JP4558618B2 - Wiring duct - Google Patents

Description

  The present invention relates to a wiring duct that houses a large number of wires such as a switchboard.

  As this type of wiring duct, as shown in Japanese Patent Application Laid-Open No. 2004-184931, a wiring duct is generally constituted by a duct body and a lid for closing the opening of the duct body.

Such a wiring duct is used as follows.
First, the duct main body is fixedly attached to the attachment location inside the switchboard. A plurality of wires are housed inside the duct body. Then, a lid is attached to the duct body so that the wiring does not protrude outside the wiring duct.

  The wiring storage capacity of such a wiring duct is determined by the width dimension and height dimension of the duct body. For this reason, the basic shape of the wiring duct is the same pattern, but many versions with different width dimensions and height dimensions are generally prepared.

Japanese Patent Application Laid-Open No. 2004-184931

However, preparing a large number of versions having different width dimensions and height dimensions has a problem that it is necessary to have a lot of stock.
In addition, when the amount of wiring to be stored in a wiring duct already used in a switchboard or the like increases due to a change in the specifications of the equipment, etc., it may be necessary to replace the wiring duct itself in some cases. .
Furthermore, this type of wiring duct has a problem that it is difficult to save space because it is necessary to secure a certain space so that stress is not applied during transportation and storage.

  The present invention was devised in view of the above circumstances, and it is not necessary to prepare a large number of versions with different width dimensions. Even if the amount of wiring to be stored increases, the wiring duct is replaced with a new one. Therefore, it is an object of the present invention to provide a wiring duct that can save space during transportation and storage.

The wiring duct according to the present invention includes a pair of duct side walls fixed to be opposed to the attachment location, and a lid attached to the duct side wall so as to close a space between the duct side walls. The lid body has a pair of fitting portions that fit into the upper end of the duct side wall, and an expansion / contraction portion provided between the fitting portions, and the expansion / contraction portion has flexibility. A long tube-shaped member made of a material is connected in the horizontal direction, and it expands and contracts according to the distance between a pair of duct side walls, or a shape in which rain gutters are arranged in the horizontal direction. Two processed thin plates are combined so that the convex portions face outward, and in this state, the contacting portions of the two thin plates are connected.

  In addition, another wiring duct according to the present invention includes a pair of duct side walls that are fixed to be opposed to a mounting location, and a lid body that is made of a flexible material that closes a space between the duct side walls. The lid body is provided with a fitting portion that fits into an upper end of one duct side wall on one end side, and the lid body has an inner side of the other duct side wall among the duct side walls. An inner wall constituting a slit into which the other end enters is provided.

  The wiring duct according to the present invention includes a pair of duct side walls fixed to be opposed to the attachment location, and a lid attached to the duct side wall to close a space between the duct side walls. The lid body has a pair of fitting portions that fit into upper ends of the duct side walls, and a stretchable portion provided between the fitting portions, and the stretchable portion is between the pair of duct side walls. Therefore, it is possible to obtain a wiring duct having different width dimensions only by changing the distance between the pair of duct side walls. For this reason, it is not necessary to manufacture many versions that differ only in width dimensions, and there is an advantage that the inventory can be reduced. Further, there is an effect that a space for the duct side wall can be reduced during transportation and storage.

  Further, if the stretchable part is formed by connecting a plurality of long tubular members made of a flexible material in the lateral direction, the lid body can be used even when the distance between the duct side walls is shortened. The expansion and contraction part is kept beautiful without distortion.

  In addition, the expansion / contraction part combines two thin plates processed into a shape in which rain gutters are arranged in the horizontal direction so that the convex portions face outward, and in this state, the two thin plates are in contact with each other. If it is what connected the part, there exists a merit that an expansion-contraction part can be manufactured more simply and cheaply.

