Piping support member

Abstract

To provide a piping support member which makes work efficiency proper during the execution of work, and which can uniformly and appropriately support piping without reference to an operator's skill.SOLUTION: A piping support member (1), which is connected to a base fitting (70) fixed to a structure (S) so as to support piping (P), comprises: a holding part (11) for holding the piping (P); a base fixing part (13) for being fixed to the base fitting (70) by tightening of a first bolt (B1); and a tightening action part (16) that makes a tightening force act on the holding part (11) by tightening of a second bolt (B2) different from the first bolt (B1).SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] In air conditioners installed in buildings such as buildings, refrigerant piping may be arranged 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 in the axial direction due to thermal expansion, and the load of this expansion may be applied to a bent part (so-called elbow part) on the end side of the refrigerant piping. In particular, when the refrigerant piping is arranged in the vertical direction, the load due to the weight of the refrigerant piping may also be applied, and a large load may be applied to the bent part. In response to such concerns, a pipe support member connected to a base metal fitting fixed to a structure is used to fix a part of the refrigerant piping in the axial direction, and the axial movement at the fixed part is prevented. The amount of expansion of the piping member due to thermal expansion is distributed to both sides in the axial direction with the fixed part as the center, thereby reducing the load on the bent part on the lowest end side.

[0003] One example of a pipe support member is disclosed in JP 2018-25290 A (Patent Document 1). This pipe support member includes a pair of clamp members 71 having slit-shaped engagement holes 73, and supports the pipe member P by engaging the engagement holes 73 with the flange portion 31 of the mounting member 1 fixed to the outer circumferential surface of the pipe member P. The mounting member 1 is fixed to the pipe member P by a welding method such as brazing.

[0004] However, welding such as brazing requires a certain level of skill, and the quality of the work may vary depending on the skill of the worker. In addition, a building generally has multiple piping members P installed, and the number of fixing points of the mounting members 1 to the piping members P increases 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] JP 2018-25290 A Summary of the Invention [Problem to be solved by the invention]

[0006] It is desirable to realize a pipe support member that has good work efficiency during installation and can uniformly and appropriately support pipes regardless of the skill of the worker. [Means for solving the problem]

[0007] The pipe 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] According to this configuration, when the base fixing part is fixed to the base metal fitting, the outer peripheral surface of the pipe is surrounded by the holding part, and the pipe can be directly held. For example, there is no need to weld a member having a flange to the pipe, and the pipe can be installed only by bolt operation, which improves work efficiency. In addition, since there is almost no variation in the skill of the worker if only the bolt operation is performed, the installation can be made uniform. Furthermore, since a fastening action part is provided in addition to the base fixing part fixed to the base metal fitting, in addition to the normal holding of the pipe by the holding part when the first bolt is fastened, an additional fastening force can be applied to the holding part by fastening the second bolt. This increases the surface pressure by the inner surface of the holding part, and the pipe can be properly supported.

[0009] Preferred embodiments of the present invention will be described below. However, 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 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 portions are spaced apart from each other.

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

[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 a proximity control portion on the opposite side of the retaining portion from the fastening position by the second bolt in the tightening main body portion, which abuts against each other when tightened by the second bolt to maintain a constant distance between the tightening main body portions.

[0013] According to this configuration, when the second bolt is fastened, the proximity restriction portion serves as a fulcrum, and the fastening main body portions facing each other at a certain distance can be more firmly clamped together, and accordingly, a larger fastening force can be applied to the retaining portion. This further increases the surface pressure on the inner surface of the retaining portion, and the piping can be more firmly supported.

[0014] In one embodiment, It is preferable that the approach restriction portion is configured by a tip bent portion obtained by bending the tip of the fastening main body portion.

[0015] According to this configuration, a proximity restriction portion that maintains a constant distance between the fastening main bodies can be appropriately configured with a simple structure that only requires bending the tips of the fastening main bodies.

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

[0017] According to this configuration, the fastening force generated by fastening the second bolt can be applied evenly to the pair of fastening action parts, thereby making it possible to stably support the piping with almost no deformation or bias of the fastening action parts.

[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] According to this configuration, the pipe support member can be easily formed, for example, by punching out a single metal plate and bending it. In addition, the notch provided between the base fixing portion and the fastening portion allows the fastening force of the second bolt to be appropriately directed toward the holding portion. Therefore, the pipe can be firmly supported.

