Box supporter and box support structure

Abstract

To provide a box supporter which improves workability, is capable of preventing a box from falling and facilitates a position adjustment of the box during work, and a box support structure.SOLUTION: A box supporter 1 is configured to support a box 4 and fix the same to a rear face of a wall material 3. The box supporter 1 comprises: a horizontal rail 6 which has one end fixed to a column material 7 and which extends in a horizontal direction in parallel with the wall material 3; a connection metal fitting 8, which is movable along the horizontal rail 6, including a fixture part 80, which is abutted on and fixed to a face of the box 4 at an opposite side of a face at the side of the wall material 7, and a rail holding part 81 which is in press-contact with a face of the horizontal rail 6 at an opposite side of the box 4 and presses the horizontal rail 6 to the side of the box 4; and regulation means 90 and 91 for regulating movement of the connection metal fitting 8 or the box 4 along the horizontal rail 6.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a box support for supporting a wiring box to be fixed to the rear surface of a wall material, and a box support structure using said box support. [Background technology]

[0002] Conventionally, various structures have been known that support a wiring box on the back side of a wall material in order to connect cables wired inside the wall to equipment mounted on the wall. For example, Patent Documents 1 and 2 propose a structure that is formed in an L-shape having a fixing part that is fixed by abutting against the side of a lip channel steel pillar material and a horizontal rail that extends laterally from the pillar material, and supports a wiring box on the horizontal rail.

[0003] Also, for example, Patent Document 3 proposes a structure in which a box is abutted against the back surface of a wall material in line with an opening in the wall material, and is tightly installed without gaps by bolts that penetrate the flanges of the box. These boxes are provided with through holes, and wiring cables such as power lines, antenna wires, and LAN cables that are wired inside the wall are pulled into the box, and power and specified signals are supplied to the outside of the wall through the opening in the wall material. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2021-126032 A [Patent Document 2] JP 2022-129891 A [Patent Document 3] JP 2010-148183 A Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, when a box is fixed to a horizontal rail supported by a pillar material as in Patent Documents 1 and 2, the support fittings for fixing the box are installed from the surface of the box facing the wall material, so if the wall material that contacts the box is installed first, it becomes difficult to fix the horizontal rail and the box. Also, in a structure in which the box is abutted against the back surface of the wall material and the flange of the box is fixed to the back surface of the wall material with bolts as in Patent Document 3, the box is simply fixed to the back surface of the wall material, so there is a risk that the box will not be fixed sufficiently or that the box will come off when a cable is inserted or removed.

[0006] Therefore, an object of the present invention is to provide a box support and a box support structure that are easy to install, can prevent the box from falling off, and allows easy adjustment of the position of the box during installation. [Means for solving the problem]

[0007] The first box support of the present invention is a box support for supporting a box and fixing it to the back surface of a wall material, and has a horizontal rail whose one end is fixed to a pillar material and extends in a horizontal direction parallel to the wall material, a fixing portion that abuts and is fixed to the face of the box opposite the wall material side, and a rail retaining portion that presses the horizontal rail against the face of the horizontal rail opposite the box, and is characterized in that it is equipped with connecting fittings that are movable along the horizontal rail, and a regulating means for regulating the movement of the connecting fittings or the box along the horizontal rail.

[0008] The second box support of the present invention has, in addition to the characteristics of the first box support, a feature in which the fixing portion is fixed to the box by a fastener which penetrates the fixing portion and is fixed to the face of the box opposite the face facing the wall material.

[0009] A third box support of the present invention, in addition to the features of the second box support, is characterized in that the rail retaining portion is integrally formed with the fixed portion, and is formed in a groove shape having an upper horizontal portion facing the upper surface of the horizontal rail, a lower horizontal portion facing the lower surface of the horizontal rail, and a bottom portion connecting the upper horizontal portion and the lower horizontal portion, the length of the upper horizontal portion and the lower horizontal portion in the direction protruding from the bottom portion being less than the thickness of the horizontal rail, and the bottom portion is pressed against the surface of the horizontal rail opposite the box.

[0010] A fourth box support of the present invention has the same features as the third box support, but is characterized in that the regulating means is a screw that penetrates the bottom portion and is driven into the horizontal rail.

[0011] A fifth box support of the present invention has, in addition to the features of the second box support, characterized in that the fixing portion is a flat member arranged between the horizontal rail and the box, and the rail retaining portion has a protrusion protruding from the fixing portion so as to be adjacent to one of the upper and lower surfaces of the horizontal rail, a hook portion formed adjacent to the other of the upper and lower surfaces of the horizontal rail, wrapping around to the surface of the horizontal rail opposite the box, and having a screw hole formed therein, and a fixing screw that screws into the screw hole and has its tip pressed against the surface of the horizontal rail opposite the box.

[0012] A sixth box support of the present invention, in addition to the characteristics of the third or fifth box support, is characterized in that it has a plate fixed to the face of the box facing the wall material so as to protrude from the box like a brim, and the regulating means is a screw that penetrates the plate and is driven into the wall material.

[0013] The seventh box support of the present invention has, in addition to the characteristics of the third or fifth box support, a flat plate portion at the end facing the pillar which abuts the surface of the pillar facing the horizontal rail, and the flat plate portion has a screw insertion hole into which a fixing screw that can be driven into the pillar can be inserted, and a bolt insertion hole into which a bolt that can be screwed into a fixing hole located inside the pillar can be inserted.

