JP7032219B2 - Piping support with drop prevention function - Google Patents

Description

The present invention relates to a pipe support with a fall prevention function. In particular, it is a pipe support tool that supports pipes for storing electric cables laid along the wall surface of motorways or bridges, and the pipe pillow fixed to the wall surface and the pipe band that holds the pipes work together. The present invention relates to the structure of a pipe support that supports the pipe and prevents it from falling off.

For example, on a motorway or a bridge, pipes for storing electric cables are laid along the wall surface. Such pipes are supported by a plurality of pipe supports arranged along the longitudinal direction thereof.

Examples of such pipe supports include a box-shaped pipe pillow that has a concave surface that can be contacted with the outer circumference of the pipe and can be fixed to the wall surface with screws, and a pipe pillow that can be freely connected to the pipe pillow with the pipe installed inside. A pipe holder (hereinafter referred to as a pipe support) which is composed of a pipe band and can be fixed to either a flat wall surface of a building or a curved wall surface of a columnar body is disclosed (for example, Patent Document). 1).

Japanese Unexamined Patent Publication No. 2008-25825

FIG. 6 is a cross-sectional view showing the configuration of the piping support according to the prior art. Note that FIG. 6 corresponds to FIG. 8 of Patent Document 1. Referring to FIG. 6, the conventional piping support 9 includes a box-shaped tube pillow 91 and a tube band 92.

Referring to FIG. 6, the tube pillow 91 is made of a deformable synthetic resin and has a square frame 911 and a strip-shaped pedestal 912 in which the central portion of the frame 911 is crosslinked. The pedestal 912 has a locking hole 91h through which the screw portion of the screw B can be inserted is opened in the central portion. The locking hole 91h defines the hole diameter so that the head of the screw B is difficult to enter.

With reference to FIG. 6, the contact surface 91f of the frame body 911 is in contact with the flat wall surface Wf, and the screw B is fastened to the wall surface Wf via the locking hole 91h, whereby the tube pillow 91 is attached to the wall surface Wf. Can be fixed. A bowl-shaped recess 913 is formed on the inner side of the locking hole 91h from the contact surface 91f of the pedestal 912.

When the screw B is fastened to the wall surface Wf with reference to FIG. 6, the head of the screw B can urge a force that deforms the central portion of the pedestal 912. As a reaction to the force that deforms the central portion of the pedestal 912, a tensile force acts on the screw portion of the screw B, so that the screw B can be securely fastened to the wall surface Wf without loosening.

Referring to FIG. 6, the tube pillow 91 forms a pair of hook pieces 91k and 91k on the inner wall of the frame body 911. The pair of hook pieces 91k and 91k are arranged so as to face each other. On the other hand, the pipe band 92 is composed of a connecting portion 921 curved in an arc shape and a pair of arms 922 and 922 extending in a band shape in parallel with the connecting portion 921. The pair of arms 922/922 has a pair of claw pieces 92n / 92n formed at the tip thereof.

When the pair of arms 922 and 922 are inserted into the frame body 911 with reference to FIG. 6, the pair of claw pieces 92n and 92n can be engaged with the pair of hook pieces 91k and 91k. When the pair of arms 922 and 922 enter the inside of the frame 911 with the pipe Pb introduced into the inside of the connecting portion 921 from the outer peripheral direction thereof, the claw piece 92n is locked to the hook piece 91k, so that the pipe pillow The pipe 91 and the pipe band 92 can cooperate to support the pipe Pb.

Referring to FIG. 6, the pipe Pb is actually a bellows pipe having a corrugated outer circumference. The pipe Pb contains, for example, an electric cable (not shown) inside. The tube pillow 91 has a first arc portion 91c having a large radius of curvature and a second arc portion 91d having a small radius of curvature formed on the opposite surface to the contact surface 91f of the frame body 911. The first arc portion 91c and the second arc portion 91d share their centers.

With reference to FIG. 6, when the pipe Pb is introduced inside the connecting portion 921 and the pipe band 92 is engaged with the pipe pillow 91, the first arc portion 91c can abut on the annular convex portion of the bellows pipe. .. On the other hand, the second arc portion 91d can abut on the annular recess of the bellows tube. Thereby, the movement of the bellows pipe in the axial direction can be restricted with respect to the pipe support 9.

