Rod-shaped support device and wiring box installation device

Abstract

The present invention provides a rod-shaped support device that improves work efficiency in the installation of rod-shaped bodies on a pair of columns erected at a distance from each other. [Solution] The rod-shaped support device is configured to support a rod-shaped body that is erected between a pair of columns spaced apart. The rod-shaped support device comprises a pair of fixed bodies that are fixed to each of the pair of columns. Each fixed body comprises a fixing part that can be fixed to the column and a support part that supports the rod-shaped body. The support part is configured to hook onto and support the end of the rod-shaped body, which is lowered in a substantially horizontal position, while the fixed body is firmly attached to the column.

Description

Technical Field

[0001] The present invention relates to a rod-shaped body supporting device for supporting and bridging a rod-shaped body between a pair of spaced-apart upright columns.

Background Art

[0002] Conventionally, various devices have been used for installing a wiring box by bridging and supporting a rod-shaped body such as a long bolt on a pair of spaced-apart columns in a space behind a wall or the like.

[0003] For example, Patent Document 1 discloses a bolt support for supporting the end of a long bolt installed between studs and fixing the end to the stud. In the following paragraph, the reference numerals of Patent Document 1 are shown in parentheses. The bolt support (10) comprises a rectangular plate-shaped fixing portion (11) and a rectangular plate-shaped support portion (12) extending from a first short side (11a) which is one end of the fixing portion (11) in the direction of its long side, and is formed in a substantially L-shape overall. The support portion (12) extends perpendicular to the fixing portion (11). Therefore, when the fixing portion (11) is fixed with its back surface in contact with the lip portion (11d) of the lightweight steel member (11), the support portion (12) extends in the direction in which the long bolt (V) is installed. A bolt support portion (22) which is substantially U-shaped is formed on the surface of the support portion (12). The bolt support portion (22) has a recessed storage groove (23) that extends along the erection direction and can accommodate a long bolt (V). Furthermore, the bolt support portion (22) has a screw threading portion (29) that guides the screw (40) so that the shaft portion (41) of the screw (40) protrudes into the storage groove (23) as the screw (40) is screwed in along a direction perpendicular to the erection direction. The screw threading portion (29) is formed in a position where the shaft portion (41) is screwed in so that the opening width of the storage groove (23) becomes smaller than the diameter of the long bolt (V). To support the end of the long bolt (V) on the lightweight steel section (11) using the bolt support (10), both ends of the long bolt (V) are stored in the storage groove (23) of the bolt support (10). With both ends of the long bolt (V) supported by the bolt support parts (22) of both bolt supports (10), a screw (40) is forcibly screwed into the screw threading part (29) using a screwdriver (tool) so that the head of the screw (40) comes into contact with the inner bottom surface of the receiving recess (27a) and the head is housed within the receiving recess (27a). As a result, the shaft part (41) of the screw (40) engages with the circumferential surface of the long bolt (V), and the circumferential surface of the long bolt (V) is pressed by the screw (40) toward the inner surface of the bolt support part (22). Consequently, the long bolt (V) is erected between the lightweight steel members (11) by the pair of bolt supports (10), and both ends of the long bolt (V) are fixed to the lightweight steel members (11) by each bolt support (10).Then, the wiring box (B) is fixed to the long bolt (V) via a fixing bracket (K) provided on the outer surface of the bottom plate of the wiring box (B).

[0004] Furthermore, for means of fixing the wiring box to a rod-shaped body such as a long bolt, please refer to Patent Document 2. Specifically, Patent Document 2 discloses a wiring box that is fixed by screws to fixing bolts provided inside a building. Hereafter in the paragraph, the reference numerals of Patent Document 2 are shown in parentheses. In the box body (11) of the wiring box (10), a groove-forming wall (20) is formed in the center of the bottom wall (12), with a part of the bottom wall (12) bulging inward toward the inside of the box body (11). The groove-forming wall (20) is formed such that the entire left-right direction of the central part of the bottom wall (12) is recessed toward the inside of the box body (11) from the outer surface of the bottom wall (12). At the lower part of the groove-forming wall (20), circular screw holes (24) are formed at positions on both sides in the longitudinal direction of the groove-forming wall (20), and each screw hole (24) opens toward the space surrounded by the groove-forming wall (20), i.e., the bolt storage groove (21). Then, a screw (25) for fixing the wiring box (10) to the fixing bolt (B) is forcibly screwed into each screw hole (24). To fix the wiring box (10) to the fixing bolt (B), the fixing bolt (B) is inserted into the bolt storage groove (21) from the outer side of the bottom wall (12). Next, each screw (25) that protrudes from the cover opening (31) of the wiring box cover (30) to the outside of the box body (11) is screwed into the screw hole (24), and the screws (25) are screwed into the screw screwing space (S). Once the screws (25) are screwed into the screw screwing space (S), the threads (25a) press against the circumferential surface of the fixing bolt (B) and screw in while biting into the inner surface of the guide groove (20a). Then, once the screw (25) is screwed into the screw insertion space (S), the threads (25a) of the screw (25) engage with the circumferential surface of the fixing bolt (B) and the inner surface of the guide groove (20a), and the fixing bolt (B) is sandwiched between the screw (25) and the wall surface of the groove forming wall (20). As a result, the wiring box (10) is fixed to the fixing bolt (B). [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Patent No. 5009320 [Patent Document 2] Patent No. 5026349 [Overview of the project] [Problems that the invention aims to solve]

[0006] The bolt support device (rod-shaped support device) described in Patent Document 1 supports a long bolt by storing the end of the long bolt in a storage groove of the bolt support device, and then rotating and screwing in the screw to press the screw shaft against the circumferential surface of the long bolt. However, this operation of rotating and screwing in the screw is cumbersome, and a problem arises in that it reduces work efficiency when installing bolts on a pair of columns.

[0007] The present invention was made to solve the above problems, and its objective is to provide a rod-shaped support device that improves the workability in the installation of rod-shaped bodies on a pair of columns erected at a distance from each other. Furthermore, a further objective of the present invention is to provide a wiring box installation device that improves the workability in the installation of wiring boxes on a pair of columns erected at a distance from each other. [Means for solving the problem]

[0008] (Composition 1) One embodiment of the present invention is a rod-shaped support device that supports a rod-shaped body installed between a pair of columns erected at an interval, The pair of columns is equipped with a pair of fixing bodies, each fixed to the other, The fixing body comprises a fixing portion that can be fixed to the column and a support portion that supports the rod-shaped body. The support portion is characterized in that, while the fixing body is fixed firmly attached to the column, it is configured to hook and support the end of the rod-shaped body that has been lowered in a substantially horizontal position.

[0009] (Configuration 2) A further embodiment of the rod-shaped support device of the present invention is a rod-shaped support device of configuration 1, wherein the support portion is It has an opening at the top, defines an arrangement space in which the rod-shaped body can be placed, and has an upward-facing hook portion that extends in a hook shape to support the rod-shaped body placed in the arrangement space from below, It comprises a pressure contact portion formed at a position offset in the axial direction of the rod-shaped body from the upward hook portion, and which cooperates with the upward hook portion to clamp and hold the rod-shaped body, The upward-facing hook portion is characterized by being composed of at least two hook portions, which are arranged side by side in the axial direction of the rod-shaped body to which it is attached, and which are offset in the direction of clamping.

[0010] (Composition 3) A further embodiment of the present invention is a rod-shaped support device of configuration 1 or 2, wherein the column comprises a bottom wall extending continuously in the vertical direction, a pair of side walls extending from both sides in the width direction of the bottom wall so as to form a substantially U-shaped cross-section, a pair of lip portions provided on the tip side of the pair of side walls and facing each other in the width direction, and an opening formed between the pair of lip portions so as to allow the internal space of the column to face the outside. The first of the pair of fixed bodies is A first base portion is inserted into the internal space through the opening and is provided with the fixing portion, It comprises a first extension portion that extends from the first base portion in a direction away from the column and is provided with the support portion, The fixing portion is characterized by including an internal attachment portion that is attached to the inner surface of the bottom wall or the inner surface of the side wall.

