DE7333524U - Fastening element, in particular for fastening cladding elements at a distance on a wall made of structures with cavities - Google Patents

Description

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Artur Fischer

7241 Tumlingen. September 12, 1973

Ju / RB

Fastening element, in particular for fastening cladding elements at a distance from one another Wall made of structures with cavities

The innovation relates to a fastening element, in particular for fastening cladding elements or components at a distance on a wall of structures with cavities, for example sand-lime brick, consisting of an expandable expansion sleeve, one having an expansion cone and serving to expand the expansion sleeve and an extended part for Attachment of the cladding elements set up shaft part.

The known spacer fasteners need to be recorded the shear and bending forces resulting from the weight of the cladding elements are relatively low Borehole that should not be interrupted by any cavities in the structure. Any interruption of the borehole by a cavity reduces the expansion zone and thus the support surface of the fastening element in the borehole that has to be applied to the counter-torque. They are therefore not very suitable for anchoring in walls made of structures with cavities.

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7333524 03/27/75

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The innovation is therefore based on the task of a fastening element to create that also for the spacing of cladding elements or components in walls made of Bcukkörperern with cavities is suitable.

According to the innovation, this is the case with the fastening element mentioned at the beginning achieved in that it is provided with a stop means which can be fixed in the region of the shaft part and which limits the depth of insertion of the fastening element.

To anchor the fastener according to the invention, a hole is first made, the diameter of which Corresponds to the outer diameter of the expansion sleeve. The fastening element is now pushed into the borehole until until the sling rests against the outer surface of the wall. The stop means is fixed on the shaft part so that in Depending on the specific type of structure with its cavities, the best possible use of the expansion area is reached. For example, the stop means can be arranged on the fastening element so that with certainty the spreading of the expansion part of the fastening element takes place in the area of a web. Through the According to the innovation, the source of danger is thus eliminated that most of the spreading in the cavity takes place, and only a small part provides the actual anchoring.

7333524 27.0175

M 1266

Due to the large area of the lifting gear on the wall surface there is also an additional support of the fastening element, through which almost all of them are on the fastening element acting shear and bending forces are compensated. By relieving the spreading area of A shorter expansion zone that only absorbs the far lower pull-out forces is sufficient for bending forces. The invention enables It is therefore also possible to fix spacing in walls made of structures with cavities, in which only the webs for the Anchoring the fastener can be used.

In a further embodiment of the innovation, the expansion part at its end opposite the inlet end by an outer diameter of the smallest diameter of the The expansion cone of the expansion part corresponding thread section preferably be extended in one piece, onto which an internal thread having and the expansion sleeve on the expansion cone pushing shaft part can be screwed, wherein the stop means designed as a disk and can be clamped between the shaft part and expansion sleeve.

In this embodiment, the distance between the stop means and the end face of the fastening element is determined by a corresponding Length of the expansion sleeve and the threaded section of the expansion part can be determined. The assembly is advantageously carried out the appropriate fastening elements for the respective building structure type at the manufacturer's works. By pinching the Disc-shaped stop means between the shaft part and the expansion sleeve results in a firm, the bending forces in the fastening element conductive connection.

7333524 03/27/75

The fastening element is anchored by screwing the shaft part onto the threaded section of the Expansion part. The expansion part is pulled into the expansion sleeve, which is located on the disk-shaped stop means supports. As a result, the stop means is braced between the end face of the shaft part and the expansion sleeve.

In a further addition to the innovation, this can be done on the shaft part fixable stop means can be connected in one piece to a sleeve that can be slipped over the shaft part. Through this additional support of the shaft part by means of the sleeve integrally connected to the stop means results a further improvement in the leverage ratio and an even more favorable introduction of the bending forces into the fastening element.

Finally, in a further addition to the innovation, the shaft part can have annular grooves arranged at a distance from one another be provided, in which the stop means connected to a sleeve can be locked.

This configuration is intended to adjust the distance of the stop means from the end face of the in a simple manner Fastening elements allow depending on the type of structure or the desired installation depth.

7333524 27.0175

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M! 266

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In a further embodiment of the innovation, the stop means can also have inwardly projecting and into the annular grooves locking projections be provided. This configuration makes it easier to move the stop means on the shaft part.

In the drawing are exemplary embodiments of the innovation shown.

Figure 1 shows a spacer in a structure with cavities, in which the stop means between the shaft part and expansion sleeve is clamped,

Figure 2 shows a fastening element, the shaft part with annular grooves is provided for engaging the lifting gear.

FIG. 3 shows a perspective view of the stop means connected in one piece with a sleeve.

