Holding tool and holding structure

Abstract

To provide a holding tool that enables a flow path structural member to be held more stably with respect to a wall surface.SOLUTION: A holding tool is configured to include: a fixing portion that is secured to a wall surface; a holding tool main body provided with a pair of to-be-attached portions facing each other; and a holder having a pair of attachment portions that is formed on both ends of a holding portion and that is individually attached to the pair of to-be-attached portions. The pair of attachment portions has a pair of locking claws that protrudes outward in mutually opposite directions. The to-be-attached portions forms a pair of groove portions which extends continuously along the flow path direction and which includes through-holes that open toward one another. Each groove portion has an introduction opening configured to guide the locking claws into the groove portion when the holder moves in the flow path direction, and a locking portion that engages the locking claws within the groove portion. Furthermore, the holding tool main body includes a displacement restricting portion, which is positioned to face the respective ends of the holding portion in a state where the attachment portions are joined to the to-be-attached portions, and which restricts displacement of the locking claws in a manner that would cause their detachment through the through-holes of the groove portions.SELECTED DRAWING: Figure 12

Description

[Technical Field]

[0001] The present invention relates to a holder for holding a flow path component member, and a holding structure in which a flow path component member is held. [Background technology]

[0002] Conventionally, various protective covers have been used to cover and protect flow path components, such as fluid pipes, installed on the wall surfaces of structures. The flow path components are installed within the protective cover while being held against the wall surface by a holder. Examples of flow path components include two resin fluid pipes, one for cold water and one for hot water, connected to a hot and cold water mixer faucet installed in a bathroom. Because fluid pipes are generally installed at room temperature, when hot water is supplied, the fluid pipe for hot water supply undergoes thermal linear expansion, causing it to swing radially or stretch axially, placing a load on the end of the fluid pipe and potentially causing damage to the flow path arrangement structure. Various protective cover devices have been proposed to address the problem of linear expansion of fluid pipes.

[0003] For example, Patent Document 1 discloses a protective cover device for housing a pipe fitting, which is configured to block linear expansion of the fluid pipe due to heat during hot water supply by using a pipe fitting disposed midway along the fluid pipe to prevent adverse effects. In the following paragraphs, the reference numerals of Patent Document 1 are indicated in parentheses. In the holder of Patent Document 1, two fluid pipes (P1, P2) are connected by a straight pipe fitting (A1) disposed on a base (V1) of a pipe fitting housing protective cover (C1). First and second movement restrictors (R1, R2) are attached to the base (V1) so as to straddle the fluid pipes (P1, P2) and are adjacent to both ends of the straight pipe fitting (A1) on the base (V1). The first and second movement restrictors (R1, R2) surround the two fluid pipes (P1, P2) and function as a holder by being attached to the base (V1) fixed to a wall surface. The first movement restrictor (R1) is assembled to the base (V1) so as to straddle the fluid pipe (P1), and a pair of tip ends of a restrictor body (41) having a U-shaped saddle shape in a front view are provided with attachment portions (42) that are engaged with first engaged portions (13) of the base (V1) and fitted into the first attachment plate portion (19) of the base (V1) to be integrally attached to the first attachment plate portion (19). In particular, as shown in Fig. 10 of Patent Document 1, the gap between a pair of fitting plate portions (44a, 44b) provided at a predetermined interval along the longitudinal direction of a pair of parallel portions (41a) of the restrictor body body (41) forms a fitting groove (45) that is fitted into the first attachment plate portion (19) of the base (V1) in an inserted state. The U-shaped restrictor body (41) is elastically deformable in a direction narrowing its opening width to enable assembly to the base (V1). The basic structure of the second movement restrictor (R2) is the same as that of the first movement restrictor (R1). One end face of the restrictor body (41) of each movement restrictor (R1, R2) forms an abutment surface (43) that can abut against the end of the straight pipe joint (A1) when assembled to the base (V1). When the moving end of the pipe joint (A1) abuts against the abutment surface (43) of either the first or second movement restrictor (R1, R2) attached to the base (V1), movement beyond this abutment surface is restricted (prevented).As a result, the linear expansion of each of the two fluid pipes (P1, P2) connected via the pipe joint (A1) is blocked at the pipe joint (A1), and the linear expansion of one of the fluid pipes (P1, P2) does not affect the other fluid pipe (P1, P2). Also, according to Figure 21 of Patent Document 1, the retainer can be applied to an elbow-shaped pipe joint (A3) placed at a corner (B) of a building W. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2022-143029 Summary of the Invention [Problem to be solved by the invention]

[0005] The holder in Patent Document 1 installs a movement restrictor (retainer) attached to a base of a protective cover in axial contact with the end of a pipe fitting of a fluid pipe. This prevents the linear expansion of the fluid pipe from adversely affecting the holder. However, the movement of a fluid pipe due to thermal expansion includes not only an axial component but also a radial component. For example, a linearly expanded fluid pipe may lose its direction and deform so that its end faces a direction other than the axial direction. Thus, when the fluid pipe attempts to deform in a direction away from the base (e.g., diagonally away from the wall), the movement restrictor, pushed up from the base in the direction away from the base, deforms in a direction narrowing the width of its tip. This may cause the base's attachment plate to slip out of the fitting groove between the fitting plate portions of the deformed restrictor body and ride up and become dislodged from the base's bottom plate. In particular, when the flow path component is disposed at a corner, the deformation direction due to linear expansion of the intersecting fluid pipes becomes more complex, making it easier for the fluid pipes to be released from their hold by the movement restrictor. As a result, the fluid pipes in the unretained state move or swing freely inside the protective cover, causing the base and the lid to separate, making it difficult to maintain a stable arrangement.

[0006] The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a holder and a holding structure that can more stably hold a flow path component against a wall surface. [Means for solving the problem]

[0007] The holder according to claim 1 is a holder for holding a flow path component member that constitutes a flow path extending in a flow path direction, a holder body having a fixing portion to be fixed to a wall surface and a pair of opposing attachment portions; a holder having a holding portion extending in a circumferential direction of the flow path constituent member, and a pair of attachment portions formed at both ends of the holding portion and attached to the pair of attachment portions, respectively, and surrounding and holding the flow path constituent member in a state attached to the holder main body, The pair of attachment portions have a pair of locking claws that protrude outward in opposite directions, The pair of attachment portions are continuous along the flow path direction and form a pair of groove portions having through holes that open opposite to each other, the groove portion is provided with an inlet opening that opens one end side of the through-hole in the flow path direction and introduces the locking claw into the groove portion by movement of the holder in the flow path direction, and a locking portion that locks the locking claw introduced through the inlet into the groove portion, The holder body is characterized by having a displacement control portion that is positioned opposite each end of the holding portion when the pair of attachment portions are attached to the pair of attachment receiving portions, and that controls the displacement of each of the locking claws so that they come off through the through holes of each of the groove portions.

[0008] The holder described in claim 2 is characterized in that, in the holder described in claim 1, the displacement regulating portion is formed on an upright wall that stands in a vertical direction away from the wall surface, and the tip of the upright wall is at a height position that is farther away from the wall surface than the engaging portion.

[0009] The holder described in claim 3 is characterized in that, in the holder described in claim 2, the holder body is provided with an outer wall that is positioned outside the holding portion in a width direction that is along the wall surface and perpendicular to the flow path direction, and that is erected to a position higher than the erect wall.

[0010] The holder according to claim 4 is the holder according to any one of claims 1 to 3, wherein the holder body includes an excessive movement restriction portion that restricts excessive movement of the holder in the attachment direction when the locking claw is introduced into the groove portion through the introduction port; The device is characterized by comprising a separation movement restricting portion that allows movement of the holder in the attachment direction, while restricting movement of the holder in the separation direction opposite to the attachment direction.

[0011] The holding structure according to claim 5 is a holding structure in which a flow path component member including a pipe joint and a fluid pipe connected to the pipe joint and arranged along a wall surface is held against the wall surface by a holder, The holder is a holder body having a fixing portion fixed to a wall surface and a pair of opposing attachment portions; a holder having a holding portion extending in a circumferential direction of the flow path constituent member, and a pair of attachment portions formed at both ends of the holding portion and attached to the pair of attachment portions, respectively, and surrounding and holding the flow path constituent member in a state attached to the holder body, the holder is installed so that the holder body and the holder main body surround the fluid pipe beside the pipe joint, The pair of attachment portions have a pair of locking claws that protrude outward in opposite directions, the pair of attachment portions are configured to form a pair of groove portions each having a through hole that is continuous along the flow path direction and opens facing each other, and the locking claws are configured to be attached to the attachment portion by being disposed in the groove portion through the through hole, The holder body is characterized in that it is provided with a displacement control portion that is positioned opposite each end of the holding portion when the pair of attachment portions are attached to the pair of attached portions, and that controls the pair of engagement claws from displacing in a direction toward each other due to deformation of the holding portion, so as to prevent each engagement claw from detaching through the through holes of each groove portion.

[0012] The holding structure according to claim 6 is the holding structure according to claim 5, wherein at least a portion of the fluid pipe is disposed in a fluid pipe portion protective cover, and at least a portion of the pipe joint is disposed in a joint portion protective cover connected to the fluid pipe portion protective cover, The retaining device main body is fixed directly or indirectly to a wall surface outside the joint portion protective cover, and with the fluid pipe held by the retaining device, the entire retaining body and the retaining device main body are contained within the fluid pipe portion protective cover.

