Piping support member

Abstract

To provide a piping support member having good working efficiency during construction and capable of uniformly and properly supporting piping regardless of the skill of a worker.SOLUTION: A pipe support member (1) that is connected to a base metal fitting (70) fixed to a structural body (S) and supports a pipe (P) includes a holding portion (11) that holds the pipe (P), a base fixing portion (13) that is fixed to the base metal fitting (70) by fastening of a first bolt (B1), and a tightening action portion (16) that applies a tightening force to the holding portion (11) by fastening of a second bolt (B1) different from the first bolt (B2).SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a pipe support member. [Background technology]

[0002] In air conditioning equipment installed in buildings such as buildings, refrigerant piping may be installed from an outdoor unit installed outdoors to an indoor unit installed indoors. In this case, for example, during heating operation, the refrigerant piping may expand axially due to thermal expansion, and a load equivalent to this expansion may be applied to a bent portion (so-called elbow portion) at the end of the refrigerant piping. In particular, when the refrigerant piping is installed vertically, the load due to the refrigerant piping's own weight may also be applied, resulting in a risk of a large load being applied to the bent portion. To address this concern, a pipe support member connected to a base metal fitting fixed to a structure is used to fix a portion of the refrigerant piping in the axial direction, thereby preventing axial movement at the fixed portion. By distributing the expansion of the piping member due to thermal expansion to both sides of the fixed portion in the axial direction, the load on the bent portion at the lowest end is reduced.

[0003] An example of a piping support member is disclosed in Japanese Patent Application Laid-Open No. 2018-25290 (Patent Document 1). This piping support member includes a pair of clamp members 71 each having a slit-shaped engagement hole 73, and supports the piping member P by engaging the engagement hole 73 with a flange 31 of an attachment member 1 fixed to the outer peripheral surface of the piping member P. The attachment member 1 is fixed to the piping member P by welding, such as brazing.

[0004] However, welding work such as brazing requires a certain level of skill, and there is a possibility that the quality of the work will vary depending on the skill of the worker. Also, it is common for multiple piping components P to be installed in a building, and the number of fixing points of the attachment components 1 to the piping components P will be large throughout the entire building to be constructed. Performing all of these by welding requires a great deal of effort, resulting in poor work efficiency. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-25290 Summary of the Invention [Problem to be solved by the invention]

[0006] It is desirable to realize a pipe support member that is efficient in construction and can uniformly and appropriately support pipes regardless of the skill level of the worker. [Means for solving the problem]

[0007] The piping support member according to the present invention comprises: A pipe support member that is connected to a base metal fitting fixed to a structure and supports a pipe, a holding portion that surrounds an outer peripheral surface of the pipe and holds the pipe; base fixing portions extending from the holding portion so as to face each other and fixed to the base metal fitting by fastening a first bolt; and a tightening action portion extending from the holding portion so as to face each other and applying a tightening force to the holding portion by fastening a second bolt separate from the first bolt.

[0008] With this configuration, as the base fixing portion is fixed to the base metal fitting, the holding portion surrounds the outer periphery of the pipe, allowing the pipe to be directly held. For example, there is no need to weld a member with a flange to the pipe, and installation can be performed simply by operating the bolts, improving work efficiency. Furthermore, since bolting alone minimizes variation in worker skill, installation can be made more consistent. Furthermore, since a tightening portion is provided in addition to the base fixing portion fixed to the base metal fitting, in addition to the normal holding of the pipe by the holding portion when the first bolt is tightened, an additional tightening force can be applied to the holding portion by tightening the second bolt. This increases the surface pressure on the inner surface of the holding portion, allowing the pipe to be properly supported.

[0009] Preferred embodiments of the present invention will be described below, but the scope of the present invention is not limited to the preferred embodiments described below.

[0010] In one embodiment, It is preferable that the fastening action portion applies a fastening force to the holding portion in a state where two boundary portions between the holding portion and the pair of fastening action portions are spaced apart from each other.

