JP2013215424A - Cords drawing device of wiring duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cords drawing device of a wiring duct that has simple structure for attaching a duct cover to a duct opening provided on a top board, is easily attached to and detached from the duct opening, can draw the cords onto the top board even if the duct cover has been attached to the duct opening, and can unify both of the top board and the duct cover into a wood base.SOLUTION: In a cords drawing device of wiring ducts, a wiring duct 6 is provided on a lower portion of a top board 2 of a utensil, the top board includes a duct opening 10 communicating with the wiring duct, a duct cover 12 is attached to the duct opening, the duct cover is placed in a stepped part 26 formed in front and rear parts inside the duct opening, an engagement means provided in the duct cover and the stepped part attachably/detachably fixes a position, and an insertion hole for drawing cords is provided between right and left side edges of the duct cover and right and left opening edges of the duct opening.

Description

  The present invention relates to a cord drawing device for a wiring duct, and more particularly to a cord drawing device for wiring cords on a top plate from a wiring duct below the top plate.

  A duct opening is formed in the horizontal direction of the top plate of the table or desk, that is, the longitudinal direction of the top plate, a duct cover is attached to the duct opening, and cords are placed on the top plate from a horizontal wiring duct provided below the top plate. Various structures that can be pulled out are provided. In this case, the duct cover is removed or rotated to open, and the duct opening is opened to perform the wiring work of the cords, but the cords can be pulled out from the gap even when the duct opening is closed by the duct cover. What can be done is also known.

  For example, in Patent Document 1, the left and right legs are connected by a module between legs, and a top plate is mounted on the upper surface of both legs with a space in the front and rear, and the lower part between the front and rear top plates is attached. The duct opening of the inter-leg module is positioned in the duct opening of the inter-leg module, and a duct cover is detachably mounted, and a gap is provided between the rear end of the top plate and the duct cover. A cord drawing device for a wiring duct having a structure is disclosed. That is, the cords can be pulled out on the top plate through the gap between the front and rear edges of the duct cover and the rear end of the top plate while the duct cover is attached to the duct opening.

  Further, in Patent Document 2, for a wiring duct opened along the length direction of the top plate, a cover bracket is provided in a direction crossing the duct, and the wiring cover is opened / closed and rotated. Attach a block mounting member formed so that it can be mounted by changing the position and orientation of the support shaft block having a shaft that supports the shaft, while wiring to the shaft of the support shaft block mounted in a symmetric orientation to the block mounting member There is disclosed a duct cover mounting structure in which a cover is detachably mounted on a bearing portion formed on the back surface of the cover so as to be undulated. Here, since a flexible free cover is provided at the leading edge of the wiring cover, the free cover is deformed even when the wiring cover is closed, while the wiring cover and the rear end of the top plate are interposed. It is possible to pull out the cords on the top board.

JP 2007-151824 A JP 2010-233595 A

  However, the conventional structure in which the duct cover is attached to the duct opening has a complicated structure such as separately providing a member for supporting the duct cover inside the duct opening. In addition, many duct covers are made by cutting an extruded mold material of synthetic resin or aluminum to an appropriate length, and since the materials are different in the case of a wooden top plate, a mismatch in appearance cannot be denied.

  Therefore, in view of the above-mentioned situation, the present invention intends to solve the problem that the structure in which the duct cover is attached to the duct opening provided on the top plate is simple, and the attachment to the duct opening is easy. It is possible to draw out the cords on the top plate even when attached to the opening, and to provide a cord duct cord drawing device that can unify both the top plate and the duct cover into a wooden system It is in.

  In order to solve the above-mentioned problems, the present invention provides a wiring duct provided with a wiring duct below the top plate of the fixture, a duct opening communicating with the wiring duct in the top plate, and a duct cover attached to the duct opening. A duct cord drawing device, wherein the duct cover is placed on a stepped portion formed at the front and rear portions inside the duct opening, and engaging means provided on the duct cover and the stepped portion A wiring duct cord pulling device, characterized in that an insertion hole is provided between the left and right ends of the duct cover and the left and right opening edges of the duct opening. (Claim 1).

