DE102009034902B4 - Surface made of mechanically interconnectable panels - Google Patents

Surface made of mechanically interconnectable panels

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Publication number
DE102009034902B4
DE102009034902B4 DE102009034902.2A DE102009034902A DE102009034902B4 DE 102009034902 B4 DE102009034902 B4 DE 102009034902B4 DE 102009034902 A DE102009034902 A DE 102009034902A DE 102009034902 B4 DE102009034902 B4 DE 102009034902B4
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groove
spring
panels
panel
characterized
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DE102009034902.2A
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German (de)
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DE102009034902A1 (en
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Guido Schulte
Franz Eschlbeck
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Guido Schulte
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Publication of DE102009034902A1 publication Critical patent/DE102009034902A1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/01Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0138Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/05Separate connectors or inserts, e.g. pegs, pins, keys or strips
    • E04F2201/0523Separate tongues; Interlocking keys, e.g. joining mouldings of circular, square or rectangular shape

Abstract

Covering of mechanically interconnectable panels, having the following features: a) adjacent first and second panels (1, 2) have mutually complementary sides (5, 21) each have a groove (6, 14), b) the grooves (6 , 14) each have differently long upper and lower groove cheeks (7, 8, 17, 26), c) in one of the grooves (6, 14) is a relative to the panel (1, 2) at least partially relatively displaceable spring (9 , 9a, 9b, 9c, 9d), which is suitable for engaging in the corresponding groove (6, 14) of the adjacent panel (1, 2) when connecting the adjacent panels (1, 2), d) the spring (9 , 9a, 9b, 9c, 9d) has at least one projection (16, 33, 42, 43), which in the direction of the opposite to the shorter groove cheeks (8, 26) projecting portion of the longer groove cheeks (7, 17) of the other groove ( 6, 14), e) the projection (16, 33, 42, 43) is provided, when in contact with this region of the groove cheek (7, 17) transversely to the laying plane (V) of the panels (1, 2), said projection (16, 33, 42, 43) being operatively associated with a locking portion (13, 29, 32, 35, 41, 47) of said spring (9, 9a, 9b, 9c, 9d), which, due to the movement of the projection (16, 33, 42, 43), in the direction of the groove (6, 14) of the adjacent panel (1, 2) is displaceable.

