JP7543123B2 - Spacing member, wiring/piping material installation structure, and duct installation device - Google Patents

Description

The present invention relates to a spacing member, a wiring/piping material installation structure, and a duct installation device.

For example, indoors, long wiring and piping materials such as optical cables, hot and cold water supply pipes, air conditioning pipes, and air conditioner refrigerant pipes are laid along the walls of indoor walls, which are the walls of a building. In addition, wiring and piping materials are generally housed in protective ducts fixed to the walls of indoor walls (see, for example, Patent Document 1). Alternatively, wiring and piping materials are elevated from the walls by spacers fixed to the walls of indoor walls (see, for example, Patent Document 2).

JP 2002-98292 A JP 2007-2999 A

On indoor walls, areas adjacent to where wiring and piping materials are installed discolor when exposed to ultraviolet light. On the other hand, on indoor walls, where wiring and piping materials are installed, ultraviolet light is blocked by protective ducts or spacers, suppressing discoloration caused by ultraviolet light exposure. For this reason, when the wiring and piping materials are removed from the indoor wall or moved to another location, a clear boundary appears on the indoor wall between the discolored areas and areas where discoloration is suppressed, reducing the appearance.

The spacing member for solving the above problems has a main body that is interposed between the wall of a building and the wiring/piping material laid along the surface of the wall to space the wiring/piping material from the wall surface, and the main body is made of a material that transmits ultraviolet rays.

For the spacing member, the wiring/piping material may be housed in a long duct that defines an internal path for laying the wiring/piping material, and the main body may have an attachment part to which the duct is attached, and a fixing part that fixes the attachment part to the wall.

For a spacing member, the body may be elongate, the body being shorter than the dimension along the longitudinal axis of the duct.
The spacing member may be configured so that the duct is attached to the attachment portion via a double-sided tape, and the attachment portion may have an attachment surface to which the double-sided tape is attached.

Regarding the spacing member, the spacing member may have a plurality of legs that contact the wall surface in a fixed state relative to the wall, and the plurality of legs may be spaced apart from each other.
For the spacing member, the fixing portions may be provided on both sides of the attachment portion, the attachment portion and both fixing portions may be aligned along a reference line, and the dimension of the main body along the reference line may be less than or equal to the width of the duct.

A wiring/piping material installation structure that solves the above problems may include a spacing member made of a material that transmits ultraviolet light, fixed to the interior wall of a building, a long duct that defines an internal path for laying the wiring/piping material attached to the spacing member, and the wiring/piping material installed in the path of the duct.

The duct installation device for solving the above problems is provided with a wide duct and a narrow duct that are long and have relatively different widths, which define an internal path for laying wiring and piping materials, and a main body that is interposed between a building wall and the wide duct or the narrow duct laid along the wall surface of the wall to separate the wiring and piping materials from the wall surface, and the main body includes a spacing member made of a material that transmits ultraviolet light, and the main body has an attachment part to which the wide duct or the narrow duct is attached, and when the spacing member is viewed from a direction perpendicular to the wall surface as a front view, the shape of the spacing member in the front view is a rectangle whose long side is the width of the wide duct and whose short side is the width of the narrow duct, or an ellipse whose long axis is the width of the wide duct and whose short axis is the width of the narrow duct.

The present invention makes it possible to prevent deterioration of the appearance of the wall when wiring and piping materials are removed or relocated.

1 is a perspective view showing a wiring/piping material installation structure according to a first embodiment; FIG. FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, showing the fixing portion. 13 is a perspective view showing a state in which a fixing nail is inserted into an insertion hole of the spacing member. FIG. 13 is a cross-sectional view showing a state in which a fixing nail is inserted into an insertion hole of the spacing member. FIG. FIG. 4 is a cross-sectional plan view showing the wide duct attached to the spacing member. FIG. 13 is a perspective view showing a state in which the spacing member is fixed to an indoor wall for laying a narrow duct. FIG. 13 is a perspective view showing the narrow duct attached to the spacing member. FIG. 4 is a cross-sectional plan view showing the narrow duct attached to the spacing member. FIG. 13 is a front view showing a spacing member according to a second embodiment. FIG. 13 is a perspective view showing a spacing member according to a second embodiment. FIG. 11 is a plan view showing a state in which the spacing member of the second embodiment is fixed to a wall. FIG. 13 is a perspective view showing another example of a spacing member. FIG. 11 is a cross-sectional plan view showing another example of a spacing member. FIG. 13 is a front view showing a spacing member according to another embodiment of the present invention.

