Technical Field of the Invention
[0001] The present invention relates to a building panel such as a floor panel, a wall panel,
a ceiling panel, a furniture component or the like, which is provided with a mechanical
locking system comprising a displaceable tongue.
Technical Background
[0002] Building panels provided with a mechanical locking system comprising a displaceable
tongue cooperating with a tongue groove for vertical locking is known and disclosed
in, e.g.,
FR 2 975 717, and
FR 2 975 716. The mechanical locking system in
FR 2 975 717 and
FR 2 975 716 has a displaceable tongue comprising an outer element which is pushed by a wedge
part of a removable inner part of the tongue into a tongue groove, for vertical locking
of adjacent edges of two floorboards. A drawback with this known system is that the
locking strength is rather low.
[0003] The above description of various known aspects and drawback is the Applicant's characterization
of such, and is not an admission that any of the above description is considered as
prior art.
[0004] Although the description in the present disclosure relates to a floor panel, the
description of techniques and problems thereof is applicable to other applications
as well. For example, the description is also applicable to panels for other purposes,
such as wall panels, ceiling panels, furniture panels and components, etc.
Summary
[0005] It is an object of embodiments of the present invention to provide an improvement
over the above described conventional techniques.
[0006] A further object of embodiments of the present disclosure is to provide building
panels, such as floorboards, wall panels or panels for furniture, provided with a
locking system that comprises a tongue that improves the vertical locking of the floorboards.
[0007] Another object of embodiments of the present disclosure is to provide a more efficient
production method, which requires less complicated production equipment.
[0008] At least some of these and other objects and advantages that will be apparent from
the present disclosure have been achieved by certain embodiments of the building panels
described herein. The building panels, such as floorboards, are provided with a locking
system that comprises a displacement groove at a first edge of a first floorboard
and a tongue groove at a second edge of a second floorboard. A tongue is arranged
in the displacement groove and is configured to cooperate, in a second position, with
the tongue groove for vertical locking of the first edge and the second edge. The
tongue comprises, in a first position, an inner element and an outer element. The
inner element is removable along the displacement groove, and is configured to cooperate
with the outer element to obtain a displacement of the outer element towards the tongue
groove and thereby obtain the second position. The inner element and the outer element
are configured to vertically overlap each other in the first position to obtain an
increased contact surface between a surface of the displacement groove and the outer
element of the tongue in the second position. The inner element and the outer element
are arranged such that the increased contact surface takes up a moment of force that
arises on the tongue when a load is applied on the first or the second floorboard.
The inner element in the first position may be arranged above or below the outer element.
The inner element in the first position may also be arranged partly above and partly
behind the outer element, or may be arranged partly below the outer element and partly
behind the outer element.
[0009] The entire outer element is in the first position preferably arranged within the
displacement groove.
[0010] The first position may be an initial position before a removal of inner element is
initiated.
[0011] Said inner element and said outer element vertically overlap each other when the
inner element is displaced in order to remove the inner element from the displacement
groove.
[0012] The inner element is preferably a bar element. An advantage with a bar element may
be that the inner element may be displaced forth and back in the case the inner element
gut stuck during the removal of the inner element.
[0013] An innermost surface of the inner element, in the first position, may be arranged
within the guiding groove along an inner surface of the outer element.
[0014] The outer element is provided with a guiding groove at either an inner and upper
edge of the outer element or at an inner and lower edge of the outer element, wherein
at least a part of the inner element in the first position is arranged in said guiding
groove. The outer element may be provided with a guiding groove at an inner surface
of the outer element, between an upper surface and lower surface of the outer element,
wherein at least a part of the inner element is arranged in said guiding groove in
the first position. The guiding groove facilitates the removal of the inner element
by guiding the inner element in a controlled manner and provides a groove without
obstructions and with an eligible friction. The guiding groove preferably extends
essentially along the whole longitudinal length of the outer element. This embodiment
of the outer element provides for a simple production of the outer element for example
by plastic profile extrusion and cutting of the profile in the desired length.
[0015] The inner element comprises a first protruding part configured to cooperate with
the guiding groove, to obtain said displacement of the outer element.
[0016] The first protruding part in the first position is preferably arranged outside of
the outer element and/or in a recess of the outer element. When the inner element
is removed by a displacement along the displacement groove and in the guiding groove,
the outer element is gradually pushed into the tongue groove to obtain the second
position.