[0013] A flow path arrangement structure according to a seventh aspect of the present invention is the holding structure according to the fifth aspect, wherein at least a portion of the fluid pipe is arranged in a fluid pipe portion protective cover, and at least a portion of the pipe joint is arranged in a joint portion protective cover connected to the fluid pipe portion protective cover, The retaining device is characterized in that the retaining body is fixed directly or indirectly to a wall surface inside the joint portion protective cover, and the entire retaining body and the retaining body are housed within the joint portion protective cover while the fluid pipe is held by the retaining device. [Effects of the Invention]

[0014] According to the holder described in claim 1, a pair of mounting portions provided on the holder main body form a pair of grooves that are continuous along the flow path direction and have through holes that open facing each other. The grooves are provided with an inlet that opens one end of the through hole in the flow path direction and introduces a locking claw into the groove by moving the holder in the flow path direction, and a locking portion that locks the locking claw introduced through the inlet in the groove. That is, when the holder main body and the holder surround and hold a flow path component in the circumferential direction, the holding portion surrounds a portion of the flow path component (e.g., a fluid pipe or a pipe joint), and the pair of locking claws of the holder are introduced into the grooves through the inlet and positioned so as to pass through the through holes, so that the locking claws are locked in the grooves by the locking portions, and the pair of mounting portions of the holder can be mounted to the pair of mounting portions of the holder main body. The holder body is provided with displacement restriction portions that are positioned opposite each end of the holder portion when the pair of attachment portions are attached to the pair of attachment receiving portions, and that restrict the displacement of each locking claw so that it will separate through the through-holes of each groove. That is, even if the flow path component moves due to thermal expansion or the like and a force is applied to the holder while the holder is holding the flow path component, the displacement restriction portions act on the ends of the holder portion to restrict the displacement of the locking claws, thereby preventing the locking claws from separating through the through-holes of each groove. This makes it possible to stably maintain the retention of the flow path component by the holder. Therefore, the holder of the present invention allows for more stable retention of the flow path component against a wall surface.

[0015] According to the holder described in claim 2, in addition to the effect of the invention of claim 1, the tip of the vertical wall forming the displacement regulating portion is located at a height position farther away from the wall surface than the locking portion, so that it can more reliably abut against the locking claw and prevent the locking claw from coming out of the groove portion.

[0016] According to the holder of claim 3, in addition to the effect of the invention of claim 2, an outer wall is provided on the holder body, which is located outside the holding portion and stands higher than the standing wall. By being located outside the holding portion, the outer wall can guide the sliding movement of the holder when attaching the holder to the holder body. Furthermore, the outer wall limits excessive distortion of the holder outward in the radial direction, thereby enabling the holder to be stably attached to the holder body.

[0017] According to the holder of claim 4, in addition to the effects of any one of claims 1 to 3, the excessive movement restricting portion restricts excessive movement of the holder beyond the holder main body in the attachment direction, and the separation movement restricting portion allows movement of the holder in the attachment direction while restricting movement of the holder in the separation direction opposite to the attachment direction. In other words, the excessive movement restricting portion and the separation movement restricting portion work together to position and maintain the holder in the appropriate position on the holder main body in the attachment direction.

[0018] According to a retention structure described in claim 5, a flow path component including a pipe fitting forming a curved flow path and a fluid pipe connected to the pipe fitting and arranged along the wall surface is retained against a wall surface by a retainer. The retainer is installed so that the fluid pipe is surrounded by a retaining portion and a retainer main body on either side of the pipe fitting. A pair of attachment portions provided on the retainer main body form a pair of grooves having through holes that are continuous along the flow path direction and open facing each other. That is, in the retention structure, the retaining portion surrounds a portion of the flow path component (e.g., a fluid pipe or a pipe fitting), and a pair of locking claws of the retainer are respectively disposed in the pair of grooves so as to pass through the through holes. The pair of attachment portions of the retainer are attached to the pair of attachment portions of the retainer main body, so that the retainer main body and the retainer surround and retain the flow path component in the circumferential direction. The holder body is provided with displacement restriction portions that are positioned opposite each end of the holder when the pair of attachment portions are attached to the pair of attachment receiving portions, and that restrict the displacement of each locking claw so that it will separate through the through-holes of each groove. In other words, in this holding structure, even if the flow path component moves due to thermal expansion or the like and a force is applied to the holder, the displacement restriction portions act on the ends of the holder to restrict the displacement of the locking claws, thereby effectively preventing the locking claws from separating through the through-holes of each groove. This allows the holder to stably maintain the hold of the flow path component. Therefore, the holding structure of the present invention allows the holder to more stably hold the flow path component against the wall surface.

[0019] According to the holding structure of claim 6, in addition to the effect of the invention of claim 5, by disposing the fluid pipe inside the fluid pipe protective cover and disposing the pipe joint inside the joint protective cover, the protective cover can protect the flow path components from the outside. The holder main body is fixed to the wall surface outside the joint protective cover, and with the fluid pipe held by the holder, the holder and the holder main body are entirely housed inside the fluid pipe protective cover. This protects the holder from being exposed to the outside by the fluid pipe protective cover and prevents the holder from being exposed, which would detract from the aesthetic appearance.

[0020] According to the holding structure of claim 7, in addition to the effect of the invention of claim 5, by disposing the fluid pipe inside the fluid pipe protective cover and disposing the pipe joint inside the joint protective cover, the protective cover can protect the flow path components from the outside. Then, the holder main body is fixed to the wall surface inside the joint protective cover, and with the fluid pipe held by the holder, the holder and the holder main body are entirely housed inside the joint protective cover. This protects the holder from being exposed to the outside by the joint protective cover, and prevents the holder from being exposed, which would detract from the aesthetic appearance. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic exploded view of a protective cover device according to one embodiment (first embodiment) of the present invention. [Figure 2] 2 is a partially enlarged perspective view showing the protective cover of the protective cover device of FIG. 1. FIG. [Figure 3] 2A and 2B are a schematic perspective view, seen from the front and rear, respectively, showing a holder of the present embodiment that constitutes the protective cover device of FIG. 1; [Figure 4] (a) Front view, (b) top view, (c) side view, (d) back view, and (e) bottom view of the holder in Figure 3 . [Figure 5] FIG. 4 is an exploded perspective view of the holder of FIG. 3 . [Figure 6] AA cross-sectional view of the holder in FIG. 4(b). [Figure 7] BB cross section of the holder in Figure 4(c). [Figure 8] FIG. 1 is a schematic perspective view showing a flow path arrangement structure according to an embodiment of the present invention. [Figure 9] FIG. 9 is a partially enlarged perspective view of the vicinity of the holder of the flow path arrangement structure of FIG. 8. [Figure 10] FIG. 9 is a plan view of the flow path arrangement structure of FIG. 8 as seen from the front wall side. [Figure 11] 9 is a bottom view of the flow path arrangement structure of FIG. 8 as seen from the wall surface side. [Figure 12] 11 is a cross-sectional view of the flow path arrangement structure shown in FIG. 10 . [Figure 13] 9 is a schematic diagram showing linear expansion in the longitudinal direction of the second fluid pipe section toward the bent section in the flow path arrangement structure of FIG. 8. [Figure 14] 14 is a cross-sectional schematic view of the flow path arrangement structure of FIG. 13. [Figure 15] 10 is a schematic perspective view of a protective cover device (for an outside corner) according to another embodiment of the present invention; FIG. [Figure 16] 16 is a schematic perspective view showing a flow path arrangement structure using the protective cover device of FIG. 15. [Figure 17] FIG. 6 is a schematic exploded view of a protective cover device according to another embodiment (second embodiment) of the present invention. [Figure 18] 18A and 18B are a schematic perspective view, seen from the front and rear, respectively, showing a holder of this embodiment that constitutes the protective cover device of FIG. 17. [Figure 19] (a) Front view, (b) top view, (c) side view, (d) back view, and (e) bottom view of the holder of Figure 18. [Figure 20] FIG. 19 is an exploded perspective view of the retainer of FIG. 18. [Figure 21] DD cross section of the holder in FIG. 19(b). [Figure 22] FIG. 1 is a schematic perspective view showing a flow path arrangement structure according to an embodiment of the present invention. [Figure 23] 23 is a partially enlarged perspective view of the vicinity of the holder of the flow path arrangement structure of FIG. 22. FIG. [Figure 24] 23 is a plan view of the flow path arrangement structure of FIG. 22 as seen from the front wall side. [Figure 25] 23 is a bottom view of the flow path arrangement structure of FIG. 22 as seen from the wall surface side. [Figure 26] 25 is an E-E cross-sectional view of the flow path arrangement structure of FIG. 24. [Figure 27] 23 is a schematic diagram showing linear expansion in the longitudinal direction of the second fluid pipe section toward the bent section in the flow path arrangement structure of FIG. 22. FIG. [Figure 28] 28 is a cross-sectional schematic diagram of the flow path arrangement structure of FIG. 27. [Figure 29] FIG. 10 is a schematic exploded perspective view showing a modified example of the protective cover device of the present invention. [Figure 30] FIG. 10 is a schematic exploded perspective view showing a modified example of the protective cover device of the present invention. [Figure 31]FIG. 10 is a schematic perspective view showing a modified example of the flow path arrangement structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] An embodiment of the present invention will be described below with reference to the drawings. Note that the shapes of the figures referred to in the following description are conceptual or schematic diagrams for explaining preferred shapes and dimensions, and the dimensional ratios and the like do not necessarily correspond to the actual dimensional ratios. In other words, the present invention is not limited to the dimensional ratios shown in the drawings. Furthermore, the up, down, left, and right directions in the present invention are merely concepts indicating relative positions, and needless to say, these directions can be interchanged and applied. Furthermore, in this specification, the direction moving away from a wall surface may be referred to as the up and down direction, regardless of whether the wall surface is a horizontal or vertical surface.