[0014] The first box support structure of the present invention is a box support structure using the third or fifth box support device of the present invention, wherein the horizontal rail has a flat plate portion at the end on the pillar side that abuts the surface of the pillar on the horizontal rail side, the pillar is a lip channel steel, and an insertion plate formed in a plate shape longer than the opening width of the pillar and having a fixing hole into which a bolt can be screwed is provided inside the pillar, and the bolt inserted through a bolt insertion hole provided in the flat plate portion is screwed into the fixing hole, thereby drawing the insertion plate toward the flat plate portion, and clamping the lip of the pillar between the flat plate portion and the insertion plate, thereby fixing the horizontal rail to the pillar.

[0015] The second box support structure of the present invention is characterized in that, in addition to the features of the first box support structure, the flat plate portion has a column fixing portion in which the bolt insertion hole is provided, and a rail extension portion from which the horizontal rail extends, and the column fixing portion and rail extension portion are formed adjacent to each other vertically. Effect of the Invention

[0016] According to the first box support of the present invention, the connecting fittings that secure the box to the horizontal rail have a fixing portion that is fixed to the surface of the box opposite to the wall material side and a rail holding portion that presses the horizontal rail toward the box, so that the connecting fittings are fixed to the horizontal rail by pressing the rail holding portion against the horizontal rail, and the connecting fittings are fixed to the box by fixing the fixing portion to the box, and therefore the horizontal rail and the box can be fixed via the fixing portion. When the pressure of the rail holding portion against the horizontal rail loosens, the connecting fittings and the box can slide along the horizontal rail, making it easy to adjust their horizontal position during installation, and the provision of a restricting means makes it possible to restrict unintended movement of the connecting fittings and the box along the horizontal rail after installation.

[0017] According to the second box support of the present invention, the fixing part is fixed to the box by a fastener that penetrates the fixing part and is fixed to the side of the box opposite the wall material side. Therefore, the work of fixing the fixing part to the box is carried out from the side opposite the wall material side. Therefore, even when the work of fixing the box to the horizontal rail is carried out after the wall material has been constructed, the wall material does not get in the way and the work can be easily carried out.

[0018] According to the third box support of the present invention, the rail retaining portion is formed in a groove shape having an upper horizontal portion, a lower horizontal portion, and a bottom portion, and is formed integrally with the fixed portion, and the length of the upper horizontal portion and the lower horizontal portion protruding from the bottom portion is less than the thickness of the horizontal rail.Therefore, by simply fixing the fixed portion to the box, the bottom portion of the rail retaining portion can be pressed against the horizontal rail, thereby reducing the amount of construction work required.

[0019] According to the fourth box support of the present invention, the regulating means is a screw that penetrates the bottom portion and is driven into the horizontal rail, so that the horizontal movement of the connecting fitting and the box fixed to the connecting fitting can be simply and reliably regulated, and the horizontal position of the connecting fitting and the box can be easily adjusted by removing the screw.

[0020] According to the fifth box support of the present invention, a protrusion is formed on either the top or bottom and a hook is formed on the other, and with the fixing part fixed to the box, the horizontal rail is sandwiched between the protrusion and hook of the rail holding part, so that the box can be temporarily placed on the horizontal rail, and then the fixing screw is screwed into the screw hole formed in the hook part and tightened, so that the tip of the fixing screw is pressed against the horizontal rail and fixed, so that after positioning the box, it can be fixed with the fixing screw, improving workability. When the connecting fitting is fixed to the box and then the connecting fitting is fixed to the horizontal rail in this order, the connecting fitting can be hooked and fixed from any position in the length direction of the horizontal rail, so that work can be easily performed even if the box is already fixed to a wall material.

[0021] According to the sixth box support of the present invention, the part of the plate that protrudes from the box is penetrated and screws are driven into the wall material to restrict the horizontal movement of the box. Since the box is fixed to the horizontal rail and the box using connecting fittings, and the box is also fixed to the wall material, the box is doubly fixed. This provides a fail-safe design which prevents the box from falling off even if one of the fixations loosens for some reason.

[0022] According to the seventh box support of the present invention, the flat plate portion formed at the end of the horizontal rail on the pillar side has screw insertion holes into which fixing screws that can be driven into the pillar can be inserted, and bolt insertion holes into which bolts that can be screwed into fixing holes located inside the pillar can be inserted.Therefore, if the pillar is, for example, a square timber or a square steel pipe, the horizontal rail can be fixed by driving a fixing screw into the screw insertion hole.If the pillar is, for example, a lip channel steel, an insertion plate of a size that will catch on the lip can be placed inside the pillar, and a bolt inserted into the bolt insertion hole can be screwed into the fixing hole of the insertion plate, thereby sandwiching and fixing the lip of the lip channel steel between the insertion plate and the flat plate portion.

[0023] According to the first box support structure of the present invention, a bolt is inserted through a bolt insertion hole provided in the flat plate portion and screwed into the fixing hole, thereby pulling the insertion plate toward the flat plate portion and clamping the lip of the pillar material between the flat plate portion and the insertion plate, thereby fixing the horizontal rail to the pillar material, making it possible to adjust the vertical position of the horizontal rail.

