JP3136542U - Panel material and flooring structure using it - Google Patents

Abstract

A floor covering structure that can be easily assembled and disassembled is provided.
Four end faces forming four sides of a panel surface form a first and second pair to form a complementary fitting joint that can be connected to each other, one of which is a bayonet joint and the other is a hook. A flooring panel material in which a phased joint with a hook is formed, and the same kind of panel material can be connected to each other with a phased joint with a hook, and a thickness direction locking element is incorporated in the phased joint with a hook. The phased joints with hooks (6a, 7a) are arranged so that when adjacent panel members are connected to each other in the thickness direction, one panel member is rotated relative to the other in a movable direction perpendicular to the panel surface. It has a joint shape that can be released from the locked state by the locking element by movement. In order to achieve relative rotation, one of the adjacent panel members can be rotated from the locked state toward the release position around the rotation axis extending along the joint end surface portion by the mutual coupling with the hooks, In the release position, the panel surfaces of adjacent panel materials form an angle of less than 180 ° with each other.
[Selection] Figure 1

Description

  The present invention relates to a panel material having a rectangular surface plate having a panel surface and four end surfaces forming four sides around the panel surface, and in particular, the first and second pairs are formed by two end surfaces facing each other. The first pair and the second pair of end faces facing each other have complementary fitting joints so that a plurality of the same kind of panel materials can be connected to each other at the end faces of the four sides. And the second pair of mating joints form a bayonet joint and the other pair of mating joints form a hooked phased joint. The materials can be coupled by relative movement in a movable direction within a plane orthogonal to the panel surface, and a plate-thickness direction locking element as a separate part is attached to at least one of the hooked phase-separated joints. At least partially hooked Projecting beyond the joint boundary surface of the notch joint, the locking element is automatically retracted from the joint interface surface by a spring action by the coupling operation between the hooked phase joints of two adjacent panel members, and the joint is connected And a panel material that automatically protrudes beyond the joint boundary surface by a spring action after connection and that can prevent relative displacement in the plate thickness direction between the hooked joints.

  The present invention further relates to a floor covering structure assembled by using a plurality of such panel materials.

  Panel materials of the type mentioned at the beginning are known from US Pat. The panel material recognized by those skilled in the art based on these known documents is one in which joints are formed between the edge edges of the panel material in each row and are interconnected when laid in a number of rows. Usually, in flooring construction, when laying these panel materials, it is possible to stretch up with a panel arrangement that is alternately shifted so that the joints between the small openings in a certain panel row are not aligned with the joints between the small openings in the adjacent panel row. It is preferred. In this case, in a new row of panel coverings, the new panel material is connected to the panel material of the front row by inserting the side surfaces on the side (side) side. Here, in the insertion splicing, the ridge (actual) joint element on the side end face of the new panel material in the state where the new panel material is raised obliquely relative to the panel surface of the preceding panel row is the front matrix. The joint operation is performed to hit the groove-shaped joint element on the side end surface of the panel material, and then to insert and fit the actual joint with the panel material of the previous matrix while tilting the new panel material toward the horizontal state, Therefore, fixing a new panel material involves an angular motion operation in a movable direction in a plane orthogonal to the panel surface, and the new panel material is joined flush with the panel material in the previous matrix by this angular motion operation. Will be.

  If there is a panel material that has already been laid in advance in the row in which the new panel material is to be laid, the new panel material will be It is also combined with the edge edge surface of the preceding laying panel material in the same row. For this purpose, a pair of small edge end surfaces of each panel material is also processed into a complementary fitting joint shape for connection between the small edges of the panel members in the same row, thereby complementary hooks to the pair of small edge end surfaces. A phased joint is formed. Each joint element of the phased joint with hook is formed by moving the adjacent panel material relative to the already laid panel material in the movable direction in a plane perpendicular to the panel surface, and overlapping the joint elements with each other. They can be connected by mutual engagement. The relative motion in the movable direction in the plane is a rotation around the axis along the side end surface, which is called a cutter scissor motion or a folding motion.

  Further, the panel materials known in these patent documents include a spring-elastic type plate thickness direction locking element that automatically functions as at least one phased joint element with a hook that constitutes a joint on the end face on the small edge side in particular. It is installed to prevent the occurrence of unevenness between adjacent panel materials, but this locking element cannot be moved from the locked position at all after the panel material has been laid, or a special tool to move it. Therefore, if a floor panel that has already been laid is to be partially disassembled for some reason, such as maintenance inspection of underfloor piping, etc., it may be separated so that it can be reused without damaging the panel material. There is a problem that it is difficult. That is, according to Patent Document 1, after exposing the side end face of the laid panel material of each row, the locking element is pulled out horizontally from the side of the end face of the small edge, and is engaged with each other by the phased joint with hook. Separation is achieved only by moving one of the panel members away from the panel material in a direction perpendicular to the panel surface with a small joint. Patent Document 2 teaches the use of a special tool for pulling out the locking element from the locking position in order to enable the panel member to move away in a direction perpendicular to the panel surface. This special tool is a kind of needle-like tool that is pushed in from a side end face exposed in advance in a gap between the end faces of the fore ends where the locking elements are accommodated. In order to handle a thin needle-shaped special tool having different shapes on the upper and lower surfaces, a skillful operation of appropriately rotating the tip of the tool within the gap in which the locking element is accommodated is indispensable. The method of separating the remaining panel material is to relatively move the panel materials connected to each other by the phased joint with hooks in parallel with the longitudinal direction of the panel surface, that is, the jointed end surface. However, this method generally has a high static friction prevailing between the joint elements of the phased joint with hooks with the existing adjacent panel material. It cannot be done and is actually unsuitable.