The illustrated fastening element for spacing fastening in structures 1 with cavities la consists of an expansion sleeve 2 and an expansion part 3 which expands the expansion sleeve 2 and which is lengthened at its end opposite the insertion end by a thread section H corresponding in outer diameter to the smallest diameter of the expansion cone. A shaft part 5 with an internal thread 6, the external diameter of which corresponds to the diameter of the unexpanded expansion sleeve 2, can be screwed onto this threaded section 4. The shaft part 5 has a hexagon socket 7 for attaching a turning tool.

7333524 03/27/75

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The shaft part 5 also has an external thread 8 on which one sleeve 10 provided with internal thread 9 can be screwed on. The end of the sleeve 10 further away from the wall is a screw head 11 formed with a slot for attaching a turning tool. The sleeve 10 has an external thread over part of its length 12, onto which a lock nut 13 can be screwed. By tightening the lock nut 13, the cladding element between the screw head 11 of the sleeve 10 and this lock nut 13 braced. The distance of the cladding element 14 to the wall surface is set by the sleeve 10, which due to its internal thread 9 is adjustable in the axial direction of the fastening element.

Between the shaft part 5 and the expansion sleeve 2 is the disk-shaped Stop means 15 braced, which rests on the wall surface and thereby both as an insertion limit for the fastening element as well as to absorb the shear and bending forces that are set by the cladding element 14. The stop means 15 ensures that the spreading takes place in an expansion sleeve length in the web Ib matched to the web thickness of the structure 1 with cavities la.

The fastening element shown in FIG. 2 consists of the expansion sleeve 22 and the one engaging in the expansion body 23 Expansion screw 24. The part 24a of the expansion screw 24 engaging in the expansion sleeve 22 and in the expansion body 23 is offset, the outer diameter of the shaft part 24b remaining outside the expansion sleeve 22 being equal to the outer diameter the unexpanded expansion sleeve 22 is. This shaft part 24b of the projecting out of the borehole with most of its length

7333524 27.0175

M 1266

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Expansion screw 24 is lengthened and set up to fasten cladding elements at a distance (not shown).

To anchor the fastener in the masonry, by turning the expansion screw 24 of the expansion body 23 is in the Expanding sleeve 22 retracted. The expansion sleeve 22 is supported on the one resulting from the deposition of the expansion screw 24 Shoulder off.

The elongated shaft part 24b of the expansion screw 24 is provided with annular grooves 25 arranged at a distance from one another, into which the stop means 27 connected to a sleeve 26 engages. To this end, the stop means 27 has inne.i protruding Projections 28 on. The connection of the stop means 27 with a sleeve 26 results in additional support of the Shank part 24b, which serves to better initiate the bending forces in the fastening element.

Figure 3 shows a perspective view of the with a sleeve connected stop means 27, with a larger number of inwardly protruding projections 28 the sliding and locking allow the stop means 27 in the annular grooves of the shaft part of the fastening element.

j 7333524 27.0175

Claims (3)

Artur Fischer Tumlingen t September 12, 1973 Ju / RB M 1266 claims for protection 1. Fastening element in particular for the spacing fastening of cladding elements or components on a wall made of structures with cavities, for example sand-lime bricks, consisting of an expandable expanding sleeve, an expanding part having an expanding cone and serving to expand the expanding sleeve and an elongated shaft part set up for fastening the cladding elements, characterized in that that the fastening element is provided with a stop means (15, 27) which can be fixed in place in the region of the shaft part (5, 24b) and which delimits the insertion of the fastening element / ¹ 2. Fastening element according to claim 1, characterized in that the expanding part (3) at its opposite to the insertion end End through an outer diameter corresponding to the smallest diameter of the expansion cone of the expansion part (3) The thread section (4) is preferably extended in one piece, onto which the shaft part (5), which has an internal thread (6) and which pushes the expansion sleeve (2) onto the expansion cone, can be screwed is, wherein the stop means (15) is designed as a disk and can be clamped between the shaft part (5) and expansion sleeve (2) isty ' - 2 -r ■ 7333524 03/27/75 M 1266 • -2- 3. Fastening element according to claim 1, characterized in that there? stop means which can be fixed on the shaft part (24b) (27) is integrally connected to a sleeve (26) that can be slipped over the shaft part (24b). / Fastening element according to Claims 1 and 3, characterized in that the shaft part (24b) is spaced apart annular grooves (25) arranged in relation to one another are provided, in which the stop means (27) connected to a sleeve (26) is lockable. Fastening element according to Claim 4, characterized in that the stop means (27) have inwardly projecting and in the annular grooves (25) locking projections (28) is provided. 7333524 03/27/75