ส่วนรองรับท่อ

Abstract

DEPCT6816 / 07 / 2568 ส่วนรองรับท่อ(1)สำหรับการยึดท่อ(P)ที่แขวนจากตัวโครงสร้างรวมถึง:ส่วนยึดติด(2)ที่ ถูกยึดติดกับลำตัวที่มีรูปร่างแท่งสำหรับแขวน(B)ที่แขวนแนวตั้งจากตัวโครงสร้างและส่วนรองรับ (4)ที่ถูกจัดโครงแบบให้ยึดท่อ(P)ส่วนรองรับ(4)รวมถึง:ส่วนรองรับด้านบน(40)ที่ถูกจัดวางไป ทางด้านบนของท่อ(P)และส่วนรองรับด้านล่าง(50)ที่ถูกต่อพ่วงอย่างแกว่งได้กับส่วนรองรับ ด้านบน(40)ผ่านจุดแกนหมุนการแกว่ง(H)และถูกจัดโครงแบบให้รองรับท่อ(P)จากด้านล่างส่วน รองรับ(4)ถูกเปลี่ยนแปลงจากการจัดตำแหน่งเปิด,ซึ่งส่วนรองรับด้านบน(40)และส่วนรองรับ ด้านล่าง(50)ถูกเปิด,ไปเป็นการจัดตำแหน่งปิด,ซึ่งส่วนรองรับด้านบน(40)และส่วนรองรับด้านล่าง (50)ถูกปิด,ที่ตอบสนองต่อการยึดติดของท่อ(P)กับส่วนรองรับ(4);

Description

Piping support

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

[0002] Pipe supports are used to suspend and support pipes connected to water supply equipment, air conditioning equipment, etc., on structures such as slabs that form the ceiling of a building. An example of such a pipe support is disclosed in Japanese Patent Laid-Open Publication No. 2022-75177 (Patent Document 1).

[0003] The pipe support (pipe hanging fitting 1) of Patent Document 1 includes an attachment portion (turnbuckle 4) attached to a hanging rod-like body (hanging bolt 3) suspended from a structure (construction), and a support portion connected to the attachment portion to support the pipe (pipe 2). The support portion also has a pair of divided supports (band pieces 8a, 8b) swingably connected via a swing fulcrum (hinge 5). One swing fulcrum is provided at a lower portion of the support portion, and the pair of divided supports are placed in a closed position after being attached to the pipe and are connected at the top to the attachment portion using fastening members (bolt 6, nut 7).

[0004] In such a configuration, when supporting piping using a piping support, it is necessary to remove the fastening members, open the pair of split supports, close the pair of split supports while supporting the piping, and then reattach and fasten the fastening members, leaving room for improvement in terms of workability.

[0005] Japanese Patent Application Laid-Open No. 2022-75177

[0006] It is desirable to develop a pipe support that is easy to install.

[0007] The piping support device of the present invention is a piping support device for suspending and supporting piping on a structure, and comprises: an attachment portion attached to a hanging rod-like body hanging from the structure; and a support portion connected to the attachment portion to support the piping, wherein the support portion has an upper support portion arranged above the piping, and a lower support portion that is swingably connected to the upper support portion via a swing fulcrum and supports the piping from below, and the lower support portion has a support main body portion and an extension portion that extends from the support main body portion beyond the swing fulcrum to a position overlapping with the upper support portion, and changes from an open position in which the upper support portion and the lower support portion are open to a closed position in which the upper support portion and the lower support portion are closed in conjunction with the attachment of the piping.

[0008] According to this configuration, the support section is made up of an upper support section and a lower support section that support the pipe from above and below, and these are connected so that they can swing. Therefore, the pipe can be attached while maintaining the connection between the mounting section and the upper support section. Moreover, because the lower support section has an extension section that extends beyond the swing fulcrum to a position where it overlaps with the upper support section, when the pipe is attached, the outer surface of the pipe presses against the extension section, automatically changing from an open position to a closed position, making it easy to support the pipe. These features combined greatly improve the ease of installation when suspending and supporting pipes on a structure.

[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 aspect, it is preferable to include a position maintaining mechanism that maintains the closed position.

[0011] According to this configuration, after the piping is supported with one touch as described above, the supported state can be maintained appropriately.

[0012] In one aspect, the lower support portion is preferably swingably connected to both ends of the upper support portion via the swing fulcrum.

[0013] With this configuration, the pair of lower support parts swing like double doors relative to the upper support part, allowing for a compact overall configuration while ensuring a wide opening for installing piping.

