The invention relates to a covering of mechanically interconnectable
Ceilings and floor coverings, such as prefinished parquet,
Real wood floors or laminate floors
from several rows of predominantly rectangular in their configuration
Panels. Conventionally, the panels have one longitudinal side
and on one side of the head through grooves and on the opposite side
Longitudinal side or head side continuous springs, to the
Grooves are adapted form fit. Through the connection
of tongue and groove the panels are laid, the panels
second adjacent rows offset from each other.
is known on the grooves and springs mechanical locking means
form, which in adjacent in a floor covering
Panels get into latching engagement with each other. This is intended
a joint formation in the laid floor covering by stretching
or shrinking operations are avoided. To the groove
and spring of the panels are matched locking elements
in the form of depressions, recesses or protrusions
trained to be connected floor panels in the assembled position
to hold it without glue. In general, the panels along their
Long sides turned into each other or clicked and then
moved laterally so that locking strips on the head sides
engage. To facilitate this, you can choose from
the opposite head side slight hammer blows
be applied with the aid of a block impact. in this connection
There is a risk that it even with the most careful work
damage to the floor panels can occur.
There are also solutions in which the abutting head sides are joined together by a spring which can be displaced in its longitudinal direction. This eliminates the manual hammering by means of a hammer. The springs are pre-assembled, eliminating the need for subsequent insertion. Such a floor covering is the subject of WO 2008/017301
, In this case, a projecting end of a spring is displaced into a head-side groove in order to partially displace the spring from one groove into the corresponding groove of the adjacent panel. In this way, the panels are locked together.
In order to
the displaceability of the spring at all possible
is, it must be kept with a certain amount of play and in the appropriate
exactly aligned opposite groove of the complementary
Panels are used. This game is preferably as possible
low so it is in the area of the butt joint of two panels
does not come to a height offset. Due to the principle can
However, a certain game can not be avoided.
Invention is based on the object, a coating of mechanical
interconnectable panels, in particular a floor covering
show, in which the height offset in the
Butt joint is minimal.
Task is with a covering with the features of the claim
Subclaims relate to advantageous developments of
Panels of the flooring of the invention are for
provided and suitable with other similar panels
to be mechanically connected. The connection is via
arranged on the complementary sides of the panels connecting elements
in the form of tongue and groove joints. The neighboring panels
each have at their mutually complementary sides
a horizontal groove on. In one of the grooves is opposite
the panel arranged at least in part relatively displaceable spring.
The spring engages in connecting the adjacent panels in one
Groove of the adjacent panel, thus blocking the adjacent ones
Panels against a vertical displacement against each other.
The spring has a holding portion, which in the groove of the
Spring-holding panel is arranged.
Spring has at least one projection. The lead jumps
transverse to the laying level, d. H. towards the top or to
Underside of the panels. A projection is given when
the projecting area of the spring is wider than that in the area
the projection transversely to the laying plane measured groove width in the
Lock position. The projection therefore jumps in particular
opposite to the groove width matched to the holding section
the spring in front.
Orientation of the grooves and thus also the springs arranged there
it is noted that the grooves are preferably horizontal, d. H. in laying level,
are oriented. But it is also possible, the grooves and
so that the springs are inclined, d. H. at an acute angle, to the laying level
The grooves each have different long upper and lower groove cheeks, so that opposite to the shorter groove cheeks protruding portions of the longer groove cheeks in parallel spaced from each other. These projecting portions of the groove cheeks serve as support surfaces for the projection. The projection is namely intended to be in contact with this projecting portion of the groove cheek transverse to the laying plane, that is to be displaced usually perpendicular to the laying plane of the panels. In other words, the projection or the projecting portion of the spring is not only pushed back in the vertical direction and reduced to the width of the groove between the opposite projecting portions of the longer groove cheeks, but at the same time even in the laying plane, ie horizontally displaced. The horizontal displacement results from the fact that the projection is an integral part of the spring, which is already supported with its one end in the groove, but is configured so that the other end of the spring is displaced in the direction of the laying plane. The projection is thus in operative connection with a locking portion of the spring, which is displaceable by the movement of the projection in the direction of the groove of the adjacent panel.