International Publication No. 03/016654 Pamphlet International Publication No. 2006/043893 Pamphlet International Publication No. 2006/104436 Pamphlet

  The problem to be solved by the present invention is to provide a panel material that can be easily assembled and disassembled by solving the above-mentioned problems of the prior art in the panel material of the type described at the beginning. An object of the present invention is to provide a flooring structure assembled using a panel material so that the disassembling work can be simplified.

  In order to solve the problem, the panel material according to the present invention is the panel material of the type described at the beginning, wherein the plate thickness direction locking element is made of a plastic material, and the phased joint with hook is adjacent to 2 When the two panel members are in a connected state in which the relative displacement in the plate thickness direction is locked by the mutual coupling with the hooks, the one of the two panel members is rotated relative to the other in the movable direction. A joint shape that can be released from the locked state by the locking element, and at least one of the two adjacent panel members is extended to the joint end surface portion by the phased joint with hooks to achieve the relative rotation. It is possible to turn from the locked state toward the release position around the axis of movement, and in this release position, the panel surfaces of two adjacent panel members are less than 180 ° from each other. And it has a feature in that an angle. In the present invention, the term “joint joint” includes a variety of joints and actual joints, such as a common claw, a phase crush, a main claw, etc. A joint formed with hooks that engage with each other is called a phased joint with hooks. Further, in the present invention, the insertion joint generally means an actual joint, but does not ask for the presence or absence of the concavo-convex shape constituting the hook.

  In the panel according to the present invention, in order to release the locking of the plate thickness direction locking element for the purpose of disassembling the flooring structure, the locking element is removed from the joint connecting portion, and a special tool is used for that purpose. Is also unnecessary. According to the present invention, the phased joint with hook is formed so that the panel material of any one panel row can be separated as long as the panel row is disconnected from the adjacent row panel row. That is, when the panel material of a certain panel row is separated from the adjacent panel material in the row, the panel row is first released from the connection with the adjacent panel row. Panel material in a panel row that has been uncoupled from the adjacent panel row is separated from the panel material that is joined to the end of the row, in order, keeping the preceding panel material in front from the top and keeping it stationary. It can be separated by lifting the end of the panel material to be moved in a direction perpendicular to the panel surface and pivoting it, and disassembling the panel material by repeating the order toward the head of the column. be able to.

  When laying panel materials in flooring work, the new row of panel materials are joined to the previous row of panel materials simultaneously with the new row of existing panel materials. Operations can affect each other. For example, it is assumed that the end surfaces forming the first pair are the side edges, the end surfaces forming the second pair are the edge edges, and the joints between the laying panel rows are formed by the joints between the side edges. Then, the preceding panel in the same row as the new panel material is simultaneously operated by inserting the actual joint between the near side end surface of the new panel material and the near side end surface of the front panel material with the cutter 鋏 motion (folding motion). It is advantageous if mutual alignment between the edge ends of the material is performed. In this case, the mutual alignment between the end surfaces of the front ends is performed in order to align the phased joints with hooks between the second end surfaces of the front ends of the second pair in the desired proper fitting position during the folding motion. It is necessary to generate a sliding motion in the longitudinal direction of the side end face inside the actual joint being inserted between the side end face and the side end face. For this purpose, the joint element of the phased joint with hook of panel material according to the present invention has a guide function that automatically causes the sliding motion during the folding motion due to the shape of the concave and convex fitting, when laying It is preferable to configure so that mutual alignment can be achieved at the same time by applying the folding motion. Thereby, the mutual alignment of the joints between the edge edges of the same row can be automatically achieved by the folding operation of the new panel material.

  The panel material according to the present invention can be composed of planks, parquets, or laminates of various kinds of wood, so that it can be selected from either solid wood or core material. The wood that can be used as the core material is preferably a natural wood core material such as a lumbar core plywood made of stick-shaped pieces, a multi-polymer board made of a wood layer, or other plywood. Of course, a fibrous material can also be used as the core material. As typical examples, medium density fiberboard (MDF), high density fiberboard (HDF) obtained by first dividing raw wood into fiber pieces, then mixing with a binder and forming into a wood fiber reinforced plywood, Or an oriented strand board (OSB) etc. can be mentioned. Materials other than these are also suitable for the core material of the panel material according to the present invention. For example, solid plastics and porous plastics can also be suitably employed as vibration-proof or sound-insulating core materials.

  The panel material provided with the core material is a laminated panel, and the surface layer generally provides a decorative panel surface.

  The present invention can be applied particularly advantageously to a panel material made of solid natural wood such as solid wood or a panel material provided with a core material made of such natural solid wood. Since fitting joints processed on the end face of the panel material, especially phased joints with hooks, will be formed of natural solid wood, such joints are mutually connected by the surface characteristics of the joint interface in the fitted state. It exhibits high adhesion and can enjoy the unique property that the joint elements are difficult to move apart. In the panel material having the fitting joint formed of natural solid wood on the end face, the last panel material separation method in the publicly-known technique described above is not suitable for use, but the hook in the panel material according to the present invention is not suitable. The phased joint is in a locked connection state when one of two panel members that are already in a locked connection state is rotated relative to the other in the direction of rotation in a plane perpendicular to the panel surface when the existing panel is disassembled. Since the joint shape is open, even if the panel material is a solid wood panel material or solid wood core material that shows high adhesion in the fitted state, the present invention can be applied. It is possible to easily disassemble the existing panel.