First Embodiment
Hereinafter, a first embodiment embodying a spacing member, a wiring/piping material installation structure, and a duct installation device will be described with reference to FIGS. 1 to 10. FIG.

As shown in FIG. 1, a long duct 10 made of synthetic resin material is installed on the wall surface Wa of an indoor wall W serving as a building wall, via a number of spacing members 20. The duct 10 is installed on the indoor wall W with its longitudinal axis extending vertically.

The duct 10 is constructed by integrating a long, gutter-shaped duct body 11 with a long, lid body 15. The duct body 11 has a long, plate-shaped bottom wall 12 and two side walls 13 that rise up from the inner surface 12a of the bottom wall 12 at a distance. The two side walls 13 face each other at a distance in the width direction of the bottom wall 12. Each side wall 13 extends along the long edge of the bottom wall 12 over the entire longitudinal axis of the bottom wall 12.

The duct body 11 has a U-shaped cross section in the width direction. The duct body 11 has an accommodation space 14 defined by a bottom wall 12 and two side walls 13. The duct body 11 opens between the two side walls 13. Each of the two side walls 13 is bent so as to protrude outward. The duct body 11 is attached to the spacing member 20 by attaching the outer surface 12b of the bottom wall 12 to the spacing member 20.

The lid body 15 has a long, plate-shaped top plate 16 and two standing walls 17 that rise from the inner surface 16a of the top plate 16 at a distance. The two standing walls 17 face each other at a distance in the width direction of the top plate 16. Each standing wall 17 extends along the entire longitudinal axis of the top plate 16 along the long edge of the top plate 16. The lid body 15 has a U-shaped cross section in the width direction. The lid body 15 opens between the two standing walls 17. Each of the two standing walls 17 is bent so as to protrude outward.

The vertical walls 17 of the lid 15 are fitted to the outside of each side wall 13 of the duct body 11. The storage space 14 of the duct body 11 is closed over the entire longitudinal axis by the top plate 16 of the lid 15. An installation path 18 is defined inside the duct 10. The installation path 18 is defined by the bottom wall 12 and side walls 13 of the duct body 11 and the top plate 16 and vertical walls 17 of the lid 15. The installation path 18 is defined over the entire longitudinal axis of the duct 10.

An optical cable 19 is laid as wiring/piping material in the laying path 18 of the duct 10. Examples of wiring/piping material include coaxial cable, communication cable, and flexible electrical conduit made of synthetic resin.

The duct 10 includes a wide duct 101 and a narrow duct 102 which have relatively different widths.
7 or 10, in the wide duct 101, the dimension of the bottom wall 12 in the width direction is width W1, and in the narrow duct 102, the dimension of the bottom wall 12 in the width direction is width W2. The width W1 of the wide duct 101 is wider than the width W2 of the narrow duct 102.

As shown in Fig. 2 or 3, the spacing member 20 includes a rectangular plate-shaped main body 21 and a double-sided tape 41 attached to the main body 21. The main body 21 has an attachment part 22 to which the duct 10 is attached, and a fixing part 31 that fixes the attachment part 22 to an indoor wall W. The main body 21 is short and shorter than the dimension along the longitudinal axis of the duct 10.

In detail, the main body 21 has a rectangular plate-shaped attachment part 22 and rectangular block-shaped fixing parts 31 provided on both sides of the attachment part 22. The attachment part 22 and both fixing parts 31 are integrally molded. The attachment part 22 and both fixing parts 31 are made of a synthetic resin material that is colorless and transparent and can transmit ultraviolet rays. Examples of such synthetic resin materials include polycarbonate and acrylic.

The dimension of the attachment portion 22 in the plate thickness direction Z is defined as the thickness. The attachment portion 22 and both fixing portions 31 are aligned along the reference line L. The direction in which the reference line L extends is defined as the wide direction X of the main body 21. Viewing the main body 21 in the plate thickness direction Z is defined as a front view of the main body 21. In a front view of the main body 21, the main body 21 has a rectangular shape. Also, a direction perpendicular to both the wide direction X and the plate thickness direction Z is defined as the narrow direction Y of the main body 21. Therefore, in a front view of the main body 21 viewed in the plate thickness direction Z, the long sides of the main body 21 extend in the wide direction X, and the short sides of the main body 21 extend in the narrow direction Y.

