JP2009024410A - Joint device for flooring material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint structure for a flooring material, which enables the flooring materials to be joined together with no space between, even in the use of the flooring material of such a type that the flooring materials to be joined together are joined together by an engaging means in a symmetrical shape. <P>SOLUTION: This joint structure comprises: a horizontal base plate 8 which is arranged on a horizontal recessed groove 6 provided on the side surface 1a of the flooring material; an upper locking side 10 which is locked to an upper inner wall surface 9 of a hollow groove 5 provided inside the lateral surface of the flooring material from the inner lateral side of the horizontal base plate 8; a lower locking side 11 which is locked to a lower outer wall surface 12 below the horizontal recessed groove 6 from the outer lateral side of the horizontal base plate 8; and a joint locking side 13 which is horizontally extended out to such a length as to pressure-bond an undersurface 7 in the horizontal recessed groove 6 of another flooring material joined adjacently from the outer lateral side of the horizontal base plate 8. A screw hole 14 for inserting an inclined screw is provided in the central portion of the horizontal base plate 8. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention can arrange and join floor materials such as deck materials arranged in parallel on a floor surface of a terrace or the like in a building in a state where the joint surfaces are close to each other so that there is almost no gap between them. The present invention relates to an apparatus for joining floor materials.

  Conventionally, among the constructions for arranging and fixing deck materials on a floor surface such as a terrace, the following are widely known. For example, as in the prior art 1 shown in FIG. 10A, when the deck material A1 made of synthetic resin is arranged and fixed on the joist B, the lateral groove C1 is formed on the side surface of one floor material A1. The upper flange F1 of the pressing tool D having a groove shape in cross section is locked to the upper surface of the lower locking portion E1 formed by providing the.

  Next, as shown in FIG. 9b, the side surface corresponding to the floor material A1 of another adjacent floor material A2 is pressed in the direction of the side surface of the floor material A1, and the upper flange F2 of the presser D is laterally recessed groove C2. After pressing correctly against the upper surface of the lower locking portion E2, a screw N is inserted from above the center of the grooved pressing member D to the bottom surface of the pressing member D, and the pressing member D is fixed onto the joist B with the screw N.

  Further, as another joining device, as in the related art 2 shown in FIG. 11, the ridge H is provided on the side surface of one floor material A1 adjacent to each other, and the concave surface is provided on the side surface of the corresponding other floor material A2. K is provided, and the floor material A1 is fixed by inserting a screw N or a nail in an inclined manner from the upper surface of the ridge H of the floor material A1 to the lower joist material B, and then the other floor material A2 is fixed. There is known a structure in which the ridge H of the flooring material A1 is pressed into the concave groove K so as to be fitted into the flooring material A1.

JP 2002-146901 A JP 2004-218111 A JP 2006-63747 A JP-A-9-78805

  Among the above-mentioned floor material joining devices, in the one shown in FIG. 9b, the floor material A1 and the lower locking portions E1 and E2 of the floor material A2 joined to the floor material A1 are finally connected to the upper flange F1, Since the center bottom surface of the pressing tool D can be fixed to the joist B with the screw N in a state of being pressed by F2, the joint portion between the side surface of the floor material A1 and the side surface of the floor material A2 adjacent thereto In addition, a gap G is provided so that the inserted screw N can be tightened with a screwdriver.

  The wide gap G that allows the screw N to be tightened with a screwdriver is provided at the joint between the side surface of the flooring material A1 and the side surface of the flooring material A2, in view of air permeability. Although it can be said that it is preferable, since dust easily dissipates through the gap G toward the bottom of the floor, the dust that has fallen into the gap G must be continuously sucked and discharged, which has the problem of troublesome management.

  On the other hand, in the joining apparatus according to the prior art 2 shown in FIG. 11, the protruding ridges H on the side surface of the flooring material A1 are fixed to the joist member B with screws N or nails inserted in an inclined manner, and the convexity on the side surface of the flooring surface A1. By fitting the groove H on the side surface of the flooring material A2 to the strip H, the side surface of the flooring material A1 and the side surface of the flooring material A2 are joined without a gap, and the gap G as in the apparatus of FIG. There is no problem caused by the provision of.

  However, in the structure in which the side surface of the flooring material A1 and the side surface of the flooring material A2 are joined without gaps as in the joining device shown in the prior art 2, the ridge H is provided on one side surface of the single flooring material A1, On the other side surface, a pair of asymmetric engagement means having different shapes are provided on both front and rear side surfaces of one floor material A1 so that a concave groove K joined to the ridge H of the floor material A1 is provided. It will be necessary.