  Here, the wiring duct is formed by providing a steel duct main body に on the lower surface of the top plate. The duct main body 杆 has a concave groove portion opened upward, and a reinforcing hook portion is bent at the front and rear upper edges. A long member formed, wherein the front and rear width of the duct opening is set wider than the lateral width of the concave groove portion, and the reinforcing flange portion is stepped on the front and rear portions inside the duct opening. It is preferable to form (Claim 2).

  Further, it is preferable that the engaging means is configured to engage a pin protruding from the back surface of the duct cover into an engagement hole formed in the stepped portion.

  Alternatively, as the engaging means, it is also preferable to use a structure in which a magnet provided on the back surface of the duct cover is attracted to the magnetic material of the stepped portion (Claim 4).

  Alternatively, as the engaging means, an engagement hole is formed in the left and right center of the stepped portion, and a pin engaging with the engagement hole is provided at the front and rear edge portions of the left and right center of the duct cover. In addition, it is more preferable to use a structure in which magnets that are attracted to the magnetic material of the stepped portion are embedded in the four corners of the back surface.

  In the wiring duct cord drawing device according to the first aspect of the present invention, the wiring duct is provided below the top plate of the fixture, and the top plate is provided with a duct opening communicating with the wiring duct. A wiring duct cord drawing device having a duct cover mounted thereon, wherein the duct cover is placed on a stepped portion formed at the front and rear portions inside the duct opening, and the duct cover and stepped Since the position is detachably fixed by the engaging means provided in the section, and the insertion holes for drawing out the cords are provided between the left and right ends of the duct cover and the left and right opening edges of the duct opening, Just place the back and front of the back of the cover on the stepped part formed in the front and back part inside the duct opening, and at the same time, simply fix the position detachably with the engaging means provided on the duct cover and stepped part. In the right position It can be fitted with Kutokaba, also while wearing the duct cover to the duct opening can be drawn from the left and right sides of the insertion hole of the cords on the top plate. Moreover, both the top plate and the duct cover can be made of a wood-based material, and in that case, the appearance can be unified.

  According to a second aspect of the present invention, the wiring duct is formed by providing a steel duct main body rod on the lower surface of the top plate, and the duct main body rod has a concave groove portion opened upward, and reinforcing ribs on the front and rear upper edges. Is a long member formed by bending a portion, the front and rear width of the duct opening is set wider than the lateral width of the concave groove portion, and the reinforcing flange portion is positioned stepwise at the front and rear portions inside the duct opening. Since the stepped portion is formed, the top plate can be reinforced by connecting the reinforcing rib portion of the steel duct main body rod to the lower surface of the top plate with a fixing means such as a screw. Since the reinforcing flange portion is exposed at the front and rear portions of the duct opening, the exposed portion can be used as a stepped portion on which the duct cover is placed, and it is not necessary to apply special processing to the top plate.

  According to the third aspect of the present invention, since the engaging means uses a structure in which a pin protruding from the back surface of the duct cover is engaged with an engagement hole formed in the stepped portion, the duct cover is simply stepped. The duct cover can be mounted at the exact position of the duct opening simply by engaging the pin with the engaging hole, and it is extremely easy to attach and detach the duct cover when wiring cords. Easy. That is, when removing the duct cover, if the finger is inserted from the insertion hole and the left and right sides of the duct cover are lifted, the pin is also removed from the engagement hole, so that the operation is easy.

  According to claim 4, since the engaging means uses a structure that attracts the magnet provided on the back surface of the duct cover to the magnetic material of the stepped portion, the engagement between the pin and the engagement hole, By attracting the magnet to the steel step, the duct cover is simply placed on the step, and the magnet is attracted to the magnetic material of the step so that the duct cover is positioned accurately at the duct opening. It is very easy to attach and detach the duct cover when wiring cords. That is, when removing the duct cover, if the finger is inserted through the insertion hole and the left and right sides of the duct cover are lifted, the magnet is pulled away from the stepped portion, and thus the operation is easy.