Description

  • The invention relates to a covering of mechanically interconnectable panels.
  • Wall, ceiling and floor coverings, such as prefinished parquet, real wood floors or laminate flooring, consist of several rows of predominantly rectangular panels in their configuration. Conventionally, the panels have on a longitudinal side and on a head side continuous grooves and on the respective opposite longitudinal side or head side continuous springs, which are adapted to the grooves form-fitting manner. By connecting tongue and groove the panels are laid, the panels of the second adjacent rows are offset from one another.
  • It is known to form mechanical locking means on the grooves and springs, which engage with one another in a floor covering adjacent panels in latching engagement. As a result, a joint formation in the laid floor covering by expansion or shrinkage operations should be avoided. Adjacent to the tongue and groove of the panels are mating locking elements in the form of recesses, recesses or projections to hold bonded floor panels in the assembled position glueless. In general, the panels are rotated along their longitudinal sides into each other or clicked and then moved laterally, so that locking strips on the head sides engage. In order to facilitate this, light hammer blows can be applied from the opposite side of the head with the aid of an impact pad. There is a risk that damage to the floor panels may occur even during the most careful work.
  • 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 A2 , 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.
  • The DE 20 2009 004 530 U1 discloses a covering of mechanically interconnectable panels, the complementary sides each having a groove. In one of the grooves, a relative to the panel at least in parts relatively displaceable locking element is arranged, which has a projection pointing into the groove. The projection is intended to be rotated about a surface of a base portion of the locking member upon contact of the locking member with a portion of the adjacent panel. During rotation, an elastic hinge part connected to the projection and the base part is stretched by its elongation. As a result of the return movement that is set, a locking section of the locking element is displaced in the direction of the groove of the adjacent panel.
  • The DE 10 2007 043 308 A1 shows a covering of mechanically interconnectable panels having opposing grooves. In one of the grooves, a locking element is arranged. The locking element has at least one projection which points in the direction of the opposite groove. The projection is intended to be displaced upon contact of an outer end of the locking element with an underside of the groove in the laying plane of the floor panels.
  • From the DE 10 2006 037 614 B3 goes out a covering of mechanically interconnectable panels, which have opposite, identically designed grooves. In one of the grooves, a spring is arranged, which is displaced by a displacement in the longitudinal direction of the groove transversely to the laying plane of the panels by the spring runs on a arranged in the groove part surface.
  • The DE 20 2008 008 597 U1 discloses a covering of mechanically interconnectable panels having opposing grooves. In one of the grooves, a displaceable relative to the panel locking element is arranged, which is pivotally mounted on a projection on the panel. The locking element has a blocking body, which is intended to engage in the groove of the adjacent panel. The blocking body is operatively connected to an elastic pressing member, which elastically receives a pivoting movement of the blocking body about the projection, wherein the blocking body in the end position of the panel is suddenly elastically displaceable in the groove of the adjacent panel.
  • So that the displaceability of the spring is even possible, it must be kept with a certain amount of play and inserted into the correspondingly precisely aligned opposite groove of the complementary panel. This game is preferably as small as possible so that it does not come to a height offset in the area of the butt joint of two panels. Due to the principle, however, a particular game can not be avoided.
  • The invention is based on the object to show a covering of mechanically interconnectable panels, in particular a floor covering, wherein the height offset in the region of the butt joint is minimal.
  • This object is achieved in a covering with the features of claim 1.
  • The subclaims relate to advantageous developments of the invention.
  • The panels of the flooring according to the invention are intended and adapted to be mechanically connected to other similar panels. The connection is made via arranged on the complementary sides of the panels connecting elements in the form of tongue and groove joints. The adjacent panels each have a horizontal groove on their mutually complementary sides. In one of the grooves, a relative to the panel at least in parts relatively displaceable spring is arranged. The spring engages in connecting the adjacent panels in a groove of the adjacent panel, thus blocking the adjacent panels against vertical displacement against each other. The spring has a holding portion which is disposed in the groove of the spring-holding panel.
  • The spring has at least one projection. The projection jumps transversely to the laying plane, d. H. towards the top or bottom of the panels. A projection is given when the projecting portion of the spring is wider than the groove width measured in the region of the projection transversely to the laying plane in the locking position. The projection therefore projects in particular in relation to the holding section of the spring, which is matched to the groove width.
  • For the orientation of the grooves and thus also the springs arranged there, it is noted that the grooves preferably horizontal, d. H. in laying level, are oriented. But it is also possible, the grooves and thus the springs 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. Namely, the projection is intended to be in contact with this projecting portion of the groove cheek transverse to the laying plane, d. H. usually to be displaced 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 in the laying plane, d. H. shifted horizontally. 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.
  • As a groove in the context of the invention, not only the region is to be understood, which extends between the immediately opposite groove cheeks. It also includes the area that faces the long groove cheek, as this space is also occupied by the spring. The groove cheeks, in particular the longer groove cheeks, can vary in their distance considered over the groove depth. In particular, over the shorter groove cheeks protruding areas of the longer groove cheeks can be set off or offset from the shorter groove cheeks, so that increases the distance to the opposite groove cheek. Nevertheless, the remote areas also count to the groove.
