JP7768541B2 - Piping support fittings - Google Patents

Description

The present invention relates to a pipe support fitting for supporting and holding pipes.

When installing piping or long objects such as electrical conduits (PF pipes, etc.) or cables on floors or walls, channel bases and piping support fittings have traditionally been used (see Non-Patent Document 1). A channel base is a long object with a roughly U-shaped cross section, with opposing lips formed on both end edges.

On the other hand, the pipe support bracket comprises two support plates of approximately the same shape. Specifically, the support plate is a roughly rectangular plate material with lip insertion sections formed on both side edges of one end for inserting the lip section of the channel base, and the other end is bent into an arc to form a flange section at its tip. This flange section is formed so that it is positioned approximately vertically above the pipe when the pipe is clamped between the two support plates as described below. Furthermore, the flange section of one support plate is formed with a bolt insertion hole for inserting a connecting bolt, and the flange section of the other support plate is formed with a threaded hole into which the connecting bolt screws.

The pipes are then placed on the opening side of the channel base so that they are approximately perpendicular to the channel base, and the two support plates of the pipe support bracket are placed on the channel base so that they sandwich the pipes. That is, one end of the support plate is inserted at an angle into the opening of the channel base, and the support plate is then positioned approximately perpendicular to the longitudinal direction of the channel base, allowing the lip portions of the channel base to be inserted into both lip insertion portions. Next, a connecting bolt is inserted into the bolt insertion hole of one support plate, and the connecting bolt is tightened into the screw hole of the other support plate. In this way, the two support plates are connected to the channel base, and the pipes are sandwiched and supported between them.

"Marui Electric Equipment Parts General Catalog 2020 No. 2" published by Marui Sangyo Co., Ltd., p. 212

However, if the two support plates of a piping support bracket are transported to the construction site separately, there is a risk of losing the support plates or connecting bolts. Therefore, the piping support bracket is transported to the construction site with the two support plates connected by connecting bolts. However, as mentioned above, when installing the piping support bracket in the channel base, the support plate must be tilted and one end inserted into the opening in the channel base, and the lip portion must be inserted into the lip insertion portion. If the two support plates remain connected, this cannot be done as the support plates will interfere with the piping or channel base.

This required removing the connecting bolts, separating the two support plates, placing each on the channel base, and then reconnecting the two support plates with the connecting bolts, which was time-consuming and labor-intensive. In particular, when installing a large number of pipe support fittings, this not only required a great deal of time and labor, but also placed a heavy burden on the workers.

The present invention aims to provide a pipe support bracket that can be installed on a channel base even when the two support plates remain connected by connecting bolts.

In order to achieve the above object, the invention described in claim 1 is a pipe support fitting for supporting pipes, including electrical conduits, in a state in which the pipes are placed on the opening side of an elongated channel base having a substantially U-shaped cross section and lip portions formed on both end edges facing each other, the pipe support fitting comprising a first support plate having a substantially rectangular plate material on both side edges at one end side thereof, first notched lip insertion portions for inserting the lip portion of the channel base, and the other end side bent into an arc shape and having a first flange portion protruding outward at the tip; and a second notched lip insertion portion on both side edges at one end side of the substantially rectangular plate material, for inserting the lip portion of the channel base, and the other end side bent into an arc shape and having a first flange portion protruding outward at the tip. a second support plate having a second flange portion formed thereon protruding toward the first support plate, and connecting bolts connecting the first support plate and the second support plate, wherein a avoidance portion for preventing interference between the second support plate and the piping is provided on at least one side edge of the second support plate from the second lip insertion portion toward the second flange portion so that the lip portion of the channel base can be inserted into the second lip insertion portion of the second support plate when the first support plate and the second support plate are connected by the connecting bolts and the lip portion of the channel base is inserted into the first lip insertion portion of the first support plate .

The invention described in claim 3 is characterized in that, in the piping support fitting described in claim 1 , the avoidance portion overlaps the second flange portion side of the second lip insertion portion and is formed in the shape of a notch that digs into the center of the second support plate more than the second lip insertion portion .

The invention described in claim 4 is characterized in that, in the piping support fitting described in claim 1 , the avoidance portion overlaps the second flange portion side of the second lip insertion portion and is formed in a notch shape that does not penetrate closer to the center of the second support plate than the second lip insertion portion .

