JP2021046872A - Piping and wiring protective cover - Google Patents

Abstract

To provide a piping and wiring protective cover having a small number of components and capable of attaining various kinds of bent states.SOLUTION: A piping and wiring protective cover comprises a tubular first member 2 having an axial core that draws an arc at a constant curvature, and a tubular second member 3 that has an axial core that draws an arc at the same curvature as the first member 2, a part of which is provided on the outside of the first member 2, and that is connected to one end of the first member 2. The second member 3 can move outward of the first member 2 along the axial core that draws the arc, and can move in a circumferential direction of the first member, with respect to the first member 2.SELECTED DRAWING: Figure 1

Description

The present invention mainly relates to a pipe / wiring protection cover for covering a bent portion of a pipe or wiring installed outdoors.

Patent Document 1 is an example of a pipe / wiring protection cover for covering a bent portion of a pipe or wiring. The cover described in Patent Document 1 is intended for common use of parts, and is configured by engaging four or more even-numbered units having the same shape.

By the way, for example, in order to avoid obstacles existing on the wall surface of the building and to change the distance to float the cover from the wall surface of the building on the way, the axis of the cover is offset, that is, diagonally between two parallel linear axes. Sometimes you want to place the cover so that it connects to.

However, in this case, the cover described in Patent Document 1 requires four units on each of one side and the other side of the linear axis to be offset. Moreover, as shown in FIG. 1 or FIG. 2 of Patent Document 1, a straight tubular cover for connecting a set of a plurality of units is further required.

As described above, in the configuration described in Patent Document 1, since the number of constituent points is increased, there is a problem that the man-hours at the installation site of the cover are increased accordingly. Further, in the configuration described in Patent Document 1, since the emphasis is placed on standardizing the parts, the bending angle of the cover is fixed, and there are few variations of the bending state that can be realized. Further, when the bending angle of the cover is fixed, it is difficult to shorten the distance between two parallel linear axes related to the offset.

Japanese Patent No. 6529893 (Figs. 1 and 2)

Therefore, it is an object of the present invention to provide a piping / wiring protective cover capable of realizing various bending states with a small number of constituent points.

The present invention has a tubular first member having an axial center for drawing an arc having a constant curvature, and an axial center for drawing an arc having the same curvature as the first member, and a part thereof is provided outside the first member. The second member includes a second member which is tubular and is connected to one end of the first member, and the second member has the first member along the axis of drawing the arc with respect to the first member. It is a piping / wiring protection cover that can move the outside of one member and can move in the circumferential direction of the first member.

According to this configuration, since the second member can move with respect to the first member along the axis of scooping an arc having a constant curvature, the degree of covering of the second member with the first member can be adjusted. Therefore, the bent shape can be formed according to the covering condition. Since the second member can move with respect to the first member in the circumferential direction of the first member, the degree of twisting in the circumferential direction can be adjusted. Therefore, the opening direction can be set at one end and the other end of the piping / wiring protection cover at an angle according to the degree of twist.

Further, by moving the second member with respect to the first member along the axis of the arc, the entire angle can be changed steplessly.

According to this configuration, any bending angle other than a fixed angle such as 90 degrees or 45 degrees can be set.

Further, the cross-sectional shapes of the first member and the second member perpendicular to the axis may be circular at least at each end where the two members are connected.

According to this configuration, when the second member is moved with respect to the first member in the circumferential direction of the first member, the second member does not need to be removed from the first member once, but only needs to be rotated. Therefore, the labor at the construction site can be reduced.

Further, it can be assumed that a collar portion is formed at one end of the first member and the second member, and an inward protrusion that contacts the collar portion is formed at the other end.

According to this configuration, it is possible to prevent the second member from being unexpectedly separated from the first member due to the contact between the flange portion and the inward protrusion, which is convenient at the construction site.

In the present invention, the bent shape can be formed according to the degree of covering of the second member with the first member. Then, the opening direction can be set at one end and the other end of the piping / wiring protection cover at an angle according to the degree of twist in the circumferential direction. Therefore, it is possible to realize various bending states with a small number of constituent points (first member and second member).

