US 9,688,019 B2Granted

Method of fixation for a mechanical dowel

AssigneeWoodwelding AG

InventorsMario Lehmann, Laurent Torriani, Jorg Mayer, Marcel Aeschlimann

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Abstract

An anchoring method of anchoring an anchoring element in a construction object is provided, where a surface of which object has at least one of pores in a surface, structures in a surface (such as an arrangement of ridges with undercut), a inhomogeneous characteristic with makes the penetration of a surface by a liquid under pressure possible, thereby creating pores filed by the liquid underneath the surface, and of a cavity. The method includes the steps of: providing a first element and a second element, the first element comprising a thermoplastic material; positioning the first element in a vicinity of said surface and/or of said cavity, respectively, and positioning the second element in contact with the first element; and causing a third element to vibrate while loading the first element with a force, thereby applying mechanical vibrations to the first element, and simultaneously loading the first element with a counter-force by the second element.

Claims25

Dependent claims

A device for producing an anchor in a construction material object, the device comprising:

an anchoring element comprising thermoplastic material and comprising a proximally facing coupling face and a distally facing coupling face,
a counter element comprising a counter element coupling face,
and a vibration element, the vibration element extending between a proximal fore end and a distal rear end and having a vibration element shaft portion and a vibration element foot portion, the vibration element foot portion secured to a distal section of the shaft portion and forming a proximally facing outcoupling face, a proximal section of the shaft portion being equipped for being coupled to a generator of mechanical vibrations, the shaft portion being capable of transferring the mechanical vibrations in a distal direction to the foot portion,
wherein the anchoring element, the counter element and the vibration element are arranged or configured to be arranged so that the outcoupling face of the vibration element is in contact with the distally facing coupling face of the anchoring element and the counter element coupling face is in contact with the proximally facing coupling face,
whereby the anchoring element is capable of being clamped between the vibration element and the counter element by applying a pulling force to the vibration element shaft portion and simultaneously applying a pushing force of equal magnitude and opposite direction to the counter element,
wherein a lateral outermost surface portion of the anchoring element is formed by the thermoplastic material,
whereby portions of the thermoplastic material are liquefiable by the joint application of the pulling force, the pushing force and mechanical vibrations coupled into the vibration element and pressable into structures of the construction material object adjacent the lateral outermost surface portion to yield, after re-solidification, an anchoring in the construction material object.

4 more elements

A device for producing an anchor in a construction material object, the device comprising:

an anchoring element comprising thermoplastic material and comprising a proximally facing coupling face and a distally facing coupling face,
a counter element, the counter element extending between a proximal fore end and a distal rear end and having a counter element shaft portion and a counter element foot portion, the counter element foot portion secured to a distal section of the shaft portion and forming a proximally facing counter element coupling face,
and a vibration element, a proximal section of the vibration element being equipped for being coupled to a generator of mechanical vibrations, the vibration element being capable of transferring the mechanical vibrations in a distal direction to a distally facing outcoupling face,
wherein the anchoring element, the counter element and the vibration element are arranged or configured to be arranged so that there is a first physical interface between the outcoupling face and the proximally facing coupling face of the anchoring element and a second physical interface between the counter element coupling face and the distally facing coupling face, wherein an area of the first interface is different from an area of the second interface,
wherein the anchoring element is capable of being clamped between the vibration element and the counter element by applying a pushing force to the vibration element and simultaneously applying a counter force of equal magnitude and opposite direction to the counter element shaft portion,
wherein a lateral outermost surface portion of the anchoring element is formed by the thermoplastic material,
whereby portions of the thermoplastic material are liquefiable by the joint application of the pushing force, the counter force and mechanical vibrations coupled into the vibration element and pressable into structures of the construction material object adjacent the lateral outermost surface to yield, after re-solidification, an anchoring in the construction material object.

