DE102009011138A1 - Fastening unit i.e. drive screw, for fastening e.g. plate material at brickwork, has groove profile partially provided on outer surface of shaft element and enclosed by casing element that is made of flexible material - Google Patents

Abstract

The unit (1) has a shaft element (2) and a head element (3), where the unit is driven into a wall by application of power of impact on the head element using an impact tool i.e. hammer. A groove profile (4) is partially provided on an outer surface of the shaft element, and is enclosed by a casing element (5) that is made of a flexible material. The groove profile is arranged, in form of threads, transverse or coaxial to a shaft axis (6). The unit is formed of plastic material, and is provided with a metal core.

Description

The The invention relates to a fastener with coating element according to the preamble of claim 1.

State of the art

Fastening means, for example, an impact screw, for attaching loads to masonry or panel walls in pre-drilled recesses are in one Variety of different embodiments known.

This is how the document shows DE 25 18 204 A1 a plastic nail for securing loads, wherein a substantially cylindrically shaped base body has on its lateral surface barbs which protrude as ausgestalt projections of the mantle surface and wherein the plastic nail has at its end a designed like a push-button mushroom connector for attaching the load , The plastic nail shown here is driven by means of a corresponding impact tool in the corresponding recess of a masonry or a wall panels, wherein the barbs disposed on the surface surface barbs are pressed against the inner surface of the recess, whereby the plastic nail is secured against accidental slipping out of the recess.

In the publication DE 10 2006 032 156 A1 a dowel designed as a strand arrangement is shown, wherein the strand arrangement is formed of flexible, intersecting single strands and can be turned over as a net-shaped hose via a fastening means, for example a plastic nail. The dowel formed as a flexible strand arrangement forms a uniform contact pressure on the wall surface of a recess.

The The present invention has for its object to provide a fastening means, For example, an impact screw in conjunction with a coating element in such a way that the assembly is simplified and the Manufacturing costs of the fastener can be lowered.

to Solution to the problem is the invention by the features of the protection claim 1.

advantageous Extensions of the invention are in the dependent claims described.

Disclosure of the invention

The Invention is based on a fastening means, preferably an impact screw out, with the impact screw from a shaft and head element is formed and by applying an impact force on the head element by means of a striking tool, such as a hammer, in a wall is recoverable.

With the driven fastener are loads, for example a plate material or fasteners for gutters, on the surface of a wall panel or masonry arranged.

Of the Core of the invention is that the fastening means the outer surface of the shaft member partially has a corrugated profile, which with a coating element is wrapped in a flexible material.

The Fastener is used together with the on the mantle surface of the fastener arranged coating element in a corresponding recess of a wall panels or masonry driven and forms a positive connection between the fastener and the recess.

In A preferred embodiment of the invention provides that the corrugated profile transversely or coaxially to the shaft axis, helical, in the form of a thread, and / or toothed arranged.

The Arrangement of the corrugated profile on the mantle surface of the Fastener is according to the wall material and the holding force adapted to the load to be fastened.

In a further preferred embodiment of the invention it is envisaged that the flexible material during driving of the shaft element, for example in a recess of a wall, between the upper edge of the corrugated profile and the inner surface the recess wedged.

Of the Recess diameter in a wall panel or masonry is smaller with respect to the diameter of the fastener, thereby the flexible material of the coating element between Upper edge of the corrugated profile and inner surface of the recess wedged (squeezing the material).

About that In addition, in a further embodiment of the invention, that the flexible material after driving into a cavity a hollow block wall forms a bead with clamping action.

Is an inventive fastening driven medium into a cavity of a hollow block wall, this fastening means is loaded by a corresponding load from the outside against the driving direction, whereby the flexible coating element is pressed against the inner surface of a hollow block wall and forms a bead of material. This has the advantage that additional anchor elements are not required on the fastening means.

In A further embodiment of the invention provides that the coating separately or in the coating or dipping process is formed.

The coating element is formed of a plastic material, preferably of PA. The coating element is for example in a separate Manufacturing process or in a spray, coating or dipping method on the mantle surface of the fastener arranged. In both manufacturing methods is sufficient flexibility ensures the material for the coating element.