With reference to FIG. 6, when the pipe support 9 is fixed to the curved wall surface of a columnar body (not shown) such as a utility pole, a band-shaped shape is formed in the insertion holes 910 and 910 formed on both sides of the pedestal 912. By inserting a band member (not shown) and tightening the band member (not shown) to the columnar body, the pipe support 9 can be fixed to the columnar body (not shown).

Referring to FIG. 6, in the pipe support 9 according to Patent Document 1, when the pipe support 9 is fixed to the flat wall surface W, the screw B is slackened depending on the force for deforming the central portion of the pedestal 912. However, there is a possibility that the screw B may pop out from the pedestal 912 due to vibration or the like.

Further, in the pipe support 9 according to Patent Document 1, if an inadvertent external force acts on the tip end side of the pipe band 92, the engagement between the pipe pillow 91 and the pipe band 92 may be released. When fixing to a flat wall surface using a fastener such as a screw, there is a demand for a pipe support that can reliably support the pipe without the fastener falling off. The above can be said to be the subject of the present invention.

The present invention has been made in view of such a problem, and is a pipe support for supporting a pipe for storing an electric cable, and is connected to a pipe pillow and a pipe pillow fixed to a wall surface by using a fastener. It is an object of the present invention to provide a pipe support tool for reliably supporting a pipe and preventing it from falling off in cooperation with the pipe band.

The present inventors have a pipe pillow in which a counterbore is formed in a concave surface capable of contacting a pipe and a screw member is inserted into the counterbore to fix the pipe to a wall surface, and a pipe band capable of supporting the pipe to the pipe pillow. A pair of arms extending from the connecting portion of the pipe band are fixed to both side surfaces of the pipe pillow by forming a piping support and using a bolt member and a nut member, and the shaft portion of the bolt member is attached to the head of the screw member. By arranging them in close proximity, it is possible to prevent the screw member from jumping out of the counterbore, and it is thought that this will ensure that the pipe can be supported on the wall surface. Came to invent.

(1) The pipe support with a drop-out prevention function according to the present invention is a pipe support that supports a pipe on a wall surface, and has a concave surface on one surface that is recessed so that the pipe can be abutted from the outer peripheral direction. A pipe pillow having a contact surface that can be contacted with a wall surface on the other surface, a connecting portion that is curved so that the pipe can be introduced inside, and a connecting portion that extends substantially parallel to the connecting portion and is adjacent to the concave surface. The head can be accommodated in a pair of pipe bands having a band-shaped arm capable of contacting the inner wall on the tip side with a pair of side surfaces and a counterbore drilled from the concave surface of the tube pillow, and from the bottom surface of the counterbore. A screw member that allows a screw portion to be inserted into a locking hole that penetrates toward the contact surface and fixes the pipe pillow to the wall surface, a pair of bolt holes opened on the tip end side of the arm, and a counterbore hole. With the bolt insertion holes that cross the peripheral wall of the pipe and penetrate both sides of the pipe pillow, the shaft portion can be inserted into the bolt hole and the bolt insertion hole, and the nut member can be fastened to the bolt member. The bolt member is arranged so that the outer periphery of the shaft portion thereof is close to the head of the screw member.

(2) The bolt member may consist of a dropout prevention bolt that prevents the nut member from falling off.

(3) The fall-off prevention bolt has a head portion at one end, a male screw portion, and a bolt body having a fitting shaft portion formed in the middle portion of the male screw portion as a shaft portion, and the fitting shaft portion. A notch that can be introduced from the outer peripheral direction is opened on the outer periphery, and a cylindrical dropout prevention member fitted to the fitting shaft portion is provided so as to be in close contact with the outer periphery of the fitting shaft portion. The member has a circular outer circumference whose diameter is smaller than the mountain diameter of the female screw portion of the nut member, and a protrusion whose tip surface can press the inner wall of the female screw portion of the nut member by bulging from the outer circumference of the fall prevention member. In a state where the nut member is rotated with respect to the bolt body by a predetermined torque or more, the nut member can be screwed with respect to the bolt body against the pressing force of the protrusion. In a state where the nut member passes through the protrusion toward the head, it is preferable that the protrusion is elastically restored.

(4) The tube pillow and the tube band are preferably molded of synthetic resin.