[0023] A protective cover device 100 according to one embodiment of the present invention is a device that is disposed inside and protects a flow path component 11 installed on the wall surface of a structure. The flow path arrangement structure 10 of the present embodiment is a structure in which a flow path component 11 having a flow path that bends relative to the structure is disposed. In this embodiment, the flow path component 11 includes at least a pipe joint 13 that forms a bent portion that forms the bent flow path, a first fluid pipe 14 that forms a first fluid pipe portion extending from a first end of the bent portion along a predetermined piping path, and a second fluid pipe 15 that forms a second fluid pipe portion extending from a second end of the bent portion along the predetermined piping path, thereby forming a fluid flow path. Here, the pipe joint 13 corresponds to the bent portion that forms the bent flow path of the flow path component 11, and the first fluid pipe 14 and the second fluid pipe 15 correspond to the fluid pipe portions that form the straight flow path of the flow path component 11. This flow path component 11 forms a bent flow path to a hot and cold water mixing valve installed in a bathroom that supplies cold water and hot water. The first fluid pipe 14 and the second fluid pipe 15 are straight resin fluid pipes used for at least supplying hot water, and undergo linear expansion in the pipe axis direction due to heat when supplying hot water. In contrast, the protective cover device 100 of this embodiment is configured to prevent adverse effects on the protective cover device 100 and / or the flow path arrangement structure 10 due to linear expansion due to heat when supplying hot water to the fluid pipes. The protective cover device 100 of this embodiment and its components will be described below with reference to Figures 1 to 7.

[0024] FIG. 1 is a schematic exploded perspective view of a protective cover device 100 according to one embodiment of the present invention. As shown in FIG. 1, the protective cover device 100 according to one embodiment of the present invention includes a joint protective cover 110 that defines an internal installation space for arranging a bent portion of a flow path component 11; a fluid pipe protective cover 120 that is connected to an end of the joint protective cover 110 and that installs and protects first and second fluid pipes; and holders 130 that are respectively installed at the first and second ends of the bent portion (or the ends of the first and second fluid pipes). In this protective cover device 100, the front surface of the holder 130 is installed facing the joint protective cover 110. Note that in this embodiment, each component is made of a synthetic resin material; however, the present invention is not limited to this, and any material, such as metal, may be selected.

[0025] First, the joint protection cover 110 and the fluid pipe protection cover 120 of this embodiment will be described with reference to Fig. 2. Fig. 2 is a schematic perspective view showing the joint protection cover 110 and the fluid pipe protection cover 120.

[0026] As shown in FIG. 2, the joint protective cover 110 corresponds to the bend of the L-shaped pipe joint 13 and includes an L-shaped base 111 fixed to the wall surface of a structure, and an L-shaped lid 112 attached to the base 111. The joint protective cover 110 defines an installation space therein for arranging the pipe joint 13 (bent portion) when the base 111 and the lid 112 are attached to each other. The joint protective cover 110 is configured to determine the installation position of the pipe joint 13 on the wall surface. In other words, the joint protective cover 110 has a joint positioning portion. This joint positioning portion is an inner wall surface or a rib of the joint protective cover 110. On the other hand, the fluid pipe protective cover 120 corresponds to the straight fluid pipes 14, 15 and includes a base member 121 fixed to the wall surface of a structure, and a cover member 122 attached to the base member 121. The fluid pipe protective cover 120 forms a piping path therein for arranging the fluid pipes 14, 15 (fluid pipe sections) when the base member 121 and the cover member 122 are assembled together. The fluid pipe protective cover 120 is configured to determine the placement positions of the fluid pipes 14, 15 on the wall surface. The pipe fitting 13 and the fluid pipes 14, 15 are preferably held by the fitting protective cover 110 and the fluid pipe protective cover 120 so that the pipe axes are aligned with the radial center of the placement space.

[0027] Each end of the joint protective cover 110 is configured to be able to couple the end of the fluid pipe protective cover 120 without any gaps. In particular, each end of the base 111 is provided with a connection protrusion 114 that protrudes axially from each end. On the other hand, each end of the base member 121 is provided with a connection recess 123 into which the connection protrusion 114 can be fitted. By inserting the connection protrusion 114 of the base 111 into the connection recess 123 of the base member 121, the joint protective cover 110 and the fluid pipe protective cover 120 can be coupled without any gaps while being aligned in the axial direction. In this embodiment, as described below, a holder 130 is provided between the base 111 and the base member 121. The connection protrusion 114 and the connection recess 123 can also function as coupled parts to which the holder 130 is coupled.

[0028] Furthermore, fixing holes 115 for fixing the base 111 to a wall surface with screws are drilled in the bottom wall of the base 111 of the joint protection cover 110 at the center and both end portions of the bent portion. Furthermore, a plurality of connecting pieces 116 for connecting the lid body 112 are formed on the outer periphery of the base 111 of the joint protection cover 110. The lid body 112 can be fitted to the base 111 via the plurality of connecting pieces 116. The connecting pieces 116 at the end of the base 111 form abutment steps 117 (connected portions) for positioning and arranging a different type of holder 230 (see FIG. 18, etc.).

[0029] The base member 121 of the fluid pipe protective cover 120 is formed with a pair of outer wall portions 124 that stand upright from both widthwise ends of the bottom wall, and a pair of inner wall portions 125 that stand upright from the widthwise inner sides of the pair of outer wall portions 124 of the bottom wall. The outer wall portions 124 have a height sufficient to cover the side surfaces of the inserted fluid pipes 14, 15. On the other hand, the inner wall portions 125 are shorter than the outer wall portions 124 and extend so as to support the undersides of the inserted fluid pipes 14, 15. The outer wall portions 124 and the inner wall portions 125 hold the fluid pipes 14, 15 from three directions and function as positioning portions that determine the axial positions of the pipe fittings 13 and / or the fluid pipes 14, 15. Note that instead of or in addition to the fluid pipe portion protective cover 120, the joint portion protective cover 110 may be formed with a positioning portion that holds the pipe joint 13 and determines the axial position of the pipe joint 13 and / or the fluid pipes 14, 15. Also, an engaging piece 126 is formed to protrude from the side edge of the base member 121, and can be connected to an engaged piece 127 formed on the inner surface of the side wall of the cover member 122. The base member 121 can be fixed to a wall surface by passing a screw through its bottom wall.

[0030] In this embodiment, the lengths of the base 111 and the lid 112 of the joint protective cover 110 in the flow path direction are approximately the same. On the other hand, the length of the cover member 122 is longer than the length of the base member 121 of the fluid pipe protective cover 120 so that the holder 130 arranged between the base 111 of the joint protective cover 110 and the base member 121 of the fluid pipe protective cover 120 can be covered. However, in the present invention, the lengths of the base member 121 and the cover member 122 of the fluid pipe protective cover 120 in the flow path direction may be approximately the same, and the length of the lid 112 may be longer than the length of the base 111 of the joint protective cover 110.

[0031] Next, the holder 130 of this embodiment will be described with reference to Figures 3 to 7. Figures 3(a) and 3(b) are perspective views of the holder 130 as seen from the front and rear, respectively. Figures 4(a) to 4(e) are front, plan, side, rear, and bottom views of the holder 130. Figure 5 is an exploded perspective view of the holder 130. Figure 6 is a cross-sectional view of the holder 130 taken along line AA. Figure 7 is a cross-sectional view of the holder 130 taken along line BB.

[0032] The holder 130 holds the flow path forming member 11 that forms the flow path extending in the flow path direction, and is installed at least at the first end of the bent portion (the first end 13a of the pipe fitting 13 or the end of the first fluid pipe 14), and is configured to restrict movement of the bent portion and the first fluid pipe portion beyond a predetermined amount due to linear expansion of the second fluid pipe portion toward the bent portion in the longitudinal direction. Here, in the holder 130, the direction in which the flow path forming member 11 passes (the left-right direction in FIG. 4(c)) is defined as the flow path direction, the direction along the wall surface and perpendicular to the flow path direction (the left-right direction in FIG. 4(a)) is defined as the width direction, and the direction perpendicular to the wall surface (the up-down direction in FIG. 4(a)) is defined as the height direction.

[0033] The holder 130 includes a holder main body 131 fixed to the wall surface to which the base 111 of the joint protective cover 110 is fixed, and a holder 141 having an attachment portion (locking claw 143) attached to an attachment portion (groove portion 133) of the holder main body 131. As shown in FIGS. 3 to 5 , the holder main body 131 is formed in a plate-like shape so as to be fixed to the wall surface and to support the flow path component 11 from the wall surface side. On the other hand, the holder 141 is formed of a partially open, annular strip with ends. The holder 141 has a holding portion 142 extending circumferentially with a predetermined diameter. In this embodiment, the rear edge portion of the lower half of the holding portion 142 is notched at a substantially right angle, and a step is formed between the upper and lower halves. In other words, the upper half, located in the middle of the holding portion 142, is longer in the flow path direction and therefore has higher rigidity. The holder 141 has an inner surface in the middle portion thereof with a contact portion that contacts the outer surface of the flow path forming member 11 .

[0034] Each end of the holding portion 142 is provided with an attachment portion for attachment to an attachment portion of the holder body 131. As shown in FIG. 5, the attachment portion is a pair of locking claws 143 extending substantially horizontally from the end of the holding portion 142 outward in the width direction. The pair of locking claws 143 are plate pieces extending in opposite width directions. The attached holder body 131 and the holder 141 cooperate to surround and hold the outer periphery of the flow path component 11 (pipe fitting 13 or fluid pipes 14, 15). In other words, the holder 130 has an enclosing portion that surrounds at least a portion of the outer periphery of the flow path component 11. As shown in FIG. 6, the enclosing portion has a substantially circular inner periphery, and its inner diameter is substantially the same as the outer diameter of the fluid pipes 14, 15 to be held.