[0011] (Composition 4) A further embodiment of the rod-shaped support device of the present invention, in the rod-shaped support device of configuration 3, further comprises a first positioning part that positions the first fixing body to a first fixed position by contacting the inner surface of the side wall of the column to be fixed, The pair of fixing bodies, of which the second fixing body is, A second base portion extends along the width direction of the column so as to abut against the outer surface of the bottom wall, and the fixing portion is provided so as to be fixed to the column in a state of abutment against the outer surface of the bottom wall, A second extension extending from the second base in a direction away from the column, and the support portion provided therein, The second base is provided on one end in the width direction and, by contacting the outer surface of one of the side walls of the column, positions the second fixing body to the second fixing position, The first and second fixing bodies are fixed to the first and second fixing positions, respectively, and the arrangement spaces of the support portions of the pair of fixing bodies are aligned in a straight line.

[0012] (Composition 5) A further embodiment of the rod-shaped support device of the present invention is a rod-shaped support device of configuration 3 or 4, characterized in that the support portion of the first fixed body has a receiving opening that opens downward, defines an arrangement space in which the rod-shaped body can be placed, and includes a downward-facing hook portion that extends in a hook shape to support the rod-shaped body placed in the arrangement space from below when the first fixed body is inverted vertically.

[0013] (Composition 6) A further embodiment of the rod-shaped body support device of the present invention is a rod-shaped body support device of any configuration 3 to 5, characterized in that the first base of the first fixing body is provided with a rod-shaped body insertion portion that allows the end of the rod-shaped body to be inserted.

[0014] (Composition 7) One embodiment of the present invention is a wiring box installation device that is installed between a pair of columns erected at intervals, Wiring box and A rod-shaped support device according to one of configurations 1 to 6, A rod-shaped body supported by the rod-shaped body support device while being erected between the pair of columns, a box holder attached to the rod-shaped body to hold the wiring box; the box holder includes an attachment portion attached to the rod-shaped body, and a holding portion that holds the wiring box in a state attached to the rod-shaped body; the attachment portion has a receiving opening opened in a predetermined opening direction, defines an arrangement space in which the rod-shaped body can be placed, and includes at least two hook-shaped engaging portions configured to be hooked onto the rod-shaped body placed in the arrangement space; the at least two engaging portions are arranged side by side in the axial direction of the attached rod-shaped body, and are provided offset in a direction orthogonal to both the axial direction of the rod-shaped body and the opening direction.

[0015] (Configuration 8) A wiring box installation apparatus according to one aspect of the present invention is a wiring box installation apparatus installed between a pair of columns erected at an interval, comprising: a box unit including a wiring box, and a rod-shaped body integrated with the wiring box such that end portions protrude from both sides of the wiring box; and the rod-shaped body supporting apparatus according to any one of Configurations 1 to 6, in a state where a pair of fixing bodies are respectively fixed to the pair of columns, both end portions of the rod-shaped body can be hooked onto respective supporting portions of the pair of fixing bodies, and are detachable.

[0016] (Configuration 9) A wiring box installation apparatus according to a further aspect of the present invention is the wiring box installation apparatus according to Configuration 8, wherein the box unit further includes a box holder attached to the rod-shaped body and integrally holding the wiring box relative to the rod-shaped body, the box holder is configured to be assemblable with the wiring box, The rod-shaped body is attached to the rod-shaped body in an assembled state with the box holder and the wiring box, both before and after the rod-shaped body is supported by the rod-shaped body support device, thereby enabling the wiring box and the rod-shaped body to be integrated.

[0017] (Composition 10) A further embodiment of the present invention is a wiring box installation device according to any of configurations 7 to 9, wherein at least one of the pair of fixed bodies has an extension portion that extends in a direction away from the fixed column, and the support portion is provided on the extension portion. The wiring box is characterized in that it can be installed close to the column to a position where it overlaps with the extension in the axial direction without interfering with the extension. [Effects of the Invention]

[0018] According to the rod-shaped support device of configuration 1 described above, each of the pair of fixed bodies fixed to each of the pair of columns is provided with a support part configured to hook and support the end of a rod-shaped body that has been lowered in a substantially horizontal position while the fixed body is firmly attached to the column. In other words, the rod-shaped body can be easily erected between the pair of columns by simply hooking the end of the rod-shaped body onto the support part of each of the pair of fixed bodies from above. Therefore, the rod-shaped support device of the present invention improves the workability in the installation of rod-shaped bodies on a pair of columns erected at a distance from each other.

[0019] With the rod-shaped body support device of configuration 2 described above, in addition to the effects of configuration 1, the rod-shaped body can be inserted into the arrangement space of the upward-facing hook portion through an upward-opening receiving port, and the rod-shaped body can be stably supported by a pair of fixing bodies by pressing the rod-shaped body between the pressing portion, which is formed at a position offset in the axial direction of the rod-shaped body relative to the upward-facing hook portion, and the upward-facing hook portion. Furthermore, by having at least two hook portions, which are set offset in the clamping direction, cooperate to form a narrower arrangement space, the upward-facing hook portion can be pressed more strongly against the rod-shaped body in the arrangement space without narrowing the opening width of each hook portion.

[0020] According to the rod-shaped body support device of configuration 3 described above, in addition to the effects of configuration 1 or 2, the first fixing body can be fixed to a column having a bottom wall, a pair of side walls, a pair of lip portions, and an opening, with the first fixing body inserted into the internal space through the opening. In particular, the first fixing body can be easily fixed to the column by placing the first base of the first fixing body in the internal space of the column through the opening and attaching the internal adhesive portion, which serves as the fixing part, to the inner surface of the bottom wall or side wall. Furthermore, because the first extension portion on which the support portion is provided extends away from the column, it is possible to support the rod-shaped body by the support portion outside the column.

[0021] With the rod-shaped support device of configuration 4 described above, in addition to the effects of configuration 3, it is possible to position and fix the first and second fixing bodies to columns erected with their openings facing the same side in the axial direction. In particular, by bringing the first positioning part into contact with the inner surface of the side wall of the column, the first fixing body can be positioned and fixed to the first fixing position of one column through the opening. Also, by bringing the second positioning part into contact with the outer surface of the side wall of the column, it can be positioned and fixed to the second fixing position of the other column. In other words, by using the first and second positioning parts, it is possible to easily fix the first and second fixing bodies to predetermined positions on a pair of columns. As a result, it becomes possible to support rod-shaped bodies in a linearly aligned arrangement space.

[0022] With the rod-shaped support device of configuration 5 described above, in addition to the effects of configuration 3 or 4, the first fixing body is provided with a downward-facing hook portion that opens downwards, making it possible to use the first fixing body by inverting it vertically, and thus it can accommodate columns erected with different (opening) orientations.

[0023] According to the rod-shaped support device of configuration 6 described above, in addition to the effects of any of configurations 3 to 5, the rod-shaped insertion portion is provided to allow insertion of the end of the rod-shaped body. Therefore, even if the length of the rod-shaped body is somewhat longer than the distance between the pair of columns, the rod-shaped body can be supported between the pair of columns by inserting the end of the rod-shaped body into the rod-shaped insertion portion or by placing the end of the rod-shaped body in the internal space of the columns via the rod-shaped insertion portion. In other words, precise length adjustment of the rod-shaped body becomes unnecessary, improving work efficiency.

[0024] The wiring box installation device of configuration 7 described above can utilize the effects of the rod-shaped support devices of configurations 1 to 6 as a wiring box installation device. Furthermore, the wiring box installation device makes it possible to easily and stably attach the attachment portion of the box holder that holds the wiring box to the rod-shaped body. In particular, the attachment portion can be attached to the rod-shaped body by hooking the hook-shaped attachment portion onto the rod-shaped body and placing it in the arrangement space through the receiving opening. Moreover, at least two attachment portions that are offset in directions perpendicular to both the axial direction and the opening direction cooperate to form a narrower arrangement space, so that the attachment portion can be pressed against the rod-shaped body in the arrangement space without narrowing the opening width of each attachment portion, and the wiring box can be stably attached to the rod-shaped body.

[0025] The wiring box installation device of configuration 8 described above makes it possible to utilize the effects of the rod-shaped support devices of configurations 1 to 6 as a wiring box installation device. Furthermore, by hooking the rod-shaped body, which is integrated with the wiring box as a box unit, onto the support parts of a pair of fixed bodies, the wiring box can be easily installed between a pair of columns. In addition, if the box unit gets in the way of other work, the box unit can be easily removed from the pair of fixed bodies and easily reinstalled.