  According to a preferred embodiment of the present invention, the first pair of mating joints are formed by an undercut concave joint element formed on one end face and a complementary tongue joint element formed on the other end face. The undercut concave joint element and the tongue joint element can be connected to each other by insertion between adjacent panel members of the same type. This type of undercut concave joint element and tongue joint element is not limited to the above-mentioned known technology, and is a highly reliable joint structure widely used in flooring panels as a so-called actual joint. Therefore, it can be suitably employed for the panel material according to the present invention. Therefore, in the present invention, a well-known joint structure whose reliability has already been established is employed for the fitting joint on the first pair of end faces, while the fitting joint on the second pair of end faces is provided with a phased portion with hooks. It is preferable to employ a joint.

  In addition, for the sake of completeness, the mutual connection of the panel materials by the hook joints on the second pair of end faces is in a state where these panel materials are placed on the same common ground. Is also possible by a relative slide movement operation. In this case, both panel materials are grounded so that each joint boundary surface of the phased joint with hook of the other panel material to be connected to the phased joint with hook of one panel material on the ground surface is aligned. They are arranged in a staggered pattern on the top, and are arranged so that the mutually complementary joint elements of the phased joints with hooks of both panel members face each other in the front-rear direction. Next, the other panel material can be fitted to the end joints with the hooks of the two panel materials by moving the other panel material relative to each other in the longitudinal direction of the joint boundary surface on the base surface. it can. As for this laying method, for example, FIG. 44 of German Patent Application No. 102006011887 can be cited as a reference example. In the example shown there, the joint elements formed on the end face of one panel member 30b are aligned with the joint element 32 on the end face of the other panel member 30a in a straight line as indicated by an arrow 34. ing. In this case, depending on the situation, when the relative sliding movement in the longitudinal direction of the joint boundary surface aligned in a straight line is started, the elastic plate thickness direction locking element 33a projecting to the joint boundary surface is slightly pushed in to cause no interference due to the projection. Of course, it is necessary to do so.

  According to still another preferred embodiment of the present invention, at least one of the first pair and the second pair forms a hooked phased joint having a shape corresponding to each other in a complementary manner, and each hooked phase is formed. Each notch joint is provided with at least one undercut surface, and the undercut surfaces of the phased joints with hooks are separated along the rotation direction of the relative rotation in the adjacent two panel members in the connected lock state. They are in contact with each other on the curved surface and can be relatively displaced along the separated curved surface between the locked state and the release position.

  By placing the undercut surface on such a separation phase, there is no load due to the deformation of the panel material at the time of relative rotation of the panel material when releasing the coupling by the hooked phased joint, or Since it appears very little even when it appears, disassembling the existing panel is a light work, and the panel material can be easily removed.

  According to still another preferred embodiment of the present invention, in order to improve the handling of the panel material in the flooring work or the panel disassembly work, the adjacent panel materials are connected to each other by a phased joint with a hook. Positioning is possible on the base member. In this case, relative panel members positioned on the base member and stationary are guided relative to each other by the mutual coupling with the hooks. It is preferable that the plate thickness direction locking element is fixed to a joint element of a hook-attached phased joint formed on an end face of the stationary panel member when connecting.

  When the plate thickness direction locking element is placed on the panel material that is already stationary on the base when laying the panel material, the joint element of the phased joint with hook is in a mode that the construction operator can easily check It has been found that the lock can be locked. As a further advantage, the thickness-direction locking elements are better visible to the construction worker as long as they are arranged on the stationary panel material. As a result, there is an advantage that the operating state of the locking element in the thickness direction can be surely grasped and recognized by the construction operator as the construction operator joins the joint elements of the phased joint with hook.

  For the purpose of further improving the handleability of the panel material, the plate thickness direction locking element is preferably made of a material that itself can be elastically deformed by spring.

  A panel material according to still another preferred embodiment of the present invention includes a core material made of high density fiberboard (HDF) or medium density fiberboard (MDF). These cores are generally produced by mixing crushed wood chips with a binder and compression molding. Such a core material can be machined very well, so that it is suitable for fitting joint processing to the end face of the panel material according to the present invention, and is sufficient to attach a separate locking element in the plate thickness direction. Mechanical strength. However, as already described, the panel material according to the present invention is not limited to those provided with the core material made of fiberboard.

  In the simplest structure, the fitting joint of the panel material according to the present invention is formed integrally with the core material. This can be achieved, for example, by cutting the end face of the panel material.

  The present invention also provides a floor covering structure in which a plurality of panel materials having compatibility according to the various modes described above are connected to each other by fitting joints at their respective end faces.

  In the flooring structure according to a preferred embodiment of the present invention, the individual panel members are relatively moved by fitting joints at the respective end faces of their four sides with little wear for the purpose of simplifying the decomposition of the flooring structure. The panel members that are interconnected so that the connection can be released by a turning operation and the connection is released can be returned to the connected state again. The panel material used for this flooring structure is the panel material according to the above-described embodiments, and this panel material can be released from the connected state by a turning operation with slight wear.