  That is, as in the prior art 2, in a structure in which asymmetrical engaging means having different shapes, such as one of the ridges H and the other of the grooves K, is provided on both front and rear side surfaces of one flooring material A1. As shown in the prior art 1, it cannot be used for an application in which a gap G for improving air permeability is provided between the side surface of the flooring material A1 and the side surface of the flooring material A2. There is a problem that it can be used only for the purpose of a structure in which it is closely adhered and joined.

  Similarly, in the engaging means for fixing the gap between the lateral grooves C1 and C2 provided on the side surface of the flooring material A1 and the side surface of the flooring material A2 at both ends of the presser D as in the prior art 1, the joining means In the work process, a screwdriver must be inserted between the flooring material A1 and the flooring material A2 and the screw N must be tightened. Therefore, the flooring material A1 and the flooring material A2 cannot be joined without a gap. There is a problem that the floor material can be used only for the use of a structure in which the floor materials are joined so as to have a gap G.

  Moreover, since the floor material joining structure of the prior art 1 fixes between the horizontal concave grooves C1 and C2 provided on the side surfaces of the floor material A1 and the floor material A2 at both ends of the presser D, the floor material A1 and the floor material A2 are fixed. Both of them are composed of symmetrical engaging means having the same shape as the lateral concave grooves C1 and C2 in the cross-sectional shape of the side surfaces, and are asymmetrical engagements such as the ridge H and the concave groove K of the prior art 2. Since no joint means is provided, this type of flooring has the problem that it cannot be used for applications where the flooring is in close contact with each other.

  Thus, in this type of conventional flooring joint structure, when joining so as to provide a gap for improving air permeability between the flooring and the flooring, both cross sections are provided on both sides. When floor materials having symmetrical engagement means having the same shape are used, and floor materials are joined in close contact with each other, protrusions are provided on one side surface and concave grooves are provided on the other side surface. Thus, the flooring provided with the asymmetrical engagement means in which the shape differed in the front and back both sides of one flooring was used.

  However, as described above, the cross-sectional shape is different on both sides due to the difference in the joining method depending on the application, whether the flooring is joined with a gap or the flooring is joined with no gap. The fact that floor materials with the same symmetrical engagement means and floor materials with asymmetrical engagement means with different shapes on both sides must be manufactured and stocked separately. For those skilled in the art, since a plurality of production lines are provided and maintenance corresponding to each is required, it is not preferable from the viewpoint of cost reduction.

  On the other hand, for example, when joining floor materials and flooring materials having symmetrical engagement means having the same cross-sectional shape on both side surfaces, these flooring materials and flooring materials are separated by separate joining brackets having different shapes. By allowing the flooring to be joined in an array with gaps or in an array with no gaps, the producer can Since it is sufficient to manage the product by providing a facility for manufacturing one kind of flooring material having symmetrical engagement means having the same cross-sectional shape, a reduction in cost can be expected.

  In order to eliminate this kind of problem in the conventional flooring joint structure, the present invention provides an engaging groove having a cross-sectional shape of left and right and vertical symmetry on both side surfaces of the flooring joined opposite to each other. Even if the flooring is equipped with a special fitting joint that fits the engagement grooves on both sides of the flooring, the flooring and the flooring are approached so that almost no gap is visible. Therefore, it is possible to provide a highly practical floor material joining structure that can be joined at regular intervals.

  The floor material joint structure of the present invention uses a synthetic resin floor material, and this floor material corresponds to the floor material side surface along the length direction of one floor material and the floor material side surface. The other side of the floor material to be joined is a hollow groove having a height along the thickness direction of the floor material, and the height direction of the hollow groove is perpendicular to the hollow groove and the side surface of the floor material. A flooring provided with left and right and vertically symmetrical engaging grooves made up of transverse concave grooves in the direction is used. In addition, this shape flooring is known from Japanese Patent Application Laid-Open No. 2006-63747 of Patent Document 3.

  Specifically, in the joining structure of the present invention, when the above flooring materials are joined to each other, both flooring materials can be joined between one flooring side surface and the other flooring side surface. By providing metal fittings, even when both floor materials to be joined are floor materials having symmetrical joining grooves on the side surfaces, the floor material joining structure enables the floor materials and the floor materials to be joined at very narrow intervals. Is to provide.

  In the floor material joint structure of the present invention, as a specific means for that purpose, a joint metal fitting is provided between one floor material side surface and the other floor material side surface. A horizontal substrate is disposed on the lower surface of the lateral groove.