[0024] According to the second box support structure of the present invention, the flat plate portion has a column fixing portion in which a bolt insertion hole is provided, and a rail extension portion from which a horizontal rail extends, and the column fixing portion and the rail extension portion are formed adjacent to each other vertically, so that the horizontal rail does not get in the way when fixing the flat plate portion of the column material, improving workability. [Brief description of the drawings]

[0025] [Figure 1] 1 is an exploded perspective view illustrating the external configuration of a box support structure using a box support tool of the present invention. [Diagram 2] FIG. 2 is a perspective view illustrating the external configuration of the box. [Diagram 3] FIG. 4 is a perspective view illustrating the external configuration of a plate. [Figure 4] FIG. 11 is a cross-sectional view illustrating a state in which the plate is fixed to the box. [Diagram 5] FIG. 4 is a perspective view illustrating the external configuration of a connecting fitting. [Figure 6] FIG. 4 is a perspective view illustrating the external configuration of the horizontal rail. [Figure 7] FIG. 4 is a perspective view illustrating the external configuration of an insertion plate and a pressing plate. [Figure 8] A horizontal cross-sectional view illustrating the state in which the pillar fixing portion of the fixing portion of the horizontal rail is fixed to the pillar material. [Figure 9] 1 is a side view illustrating the state in which a horizontal rail is fixed to a pillar material that does not have an open groove, such as a square timber or square steel pipe. [Figure 10] 1 is a side view illustrating the state in which a horizontal rail is fixed to a pillar material that does not have an open groove, such as a square timber or square steel pipe. [Figure 11]A diagram illustrating the state in which the horizontal rail is fixed to the wall material side and the opposite side of the box using connecting fittings. [Figure 12] 13 is a diagram illustrating the state in which the box support structure is completed by driving the plate fixing screws, which serve as a regulating means, into the wall material. [Figure 13] This figure explains the state in which a retaining portion fixing screw, which serves as a regulating means, is inserted through the bottom portion of the rail retaining portion of the connecting fitting and into the horizontal rail, instead of using a plate fixing screw, to complete the box support structure. [Figure 14] 13 is a perspective view illustrating the external configuration of a connecting fitting of a box support according to a modified embodiment. FIG. [Figure 15] 13A and 13B are diagrams illustrating the state in which a box and a horizontal rail are fixed together using connecting fittings of a box support of a modified embodiment. [Figure 16] 13A and 13B are diagrams illustrating the state in which a box and a horizontal rail are fixed together using connecting fittings of a box support of a modified embodiment. [Figure 17] 13A and 13B are diagrams illustrating the box support structure of the modified embodiment in a completed state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an embodiment of the box support 1 and the box support structure 2 of the present invention will be described with reference to the drawings. The box support 1 is a member that supports the box 4 arranged on the back surface of the wall material 3 at a desired position. A wall is formed by arranging pillars and beams between two wall materials 3 that are erected in parallel with a gap between them, and the box 4 and the box support 1 are arranged inside the wall between the two wall materials 3 and on the back surface of one of the wall materials 3. The wall material 3 on the back surface of which the box 4 is arranged is a wall material 3 that forms the surface of a wall that requires fire resistance, such as an exterior wall or a partition wall, and has an opening 30 for drawing out a cable wired inside the wall body to the outside of the wall body. The wall material 3 is not limited to this, and may be a wall material 3 that forms the surface of a partition wall. Although not shown in the drawing, a fireproof sleeve is arranged in the opening 30 to ensure the fire resistance of the opening 30. The back surface of the wall material 3 refers to the surface of the wall material 3 that faces the inside of the wall body.

[0027] As shown in FIG. 2, the box 4 is made of steel and has a hollow rectangular parallelepiped shape, and each surface is formed with an opening hole 40 through which a cable can be inserted. A threaded plate fixing hole 41 for fixing the plate 5 is provided on the surface of the box 4 facing the wall material 3. As shown in FIG. 3, the plate 5 is a rectangular flat plate made of steel and has a rectangular hole 50 in the center. The plate 5 also has a box fixing hole 52 for fixing the plate to the box and a wall material fixing hole 53 for fixing the plate to the wall material 3. As shown in FIG. 1 and FIG. 4, the plate 5 is abutted against the surface of the box 4 facing the wall material 3, and is fixed by the screw 51 screwed into the plate fixing hole 41 so as to protrude from the box 4 in a brim-like shape.

[0028] As shown in Figure 1, the box support 1 comprises a horizontal rail 6 having one end fixed to a pillar material 7 and extending horizontally parallel to the wall material 3, a connecting fitting 8 connecting the box 4 to the horizontal rail 6, and a regulating means 9 regulating the movement of the connecting fitting 8 or the box 4 along the horizontal rail 6.

[0029] As shown in FIG. 5, the horizontal rail 6 has a flat plate portion 60 that abuts against the side surface of the pillar 7 and a rail body 61 that extends from the flat plate portion 60. The flat plate portion 60 and the rail body 61 are integrally formed, and the rail body 61 is formed to protrude in a horizontal direction perpendicular to the flat plate portion 60. The flat plate portion 60 has a pillar fixing portion 62 that is fixed to the pillar 7, and a rail extension portion 63 from which the rail body 61 extends in the horizontal direction. The pillar fixing portion 62 is flat and has a screw insertion hole 65 into which a fixing screw 64 that can be driven into the pillar 7 can be inserted, and a bolt insertion hole 66 into which a bolt 72 that can be screwed into a fixing hole 70 disposed inside the pillar 7 can be inserted. The bolt insertion hole 66 is formed in the center of the pillar fixing portion 62, and the screw insertion holes 65 are disposed on the left, right, and upper sides of the bolt insertion hole 66, respectively. The pillar fixing portion 62 and the rail extending portion 63 are formed adjacent to each other vertically, so that the rail main body 61 does not get in the way when fixing the pillar fixing portion 62 to the pillar.

