Duct system

Abstract

The purpose of the present disclosure is to improve convenience of use. This duct system (100) comprises: a first fixing part (1) and at least one second fixing part (2). At least one wiring duct (4) is attached to the first fixing part (1). The at least one second fixing part (2) fixes the first fixing part (1) to a top plate (31). The first fixing part (1) has a partition attachment section (P1) and a cover attachment section (Q1). A partition (50) can be attached to and detached from the partition attachment section (P1). A cover (C1) which covers the partition attachment section (P1) can be attached to and detached from the cover attachment section (Q1).

Description

Technical Field

[0001] The present disclosure generally relates to a duct system, and more particularly to a duct system in which partitions can be attached and detached.

Background Art

[0002] Patent Document 1 discloses a wiring device in a desk with a desktop panel (partition). In a desk with a desktop panel, the desktop panel is disposed at a boundary between top plates facing each other front and back. An opening for inserting wiring is formed between the front and back top plates, and this opening is covered by a detachable wiring cover.

[0003] However, when the desktop panel (partition) is unnecessary, the desktop panel and the structure for attaching the desktop panel to the desk may be obstructive to the user and may impair convenience.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] The present disclosure has been made in view of such problems, and an object thereof is to provide a duct system capable of improving convenience.

[0006] A duct system according to an aspect of the present disclosure includes a first fixing portion and at least one second fixing portion. a cover,It is provided with. At least one wiring duct is attached to the first fixing part. The at least one second fixing part is provided at at least one end of the first fixing part. The at least one second fixing part fixes the first fixing part to the top plate. The first fixing part has a partition mounting part and a cover mounting part. The partition mounting part enables the attachment and detachment of the partition. The cover mounting part covers the partition mounting part the The cover can be attached and detached The partition mounting portion has a plurality of holes for mounting the partition. The cover covers the plurality of holes. A duct system according to an aspect of the present disclosure includes a first fixing portion and at least one second fixing portion. At least one wiring duct is attached to the first fixing portion. The at least one second fixing portion is provided at at least one end of the first fixing portion. The at least one second fixing portion fixes the first fixing portion to the top plate. The first fixing portion has a partition mounting portion and a cover mounting portion. The partition mounting portion enables attachment and detachment of a partition. The cover mounting portion enables attachment and detachment of a cover that covers the partition mounting portion. The partition mounting portion enables attachment and detachment of an attachment that supports the partition. The partition can be attached to the partition mounting portion via the attachment. A duct system according to an aspect of the present disclosure includes a first fixing portion, at least one second fixing portion, a first wiring duct, and a second wiring duct. At least one wiring duct is attached to the first fixing portion. The at least one second fixing portion is provided at at least one end of the first fixing portion. The at least one second fixing portion fixes the first fixing portion to the top plate. The first wiring duct and the second wiring duct are the at least one wiring duct. The first fixing portion has a partition mounting portion and a cover mounting portion. The partition mounting portion enables attachment and detachment of a partition. The cover mounting portion enables attachment and detachment of a cover that covers the partition mounting portion. The first wiring duct is attached to the front surface of the first fixing portion, and the second wiring duct is attached to the rear surface of the first fixing portion. The partition mounting portion is provided on the upper surface of the first fixing portion. A duct system according to one aspect of the present disclosure includes a first fixing portion, at least one second fixing portion, and a cover. At least one wiring duct is attached to the first fixing portion. The at least one second fixing portion is provided at at least one end of the first fixing portion. The at least one second fixing portion fixes the first fixing portion to a top plate. The first fixing portion has a partition mounting portion and a cover mounting portion. The partition mounting portion enables attachment and detachment of a partition. The cover mounting portion enables attachment and detachment of the cover that covers the partition mounting portion. The cover has a back surface facing the first fixing portion and a front surface opposite to the back surface. The cover has a first rib, a second rib, and a third rib. The first rib, the second rib, and the third rib are arranged side by side in the width direction of the cover on the back surface of the cover. The first rib is provided between the second rib and the third rib. A duct system according to one aspect of the present disclosure includes a first fixing portion and at least one second fixing portion. At least one wiring duct is attached to the first fixing portion. The at least one second fixing portion is provided at at least one end of the first fixing portion. The at least one second fixing portion fixes the first fixing portion to a top plate. The first fixing portion has a partition mounting portion and a cover mounting portion. The partition mounting portion enables attachment and detachment of a partition. The cover mounting portion enables attachment and detachment of the cover that covers the partition mounting portion. The first fixing portion has the partition mounting portion and the cover mounting portion on the same plane.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, the duct system according to the embodiment will be described with reference to the drawings. However, the following embodiment is merely one of various embodiments of the present disclosure. The following embodiment can be variously modified according to design and the like as long as the object of the present disclosure can be achieved. Also, each drawing described in the following embodiment is a schematic diagram, and the ratio of the size and thickness of each component in the drawing does not necessarily reflect the actual dimensional ratio.

[0009] (Embodiment) (Overview) As shown in FIGS. 1 and 3, the duct system 100 includes at least one wiring duct 4, and an adapter 9A (see FIG. 8) is attached to the wiring duct 4. The adapter 9A is electrically connected to an electrical device 20 (see FIG. 10). The duct system 100 receives power supply from a power source 30 (see FIG. 10) such as a commercial power supply or a self-generated power facility, and supplies this power to the electrical device 20 via the adapter 9A.

[0010] As shown in FIG. 1, the duct system 100 of the present embodiment includes a first fixing portion 1 and at least one second fixing portion 2. At least one wiring duct 4 is attached to the first fixing portion 1. At least one second fixing portion 2 is provided at at least one end of the first fixing portion 1. At least one second fixing portion 2 fixes the first fixing portion 1 to the ceiling plate 31. The first fixing portion 1 has a partition attachment portion P1 (see FIG. 3) and a cover attachment portion Q1 (see FIG. 6). The partition attachment portion P1 enables attachment and detachment of the partition 50. The cover attachment portion Q1 enables attachment and detachment of a cover C1 that covers the partition attachment portion P1.

[0011] According to this embodiment, when the partition 50 is not used, the partition mounting portion P1 can be covered with the cover C1, so that it is possible to prevent the partition mounting portion P1 from interfering with the user's work or the like. For example, it is possible to prevent an object from getting caught on the partition mounting portion P1. Therefore, the duct system 100 of this embodiment can improve convenience.

[0012] In addition, by covering the partition mounting portion P1 with the cover C1, the design of the duct system 100 can be improved.