The dimension L1 of the main body 21 in the wide direction X is the same as the width W1 of the wide duct 101. In other words, the dimension of the main body 21 along the reference line L is the same as the wide duct 101. The dimension L2 of the main body 21 in the narrow direction Y is the same as the width W2 of the narrow duct 102.

The attachment portion 22 has an adhesive surface 22a on one side in the plate thickness direction Z. When viewed from the front of the main body 21, the adhesive surface 22a is rectangular. The adhesive surface 22a is also flat. One side of the double-sided tape 41 is attached to the adhesive surface 22a.

The dimension of the fixing portion 31 in the plate thickness direction Z is defined as the thickness. The thickness of each fixing portion 31 is thicker than the thickness of the attachment portion 22. Each of the two fixing portions 31 has two insertion holes 32. Therefore, the main body 21 has four insertion holes 32. Each of the four insertion holes 32 opens to a first end face 31a and a second end face 31b in the plate thickness direction Z. The first end face 31a of the fixing portion 31 is a face aligned with the attachment surface 22a of the attachment portion 22 when viewed from the front of the main body 21. Each insertion hole 32 opens to the first end face 31a and the second end face 31b so that its longitudinal axis extends in the narrow width direction Y.

As shown in FIG. 4 or FIG. 5, the dimension of each insertion hole 32 in the narrow width direction Y gradually decreases from the first end face 31a toward the center of the plate thickness direction Z of the fixed part 31, and gradually decreases from the second end face 31b toward the center of the plate thickness direction Z of the fixed part 31. Therefore, the inner surface that defines each insertion hole 32 and faces the narrow width direction Y is inclined from the first end face 31a toward the center of the plate thickness direction Z of the fixed part 31, and is inclined from the second end face 31b toward the center of the plate thickness direction Z of the fixed part 31.

A fixing nail 50 for fixing the spacing member 20 to the indoor wall W is inserted into each insertion hole 32. The fixing nail 50 has a head 50a and a shaft 50b that is integral with the head 50a. The length of the shaft 50b is sufficiently longer than the thickness of the fixing part 31.

Each fixing portion 31 has a head recess 31c around the insertion hole 32 of the first end face 31a. The head recess 31c is slightly recessed from the first end face 31a toward the insertion hole 32. The head recess 31c is an elongated hole surrounding the insertion hole 32. The width of the head recess 31c in the wide direction X is slightly larger than the diameter of the head 50a.

2, the first end surface 31a of each fixing portion 31 is located in a position that protrudes in the plate thickness direction Z from the adhesive surface 22a of the attachment portion 22. The adhesive surface 22a is located in a position that is recessed in the plate thickness direction Z from the two first end surfaces 31a. The dimension from the adhesive surface 22a to the first end surface 31a in the plate thickness direction Z is smaller than the thickness of the double-sided tape 41. Therefore, when one adhesive surface 41a of the double-sided tape 41 is attached to the adhesive surface 22a, the other adhesive surface 41a of the double-sided tape 41 protrudes from the first end surface 31a. It can be said that the attachment portion 22 is constituted by the adhesive surface 22a to which the double-sided tape 41 is attached.

The spacing member 20 is composed of a main body 21 and a double-sided tape 41 attached to an adhesive surface 22 a of the attachment portion 22 of the main body 21 .
The duct installation device 60 is composed of the wide duct 101, the narrow duct 102, and the spacing member 20. In the duct installation device 60, the wide duct 101 and the narrow duct 102 are long and define the installation path 18 of the optical cable 19 therein, and have relatively different widths. In the duct installation device 60, the spacing member 20 includes a main body 21 that is interposed between the indoor wall W and the wide duct 101 or the narrow duct 102 to space the optical cable 19 from the wall surface Wa, and the main body 21 is made of a material that transmits ultraviolet rays. The main body 21 has an attachment portion 22 to which the wide duct 101 or the narrow duct 102 is attached. The shape of the attachment portion 22 of the spacing member 20 in a front view is a rectangle whose long side has the same width as the wide duct 101 and whose short side has the same width as the narrow duct 102 .