[0011] With this configuration, the second bolt can be fastened while leaving a certain amount of interference between the pair of fastening portions, so that a sufficient fastening force can be applied to the holding portion, thereby stably supporting the piping.

[0012] In one embodiment, It is preferable that the tightening action portion has a tightening main body portion to which the second bolt is fastened, and has an approach control portion on the opposite side of the holding portion from the fastening position by the second bolt on the tightening main body portion, which abuts against each other when fastened by the second bolt to maintain a constant distance between the tightening main body portions.

[0013] With this configuration, when the second bolt is fastened, the proximity restriction portion serves as a fulcrum, allowing the opposing fastening bodies, spaced a certain distance apart, to be more firmly clamped together, thereby applying a greater clamping force to the retaining portion. This further increases the surface pressure on the inner surface of the retaining portion, allowing the piping to be more firmly supported.

[0014] In one embodiment, It is preferable that the approach restriction portion be formed by bending the tip of the fastening body portion.

[0015] According to this configuration, a proximity restriction portion that maintains a fixed distance between the tightening main bodies can be appropriately configured with a simple structure that simply involves bending the tip of the tightening main body portion.

[0016] In one embodiment, It is preferable that the tip bent portions constituting the pair of fastening action portions abut against each other in a crossing state.

[0017] With this configuration, the tightening force generated by fastening the second bolt can be applied evenly to the pair of tightening action portions, thereby enabling the piping to be stably supported with almost no deformation or bias of the tightening action portions.

[0018] In one embodiment, It is preferable that the retaining portion, the base fixing portion, and the tightening action portion are integrally formed, and that a notch is provided between the base fixing portion and the tightening action portion to prevent the tightening force caused by fastening the second bolt from being transmitted to the base fixing portion.

[0019] With this configuration, the pipe support member can be easily formed, for example, by punching and bending a single metal plate. Furthermore, the notch provided between the base fixing portion and the fastening portion allows the fastening force of the second bolt to be directed appropriately toward the holding portion, thereby firmly supporting the pipe.

[0020] In one embodiment, the fastening action portion is provided adjacent to at least one of the upper and lower sides of the base fixing portion, It is preferable that the fastening action portion abuts against the base metal fitting when the base fixing portion is fixed to the base metal fitting.

[0021] According to this configuration, the fastening portion provided adjacent to at least one of the upper and lower sides of the base fixing portion abuts against the base metal fitting and functions as a strength support for the base metal fitting, thereby enabling stable support of the piping.

[0022] In one embodiment, It is preferable to further include a fixing auxiliary member for temporarily fixing the base fixing portion to the base metal fitting before fastening with the first bolt.

[0023] With this configuration, the worker can perform the tightening operation with the first bolt with both hands free, while the base fixing portion is temporarily fixed to the base metal fitting by the fixing auxiliary member. Therefore, workability can be improved.

[0024] In one embodiment, It is preferable that the auxiliary fixing member is made of resin and also serves as a spacer to prevent direct contact between the base metal fitting and the base fixing portion.

[0025] With this configuration, the auxiliary fixing member for temporary fastening can be formed relatively easily, for example, by injection molding, etc. Furthermore, since the auxiliary fixing member is made of resin with low thermal conductivity and is interposed between the base metal fitting and the base fixing part, condensation on the surface of the base metal fitting can be suppressed.

[0026] Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments, which is given with reference to the drawings. [Brief explanation of the drawings]

[0027] [Figure 1] FIG. 1 is a perspective view of a pipe fixing structure using a pipe support member according to a first embodiment; [Figure 2] An exploded perspective view of a pipe support member [Figure 3] FIG. 10 is a perspective view showing how to use the pipe support member; [Figure 4] Front view of piping fixing structure [Figure 5] Plan view of piping fixing structure [Figure 6] Side view of piping fixing structure [Figure 7] FIG. 10 is a perspective view of a pipe fixing structure using a pipe support member according to a second embodiment; [Figure 8] Side view of piping fixing structure DETAILED DESCRIPTION OF THE INVENTION

[0028] [First embodiment] A first embodiment of a pipe support member will be described with reference to the drawings. As shown in Fig. 1, the pipe support member 1 of this embodiment is connected to a base metal fitting 70 fixed to a structure S to support a pipe P.