Nut within the meaning of the invention is not just the area to understand
which is between the directly opposite groove cheeks
extends. It also includes the area
the opposite of the long groove cheek, as this room also
is claimed by the spring. The groove cheeks, in particular
the longer groove cheeks, in their over
the groove depth considered vary distance. Especially the over
the shorter groove cheeks projecting areas of the longer ones
Grooved cheeks can be shorter than the shorter ones
Grooved cheeks offset or offset so that the distance
enlarged to the opposite groove cheek. Yet
also include the remote areas to the groove.
Holding section can be connected via a connecting section
be connected to the locking portion. Here is the connection section
depending on the installation position, preferably via a at its top
or hinged joint to the underside of the panel
connected to the holding section. The locking section is over
a arranged on its diagonally opposite edge
Joint coupled to the connecting portion. The position
This joint determines the location of the furthest
projecting point of the projection.
Spring is before connecting two panels in a starting position
at least partially folded, wherein holding section, connecting portion
and locking portion around the joints against each other in vertical
Direction are pivoted out of the plane of the holding portion.
To enable such a folding are to each other
facing side surfaces of holding section, connecting portion
and locking portion each complementary to the top
and bevelled underside of the panels.
Connecting two adjacent panels, the projection is through the
Moving the longer groove cheeks of the panels shifted.
Depending on the installation position, the projection can point up or down.
Preferably, the projection is made by contact with a lower
Grooved cheek of the locking portion receiving groove of the first
Relocated panels. The vertical movement results in a horizontal
Movement in which the projection on the lower groove cheek the
slides along the locking portion receiving groove along. The
conditionally pivoting the connecting portion around both joints
in the horizontal plane of the holding section. Likewise, the locking portion
around the hinge of the projection in the horizontal plane of the holding section
pivoted. The spring is stretched out of its folded state
as soon as the longer groove flanks as far as possible
have approximated. That is the case when the height offset
between adjacent panels is minimal. The locking section
becomes due to the stretching movement of the spring in the groove of the first panel
pressed. To thread the connection section
can facilitate in the groove, a groove facing end face
the connecting section beveled or rounded.
the displacement of the locking portion of the spring in the groove of the
adjacent panel is the hinge between locking portion
and connecting portion at the level of the lower groove cheek
the groove receiving the locking portion. Holding section,
Connecting portion and locking portion are after connecting
two adjacent panels preferably aligned horizontally.
Since the lower groove cheek of the tongue holding the spring only over one
Width of the holding portion extends, which lie to the bottom
the panels facing surfaces of connecting section and
Locking portion on a lower groove cheek of the locking portion
the spring receiving groove.
In the embodiment described above, it is natural
also conceivable to connect individual sections of the spring in the middle.
In this case, the edges facing the underside of the panels form
of connecting portion and locking portion of the projection.
Likewise, the spring next to the holding portion, the connecting portion
and the locking portion have further portions.
Furthermore, embodiments of springs are conceivable in which a projection is coupled to a specific mechanism. This mechanism causes a locking portion of the spring is pressed in the horizontal direction in the groove of the adjacent panel. The mechanism is triggered as soon as the projection with a corresponding groove cheek comes into contact and is displaced in the direction of the other groove flank.
Concrete design of the spring also depends on the installation method
from. especially if a panel is not in a parallel, linear
Movement is to be stored, but by a pivoting movement
to be angled, so to speak. Approach during the pivoting movement
the protruding areas of the longer groove flanks over
the length of the groove is considered at a given time
different far. Example: In a 45 ° position
the groove flanks are at one end of the groove almost in the
Endposition, while the groove flanks at the other end a
Have a distance of several centimeters. Especially in this case
it is convenient, either several at a distance
to provide mutually arranged springs, which in their kinematics
do not hinder. But it is also possible to provide a spring,
which by transverse to the groove slots in independently
is divided from each other operable spring segments.
have the spring segments on a common holding section. These
Configuration can be called comb-like. This embodiment
proves to be particularly advantageous if the second panel,
starting at one end of the groove, in the longitudinal direction of
Groove is lowered, so that the spring sections in succession
engage in the groove of the first panel. Independent of each other
actuatable spring segments can also be used at each
another type of installation are used, d. H. even if the
Panels are not pivoted to each other, but in a parallel movement
Locking section may be at its upper and / or lower
Nutwange facing side surface have a profiling.