[0013] The partition mounting portion P1 of this embodiment is a through-hole through which the screw SC2 (see FIG. 3) passes. The partition mounting portion P1 can mount and remove the attachment 51 that supports the partition 50. More specifically, the attachment 51 is screwed to the partition mounting portion P1. The partition 50 can be attached to the partition mounting portion P1 via the attachment 51. Thus, in the present disclosure, "the attachment and removal of the partition 50 are possible" includes the case where "the attachment and removal of the partition 50 are possible via the attachment 51".

[0014] In addition, the cover mounting portion Q1 of this embodiment is a through-hole through which the screw SC3 (see FIG. 6) passes. The cover C1 is screwed to the cover mounting portion Q1.

[0015] When using the partition 50, the attachment 51 may be attached to the partition mounting portion P1 of the first fixing portion 1. However, since the attachment 51 has a support plate 514 (see FIG. 3) protruding upward, when the partition 50 is not used, if the attachment 51 remains attached to the partition mounting portion P1, the support plate 514 may get in the way. On the other hand, in this embodiment, since the attachment 51 can be removed and the cover C1 can be attached, it is possible to prevent the support plate 514 of the attachment 51 from getting in the way.

[0016] In this embodiment, a desk 3, which is a piece of furniture, has a tabletop 31. Here, "furniture" is a general term for furniture and fixtures such as those used in houses or non-residential buildings. Note that the furniture having the tabletop 31 is not limited to the desk 3, and may be a table, a workbench, etc. used as a platform for placing objects. Another example of furniture is a shelf, a box, a dresser, a bed, a whiteboard, a screen, a partition, and a bench, etc.

[0017] As described above, a partition 50 can be attached to the first fixing portion 1. A "partition" is also called a partition or a screen.

[0018] The partition 50 is fixed above the tabletop 31. Thereby, the space above the tabletop 31 is partitioned into a front space and a rear space. Some people (hereinafter referred to as "the first person") sit in front of the desk 3, and some other people (hereinafter referred to as "the second person") sit behind the desk 3. Since the space between the first person and the second person is partitioned by the partition 50, the possibility of droplet infection between the first person and the second person can be reduced.

[0019] (Details) (1) Overall configuration In the following description, the thickness direction of the partition 50 is defined as the front-rear direction, the longitudinal direction of the partition 50 is defined as the left-right direction, and the short-side direction of the partition 50 is defined as the up-down direction. However, these definitions are not intended to limit the usage direction of the duct system 100. Also, the arrows indicating front-rear, left-right, and up-down in FIG. 1 and the like are merely shown for the purpose of explanation and do not have a physical entity.

[0020] As shown in FIGS. 1 and 2, the duct system 100 includes a wiring duct fixture F1, two wiring ducts 4 (see FIG. 3), two feed-ins 6 (only one is shown in FIG. 1) for supplying power from a power source 30 (see FIG. 10) to each of the two wiring ducts 4, two end caps CP1 (only one is shown in FIG. 1), and a connector portion 8 (see FIG. 7).

[0021] Further, the duct system 100 may further include at least one of the partition unit 5 and the cover C1 (see FIG. 4). The partition unit 5 has a partition 50 and an attachment 51.

[0022] One of the partition unit 5 and the cover C1 is attached to the upper surface 10U (see FIG. 3) of the first fixing portion 1 of the duct system 100. The partition unit 5 and the cover C1 are each detachable from the first fixing portion 1.

[0023] The duct system 100 is attached to the desk 3. As shown in FIG. 1, the desk 3 has a top plate 31 and a plurality (four in FIG. 1) of legs 32. The planar shape of the top plate 31 is, for example, rectangular. The rectangle is a concept including a square and a rectangle. The thickness direction of the top plate 31 is along the vertical direction. The plurality of legs 32 project downward from the top plate 31. The plurality of legs 32 support the top plate 31.

[0024] The wiring duct 4 is fixed to the top plate 31 of the desk 3 via the wiring duct fixture F1. The wiring duct 4 supplies power to the electric device 20 (see FIG. 10) used by the user on the top plate 31 or around the desk 3. Note that the type of the electric device 20 is not particularly limited. Examples of the electric device 20 include a computer terminal (such as a personal computer, a smartphone, and a tablet terminal), an accessory device of the computer terminal (such as a monitor, a speaker, and a microphone), a lighting device (such as a desk lamp), a network camera, a sensor (such as a temperature sensor, a humidity sensor, and an illuminance sensor), a game machine, and an air conditioning device (such as a desktop fan).

[0025] (2.1) Wiring Duct Fixture As shown in FIG. 1, the wiring duct fixture F1 includes a first fixing portion 1 and a plurality (two in FIG. 1) of second fixing portions 2.

[0026] The first fixing part 1 is formed of a metal such as aluminum as a material. The shape of the first fixing part 1 is a rail shape extending in the left - right direction. Also, as shown in FIG. 3, a groove part 11 is formed on the front surface 10F of the first fixing part 1. A groove part 12 is formed on the rear surface 10B of the first fixing part 1. The groove parts 11 and 12 extend in the left - right direction. The groove parts 11 and 12 are provided from the left end to the right end of the first fixing part 1.

[0027] The groove part 11 opens forward on the front surface 10F of the first fixing part 1. The groove part 12 opens rearward on the rear surface 10B of the first fixing part 1. In the present embodiment, the groove part 11 houses one wiring duct 4 (the first wiring duct 41), and the groove part 12 houses one wiring duct 4 (the second wiring duct 42). That is, two wiring ducts 4 (the first wiring duct 41 and the second wiring duct 42) are attached side - by - side in the front - rear direction to the first fixing part 1. Note that at least one of the groove parts 11 and 12 may house a plurality of wiring ducts 4.

[0028] Thus, the duct system 100 of the present embodiment includes, as at least one wiring duct 4, a first wiring duct 41 and a second wiring duct 42. The first wiring duct 41 is attached to the front surface 10F of the first fixing part 1, and the second wiring duct 42 is attached to the rear surface 10B of the first fixing part 1. Also, a partition mounting part P1 (see FIG. 3) is provided on the upper surface 10U of the first fixing part 1. Further, the first fixing part 1 has the partition mounting part P1 and a cover mounting part Q1 (see FIG. 6) on the same surface. That is, the partition mounting part P1 and the cover mounting part Q1 are provided on the upper surface 10U of the first fixing part 1.