The invention described in claim 5 is a pipe support fitting for supporting pipes, including electrical conduits, in a state in which the pipes are placed on the opening side of an elongated channel base having a generally U-shaped cross section and lip portions formed on both end edges facing each other, the pipe support fitting comprising a first support plate having a generally rectangular plate material on both side edges of one end side thereof, first notched lip insertion portions for inserting the lip portion of the channel base, and the other end side bent into an arc shape and having a first flange portion protruding outward at the tip; and a second notched lip insertion portion on both side edges of one end side of the generally rectangular plate material, for inserting the lip portion of the channel base, and a second flange portion protruding outward at the tip of the other end side. The present invention is characterized in that it comprises a second support plate and a connecting bolt connecting the first support plate and the second support plate, and an avoidance portion that prevents the second support plate from interfering with the piping is provided from the second lip insertion portion of at least one side edge of the second support plate to the second flange portion side so that the first support plate and the second support plate can be connected with the connecting bolt and the lip portion of the channel base can be inserted into the first lip insertion portion of the first support plate, and the avoidance portion is formed by bending a portion of the side edge of the second support plate toward the opposite side to the first support plate .

The invention described in claim 6 is characterized in that, in the piping support fitting described in claims 1 to 5, the connecting bolt is inserted into a bolt insertion hole formed in the first flange portion and screwed into a female thread portion provided in the second flange portion .

The invention described in claim 7 is characterized in that, in the piping support fitting described in claims 1 to 6 , the first flange portion and the second flange portion are formed so that when the lip portion is inserted into the first lip insertion portion of the first support plate and the second lip insertion portion of the second support plate, the surfaces of the first flange portion and the second flange portion are positioned at an angle with respect to a reference plane that is approximately perpendicular to the longitudinal direction of the channel base and extends approximately above the opening .

The invention of claim 8 is characterized in that, in the piping support fitting of claims 1 to 7 , the second support plate is composed of a substantially flat second flat plate portion formed by bending the substantially rectangular plate material to form the second lip insertion portion, and the substantially flat second flange portion . Furthermore, the invention of claim 9 is characterized in that, in the piping support fitting of claims 1 to 8, the leading edge of the second support plate on the second lip insertion portion side is formed into a substantially arc-shaped protrusion that protrudes outward so that the lip portion of the channel base can be inserted into the second lip insertion portion of the second support plate without interfering with the piping and the channel base . Furthermore, the invention of claim 10 is characterized in that, in the piping support fitting of claims 1 to 9, the avoidance portion is provided only on one side edge of the second support plate. The invention described in claim 11 is a method for supporting piping, including electrical conduits, in a state in which the piping is placed on an opening side of a long channel base having a generally U-shaped cross section and lip portions formed on both end edges facing each other, the method comprising: a first support plate having a generally rectangular plate material on both side edges of one end side thereof, first notched lip insertion portions for inserting the lip portion of the channel base, and the other end side being bent into an arc and having a first flange portion protruding outward at its tip; and a second support plate having a generally rectangular plate material on both side edges of one end side thereof, second notched lip insertion portions for inserting the lip portion of the channel base, and having a second flange portion protruding outward at its tip at the other end side. The present invention is characterized in that a pipe support fitting is used that includes a connecting bolt that connects the first support plate and the second support plate, and an avoidance portion that prevents the second support plate from interfering with the pipes is provided in the form of a notch from the second lip insertion portion of at least one side edge of the second support plate toward the second flange portion, and the first support plate and the second support plate are connected with the connecting bolt, and with the lip portion of the channel base inserted into the first lip insertion portion of the first support plate, the lip portion of the channel base is inserted into the second lip insertion portion of the second support plate while preventing the second support plate from interfering with the pipes via the avoidance portion, thereby supporting the pipes on the channel base.

According to the inventions of claims 1, 5 , and 11 , because an avoiding portion that avoids interference with piping is provided on the side edge portion of the second support plate, it becomes possible to arrange the piping support bracket on the channel base even when the two support plates remain connected with the connecting bolts. That is, by connecting the two support plates with the connecting bolts and inserting the lip portion of the channel base into the first lip insertion portion of the first support plate, and then inserting the lip portion of the channel base into the second lip insertion portion of the second support plate while avoiding interference with the piping using the avoiding portion, it becomes possible to arrange the piping support bracket on the channel base even when the two support plates remain connected with the connecting bolts.

This eliminates the need to remove the connecting bolts and separate the two support plates, as was previously the case, reducing the effort and time required to install pipe support fittings. In particular, when installing a large number of pipe support fittings, not only can this significantly reduce the effort and time required, but it also significantly reduces the burden on workers. Furthermore, because there is no need to separate the two support plates, there is no risk of losing the support plates or connecting bolts.

According to the seventh aspect of the present invention, the first and second flanges are formed so that their surfaces are positioned obliquely relative to a reference plane that is substantially perpendicular to the longitudinal direction of the channel base and extends substantially above the opening. In other words, the connecting bolts are disposed so as to extend obliquely relative to the channel base, and the second support plate is positioned on the channel base side (the lower side of the piping), making it easier to insert the lip of the channel base into the second lip insertion portion of the second support plate. As a result, the piping support fitting can be easily and quickly installed on the channel base.