The pipe support with a fall prevention function according to the present invention has a pipe pillow in which a counterbore is formed in a concave surface on which the pipe can be contacted, and a screw member is inserted into the counterbore to fix the pipe to the wall surface. A pipe support is configured with a pipe band that can be supported, and a pair of arms extending from the connecting part of the pipe band are fixed to both sides of the pipe pillow by using a bolt member and a nut member, and the shaft part of the bolt member is fixed. By arranging the screw member in a state close to the head of the screw member, it is possible to prevent the screw member from jumping out of the counterbore, whereby the pipe can be reliably supported on the wall surface.

Further, in the pipe support with a fall prevention function according to the present invention, it is preferable to configure the bolt member with a fall prevention bolt that prevents the nut member from falling off, and it is possible to prevent the pipe band from falling off from the pipe pillow.

It is a figure which shows the structure of the pipe support with the drop-off prevention function by 1st Embodiment of this invention, FIG. 1 (A) is the front view of the pipe support, and FIG. 1 (B) is the plan view of the pipe support. 1 (C) is a right side view of the pipe support, and FIG. 1 (D) is a cross-sectional view taken along the line AA of FIG. 1 (B). It is a figure which shows the structure of the pipe support with the drop-off prevention function by 1st Embodiment, 1 pipe support is shown in the perspective view, and the other pipe support is shown in the perspective exploded assembly drawing. It is a perspective view which shows the structure of the drop-off prevention bolt provided in the pipe support with the drop-off prevention function by 1st Embodiment. It is a perspective exploded assembly drawing which shows the structure of the drop-off prevention bolt provided in the pipe support with the drop-off prevention function by 1st Embodiment. It is a figure which shows the structure of the pipe support with the drop-off prevention function by 2nd Embodiment of this invention, FIG. 5 (A) is the front view of the pipe support, and FIG. 5 (B) is the plan view of the pipe support. 5 (C) is a right side view of the pipe support. It is sectional drawing which shows the structure of the pipe support by the prior art.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[First Embodiment]
(Composition of piping support with drop prevention function)
First, the configuration of the pipe support with a dropout prevention function according to the first embodiment of the present invention will be described.

1A and 1B are views showing the configuration of a pipe support with a dropout prevention function according to the first embodiment of the present invention, FIG. 1A is a front view of the pipe support, and FIG. 1B is a pipe support. A plan view of the tool, FIG. 1 (C) is a right side view of the pipe support, and FIG. 1 (D) is a cross-sectional view taken along the line AA of FIG. 1 (B).

FIG. 2 is a diagram showing a configuration of a pipe support with a dropout prevention function according to the first embodiment, in which one pipe support is shown in a perspective view and the other pipe support is shown in a perspective exploded assembly view.

FIG. 3 is a perspective view showing a configuration of a fall prevention bolt provided in the pipe support with a fall prevention function according to the first embodiment. FIG. 4 is a perspective exploded assembly view showing a configuration of a fall prevention bolt provided in a pipe support with a fall prevention function according to the first embodiment.

(overall structure)
Referring to FIGS. 1 to 4, the pipe support 10 with a dropout prevention function according to the first embodiment of the present invention can support the pipe P containing the electric cable or the like on the wall surface Wf (see FIG. 1 (A)). The piping support 10 includes a rectangular parallelepiped tube pillow 1 and a tube band 2. Further, the pipe support 10 includes a bolt member 4 including a screw member 3 and a fall prevention bolt.

Referring to FIG. 1 or FIG. 2, the tube pillow 1 has a concave surface 1d recessed in an arc shape or the like on one surface. The pipe P can be brought into contact with the concave surface 1d from the outer peripheral direction. Further, the tube pillow 1 has a contact surface 1f capable of contacting the wall surface Wf on the other surface.

Referring to FIG. 1 or 2, the pipe band 2 has a connecting portion 21 curved in an arc shape or the like, and a pair of arms 22 and 22 extending in a band shape in parallel with the connecting portion 21. A pipe P can be introduced into the connecting portion 21. The pair of arms 22 and 22 can abut the inner wall on the tip end side with the pair of side surfaces 1s and 1s adjacent to the concave surface 1d. By introducing the pipe P inside the connecting portion 21, the movement of the pipe P can be restrained. That is, the pipe band 2 can hold the pipe P. In the present embodiment, the pipe band 2 has a shape in which the cross section of the connecting portion 21 is curved in a dominant arc shape, but the shape is not necessarily limited to the shape curved in a dominant arc shape, and the pipe P can be held. It should be.