[0029] In the following description, the terms "axial direction," "circumferential direction," and "radial direction" may be used to describe the shape, positional relationship, etc. of each component, but these are defined relative to the pipe P, which is the object supported by the pipe support member 1. In other words, "axial direction" refers to the axial direction (longitudinal direction) of the pipe P, "circumferential direction" refers to the direction going around the periphery of the pipe P, and "radial direction" refers to the direction extending radially from the axis of the pipe P. Unless otherwise specified, references to these directions in the description of each part of the pipe support member 1 are intended to refer to the directions when the pipe P is actually held.

[0030] The pipe support member 1 of this embodiment is used for pipes P arranged from an outdoor unit of an air conditioner installed on the roof of a building or other structure to multiple indoor units installed indoors. An example of the pipes P is a copper refrigerant pipe.

[0031] 1 shows an example of a pipe fixing structure using a pipe support member 1 of this embodiment, in which a predetermined location of a pipe P arranged in a vertical direction (up and down direction) is fixed to a structure S. This pipe fixing structure is used to prevent the pipe P from moving axially relative to the structure S at the fixed location. The structure S is, for example, the skeleton or exterior wall of a building.

[0032] A base metal fitting 70 is fixed to the structure S. The base metal fitting 70 may be fixed directly to the structure S, or may be fixed indirectly via another member (for example, an intervening member such as a bracket). The base metal fitting 70 is made of metal, for example, hot-rolled mild steel plate. As shown in FIGS. 1 and 2, the base metal fitting 70 is formed in the shape of a bent plate. The base metal fitting 70 includes an attachment base 71 that can be attached to the structure S (or an intervening member) in a face-to-face contact state, and a connecting portion 72 that extends and intersects (orthogonally in this example) with the attachment base 71. The attachment base 71 and the connecting portion 72 are each formed with an insertion hole 71a, 72a through which a bolt B is inserted.

[0033] The pipe support member 1 is connected to the base metal fitting 70 and supports the pipe P. The pipe support member 1 supports the pipe P arranged in the vertical direction at one location in the axial direction (vertical direction). As shown in FIGS. 1 and 2, the pipe support member 1 includes a restraining member 10 and a fixing auxiliary member 30. In this embodiment, the pipe support member 1 includes one restraining member 10 and two fixing auxiliary members 30. The fixing auxiliary member 30 is detachably attached to the restraining member 10.

[0034] The pipe support member 1 (specifically, the restraining member 10 constituting the pipe support member 1) includes a holding portion 11, a base fixing portion 13, and a fastening portion 16, which are integrally formed. The restraining member 10 is made of metal, for example, hot-rolled mild steel plate.

[0035] The holding portion 11 is a portion for holding the pipe P. The holding portion 11 is formed in a substantially cylindrical shape that is not completely closed. The inner diameter of the holding portion 11 is set to be equal to or approximately equal to the outer diameter of the pipe P. As shown in FIG. 3 , before use, the holding portion 11 does not have a shape that follows a perfect circle when viewed in the axial direction, but is expanded to a certain extent (open position). From this expanded opening, the holding portion 11 can be attached to the pipe P from the outside in the radial direction. Thereafter, an external force is applied to close the expanded holding portion 11, causing it to deform to the closed position, and further, by tightening the first bolt B1 and the second bolt B2 as described below, the holding portion 11 surrounds the outer peripheral surface of the pipe P and holds the pipe P.