  The joining bracket includes an upper locking side that protrudes vertically from the inner side of the horizontal substrate to the upper inner wall surface of the hollow groove inside the floor material side surface, and the floor material side surface from the outer side of the horizontal substrate. And a lower locking side protruding vertically downward so as to be locked to the side surface of the floor material below the lower surface of the horizontal concave groove.

  In addition, the outer side of the horizontal substrate located on both sides of the lower locking side is joined horizontally extending in such a length as to be crimped to the lower surface of the lateral concave groove of another floor material to be joined adjacently. A locking side is provided.

  Further, the center portion of the horizontal substrate is provided with a screw hole for inserting an inclined screw provided with a semicircular cutout on the upper side of the lower locking side.

  As described above, in the conventional floor material joint structure, the floor material side surface to be joined and the floor material side surface are joined by a symmetrical engagement means, and the floor material and the floor material are all joined together. It joined so that a clearance might be provided between them, and the subject that a flooring and a flooring could not be joined without a gap occurred.

  For such a problem, in the floor material joint structure of the present invention, even when a floor material of a type in which the floor material side surface to be joined and the floor material side surface are joined by a symmetrical engagement means is used. By installing a fitting that can join the flooring and the flooring close to each other, the side of the flooring and the side of the flooring can be joined close to each other with a small gap between them. . Of course, in the case of using a joining bracket that can join the flooring with a gap to the flooring of the type that is joined by this symmetrical engaging means, Needless to say, they can be joined so that a gap is provided between them.

  Therefore, conventionally, when the floor material side surface and the floor material side surface are joined without a gap, the floor material side surface and the floor material side surface are provided with asymmetric engagement means such as ridges and grooves on the floor material side surface. Although the floor material is required, the use of the joint structure of the present invention eliminates the necessity of the floor material of the type provided with the asymmetric engaging means such as the ridge and the groove, and the floor material and the floor material. If only floor materials of a type that are joined to each other by means of symmetrically engaging means are prepared, it can be used according to the application, so that significant cost rationalization can be expected.

  In the floor material joining apparatus of the present invention, since the floor material and the floor material are joined by the right and left symmetrical engaging means, there is no difference between the front and the back and the left and right as the floor material, and the usability as the floor material at the time of work It has good effects such as good handling by sharing parts and rationalization in terms of management.

  Next, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a floor material 1 constituting a floor material joint structure according to the present invention and a joint metal fitting 3 for joining the floor material 1 to each other without a gap. The shape is shown.

  As shown in FIG. 2, the flooring 1 is composed of a long plate material formed from synthetic resin waste and building wood waste as raw materials. As shown in FIG. 9, on the joist 2, A left-right and up-down symmetrical relationship for joining the side surface 1b of the other floor material 1B adjacent to the floor material side surface 1a along the length direction L of one floor material 1A via the joint fitting 3. A joint groove 4 is provided.

  As the flooring 1A having the engagement groove 4 having such a shape, for example, a flooring having an engagement groove as described in JP-A-2006-63747 shown as Patent Document 3 is used. preferable. As shown in FIG. 2 of the present invention, the engagement groove 4 includes a vertically long hollow groove 5 provided in the thickness of the right side surface 1a along the length L direction of the flooring 1A, and the hollow groove 5 It is comprised from the horizontal concave groove 6 provided between the outer wall surfaces of the floor material right side surface 1a.

  The hollow groove 5 is a vertically long hollow groove having a length W along the plate thickness T direction from the outer wall surface of the floor material right side surface 1a to the inside of the plate. The openings are opened to communicate along the L direction.

  On the other hand, the laterally recessed groove 6 is arranged between the hollow groove 5 and the outer wall surface of the floor material right side surface 1a in a direction perpendicular to the length W direction of the hollow groove 5, and the outer wall surface of the floor material right side surface 1a is It is provided so as to open continuously along the length L direction of the flooring 1A.

  The left and right side surfaces 1a and 1b of the flooring 1A are provided with the hollow groove 4 and the laterally recessed groove 6 so that the shape of the left and right side surfaces 1a and 1b of the flooring 1A is symmetrical left and right and up and down. Can be interchangeable flooring.

  The joint fitting 3 for joining the flooring materials 1 to each other is made of a metal plate having a thickness of about 0.5 to 1 mm. As shown in FIGS. The horizontal substrate 8 disposed on the lower surface 7 of the horizontal substrate 8 and the inner side 8a along the length direction of the horizontal substrate 8 are locked to the upper inner wall surface 9 of the vertically long hollow groove 5 on the right side surface 1a of the flooring. And an upper locking side 10 bent vertically upward.

