Deck member, deck member fixing structure, and fixing bracket

Abstract

To fix a deck material to a fixing material by large fixing force without sliding the deck material to the fixing material, in a structure for fixing the deck material to the fixing material by using a fixing metal fitting, by making only a specific deck material removable.SOLUTION: A fixing fitting f for fixing a deck material D to a joist material 63 is rotatably engaged and connected to a first fitting single body B1 fixed to the joist material 63 via a first screw F1 in a state of pressing a pressed surface part 7 which is a lower surface of a locking groove 3 of one adjacently arranged deck material D, and the first fitting single body F1 via its own rotary shaft part 23. And a second fitting single body F1 fixed to the joist material 63 via a second screw B2 by penetrating through the fixing plate part 11 of the first fitting single body F2 in a state of pressing an end edge part of a pressed surface part 7 of an under surface of the locking groove 3 of the other adjacently arranged deck material D.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a deck material that allows removal of only specific deck materials that constitute a deck laid as a floor surface in the outdoor space of a public facility or a residence, a fixing structure for the deck material, and fixing hardware. [Background technology]

[0002] The above-mentioned deck has a structure in which a number of long deck materials arranged perpendicular to the joists (fixing materials) are fixed to them with specified joints via fixing fittings, and is widely used in the above-mentioned parts.

[0003] A known conventional fixing structure for deck materials is the structure disclosed in Patent Document 1. This fixing structure uses a fixing bracket made of spring steel plate, which consists of a flat fixing portion that is fixed to the joist material with screws, and a pair of locking portions that are erected at obtuse angles from both ends of the fixing portion in the width direction and are partially inserted into locking grooves that are formed continuously in the longitudinal direction on both end faces of the deck material in the width direction. That is, the fixing brackets are fixed to the joists at intervals corresponding to the width of the deck material, and one end of the deck material, which is inclined along the width direction, is pressed close to the fixing bracket so that one locking portion of the fixing bracket is locked into the locking groove of the deck material.When the other end of the deck material is pressed against another fixing bracket adjacent to the fixing bracket, the one locking portion of the other fixing bracket is elastically deformed in a direction that reduces the upright angle and then returns to its original shape or a shape close to it, and the locking grooves at both ends of the deck material in the width direction lock into the locking portions on the opposing sides of a pair of adjacent locking brackets, and the deck material is fixed to the joists.

[0004] On the other hand, if a thin valuable such as a card or key falls through a joint between adjacent deck members that make up the deck and falls below the deck, it is necessary to remove the specific deck member to find the thin valuable. In this case, a tool is inserted through the joint, one end of the specific deck member in the width direction is lifted, and the specific deck member is then tilted in the width direction, and then the specific deck member is pulled out in the tilted direction.

[0005] However, because the spring steel plate fastenings allow the deck material to be attached and detached from the joists through their elastic deformation, the downward pressing force of the deck material against the joists and the lateral pressing force against the deck material are both small, which can lead to the deck material sliding widthwise when laid on the joists.Furthermore, because the fastenings are made from deformed spring steel plate, the fastenings are expensive. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 5091516 Summary of the Invention [Problem to be solved by the invention]

[0007] To provide a structure in which only a specific deck material is made removable and the deck material is fixed to a fixing material using fixing metal fittings, and to fix the deck material to the fixing material with a large fixing force without sliding the deck material to the fixing material. [Means for solving the problem]

[0008] The invention of claim 1 to solve the above problem is: A fastening fixture used to fasten a long deck material to a fastening material, the long deck material having locking grooves formed along the longitudinal direction on both end faces in the width direction, a first fitting unit fixed to the fixing material via a first screw while pressing a pressed surface portion, which is the lower surface of the locking groove of one of the adjacent deck materials; a second fitting unit that is rotatably engaged and connected to the first fitting unit via its pivot shaft portion, and that is fixed to the fixing material via a second screw that penetrates the fixing plate portion of the first fitting unit while pressing the edge portion of the pressed surface portion on the underside of the locking groove of the other deck material that is arranged adjacent to the first fitting unit; It is characterized by being composed of:

[0009] In the invention of claim 1, to secure multiple deck materials to a fixing material with specified joints, the first fitting unit constituting the fixing bracket is fixed to the fixing material with the first screw, and the second fitting unit is rotated in the opposite direction from the fixed state around its own pivot point to assume a rearward tilted position. In this state, the downward protrusion below the locking groove on the lower side of the deck material tilted along the width direction is inserted between the pressing plate of the first fitting unit and the fixing material, and then the higher side of the deck material tilted in the width direction is lowered to position the deck material horizontally on the fixing material. Thereafter, the second fitting alone, in its rearwardly tilted position, is rotated toward the deck material around the pivot shaft as a fulcrum, and the second fitting alone is fixed to the fixed material via the second screw.The pressed surface of the downward protrusion at one widthwise end of the deck material is pressed downward by the pressing plate of the first fitting alone, and the edge of the pressed surface of the downward protrusion at the other widthwise end is pressed downward by the pressing plate of the second fitting alone, thereby fixing the deck material to the fixed material.The above operations are then repeated to fix a large number of deck materials in parallel at predetermined intervals to the fixed material.

[0010] As another fixing method, with the first fitting alone fixed to the fixing material, the deck material placed on the fixing material is moved horizontally so that the downward protrusion at one widthwise end is forcibly inserted between the pressing plate portion of the first fitting alone and the fixing material. In this state, the first fitting alone of the fixing material is fixed to the fixing material to the side of the downward protrusion at the other widthwise end with the first screw, and then the pressing plate portion of the second fitting alone is placed on the edge of the pressed surface portion on the underside of the locking groove and this pressing plate portion is fixed to the fixing material with the second screw, thereby fixing the deck material to the fixing material. Thereafter, the above operations are repeated to fix multiple deck materials in parallel at predetermined intervals to the fixing material.