4 more elements

A device for producing an anchor in a construction material object, the device comprising:

a sleeve element, the sleeve element comprising a lateral wall portion with a proximally facing mouth and a distal end portion, whereby the sleeve element forms a receptacle, the wall portion extending distally from the mouth, the sleeve element comprising a plurality of openings,
an anchoring element comprising thermoplastic material and comprising a proximally facing coupling face,
and a vibration element, a proximal section of the vibration element being equipped for being coupled to a generator of mechanical vibrations, the vibration element being capable of transferring the mechanical vibrations in a distal direction to a distally facing outcoupling face,
wherein the anchoring element, the sleeve element and the vibration element are arranged or configured to be arranged so that anchoring element is at least partially inserted into the receptacle formed by the sleeve element through the mouth, and the outcoupling face is in contact with the proximally facing coupling face of the anchoring element,
whereby the anchoring element is compressible between the vibration element and the sleeve element by applying a pushing force to the vibration element and simultaneously applying a counter force of equal magnitude and opposite direction to the sleeve element,
whereby portions of the thermoplastic material are liquefiable by the joint application of the pushing force, the counter force and mechanical vibrations coupled into the vibration element and pressable through the openings into structures of the construction material object adjacent the sleeve element to yield, after re-solidification, an anchoring in the construction material object,
wherein the sleeve element further comprising a flange extending outwardly from the receptacle, the flange being configured to rest on an outer surface of the construction material object so as to cause the counter force as a normal force.

4 more elements

A device for producing an anchor in a construction material object, the device comprising:

an anchoring element comprising thermoplastic material and comprising a proximally facing coupling face and a distally facing coupling face,
a counter element, the counter element extending between a proximal fore end and a distal rear end and having a counter element shaft portion and a counter element foot portion, the counter element foot portion secured to a distal section of the shaft portion and forming a proximally facing counter element coupling face,
and a vibration element, a proximal section of the vibration element being equipped for being coupled to a generator of mechanical vibrations, the vibration element being capable of transferring the mechanical vibrations in a distal direction to a distally facing outcoupling face,
wherein the vibration element extends around the counter element shaft portion, with a gap between an inner surface of the vibration element and an outer surface of the shaft portion,
wherein the anchoring element, the counter element and the vibration element are arranged or configured to be arranged so that the outcoupling face is in contact with the proximally facing coupling face of the anchoring element and the counter element coupling face is in contact with the distally facing coupling face,
whereby the anchoring element is capable to be clamped between the vibration element and the counter element by applying a pushing force to the vibration element and simultaneously applying a counter force of equal magnitude and opposite direction to the counter element shaft portion,
wherein a lateral outermost surface portion of the anchoring element is formed by the thermoplastic material,
whereby portions of the thermoplastic material are liquefiable by the joint application of the pushing force, the counter force and mechanical vibrations coupled into the vibration element and pressable into structures of the construction material object adjacent the lateral outermost surface to yield, after re-solidification, an anchoring in the construction material object.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/945,991Filed 19 Jul 2013 · division
Priority: 25 Oct 2007
Published: US 2013/0302086 A114 Nov 2013
Granted: 27 Jun 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification56 codes

B29C 66/83
General aspects of machine operations or constructions and parts thereof: characterised by the movement of the joining or pressing tools
B29C 65/561
Using mechanical means or mechanical connections, e.g. form-fits: using screw-threads being integral at least to one of the parts to be joined
B29C 65/562
Using mechanical means or mechanical connections, e.g. form-fits: using extra joining elements, i.e. which are not integral with the parts to be…
B29C 65/564
Using extra joining elements, i.e. which are not integral with the parts to be joined: hidden in the joint, e.g. dowels or Z-pins

Family

Application60/982,449Us provisional application · filed 25 Oct 2007
PCT/CH2008/000441Parent of this division · filed 22 Oct 2008
US 2013/0302086 A1Pre-grant publication · published 14 Nov 2013
Application12/739,563Parent of this division
US 8,518,314 B2Parent of this division
US 2011/0062617 A1Published application
US 9,688,019 B2This patent

From the US filing history. Foreign family members aren’t listed.