[0026] According to the wiring box installation device of configuration 9 described above, in addition to the effects of configuration 8, the box unit is provided with a box holder that can be assembled with the wiring box. This makes it possible to integrate the wiring box and the rod-shaped body both before and after the rod-shaped body is supported by the rod-shaped body support device. In other words, the worker can choose to either attach the wiring box and the rod-shaped body to the rod-shaped body support device with the rod-shaped body already integrated, or to attach the wiring box to the rod-shaped body after the rod-shaped body has been installed on the rod-shaped body support device, improving work efficiency regardless of the work procedure.

[0027] With the wiring box installation device of configuration 10 described above, in addition to the effects of configurations 7 and 8, the wiring box does not interfere with the extension of the fixed body, so the wiring box can be installed close to the column to a position where it overlaps with the extension in the axial direction. In other words, a wider range of axial position adjustment of the wiring box becomes possible. [Brief explanation of the drawing]

[0028] [Figure 1] An exploded perspective view of a wiring box installation device according to one embodiment of the present invention. [Figure 2] Figure 1 shows (a) a perspective view of the wiring box of the wiring box installation device from the front and (b) a perspective view of the wiring box from the rear. [Figure 3] Figure 1 shows (a) a perspective view from the front and (b) a perspective view from the rear of the box holder of the wiring box installation device. [Figure 4] Figure 3 shows (a) a front view, (b) a top view, (c) a left side view, (d) a right side view, (e) a rear view, and (f) a bottom view of the box holder. [Figure 5] (a)AA cross-sectional view and (b)BB cross-sectional view of the box holder in Figure 3. [Figure 6] (a) A perspective view from the front and (b) A perspective view from the rear of the first fixed body of the wiring box installation device shown in Figure 1. [Figure 7] Figure 6 shows (a) a plan view, (b) a front view, (c) a right side view, and (d) a rear view of the first fixed body. [Figure 8] (a) Cross-sectional view of the first solid body, CC, and (b) Cross-sectional view of the DD, as shown in Figure 7. [Figure 9] (a) A perspective view from the front and (b) A perspective view from the rear of the second fixing body of the wiring box installation device in Figure 1. [Figure 10] (a) plan view, (b) front view, (c) left side view, and (d) rear view of the second fixed body in Figure 9. [Figure 11] (a) EE cross-section and (b) FF cross-section of the second solid body in Figure 10. [Figure 12] A schematic perspective view showing a box unit of a wiring box installation device according to one embodiment of the present invention. [Figure 13] Rear view of the box unit in Figure 12. [Figure 14] (a) GG cross-sectional view and (b) HH cross-sectional view of the box unit in Figure 13. [Figure 15] A schematic perspective view showing the installation structure of a wiring box installation device according to one embodiment of the present invention. [Figure 16] Front view of the installation structure shown in Figure 15. [Figure 17] Rear view of the installation structure shown in Figure 15. [Figure 18] Figure 15 is a plan view of the installation structure. [Figure 19] Figure 18 shows a cross-sectional view of the installation structure. [Figure 20] A schematic diagram showing an installation structure using a wiring box installation device according to one embodiment of the present invention, in which the wiring box is installed close to (a) one column and (b) the other column. [Figure 21] A schematic diagram showing a step in a method for constructing an installation structure using a wiring box installation device according to one embodiment of the present invention, in which a first fixing body is fixed to one of a pair of columns. [Figure 22] A schematic diagram showing a step in a method of constructing an installation structure using a wiring box installation device according to one embodiment of the present invention, in which a second fixing body is fixed to the other of a pair of columns. [Figure 23]A schematic diagram showing a step in a method of constructing an installation structure using a wiring box installation device according to one embodiment of the present invention, in which both ends of a bolt are attached to (a) a first fixing body and (a) a second fixing body, respectively. [Figure 24] A schematic diagram showing a step in constructing an installation structure using a wiring box installation device according to one embodiment of the present invention, in which a wiring box is attached by hooking it onto a bolt via a box holder. [Figure 25] A schematic diagram showing a step in a method for constructing an installation structure using a wiring box installation device according to one embodiment of the present invention (another example), in which a box unit is placed between a first fixed body and a second fixed body. [Figure 26] A schematic perspective view showing another example of use of the box mounting device according to one embodiment of the present invention. [Figure 27] A schematic perspective view showing an installation structure using a box installation device according to another embodiment of the present invention. [Modes for carrying out the invention]

[0029] The following describes one embodiment of the present invention with reference to the drawings. Note that the shapes in the drawings referenced in the following description are conceptual or schematic diagrams for illustrating preferred shapes and dimensions, and the dimensional ratios, etc., do not necessarily correspond to actual dimensional ratios. In other words, the present invention is not limited to the dimensional ratios shown in the drawings.

[0030] One embodiment of the present invention, a wiring box installation device 100, is configured to install a wiring box 110 between a pair of lightweight studs 11, which are erected at intervals in a wall (space behind the wall) with their longitudinal direction as the vertical direction. As shown in Figure 1, the wiring box installation device 100 comprises a wiring box 110, a long bolt 120 as a rod-shaped body, a box holder 130, and a pair of fixed bodies 150 and 160 as a rod-shaped body support device. That is, the rod-shaped body support device is a device for supporting the bolt 120 that is erected between the pair of lightweight studs 11, and consists of a pair of fixed bodies 150 and 160 that are fixed to the pair of lightweight studs 11, respectively. In this embodiment, a long bolt 120 of uniform thickness is exemplified as the rod-shaped body, but it is not limited to this. That is, the rod-shaped body of the present invention includes any configuration in which its end can be supported by the support parts of the pair of fixed bodies, and for example, it does not have to have screw threads on its surface, or it does not have to be of uniform thickness. Furthermore, the rod-shaped body is a concept that also includes the box unit (see Figure 12), which will be discussed later.

[0031] The lightweight stud 11 to which the bolt 120 of this embodiment is to be erected is exemplified as a lightweight C-shaped steel (lip channel steel), as shown in Figure 15, etc., comprising: a bottom wall 12 extending continuously in the vertical direction; a pair of side walls 13 rising from both sides in the width direction of the bottom wall 12 to form a substantially U-shaped cross-section and facing each other; a pair of lip portions 14 projecting from the tip sides of the pair of side walls 13 in the opposing width direction with a predetermined projection length; and an opening 15 formed between the pair of lip portions 14 so as to allow the internal space of the lightweight stud 11 to face the outside, and opening continuously in the vertical direction with a width narrower than the distance between the opposing side walls 13. In one embodiment, the pair of lightweight studs 11 are described as one lightweight stud 11-1 and the other lightweight stud 11-2, erected with the openings 15 facing the same side in the axial direction. However, the column of the present invention is not limited to lightweight C-shaped steel, and may be of other shapes such as lightweight H-shaped steel or square steel, and its orientation may be arbitrarily changed. Then, a front wall Wf and a rear wall Wr are installed on the outer surfaces of the pair of side walls 13 of the lightweight stud 11, respectively (see Figure 18, etc.), thereby constructing a hollow wall structure. In other words, the wiring box installation device 100 of this embodiment allows the wiring box 110 to be installed in the space behind the hollow wall.

[0032] Next, each component of the wiring box installation device 100 of this embodiment will be described. In each component, the direction in which the wiring box installation device 100 is installed is used as the reference, the direction in which the bolt 120 extends is defined as the axial direction, the width direction of the lightweight stud 11 is defined as the front-to-back direction (the side with the opening of the wiring box 110 is the front), and the vertically upward and vertically downward directions of the vertically erected direction of the lightweight stud 11 are defined as upward and downward, respectively.

[0033] First, with reference to Figure 2, the wiring box 110 that constitutes the wiring box installation device 100 of this embodiment will be described. Figures 2(a) and (b) are schematic perspective views of the wiring box 110 from the front and rear. The wiring box 110 is a bottomed box with an open front, and is configured to house equipment and cables inside, and to allow the attachment of wiring equipment (illustrated) to its front. In other words, the wiring box 110 is used by being placed inside a wall with its front facing the wall surface, and the wiring equipment is fixed to the front. More specifically, the wiring box 110 comprises a rectangular rear wall 111 extending vertically and horizontally, a peripheral wall 112 rising from the periphery of the rear wall 111 to the front, and a front opening 113 bordered by the front end edge of the peripheral wall 112. The rear wall 111 is also provided with a holding portion 114 to which the box holder 130 is assembled. In this embodiment, the retained portion 114 consists of two through holes arranged side by side approximately in the center of the rear wall 111 in the vertical direction (up and down direction). In this embodiment, the wiring box 110 is made of synthetic resin with a relatively thick wall, but it may also be made of metal with a relatively thin wall.