[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 portion abuts against the base metal fitting in a state in which 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 making it possible to stably support 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] According to this configuration, the fixing auxiliary member for temporary fixing can be formed relatively easily, for example, by injection molding, etc. Also, since the fixing auxiliary member made of resin with low thermal conductivity 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 are given with reference to the drawings. [Brief description 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; [Diagram 2] FIG. 3 is an exploded perspective view of a pipe support member; [Diagram 3] FIG. 13 is a perspective view showing a method of using the pipe support member; [Figure 4] Front view of piping fixing structure [Diagram 5] Plan view of piping fixing structure [Figure 6] Side view of piping fixing structure [Figure 7] FIG. 13 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 PREFERRED EMBODIMENTS

[0028] [First embodiment] A first embodiment of a pipe support member will be described with reference to the drawings. As shown in FIG. 1, a 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 and positional relationship of each component, but these are defined based on the pipe P that 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 the present embodiment is used for pipes P arranged from an outdoor unit of an air conditioner installed on the roof of a structure such as a building to a plurality of 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, and is configured using, for example, a hot-rolled mild steel plate. As shown in Figs. 1 and 2, the base metal fitting 70 is formed in a curved plate shape. The base metal fitting 70 includes an attachment base 71 that can be abutted against the structure S (or an intervening member) in a surface-contact state, and a connecting portion 72 that extends and intersects (orthogonally in this example) the attachment base 71. The attachment base 71 and the connecting portion 72 are formed with insertion holes 71a, 72a through which the bolt B is inserted, respectively.

[0033] The pipe support member 1 is connected to a base metal fitting 70 to support the pipe P. The pipe support member 1 supports the pipe P arranged along 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 attached to the restraining member 10 in a detachable manner.

[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. These are integrally formed. The restraining member 10 is made of metal, and is formed using, for example, a hot-rolled mild steel plate or the like.

[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 or substantially 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 along 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 to deform it to a closed position, and further, a first bolt B1 and a second bolt B2 are fastened as described later, whereby the holding portion 11 surrounds the outer circumferential surface of the pipe P to hold 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 to 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 bending strength of the restraining member 10 (specifically, the holding portion 11 constituting the restraining member 10).

[0037] The base fixing part 13 is a part fixed to the base metal fitting 70. The base fixing part 13 is composed of a pair of plate parts extending from the holding part 11 so as to face each other. In this embodiment, a pair of plate parts constituting the base fixing part 13 extend in the radial direction from both circumferential ends of the approximately cylindrical holding part 11 that is not completely closed. The base fixing part 13 is formed in an elongated rectangular shape. The base fixing part 13 has an insertion hole 13a through which a bolt B (specifically, a first bolt B1) is inserted. The base fixing part 13 is fixed to the base metal fitting 70 by fastening the first bolt B1. The shaft part of the first bolt B1 is inserted through the two insertion holes 13a of the base fixing part 13 and the insertion hole 72a of the base metal fitting 70, and is screwed into a nut N on the opposite side and fastened, thereby fixing the base fixing part 13 to the base metal fitting 70.

[0038] Furthermore, upper and lower side edges 13b of a pair of plate portions constituting the base fixing portion 13 are each formed with a locking recess 14 recessed toward the center line side of the base fixing portion 13. A locking claw portion 35 of the auxiliary fixing member 30 is locked in the locking recess 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 from the holding portion 11 so as to face each other. In this embodiment, a pair of plate portions constituting the fastening portion 16 extend radially from both circumferential ends of the substantially cylindrical holding portion 11, which is not completely closed. 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, sandwiching the base fixing portion 13 therebetween.

[0040] The fastening portion 16 has a fastening main body 17 and a tip bent portion 18. The fastening main body 17 is a main portion of the fastening portion 16. In this embodiment, the fastening main body 17 is formed in a substantially square shape. The fastening main body 17 is formed with an insertion hole 17a through which a bolt B (specifically, a second bolt B2 different from the first bolt B1) is inserted. The fastening main body 17 is a 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 shaft of the second bolt B2 is inserted into the insertion hole 17a of the fastening body 17, and the other side is screwed into the nut N to fasten it, so that a fastening force can be applied to the holding part 11. This increases the surface pressure of the inner surface of the holding part 11, and the pipe P can be properly supported. For example, welding such as brazing is not required, and the work can be performed only by tightening the bolts B (first bolt B1, second bolt B2), so the work efficiency is good. The bolt operation can also be performed with an electric drill, in which case the work efficiency can be significantly improved. Moreover, since the pipe P is held by the surface pressure of the holding part 11, the pipe P does not oxidize or deform (for example, a dent occurs due to biting), and the reliability is high.

[0042] The tip bent portion 18 is a portion obtained by bending the tip of the fastening main body portion 17 on the side opposite to 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 continuing from the other tip bent portion 18 when fastened by the second bolt B2.

[0043] In this way, the tip bent portion 18 is provided on the opposite side of the holding portion 11 with respect to the fastening position (i.e., the position of the insertion hole 17a) of the fastening body portion 17 by the second bolt B2, and they abut against each other when fastened by the second bolt B2. This abutment causes the tip bent portion 18 to keep a constant distance between the fastening body portions 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 portion 18 and the fastening body portion 17 becomes a fulcrum, and the fastening body portions 17 facing each other at a constant distance can be more firmly clamped, and accordingly, a larger fastening force can be applied to the holding portion 11. In this way, the surface pressure by the inner surface of the holding portion 11 can be further increased, and the pipe P can be firmly supported.