[0035] The holder body 131 has a fixing portion 132 for fixing the holder 130 to a wall surface, located approximately in the center in the flow path direction and width direction. The fixing portion 132 is a screw hole through which a screw passes. The holder body 131 also has a pair of grooves 133 as attachment portions corresponding to the attachment portions of the holder 141. The pair of grooves 133 are continuous along the flow path direction and have through holes 133a that open facing each other inward in the width direction. The grooves 133 also have an inlet 133b that opens one end (front end) of the through hole 133a in the flow path direction and introduces the locking claw 143 into the groove 133 as the holder 141 moves in the flow path direction, and a locking portion 134 that locks the locking claw 143 introduced through the inlet 133b into the groove 133. The through-hole 133a has an opening width and an opening length that allow the locking claw 143 to pass through from the width direction. The inlet 133b opens on the front side and has a size that allows the locking claw 143, which slides along the flow path direction, to be introduced into the groove 133. On the other hand, the end (rear end) of the groove 133 opposite the inlet 133b is closed. The locking portion 134 is an locking surface that faces downward within the groove 133 so as to engage with the upper surface of the locking claw 143.

[0036] That is, as shown in Fig. 5, the holder 141 can be attached to the holder main body 131 by sliding the holder 141 along the flow path direction from the front of the holder main body 131 (i.e., the inlet 133b side) and inserting the locking claws 143 of the holder 141 into the pair of grooves 133 via the pair of inlets 133b. In the attached state, as shown in Fig. 6, the locking claws 143 introduced into the grooves 133 via the inlets 133b are positioned so as to pass through the through holes 133a and are locked in the grooves 133 by the locking portions 134. Note that in this embodiment, the attachment direction in which the holder 141 is slid is the same as the flow path direction along the pipe axis of the flow path forming member 11 to be held.

[0037] 6, the holder main body 131 is provided with displacement restriction portions 135 that restrict displacement of each locking claw 143 so as to separate from the locking portion 134 via the through holes 133a of each groove portion 133 when the pair of attaching portions is attached to the pair of attached portions. The displacement restriction portions 135 are disposed in positions facing each end of the holding portion 142. The displacement restriction portions 135 are positioned inside the width direction of each end of the holding portion 142, and are formed on surfaces facing outward in the width direction of the standing walls that stand upright in the height direction. That is, as will be described later (see FIG. 14 ), when the holder 141 is deformed by receiving a load from the flow path component 11 and the end of the holder 142 moves inward in the width direction, an abutment surface 144 (the surface opposite to the protruding direction of the locking claw 143) facing inward in the width direction at the end of the holder 143 abuts against the displacement-regulating portion 135 of the standing wall, thereby preventing the locking claw 143 from completely detaching from the groove portion 133 via the through-hole 133 a. The tip end in the height direction of the standing wall (i.e., the upper end of the displacement-regulating portion 135) is located at a height position that is more distant from the wall surface than the locking portion 134. This allows the abutment surface 144 at the end of the holder 143 to reliably abut against the displacement-regulating portion 135, thereby reliably preventing the holder 141 from detaching from the holder main body 131.

[0038] 4(a) and 6, the holder main body 131 has a pair of outer walls 136 that are positioned outside the holding portion 142 in the width direction of the attached holder 130 and that stand upright to a position higher than the standing wall. The pair of outer walls 136 sandwich the holding portion 142 from the outside in the width direction, and function as guides that guide the sliding movement of the holder 141 when the holder 141 is attached to the holder main body 131. The pair of outer walls 136 also limit excessive distortion of the holder 141 radially outward, making it possible to maintain stable attachment of the holder 141 to the holder main body 131.

[0039] Furthermore, as shown in FIGS. 4(c), 5, and 7, the holder main body 131 is provided with a restricting wall 137 connected to the rear of the outer wall 136 in the flow path direction. Here, the outer wall 136 and the restricting wall 137 are connected to each other to form an L-shaped wall in a plan view. The restricting wall 137 closes the rear end of the groove portion 133 as shown in FIG. 7. Furthermore, the front surface of the restricting wall 137 can abut against the rear-facing end surface of the holding portion 142 of the holder 141. In other words, the restricting wall 137 functions as an excessive movement restricting portion that restricts excessive sliding movement of the holder 141 in the attachment direction when the locking claw 143 is introduced into the groove portion 133 through the introduction port 133b. In the attached state of the holder 130, as shown in Figures 4(c) and 7, the front surface of the regulating wall 137 abuts against the rear end surface of the holder 141, and a step portion (lower surface) is closely opposed between the upper surface of the regulating wall 137 and the upper and lower halves of the holder portion 142.

[0040] As shown in FIGS. 4(b) and 5, the holder main body 131 is provided with a pair of elastic claws 138 located on the front side of the introduction openings 133b of the pair of grooves 133 in the attachment direction. In their original positions, the pair of elastic claws 138 are positioned so as to interfere with the locking claws 143 that slide toward the introduction openings 133b. When the holder 141 is attached to the holder main body 131, the locking claws 143, moving in the attachment direction, come into contact with the elastic claws 138 and are elastically deformed so as to retract inward in the width direction. On the other hand, when the locking claws 143, moving in the separation direction opposite the attachment direction, come into contact with the elastic claws 138, the elastic claws 138 act to lock the locking claws 143 without elastic deformation. In other words, the elastic claws 138 function as a separation movement restricting portion that allows movement of the holder 141 in the attachment direction while restricting movement of the holder 141 in the separation direction opposite the attachment direction. Therefore, in the attached state of the holder 130, the restricting wall 137 as an excessive movement restricting part and the elastic claw 138 as a separation movement restricting part work together to position and maintain the holder 141 in the appropriate position on the holder main body 131 in the attachment direction.

[0041] The holder 130 is configured to be connectable to a connecting protrusion 114 (connected portion) provided on the base 111 of the joint protective cover 110 and / or a connecting recess 123 provided on the base member 121 of the fluid pipe protective cover 120. In particular, as shown in FIGS. 3(b) and 4(e), a connecting recess 139a that can fit into the connecting protrusion 114 of the base 111 is formed on the front edge of the holder main body 131. On the other hand, a connecting protrusion 139b that can fit into the connecting recess 123 of the base member 121 is formed on the rear edge of the holder main body 131. That is, in the flow path arrangement structure 10 described below, the holder 130 is installed between the joint protective cover 110 and the fluid pipe protective cover 120 so that one end of the holder 130 in the flow path direction is connected to the base 111 of the joint protective cover 110 and the other end of the holder 130 in the flow path direction is connected to the base member 121 of the fluid pipe protective cover 120.

[0042] Next, with reference to FIGS. 8 to 12, a flow path arrangement structure 10 constructed using the protective cover device 100 and flow path component 11 of this embodiment will be described. FIG. 8 is a schematic perspective view showing the flow path arrangement structure 10 of one embodiment of the present invention. FIG. 9 is a partially enlarged perspective view of the flow path arrangement structure 10. FIG. 10 is a plan view of the flow path arrangement structure 10 as seen from the wall surface side. Note that in FIGS. 8 to 10, for convenience of explanation, portions of the lid 112 and the covering member 122 are cut away to depict the internal structure. FIG. 11 is a bottom view of the flow path arrangement structure 10 as seen from the wall surface side. FIG. 12 is a CC cross-sectional view of the flow path arrangement structure 10 of FIG. 10. Here, the flow path arrangement structure 10 is a structure in which a flow path component 11 having a flow path that bends relative to the wall surface of the structure is disposed. Meanwhile, in the flow path arrangement structure 10, a structure in which the flow path component 11 is held relative to the wall surface by the holding portion 142 of the holder 130 is referred to as a holding structure. This holding structure does not have to include a protective cover, but may be interpreted as a structure including a protective cover. In the present invention, the wall surface on which the flow path forming member 11 is installed does not have to be a single plane, but may be composed of multiple intersecting surfaces.

[0043] The flow path arrangement structure 10 is a structure in which a flow path component 11 is arranged against a single wall surface using the above-described protective cover device 100. That is, the flow path arrangement structure 10 includes a flow path component 11 having a curved flow path, a joint protective cover 110 that forms an arrangement space therein for arranging the bent portion of the flow path component 11, fluid pipe protective covers 120 connected to the ends of the joint protective cover 110, and a holder 130 installed at the end of the bent portion. The flow path component 11 has a pipe fitting 13 that forms the bent portion that constitutes the curved flow path, a first fluid pipe 14 extending from a first end 13a of the pipe fitting 13, and a second fluid pipe 15 extending from a second end 13b of the pipe fitting 13. The first fluid pipe 14 forms a first fluid pipe section extending from a first end of the bent portion of the flow path arrangement structure 10, and the second fluid pipe 15 forms a second fluid pipe section extending from a second end of the bent portion of the flow path arrangement structure 10. In this embodiment, the pipe joint 13 is an L-shaped elbow, and the first fluid pipe 14 and the second fluid pipe 15 are straight pipes. The diameter of the pipe joint 13 is larger than the diameters of the first fluid pipe 14 and the second fluid pipe 15, and the first fluid pipe 14 and the second fluid pipe 15 are inserted into the ends 13a, 13b of the pipe joint 13. As shown in FIGS. 8 and 9 , a joint protective cover 110 is disposed inside the bent portion to protect it, and two fluid pipe protective covers 120 are disposed inside the first fluid pipe section and the second fluid pipe section to protect them, respectively.

[0044] As shown in FIG. 9 , a holder 130 is installed at least on the first end side of the bent portion of the flow path forming member 11. In this embodiment, another holder 130 is also installed on the second end side of the bent portion of the flow path forming member 11. The first end (second end) of the bent portion is a concept that includes not only the first end 13a (second end 13b) of the pipe fitting 13 but also the end of the first fluid pipe 14 (second fluid pipe 15) connected thereto. The first end (second end) side of the bent portion of the flow path forming member 11 refers to a portion that forms a flow path extending on the first end 13a (second end 13b) side of the pipe fitting 13, and is a concept that also includes a portion away from the first end 13a (second end 13b) of the pipe fitting 13. In this embodiment, the holder 130 is installed beside the first end 13a (second end 13b) of the pipe fitting 13 at a position that holds the end of the first fluid pipe 14 (second fluid pipe 15). However, in the present invention, the holder 130 may be installed to hold the first end 13a (second end 13b) of the pipe fitting 13 or the central portion (position away from the end) of the first fluid pipe 14 (second fluid pipe 15).