[0034] Next, the box holder 130 will be described with reference to Figures 3 to 5. Figure 3 is a schematic perspective view of the box holder 130 from the front and rear. Figures 4(a) to 4(f) are the front view, top view, left side view, right side view, rear view, and bottom view of the box holder 130. Figure 5 is the AA and BB cross-sectional views of the box holder 130(a) and (b).

[0035] The box holder 130 is configured to be attached to the bolt 120 and to hold the wiring box 110. In other words, the box holder 130 comprises attachment parts (hanging parts 133, 134) that are attached to the bolt 120, and a holding part that holds the wiring box 110 when attached to the bolt 120. More specifically, the box holder 130 comprises a base part 131 having a front surface facing the outer surface of the rear wall 111 of the wiring box 110, a pair of holding parts 132 protruding from the front surface of the base part 131, and (at least) two hanging parts 133, 134 formed as attachment parts on the rear surface side of the base part 131. The base part 131 has a flat plate shape that extends longitudinally, and its front surface extends in a planar manner. The longitudinal direction of the base part 131 coincides with the lateral direction of the wiring box 110 and the axial direction of the bolt 120 when assembled.

[0036] A pair of holding parts 132 are axially projected from the front surface of the base portion 131 for holding the wiring box 110 to the front. The pair of holding parts 132 are fitted into a held portion 114 formed through the rear wall 111 of the wiring box 110, thereby enabling the box holder 130 to be detachably assembled to the wiring box 110. Each holding part 132 consists of a long axis 132a located inward in the lateral direction and a short axis 132b located outward. Each holding part 132 penetrates the rear wall 111 of the wiring box 110, and its enlarged portion engages with the inner surface of the rear wall 111, thereby fixing it to the held portion 114 in a non-detachable state. Furthermore, the long axis 132a and the short axis 132b are elastically displaceable in the direction of reduction in diameter, moving closer to each other. In other words, it is possible to detach the holding part 132 from the held portion 114 when the holding part 132 is in a reduced diameter state. Furthermore, the long axis 132a of each holding part 132 is designed for assembly into wiring boxes made of synthetic resin with relatively thick walls, while the short axis 132b is designed for assembly into wiring boxes made of metal with relatively thin walls.

[0037] On the rear surface of the base portion 131, at least two first hooking portions 133 and second hooking portions 134 are provided side by side in the axial direction. In the cross-sectional shape perpendicular to the axial direction shown in Figure 5, each hooking portion 133, 134 has a receiving opening that opens in a predetermined opening direction, defines an arrangement space (continuous in the axial direction) in which a bolt 120 can be placed, and is configured in a hook shape so that it can be hooked from above onto the bolt 120 placed in the arrangement space. In this embodiment, the receiving openings of the hooking portions 133, 134 open downward when the box holder 130 is assembled to the wiring box 110, and are formed with an opening width that allows the bolt 120 to be received into the arrangement space. The opening width of the receiving opening is smaller than the diameter of the bolt 120 and expands by elastic deformation when receiving. In addition, the first hooking portion 133 and the second hooking portion 134 have semicircular inner surfaces with the same arc diameter, and the arc diameter corresponds to the outer diameter of the bolt 120. Each of the mounting portions 133 and 134 is configured to be elastically deformable in the diameter expansion direction. The first mounting portion 133 and the second mounting portion 134 have the same inner surface shape and are arranged side by side in the axial direction of the bolt 120 to be attached, and are offset in directions perpendicular to both the axial direction of the bolt 120 and the opening direction (of the receiving port). In particular, as shown in Figure 5(b), the second mounting portion 135 is located further back than the first mounting portion 133, and the centers of their arcs are eccentric to each other. The bolt 120 is then positioned in the overlapping portion of the arrangement space of the first mounting portion 133 and the arrangement space of the second mounting portion 134 in a plane perpendicular to the axial direction. In other words, the first mounting portion 133 and the second mounting portion 134 work together to form a narrower arrangement space (the overlapping portion of the two arrangement spaces), so that at least one of them can be elastically deformed more significantly in the diameter expansion direction, and can press more strongly against the bolt 120 in the arrangement space without narrowing the opening width of each.

[0038] The first fixing body 150 will be described with reference to Figures 6 to 8. Figure 6 is a schematic perspective view of the first fixing body 150 from the front and rear. Figures 7(a) to 7(d) are a plan view, front view, right side view, and rear view of the first fixing body 150. Figures 8(a) and 8(b) are cross-sectional views of the CC and DD sections of the first fixing body 150.

[0039] The first fixing body 150 includes a fixing portion for fixing the first fixing body 150 to a predetermined fixing position (first fixing position) of one of the lightweight studs 11, and a support portion for supporting the end of the bolt 120. The first fixing body 150 is configured to be fixed to one of the pair of lightweight studs 11, the lightweight stud 11, whose opening 15 faces inward (towards the side facing the other lightweight stud 11). In particular, the first fixing body 150 includes a first base portion 151 that is inserted into the internal space of the lightweight stud 11 through the opening 15 and is provided with a fixing portion, and a first extension portion 152 that extends from the first base portion 151 and is provided with a support portion for supporting the end of the bolt 120.

[0040] The first base portion 151 comprises an insertion portion 151a configured to be inserted into the internal space of the lightweight stud 11, and a base portion 151b connected to the insertion portion 151a so as to extend into the external space of the lightweight stud 11.

[0041] The insertion portion 151a is sized to fit within the internal space of the lightweight stud 11 and to pass through the opening 15. The insertion portion 151a of the first base 151 is provided with a flat contact surface that extends to make surface contact with the inner surface of the bottom wall 12 of the lightweight stud 11. This contact surface is provided with an inner surface adhesive portion 153 that is attached to the inner surface of the bottom wall 12 as a first fixing portion. This inner surface adhesive portion 153 includes, for example, an adhesive or double-sided tape. The insertion portion 151a is also provided with a first positioning portion 154 that positions the first fixing body to a first fixing position by contacting the inner surface of one side wall 13 of the lightweight stud 11 to be fixed. The first positioning portion 154 is formed on the flat front surface of the insertion portion 151a and consists of a contact surface that contacts the inner surface of the front side wall 13 of the lightweight stud 11. By bringing the first positioning portion 154 into contact with the inner surface of the front side wall 13 of the lightweight stud 11, and bringing the inner surface attachment portion 153 into contact with the inner surface of the bottom wall 12, the first fixing body 150 can be fixed to the lightweight stud 11 while maintaining a horizontal position with respect to the axial direction and being aligned in the front-rear direction. Furthermore, when the first fixing body 150 is fixed to the lightweight stud 11, the base plate portion 151b comes into contact with the lip portion 14, and the first positioning portion 154 and the inner surface attachment portion 153 can come into contact with the lightweight stud 11. In other words, the first fixing body 150 can be stably fixed by coming into contact with at least one side of the lip portion 14, the inner surface of the bottom wall 12, and the inner surface of the side wall 13.

[0042] Furthermore, the substrate portion 151b consists of a plate-like body that extends front to back so as to span across the lip portions 14 facing each other in the width direction (front to back direction). In other words, in this embodiment, it is more preferable that the length of the substrate portion 151b in the width direction (front to back direction) be determined so as to span across the lip portions 14 facing each other in the width direction, which allows for more stable fixing. Three screw holes 155 are formed on the front end side of the substrate portion 151b as a second fixing part. The first fixing body 150 can be permanently fixed to the lightweight stud 11 by screwing screws into the lip portions 14 through these screw holes 155. In this embodiment, the first fixing body 150 is provided with two fixing means as fixing parts, but it may also be permanently fixed using only the inner adhesive part 153 such as double-sided tape (without using screws) or fixed using only screws using the screw holes 155 (without using the inner adhesive part 153).