The installation structure of the duct 10 using the spacing member 20 will be described.
First, the installation structure of the wide duct 101 will be described.
As shown in Fig. 1, a wide duct 101 is installed on a wall surface Wa of an indoor wall W via a plurality of spacing members 20. The indoor wall W is viewed from the front in a direction perpendicular to the wall surface Wa. In the front view of the indoor wall W, the plurality of spacing members 20 are fixed to the indoor wall W such that the wide direction X is the horizontal direction and the narrow direction Y is the vertical direction.

As shown in FIG. 6, each spacing member 20 is fixed to the indoor wall W by driving the fixing nails 50 inserted into each insertion hole 32 into the indoor wall W. The fixing nails 50 are inserted one by one into the insertion holes 32.

Of the two through holes 32 aligned vertically, the fixing nail 50 inserted into the upper one is inserted into the through hole 32 so that the shaft 50b protrudes obliquely upward from the first end face 31a to the second end face 31b. Of the two through holes 32 aligned vertically, the fixing nail 50 inserted into the lower one is inserted into the through hole 32 so that the shaft 50b protrudes obliquely downward from the first end face 31a to the second end face 31b. Each fixing nail 50 is guided so as to be inclined obliquely by the inclined surface of the through hole 32. At this time, the fixing nail 50 is inserted into the through hole 32 so that the distance between the shafts 50b adjacent to each other in the narrow direction Y increases as the tip of the fixing nail 50 moves away from the second end face 31b of the fixing part 31. A part of each head 50a is accommodated in the head recess 31c.

As shown in FIG. 1, a plurality of spacing members 20 are fixed to an indoor wall W at vertical intervals. A wide duct 101 is attached to the plurality of spacing members 20. The wide duct 101 is laid with its longitudinal axis extending vertically. The wide duct 101 has the outer surface 12b of the bottom wall 12 of the duct body 11 attached to the double-sided tape 41 of each spacing member 20. The wide duct 101 is attached to the spacing members 20 by the double-sided tape 41.

As shown in FIG. 7, the outer surface 12b of the bottom wall 12 of the wide duct 101 is spaced from the wall surface Wa of the indoor wall W by the thickness of the spacing member 20. Therefore, a gap S corresponding to the thickness of the spacing member 20 exists between the part of the outer surface 12b of the bottom wall 12 of the wide duct 101 that does not face the spacing member 20 and the wall surface Wa of the indoor wall W. The thickness of the spacing member 20 is the sum of the thickness of the fixing portion 31 in the main body 21 and the thickness of the double-sided tape 41 protruding from the first end surface 31a.

The width W1 of the wide duct 101 is the same as the dimension L1 of the main body 21. Therefore, when the wide duct 101 is attached to the spacing member 20 with both end faces in the width direction of the wide duct 101 aligned with both end faces in the width direction X of the main body 21 when viewed from the front of the indoor wall W, the two fixing parts 31 are hidden behind the wide duct 101. In other words, the insertion holes 32 of the fixing parts 31 and the heads 50a of the fixing nails 50 are covered by the wide duct 101.

Then, multiple optical cables 19 are housed in a wide duct 101 laid along the wall surface Wa of the indoor wall W. The optical cables 19 are laid along the laying path 18 of the wide duct 101. Therefore, in the laying structure of the optical cables 19, a spacing member 20 made of a material that transmits ultraviolet rays is fixed to the wall surface Wa of the indoor wall W, and a long wide duct 101 that defines the laying path 18 of the optical cables 19 inside is attached to the spacing member 20. In the laying structure of the optical cables 19, the optical cables 19 are laid inside the wide duct 101.

Next, the installation structure of the narrow duct 102 will be described.
8, in a front view of the indoor wall W, the spacing members 20 are fixed to the indoor wall W such that the narrow direction Y is horizontal and the wide direction X is vertical. The method of fixing the spacing members 20 to the indoor wall W is the same as when laying the wide duct 101, and therefore a detailed description thereof will be omitted.

As shown in FIG. 9, the spacing members 20 are fixed to the indoor wall W at vertical intervals. Note that FIG. 9 shows only one spacing member 20. Narrow ducts 102 are attached to the spacing members 20. The narrow ducts 102 are laid with their longitudinal axes extending vertically. Note that the method of attaching the narrow ducts 102 to the spacing members 20 is the same as the method of attaching the wide ducts 101 to the spacing members 20, so a detailed explanation is omitted.