  It should be noted that the spring-elastic type plate thickness direction locking element known in Patent Documents 2 and 3 that operates automatically is fundamentally related to the function of preventing separation of the panel materials in the plate thickness direction perpendicular to the panel surface. It can be used as a plate thickness direction locking element in the present invention.

  Several preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 shows a state in which new panel members are connected to the two panel rows R1 and R2 of the floor tension structure formed of the panel material according to the present invention. The first panel row R1 that has already been laid includes panel members 1, 2, and 3, following the panel material 4 of the second panel row R2 that is laid adjacent to the first panel row R1. The next panel material 5 in the second row is now being connected, and all of these panel materials have the same specifications.

  The form of the panel material according to the present invention will be described by using the panel material 2. The panel material 2 is a rectangular plate, and is used as four end surfaces 2a, 2b, 2c, and 2d that form the four sides of the rectangular plate. Panel surface N. In the panel member 2 according to the illustrated embodiment, these four end faces extend in a direction perpendicular to the side end faces 2a and 2b forming a first pair facing each other and face each other. The side edges 2a and 2b are parallel to each other, and the edge edges 2c and 2d are mutually opposite to the rectangular panel surface. A pair of opposing parallel short sides is formed. The side end faces 2a, 2b forming the first pair are processed into complementary fitting joints, and the edge side end faces 2c, 2d forming the second pair are also processed into complementary fitting joints, Thereby, a plurality of the same kind of panel materials can be connected to each other at each end face of the four sides. In the illustrated embodiment, the mating joints of the first pair of side end surfaces 2a, 2b forming the long side form complementary joint elements of the bayonet joint as shown in FIG. The mating joints of the second pair of the fore end surfaces 2c and 2d are formed as complementary joint elements of a hooked phased joint as shown in FIG. For the other panel materials 1 and 3 to 5, the joint structure of each end face is exactly the same as that of the panel material 2. Accordingly, when laying in the panel arrangement as shown in FIG. 1, for example, the side end face 2b of the panel member 2 in the panel row R1 is between the corresponding side end surfaces of the panel members 4 and 5 in the adjacent panel row R2. In the same panel row R1, the small edge side end surfaces 2c and 2d are complementary to the corresponding small edge side end surfaces of the adjacent panel members 1 and 3 in the same panel row. They are connected by hooked phase cut joint elements. In this way, as shown in FIG. 1, a panel material that forms the next new row is added to the laid panel row, and a new panel row is formed by adding the individual panel materials. Flooring can be done by progressively advancing.

  In FIG. 1, the panel material 5 is a new panel material that is going to be connected to the panel materials 2 and 3 in the preceding panel row R <b> 1 just by insertion. At the start of the insertion, the panel surface of the new panel 5 is inclined with respect to the panel surfaces of the panel members 2 and 3 in the preceding panel row R1. The near side end surface 5a of the new panel 5 is inserted into the near side end surfaces 2b and 3b of the panel members 2 and 3 in the front matrix R1 while shifting the joints. When a cutter 鋏 operation (folding operation) is performed in which the inclination of the new panel material 5 is tilted toward the horizontal state using the hinge axis between the side end surfaces in the inserted state as a rotation axis, the side end surface 5a. Then, the fitting of the plug-in joint between the panel material 2 of the front matrix R1 and the side end surfaces 2b and 3b of the front 3 proceeds, and the panel surface N of the new panel material is aligned with the panel surface of the front matrix. Then, the connection by the bayonet joint between the side end surfaces is completed, and the new panel material 5 is restrained with respect to the relative separation movement in the direction perpendicular to the panel surface with respect to the existing panel materials 2 and 3.

  The preceding panel member 4 already laid on the same panel row R2 as the edge-side end surface 5c of the new panel 5 during the fitting operation of the joint between the buckle-shaped end surfaces by the cutter scissors movement of the new panel member 5 as described above. This is connected to the small end side end surface 4d by a hooked phased joint. That is, as the fitting of the insertion joint between the panel material 2 of the front matrix R1 and the side edge surfaces 2b and 3b of the third matrix R1 progresses on the side edge surface 5a of the new panel material 5 by the cutter scissors operation, the new Between the edge side end surface 5c of the front panel 5 and the edge side end surface 4d of the preceding panel member 4, a movement that just closes the edge of the cutter occurs, and this movement causes the edge edge surface 5c of the new panel member 5 to A phased joint with a hook between the front panel member 4 and the end surface 4d on the small edge side fits up and down, and this fitting proceeds from the side closer to the pivot axis to the side farther away, and a new panel member When the panel surface N of 5 is aligned with the panel surface of the preceding panel member 4, the connection by the hooked phase-separated joint is completed over the entire length in the longitudinal direction of the both end surfaces 5c and 4d.

  FIG. 2 shows the joint shapes of the fitting joints constituting the insertion joints in the first pair of end faces of the panel material according to the embodiment of the present invention for five types a to e in a cross-sectional view of the main part. ing. These bayonet joint shapes are conventionally known.