[0029] Also, as shown in FIG. 1, a feed - in 6 (feed - in 61) for supplying power to the first wiring duct 41 is housed at the right - end part of the groove part 11, and an end - cap CP1 is housed at the left - end part of the groove part 11. More specifically, the end - cap CP1 is attached to the left end of the first wiring duct 41, and the feed - in 61 is attached to the right end of the first wiring duct 41.

[0030] At the right end of the groove portion 12, a feed-in 6 (feed-in 62) for supplying power to the second wiring duct 42 is accommodated, and at the left end of the groove portion 12, an end cap CP1 is accommodated. More specifically, the end cap CP1 is attached to the left end of the second wiring duct 42, and the feed-in 62 is attached to the right end of the second wiring duct 42.

[0031] Note that the feed-in 61 may be accommodated at the left end of the groove portion 11. In this case, the end cap CP1 is accommodated at the right end of the groove portion 11. Also, the feed-in 62 may be accommodated at the left end of the groove portion 12. In this case, the end cap CP1 is accommodated at the right end of the groove portion 12.

[0032] As shown in FIGS. 1 and 2, the second fixing portions 2 are respectively provided at both longitudinal ends of the first fixing portion 1. That is, the wiring duct fixture F1 includes two second fixing portions 2 (second fixing portions 21 and 22). The second fixing portions 21 and 22 fix the first fixing portion 1 to the top plate 31. That is, the second fixing portions 21 and 22 fix the first wiring duct 41 and the second wiring duct 42 to the top plate 31. Hereinafter, the second fixing portion 21 provided at the first end portion (right end portion) in the longitudinal direction of the first fixing portion 1 among the second fixing portions 21 and 22 will be described. Since the second fixing portion 22 provided at the second end portion (left end portion) in the longitudinal direction of the first fixing portion 1 has a structure symmetric to the left and right with the second fixing portion 21 described below, a detailed description of the second fixing portion 22 will be omitted.

[0033] As shown in FIG. 7, the second fixing portion 21 has a stay portion 23. The stay portion 23 protrudes downward from the right end of the first fixing portion 1.

[0034] The stay portion 23 has a support portion 25, an insertion portion 26, and a base portion 24.

[0035] The support portion 25 is formed in a flat plate shape extending in the vertical direction. The insertion portion 26 is provided continuously with the upper end of the support portion 25 and protrudes from the upper end of the support portion 25 toward the first fixing portion 1 side (left side). The insertion portion 26 is formed in a flat plate shape. The insertion portion 26 is inserted into the mounting groove 13 provided in the first fixing portion 1 along the lower surface of the first fixing portion 1 from the right side surface of the first fixing portion 1. In a state where the insertion portion 26 is inserted into the mounting groove 13, the insertion portion 26 is fixed to the first fixing portion 1 from below, for example, by screwing, so that the second fixing portion 21 is fixed to the right end portion of the first fixing portion 1.

[0036] The base portion 24 is continuous with the lower end of the support portion 25. The base portion 24 has an upper surface portion 241, an abutting portion 242, and a lower surface portion 243. The upper surface portion 241 is formed in a flat plate shape protruding from the lower end of the support portion 25 toward the side opposite to the first fixing portion 1 (right side). The upper surface portion 241 is placed on the top plate 31. The abutting portion 242 is formed in a flat plate shape protruding downward from the right end portion of the upper surface portion 241. The abutting portion 242 connects the upper surface portion 241 and the lower surface portion 243. The lower surface portion 243 is located below the upper surface portion 241. The lower surface portion 243 is formed in a flat plate shape protruding leftward from the lower end of the abutting portion 242. Further, the upper surface portion 241, the abutting portion 242, and the lower surface portion 243 form a recess 27 that opens toward the left side.

[0037] As shown in FIG. 7, the second fixing portion 21 further has a clamp portion 28. The clamp portion 28 has a support shaft 281, a contact surface portion 282, and a knob 283. The axial direction of the support shaft 281 is along the vertical direction. The contact surface portion 282 is connected to the upper end of the support shaft 281. The contact surface portion 282 rotates about the support shaft 281. The support shaft 281 is provided with, for example, a screw groove, and the support shaft 281 is screwed into a screw hole formed in the lower surface portion 243 of the base portion 24. The contact surface portion 282 is located within the recess 27 of the base portion 24. The knob 283 is fixed to the lower end of the support shaft 281. By rotating the knob 283, the contact surface portion 282 moves in the vertical direction between the upper surface portion 241 and the lower surface portion 243.

[0038] The top plate 31 is inserted between the upper surface portion 241 and the contact surface portion 282. More specifically, the top plate 31 is inserted until it abuts against the abutting portion 242. By rotating the knob 283 so as to move the contact surface portion 282 upward in this state, the upper surface portion 241 and the contact surface portion 282 sandwich the top plate 31, and the second fixing portion 21 is fixed to the top plate 31. Note that the second fixing portion 22 is fixed to the top plate 31 by the same method as the second fixing portion 21. Thereby, the second fixing portions 21 and 22 are fixed to the top plate 31. That is, the first fixing portion 1 is fixed to the top plate 31 via the second fixing portions 21 and 22. At this time, as shown in FIG. 2, the first fixing portion 1 is fixed with a predetermined interval G1 from the top plate 31. That is, the first wiring duct 41 and the second wiring duct 42 accommodated in the first fixing portion 1 are fixed at an interval from the top plate 31. Thereby, for example, when a user working on the top plate 31 spills moisture such as a beverage on the top plate 31, there is an advantage that moisture hardly adheres to the first wiring duct 41 and the second wiring duct 42.

[0039] As shown in FIG. 7, the wiring duct fixture F1 further includes a connector holding portion 7. In the present embodiment, since the feed-ins 61 and 62 are respectively accommodated in the right end portions of the groove portion 11 and the groove portion 12, the connector holding portion 7 is configured to be provided in the second fixing portion 21. When the feed-ins 61 and 62 are respectively accommodated in the left end portions of the groove portion 11 and the groove portion 12, the connector holding portion 7 is provided in the second fixing portion 22.

[0040] The connector holding portion 7 holds the connector portion 8. The connector portion 8 electrically connects the first connection wire W1 connected to the wiring duct 4 and the second connection wire W2 connected to the power supply 30 (see FIG. 10). In the present embodiment, since the connector holding portion 7 is provided in the second fixing portion 21, the connector portion 8 is disposed in the second fixing portion 21. When the connector holding portion 7 is provided in the second fixing portion 22, the connector portion 8 is disposed in the second fixing portion 22.