The connecting portion may as well as the locking portion
have a profiling on one or both side surfaces.
This profiling can be wavy, for example,
have individual teeth or a sawtooth profile.
Grooved cheeks of the panels can be complementary to profiling
Have profiling. It is also possible at one
or to provide latching elements on both side surfaces of the locking section,
which when inserting the locking portion in the groove of the
adjacent panels in corresponding recesses of the upper or lower
Engage groove cheek.
is that the locking section which is the shorter
Groove cheek adjoining gap to the adjacent longer
Grooved cheek of the other groove bridged by the height offset
to minimize in the area of the butt joint of the panels. The locking section
must therefore partly from the groove receiving it, that is about
protrude the shorter groove cheek this groove.
The spring can extend over the entire length of the
Extending groove. In addition, in the longitudinal direction
the groove may be provided at a distance from each other a plurality of springs.
These can be operated independently
Have locking portions. Thus, panels can also be longitudinally
arrange the groove offset from each other. It is conceivable that
To connect holding portions in the region of the groove with each other, wherein the
Connection used simultaneously as a spacer between the springs
one of the panels, a locking bar is provided, the
serves the adjacent panels against tensile load in a laying plane
to back up. The locking bar thus serves to couple the panels
in the laying plane, while the springs should prevent
that the panels shift relative to each other in the vertical direction.
Because the locking bar, which under the adjacent panel
engages, at a relatively large distance to the top of the panels
is arranged in addition, that of
The locking bar under attacked panel primarily
supported on a support strip. This is in larger
Distance from the locking bar arranged as the groove. With
In other words, the groove is located between the support strip
and the locking bar. The support bar has the function
the distance of the support point from the top of the panels too
reduce, which is especially true for very thin-walled and
softer materials is beneficial. Because of the proximity
the support bar to the top of the panels are punctiform in
vertical forces acting near a butt joint,
which act on the gripped panel, in a shorter way
introduced into the adjacent, underarching panel than this over
the deeper located locking bar is possible. On
Reason of support in close proximity to
Force application point is the height offset between two panels
considerably lower in case of load.
Overall, spring can consist of a uniform material.
Accordingly thin designed areas can as
Serve movie joints. The thicker areas are then used to hold the
forces acting transversely to the laying level.
The material for the spring may be both a wood material, that is, it may be wood or a material containing wood fibers, or a material that is made of wood as a base material, such as liquid wood. Metal and metal alloys, such as. As spring steel, come for the springs as well as Composites. The use of bimetallic or mixed plastics is just as possible as the use of materials based on thermoplastic or thermosetting plastics. The spring can also consist of a fiber-reinforced plastic. Preferably, the spring is elastic.
Spring can be performed under bias before connecting
be. Due to the bias of the locking portion is in the groove
pressed the adjacent panel and the connection of two
Additionally secured panels.
with restoring forces due to elasticity
or because, for. B. a spring steel has been used, are suitable
the spring after opening the connection again in the
Retract starting position or jump back
Joints connecting portions of the spring are preferably
made of the same material as the spring. Naturally
it is also possible for this another material
to choose, for example, a kind of hotmelt. Under hotmelt
are melt or hot glue to understand which
for example, based on polymers, resins or waxes and after
the cooling still have a flexibility. The basic idea
is based on a functional separation of elastic and non-elastic
Areas. While the articulated areas deformable materials
require is a deformation of the locking portion
not wished. Therefore, should for the locking section a
Material lower elasticity are used than
in the region of the joints, or of the connection section.
Special feature are springs, which can assume two states.
The spring can have a stable position as well as a metastable position
take, from the spring at the termination of the force
automatically returns to the stable state.
