiment, the drive train is made of metal. During the assembly process, the drive train can be subjected to strong mechanical stresses by the movement transmitted to the expansion element via the drive train. Metal is characterized by a high mechanical strength. Alternatively, the drive train may also be made of another material, such as plastic for example. Plastic is particularly suitable for use with a lower load on the drive train.

In a further preferred embodiment, the stop disc is rotatably arranged on the drive train. This rotation can be made possible for example by the ball joint described above. The stop disc is rotatable if it can move independently of the rotational movement of the drive train. For example, the rotatable stop disc can be rotated opposite to the direction of rotation of the drive train. But it can be Turn the stop disc with the rotation of the drive train, especially when no external forces act on the stop plate. This rotation of the stop disc causes when the stop disc touches the insulation surface during the assembly process, the stop disc no longer rotates with the direction of rotation of the drive train due to the increasing friction or the resistance of the insulating surface and thus does not pass on the rotational movement of the drive train on the cover. This leads to improved assembly results. In one example, however, the stop disc can also be positively coupled to the drive train, for example by means of a slip clutch. By means of such a coupling, the rotational movement can be passed to the cover. This is advantageous, for example, if the cover disk has a thread on its circumference, which can cut into the insulation material upon rotation of the cover disk.

In a further preferred embodiment, the diameter of the stop disc is greater than the diameter of the cover. Thereby, the stopper disc, when the insulation holder is arranged in a not drilled at right angles to the insulation surface hole in the assembly process, with one side, beyond the periphery of the cover beyond, rest on the insulation surface and the pivotal arrangement of the stop plate itself and the cover Align parallel to the insulation surface. A stop disc with a larger diameter than the cover also prevents the cover disc recessed and thus is not placed flush with the surface in the recess.

In yet another preferred embodiment, the stop disc has a round geometry. A round geometry is also preferred as the geometry of cover plates and retaining plates. In another example, however, the stop disc may also have a different geometry, such as triangular, quadrangular or polygonal.

In a further preferred embodiment, the stop disc is made of plastic. Plastic is a cheap and easy-to-process material with a low weight. Furthermore, because the stopper disc is in contact with the insulating surface, plastic has the advantage that it leaves no contaminants, such as traces of flying rust, as with alternative metal elements, on the surface of the insulation. In principle, however, the stop disc can also be made of any other material in order to meet the mechanical requirements of the respective assembly process. Also, powertrain and stopper disc can be made of different materials. This makes it possible, for example, to manufacture the drive train and the stop disc from materials with different hardness ratios, in order to optimize the cost-benefit ratio.

The inventive method for flush mounting a cover in a recess in an insulating material has the following steps: First, a first end portion of a drive train of a mounting tool is connected to a spreader. Thereafter, the expansion element can be advanced by means of a drive tool arranged at a second end region of the drive train, wherein the second end region lies opposite the first end region. At the same time, a cover plate is moved forward by means of a drive pulley arranged stop disc in the recess in the insulation material. By pivoting the stop disc, the cover plate is arranged flush with the surface of the insulating material.

Fig. 1a, 1b:

Seitenansichten einer beispielhaften Ausführungsform des erfindungsgemäßen Montagewerkzeugs mit der Anschlagscheibe in einer Position senkrecht zur Drehachse des Antriebsstrangs und mit der Anschlagscheibe in einer geschwenkten Position, das heißt in einer Position in der die Anschlagscheibe nicht senkrecht zu der Drehachse des Antriebsstrangs angeordnet ist;

Fig. 1c:

eine Querschnitt-Detailansicht des in den Figuren 1a und 1b gezeigten erfindungsgemäßen Montagewerkzeugs, in der das Kugelgelenk und die lösbare Klemmverbindung zu sehen sind, und

Fig. 2a, 2b, 2c:

Querschnitte der beispielhaften Ausführungsform des erfindungsgemäßen Montagewerkzeugs zusammen mit einem beispielhaften Dämmstoffhalter und einer beispielhaften Abdeckscheibe während des Montagevorgangs.

In the following, the assembly tool according to the invention and the method according to the invention for flush mounting of a cover in a recess in an insulating material are explained in more detail by way of example with reference to the embodiment shown in the following figures. Show it:

Fig. 1a, 1b:

Side views of an exemplary embodiment of the assembly tool according to the invention with the Stop disc in a position perpendicular to the axis of rotation of the drive train and with the stop disc in a pivoted position, that is, in a position in which the stop disc is not disposed perpendicular to the axis of rotation of the drive train;

Fig. 1c:

a cross-sectional detail of the in the FIGS. 1a and 1b shown assembly tool according to the invention, in which the ball joint and the releasable clamping connection can be seen, and

2a, 2b, 2c:

Cross sections of the exemplary embodiment of the assembly tool according to the invention together with an exemplary insulation holder and an exemplary cover during the assembly process.

FIG. 1a shows a side view of an exemplary embodiment of the assembly tool 1 according to the invention.

