Duct systems, fixtures, and cases

Abstract

The present invention provides a duct system, fixtures, and cases that can reduce the height from the surface of the tabletop. [Solution] The duct system 1 comprises a long wiring duct 10, a case 20, and a fixing part 30. The case 20 houses the wiring duct 10 with its opening 14 exposed. The fixing part 30 fixes the case 20 to the top plate while the case 20 is placed on the surface of the top plate.

Description

Technical Field

[0001] The present disclosure relates to a duct system, furniture, and a case. More specifically, the present disclosure relates to a duct system, furniture, and a case that are used while being attached to a top plate.

Background Art

[0002] Patent Document 1 discloses a duct system including a wiring duct, a first fixing portion (case) to which the wiring duct is attached, and two second fixing portions that are respectively attached to both ends in the longitudinal direction of the first fixing portion and fix the first fixing portion to the top plate.

[0003] The two second fixing portions support the first fixing portion in a state of floating from the top plate so that a space is provided between the first fixing portion to which the wiring duct is attached and the top plate.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the duct system of Patent Document 1, since a space is provided between the first fixing portion and the top plate, there is a problem that the height from the surface of the top plate (the surface on which the wiring duct is arranged) to the upper end of the first fixing portion becomes high.

[0006] An object of the present disclosure is to provide a duct system, furniture, and a case capable of reducing the height from the surface of the top plate.

Means for Solving the Problems

[0007] A duct system according to one aspect of the present disclosure comprises a long wiring duct, a case, and a fixing part. The case houses the wiring duct with its opening exposed. The fixing part fixes the case to the top plate while the case is placed on the surface of the top plate.

[0008] A fixture according to one aspect of the present disclosure comprises the duct system and the top plate to which the fixing part is fixed.

[0009] A case according to one aspect of the present disclosure is provided in the duct system. The case comprises a case body for housing the wiring duct. The case body is provided with a window opening that exposes at least the opening of the wiring duct, and the case body is fixed to the top plate while resting on the surface of the top plate. [Effects of the Invention]

[0010] According to this disclosure, the height from the surface of the tabletop can be reduced. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is an external perspective view of a duct system according to one embodiment of the present disclosure. [Figure 2] Figure 2 is an external perspective view of the fixture to which the duct system described above is installed. [Figure 3] Figure 3 is an exploded perspective view of the same duct system. [Figure 4] Figure 4 is a side view of the duct system shown above, installed on a fixture. [Figure 5] Figure 5 is a partial cross-sectional view of the duct system shown above, attached to a fixture. [Figure 6] Figure 6 is a cross-sectional view of the line A1-A2 in Figure 4. [Figure 7] Figure 7 is a perspective view of the clamp member of the duct system described above. [Modes for carrying out the invention]

[0012] The duct system and the fixtures equipped with the duct system according to the embodiments will be described in detail below with reference to the drawings. However, the figures described in the following embodiments are schematic diagrams, and the dimensional ratios of the size of each component do not necessarily reflect the actual dimensional ratios. Furthermore, the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0013] (Embodiment) (1) Overview As shown in Figures 1 to 7, the duct system 1 of this embodiment includes a long wiring duct 10, a case 20, and a fixing part 30.

[0014] The case 20 houses the wiring duct 10 with the opening 14 of the wiring duct 10 exposed.

[0015] The fixing part 30 secures the case 20 to the top plate 110 while the case 20 is placed on the surface 111 of the top plate 110.

[0016] The wiring duct 10 has a long duct rail 11. Conductive bars 16A and 16B for power supply are housed inside the duct rail 11. The duct rail 11 is provided with the above-mentioned opening 14. A USB outlet plug 200, as shown in Figure 4, can be connected to the wiring duct 10. When the USB outlet plug 200 is connected to the wiring duct 10, a portion of the USB outlet plug 200 is inserted into the opening 14, and the USB outlet plug 200 is electrically connected to the conductive bars 16A and 16B. As a result, power is supplied from the conductive bars 16A and 16B to the USB outlet plug 200, making it possible to power electrical devices (e.g., smartphones, tablet computers, or laptop computers) connected to the USB outlet plug 200.

[0017] In addition, in the present embodiment, the state where the case 20 is placed on the surface 111 of the top plate 110 is not limited to the state where the case 20 is directly placed on the surface 111 of the top plate 110, and may include the state where the case 20 is placed on the surface 111 of the top plate 110 via another member (for example, a joining member 31 such as a sheet-like adhesive material).

[0018] Further, the case 20 of the present embodiment is provided in the duct system 1. The case 20 includes a case body 21 that houses the wiring duct 10. A window hole 22 for at least exposing the opening 14 of the wiring duct 10 is provided in the case body 21. The case body 21 is fixed to the top plate 110 in a state where it is placed on the surface 111 of the top plate 110.

