Pipe support member

Abstract

To provide a pipe support member that offers good work efficiency during installation and can uniformly and appropriately support pipes regardless of the worker's skill level. [Solution] A pipe support member (1) that is connected to a base fitting (70) fixed to a structure (S) and supports a pipe (P) comprises a holding part (11) that holds the pipe (P), a base fixing part (13) that is fixed to the base fitting (70) by fastening a first bolt (B1), and a tightening part (16) that applies a tightening force to the holding part (11) by fastening a second bolt (B2) which is different from the first bolt (B1).

Description

Technical Field

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

Background Art

[0002] In air-conditioning equipment installed in buildings such as buildings, for example, refrigerant pipes 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 pipe expands axially due to thermal expansion, and there is a risk that the load corresponding to this expansion amount is applied to the bending portion (so-called elbow portion) on the end side of the refrigerant pipe. Particularly when the refrigerant pipe is arranged in the vertical direction, since the load due to the weight of the refrigerant pipe is also applied, there is a risk that a large load is applied to the above-mentioned bending portion. In response to such concerns, a part of the axial direction of the refrigerant pipe is fixed using a pipe support member connected to a base metal fitting fixed to the structure, and axial movement at the fixed portion is prevented. By dispersing the elongation amount of the pipe member due to thermal expansion to both sides in the axial direction centering on this fixed portion, the load on the bending portion on the lowermost end side is reduced.

[0003] An example of the pipe support member is disclosed in Japanese Patent Application Laid-Open No. 2018-25290 (Patent Document 1). This pipe support member includes a pair of clamp members 71 having slit-shaped engagement holes 73, and engages the engagement holes 73 with the flange portion 31 of the mounting member 1 fixed to the outer peripheral surface of the pipe member P to support the pipe member P. The fixing of the mounting member 1 to the pipe member P is performed by welding means such as brazing.

[0004] However, welding work such as brazing requires a certain level of skill, and there is a possibility that the construction quality varies depending on the skill of the operator. In addition, it is common for a plurality of pipe members P to be arranged in a building, and the number of fixing positions of the mounting member 1 to the pipe member P increases throughout the building to be constructed. Performing all of them by welding means requires a great deal of labor and has the problem of poor work efficiency.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] Japanese Patent Publication No. 2018-25290 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] There is a need for a pipe support member that offers good work efficiency during installation and can uniformly and appropriately support pipes regardless of the worker's skill level. [Means for solving the problem]

[0007] The pipe support member according to the present invention is A pipe support member that is connected to a base fitting fixed to a structure and supports the piping, A holding portion that surrounds the outer surface of the aforementioned 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 fitting by fastening the first bolt, The device includes a tightening action portion that extends from the holding portion so as to face each other and applies a tightening force to the holding portion by fastening a second bolt, which is different from the first bolt.

[0008] With this configuration, as the base fixing part is fixed to the base fitting, the holding part surrounds the outer surface of the pipe and directly holds the pipe. For example, there is no need to weld a member with a flange to the pipe, and the work can be done by bolting alone, resulting in high work efficiency. Also, since it is done by bolting alone, there is almost no variation in the skill of the worker, so the uniformity of the work can be improved. Furthermore, since there is a tightening part separate from the base fixing part that is fixed to the base fitting, in addition to the normal holding of the pipe by the holding part when the first bolt is tightened, an additional tightening force can be applied to the holding part by tightening the second bolt. This increases the surface pressure on the inner surface of the holding part, allowing the pipe to be properly supported.

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

[0010] As one aspect, In the case of the clamping action portion, it is preferable that the clamping force is applied to the holding portion while the two boundary portions between the holding portion and the pair of clamping action portions are spaced apart from each other.

[0011] With this configuration, the second bolt can be fastened while leaving a certain amount of clearance between the pair of fastening parts, allowing sufficient tightening force to be applied to the holding part. Therefore, the piping can be supported stably.