  According to a fifth aspect of the present invention, as the engagement means, an engagement hole is formed in the left and right center of the stepped portion, and the engagement hole is engaged with the front and rear edge portions of the left and right center of the back surface of the duct cover. In addition to projecting pins to be projected, and using a structure in which magnets that are attracted to the magnetic material of the stepped portion are embedded in the four corners of the back surface, accurate positioning is achieved by engaging the pins with the engagement holes. It can be fixed by attracting the magnet and the magnetic material of the stepped part and can be separated by lifting the duct cover. Can be installed.

It is a whole perspective view of the table provided with the cord drawing device of the wiring duct concerning the present invention. It is also a front view. It is a side view similarly. It is an exploded perspective view of the principal part similarly. It is a partial expansion perspective view of the principal part similarly. It is a partial cross-sectional top view which shows the relationship between a columnar wiring duct and a horizontal wiring duct. It is a partially vertical side view of the same. It is the decomposition | disassembly longitudinal section front view which showed the state before attaching a columnar wiring duct in a horizontal wiring duct. It is the decomposition | disassembly vertical front view which showed the state after attaching a columnar wiring duct in a horizontal wiring duct similarly. It is a partial top view which shows the attachment or detachment structure of the duct cover of a horizontal wiring duct.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. 1 to 3 show a table provided with a cord drawing device for a wiring duct according to the present invention, FIG. 4 to FIG. 10 show the details, in which 1 is a leg, 2 is a top plate, 3 is The beam, 4 is a horizontal wiring duct, 5 is a columnar wiring duct, 10 is a duct opening, and 12 is a duct cover. Note that the present invention can be applied to a desk without any changes.

  The table of this embodiment connects the beam 3 between the lower portions of the legs 1 and 1 arranged on both sides, and connects the duct main body 6 constituting the horizontal wiring duct 4 between the upper ends of the table. , 1 and the duct main body 6 support the top plate 2. The leg 1 has a side-viewing H-shaped structure in which a ground rod 8 is fixed to the lower end of a vertical pedestal 7 in the front-rear direction and a horizontal rod 9 is fixed to the upper end of the pedestal 7. The beam 3 and the duct main body 6 are connected to the lower part of the column 7 and the inner surface side of the upper end part, respectively.

  The present invention is a wiring device in a table or desk provided with columnar wiring ducts 5 and horizontal wiring ducts 4 for wiring cords from the ceiling onto the top plate, and the top plate 2 supported by the legs 1. A duct main body 6 of the horizontal wiring duct 4 is provided below, and a duct opening 10 of the horizontal wiring duct 4 is formed closer to the center than the side end of the top plate 2, and a lower portion of the columnar wiring duct 5 is formed. The horizontal wiring duct 4 and the columnar wiring duct 5 are linked to each other by being fixedly erected through the duct opening 10 and fixed to the terminal end of the duct main body 6.

  More specifically, the duct main body 杆 6 of the horizontal wiring duct 4 is a cocoon-like long member whose upper part is opened, and a terminal portion is connected between the both legs 1, 1 together with the legs 1 and the ceiling. The lower surface of the plate 2 is supported, and one or a plurality of the duct openings 10 formed in the top plate 2 are positioned above the concave groove portion 11 of the duct main body 6.

  A duct cover 12 is detachably provided in each duct opening 10. In this embodiment, the top plate 2 uses a wood-based material, and the duct cover 12 also uses a wood-based material to unify the overall appearance. It is possible to draw cords between the left and right opening edges of the duct opening 10, that is, between both opening edges that intersect the direction along the concave groove portion 11 of the duct main body 6 and both side edges of the duct cover 12. Insertion holes 13 are formed. In addition, only a slight clearance is provided between the front and rear edges of the duct opening 10 and the front and rear edges of the duct cover 12, and the top surface of the top plate 2 and the duct cover 12 are substantially flush. It is substantially continuous.