  Normally, in the construction of flooring with panel material that has been subjected to uneven fitting joint processing along the longitudinal direction of the side end face, the undercut concave shape provided on the side end face of the panel material laid in advance A complementary tongue (real) joint element B provided on the side end face of a new panel material to be subsequently laid is inserted into the joint element A and succeeded. At the time of this insertion, generally, a new panel material is arranged in a state where the panel surface N is inclined with respect to the panel material of the previous matrix as shown in FIG. 1, and the inclination is gradually lowered in the horizontal direction. The shape joint element B is inserted and joined to the undercut concave joint element of the panel material of the first matrix. In the shape of the insertion joint illustrated in FIG. 2, at least one additional undercut surface A1 is provided on the upper surface of the recess at the lower portion of the undercut concave joint element A, and the corresponding shape of the tongue-shaped joint element B is provided. At least one complementary undercut surface B1 is also provided on the lower surface of the convex portion, and the panel material is soaked when the panel materials are in a proper fitted and connected state due to the engagement between these additional undercut surfaces. It prevents mutual separation in parallel to the panel surface in the direction orthogonal to the side end surface. Of course, it goes without saying that the fitting of the concave joint element A and the tongue joint element B opposes the separation movement of the panels in the direction perpendicular to the panel surfaces.

  FIG. 3 and FIG. 4 show different embodiments of the hooked phased joint as the fitting joint on the second pair of end faces of the panel material according to the present invention. Also in this case, the panel material may be a plywood having a core material made of solid wood or fiberboard, or a solid solid wood panel without a core material. Complementary joint elements of hooked phased joints are formed, for example, by milling on the edge side end face of the panel material.

  3 and 4, complementary joint elements 6a and 7a that form a hooked phased joint between the front-side end faces of the preceding panel member 6 and the succeeding panel member 7 that are connected to each other in the same panel row. It is shown in the form of a principal part cross-sectional view in a cross section orthogonal to the longitudinal direction of the fore edge end surface. The joint element 6a provided on the edge side end face of the panel material 6 and the complementary joint element 7a provided on the opposite edge side end face of the panel material 7 are respectively the panel materials 1 to 5 shown in FIG. The above-mentioned cutter is provided on the opposite edge side end faces (that is, the edge faces 2c and 2d of the panel material 2 or the edge edge side face 4d of the panel material 4 and the edge edge side face 5c of the panel material 5). By superimposing the succeeding panel members 7 to be newly joined by the scissors motion (folding motion), they are fitted to each other between the opposite end surfaces of the panel materials.

  3 and FIG. 4 is not the only joint structure that can be employed in the panel material of the present invention and the floor tension structure using the same, as will be apparent from the following description. Various deformation structures that can be fitted by the cutter scissors movement can also be adopted.

  In the preferred joint fitting operation common to the embodiments shown in FIGS. 3 and 4, the joint of the new panel member 7 located on the upper side as indicated by the wavy line at the time of operation at the fitting portion between the end surfaces on the small edge side Cutter scissor action in which the element 7a tilts the new panel material 7 inclined as described above with reference to FIG. 1 toward the horizontal state around the hinge axis along the side end surface thereof ( As the folding operation proceeds, the joint elements 6a of the existing preceding panel member 6 located on the lower side indicated by the solid line in FIG. In the following description, the joint element 7a adjacent to the panel N is referred to as an upper joint element, and the complementary joint element 6a is referred to as a lower joint element.

  In each of FIGS. 3 and 4A, the new panel member 7 and its upper joint element 7a that are still in the inclined arrangement state before being moved by the cutter rod operation are shown by broken lines, whereas the cutter plate The panel member 7 and the upper joint element 7a after the operation are performed are indicated by a solid line together with the lower joint element 6a of the existing preceding panel member 6 to which it is engaged and locked. The plate thickness direction locking element 8 attached to the lower joint element 6a inside the joint fitting portion automatically protrudes beyond the engagement boundary surface M at the engagement lock position of the phased joint with hook. It is locked to the end face of the upper joint element 7a and prevents separation between the panel members 6 and 7 in the direction perpendicular to the panel surface.

  The lower joint element 6a on the lower side of the panel material 6 prevents the two panel materials 6 and 7 connected to each other between the end faces on the small edge side by the hooked joints from moving apart in parallel to the panel surface in a direction perpendicular to the end face. Are provided with undercut surfaces 6b and 6e. When the phased joint with hook is in the engagement lock position, the undercut surfaces 6b and 6e are provided corresponding to the upper joint elements 7a of the panel 7. The undercut surfaces 7b and 7e are engaged.

  3 and 4, in order to separate the panel material 7 from the connected state shown in FIG. 3A, a tail end side of the panel material 7, that is, an upper joint element 7 a to be separated is provided. The end portion on the side opposite to the end surface on the side of the fore edge (not shown in the figure, but provided with a lower joint element), the end joint with hook to be separated Rotating upward in a movable direction in a plane (movable plane) perpendicular to the edge side end surface and the panel surface N around a rotation axis extending in the longitudinal direction of the joining end surface portion of the connecting portion by Thus, as shown in each (b) figure, the center axis is positioned on the joint surface to be separated and the panel member 7 is raised to the release position where the panel surface is inclined. This turning operation is caused by manual operation around a turning axis extending in parallel with the joint surface between the lower joint element 6a and the upper joint element 7a in a connected state. In this case, the lower joint element The undercut surfaces 6b and 6e of the element 6a and the undercut surfaces 7b and 7e of the lower joint element 7a are on concentric arc surfaces having the rotation axis as a common axis, respectively, and these arc surfaces are separated into curved surfaces V1. , V2. The separation curved surface is an ideal arc concave surface in the illustrated embodiment, but as long as it does not extremely hinder the function of preventing the separation movement of both panel members in the joint fitting state and the rotation operation to the release position, A surface shape other than the arc concave surface may be used. In this release position, the panel surfaces N of the panel members 6 and 7 form an angle of less than 180 ° with each other.