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

[0045] In this embodiment, by providing such a tip bent portion 18 (proximity restriction portion 19), the pair of opposing fastening 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 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 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 parts 16, which are provided separately above and below and sandwich the base fixing part 13, abut against the base metal fitting 70 from above and below when the base fixing part 13 is fixed to the base metal fitting 70. In this embodiment, the tip bent parts 18 constituting the fastening action parts 16 abut against the connecting part 72 of the base metal fitting 70 from above and below in a state where they intersect (orthogonal in this example). With this configuration, the two fastening action parts 16 (tip bent parts 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 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 a 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 portion 16 exerted by fastening the second bolt B2 can be made less likely to be transmitted to the base fixing portion 13 side. In other words, the fastening force of the fastening action portion 16 exerted by fastening the second bolt B2 can be appropriately directed toward the holding portion 11 side. Therefore, the pipe P can be supported more firmly.

[0048] 2 and 3, the pipe support member 1 of this embodiment includes an auxiliary fixing member 30 that is detachable from the restraining member 10. The auxiliary fixing 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 auxiliary fixing 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 restraining member 10. The main body 31 is formed in a rectangular shape. An insertion hole 31a through which a bolt B (specifically, a first bolt B1) is inserted is formed in the main body 31. The main body 31 is disposed along the inner surface of each of the pair of plates that constitute the base fixing portion 13 in a state in which the fixing auxiliary member 30 is attached to the restraining member 10 (hereinafter simply referred to as the "attached state").

[0050] The sidewall portion 33 is formed to rise vertically from the rectangular main body portion 31 along three sides of the main body portion 31. The sidewall portion 33 has 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 an 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 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, the second portion 33B, and the third portion 33C of the side wall portion 33. The pressing protrusions 34 are formed so as 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 restraining member 10. In the attached state, the pressing protrusions 34 abut against the outer surfaces of each of the pair of plates that constitute 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 the pair of plates that constitute the base fixing portion 13 from both the inside and outside.

[0052] The locking claw portion 35 is formed so as 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 claw portion 35 is locked to the locking recesses 14 formed in the upper and lower side edges 13b of the pair of plate portions constituting the base fixing portion 13 (see FIG. 4). This makes it possible to prevent 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 claw portion 35 of the auxiliary fixing member 30 cooperate to function as a stopper portion 41 that prevents 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 intersecting with the second extending portion 38 (perpendicular to the tip in this example).

[0054] In this embodiment, the fixing auxiliary members 30 having the same shape are attached to the pair of plates constituting the base fixing portion 13. When the restraining member 10 is in the closed position, as shown in Figs. 4 to 6, the engaging claw portion 39 of one of the fixing auxiliary members 30 engages with the first extending portion 37 of the other fixing auxiliary member 30, and the engaging claw portion 39 of the other fixing auxiliary member 30 engages with the first extending portion 37 of one of the fixing auxiliary members 30. As a result, even if the operator releases the fixing auxiliary members 30, the restraining member 10 is kept in the closed position. In this embodiment, the first extending portion 37 and the engaging claw portion 39 provided separately on the two fixing auxiliary members 30 cooperate to function as a closed position holding portion 42 that holds the restraining member 10 in the closed position.

[0055] In this way, the fixing auxiliary member 30 is first used to temporarily fasten the base fixing part 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 fixing auxiliary member 30 will remain attached even after the first bolt B1 is fastened, and the main body 31 of the fixing auxiliary member 30 will be interposed between the connecting portion 72 of the base metal fitting 70 and the pair of plates constituting the base fixing portion 13 on both sides thereof. Secondly, the fixing auxiliary 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 separation width between the pair of plates constituting the base fixing portion 13, the separation width between the pair of fastening main body portions 17 of the fastening action portion 16 is ensured, and the fastening allowance of the fastening action portion 16 due to the fastening of the second bolt B2 is ensured.

[0057] Furthermore, in this embodiment, since the fixing auxiliary member 30 interposed between the base metal fitting 70 and the base fixing portion 13 is made of resin with low thermal conductivity, heat transfer from the base fixing portion 13 to the base metal fitting 70 is significantly suppressed. Thirdly, the fixing auxiliary 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, the heat (for example, cold heat) of the refrigerant flowing through the piping P may be transferred to the metal restraining member 10 via the piping P. Even in this case, the fixing auxiliary member 30 functions as a heat insulating material and can suppress the cold heat from being transferred 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 the pipe support member will be described with reference to the drawings. The pipe support member 1 of this embodiment differs from the first embodiment in the specific shape of the fastening portion 16 and the specific shape of the tip bending portion 18 that functions as the proximity restriction portion 19. The following describes the pipe support member 1 of this embodiment, focusing mainly on the differences from the first embodiment. Note that points that are not specifically stated are the same as those of the first embodiment, and the same reference numerals are used to omit detailed description.