[0045] As shown in FIG. 10 , the holder 130 is installed between the joint portion protective cover 110 and the fluid pipe portion protective cover 120. Hereinafter, one end (first end) of the bent portion will be described, but the other end (second end) is similarly described. In particular, the holder main body 131 of the holder 130 is disposed so as to connect the base 111 of the joint portion protective cover 110 and the base member 121 of the fluid pipe portion protective cover 120 in the flow path direction. As shown in FIG. 11 , the connection protrusion 114 protruding from the base 111 in the flow path direction is inserted into the connection recess 139 a of the holder main body 131, and the connection protrusion 139 b protruding from the holder main body 131 in the flow path direction is inserted into the connection recess 123 of the base member 121, thereby connecting the base 111, the base member 121, and the holder main body 131 while being aligned along the flow path direction. The base 111, base member 121, and holder main body 131 are each fixed to the wall surface with screws. In this embodiment, the holder main body 131, which is directly fixed to the wall surface, is fixed adjacent to the base 111 of the joint protective cover 110 and the base member 121 of the fluid pipe protective cover 120. In other words, since the holder 130 is close to the end of the joint protective cover 110, it is advantageous in restricting movement of the flow path component member 11.

[0046] 10 , a lid 112 is attached to the base 111 of the joint protective cover 110, and a cover member 122 is attached to the base member 121 of the fluid pipe protective cover 120, thereby protecting both the flow path component 11 and the holder 130 from exposure on the wall surface. In this embodiment, the holder 130 is fixed to the wall surface outside the joint protective cover 110 when viewed from the wall surface, and with the first fluid pipe 14 (or the second fluid pipe 15) held by the holder 130, the holder main body 131 and the holder 141 are entirely housed within the fluid pipe protective cover 120. In other words, the cover member 122 of the fluid pipe protective cover 120 extends beyond the edge of the base member 121 in the flow path direction, thereby covering the entire holder 130 from the wall surface. 12 , the engaging piece 127 of the cover member 122 engages with the outer side surface of the holder body 131 in the width direction, thereby fitting the cover member 122 to the holder body 131 as well. That is, the holder 130 is protected from being exposed to the outside in its entirety, and exposure of the holder 130 is prevented from damaging the aesthetic appearance of the flow path arrangement structure 10. Note that, as another embodiment of the present invention, the holder 130 may be fixed to the wall surface on the inside of the joint portion protective cover 110 (or on the outside of the fluid pipe portion protective cover 120) when viewed from the wall surface, and the holder body 131 and the holder 141 may be entirely housed within the joint portion protective cover 110 with the first fluid pipe 14 (or the second fluid pipe 15) held by the holder 130. In this case, the lid 112 of the joint protection cover 110 extends beyond the edge of the base 111 in the flow path direction, so that the entire holder 130 can be covered from the wall surface.

[0047] 12, in a cross-sectional view of the first end of the bent portion, a holder 141 is attached to a holder main body 131 fixed to a wall surface via a fixing portion 132, and the holder main body 131 and the holder 141 cooperate to form an enclosing portion that surrounds and holds the first fluid pipe 14 of the flow path component 11. Note that surrounding the first fluid pipe 14 (or the second fluid pipe 15) with the enclosing portion can make the overall structure more compact than surrounding the end of the pipe fitting 13 with the enclosing portion. However, the enclosing portion may be configured to surround the end of the pipe fitting 13. Furthermore, since the retaining device 130 is installed so as to surround the first fluid pipe 14 (or the second fluid pipe 15) on the side of the pipe fitting 13, it is possible to effectively suppress movement of the pipe fitting 13 due to linear expansion of the second fluid pipe 15 (or the first fluid pipe 14) on the side different from the side being held (compared to when the pipe fitting 13 is held at a position away from the pipe fitting 13).

[0048] In this embodiment, the holder 130 holds the flow path component 11 such that the inner surface of the holder 141 abuts against the outer surface of the first fluid pipe 14. In particular, the holder 130 firmly holds the flow path component 11 because the abutting portion in the middle of the rigid holder 141 abuts against the outer surface of the first fluid pipe 14. However, the holder 130 may also surround and hold a fluid pipe having a pipe diameter smaller than the inner diameter of the holder 141 with a gap formed. In this case, the first fluid pipe 14 is allowed to move a predetermined distance inside the holder 141.

[0049] FIG. 13 is a schematic diagram showing the flow path arrangement structure 10 when the second fluid pipe section (or second fluid pipe 15) of the flow path component 11 linearly expands in the longitudinal direction toward the bent section. In the flow path arrangement structure 10, it is assumed that when hot water passes through the second fluid pipe 15, for example, the second fluid pipe 15 is heated and linearly expands so as to elongate in the longitudinal direction. Here, only the linear expansion of the second fluid pipe section will be described, but it goes without saying that the first fluid pipe section can also linearly expand in a similar manner. In this case, the holder 130 provided at the second end can function in the same way as the holder 130 provided at the first end.

[0050] As shown in FIG. 13 , when the second fluid pipe section linearly expands, a force is generated in the direction of the arrow, which moves the bent section of the flow path component 11 and the first fluid pipe section toward the opposite side of the second end of the bent section (i.e., the right side in FIG. 13 ), placing a large load on the holder 130. In contrast, in the flow path arrangement structure 10 (or holding structure) of this embodiment, the holder 141 is firmly attached to the holder main body 131 (at least in a direction perpendicular to the flow path direction). With reference to the locking claw 143 on the left side of FIG. 14 , for example, when a strong load is applied obliquely, moving the restricting portion 146 away from the wall surface, the holder 141 is pulled radially or deformed, causing the locking claw 143 to displace in a direction that disengages from the groove portion 133 via the through hole 133 a. At this time, the displacement restricting portion 135 provided on the holder main body 131 is positioned opposite the displacing end of the holder 142. As a result, the end of the holding portion 142 displaced inward in the width direction is locked by the displacement restricting portion 135 via the abutment surface 144, thereby restricting the locking claws 143 from coming off through the through holes 133a of the grooves 133. That is, in the flow path arrangement structure 10 (or holding structure), even if the flow path component 11 moves due to thermal expansion or the like and a force is applied to the holder 130, the displacement restricting portion 135 acts on the end of the holding portion 142 to restrict the displacement of the locking claws 143, thereby effectively preventing the locking claws 143 from coming off through the through holes 133a of the grooves 133. As a result, the holding of the flow path component 11 by the holder 130 is stably maintained.

[0051] In other words, in the flow path arrangement structure 10 of this embodiment, the displacement control portion 135 controls the displacement of the locking claw 143 in the detachment direction, thereby firmly maintaining the attachment state of the holder main body 131 and the holder 141, and as a result, it is possible to stably maintain the holding structure of the flow path component member 11.

[0052] Next, a method for constructing the flow path arrangement structure 10 will be described. The installation positions for installing the flow path constituent members 11 to form a curved flow path are identified on the wall surface of the structure, and the base 111 of the joint protective cover 110, the base member 121 of the fluid pipe protective cover 120, and the holder body 131 are connected to each other and fixed to the wall surface with screws or the like according to the installation positions. The pipe fitting 13 of the flow path constituent member 11 is positioned and placed on the base 111. Then, the ends of the first fluid pipe 14 and the second fluid pipe 15 are connected to the first end 13a and the second end 13b of the pipe fitting 13, respectively, and the first fluid pipe 14 and the second fluid pipe 15 are positioned and placed between the outer wall portion 124 of the base member 121. The first fluid pipe 14 and the second fluid pipe 15 are held by the outer wall portion 124 and the inner wall portion 125, so that the pipe axis of the flow path component 11 can be positioned approximately in the center of the arrangement space of the joint portion protective cover 110. At this time, the respective ends of the first fluid pipe 14 and the second fluid pipe 15 are placed on the holder main body 131 at both ends of the bent portion. Then, by attaching the holder 141 to the holder main body 131 so as to surround the respective ends of the first fluid pipe 14 and the second fluid pipe 15, a holding structure can be constructed that holds the flow path component 11 against the wall surface. Next, the lid body 112 and the cover member 122 are assembled to the base 111 and the base member 121, respectively, to construct the flow path arrangement structure 10.

[0053] In the above-described embodiment of the flow path arrangement structure 10, the flow path component 11 is disposed on one wall surface, bending into an L-shape. However, the protective cover device and flow path arrangement structure of the present invention may be configured to be installed at a corner where two wall surfaces intersect. FIG. 15 is a schematic perspective view of a protective cover device 100′ for installation at a corner. The protective cover device 100′ includes a joint protective cover 110′, a fluid pipe protective cover 120, and a holder 130. The joint protective cover 110′ is configured to be fixed to the corner. That is, the fixing surface of the base 111′ of the joint protective cover 110′ is bent to form two perpendicular planes, allowing the joint protective cover 110′ to be fixed to two perpendicular wall surfaces via the corner. The protective cover device 100′ is identical to the protective cover device 100 in configuration except for the joint protective cover 110′. Figure 16 shows a flow path arrangement structure 10' arranged in an extruded corner. As shown in Figure 16, a protective cover device 100' protects and holds the flow path component 11 arranged in the extruded corner. In the present invention, the protective cover device may be provided with a plurality of joint protective covers of different shapes, such as joint protective cover 110 and joint protective cover 110'. In other words, by selectively using joint protective covers 110 and 110' of different shapes, the protective cover device makes it possible to install a flow path arrangement structure on structures of various shapes.

[0054] The following describes the effects of the protective cover device 100 (flow path arrangement structure 10) according to one embodiment of the present invention.