It is a perspective view which shows the piping / wiring protection cover which concerns on one Embodiment of this invention. The piping / wiring protection cover is shown, (a) is a front view, and (b) is a rear view. The piping / wiring protection cover is shown, (a) is a plan view, and (b) is a bottom view. The piping / wiring protection cover is shown, (a) is a right side view, and (b) is a left side view. The piping / wiring protection cover is shown, (a) is an enlarged end view of V (a) -V (a) in FIG. 2 (a), and (b) is an enlarged end view of V (b) -V (b). Is. FIG. 3 is an enlarged sectional view taken along line VI-VI in FIG. 3A showing the piping / wiring protection cover. FIG. 5 is a perspective view showing a state in which the second member is rotated 180 degrees in the circumferential direction from the state shown in FIG. 1 for the piping / wiring protection cover. It is a front view which shows the state which moved the 2nd member in the axial direction from the state shown in FIG. 2 and retracted to the maximum with respect to the pipe / wiring protection cover. It is a front view which shows the state which moved the 2nd member in the axial direction from the state shown in FIG. 2 and slightly contracted the pipe / wiring protection cover. (A) to (c) are perspective views which show the example which applied to the part bent at 90 degrees as an example of the form of construction in the order of construction. It is a front view which shows the piping / wiring protection cover which concerns on other embodiment. It is a front view which shows the piping / wiring protection cover which concerns on other embodiment. It is a front view which shows the piping / wiring protection cover which concerns on other embodiment.

Next, the present invention will be described by taking up one embodiment. In the following, for ease of understanding, the first member 2 will be described as a fixed-side member, and the second member 3 will be described as a moving-side member. Further, the explanation of the direction is based on the illustrated direction.

The piping / wiring protection cover (hereinafter, bent portion cover) 1 of the present embodiment is, for example, a bent portion of the refrigerant pipe P (see FIG. 10A) or electrical wiring installed outdoors along the wall surface of the building. Is used to cover by storing it in the internal space to protect it from the external environment such as wind and rain. The bent portion cover 1 is composed of a first member 2 and a second member 3 made of a hard resin (hard vinyl chloride resin or the like) as a set.

The first member 2 is a tubular member which is a lower portion of the one shown in FIG. 1 and has an axial center 2R (shown by a chain line in FIG. 6) for scooping an arc having a constant curvature. The first member 2 has a curved pipe portion 21 along the axial center 2R for scooping the arc, and a straight pipe portion 22 along the linear axial center. The outer diameter dimension and the inner diameter dimension of the straight pipe portion 22 are larger than those of the curved pipe portion 21. Therefore, a stepped portion 23 that appears in the appearance is formed at the boundary between the curved pipe portion 21 and the straight pipe portion 22. As shown in FIG. 8, the second member 3 comes into contact with the step portion 23. At the time of this contact, the outer diameter dimension of the straight pipe portion 22 of the first member 2 (the dimension in the direction orthogonal to the axis, the following outer diameter dimension and inner diameter dimension are the same) so that there is no discomfort in appearance. The outer diameter dimension of the curved pipe portion 31 of the second member 3 is the same. The bending angle of the curved pipe portion 21 is 45 degrees. The length of the straight pipe portion 22 in the axial direction (or the ratio of the length to the entire first member 2) is not limited to that shown in the figure. Further, the portion corresponding to the straight pipe portion 22 of the present embodiment may have a different shape other than the straight tubular portion.

In the first member 2, both ends of the connection end portion 211 and the open end portion 221 are open. The second member 3 is connected to the connection end portion 211 which is one end of the first member 2. The connection end portion 211 is located at the curved pipe portion 21. Another piping / wiring protection cover 4 (for example, the straight tubular cover shown in FIGS. 10A to 10C) is connected to the opening end portion 221 which is the other end of the first member 2. The open end portion 221 is located at the straight pipe portion 22. This connection is made by inserting another pipe / wiring protection cover 4 from the open end portion 221 into the straight pipe portion 22. A locking rib 222 projects from the inner surface of the straight pipe portion 22, and the other inserted pipe / wiring protection cover 4 can be locked in that state. As shown in FIG. 10C, the other piping / wiring protection cover 4 can be supported, for example, from the wall surface of the building via the support metal fitting 6.