[0012] As one aspect, Preferably, the fastening mechanism has a fastening body portion into which the second bolt is fastened, and also has a proximity restricting portion on the opposite side of the fastening position by the second bolt on the fastening body portion from the holding portion, which comes into contact with each other when fastened by the second bolt to maintain a certain distance between the fastening body portions.

[0013] With this configuration, when the second bolt is tightened, the proximity restricting part acts as a fulcrum, allowing the opposing clamping body parts, separated by a certain distance, to be gripped more firmly, and consequently, a greater clamping force can be applied to the holding part. This further increases the surface pressure on the inner surface of the holding part, allowing the piping to be firmly supported.

[0014] As one aspect, Preferably, the proximity restricting portion is composed of a bent tip portion formed by bending the tip of the clamping body portion.

[0015] With this configuration, a simple structure that only involves bending the tip of the clamping body allows for the proper creation of a proximity restriction section that maintains a certain distance between clamping bodies.

[0016] As one aspect, It is preferable that the respective tip bent portions constituting the pair of tightening action portions abut against each other in a crossed state.

[0017] According to this configuration, the tightening force due to the fastening of the second bolt can be evenly applied to the pair of tightening action portions. As a result, the pipe can be stably supported with little deformation or deviation of the tightening action portions.

[0018] As one aspect, It is preferable that the holding portion, the base fixing portion, and the tightening action portion are integrally formed, and a notch portion is provided between the base fixing portion and the tightening action portion to make it difficult for the tightening force due to the fastening of the second bolt to be transmitted to the base fixing portion side.

[0019] According to this configuration, for example, by punching and bending from a single metal plate, the pipe support member can be easily formed. In addition, the notch portion provided between the base fixing portion and the tightening action portion can appropriately direct the tightening force due to the fastening of the second bolt toward the holding portion side. Therefore, the pipe can be firmly supported.

[0020] As one aspect, The tightening action portion is provided adjacent to at least one of the upper and lower sides of the base fixing portion, and it is preferable that the tightening action portion abuts against the base fitting in a state where the base fixing portion is fixed to the base fitting.

[0021] According to this configuration, the tightening action portion provided adjacent to at least one of the upper and lower sides of the base fixing portion abuts against the base fitting and functions as a strength receiver for the base fitting. Therefore, the pipe can be stably supported.

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

[0023] According to this configuration, the operator can perform the fastening operation with the first bolt with both hands free while temporarily fixing the base fixing portion to the base fitting by the fixing auxiliary member. Therefore, the workability can be improved.

[0024] As one aspect, The fixing auxiliary member is preferably made of resin and also serves as a spacer for preventing the base fitting and the base fixing portion from coming into direct contact with each other.

[0025] According to this configuration, for example, the fixing auxiliary member for temporary fixing can be formed relatively easily by injection molding or the like. In addition, since a resin-made fixing auxiliary member having a low thermal conductivity is interposed between the base fitting and the base fixing portion, it is possible to suppress dew condensation on the surface of the base fitting.

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

Brief Description of the Drawings

[0027] [Figure 1] Perspective view of a pipe fixing structure using the pipe support member of the first embodiment [Figure 2] Exploded perspective view of the pipe support member [Figure 3] Perspective view showing the usage method of the pipe support member [Figure 4] Front view of the pipe fixing structure [Figure 5] Plan view of the pipe fixing structure [Figure 6] Side view of the pipe fixing structure [Figure 7] Perspective view of a pipe fixing structure using the pipe support member of the second embodiment [Figure 8] Side view of the pipe fixing structure

Modes for Carrying Out the Invention

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

[0029] In the following explanation, the terms "axial direction," "circumferential direction," and "radial direction" may be used to describe the shape and positional relationships of each component. These terms are defined relative to the pipe P, which is the object supported by the pipe support member 1. Specifically, "axial direction" refers to the axial direction (longitudinal direction) of the pipe P, "circumferential direction" refers to the direction that circles around the pipe P, and "radial direction" refers to the direction that radiates outward from the axis of the pipe P. Unless otherwise specified, all references to these directions in the description of each part of the pipe support member 1 refer to the direction when the pipe P is actually being held.