[0011] Furthermore, to remove only a specific deck material from a large number of deck materials arranged in parallel and fixed to the fixing material, the second screw is removed with a screwdriver inserted through one of the widthwise joints of the specific deck material, and the other widthwise end of the specific deck material is used as a fulcrum to lift that end.The second fitting alone, which is no longer fixed to the fixing material, is tilted backward using its own pivot axis as a fulcrum, so that the specific deck material can be lifted further upward without interfering with the second fitting alone, and then pulled out in that inclined direction.

[0012] To replace the removed deck material, the downward protrusion at one widthwise end of the deck material is forcibly inserted into the joint between the first bracket and the fastener, and then, while maintaining the backward tilt position of the second bracket located at the other widthwise end of the deck material using tools, the deck material is rotated around the widthwise end of the deck material, which is tilted in the widthwise direction, and repositioned on the fastener. After that, a screwdriver is inserted through the joint formed between the deck material and another adjacent deck material to horizontally position the main plate of the backward tilted second bracket, and the main plate is re-fixed to the fastener with the second screw.

[0013] The invention of claim 2 is characterized in that, in the invention of claim 1, the second fitting alone, which is in a rearwardly inclined position when not fixed to the first fitting alone, is fitted onto the first fitting alone to maintain the rearwardly inclined position.

[0014] According to the invention of claim 2, when a deck material is newly fixed or when the deck material is re-fixed after being removed, the second fitting alone, which is in a rearwardly inclined position, will not assume a horizontal fixed position and will maintain the rearwardly inclined position unless the engagement is released.Therefore, when leveling a deck material that is inclined along the width direction, interference between the deck material and the second fitting alone can be avoided and the tasks of fixing and re-fixing the deck material can be carried out.

[0015] The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the rotation shaft portion of the second fitting alone has a circular cross section, and the first fitting alone has an engaged hole with an incomplete circular cross section and a central angle of more than 180° that engages with the rotation shaft along the radial direction so that the second fitting alone cannot be pulled out, and by crimping and deforming both sides of the part of the first fitting alone with which the rotation shaft portion of the second fitting alone is engaged towards the inside of the engaged hole, the second fitting alone cannot be pulled out from the first fitting alone along the axial direction of the rotation shaft.

[0016] According to the invention of claim 3, the second fitting alone can be prevented from slipping out along the axial direction of the pivot shaft portion relative to the first fitting alone, and the first and second fittings alone will not separate immediately before storing, transporting, or working with the fixing fittings, so that the deck material can be fixed stably and the fixing fittings can be easily handled even when stored or transported.

[0017] The invention of claim 4 is as follows: A structure in which a deck material having locking grooves formed along the longitudinal direction on both end faces in the width direction is removably fixed to a fixing material using the fixing metal fittings according to any one of claims 1 to 3, By fixing a first metal fitting unit of the fixing bracket to the fixing material via a first screw, the pressed surface portion on the underside of the locking groove of one of the adjacent deck materials is pressed by the pressing plate portion of the first metal fitting unit, and a second metal fitting unit rotatably connected to the first metal fitting unit via a pivot shaft portion is fixed to the fixing material via a second screw that passes through the fixing plate portion of the first metal fitting unit, and the pressing plate portion presses the edge portion of the pressed surface portion on the underside of the locking groove of the other adjacent deck material, so that a large number of deck materials are arranged in parallel via joints and fixed to the fixing material. A specific deck material can be removed by loosening the second screw with a tool inserted through the joint formed between it and another adjacent deck material, or by removing it from the fixing material, thereby making the second fitting alone rotatable relative to the first fitting alone via the pivot shaft portion.The specific deck material can then be rotated around the other end in the width direction as a fulcrum, thereby rotating the second fitting alone around the pivot shaft portion toward the other adjacent deck material, and the specific deck material can be removed.

[0018] The invention of claim 4 is a structure in which a deck material having locking grooves formed along the longitudinal direction on both end faces in the width direction is removably fixed to a fixed material using fixing hardware as described in any of claims 1 to 3, and the method of fixing a large number of deck materials in parallel to the fixed material, and the method of removing only a specific deck material from a large number of deck materials arranged in parallel, are the same as the operation of the invention of claim 1 already described.

[0019] The invention of claim 5 is characterized in that, in the invention of claim 4, the pressed surface portion, which is the lower surface of the locking groove of the deck material, is formed parallel to the upper surface of the deck material, the outer edge portion of the pressed surface portion is chamfered in an arc shape, and the pressing plate portion of the second fitting alone presses the outer edge portion of the locking groove of the deck material from above at an angle, generating both downward and lateral pressing forces, making it possible to narrow the width, which is the extension length in the direction perpendicular to the axis of its own pivot shaft portion.