Furthermore, because the connecting bolts extend diagonally relative to the channel base, even when multiple pipes are closely spaced on the channel base (when the distance between adjacent pipe support fittings is short), the connecting bolts can be tightened using an electric screwdriver or similar. In other words, it is possible to arrange multiple pipes with narrow spacing between them.

According to the invention described in claim 8 , the second support plate is composed only of a second flat plate portion having an approximately flat plate shape and a second flange portion, so that the configuration is simple and it is possible to reduce manufacturing costs, including mold costs.

According to the ninth aspect of the present invention, the leading edge of the second support plate on the second lip insertion portion side is formed in a generally arcuate shape, which prevents the second support plate from interfering with the piping or the channel base and makes it easier to insert the lip portion of the channel base into the second lip insertion portion of the second support plate. As a result, the piping support fitting can be easily and quickly installed on the channel base.

According to the invention of claim 2 , the avoidance portion is formed in the shape of a notch spanning the second flange portion. In other words, since the avoidance portion is formed on the opposite side of the second lip insertion portion, it is possible to insert the lip portion into the second lip insertion portion by pushing the avoidance portion toward the piping, thereby avoiding interference with the channel base, etc.

According to the invention of claim 3 , the avoidance portion is formed in the shape of a notch that overlaps the second flange portion side of the second lip insertion portion and bites into the second support plate closer to the center than the second lip insertion portion. Therefore, by inserting the lip portion up to the avoidance portion and avoiding interference with the channel base, etc., it is possible to insert the lip portion into the second lip insertion portion.

According to the fifth aspect of the present invention, a part of the side edge of the second support plate is bent to form the avoidance portion. In other words, since the avoidance portion is formed by bending rather than by cutting out, it is possible to increase the strength and rigidity of the second support plate.

1A and 1B are a first perspective view and a second perspective view showing a pipe support fitting according to a first embodiment of the present invention; FIG. 2 is a perspective view showing a state in which an electric conduit is supported by the pipe support fitting of FIG. 1 . 2A is a front view showing the first support plate of the piping support fitting of FIG. 1; FIG. 2B is an exploded view; FIG. 2C is an X-X cross-sectional view of FIG. 1; FIG. 2D is a Y-Y cross-sectional view of FIG. 1; FIG. 2E is a view from the A direction of FIG. 1; and FIG. 2F is a Z-Z cross-sectional view of FIG. 1; 2A is a front view showing the second support plate of the piping support fitting of FIG. 1; FIG. 2B is a developed view; FIG. 2C is an X-X cross-sectional view of FIG. 2A; FIG. 2D is a Y-Y cross-sectional view of FIG. 2A; FIG. 2E is a view from the A direction of FIG. 2D; and FIG. 2F is a Z-Z cross-sectional view of FIG. 2E. FIG. 2 is a perspective view showing the process of supporting an electric conduit with the piping support fitting of FIG. 1, showing the state in which the lip portion of the channel base is inserted into the first lip insertion portion of the first support plate. 6 is a perspective view showing a state before the lip portion of the channel base is inserted into the second lip insertion portion of the second support plate, following FIG. 5 . FIG. 7 is a perspective view showing a state in which interference with the electrical conduit is avoided by the avoidance portion of the second support plate, following FIG. 6; FIG. 8 is a perspective view showing a state in which the lip portion of the channel base is inserted into the second lip insertion portion of the second support plate, following FIG. 7 . FIG. 9 is a perspective view showing a state in which the connecting bolts are tightened, following FIG. 8 . 10 is a perspective view showing a state in which a connecting bolt is being tightened with an electric screwdriver when a plurality of electric conduits arranged on a channel base are supported by a pipe support bracket. FIG. FIG. 10 is a front view showing another example of the shape of the second support plate of the pipe support fitting according to the first embodiment of the present invention. 10A is a front view showing a first shape example of the second support plate of the pipe support fitting according to embodiment 2 of the present invention, and FIG. 10B is a front view showing a second shape example. FIG. 10A is a front view showing the second support plate of a pipe support fitting according to embodiment 3 of the present invention, and FIG. 10B is a front view showing the second support plate when no avoidance portion is formed. 10A is a front view showing a second support plate of a pipe support fitting according to a fourth embodiment of the present invention, and FIG. 10B is a YY cross-sectional view of FIG.

The present invention will be described below based on the illustrated embodiment.

(Embodiment 1)
Fig. 1 is a first perspective view (a) and a second perspective view (b) showing a piping support fitting 1 according to this embodiment, and Fig. 2 is a perspective view showing a state in which an electric conduit L is supported by the piping support fitting 1. This piping support fitting 1 is a fitting for supporting and holding piping arranged on a channel base C, and in this embodiment, the case in which the piping is an electric conduit L will be mainly described, but the piping may also be a cable, piping, pipe, etc.