[0055] According to the protective cover device 100 of this embodiment, a pair of attachment portions provided on the holder main body 131 are continuous along the flow path direction and form a pair of grooves 133 having through holes 133a that open facing each other. The grooves 133 are provided with an inlet 133b that opens one end of the through hole 133a in the flow path direction and introduces the locking claw 143 into the grooves 133 as the holder 141 moves in the flow path direction, and a locking portion 134 that locks the locking claw 143 introduced through the inlet 133b into the grooves 133. That is, when the holder main body 131 and the holder 141 surround and hold the flow path constituent member 11 in the circumferential direction, the holder portion 142 surrounds a portion of the flow path constituent member 11 (e.g., fluid pipes 14, 15 or pipe joint 13), and the pair of locking claws 143 of the holder 141 are introduced into the groove portion 133 via the inlet 133b and positioned so as to pass through the through holes 133a, whereby the locking claws 143 are locked in the groove portion 133 by the locking portions 134, and the pair of attachment portions of the holder 141 can be attached to the pair of attachment receiving portions of the holder main body 131. The holder main body 131 is provided with displacement restricting portions 135 that are positioned opposite each end of the holder portion 142 when the pair of attachment portions are attached to the pair of attachment receiving portions, and that restrict displacement of the locking claws 143 so as to separate through the through holes 133a of the groove portion 133. That is, even if, while the holder 130 is holding the flow path constituent member 11, the flow path constituent member 11 moves due to thermal expansion or the like, and a force is applied to the holder 130, the displacement restriction portion 135 acts on the end of the holding portion 142 to restrict the displacement of the locking claws 143, thereby preventing the locking claws 143 from coming off through the through holes 133a of the grooves 133. This makes it possible to stably maintain the holding of the flow path constituent member 11 by the holder 130. Therefore, the holder 130 of this embodiment can hold the flow path constituent member 11 against the wall surface more stably.

[0056] Next, a description will be given of a protective cover device 200 having a holder 230 according to another embodiment (second embodiment) of the present invention. The components of the protective cover device 200 other than the holder 230 are the same as those of the protective cover device 100.

[0057] Fig. 17 is a schematic exploded perspective view of a protective cover device 200 according to one embodiment of the present invention. As shown in Fig. 17, the protective cover device 200 according to a second embodiment of the present invention includes a joint protective cover 110 that defines an installation space therein for arranging a bent portion of a flow path component 11, a fluid pipe protective cover 120 that is connected to an end of the joint protective cover 110 and that protects first and second fluid pipes that are installed therein, and holders 230 that are installed at each end of the bent portion. In this protective cover device 200, the rear surface (back face) of the holder 230 is installed so as to face the joint protective cover 110. In addition, in the protective cover device 200 according to this embodiment, the lengths of the base member 121 and the cover member 122 of the fluid pipe protective cover 120 in the flow path direction are approximately the same.

[0058] Next, a holder 230 of this embodiment will be described with reference to Figures 18 to 21. Figures 18(a) and (b) are perspective views of holder 230 as seen from the front and rear, respectively. Figures 19(a) to (e) are front, plan, side, rear, and bottom views of holder 230. Figure 20 is an exploded perspective view of holder 230. Figure 21 is a DD cross-sectional view of holder 230.

[0059] The holder 230 holds the flow path forming member 11 that forms the flow path extending in the flow path direction, and is installed at least at the first end of the bent portion (the first end 13a of the pipe fitting 13 or the end of the first fluid pipe 14), and is configured to restrict movement of the bent portion and the first fluid pipe portion beyond a predetermined amount due to linear expansion of the second fluid pipe portion toward the bent portion in the longitudinal direction. Here, in the holder 230, the direction in which the flow path forming member 11 passes (the left-right direction in FIG. 19(c)) is defined as the flow path direction, the direction along the wall surface and perpendicular to the flow path direction (the left-right direction in FIG. 19(a)) is defined as the width direction, and the direction perpendicular to the wall surface (the up-down direction in FIG. 19(a)) is defined as the height direction.

[0060] The holder 230 includes a holder main body 231 fixed to the wall surface to which the base 111 of the joint protective cover 110 is fixed, and a holder 241 having an attachment portion (locking claw 243) attached to an attachment portion (groove portion 233) of the holder main body 231. As shown in FIGS. 18 to 20 , the holder main body 231 is formed in a plate-like shape so as to be fixed to the wall surface and to support the flow path component 11 from the wall surface side. On the other hand, the holder 241 is formed of a partially open, annular strip with ends. The holder 241 has a holding portion 242 extending circumferentially with a predetermined diameter. In this embodiment, the rear edge portion of the lower half of the holding portion 242 is notched at a substantially right angle, and a step is formed between the upper and lower halves. In other words, the upper half, located in the middle of the holding portion 242, is longer in the flow path direction and therefore has higher rigidity. The inner surface of the middle part of the holder 241 has a contact portion that contacts the outer surface of the flow path forming member 11. Furthermore, a plurality of protrusions 242a that protrude radially inward are formed on the inner surface of the holder 242. As will be described later, these protrusions 242a are configured to bite into the foam layer 19 wrapped around the flow path forming member 11.

[0061] Each end of the holding portion 242 is provided with an attachment portion for attachment to an attachment portion of the holder body 231. As shown in FIG. 20, the attachment portion is a pair of locking claws 243 extending substantially horizontally from the end of the holding portion 242 outward in the width direction. The pair of locking claws 243 are plate pieces extending in opposite directions in the width direction. The attached holder body 231 and holder 241 cooperate to surround and hold the outer periphery of the flow path component 11 (pipe fitting 13 or fluid pipes 14, 15). In other words, the holder 230 has an enclosing portion that surrounds at least a portion of the outer periphery of the flow path component 11. As shown in FIG. 21, the enclosing portion has a substantially circular inner periphery, and its inner diameter is approximately the same as the outer diameter of the fluid pipes 14, 15 to be held.

[0062] The holder body 231 has a fixing portion 232 for fixing the holder 230 to a wall surface, located approximately in the center in the flow path direction and width direction. The fixing portion 232 is a screw hole through which a screw passes. The holder body 231 also has a pair of grooves 233 as attachment portions corresponding to the attachment portions of the holder 241. The pair of grooves 233 are continuous along the flow path direction and have through holes 233a that open toward each other on the inner side in the width direction. The grooves 233 also have an inlet 233b that opens one end (front end) of the through hole 233a in the flow path direction and introduces the locking claw 243 into the groove 233 as the holder 241 moves in the flow path direction, and a locking portion 234 that locks the locking claw 243 introduced through the inlet 233b into the groove 233. The through-hole 233a has an opening width and an opening length that allow the locking claw 243 to pass through from the width direction. The inlet 233b opens on the front side and has a size that allows the locking claw 243, which slides along the flow path direction, to be introduced into the groove 233. On the other hand, the end (rear end) of the groove 233 opposite the inlet 233b is closed. The locking portion 234 is an locking surface that faces downward within the groove 233 so as to engage with the upper surface of the locking claw 243.

[0063] 20, the holder 241 can be attached to the holder main body 231 by sliding the holder 241 along the flow path direction from the front of the holder main body 231 (i.e., the inlet 233b side) and inserting the locking claws 243 of the holder 241 into the pair of grooves 233 via the pair of inlets 233b. In the attached state, the locking claws 243 introduced into the grooves 233 via the inlets 233b are positioned so as to pass through the through holes 233a, and are locked in the grooves 233 by the locking portions 234, as shown in FIG.

[0064] 21, the holder main body 231 is provided with displacement restriction portions 235 that restrict displacement of each locking claw 243 so as to separate from the locking portion 234 via the through holes 233a of each groove portion 233 when the pair of attaching portions is attached to the pair of attached portions. The displacement restriction portions 235 are disposed at positions facing each end of the holding portion 242. The displacement restriction portions 235 are positioned inside the width direction of each end of the holding portion 242, and are formed on the surfaces facing outward in the width direction of the standing walls that stand upright in the height direction. That is, as will be described later, when the holder 241 is deformed by receiving a load from the flow path component 11 and the end of the holding portion 242 moves inward in the width direction, an abutment surface 244 (the surface opposite to the protruding direction of the locking claw 243) facing inward in the width direction at the end of the holder 243 abuts against the displacement-restricting portion 235 of the standing wall, thereby restricting the locking claw 243 from completely detaching from the groove portion 233 via the through-hole 233a (see FIG. 28 ). The tip in the height direction of the standing wall (i.e., the upper end of the displacement-restricting portion 235) is located at a height position that is more distant from the wall surface than the locking portion 234. This allows the abutment surface 244 at the end of the holder 243 to reliably abut against the displacement-restricting portion 235, thereby reliably preventing the holder 241 from detaching from the holder main body 231.

[0065] 19(a) and 21, holder main body 231 has a pair of outer walls 236 that are positioned outside holder portion 242 in the width direction of holder 230 in the attached state and that stand upright to a position higher than the upright walls. By sandwiching holder portion 242 from the outside in the width direction, the pair of outer walls 236 function as guide portions that guide the sliding movement of holder 241 when holder 241 is attached to holder main body 231. Furthermore, the pair of outer walls 236 limit excessive distortion of holder 241 outward in the radial direction, making it possible to maintain stable attachment of holder 241 to holder main body 231.

[0066] 19(c) and 20, the holder main body 231 is further provided with a restricting wall 237 connected to the rear of the outer wall 236 in the flow path direction. Here, the outer wall 236 and the restricting wall 237 are connected to each other and form an L-shaped wall in a plan view. The restricting wall 237 closes the rear end of the groove 233. The front surface of the restricting wall 237 can abut against the rear-facing end surface of the holding portion 242 of the holder 241. In other words, the restricting wall 237 functions as an excessive movement restricting portion that restricts excessive sliding movement of the holder 241 in the attachment direction when the locking claw 243 is introduced into the groove 233 through the introduction port 233b. In the attached state of the holder 230, as shown in Figure 19(c), the front surface of the regulating wall 237 abuts against the rear end surface of the holder 241, and the step portion (lower surface) is closely opposed between the upper surface of the regulating wall 237 and the upper and lower halves of the holder 242.