[0020] According to the invention of claim 5, by chamfering the edge of the pressed surface, which is the underside of the locking groove in the deck material, into an arc, the pressing plate portion of the second fitting alone presses the edge of the pressed surface, which is chamfered into an arc, on the deck material from above, generating both downward and lateral pressing forces, thereby increasing the pressing force of the deck material against the fastener and the sliding resistance of the deck material exerted by pressing the deck material laterally. As a result, in addition to achieving these effects, because the pressing plate portion of the second fitting alone is configured to press the edge of the pressed surface, which is chamfered into an arc, on the deck material from above, it is possible to narrow the width of the main body plate portion at whose tip the pressing plate portion is formed, to a width that is the length perpendicular to the axis of its own pivot shaft. By narrowing the width of the second fitting alone, which is rotatably connected to the first fitting alone via its own pivot shaft, it is possible to avoid interference with the inner surface of the locking groove when the second fitting alone is placed in a rearward tilted position, and interference between the second fitting alone and a specific deck material when lifting one end of the specific deck material in the width direction to remove the specific deck material.

[0021] The invention of claim 6 is characterized in that, in the invention of claim 4 or 5, the locking groove of the deck material has a curved surface portion whose cross section is formed in an arc shape centered on the pivot shaft portion so that when the deck material is removed, the rotation of the main plate portion of the second fitting alone, with the pivot shaft portion as the pivot fulcrum, allows the main plate portion to avoid interference with other deck material adjacent to the deck material.

[0022] According to the invention of claim 6, the locking groove of the deck material has a curved surface portion with an arc-shaped cross section that can avoid interference with the main body plate portion of the second fitting alone when it rotates around its own pivot axis portion as a fulcrum, so that the second fitting alone can be tilted backward without any hindrance.

[0023] The invention of claim 7 is characterized in that, in the invention of claim 4, a joint material is fitted onto one of the inner end faces that form the joint between adjacent deck materials, leaving a drainage gap.

[0024] According to the invention of claim 7, the joint width between adjacent deck materials is narrowed by the thickness of the joint material, thereby ensuring a drainage gap that allows water to drain downward and preventing thin valuables such as cards and keys from falling through the joint.

[0025] The invention of claim 8 is characterized in that in the invention of claim 7, the joint material is molded from a phosphorescent resin.

[0026] According to the invention of claim 8, the joint material emits light at night, which increases the safety of walking at night, and the luminescence of the joint material is expected to create a light-emitting effect in dark spaces at night.

[0027] The invention of claim 9 is as follows: A long deck material used to form a floor-like planar space, in which a large number of pieces are fixed in parallel arrangement with predetermined joints in the fixing material using the fixing metal fittings according to any one of claims 1 to 3, The locking grooves formed continuously along the longitudinal direction at both ends of the width direction of the deck material are a pressed surface portion formed by a lower surface parallel to the upper surface of the deck material and pressed by the pressing plate portions of the first and second metal fittings that constitute the fixing metal fitting; an outer edge portion of the pressed surface portion that is chamfered in an arc shape; a curved surface portion whose cross section is formed in an arc shape centered on the pivot shaft portion in order to avoid interference when the second fitting alone pivots toward another deck material adjacent to the deck material, using its own pivot shaft portion as a fulcrum, when removing the deck material; It is characterized by having:

[0028] According to the invention of claim 9, the outer edge of the pressed surface that forms the underside of the locking groove in the deck material is chamfered in an arc shape, and the pressing plate portion of the second fitting alone presses against this edge from above at an angle, thereby increasing the pressing force of the deck material against the fixed material and the sliding resistance of the deck material that is exerted by pressing the deck material laterally; moreover, the width of the pressed surface of the second fitting alone, which is the extension length in the direction perpendicular to the axis of its own pivot shaft, can be narrowed, and the radius of the curved surface formed in the locking groove in the deck material can be reduced. [Effects of the Invention]

[0029] The fixing hardware of the present invention is composed of a first fitting unit that fixes one adjacent deck material to the fixed material, and a second fitting unit that fixes the other adjacent deck material to the fixed material. The second fitting unit is rotatably connected to the first fitting unit via its pivot shaft. By pressing the pressing plate unit of the second fitting unit obliquely upward against the outer edge of the pressed surface, which is the underside of the locking groove of the other adjacent deck material, it generates a vertical component force that presses the other adjacent deck material against the fixed material, and a horizontal component force that acts as a slide-resistant force that prevents the other adjacent deck material from sliding. This allows the deck material to be fixed with a large fixing force without sliding relative to the fixed material. [Brief explanation of the drawings]