[0041] Note that the connector holding portion 7 may be provided in both of the second fixing portions 21 and 22. Further, the duct system 100 may include a connector portion 8 held by the second fixing portion 21 and a connector portion 8 held by the second fixing portion 22.

[0042] The connector holding portion 7 is attached to, for example, the stay portion 23 of the second fixing portion 21. The connector holding portion 7 holds the connector portion 8. The connector holding portion 7 has an attachment portion 71 and a protruding portion 72. The attachment portion 71 is formed in a flat plate shape along the vertical direction. The protruding portion 72 is provided continuously with the lower end of the attachment portion 71. The protruding portion 72 is formed in a flat plate shape protruding from the lower end of the attachment portion 71 in the direction (right side) in which the right end portion of the top plate 31 is inserted into the base portion 24.

[0043] The connector holding portion 7 is fixed to the second fixing portion 21 by fixing the attachment portion 71 to the support portion 25 with, for example, a screw or the like. That is, the connector holding portion 7 is provided above the base portion 24 provided below the support portion 25. Further, the protruding portion 72 of the connector holding portion 7 protrudes from the support portion 25 in the direction (right side) in which the right end portion of the top plate 31 is inserted into the base portion 24.

[0044] The connector portion 8 includes a first connector portion 81 and a second connector portion 82.

[0045] As shown in FIGS. 7 and 10, the first connector portion 81 electrically connects a first connection line W1 (first connection line W11) connected to the first wiring duct 41 via a feed-in 61 and a second connection line W2 (second connection line W21) connected to the power supply 30. More specifically, the second connection line W21 is electrically connected to the AC adapter 301 and is electrically connected to the power supply 30 via the AC adapter 301. The AC adapter 301 converts the AC power supplied from the power supply 30 into DC power and outputs it to the feed-in 61.

[0046] The first connector part 81 has a first connector 811 and a second connector 812. The first connector 811 is connected to the first connection line W11, and the second connector 812 is connected to the second connection line W21.

[0047] The second connector part 82 electrically connects a first connection line W1 (first connection line W12) connected to the second wiring duct 42 via a feed-in 62 and a second connection line W2 (second connection line W22) connected to the power supply 30. More specifically, the second connection line W22 is electrically connected to the AC adapter 302 and is electrically connected to the power supply 30 via the AC adapter 302. The AC adapter 302 converts the AC power supplied from the power supply 30 into DC power and outputs it to the feed-in 62.

[0048] The second connector part 82 has a first connector 821 and a second connector 822. The first connector 821 is connected to the first connection line W12, and the second connector 822 is connected to the second connection line W22.

[0049] Note that the second connection line W21 and the second connection line W22 may be electrically connected to the same AC adapter. In this case, the AC adapter converts the AC power supplied from the power supply 30 into DC power and outputs the DC power to each of the feed-ins 61 and 62.

[0050] The first connectors 811 and 821 are attached to the protruding part 72 of the connector holding part 7. The second connectors 812 and 822 are detachably connected to the first connectors 811 and 821.

[0051] As shown in FIG. 7, the second fixing part 21 further has an exterior part 29. The exterior part 29 has an upper body part 291 and a hanging part 292. The upper body part 291 is disposed above the top plate 31. The hanging part 292 protrudes downward from the upper body part 291. The hanging part 292 faces the side surface of the top plate 31.

[0052] The exterior part 29 houses the upper surface part 241 of the base part 24. The hanging part 292 houses the abutting part 242. The lower surface part 243 is disposed below the top plate 31 and protrudes from the hanging part 292.

[0053] The exterior part 29 has a fitting part on its inner surface, and the fitting part on the inner surface of the exterior part 29 and at least a part other than the exterior part 29 of the second fixing part 2 (for example, the stay part 23) are fitted together, so that the exterior part 29 is detachably fixed to the at least a part. Note that the exterior part 29 may be attached by fitting with the left and right direction ends of the first fixing part 1.

[0054] Also, the exterior part 29 houses the connector holding part 7 and the connector part 8. The second connection lines W21 and W22 are drawn out downward from the hanging part 292.

[0055] (2.2) Wiring duct As shown in FIG. 3, each of the first wiring duct 41 and the second wiring duct 42 has a duct rail 43 and two conductive bars 44. The duct rail 43 includes a first rail 431 and two second rails 432. Here, since the first wiring duct 41 and the second wiring duct 42 have a symmetrical structure in the front-rear direction, the first wiring duct 41 will be described below, and the detailed description of the second wiring duct 42 will be omitted.

[0056] The shape of the first rail 431 is a square tube shape. The first rail 431 is made of, for example, metal. The axial direction (length direction) of the first rail 431 is along the left-right direction. The first rail 431 includes a groove part 4310. The groove part 4310 extends in the length direction (left-right direction) of the duct rail 43. More specifically, the groove part 4310 is formed across both ends in the length direction of the duct rail 43. Two conductive bars 44 are housed in the groove part 4310.

[0057] The first rail 431 further includes two fitting parts 4311 and two mounting grooves 4312.

[0058] The two fitting portions 4311 are each a groove. The two fitting portions 4311 are provided on the inner surface of the groove portion 4310. The two fitting portions 4311 extend in the longitudinal direction (left - right direction) of the duct rail 43. More specifically, the two fitting portions 4311 are formed across both ends in the longitudinal direction of the duct rail 43. The two fitting portions 4311 fit into the adapter 9A (see FIG. 8). Thereby, the adapter 9A is attached to the first wiring duct 41.

[0059] The two mounting grooves 4312 are provided on the inner surface of the groove portion 4310. Among the two fitting portions 4311 and the two mounting grooves 4312, the two fitting portions 4311 are provided closer to the opening of the groove portion 4310. The two mounting grooves 4312 extend in the longitudinal direction (left - right direction) of the duct rail 43. More specifically, the two mounting grooves 4312 are formed across both ends in the longitudinal direction of the duct rail 43.

[0060] The two mounting grooves 4312 correspond one - to - one with the two second rails 432. The corresponding second rail 432 is fitted into each mounting groove 4312. The two second rails 432 are attached to the first rail 431 facing each other in the vertical direction.

[0061] Each of the two second rails 432 extends in the left - right direction. The shape of the second rail 432 in a cross - section orthogonal to the left - right direction is U - shaped. The second rail 432 has electrical insulation. The second rail 432 is formed of a synthetic resin material such as PVC (polyvinyl chloride), for example. The second rail 432 holds the conductive bar 44 inside it.