  In addition, the wiring duct includes a pair of duct side walls fixed to be opposed to the attachment location, and a lid made of a flexible material that closes a space between the duct side walls. The lid body is provided with a fitting portion that fits into one end side of the upper end of one duct side wall, and the slit into which the other end of the lid body enters the inside of the other duct side wall among the duct side walls. Even if the inner wall that constitutes is provided, it is not necessary to manufacture many versions that differ only in the width dimension, and there is an advantage that the inventory can be reduced. Further, there is an effect that a space for the duct side wall can be reduced during transportation and storage.

  FIG. 1 is a drawing of a wiring duct according to a first embodiment of the present invention. FIG. 1A is a schematic side view of the narrowest state, and FIG. 2 is a schematic side view of the state, FIG. 2 is a schematic perspective view of the duct side wall of the wiring duct according to the first embodiment of the present invention, and FIG. 3 is a wiring duct according to the first embodiment of the present invention. Fig. 4 is a schematic side view showing the state of storage of the duct side wall, and Fig. 4 is a drawing of a wiring duct according to the second embodiment of the present invention, and Fig. 4A is a schematic view of the narrowest state. FIG. 5B is a schematic side view of the widest state, and FIG. 5 is a view of a thin plate constituting the expansion / contraction part of the lid of the modified example of the wiring duct according to the second embodiment of the present invention. FIG. 6 is a schematic perspective view, FIG. 6 is a drawing of a wiring duct according to a third embodiment of the present invention, and FIG. FIG. 7B is a schematic side view of the widest state, and FIG. 7 is a view showing details of the expansion / contraction part of the lid constituting the wiring duct according to the third embodiment of the present invention. FIG. 8 is a schematic partially broken perspective view for explaining, FIG. 8 is a drawing of a wiring duct according to a fourth embodiment of the present invention, and FIG. 8 (A) is a schematic side view of the narrowest state. FIG. 9B is a schematic side view of the widest state, and FIG. 9 is a schematic enlarged view of part d in FIG. 8B.

  The wiring duct A according to the first embodiment of the present invention includes, for example, a space S between the pair of duct side walls 100A that are fixed to be opposed to a mounting location such as a switchboard, and the duct side walls 100A. The lid 200A is attached to the duct side wall 100A to be closed, and the lid 200A is provided between a pair of fitting portions 210A that fit into the upper end of the duct side wall 100A and the fitting portion 210A. The expansion / contraction part 220A expands and contracts according to the distance between the pair of duct side walls 100A, and one thin plate is formed in a bellows shape. .

  First, the duct side wall 100A is made of an insulating material such as synthetic resin. The duct side wall 100A has a standard length of 2 m, for example, and is cut or combined to have a necessary length.

  As shown in FIG. 2 and the like, the duct side wall 100A is integrally formed with a side wall portion 110A and a mounting portion 120A extending in a direction orthogonal to the inner side from the lower end of the side wall portion 110A toward the inner side. It is formed. Therefore, the duct side wall 100A is formed in a substantially L shape when viewed from the side. The upper end of the side wall 110A is slightly bent inward as shown in FIG. This is to make the side wall part 110A and the fitting part 210A flush with each other when a fitting part 210A of the lid 200A described later is fitted into the upper end of the side wall part 110A.

  The mounting portion 120A is provided with mounting holes 121A at regular intervals for mounting the duct side wall 100A to a mounting location such as a switchboard. As shown in FIG. 2, the mounting hole 121A is a semi-oval cutout formed from the outer edge of the mounting portion 121A toward the side wall portion 110A. Thus, if the mounting hole 121A is made into a notch, there is an advantage that the duct side wall 100A can be attached to and detached from the mounting location even when the mounting screw 300 is not completely removed.

  The duct side wall 100A configured in this way is a pair of left and right symmetrical pairs. And it attaches to a to-be-attached location so that side wall part 110A may become parallel. Therefore, the width dimension of the space S between the pair of duct side walls 100A is constant at any position.