  Further, on the outer side 8b of the horizontal substrate 8, a part of the center is bent vertically downward from the lower surface 7 of the laterally recessed groove 6 on the floor material right side surface 1a to the lower outer wall surface 12 of the hollow groove 5. It has a lower locking side 11 to be locked.

  Furthermore, the outer side 8b of the horizontal substrate 8 located on both sides of the lower locking side 11 has such a length that it can be crimped to the lower surface 7 of the lateral groove 6 in another floor material 1B joined adjacently. And has a joint locking side 13 extending in the horizontal direction.

  Further, a screw hole 14 for inserting an inclined screw for fixing the horizontal substrate 8 to the floor material 1A and fixing the floor material 1A to the joist material 2 is provided in the central portion of the horizontal substrate 8. ing. The screw hole 14 is provided with a semicircular bent portion 15 in which a part of the upper side of the lower locking side 11 is bent downward as viewed from above.

  As shown in FIG. 8, the bent portion 15 is a part of the front side of the screw hole 14 when the guide hole 17 is provided by the drill 18 in advance as an operation before the screw 16 is screwed from the upper side of the screw hole 14. Is opened downward, so that the drill 18 can be easily pushed from an obliquely upward position, which is useful for an accurate and reliable fixing operation.

  When joining the flooring of the present invention, as shown in FIGS. 1 and 7, the upper locking side 10 of the joint fitting 3 of the present invention is inserted into the lateral groove 6 in the right side surface 1 a of the flooring 1 </ b> A. When the horizontal substrate 8 is arranged on the lower surface 7 of the lateral concave groove 6 so as to pass through, the upper locking side 10 of the joint fitting 3 is locked to the upper inner wall surface 9 in the hollow groove 5 and at the same time the lower locking The side 11 is locked to the lower outer wall surface 12 below the horizontal concave groove 6 on the right side surface 1a of the flooring, and the horizontal substrate 8 is stably and horizontally supported on the lower surface 7 of the horizontal concave groove 6, and the screw as the next step It is possible to facilitate the 16 screwing operations.

  Next, on the outer side of the horizontal substrate 8, a joining locking side 13 having a length that can be crimped to the lower surface 7 of the lateral groove 6 in another floor material 1 </ b> B that is joined adjacently protrudes in the horizontal direction. Therefore, as shown in FIG. 7, while holding the joint locking side 13 with the fingertip, a guide hole 17 by a drill 18 is provided obliquely from above toward the screw hole 14 formed in the horizontal substrate 8.

  When the guide hole 17 is provided by the drill 18, the screw head 20 can pass obliquely above the guide hole 17, that is, on the line on the upper outer wall surface 19 of the lateral groove 6 through which the drill 18 passes. A recess 21 having such a size is provided, and then, as shown in FIG. 9, the screw 16 is screwed using the guide hole 17 as a guide, so that the screw hole 14 of the horizontal substrate 8 is formed on the lower surface of the screw head 20. Is sufficiently fixed by crimping, and the flooring 1 </ b> A is fixed to the joist 2.

  Next, after the flooring 1A is fixed, as shown in FIG. 9, the flooring left side 1b of the flooring 1B adjacent to the flooring right side 1a is brought close to the flooring right side 1a of the flooring 1A. When the joint locking side 13 protruding horizontally from the rear side is inserted into the horizontal concave groove 6 of the flooring 1B, the lower surface 7 of the horizontal concave groove 6 on the left side surface 1b of the flooring is formed by the joint locking side 13 of the flooring 1A. It will be crimped in the direction of the lower joist 2 and the floor material left side surface 1b of the floor material 1B can be fixed.

  In the joint structure of the present invention, as shown in FIG. 9, the lower outer wall surface 12 of the joint fitting 3 is locked to the lower outer wall surface 12 of the floor material right side surface 1a of the floor material 1A. The plate | board thickness of the lower latching edge 11 protrudes on the surface of this. Therefore, strictly speaking, when the right side surface 1a of the flooring 1A and the left side surface 1b of the flooring 1B are brought into contact with each other, as shown in FIG. 9, the lower locking is provided between the right side surface 1a and the left side surface 1b. A close joint 23 consisting of a narrow gap that is almost indistinguishable corresponding to the plate thickness of the side 11 of 0.5 to 1 mm is generated.