[0019] In the duct system 1 of the present embodiment, the case 20 that houses the wiring duct 10 is fixed to the top plate 110 in a state where it is placed on the surface 111 of the top plate 110. Therefore, in the duct system 1 of the present embodiment, compared with the case where the case 20 is attached to the surface 111 of the top plate 110 with a gap provided between the entire case 20 and the surface 111 of the top plate 110, the height from the surface 111 of the top plate 110 to the upper end of the case 20 can be reduced. Therefore, in the present embodiment, a duct system 1 capable of reducing the height from the surface 111 of the top plate 110 can be provided.

[0020] The duct system 1 of the present embodiment is used, for example, in a state where it is installed on the top plate 110 of the furniture 100 (see FIGS. 2, 4, and 5). The furniture 100 is, for example, a table in which the top plate 110 is supported by a plurality of legs 112. The furniture 100 is arranged, for example, in an office, a public facility (such as a school, a library, etc.), a restaurant, or a dining space in a commercial facility. The furniture 100 is, for example, a single-person desk or a long desk for multiple people to work face-to-face side by side.

[0021] The furniture 100 of the present embodiment includes the above-described duct system 1 and a top plate 110 to which the fixing portion 30 is fixed.

[0022] Since the fixture 100 of this embodiment is equipped with the duct system 1 described above, it is possible to provide a fixture 100 that can reduce the height from the surface 111 of the top plate 110 to the upper end of the case 20. Therefore, in this embodiment, it is possible to provide a fixture 100 equipped with a duct system 1 that can reduce the height from the surface 111 of the top plate 110.

[0023] (2)Details The duct system 1 and the furniture 100 equipped with the duct system 1 of this embodiment will be described in detail below with reference to Figures 1 to 7. In the following description, the X-axis direction in Figures 1 to 7 is defined as the front-to-back direction (depth direction), the Y-axis direction as the left-to-right direction, and the Z-axis direction as the up-to-down direction. Furthermore, the positive direction in the X-axis direction is defined as the front, the positive direction in the Y-axis direction as the right side, and the positive direction in the Z-axis direction as the top. However, these directions are merely examples and are not intended to limit the direction in which the duct system 1 and furniture 100 can be used. Also, the arrows indicating each direction in the drawings are for illustrative purposes only and do not represent actual objects.

[0024] (2.1) Duct systems The duct system 1 comprises a long wiring duct 10, a case 20, and a fixing part 30.

[0025] (2.1.1) Wiring ducts The wiring duct 10 is housed inside a case 20 attached to the top plate 110 of the fixture 100. The case 20 is elongated, and the longitudinal direction of the case 20 is parallel to the longitudinal direction of the wiring duct 10 housed inside the case 20. However, it is not essential that the longitudinal direction of the case 20 and the longitudinal direction of the wiring duct 10 housed inside the case 20 are parallel; the longitudinal direction of the wiring duct 10 may be inclined at an angle of, for example, 10 degrees or less relative to the longitudinal direction of the case 20.

[0026] The wiring duct 10 supplies power to electrical equipment used by users who perform tasks such as studying or office work on the tabletop 110. Here, the electrical equipment is an information terminal with a USB port, such as a smartphone, tablet computer, or notebook computer.

[0027] In this embodiment, two wiring ducts 10 are housed in the case 20. The two wiring ducts 10 are so-called DC ducts. DC power is supplied to the two wiring ducts 10 via cables W1 and W2 from an AC adapter connected to an AC power source such as a commercial AC power supply. For example, USB outlet plugs 200 are attached to the two wiring ducts 10. When an electrical device is connected to the USB outlet plug 200 attached to the wiring duct 10 via a USB cable, DC power is supplied from the wiring duct 10 to the electrical device via the USB outlet plug 200.

[0028] The case body 21 of case 20 is formed in the shape of a long rectangular parallelepiped with the left-right direction being the longer side. Each of the two sides of the case body 21 along the longer side (for example, the front 21A and the rear 21B) is provided with a window hole 22 that exposes at least the opening 14 of the wiring duct 10. In this embodiment, the entire surface of the wiring duct 10 with the opening 14 is exposed through the window hole 22 of the case body 21. When describing the two wiring ducts 10 separately in the following description, the wiring duct 10 located on the front 21A of the case body 21 may be referred to as wiring duct 10A, and the wiring duct 10 located on the rear 21B of the case body 21 may be referred to as wiring duct 10B.

[0029] The two wiring ducts 10 (10A, 10B) are housed inside the case 20 such that their respective openings 14 face opposite each other (see Figure 6). In other words, the two wiring ducts 10 are housed inside the case 20 such that their respective openings 14 are exposed through the window holes 22 on the front 21A and rear 21B of the case body 21.