[0062] Each of the two conductive bars 44 (the first conductive bar 44A and the second conductive bar 44B) of the first wiring duct 41 extends in the left - right direction. Each of the first conductive bar 44A and the second conductive bar 44B is provided from the right end portion to the left end portion of the duct rail 43. Each of the first conductive bar 44A and the second conductive bar 44B is electrically connected to the electric wires W31, W32 (see FIG. 7) via the feed - in 61. Here, the electric wires W31, W32 are the electric wires included in the first connection wire W11. In the present embodiment, the first conductive bar 44A is electrically connected to the electric wire W31 on the positive - electrode side, the second conductive bar 44B is electrically connected to the electric wire W32 on the negative - electrode side, and a DC voltage is supplied to the first conductive bar 44A and the second conductive bar 44B.

[0063] (2.3) Feed - in Since the feed - ins 61, 62 shown in FIG. 7 have a structure symmetric to each other in the front - rear direction, the feed - in 61 will be described below, and the detailed description of the feed - in 62 will be omitted.

[0064] The feed - in 61 is a configuration for electrically connecting the first conductive bar 44A and the second conductive bar 44B of the first wiring duct 41 to the corresponding electric wires W31, W32 respectively. That is, the first conductive bar 44A and the second conductive bar 44B are electrically connected to the corresponding electric wires W31, W32 via the feed - in 61.

[0065] The electric wire W31 of the first connection wire W11 has a first terminal, and the feed - in 61 has a first contact electrically connected to the first terminal. The first contact is in contact with the first conductive bar 44A. The electric wire W32 of the first connection wire W11 has a second terminal, and the feed - in 61 has a second contact electrically connected to the second terminal. The second contact is in contact with the second conductive bar 44B. Thereby, the first conductive bar 44A is electrically connected to the electric wire W31, and the second conductive bar 44B is electrically connected to the electric wire W32.

[0066] (2.4) Adapter As shown in FIG. 10, the duct system 100 supplies power to the electrical equipment 20 via the power receiving device 9 connected to the first wiring duct 41 or the second wiring duct 42.

[0067] The power receiving device 9 includes an adapter 9A. A connector 201 is provided on the electric wire of the electrical equipment 20. The adapter 9A has a connector (insertion port) to which the connector 201 can be connected. For example, when the adapter 9A is connected to the first wiring duct 41, the adapter 9A receives DC power supply via the first conductive bar 44A and the second conductive bar 44B of the first wiring duct 41. Then, when the connector 201 provided on the electric wire of the electrical equipment 20 is connected to the connector of the adapter 9A, DC power is supplied from the first wiring duct 41 to the electrical equipment 20 via the adapter 9A. The adapter 9A can be attached to the first wiring duct 41 at an arbitrary position in the region provided with the groove portion 4310 (see FIG. 3) and can be electrically connected to the first conductive bar 44A and the second conductive bar 44B.

[0068] The adapter 9A has a housing 91 and two power receiving terminals.

[0069] As shown in FIG. 8, the shape of the housing 91 is a rectangular parallelepiped. The housing 91 has a first insertion port 911 and a second insertion port 912. The first insertion port 911 is an insertion port for a USB Type-A plug as the connector 201 (see FIG. 10). The second insertion port 912 is an insertion port for a USB Type-C plug as the connector 201. That is, the first insertion port 911 has a different standard from the second insertion port 912. The first insertion port 911 has a different size from the second insertion port 912.

[0070] The first insertion port 911 and the second insertion port 912 are provided on the surface (connector mounting surface 901) facing the side opposite to the first wiring duct 41 when the adapter 9A is attached to the first wiring duct 41. The first insertion port 911 and the second insertion port 912 are arranged vertically when the adapter 9A is attached to the first wiring duct 41.

[0071] The two power receiving terminals protrude from the housing 91 to the side opposite to the connector mounting surface 901. The tip of each of the two power receiving terminals is bent in the opposite direction to each other. In a state where the adapter 9A is attached to the first wiring duct 41, one of the two power receiving terminals is electrically connected to the first conductive bar 44A (see FIG. 3) on the positive electrode side, and the other is electrically connected to the second conductive bar 44B (see FIG. 3) on the negative electrode side.

[0072] The adapter 9A further has a voltage converter. The voltage converter converts the DC voltage received by the two power receiving terminals into a DC voltage of a desired voltage value. A DC voltage whose voltage value is converted by the voltage converter is output from the first insertion port 911 and the second insertion port 912. A DC voltage is applied to the electric device 20 (see FIG. 10) via a wire including a connector 201 connected to the first insertion port 911 or the second insertion port 912.

[0073] (2.5) Partition unit As shown in FIG. 7, the partition unit 5 has a partition 50 and an attachment 51 for supporting and fixing the partition 50 to the first fixing portion 1.

[0074] The attachment 51 is formed of, for example, the same material as the first fixing portion 1. The attachment 51 is formed of, for example, a metal such as aluminum as the material.

[0075] As shown in FIGS. 3, 7, and 9, the attachment 51 includes two combined members 511. Each combined member 511 is in a plate shape extending in the left - right direction. The combined member 511 is, for example, a metal plate. The combined member 511 is fixed to the first fixing portion 1. More specifically, the combined member 511 is fixed to the first fixing portion 1 with screws or the like from above. The combined member 511 is provided so as to cover from the left end to the right end of the first fixing portion 1.

[0076] The two combined members 511 are point-symmetrical to each other. That is, when one of the combined members 511 is rotated 180 degrees about an axis along the vertical direction, it coincides with the other combined member 511. In short, one of the two combined members 511 can be made into a member with the same shape as the other. This can reduce the manufacturing cost of the two combined members 511.

[0077] The combined member 511 has a base plate 512, a side plate 513, a support plate 514, and a butting portion 515. The base plate 512, the side plate 513, the support plate 514, and the butting portion 515 are provided from the left end to the right end of the first fixing portion 1.

[0078] The thickness direction of the base plate 512 is along the vertical direction. The base plate 512 is placed on the upper surface 10U of the first fixing portion 1.

[0079] The side plate 513 protrudes downward from the long side of the base plate 512. The thickness direction of the side plate 513 is along the front-rear direction. The side plate 513 covers a part of the side surface (front surface 10F or rear surface 10B) of the first fixing portion 1. Thereby, the strength of the attachment 51 is improved.