[0030] The rail body 61 is formed in a groove shape with a vertical flat plate extending horizontally and parallel ribs extending vertically, and a long hole 67 perpendicular to the length of the rail body 61 is provided in the middle of the rail body 61 so that the rail body 61 can be easily cut at the middle. The rail body 61 has four long holes 67 connected in a row to form a portion that is easy to cut, and one rail body 61 has two portions where the long holes 67 are connected in a row to make it easy to cut. Depending on the position where the box 4 is installed on the back surface of the wall material 3, the unnecessary portion of the rail body 61 can be cut off, improving workability.

[0031] 6, the connecting fitting 8 has a fixing portion 80 which is fixed in contact with the surface of the box 4 opposite to the surface facing the wall material 3, and a rail holding portion 81 which supports the horizontal rail 6 by pressing it against the box 4 side of the rail body 61 of the horizontal rail 6. The fixing portion 80 is made of metal in the shape of a rectangular flat plate, and is provided with a fitting fixing hole 83 into which a fastener 82 can be inserted for fixing the connecting fitting 8 to the box 4. The rail holding portion 81 is formed integrally with the fixing portion 80, and is formed in a groove shape having an upper horizontal portion 84 facing the top surface of the horizontal rail 6, a lower horizontal portion 85 facing the bottom surface of the horizontal rail 6, and a bottom portion 86 connecting the upper horizontal portion 84 and the lower horizontal portion 85. The length β of the upper horizontal portion 84 and the lower horizontal portion 85 in the direction protruding from the bottom surface portion 86 is formed to be equal to or less than the thickness α of the rail body 61 of the horizontal rail 6, and when the fixing portion 80 is fixed in contact with the surface of the box 4 opposite to the wall material 3 side, the bottom surface portion 86 of the rail holding portion 81 is pressed against the rail body 61 of the horizontal rail 6, pressing the horizontal rail 6 toward the box 4. As a result, the horizontal rail 6 is fixed to the box 4 via the connecting fitting 8. At this time, the connecting fitting 8 is fixed only by the rail holding portion 81 being pressed against the rail body 61 of the horizontal rail 6, so that by slightly loosening the fastener 82 of the fixing portion 80, the connecting fitting 8 becomes movable along the horizontal rail 6, and the box 4 fixed to the connecting fitting 8 also becomes movable along the horizontal rail 6, so that the horizontal position of the box 4 can be easily adjusted.

[0032] As shown in Fig. 4, a plate 5 is fixed to the box 4 fixed to the horizontal rail 6 and protrudes from the box 4 like a brim. Then, as shown in Fig. 12, the plate 5 abuts against the wall material 3 and a plate fixing screw 90 penetrates the plate 5 and is driven into the wall material 3, thereby fixing the box 4 and the wall material 3 to each other. In this embodiment, the "restraining means" of the present invention corresponds to the plate fixing screw 90 that penetrates the plate 5 and is driven into the wall material 3.

[0033] As described above, in the box support structure 2 using the box support 1 of this embodiment, the box 4 is fixed to the wall material 3 and also to the horizontal rail 6, so that even if one of the fixations loosens for some reason, there is no problem of the box 4 falling off.

[0034] The box support structure 2 is a structure having a box support 1, a pillar material 7 to which the box support 1 is fixed, and a wall material 3. The pillar material 7 in this embodiment is a lip channel steel. The structure for fixing the pillar fixing part 62 of the flat part 60 of the horizontal rail 6 to the pillar material 7 includes an insertion plate 71 inserted into the pillar material 7, a flat pressure plate 73 abutting against the surface of the flat part 60 opposite to the pillar material 7, and bolts 72 for fixing the insertion plate 71, the flat part 60, and the pressure plate 73 to the pillar material 7, as shown in Figs. 1, 7, and 8.

[0035] The insertion plate 71 is formed so that when it is held so that the vertical direction is long, the horizontal direction is shorter than the opening width of the lip channel steel, and when it is held so that the horizontal direction is long, the horizontal direction is longer than the opening width of the lip channel steel. Therefore, the insertion plate 71 is held in a position where the vertical direction is long and inserted into the inside of the lip channel steel, and the insertion plate 71 is rotated inside the lip channel steel and held in a position where the horizontal direction is long, thereby maintaining the state where the insertion plate 71 is inserted into the inside of the lip channel steel. The insertion plate 71 is formed with a fixing hole 70 into which a bolt 72 can be screwed.

[0036] The pressure plate 73 is provided with a through hole 74 through which the bolt 72 can be inserted, and the bolt 72 is screwed into the fixing hole 70 of the insertion plate 71 through the through hole 74 and the bolt insertion hole 66 formed in the column fixing part 62 of the flat plate part 60 of the horizontal rail 6, thereby pressing the pressure plate 73 and the column fixing part 62 in a direction approaching the insertion plate 71, and the lip of the column material 7 is sandwiched between the insertion plate 71 and the column fixing part 62, thereby fixing the horizontal rail 6 to the column material 7. The pressure plate 73 is formed with a bent part 75 at the upper end that bends toward the column material 7. The bent part 75 is formed to be shorter than the opening width of the column material 7, and the bent part 75 is inserted between the lips of the column material 7, so that the pressure plate 73 can be prevented from rotating together with the bolt 72 when the bolt 72 is fastened to the fixing hole 70 of the insertion plate 71.