Here, the channel base C is a long body with a roughly U-shaped cross section, with opposing lip portions C3 formed on both end edges. Specifically, channel side portions C2 extend roughly perpendicularly from both side edges of the band-shaped channel bottom portion C1, and opposing short-side lip portions C3 extend roughly parallel to the channel bottom portion C1 from the edge of each channel side portion C2 opposite the channel bottom portion C1. The piping support bracket 1 supports the electrical conduit L placed on the opening side of this channel base C, i.e., on the lip portion C3 side.

The pipe support bracket 1 comprises a first support plate 2 and a second support plate 3, which are asymmetrical and have different shapes, and a connecting bolt 4 that connects them.

The first support plate 2 is a generally rectangular plate member having first lip insertion portions 21a formed on both side edges of one end thereof, and the other end bent into an arc to form a first flange portion 23 that protrudes outward from the tip. Specifically, as shown in FIG. 3, from one end, it comprises, in order, a generally flat first flat portion 21, an arc portion 22 connected to the first flat portion 21 and bent into a generally arc, and a generally flat first flange portion 23 connected to the arc portion 22 and protruding outward. The thickness and width of the first support plate 2 are set to provide the required strength to firmly support and hold the electrical conduit L.

The leading edge 21b on one end side (the side opposite the arc portion 22) of the first flat plate portion 21 extends approximately perpendicular to the longitudinal direction of the first flat plate portion 21, and the corners on both sides extend diagonally toward the arc portion 22, making it easier to insert the lip portion C3 of the channel base C. Furthermore, first lip insertion portions 21a for inserting the lip portion C3 are formed on both side edges on one end side of the first flat plate portion 21, and the area between the first lip insertion portions 21a and the leading edge 21b forms a locking portion 21c that locks with the lip portion C3.

The first lip insertion portion 21a is a roughly U-shaped notch that bites into the widthwise center of the first flat plate portion 21, with the opening edge (bottom of the U) on the tip edge 21b side extending gently diagonally toward the arc portion 22 and outward, allowing the locking portion 21c to firmly lock onto the lip portion C3. Meanwhile, the opening edge (top of the U) on the arc portion 22 side extends at a large diagonal angle (45° in this embodiment) toward the arc portion 22, making it easier to insert the lip portion C3.

In this embodiment, both side edges of the first support plate 2, excluding the locking portion 21c, are bent outward to form bent portions 2a, which prevent damage to piping such as cables when supporting the piping. Furthermore, a reinforcing portion 21d is formed in the center between the first lip insertion portions 21a, protruding outward to increase strength.

The arc portion 22 is formed so that its inner surface is in contact with the outer peripheral surface of the conduit L, and its arc length is set so that the surface of the first flange portion 23 is positioned at an angle with respect to the reference plane S. In other words, the reference plane S is a plane that is approximately perpendicular to the longitudinal direction of the channel base C and extends approximately above the opening (lip portion C3). As described below, when the lip portion C3 is inserted into the first lip insertion portion 21a and the first flat plate portion 21 extends approximately perpendicular to the channel base C, the arc length of the arc portion 22 is set so that the surface of the first flange portion 23 is positioned at approximately 60° with respect to the reference plane S (first flat plate portion 21) in this embodiment, thereby forming the first flange portion 23.

Here, the surface of the first flange portion 23 is set at approximately 60° because the inventors confirmed that setting it at approximately 60° makes it easiest to insert the lip portion C3 into the second lip insertion portion 31a, which will be described later. The same applies to the second flange portion 32, which will be described later.

A bolt insertion hole 23a for inserting the connecting bolt 4 is formed in the center of the first flange portion 23. This bolt insertion hole 23a is formed cylindrically by burring, and its inner diameter is set larger than the standard hole diameter specified by the Japanese Industrial Standards for the nominal diameter of the connecting bolt 4. For example, if the nominal diameter of the connecting bolt 4 is 6 mm, the Japanese Industrial Standards specify bolt hole diameters as 6.4 mm for Class 1, 6.6 mm for Class 2, and 7 mm for Class 3, but the inner diameter of the bolt insertion hole 23a is set to 8 mm. By making the bolt insertion hole 23a larger than the standard bolt hole diameter, the movable range of the connecting bolt 4, i.e., the second support plate 3, is increased, making it easier to insert the lip portion C3 into the second lip insertion portion 31a, described below.

The second support plate 3 is a generally rectangular plate member having second lip insertion portions 31a formed on both side edges of one end thereof and a second flange portion 32 protruding outward from the tip of the other end thereof. Specifically, as shown in FIG. 4, the generally rectangular plate member is bent to include, from one end thereof, a generally flat second flat portion 31 and a generally flat second flange portion 32 connected to this second flat portion 31. The thickness and width of the second support plate 3 are set so that it has the required strength to firmly support and hold the electrical conduit L, even when the avoidance portion 3b (described below) is formed.