  On the other hand, the lid body 200A includes a stretchable portion 220A in which a thin sheet having a length corresponding to the length of the duct side wall 100A is formed in a bellows shape, and a side view provided at both ends of the stretchable portion 220A. The fitting part 210A having a substantially inverted concave shape is integrated. The stretchable part 220A and the fitting part 210A are made of an insulating material such as synthetic resin, and the stretchable part 220A is made of a flexible material.

  The expansion / contraction part 220A is, for example, a thin plate material made of synthetic resin, and is alternately bent and formed in a bellows shape. Therefore, the expansion / contraction part 220A expands and contracts according to the distance between the pair of duct side walls 100A.

  On the other hand, the fitting portion 210A is a bowl-like object that is substantially concave in a downward shape when viewed from the side, and is fitted to the upper end of the side wall portion 110A of the duct side wall 100A to attach the lid 200A to the duct side wall 100A. .

  As shown in FIG. 1A, the wiring duct A composed of the duct side wall 100A and the lid body 200A configured as described above is arranged between a pair of duct side walls 100A as shown in FIG. The mounting distance is reduced and the mounting screw 300 is attached to the mounting location. Then, the fitting part 210A of the lid body 200A is fitted into the upper ends of the side wall parts 110A of both duct side walls 100A. In this case, the stretchable part 220A of the lid 200A is in a contracted state.

  Conversely, when there are many wirings to be stored, as shown in FIG. 1B, the distance between the pair of duct side walls 100A is increased and attached to the mounting location with mounting screws 300 or the like. Then, the fitting part 210A of the lid body 200A is fitted into the upper ends of the side wall parts 110A of both duct side walls 100A. In this case, the expansion / contraction part 220A of the lid 200A is in an extended state.

  When there is a change that accommodates more wiring with respect to the wiring duct A that accommodates less wiring, one or both of the pair of duct side walls 100A are moved according to the surrounding space. I will respond. At this time, if the mounting hole 121A is notched, the duct side wall 100A can be moved only by loosening without completely removing the mounting screw 300.

  By the way, as shown in FIG. 3, the wiring duct A can be transported and stored in a state where a plurality of duct side walls 100A are stacked, so that a space saving of storing a large number of wiring ducts in a small space is also achieved. can do. Further, since the lid 200A can be transported, stored, etc. with the expansion / contraction part 220A contracted, this can also contribute greatly to space saving.

Next, a wiring duct B according to a second embodiment of the present invention will be described with reference to FIG.
The difference between the wiring duct B according to the second embodiment of the present invention and the wiring duct A according to the first embodiment is an expansion / contraction portion 220B of the lid 200B.
The expansion / contraction part 220B of the lid 200B in the wiring duct B according to the second embodiment is formed by connecting a plurality of long tubular members 221B made of a flexible material in the lateral direction. .

  The tube-shaped member 221B is connected to the adjacent tube-shaped member 221B by an appropriate means such as an adhesive or high-frequency welding, thereby constituting an expandable portion 220B of the lid 200B. The expansion / contraction part 220B expands and contracts in the lateral direction due to the deformation of the tubular member 221B itself.

  The other portions of the lid 200B, that is, the fitting portions 210B provided at both ends in the lateral direction of the extendable portion 220B are equivalent to the fitting portions 210A in the wiring duct A according to the first embodiment described above. The duct side wall 200B is also equivalent to the duct side wall 100A in the wiring duct A according to the first embodiment described above.

  As a modification of the wiring duct B according to the second embodiment, a modification as shown in FIG. 5 is also conceivable. In this modification, the expansion / contraction part 220B is not configured by connecting the tube-shaped member 221B formed in a tube shape in the horizontal direction, but rain gutters are arranged in the horizontal direction as shown in FIG. It is configured by combining thin plates 400 made of synthetic resin or the like processed into various shapes. That is, the two thin plates 400 are combined so that the convex portion faces outward, and the contacted portions of the two thin plates 400 in this state are connected by an appropriate means such as an adhesive or high frequency welding. Thus, the stretchable part 220B is configured.