In a further preferred embodiment of the invention it is provided that the head element ( 3 ) Has an internal and / or external connection thread and triangular, square, hexagonal or cylindrical is formed.

The Triangular, square, hexagonal or cylindrical shape with an interior and / or external connection thread guaranteed on the one hand a flexible attachment to the fastener. For example Be loads or other connecting parts to the fastener fastened by means of screw elements.

Prefers is provided in a further embodiment of the invention that in the region of the head element a rosette is arranged. The order a rosette has the advantage that, for example, wall panels with a relatively low surface hardness (Rigips) are sufficient to attach without affecting the surface is damaged.

In A further embodiment of the invention provides that the fastening means is formed of a plastic material.

The Formation of a fastening means made of a plastic material has the advantage that, for example, cold bridges be avoided. In addition, go from the fastener no Corrosion damage.

additionally ensures a fastener formed of plastic material an improved, form-fitting adaptation in the corresponding Recess.

In a further preferred embodiment of the invention is provided that the fastening means of a plastic material formed with a metal core. This has the advantage of being a fastener with a higher strength with simultaneous utilization the corrosion-protective properties can be produced.

Further Features of the invention will become apparent from the following description of the figures and the drawings.

there demonstrate:

1 a fastener with a transverse to the longitudinal axis on the mantle surface arranged Riffelprofil with coating element;

2 a fastener with a coaxially to the longitudinal axis extending, arranged on the outer surface Riffelprofil with coating element;

3 a fastener with a circumferentially arranged in the form of a thread on the shell surface Riffelprofil with coating.

4 a fastener with a serrated Riffelprofil on the mantle surface with coating;

5 a rosette for attachment to the head element;

6 an extension to extend the shaft element.

This in 1 shown fasteners 1 is predominantly cylindrical and has a tip at a first end 10 on, which the force required to drive the fastener 1 diminished in a wall or in a panel element.

At the opposite end of the fastener 2 is a head element 3 arranged, which on its mantle surface an external thread 8th having.

The fastener 1 points, starting from the top 10 , on its mantle surface partially transverse to the shaft axis 6 running corrugated profile 4 on which together with the adjacent top 10 from a coating element 5 wrapped in a form-fitting manner.

The coating element 5 is made of a flexible material, and is when driving the fastener 1 in a recess of a Wall between the top edge of the corrugated profile 4 and the inner surface of the recess wedged.

In 2 is a fastener 1 to 1 showing that on the mantle surface of the fastener 1 arranged corrugated profile 4a coaxial with the shaft axis 6 runs and of a corresponding coating element 5 together with the top 10 is wrapped.

That with the shaft axis 6 Coaxial corrugated profile 4a reduces the effort when driving a fastener according to the invention 1 , wherein the coating element 5 in the driven state of the fastener 1 also between the upper edge of the corrugated profile 4b and the inner surface of the recess wedged. In addition, a twisting of the driven fastener 1 in the driven state due to the coaxially arranged corrugated profile 4a difficult.

At the top 10 opposite end of the fastener 1 is a head element 3 formed, which on the mantle surface an external thread 8th having.

In 3 is a fastener 1 shown on the mantle surface of the shaft member 2 arranged corrugated profile 4b helical, similar to a thread, is formed. The fastener 1 can be driven into the recess of a wall surface in the form of a screw element. The helical corrugated profile 4b is along with the adjoining top 10 from a coating element 5 envelops. Again, the flexibly formed coating element wedged 5 in the driven state of the fastener 1 between the upper edge of the corrugated profile 4b and the inner surface of the recess.

In 4 is another embodiment of a fastener 1 shown. On the mantle surface is a serrated corrugated profile 4c formed, which with a coating element 5 is wrapped. The shape, for example, a "sawtooth" and the direction of the profile is variable, for example in the direction of the tip 10 or in the direction of the rosette 7 oriented. The coating element wedges between the upper edge of the corrugated profile 4c and the inner surface of a wall recess. The tooth-shaped corrugated profile 4c is flexible, whereby the tooth-shaped profile in the driving direction of the fastener 1 is pressed onto the mantle surface. The tooth-shaped profile is partially oriented in the recess again, thereby improving the clamping action of the fastener 1 in a wall recess.