[0030] [Figure 1] 1 is an overall perspective view of a deck D0 in which a large number of deck materials D are arranged in parallel. [Figure 2] 10(a) and 10(b) are respectively a plan view and a front view of a partially enlarged corner portion of the deck D0. [Figure 3] 1(a) and 1(b) are a perspective view and a cross-sectional view of the deck material D, respectively. [Figure 4] FIG. 10 is an enlarged cross-sectional view of the adjacent portion of two adjacently arranged deck materials D. [Figure 5] 1(a) and 1(b) are perspective views of the first and second metal fitting units F1 and F2 that make up the fixing metal fitting F in a separated state and a connected state, respectively. [Figure 6] 1(a) and 1(b) are cross-sectional views of the first and second metal fitting units F1 and F2 that make up the fixing metal fitting F in a separated state. [Figure 7] 1 is a cross-sectional view of the first and second metal fitting units F1 and F2 that make up the fixing metal fitting F in a connected state. [Figure 8] 1(a) is a cross-sectional view of a fixing metal fitting F in which first and second metal fitting units F1 and F2 are connected, and FIG. 1(b) is a cross-sectional view taken along line XX in FIG. 1(a). [Figure 9] 1 is a combined front view and plan view of a state in which first metal fitting units F1 that make up the fixing metal fitting F are fixed to a joist material 63 at regular intervals. [Figure 10] 1(a) is a front view of the state in which the downward protrusion 5 at one end in the width direction of the inclined deck material D is inserted between the pressing plate portion 13 of the fixed first metal fitting unit F1 and the joist material 63 for installation, and FIG. 1(b) is a front view of the state in which the other end in the width direction of the deck material D is fixed to the joist material 63 by the second metal fitting unit F2 after the deck material D has been installed. [Figure 11] 10(a) and 10(b) are front views showing the order in which the next deck material D is fixed to the joist material 63 in the same manner. [Figure 12] (a) to (c) are front views showing the sequence of work to lay deck material D on joist material 63, by repeatedly placing deck material D on joist material 63 and then fixing the deck material D to joist material 63 using fixing brackets F each time. [Figure 13] 10(a) and 10(b) are front views showing the order in which a specific deck material D is removed from a deck D0 on which a large number of deck materials D are laid. [Figure 14] (a-1) and (a-2) are front views showing the state in which the rearward tilted position of the second metal fitting unit F2 is maintained using the tip of a tool 67 and adhesive tape 68 in order to reposition a specific deck material D that has been removed from the deck D0 to its original position. [Figure 15](b) and (c) are front views of the state in which the second metal fitting unit F2 in a rearward tilted position is placed in a fixed position and the first and second pressing plate portions 24, 25 of the second metal fitting unit F2 are pressed against the pressed surface portion 7 and the radiused chamfered portion 6 of the downward protruding portion 5 of the deck material D to be rearranged using the second screw B2. [Figure 16] This is an oblique view of a state in which joints 51 between adjacent deck materials D have been partially filled with joint material J. [Figure 17] FIG. 11 is an enlarged cross-sectional view of the joint 51. [Figure 18] 10 is a cross-sectional view of an LED tape light T fitted into a joint 51. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0031] The present invention will be described in more detail below with reference to the best embodiment. First, the structure of the deck D0 will be described with reference to Figures 1 and 2, followed by a description of the deck material D that constitutes the deck D0 and the fixing brackets F that fix the deck material D to the joists 63. Joists 62 are fixed horizontally on a plurality of bundling posts 61 installed at predetermined intervals on the installation surface G. A plurality of joists 63 are fixed on the plurality of joists 62 along the longitudinal direction of the joists 62 at predetermined intervals and perpendicular to the joists 62. A large number of long deck materials D are arranged in parallel on the plurality of joists 63 with only a few joints between them, thereby forming the floor-like deck D0.

[0032] The long deck material D can be made from either recycled or natural wood, but using recycled wood allows for the reuse and effective use of resources. Recycled wood, also known as artificial wood or synthetic wood, is formed by extrusion molding using recycled resin, recycled wood powder, etc. as its main raw materials. As shown in Figures 3 and 4, the deck material D is made from recycled wood and has a rectangular cross section with a large slenderness ratio, an upper surface 1 and a lower surface 2 that are parallel to each other, and locking grooves 3 are formed on both end surfaces in the width direction, opening to the sides. Above and below the locking groove 3, upper protrusions 4 and lower protrusions 5 are formed, respectively, protruding laterally. Multiple deck materials D are arranged in parallel with the joists 63 at predetermined joints and are fixed to the joists 63 at their downward protrusions 5 via fasteners F. To ensure space for the fasteners F and to allow for the removal and re-fixing of specific deck materials D, the protrusion length of the upper protrusions 4 relative to the locking grooves 3 is longer than the protrusion length of the lower protrusions 5. As a result, the width W1 of the upper surface of the deck material D is slightly wider than the width W2 of the lower surface (W1 > W2). The end faces 4a, 5a of the upper and lower protrusions 4 and 5 are formed perpendicular to the upper and lower surfaces 1 and 2 of the deck material D, respectively. The connections between the end faces 4a, 5a, the upper surface 1, the lower surface 2 of the deck material D, and the locking grooves 3 are all arc-shaped in cross section, forming radiused chamfers 6. The lower surface 3a of the locking groove 3 is formed parallel to the lower surface 2 of the deck material D and functions as a pressed surface 7 that is pressed downward by the pressing plate 13 of the first fitting unit F1 that constitutes the fixing bracket F. An insertion and holding groove 8 is formed continuously in the longitudinal direction at the center of the height of the end surface 4a of the upward protrusion 4, allowing a joint material J (described later) to be placed on the end surface 4a. Furthermore, when the opposing ends of adjacent deck materials D are fixed to the joist 63 via the fixing bracket F, the upper half of the locking groove 3 is formed as a curved surface 3b that has an arc-shaped cross section and a radius R that is the length from the axis C of the pivot shaft 23 of the second fitting unit F2 to the tip of the second pressing plate 25 at the tip of the main body plate 21. The lower half of the curved surface 3b is formed as a plane that is perpendicular to the lower surface.

[0033] Furthermore, during extrusion molding of the deck material D, a plurality of hollow portions 9 with a square cross section are formed at regular intervals in the width direction between the locking grooves 3 at both ends in the width direction, thereby reducing the weight of the deck material D. Although the top surface of the deck material D is flat in the illustration, a large number of anti-slip grooves can be easily formed along the longitudinal direction (extrusion direction) during extrusion molding. Furthermore, during extrusion molding of the deck material D, a two-layer deck material can be used by "two-layer extrusion molding" in which most of the deck material D, excluding the surface layer, is molded using the above-mentioned recycled resin, recycled wood powder, etc. as raw material, and only the surface layer is molded using a different resin raw material. Also, in Figure 4, W 11 indicates the width of the joint 51 between adjacently arranged deck materials D, and the width W of the joint 51 11 In order to remove a specific deck material D from the deck D0, it is necessary to be able to insert a Phillips head screwdriver 66 to loosen the second screw B2. 12 indicates the width of the fixing metal fitting arrangement space 52 between the end faces 5a of the downward protrusions 5 of the adjacently arranged deck materials D, and the fixing metal fitting arrangement space 52 that allows the fixing metal fittings F for fixing the deck materials D to the joists 63 to be arranged between the deck materials D fixed to the joists 63 is defined as the necessary width W 12 The width W is secured between adjacent deck materials D. 11 Since the joints 51 are provided, accidents in which thin valuables fall through the joints 51 into the deck D0 and are lost will inevitably occur.