  • The holding portion may be connected via a connecting portion with the locking portion. Depending on the installation position, the connecting section is preferably connected to the holding section via a hinge arranged on its edge pointing to the top or to the underside of the panel. The locking portion is coupled via a arranged at its diagonally opposite edge joint with the connecting portion. The position of this joint significantly determines the position of the most prominent point of the projection.
  • The spring is at least partially folded before joining two panels in a starting position, said holding portion, connecting portion and locking portion are pivoted about the joints against each other in the vertical direction from the plane of the holding portion out. In order to enable such a folding, mutually facing side surfaces of the holding section, connecting section and locking section are each bevelled in a complementary manner to the top and bottom of the panels.
  • When connecting two adjacent panels of the projection is displaced by the approach of the longer groove cheeks of the panels. Depending on Installation position, the projection can point up or down. Preferably, the projection is displaced by contact with a lower groove cheek of the groove receiving the locking portion of the first panel. The vertical movement results in a horizontal movement in which the projection on the lower groove cheek slides along the groove receiving the locking portion. This requires a pivoting of the connecting portion about both joints in the horizontal plane of the holding portion. Likewise, the locking portion is pivoted about the hinge of the projection in the horizontal plane of the holding portion. The spring is stretched out of its folded state as soon as the longer groove flanks have approximated as far as possible. This is the case when the height offset between adjacent panels is minimal. The locking portion is pressed by the stretching movement of the spring in the groove of the first panel. In order to facilitate the threading of the connecting portion in the groove, a groove facing end surface of the connecting portion may be chamfered or rounded.
  • After shifting the locking portion of the spring into the groove of the adjacent panel, the hinge between the locking portion and the connecting portion at the level of the lower groove cheek of the locking portion receiving groove. Retaining portion, connecting portion and locking portion are preferably aligned horizontally after connecting two adjacent panels. Since the lower groove cheek of the spring-retaining groove extends only over a width of the holding portion, the surfaces of connecting portion and locking portion facing the underside of the panel rest on a lower groove cheek of the groove receiving the locking portion of the spring.
  • In addition to the embodiment described above, it is of course also conceivable to connect individual sections of the spring in the middle. In this case, the edges of the connecting portion and the locking portion facing the underside of the panels form the projection. Likewise, the spring can have further sections in addition to the holding section, the connecting section and the locking section.
  • 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 comes into contact with a corresponding groove cheek and is displaced in the direction of the other groove flank.
  • The specific design of the spring also depends on the laying method, in particular, if a panel is not to be stored in a parallel, linear movement, but should be quasi angled by a pivoting movement. During the pivoting movement, the projecting areas of the longer groove flanks approach the length of the groove approached at a certain time to different degrees. Example: In a 45 ° position, the groove flanks at one end of the groove are almost at the end position, while the groove flanks at the other end are at a distance of several centimeters. In particular, in this case, it is expedient to provide either a plurality of spaced-apart springs, which do not hinder in their kinematics. But it is also possible to provide a spring which is divided by transverse to the groove slots in independently operable spring segments. The spring segments preferably have a common holding section. This configuration can be called comb-like. This embodiment proves to be particularly advantageous when the second panel, starting at one end of the groove, is lowered in the longitudinal direction of the groove, so that the spring sections engage one after the other in the groove of the first panel. Independently actuable spring segments can also be used for every other type of laying, i. E. H. even if the panels are not pivoted to each other, but are stored in a parallel movement.
  • The locking portion may have a profiling on its side facing the upper and / or lower groove cheek side surface. The connecting portion may as well as the locking portion have a profiling on one or both side surfaces. This profiling may, for example, be wavy, have individual points or a sawtooth profile.
  • The groove cheeks of the panels can have a profiling complementary to profiling. It is also possible to provide on one or both side surfaces of the locking portion locking elements which engage in insertion of the locking portion in the groove of the adjacent panel in corresponding recesses of the upper or lower groove cheek.
  • It is important that the locking portion bridges the gap adjoining the shorter groove cheek to the adjacent longer groove cheek of the other groove in order to minimize the height offset in the region of the butt joint of the panels. The locking portion must therefore partially protrude from the groove receiving it, that is over the shorter groove cheek this groove.
  • In principle, the spring can extend over the entire length of the groove. In addition, a plurality of springs can be provided in the longitudinal direction of the groove at a distance from each other. These may have independently operable locking portions. Thus, panels can also be offset from each other in the longitudinal direction of the groove. It is conceivable to connect the holding portions in the region of the groove with each other, wherein the compound can be used simultaneously as a spacer between the springs.
  • On one of the panels a locking strip is provided, which serves to secure the adjacent panels against tensile stress in a laying plane. The locking bar thus serves to couple the panels in the laying plane, while the springs are intended to prevent the panels from shifting relative to one another in the vertical direction. Since the locking strip which engages under the adjacent panel, is arranged at a relatively large distance from the top of the panels, it is additionally provided that the attacked by the locking bar panel is primarily supported on a support strip. This is arranged at a greater distance from the locking bar than the groove. In other words, the groove is between the support bar and the locking bar. The support bar has the function of reducing the distance of the support point from the top of the panels, which is particularly advantageous for very thin-walled and softer materials. Due to the proximity of the support bar to the top of the panels, vertical forces acting at a point in the vicinity of a butt joint, which act on the underreached panel, are introduced in a shorter way into the adjacent underarching panel than is possible via the lower located locking bar. Due to the support in the immediate vicinity of the force application point of the height offset between two panels in the load case is much lower.