The leading edge 31b on one end side of the second flat plate portion 31 (opposite the second flange portion 32 side) has the same shape as the leading edge 21b of the first flat plate portion 21 described above. Furthermore, notched second lip insertion portions 31a for inserting the lip portion C3 of the channel base C are formed on both side edges on the one end side of the second flat plate portion 31, and the area between the second lip insertion portions 31a and the leading edge 31b forms a locking portion 31c that locks with the lip portion C3. This second lip insertion portion 31a has the same shape as the first lip insertion portion 21a described above.

In this embodiment, similar to the first support plate 2, both side edges of the second support plate 3, excluding the locking portion 31c, are bent outward to form bent portions 3a. Furthermore, a reinforcing portion 31d that protrudes outward and increases strength is formed in the center between the second lip insertion portions 31a.

The second flange portion 32 is formed so that its surface is positioned at an angle relative to the reference plane S. That is, as described below, when the lip portion C3 is inserted into the second lip insertion portion 31a and the second flat plate portion 31 extends approximately perpendicular to the channel base C, the second flange portion 32 is formed so that the surface of the second flange portion 32 is positioned at approximately 60° relative to the reference plane S (second flat plate portion 31) in this embodiment.

A threaded hole (female threaded portion) 32a into which the connecting bolt 4 screws is formed in the center of the second flange portion 32. This threaded hole 32a is formed into a cylindrical shape by burring, and a female thread is formed on its inner circumferential surface. In this embodiment, the threaded hole 32a is formed as the female threaded portion, but a bolt insertion hole may also be formed in the second flange portion 32 and a nut may be provided as the female threaded portion.

Furthermore, a clearance portion 3b is provided on one side edge of the second support plate 3, from the second lip insertion portion 31a toward the second flange portion 32. This clearance portion 3b is shaped to prevent the second support plate 3 from interfering with the conduit L and channel base C, so that the lip portion C3 of the channel base C can be inserted into the second lip insertion portion 31a of the second support plate 3 when the first support plate 2 and second support plate 3 are connected by the connecting bolt 4 and the lip portion C3 of the channel base C is inserted into the first lip insertion portion 21a of the first support plate 2.

In this embodiment, the avoidance portion 3b is formed as a notch spanning the second flange portion 32 from the second lip insertion portion 31a to the second flange portion 32. That is, the second flange portion 32 side of the second lip insertion portion 31a is cut out, and a portion of the second flange portion 32 (leaving the free end side) is cut out. Furthermore, the avoidance portion 3b is formed so as not to dig into the center of the width of the second support plate 3 beyond the second lip insertion portion 31a. Then, as described below, the lip portion C3 can be inserted into the second lip insertion portion 31a by pushing or pressing the avoidance portion 3b against the conduit L. In other words, the avoidance portion 3b is formed to allow such insertion.

The connecting bolt 4 is inserted into the bolt insertion hole 23a and threaded into the threaded hole 32a to connect the first support plate 2 and the second support plate 3. Its length is set longer than standard. For example, assuming that it is normal for the bolt's threads to protrude approximately three to five times from the nut after tightening, the connecting bolt 4 is set so that when tightened into the threaded hole 32a as described below, more than twice the standard number of threads protrudes from the threaded hole 32a. In this way, making the connecting bolt 4 longer than standard increases the range of movement of the second support plate 3, making it easier to insert the lip portion C3 into the second lip insertion portion 31a. In other words, the connecting bolt 4 is set longer than standard to make it easier to insert the lip portion C3 into the second lip insertion portion 31a.

Next, we will explain how to support and hold the electrical conduit L using the pipe support bracket 1 configured as described above. As a premise, the first support plate 2 and the second support plate 3 are connected by a connecting bolt 4, and the second support plate 3 is positioned on the free end side of the connecting bolt 4.

First, as shown in Figure 5, with the conduit L positioned on the lip portion C3 side of the channel base C so that it is approximately perpendicular to the channel base C, insert both lip portions C3 into the first lip insertion portion 21a of the first support plate 2, and align the arc portion 22 with the outer peripheral surface of the conduit L. Next, as shown in Figure 6, hold and move the second support plate 3 so that the lip portion C3 is inserted into the second lip insertion portion 31a of the second support plate 3.

At this time, as shown in Figure 7, the avoiding portion 3b is pushed (pressed) into the electrical conduit L, and the locking portion 31c on the avoiding portion 3b side is rotated under the lip portion C3 and locked onto the lip portion C3. Next, the other locking portion 31c is also rotated under the lip portion C3 and locked onto the lip portion C3. As shown in Figure 8, the piping support bracket 1 is temporarily fastened to the channel base C so that the electrical conduit L is sandwiched between the first support plate 2 and the second support plate 3.

Then, as shown in Figure 9, the connecting bolts 4 are tightened to secure the piping support bracket 1 and the electrical conduit L to the channel base C. In this configuration, the first flat plate portion 21 and the second flat plate portion 31 extend approximately perpendicular to the channel base C, and the surfaces of the first flange portion 23 and the second flange portion 32 are positioned at approximately 60° with respect to the reference plane S.