[0030] The two wiring ducts 10 have a symmetrical structure in the front-to-rear direction. Below, the wiring duct 10A located on the front surface 21A of the case body 21 will be described, and the wiring duct 10B located on the rear surface 21B of the case body 21 will not be described.

[0031] The wiring duct 10A comprises a duct rail 11 formed from a metal material into a long rectangular tube shape, and a feed-in cap 12 and an end cap 13 attached to the first and second ends in the longitudinal direction of the duct rail 11, respectively.

[0032] The duct rail 11 is formed in a rectangular tubular shape using a metal material such as aluminum, with the left-right direction being the longer side. A groove-shaped opening 14 extending along the longitudinal direction is provided on the front surface of the duct rail 11. The opening 14 is provided on the front surface of the duct rail 11, extending over the entire length.

[0033] A conductive bar 16A is arranged on the upper inner wall of the duct rail 11 via an insulating rail 15A made of synthetic resin. A conductive bar 16B is arranged on the lower inner wall of the duct rail 11 via an insulating rail 15B made of insulating synthetic resin. The conductive bars 16A and 16B are provided along the longitudinal direction of the duct rail 11, extending from the first end to the second end in the longitudinal direction of the duct rail 11, covering the entire length of the duct rail 11.

[0034] Furthermore, two fitting grooves 17 are provided on the upper and lower inner walls of the duct rail 11, between the mounting positions of the conductive bars 16A and 16B and the front surface of the duct rail 11. The two fitting grooves 17 are provided along the entire length of the duct rail 11 in the direction of its long side. The two fitting grooves 17 can be fitted with the fitting claws of the USB outlet plug 200 which is attached to the wiring duct 10. The USB outlet plug 200 is attached to the wiring duct 10A by fitting the fitting claws of the USB outlet plug 200 into the two fitting grooves 17. When the USB outlet plug 200 is attached to the wiring duct 10, the two contacts provided on the USB outlet plug 200 contact the conductive bars 16A and 16B, respectively, and a DC voltage is supplied from the conductive bars 16A and 16B to the USB outlet plug 200.

[0035] Each of the two conductive bars 16A and 16B is electrically connected to the cable W1 (see Figures 1 and 5) via a feed-in cap 12. Cable W1 is a sheathed cable with two core wires covered in insulating sheath. Of the two core wires of cable W1, the positive wire is electrically connected to conductive bar 16A, and the negative wire is electrically connected to conductive bar 16B, supplying a DC voltage to conductive bars 16A and 16B. Therefore, when the USB outlet plug 200 is attached to the wiring duct 10, a DC voltage is supplied to the USB outlet plug 200 from conductive bars 16A and 16B.

[0036] The feed-in cap 12 is connected to either the first or second end of the duct rail 11 in the longitudinal direction. In this embodiment, the feed-in cap 12 is connected to the first end (e.g., the left end) of the duct rail 11 in the longitudinal direction. The feed-in cap 12 is used to connect the two-core wires of the cable W1 to the two conductive bars 16A and 16B, respectively.

[0037] The feed-in cap 12 is equipped with two terminal devices to which the two-core wires of the cable W1 are each connected. The two terminal devices are, for example, screw terminals, and the two-core wires of the cable W1 are each connected to the two terminal devices.

[0038] The feed-in cap 12 is equipped with a plug-in connector 121 that is inserted into the first or second end of the duct rail 11 in the longitudinal direction. The plug-in connector 121 is provided with two connection terminals that are connected to two conductive bars 16A and 16B, respectively, which are held by the duct rail 11. The two connection terminals are electrically connected to two terminal devices to which the two-core wires of the cable W1 are respectively connected. Therefore, when the plug-in connector 121 of the feed-in cap 12 is connected to the first or second end of the wiring duct 10 in the longitudinal direction, the two conductive bars 16A and 16B are electrically connected to the cable W1 via the feed-in cap 12.

[0039] When the wiring duct 10 is housed in the case 20, the feed-in cap 12 of the wiring duct 10 is positioned closer to the first end 201 than to the second end 202 in the longitudinal direction of the case 20. More specifically, the case 20 has two opposing side walls 21C and 21D in the longitudinal direction, and the feed-in cap 12 of the wiring duct 10 is positioned close to the side wall 21C on the first end 201 side.