As shown in FIG. 10, the outer surface 12b of the bottom wall 12 of the narrow duct 102 is spaced from the wall surface Wa of the indoor wall W by the thickness of the spacing member 20. Therefore, a gap S corresponding to the thickness of the spacing member 20 exists between the part of the outer surface 12b of the bottom wall 12 of the narrow duct 102 that does not face the spacing member 20 and the wall surface Wa of the indoor wall W. The thickness of the spacing member 20 is the sum of the thickness of the fixing portion 31 in the main body 21 and the thickness of the double-sided tape 41 protruding from the first end surface 31a.

The width W2 of the narrow duct 102 is the same as the dimension L2 of the main body 21. Therefore, when the narrow duct 102 is attached to the spacing member 20 with both end faces in the width direction of the narrow duct 102 aligned with both end faces in the narrow direction Y of the main body 21 in a front view of the indoor wall W, the main body 21 is hidden behind the narrow duct 102. In other words, the insertion hole 32 of the fixing part 31 and the head 50a of the fixing nail 50 are covered by the narrow duct 102.

A plurality of optical cables 19 are housed in a narrow duct 102 laid along the wall surface Wa of the indoor wall W. The optical cables 19 are laid along the laying path 18 of the narrow duct 102.

Therefore, the spacing member 20 exists between the indoor wall W and the optical cable 19 laid along the wall surface Wa of the indoor wall W via the wide duct 101 or narrow duct 102. The spacing member 20 also includes a main body 21 that separates the optical cable 19 in the wide duct 101 or narrow duct 102 from the wall surface Wa, and the main body 21 is made of a material that transmits ultraviolet rays.

Therefore, in the laying structure of the optical cable 19, a spacing member 20 made of a material that transmits ultraviolet rays is fixed to the wall surface Wa of the indoor wall W, and a long narrow duct 102 that defines the laying path 18 of the optical cable 19 therein is attached to the spacing member 20. In the laying structure of the optical cable 19, the optical cable 19 is laid inside the narrow duct 102.

Next, the functions of the spacing member 20, the installation structure for the optical cable 19, and the duct installation device 60 will be described.
A plurality of spacing members 20 are fixed to the indoor wall W at intervals in the vertical direction, and a gap S corresponding to the thickness of the spacing members 20 exists between the outer surface 12b of the bottom wall 12 of the wide duct 101 or the narrow duct 102 and the wall surface Wa of the indoor wall W. In other words, the wall surface Wa of the indoor wall W is not covered by the wide duct 101 or the narrow duct 102 except for the fixing points of the spacing members 20.

As a result, ultraviolet rays are also irradiated to the portion of the wall surface Wa of the indoor wall W that faces the outer surface 12b of the wide duct 101 or narrow duct 102, i.e., the installation path 18 of the optical cable 19. As a result, ultraviolet rays are also irradiated to the portion of the wall surface Wa of the indoor wall W that faces the wide duct 101 or narrow duct 102, and discoloration occurs due to the irradiation of ultraviolet rays.

The parts of the wall surface Wa of the indoor wall W where the spacing member 20 is fixed are covered by the spacing member 20, which is a colorless and transparent material that transmits ultraviolet light. Therefore, ultraviolet light is irradiated onto the parts of the wall surface Wa of the indoor wall W where the spacing member 20 is fixed, and the parts change color as a result of the irradiation with ultraviolet light.

According to the first embodiment, the following effects can be obtained.
(1-1) By separating the optical cable 19 housed in the wide duct 101 or the narrow duct 102 from the indoor wall W by the spacing member 20, ultraviolet rays are irradiated to the wall surface Wa of the indoor wall W, which is opposed to the wide duct 101 or the narrow duct 102 housing the optical cable 19, and is not fixed to the spacing member 20. The main body 21 of the spacing member 20 is made of a colorless and transparent synthetic resin material through which ultraviolet rays can pass. Therefore, ultraviolet rays are irradiated to the wall surface Wa of the indoor wall W, which is covered by the spacing member 20. Therefore, the wall surface Wa of the indoor wall W, which is opposed to the wide duct 101 or the narrow duct 102, also changes color due to irradiation with ultraviolet rays. In other words, a clear difference is unlikely to occur between the color of the wall surface Wa at the portion opposed to the laying path 18 of the optical cable 19 and the color of the wall surface Wa at the portion adjacent to the laying path 18. Therefore, when the optical cable 19 is removed from the indoor wall W together with the wide duct 101 or the narrow duct 102 or moved to another location, a boundary between discolored areas and areas where discoloration is suppressed is unlikely to appear on the wall surface Wa of the indoor wall W, and deterioration in the appearance of the indoor wall W can be suppressed.