[0036] 1 and 2, a through hole 11a is formed in the holding portion 11. The through hole 11a is formed in a portion of the holding portion 11 opposite the base fixing portion 13 and the fastening action portion 16. In this embodiment, a plurality of through holes 11a are formed along the axial direction (lined up and down). The through holes 11a function as bending strength adjustment portions 12 for adjusting the magnitude of the bending strength of the restraint member 10 (specifically, the holding portion 11 that constitutes the restraint member 10).

[0037] The base fixing portion 13 is a portion fixed to the base metal fitting 70. The base fixing portion 13 is composed of a pair of plate portions extending opposite each other from the holding portion 11. In this embodiment, a pair of plate portions constituting the base fixing portion 13 extend radially from both circumferential ends of the holding portion 11, which is not completely closed and has a substantially cylindrical shape. The base fixing portion 13 is formed in an elongated rectangular shape. An insertion hole 13a through which a bolt B (specifically, a first bolt B1) is inserted is formed in the base fixing portion 13. The base fixing portion 13 is fixed to the base metal fitting 70 by fastening the first bolt B1. The shank of the first bolt B1 is inserted through the two insertion holes 13a of the base fixing portion 13 and the insertion hole 72a of the base metal fitting 70, and is then threadedly fastened to a nut N on the opposite side, thereby fixing the base fixing portion 13 to the base metal fitting 70.

[0038] Furthermore, locking recesses 14 recessed toward the center line of the base fixing part 13 are formed on the upper and lower side edges 13b of the pair of plate parts constituting the base fixing part 13. Locking claws 35 of the fixing auxiliary member 30 are locked into these locking recesses 14 (see FIG. 4).

[0039] The fastening portion 16 is a portion for applying a fastening force to the holding portion 11. The fastening portion 16 is composed of a pair of plate portions extending opposite each other from the holding portion 11. In this embodiment, the pair of plate portions constituting the fastening portion 16 extend radially from both circumferential ends of the not completely closed, substantially cylindrical holding portion 11. The extension length of the fastening portion 16 from the holding portion 11 is shorter than the extension length of the base fixing portion 13. In this embodiment, the two fastening portions 16 are provided separately, above and below, with the base fixing portion 13 sandwiched between them.

[0040] The fastening portion 16 has a fastening main body portion 17 and a tip bent portion 18. The fastening main body portion 17 is a main portion of the fastening portion 16. In this embodiment, the fastening main body portion 17 is formed in a substantially square shape. The fastening main body portion 17 has an insertion hole 17a through which a bolt B (specifically, a second bolt B2 separate from the first bolt B1) is inserted. The fastening main body portion 17 is the portion of the fastening portion 16 where the second bolt B2 is fastened. In this embodiment, the second bolt B2 is fastened at a position closer to the retaining portion 11 than the first bolt B1.

[0041] The shank of the second bolt B2 is inserted into the insertion hole 17a of the fastening body 17, and is threadedly fastened to the nut N on the opposite side, thereby applying a fastening force to the holding portion 11. This increases the surface pressure on the inner surface of the holding portion 11, allowing the pipe P to be properly supported. For example, welding processes such as brazing are not required, and installation can be completed simply by tightening the bolts B (first bolt B1, second bolt B2), resulting in high work efficiency. The bolting can also be performed with an electric drill, in which case work efficiency can be significantly improved. Moreover, because the pipe P is held in place by the surface pressure of the holding portion 11, the pipe P will not oxidize or deform (for example, dents will occur due to biting), and is highly reliable.

[0042] The tip bent portion 18 is a bent portion of the tip of the fastening main body portion 17 on the side opposite the holding portion 11. The tip bent portion 18 is bent at a substantially right angle to the fastening main body portion 17. The tip bent portions 18 are bent from the opposing fastening main bodies 17 so as to face each other, and these tip bent portions 18 overlap each other. The tip of one tip bent portion 18 is configured to abut against the fastening main body portion 17 that continues from the other tip bent portion 18 when fastened with the second bolt B2.