[0014] In one aspect, it is preferable that the support body portion is heavier than the extension portion.

[0015] With this configuration, the open position can be appropriately maintained by the weight of the support body until the piping is attached.

[0016] In one aspect, the swing fulcrum is preferably provided at a position shifted from the lowest point of the support portion.

[0017] According to this configuration, it is possible to appropriately realize a configuration in which the lower support portion changes from the open position to the closed position in conjunction with the attachment of the pipe.

[0018] In one aspect, it is preferable that the upper support portion is composed of a pair of left and right divided bodies, and that the pair of divided bodies constituting the upper support portion are connected to each other so as not to rotate relative to each other.

[0019] With this configuration, the pair of left and right segments that make up the upper support part sandwich the mounting part, making it easy to connect them. Because the pair of segments are connected so that they cannot rotate relative to each other, the entire support part, including these segments and the lower support part, can change position between the open position and the closed position without twisting. Therefore, the piping can be properly supported in the closed position.

[0020] In one aspect, the posture maintaining mechanism has an engaging portion provided on the support main body portion and an engaged portion with which the engaging portion engages, and it is preferable that an engagement guide portion that guides the engagement between the engaging portion and the engaged portion is provided on the tip side of the engaged portion.

[0021] With this configuration, the posture maintaining mechanism can be appropriately configured by combining the engaging portion provided on the support body with the engaged portion with which it engages. By providing the engagement guide portion on the tip side of the engaged portion, it is possible to guide the engaging portion to the engaged portion and promote their engagement.

[0022] 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.

[0023] A front view of a pipe support structure using a pipe support according to an embodiment. An exploded perspective view of the pipe support. A perspective view of a support section. A cross-sectional view of the vicinity of the posture maintaining mechanism. A side view of the vicinity of the posture maintaining mechanism. A schematic view showing the state of the pipe support during construction. A side view of a pipe support according to another embodiment. A side view of a pipe support according to another embodiment.

[0024] An embodiment of a pipe support will be described with reference to the drawings. As shown in Fig. 1, a pipe support 1 of this embodiment is used to suspend and support a pipe P from a structure S. The pipe support 1 is attached to a suspension bolt B that hangs down from the structure S, such as a slab that constitutes a ceiling, and suspends and supports the pipe P in a horizontal position.

[0025] The suspension bolts B are arranged along the installation direction of the pipe P. A plurality of suspension bolts B are installed at predetermined intervals at multiple locations along the installation direction of the pipe P, and the pipe P is suspended and supported over the entire installation direction by the pipe supports 1 attached to each suspension bolt B. The suspension bolts B may be fully threaded bolts that are threaded over the entire length, or double-threaded bolts that are threaded only at both ends. In this embodiment, the suspension bolts B correspond to the "suspension rod-shaped body."

[0026] 1 to 3, the pipe support 1 includes a mounting portion 2 that is attached to a suspension bolt B, and a support portion 4 that supports the pipe P. The mounting portion 2 and the support portion 4 are connected by a fastening member 7. The fastening member 7 includes a fastening bolt 71 and a fastening nut 72 that is threaded onto the fastening bolt 71.

[0027] The mounting portion 2 is a portion for attaching the support portion 4 to a suspension bolt B suspended from the structure S. In this embodiment, the mounting portion 2 is configured by a turnbuckle 20. The turnbuckle 20 has a mounting plate 21 and a pair of connecting plates 22 extending downward from the mounting plate 21.

[0028] The mounting plate 21 is a portion that is attached to the suspension bolt B. The mounting plate 21 is formed in a flat plate shape. The mounting plate 21 is also formed in a rectangular shape (specifically, a square shape) in a plan view. An insertion hole 21a is formed through the center of the mounting plate 21. A flanged nut N is inserted into this insertion hole 21a from the inside. The inner diameter of the insertion hole 21a is smaller than the flange of the flanged nut N, and the mounting portion 2 is attached to the suspension bolt B in a form that is supported by the flange portion of the flanged nut N that screws onto the suspension bolt B.

[0029] The connecting plates 22 are components that are connected to the support portion 4. In this embodiment, a pair of connecting plates 22 are provided so as to extend downward from a pair of opposite sides of the rectangular mounting plate 21. Each of the pair of connecting plates 22 is bent at two locations to form a gentle crank shape so that the distance between their lower ends (the side opposite the mounting plate 21) is narrower than the distance between their upper ends (the side toward the mounting plate 21). An insertion hole 22a is formed near the lower end of the connecting plate 22. A shaft 71B of a fastening bolt 71 that constitutes the fastening member 7 is inserted into this insertion hole 22a.