  Thus, if the expansion-contraction part 220B is comprised from the two thin plates 400, there exists an advantage that the expansion-contraction part 220B can be manufactured easily and cheaply than what connects the tubular member 221B to a horizontal direction.

Next, a wiring duct C according to a third embodiment of the present invention will be described with reference to FIGS.
In this wiring duct C, the expansion / contraction portion 220C of the lid 200C is composed of a plurality of plate members 222C, and this plate member 222C is nested. For example, what is shown in FIG. 6 and the like has a configuration in which a three-stage insert composed of three plate members 222C is connected to a central plate member 222C. The thinnest material is used for the innermost plate member 222C, and both end portions of the outer plate member 222C are formed in a substantially key shape so as to hold the innermost plate member 222C. In this manner, the outer plate member 222C is configured to hold the inner plate member 222C, thereby forming the stretchable portion 220C.

  The expansion / contraction part 220C can be resized because each plate member 222C can move forward and backward with respect to the plate member 222C positioned on the outer side. Although not shown in the drawings, each plate member 222C is provided with a stopper for preventing it from falling off a plate material 222C located one outside from the plate material 222C (the plate material 222C in which the plate material is held).

  A fitting portion 210C that fits into the upper end of the side wall portion 110C of the duct side wall 100C is provided at the outer end portion of the plate member 222C that is positioned on the outermost side of the expandable portion 220C.

  6 and the like can be expanded and contracted in both directions, but may be expanded and contracted only in one direction.

  Thus, the expansion / contraction part 220C is composed of a plurality of plate members 222C, and the plate member 222C is nested, and the wiring duct C according to the third embodiment is the same as the wiring duct B according to the second embodiment. Unlike the case where a plurality of tube-shaped members 221B are connected in the horizontal direction, even if the expansion / contraction part 220C is expanded to the maximum, no force is exerted on the expansion / contraction part 220C. There is a merit that such power does not work.

Next, a wiring duct D according to a fourth embodiment of the present invention will be described with reference to FIGS.
The wiring duct D according to the fourth embodiment of the present invention includes, for example, a pair of duct side walls 100D that are fixed to be opposed to a mounting location such as a switchboard, and a space S between the duct side walls 100D. A lid 200D made of a flexible material, and the lid 200D is provided with a fitting portion 210D that fits into the upper end of one duct side wall 110D on one end side. An inner wall 130D that constitutes a slit 140D into which the other end of the lid 200D enters is provided inside the other duct side wall 110D among the duct side walls 110D.

  The wiring duct D differs greatly from the wiring ducts A to C according to the first to third embodiments described above in that the slit 140D into which the end portion on the side not attached to the other duct side wall 100D enters. The constituting inner wall 130D is provided along the other duct side wall 100D.

  The lid body 200D is a thin plate made of synthetic resin, and a plurality of shallow grooves (not shown) are formed in parallel to the width direction. By forming such a groove, the lid 200D itself can be easily bent from the groove. One of the lids 200D is provided with a fitting portion 210D that fits into the upper end of one duct side wall 110D. Further, a substantially wedge-shaped lid-side stopper 230D as shown in FIG. 9 is provided on the other side of the lid 200D. The lid-side stopper 230D prevents the lid 200D from falling off by being caught by a wall-side stopper 131D provided at the upper end of the inner wall 130D described later when the distance between the pair of duct side walls 110D is maximized. It is.

  The inner wall 130D of the other duct side wall 100D is erected in parallel with the side wall part 110D from the mounting part 120D of the duct side wall 100D. And the space | interval between this inner wall 130D and side wall part 110D is set so narrow that the said cover body 200D can enter, and a foreign material does not penetrate | invade. A wall-side stopper 131D to which the lid-side stopper 230D is caught is provided at the upper end of the inner wall 130D.