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

[0060] A raised portion 17B that rises outward is formed in the center of the fastening 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 body 17. In this embodiment, an insertion hole 17a through which the second bolt B2 is inserted is formed in the center of the raised portion 17B.

[0061] As shown in Figs. 7 and 8, the tip bent portions 18, which are formed by bending the tip of the fastening body 17 on the opposite side to the holding portion 11, are in contact with each other in a crossing state. In this embodiment, the tip bent portion 18 has a substantially rectangular cutout recess 18a in the central region in the vertical direction. The tip bent portions 18 of the pair of opposing fastening action portions 16 are in contact with each other in a crossing state with the respective cutout recesses 18a facing each other. With this configuration, the fastening force caused by fastening the second bolt B2 can be applied evenly to the pair of fastening action portions 16. This, combined with the fact that the strength of the fastening body 17 itself is increased by forming the circular raised portion 17B, allows the fastening action portion 16 to stably support the pipe P with almost no deformation or deviation.

[0062] Other embodiments (1) In each of the above embodiments, the fastening portion 16 includes the fastening main body 17 and the tip bent portion 18, and the tip 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 part of the fastening main body 17 has a protrusion, and the protrusion functions as the proximity restricting portion 19. In this case, the protrusion as an example of the proximity restricting portion 19 may be formed integrally with the fastening main body 17 by, for example, drawing, or may be formed separately from the fastening main body 17 and fixed to the fastening main body 17.

[0063] (2) In each of the above embodiments, a configuration in which the fastening portion 16 has the proximity restriction portion 19 has been described as an example. However, the present invention is not limited to such a configuration, and the fastening portion 16 does not need to have the proximity restriction portion 19. In this case, the fastening portion 16 can be composed of 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 the 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. Also, 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 each of the above embodiments, a configuration has been described as an example in which the two fastening action portions 16 always 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. 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 abut against each other at all times. 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 abut against the base metal fitting 70 when the base metal fitting 70 is tilted slightly upward or downward.

[0066] (5) In each of the above embodiments, the holding portion 11 is integrally formed in a semi-open, generally 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 half-split bodies. The pair of half-split bodies may be formed as a hinge type connected to each other at a pivot part so as to be freely opened and closed, or may be formed as an assembly type having an engaging portion and an engaged 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 to protrude from 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 each of 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, a configuration has been described in which the pipe support member 1 includes the restraining member 10 and the auxiliary fixing member 30 that is detachable from the restraining member 10. However, the configuration is not limited to this, and the pipe support member 1 may be formed of only 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 in the above embodiments may be provided integrally with the restraining member 10.

[0070] (9) The configurations disclosed in the above-mentioned embodiments (including the above-mentioned embodiments and other embodiments; the same applies below) can be applied in combination with configurations disclosed in other embodiments, as long as no contradiction occurs. As for 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 parts 70 Base bracket S structure P piping B1 First bolt B2 Second bolt

Claims

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; A base fixing portion extends from the holding portion so as to face each other and is fixed to the base metal fitting by fastening a first bolt, the base fixing portion extending in a direction perpendicular to the axial direction of the pipe; A piping support member comprising: a tightening action portion extending opposite to the retaining portion and applying a tightening force to the retaining portion by fastening a second bolt separate from the first bolt.

2. the base fixing portion is provided extending from a central portion of the holding portion in the axial direction, 2. The pipe support member according to claim 1, wherein the pair of fastening portions are provided extending from both sides of the base fixing portion in the axial direction of the holding portion.

3. The pipe support member according to claim 2 , wherein the pair of fastening portions abut against the base metal fitting from both sides in the axial direction when the base fixing portion is fixed to the base metal fitting.

4. 4. The pipe support member according to claim 1, wherein an extension length of the fastening portion from the holding portion is shorter than an extension length of the base fixing portion from the holding portion.

5. A piping support member as described in any one of claims 1 to 3, wherein the retaining portion, the base fixing portion and the tightening action portion are integrally formed, and 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.

6. A pair of the base fixing parts facing each other are fixed to the base metal fitting with the base metal fitting sandwiched therebetween, The pipe support member according to claim 1 , wherein the fastening portion applies a fastening force to the holding portion in a state where two boundary portions between the holding portion and the pair of base fixing portions are spaced apart from each other.

7. The pipe support member according to claim 1 , wherein the base fixing portion is fixed to the base fitting at one location in a circumferential direction.

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