As described above, with this piping support bracket 1, the avoidance portion 3b that avoids interference with the electrical conduit L and channel base C is provided on the side edge of the second support plate 3, making it possible to arrange the piping support bracket 1 on the channel base C even when the two support plates 2, 3 remain connected with the connecting bolt 4. In other words, by connecting the two support plates 2, 3 with the connecting bolt 4 and inserting the lip portion C3 into the first lip insertion portion 21a of the first support plate 2, and then inserting the lip portion C3 into the second lip insertion portion 31a of the second support plate 3 while avoiding interference with the electrical conduit L and channel base C with the avoidance portion 3b, it becomes possible to arrange the piping support bracket 1 on the channel base C even when the two support plates 2, 3 remain connected.

In particular, in this embodiment, the avoidance portion 3b is formed as a notch spanning the second flange portion 32. In other words, because the avoidance portion 3b is formed on the opposite side of the second lip insertion portion 31a, it is possible to insert the lip portion C3 into the second lip insertion portion 31a by pushing the avoidance portion 3b toward the conduit L to avoid interference with the channel base C, etc.

This eliminates the need to remove the connecting bolts 4 and separate the two support plates 2, 3 as was previously necessary, reducing the effort and time required to install the pipe support fitting 1. In particular, when installing multiple pipe support fittings 1, not only can this significantly reduce the effort and time required, but it also significantly reduces the burden on the worker. Furthermore, because there is no need to separate the two support plates 2, 3, there is no risk of losing the support plates 2, 3 or the connecting bolts 4.

Furthermore, the first flange portion 23 and the second flange portion 32 are formed so that their surfaces are positioned at approximately 60° with respect to a reference plane S that is approximately perpendicular to the longitudinal direction of the channel base C and extends approximately above the opening. In other words, because the connecting bolt 4 is positioned so that it extends obliquely relative to the channel base C and the second support plate 3 is positioned on the channel base C side (the lower side of the electrical conduit L), it is easy to insert the lip portion C3 into the second lip insertion portion 31a. As a result, the piping support fitting 1 can be easily and quickly installed on the channel base C.

Furthermore, because the connecting bolts 4 extend diagonally relative to the channel base C, as shown in Figure 10, it is possible to tighten the connecting bolts 4 using an electric screwdriver D or the like, even when multiple electrical conduits L are closely spaced on the channel base C (when the distance between adjacent pipe support fittings 1 is short). In other words, if the connecting bolts 4 extend parallel to the channel base C as in the past, adjacent pipe support fittings 1 would get in the way, making it difficult to tighten the connecting bolts 4 with an electric screwdriver. In contrast, because the connecting bolts 4 extend diagonally, adjacent pipe support fittings 1 do not get in the way, making it possible to properly tighten the connecting bolts 4. In other words, it is possible to install multiple electrical conduits L with a narrower spacing between adjacent fittings.

Furthermore, because the second support plate 3 is composed only of a substantially flat second flat plate portion 31 and a second flange portion 32, the structure is simple, making it possible to reduce manufacturing costs, including mold costs.

The shapes of the support plates 2, 3, etc. are not limited to those described above, and may be any appropriate shape depending on the size of the conduit L, the shape of the channel base C, etc. For example, as shown in Figure 11, the second flat plate portion 31 of the second support plate 3 may be made relatively long, and an avoidance portion 3b may be provided on the second flange portion 32 side so that it does not overlap the second lip insertion portion 31a.

(Embodiment 2)
12(a) is a front view showing a first example of the shape of the second support plate 3 of the pipe support fitting according to this embodiment. This embodiment differs from the first embodiment in that the leading edge 31b of the second support plate 3 on the second lip insertion portion 31a side is formed in a generally arcuate shape that protrudes outward. Components equivalent to those in the first embodiment are designated by the same reference numerals and will not be described again.

In other words, the leading edge 31b is formed as a single arc that protrudes outward over its entire length and is approximately symmetrical. The radius of curvature R of the arc is set so that the lip portion C3 can be inserted into the second lip insertion portion 31a or so that it is easy to insert the lip portion C3 without the second support plate 3 interfering with the electrical conduit L and channel base C.

As such, because the leading edge 31b is formed in an arc shape, the second support plate 3 does not interfere with the electrical conduit L or channel base C, making it easier to insert the lip portion C3 into the second lip insertion portion 31a. As a result, the piping support fitting can be easily and quickly installed in the channel base C.

Incidentally, as in the second shape example shown in Figure 12(b), the reversible portions 3a do not have to be formed on both side edges of the second support plate 3, and this also applies to the above-mentioned embodiment 1 and the following embodiments 3 and 4.