[0030] The support portion 4 is a portion connected to the mounting portion 2 to support the pipe P. In this embodiment, the support portion 4 is mainly divided into upper and lower portions from a functional standpoint, and has an upper support portion 40 disposed above the pipe P and a lower support portion 50 that supports the pipe P from below. The upper support portion 40 and the lower support portion 50 are connected to each other via a swing fulcrum H so as to be swingable.

[0031] The upper support part 40 is disposed above the pipe P. The upper support part 40 covers the pipe P from above. The upper support part 40 of this embodiment has a structure divided into left and right halves, and is made up of a pair of left and right divided bodies, a first divided body 41 and a second divided body 46.

[0032] 2 and 3, the first divided body 41 has a flat portion 42, a curved portion 43, and a loop portion 44. These are integrally formed by, for example, press working using a strip-shaped steel plate.

[0033] The flat plate portion 42 is a flat plate-shaped portion located on the upper side of the first divided body 41, and is the portion that is connected to the mounting portion 2. The flat plate portion 42 is formed in a rectangular shape (specifically, a rectangular shape). The flat plate portion 42 is arranged in the up-down direction. An insertion hole 42a is formed near the upper end of the flat plate portion 42. A shaft portion 71B of a fastening bolt 71 that constitutes the fastening member 7 is inserted into this insertion hole 42a.

[0034] Protrusions 42B are formed around the insertion hole 42a in the flat plate portion 42. The protrusions 42B are formed to protrude outward. The protrusions 42B are provided in pairs, and the pair of protrusions 42B is provided so as to face each other across the insertion hole 42a. The distance between the pair of protrusions 42B is the same as or slightly wider than the width across flats of the head 71A of the fastening bolt 71 that constitutes the fastening member 7. The pair of protrusions 42B engage with two opposing surfaces of the head 71A of the fastening bolt 71, preventing rotation (co-rotation) of the fastening bolt 71 when the fastening member 7 is fastened.

[0035] A locking hole 42c is formed near the lower end of the flat plate portion 42. The locking hole 42c is formed in a horizontally elongated rectangular shape. The tip of a standing piece 47C formed on the second divided body 46 is inserted into and locked into this locking hole 42c.

[0036] The curved portion 43 extends in an arc shape from the lower end of the flat portion 42. In the present embodiment, the curved portion 43 is formed in a quarter-circular arc shape with a central angle of approximately 90° when viewed from the front.

[0037] The loop portion 44 is provided at the lower end of the curved portion 43, continuing from the curved portion 43. The loop portion 44 is looped on the outer surface side of the curved portion 43. One loop portion 44 is provided in the central portion of the lower end of the curved portion 43, excluding the portions on both sides in the width direction. Two loop portions 54 of the first lower support portion 51 are arranged on both sides of the loop portion 44.

[0038] The second divided body 46 has a flat portion 47, a curved portion 48, and a loop portion 49. These are integrally formed by using a strip-shaped steel plate by, for example, press working.

[0039] The flat plate portion 47 is a flat plate-shaped portion located on the upper side of the second division 46, and is a portion that is connected to the mounting portion 2 together with the flat plate portion 42 of the first division 41. The flat plate portion 47 is formed in a rectangular shape (specifically, a rectangular shape). The flat plate portion 47 is arranged in the up-down direction. An insertion hole 47a is formed near the upper end of the flat plate portion 47. The shank 71B of the fastening bolt 71 that constitutes the fastening member 7 is inserted into this insertion hole 47a.

[0040] The insertion hole 47a is connected to a vertically extending elongated hole formed in the center of the flat plate portion 47. This elongated hole is formed when cutting and forming an upright piece 47C at the lower end of the flat plate portion 47, and its upper end is connected to and integrated with the insertion hole 47a. The upright piece 47C is bent so as to rise inward (toward the first division 41) relative to the flat plate portion 47. The cross-sectional shape of the upright piece 47C is horizontally elongated and rectangular. The tip of the upright piece 47C is inserted into a locking hole 42c formed in the flat plate portion 42 of the first division 41 and locks onto the inner surface of the locking hole 42c.