[0080] The support plate 514 protrudes upward from the long side of the base plate 512 on the side opposite to the side where the side plate 513 is provided. A partition 50 is inserted between the support plates 514 of the two combined members 511 (see FIG. 3).

[0081] The butting portion 515 is a protrusion provided so as to extend the base plate 512 further outward from the portion where the support plate 514 is provided. The butting portion 515 of one combined member 511 faces the butting portion 515 of the other combined member 511 (see FIG. 3). More specifically, these two butting portions 515 face each other in the front-rear direction. A partition 50 is placed on the two butting portions 515. The two support plates 514 and the two butting portions 515 of the two combined members 511 constitute a recess into which the lower part of the partition 50 is inserted.

[0082] Thus, each of the two combination members 511 has a butting portion 515, and the butting portions 515 face each other. This facilitates the alignment of the two combination members 511. Further, a partition 50 is placed on the butting portion 515.

[0083] The partition 50 has translucency. The material of the partition 50 is, for example, an acrylic resin. The shape of the partition 50 is a rectangular plate shape. The thickness direction of the partition 50 is along the front-rear direction. The partition 50 is attached so as to protrude upward with respect to the first fixing portion 1.

[0084] For example, the support plate 514 of each combination member 511 has one or more (four in FIG. 9) through holes 5140, and the partition 50 has one or more through holes. By passing a screw SC1 (see FIG. 3) through the through hole 5140 of the support plate 514 and the through hole of the partition 50, the partition 50 is attached to the attachment 51. The screw SC1 is, for example, a double-threaded screw. Note that it is not essential to use the screw SC1 when attaching the partition 50 to the attachment 51, and the partition 50 may simply be inserted between the two support plates 514.

[0085] The base plate 512 of each combination member 511 has a plurality (three in FIG. 9) of through holes 5120. Further, the first fixing portion 1 has a plurality (six in FIG. 9) of partition attachment portions P1 on the upper surface 10U. The partition attachment portion P1 is, for example, a through hole or a recess. The partition attachment portion P1 of the present embodiment is a through hole (see FIG. 3). Half of the six partition attachment portions P1 are provided in the front portion of the first fixing portion 1, and the other half are provided in the rear portion of the first fixing portion 1. By passing a screw SC2 (see FIG. 3) through the through hole 5120 of the base plate 512 and the partition attachment portion P1, the attachment 51 is attached to the first fixing portion 1.

[0086] (2.6) Cover The cover C1 is formed of, for example, the same material as the first fixing portion 1. The cover C1 is formed of, for example, a metal such as aluminum as the material.

[0087] As shown in FIGS. 4 to 6 and FIG. 9, the cover C1 extends in the left - right direction. The cover C1 covers the first fixing portion 1 from the left end to the right end.

[0088] The cover C1 is formed in a U - shape convex upward when viewed from the left - right direction. That is, the cover C1 has a main portion C11, a first side portion C12, and a second side portion C13. The shape of the main portion C11 is a rectangular plate shape. The thickness direction of the main portion C11 is along the up - down direction. The main portion C11 covers the upper surface 10U of the first fixing portion 1. The lower surface of the main portion C11 corresponds to the back surface C112 of the cover C1, and the upper surface of the main portion C11 corresponds to the front surface C111 of the cover C1. That is, the cover C1 has a back surface C112 and a front surface C111. The back surface C112 is the surface facing the first fixing portion 1, and the front surface C111 is the surface on the opposite side of the back surface C112. Also, the front surface C111 is formed in a planar shape.

[0089] The first side portion C12 protrudes downward from the long side (front end) of the main portion C11. The first side portion C12 covers a part of the side surface (front surface 10F) of the first fixing portion 1. The second side portion C13 protrudes downward from the long side (rear end) of the main portion C11. The second side portion C13 covers a part of the side surface (rear surface 10B) of the first fixing portion 1.

[0090] Also, as shown in FIG. 6, the cover C1 has a first rib C14, a second rib C15, and a third rib C16. The first rib C14, the second rib C15, and the third rib C16 protrude from the lower surface (back surface C112) of the main portion C11. The first rib C14, the second rib C15, and the third rib C16 are provided from the left end to the right end of the main portion C11.

[0091] The first rib C14, the second rib C15, and the third rib C16 are arranged in the width direction (front-rear direction) of the cover C1 on the back surface C112 of the cover C1, and the first rib C14 is provided between the second rib C15 and the third rib C16. That is, the second rib C15 is provided in front of the first rib C14, and the third rib C16 is provided behind the first rib C14. The width of the first rib C14 is larger than either the width of the second rib C15 or the width of the third rib C16. The first rib C14 is provided at the central portion of the main part C11 in the front-rear direction.

[0092] The first rib C14 ensures a gap between the first fixing portion 1 and the main part C11 of the cover C1. Also, the second rib C15 and the third rib C16 can suppress the rattling of the cover C1 at the front end portion and the rear end portion of the main part C11.

[0093] The main part C11 has a plurality (two in FIG. 9) of through holes C110. Also, the first fixing portion 1 has a plurality (two in FIG. 9) of cover attachment portions Q1 on the upper surface 10U. The cover attachment portion Q1 is, for example, a through hole or a recess. The cover attachment portion Q1 of the present embodiment is a through hole. The two cover attachment portions Q1 are provided on a line segment that bisects the first fixing portion 1 in the front-rear direction. Also, the two cover attachment portions Q1 pass through the first rib C14 (see FIG. 6). The cover C1 is attached to the first fixing portion 1 by passing a screw SC3 (see FIG. 6) through the through hole C110 of the cover C1 and the cover attachment portion Q1.

[0094] Thus, the partition 50 is attached to the partition attachment portion P1 using a plurality of screws SC1 and SC2, and the cover C1 is attached to the cover attachment portion Q1 using at least one screw SC3. The cover C1 is attached to the cover attachment portion Q1 using a smaller number of screws SC3 than the number of screws SC2 that are passed through the partition attachment portion P1 when the partition 50 is attached to the partition attachment portion P1. In the present embodiment, the number of screws SC2 that are passed through the partition attachment portion P1 when the partition 50 is attached to the partition attachment portion P1 is six, and the number of screws SC3 used when the cover C1 is attached to the cover attachment portion Q1 is two.

[0095] As shown in FIGS. 3 and 6, the height H2 from the upper surface 10U of the first fixing portion 1 to the upper end of the cover C1 (the surface C111 of the main portion C11) is lower than the height H1 from the upper surface 10U of the first fixing portion 1 to the upper end of the attachment 51 (the upper end of the support plate 514). Thereby, when comparing the case where the attachment 51 is attached to the first fixing portion 1 and the case where the cover C1 is attached, the cover C1 is less obstructive than the attachment 51.