[0067] 19(b) and 20, the holder main body 231 is provided with a pair of elastic claws 238 arranged on the front side of the introduction openings 233b of the pair of grooves 233 in the attachment direction. In their original positions, the pair of elastic claws 238 are arranged in positions where they interfere with the locking claws 243 that slide toward the introduction openings 233b. When attaching the holder 241 to the holder main body 231, the locking claws 243, moving in the attachment direction, come into contact with the elastic claws 238, causing elastic deformation so as to retract inward in the width direction. On the other hand, when the locking claws 243, moving in the separation direction opposite to the attachment direction, come into contact with the elastic claws 238, the elastic claws 238 act to lock the locking claws 243 without elastic deformation. In other words, the elastic claws 238 function as a separation movement restricting portion that allows movement of the holder 241 in the attachment direction while restricting movement of the holder 241 in the separation direction opposite to the attachment direction. Therefore, in the attached state of the holder 230, the restricting wall 237 as an excessive movement restricting part and the elastic claw 238 as a separation movement restricting part work together to position and maintain the holder 241 in the appropriate position on the holder main body 231 in the attachment direction.

[0068] The holder 230 is configured to be able to be housed on the base 111 of the joint protection cover 110. In particular, the holder main body 231 is held on the base 111 via the abutment step 117 (connected portion) of the base 111 shown in FIG. 2 without moving in the flow path direction. Meanwhile, as shown in FIG. 18(b), an abutment piece 239 extending perpendicular to the fixing surface is provided on the rear surface of the holder main body 231. This abutment piece 239 engages with the end surface of the end of the base 111 as a connecting portion, thereby holding the holder main body 231 in a positioned state on the base 111. Note that when the holder main body 231 is positioned on the base 111, the fixing portion 232 of the holder main body 231 and the fixing hole 115 of the base 111 are aligned. Furthermore, the holder 230 is configured so that, when placed on the base 111, it does not interfere with the connection between the joint protection cover 110 (base 111) and the fluid pipe protection cover 120 (base member 121).

[0069] Next, with reference to FIGS. 22 to 26, a flow path arrangement structure 20 constructed using the protective cover device 200 and flow path component 11 of this embodiment will be described. FIG. 22 is a schematic perspective view showing the flow path arrangement structure 20 of one embodiment of the present invention. FIG. 23 is a partially enlarged perspective view of the flow path arrangement structure 20. FIG. 24 is a plan view of the flow path arrangement structure 20 as seen from the wall surface side. Note that in FIGS. 22 to 24, for ease of explanation, portions of the lid 112 and the covering member 122 are cut away to depict the internal structure. FIG. 25 is a bottom view of the flow path arrangement structure 20 as seen from the wall surface side. FIG. 26 is an E-E cross-sectional view of the flow path arrangement structure 20 of FIG. 24. Here, the flow path arrangement structure 20 is a structure in which a flow path component 11 having a flow path that bends relative to the wall surface of the structure is disposed. Meanwhile, in the flow path arrangement structure 20, a structure in which the flow path component 11 is held relative to the wall surface by the holding portion 242 of the holder 230 is referred to as a holding structure.

[0070] The flow path arrangement structure 20 is a structure in which a flow path component 11 is disposed on a wall surface using the above-described protective cover device 200. Specifically, the flow path arrangement structure 20 includes a flow path component 11 having a curved flow path, a joint protective cover 110 that defines an internal installation space for disposing the bent portion of the flow path component 11, fluid pipe protective covers 120 connected to the ends of the joint protective covers 110, and a holder 230 installed at the end of the bent portion. In this embodiment, the fluid pipe is a coated pipe fitted with a coating material that is compressible in the thickness direction. Specifically, a foam layer 19 is provided as a heat insulating material around the first fluid pipe 14 and the second fluid pipe 15, which are straight pipes. This foam layer 19 may be formed from foamed urethane or the like. The foam layer 19 is compressively deformable between the first end of the bent portion and / or the first fluid pipe and the restricting portion so as to allow the bent portion and the first fluid pipe to move when the second fluid pipe linearly expands. 22 and 23, the joint protective cover 110 is disposed inside to protect the bent portion, and two fluid pipe protective covers 120 are disposed inside to protect the first fluid pipe portion and the second fluid pipe portion, respectively. The foam layer 19 may be disposed on part or the entire pipe joint 13.

[0071] 24 and 25, the holder 230 is installed outside the joint protective cover 110 and the fluid pipe protective cover 120, but inside the joint protective cover 110. In particular, the base 111 of the joint protective cover 110 and the base member 121 of the fluid pipe protective cover 120 are directly connected in the flow path direction via the connection protrusion 114 and the connection recess 123, and the holder 230 is housed inside the joint protective cover 110. Here, the joint protective cover 110 covers the ends of the first fluid pipe 14 and the second fluid pipe 15, as well as each end of the pipe joint 13, which are positioned inside the joint protective cover 110. The base 111, base member 121, and holder main body 231 are each fixed to a wall surface with screws.

[0072] 24, a lid 112 is attached to the base 111 of the joint protective cover 110, and a cover member 122 is attached to the base member 121 of the fluid pipe protective cover 120, thereby protecting both the flow path component 11 and the holder 230 from being exposed to the wall surface. In this embodiment, the holder 230 is fixed to the wall surface inside the joint protective cover 110 when viewed from the wall surface, and with the first fluid pipe 14 (or the second fluid pipe 15) held by the holder 230, the holder main body 231 and the holder 241 are entirely housed within the joint protective cover 110. In other words, the holder 230 is protected from being entirely exposed to the outside, and the aesthetic appearance of the flow path arrangement structure 20 is prevented from being marred by the exposure of the holder 230.

[0073] As shown in FIG. 26 , in the cross-sectional view of the first end of the bent portion, a holder 241 is attached to a holder main body 231 fixed to a wall surface via a fixing portion 232. The holder main body 231 and the holder 241 cooperate to form an enclosing portion that surrounds and holds the flow path component 11 (here, the first fluid pipe 14). In this case, the foam layer 19 alternates between compressed portions pressed by the protrusions 242a and uncompressed portions that are relatively less compressed or not compressed and that are sandwiched between the protrusions 242a in the enclosing direction. In this way, the foam layer 19 deforms to sandwich itself between the protrusions 242a, thereby preventing it from moving or shifting inside the enclosing portion. Furthermore, the alternating formation of pressed and unpressed (or weakly pressed) portions effectively ensures holding force while preventing the foam layer 19 from being over-compressed.

[0074] In this embodiment, the inner surface of the holder 241 abuts against the foam layer 19 that forms the outer surface of the first fluid pipe 14, and the holder 230 holds the flow path component 11 in a state in which free movement of the first fluid pipe 14 is not permitted inside the holder 242 (i.e., in a fixed state). In particular, the abutting portion of the middle portion of the rigid holder 241 abuts against the outer surface of the first fluid pipe 14 (the outer surface of the foam layer 19), so that the holder 230 firmly holds the flow path component 11. However, the holder 230 may also hold a fluid pipe having a pipe diameter smaller than the inner diameter of the holder 241 by surrounding it with the foam layer 19 interposed therebetween with a gap formed. In this case, the first fluid pipe 14 is permitted to move a predetermined distance inside the holder 241 as the foam layer 19 deforms.

[0075] 27 is a schematic diagram showing the flow path arrangement structure 20 when the second fluid pipe section (or second fluid pipe 15) of the flow path component 11 linearly expands in the longitudinal direction toward the bent section. In the flow path arrangement structure 20, it is assumed that when hot water passes through the second fluid pipe 15, for example, the second fluid pipe 15 is heated and linearly expands so as to elongate in the longitudinal direction. Here, only the linear expansion of the second fluid pipe section will be described, but it goes without saying that the first fluid pipe section can also linearly expand in a similar manner. In this case, the holder 230 provided at the second end portion can function in the same way as the holder 230 provided at the first end portion.

[0076] As shown in FIG. 27, when the second fluid pipe section linearly expands, a force is generated in the direction of the arrow, which moves the bent portion of the flow path component 11 and the first fluid pipe section toward the opposite side of the second end of the bent portion (i.e., the right side in FIG. 27), and a large load is applied to the holder 230. In contrast, in the flow path arrangement structure 20 (or the holding structure) of this embodiment, the holder 241 is firmly attached to the holder main body 231 (at least in the direction perpendicular to the flow path direction). With reference to the locking claw 243 on the left side of FIG. 28, for example, when a strong load is applied obliquely such that the restricting portion 246 moves away from the wall surface, the holder 241 is pulled radially or deformed, and the locking claw 243 is displaced in a direction that disengages from the groove portion 233 via the through hole 233a. At this time, the displacement restricting portion 235 provided on the holder main body 231 is positioned opposite the displacing end of the holder 242. As a result, the end of the holding portion 242 displaced inward in the width direction is locked by the displacement restricting portion 235 via the abutment surface 244, thereby restricting the locking claws 243 from coming off via the through holes 233a of the grooves 233. That is, in the flow path arrangement structure 20 (or holding structure), even if the flow path component 11 moves due to thermal expansion or the like and applies force to the holder 230, the displacement restricting portion 235 acts on the end of the holding portion 242 to restrict the displacement of the locking claws 243, thereby effectively preventing the locking claws 243 from coming off via the through holes 233a of the grooves 233. As a result, the holding of the flow path component 11 by the holder 230 is stably maintained.

[0077] That is, in the flow path arrangement structure 20 of this embodiment, the displacement control portion 235 controls the displacement of the locking claw 243 in the detachment direction, thereby firmly maintaining the attachment state of the holder main body 231 and the holder 241, and as a result, it is possible to stably maintain the holding structure of the flow path component member 11.