  In this case, when the panel member 7 is rotated so that the tail end side is raised upward, the panel member 7 prevents a separation movement parallel to the panel surface in a direction perpendicular to the connecting end surfaces of the panel members 6 and 7. What is necessary is just to incline until the engagement between the undercut surfaces 6b and 7b or 6e and 7e of both the joint elements 7a and 6a released is released by relative sliding between the two undercut surfaces. 7 can be easily removed.

  In the embodiment shown in FIGS. 3 and 3, the plate thickness direction locking element 8 includes a spring elastic locking plate 8a, and this locking plate is a plane orthogonal to both the joint connecting end surface and the panel surface. It can be elastically deformed within the cross section shown. The plate thickness direction locking element 8 is integrally provided with a fitting portion 8b at the base of the locking plate 8a, and this fitting portion is fitted and held in a recess 6c provided on the end surface of the joint element 6a. The recess 6c in this case is a two-stage recess having a narrow and deep portion and a wide and shallow portion in the illustrated cross section. At the opening edge of the recess 6c, the locking plate 8a protrudes beyond the joint boundary surface M from the end face of the joint element 6a in a free state. 3 and 4, the end face of the upper joint element 7a in the state indicated by the broken line in each (a) drawing passes through this joining boundary surface M in the process of reaching the engagement lock position shown in each (b) drawing. . The fitting portion 8b of the locking element 8 is fixed to the inner back part of the end face of the lower joint element 6a of the panel material 6 so that the locking element 8 does not fall off without permission.

  The upper joint element 7a is pushed downward in the drawing in response to the operation force of the cutter scissors movement, and the locking plate 8a of the locking element 8 is bent by the cam operation while its end surface passes through the joining boundary surface M. And automatically retracts into the recess 6c. The locking plate 8a of the locking element 8 automatically protrudes beyond the joint boundary surface M again by the accumulated elastic energy when the force that has bent it is lost, and the joint boundary surface M is blocked.

  Several dust chambers S are provided in the vicinity of the portion where the locking element 8 protrudes from the joint boundary surface M, whereby dust that may be generated in the use environment is caused by the joint elements 6a in the joint fitting portion. 7a and the locking element 8 can be confined to a region that does not impair the function. These dust chambers S can be provided in any of the embodiments shown in FIGS.

  3 and 4, the joint end surface b of the lower joint element 6a shown in the respective (b) drawings is preferably in surface contact with the corresponding joint end face c of the upper joint element 7a in the engagement lock position. As a result, a gap is not generated on the finished surface of the floor-clad structure due to the joining end faces b and c in contact with each other. That is, the panel surface N of each panel material is continuous with the adjacent panel N at a joint with no gap. In this case, the edge between the joint end surface b or c and the panel N is chamfered or rounded. Also good.

  In the embodiment shown in FIG. 3, there is a gap L at the engagement lock position between the free end of the lower joint element 6a and the lower end face of the upper joint element 7a facing the free end at the engagement lock position. It is supposed to be formed. Since the automatic locking operation by the spring elasticity of the locking element 8 when assembling both joint elements 6a and 7a is the only resistance factor that occurs when the upper joint element 7a descends on the joint interface M, the cutter It can be sufficiently perceived by a construction worker who gives an operation force of movement. In the embodiment shown in FIG. 4, the gap L is not formed at the engagement lock position as will be described later.

  During the fitting operation of the hook piercing joint by the cutter scissors movement, the cam interface is automatically moved from the joining boundary surface M into the recess 6c by the mechanical interference with the lower part of the joining end face c of the upper joint element 7a shown by the broken line. The locking plate 8a of the retracted locking element 8 is locked in the middle of the joint end surface c of the upper joint element 7a so that the locking can be achieved in the thickness direction between the joint elements upon completion of the fitting. A recess 7c is provided. When the fitting of the joint reaches the locking position, the locking plate 8a automatically engages with the spring by returning to the locking recess 7c beyond the joint boundary surface M by its spring elastic return force. . In the locking position, the locking plate 8a applies a resilient force to the inclined locking surface d of the locking recess 7c.

  The undercut surfaces 6b, 7b or 6e, 7e of the joint elements 6a, 7a are formed along the separation curved surface V1 or V2. In the illustrated embodiment, any undercut surface of each joint element has an ideal arc concave shape. However, a flat undercut surface or an arcuate convex undercut surface in the opposite direction may be employed. In this case, the undercut surface may be elastically deformed when the panel material is raised from the joint fitting state to the release position shown in FIGS. 3 and 4 (b) in some situations. Elastic deformation is acceptable as long as it does not interfere with the original function of each joint element.

  The panel surface N of the panel material 6 and the panel surface N of the panel material 7 are flush with each other at the same height in the proper fitting state. By performing an operation of applying a downward load to the panel surface N in the region of the upper joint element 7a by the cutter saddle movement, the abutting lower surface 7w of the upper joint element 7a is pressed against the support surface 6w of the lower joint element 6a. When both joint elements 6a and 7a have reached the engagement lock position, the contact lower surface 7w and the support surface 6w are in contact with each other, and there is no gap between the contact lower surface 7w and the support surface 6w. There can be no difference. In addition, as shown with the broken line in each (a) figure of FIG.3 and FIG.4, you may provide the dust chamber S in the contact lower surface of an upper joint element, and this is about either embodiment of FIG.3 and FIG.4. This is also true.