  As shown in FIG. 8A, the minimum width dimension of the pair of side wall ducts 100D is a dimension when the free end side (the other end side) of the lid 200D is in contact with the bottom portion of the slit 140D, that is, the mounting portion 120D. is there. Conversely, as shown in FIG. 8B, the maximum width dimension of the pair of side wall ducts 100D is such that the free end side (the other end side) of the lid body 200D is located at the top of the slit 140D and the lid body 200D. Therefore, the lid-side stopper 230D is dimensioned to be caught on the wall-side stopper 131D so that it does not fall out of the slit 140D.

  The wiring duct D configured as described above is attached to the attachment location as follows. First, each side wall duct 100D is fixed to a mounting location between the minimum width dimension and the maximum width dimension of the pair of side wall ducts 100D. At this time, the other end of the lid 200D is prevented from entering the slit 140D. And wiring is accommodated in the space S sandwiched between the pair of side wall ducts 100D. Further, the fitting portion 210D of the lid 200D is fitted into the upper end of the duct side wall 110D on the side where the slit 040D is not provided, and the space S is closed by inserting the lid-side stopper 230D of the lid 200D into the slit 140D. .

It is drawing of the wiring duct which concerns on the 1st Embodiment of this invention, Comprising: The figure (A) is a schematic side view of the state made the narrowest, The figure (B) is the outline of the state made the widest FIG. It is a schematic perspective view of the duct side wall of the wiring duct which concerns on the 1st Embodiment of this invention. It is a schematic side view which shows the accommodation state of the duct side wall which comprises the wiring duct which concerns on the 1st Embodiment of this invention. It is drawing of the wiring duct which concerns on the 2nd Embodiment of this invention, Comprising: The figure (A) is a schematic side view of the state made the narrowest, The figure (B) is the outline of the state made the widest. FIG. It is a schematic perspective view of the thin plate which comprises the expansion-contraction part of the cover body of the modification of the wiring duct which concerns on the 2nd Embodiment of this invention. It is drawing of the wiring duct which concerns on the 3rd Embodiment of this invention, Comprising: The figure (A) is a schematic side view of the state made the narrowest, The figure (B) is the outline of the state made the widest. FIG. It is a schematic partially broken perspective view for demonstrating the detail of the expansion-contraction part of the cover body which comprises the wiring duct which concerns on the 3rd Embodiment of this invention. It is drawing of the wiring duct which concerns on the 4th Embodiment of this invention, Comprising: The figure (A) is a schematic side view of the state made the narrowest, The figure (B) is the outline of the state made the widest. FIG. It is a schematic enlarged view of d part of FIG.8 (B).

Explanation of symbols

100A Duct side wall 200A Lid 210A Fitting part 220A Extendable part A Wiring duct

Claims (3)

A pair of duct side walls fixed opposite to the mounting location; and a lid body attached to the duct side wall so as to close a space between the duct side walls. A long tube made of a flexible material , and a pair of fitting portions that fit into the upper end of the fitting portion, and a stretchable portion provided between the fitting portions. A wiring duct characterized in that a plurality of shaped members are connected in the lateral direction and expands and contracts according to the distance between a pair of duct side walls . A pair of duct side walls fixed opposite to the mounting location; and a lid body attached to the duct side wall so as to close a space between the duct side walls. A pair of fitting portions that fit into the upper ends of the two and an expansion / contraction portion provided between the fitting portions, and the expansion / contraction portion is processed into a shape in which rain gutters are arranged in a lateral direction. The two thin plates are combined so that the convex portion faces outward, and in this state, the contacted portions of the two thin plates are connected, and expands and contracts according to the distance between the pair of duct side walls. A wiring duct characterized by A pair of duct side walls fixed to be opposed to the mounting location, and a lid made of a flexible material that closes a space between the duct side walls, the lid body, A fitting portion that fits into the upper end of one duct side wall is provided on one end side, and an inner wall that forms a slit into which the other end of the lid body enters is provided inside the other duct side wall of the duct side walls. Wiring duct characterized by being .

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