[0037] Since the flat plate portion 60 has the column fixing portion 62 and the rail extension portion 63 formed adjacent to each other vertically, the rail main body 61 does not get in the way when screwing the bolt 72 through the through hole 74 of the pressure plate 73 and the bolt insertion hole 66 of the horizontal rail 6 into the fixing hole 70 of the insertion plate 71, thereby improving workability.

[0038] The column material 7 is not limited to lip channel steel, and may be, for example, wooden square timber or square steel pipe. When the horizontal rail 6 is fixed to the column material 7 that does not have an opening groove formed therein, such as square timber or square steel pipe, or when the horizontal rail 6 is fixed to the surface opposite to the opening groove of lip channel steel, as shown in Figs. 9 and 10, the flat plate portion 60 is abutted against the side of the column material 7, and the fixing screw 64 is inserted into the screw insertion hole 65 formed in the column fixing portion 62 of the flat plate portion 60, and the fixing screw 64 is driven into the column material 7, thereby fixing the horizontal rail 6 to the column material 7. In this way, the column fixing portion 62 of the flat plate portion 60 has a bolt insertion hole 66 for fixing the horizontal rail 6 to the column material 7 when the column material 7 is lip channel steel, and a screw insertion hole 65 for fixing the horizontal rail 6 to the column material 7 when the column material 7 is square timber or square steel pipe, so that the horizontal rail 6 can be fixed regardless of the shape of the column material 7.

[0039] When constructing the box support structure 2, the horizontal rail 6 is fixed to the pillar material 7 as shown in Figures 1 and 8, or Figure 10, and then, as shown in Figure 11, the box 4 is abutted against the rail body 61 of the horizontal rail 6, and the fastener 82 is inserted into the fitting fixing hole 83 of the fixing portion 80 of the connecting fitting 8 and screwed into the box 4 to tighten it, thereby pressing the horizontal rail 6 toward the box 4 with the rail holding portion 81 of the connecting fitting 8, and fixing the horizontal rail 6 and box 4 via the connecting fitting 8. At this time, if the horizontal rail 6 is fixed to the pillar material 7 by clamping the lip of the lip-channel steel pillar material 7 between the insertion plate 71 and the pillar fixing part 62, the horizontal rail 6 can be adjusted in the vertical position by loosening the bolt 72, and the box 4 and the connecting fitting 8 can be adjusted in the horizontal position relative to the rail body 61 of the horizontal rail 6 by loosening the fastener 82 that fixes the connecting fitting 8 to the box 4, so that the box 4 can be positioned at the position of the opening 30 provided in the wall material 3, and the position can be adjusted vertically and horizontally.

[0040] Then, as shown in FIG. 12, the plate 5 fixed to the box 4 is abutted against the wall material 3, and a plate fixing screw 90 is driven into the wall material 3 through the plate 5 at the portion of the plate 5 that protrudes from the box 4 like a brim, thereby fixing the box 4 and the wall material 3 to each other.

[0041] In this embodiment, the box 4 is fixed to the wall material 3 via the plate 5 by a plate fixing screw 90, and the plate fixing screw 90 is the restricting means 9 in the present invention, but the restricting means 9 of the present invention is not limited to this. As shown in Fig. 13, the restricting means 9 may be a retaining part fixing screw 91 that penetrates the bottom surface part 86 of the rail retaining part 81 of the connecting fitting 8 and is driven into the horizontal rail 6. This makes it possible to simply and reliably restrict the horizontal movement of the connecting fitting 8 and the box 4 fixed to the connecting fitting 8, and also makes it possible to easily adjust the horizontal positions of the connecting fitting 8 and the box 4 by removing the retaining part fixing screw 91.

[0042] The connecting fitting 8 is not limited to the above embodiment. As shown in Fig. 14, the connecting fitting 8 in the modified embodiment has a fixing portion 80 that is fixed in contact with the surface of the box 4 opposite to the surface on the wall material 3 side, and a rail holding portion 81 that is pressed against the surface of the horizontal rail 6 opposite to the box 4 to press the horizontal rail 6 toward the box 4. The fixing portion 80 is a rectangular flat metal member arranged between the horizontal rail 6 and the box 4, and is provided with a fitting fixing hole 83 into which a fastener 82 for fixing the connecting fitting 8 to the box 4 can be inserted. The rail holding portion 81 has a protrusion 87 that protrudes from the fixing portion 80 adjacent to one of the upper and lower surfaces of the horizontal rail 6, a hook portion 88 that is formed adjacent to the other of the upper and lower surfaces of the horizontal rail 6, wrapping around the surface of the horizontal rail 6 opposite to the box 4, and has a screw hole 89 formed therein, and a fixing screw 11 that is screwed into the screw hole 89 and has a tip that is pressed against the surface of the horizontal rail 6 opposite to the box 4. In this embodiment, the hook portion 88 is provided so as to protrude from the upper edge of the fixing portion 80 , and the protrusion portion 87 is provided so as to protrude from the lower edge of the fixing portion 80 .