(1-2) The main body 21 of the spacing member 20 has an attachment portion 22 and a fixing portion 31. A wide duct 101 or a narrow duct 102 is attached to the attachment portion 22. Therefore, by using the spacing member 20, the optical cable 19 separated from the indoor wall W can be housed in the wide duct 101 or the narrow duct 102, and the optical cable 19 can be protected by the wide duct 101 or the narrow duct 102.

(1-3) The main body 21 of the spacing member 20 is short and shorter than the dimension along the longitudinal axis of the wide duct 101 or narrow duct 102. Therefore, even if multiple spacing members 20 are used to separate the wide duct 101 or narrow duct 102 from the indoor wall W, the distance between adjacent spacing members 20 can be increased and the area of the wall surface Wa of the indoor wall W that is covered by the spacing members 20 can be reduced.

(1-4) Double-sided tape 41 is attached to the attachment surface 22a of the attachment portion 22. Therefore, the wide duct 101 or narrow duct 102 is attached to the main body 21 by the double-sided tape 41. Therefore, the wide duct 101 or narrow duct 102 can be attached to the main body 21 with a simple structure such as the double-sided tape 41.

(1-5) The dimension L1 of the main body 21 in the wide direction X is the same as the width W1 of the wide duct 101, and the dimension L2 of the main body 21 in the narrow direction Y is the same as the width W2 of the narrow duct 102. Therefore, when the spacing member 20 is fixed to the indoor wall W so that the wide direction X of the main body 21 is horizontal, and the wide duct 101 is attached to the double-sided tape 41 of the spacing member 20, the spacing member 20 can be covered by the wide duct 101. Similarly, when the spacing member 20 is fixed to the indoor wall W so that the narrow direction Y of the main body 21 is horizontal, and the narrow duct 102 is attached to the double-sided tape 41 of the spacing member 20, the spacing member 20 can be covered by the narrow duct 102. Therefore, it is possible to prevent the spacing member 20 from protruding from the wide duct 101 or the narrow duct 102, which would deteriorate the appearance.

Second Embodiment
Next, a second embodiment of the spacing member, the wiring/piping material installation structure, and the duct installation device will be described with reference to Figures 11 to 13. Note that since the second embodiment has a configuration in which the main body 21 of the first embodiment is modified, detailed descriptions of similar parts will be omitted.

As shown in FIG. 11 or 12, the attachment portion 22 and the fixing portion 31 of the main body 21 have the same dimensions in the plate thickness direction Z. Therefore, the main body 21 has the same dimensions in the plate thickness direction Z except for the portion where the insertion hole 32 is provided. Note that the dimension in the width direction X of the fixing portion 31 of the second embodiment is the same as the dimension in the width direction X of the fixing portion 31 of the first embodiment. The attachment portion 22 is the portion sandwiched between the two fixing portions 31.

The main body 21 has one insertion hole 32 in each fixed part 31. The insertion hole 32 of one fixed part 31 and the insertion hole 32 of the other fixed part 31 are misaligned in the narrow width direction Y. The insertion hole 32 of one fixed part 31 is located toward one end in the narrow width direction Y, and the insertion hole 32 of the other fixed part 31 is located toward the other end in the narrow width direction Y.

The spacing member 20 has legs 33 protruding from the second end surface 31b of each fixed portion 31, two at a time. Each leg 33 is round bar-shaped. The first end surface of each leg 33 is joined to the second end surface 31b of the fixed portion 31, and the second end surface of each leg 33 is a contact surface 33a with the wall surface Wa of the indoor wall W. The contact surface 33a is a flat surface. The length along the axis of the legs 33 is the same for all four legs 33. The length along the axis of the legs 33 may be appropriately changed according to the unevenness of the wall surface Wa of the indoor wall W. The legs 33 are arranged at the four corners of the main body 21. Therefore, the legs 33 arranged in the wide direction X are arranged at a distance from each other in the wide direction X, and the legs 33 arranged in the narrow direction Y are arranged at a distance from each other in the narrow direction Y.