(Embodiment 3)
13(a) is a front view showing the second support plate 3 of the pipe support fitting according to this embodiment. In this embodiment, the position and shape of the avoidance portion 3b differ from those of the first embodiment, and the same components as those of the first embodiment are designated by the same reference numerals and will not be described again.

In this embodiment, the avoidance portion 3b overlaps the second flange portion 32 side of the second lip insertion portion 31a and is formed as a notch that bites into the center of the second support plate 3 more closely than the second lip insertion portion 31a. In other words, as shown in Figure 13(b), in a second support plate where the avoidance portion 3b is not formed, the second flange portion 32 side of the second lip insertion portion 31a (the anti-locking portion 31c side) is cut out and is formed so as to bite into the width center side of the second flat plate portion 31 more closely than the second lip insertion portion 31a (the reinforcing portion 31d side).

This allows the lip portion C3 to be inserted into the second lip insertion portion 31a by pushing it up to one of the avoidance portions 3b and inserting both locking portions 31c under the lip portion C3 to lock it in place. In other words, the position and shape of the avoidance portion 3b are designed to allow this type of insertion. By inserting the lip portion C3 up to the avoidance portion 3b in this way and avoiding interference with the channel base C, the lip portion C3 can be inserted into the second lip insertion portion 31a. Furthermore, because the locking portion 31c side of the second lip insertion portion 31a remains, the second support plate 3 can be positioned securely on the channel base C with the locking portions 31c locked to the lip portion C3.

In this embodiment, since avoidance sections 3b are provided on both side edges of the second support plate 3, the lip portion C3 can be inserted into the second lip insertion section 31a from either side. However, as mentioned above, the thickness and width of the second support plate 3 (and the strength of the material, if necessary) must be set so that a predetermined strength is obtained. In this way, the fact that avoidance sections 3b may be provided on both side edges of the second support plate 3 is the same in the above-mentioned embodiments 1 and 2, as well as in the embodiment 4 described below.

(Fourth embodiment)
14A is a front view showing the second support plate 3 of the pipe support fitting according to this embodiment, and FIG. 14B is a Y-Y cross-sectional view of FIG. 14A. In this embodiment, the shape of the avoidance portion 3b differs from that of the first embodiment, and the same components as those of the first embodiment are designated by the same reference numerals and will not be described again.

In this embodiment, the avoidance portion 3b is formed by bending a portion of the side edge of the second support plate 3 toward the opposite side of the first support plate 2. That is, the second flange portion 32 side of the second lip insertion portion 31a and the bent portion 31e, which is part of the second flange portion 32, are bent toward the opposite side of the first support plate 2 (opposite the conduit L), forming the avoidance portion 3b that spans from the second lip insertion portion 31a to the second flange portion 32.

In this way, the avoidance portion 3b is not a notch, but is formed by bending a portion of the side edge of the second support plate 3, which makes it possible to increase the strength and rigidity of the second support plate 3.

The above describes an embodiment of the present invention, but the specific configuration is not limited to the above embodiment, and design changes that do not deviate from the gist of the present invention are also included in the present invention. For example, in the above embodiment, the surfaces of the first flange portion 23 and the second flange portion 32 are positioned at approximately 60° with respect to the reference plane S, but they may be positioned at any angle depending on the size of the piping and the shape of the support plates 2 and 3. The inventors have confirmed that when the outer diameter of the piping is large, an angle in the range of 45° to 90° is desirable.

Furthermore, the shape of the locking portions 21c, 31c is not limited to the above shapes, and may be, for example, arc-shaped or chamfered, and may also be shortened in length. In addition, in embodiment 2, the entire tip edge 31b of the second support plate 3 is formed in an arc shape, but other shapes are also possible, such as being formed into a roughly arc shape by chamfering. Furthermore, a reversing portion 3a may be provided in the avoidance portion 3b.

REFERENCE SIGNS LIST 1 Pipe support fitting 2 First support plate 21 First flat plate portion 21a First lip insertion portion 21c Locking portion 22 Arc portion 23 First flange portion 23a Bolt insertion hole 3 Second support plate 3b Avoidance portion 31 Second flat plate portion 31a Second lip insertion portion 31b Leading edge 31c Locking portion 32 Second flange portion 32a Screw hole (female thread portion)
4 Connecting bolt C Channel base C3 Lip L Conduit (piping)
S Reference plane

Claims (11)