Also, a bistable spring can be provided, which is characterized
indicates that there are two stable positions and each change
from one position in the other requires a force.
Spring with a metastable position is from the stable position
transferred to a metastable position by the process of buckling,
wherein the restoring force of the metastable position
in the stable position is much lower than vice versa. This cheap
Force-displacement characteristic can also be utilized in the present invention
become. The bulge is equivalent to a lead on the spring,
to be relocated. The lead is shifted so far
until the spring suddenly jumps into the metastable position. The
is the locking position. By a crackling noise,
as is the case with metal springs or at least metal bumps
is set, the locking position is also audible.
But it also turns a slight jerk when the reaches the locking position
is. The haptic information and also an acoustic information
The so-called clicker effect is a helpful feedback when
Laying and also when picking up the panels. Regarding the materials
turns the clicker effect primarily in metallic
Materials. But the principle is also fungible with others
Materials such. B. plastics feasible.
There is no limitation with regard to the material
the panels, provided that this particular by machining
can be brought into the necessary form. It can work
both panels based on wood-based materials or plastics
act as well as mineral materials and composites. Also
the size of the panels plays a subordinate
Role. The panels can also be large-format,
z. B. as device plates of 600 mm × 1500 mm.
Inventive concept is applicable in particular to all floor systems,
in which an upper covering is arranged on a carrier,
such as real wood flooring, laminate, support
with painted surfaces as top coat, linoleum, cork
on backing plates etc. The cover layer may in particular consist of a
Decorative paper with overlay consisting of the appearance of the element plate
certainly. A floor covering can thus be
a parquet floor, a finished parquet floor, a real wood floor or
to trade a laminate floor.
The floor covering can also be a particular
Double floor or hollow floor act, which is below
of the covering, d. H. below the panels is a cavity, the
is used for the cable routing. Especially at
These raised floors, it is advantageous if individual panels
can be resumed, what with the invention
is very well feasible. Because the said springs not only on the head
but also be provided on the long sides of a panel,
is it possible to use individual panels z. B. by a siphon
lift again and then also store again.
The invention will be described below with reference to the schematic drawings
illustrated embodiments explained in more detail.
1a to 1c each in cross section a section of the connecting region of two adjacent panels, in different mounting positions and
2a to 7b and 8th each different embodiments of the spring.
The 1a shows a cross section through the connecting region of two panels 1 . 2 , The panels 1 . 2 are configured so that the panels 1 . 2 can be assembled to a floor covering. The panels 1 . 2 have an underside facing the panel background 3 and an upper side facing away from the panel background 4 , The illustration shows a left first panel 1 and on the right a second panel 2 , before connecting both panels 1 . 2 , The second panel 2 points to his, in a laying position to the first panel 1 pointing head side, which in the following with page 5 is designated, extending in a horizontal direction groove 6 on.
Here is an upper groove cheek 7 wider than a lower groove cheek 8th , In the groove 6 is a spring 9 arranged.
The feather 9 is with her holding section 10 in the groove 6 arranged. The holding section 10 is with its opposite the lower groove cheek 8th protruding, to top 4 of the panel 2 pointing edge with a connecting section 11 coupled. The coupling of holding section 10 and connecting section 11 done by a joint 12 , This joint 12 is executed in this embodiment as a film hinge. It consists of the same material as the spring 9 and can be manufactured with this in one production step. To the connecting section 11 closes a locking section 13 which is intended, with a groove 6 of the second panel 2 complementary groove 14 of the first panel 1 to get in touch. The locking section 13 is with the connection section 11 about a joint 15 , which is also designed here as a film joint connected. The joint 15 is between two to each other and to the bottom 3 the panels 1 . 2 facing edges of the locking portion 11 and the connection section 13 arranged. The connection area between locking section 11 and connecting section 13 forms with the joint 15 one opposite the groove 6 of the second panel 2 towards the bottom 3 the panels 1 . 2 protruding projection 16 , The mutually facing side surfaces of holding section 10 , Connecting section 11 and locking section 13 are designed so that the spring 9 is quasi folded in an initial state by the connecting section 11 opposite the holding section 10 and the locking portion 13 opposite the connecting section 11 from the horizontal plane E of the holding section 10 are pivoted out.