[0017] The first protruding part may be wedge shaped or of an essentially spherical shape.
Such shapes facilitate the displacement of the inner element. The outer element may
also be provided with guiding surfaces at the location of the first protruding part
in the first position. The first protruding part is preferably elastic, to make it
easier to displace the first protruding part over irregularities in the displacement
groove. The first protruding part may comprise an elastic material and may be provided
with a recess to increase the elasticity.
[0018] The inner element is preferably provided with a second protruding part, preferably
configured such that the second protruding part is easy to grasp by an installer of
the floorboards. The second protruding part may also be configured such that the inner
element is secured in the correct position.
[0019] The cross section of the inner element may be L-shaped or rectangular or of an essentially
circular shape.
[0020] The inner element may comprise plastic and may be produced by injection moulding
or extrusion. An extruded inner element of plastic may be provided with the first
and or the second protruding part by heating and compressing a part of the extruded
profile in a press tool.
[0021] The inner and outer element may be produced in one piece by injection moulding of
plastic and connected together by a connection configured to break when the inner
element is displaced or when the tongue is inserted into the displacement groove.
[0022] The building panels may comprise a wood-based core, preferably made of at least one
of MDF, HDF, OSB, WPC (Wood Plastic Composite), and particleboard, or of plastic,
such as vinyl or PVC.
Brief Description of the Drawings
[0023] The present invention will by way of example be described in more detail with reference
to the appended schematic drawings, which illustrate several embodiments, wherein
the embodiments of figures 21-25 do not form part of the invention.
Figs. 1-3 show a known locking system with a tongue comprising an inner and an outer
element.
Figs. 4-7 show a tongue comprising a guiding groove at an inner edge, according to
embodiments of the invention.
Figs. 8 and 9 each shows a tongue from a top view, according to embodiments of the
invention.
Figs. 10 and 11 show cross-sections of a tongue comprising an L-shaped inner element,
according to embodiments of the invention.
Figs. 12-15 show tongues comprising a guiding groove at an inner surface, according
to embodiments of the invention.
Figs. 17-19 show a method for producing an inner element of a tongue, according to
embodiments of the invention.
Fig. 20 shows an embodiment of an inner element of a tongue, according to an embodiment
of the invention.
Figs. 21 and 22 show a tongue with an inner element having a circular cross-section,
not forming part of the invention.
Figs. 23-25 show a displacement groove provided with recess, not forming part of the
invention.
Figs. 26 shows a tongue from a top view, according to an embodiment of the present
disclosure.
Detailed Description
[0024] Figs. 1-3 show floorboards provided with a known locking system which comprises a
tongue 20 having an inner element 21 and an outer element 22. The tongue 20 is arranged
in a displacement groove 24 at a first edge 1b of a first floorboard. Fig. 1 shows
a position during assembling of the first floorboard. The first floorboard is arranged
in a second row and is connected at a third edge to a fourth edge of a third floorboard
in first row. A second floorboard is arranged in an angled position with a third edge
adjacent the fourth edge of the third floorboard and a second edge 1c of the second
floorboard is arranged adjacent the first edge 1b of the first floorboard.
[0025] Fig. 2 shows a cross-section of the first edge 1b and the second edge 1c after the
second floorboard is angled down and connected to the third floorboard in the first
row. The first edge 1b and the second edge 1c are in Fig. 2 locked together in the
horizontal direction, and the inner element 21 and the outer element 22 of the tongue
20 are arranged in a first position. The first edge 1b and the second edge 1c are
in the first position vertically unlocked. To lock the first edge 1b and the second
edge 1c in the vertical direction, the inner element 21 is displaced and removed along
the first edge 1b. The inner element 21 is provided with a protruding part. The protruding
part pushes the outer element 22 of the tongue 20 into a tongue groove 23 at the second
edge 1c of the second floorboard when the inner element 21 is displaced and removed.
[0026] Fig 3 shows a cross-section of the first edge 1b and the second edge 1c in a second
position. The inner element 21 of the tongue 20 is in the second position displaced
and removed. The outer element 22 of the tongue 20 cooperates with the tongue groove
23 at the second edge 1c of the second floorboard for vertical locking of the first
edge 1b and the second edge 1c.