The cross-sectional shape of the first member 2 orthogonal to the axis is circular at least at the connection end 211. In the present embodiment, the cross-sectional shape is circular in the total length in the direction along the axis.

As shown in FIG. 1 and the like, the first member 2 is a combination of two members having a semi-cylindrical shape on the front side and the back side, respectively. These two members are connected by a screw (not shown) such as a bolt to be integrated. Therefore, the semi-cylindrical portion is provided with a through hole 24 penetrating from the front surface to the back surface side, and a screw for connecting is passed through the through hole 24. Further, the combination of the two semi-cylindrical members is unevenly fitted by the fitting portion 25. As a result, the two members are firmly combined.

A flange portion 212 protruding in the out-of-diameter direction is formed at the connection end portion 211 of the first member 2. The collar portion 212 of the present embodiment is continuously formed in the circumferential direction. However, the present invention is not limited to this, and it may be formed intermittently.

Next, the second member 3 is a tubular member which is an upper portion of the one shown in FIG. 1 and has an axis 3R for scooping an arc having a constant curvature. The curvature of the arc is the same as the curvature of the arc in the first member 2. Like the first member 2, the second member 3 also has a curved pipe portion 31 along the axial center 3R for scooping the arc and a straight pipe portion 32 along the linear axial center. The outer diameter dimension and the inner diameter dimension are the same for the curved pipe portion 31 and the straight pipe portion 32. Further, the outer diameter dimension and the inner diameter dimension of the straight pipe portion 32 in the second member 3 are equal to the outer diameter dimension and the inner diameter dimension of the straight pipe portion 22 and the curved pipe portion 21 in the first member 2. Further, the outer diameter dimension and the inner diameter dimension of the curved pipe portion 31 are larger than the outer diameter dimension and the inner diameter dimension of the curved pipe portion 21 in the first member 2. The bending angle of the curved pipe portion 31 is 45 degrees, which is equal to the bending angle of the curved pipe portion 21 in the first member 2. The length of the straight pipe portion 32 in the axial direction (or the ratio of the length to the entire second member 3) is not limited to that shown in the figure. Further, the portion corresponding to the straight pipe portion 32 of the present embodiment may have a different shape other than the straight tubular portion.

In the second member 3, both ends of the connection end 311 and the open end 321 are open. The first member 2 is connected to the connection end 311. The connection end portion 311 is located at the curved pipe portion 31. Another piping / wiring protection cover 5 (see, for example, FIGS. 10A to 10C) is connected to the opening end portion 321. The open end portion 321 is located at the straight pipe portion 32. This connection is made by inserting another pipe / wiring protection cover 5 from the open end portion 321 into the straight pipe portion 32. A locking rib 322 projects from the inner surface of the straight pipe portion 32, and the other inserted pipe / wiring protection cover 5 can be locked in that state. As shown in FIG. 10C, a decorative plate 7 may be provided at the end of the other piping / wiring protection cover 5 facing the wall surface of the building.

The cross-sectional shape of the second member 3 orthogonal to the axis is circular at least at the connection end 311. In the present embodiment, the cross-sectional shape is circular in the total length in the direction along the axis.

As shown in FIG. 1 and the like, the second member 3 is a combination of two members having a semi-cylindrical shape on the front side and the back side, respectively. These two members are connected by a screw (not shown) such as a bolt to be integrated. Therefore, the semi-cylindrical portion is provided with a through hole 33 penetrating from the front surface to the back surface side, and a screw for connecting is passed through the through hole 33. Further, the combination of the two semi-cylindrical members is unevenly fitted by the fitting portion 34. As a result, the two members are firmly combined.