The lead 16 comes when connecting the first panel 1 with the second panel 2 with a lower groove cheek 17 the the locking section 13 receiving groove 14 in contact ( 1b ). Upon further relocation of the second panel 2 in the direction of the arrow P becomes the projection 16 through the lower groove cheek 17 towards the top 4 of the panel 2 pressed.
This will be connecting section 11 and locking section 13 around the joints 12 . 15 against each other from the folded position into a horizontal plane E of the holding portion 10 pivoted. The locking section 13 protrudes over the length of the upper groove cheek 7 out and reach into the groove 14 of the adjacent first panel 1 one.
The first panel 1 engages with a locking strip 18 underneath the second panel 2 , The second panel 2 has for this purpose a downwardly open dome channel 19 and a subsequent, downwardly directed, end Kuppelwulst 20 , The locking bar 18 of the first panel 1 faces one as a page 21 designated head side horizontally in front, so that the dome bulge 20 in the upwardly open dome channel 22 the locking bar 18 attacks. To the dome channel 22 closes at the end of the locking bar 18 an upward dome bulge 23 in the assembly position in the associated dome channel 19 of the second panel 2 intervenes. Through the undercut of Kuppelwülste 20 . 23 are the two panels 1 . 2 in the laying level V, ie in the horizontal direction of the laid floor covering, secured against displacement. Because of the dome bulges 20 . 23 in her contact area 24 abut each other obliquely to the laying plane V, is when swinging down the second panel 2 in the direction of the arrow P on the already laid first panel 1 the second panel 2 with his, to the side 21 of the first panel 1 complementary side 5 against the first panel 1 pulled, so the sides 5 . 21 the panels 1 . 2 abut each other.
In addition to the contact between the dome beads 20 . 23 lies the second panel 2 on a support rail 25 above a groove 14 , The support strip 25 is thus located at a smaller distance from the top 4 of the left panel 2 as the locking bar 18 on the panel 2 Usually supported in the vertical direction. Due to the smaller distance of the support strip 25 to the top 4 Tighter tolerances can be maintained, so that with this solution a possible height offset between the panels 1 . 2 can be minimized. The support strip 25 immediately adjacent to the groove 14 so that its lower edge forms part of an upper groove cheek 26 the groove 14 is. The support strip 25 thus extends together with the locking portion 13 the feather 9 receiving groove 14 ,
The panels 1 . 2 preferably touch at certain support and breakpoints. The locking bar 18 and the dome bulge 20 In this embodiment, they only touch in the contact region described above 24 , However, the remaining space between the locking bar 18 and the dome bulge 20 so small a gap, that under extreme vertical load also a touch can not be excluded, which is due to the limited elasticity of the materials. Due to the free space also manufacturing tolerances can be compensated.
The locking section 13 extends into the in 1c illustrated locking position from the left groove 14 out and thus bridges the gap between the adjacent upper groove cheeks of the left and the right groove 14 . 6 ,
For clarity, were for the panels 1 . 2 in the following 2a to 5b the reference numerals of 1a to 1c but that does not exclude that the panels 1 . 2 in the specific embodiments due to the adaptation to the different springs in their design may slightly differ from each other.
In addition, the following are the panels 1 . 2 only partially shown. But they all have the in the 1a to 1c described locking bar as well as dome channels and Kuppelwülste on
2a shows a further embodiment of a in a second panel 2 arranged spring 9a , The feather 9a is with a holding section 27 in a groove 6 of the second panel 2 established. The attached to the holding section 27 subsequent connection section 28 is curved in an arc. In this case, the arcuate connecting portion forms 28 a lead 16a which is towards the bottom 3 of the panel 2 and stands towards the bottom 3 opposite the lower groove cheek 8th the spring 9a holding groove 6 protrudes. Located at the connecting section 28 subsequent locking section 29 is approximately transverse to the longitudinal direction of the groove 6 aligned. Of course, spring designs are also possible on which an end section of the connecting section facing the adjacent panel forms the locking section.