[0027] An embodiment of the invention is shown in Fig. 4 and Fig. 5, with an inner and outer
element 31, 30 of the tongue 10 arranged in a displacement groove 32 at a first edge
1b of a first floorboard. Figs. 4 and 5 illustrate the first position and the second
position, respectively, of the inner and outer elements 31, 30. The outer element
30 of the tongue 10 extends below the inner element 31 of the tongue 10, such that
the inner element 31 vertically overlaps the outer element 30. The inner element 31
is in this embodiment arranged in a guiding groove 60 at an inner and upper edge of
the outer element 30. The width x of a first contact surface between a lower surface
of the outer element 30 of the tongue 10 and the displacement groove 32 is increased,
as compared to the known locking system shown in Fig. 3, in order to improve the strength
of the locking system and minimize the offset in height between the first edge 1b
and the second edge 1c when a load is applied, in the second position, on the first
floorboard.
[0028] The second position in which the outer element 30 is pushed into the tongue groove
33 at the second edge 1c is shown in Fig. 5. The outer element 30 is pushed into tongue
groove 33 by a first protruding part 36 (see Figs. 8 and 9) arranged on the inner
element 31, when the inner element 31 is removed and displaced along the first edge
1b. A load applied on the first edge 1b will be taken up by a second contact surface,
between an upper surface of the outer element 30 of the tongue 10 and the displacement
groove 32, and a third contact surface between a lower surface of the outer element
30 of the tongue and the tongue groove 33. Since the second contact surface and the
third contact surface are displaced, the load applied will result in a moment of force,
which is taken up by the first contact surface. In order to increase the strength
of the locking system, the width x of the first contact surface is preferably larger
than the width y of the third contact surface, and preferably the width x is about
twice ore more the width y. For the purpose of reducing the momentum that arises when
a load is applied on the first edge 1b, the horizontal distance between the second
and the third contact surfaces should be as small as possible, preferably less than
about 1 mm and more preferably less than about 0,5 mm. This applies also to the embodiments
described below.
[0029] The locking system additionally comprises in this embodiment a locking strip 6, which
protrudes horizontally from the first edge 1b. The locking strip 6 is provided with
a locking element 8 which cooperates with a locking groove 14 provided at the second
edge 1c for horizontal locking of the first edge 1b and the second edge 1c. A load
applied on the second edge 1c is preferably taken up by a strip contact surface between
an upper surface of the locking strip 6 and a lower surface of the second edge 1c.
[0030] In order to push the first edge 1b and the second edge 1c vertically against each
other, a lower surface of the tongue groove 33 at the third contact surface is preferably
arranged with an angle β1 in relation to the horizontal plane of the floorboards.
The angle β1 may be in the range of about 5 ° to about 20 °, and preferably about
15°.
[0031] In the embodiment shown in Figs. 6 and 7, the tongue 10 is arranged in a displacement
groove 32 at the second edge 1c. The inner element 31 of the tongue 10 is for this
embodiment preferably arranged in a guiding groove 60 at an inner and lower edge of
the outer element 30 of the tongue 10 to obtain an increased first contact surface
between an upper surface of the outer element 30 of the tongue 10 and the displacement
groove 32. Also, in this embodiment the first contact surface takes up a momentum
force resulting from a load applied at the first edge 1b, in a similar way as described
for the embodiment shown in Figs. 4 and 5. In order to push the first edge 1b and
the second edge 1c vertically against each other, an upper surface of the tongue groove
is preferably arranged with an angle β2 in relation to the horizontal plane of the
floorboards. The angle β2 may be in the range of about 5 ° to about 20 °, and preferably
about 15°.
[0032] Figs. 8 and 9 show top view embodiments of a tongue 10 of an elongated shape, to
be arranged in a displacement groove 32 at a first edge 1b of a first floorboard.
The tongue comprises an inner element 31 and an outer element 30. The inner element
31 is arranged in a guiding groove 60 at an inner edge of the outer element 30. The
inner element 31 is preferably a bar element of an elongated shape and is provided
at a first short edge with a first protruding part in the form of a wedge shaped element
36. The wedge shaped element 36 is configured to push the outer element 30 into a
tongue groove 33 of an adjacent second edge 1c of a second floorboard when the inner
element 31 is removed and displaced along the first edge 1b. The wedge shaped element
is in a prefered embodiment guided by the guiding groove during the displacement of
the inner element. The wedge shaped element 36 is, before the displacement, preferably
arranged adjacent and at least partly outside a first short edge of the outer element
30 as shown in Fig. 8. A second edge of the inner element 31 is preferably provided
with a gripping part 37 that facilitates the displacement of the inner element 31.