An inward projection 312 protruding in the inward direction is formed at the connection end 311 of the second member 3. The introverted protrusion 312 of the present embodiment is continuously formed in the circumferential direction. However, the present invention is not limited to this, and it may be formed intermittently. As shown in FIG. 6, in a state where the second member 3 is pulled out from the first member 2, the flange portion 212 formed on the first member 2 and the inward projection 312 formed on the second member 3 are in contact with each other. Touch. Therefore, it is possible to prevent the second member 3 from being unexpectedly separated from the first member 2, so that, for example, a fall accident of each member 2 or 3 can be prevented, and the usability at the construction site is good.

As shown in FIG. 6, the second member 3 is provided with a curved pipe portion 31 which is a part of the bent portion cover 1 on the outside of the first member 2. The second member 3 moves (slides) outward of the first member 2 along the axes 2R and 3R that draw an arc of the same curvature between the first member 2 and the second member 3 with respect to the first member 2. (Move) is possible. Further, the second member 3 can move in the circumferential direction (direction around the axis) of the first member 2.

As described above, the cross-sectional shapes of the first member 2 and the second member 3 orthogonal to the axis are circular at least at the connection ends 211 and 311. Therefore, when the second member 3 is moved with respect to the first member 2 in the circumferential direction of the first member 2, the second member 3 is not once removed from the first member 2, but is simply rotated. It can be twisted as shown in 7. Therefore, the labor at the construction site can be reduced. Further, by temporarily removing the second member 3 from the first member 2, the risk of dropping and damaging the first member 2 or the second member 3 during aerial work can be reduced.

By moving the second member 3 with respect to the first member 2 along the axes 2R and 3R that draw an arc, the second member 3 can be pulled out from the first member 2 as shown in FIG. It can be pushed in as shown in FIG. Therefore, the overall angle of the bent portion cover 1 can be changed steplessly as in each of the states shown in FIGS. 2 (a) and 2 (b), 8 and 9. In other words, the open end 221 of the first member 2 (the end opposite to the side to which the second member 3 is connected) and the open end 321 of the second member 3 (the side to which the first member 2 is connected). The angle between the end and the opposite end is variable.

The movement of the second member 3 with respect to the first member 2 is such that the second member 3 enters the first member 2. Therefore, it can be moved steplessly. Therefore, in the bent portion cover 1 of the present embodiment, an arbitrary bending angle other than a fixed angle such as 90 degrees or 45 degrees, which is used in the conventional cover, can be used. Therefore, it is possible to flexibly respond to the situation at the construction site.

In the bent portion cover 1 of the present embodiment configured as described above, since the second member 3 can move with respect to the first member 2 along the axes 2R and 3R for scooping the arc, the second member 3 is second. The degree of covering of the member 3 on the first member 2 can be adjusted. Therefore, the bent shape can be formed according to the covering condition. Since the second member 3 can move with respect to the first member 2 in the circumferential direction of the first member 2, the degree of twist in the circumferential direction can be adjusted. Therefore, the opening directions of the connecting ends 211 and 311 can be set at one end and the other end of the bent portion cover 1 at an angle according to the degree of twist.

Specifically, a state of 90 degrees in front view as shown in FIGS. 1 and 2 (a) and 2 (b), a state of 45 degrees in front view as shown in FIG. 8, and a state of 45 degrees in front view, as shown in FIG. It can be a bent shape corresponding to each state in the intermediate state. This makes it possible to adapt to various bends. Then, the second member 3 is twisted 180 degrees with respect to the first member 2, and the state shown in FIG. 7 can be obtained. This makes it possible to adapt to offset construction. In the present embodiment, it is not necessary to sandwich the straight tubular cover as in the conventional case, especially at the time of offset construction. Therefore, it is possible to shorten the distance between two parallel linear axes related to the offset.

In the bent portion cover 1 of the present embodiment, the second member 3 can be bent by moving the second member 3 along the axes 2R and 3R for scooping the arc, and the second member 3 can be twisted in the circumferential direction at the same time. ..