Referring to FIG. 1 or FIG. 2, the tube pillow 1 has a countersunk hole 1h drilled from the concave surface 1d open to the concave surface 1d. Further, the tube pillow 1 opens a locking hole 1k penetrating from the bottom surface of the counterbore hole 1h toward the contact surface 1f. The countersunk hole 1h can accommodate the head portion 3h of the screw member 3. The screw portion 3s of the screw member 3 can be inserted into the locking hole 1k. By screwing the threaded portion 3s of the screw member 3 to the wall surface Wf, the tube pillow 1 can be fixed to the wall surface Wf.

Referring to FIG. 2, the pipe band 2 has a bolt hole 22h opened on the tip end side of the pair of arms 22 and 22. On the other hand, the tube pillow 1 has a bolt insertion hole 11h that crosses the peripheral wall of the counterbore hole 1h and penetrates both side surfaces 1s and 1s of the tube pillow 1. With the pair of bolt holes 22h / 22h and the bolt insertion hole 11h aligned, the shaft portion 4s can be inserted into the bolt hole 22h and the bolt insertion hole 11h. Then, by fastening the nut member 4n to the tip end side of the shaft portion 4s, the pipe band 2 can be fixed to the pipe pillow 1 in a state where the pipe P is supported by the pipe band 2 and the pipe pillow 1. The distance between the pair of arms 22 and 22 may be constant, but it is desirable that the distance between the pair of arms 22 and 22 increases from the connection portion with the connecting portion 21 toward the tip portion. By doing so, when the nut member 4n is fastened to the bolt member 4, the pair of arms 22 and 22 press the nut member 4n and the flat washer 1w, so that the slackening of the nut member 4n with respect to the bolt member 4 is further suppressed. Will be done.

Referring to FIG. 1A or FIG. 1D, the bolt member 4 is arranged in a state where the outer circumference of the shaft portion 4s is close to the head portion 3h of the screw member 3. By arranging the shaft portion 4s of the bolt member 4 in a state close to the head portion 3h of the screw member 3, the screw member 3 can be prevented from popping out from the counterbore hole 1h, whereby the pipe P can be reliably placed on the wall surface Wf. Can be supported by.

Here, referring to FIG. 1A, "the outer circumference of the shaft portion 4s of the bolt member 4 is arranged in a state of being close to the head portion 3h of the screw member 3" means that the outer circumference of the shaft portion 4s is arranged. It means that the tops of the head portion 3h of the screw member 3 are separated by a predetermined short distance. The "predetermined short distance" is a distance that the shaft portion 4s of the bolt member 4 can pass through without being blocked by the head portion 3h of the screw member 3 in a state where the screw member 3 is fixed to the bottom surface of the countersunk hole 1h. The distance is such that even if the screw member 3 is loosened and the head portion 3h moves toward the outer periphery of the shaft portion 4s, the movement of the screw member 3 can be stopped immediately. For example, this distance is preferably 3 mm or less, but is not necessarily limited to 3 mm or less, and may exceed 3 mm as long as the movement of the screw member 3 can be stopped.

(Structure of fall prevention bolt)
Next, the configuration of the bolt member 4 made of the fall prevention bolt will be described. Referring to FIG. 3 or FIG. 4, the bolt member 4 according to the embodiment includes a bolt body 41 and a cylindrical dropout prevention member 42. The bolt body 41 has a head 41h at one end, and has a male screw portion 41m, a fitting shaft portion 41f formed in the middle portion of the male screw portion 41m, and a non-male screw portion 41n having no thread. It is contained in the part 4s. The non-male threaded portion 41n may not be provided, and the male threaded portion 41m may be extended to the non-male threaded portion 41n. The diameter of the non-male threaded portion 41n is the same as the valley diameter of the male threaded portion 41m (see FIG. 4), but it may be increased to the thread diameter (outer diameter) of the male threaded portion 41m.

Referring to FIG. 4, the dropout prevention member 42 is opened by providing a notch 42d on the outer periphery 42c. The notch 42d allows the dropout prevention member 42 to be introduced from the outer peripheral direction of the fitting shaft portion 41f of the bolt body 41. Then, the fall-off prevention member 42 can be fitted to the fitting shaft portion 41f so as to be in close contact with the outer periphery of the fitting shaft portion 41f (see FIG. 3).