In the FIG. 1a shown embodiment of the assembly tool 1 consists of a drive train 9 with a means 10 for connecting the drive train 9 with a drive tool (not shown) at a first end portion of the drive train 9 and a means 11 for releasably connecting the drive train 9 with a spreader 6 (in FIGS. 2a to 2c shown) at a second opposite end portion. The assembly tool 1 also has a stop plate 12. The task of this stop plate 12 is a cover (in FIGS. 2a to 2c shown), which can be arranged between the second end portion of the drive train 9 and the stopper plate 12, to be arranged in a recess in an insulating material 8 (in FIGS. 2a to 2c shown). For this purpose, the stop disc 12 in the embodiment shown has a substantially smooth surface on the side facing the second end region. The skilled person, however, are also possible Embodiments of the stopper plate 12 with which this purpose can be fulfilled known.

In FIG. 1a Also illustrated is an exemplary embodiment of the means 10 for connecting the powertrain 9 to a drive tool. In this embodiment, the means 10 for connecting the drive train 9 is realized by a hexagonal profile at a first end portion of the drive train 9, so that a corresponding drive tool with a hexagon socket simply rotation to the spreader 6 (in FIGS. 2a to 2c shown). For example, a replaceable screw bit that is clamped in a drill chuck of a drilling machine could have such a hexagon socket profile.

FIG. 1a also shows an example of a means 11 for releasably connecting the drive train 9 with a spreader 6 (in FIGS. 2a to 2c shown). This may for example be a spreading element 6 of an insulation holder 3, as in the FIGS. 2a to 2c shown. In principle, the means 11 for detachably connecting the drive train 9 can be connected directly or indirectly to a spreading element 6. In one embodiment, the means 11 for releasably connecting, for example, be connected to a component of the insulation holder 3, which is directly or indirectly connected to the spreader 6 positively. In the embodiment shown, the means 11 for releasably connecting the drive train 9 with the expansion element 6 is formed by a torx screw driving profile. This driving profile can, for example, be frictionally engaged with a corresponding profiling on the expansion element 6.

However, the person skilled in the art knows a large number of possibilities as to how the means 10 for connecting the drive train 9 to a drive tool and the means 11 for releasably connecting the drive train 9 to a spreading element 6 can be realized. For example, these means 9, 10 by various indoor or External profiles, such as slot, Phillips, Robertson profiling, etc. be executed.

Preferably, the drive train 9 in the in FIG. 1a shown exemplary embodiment of metal and the stopper plate 12 made of plastic. The drive train 9 and the stopper plate 12 may also be made of other materials.

FIG. 1a shows the stopper plate 12 in its initial position perpendicular to the drive train. 9

FIG. 1b illustrates that the in FIG. 1a shown embodiment after the stop plate 12 has been pivoted, that is tilted relative to the drive train 9, so that there are areas in which the stop plate 12 is no longer aligned perpendicular to the drive train 9.

Figure 1c shows a cross-sectional detail of the in the FIGS. 1a and 1b shown embodiment of the suspension of the stopper plate 12 on the drive train 9. In the in the FIGS. 1 embodiment shown, the suspension is realized via a ball joint 13. The ball joint forms a pivot about which the stopper plate 12 can rotate, or can be pivoted. In other words, by which the plane of the stopper plate 12 can be tilted. The joint socket of the ball joint 13 is formed by a corresponding profile in the stop plate 12 and the condyle of the ball joint 13 is by means of a in the FIGS. 1 shown union nut held in the socket. The ball joint 13 is located as in the in Figure 1c shown embodiment, on a sleeve which can be pushed onto the expansion element 6. The sleeve has a spherical thickening, which forms the condyle. The sleeve may also have an external thread on which in turn a nut can be rotated. The external thread and the nut then together form the clamping connection 14. By means of this clamping connection 14, the position of the ball joint 13 and thus also the position of the Stop disc 12 are fixed to the drive train 9. For this purpose, the sleeve has at least one slot which extends at least partially over the length of the sleeve body, so that the sleeve body can press against the drive train 9 when a nut is rotated onto the external thread of the sleeve.

The Figures 2 show cross-sectional views of an exemplary embodiment of the assembly tool 1 according to the invention together with an insulation holder 3 and a cover 2 during the assembly process. In the in FIG. 2a In the embodiment illustrated, the insulation holder 3 is first inserted into a previously drilled borehole which has been drilled through the insulation material 8 into the substrate 15. In the in FIG. 2a In the embodiment shown, the borehole was not made perpendicular to the surface of the insulation. This has the consequence that the retaining plate 4 of the insulating material holder 3 protrudes from the surface of the insulating material on one side of its end face. Further shows FIG. 2a the patch on the insulation holder 3 mounting tool 1, the drive train 9 is non-positively connected to a spreading element 6 of the insulation holder 3. In the in the Figures 2 shown embodiment, drive train 9 and 6 spreader are directly connected. The drive train 9 and the expansion element 6 can also be connected indirectly via an intermediate component. In the in FIG. 2a shown embodiment is also shown that there is a cover 2 between the stopper plate 12 of the mounting tool 1 and the retaining plate 4 of the insulation holder 3. Preferably, the cover 2 consists of the same insulating material as the surrounding insulating material 8 so as to achieve an insulating material surface with a homogeneous insulation factor in the mounted state. The cover 2 may also consist of other materials, such as plastic. In the in the Figures 2 In the embodiment shown, the cover plate 2 has a central opening which widens in the direction of the insulation holder 3 and through which the drive train 9 of the assembly tool 1 extends.

