Source: https://patents.google.com/patent/US8572922B2/en
Timestamp: 2019-04-22 04:39:53+00:00

Document:
A tongue (1) is shown with edge sections (3) that are used to glue the tongue into a groove (2) of panel.
The present application claims the benefit of U.S. Provisional Application No. 61/504,576, filed on 5 Jul. 2011, Swedish Application No. 1150635-9, filed on 5 Jul. 2011, Swedish Application No. 1150775-3, filed on 26 Aug. 2011, and Swedish Application No. 1150777-9, filed on 29 Aug. 2011. The entire contents of each of U.S. Provisional Application No. 61/504,576, Swedish Application No. 1150635-9, Swedish Application No. 1150775-3, and Swedish Application No. 1150777-9 are hereby incorporated herein by reference in their entirety.
FIG. 1 illustrate a known locking system comprising a displaceable tongue.
FIG. 2 shows a first embodiment of the tongue according to the invention.
FIGS. 3 a and 3 b shows an edge section of the first embodiment of the tongue.
FIG. 4 shows a second embodiment of the tongue.
FIG. 5 shows first edge section of the second embodiment.
FIG. 6 shows second edge section of the second embodiment.
FIG. 7 shows a third embodiment of the tongue.
FIG. 8 shows first edge section of the third embodiment.
wherein at least one of the protrusions is provided with a flexible link that connects the edge section to a body of the tongue.
2. The tongue as claimed in claim 1, wherein said edge section is provided with a breaking part, configured to be broken when the tongue is inserted into the groove.
3. The tongue as claimed in claim 1, wherein said edge section is provided with an outer protruding stop part, which overlaps an inner stop part, the inner stop part protruding from the edge of the body of the tongue, wherein said inner and outer stop parts cooperate to limit the displacement of the tongue in the groove.
4. The tongue as claimed in claim 1, wherein said edge section is provided with a protruding friction connection, configured to hold the tongue in the correct position until the glue is cured.
5. The tongue as claimed in claim 1, wherein a protrusion is provided with a protruding friction connection, configured to hold the tongue in the correct position until the glue is cured.
6. The tongue as claimed in claim 1, wherein the tongue is provided with an edge section on each edge of the tongue.
7. The tongue as claimed in claim 1, wherein the protrusions are bow shaped.
8. The tongue as claimed in claim 1, wherein there is an angle between the protrusions and the longitudinal direction of the tongue.
9. A building panel provided with a tongue, according to claim 1, wherein said tongue is displaceable in a groove at an edge of the building panel.
wherein at least one of the protrusions is provided with a flexible link that extends from a distal-most tip of the at least one of the protrusions and connects the edge section to a body of the tongue.
11. The tongue as claimed in claim 10, wherein said edge section is provided with a breaking part, configured to be broken when the tongue is inserted into the groove.
12. The tongue as claimed in claim 10, wherein said edge section is provided with an outer protruding stop part, which overlaps an inner stop part, the inner stop part protruding from the edge of the body of the tongue, wherein said inner and outer stop parts cooperate to limit the displacement of the tongue in the groove.
13. The tongue as claimed in claim 10, wherein said edge section is provided with a protruding friction connection, configured to hold the tongue in the correct position until the glue is cured.
14. The tongue as claimed in claim 10, wherein a protrusion is provided with a protruding friction connection, configured to hold the tongue in position until the glue is cured.
the gluing part is positioned more distally from a center portion of the tongue in the length direction along the first long edge of the tongue than a protrusion that is closest to the gluing part.
16. The tongue as claimed in claim 15, wherein said edge section is provided with a breaking part, configured to be broken when the tongue is inserted into the groove.
17. The tongue as claimed in claim 15, wherein said edge section is provided with an outer protruding stop part, which overlaps an inner stop part, the inner stop part protruding from the edge of the body of the tongue, wherein said inner and outer stop parts cooperate to limit the displacement of the tongue in the groove.
18. The tongue as claimed in claim 15, wherein said edge section is provided with a protruding friction connection, configured to hold the tongue in the correct position until the glue is cured.
19. The tongue as claimed in claim 15, wherein a protrusion is provided with a protruding friction connection, configured to hold the tongue in position until the glue is cured.
Pervan, Darko, et al., U.S. Appl. No. 13/585,179, entitled, "Mechanical Locking System for Floor Panels," filed in the U.S. Patent and Trademark Office on Aug. 14, 2012.
Pervan, Darko, et al., U.S. Appl. No. 13/585,204, entitled "Mechanical Locking System for Floor Panels," filed in the U.S. Patent and Trademark Office on Aug. 14, 2012.
U.S. Appl. No. 60/620,233, Boo.
ES2255642T3 (en) 2006-07-01 Panel, especially floor panel.

References: Application No. 61
 Application No. 1150635
 Application No. 1150775
 Application No. 1150777
 Application No. 61
 Application No. 1150635
 Application No. 1150775
 Application No. 1150777