Referring to FIG. 4, the dropout prevention member 42 has a circular outer circumference 42c and a protrusion 42b. The outer circumference 42c of the fall prevention member 42 is configured to have a diameter smaller than the mountain diameter (inner diameter) of the female threaded portion 4f of the nut member 4n that can be screwed into the male threaded portion 41 m. The protrusion 42b protrudes in a truncated cone shape from the outer circumference 42c of the dropout prevention member 42. The tip surface of the protrusion 42b can press the inner wall of the female screw portion 4f of the nut member 4n. The protrusion 42b is not particularly limited to a truncated cone shape, and may be a semicircular shape.

With reference to FIG. 3, in a state where the nut member 4n is rotated with respect to the bolt body 41 with a predetermined torque or more by using a tool such as a spanner or a wrench (not shown), the pressing force of the protrusion 42b is resisted. The nut member 4n can be screwed with respect to the bolt body 41. Referring to FIG. 3 or FIG. 4, the nut member 4n can be rotated with respect to the bolt body 41 by using a tool such as a spanner or a wrench (not shown).

With reference to FIG. 1, in a state where the nut member 4n has passed through the protrusion 42b toward the head 41h, the protrusion 42b elastically returns, and the nut member 4n can be prevented from falling off with respect to the bolt body 41. As a result, even if the nut member 4n is loosened with respect to the bolt body 41, the connection between the pipe band 2 and the pipe pillow 1 can be maintained, and the pipe band 2 can be prevented from falling off from the pipe pillow 1. As shown in FIGS. 3 and 4, it is preferable to use a brim nut (flange nut) such as a brim hexagon nut as the nut member 4n.

Subsequently, the configuration of the pipe support 10 will be described. Referring to FIG. 1 or FIG. 2, the screw member 3 is preferably made of a bolt such as a hexagon bolt. Here, a bolt with a flange (bolt with a flange) is used as the screw member 3, but a bolt may be used via a flat washer. By using a bolt with a brim or a flat washer, the contact area with the bottom surface of the countersunk hole 1h can be increased, and the effect of preventing slack can be expected. As the screw member 3, a truss screw having a low height of the head 3h and a large outer diameter of the head 3h may be used.

With reference to FIG. 1 or 2, the tube pillow 1 and the tube band 2 are preferably molded from fiber reinforced plastic such as FRP, but do not necessarily exclude being made of a metal member such as steel or stainless alloy. Referring to FIGS. 3 or 4, the bolt body 41 and the nut member 4n are preferably made of a metal member such as a stainless alloy, and the occurrence of rust can be prevented.

With reference to FIG. 2, when the nut member 4n is fastened to the bolt member 4, it is preferable that a flat washer 1w is interposed between the arm 22 and the head portion 41h of the bolt member 4. The flat washer 1w can suppress damage to the arm 22 due to the screwing of the bolt member 4. A spring washer 1ws may be interposed between the arm 22 and the head 41h of the bolt member 4 in addition to the flat washer 1w. Instead of using the flat washer 1w, a bolt with a brim (bolt with a flange) may be used as the bolt member 4.
In the present embodiment, instead of using a flat washer, a nut with a brim or a bolt with a brim, or both a nut with a brim and a bolt with a brim are used, so that the work of passing the flat washer can be eliminated and workability is improved. Can be made to.

(Action of piping support with drop prevention function)
Next, the operation and effect of the pipe support 10 will be described while explaining how to use the pipe support 10 with a drop prevention function according to the first embodiment. First, referring to FIG. 1 or FIG. 2, the screw member 3 is inserted into the countersunk hole 1h with the screw portion 3s at the head. Next, the tube pillow 1 can be fixed to the wall surface Wf by rotating the screw member 3 using a tool such as a spanner or a wrench (not shown).

Next, with reference to FIG. 1 or FIG. 2, after the pipe P is introduced inside the pipe band 2, the pipe P is brought into contact with the concave surface 1d of the pipe pillow 1. Alternatively, the pipe P is relatively introduced inside the pipe band 2 in a state where the pipe P is in contact with the concave surface 1d of the pipe pillow 1.