That in the 1 to 4 illustrated head element 3 is also usable as a shock body. Here is the shape of the head element 3 variable. For example, the head element can be formed as a triangular, square, or hexagonal impactor, which is designed to accommodate blows for driving the fastener 1 can be used.

In 5 is a rosette 7 shown having a conical body shape in a stepped manner with different diameters. The rosette has a central internal thread 11 on, which with the external thread 8th of the head element 3 can be engaged. The rosette 8th prevents penetration of a fastener due to its increasing diameter 1 in soft materials, such as Rigips panels. In addition, the rosette 7 be formed such that the corrugated profile 4 . 4a . 4c partly for protection from the conical shaft part of the rosette 7 is encompassed.

In addition, with the internal thread 11 the rosette 7 Another fastener, such as a screw or a threaded rod are brought into engagement.

In 6 is an extension 12 shown, which is formed from a cylindrical shaft member and at the ends of each an internal thread 13 and an external thread 14 is arranged.

The extension is between the fastener 1 and the rosette 7 arrangeable and thus extends the total length of the fastener 1 for arranging, for example, panel elements on a house wall covered with an insulating layer.

In addition, the header shown in the embodiments described herein is 3 can be formed with an internal thread to another fastener, such as a threaded rod releasably connected to the fastener 1 connect to.

Of the Subject of the present invention does not arise only from the subject of the individual claims, but also from the combination of individual protection claims among themselves.

All in the documents, including the abstract Information and features, in particular the spatial shown in the drawings Training, are claimed as invention significantly, as far as individually or in combination with the state of the art Technology is new.

1

fastener

2

shaft element

3

header

4

Riffel profile crosswise

4a

Riffel profile along

4b

Riffel profile circulating

4c

Riffel profile serrated

5

coating element

6

shaft axis

7

Rosette, conical

8th

External thread, header

9

key area

10

top

11

Inner thread, rosette

12

renewal (Adapter)

13

Inner thread, renewal

14

External thread, renewal

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 2518204 A1 [0003]
• DE 102006032156 A1 [0004]

Claims (9)

Fixing means ( 1 ), preferably an impact screw, the impact screw from a shank ( 2 ) and a header ( 3 ) is formed and by applying an impact force on the head element ( 3 ) by means of a striking tool, such as a hammer, is driven into a wall, characterized in that the fastening means ( 1 ) on the outer surface of the shaft element ( 2 ) partially a corrugated profile ( 4 . 4a . 4b . 4c ), which is coated with a coating element ( 5 ) is wrapped in a flexible material. Fixing means ( 1 ) according to claim 1, characterized in that the corrugated profile ( 4 . 4a . 4b . 4c ) transversely or coaxially to the shaft axis ( 6 ), helically, in the form of a thread, and / or serrated. Fixing means ( 1 ) according to one of the preceding claims, characterized in that the flexible material of the coating element ( 5 ) when driving the shaft element ( 2 ), for example in a recess of a wall, between the upper edge of the corrugated profile ( 4 . 4a . 4b . 4c ) and inner surface of the recess wedged. Fixing means ( 1 ) according to one of the preceding claims, characterized in that the flexible material of the coating element ( 5 ) forms a bead with clamping action after driving into a cavity of a hollow block wall. Fixing means ( 1 ) according to one of the preceding claims, characterized in that the coating element ( 5 ) is formed separately or in the coating or dipping process. Fixing means ( 1 ) according to one of the preceding claims, characterized in that the head element ( 3 ) Has an internal and / or external connection thread and triangular, square, hexagonal or cylindrical is formed. Fixing means ( 1 ) according to one of the preceding claims, characterized in that in the region of the head element ( 3 ) a rosette ( 7 ) is arranged. Fixing means ( 1 ) according to one of the preceding claims, characterized in that the fastening means ( 1 ) is formed of a plastic material. Fixing means ( 1 ) according to one of the preceding claims, characterized in that the fastening means ( 1 ) is formed of a plastic material with a metal core.