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US 10,780,644 B2Granted
Method of anchoring a first object in a second object
AssigneesWoodwelding AG, IKEA Supply AG
InventorsJörg Mayer, Mario Lehmann, Håkan Käll, Muthumariappan Sankaran
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Abstract
A method for joining two objects by anchoring an insert portion provided on a first object in an opening provided on a second object. The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces of the insert portion and the wall of the opening. During the step of inserting the insert portion in the opening and/or during anchorage a clamping force is applied to opposing surfaces of the second object to prevent the second object from cracking or bulging.
Claims25
A method of anchoring a first object in a second object, the method comprising the steps of:
- providing the first object comprising a first material and providing the second object comprising a second material, wherein the first material is solid and comprises thermoplastic properties and wherein the second material is solid, has pores and is thereby penetrable by the first material when in a liquefied state, the second object having an end face;
- wherein the second object further comprises an opening having a mouth in the end face, the opening having an opening axis and a depth and the first object further comprising an insert portion having a length,
- wherein the opening and the insert portion are adapted to each other for the insert portion to be positioned in the opening, and wherein said first and second materials constitute at least part of opposite surface areas of the insert portion and the opening capable of being pressed against each other,
- applying a clamping force to the second object while the insert portion is at least partially inserted in the opening, the clamping force acting between clamping elements acting on opposing surfaces arranged so that the opening is between the opposing surfaces when the clamping force is applied, the clamping force acting in a direction non-parallel to the opening axis,
- anchoring the insert portion of the first object in the opening by transferring energy suitable for at least partial liquefaction of the first material to a vicinity of said opposite surface areas in an amount and for a time sufficient, for liquefaction of the first material and interpenetration of the first and second materials in the vicinity of said opposite surface areas by the first material filling at least some of the pores of the second material, wherein in the step of anchoring, the second material remains solid and is interpenetrated by the first material;
- stopping the transfer of the energy for a time sufficient for the first material liquefied during the step of anchoring to re-solidify, whereby after re-solidification a positive-fit connection between the first and the second materials results by the first material interpenetrating the second material.
3 more elements
A method of anchoring a first object in a second object, the method comprising the steps of:
- providing the first object comprising a first material and providing the second object,
- wherein the first material is solid and comprises thermoplastic properties and wherein the second object has a board-shaped section, the board-shaped section having two broad surfaces and a narrow-side surface between the broad surfaces, the narrow-side surface constituting an end face, wherein the second object further comprises an opening in the end face, the opening having an opening axis and a circumferential opening wall extending around the opening axis, the opening wall extending to a mouth in the end face being constituted by the narrow-side surface,
- wherein the second object is solid and porous at least in a region around the opening wall, whereby a second material of the second object is penetrable by flowable material,
- wherein the opening has a depth and wherein the first object further comprises an insert portion having a length,
- wherein the opening and the insert portion are adapted to each other for the insert portion to be positioned in the opening, and wherein said first and said second materials constitute at least part of opposite surface areas of the insert portion and the opening capable of being pressed against each other, respectively, wherein dimensions of the opening and the insert portion are adapted to each other for;
- at least partially inserting the insert portion into the opening;
- applying a clamping force to the second object while the insert portion is at least partially inserted in the opening, the clamping force acting between clamping elements acting on opposing surfaces arranged so that the opening is between the opposing surfaces when the clamping force is applied, the clamping force acting in a direction non-parallel to the opening axis;
- anchoring the insert portion of the first object in the opening by transferring energy suitable for at least partial liquefaction of the first material to a vicinity of said opposite surface areas in an amount and for a time sufficient, for liquefaction of the first material and penetration of the liquefied first material into pores of the second material in the vicinity of said opposite surface areas, wherein in the step of anchoring, the second material remains solid and is interpenetrated by the first material;
- and
- stopping the transfer of energy for a time sufficient for the first material liquefied during the step of anchoring to re-solidify;
- whereby after re-solidification a positive-fit connection between the first and the second materials results by the first material interpenetrating the second material.
8 more elements
Dependencies are inferred from the claim text.