  • Overall, the spring can consist of a uniform material. Correspondingly thin areas can serve as film hinges. The thicker areas then serve to accommodate the forces acting transversely to the laying plane.
  • 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.
  • The spring may be designed to be biased prior to connection. Due to the bias of the locking portion is pressed into the groove of the adjacent panel and additionally secured the connection of two panels.
  • Springs with restoring forces due to elasticity or because z. B. a spring steel has been used, are suitable to retract the spring after opening the connection back to the starting position or jump back.
  • The joints connecting portions of the spring are preferably made of the same material as the spring. Of course, it is also possible to choose a different material for this purpose, for example a kind of hotmelt. Hotmelt is to be understood as meaning hotmelt or hotmelt adhesives which are based, for example, on polymers, resins or waxes and still have a flexibility after cooling. The basic idea is based on a functional separation of elastic and non-elastic areas. While the hinged areas require deformable materials, deformation of the locking portion is undesirable. Therefore, a material of lower elasticity should be used for the locking portion than in the region of the joints or of the connecting portion.
  • A special feature are springs, which can assume two states. The spring can assume a stable position and a metastable position, from which the spring automatically returns to the stable state upon termination of the force. Also, a bistable spring can be provided, which is characterized in that two stable positions exist and every change from one position to another requires a force.
  • The spring with a metastable position is transferred from the stable position to a metastable position by the process of buckling, the restoring force being much less from the metastable position to the stable position than vice versa. This favorable force-displacement characteristic can also be utilized in the present invention. The bulge is equivalent to a projection on the spring, which is to be relocated. The projection is displaced until the spring jumps abruptly into the metastable position. This is the locking position. By a clicking sound, as it occurs in springs made of metal or at least in bumps made of metal, the locking position is also audible. But it also turns a slight jerk when the locking position is reached. The haptic information as well as an acoustic information of the so-called clicker effect are helpful feedback when laying and also when picking up the panels. As far as materials are concerned, the clicker effect primarily occurs with metallic materials. The principle is synonymous with other bulking materials, such. B. plastics feasible.
  • There is no restriction with regard to the material of the panels, as long as this can be brought into the necessary form, in particular by machining. These can be panels based on wood-based materials or plastics, as well as mineral materials and composite materials. The size of the panels also plays a minor role. The panels can also be large format, z. B. as device plates of 600 mm × 1500 mm.
  • The inventive concept is particularly applicable to all floor systems in which an upper covering is arranged on a support, such as real wood coverings, laminate, support with painted surfaces as top coat, linoleum, cork on support plates, etc. The cover layer may in particular consist of a decorative paper with overlay , which determines the appearance of the element plate. A floor covering may thus be a parquet floor, a finished parquet floor, a real wood floor or a laminate floor.
  • The floor covering may in particular also be a raised floor or a hollow floor, in which below the covering, d. H. below the panels is a cavity that is used for the wiring. Especially in these raised floors, it is advantageous if individual panels can be resumed, which is very feasible with the invention. Since the said springs can be provided not only on head sides but also on longitudinal sides of a panel, it is possible to use individual panels z. B. lift again by a siphon and then also store again.
  • The invention will be explained in more detail with reference to embodiments shown in the schematic drawings. Show it:
  • 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 to 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 the 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 towards the bottom 3 opposite the lower groove cheek 8th the spring 9a holding groove 6 protrudes. The connected to 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 conceivable in 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 pointing 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. Of 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. So it is also possible in all variants, to rotate 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.
  • The geometry of the spring is shown and described rectangular in all embodiments. However, the invention does not preclude providing springs of other geometries, so that the illustrated and described shape is representative of other geometries.
  • LIST OF REFERENCE NUMBERS
  • 1
    paneling
    2
    paneling
    3
    bottom
    4
    top
    5
    page
    6
    groove
    7
    upper groove cheek
    8th
    lower groove cheek
    9
    feather
    9a
    feather
    9b
    feather
    9c
    feather
    9d
    feather
    9e
    feather
    10
    holding section
    11
    connecting portion
    12
    joint
    13
    locking section
    14
    groove
    15
    joint
    16
    head Start
    16a
    head Start
    16b
    head Start
    17
    lower groove cheek
    18
    locking bar
    19
    dome channel
    20
    Kuppelwulst
    21
    page
    22
    dome channel
    23
    Kuppelwulst
    24
    contact area
    25
    Auflagerleiste
    26
    cheek
    27
    holding section
    28
    connecting portion
    29
    locking section
    30
    holding section
    31
    connecting portion
    32
    locking section
    33
    head Start
    34
    recess
    35
    Locking and connecting section
    36
    free space
    37
    holding section
    38
    holding section
    39
    spring element
    40
    connecting portion
    41
    locking section
    42
    head Start
    43
    head Start
    44
    first section
    45
    joint
    46
    joint
    47
    locking section
    48
    second part
    49
    joint
    50
    holding section
    51
    recess
    52
    handle
    e
    level
    V
    laying plane
    P
    arrow
    H
    height
    F
    spring force