[0043] Furthermore, the base plate portion 151b of the first base portion 151 is provided with a bolt insertion portion 156 that allows the end of the bolt 120 to pass through. This bolt insertion portion 156 is a through-hole formed on the rear end side of the base plate portion 151b, through which the end of the bolt 120 (supported by the support portion) can pass. This bolt insertion portion 156 is larger than the cross-sectional area of ​​the bolt 120 and is formed on the axial extension line of the bolt 120 supported by the support portion. By positioning the end of the bolt 120 in the bolt insertion portion 156, precise length adjustment of the bolt 120 becomes unnecessary, at least by the thickness of the base plate portion 151b. In addition, as will be described later (see Figure 26), this bolt insertion portion 156 can also function to allow the bolt to enter the internal space of the lightweight stud 11 from the opening 15.

[0044] Furthermore, a display section 157 is formed on the front end surface of the base plate portion 151b to indicate the fixed position of the lightweight stud 11 in the vertical installation direction. The display section 157 consists of multiple arrows and indicates the vertical center position of the first base portion 151, as well as the height of the axis of the bolt 120 supported by either the upward-facing hook portion 158 or the downward-facing hook portion 161.

[0045] The first extension portion 152 extends approximately perpendicularly from the rear end of the base plate portion 151b of the first base portion 151, away from the fixing portion (lightweight stud 11). The first extension portion 152 is formed in a base plate shape and has a front surface facing the wiring box 110 and a rear surface on the opposite side. A support portion for supporting the bolt 120 is provided on the front surface of the first extension portion 152. In the cross-sectional shape perpendicular to the axial direction shown in Figure 8, this support portion has an opening that opens upward, defines an arrangement space (continuous in the axial direction) in which the bolt 120 can be placed, and includes an upward-facing hook portion 158 that extends in a hook shape to support the bolt 120 placed in the arrangement space from below, and an upper pressure contact portion 159 that is formed at a position offset in the axial direction of the bolt 120 from the upward-facing hook portion 158, and cooperates with the upward-facing hook portion 158 to clamp and hold the bolt 120 (by sandwiching it from a direction intersecting the vertical direction).

[0046] The upward-facing hook portion 158 extends from the front surface of the first extension portion 152 and has a substantially arc-shaped hook with a cross-sectional shape that is continuous in the axial direction. As shown in Figure 8, a space for placement is defined inside this hook shape. The receiving port opening above the upward-facing hook portion 158 is formed with an opening width that allows the bolt 120 to be received into the space for placement. The opening width of the receiving port is smaller than the diameter of the bolt 120 and expands by elastic deformation when the bolt is received. The inner surface of the upward-facing hook portion 158 is formed to conform to the outer circumference shape of the bolt 120. Furthermore, the upward-facing hook portion 158 is configured to be elastically deformable in the expanding diameter direction. In addition, a plurality of protrusions (or grooves) extending in a direction perpendicular to the axial direction are formed on the inner surface of the upward-facing hook portion 158. These multiple protrusions bite into the thread grooves of the bolt 120 and function to prevent the bolt 120 from slipping in the axial direction.

[0047] The upper pressure contact portion 159 is formed on a part of the front surface of the first extension portion 152 so as to be located on the axial extension of the arrangement space created by the upward hook portion 158, and is formed as a curved recess that matches the outer circumference shape of the bolt 120. That is, as shown in Figure 8, the upper pressure contact portion 159 is opposed to the rising portion of the upward hook portion 158 in the clamping direction and is configured to clamp and hold the bolt 120 in cooperation with the upward hook portion 158. In other words, the opposing distance between the upward hook portion 158 and the upper pressure contact portion 159 is the same as, but smaller than, the outer diameter of the bolt 120.

[0048] In this embodiment, the upward-facing hook portion 158 is composed of (at least) two hook portions that are arranged side by side in the axial direction and offset in the clamping direction (front-rear direction). As shown in Figure 8, the hook portion on the axial side is located further forward than the hook portion on the axial side (first base portion 151 side), and the centers of each hook portion are eccentric. In a plane perpendicular to the axial direction, the overlapping portion of the two hook portions is defined as the arrangement space for the bolt 120. In other words, by the two hook portions working together to form a narrower arrangement space, at least one of them undergoes greater elastic deformation in the diameter expansion direction, allowing the upward-facing hook portion 158 to be pressed more strongly against the bolt 120 in the arrangement space without narrowing the opening width of each hook portion.

[0049] Furthermore, the support portion is configured to support the bolt 120 even when it is inverted and fixed upside down. Specifically, the support portion has a receiving opening that opens downwards, defines an arrangement space in which the bolt 120 can be placed, and further comprises a downward-facing hook portion 161 that extends in a hook shape to support the bolt 120 placed in the arrangement space from below when the first fixing body 150 is inverted upside down, and a lower pressure contact portion 162 that is formed at a position offset in the axial direction of the bolt 120 from the downward-facing hook portion 161, and cooperates with the downward-facing hook portion 161 to clamp and hold the bolt 120 (by sandwiching it from a direction intersecting the vertical direction). The downward-facing hook portion 161 and the lower pressure contact portion 162 are formed symmetrically upside down to the upward-facing hook portion 158 and the upper pressure contact portion 159, and have a similar configuration, so their explanation will be omitted.

[0050] Furthermore, a window 152a is cut out of the first extension portion 152 at a position opposite the upward-facing hook portion 158 and the downward-facing hook portion 161. This window 152a allows the support state of the bolt 120 to be viewed from the rear side of the wiring box 110.

[0051] The second fixing body 170 will be described with reference to Figures 9 to 11. Figure 9 is a schematic perspective view of the second fixing body 170 from the front and rear. Figures 10(a) to 10(d) are a plan view, front view, left side view, and rear view of the second fixing body 170. Figures 11(a) and 11(b) are EE cross-sectional view and FF cross-sectional view of the second fixing body 170.

[0052] The second fixing body 170 includes a fixing portion for fixing the second fixing body 170 to a predetermined fixing position (second fixing position) of the other lightweight stud 11, and a support portion for supporting the end of the bolt 120. The second fixing body 170 is configured to be fixed to the other lightweight stud 11-2 of the pair of lightweight studs 11, the one whose opening 15 faces outward (opposite side in the opposing direction). In particular, the second fixing body 170 includes a second base portion 171 that extends along the width direction of the lightweight stud 11 so as to abut the outer surface of the bottom wall 12 and has a fixing portion so as to be fixed to the lightweight stud 11 in a state of abutment with the outer surface of the bottom wall 12, and a second extension portion 172 that extends from the second base portion 171 and has a support portion for supporting the end of the bolt 120.

[0053] The second base portion 171 consists of a plate-like body that extends front to back (width direction) across the entire width of the bottom wall 12. The first surface of the second base portion 171 is provided with a flat contact surface that extends to make surface contact with the outer surface of the bottom wall 12 of the lightweight stud 11. This contact surface is provided with an outer surface attachment portion 173, which serves as a first fixing portion and is attached to the outer surface of the bottom wall 12. This outer surface attachment portion 173 includes, for example, an adhesive or double-sided tape. Three screw holes 175 are formed on the front end of the second base portion 171, serving as a second fixing portion. The second fixing body 170 can be permanently fixed to the lightweight stud 11 by screwing screws into the bottom wall 12 through these screw holes 175. In this embodiment, the second fixing body 170 is provided with two fixing means as fixing parts, but it is also possible to fix it using only the outer adhesive part 173 such as double-sided tape (without using screws) without using these in combination, or to fix it using only screws using the screw holes 175 (without using the outer adhesive part 173).

[0054] Furthermore, a second positioning portion 174 is provided on the front end side of the second base portion 171, which positions the second fixing body 170 to the second fixing position by contacting the outer surface of one (front) side wall 13 of the lightweight stud 11. The second positioning portion 174 consists of a protruding piece that extends from the front end of the second base portion 171 toward the first surface, perpendicular to the first surface of the second base portion 171. This second positioning portion 174 has a contact surface (rear surface) that contacts the outer surface of the front side wall 13 of the lightweight stud 11. In other words, by contacting the second positioning portion 174 with the outer surface of the front side wall 13 of the lightweight stud 11 and contacting the outer surface attachment portion 173 with the inner surface of the bottom wall 12, it is possible to fix the second fixing body 170 to the lightweight stud 11 while maintaining a horizontal position with respect to the axial direction and aligning it in the front-rear direction. Furthermore, this second positioning section 174 is configured to be bent and cut off after the second fixing body 170 is fixed to the lightweight stud 11, so as not to interfere with the construction of the front wall Wf (see Figure 18).