[0034] Next, the fixing fittings F for fixing the deck material D to the joist material 63 will be described with reference to Figures 5 to 8. The fixing fittings F consist of a first fitting unit F1 for fixing one adjacent deck material D to the joist material 63, and a second fitting unit F2 that is rotatably connected to the first fitting unit F1 and for fixing the other adjacent deck material D to the joist material 63. The first and second fitting units F1, F2 are formed by cutting a metal extrusion to a predetermined length, and their cross sections are the same at all positions along the longitudinal direction. The first metal fitting unit F1 comprises a flat fixing plate portion 11 fixed to the joist material 63 via the first screw B1, an upright plate portion 12 standing at right angles to one widthwise end of the fixing plate portion 11 and abutting the end face 5a of the downward protruding portion 5 of the deck material D, a pressing plate portion 13 pressing against the pressed surface portion 7 which is the lower surface 3a of the locking groove 3, a connecting plate portion 14 connecting the pressing plate portion 13 and the upright plate portion 12 and positioned opposite the curved chamfered portion 6 above the downward protruding portion 5 of the deck material D, and a curved plate portion 15 having an arc-shaped cross section formed integrally with the upper half of the upright plate portion 12 on the opposite side to the pressing plate portion 13, so that the curved plate portion 15 and the upright plate portion 12 form an engaging hole portion 16 which opens on the upper surface side and has an incomplete circular cross section with a central angle of more than 180°. When a new deck material is fixed, or when a specific deck material D is re-fixed after being removed, the first fitting unit F1 has its pivot shaft 23 inserted into the locking hole 16 to rotate the second fitting unit F2, which is rotatably connected to the first fitting unit F1, and maintain a rearwardly inclined position retracted to the opposite side (rear) from the pressing position. A fitted portion 17 into which the fitting portion 26 of the second fitting unit F2 fits is provided on the surface side of the connecting plate 14. The surfaces of the upright plate portion 12 and the pressing plate portion 13 that come into contact with the end face 5a of the downward protrusion 5 of the deck material D and the lower surface 3a of the locking groove 3 are formed with fine irregularities in cross section, allowing them to stably abut against the deck material D without slipping.The fixing plate 11 has a pair of first screw insertion holes 18a formed at both longitudinal ends for a first screw B1 for fixing the fixing plate 11 to the joist material 63, and a second screw insertion slot 18b formed in the center of the pair of first screw insertion holes 18a for inserting a second screw B2 for fixing the second fitting unit F2, which is rotatably connected to the first fitting unit F1, to the joist material 63. Note that a straight recess 19 formed along the longitudinal direction in the center of the width direction of the fixing plate 11 indicates the formation positions of the first screw insertion holes 18a and second screw insertion slots 18b.

[0035] The second metal fitting unit F2, which is rotatably connected to the first metal fitting unit F1, comprises a main body plate portion 21 that is arranged horizontally when the deck material D is fixed, an upright plate portion 22 that is integrally connected to one widthwise end of the main body plate portion 21 at its widthwise middle portion perpendicular to the main body plate portion 21, a rotating shaft portion 23 with a circular cross section that is provided on the part of the upright plate portion 22 that is positioned below the main body plate portion 21 when the deck material D is fixed, a first pressing plate portion 24 that is positioned at the other widthwise end of the main body plate portion 21 and is pressed from above against the rounded chamfered portion 6 above the downward protrusion 5 of the deck material D, and a second pressing plate portion 25 that is integrally formed at the obliquely upper end of the first pressing plate portion 24 and presses from above against the pressed surface portion 7 that is connected to the rounded chamfered portion 6 above the downward protrusion 5 of the deck material D. A fitting portion 26 having a fitting surface 26a is integrally formed on the end of the standing plate portion 22 opposite the pivot shaft portion 23 so that the second fitting unit F2 can fit tightly against the fitted portion 17 of the first fitting unit F1 when it is rotated to the maximum extent around the pivot shaft portion 23 in the opposite direction to when it is fixed. On the side of the main body plate portion 21 where the second pressing plate portion 25 is provided, a tool hooking plate portion 27 is provided for hooking a tool 65 onto and maintaining the retracted state of the second fitting unit F2 rotated to the maximum extent in the opposite direction to when it is fixed relative to the first fitting unit F1 when a specific deck material D is removed, repositioned, and fixed again.