  FIG. 3 (c) is a partially enlarged cross-sectional view of IIIc showing a modified embodiment of the undercut surface effective for preventing separation of the panel members in a direction perpendicular to the joint end surface and parallel to the panel surface. In this additional embodiment, an intentional operating force is required to release the hooked phased joint. The panel material having both the joint elements 6a and 7a thus modified separates the panel materials connected by the hook-attached phased joint in a direction parallel to the panel surface in a direction perpendicular to the joint joining end surface. Demonstrates particularly excellent strength against the force to be tried. The undercut surfaces 6b and 7b that prevent such horizontal separation between the panel members 6 and 7 are not formed along the separation curved surface, but depending on the surface shape of the undercut surfaces 6b and 7b. The panel material separation and release operation is still possible. 3 and 4 unless similar emphasis is placed on the fact that the release of the undercut surfaces along the separation curved surface around the pivot axis during the separation operation is particularly simple and easy to operate. It is possible to adopt in any embodiment that employs any of the coupling elements shown in (1).

  The embodiment shown in FIG. 4 differs from the embodiment shown in FIG. 3 between the free end of the lower joint element 6a and the lower end face of the upper joint element 7a facing the free end at the engagement lock position. In the engagement lock position, a gap L is formed, and contact between the end faces is established. That is, as shown in FIG. 4 (a), the lower joint element 6 and the upper joint element 7 have an undercut which is finally brought into a fixed contact state by elastic deformation during the joint fitting operation by the cutter scissors motion. Contact surfaces 6d and 7d are provided. These contact surfaces 6d and 7d bring about a fixing action against the relative separation movement of the panel members in the panel separation direction due to elastic deformation in an appropriate joint fitting state.

  Further, in the embodiment shown in FIG. 4, the lower joint element 6a of the panel member 6 provided with the plate thickness direction locking elements 8 has a plurality of undercut surfaces 6b and 6e on the free end side, corresponding to this. 3 is different from the embodiment shown in FIG. 3 in that the upper joint element 7a of the adjacent panel member 7 is also provided with a plurality of complementary undercut surfaces 7b and 7e. As shown in FIG. 4, two undercut surfaces 6b and 6e and 7b and 7e are formed on the joint elements 6a and 7a, respectively, on separate curved surfaces V1 and V2. By providing each joint element 6a and 7a with two undercut surfaces arranged in parallel in the front-and-rear direction, it is possible to separate the panel members from each other in the direction perpendicular to the joint joint end surface in the direction parallel to the panel surface. The strength to prevent doubles.

  As apparent from FIG. 4 (b), the plurality of undercut contact surfaces of both joint elements can be used for both joint elements 6a when releasing the connection between the panels and by applying a cutter scissors motion. , 7a is fitted into the engagement lock position, and is separated or engaged by passing through the side by relative sliding.

It is a fragmentary perspective view which shows a mode that a new panel material is connected about 2 panel rows of the floor tension structure formed with the panel material by one Embodiment of this invention. It is principal part sectional drawing which shows the joint shape of the fitting joint which comprises the insertion joint in the 1st pair end surface of the panel material by one Embodiment of this invention about five types of ae. Sectional drawing (a) of the principal part which shows the mode of coupling | bonding operation by the cutter scissors movement of one panel material about the phased joint with a hook as a fitting joint in the 2nd pair end surface of the panel material by one Embodiment of this invention And a similar cross-sectional view (b) showing a state in which the connection of the phased joint with hooks is released by tilting one of the panel members when disassembling the panel, and parallel to the panel surface in a direction perpendicular to the joint joining end surface It is the IIIc partial expanded sectional view (c) which shows the deformation | transformation embodiment of an undercut surface effective in order to prevent the separation of the panel materials to a direction. FIG. 3A is a cross-sectional view of the main part showing the state of the coupling operation similar to FIG. 3A and FIG. It is principal part sectional drawing (b) which shows a mode that the connection of a coupling is cancelled | released.

Explanation of symbols

1: Panel material 2: Panel material 2a: Side end face 2b: Side end face 2c: Small end face 2d: Individual shoe end face 3: Panel material 4: Panel material 5: Panel material 6: Panel material 6a: Phase with hook Joint element of notched joint (lower joint element)
6b: Undercut surface 6c: Recessed portion 6d: Undercut contact surface 6e: Undercut surface 7: Panel material 7a: Joint element of phased joint with hook (upper joint element)
7b: Undercut surface 7c: Locking recess 7d: Undercut contact surface 7e: Undercut surface 8: Plate thickness direction locking element 8a: Locking plate 8b: Fitting portion b: Joining end surface c: Joining end surface d: Inclined Locking surface L: Air gap A: Undercut concave joint element A1: Undercut surface B: Spiral joint element B1: Undercut surface N: Panel surface R1: Panel row R2: Panel row V: Separation curved surface V1: Separation Curved surface V2: Separated curved surface

Claims (12)