[0055] Furthermore, a display section 177 is formed on the front end surface of the second base 171 to indicate the fixed position of the lightweight stud 11 in the erection direction. The display section 177 consists of multiple arrows and indicates the height of the axis of the bolt 120 supported by either the upward-facing hook section 178 or the downward-facing hook section 181. The second base 171 is also provided with a bolt insertion section 176 that allows the end of the bolt 120 to be inserted.

[0056] The second extension 172 extends approximately perpendicularly from the rear end of the second base 171 in a direction away from the fixing part (lightweight stud 11) (towards the second surface). The second extension 172 is formed in a base shape and has a front surface facing the wiring box 110 and a rear surface on the opposite side. A support portion for supporting the bolt 120 is provided on the front surface of the second extension 172. In the cross-sectional shape perpendicular to the axial direction shown in Figure 11, this support portion has an opening that opens upward and defines an arrangement space (continuous in the axial direction) in which the bolt 120 can be placed, and includes an upward-facing hook portion 178 that extends in a hook shape to support the bolt 120 placed in the arrangement space from below, and an upper pressure contact portion 179 that is formed at a position offset in the axial direction of the bolt 120 from the upward-facing hook portion 178 and cooperates with the upward-facing hook portion 178 to clamp and hold the bolt 120 (by sandwiching it from a direction intersecting the vertical direction). Furthermore, the support portion is configured to support the bolt 120 even when it is inverted and fixed upside down. Specifically, the support portion has a receiving opening that opens downward, defines an arrangement space in which the bolt 120 can be placed, and further comprises a downward-facing hook portion 181 that extends in a hook shape to support the bolt 120 placed in the arrangement space from below when the second fixing body 170 is inverted upside down, and a lower pressure contact portion 182 that is formed at a position offset in the axial direction of the bolt 120 from the downward-facing hook portion 181 and cooperates with the downward-facing hook portion 181 to clamp and hold the bolt 120 (by sandwiching it from a direction intersecting the vertical direction). Here, each component on the second extension portion 172 is the same as each component of the first fixing body 150, so its description is omitted.

[0057] As described above, each component of the wiring box installation device 100 has been explained. Here, the configuration in which the wiring box 110, bolt 120, and box holder 130 are combined integrally is defined as a box unit. Figure 12 is a schematic perspective view of the box unit. Figure 13 is a rear view of the box unit. Figures 14(a) and (b) are cross-sectional views of the box unit at GG and HH, respectively.

[0058] The box unit comprises a wiring box 110, a bolt 120 integrated with the wiring box 110 so that both ends protrude from both sides of the wiring box 110, and a box holder 130 attached to the bolt 120 and integrally holding the wiring box 110 with respect to the bolt 120. In particular, as shown in Figure 14, the box holder 130 is assembled to the wiring box 110 by the axial holding portion 132 of the box holder 130 passing through a holding portion 114 drilled in the rear wall 111 of the wiring box 110, and the enlarged tip portion of the long axis 132a engaging with the front surface of the rear wall 111. The bolt 120 is attached to the box holder 130 by the approximately central portion of the bolt 120 being positioned in the space for the hook-shaped first hanging portion 133 and second hanging portion 134 of the box holder 130 and being held in pressure contact.

[0059] Next, with reference to Figures 15 to 19, an installation structure 10 in which a wiring box installation device 100 according to one embodiment of the present invention is installed on a pair of lightweight studs 11 erected at a distance from each other will be described. Figure 15 is a schematic perspective view of the installation structure 10 as seen from the rear. Figure 16 is a front view of the installation structure 10. Figure 17 is a rear view of the installation structure 10. Figure 18 is a plan view of the installation structure 10. Figures 19(a) and (b) are cross-sectional views of the installation structure 10. As shown by dashed lines in Figure 18, a front wall Wf is erected on the outer surface of the front side wall 13 of the lightweight stud 11, and a rear wall Wr is erected on the outer surface of the rear side wall 13. In other words, the distance in the front-rear direction between the front wall Wf and the rear wall Wr is determined by the distance between the pair of side walls 13. A wall hole H is drilled in the front wall Wf so that the wiring box 110 faces the wall surface space.

[0060] In the installation structure 10 of this embodiment, the opening 15 of one of the pair of lightweight studs 11, lightweight stud 11-1, faces axially inward (in the opposing direction of the pair of lightweight studs 11), and the opening 15 of the other lightweight stud 11-2 faces axially outward (in the opposite direction to the opposing direction of the pair of lightweight studs 11). The first fixing body 150 is fixed to the first fixing position of one lightweight stud 11-1, and the second fixing body 170 is fixed to the second fixing position of the other lightweight stud 11-2. The first and second fixing positions are positioned so that their height and front-to-back positions coincide so that the bolt 120 is supported in a horizontal position. That is, with the first fixing body 150 and the second fixing body 170 fixed to the first and second fixing positions respectively, the respective arrangement spaces of the support parts of the pair of fixing bodies 150 and 170 are aligned in a straight line. Although not intended to limit the present invention, in this embodiment, the width of the bottom wall 12 of the lightweight stud 11 is configured to substantially match the width of the substrate portion 151b of the first fixing body 150 and the width of the second base portion 171 of the second fixing body 170.

[0061] As shown in Figure 18, the first fixing body 150 is fixed to the inner surface of the bottom wall 12 by an inner surface attachment portion 153 (fixing portion) with the insertion portion 151a of the first base portion 151 positioned in the internal space of one lightweight stud 11-1 through the opening 15, and the base portion 151b is positioned across the lip portions 14, with the first positioning portion 154 in contact with the inner surface of the side wall 13, and fixed to the lip portion 14 by screws through screw holes 155 (fixing portion). On the other hand, the second fixing body 170 is fixed to the outer surface of the bottom wall 12 of the other lightweight stud 11-2 by an outer surface attachment portion 173 (fixing portion) of the second base portion 171, and is also fixed to the outer surface of the bottom wall 12 by screws through screw holes 175 (fixing portion).

[0062] Furthermore, the bolt 120 is installed approximately horizontally between a pair of lightweight studs 11 by being supported at both ends by the upward hook portion 158 (support portion) of the first fixing body 150 and the upward hook portion 178 (support portion) of the second fixing body 170, respectively. As shown in Figure 19, the bolt 120 is held in place by strong clamping force between the upward hook portions 158, 178 and the upper pressure contact portions 159, 179, so the bolt 120 will not easily come loose. In addition, as shown in Figure 17, the support status of both ends of the bolt 120 can be visually inspected from the rear through the windows 152a, 172a. For example, if the bolt 120 is installed unevenly on one lightweight stud 11-1 side or the other lightweight stud 11-2 side during work, the position of the tip of the bolt 120 can be checked and corrected through the windows 152a, 172a.

[0063] The wiring box 110 is then attached to the approximately central portion of the erected bolt 120 via the hanging portions 133 and 134 (attachment portions) of the box holder 130, which is integrally attached to the wall 111. In other words, the wiring box 110 is installed in a predetermined position in the installation structure 10. With the second positioning portion 174 removed from the installation structure 10 (not shown), a front wall Wf and a rear wall Wr are constructed on the front and rear surfaces of the side walls 13 of a pair of lightweight studs 11, respectively. A wall hole H is formed in the front wall Wf, making it possible to position the wiring box 110 in the predetermined location so that it faces the wall surface space.

[0064] In the wiring box installation device 100 of this embodiment, the wiring box 110 can also be installed by changing the axial position of the bolt 120. That is, the wiring box installation device 100 is configured so that the wiring box 110 can be installed close to the lightweight stud 11 to a position where it overlaps axially with the first extension portion 152 and the second extension portion 172 without interfering with them. For example, as shown in Figure 20(a), the wiring box 110 can be positioned close to one lightweight stud 11-1 such that a part of the wiring box 110 overlaps with the first extension portion 152. Also, as shown in Figure 20(b), the wiring box 110 can be positioned close to the other lightweight stud 11-2 such that a part of the wiring box 110 overlaps with the second extension portion 172.

[0065] Next, with reference to Figures 21 to 24, a method for installing a wiring box installation device 100 according to one embodiment of the present invention on a pair of lightweight studs 11-1 and 11-2 will be described.