[0043] The work of fixing the box 4 to the horizontal rail 6 involves first abutting the fixing portion 80 of the connecting fitting 8 against the surface of the box 4 opposite to the surface facing the wall material 3, inserting the fastener 82 into the fitting fixing hole 83, and tightening the fastener 82 with a nut from the back side of the box 4 to fix the box 4 to the connecting fitting 8. Next, the rail body 61 of the horizontal rail 6 is inserted into the connecting fitting 8, and the hook portion 88 of the connecting fitting 8 is hooked onto the rail body 61, thereby temporarily fixing the box 4 fixed to the connecting fitting 8 to the horizontal rail 6. Then, after adjusting the position of the box 4, as shown in FIG. 16, the fixing screw 11 is screwed into the screw hole 89 of the hook portion 88 and tightened, and the tip of the fixing screw 11 is pressed against the surface of the horizontal rail 6 opposite to the box 4, thereby fixing the horizontal rail 6 to the connecting fitting 8 and fixing the horizontal rail 6 to the box 4. Thereafter, as in the above-described embodiment, the flat portion 60 of the horizontal rail 6 is fixed to the pillar material 7, and as shown in FIG. 17, the plate 5 fixed to the box 4 is fixed to the wall material 3, thereby completing the box support structure 2.

[0044] As described above, in the box support structure 2 using the connecting fittings 8 of the modified embodiment, the box 4 can be temporarily positioned on the horizontal rail 6, and then the fixing screws 11 are screwed into the screw holes 89 formed in the hook portions 88 and tightened, so that the tips of the fixing screws 11 are pressed against and fixed to the horizontal rail 6, and therefore the box 4 can be positioned and then fixed with the fixing screws 11, improving workability. Furthermore, when the box 4 and the connecting fittings 8 are fixed and then the connecting fittings 8 are fixed to the horizontal rail 6, the connecting fittings 8 can be hooked and fixed from any position in the length direction of the horizontal rail 6, so that work can be easily performed even when the box 4 is already fixed to the wall material 3.

[0045] It goes without saying that the embodiment of the present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate without departing from the scope of the concept of the present invention.

[0046] <First feature> The first box support 1 of this embodiment is a box support 1 for supporting a box 4 and fixing it to the back surface of a wall material 3, and is characterized in that it has a horizontal rail 6 having one end fixed to a pillar material 7 and extending horizontally parallel to the wall material 3, a fixing part 80 that abuts and is fixed to the face of the box 4 opposite the face of the wall material 3, and a rail retaining part 81 that presses the horizontal rail 6 against the face of the horizontal rail 6 opposite the box 4, thereby pressing the horizontal rail 6 against the box 4, and is equipped with a connecting fitting 8 that is movable along the horizontal rail 6, and a regulating means 9 that regulates the movement of the connecting fitting 8 or the box 4 along the horizontal rail 6.

[0047] According to the first box support 1 of this embodiment, the rail holding portion 81 is pressed against the horizontal rail 6, thereby fixing the connecting fitting 8 to the horizontal rail 6, and the fixing portion 80 is fixed to the box 4, thereby fixing the connecting fitting 8 to the box 4, so that the horizontal rail 6 and the box 4 can be fixed via the connecting fitting 8. When the pressure of the rail holding portion 81 against the horizontal rail 6 is released, the connecting fitting 8 and the box 4 can slide along the horizontal rail 6, facilitating horizontal position adjustment during installation, and the provision of the restricting means 9 makes it possible to restrict unintended movement of the connecting fitting 8 and the box 4 along the horizontal rail 6 after installation.

[0048] <Second feature> The second box support 1 of this embodiment has, in addition to the features of the first box support 1, the fixing portion 80 is fixed to the box 4 by a fastener 82 which penetrates the fixing portion 80 and is fixed to the surface of the box 4 opposite to the surface facing the wall material 3.

[0049] According to the second box support 1 of this embodiment, the fixing part 80 is fixed to the box 4 by a fastener 82 which penetrates the fixing part 80 and is fixed to the face of the box 4 opposite the wall material 3 side. Therefore, the work of fixing the fixing part 80 to the box 4 is carried out from the side opposite the wall material 3 side. Therefore, even when the work of fixing the box 4 to the horizontal rail 6 is carried out after the wall material 3 has been constructed, the wall material 3 does not get in the way and the work can be easily carried out.

[0050] <Third feature> The third box support 1 of this embodiment has, in addition to the features of the first or second box support 1, the rail retaining portion 81 is formed integrally with the fixed portion 80, and is formed in a groove shape having an upper horizontal portion 84 facing the upper surface of the horizontal rail 6, a lower horizontal portion 85 facing the lower surface of the horizontal rail 6, and a bottom surface portion 86 connecting the upper horizontal portion 84 and the lower horizontal portion 85, and the length β of the upper horizontal portion 84 and the lower horizontal portion 85 in the direction protruding from the bottom surface portion 86 is less than or equal to the thickness α of the horizontal rail 6, and the bottom surface portion 86 is pressed against the surface of the horizontal rail 6 opposite the box 4.

[0051] According to the third box support 1 of this embodiment, the rail retaining portion 81 is formed in a groove shape having an upper horizontal portion 84, a lower horizontal portion 85, and a bottom portion 86, and is formed integrally with the fixed portion 80, and the length of the upper horizontal portion 84 and the lower horizontal portion 85 protruding from the bottom portion 86 is less than the thickness of the horizontal rail 6. Therefore, by simply fixing the fixed portion 80 to the box 4, the bottom portion 86 of the rail retaining portion 81 can be pressed against the horizontal rail 6, thereby reducing the construction effort.