[0041] The horizontally elongated rectangular upright piece 47C is engaged with the horizontally elongated rectangular engaging hole 42c, thereby preventing rotation of the first divided body 41 and the second divided body 46. In this way, the first divided body 41 and the second divided body 46, which are a pair of divided bodies that make up the upper support part 40, are connected to each other so as not to rotate relative to each other.

[0042] The curved portion 48 extends in an arc shape from the lower end of the flat portion 47. In the present embodiment, the curved portion 48 is formed in a quarter-circular arc shape with a central angle of approximately 90° when viewed from the front.

[0043] The loop portion 49 is provided at the lower end of the curved portion 48, continuing from the curved portion 48. The loop portion 49 is looped on the outer surface side of the curved portion 48. One loop portion 49 is provided in the central portion of the lower end of the curved portion 48, excluding the portions on both sides in the width direction. Two loop portions 59 of the second lower support portion 56 are arranged on both sides of the loop portion 49.

[0044] The lower support part 50 is swingably connected to the upper support part 40. With this swing, the support part 4 can change its position between an open position in which the upper support part 40 and the lower support part 50 are open, and a closed position in which the upper support part 40 and the lower support part 50 are closed. In the closed position, the lower support part 50 is disposed below the pipe P. In the closed position, the lower support part 50 is disposed below the pipe P and supports the pipe P from below.

[0045] In this embodiment, lower support portions 50 are swingably connected to both ends of the upper support portion 40. A first lower support portion 51 constituting the lower support portion 50 is swingably connected to a loop portion 44 provided at the lower end of a first divisional body 41 constituting the upper support portion 40, and a second lower support portion 56 constituting the lower support portion 50 is swingably connected to a loop portion 49 provided at the lower end of a second divisional body 46.

[0046] 2 and 3, the first lower support portion 51 has a support main body portion 52, a loop portion 54, and an extension portion 55. These are integrally formed by, for example, press working using a strip-shaped steel plate.

[0047] The support body portion 52 is a main portion of the first lower support portion 51 that supports the pipe P. The support body portion 52 is formed to be curved in an arc shape. The support body portion 52 supports the pipe P in a state in which it abuts against the pipe P from below.

[0048] In this embodiment, the support body 52 includes an expanded diameter portion 53. The expanded diameter portion 53 is curved in an arc shape with a larger diameter than the other portions of the support body 52 and is provided on the lower end side of the support body 52. ​​The expanded diameter portion 53 is offset outward by approximately one plate thickness from the other portions of the support body 52, thereby forming the large diameter arc shape. A through hole 53a is formed in the expanded diameter portion 53. An engaging claw 58 provided on the second lower support portion 56 engages with this through hole 53a. In this embodiment, the through hole 53a corresponds to the "engaged portion."

[0049] The tip end of the expanded diameter portion 53 (opposite the connection portion with the first segment 41) serves as an engagement guide portion 53B. The engagement guide portion 53B is located closer to the tip end than the through hole 53a in the support body 52. ​​The engagement guide portion 53B is gradually inclined outward toward the tip end. The engagement guide portion 53B guides the engagement claw 58 provided on the second lower support portion 56 to smoothly engage with the through hole 53a when the support portion 4 changes position from the open position to the closed position.

[0050] The loop portion 54 is provided at the upper end of the support main body 52, continuing from the support main body 52. ​​The loop portion 54 is looped on the outer surface side of the support main body 52. ​​Two loop portions 54 are provided at the upper end of the support main body 52, separated into two portions on both sides in the width direction. The loop portion 44 of the first segment 41 of the upper support part 40 is disposed between the pair of loop portions 54. A pivot member 8 is inserted between the two loop portions 54 of the first lower support part 51 and the loop portion 44 of the first segment 41. In this embodiment, a rivet is used as the pivot member 8. This pivot member 8 serves as a fulcrum (swing fulcrum H) for the swing movement of the first segment 41 of the upper support part 40 and the first lower support part 51.

[0051] The extension portion 55 extends upward from the support main body portion 52. The extension portion 55 extends from the support main body portion 52, passing over the loop portion 54 and the swing fulcrum H, to a position where it overlaps with the upper support portion 40 (first segment 41 in this example). The extension portion 55 is provided in the center in the width direction, between the two loop portions 54. The extension portion 55 is curved in an arc shape, and is disposed along the inner surface of the curved portion 43 of the first segment 41 in the closed position. The extension portion 55 is smaller and lighter than the support main body portion 52.

[0052] The second lower support portion 56 has a support main body portion 57, a loop portion 59, and an extension portion 60. These are integrally formed by using a strip-shaped steel plate by, for example, press working.