[0030] The piping support member 1 of this embodiment is used for piping P that is routed from an outdoor unit of an air conditioning system installed on the roof of a building such as a building to multiple indoor units installed inside. Examples of piping P include copper refrigerant piping.

[0031] Figure 1 shows an example of a pipe fixing structure that uses the pipe support member 1 of this embodiment to fix a predetermined point on a pipe P arranged vertically (up and down) to a structure S. This pipe fixing structure is used to prevent the pipe P from moving relative to the structure S in the axial direction at its fixing point. The structure S is, for example, the frame or exterior wall of a building.

[0032] A base fitting 70 is fixed to the structure S. The base fitting 70 may be directly fixed to the structure S, or it may be indirectly fixed via other members (for example, intervening members such as brackets). The base fitting 70 is made of metal, and is constructed using, for example, hot-rolled mild steel plate. As shown in Figures 1 and 2, the base fitting 70 is formed in a bent plate shape. The base fitting 70 includes a mounting base portion 71 that can be applied in surface contact with the structure S (or intervening member), and a connecting portion 72 that extends intersecting (orthogonal in this example) the mounting base portion 71. Through holes 71a and 72a are formed in the mounting base portion 71 and the connecting portion 72, respectively, through which bolts B are inserted.

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

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

[0035] The retaining portion 11 is the part for holding the pipe P. The retaining portion 11 is formed in a substantially cylindrical shape that is not completely closed. The inner diameter of the retaining portion 11 is set to be equal to or approximately equal to the outer diameter of the pipe P. As shown in Figure 3, in the state before use, the retaining portion 11 is not shaped to follow a perfect circle when viewed in the axial direction, but is somewhat expanded (open position). The retaining portion 11 can be attached to the pipe P from the radially outside through this expanded opening. Then, by applying an external force to close the expanded retaining portion 11 and deforming it to the closed position, and further by fastening the first bolt B1 and the second bolt B2 as described later, the retaining portion 11 surrounds the outer surface of the pipe P and holds the pipe P.

[0036] As shown in Figures 1 and 2, through holes 11a are formed in the holding portion 11. The through holes 11a are formed in the portion of the holding portion 11 opposite to the base fixing portion 13 and the tightening portion 16. In this embodiment, multiple through holes 11a are formed along the axial direction (arranged vertically). The through holes 11a function as a bending strength adjustment portion 12 for adjusting the magnitude of the bending strength of the restraining member 10 (specifically, the holding portion 11 that constitutes the restraining member 10).

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

[0038] Furthermore, the upper and lower side edges 13b of the pair of plate portions constituting the base fixing portion 13 each have a locking recess 14 that is recessed toward the center line of the base fixing portion 13. The locking claw portion 35 of the fixing auxiliary member 30 is locked into this locking recess 14 (see Figure 4).

[0039] The clamping portion 16 is the part that applies a clamping force to the holding portion 11. The clamping portion 16 is composed of a pair of plate portions that extend from the holding portion 11 so as to face each other. In this embodiment, the pair of plate portions constituting the clamping portion 16 extend radially from both ends in the circumferential direction of the substantially cylindrical holding portion 11, which is not completely closed. The extension length of the clamping portion 16 from the holding portion 11 is shorter than the extension length of the base fixing portion 13. In this embodiment, the two clamping portions 16 are provided separated above and below the base fixing portion 13.

[0040] The fastening portion 16 has a fastening body portion 17 and a bent tip portion 18. The fastening body portion 17 is the main part of the fastening portion 16. In this embodiment, the fastening body portion 17 is formed in a substantially square shape. The fastening 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 body portion 17 is the part of the fastening portion 16 to which the second bolt B2 is fastened. In this embodiment, the second bolt B2 is fastened at a position closer to the holding portion 11 than the first bolt B1.