When connecting two adjacent panels 1 . 2 becomes the curved connection section 28 through a lower groove cheek 17 the groove 14 of the first panel 1 in the direction of the upper groove cheek 7 the groove 6 of the second panel 2 relocated. This will make the curved connection section 28 the feather 9a flattened and the locking section 29 transverse to the longitudinal direction of the groove 6 in the groove 14 of the first panel 1 pushed. The feather 9a is stretched, so to speak. The curved connection section 28 gets between the lower groove cheek 17 the groove 14 of the first panel 1 and the upper groove cheek 8th the groove 6 of the second panel 2 compressed. The feather 9a This makes it longer and due to their elasticity when connecting the adjacent panels 1 . 2 biased. Thus, the spring 9a preloaded and sits non-positively in the opposing grooves 6 . 14 the panels 1 . 2 ( 2 B ).
3a shows a further embodiment of a spring 9b made of an elastic material. The feather 9b is divided into three sections. In each case, between the holding section 30 and the connection section 31 and between the connecting section 31 and the locking portion 32 a lead 33 intended. The projections 33 stand towards the bottom 3 of the panel 2 over the lower groove cheek 8th the groove 6 of the second panel 2 out. Both projections 33 is opposite, so on top of that 4 of the panel 2 pointing side of the spring 9b , a recess 34 arranged. The recess 34 can, as shown here, have a triangular cross-section. Semicircular or rectangular cross sections are also conceivable.
When connecting two adjacent panels 1 . 2 presses the lower groove cheek 17 the groove 14 of the first panel 1 the projections 33 towards the upper groove cheek 7 the groove 6 of the second panel 2 , Due to the elastic material used here, the material pushes to the top 4 pressed tabs 33 in the respective opposite recess 34 and the spring 9b expands transversely to the longitudinal direction of the groove 6 out. Due to the expansion reaches the locking section 32 in the groove 14 of the first panel 1 , Since there is a height H of the grooves 6 . 14 of the first panel 1 and second panels 2 after connecting no longer changes, the pressure of the lower groove cheek remains 17 on the projections 33 exist, the spring 9b remains stretched and sits frictionally in the grooves 6 . 14 the panels 1 . 2 ( 3b ).
In a further embodiment ( 4a ) are connecting and locking section 35 the feather 9c made in one piece. Here is a in the longitudinal direction of the groove 6 extending free space 36 in the connection and locking section 35 intended. Of course, in alternative embodiments, several open spaces are conceivable. The one with the connection and locking section 35 connected holding section 37 is in the groove 6 of the second panel 2 arranged.
At the bottom 3 the panels 1 . 2 wei send side of the spring 9c is in the area of open space 36 a lead 16b located which towards the bottom 3 the panels 1 . 2 over the lower groove cheek 7 the groove 6 of the second panel 2 protrudes. The lead 16b is due to a height H of the groove 6 widened portion of the connecting and locking section 35 educated. The feather 9c is made of an elastic material so that when connecting two panels 1 . 2 the projection through the lower groove cheek 17 the groove 14 of the first panel 1 upwards towards the upper groove cheek 8th the groove 6 of the second panel 2 is pressed. Due to the elasticity of the spring 9c becomes the widened portion of the connecting and locking section 35 in its width to the height H of the groove 6 of the second panel 2 , or the groove 14 of the first panel 1 reduced. The here circular cross section of the free space 36 becomes an ellipse, which is an extension of the locking and connecting portion 35 transverse to the longitudinal direction of the groove 6 entails. By stretching reaches the locking and connecting portion 35 in the groove 14 of the adjacent first panel 1 and is held there non-positively ( 4b ).
5a shows an exemplary and schematic representation of a spring 9d with a locking mechanism. This shows the spring 9d a holding section 38 on, with which they in the groove 6 of the second panel 2 is held. The holding section 38 has a biased spring in the initial position 39 on. The holding section 38 is over a connecting section 40 with the locking portion 41 connected. The connecting section 40 has one opposite the lower groove cheek 8th the groove 6 of the second panel 2 towards the bottom 3 the panels 1 . 2 protruding projection 42 on which he simultaneously with the prestressed spring element 39 of the holding section 38 is held in the starting position.