[0052] <Fourth feature> The fourth box support 1 of this embodiment is characterized in that, in addition to the features of any of the first to third box supports 1, the regulating means 9 is a screw that penetrates the bottom portion 86 and is driven into the horizontal rail 6.

[0053] In the fourth box support 1 of this embodiment, the regulating means 9 is a screw that penetrates the bottom portion 86 and is driven into the horizontal rail 6, so that the horizontal movement of the connecting fitting 8 and the box 4 fixed to the connecting fitting 8 can be simply and reliably regulated, and the horizontal position of the connecting fitting 8 and the box 4 can be easily adjusted by removing the screw.

[0054] <Fifth feature> The fifth box support 1 of this embodiment is characterized in that, in addition to the features of the first or second box support 1, the fixing portion 80 is a flat member arranged between the horizontal rail 6 and the box 4, and the rail retaining portion 81 has a protrusion 87 protruding from the fixing portion 80 so as to be adjacent to one of the upper and lower surfaces of the horizontal rail 6, a hook portion 88 formed adjacent to the other of the upper and lower surfaces of the horizontal rail 6, wrapping around to the surface of the horizontal rail 6 opposite the box 4, and having a screw hole 89 formed therein, and a fixing screw 11 screwed into the screw hole 89 and whose tip is pressed against the surface of the horizontal rail 6 opposite the box 4.

[0055] According to the fifth box support 1 of this embodiment, a protruding portion 87 is formed on either the top or bottom, and a hook portion 88 is formed on the other. With the fixing portion 80 fixed to the box 4, the horizontal rail 6 is sandwiched between the protruding portion 87 and the hook portion 88 of the rail holding portion 81, so that the box 4 can be temporarily positioned on the horizontal rail 6. Then, the fixing screw 11 is screwed into the screw hole 89 formed in the hook portion 88 and tightened, so that the tip of the fixing screw 11 is pressed against the horizontal rail 6 and fixed. Therefore, after positioning the box 4, it can be fixed with the fixing screw 11, improving workability. When the connecting fitting 8 is fixed to the horizontal rail 6 after the box 4 and the connecting fitting 8 are fixed, the connecting fitting 8 can be hooked and fixed from any position in the length direction of the horizontal rail 6, so that even if the box 4 is already fixed to the wall material 3, the box 4 can be easily installed.

[0056] <Sixth feature> The sixth box support 1 of this embodiment has, in addition to the features of any of the first to fifth box supports 1, a plate 5 fixed to the face of the box 4 facing the wall material 3 so as to protrude from the box 4 like a brim, and the regulating means 9 is a screw that penetrates the plate 5 and is driven into the wall material 3.

[0057] In the sixth box support 1 of this embodiment, the portion of the plate 5 that protrudes from the box 4 is penetrated and screws are driven into the wall material 3 to restrict the horizontal movement of the box 4. Since the horizontal rail 6 and the box 4 are fixed using connecting fittings 8 and the box 4 is also fixed to the wall material 3, the box 4 is doubly fixed, and a fail-safe design can be achieved in which even if one of the fixations loosens for some reason, the box 4 will not fall off.

[0058] <Seventh feature> The seventh box support 1 of this embodiment is characterized in that, in addition to the features of the first to sixth box supports 1, the horizontal rail 6 has a flat plate portion 60 at the end on the pillar material 7 side that abuts the surface of the pillar material 7 on the horizontal rail 6 side, and the flat plate portion 60 has a screw insertion hole 65 into which a fixing screw 64 that can be driven into the pillar material 7 can be inserted, and a bolt insertion hole 66 into which a bolt 72 that can be screwed into a fixing hole 70 arranged inside the pillar material 7 can be inserted.

[0059] According to the seventh box support 1 of this embodiment, the flat portion 60 formed at the end of the horizontal rail 6 on the pillar material 7 side has a screw insertion hole 65 into which a fixing screw 64 that can be driven into the pillar material 7 can be inserted, and a bolt insertion hole 66 into which a bolt 72 that can be screwed into a fixing hole 70 arranged inside the pillar material 7 can be inserted. Therefore, when the pillar material 7 is, for example, a square timber or a square steel pipe, the horizontal rail 6 can be fixed by driving the fixing screw 64 into the screw insertion hole 65. Furthermore, when the pillar material 7 is, for example, a lip channel steel, an insertion plate 71 of a size that will catch on the lip can be placed inside the pillar material 7, and the bolt 72 inserted into the bolt insertion hole 66 can be screwed into the fixing hole 70 of the insertion plate 71, thereby sandwiching and fixing the lip of the lip channel steel between the insertion plate 71 and the flat portion 60.

[0060] <Eighth characteristic> The first box support structure 2 of this embodiment is a box support structure 2 using any of the first to seventh box supports 1 of this embodiment, wherein the horizontal rail 6 has a flat plate portion 60 at the end on the column material 7 side that abuts the surface of the column material 7 on the horizontal rail 6 side, the column material 7 is a lip channel steel, and an insertion plate 71 is provided inside the column material 7, which is formed in a plate shape longer than the opening width of the column material 7 and has a fixing hole 70 into which a bolt 72 can be screwed, and the bolt 72 inserted through a bolt insertion hole 66 provided in the flat plate portion 60 is screwed into the fixing hole 70, thereby drawing the insertion plate 71 toward the flat plate portion 60, and the lip of the column material 7 is clamped between the flat plate portion 60 and the insertion plate 71, thereby fixing the horizontal rail 6 to the column material 7.