[0053] The support body portion 57 is a main portion of the second lower support portion 56 that supports the pipe P. The support body portion 57 is formed to be curved in an arc shape. The support body portion 57 supports the pipe P in a state in which it abuts against the pipe P from below.

[0054] In this embodiment, the support body portion 57 includes an engagement claw 58. The engagement claw 58 is provided on the lower end side of the support body portion 57. The engagement claw 58 is formed to protrude further from the tip of the support body portion 57. As shown in FIGS. 4 and 5 , the engagement claw 58 has an extending piece 58A and an erecting piece 58B. The extending piece 58A extends from the tip of the support body portion 57 along the arcuate surface of the support body portion 57. A pair of erecting pieces 58B is provided, and the pair of erecting pieces 58B are erected downward from both side edges of the extending piece 58A. The engagement claw 58 engages with a through hole 53a formed in the first lower support portion 51. In this embodiment, the engagement claw 58 corresponds to the "engaging portion."

[0055] The engagement claws 58 engage with the through holes 53a formed in the first lower support portion 51, thereby stably maintaining the closed position of the support portion 4. More specifically, the side edges of the pair of standing pieces 58B constituting the engagement claws 58 engage with the inner edges of the through holes 53a, thereby preventing them from coming loose. This stably maintains the closed position of the support portion 4. In this embodiment, the engagement claws 58 and the through holes 53a engage with each other to form a position maintaining mechanism R. Note that when it is desired to change the position of the support portion 4 from the closed position to the open position, the operator can change the position by pressing down the engagement guide portions 53B to release the engagement between the engagement claws 58 and the through holes 53a.

[0056] As shown in FIG. 2 , the loop portion 59 is provided at the upper end of the support body 57, continuing from the support body 57. The loop portion 59 is looped on the outer surface of the support body 57. Two loop portions 59 are provided, separated into two portions on both sides of the upper end of the support body 57 in the width direction. The loop portion 49 of the second segment 46 of the upper support part 40 is disposed between the pair of loop portions 59. The pivot member 8 is inserted between the two loop portions 59 of the second lower support part 56 and the loop portion 49 of the second segment 46. As described above, a rivet is used as the pivot member 8. This pivot member 8 serves as a pivot point H for the second segment 46 of the upper support part 40 and the second lower support part 56 to swing.

[0057] The extension portion 60 extends upward from the support main body portion 57. The extension portion 60 extends from the support main body portion 57, passing over the loop portion 59 and the swing fulcrum H, to a position where it overlaps with the upper support portion 40 (in this example, the second divided body 46). The extension portion 60 is provided in the center in the width direction, between the two loop portions 59. The extension portion 60 is curved in an arc shape, and is disposed along the inner surface of the curved portion 48 of the second divided body 46 in the closed position. The extension portion 60 is smaller and lighter than the support main body portion 57.

[0058] In this embodiment, the swing fulcrum H (pivot member 8) is provided at the center position in the up-down direction of the support part 4. More specifically, two swing fulcrums H (pivot members 8) are provided at both left and right ends of the support part 4. When the posture maintaining mechanism R is not functioning (i.e., the engaging claws 58 are not engaged with the through holes 53a) and no external force is acting, the first lower support part 51 and the second lower support part 56 are each suspended and supported around the swing fulcrum H (pivot member 8) as an axis.

[0059] 6, the support body 52 of the first lower support portion 51 and the support body 57 of the second lower support portion 56 are each located outside the swing fulcrum H (pivot member 8). In addition, the extension portion 55 of the first lower support portion 51 and the extension portion 60 of the second lower support portion 56 are each located inside the swing fulcrum H (pivot member 8).

[0060] To support a pipe P by suspending it with the pipe support device 1 of this embodiment, the mounting portion 2 is attached to the suspension bolt B suspended from the structure S via the flanged nut N, and the support portion 4 in the open position is attached to the mounting portion 2 using the fastening member 7, and the pipe P is then attached from below. As the pipe P is lifted, the outer surface of the pipe P comes into contact with the two extension portions 55, 60, and the extension portions 55, 60 are lifted upward. As a result, the first lower support portion 51 rotates clockwise in FIG. 6 about the swing fulcrum H (pivot member 8) as its axis, and the second lower support portion 56 rotates counterclockwise about the swing fulcrum H (pivot member 8) as its axis.