Claims (18)

  1. Covering of mechanically connectable panels, having the following features: a) adjacent first and second panels ( 1 . 2 ) have at their mutually complementary sides ( 5 . 21 ) each have a groove ( 6 . 14 ), b) the grooves ( 6 . 14 ) each have differently long upper and lower groove cheeks ( 7 . 8th ; 17 . 26 ), c) in one of the grooves ( 6 . 14 ) is one opposite the panel ( 1 . 2 ) at least in part relatively displaceable spring ( 9 . 9a . 9b . 9c . 9d ), which is suitable when connecting the adjacent panels ( 1 . 2 ) into the corresponding groove ( 6 . 14 ) of the adjacent panel ( 1 . 2 ) d) the spring ( 9 . 9a . 9b . 9c . 9d ) has at least one projection ( 16 . 33 . 42 . 43 ), which in the direction of the opposite to the shorter groove cheeks ( 8th . 26 ) projecting portion of the longer groove cheeks ( 7 . 17 ) of the other groove ( 6 . 14 ), e) the projection ( 16 . 33 . 42 . 43 ) is intended, upon contact with this area of the groove cheek ( 7 . 17 ) transverse to the laying plane (V) of the panels ( 1 . 2 ), whereby the projection ( 16 . 33 . 42 . 43 ) in operative connection with a locking section ( 13 . 29 . 32 . 35 . 41 . 47 ) the feather ( 9 . 9a . 9b . 9c . 9d ), which, due to the movement of the projection ( 16 . 33 . 42 . 43 ), in the direction of the groove ( 6 . 14 ) of the adjacent panel ( 1 . 2 ) is displaceable.
  2. Covering according to claim 1, characterized in that the projection ( 16 . 33 . 42 . 43 ) at a relative to the locking portion ( 13 . 29 ) and a holding section ( 10 . 27 ) the feather ( 9 . 9a ) movable connection section ( 11 . 28 ) is trained.
  3. Covering according to claim 1 or 2, characterized in that the locking portion ( 13 . 29 ) in the locking position, a gap between the short groove edge ( 26 ) the groove receiving it ( 6 . 14 ) and the adjacent, longer groove flank ( 7 . 17 ) of the other groove ( 6 . 14 ) bridged.
  4. Covering according to claim 2 or 3, characterized in that the connecting portion ( 11 . 28 ) hinged to the locking portion ( 13 . 29 ) and / or the holding section ( 10 . 27 ) connected is.
  5. Covering according to claim 4, characterized in that joints ( 12 . 15 . 45 . 46 . 49 ) between the connecting section ( 11 ) and the locking portion ( 13 . 47 ) and / or between the connecting section ( 11 ) and the holding section ( 10 . 50 ) one parallel to the groove ( 6 . 14 ) have extending pivot axis.
  6. Covering according to claim 4 or 5, characterized in that the joints ( 12 . 15 . 45 . 45 . 49 ) Are film joints.
  7. Covering according to one of claims 4 to 6, characterized in that the joints ( 12 . 15 ) between mutually facing edges of holding portion ( 10 ), Connecting section ( 11 ) and locking section ( 13 ) are arranged.
  8. Covering according to one of claims 4 to 7, characterized in that the joints ( 12 . 15 . 45 . 46 . 49 ) of the same material as the remaining parts of the spring ( 9 . 9e ) consist.
  9. Covering according to one of claims 4 to 7, characterized in that the joints ( 12 . 15 . 45 . 46 . 49 ) of a different material than the other parts of the spring ( 9 . 9e ) consist.
  10. Covering according to claim 9, characterized in that the joints consist of hotmelt.
  11. Covering according to one of claims 1 to 9, characterized in that the spring ( 9 . 9a . 9b . 9c . 9d . 9e ) consists of an elastic material.
  12. Covering according to one of claims 1 to 11, characterized in that the locking portion ( 13 . 29 . 32 . 35 . 41 . 47 ) consists of a material of lower elasticity than other parts of the spring ( 9 . 9a . 9b . 9c . 9d . 9e ).
  13. Covering according to one of claims 1 to 12, characterized in that the spring ( 9 . 9a . 9b . 9c . 9d . 9e ) several at a distance in the longitudinal direction of the groove ( 6 . 14 ) mutually arranged, independently operable locking portions ( 13 . 29 . 32 . 35 . 41 . 47 ) owns.
  14. Covering according to claim 13, characterized in that the holding sections ( 10 . 27 . 30 . 37 . 38 . 50 ) of several springs ( 9 . 9a . 9b . 9c . 9d . 9e ) in the region of the groove ( 6 . 14 ) are connected.
  15. Covering according to one of claims 1 to 14, characterized in that the locking portion ( 13 . 29 . 32 . 35 . 41 . 47 ) the feather ( 9 . 9a . 9b . 9c . 9d . 9e ) at its top to the panel ( 1 . 2 ) facing side surface and / or at its bottom of the panel ( 1 . 2 ) facing side surface has a profiling.
  16. Covering according to one of claims 1 to 15, characterized in that the groove ( 6 . 14 ) for receiving the locking portion ( 13 . 29 . 32 . 35 . 41 . 47 ) the feather ( 9 . 9a . 9b . 9c . 9d . 9e ) on its upper and / or lower groove cheeks ( 7 . 8th ; 17 . 26 ) has a profiling.
  17. Covering according to claim 16, characterized in that the profiling of the locking portion ( 13 . 29 . 32 . 35 . 41 . 47 ) in the profiling of the groove ( 6 . 14 ) intervenes.
  18. Covering according to one of claims 1 to 17, characterized in that parts of the spring can assume two states, one state is a stable state and the other is a stable or metastable state.
DE102009034902.2A 2009-07-27 2009-07-27 Surface made of mechanically interconnectable panels Active DE102009034902B4 (en)