[0066] First, the installation height of the bolts 120 is determined based on the predetermined placement of the wiring box 110. It is preferable to mark the front surface of the side walls 13 of each lightweight stud 11-1, 11-2 to indicate the fixing positions of the first fixing body 150 and the second fixing body 170 according to the installation height.

[0067] Next, the first fixing body 150 is fixed to one of the lightweight studs 11-1. As shown in Figure 21(a), the insertion portion 151a of the first fixing body 150 is inserted into the interior of the lightweight stud 11-1 through the opening 15. Then, the first positioning portion 154 of the first fixing body 150 is brought into contact with the inner surface of the front side wall 13 to position the first fixing body 150 in the front-rear direction. Then, with the height position adjusted so that the arrow of the display portion 157 aligns with the marking line 13a, the inner surface attachment portion 153 is brought into contact with the inner surface of the bottom wall 12. This temporarily fixes the first fixing body 150 to the first fixing position of the lightweight stud 11-1. Then, as shown in Figure 21(b), the first fixing body 150 can be fixed to the lightweight stud 11-1 by screwing a screw into the lip portion 14 through the screw hole 155. Furthermore, if the bolt 120 and wiring box 110 are supported solely by the adhesive force of the inner surface attachment portion 153, screw fixing is not required.

[0068] Similarly, the second fixing body 170 is fixed to the other lightweight stud 11-2. As shown in Figure 22(a), the second positioning part 174 of the second fixing body 170 is brought into contact with the outer surface of the front side wall 13 from the front to position the second fixing body 170 in the front-rear direction. Then, with the height position adjusted so that the arrow of the display part 177 aligns with the marking line 13a, the outer surface adhesive part 173 is brought into contact with the outer surface of the bottom wall 12. This temporarily fixes the second fixing body 170 to the second fixing position of the lightweight stud 11-2. Then, as shown in Figure 22(b), the second fixing body 170 can be fixed to the lightweight stud 11-2 by screwing screws into the bottom wall 12 through the screw holes 155. Note that if the bolt 120 and wiring box 110 are supported only by the adhesive force of the outer surface adhesive part 173, screw fixing is not necessary.

[0069] Next, as shown in Figures 23(a) and (b), with the first fixing body 150 and the second fixing body 170 fixed to the pair of lightweight studs 11-1 and 11-2 respectively, the bolt 120 is lowered in a nearly horizontal position and its end is hooked onto the upward-facing hook portions 158 and 178, respectively. At this time, by pressing the bolt 120 downward, the (upward-facing) receiving openings of the upward-facing hook portions 158 and 178 can be widened and pushed into the installation space. As a result, the bolt 120 can be installed between the pair of lightweight studs 11-1 and 11-2.

[0070] Then, as shown in Figure 24, the wiring box 110 with the box holder 130 attached is moved above the bolt 120 and lowered in a nearly horizontal position, so that the hooks 133 and 134 of the box holder 130 are hooked onto the installed bolt 120. By pressing the wiring box 110 downward against the bolt 120, the (downward-facing) receiving openings of the hooks 133 and 134 can be expanded and pushed into the installation space. As a result, the wiring box 110 can be attached to the bolt 120 via the box holder 130.

[0071] In this installation method, when hooking the bolt 120 to the first fixing body 150 and the second fixing body 170, the box unit shown in Figure 12 may be used. Specifically, as shown in Figure 25, the wiring box 110 can be easily installed between a pair of lightweight studs 11-1 and 11-2 by hooking the bolt 120, which is integrated with the wiring box 110 as a box unit, to the upward hook portions 158 and 178 (support portions) of the first fixing body 150 and the second fixing body 170. In other words, the wiring box installation device 100 of this embodiment can be attached to the bolt 120 with the box holder 130 and the wiring box 110 assembled, both before and after the bolt 120 is supported by the pair of fixing bodies 150 and 170 (rod-shaped support devices), thereby integrating the wiring box 110 and the bolt 120. Furthermore, if the box unit interferes with other work, it can be easily removed from the pair of first and second fixing bodies 150 and 170, and can also be easily reinstalled.

[0072] Figure 26 shows another example of use of the wiring box installation device 100 of this embodiment. In this embodiment, the width of one lightweight stud 11' is wider than the width of the first base 151. In this case, with the first fixing body 150 fixed to the lightweight stud 11', the bolt insertion portion 156 of the first base 151 and the opening 15 of the lightweight stud 11' are in communication. As shown in Figure 26, the end of the bolt 120 can pass through the bolt insertion portion 156 and be positioned in the internal space through the opening 15 of the lightweight stud 11'. In other words, in the wiring box installation device 100 of this embodiment, the first base 151 of the first fixing body 150 allows the end of the bolt 120 to enter the internal space of the lightweight stud 11' through the opening 15, and the bolt 120 can be hooked onto the support portion of the first fixing body 150. This configuration eliminates the need for precise length adjustment of the bolt 120, further improving workability. Similarly, in this example, the first fixing body 150 can be stably fixed by contacting at least one side of the lip portion 14 of the lightweight stud 11', the inner surface of the bottom wall 12, and the inner surface of the side wall 13. Also, in this example, fixing with screws is not essential.

[0073] As a further alternative use example, although not shown in the figures, if the orientation of the openings 15 of one lightweight stud 11-1 and the other lightweight stud 11-2 is opposite to that of the above embodiment, the bolt 120 can be similarly supported by using the first fixing body 150 and the second fixing body 170 upside down.

[0074] Based on the above, the operation and effects of one embodiment of the wiring box installation device 100 (and rod-shaped support device) according to the present invention will be explained.

[0075] In the wiring box installation device 100 (and rod-shaped support device) of this embodiment, a pair of fixing bodies 150 and 170, which are fixed to each of the pair of lightweight studs 11, are provided with support parts configured to hook and support the end of a bolt 120 that has been lowered in a substantially horizontal position while each fixing body 150 and 170 is fixed firmly to the lightweight studs 11. In other words, the bolt 120 can be easily installed between the pair of lightweight studs 11 with a simple operation of hooking the end of the bolt 120 onto the respective support parts of the pair of fixing bodies 150 and 170 from above. Therefore, the wiring box installation device 100 and rod-shaped support device (pair of fixing bodies 150 and 170) of this embodiment improve the workability in the installation of bolts 120 on a pair of lightweight studs 11 that are erected at a distance from each other. Furthermore, the wiring box installation device 100 allows the attachment part of the box holder 130 that holds the wiring box 110 to be easily and stably attached to the bolt 120. In particular, by attaching the hook-shaped hanging parts 133 and 134 to the bolt 120 and positioning them in the placement space via the receiving opening, the attachment part can be easily attached to the bolt 120. Furthermore, at least two hanging parts 133 and 134, which are offset in directions perpendicular to both the axial and opening directions, work together to form a narrower placement space, allowing the hanging parts 133 and 134 to be pressed against the bolt 120 in the placement space without narrowing the opening width of each hanging part 133 and 134, and thus enabling the wiring box 110 to be stably attached to the bolt 120. Therefore, the wiring box installation device 100 of this embodiment improves the workability in the installation of wiring boxes 110 to a pair of lightweight studs 11 erected at intervals.

[0076] [Differentiation] The present invention is not limited to the embodiments described above, and various modifications are possible. Modifications of the present invention are described below. In each modification, components whose last two digits are common to the three-digit component have the same or similar characteristics unless otherwise specified, and their descriptions are partially omitted.

[0077] (1) The rod-shaped support device and wiring box installation device of the present invention are not limited to the configuration of the above embodiment. As shown in Figure 27, the rod-shaped support device and wiring box installation device 100' are configured to be installed on lightweight studs 11 erected so that the openings 15 face each other. In this wiring box installation device 100', the rod-shaped support device consists of a pair of first fixing bodies 150, 150, so that it can be installed between a pair of lightweight studs 11. Alternatively, although not shown, the rod-shaped support device and wiring box installation device may be configured to be installed on lightweight studs 11 erected so that the openings 15 face opposite each other, or on a square column without an opening. In this case, the rod-shaped support device consists of a pair of second fixing bodies 170, 170, so that it can be installed between a pair of lightweight studs 11 or a square column. That is, the pair of fixing bodies can be appropriately selected or changed depending on the column to be installed, and may be composed of fixing bodies of the same shape, as illustrated in the modified example.