[0036] The first metal fitting unit F1 is formed to be longer than the second metal fitting unit F2, and the pivot shaft portion 23 of the second metal fitting unit F2 is inserted from one longitudinal end of the engaged hole portion 16 of the first metal fitting unit F1. With the second metal fitting unit F2 positioned in the longitudinal center of the second metal fitting unit F2, as shown in Figure 8, when the outer portions of both axial ends of the pivot shaft portion 23 of the second metal fitting unit F2 on the curved plate portion 15 of the first metal fitting unit F1 are crimped toward the inner engaged hole portion 16, anti-detachment protrusions 30 are formed on both sides of the pivot shaft portion 23 on the curved plate portion 15. The second metal fitting unit F2, which is rotatably connected to the first metal fitting unit F1, can only move slightly along the axial direction of its own pivot shaft portion 23 and cannot be separated from the first metal fitting unit F1. A straight groove 28 is formed in the main body plate portion 21 of the second metal fitting unit F2 at the same position as the straight groove 19 of the first metal fitting unit F1 when viewed in a plane, and a second screw insertion hole 29 for inserting the second screw B2 is formed in the longitudinal center of the straight groove 28.

[0037] 9 to 11 show the construction sequence for fixing the deck material D having the above structure to the joist material 63 using the fixing metal fittings F. First, as shown in FIG. 9, a large number of fixing metal fittings F are fixed from one end of the long joist material 63 in the longitudinal direction to the other end using first screws B1. The interval between adjacent fixing metal fittings F is determined by the width W1 of the top surface 1 of the deck material D and the width W of the joint 51 between adjacent deck materials D. 11 The sum of (W1+W 11 ) As for the fixing metal fittings F fixed to both ends of the joist material 63, only the first metal fitting unit F1 is fixed.

[0038] 10(a), when the second metal fitting unit F2 of the second-most fixing metal fitting F is rotated around the axis C of the pivot shaft 23 in the opposite direction from the fixed position to assume an inclined position, the connecting plate 14 of the first metal fitting unit F1 and the upright plate 12 of the second metal fitting unit F2 come into close contact with each other, and the mating surface 26a, which is connected at an obtuse angle to the upright plate 22 of the second metal fitting unit F2, is mated with the mating portion 17 of the first metal fitting unit F1, thereby maintaining the rearwardly inclined position of the second metal fitting unit F2. In this state, the lower downward protrusion 5 of the deck material D, which is inclined along the width direction, is forcibly inserted between the pressing plate 13 of the first metal fitting unit F1 fixed to the joist 63 and the joist 63, and the deck material D is then placed horizontally on the top surface of the joist 63. 10(b), a second screw B2 is inserted through the second screw slot 29 of the second metal fitting unit F2 and the second screw slot 18b formed in the fixing plate portion 11 of the first metal fitting unit F1 already fixed to the floor joist 63, and the second screw B2 is screwed into the floor joist 63 using a Phillips screwdriver 66. As a result, the other widthwise end of the deck material D, one widthwise end of which is fixed to the floor joist 63 via the first metal fitting unit F1, is fixed to the floor joist 63 via the second metal fitting unit F2. To fix another deck material D to the floor joist 63 consecutively to the already fixed deck material D, the other deck material D is fixed adjacent to the already fixed deck material D in exactly the same way as the first deck material D, as shown in FIGS. 11(a) and 11(b).

[0039] 7 and 10(b), when the second metal fitting unit F2, which is in a backward tilted position at the other end of the deck material D fixed to the floor joist 63, is rotated toward the fixed position around the pivot shaft 23 as a fulcrum, its first pressing plate 24 is pressed against the radiused chamfered portion 6 of the downward protrusion 5 of the deck material D, and an oblique pressing force S acts on the radiused chamfered portion 6. The horizontal component S1 of this oblique pressing force S presses the deck material D toward the other fixed first metal fitting unit F1, and the vertical component S2 of this oblique pressing force S presses the downward protrusion 5 downward. Furthermore, the second pressing plate 25 of the second metal fitting unit F2 cooperates with the vertical component S2 of the oblique pressing force S to press the downward protrusion 5 downward, so that the deck material D fixed to the floor joist 63 is pressed against the floor joist 63 with a large pressing force. In addition, the downward protrusion 5 at the other end in the width direction of the deck material D fits snugly into the insertion space between the pressing plate portion 13 of the first metal fitting unit F1 fixed to that part and the surface of the joist material 63, and the horizontal component force S1 of the inclined pressing force S causes the end face 5a of the downward protrusion 5 to be pressed against the inner surface of the upright plate portion 12 of the first metal fitting unit F1, so there is no risk of the deck material D fixed to the joist material 63 sliding in its width direction.

[0040] The above construction method for fixing the deck material D to the joist material 63 is to fix a number of fixing metal fittings F to the joist material 63 at set intervals (W1 + W 11) is placed and fixed in advance, and the deck material tilted in the width direction is placed in an insertion position against the first metal fitting F1 of the fixing fitting F which has already been fixed to the joist material 63, but construction can also be done using the following method. That is, as shown in FIG. 12 , the first metal fitting unit F1 is fixed in advance only to one longitudinal end of the joist material 63, and the first deck material D is slid over the joist material 63, with the downward protrusion 5 on the tip side inserted into the gap between the pressing plate portion 13 of the fixed first metal fitting unit F1 and the surface of the joist material 63, and the end face 5a of the downward protrusion 5 abutting the inner surface of the standing plate portion 12 of the first metal fitting unit F1. Then, the first metal fitting unit F1 of the fixing metal fitting F is fixed to the downward protrusion 5 on the front side of the first deck material D, and the first and second pressing plate portions 24, 25 of the second metal fitting unit F2 are pressed against the radiused chamfered portion 6 and the pressed surface portion 7 of the downward protrusion 5 on the front side, respectively. Then, the second metal fitting unit F2 is fixed to the joist material 63 via the second screw B2. This causes the two deck materials D to be spaced apart by a predetermined width W. 11 The deck materials D are arranged adjacent to each other with the joints 51 therebetween. Thereafter, the same operation as above is repeated to arrange a large number of deck materials D in parallel on the joists 63.