[0061] According to the first box support structure 2 of this embodiment, the bolt 72 inserted through the bolt insertion hole 66 provided in the flat plate portion 60 is screwed into the fixing hole 70, thereby pulling the insertion plate 71 toward the flat plate portion 60 and clamping the lip of the pillar material 7 between the flat plate portion 60 and the insertion plate 71, thereby fixing the horizontal rail 6 to the pillar material 7, making it possible to adjust the vertical position of the horizontal rail 6.

[0062] <Ninth characteristic> The second box support structure 2 of this embodiment is characterized in that, in addition to the features of the first box support structure 2, the flat plate portion 60 has a column fixing portion 62 in which the bolt insertion hole 66 is provided, and a rail extension portion 63 from which the horizontal rail 6 extends, and the column fixing portion 62 and the rail extension portion 63 are formed adjacent to each other vertically.

[0063] According to the second box support structure 2 of this embodiment, the flat plate portion 60 has a column fixing portion 62 in which a bolt insertion hole 66 is provided, and a rail extension portion 63 from which the horizontal rail 6 extends, and the column fixing portion 62 and the rail extension portion 63 are formed adjacent to each other vertically, so that the horizontal rail 6 does not get in the way when fixing the flat plate portion 60 of the column material 7, improving workability. [Industrial Applicability]

[0064] The box support and box support structure according to this embodiment are suitable as a box support and box support structure for supporting a box on the back surface of a wall material having an opening in a fire-resistant wall structure. [Explanation of symbols]

[0065] 1 Box Support 2 Box support structure 3. Wall Materials 4. Box 5 Plate 6 Horizontal Rails 7 Pillar material 8 Connection fittings 9. Regulatory measures 60 Flat plate part 62 Pillar fixing part 63 Rail extension 80 Fixed part 81 Rail holding part 82 Fasteners 90 Plate fixing screw (regulating means) 91 Retaining part fixing screw (regulating means)

Claims

1. A box support for supporting a box and fixing it to the back surface of a wall material, A horizontal rail having one end fixed to the column and extending in a horizontal direction parallel to the wall material; a connecting fitting having a fixing portion that is fixed to the surface of the box opposite to the surface of the wall material side, and a rail holding portion that is in pressure contact with the surface of the horizontal rail opposite to the box side to press the horizontal rail against the box side, the connecting fitting being movable along the horizontal rail; A restricting means for restricting movement of the connecting fitting or the box along the horizontal rail; A box support comprising:

2. The box support according to claim 1 , wherein the fixing portion is fixed to the box by a fastener that passes through the fixing portion and is fixed to a surface of the box opposite to the surface of the box facing the wall material.

3. the rail holding portion is integrally formed with the fixing portion, and is formed in a groove shape having an upper horizontal portion facing the upper surface of the horizontal rail, a lower horizontal portion facing the lower surface of the horizontal rail, and a bottom portion connecting the upper horizontal portion and the lower horizontal portion; the upper horizontal portion and the lower horizontal portion have a length in a direction protruding from the bottom surface portion that is equal to or less than a thickness of the horizontal rail, 3. The box support according to claim 2, wherein the bottom surface portion is in pressure contact with a surface of the horizontal rail opposite the box.

4. 4. The box support according to claim 3, wherein the restricting means is a screw which penetrates the bottom portion and is driven into the horizontal rail.

5. the fixing portion is a flat plate-like member disposed between the horizontal rail and the box, The rail holding portion is a protrusion protruding from the fixed portion adjacent to one of an upper surface and a lower surface of the horizontal rail; a hook portion formed adjacent to the other of the upper and lower surfaces of the horizontal rail, wrapping around the surface of the horizontal rail opposite the box, and having a screw hole; A fixing screw that is screwed into the screw hole and has a tip that is in pressure contact with a surface of the horizontal rail opposite to the box; 3. The box support of claim 2, further comprising:

6. A plate is fixed to a surface of the box facing the wall material so as to protrude from the box in a flange-like shape, 6. The box support according to claim 3, wherein the restricting means is a screw which penetrates the plate and is driven into the wall material.

7. The horizontal rail has a flat plate portion at an end portion on the pillar side that abuts against a side surface of the pillar, A box support as described in claim 3 or claim 5, characterized in that the flat plate portion has a screw insertion hole into which a fixing screw that can be driven into the pillar material can be inserted, and a bolt insertion hole into which a bolt that can be screwed into a fixing hole arranged inside the pillar material can be inserted.

8. A box support structure using the box support tool according to claim 3 or 5, The horizontal rail has a flat plate portion at an end portion on the pillar side that abuts against a surface of the pillar on the horizontal portion side, The pillar is a lip groove steel, and an insertion plate is provided inside the pillar, the insertion plate being formed in a plate shape longer than the opening width of the pillar and having a fixing hole into which a bolt can be screwed; A box support structure characterized by the fact that the bolt inserted through the bolt insertion hole provided in the flat plate portion is screwed into the fixing hole, thereby pulling the insertion plate to the flat plate portion, clamping the lip of the pillar material between the flat plate portion and the insertion plate, and fixing the horizontal rail to the pillar material.

9. The flat plate portion has a column fixing portion in which the bolt insertion hole is provided and a rail extension portion from which the horizontal rail extends, The box support structure according to claim 8 , wherein the column fixing portion and the rail extending portion are formed adjacent to each other vertically.

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