  As shown in FIGS. 1 and 4 to 9, the end of the duct main body 6 has a mounting plate 14 connected to the inner surface of the leg 7 of the leg 1, and the columnar wiring duct 5 The lower portion is fastened together with the mounting plate 14 and the inner surface of the pedestal 7 of the leg 1. Here, the columnar wiring duct 5 is formed of a column member 15 having a concave groove 16 that accommodates cords on the inner surface side, and a cover member 17 that closes the concave groove 16, and a lower end portion of the column member 15. Is not provided with a cover member 17. The column member 15 is made of an aluminum extrusion mold, and the cover member 17 is made of a synthetic resin extrusion mold. When the strength of the column member 15 is insufficient, a steel reinforcing member having a substantially U-shaped cross section is fitted into the recessed groove 16 and integrated.

  A specific structure for fastening the lower part of the columnar wiring duct 5 to the inner surface of the mounting plate 14 and the leg column 7 of the leg 1 is shown in FIGS. 4, 5, 8 and 9. A plurality of screw holes 18 and 18 are formed vertically on the inner surface of the upper end of the pedestal 7 of the leg 1, and a fastening screw 19 is screwed into each screw hole 18. On the other hand, Dalma holes 20 and 20 and Dalma holes 21 and 21 are formed in the attachment plate 14 of the duct main body 6 and the lower part of the column member 15 of the columnar wiring duct 5 so as to correspond to the fastening screw 19, respectively. doing. Here, the Dharma holes 20 and 21 receive large-diameter holes 20A and 21A into which the head portion 19A of the fastening screw 19 is inserted, and a shaft portion 19B of the fastening screw 19 thereabove and are wider than the head portion 19A. Narrow small-diameter holes 20B and 21B are continuous shapes. Then, Dalma holes 20, 20 formed in the mounting plate 14 of the duct main body 6 are respectively engaged with the fastening screws 19, 19 loosely screwed into the inner surface of the pedestal 7 of the leg 1, and temporarily connected. Then, the Dalma holes 21 and 21 formed in the column member 15 of the columnar wiring duct 5 inserted through the duct opening 10 in a state where the top plate 2 is placed on the leg 1 and the duct main body 6. After engaging with the fastening screws 19, 19, the fastening screws 19, 19 are finally tightened.

  Then, the side edge of the duct opening 10 on the side end side of the top plate 2 is abutted against the outer side surface of the columnar wiring duct 5 fixed and erected on the terminal end of the duct main body 6, and the positioning state thereof Then, the top plate 2 is screwed from below to the horizontal rod 9 provided at the upper end of the leg 1 and the reinforcing rod portions 22, 22 formed at both upper ends of the duct body rod 6. On the lower surface of the top plate 2, a screw nut 23,... Is formed in advance at a predetermined position by embedding an onion nut or the like, and the horizontal rod 9 of the leg body 1 and the reinforcing rod portion 22 of the duct body rod 6. Screws 25,... Are inserted from below into mounting holes 24 formed in 22 and screwed into the screw holes 23,. Here, since the lower surface of the top plate 2 is flat, it is difficult to align the screw holes 23 and the mounting holes 24 only by placing them on the legs 1 and the duct main body 6. Thus, positioning can be easily performed by using the side edge of the duct opening 10 and the outer surface of the columnar wiring duct 5 as a reference for positioning.

  In the present embodiment, the duct openings 10 are formed at three positions in the left-right direction at the front-rear center portion of the top plate 2. And the said columnar wiring duct 5 is located in the outer side edge part of the duct opening 10 of the one side end side of the said top plate 2. FIG. The duct cover 12 can be mounted on the duct opening 10 even when the columnar wiring duct 5 is mounted in an upright state. Even in this case, the insertion hole 13 is formed on the other side near the center.