[0040] Furthermore, with the wiring duct 10 housed in the case 20, at least a portion of the cables W1 and W2 that supply power to the wiring duct 10 is housed in the case 20. Since at least a portion of the cables W1 and W2 are housed in the case 20, the possibility of the cables W1 and W2 being exposed on the surface 111 of the top plate 110 is reduced, improving the aesthetic design of the duct system 1 and allowing for effective use of the surface 111 of the top plate 110. In addition, the case 20 is fixed to the surface 111 of the top plate 110 with its first end 201 protruding outside the top plate 110 (see Figure 5), and a gap 23 is provided between the side wall 21C on the first end 201 side of the case 20 and the third piece 43c of the frame member 43, which will be described later. Parts of the cables W1 and W2 connected to the feed-in caps 12 of the two wiring ducts 10 are housed inside the case 20, and the cables W1 and W2 are pulled out downward through the gap 23 between the side wall 21C and the end face of the top plate 110. Therefore, the possibility of cables W1 and W2 being positioned above the surface 111 of the top plate 110 is reduced, improving the aesthetic design of the duct system 1 and allowing for effective use of the surface 111 of the top plate 110.

[0041] The end cap 13 is attached to the end of the duct rail 11 in the longitudinal direction, specifically the end where the feed-in cap 12 is not attached (for example, the second end in this embodiment).

[0042] The end cap 13 is formed from, for example, synthetic resin. The end cap 13 is used to close the end of the duct rail 11 that does not have a feed-in cap 12 attached, which is one of the first and second ends of the duct rail 11.

[0043] In this embodiment, a USB outlet plug 200, such as the one shown in Figure 4, can be connected to the wiring duct 10.

[0044] The USB power outlet plug 200 comprises a rectangular prism-shaped housing 210. The front of the housing 210 is provided with a first socket 211 and a second socket 212. The first socket 211 is, for example, a USB Type-A plug socket. The second socket 212 is, for example, a USB Type-C plug socket. In other words, the USB power outlet plug 200 is provided with two first sockets 211 and second sockets 212 that are of different standards.

[0045] The rear surface of the housing 210 is provided with a plug that is inserted into the duct rail 11 through an opening 14 in the duct rail 11. When the housing 210 is rotated, thereby rotating the plug, the mating claws on the plug engage with the mating groove 17 of the duct rail 11. At this time, two contacts on the plug make contact with two conductive bars 16A and 16B, respectively, and power is supplied from the two conductive bars 16A and 16B to the USB outlet plug 200. When an electrical device is connected to the first outlet 211 or the second outlet 212 of the USB outlet plug 200 via a USB cable, DC power is supplied to the electrical device from the wiring duct 10 through the USB outlet plug 200.

[0046] (2.1.2) Case Case 20 is formed from a metal material such as aluminum, in the shape of a rectangular parallelepiped with the left-right direction being the longer side.

[0047] The front 21A and rear 21B of the case 20 are each provided with window openings 22 into which the wiring duct 10 can be inserted.

[0048] For example, the wiring duct 10A is inserted from the front into a window opening 22 provided on the front surface 21A of the case 20 and is screwed to the case 20 using fastening members such as screws. The wiring duct 10B is inserted from the rear into a window opening 22 provided on the rear surface 21B of the case 20 and is screwed to the case 20 using fastening members such as screws.

[0049] Thus, in this embodiment, the duct system 1 comprises a plurality of wiring ducts 10, and the plurality of wiring ducts 10 are housed in a case 20. Specifically, the duct system 1 comprises two wiring ducts 10A and 10B, and the two wiring ducts 10A and 10B are housed in a case 20.

[0050] With the two wiring ducts 10A and 10B mounted on the case 20, the openings 14 in each of the two wiring ducts 10A and 10B are exposed through the window holes 22 provided on the front 21A and rear 21B of the case body 21, respectively. Therefore, the user can connect a USB power plug 200 to the opening 14 of the wiring duct 10 that is exposed through the window hole 22 of the case 20.

[0051] (2.1.3) Fixed part The case 20 is fixed to the surface 111 of the top plate 110 via the fixing part 30.

[0052] In this embodiment, the fixing portion 30 includes a joining member 31 and a clamping member 40.

[0053] The joining member 31 joins the case 20 to the top plate 110 by adhesive, bonding, or suction.

[0054] In this embodiment, the joining member 31 is, for example, an adhesive material formed in the shape of a sheet. The first surfaces in the thickness direction of the three joining members 31 are attached to the lower surface of the case body 21 (the surface facing the top plate 110). In this embodiment, the end of the case body 21 on the side of the first end 201 is fixed to the top plate 110 with a clamp member 40. Therefore, on the lower surface of the case body 21, the first surfaces of the three joining members 31 are attached to the end on the side of the second end 202 and to two intermediate parts between the first end 201 and the second end 202. Since the case body 21 is fixed to the surface 111 of the top plate 110 by the joining members 31, the case body 21 can be fixed to the surface 111 of the top plate 110 without using fastening members such as screws.

[0055] When the case body 21 is placed on the surface 111 of the top plate 110, the second surfaces in the thickness direction of the three joining members 31 attached to the underside of the case body 21 are adhesively fixed to the surface 111 of the top plate 110.