[0041] The shaft of the second bolt B2 is inserted through the insertion hole 17a of the fastening body 17, and the other end is screwed onto the nut N to fasten it, thereby applying a tightening force to the holding part 11. This increases the surface pressure on the inner surface of the holding part 11, allowing the pipe P to be properly supported. For example, welding such as brazing is unnecessary, and the installation can be done simply by tightening the bolts B (first bolt B1, second bolt B2), resulting in high work efficiency. The bolt operation can also be performed with an electric drill, in which case work efficiency can be greatly improved. Moreover, since the pipe P is held by the surface pressure of the holding part 11, the pipe P will not oxidize or deform (for example, a depression will occur due to biting), resulting in high reliability.

[0042] The tip bent portion 18 is the part of the fastening body portion 17 that is bent on the side opposite to the holding portion 11. The tip bent portion 18 is bent at approximately a right angle to the fastening body portion 17. The tip bent portions 18 are bent from opposing fastening body portions 17 so that they face each other, and these tip bent portions 18 overlap each other. The tip of one tip bent portion 18 is configured to come into contact with the fastening body portion 17 that is continuous with the other tip bent portion 18 when fastening with the second bolt B2.

[0043] Thus, the tip bend portion 18 is located on the opposite side of the holding portion 11 from the fastening position of the second bolt B2 in the fastening body portion 17 (i.e., the position of the insertion hole 17a), and comes into contact with each other when fastened with the second bolt B2. This contact causes the tip bend portion 18 to maintain a certain distance between the fastening body portions 17 when fastened with the second bolt B2. As a result, when the second bolt B2 is fastened, the contact point between the tip bend portion 18 and the fastening body portion 17 acts as a fulcrum, allowing the fastening body portions 17 facing each other at a certain distance to be gripped more firmly, and consequently, a greater tightening 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, and the pipe P can be firmly supported.

[0044] In this embodiment, the bent tip portion 18 functions as a proximity restricting portion 19 that comes into contact with each other when fastened by the second bolt B2, maintaining a certain distance between the fastening body portions 17.

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

[0046] As shown in Figure 4, the two tightening parts 16, which are separated above and below the base fixing part 13, contact the base fitting 70 from above and below when the base fixing part 13 is fixed to the base fitting 70. In this embodiment, the bent tip parts 18 that constitute the tightening parts 16 contact the connecting part 72 of the base fitting 70 from above and below in a manner that intersects (orthogonal in this example). With this configuration, the two tightening parts 16 (bent tip parts 18) function as load-bearing supports for the base fitting 70, thereby enabling stable support of the piping P.

[0047] In this embodiment, a notch 21 is provided between the base fixing portion 13 and each of the two tightening portions 16. This notch 21 is formed to extend radially, continuously 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 tightening portions 16 can be separated, making it difficult for the tightening force of the tightening portions 16 exerted by fastening the second bolt B2 to be transmitted to the base fixing portion 13. In other words, the tightening force of the tightening portions 16 exerted by fastening the second bolt B2 can be appropriately directed towards the holding portion 11. Therefore, the piping P can be supported even more firmly.

[0048] As shown in Figures 2 and 3, the pipe support member 1 of this embodiment is equipped with a fixing auxiliary member 30 that is detachably attached to the restraining member 10. The fixing auxiliary member 30 comprises a main body portion 31, a side wall portion 33, a pressing projection 34, a locking claw portion 35, a first extension portion 37, a second extension portion 38, and an engaging claw portion 39. These are integrally formed. The fixing auxiliary member 30 is made of resin, and is constructed using, for example, polypropylene or polyacetal.

[0049] The main body portion 31 is formed in a flat plate shape along the base fixing portion 13 of the restraining member 10. The main body portion 31 is also formed in a rectangular shape. The main body portion 31 has an insertion hole 31a through which a bolt B (specifically, the first bolt B1) is inserted. The main body portion 31 is positioned along the inner surfaces 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 restraining member 10 (hereinafter simply referred to as the "attached state").