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, in the above-described embodiment, the first member 2 is set as the fixed side and the second member 3 is set as the moving side. However, the relationship between the fixed side and the moving side is not limited to this, and the first member 2 may be the moving side and the second member 3 may be the fixed side. Further, both the first member 2 and the second member 3 can be moved at the same time.

Further, the cross-sectional shapes of the first member 2 and the second member 3 at the connection ends 211 and 311 are not limited to the circular shape as in the above embodiment, but may be polygonal. Further, it may be oval or elliptical. However, in the case of a polygon, for example, in the case of a rectangle, only two directions of 0 degree and 180 degrees can be selected, and the choice is limited. Therefore, a regular polygon is preferable because it can increase the possibility of angle selection.

Regarding the fact that the second member 3 can move in the circumferential direction of the first member 2, in the above-described embodiment, the cross-sectional shape of the connection ends 211 and 311 is circular, so that the second member 3 can be moved from the first member 2. I could move it just by rotating it without removing it. However, when the cross-sectional shape of the connection ends 211 and 311 is polygonal, the second member 3 is once removed from the first member 2 and reinserted so that the second member 3 is moved in the circumferential direction of the first member 2. Move.

Further, in the above-described embodiment, the bending angle of the curved pipe portion 21 in the first member 2 and the bending angle of the curved pipe portion 31 in the second member 3 were both 45 degrees. However, the relationship between the bending angles can be changed as appropriate. For example, as shown in FIG. 11, the bending angle of the curved pipe portion 21 in the first member 2 is set to 22.5 degrees, and the bending angle of the curved pipe portion 31 in the second member 3 is set to 22.5 degrees. The bending angle can be 45 degrees. Further, as shown in FIG. 12, the bending angle of the curved pipe portion 21 in the first member 2 and the bending angle of the curved pipe portion 31 in the second member 3 can both be 30 degrees. Further, as shown in FIG. 13, the bending angle of the curved pipe portion 21 in the first member 2 can be set to 20 degrees, and the bending angle of the curved pipe portion 31 in the second member 3 can be set to 10 degrees. Incidentally, FIGS. 11 to 13 show a state in which the second member 3 is pulled out to the maximum with respect to the first member 2. Further, these other embodiments are shown as representatives of the front views in FIGS. 11 to 13. The drawings in the other directions other than the front view of the six views are shown in the same manner as the six views according to the embodiment for these other embodiments. Further, with respect to these other embodiments, the state in which the second member 3 is rotated by 180 degrees in the circumferential direction is shown in the same manner as in FIG. 7 of the embodiment. Further, with respect to these other embodiments, the state in which the second member 3 is moved in the axial direction is shown in the same manner as in FIGS. 8 and 9 of the embodiment.

1 Piping / wiring protection cover, bent part cover 2 1st member 3 2nd member 2R Axle center for scooping arc (1st member)
Axle center for sculpting the 3R arc (second member)
21 Curved pipe part 211 Connection end part 212 Flange part 22 Straight pipe part 221 Open end part 31 Curved pipe part 311 Connection end part 312 Introvert 32 Straight pipe part 321 Open end part

Claims (4)

A tubular first member with an axis that scoops an arc of constant curvature,
A second member having an axial center of scooping an arc having the same curvature as the first member, a part of which is a tubular shape provided on the outside of the first member, and is connected to one end of the first member. With parts,
The second member can move outward of the first member along the axis of the arc with respect to the first member, and can move in the circumferential direction of the first member. Protective cover. The piping / wiring protection cover according to claim 1, wherein the entire angle can be changed steplessly by moving the second member with respect to the first member along the axis of the arc. The piping / wiring protection cover according to claim 1 or 2, wherein the first member and the second member have a circular cross-sectional shape at least at each end to which the two members are connected. According to any one of claims 1 to 3, a collar portion is formed at one end of the first member and the second member, and an inward protrusion that contacts the collar portion is formed at the other end portion. Described piping / wiring protection cover.

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