[0041] Furthermore, after the deck materials D have been laid, if for some reason a thin valuable such as a card falls through a joint 51 between adjacent deck materials D and the thin valuable needs to be found, it is necessary to remove a specific deck material D. In this case, as shown in Figure 13(a), this is done by loosening the second metal fitting F2 of one of the widthwise fixing fittings F that secures the specific deck material D to the joist material 63. That is, a Phillips screwdriver 66 is inserted through the joint 51 to loosen the second screw B2 of the second metal fitting unit F2 and remove it from the deck. Then, as shown in Figure 13(b), tool 65 is used to lift and tilt the specific deck material D to a predetermined height, using the other widthwise end of the specific deck material D as a fulcrum. As the specific deck material D is lifted, the second metal fitting unit F2, which had been pressing against the downward protrusion 5 on the side where the second screw B2 was removed, rotates around its pivot 23 in the opposite direction to the pressing direction, separating it from the specific deck material D. The specific deck material D can then be pulled out in the tilted direction. If the second metal fitting unit F2 on the lifted side interferes when lifting one widthwise end of the specific deck material D, loosen the first screw B1 and / or second screw B2 on the other widthwise end of the specific deck material D to loosen the locking restriction on that end.

[0042] 14(a-1) and 14(a-2), to fix the removed specific deck material D in its original position, a tool 67 or adhesive tape 68 is used to forcibly insert the downward protrusion 5 on the lower side of the specific deck material D, tilted along the width direction, into the gap between the surface of the joist 63 and the pressing plate 13 of the first fitting F1 fixed to the joist 63 from above at an angle while maintaining the second fitting F2 at its maximum inclination relative to the first fitting F1. Then, the higher side is lowered along the width direction, allowing the specific deck material D to be installed on the joist 63 without interfering with the second fitting F2 at its maximum inclination. The second fitting F2 is then rotated around its pivot 23 to its original position. Then, a Phillips screwdriver 66 is inserted through the joint 51 between adjacent deck materials D to screw the second screw B2 into the second fitting F2. This re-fixes the specific deck material D to the joist material 63.

[0043] 16 and 17 show a structure in which joints 51 of adjacent deck materials D are partially filled with joint material J while leaving drainage gaps 44 in the joints 51, thereby narrowing the width of the joints 51 and preventing thin valuables from falling through the joints 51. The end face 4a of the upward protrusion 4 of the deck material D is the surface that becomes the inner end face of the joint 51, and the joint material J is formed of a rubber material or the like, and has a shape in which an upright plate portion 41 that abuts against the inner end face (end face 4a) and a horizontal plate portion 42 provided at the lower end of the upright plate portion 41 are integrally formed with each other and have an inverted T-shaped cross section, and an insertion protrusion 43 that is inserted into the insertion holding groove 8 of the deck material D is integrally formed at the upper end of the upright plate portion 41. The upright plate portion 41 of the joint material J is brought into close contact with one of the inner end faces (end face 4a) that constitute the joint 51 of the deck material D, and the tip of the upward protrusion 4 of the deck material D is clamped between the insertion protrusion 43 inserted into the insertion and holding groove 8 formed on the inner end face and the clamping portion 42a of the horizontal plate portion 42 on the side of the insertion protrusion 43. The upright plate portion 41 is then attached to the inner end face (end face 4a) with an adhesive such as double-sided tape, so that the joint material J is held on the end face 4a of the upward protrusion 4 of the deck material D, and the joint material J partially fills part of the joint 51 while leaving a drainage gap 44. In other words, the drainage gap 44 is formed between the end of the horizontal plate portion 42 of the joint material J opposite the clamping portion 42a and the upward protrusion 4 of another deck material D adjacent to the deck material D to which the joint material J is attached. This structure prevents thin valuables from falling through the joint 51 and getting lost.

[0044] Here, if the joint material J is molded from a phosphorescent resin containing a substance that emits light even when external light irradiation is stopped, the joint material J will emit light at night, thereby increasing the safety of walking at night, and the emission of light from the joint material J can be expected to create a light-emitting effect in dark spaces at night.

[0045] 18, an LED strip light T can be inserted into a joint 51 between adjacent deck materials D to illuminate the joint 51. The LED strip light T has multiple LEDs embedded at predetermined intervals between the tape materials. The LEDs are powered by a battery or other source of light, achieving the same effect as the phosphorescent resin. One side of the LED strip light T is attached to the end surface 4a of the upward protrusion 4 of one of the deck materials that makes up the joint 51 with an adhesive such as double-sided tape, with the lower end surface of the LED strip light T abutting the head of the second screw B2. This creates a drainage gap 47 between the LED strip light T and the other end surface of the joint 51.

[0046] Here, it is desirable to place the above-mentioned joint material J and LED tape light T only in one of several consecutive joints 51, rather than in all joints 51, and it is also possible to place them only in a part of one joint 51 that is frequently used as a deck, rather than over the entire length.