[0043] In this way, the tip bent portions 18 are provided on the opposite side of the holding portion 11 from the fastening position of the fastening main body portion 17 by the second bolt B2 (i.e., the position of the insertion hole 17a), and they abut against each other when fastened by the second bolt B2. This abutment causes the tip bent portions 18 to maintain a fixed distance between the fastening main bodies 17 when fastened by the second bolt B2. As a result, when the second bolt B2 is fastened, the contact point between the tip bent portions 18 and the fastening main body portion 17 serves as a fulcrum, allowing the fastening main bodies 17 facing each other at a fixed distance to be more firmly clamped together, and accordingly, a greater fastening force can be applied to the holding portion 11. In this way, the surface pressure on the inner surface of the holding portion 11 is further increased, allowing the piping P to be firmly supported.

[0044] In this embodiment, the tip bent portions 18 function as proximity restricting portions 19 that abut against each other when fastening by the second bolt B2, maintaining a fixed distance between the fastening main body portions 17.

[0045] In this embodiment, by providing such a tip bent portion 18 (proximity restricting portion 19), the pair of opposing fastening action portions 16 apply a fastening force to the retaining portion 11 with their respective root portions (boundary portions with the retaining portion 11) spaced apart from each other. The root portions of the pair of fastening action portions 16 are spaced apart from each other when the second bolt B2 is fully fastened. The separation width between the root portions of the pair of fastening action portions 16 is preferably equal to or greater than the plate thickness of the base metal fitting 70, more preferably equal to or greater than 1.5 times the plate thickness, and even more preferably equal to or greater than 1.8 times the plate thickness.

[0046] As shown in Fig. 4, the two fastening action portions 16, which are provided separately above and below the base fixing portion 13, abut against the base metal fitting 70 from above and below when the base fixing portion 13 is fixed to the base metal fitting 70. In this embodiment, the tip bent portions 18 constituting the fastening action portions 16 abut against the connecting portion 72 of the base metal fitting 70 from above and below in a state in which they intersect (orthogonal in this example). With this configuration, the two fastening action portions 16 (tip bent portions 18) function as strength support for the base metal fitting 70, so that the piping P can be stably supported.

[0047] In this embodiment, a notch 21 is provided between the base fixing portion 13 and each of the two fastening action portions 16. The notch 21 is formed so as to extend radially from the upper and lower side edges 13b of the base fixing portion 13. By providing such notch 21, the base fixing portion 13 and the two fastening action portions 16 can be separated, and the fastening force of the fastening action portions 16 exerted by fastening the second bolt B2 can be made less likely to be transmitted to the base fixing portion 13. In other words, the fastening force of the fastening action portions 16 exerted by fastening the second bolt B2 can be appropriately directed toward the holding portion 11. This allows the piping P to be supported even more firmly.

[0048] 2 and 3, the pipe support member 1 of this embodiment includes a fixing auxiliary member 30 that is detachable from the restraint member 10. The fixing auxiliary member 30 includes a main body portion 31, a side wall portion 33, a pressing protrusion 34, a locking claw portion 35, a first extending portion 37, a second extending portion 38, and an engaging claw portion 39. These are integrally formed. The fixing auxiliary member 30 is made of resin, such as polypropylene or polyacetal.

[0049] The main body 31 is formed in a flat plate shape that fits along the base fixing portion 13 of the restraint member 10. The main body 31 is also formed in a rectangular shape. An insertion hole 31a is formed in the main body 31, through which the bolt B (specifically, the first bolt B1) is inserted. The main body 31 is disposed along the inner surface of each of the pair of plates that make up the base fixing portion 13 when the fixing auxiliary member 30 is attached to the restraint member 10 (hereinafter simply referred to as the "attached state").