[0056] Since the case body 21 is attached to the surface 111 of the top plate 110 by adhesive via the joining member 31, the possibility of the surface 111 of the top plate 110 being damaged is reduced even when the case body 21 is attached to the surface 111 of the top plate 110.

[0057] In this embodiment, the case body 21 is adhesively fixed to the surface 111 of the top plate 110 using three connecting members 31, but the number of connecting members 31 can be appropriately changed depending on the length of the case body 21, etc.

[0058] Furthermore, in this embodiment, the joining member 31 adhesively joins the case 20 to the top plate 110, but the joining member 31 may be an adhesive or the like, and the case 20 may be joined to the top plate 110 by adhesive. Alternatively, the joining member 31 may be a suction cup or the like that can adhere to the surface 111 of the top plate 110, and the joining member 31 may join the case 20 to the top plate 110 by suction.

[0059] As shown in Figures 1, 3, 5, and 7, the clamp member 40 has a support portion 41 and a clamp fixing portion 42.

[0060] The support portion 41 extends along the longitudinal direction of the wiring duct 10, and at least a portion of the case 20 is attached to it. The clamp fixing portion 42 is fixed to the top plate 110 by clamping the top plate 110.

[0061] The support portion 41 is formed in the shape of a rectangular plate from a metal material. In this embodiment, since the longitudinal direction of the wiring duct 10 and the longitudinal direction of the case 20 coincide, it can be said that the support portion 41 extends along the longitudinal direction of the case 20.

[0062] The support portion 41 is attached to the bottom of the case 20. More specifically, the support portion 41 is attached to the bottom of the case 20 on the side of the first end 201 in the longitudinal direction. The support portion 41 is fixed to the lower surface of the case body 21, for example, using a number of screws. When the support portion 41 is fixed to the lower surface of the case body 21, the lower surface of the support portion 41 and the lower surface of the connecting member 31 attached to the lower surface of the case body 21 are located at approximately the same height in the vertical direction. However, when the support portion 41 is fixed to the lower surface of the case body 21, the lower surface of the connecting member 31 attached to the lower surface of the case body 21 may be located slightly lower than the lower surface of the support portion 41.

[0063] The clamp fixing part 42 is fixed to the top plate 110 by clamping the edge of the top plate 110. Since the support part 41 is attached to the bottom of the first end 201 side of the case 20, when the clamp fixing part 42 is fixed to the end face of the top plate 110, the case 20 is positioned on the surface 111 of the top plate 110 so as to extend in a direction perpendicular to the end face of the top plate 110. In this embodiment, wiring ducts 10A and 10B are arranged on the front 21A and rear 21B of the case body 21, respectively, and the clamp fixing part 42 is attached, for example, to the center of the short side of the top plate 110 at one end (for example, the left end) in the longitudinal direction of the top plate 110. At this time, the case body 21 is positioned so as to extend along the longitudinal direction of the top plate 110 from the center of the short side at the left end of the top plate 110. For example, consider a scenario where chairs are placed on both sides of the tabletop 110 in the shorter direction, and a user sitting in a chair places an information terminal on the surface 111 of the tabletop 110 to perform work. In this case, the information terminal can be connected via a USB cable to a USB outlet plug 200 attached to a wiring duct 10 provided on the front 21A and rear 21B of the case body 21, and power is supplied to the information terminal from the USB outlet plug 200.

[0064] Furthermore, since the clamp fixing part 42 can be attached to any position on the edge of the top plate 110, the case 20 can be attached to any position on the surface 111 of the top plate 110.

[0065] The clamp fixing portion 42 is equipped with a tightening portion 44 facing the support portion 41. When the tightening portion 44 is tightened with the top plate 110 sandwiched between the support portion 41 and the tightening portion 44, the support portion 41 and the case 20 attached to the support portion 41 are fixed to the top plate 110.

[0066] Furthermore, the clamp fixing portion 42 further includes a frame member 43. The frame member 43 is formed in a U shape, with a first piece 43a to which the support portion 41 is fixed, and a second piece 43b facing the first piece 43a, connected via a third piece 43c. The fastening portion 44 has a clamp screw 45 that is screwed into a threaded portion 43d provided on the second piece 43b. By screwing the clamp screw 45 into the threaded portion 43d of the second piece 43b, the top plate 110 is fixed between the tip of the clamp screw 45 and the support portion 41.

[0067] More specifically, the frame member 43 is formed in a U-shape when viewed from the side, using a metal material such as aluminum. The first piece 43a of the frame member 43 is fixed to the support part 41 by an appropriate method such as adhesive or welding, while overlapping the upper surface of the support part 41.