  The duct body rod 6 is made of steel, and the width of the duct opening 10 is set wider than the width of the concave groove portion 11, and the reinforcing flange portion 22 is formed at the front and rear portions inside the duct opening 10. 22 are positioned in a step shape, and the front and rear edges of the duct cover 12 can be placed on the step portions 26, 26. Engagement holes 27 and 27 are formed at the left and right centers of the stepped portions 26 and 26, respectively, and pins 28 and 28 projecting from the front and rear edge portions at the left and right center of the back surface of the duct cover 12 are formed. , 27 so that the duct cover 12 can be mounted at an accurate position inside the duct opening 10. Further, magnets 29,... Are embedded in the four corners on the back surface of the duct cover 12, and are attracted to the stepped portions 26, 26 to hold the duct cover 12. That is, the steel step portions 26 and 26 are magnetic materials. In order to remove the duct cover 12 from the duct opening 10, if a finger is inserted through the insertion hole 13 and one side portion of the duct cover 12 is lifted, the magnets 29,. Simultaneously with the separation, the pins 28 and 28 come out of the engagement holes 27 and 27 of the reinforcement flanges 22 and 22. If the duct main body 6 is not made of steel, a magnetic material such as an iron piece may be separately fixed to the stepped portions 26, 26.

  In the present invention, the engagement means means an engagement structure between the pin 28 and the engagement hole 27, an adsorption structure between the magnet 29 and the stepped portions 26, 26 with a magnetic material, or a structure using both of them. To do.

  Here, if the duct cover 12 is symmetric, there is no mistake in the orientation when the duct cover 12 is mounted on the duct opening 10, and the widths of the insertion holes 13, 13 formed on both the left and right sides are the same. It is also preferable in appearance. And if the said columnar wiring duct 5 is comprised so that it may fit in the said insertion hole 13, all the duct openings 10 and the duct covers 12 can be made into a common shape.

  As described above, the fastening screws 19 and 19 which are loosely screwed into the inner surface of the leg column 7 of the leg body 1 are connected to the Dalma holes 20 and 20 formed in the mounting plate 14 of the duct main body 6 and the columnar wiring duct 5. After the Dalma holes 21 and 21 formed in the column member 15 are locked and temporarily connected, the fastening screws 19 and 19 are finally tightened. At this time, the duct main body 6 can be used so that an electric screwdriver can be used. A sufficient margin is provided for the lateral width of the groove 11 and the length of the duct opening 10 in the left-right direction. In this embodiment, the lateral width of the concave groove portion 11 is about 70 mm, and the duct opening 10 is set to 100 mm × 400 mm. If it does in this way, an electric screwdriver can be inserted in the said recessed groove part 11 from the duct opening 10, and the said fastening screws 19 and 19 can be rotated from an axial direction.

  As shown in FIGS. 4 and 6, the columnar member 15 of the columnar wiring duct 5 is formed with locking strips 30, 30 on both sides in the concave groove 16, and the cover strips 30, 30 are covered with the cover. The leg pieces 31, 31 on both sides of the member 17 are detachably engaged. The recessed groove 16 and the cover member 17 form a vertically closed duct space. In the present embodiment, a groove portion that is not covered with the cover member 17 is formed outside the locking strip portion 30, and a high-power cord such as a power cord is wired in the duct space, and the outer groove portion is formed. It is also possible to separate and wire weak electric cords such as LAN cables and telephone lines. Of course, all cords can be wired in a duct space formed by the concave groove 16 and the cover member 17.