[0050] The sidewalls 33 are formed to rise vertically from the rectangular main body 31 along three sides of the main body 31. The sidewalls 33 have a first portion 33A and a second portion 33B and a third portion 33C extending from both ends of the first portion 33A. In the attached state, the first portion 33A abuts against the edge 13c of the base fixing portion 13 opposite the holding portion 11. In the attached state, the second portion 33B and the third portion 33C abut against the upper and lower side edges 13b of the base fixing portion 13.

[0051] The pressing protrusions 34 are formed in the center of each of the first portion 33A, second portion 33B, and third portion 33C of the side wall portion 33. The pressing protrusions 34 are formed to protrude toward the center from the main body portion 31 at a position spaced apart by the plate thickness of the base fixing portion 13 of the restraint member 10. In the attached state, the pressing protrusions 34 abut against the outer surfaces of the pair of plates that make up the base fixing portion 13. As a result, in the attached state, the main body portion 31 and the pressing protrusions 34 cooperate to press down on the pair of plates that make up the base fixing portion 13 from both the inside and outside.

[0052] The locking claws 35 are formed to extend continuously from the second portion 33B and the third portion 33C of the side wall portion 33. In the attached state, the locking claws 35 are locked into locking recesses 14 formed in the upper and lower side edges 13b of a pair of plate portions constituting the base fixing portion 13 (see FIG. 4). This prevents the auxiliary fixing member 30 attached to the restraining member 10 from coming off. In this embodiment, the locking recesses 14 of the base fixing portion 13 and the locking claws 35 of the auxiliary fixing member 30 cooperate to function as retaining portions 41 that prevent the auxiliary fixing member 30 attached to the restraining member 10 from coming off.

[0053] The first extending portion 37 extends outward from the second portion 33B of the side wall portion 33. The second extending portion 38 extends outward from the third portion 33C of the side wall portion 33. The first extending portion 37 and the second extending portion 38 extend in opposite directions. The engaging claw portion 39 is provided at the tip of the second extending portion 38 in a state where it intersects with the second extending portion 38 (in this example, perpendicular to the second extending portion 38).

[0054] In this embodiment, auxiliary fixing members 30 of the same shape are attached to each of a pair of plates constituting the base fixing portion 13. When the restraint member 10 is in the closed position, as shown in FIGS. 4 to 6 , the engaging claw portion 39 of one auxiliary fixing member 30 engages with the first extending portion 37 of the other auxiliary fixing member 30, and the engaging claw portion 39 of one auxiliary fixing member 30 engages with the first extending portion 37 of the other auxiliary fixing member 30. This allows the restraint member 10 to be maintained in the closed position even if the operator releases the restraint member 10. In this embodiment, the first extending portion 37 and the engaging claw portion 39 provided separately on the two auxiliary fixing members 30 cooperate to function as a closed position maintaining portion 42 that maintains the closed position of the restraint member 10.

[0055] In this way, the fixing auxiliary member 30 is first used to temporarily fasten the base fixing portion 13 to the base metal fitting 70 before fastening with the first bolt B1. This allows the worker to perform the fastening operation with the first bolt B1 with both hands free, resulting in excellent workability.

[0056] Furthermore, the auxiliary fixing member 30 will remain attached even after the first bolt B1 is tightened, and the main body portion 31 of the auxiliary fixing member 30 will be interposed between the connecting portion 72 of the base metal fitting 70 and the pair of plates that make up the base fixing portion 13 on either side of it. Secondly, the auxiliary fixing member 30 is used as a spacer to prevent direct contact between the base metal fitting 70 and the base fixing portion 13. By ensuring the spacing between the pair of plates that make up the base fixing portion 13, the spacing between the pair of tightening main bodies 17 of the tightening action portion 16 is ensured, and the tightening allowance of the tightening action portion 16 when the second bolt B2 is tightened is secured.