Panel material (1, 2, 3, 4, 5, 6) having a rectangular surface having a panel surface (N) and four end surfaces (2a, 2b, 2c, 2d, 4d, 5a, 5c) forming the four sides of the panel surface (N). 7), wherein the four end surfaces are opposite to each other to form a first and second pair, and a plurality of similar panel materials (1, 2, 3, 4, 5, 6, 7) The end faces facing each other of the first pair and the second pair are complementary so that the end faces (2a, 2b, 2c, 2d, 4d, 5a, 5c) of the four sides can be connected to each other. The fitting joint of either one of the first pair and the second pair forms a bayonet joint, and the other pair of fitting joints is a phased joint (6a, 7a with a hook). And the same kind of panel material (1, 2, 3, 4, 5, 6, ) To each other by relative movement in a movable direction in a plane orthogonal to the panel surface, and a plate thickness direction locking element (8) as a separate part is provided on at least one of the phased joints (6a, 7a) with hooks. Two panel members attached, wherein the locking element protrudes at least partially beyond the joint interface (M) of the hooked phased joint (6a, 7a), the locking element (8) being adjacent (1, 2, 3, 4, 5, 6, 7) The coupling operation between the joints with the hooked phase-separated joints (6a, 7a) is automatically retracted by the spring action from the joint interface (M). In addition to being able to prevent the relative displacement in the plate thickness direction between the hooked interphase joints (6a, 7a) by automatically projecting again beyond the joint boundary surface (M) by the spring action after connection. ,
The plate thickness direction locking element (8) is made of a plastic material, and the phased joints (6a, 7a) with hooks are adjacent two panel materials (1, 2, 3, 4, 5, 6, 7). When the two panel members (1, 2, 3, 4, 5, 6, 7) are in a connected state in which the relative displacement in the thickness direction is locked by the mutual coupling with the hooks (6a, 7a). ) Is a joint shape that can be released from the locked state by the locking element by relative rotation in the movable direction with respect to the other, and two adjacent panel members (1) for performing the relative rotation 2, 3, 4, 5, 6, 7) rotate from the locked state toward the release position around the rotation axis extending to the joint end surface portion by the mutual coupling with hooks. Is possible, in the release position two adjacent Panel material characterized by forming the panel surface (N) an angle of less than each other from each other by 180 ° of the panel member (5, 6, 7).   The first pair of fitting joints are composed of an undercut concave joint element formed on one end face and a complementary tongue joint element formed on the other end face. 2. The panel material according to claim 1, wherein the undercut concave joint element and the tongue joint element can be coupled to each other by insertion.   The first pair of fitting joints form complementary hooked phased joints (6a, 7a), and are separate from at least one joint element of the first pair of hooked phased joints (6a, 7a). A plate thickness direction locking element (8) is attached, and the locking element (8) protrudes from the end face of the panel material (1, 2, 3, 4, 5, 6, 7) so as to be elastically deformable. 2. The panel according to claim 1, wherein an engagement recess (7 c) for receiving and engaging the protrusion is provided in the other joint element of the phased joint (6 a, 7 a) with the hook. Wood.   At least one of the first pair and the second pair forms complementary joints with hooks (6a, 7a) having shapes corresponding to each other in a complementary manner. At least one undercut surface (6b, 6e, 7b, 7e) is provided, and the undercut surfaces (6b, 6e, 7b, 7e) of the phased joints (6a, 7a) with hooks are in the locked state. Two adjacent panel members (1, 2, 3, 4, 5, 6, 7) are in contact with each other on separation curved surfaces (V, V1, V2) along the rotation direction of the relative rotation, The panel material according to any one of claims 1 to 3, wherein the panel member can be relatively displaced along the separation curved surface (V, V1, V2) between the locked state and the release position.   Adjacent panel members (1, 2, 3, 4, 5, 6, 7) can be positioned on the base member for connection by mutual hooked joints (6a, 7a). The panel members (1, 2, 3, 4, 5, 6, 7) positioned above and stationary are guided by the adjacent joints (6a, 7a) with each other's hooks. However, when connecting by relative rotation, the phased joints with hooks (6a, 7a) formed on the end surfaces of the stationary panel members (1, 2, 3, 4, 5, 6, 7) The panel material according to any one of claims 1 to 4, wherein the thickness direction locking element (8) is fixed to the joint element.   The panel material according to any one of claims 1 to 5, wherein the thickness direction locking element (8) includes an elastic protrusion extending in a longitudinal direction of the side of the panel surface.   The elastic protrusion of the plate thickness direction locking element (8) is elastically deformable in a direction parallel to the panel surface of the panel material (1, 2, 3, 4, 5, 6, 7). Item 7. The panel material according to Item 6.   The direction in which the elastic protrusion of the plate thickness direction locking element (8) is orthogonal to the panel surface of the panel material (1, 2, 3, 4, 5, 6, 7) and the locking element (8) are arranged The panel material according to claim 6, wherein the panel material can be elastically deformed in any direction perpendicular to the end face.   The panel material according to any one of claims 1 to 8, further comprising a core material made of a high-density fiberboard (HDF) or a medium-density fiberboard (MDF).   Each joint element which comprises the said insertion joint and a phased joint with a hook is comprised integrally with the core material of the panel material (1, 2, 3, 4, 5, 6, 7). Panel material as described in 1.   A plurality of the panel members (1, 2, 3, 4, 5, 6, 7) according to any one of claims 1 to 10 are connected to each other by fitting joints on their respective end faces. A floor-covered structure characterized by   The individual panel materials (1, 2, 3, 4, 5, 6, 7) are interconnected so that the connection can be released by a relative rotation operation by fitting joints on the respective end faces of the four sides. The floor covering structure according to claim 11, characterized in that the released panel material (1, 2, 3, 4, 5, 6, 7) can be returned to the connected state again.

Images