[0050] The side wall portion 33 is formed to rise vertically from the main body portion 31 along three sides of the rectangular main body portion 31. The side wall 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, respectively. When installed, the first portion 33A abuts against the edge 13c of the base fixing portion 13 opposite to the holding portion 11. When installed, 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 retaining projections 34 are formed in the center of the first portion 33A, the second portion 33B, and the third portion 33C of the side wall portion 33. The retaining projections 34 are formed to protrude toward the center from the main body portion 31 at a distance equal to the thickness of the base fixing portion 13 of the restraining member 10. When installed, the retaining projections 34 abut against the outer surfaces of the pair of plates that constitute the base fixing portion 13. As a result, when installed, the main body portion 31 and the retaining projections 34 cooperate to press down on 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 to extend continuously from the second portion 33B and the third portion 33C of the side wall portion 33. When installed, the locking claw portion 35 engages with the locking recess 14 formed on the upper and lower side edges 13b of the pair of plate portions constituting the base fixing portion 13 (see Figure 4). This prevents the fixing auxiliary member 30 attached to the restraining member 10 from coming off. In this embodiment, the locking recess 14 of the base fixing portion 13 and the locking claw portion 35 of the fixing auxiliary member 30 cooperate to function as a retaining portion 41 that prevents the fixing auxiliary member 30 attached to the restraining member 10 from coming off.

[0053] The first extension portion 37 extends outward from the second portion 33B of the side wall portion 33. The second extension portion 38 extends outward from the third portion 33C of the side wall portion 33. The direction in which the first extension portion 37 extends and the direction in which the second extension portion 38 extends are opposite to each other. The engaging claw portion 39 is provided at the tip of the second extension portion 38, intersecting (orthogonal in this example) the second extension portion 38.

[0054] In this embodiment, a pair of fixing auxiliary members 30 of the same shape are attached to each of the plate bodies constituting the base fixing portion 13. When the restraint member 10 is in the closed position, as shown in Figures 4 to 6, the engaging claw portion 39 of one fixing auxiliary member 30 engages with the first extension 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 extension portion 37 of the other fixing auxiliary member 30. As a result, even if the operator releases their hand, the restraint member 10 will maintain the closed position. In this embodiment, the first extension portions 37 and engaging claw portions 39, which are provided separately on the two fixing auxiliary members 30, cooperate to function as a closed position holding portion 42 that holds the restraint member 10 in the closed position.

[0055] Thus, the fixing support member 30 is primarily used to temporarily fasten the base fixing part 13 to the base fitting 70 before fastening with the first bolt B1. Therefore, the worker can 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 fitting 70 and the pair of plates that constitute the base fixing portions 13 on both sides thereof. Secondly, the fixing auxiliary member 30 is used as a spacer to prevent the base fitting 70 and the base fixing portion 13 from coming into direct contact. By ensuring the distance between the pair of plates that constitute the base fixing portion 13, the distance between the pair of fastening main body portions 17 of the fastening portion 16 is ensured, thereby securing the fastening allowance of the fastening portion 16 when the second bolt B2 is fastened.

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

[0058] [Second Embodiment] A second embodiment of the pipe support member will be described with reference to the drawings. In this embodiment, the pipe support member 1 differs from the first embodiment in the specific shape of the tightening portion 16 and the specific shape of the tip bent portion 18 which functions as a proximity restricting portion 19. Below, the differences between this embodiment and the first embodiment will be mainly described. Unless otherwise specified, the parts are the same as in the first embodiment and are denoted by the same reference numerals, and detailed explanations will be omitted.

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

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

[0061] As shown in Figures 7 and 8, the bent tip portion 18 of the fastening body portion 17, which is bent at the end opposite to the holding portion 11, is in contact with each other in a crossing manner. In this embodiment, the bent tip portion 18 has a substantially rectangular notched recess 18a in its central region in the vertical direction. The bent tip portions 18 of the opposing pair of fastening action portions 16 are in contact with each other in a crossing manner, with their respective notched recesses 18a facing each other. With this configuration, the fastening force from the fastening of the second bolt B2 can be applied evenly to the pair of fastening action portions 16. As a result, in conjunction with the increased strength of the fastening body portion 17 itself due to the formation of the circular raised portion 17B, the pipe P can be stably supported with almost no deformation or bias of the fastening action portion 16.