When connecting two panels 1 . 2 becomes the lead 42 through the lower groove cheek 17 the groove 14 of the first panel 1 towards the top 4 of the second panel 2 relocated. Thereby, the holder of the connecting portion 41 released and the spring force F of the spring element 39 acts on the connection section 41 , which in turn on the locking portion 42 works and this in the groove 14 of the first panel 1 in shifts. The transverse to the longitudinal direction of the groove 14 acting spring force F of the spring element 39 causes a non-positive fit of the locking portion 42 in the groove 14 of the first panel 1 ( 5b ).
The feather 9e in the embodiment of 6a and 6b shows an alternative embodiment to the spring 9 in the 1a to 1c , Here is one opposite the lower groove cheek 8th the groove 6 of the second panel 2 prominent projection 43 through a first section 44 of the two-part connection section. The first paragraph 44 is each about a joint 45 . 46 with the locking portion 47 and with the second section 48 connected to the connecting portion. The second section 48 of the connecting section is over another joint 49 with the holding section 50 the feather 9e connected. All joints 45 . 46 . 49 are at one to the bottom of the second panel 2 facing side surface of the spring 9e arranged. The first paragraph 44 is in a plane parallel to the plane E of the holding section 50 arranged. The locking section 47 as well as the second section 48 are opposite to the plane E of the holding section 50 inclined.
When connecting two adjacent panels 1 . 2 the projection meets the lower groove cheek 17 the groove 14 the opposite first panel 1 and will continue to lower the second panel 2 in the direction of the arrow P to the top 4 the panels 1 . 2 shifted. This shift will be the first section 44 in the plane E of the holding section 50 emotional. In this case, the locking portion 47 in the groove 14 of the adjacent first panel 1 relocated. Is the spring 9e already before connecting the panels 1 . 2 under bias the panels are 1 . 2 by the residual stress of the spring 9e additionally braced against each other.
The 7a and 7b show an embodiment in which the spring 9 as they are in 1 shown has been rotated 180 ° and instead in the right panel 2 now in the left panel 1 is arranged. The holding section 10 is now in the left groove 14 , The locking section 13 should be in the right groove 6 be introduced. The lead 16 points up and no longer down.
Regarding the further function is on the explanation of 1a to 1c Referenced, as reflected in 7 just changed the orientation and assignment of the spring.
The example of 7 is representative of the possibility to modify all other illustrated embodiments with respect to the mounting location of the spring. It is therefore possible in all variants also to turn the spring by 180 ° and to mount in the corresponding groove of the other panel.
The embodiment of the 8th is a modification of the embodiment of the 2 B , The spring can be converted in this variant in the illustrated metastable state. The stable state corresponds essentially to the illustration in FIG 2a with the difference that the curved connecting portion is designed as a bulge. This bump is pushed back over a tipping point so far that the connecting section 28 is issued in the other direction. For this purpose, a corresponding recess 51 in the upper groove cheek 7 and an upstanding pusher 52 on the lower groove cheek 17 intended.
Geometry of the spring is in all embodiments
shown and described rectangular. The invention concludes
but not to provide springs of other geometries, so that
the illustrated and described form representative of
other geometries is.
LIST OF REFERENCE NUMBERS
- holding section
- connecting portion
- locking section
- head Start
- head Start
- head Start
- locking bar
- dome channel
- dome channel
- contact area
- holding section
- connecting portion
- locking section
- holding section
- connecting portion
- locking section
- head Start
and connecting section
- free space
- holding section
- holding section
- spring element
- connecting portion
- locking section
- head Start
- head Start
- locking section
- holding section
- laying plane
- spring force
QUOTES INCLUDE IN THE DESCRIPTION
The documents listed by the applicant have been automated
generated and is solely for better information
recorded by the reader. The list is not part of the German
Patent or utility model application. The DPMA takes over
no liability for any errors or omissions.
Cited patent literature