[0068] The clamp screw 45 is screwed into the threaded portion 43d of the second piece 43b. The first end of the clamp screw 45 protrudes from the second piece 43b toward the first piece 43a. The first end of the clamp screw 45 faces the support portion 41, and the first end of the clamp screw 45 is provided with a dome-shaped contact portion 46 that contacts the lower surface of the top plate 110. The second end of the clamp screw 45 protrudes from the second piece 43b in the opposite direction to the first piece 43a, and a knob 47 is attached to the second end of the clamp screw 45.

[0069] In this state, with the top plate 110 sandwiched between the support portion 41 and the contact portion 46 provided at the first end of the clamp screw 45, when the installer turns the knob 47 to rotate the clamp screw 45, the case 20 is fixed to the surface 111 of the top plate 110 with the top plate 110 sandwiched between the contact portion 46 and the support portion 41.

[0070] In this embodiment, with the support portion 41 and the case 20 fixed to the top plate 110, the fastening portion 44 is located below the top plate 110. Because the fastening portion 44 is located below the top plate 110, the aesthetic design of the duct system 1 is improved and the surface 111 of the top plate 110 can be effectively utilized, compared to the case where the fastening portion 44 is located above the top plate 110.

[0071] Furthermore, with the case 20 fixed to the top plate 110 by the fixing part 30, the support part 41 is located below the wiring duct 10. Because the support part 41 is located below the wiring duct 10, the case 20 can be made smaller compared to when the support part 41 is located outside the area below the wiring duct 10. In addition, because the support part 41 is located below the wiring duct 10, when the case 20 is fixed to the top plate 110, the support part 41 is less visible from the outside of the case 20, which has the advantage of improving the design of the duct system 1.

[0072] Furthermore, with the case 20 fixed to the top plate 110, the installer can remove the case 20 from the top plate 110 by rotating the knob 47 so that the fastening part 44 moves away from the top plate 110, and applying force to the case body 21 to detach the three connecting members 31 from the top plate 110. In this embodiment, since the case 20 is not fixed to the top plate 110 with screws or the like, the case 20 can be fixed without damaging the top plate 110.

[0073] (2.2) Fixtures The fixture 100 comprises a tabletop 110 and two legs 112 that support the tabletop 110.

[0074] The top panel 110, when viewed from above, has a rectangular shape.

[0075] The case 20, which houses the wiring duct 10, is placed on the surface 111 of the top plate 110 and fixed to the top plate 110 via fixing parts 30 (in this embodiment, a joining member 31 and a clamp member 40).

[0076] The case body 21 is fixed to the center of the left end of the top plate 110 in the short direction using a clamp member 40. In addition, three connecting members 31 are attached to the underside of the case body 21 at three locations, including the end on the second end 202 side, and the case body 21 is adhesively fixed to the surface 111 of the top plate 110 by the three connecting members 31.

[0077] As a result, the case 20 is positioned in the center of the top plate 110 in the short direction, extending along the long direction of the top plate 110.

[0078] (3) Variant The above embodiments are merely one of many embodiments of this disclosure. The above embodiments can be modified in various ways depending on the design, etc., as long as they achieve the objectives of this disclosure.

[0079] The following lists some modifications of the above embodiment. The modifications described below can be combined and applied as appropriate.

[0080] In the above embodiment, two wiring ducts 10 are housed in the case 20, but the number of wiring ducts 10 housed in the case 20 may be one or three or more.

[0081] In the above embodiment, the fixing portion 30 includes a joining member 31 and a clamping member 40, but the fixing portion 30 may include only the joining member 31. That is, the case 20 may be fixed to the surface 111 of the top plate 110 by one or more joining members 31.

[0082] Furthermore, the fixing portion 30 may also include two clamping members 40, and the first end 201 and the second end 202 in the longitudinal direction of the case 20 may be fixed to the top plate 110, respectively, by the two clamping members 40.

[0083] In this case, the joining member 31 can be omitted, and the case 20 can be securely fixed to the top plate 110 of the fixture 100 using the two clamp members 40.

[0084] In the above embodiment, a USB outlet plug 200 is connected to the wiring duct 10, but the electrical equipment connected to the wiring duct 10 is not limited to the USB outlet plug 200. Other electrical equipment such as lighting fixtures with light sources such as LEDs, or sensor devices with sensors such as temperature sensors may be connected to the wiring duct 10.

[0085] (summary) Based on the embodiments described above, the following aspects are disclosed.

[0086] The duct system (1) of the first embodiment comprises a long wiring duct (10, 10A, 10B), a case (20), and a fixing part (30). The case (20) houses the wiring duct (10, 10A, 10B) with its opening (14) exposed. The fixing part (30) fixes the case (20) to the top plate (110) with the case (20) resting on the surface (111) of the top plate (110).