[0062] [Other Embodiments] (1) In each of the above embodiments, the tightening action part 16 is described as having a tightening body part 17 and a tip bending part 18, and the tip bending part 18 functions as a proximity restricting part 19. However, the invention is not limited to such a configuration, and for example, a part of the tightening body part 17 may be formed to have a projection, and the projection may be configured to function as a proximity restricting part 19. In this case, the projection as an example of a proximity restricting part 19 may be formed integrally with the tightening body part 17 by, for example, drawing or the like, or it may be formed separately from the tightening body part 17 and fixed to the tightening body part 17.

[0063] (2) In each of the above embodiments, a configuration in which the tightening action part 16 has a proximity restricting part 19 has been described as an example. However, the configuration is not limited to such a configuration, and the tightening action part 16 does not have to have a proximity restricting part 19. In this case, the tightening action part 16 can be composed of a pair of tightening body parts 17 that are arranged opposite each other at a predetermined distance apart at two boundary portions, at least between the holding part 11 and the pair of tightening action parts 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 tightening portions 16 has been described as an example. However, the configuration is not limited to such a configuration, and the notch 21 may not be provided. Alternatively, instead of the notch 21, a means to reduce the transmission of the tightening force of the tightening portion 16 exerted by fastening the second bolt B2 to the base fixing portion 13 (tightening force transmission reduction means) may be provided, such as a simple cut or an easily deformable portion.

[0065] (4) In each of the above embodiments, a configuration was described as in which the base fixing portion 13 is fixed to the base fitting 70 and the two tightening portions 16 are in constant contact with the base fitting 70 from above and below. However, the configuration is not limited to such a configuration, and the tightening portions 16 and the base fitting 70 do not necessarily have to be in constant contact. In this case, for example, the tightening portions 16 and the base fitting 70 may be arranged with a small gap between them, and the tightening portions 16 may come into immediate contact with the base fitting 70 when tilted slightly upward or downward.

[0066] (5) In each of the above embodiments, a configuration in which the holding portion 11 is integrally formed in a half-open, substantially cylindrical shape has been described as an example. However, the configuration is not limited to such a configuration, and the holding portion 11 may be composed of a pair of semi-cylindrical half-parts. These pair of half-parts may be configured as a hinge type connected at a pivot so as to be openable and closable, 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 means for preventing axial displacement of the pipe P while it is being held. The displacement prevention means may consist of, for example, a locking projection formed protruding from the inner surface of the holding portion 11, or it may be achieved by roughening the inner surface of the holding portion 11 (for example, by sandblasting).

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

[0069] (8) In each of the above embodiments, the pipe support member 1 was described as having a configuration comprising a restraining member 10 and a fixing auxiliary member 30 that is detachably attached to the restraining member 10. However, the pipe support member 1 is not limited to such a configuration, and may consist only of the restraining member 10 without the fixing auxiliary member 30. In this case, a part having the same function as the closed position holding part 42 provided on the fixing auxiliary member 30 in the above embodiments may be integrally provided on the restraining member 10.

[0070] (9) The configurations disclosed in each of 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, insofar as they do not cause a conflict. With respect to other configurations, the embodiments disclosed herein are illustrative in all respects and can be modified as appropriate without departing from the spirit of the disclosure. [Explanation of symbols]

[0071] 1. Pipe support member 11 Holding part 13 Base fixing part 16. Tightening part 17. Clamping body 18 Tip bent part 19 Proximity Control Section 21 Notch 30 Fixing support member 70 Base fittings S structure P piping B1 First bolt B2 Second bolt

Claims

[Claim 1] A pipe support member that is connected to a base fitting fixed to a structure and supports the piping, A holding portion that surrounds the outer surface of the aforementioned 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 fitting by fastening the first bolt, A pipe support member comprising: a tightening action portion extending from the holding portion so as to face each other, and which applies a tightening force to the holding portion by fastening a second bolt, which is different from the first bolt.

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