  In order to draw the cords from the ceiling to the columnar wiring duct 5, the cords may be directly drawn, but the cords from the ceiling and the cords wired to the columnar wiring duct 5 may be connected by a connector. A connection box 32 for receiving connectors such as taps and plugs is fixed to the upper end of the column member 15. As shown in FIGS. 1 to 3, the connection box 32 has a trapezoidal shape opened upward, and it is possible to accommodate surplus cords therein. Further, the cover member 17 is not provided at the lower end portion of the columnar wiring duct 5 and corresponding to the inside of the concave groove portion 11 of the duct main body 6, and the concave groove 16 of the column member 15 is exposed. ing. By doing so, the horizontal wiring duct 4 and the columnar wiring duct 5 communicate with each other, and the cords lowered from the ceiling are wired to the horizontal wiring duct 4 through the columnar wiring duct 5, and are placed on the top plate 2 from the duct opening 10. It can be pulled out. Even when the duct cover 12 is attached to the duct opening 10, the cords can be pulled out from one or both of the insertion holes 13, 13 on both the left and right sides. An opening 33 is provided on the bottom surface of the duct main body 6 corresponding to the duct opening 10 so that the cords can be drawn downward through the opening 33.

  As shown in FIGS. 1, 2, 5, 6 and 9, the table according to the present invention has the columnar wiring duct 5 erected at a position closer to the center than the side end surface of the top plate 2. . Therefore, even when the side edge of the top plate 2 is joined to the edge of the top plate of another table or joined to the wall surface, the columnar wiring duct 5 does not get in the way. Further, the length of the leg protruding from the leg 1 is increased so that the side part of the top plate 2 lateral to the columnar wiring duct 5 can be used positively. It is also preferable that the person can use the top board 2 with a margin. Furthermore, it is also preferable that the side portion of the top plate 2 is protruded laterally in a semicircular shape. Thus, since the shape of the top plate 2 can be freely set, the columnar wiring duct 5 is erected using the inside of the duct opening 10 provided at a position closer to the center than the side end of the top plate 2. Because.

1 leg, 2 top plate,
3 beam, 4 horizontal wiring duct,
5 Columnar wiring duct 6 Duct body 杆
7 pedestal, 8 grounding rod,
9 horizontal fence, 10 duct opening,
11 concave groove, 12 duct cover,
13 insertion hole, 14 mounting plate,
15 column member, 16 groove,
17 cover member, 18 screw hole,
19 fastening screws, 19A head,
19B Shaft, 20 Dharma hole,
21 Dharma hole, 20A, 21A large diameter hole,
20B, 21B small-diameter hole, 22 reinforcing collar,
23 screw holes, 24 mounting holes,
25 screws, 26 steps,
27 engagement holes, 28 pins,
29 magnets, 30 locking strips,
31 leg pieces, 32 connection boxes,
33 Opening.

Claims (5)

  A wiring duct cord drawing device comprising a wiring duct provided below a top plate of a fixture, a duct opening communicating with the wiring duct in the top plate, and a duct cover attached to the duct opening, wherein the duct The cover is placed on the stepped portion formed in the front and rear portions inside the duct opening, and the position is detachably fixed by the engaging means provided on the duct cover and the stepped portion. An apparatus for pulling out cords of a wiring duct, characterized in that insertion holes for pulling out cords are provided between both left and right ends of the wire and the left and right opening edges of the duct opening.   The wiring duct is formed by providing a steel duct main body に on the lower surface of the top plate. The duct main body 杆 has a concave groove portion that opens upward, and a reinforcing ridge portion that is bent at the front and rear upper edges. A width member, and the width of the duct opening is set wider than the width of the concave groove, and the reinforcing flanges are stepped on the front and rear portions of the duct opening to form the stepped portion. The cord drawing device for a wiring duct according to claim 1.   3. A wiring duct cord drawing device according to claim 1, wherein said engaging means uses a structure in which a pin projecting from the back surface of said duct cover is engaged with an engaging hole formed in said stepped portion. .   The wiring duct cord drawing device according to claim 1 or 2, wherein the engaging means uses a structure in which a magnet provided on the back surface of the duct cover is attracted to the magnetic material of the stepped portion.   As the engaging means, an engagement hole is formed in the left and right center of the stepped portion, and pins engaging with the engagement hole are projected from the front and rear edge portions of the left and right center of the back surface of the duct cover. 3. A wiring duct cord drawing device according to claim 1 or 2, wherein a magnet that is attracted to the magnetic material of the stepped portion is embedded in the four corners of the back surface.

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