[0057] Furthermore, in this embodiment, the auxiliary fixing member 30 interposed between the base metal fitting 70 and the base fixing portion 13 is made of resin with low thermal conductivity, so heat transfer from the base fixing portion 13 to the base metal fitting 70 is significantly suppressed. Thirdly, the auxiliary fixing member 30 is used as a heat insulating material that suppresses heat transfer from the base fixing portion 13 to the base metal fitting 70. When the piping P is a refrigerant piping as in this embodiment, heat (e.g., cold heat) of the refrigerant flowing through the piping P can be transferred to the metal restraint member 10 via the piping P. Even in this case, the auxiliary fixing member 30 functions as a heat insulating material and can suppress the transfer of the cold heat to the base metal fitting 70. As a result, condensation on the surface of the base metal fitting 70 can be suppressed.

[0058] Second Embodiment A second embodiment of a piping support member will be described with reference to the drawings. The piping support member 1 of this embodiment differs from the first embodiment in the specific shape of the fastening action portion 16 and the specific shape of the tip bending portion 18 that functions as the proximity restriction portion 19. The following describes the piping support member 1 of this embodiment, focusing mainly on the differences from the first embodiment. Note that, points that are not specifically mentioned are the same as those of the first embodiment, and the same reference numerals are used, and detailed description thereof will be omitted.

[0059] As shown in Fig. 7, the tightening body 17 constituting the tightening portion 16 of this embodiment is formed in a substantially trapezoidal shape. In this embodiment, the two upper and lower tightening body portions 17 (the tightening body portion 17 located on the front side in the example of Fig. 7) extending from one circumferential end of the holding portion 11 are both formed in an inverted trapezoid shape with an upper side longer than a lower base. On the other hand, the two upper and lower tightening body portions 17 (the tightening body portion 17 located on the rear side in the example of Fig. 7) extending from the other circumferential end of the holding portion 11 are both formed in a regular trapezoid shape with a lower side longer than an upper base. As a result, the regular trapezoid tightening body portion 17 and the inverted trapezoid tightening body portion 17 are arranged opposite each other on the upper and lower sides, respectively.

[0060] A raised portion 17B that rises outward is formed in the center of the fastening main body 17. The raised portion 17B is formed in a circular shape. The raised portion 17B functions as a circular rib and improves the strength of the fastening main body 17. In this embodiment, an insertion hole 17a through which the second bolt B2 is inserted is formed in the center of this raised portion 17B.

[0061] As shown in FIGS. 7 and 8 , the distal bent portions 18 formed by bending the distal end of the fastening main body portion 17 on the side opposite the holding portion 11 are in contact with each other while intersecting. In this embodiment, the distal bent portions 18 have a substantially rectangular notched recess 18a in the vertical center region. The distal bent portions 18 of the opposing pair of fastening action portions 16 are in contact with each other while intersecting with each other, with the respective notched recesses 18a facing each other. This configuration allows the fastening force generated by fastening the second bolt B2 to be applied evenly to the pair of fastening action portions 16. This, combined with the increased strength of the fastening main body portion 17 itself due to the formation of the circular protrusion 17B, allows the fastening action portions 16 to stably support the piping P with almost no deformation or bias.

[0062] Other Embodiments (1) In the above-described embodiments, the tightening portion 16 includes the tightening main body 17 and the distal bent portion 18, and the distal bent portion 18 functions as the proximity restricting portion 19. However, the present invention is not limited to such a configuration, and may be configured, for example, such that a portion of the tightening main body 17 has a protrusion, and the protrusion functions as the proximity restricting portion 19. In this case, the protrusion, which is an example of the proximity restricting portion 19, may be formed integrally with the tightening main body 17 by, for example, drawing, or may be formed separately from the tightening main body 17 and fixed to the tightening main body 17.