[0061] Then, the support portion 4 assumes a closed position, and the engaging claws 58 of the second lower support portion 56 engage with the through holes 53a of the first lower support portion 51, maintaining the closed position. In this way, the support portion 4 changes from the open position to the closed position in conjunction with the attachment of the pipe P, and the closed position is maintained, which greatly improves the ease of installation when supporting the pipe P by suspending it on the structure S.

[0062] Other Embodiments (1) In the above embodiment, a configuration in which one flanged nut N is used to attach the mounting portion 2 to the suspension bolt B suspended from the structure S has been described as an example. However, the present invention is not limited to such a configuration, and the mounting portion 2 may be attached using, for example, a double nut, one on top and one on bottom.

[0063] (2) In the above embodiment, an example was described in which the attachment portion 2 was configured by the turn buckle 20. However, the present invention is not limited to such a configuration, and the attachment portion 2 may be configured by, for example, an L-shaped bent plate or the like.

[0064] (3) In the above embodiment, an example has been described in which the upper support portion 40 of the support unit 4 is configured with a pair of divided bodies, the first divided body 41 and the second divided body 46. However, the present invention is not limited to such a configuration, and the entire upper support portion 40 may be configured as a single unit.

[0065] (4) In the above embodiment, a configuration in which a rivet is used as the pivot member 8 has been described as an example. However, the present invention is not limited to such a configuration, and any other member that can swingably connect the upper support portion 40 and the lower support portion 50, such as a pin with a retaining structure or a loosely fastened bolt and nut, can also be used as the pivot member 8.

[0066] (5) In the above embodiment, an example has been described in which two swing fulcrums H are provided at both the left and right ends of the support part 4. However, the present invention is not limited to such a configuration. For example, as shown in FIG. 7 , one of the two swing fulcrums H may be provided above the center position of the support part 4 in the vertical direction. Also, both of the two swing fulcrums H may be provided above the center position of the support part 4 in the vertical direction. Alternatively, at least one of the two swing fulcrums H may be provided below the center position of the support part 4 in the vertical direction (excluding the lowest point). In this way, it is sufficient that the swing fulcrum H is provided at a position shifted from the lowest point of the support part 4.

[0067] (6) In the above embodiment, a configuration has been described as an example in which the lower support portions 50 (first lower support portion 51, second lower support portion 56) are swingably connected to both ends of the upper support portion 40. However, the present invention is not limited to such a configuration. For example, as shown in FIG. 8 , only one lower support portion 50 may be swingably connected to one end of the upper support portion 40. In this case, the lower support portion 50 is configured to have a support main body portion 62, an engaging claw 63 (an example of an "engaging portion"), a loop portion 64, and an extension portion 65. These correspond to the support main body portion 57, the engaging claw 58, the loop portion 59, and the extension portion 60 of the second lower support portion 56 in the above embodiment, respectively. A through-hole 43a (an example of an "engaged portion") is formed in the first segment 41 of the upper support portion 40, and the through-hole 43a and the engaging claw 63 that engages therewith constitute the posture maintaining mechanism R.

[0068] (7) In the above embodiment, the configuration in which the lower support portion 50 has the engagement guide portion 53B has been described as an example. However, the present invention is not limited to such a configuration, and the engagement guide portion 53B does not necessarily have to be provided on the lower support portion 50.

[0069] (8) In the above embodiment, an example has been described in which the position maintaining mechanism R is configured by the engaging claws 58 and the through holes 53a that engage with each other. However, the position maintaining mechanism R is not limited to such a configuration, and may have other structures as long as it can stably maintain the closed position of the support part 4. For example, a combination of a protrusion and an engaging claw that engage with each other, or a combination of a notch and an engaging claw that engage with each other, can also be used as the position maintaining mechanism R. Furthermore, the position maintaining mechanism R does not necessarily have to be provided.

[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 examples in all respects and can be appropriately modified within the scope of the present disclosure.

[0071] REFERENCE SIGNS LIST 1 Pipe support 2 Mounting portion 4 Support portion 40 Upper support portion 41 First divided body (divided body) 43a Through hole (engaged portion) 46 Second divided body (divided body) 50 Lower support portion 51 First lower support portion 52 Support main body portion 53a Through hole (engaged portion) 53B Engagement guide portion 55 Extension portion 56 Second lower support portion 57 Support main body portion 58 Engagement claw (engagement portion) 60 Extension portion 62 Support main body portion 63 Engagement claw (engagement portion) 65 Extension portion H Swing fulcrum R Attitude maintenance mechanism S Structure B Suspension bolt (suspension rod-shaped body) P Pipe

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