Fig. 9 shows that the first short edge of the outer element 30 may be provided with
first chamfer 38 that guides the wedge shaped element 36 into the guiding groove 60.
The gripping part 37 is, before displacement of the inner element 31, preferably arranged
adjacent a second short edge of the outer element 30 and preferably outside the second
edge. As shown in Fig. 9 the inner element 31 may be provided with a second protruding
part 40, for a correct positioning of the inner element 31, that before displacement
of the inner element is preferably arranged in a notch or in a second chamfer 39 provided
at the second short edge of the outer element 30. The outer element 30 may have a
uniform cross-section from the first short edge to the second short edge. A uniform
cross-section makes it possible to produce the outer element 30 at low cost, by e.g.,
extrusion of plastic. Also the inner element 31 may have uniform cross-section with
the exception of the protruding part (wedge shaped element) 36 at the first edge.
For the purpose of obtaining a correct position of the inner element 31, a preferred
embodiment of the present disclosure comprises the first chamfer 38 and the second
chamfer 39, which cooperate with the first protruding part 36 and the second protruding
part 40, respectively.
[0033] Figs. 10 and 11 show an embodiment of the tongue 10 comprising an L-shaped inner
element 31 arranged in a corresponding guiding groove at an inner edge of the outer
element 30.
[0034] Figs. 12-15 show an embodiment of the tongue 10 comprising inner element 31 arranged
in a guiding groove 60 at an inner surface of the outer element 30. Fig. 13 shows
that outer edges 42, 43 of the outer element 30 may be chamfered in order to guide
the outer element 30 into the tongue groove 33. Fig. 14 shows a cross section of the
tongue 10 and that the guiding groove 60 may be provided with chamfered edges 41.
Fig. 15 shows a cross section of the tongue 10 in a plane indicated by AA in Fig.
14. The inner element 31 in this embodiment is provided with friction elements 44
that avert that the inner element 31 from falling out before the floorboards are installed.
The first protruding part 36 is provided with a recess 45 that makes its most protruding
part 46 more resilient. The most protruding part 46 may be, during the displacement
of the inner element 31, compressed during, e.g., entrance of the inner element 21
into the guiding groove 60, or at any irregularities in the displacement groove 32.
Also the other embodiments of the tongue 10 may be provided with a friction element
44 on the inner element 31 and/or on the outer element 30, and/or a recess 45 in the
first protruding part 36.
[0035] A method for producing the first protruding part 36 and/or the second protruding
part 40 of the inner element 31 is illustrated in Figs. 17-19. A plastic blank 50
of an elongated shape is displaced into a press tool comprising a first part 55 and
a second part 56. The first part 55 and the second part 56 are displaced against each
other and a protruding part 35 at a first short edge of the plastic blank 50 is formed
under heat and pressure. The process may be repeated for a second short edge of the
plastic blank 50. The method may also comprise the step of forming the second protruding
part 35 simultaneously and essentially in the same manner as the first protruding
part 35. The produced first and/or second protruding part 35 may be of, for example,
an essentially spherical shape or wedge shaped. Fig. 20 shows an inner element 31
that may be produced according to the method illustrated in Figs. 17-19. The inner
element 31 preferably has an essentially circular cross-section and preferably comprises
protruding parts 35 of an essentially spherical shape.
[0036] Figs. 21 and 22 show an embodiment not forming part of the invention wherein an inner
element 31 with a circular cross section may be combined with a displacement groove
32 having an inner surface 62, which is smaller than the opening of the displacement
groove 32. The inner surface 62 may be provided with a round shaped bottom that facilitates
the displacement of the inner element 31.
[0037] An upper or lower surface of the displacement groove 32 may be provided with a recess
34 having an angled surface at an angle β3 to the horizontal plane. The angle β3 may
be in the range of about 3° to about 10°. An embodiment of the recess 34 is shown
in Figs. 23-25. The recess 34 and the angled surface has the effect that the outer
element 30 of the tongue 10 tilts and the outer element 30 is restrained from being
displaced back into the displacement groove 32 after the outer element 30 is pushed
into the tongue groove 33 by the inner element 31. Such a recess 34 may be provided
in locking systems comprising any type of the disclosed displaceable tongue.