Next, referring to FIG. 2, the bolt member 4 is inserted into the bolt hole 22h and the bolt insertion hole 11h in a state where the bolt hole 22h and the bolt insertion hole 11h are matched (see FIG. 1). Next, by fastening the nut member 4n to the shaft portion 4s of the bolt member 4 (see FIG. 1), the assembly work of the pipe support 10 is completed.

Referring to FIG. 1 or FIG. 2, in the piping support 10 according to the first embodiment, since the shaft portion 4s of the bolt member 4 is arranged in a state of being close to the head portion 3h of the screw member 3, the screw member 3 is arranged. It is possible to prevent the counterbore from jumping out from the counterbore 1h. As a result, the pipe P can be reliably supported by the wall surface Wf.

Further, in the pipe support 10 according to the first embodiment, by using the fall prevention bolt as the bolt member 4, even if the nut member 4n is loosened with respect to the bolt member 4, the connection between the pipe band 2 and the pipe pillow 1 can be maintained. , The tube band 2 can be prevented from falling off from the tube pillow 1.
[Second Embodiment]
(Structure of piping support with drop prevention function)
Next, the configuration of the pipe support with a dropout prevention function according to the second embodiment of the present invention will be described.

5A and 5B are views showing the configuration of a pipe support with a dropout prevention function according to the second embodiment of the present invention, FIG. 5A is a front view of the pipe support, and FIG. 5B is a pipe support. The plan view of the tool, FIG. 5C, is a right side view of the piping support.

In addition, since the components having the same reference numerals as those used in the first embodiment have the same action, the following description may be omitted.

Referring to FIG. 5, the pipe support 20 according to the second embodiment of the present invention can support the pipe P containing the electric cable or the like on the wall surface Wf (see FIG. 5A). The pipe support 20 includes a rectangular parallelepiped pipe pillow 5 and a pipe band 6. Further, the pipe support 20 includes a bolt member 4 including a screw member 3 and a fall prevention bolt. As shown in FIG. 1 (C), the pipe support 10 according to the first embodiment has the same width as the pipe pillow 1 and the width of the pipe band 2, but the pipe support 20 according to the second embodiment has the same width as FIG. As shown in (C), the width of the tube pillow 5 is larger than the width of the tube band 6.

Referring to FIG. 5, the tube pillow 5 has a concave surface 5d recessed in an arc shape or the like on one surface. The pipe P can be brought into contact with the concave surface 5d from the outer peripheral direction. Further, the tube pillow 5 has a contact surface 5f capable of contacting the wall surface Wf on the other surface.

Referring to FIG. 5, the pipe band 6 has a connecting portion 61 curved in a dominant arc shape and a pair of arms 62.62 extending in a band shape in parallel with the connecting portion 61. A pipe P can be introduced into the connecting portion 61. The pair of arms 62 and 62 can abut the inner wall on the tip end side with the pair of side surfaces 5s and 5s adjacent to the concave surface 5d. By introducing the pipe P inside the connecting portion 61, the movement of the pipe P can be restrained. That is, the pipe band 6 can hold the pipe P. In this embodiment, the cross section of the tube band 6 is U-shaped. In the second embodiment, the radius of curvature of the dominant arc-shaped connecting portion 61 is smaller than the radius of curvature of the connecting portion 21 shown in FIG. 1 or FIG.

Referring to FIG. 5, the tube pillow 5 has a countersunk hole 5h drilled from the concave surface 5d open to the concave surface 5d. Further, the tube pillow 1 opens a locking hole 5k penetrating from the bottom surface of the counterbore hole 5h toward the contact surface 5f. The countersunk hole 5h can pass through the head portion 3h of the screw member 3. The screw portion 3s of the screw member 3 can be inserted into the locking hole 5k. Then, the tube pillow 5 can be fixed to the wall surface Wf by screwing the screw portion 3s of the screw member 3 to the wall surface Wf.

Referring to FIG. 5, the pipe band 6 has a bolt hole on the tip end side of the pair of arms 62 and 62. On the other hand, the tube pillow 5 has a bolt insertion hole that crosses the peripheral wall of the counterbore hole 5h and penetrates both side surfaces 5s and 5s of the tube pillow 5. With the pair of bolt holes and the bolt insertion holes aligned, the shaft portion 4s can be inserted into the bolt holes and the bolt insertion holes. Then, by fastening the nut member 4n to the tip end side of the shaft portion 4s, the pipe band 6 can be fixed to the pipe pillow 5 in a state where the pipe P is supported by the pipe band 6 and the pipe pillow 5.