[0078] (2) The rod-shaped support device of the present invention is not limited to the configuration of the above embodiment. In the above embodiment, a wiring box is attached and arranged by a rod-shaped body supported by the rod-shaped support device, but any device other than a wiring box may be attached. Furthermore, the wiring box may be directly attached to the rod-shaped body by screws or the like without going through a box holder.

[0079] (3) The wiring box installation device of the present invention is not limited to the configuration of the above embodiment. In the above embodiment, the box unit is formed in which the wiring box and the rod-shaped body are integrally assembled via a box holder, but the present invention is not limited thereto. That is, the box unit of the present invention may be formed in which the wiring box and one or two rod-shaped bodies, whose ends protrude from both sides of the wiring box, are integrally formed (without a box holder).

[0080] (4) The rod-shaped support device and wiring box installation device of the present invention are not limited to the configuration of the above embodiment. For example, the support portion may consist only of an upward-facing hook portion, or it may have other shapes other than a hook shape as long as it is a form that hooks and supports the end of the rod-shaped body. Also, in the above embodiment, the inner surface attachment portion of the first fixing body is configured to be attached to the inner surface of the bottom wall of the column, but it may be formed on the outer surface of the first base portion so that it can be attached to the inner surface of the side wall. Similarly, the outer surface attachment portion of the second fixing body is configured to be attached to the outer surface of the bottom wall of the column, but it may be formed on the outer surface of the second base portion so that it can be attached to the outer surface of the side wall.

[0081] The present invention is not limited to the embodiments or modifications described above, and can be implemented in various forms as long as they fall within the technical scope of the present invention. That is, within the technical scope of the present invention, some of the configurations of this embodiment may be omitted or modified, or other configurations may be added. [Explanation of symbols]

[0082] 10 Installation structure 11 Lightweight studs 12 Bottom wall 13 Side wall 14 Lip section 15 Opening 100 Wiring box installation device (arrangement unit installation device) 110 Wiring Box 111 Back wall 112 Peripheral wall 113 Front opening 114 Holding part 120 volts (rod-shaped) 130 Box holder (installation unit holder) 131 Base 132 Holding part 132a long axis 132b Short axis 133 First attachment section (attachment section) 134 Second attachment section (attachment section) 150 First fixed body (rod-shaped body support device) 151 1st base 151a Insertion site 151b Board part 152 1st extension part 152a Window 153 Inner surface adhesive part (fixed part) 154 First positioning section 155 Screw hole (fixed part) 156 Bolt insertion section (rod-shaped body insertion section) 157 Display section 158 Upward-facing hook section (support section) 159 Upper pressure-welded section (support section) 161 Downward-facing hook section (support section) 162 Lower pressure contact part (support part) 170 Second fixed body (rod-shaped body support device) 171 Second base 172 Second extension part 172a Window 173 External adhesive part (fixed part) 174 Second positioning section 175 Screw hole (fixed part) 176 Bolt insertion section (rod-shaped body insertion section) 177 Display section 178 Upward-facing hook section (support section) 179 Upper pressure-welded section (support section) 181 Downward-facing hook section (support section) 182 Lower pressure contact part (support part)

Claims

1. A rod-shaped support device for supporting a rod-shaped body that is erected between a pair of columns spaced apart, The pair of columns each comprises a pair of fixing bodies, The fixing body comprises a fixing portion that can be fixed to the column and a support portion that supports the rod-shaped body. A rod-shaped body support device characterized in that the support portion is configured to hook and support the end of the rod-shaped body, which is lowered in a substantially horizontal position, while the fixing body is fixed firmly attached to the column.

2. The aforementioned support portion is It has an opening at the top, defines an arrangement space in which the rod-shaped body can be placed, and has an upward-facing hook portion that extends in a hook shape to support the rod-shaped body placed in the arrangement space from below, It comprises a pressure contact portion formed at a position offset in the axial direction of the rod-shaped body from the upward hook portion, and which cooperates with the upward hook portion to clamp and hold the rod-shaped body, The rod-shaped body support device according to claim 1, characterized in that the upward-facing hook portion is composed of at least two hook portions arranged in parallel in the axial direction of the rod-shaped body to which it is attached, and offset in the clamping direction.

3. The column comprises a bottom wall extending continuously in the vertical direction, a pair of side walls extending from both sides of the bottom wall in the width direction to form a substantially U-shaped cross-section, a pair of lip portions provided at the tip ends of the pair of side walls and facing each other in the width direction, and an opening formed between the pair of lip portions to allow the internal space of the column to face the outside. The first of the pair of fixed bodies is The first base portion is inserted into the internal space through the opening and is provided with the fixing portion, It comprises a first extension portion that extends from the first base portion in a direction away from the column and is provided with the support portion, The rod-shaped body support device according to claim 1 or 2, characterized in that the fixing portion includes an internal attachment portion that is attached to the inner surface of the bottom wall or the inner surface of the side wall.

4. The first fixing body further includes a first positioning part that positions the first fixing body to a first fixing position by contacting the inner surface of the side wall of the column to be fixed, The second of the pair of fixed bodies is A second base portion extends along the width direction of the column so as to abut against the outer surface of the bottom wall, and the fixing portion is provided so as to be fixed to the column in a state of abutment against the outer surface of the bottom wall, A second extension extends from the second base in a direction away from the column, and the support portion is provided therein. The second base is provided on one end in the width direction and, by contacting the outer surface of one of the side walls of the column, positions the second fixing body to the second fixing position, The rod-shaped body support device according to claim 3, characterized in that, with the first and second fixing bodies fixed to the first and second fixing positions, respectively, the arrangement spaces of the support portions of the pair of fixing bodies are aligned in a straight line.

5. The rod-shaped body support device according to claim 4, characterized in that the support portion of the first fixed body has a receiving opening that opens downward, defines an arrangement space in which the rod-shaped body can be placed, and has a downward-facing hook portion that extends in a hook shape to support the rod-shaped body placed in the arrangement space from below when the first fixed body is inverted vertically.

6. The rod-shaped body support device according to claim 3, characterized in that the first base of the first fixing body is provided with a rod-shaped body insertion portion that allows the end of the rod-shaped body to be inserted.

7. A wiring box installation device installed between a pair of columns erected at intervals, Wiring box and A rod-shaped support device according to claim 1, A rod-shaped body supported by the rod-shaped body support device while being erected between the pair of columns, The box holder is attached to the rod-shaped body and holds the wiring box, The box holder comprises an attachment portion that is attached to the rod-shaped body, and a holding portion that holds the wiring box while attached to the rod-shaped body. The attachment portion has a receiving opening that opens in a predetermined opening direction, defines an arrangement space in which the rod-shaped body can be placed, and comprises at least two hook-shaped hanging portions that can be hung on the rod-shaped body placed in the arrangement space. The wiring box installation device is characterized in that the at least two hanging portions are arranged side by side in the axial direction of the rod-shaped body to which it is attached, and are offset in directions perpendicular to both the axial direction of the rod-shaped body and the opening direction.

8. A wiring box installation device installed between a pair of columns erected at intervals, A box unit comprising a wiring box, and a rod-shaped body integrated with the wiring box such that its ends protrude from both sides of the wiring box, The rod-shaped support device according to claim 1 comprises, A wiring box installation device characterized in that, with a pair of fixed bodies fixed to a pair of columns, both ends of the rod-shaped body can be hooked onto the respective support parts of the pair of fixed bodies and are also removable.

9. The box unit further comprises a box holder which is attached to the rod-shaped body and integrally holds the wiring box with respect to the rod-shaped body. The box holder is configured to be assembled with the wiring box, The wiring box installation device according to claim 8, characterized in that, both before the rod-shaped body is supported by the rod-shaped body support device and after the rod-shaped body is supported by the rod-shaped body support device, the box holder and the wiring box are attached to the rod-shaped body in an assembled state, thereby enabling the wiring box and the rod-shaped body to be integrated.

10. At least one of the pair of fixed bodies has an extension that extends in a direction away from the fixed column, and the support portion is provided on the extension. The wiring box installation device according to any one of claims 7 to 9, characterized in that the wiring box can be installed close to the column to a position where it overlaps with the extension in the axial direction without interfering with the extension.

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