[0087] In this embodiment, the case (20) housing the wiring duct (10) is fixed to the top plate (110) while resting on the surface (111) of the top plate (110). Therefore, compared to the case (20) being attached to the surface (111) of the top plate (110) with a gap between the entire case (20) and the surface (111) of the top plate (110), the height from the surface (111) of the top plate (110) to the upper end of the case (20) can be reduced. Therefore, in this embodiment, a duct system (1) that can reduce the height from the surface (111) of the top plate (110) can be provided.

[0088] In the duct system (1) of the second embodiment, the fixing part (30) includes a joining member (31) in the first embodiment. The joining member (31) joins the case (20) to the top plate (110) by adhesive, bonding, or suction.

[0089] According to this embodiment, since the case (20) is not screw-fixed to the top plate (110) with fastening members such as screws, the case (20) can be fixed to the top plate (110) without using fastening members such as screws.

[0090] In the third embodiment of the duct system (1), in the first embodiment, the fixing part (30) includes a joining member (31) and a clamp member (40). The joining member (31) joins the case (20) to the top plate (110) by adhesive, bonding, or suction. The clamp member (40) has a support part (41) and a clamp fixing part (422). The support part (41) extends along the longitudinal direction of the wiring duct (10, 10A, 10B) and to which at least a portion of the case (20) is attached. The clamp fixing part (422) is fixed to the top plate (110) by clamping the top plate (110).

[0091] In this embodiment, since the case (20) is not screw-fixed to the top plate (110) with fastening members such as screws, the case (20) can be fixed to the top plate (110) without using fastening members such as screws. Furthermore, the case (20) can be fixed more firmly to the top plate (110) compared to the case where the case (20) is fixed to the top plate (110) using only the connecting member (31).

[0092] In the duct system (1) of the fourth embodiment, in the first embodiment, the fixing portion (30) includes two clamp members (40). Each of the two clamp members (40) has a support portion (41) and a clamp fixing portion (422). The support portion (41) extends along the longitudinal direction of the wiring ducts (10, 10A, 10B) and to which at least a portion of the case (20) is attached. The clamp fixing portion (422) is fixed to the top plate (110) by clamping the top plate (110). The two clamp members (40) fix the first end (201) and the second end (202) of the case (20) in the longitudinal direction to the top plate (110), respectively.

[0093] In this embodiment, since the case (20) is not screw-fixed to the top plate (110) with fastening members such as screws, the case (20) can be fixed to the top plate (110) without using fastening members such as screws. Furthermore, the case (20) can be fixed more firmly to the top plate (110) compared to the case where the case (20) is fixed to the top plate (110) using only the connecting member (31).

[0094] In the duct system (1) of the fifth embodiment, in the third or fourth embodiment, the clamp fixing part (422) has a fastening part (44) facing the support part (41). The support part (41) and the case (20) attached to the support part (41) are fixed to the top plate (110) by tightening the fastening part (44) with the top plate (110) sandwiched between the support part (41) and the fastening part (44).

[0095] According to this embodiment, the case (20) can be fixed to the top plate (110) with the top plate (110) sandwiched between the support portion (41) by the fastening portion (44).

[0096] In the duct system (1) of the sixth embodiment, the support portion (41) and the case (20) are fixed to the top plate (110), and the fastening portion (44) is located below the top plate (110).

[0097] According to this embodiment, since the fastening portion (44) is not located on the upper side of the top plate (110), the surface space (111) of the top plate (110) can be used effectively.

[0098] In the duct system (1) of the seventh embodiment, as in the fifth embodiment, the clamp fixing portion (422) further comprises a frame member (43). The frame member (43) is formed in a U shape, with a first piece (43a) to which the support portion (41) is fixed and a second piece (43b) opposite the first piece (43a) connected via a third piece (43c). The clamping portion (44) has a clamp screw (45) that is screwed into a threaded portion (43d) provided on the second piece (43b). The top plate (110) is fixed between the tip of the clamp screw (45) and the support portion (41) by screwing the clamp screw (45) into the threaded portion (43d) of the second piece (43b).

[0099] According to this embodiment, the case (20) can be fixed to the top plate (110) while the top plate (110) is sandwiched between the tip of the clamp screw (45) and the support part (41).

[0100] In the duct system (1) of the eighth embodiment, in the third or fourth embodiment, the case (20) is fixed to the top plate (110) by the fixing part (30), and the support part (41) is located below the wiring ducts (10, 10A, 10B).

[0101] According to this embodiment, since the support portion (41) is located below the wiring ducts (10, 10A, 10B), the space on the surface (111) of the top plate (110) can be effectively utilized.