FIG. 2b shows the embodiment of the mounting tool 1 during the driving of the expansion element 6. The creation of a recess 7 can be made in different ways. For example, by driving the expansion element 6, the holding plate 4 of the insulating material holder 3 can be moved into the insulating material 8 and a cutting means arranged on the holding plate 4 can cause the insulating material 8 to be cut on the circumference of the holding plate 4. The lying under the retaining plate 4 insulating material 8, which was partially separated by the cutting of the remaining insulating material 8, can be compressed so when driving the expansion element 6 by the moving in the insulating material 8 holding plate 4. In the embodiment shown, the resulting recess 7 is still during the assembly process by the cover 2, which is moved by the stopper plate 12 in the recess 7, closed. The skilled person is still a variety of other ways known how the recess 7 can be introduced into the insulating material 8. For example, the recess 7 can be created by means of a suitable milling tool before the assembly process.

As in FIG. 2b is shown by the driving of the expansion element 6 in the dowel sleeve 5 and the cover 2 is moved into the recess 7. First, only one side of the cover 2 touches an inner wall of the recess 7 in the insulating material 8 and / or one side of the stopper plate 12 touches the insulating material 8. By one of these touches the stop plate 12 and thus also arranged underneath cover 2 is tilted or tilted, so that they align the stopper plate 12 and the cover 2 parallel to the surface of the insulating material 8.

Figure 2c shows the in FIGS. 2a and 2b shown embodiment of the mounting tool 1 with the cover 7 and the stopper plate 12 after the completion of assembly. In the embodiment shown, the completion of the assembly is also indicated to the user by the drive pulley 9 being axially positioned by the emergence of the stop disk 12, thus preventing the drive train 9 from continuing to run in the direction of the insulating material 8. This will be the Adhesion between the drive train 9 and the expansion element 6 of the insulation holder 3 repealed. Thus, too deep driving the expansion element 6 and the associated destruction of the insulation holder 3 can be avoided.

After completion of the assembly, the cover plate 2 is aligned flush with the surface of the insulating material 8.

As a result of this assembly, even in the case of a borehole which is not oriented perpendicularly to the surface, a cover plate 2 could be arranged flush with the surface in a recess 7 in the insulating material 8.

Claims (10)

1. A mounting tool (1) for flush-arranging a covering disc (2) in a recess (7) in an insulating material (8), comprising:

   a drive shaft (9), wherein the drive shaft (9) comprises in a first end section means (10) for connecting it to a drive tool and comprises in a second end section means (11) for releasably connecting it to an expansion element (6),

   wherein the second end section is located opposite the first end section, and

   a stop disc (12) adapted to arrange a covering disc (2) that is arranged between the second end section of the drive shaft (9) and the stop disc (12) in the recess (7) in the insulating material (8), wherein the stop disc (12) is

   characterized in that

   the stop disc (12) is arranged at the drive shaft (9) in a pivotable manner.
2. The mounting tool (1) of claim 1, characterized in that the stop disc (12) is releasably connected to the drive shaft (9).
3. The mounting tool (1) of any of claims 1 and 2, characterized in that the stop disc (12) is arranged at the drive shaft (9) in a pivotable manner by means of a ball joint (13).
4. The mounting tool (1) of claim 3, characterized in that the ball joint (13) is connected to the drive shaft (9) by means of a releasable clamp connection (14).
5. The mounting tool (1) of any of claims 1 to 4, characterized in that the drive shaft (9) is made of metal.
6. The mounting tool (1) of claim 1, characterized in that the stop disc (12) is arranged at the drive shaft (9) to be rotatable.
7. The mounting tool (1) of claim 1, characterized in that the diameter of the stop disc (12) is larger than the diameter of the covering disc (2).
8. The mounting tool (1) of claim 7, characterized in that the stop disc (12) is round.
9. The mounting tool (1) of any of claims 1 to 8, characterized in that the stop disc (12) is made of plastics.
10. A method for flush-arranging a covering disc (2) in a recess (7) in an insulating material (8), wherein the method comprises the following steps:

    connecting a first end section of a drive shaft (9) of a mounting tool (1) to an expansion element (6);

    moving forward the expansion element (6) by means of a drive tool being arranged at the second end section of the drive shaft (9), wherein the second end section is located opposite the first end section, and

    simultaneously moving forward a covering disc (2) in the recess (7) in the insulating material (8) by means of a stop disc (12) being arranged at the drive shaft (9); and

    pivoting the stop disc (12) for arranging the covering disc (2) in the recess (7) being flush with a surface of the insulating material (8).

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