According to the second embodiment, the following effects can be obtained.
(2-1) Four legs 33 are provided, and adjacent legs 33 are spaced apart in the wide direction X and adjacent legs 33 are spaced apart in the narrow direction Y. Therefore, as shown in Fig. 13, if the indoor wall W has irregularities, the legs 33 can straddle the irregularities, and the spacing member 20 can be fixed to the indoor wall W without being affected by the irregularities of the indoor wall W.

This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that no technical contradiction occurs.
In the first embodiment, the attachment portion 22 and the fixing portion 31 may have the same dimension in the plate thickness direction Z, as in the second embodiment. In this case, there is no step between the fixing portion 31 and the attachment portion 22.

In the first embodiment, the fixing nails 50 adjacent to each other in the narrow width direction Y may be inserted into the insertion holes 32 so that the distance between the shanks 50b decreases with increasing distance from the second end surface 31b of the fixing portion 31. Alternatively, the fixing nails 50 may be inserted into the insertion holes 32 so that the shanks 50b extend in the plate thickness direction Z. Alternatively, the fixing nails 50 may be inserted into the insertion holes 32 so that the shanks 50b of three or more fixing nails 50 all extend in different directions.

In the first embodiment, the spacing member 20 may be fixed to the indoor wall W by inserting the fixing nails 50 into one, two or three of the four insertion holes 32 .
14 , a plurality of pieces of double-sided tape 41 may be attached to the adhesive surface 22a of the attachment portion 22. For example, two pieces of double-sided tape 41 may be attached side by side in the wide direction X of the main body 21.

As shown in FIG. 14, multiple ducts 10 may be attached to one spacing member 20. In this case, the same number of double-sided tapes 41 as the number of ducts 10 may be attached to the attachment surface 22a of one main body 21, and the ducts 10 may be attached to each double-sided tape 41. Furthermore, one large double-sided tape 41 may be attached to the attachment surface 22a of one main body 21, and multiple ducts 10 may be attached to that single double-sided tape 41.

As shown in FIG. 14, the fixing part and the attachment part may be in the same position. In this case, the insertion hole 32 is placed in the center of the attachment part, and the attachment part also functions as the fixing part. In this case, the insertion hole 32 is covered with double-sided tape 41.

The position of the fixing part 31 of the main body 21 may be changed as appropriate as long as the attachment part 22 can be fixed to the indoor wall W, and the position of the fixing part 31 is changed according to the position of the insertion hole 32.
As shown in FIG. 15 , in the spacing member 20 of the first embodiment, the dimension along the reference line L between the fixing portions 31 that sandwich the attachment portion 22 may be equal to or greater than the width of the duct 10 .

When configured in this manner, the duct 10 can be fitted or inserted between both fixing parts 31. Therefore, the space between both fixing parts 31 can be used to position the duct 10. As a result, it becomes easier to position the duct 10 relative to the spacing member 20.

In addition, even when the duct 10 is attached to the attachment portion 22, both fixing portions 31 are exposed from the outside in the width direction of the duct 10. Therefore, with the duct 10 attached to the spacing member 20, the fixing nails 50 can be inserted into the insertion holes 32 of the fixing portions 31, and the inserted fixing nails 50 can be fixed to the indoor wall W. Therefore, with the duct 10 attached to the spacing member 20, the spacing member 20 can be fixed to the indoor wall W, making the installation work of the duct 10 easier.

As shown in FIG. 16, in the spacing member 20 of the first embodiment, the shape of the main body 21 in a front view may be an ellipse whose major axis is the same width as the wide duct 101 and whose minor axis is the same width as the narrow duct 102. In this case, the insertion holes 32 are arranged in the center of the main body 21. The central area of the main body 21 where the insertion holes 32 are formed becomes the fixed part. The double-sided tape 41 is also circular. The double-sided tape 41 is large enough to cover the four insertion holes 32.

The double-sided tape 41 may be attached to the outer surface 12b of the bottom wall 12 in advance, or may be attached to the attachment surface 22a of the attachment portion 22 or the outer surface 12b of the bottom wall 12 when the duct 10 is installed.