[0096] (Modification of the embodiment) Hereinafter, modifications of the embodiment will be listed. The following modifications may be realized in appropriate combinations.

[0097] The partition attachment portion P1 is not limited to a through hole or a recess, etc. The partition attachment portion P1 may be, for example, a convex portion that fits into a recess provided in the partition 50.

[0098] The cover attachment portion Q1 is not limited to a through hole or a recess, etc. The cover attachment portion Q1 may be, for example, a convex portion that fits into a recess provided in the cover C1.

[0099] At least a part of the cover attachment portion Q1 may also serve as the partition attachment portion P1.

[0100] The partition attachment part P1 is not limited to a configuration in which the attachment 51 can be attached. The partition attachment part P1 may be configured to be able to attach the partition 50 without going through the attachment 51. In this case, the attachment 51 is unnecessary. For example, the partition attachment part P1 may be a recess into which the tip of the partition 50 is inserted. When the partition 50 is not used, by covering such a recess (partition attachment part P1) with the cover C1, it is possible to reduce the possibility that the recess will be clogged with objects and interfere with the attachment of the partition 50.

[0101] The attachment 51 may be composed of a single member. For example, the two combined members 511 of the embodiment may be integrally connected at the butting part 515 to form the attachment 51.

[0102] The attachment 51 is not limited to a configuration that holds the lower end of the partition 50, and may be a configuration that holds the side of the partition 50.

[0103] The first fixing part 1 of the embodiment is arranged such that the longitudinal direction of the first fixing part 1 is along the horizontal plane. In contrast, the first fixing part 1 may be arranged such that the longitudinal direction of the first fixing part 1 intersects (for example, is orthogonal to) the horizontal plane.

[0104] The power supplied from the wiring duct 4 to the adapter 9A is not limited to DC power and may be AC power.

[0105] The adapter 9A may be incorporated into the electric device 20. In other words, the adapter 9A may be integrated with the electric device 20. In this case, the power supply from the adapter 9A to the electric device 20 does not have to go through the connector 201.

[0106] The adapter 9A may be fixed to the first fixing part 1 instead of the wiring duct 4.

[0107] The duct system 100 does not have to include the cover C1.

[0108] The duct system 100 may not include the partition 50.

[0109] The duct system 100 may not include the attachment 51.

[0110] The number of each individual component shown in the above embodiment is an example and is not limited to the number shown in the embodiment. For example, the duct system 100 is not limited to including two wiring ducts 4, and may include one or three or more wiring ducts 4. Also, the duct system 100 is not limited to including one first fixing part 1, and may include two or more first fixing parts 1. Also, the duct system 100 is not limited to including two second fixing parts 2, and may include one or three or more second fixing parts 2. Also, the duct system 100 is not limited to including one partition 50, and may include two or more partitions 50.

[0111] The voltage of the conductive bar 44 may be different for each wiring duct 4. Also, the standard of the attachable adapter 9A may be different for each wiring duct 4.

[0112] One wiring duct 4 may be fixed to two or more first fixing parts 1.

[0113] The configuration of the second fixing part 2 is not limited to the configuration of being fixed to the top plate 31 by the clamp part 28. The second fixing part 2 may be, for example, a configuration of being fixed to the top plate 31 by screwing.

[0114] The configuration of the first fixing part 1 is not limited to the configuration of accommodating the wiring duct 4. The first fixing part 1 may be, for example, a configuration of supporting the wiring duct 4 at one or a plurality of locations. The first fixing part 1 may be a configuration of supporting the wiring duct 4 in a cantilever structure or a double-cantilever structure.

[0115] (Summary) From the embodiments described above and the like, the following aspects are disclosed.

[0116] The duct system (100) according to the first aspect includes a first fixing portion (1) and at least one second fixing portion (2). At least one wiring duct (4) is attached to the first fixing portion (1). At least one second fixing portion (2) is provided at at least one end of the first fixing portion (1). At least one second fixing portion (2) fixes the first fixing portion (1) to the top plate (31). The first fixing portion (1) has a partition mounting portion (P1) and a cover mounting portion (Q1). The partition mounting portion (P1) enables the attachment and detachment of the partition (50). The cover mounting portion (Q1) enables the attachment and detachment of a cover (C1) that covers the partition mounting portion (P1).

[0117] According to the above configuration, when the partition (50) is not used, the partition mounting portion (P1) can be covered with the cover (C1), so that it is possible to prevent the partition mounting portion (P1) from interfering with the user's work or the like. Therefore, the convenience can be improved by the above duct system (100).

[0118] Further, in the duct system (100) according to the second aspect, in the first aspect, the partition mounting portion (P1) enables the attachment and detachment of an attachment (51) that supports the partition (50). The partition (50) can be attached to the partition mounting portion (P1) via the attachment (51).

[0119] According to the above configuration, when the partition (50) is not used, the attachment (51) can be removed, so that it is possible to prevent the attachment (51) from getting in the way.

[0120] Further, the duct system (100) according to the third aspect, in the second aspect, further includes an attachment (51). The attachment (51) includes two combined members (511) that are point-symmetric to each other.

[0121] According to the above configuration, one of the two combination members (511) can be a member having the same shape as the other. Thereby, the manufacturing cost of the two combination members (511) can be reduced.

[0122] Further, the duct system (100) according to the fourth aspect further includes an attachment (51) in the second or third aspect. The attachment (51) includes two combination members (511). Each of the two combination members (511) has a butting portion (515), and they face each other at the butting portion (515). A partition (50) is placed at the butting portion (515).

[0123] According to the above configuration, it becomes easy to align the two combination members (511).

[0124] Further, in the duct system (100) according to the fifth aspect, in any one of the second to fourth aspects, the height (H2) from the upper surface (10U) of the first fixing portion (1) to the upper end of the cover (C1) is lower than the height (H1) from the upper surface (10U) of the first fixing portion (1) to the upper end of the attachment (51).

[0125] According to the above configuration, the cover (C1) is less likely to be obstructive than the attachment (51).

[0126] Further, the duct system (100) according to the sixth aspect includes, in any one of the first to fifth aspects, at least one wiring duct (4) including a first wiring duct (41) and a second wiring duct (42). The first wiring duct (41) is attached to the front surface (10F) of the first fixing portion (1). The second wiring duct (42) is attached to the rear surface (10B) of the first fixing portion (1). A partition mounting portion (P1) is provided on the upper surface (10U) of the first fixing portion (1).