[0047] Furthermore, the fixing hardware that secures the deck material D to the joist material 63 is not limited to the configuration of the above embodiment, as long as it comprises a first hardware unit having a pressing plate portion that presses the pressed surface portion, which is the underside of the locking groove of one of the adjacent deck materials, and a second hardware unit that is rotatably connected to the first hardware unit via its own pivot shaft portion and has a pressing plate portion that presses the radiused chamfered portion of the outer edge portion of the pressed surface portion of the underside of the locking groove of the other adjacent deck material and the portion connected to this. [Explanation of symbols]

[0048] B1: First bis B2: Second screw D: Deck material F: Fixing bracket F1: First metal fitting only F2: Second metal fitting only J: Joint material S: Pressing force S1: Horizontal component of pressing force S2: Vertical component of pressing force W1: Width of the top surface of the deck material W 11 :Joint width W 12 : Width of metal fittings placement space 3: Locking groove 3b: Curved surface of the locking groove 6: Chamfered part 7: Pressed surface part 8: Insertion holding groove 11: Fixed plate part 13: Pressing plate section 17: Fitted part 21: Main body plate 23: Rotating shaft 26: Fitting part 30: Pull-out prevention protrusion 41: Standing plate part 42:Horizontal plate part 42a: Holding part 43: Insertion protrusion 44,47:Drainage gap 63: Joist material (fixed material) 51: Joints between adjacent deck materials

Claims

1. A fastening fixture used to fasten a long deck material to a fastening material, the long deck material having locking grooves formed along the longitudinal direction on both end faces in the width direction, a first fitting unit fixed to the fixing material via a first screw while pressing a pressed surface portion, which is a lower surface of the locking groove of one of the deck materials arranged adjacent to the first fitting unit; a second fitting unit that is rotatably engaged and connected to the first fitting unit via its pivot shaft portion and is fixed to the fixing material via a second screw that penetrates the fixing plate portion of the first fitting unit while pressing the edge portion of the pressed surface portion on the underside of the locking groove of the other deck material that is arranged adjacent to the first fitting unit; A fixing bracket characterized by comprising:

2. The fixed metal fitting according to claim 1, characterized in that the second metal fitting alone, which is in a rearwardly inclined position when not fixed to the first metal fitting alone, is configured to be fitted onto the first metal fitting alone to maintain the rearwardly inclined position.

3. 3. A fixing bracket according to claim 1 or 2, characterized in that the pivot shaft portion of the second fitting alone has a circular cross section, the first fitting alone has an engaged hole with an incomplete circular cross section and a central angle exceeding 180° that engages with the pivot shaft along the radial direction so as to prevent extraction, and both sides of the portion of the first fitting alone with which the pivot shaft portion of the second fitting alone is engaged are crimped and deformed toward the inside of the engaged hole, making it impossible for the second fitting alone to extract from the first fitting alone along the axial direction of the pivot shaft.

4. A structure in which a deck material having locking grooves formed along the longitudinal direction on both end faces in the width direction is removably fixed to a fixing material using the fixing metal fittings according to any one of claims 1 to 3, By fixing a first metal fitting unit of the fixing bracket to the fixing material via a first screw, the pressed surface portion on the underside of the locking groove of one of the adjacent deck materials is pressed by the pressing plate portion of the first metal fitting unit, and a second metal fitting unit rotatably connected to the first metal fitting unit via a pivot shaft portion is fixed to the fixing material via a second screw that passes through the fixing plate portion of the first metal fitting unit, and the pressing plate portion presses the edge portion of the pressed surface portion on the underside of the locking groove of the other adjacent deck material, so that a large number of deck materials are arranged in parallel via joints and fixed to the fixing material. A specific deck material can be removed by loosening the second screw with a tool inserted through the joint formed between it and another adjacent deck material, or by removing it from the fixing material, thereby making the second fitting alone rotatable relative to the first fitting alone via the pivot shaft.The specific deck material can then be rotated around the other end in the width direction as a fulcrum, thereby rotating the second fitting alone around the pivot shaft toward the other adjacent deck material, thereby making it possible to remove the specific deck material.This is a deck material fixing structure characterized by the above.

5. The deck material fixing structure described in claim 4, characterized in that the pressed surface portion, which is the lower surface of the locking groove of the deck material, is formed parallel to the upper surface of the deck material, the outer edge portion of the pressed surface portion is chamfered in an arc shape, and the pressing plate portion of the second fitting alone presses the outer edge portion of the locking groove of the deck material from above at an angle, generating both downward and lateral pressing forces, thereby making it possible to narrow the width, which is the extension length perpendicular to the axis of its own pivot shaft portion.

6. A deck material fixing structure as described in claim 4 or 5, characterized in that the locking groove of the deck material has a curved surface portion whose cross section is formed in an arc shape centered on the pivot shaft portion so that when the deck material is removed, the rotation of the main plate portion of the second fitting alone, with the pivot shaft portion as the pivot fulcrum, allows the main plate portion to avoid interference with another deck material adjacent to the deck material.

7. A deck material fixing structure as described in claim 4, characterized in that a joint material is fitted into one of the inner end faces that form the joint between adjacent deck materials, leaving a drainage gap.

8. 8. The deck material fixing structure according to claim 7, wherein the joint material is made of a phosphorescent resin.

9. A long deck material used to form a floor-like planar space, in which a large number of fixing members are fixed in parallel arrangement with predetermined joints using the fixing metal fittings according to any one of claims 1 to 3, The locking grooves formed continuously along the longitudinal direction at both ends of the width direction of the deck material are a pressed surface portion formed by a lower surface parallel to the upper surface of the deck material and pressed by the pressing plate portions of the first and second metal fittings that constitute the fixing metal fitting; an outer edge portion of the pressed surface portion that is chamfered in an arc shape; a curved surface portion whose cross section is formed in an arc shape centered on the pivot shaft portion in order to avoid interference when the second fitting alone pivots toward another deck material adjacent to the deck material, using its own pivot shaft portion as a fulcrum, when removing the deck material; A deck material characterized by having:

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