The dimension of the main body 21 in the wide direction X may be smaller than the width W1 of the wide duct 101 or the width W2 of the narrow duct 102.
The double-sided tape 41 may be elongated so as to match the overall dimension of the longitudinal axis of the duct 10 .

○ The method of fixing the main body 21 to the indoor wall W may be double-sided tape instead of the fixing nails 50. In this configuration, the spacing member 20 is fixed to the wall surface Wa with double-sided tape, and the double-sided tape is attached to the fixing point of the spacing member 20 on the wall surface Wa. For example, a comparative example is a case in which the spacing member 20 is not used and the outer surface 12b of the bottom wall 12 of the duct 10 and the wall surface Wa are attached with double-sided tape placed along the entire longitudinal axis of the duct 10. When the spacing member 20 is attached to the wall surface Wa with double-sided tape, the amount of double-sided tape attached to the wall surface Wa can be reduced compared to the comparative example, and damage to the indoor wall W when the double-sided tape is peeled off can be reduced.

The wiring and piping materials may not be housed in the duct 10 but may be supported directly by the spacing member 20, or may be directly attached to the main body 21 by a mounting member attached to the main body 21.
Although the duct 10 is configured to have a cylindrical shape and includes the duct body 11 and the cover 15 in the above embodiment, the duct 10 may be configured to have only the duct body 11 without the cover 15 .

The main body 21 may be composed of the attachment portion 22 and the fixing portion 31 arranged on one side of the attachment portion 22 .
The main body 21 of the spacing member 20 may be colored and transparent so that ultraviolet light can pass through.

○ The wall may be an exterior wall.

L...reference line, W...indoor wall as wall, Wa...wall surface, 10...duct, 18...laying route, 19...optical cable as wiring/piping material, 20...spacing member, 21...main body, 22...attachment part, 22a...adhesive surface, 31...fixing part, 33...legs, 41...double-sided tape, 60...duct installation device, 101...wide duct, 102...narrow duct.

Claims (8)

A spacing member comprising a main body that is interposed between a wall of a building and wiring/piping material laid along the surface of the wall to separate the wiring/piping material from the wall surface, the main body being made of a transparent material that transmits ultraviolet light. The wiring/piping material is accommodated in a long duct that defines an installation path for the wiring/piping material therein;
2. The spacing member according to claim 1, wherein the body has a mounting portion to which the duct is attached, and a fixing portion for fixing the mounting portion to the wall. The spacing member according to claim 2, wherein the main body is short and shorter than the dimension along the longitudinal axis of the duct. The spacing member according to claim 2 or 3, in which the duct is attached to the attachment portion via double-sided tape, and the attachment portion has an attachment surface to which the double-sided tape is attached. The spacing member according to any one of claims 2 to 4, wherein the spacing member has a plurality of legs that contact the wall surface in a fixed state relative to the wall, and the plurality of legs are spaced apart from each other. The spacing member according to any one of claims 2 to 5, wherein the fixing parts are provided on both sides of the attachment part, the attachment part and both fixing parts are aligned along a reference line, and the dimension of the main body along the reference line is equal to or less than the width of the duct. The spacing member is fixed to a wall surface of an interior wall of the building;
the spacing member includes a main body that is interposed between the indoor wall and a wiring/piping material laid along the wall surface of the indoor wall to space the wiring/piping material from the wall surface, the main body being made of a transparent material that transmits ultraviolet light;
A long duct is attached to the spacing member, the long duct defining an interior path for laying the wiring/piping material,
A wiring/piping material installation structure, characterized in that the wiring/piping material is installed in the installation path of the duct. A wide duct and a narrow duct having relatively different widths, each of which defines an internal path for laying wiring and piping materials;
a main body that is interposed between a wall of a building and the wide duct or the narrow duct laid along a wall surface of the wall to separate the wiring/piping material from the wall surface, the main body including a spacing member made of a material that transmits ultraviolet light;
The main body has an attachment portion to which the wide duct or the narrow duct is attached,
When the spacing member is viewed from a direction perpendicular to the wall surface, the spacing member is viewed from the front.
The shape of the spacing member in the front view is a rectangle whose long side is the width of the wide duct and whose short side is the width of the narrow duct,
Or a duct installation device characterized in that the duct is elliptical in shape with the width of the wide duct as the dimension of its major axis and the width of the narrow duct as the dimension of its minor axis.