Referring to FIG. 5A, the bolt member 4 is arranged in a state where the outer circumference of the shaft portion 4s is close to the head portion 3h of the screw member 3. By arranging the shaft portion 4s of the bolt member 4 in a state close to the head portion 3h of the screw member 3, the screw member 3 can be prevented from jumping out of the cavity 5v, whereby the pipe P is reliably supported by the wall surface Wf. can.

(Action of piping support with drop prevention function)
Next, the operation and effect of the pipe support 20 with a dropout prevention function according to the second embodiment will be described. Referring to FIG. 5, in the pipe support 20 according to the second embodiment, the shaft portion 4s of the bolt member 4 is arranged in a state of being close to the head portion 3h of the screw member 3, so that the screw member 3 is a pipe pillow 5. You can prevent it from jumping out of. As a result, the pipe P can be reliably supported by the wall surface Wf.

Further, in the pipe support 20 according to the second embodiment, by using the fall prevention bolt as the bolt member 4, even if the nut member 4n is loosened with respect to the bolt member 4, the connection between the pipe band 6 and the pipe pillow 5 can be maintained. , The tube band 6 can be prevented from falling off from the tube pillow 5.

1 Tube pillow 1d Concave surface 1f Contact surface 1h Counterbore hole 1s / 1s Pair of side surfaces 2 Tube band 3 Thread member 3h Head (head of thread member)
3s threaded part (threaded part of threaded member)
4 Bolt member 4n Nut member 4s Shaft part (Bolt member shaft part)
10 Piping support with fall prevention function 11h Bolt insertion hole 22h Bolt hole P Piping Wf Wall surface

Claims (4)

A pipe supporter with a fall-prevention function that supports pipes on the wall surface.
A pipe pillow having a concave surface on one surface that is recessed so that the pipe can be abutted from the outer peripheral direction, and a contact surface that can be abutted on the wall surface on the other surface.
A connecting portion that is curved so that the pipe can be introduced inside, and a pair of strip-shaped arms that extend substantially parallel to the connecting portion and can abut the inner wall on the tip end side to the pair of side surfaces adjacent to the concave surface. With a band for pipes
The head can be accommodated in the counterbore hole formed from the concave surface of the tube pillow, and the screw portion can be inserted into the locking hole penetrating from the bottom surface of the counterbore hole toward the contact surface, and the tube pillow can be inserted into the tube pillow. The screw member to be fixed to the wall surface and
With the bolt holes opened on the tip end side of the pair of arms and the bolt insertion holes that cross the peripheral wall of the counterbore and penetrating both side surfaces of the tube pillow, the shaft portion is aligned with the bolt hole and the said. It is equipped with a bolt member that can be inserted into the bolt insertion hole and can fasten the nut member.
The bolt member is a pipe support with a dropout prevention function, in which the outer periphery of the shaft portion is arranged in a state of being close to the head of the screw member. The piping support with a dropout prevention function according to claim 1, wherein the bolt member comprises a dropout prevention bolt that prevents the nut member from falling off. The fall prevention bolt is
A bolt body having a head at one end and a male screw portion and a fitting shaft portion formed in the middle portion of the male screw portion at the shaft portion.
A notch that allows the fitting shaft portion to be introduced from the outer peripheral direction is opened on the outer periphery, and a cylindrical dropout prevention member that is fitted to the fitting shaft portion so as to be in close contact with the outer periphery of the fitting shaft portion. Prepare,
The fall prevention member is
A circular outer circumference whose diameter is smaller than the thread diameter of the female thread of the nut member,
It has a protrusion that bulges from the outer periphery of the fall prevention member and whose tip surface can press the inner wall of the female threaded portion of the nut member.
In a state where the nut member is rotated with respect to the bolt body by a predetermined torque or more, the nut member can be screwed with respect to the bolt body against the pressing force of the protrusion.
The piping support with a dropout prevention function according to claim 2, wherein the protrusion is elastically restored when the nut member passes through the protrusion toward the head. The pipe support with a dropout prevention function according to any one of claims 1 to 3, wherein the pipe pillow and the pipe band are molded of synthetic resin.

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