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Application Number Priority Date Filing Date Title
DE102009034902.2A DE102009034902B4 (en) 2009-07-27 2009-07-27 Surface made of mechanically interconnectable panels

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE102009034902.2A DE102009034902B4 (en) 2009-07-27 2009-07-27 Surface made of mechanically interconnectable panels
PCT/DE2010/000803 WO2011012104A2 (en) 2009-07-27 2010-07-10 Covering comprising panels that can be connected to each other mechanically
EP10744854.0A EP2459818B1 (en) 2009-07-27 2010-07-10 Covering comprising panels that can be connected to each other mechanically
BR112012001893A BR112012001893B1 (en) 2009-07-27 2010-07-10 cladding of mechanically joined panels
PL10744854T PL2459818T3 (en) 2009-07-27 2010-07-10 Covering comprising panels that can be connected to each other mechanically
CN201080028698.8A CN102482886B (en) 2009-07-27 2010-07-10 Covering comprising panels that can be connected to each other mechanically
US13/387,562 US20120124932A1 (en) 2009-07-27 2010-07-10 Covering made from mechanically interconnectable panels

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DE102009034902A1 DE102009034902A1 (en) 2011-02-17
DE102009034902B4 true DE102009034902B4 (en) 2015-10-01

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US (1) US20120124932A1 (en)
EP (1) EP2459818B1 (en)
CN (1) CN102482886B (en)
BR (1) BR112012001893B1 (en)
DE (1) DE102009034902B4 (en)
PL (1) PL2459818T3 (en)
WO (1) WO2011012104A2 (en)

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PL2459818T3 (en) 2018-10-31
CN102482886A (en) 2012-05-30
EP2459818A2 (en) 2012-06-06
BR112012001893B1 (en) 2019-08-27
WO2011012104A2 (en) 2011-02-03
DE102009034902A1 (en) 2011-02-17
US20120124932A1 (en) 2012-05-24
WO2011012104A3 (en) 2011-04-21
EP2459818B1 (en) 2018-06-20
CN102482886B (en) 2014-07-30
BR112012001893A2 (en) 2016-03-15

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