Fastening arrangement with an axially affixed compound-squeezing disk

Patent metadata

Field	Value
Publication number	US-10458458-B2
Application number	US-201515129761-A
Country	US
Kind code	B2
Filing date	Mar 31, 2015
Priority date	Apr 1, 2014
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A fastening arrangement with a screw having a shank with a front end that is to be inserted into a hole drilled into a substrate, and at least one thread, whereby the thread is arranged on the shank, and with a squeezing unit having a compound reservoir containing a compound for filling a gap that exists between the shank and the wall of the drilled hole, with a squeezing disk towards which the front end of the shank can be moved in order to squeeze the compound out of the reservoir, and having a holding element for fastening the squeezing disk in the drilled hole, whereby, arranged on the holding element, on the one hand, there is the squeezing disk and, on the other hand, a stop element that comes to rest against the opening of the drilled hole.

First claim

What is claimed is:

1. A fastening arrangement comprising:
a screw having a shank with a front end to be inserted into a hole drilled into a substrate, and having at least one thread arranged on the shank; and
a squeezing unit having a compound reservoir containing a compound for filling a gap existing between the shank and the wall of the drilled hole, a squeezing disk, the front end of the shank movable toward the squeezing disk in order to squeeze the compound out of the reservoir, and a holding element for fastening the squeezing disk in the drilled hole, the squeezing disk being arranged on one side of the holding element and a stop element adapted to come to rest against the opening of the drilled hole being arranged on another side of the holding element wherein at least certain sections of the holding element are configured with a helical shape.

2. The fastening arrangement as recited in claim 1 wherein the shank has a groove to accommodate at least certain sections of the holding element.

3. The fastening arrangement as recited in claim 1 wherein the stop element is a circular washer having a through-hole, the shank passing through the through-hole.

4. The fastening arrangement as recited in claim 1 wherein the compound reservoir is arranged on the squeezing disk.

5. The fastening arrangement as recited in claim 1 wherein the squeezing disk has a sealing collar to accommodate the front end of the shank.

6. A method for the placement of the screw of the fastening arrangement as recited in claim 1 , the method comprising:
placing the squeezing disk and the compound reservoir of the squeezing unit of the fastening arrangement as recited in claim 1 into the drilled hole; and
screwing the screw of the fastening arrangement as recited in claim 1 into the drilled hole, the holding element axially securing the squeezing disk in the drilled hole and the squeezing disk squeezing compound out of the compound reservoir.

7. The method as recited in claim 6 wherein the squeezing disk and the compound reservoir of the squeezing unit are first inserted into the drilled hole to such a depth that the stop element comes to rest against the opening of the drilled hole, and in that the screw is subsequently screwed into the drilled hole.

8. The method as recited in claim 6 wherein the squeezing unit is arranged on the screw, and in that subsequently, the squeezing disk and the compound reservoir of the squeezing unit are inserted into the drilled hole, the squeezing unit and the screw being joined together when the squeezing disk and the compound reservoir are being inserted into the drilled hole.

9. The method as recited in claim 6 wherein the screwing step is subsequent to the placing step.

10. A fastening arrangement comprising:
a screw having a shank with a front end to be inserted into a hole drilled into a substrate, and having at least one thread arranged on the shank; and
a squeezing unit having a compound reservoir containing a compound for filling a gap existing between the shank and the wall of the drilled hole, a squeezing disk, the front end of the shank movable toward the squeezing disk in order to squeeze the compound out of the reservoir, and a holding element for fastening the squeezing disk in the drilled hole, the squeezing disk being arranged on one side of the holding element and a stop element adapted to to rest against the opening of the drilled hole being arranged on another side of the holding element; wherein the shank has a groove to accommodate at least certain sections of the holding element.

11. The fastening arrangement as recited in claim 10 wherein the stop element is a circular washer having a through-hole, the shank passing through the through-hole.

12. The fastening arrangement as recited in claim 10 wherein the compound reservoir is arranged on the squeezing disk.

13. The fastening arrangement as recited in claim 10 wherein the squeezing disk has a sealing collar to accommodate the front end of the shank.

14. A fastening arrangement comprising:
a screw having a shank with a front end to be inserted into a hole drilled into a substrate, and having at least one thread arranged on the shank; and
a squeezing unit having a compound reservoir containing a compound for filling a gap existing between the shank and the wall of the drilled hole, a squeezing disk, the front end of the shank movable toward the squeezing disk in order to squeeze the compound out of the reservoir, and a holding element for fastening the squeezing disk in the drilled hole, the squeezing disk being arranged on one side of the holding element and a stop element adapted to rest against the opening of the drilled hole being arranged on another side of the holding element; wherein the squeezing disk has a sealing collar to accommodate the front end of the shank.

15. The fastening arrangement as recited in claim 14 wherein the stop element is a circular washer having a through-hole, the shank passing through the through-hole.

16. The fastening arrangement as recited in claim 14 wherein the compound reservoir is arranged on the squeezing disk.

Assignees

• Hilti Ag
• Hilti Aktienbesellschaft

Inventors

• Hakenholt Christoph
• Wildermuth Anke

Classifications

• F16B13/141 Primary

  Fixing plugs in holes by the use of settable material · CPC title

• F16B25/0026

  the material being a hard non-organic material, e.g. stone, concrete or drywall (F16B25/0031 takes precedence) · CPC title

• F16B39/225 Primary

  by means of a settable material · CPC title