[0102] In the duct system (1) of the ninth embodiment, in any of the first to eighth embodiments, with the wiring ducts (10, 10A, 10B) housed in a case (20), at least a portion of the cables (W1, W2) that supply power to the wiring ducts (10, 10A, 10B) are housed in the case (20).

[0103] According to this embodiment, the possibility of cables (W1, W2) being placed on the surface (111) of the top plate (110) can be reduced.

[0104] The duct system (1) of the tenth embodiment comprises a plurality of wiring ducts (10, 10A, 10B). The plurality of wiring ducts (10, 10A, 10B) are housed in a case (20).

[0105] According to this embodiment, a case (20) containing multiple wiring ducts (10, 10A, 10B) can be fixed to the surface (111) of the top plate (110).

[0106] The eleventh embodiment of the fixture (100) comprises a duct system (1) according to any of the first to tenth embodiments, and a top plate (110) to which the fixing part (30) is fixed.

[0107] According to this embodiment, it is possible to provide a fixture (100) equipped with a duct system (1) that can reduce the height from the surface (111) of the top plate (110).

[0108] The case (20) of the twelfth embodiment is provided in the duct system (1) of any of the first to tenth embodiments. The case (20) comprises a case body (21) that houses the wiring ducts (10, 10A, 10B). The case body (21) is provided with a window hole (22) that exposes at least the openings (14) of the wiring ducts (10, 10A, 10B). The case body (21) is fixed to the top plate (110) while resting on the surface (111) of the top plate (110).

[0109] According to this embodiment, a case (20) can be provided that can reduce the height from the surface (111) of the top plate (110).

[0110] The configurations relating to the second to tenth aspects are not essential to the duct system (1) and can be omitted as appropriate. [Explanation of Symbols]

[0111] 1. Duct System 10, 10A, 10B Wiring Duct 14 Opening 20 cases 21 Case body 22 Window holes 30 Fixed part 31 Joining member 40 Clamp member 41 Support part 42 Clamp fixing part 43 Frame members 43a 1st piece 43b 2nd piece 43c 3rd piece 43d Threaded part 44. Fastening part 45 clamp screw 100 fixtures 110 Top plate 111 Surface 201 1st end 202 2nd end W1, W2 Cable

Claims

1. A long wiring duct, A case for housing the wiring duct in such a state that the opening of the wiring duct is exposed, The device includes a fixing part for securing the case to the top plate while the case is placed on the surface of the top plate, Duct system.

2. The fixing part includes a joining member that joins the case to the top plate by adhesive, bonding, or suction. The duct system according to claim 1.

3. The aforementioned fixing part is A joining member for joining the case to the top plate by adhesive, bonding, or suction, Includes a clamping member, The clamp member is A support portion extending along the longitudinal direction of the wiring duct, to which at least a portion of the case is attached, It has a clamp fixing part that is fixed to the top plate by sandwiching the top plate, The duct system according to claim 1.

4. The aforementioned fixing portion includes two clamp members, Each of the two clamp members is A support portion extending along the longitudinal direction of the wiring duct, to which at least a portion of the case is attached, It has a clamp fixing part that is fixed to the top plate by sandwiching the top plate, The two clamp members fix the first and second ends of the case in the longitudinal direction to the top plate, respectively. The duct system according to claim 1.

5. The clamp fixing portion has a tightening portion facing the support portion, The top plate is sandwiched between the support portion and the fastening portion, and the fastening portion is tightened, thereby fixing the support portion and the case attached to the support portion to the top plate. The duct system according to claim 3 or 4.

6. With the support portion and the case fixed to the top plate, the fastening portion is located below the top plate. The duct system according to claim 5.

7. The clamp fixing portion further comprises a frame member formed in a U shape, in which a first piece to which the support portion is fixed and a second piece opposite the first piece are connected via a third piece. The clamping portion has a clamp screw that is screwed into a threaded portion provided on the second piece. The clamp screw is screwed into the threaded portion of the second piece, thereby fixing the top plate between the tip of the clamp screw and the support portion. The duct system according to claim 5.

8. With the case fixed to the top plate by the aforementioned fixing part, The support portion is located below the wiring duct. The duct system according to claim 3 or 4.

9. With the wiring duct housed in the case, at least a portion of the cable supplying power to the wiring duct is housed in the case. The duct system according to any one of claims 1 to 4.

10. The system comprises multiple wiring ducts, The plurality of wiring ducts are housed in the case. The duct system according to any one of claims 1 to 4.

11. A duct system according to any one of claims 1 to 4, The system comprises the top plate to which the fixing part is fixed. furniture.

12. A case comprising the duct system according to any one of claims 1 to 4, The case body comprises the aforementioned wiring duct, The case body is provided with a window opening that exposes at least the opening of the wiring duct. The case body is fixed to the top plate while resting on the surface of the top plate. case.

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