[0038] A prefered embodiment of the tongue 10 is shown in Fig 26. The inner element 31 and
the outer element 30 are produced in one piece by injection moulding of plastic. The
inner element 31 and the outer element 30 are connected together by a connection 47
configured to break when the inner element is displaced or when the tongue is inserted
into the displacement groove.
1. Floorboards including at least a first floorboard and a second floorboard provided
with a mechanical locking system comprising:
a displacement groove (32) at a first edge (1b) of the first floorboard and a tongue
groove (33) at a second edge of the second floorboard (1c), a tongue (10) arranged
in the displacement groove (32) and configured to cooperate, in a second position,
with the tongue groove (33) for vertical locking of the first edge (1b) and the second
edge (1c),
the tongue (10) comprises, in a first position, an inner element (31) and an outer
element (30), the inner element being removable along the displacement groove (32)
and configured to cooperate with the outer element to obtain a displacement of the
outer element (30) towards the tongue groove (33) and thereby obtain the second position,
wherein the outer element (30) is provided with a guiding groove (60) at either an
inner and upper edge of the outer element or at an inner and lower edge of the outer
element (30), and at least a part of the inner element in the first position is arranged
in said guiding groove (60), and the inner element (31) comprises a first protruding
part (36) configured to cooperate with the guiding groove (60), to obtain said displacement
of the outer element, J 2.
characterized in
that said inner element (31) and said outer element (30) vertically overlap each other
in the first position such that an increased contact surface between the outer element
(30) and the displacement groove (32) is obtained in the second position when the
inner element (31) is removed, wherein the contact surface is configured to take up
a moment of force that arises on the tongue when a load is applied on the first or
the second floorboard.
2. Floorboards as claimed in claim 1, wherein said inner element (31) and said outer
element (30) vertically overlap each other when the inner element is displaced, in
order to be removed from the displacement groove.
3. Floorboards as claimed in claim 1 or 2, wherein the inner element (31) is a bar element.
4. Floorboards as claimed in any one of the preceding claims, wherein the inner element
(31) in the first position is arranged above or below the outer element (30).
5. Floorboards as claimed in any one of the preceding claims 1-3, wherein the inner element
(31) in the first position is arranged partly above and partly behind the outer element
(3), or is arranged partly below the outer element and partly behind the outer element.
6. Floorboards as claimed in any one of the preceding claims , wherein the guiding groove
(60) extends essentially along the whole longitudinal length of the outer element.
7. Floorboards as claimed in any one of the preceding claims, wherein in the first position
an innermost surface of the inner element (31) is within the guiding groove (60) along
an inner surface of the outer element (30).
8. Floorboards as claimed in any one of the preceding claims, wherein the first protruding
part (36) in the first position is arranged outside of the outer element and/or in
a recess of the outer element.
9. Floorboards as claimed in any one of the preceding claims, wherein the first protruding
part is one of wedge shaped and essentially spherical shaped.
10. Floorboards as claimed in any one of the preceding claims, wherein a cross section
of the inner element (31) is one of an L-shape, rectangular shape, and an essentially
circular shape.
11. Floorboards as claimed in any one of the preceding claims, wherein the entire outer
element is arranged within the displacement groove in the first position.
12. Floorboards as claimed in any one of the preceding claims, wherein the first position
is an initial position before a removal of inner element is initiated.
13. Floorboards as claimed in any one of the preceding claims, wherein said inner element
(31) and said outer element (30) horizontally overlap each other in the first position.
14. Floorboards as claimed in any one of the preceding claims, wherein the inner and outer
elements are produced in one piece by injection moulding of plastic.
15. Floorboards as claimed in any one of the preceding claims, wherein the inner and outer
elements (31, 30) are connected together by a connection (47) configured to break
when the inner element is displaced, in order to be removed from the displacement
groove, or when the tongue is inserted into the displacement groove.