  Strictly speaking, the small joint 23 is not a thing in which the flooring 1A and the flooring 1B are in close contact with each other, but is a very narrow gap of about 0.5 to 1 mm. There seems to be no gap between the floor and the flooring. In addition, the small joint 23 is affected by deformation due to expansion and contraction of each of the arranged floor materials, for example, when the floor material and the floor material are brought into contact with each other so that the small joint 23 does not occur. There is a problem that the seam rises due to the difference or a sound is generated by rubbing, but such a problem can be solved when there is a very narrow gap between the flooring 1A and the flooring 1B. it can.

  In addition, when it is necessary to closely contact the flooring 1A and the flooring 1B without a gap, as shown in FIG. 9, a plate of the lower locking side 11 is formed on the lower outer wall surface 12 of the left side surface 1b of the flooring 1B. If a concave groove 22 in which the thickness can be fitted is provided in advance, the lower locking edge 11 is fitted into the concave groove 22 when the right side surface 1a of the flooring 1A and the left side surface 1b of the flooring 1B are brought into contact with each other. Thus, the right side surface 1a of the flooring material 1A and the left side surface 1b of the flooring material 1B can be completely joined without a gap.

  In the floor material joining structure of the present invention, even when a floor material of a type in which the floor material to be joined and the floor material are joined by engaging means that are symmetrical to the left and right and up and down is used, the floor material and the floor material are almost completely separated. Since it can be joined at a narrow interval such that there is no gap, as a means for joining the flooring and the flooring without any gaps as in the conventional case, the ridges and grooves are formed on the flooring and the flooring. Since it is not necessary to prepare as a product a floor material of the type in which such asymmetric engaging means is provided, waste as this type of product is eliminated, and a significant cost reduction can be expected.

The perspective view which shows a shape when the joining metal fitting of this invention is attached to the flooring side surface. The perspective view which shows the shape of the floor material joined using the joining metal fitting of this invention. The top view which shows the shape of the joining metal fitting of this invention. The side view of a joining metal fitting similarly. Sectional drawing in the XX of FIG. Sectional drawing in the YY line | wire of FIG. The partial expanded side view of the state which attached the joining metal fitting to the flooring side in the case of the joining work of flooring. The side view of the state which fixed the joining metal fitting to the floor material side with the screw similarly. The side view of the state which joined another flooring side surface via the joining metal fitting to one flooring side surface. The side view which shows the joining process at the time of using the floor material in which the joining means of the side surface in the past is symmetrical. The side view which shows the joining state at the time of using the flooring in which the joining means of the side surface in the past is asymmetrical.

Explanation of symbols

1A, 1B: flooring,
1a: Floor material right side surface, 1b: Floor material left side surface,
2: joist,
3: Joining bracket,
4: engagement groove,
5: Hollow groove,
6: Transverse groove,
7: The bottom surface of the lateral groove,
8: Horizontal board,
9: Upper inner wall surface,
10: Upper locking side,
11: Lower locking side,
12: Lower outer wall surface,
13: Joining locking side,
14: Screw hole,
15: bent part,
16: Screw,
17: Guide hole,
18: Drill,
19: Upper outer wall surface,
20: Screw head,
21: Dimple,
22: concave groove,
23: Small joint

Claims (1)

The length of the floor material along the thickness direction of the floor material between the inside of the side surface of the floor material along the length direction of one floor material and the inside of the side surface of the other floor material joined corresponding to the inside of the side surface of the floor material A floor in which an engaging groove comprising a hollow groove and a laterally recessed groove established in a direction orthogonal to the length direction of the hollow groove is provided between the hollow groove and the side surface of the floor material symmetrically A flooring joining device using wood,
A joint fitting is provided between one floor material side and the other floor material side,
This joining metal fitting is a horizontal substrate disposed on the lower surface of the horizontal concave groove of the flooring,
An upper locking side protruding upward to be locked to the upper inner wall surface of the hollow groove inside the side surface of the floor from the inner side of the horizontal substrate;
A lower locking side that protrudes downward from the outer side of the horizontal substrate so as to be locked to the lower outer wall surface below the lower surface of the lateral groove,
Bonding lock extending horizontally to the outer side of the horizontal substrate located on both sides of the lower locking side and extending in such a length as to press the inner and lower surfaces of the horizontal concave groove of another floor material to be adjacently bonded And have sides
An apparatus for joining floor materials, wherein the horizontal substrate is provided with a screw hole for inserting an inclined screw in which a semicircular bent portion is provided on an upper side of a lower locking side.

Images