[0127] According to the above configuration, power can be supplied from the wiring duct (4) respectively at positions before and after the partition (50).

[0128] Also, in the duct system (100) according to the seventh aspect, in any one of the first to sixth aspects, the partition (50) is attached to the partition attachment portion (P1) using a plurality of screws (SC1, SC2). The cover (C1) is attached to the cover attachment portion (Q1) using a smaller number of screws (SC3) than the screws (SC2) passed through the partition attachment portion (P1) when the partition (50) is attached to the partition attachment portion (P1).

[0129] According to the above configuration, by using a relatively large number of screws (SC2), the installation strength of the partition (50) can be ensured. Also, by using a relatively small number of screws (SC3), the labor for installing the cover (C1) can be reduced, and furthermore, the aesthetic appearance of the cover (C1) can be improved.

[0130] Also, the duct system (100) according to the eighth aspect further includes a cover (C1) in any one of the first to seventh aspects. The cover (C1) has a back surface (C112) facing the first fixing portion (1) and a front surface (C111) on the side opposite to the back surface (C112). The front surface (C111) is planar.

[0131] According to the above configuration, the aesthetic appearance of the cover (C1) can be improved.

[0132] Further, the duct system (100) according to the ninth aspect further includes a cover (C1) in any one of the first to eighth aspects. The cover (C1) has a back surface (C112) facing the first fixing portion (1) and a front surface (C111) opposite to the back surface (C112). The cover (C1) has a first rib (C14), a second rib (C15), and a third rib (C16). The first rib (C14), the second rib (C15), and the third rib (C16) are arranged side by side in the width direction of the cover (C1) on the back surface (C112) of the cover (C1). The first rib (C14) is provided between the second rib (C15) and the third rib (C16).

[0133] According to the above configuration, the first rib (C14) secures the interval between the first fixing portion (1) and the cover (C1). Further, the second rib (C15) and the third rib (C16) can suppress the rattling of the cover (C1).

[0134] Further, in the duct system (100) according to the tenth aspect, in any one of the first to ninth aspects, the first fixing portion (1) has a partition mounting portion (P1) and a cover mounting portion (Q1) on the same surface.

[0135] According to the above configuration, it is easy to replace the partition (50) and the cover (C1).

[0136] Regarding the configurations other than the first aspect, they are not essential configurations of the duct system (100) and can be omitted as appropriate.

Explanation of Reference Numerals

[0137] 1 First fixing portion 2 Second fixing portion 4 Wiring duct 10B Rear surface 10F Front surface 10U Upper surface 31 Top plate 41 First wiring duct 42 Second wiring duct 50 Partition 51 Attachment 100 Duct System 511 Combination Member 515 Butt Joint C1 Cover C14 First Rib C15 Second Rib C16 Third Rib C111 Surface C112 Back Surface H1, H2 Height P1 Partition Mounting Portion Q1 Cover Mounting Portion SC1, SC2, SC3 Screw

Claims

1. a first fixing part to which at least one wiring duct is attached; at least one second fixing part provided at at least one end of the first fixing part for fixing the first fixing part to a top plate; a cover, and comprising: the first fixing part is a partition mounting part capable of mounting and removing a partition; a cover mounting part capable of mounting and removing the cover that covers the partition mounting part; and has the partition mounting part has a plurality of holes for mounting the partition; the cover covers the plurality of holes; a duct system.

2. A first fixing part to which at least one wiring duct is attached; at least one second fixing part provided at at least one end of the first fixing part for fixing the first fixing part to a top plate, and comprising: the first fixing part is a partition mounting part capable of mounting and removing a partition; a cover mounting part capable of mounting and removing a cover that covers the partition mounting part; and has the partition mounting part is capable of mounting and removing an attachment for supporting the partition; the partition is attachable to the partition mounting part via the attachment; a duct system.

3. further comprising the attachment; the attachment includes two combined members that are point-symmetric to each other; the duct system according to Claim 2.

4. further comprising the attachment; the attachment includes two combined members; each of the two combined members has a butting part, and the butting parts face each other; the partition is placed at the butting part; the duct system according to Claim 2.

5. The height from the upper surface of the first fixing part to the upper end of the cover is lower than the height from the upper surface of the first fixing part to the upper end of the attachment; the duct system according to any one of Claims 2 to 4.

6. A first fixing part to which at least one wiring duct is attached; at least one second fixing part provided at at least one end of the first fixing part for fixing the first fixing part to a top plate; as the at least one wiring duct, a first wiring duct and a second wiring duct are provided; the first fixing part is a partition mounting part capable of mounting and removing a partition; A cover mounting portion capable of mounting and removing a cover that covers the partition mounting portion. On the front surface of the first fixing portion, the first wiring duct is attached, and on the rear surface of the first fixing portion, the second wiring duct is attached. On the upper surface of the first fixing portion, the partition mounting portion is provided. Duct system.

7. The partition is attached to the partition mounting portion using a plurality of screws. The cover is attached to the cover mounting portion using a smaller number of screws than the screws passed through the partition mounting portion when the partition is attached to the partition mounting portion. The duct system according to any one of claims 1 to 4.

8. Further comprising the cover. The cover has a back surface facing the first fixing portion and a front surface opposite to the back surface. The front surface is flat. The duct system according to any one of claims 1 to 4.

9. A first fixing portion to which at least one wiring duct is attached, At least one second fixing portion provided at at least one end of the first fixing portion for fixing the first fixing portion to the top plate, A cover, The first fixing portion, A partition mounting portion capable of attaching and detaching a partition, A cover mounting portion capable of attaching and detaching the cover that covers the partition mounting portion, The cover has a back surface facing the first fixing portion and a front surface opposite to the back surface. The cover has a first rib, a second rib, and a third rib. The first rib, the second rib, and the third rib are arranged side by side in the width direction of the cover on the back surface of the cover. The first rib is provided between the second rib and the third rib. Duct system.

10. A first fixing portion to which at least one wiring duct is attached, At least one second fixing portion provided at at least one end of the first fixing portion for fixing the first fixing portion to the top plate, The first fixing portion, A partition mounting portion capable of attaching and detaching a partition, A cover mounting portion capable of attaching and detaching the cover that covers the partition mounting portion, The first fixing portion has the partition mounting portion and the cover mounting portion on the same surface. Duct system.

Images