[0063] (2) In the above embodiments, the fastening portion 16 has the proximity restriction portion 19. However, the present invention is not limited to such a configuration, and the fastening portion 16 does not have to have the proximity restriction portion 19. In this case, the fastening portion 16 can be configured with a pair of fastening main body portions 17 arranged opposite each other at a predetermined distance at least at two boundary portions between the holding portion 11 and the pair of fastening portions 16.

[0064] (3) In each of the above embodiments, a configuration in which a notch 21 is provided between the base fixing portion 13 and each of the two fastening action portions 16 has been described as an example. However, the present invention is not limited to such a configuration, and the notch 21 may not be provided. Furthermore, instead of the notch 21, for example, a simple notch or an easily deformable portion may be provided as a means (fastening force transmission reduction means) for making it difficult for the fastening force of the fastening action portion 16 exerted by fastening the second bolt B2 to be transmitted to the base fixing portion 13 side.

[0065] (4) In the above embodiments, an example has been described in which the two fastening action portions 16 are always in contact with the base metal fitting 70 from above and below when the base fixing portion 13 is fixed to the base metal fitting 70. However, the present invention is not limited to such a configuration, and the fastening action portions 16 and the base metal fitting 70 do not necessarily have to be in contact with each other all the time. In this case, for example, the fastening action portions 16 and the base metal fitting 70 may be arranged with a slight gap between them, and the fastening action portions 16 may immediately come into contact with the base metal fitting 70 when the base metal fitting 70 is tilted slightly upward or downward.

[0066] (5) In the above embodiments, the holding portion 11 is integrally formed in a semi-open, approximately cylindrical shape. However, the present invention is not limited to such a configuration, and the holding portion 11 may be formed as a pair of semi-cylindrical halves. The pair of halves may be formed as a hinged type connected to each other by a pivot portion so as to be able to open and close freely, or as an assembly type having a locking portion and a locked portion.

[0067] (6) In each of the above embodiments, the holding portion 11 may be provided with a means for preventing axial displacement of the pipe P in the held state. The displacement prevention means may be, for example, a locking protrusion formed on the inner surface of the holding portion 11, or may be realized by roughening the inner surface of the holding portion 11 (for example, sandblasting).

[0068] (7) In the above embodiments, the auxiliary fixing member 30 is made of resin. However, the present invention is not limited to such a configuration, and the auxiliary fixing member 30 may be made of, for example, metal.

[0069] (8) In each of the above embodiments, the piping support member 1 has been described as including the restraining member 10 and the auxiliary fixing member 30 that is detachable from the restraining member 10. However, the present invention is not limited to such a configuration, and the piping support member 1 may be configured only with the restraining member 10 without the auxiliary fixing member 30. In this case, a portion having a function equivalent to the closed position maintaining portion 42 provided in the auxiliary fixing member 30 of the above embodiment may be provided integrally with the restraining member 10.

[0070] (9) The configurations disclosed in the above-described embodiments (including the above-described embodiments and other embodiments; the same applies hereinafter) can be applied in combination with configurations disclosed in other embodiments, as long as no contradiction occurs. Regarding other configurations, the embodiments disclosed in this specification are illustrative in all respects and can be appropriately modified within the scope of the present disclosure. [Explanation of symbols]

[0071] 1 Pipe support member 11 Holding part 13 Base fixing part 16 Fastening action part 17 Fastening body 18 Tip bent part 19 Proximity Control Department 21 Notch 30 Fixing auxiliary member 70 Base metal fittings S structure P piping B1 First Bolt B2 Second bolt

Claims

[Claim 1] A pipe support member that is connected to a base metal fitting fixed to a structure and supports a pipe, a holding portion that surrounds an outer peripheral surface of the pipe and holds the pipe; base fixing portions extending from the holding portion so as to face each other and fixed to the base metal fitting by fastening a first bolt; A piping support member comprising: a tightening action portion extending from the retaining portion so as to face each other and applying a tightening force to the retaining portion by tightening a second bolt separate from the first bolt.

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