Granted Patent B2

US 12,728,931 · App. 17/991,080 · Granted Sep 8, 2026

Inventors: Noah Munzinger (Zürich, CH); Denis Souvay (Illkirch-Graffenstaden, FR); Urs Rheinegger (Regensdorf, CH)

Assignee: SIKA TECHNOLOGY AG

B62D27/026B62D25/00

Abstract

Claims (32)

1 . A system of a reinforced structural element, the system comprising:

a structural element having a cavity;

a reinforcing element which is disposed in the cavity of the structural element and which has at least one channel on an outside of the reinforcing element, the outside of the reinforcing element forming a shoulder alongside the channel; and

an adhesive disposed at least partly in the channel and at least partly on the shoulder, wherein

the reinforcing element is bonded to the structural element by the adhesive,

a joining region directly adjoining the shoulder on the outside of the reinforcing element is free of adhesive when the reinforcing element and the structural element are in a bonded state,

a first space between the shoulder and the structural element and a second space between the joining region and the structural element are open to one another,

the reinforcing element forms an open system with the structural element during adhesive bonding,

the first space and the second space are fluid-permeable and unsealed, during and after the adhesive bonding, in relation to a bordering cavity of the structural element, and

the shoulder has a width of less than 30 mm measured in the same direction as a width of the channel.

2 . The system as claimed in claim 1 , wherein a spacing between the shoulder and the structural element is between 0.5 and 5 mm.

3 . The system as claimed in claim 1 , wherein

the reinforcing element has at least one channel on an outside, and

the outside of the reinforcing element forms the shoulder next to the channel.

4 . A method for reinforcing a structural element, the method comprising:

providing a structural element having a cavity;

disposing a reinforcing element in the cavity of the structural element, the reinforcing element having at least one channel on an outside of the reinforcing element, the outside of the reinforcing element forming a shoulder alongside the channel;

introducing an adhesive into the channel;

spreading the adhesive at least partly in the channel and at least partly on the shoulder;

bonding the reinforcing element to the structural element with the adhesive; and

stopping the spreading of the adhesive on the shoulder prior to a bonded state of the reinforcing element and the structural element such that a first space between the shoulder and structural element and a second space between a joining region and structural element are open to one another, the joining region directly adjoining the shoulder on the outside of the reinforcing element, wherein

the reinforcing element forms an open system with the structural element during adhesive bonding,

the first space and the second space are fluid-permeable and unsealed, during and after the adhesive bonding, in relation to a bordering cavity of the structural element, and

the shoulder has a width of less than 30 mm measured in the same direction as a width of the channel.

5 . The method as claimed in claim 4 , wherein at least one of the following conditions is fulfilled:

(i) the spreading of the adhesive on the shoulder is stopped by solidification of the adhesive on the shoulder, and

(ii) the method comprises curing the adhesive by application of a temperature of at least 120° C.

6 . The method as claimed in claim 4 , wherein at least one of the following conditions is fulfilled:

(i) the adhesive, on introduction into the channel, is conveyed by a pump from an adhesive tank,

(ii) the adhesive on introduction into the channel is conveyed through a filling opening in the structural element, and

(iii) the adhesive on introduction into the channel is conveyed through a filling opening and a line in the reinforcing element.

7 . The method as claimed in claim 4 , wherein the spreading of the adhesive on the shoulder is stopped by solidification of the adhesive on the shoulder.

Priority Claims (1)

Continuity (2)

References Cited (82)