1. Bodenbretter mit mindestens einem ersten Bodenbrett und einem zweiten Bodenbrett,
die mit einem mechanischen Verriegelungssystem versehen sind, umfassend:
eine Verschiebungsnut (32) an einer ersten Kante (1b) des ersten Bodenbretts und einer
Federnut (33) an einer zweiten Kante des zweiten Bodenbretts (1c), eine Feder (10),
die in der Verschiebungsnut (32) angeordnet und dazu konfiguriert ist, in einer zweiten
Position mit der Federnut (33) zusammenzuwirken, um die erste Kante (1b) und die zweite
Kante (1c) vertikal zu verriegeln,
wobei die Feder (10) in einer ersten Position ein erstes inneres Element (31) und
ein zweites äußeres Element (30) umfasst, das innere Element entlang der Verschiebungsnut
(32) entfernbar und dazu konfiguriert ist, mit dem äußeren Element zusammenzuwirken,
um eine Verschiebung des äußeren Elements (30) in Richtung der Federnut (33) zu erzielen
und dadurch die zweite Position zu erhalten, wobei das äußere Element (30) mit einer
Führungsnut (60) entweder an einer inneren und oberen Kante des äußeren Elements oder
an einer inneren und unteren Kante des äußeren Elements (30) versehen ist, und mindestens
ein Teil des inneren Elements in der ersten Position in der Führungsnut (60) angeordnet
ist, und das innere Element (30) einen ersten Vorsprungsteil (36) umfasst, der dazu
konfiguriert ist, mit der Führungsnut (60) zusammenzuwirken, um die Verschiebung des
äußeren Elements zu erzielen,
dadurch gekennzeichnet, dass
sich das innere Element (31) und das äußere Element (30) vertikal in der ersten Position
überlappen, so dass eine vergrößerte Kontaktfläche zwischen dem äußeren Element (30)
und der Verschiebungsnut (32) in der zweiten Position erhalten wird, wenn das innere
Element (31) entfernt wird, wobei die Kontaktfläche dazu konfiguriert ist, ein Kraftmoment
aufzunehmen, das an der Feder entsteht, wenn eine Last auf das erste oder das zweite
Bodenbrett aufgebracht wird.
2. Bodenbretter nach Anspruch 1, wobei das innere Element (31) und das äußere Element
(30) einander vertikal überlappen, wenn das innere Element verschoben wird, um aus
der Verschiebungsnut entfernt zu werden.
3. Bodenbretter nach Anspruch 1 oder 2, wobei das innere Element (31) ein Stabelement
ist.
4. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei das innere Element (31)
in der ersten Position oberhalb oder unterhalb des äußeren Elements (30) angeordnet
ist.
5. Bodenbretter nach einem der vorhergehenden Ansprüche 1 bis 3, wobei das innere Element
(31) in der ersten Position teilweise oberhalb und teilweise hinter dem äußeren Element
(3) angeordnet ist, oder teilweise unterhalb des äußeren Elements und teilweise hinter
dem äußeren Element angeordnet ist.
6. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei sich die Führungsnut (60)
im Wesentlichen entlang der gesamten longitudinalen Länge des äußeren Elements erstreckt.
7. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei sich in der ersten Position
eine innerste Fläche des inneren Elements (31) in der Führungsnut (60) entlang einer
Innenfläche des äußeren Elements (30) befindet.
8. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei der erste Vorsprungsteil
(36) in der ersten Position außerhalb des äußeren Elements und/oder einer Aussparung
des äußeren Elements angeordnet ist.
9. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei der erste Vorsprungsteil
eines aus keilförmig und im Wesentlichen kugelförmig ist.
10. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei ein Querschnitt des inneren
Elements (31) eines aus einer L-Form, rechtwinkligen Form und einer im Wesentlichen
runden Form ist.
11. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei das gesamte äußere Element
in der Verschiebungsnut in der ersten Position angeordnet ist.
12. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei die erste Position eine
Anfangsposition ist, bevor eine Entfernung des inneren Elements begonnen wird.
13. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei sich das innere Element
(31) und das äußere Element (30) in der ersten Position überlappen.
14. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei das innere und äußere
Element durch Spritzgießen von Kunststoff einstückig hergestellt werden.
15. Bodenbretter nach einem der vorhergehenden Ansprüche, wobei das innere und äußere
Element (31, 30) durch eine Verbindung (47) verbunden sind, die dazu konfiguriert
ist, zu brechen, wenn das innere Element verschoben wird, so dass es aus der Verschiebungsnut
entfernt werden kann, oder wenn die Feder in die Verschiebungsnut eingesetzt wird.