A pipe support fitting for supporting pipes including electrical conduits in a state where the pipes are arranged on an opening side of an elongated channel base having a substantially U-shaped cross section and lip portions facing each other formed on both end edges,
a first support plate having a substantially rectangular plate material on both side edges of one end thereof, notched first lip insertion portions for inserting the lip portions of the channel base, and the other end thereof bent into an arc shape, and having a first flange portion formed at the tip thereof and protruding outward;
a second support plate having a substantially rectangular plate material on both side edges of one end thereof, notched second lip insertion portions for inserting the lip portions of the channel base, and a second flange portion protruding outward from the tip of the other end thereof;
a connecting bolt that connects the first support plate and the second support plate;
an avoidance portion for preventing interference between the second support plate and the piping is provided on at least one side edge of the second support plate from the second lip insertion portion toward the second flange portion so that the first support plate and the second support plate can be connected by the connecting bolt and the lip portion of the channel base can be inserted into the second lip insertion portion of the second support plate with the lip portion of the channel base inserted into the first lip insertion portion of the first support plate ;
The avoidance portion is formed in a notch shape.
A pipe support fitting characterized by: The avoidance portion is formed in a notch shape spanning the second flange portion.
2. The pipe support fitting according to claim 1 . The avoidance portion overlaps the second flange portion side of the second lip insertion portion and is formed in a notch shape that bites into the second support plate closer to the center than the second lip insertion portion.
2. The pipe support fitting according to claim 1 . The avoidance portion overlaps the second flange portion side of the second lip insertion portion and is formed in a notch shape so as not to bite into a center side of the second support plate relative to the second lip insertion portion.
2. The pipe support fitting according to claim 1. A pipe support fitting for supporting pipes including electrical conduits in a state where the pipes are arranged on an opening side of an elongated channel base having a substantially U-shaped cross section and lip portions facing each other formed on both end edges,
a first support plate having a substantially rectangular plate material on both side edges of one end thereof, notched first lip insertion portions for inserting the lip portions of the channel base, and the other end thereof bent into an arc shape, and having a first flange portion formed at the tip thereof and protruding outward;
a second support plate having a substantially rectangular plate material on both side edges of one end thereof, notched second lip insertion portions for inserting the lip portions of the channel base, and a second flange portion protruding outward from the tip of the other end thereof;
a connecting bolt that connects the first support plate and the second support plate;
an avoidance portion for preventing interference between the second support plate and the piping is provided on at least one side edge of the second support plate from the second lip insertion portion toward the second flange portion so that the first support plate and the second support plate can be connected by the connecting bolt and the lip portion of the channel base can be inserted into the second lip insertion portion of the second support plate with the lip portion of the channel base inserted into the first lip insertion portion of the first support plate;
The avoidance portion is formed by bending a part of a side edge portion of the second support plate toward the side opposite to the first support plate.
A pipe support fitting characterized by: The connecting bolt is inserted into a bolt insertion hole formed in the first flange portion and is screwed into a female thread portion provided in the second flange portion.
The pipe support fixture according to any one of claims 1 to 5 . the first flange portion and the second flange portion are formed so that, in a state in which the lip portion is inserted into the first lip insertion portion of the first support plate and the second lip insertion portion of the second support plate, the surfaces of the first flange portion and the second flange portion are positioned obliquely with respect to a reference plane that is substantially perpendicular to the longitudinal direction of the channel base and extends substantially above the opening;
The pipe support fixture according to any one of claims 1 to 6 . The second support plate is formed by bending the substantially rectangular plate material to form a substantially flat second flat plate portion in which the second lip insertion portion is formed, and the second flange portion is also substantially flat.
The pipe support fixture according to any one of claims 1 to 7 . a tip edge of the second support plate on the second lip insertion portion side formed in a substantially arc shape protruding outward so that the lip portion of the channel base can be inserted into the second lip insertion portion of the second support plate without interfering with the piping and the channel base;
The pipe support fixture according to any one of claims 1 to 8 . The avoidance portion is provided only on one side edge portion of the second support plate.
The pipe support fixture according to any one of claims 1 to 9. A method for supporting piping, including electrical conduits, in a state where the piping is placed on an opening side of an elongated channel base having a substantially U-shaped cross section and lip portions facing each other formed at both end edges, the method comprising:
a first support plate having a substantially rectangular plate material on both side edges of one end thereof, notched first lip insertion portions for inserting the lip portions of the channel base, and the other end thereof bent into an arc shape, and having a first flange portion formed at the tip thereof and protruding outward;
a second support plate having a substantially rectangular plate material on both side edges of one end thereof, notched second lip insertion portions for inserting the lip portions of the channel base, and a second flange portion protruding outward from the tip of the other end thereof;
a connecting bolt that connects the first support plate and the second support plate;
Using a pipe support bracket equipped with
an avoidance portion for avoiding interference between the second support plate and the piping is provided in the form of a notch from the second lip insertion portion to the second flange portion side of at least one side edge portion of the second support plate,
the first support plate and the second support plate are connected by the connecting bolt, and in a state in which the lip portion of the channel base is inserted into the first lip insertion portion of the first support plate, the lip portion of the channel base is inserted into the second lip insertion portion of the second support plate while avoiding interference between the second support plate and the piping via the avoidance portion , thereby supporting the piping on the channel base.
A method for supporting piping.