1. Planches comprenant au moins une première planche et une seconde planche munies d'un
système de verrouillage mécanique comprenant :
une rainure de déplacement (32) sur un premier bord (1b) de la première planche et
une rainure de languette (33) sur un second bord de la seconde planche (1c), une languette
(10) disposée dans la rainure de déplacement (32) et configurée pour coopérer, dans
une seconde position, avec la rainure de languette (33) pour un verrouillage vertical
du premier bord (1b) et du second bord (1c),
la languette (10) comprend, dans une première position, un élément interne (31) et
un élément externe (30), l'élément interne étant détachable le long de la rainure
de déplacement (32) et configuré pour coopérer avec l'élément externe pour obtenir
un déplacement de l'élément externe (30) vers la rainure de languette (33) et obtenir
par-là la seconde position, où l'élément externe (30) est muni d'une rainure de guidage
(60) sur l'un d'un bord interne et supérieur de l'élément externe ou d'un bord interne
et inférieur de l'élément externe (30), et au moins une partie de l'élément interne
dans la première position est disposée dans ladite rainure de guidage (60), et l'élément
interne (31) comprend une première partie de saillie (36) configurée pour coopérer
avec la rainure de guidage (60), pour obtenir ledit déplacement de l'élément externe,
caractérisées en ce que
ledit élément interne (31) et ledit élément externe (30) se chevauchent verticalement
l'un l'autre dans la première position de sorte qu'une surface de contact augmentée
entre l'élément externe (30) et la rainure de déplacement (32) est obtenue dans la
seconde position lorsque l'élément interne (31) est enlevé, où la surface de contact
est configurée pour prendre un moment de force qui apparaît sur la languette lorsqu'une
charge est appliquée sur la première ou la seconde planche.
2. Planches selon la revendication 1, où ledit élément interne (31) et ledit élément
externe (30) se chevauchent verticalement l'un l'autre lorsque l'élément interne est
déplacé, afin d'être enlevé de la rainure de déplacement.
3. Planches selon la revendication 1 ou 2, où l'élément interne (31) est un élément de
barre.
4. Planches selon l'une quelconque des revendications précédentes, où l'élément interne
(31) dans la première position est disposé au-dessus ou en dessous de l'élément externe
(30).
5. Planches selon l'une quelconque des revendications 1-3 précédentes, où l'élément interne
(31) dans la première position est disposé partiellement au-dessus et partiellement
derrière l'élément externe (3), où est disposé partiellement en dessous de l'élément
externe et partiellement derrière l'élément externe.
6. Planches selon l'une quelconque des revendications précédentes, où la rainure de guidage
(60) s'étend essentiellement le long de la longueur longitudinale complète de l'élément
externe.
7. Planches selon l'une quelconque des revendications précédentes, où dans la première
position une surface intérieure de l'élément interne (31) se trouve dans la rainure
de guidage (60) le long d'une surface interne de l'élément externe (30).
8. Planches selon l'une quelconque des revendications précédentes, où la première partie
de saillie (36) dans la première position est disposée à l'extérieur de l'élément
externe et/ou dans un creux de l'élément externe.
9. Planches selon l'une quelconque des revendications précédentes, où la première partie
de saillie est une de cale façonnée et façonnée de manière essentiellement sphérique.
10. Planches selon l'une quelconque des revendications précédentes, où une section transversale
de l'élément interne (31) est une d'une forme L, forme rectangulaire, et forme essentiellement
circulaire.
11. Planches selon l'une quelconque des revendications précédentes, où l'élément externe
entier est disposé dans la rainure de déplacement dans la première position.
12. Planches selon l'une quelconque des revendications précédentes, où la première position
est une position initiale avant qu'un enlèvement d'élément interne soit initié.
13. Planches selon l'une quelconque des revendications précédentes, où ledit élément interne
(31) et ledit élément externe (30) se chevauchent horizontalement l'un l'autre dans
la première position.
14. Planches selon l'une quelconque des revendications précédentes, où les éléments interne
et externe sont produits en une pièce par moulage par injection de plastique.
15. Planches selon l'une quelconque des revendications précédentes, où les éléments interne
et externe (31, 30) sont connectés ensemble par une connexion (47) configurée pour
casser lorsque l'élément interne est déplacé, afin d'être enlevé de la rainure de
déplacement, ou lorsque la languette est insérée dans la rainure de déplacement.