[0078] The characteristics of the holding structure in the flow path arrangement structure 20 of this embodiment can also be described as follows.

[0079] One embodiment of the holding structure includes a holder (holding tool 230) having a holding portion that surrounds and holds a pipe, and the inner surface of the holding portion is provided with a plurality of protrusions spaced apart in the surrounding direction, and the holding portion holds a coated pipe fitted with a covering material (foam layer 19) that is compressible in the thickness direction. The present invention is characterized in that compressed portions pressed by the plurality of protrusions and non-compressed portions that are compressed relatively little or are not compressed at all and are sandwiched between the plurality of protrusions are alternately formed in the surrounding direction.

[0080] Another problem is that if the inner surface of the holding portion is flat, when the covering material (foam layer) is held in a pressed state, it is pressed by the surface, causing it to be crushed as a whole, and there is a risk that the crushed area will extend to the outside of the holding portion in the axial direction of the tube.In contrast, with the above-mentioned holding structure, by forming pressed portions and non-pressed (or weakly pressed) portions alternately in the circumferential direction of the holding portion, it is possible to ensure holding force while preventing the covering material from being crushed too much.

[0081] The present invention is not limited to the above-described embodiment, and various modifications are possible. Modifications of the present invention will be described below.

[0082] (1) In the above embodiment, the flow path component is configured by connecting two straight fluid pipes to the end of an L-shaped pipe joint, but the present invention is not limited to this. The flow path component may be configured by a single flexible fluid pipe, and the bent portion and the fluid pipe portion may integrally form the fluid pipe. In the flow path arrangement structure, the fluid pipe is arranged in a bent state at the bent portion.

[0083] (2) In the above embodiment, the flow path component is configured by connecting two straight fluid pipes to the ends of an L-shaped pipe fitting. However, the present invention is not limited to this. For example, the flow path component may be configured by connecting three (two or more) straight fluid pipes to a pipe fitting (a three-way fitting) having ends on three sides. In this case, as shown in FIG. 29 , a protective cover device 300 may be configured with a joint protective cover 310 that forms a flow path that bends in three directions, fluid pipe protective covers 120 connected to the three ends of the joint protective cover 310, and multiple holders 130 disposed at each end. It goes without saying that the above-described effects of the present invention can be achieved even if the number of branches (the number of ends of the bent portion) of the pipe fitting is increased or decreased. Alternatively, the flow path component may be configured by connecting a fluid pipe to a straight pipe fitting. In this case, as shown in Figure 30, the protective cover device 400 can be composed of a joint protective cover 410 that forms a straight flow path, a fluid pipe section protective cover 120 that is connected to the end of the joint protective cover 410, and a retainer 130 that is placed on the end of the pipe joint.

[0084] (3) In the present invention, the holding structure (or flow path arrangement structure) does not necessarily have to include a joint portion protective cover and / or a fluid pipe portion protective cover, as shown in Fig. 31. In the flow path arrangement structure (or holding structure) 50 shown in Fig. 31, a flow path component 11 including a pipe joint 13 (forming a curved flow path) and fluid pipes 14 and 15 connected to the pipe joint 13 and arranged along the wall surface is held against the wall surface by a holder 130.

[0085] (4) The flow path arrangement structure of the present invention is not limited to the above-described embodiment. In the above-described embodiment, the holder body is directly fixed to the wall surface, or is fixed to the wall surface together with the base (or base member) while being placed on the bottom wall of the base. However, in the present invention, the holder body may be fixed only to the base (or base member), and the base may be fixed to the wall surface, thereby indirectly fixing the holder body to the wall surface.

[0086] (5) In the above embodiment, the holder, the joint protective cover, and the fluid pipe protective cover are configured as separate bodies. However, the present invention is not limited to this. Two or more of these components may be integrally formed. For example, the holder body of the holder may be integrally formed with the base of the joint protective cover or the base member of the fluid pipe protective cover, and may be configured to also function as the base or base member. More specifically, the joint protective cover (or fluid pipe protective cover) may include a base (base member) and a lid (covering member) that are assembled together to form a storage space for accommodating the pipe joint (or fluid pipe), and the base (base member) may be provided with an attachment receiving portion (groove) to which the attachment portion (locking claw) of the holder is attached. In other words, the holder body is provided with an assembly portion to which the lid (or covering member) of the joint protective cover (or fluid pipe protective cover) can be assembled.

[0087] (6) The holder of the present invention is not limited to the above-described embodiment. In the above-described embodiment, the surrounding portion formed by the holder and the holder main body has a generally circular shape that is symmetrical in the width direction, but the present invention is not limited to this. For example, the surrounding portion may have an oval or elliptical inner periphery, or may be configured to abut the fluid pipe from above and below (height) and form a gap in the width direction between the surrounding portion and the outer surface of the fluid pipe. Alternatively, the surrounding portion may have a shape that is asymmetric in the width direction.

[0088] (7) The holder of the present invention is not limited to the above-described embodiment. In the above-described embodiment, the displacement regulating portion is formed on a standing wall extending to a height position farther from the wall surface than the locking portion, but the present invention is not limited to this. That is, the displacement regulating portion may take any form as long as it is positioned opposite each end of the holding portion when the pair of attachment portions are attached to the pair of attachment targets, and it regulates the displacement of each locking claw so that it separates through the through-holes of each groove portion. For example, the displacement regulating portion may be formed on a standing wall extending to a position lower than the locking portion, or may be formed in the shape of a claw or protrusion.

[0089] The present invention is not limited to the above-described embodiments and modifications, and can be implemented in various forms within the technical scope of the present invention. [Explanation of symbols]

[0090] 10 Flow path arrangement structure 11 Flow path components 13 Pipe fittings 13a First end 13b Second end 14 1st fluid pipe 15 Second fluid pipe 19 Foam layer 100 protective cover device 110 Joint protection cover 111 Foundation 112 Lid 114 Connection protrusion (connected part) 115 Fixed hole 116 Connecting piece 117 Contact step part (connected part) 120 Fluid pipe protection cover 121 Base member 122 Covering member 123 Connection recess (connected part) 124 Outer wall section (positioning section) 125 Inner wall (positioning part) 126 Engagement piece 127 Engaged piece 130 Holder 131 Holder body 132 Fixed part 133 Groove (attached part) 133a Through hole 133b Inlet 134 Locking part 135 Displacement control section (standing wall) 136 Outside wall 137 Restriction wall (excessive movement control section) 138 Elastic claw (separation movement restriction part) 139a Connection recess (connection part) 139b Connection protrusion (connection part) 141 Holding body 142 Maintenance 143 Claw (taking part) 144 Face to face 239 When the joint (connection) 242a protrusion

Claims

1. A holder for holding a flow path component member that configures a flow path extending in a flow path direction, A holder body having a fixing part to be fixed to a wall surface and a pair of opposing attachment parts; a holder having a holding portion extending in a circumferential direction of the flow path component, and a pair of attachment portions formed at both ends of the holding portion and attached to the pair of attachment portions, respectively, and surrounding and holding the flow path component in a state where the holder is attached to the holder body, The pair of attachment portions each have a pair of locking claws protruding outward in opposite directions, The pair of attachment portions are continuous along the flow path direction and form a pair of grooves having through holes that open opposite to each other, the groove portion is provided with an introduction port that opens one end side of the through hole in the flow path direction and introduces the locking claw into the groove portion by movement of the holder in the flow path direction, and a locking portion that locks the locking claw introduced through the introduction port into the groove portion, The holder is characterized in that the holder body is provided with a displacement control portion that is positioned opposite each end of the holding portion when the pair of attachment portions are attached to the pair of attachment portions, and that controls the displacement of each of the engagement claws so as to come off through the through hole of each of the groove portions.

2. The holder according to claim 1, characterized in that the displacement regulating portion is formed on an upright wall that stands in a vertical direction away from the wall surface, and a tip of the upright wall is at a height position farther away from the wall surface than the engaging portion.

3. The holder according to claim 2, characterized in that the holder body has an outer wall that is positioned outside the holding portion in a width direction along the wall surface and perpendicular to the flow path direction, and that is erected to a position higher than the erected wall.

4. the holder body includes an excessive movement restriction portion that restricts excessive movement of the holder in an attachment direction when the locking claw is introduced into the groove portion through the introduction port; The holder according to any one of claims 1 to 3, characterized in that it is provided with a separation movement restricting portion that allows movement of the holder in an attachment direction while restricting movement of the holder in a separation direction opposite to the attachment direction.

5. A holding structure in which a flow path component member including a pipe joint and a fluid pipe connected to the pipe joint and arranged along a wall surface is held against the wall surface by a holder, The holder is a holder body having a fixing part fixed to a wall surface and a pair of opposing attachment parts; a holder having a holding portion extending in a circumferential direction of the flow path component, and a pair of attachment portions formed at both ends of the holding portion and attached to the pair of attachment portions, respectively, and surrounding and holding the flow path component in a state where the holder is attached to the holder body, The holder is installed so that the holder body and the holder main body surround the fluid pipe beside the pipe joint, The pair of attachment portions each have a pair of locking claws protruding outward in opposite directions, the pair of mounting portions are continuous along the flow path direction, and form a pair of grooves having through holes that open opposite to each other, and the engaging claws are configured to be attached to the mounting portion by being disposed in the grooves through the through holes, A retaining structure characterized in that the retainer body is provided with a displacement control portion that is positioned opposite each end of the retaining portion when the pair of attachment portions are attached to the pair of attached portions, and that controls the pair of locking claws from displacing toward each other due to deformation of the retaining portion, so as to prevent each of the locking claws from detaching through the through holes of each of the grooves.

6. At least a portion of the fluid pipe is disposed in a fluid pipe portion protective cover, and at least a portion of the pipe joint is disposed in a joint portion protective cover connected to the fluid pipe portion protective cover, The retaining structure described in claim 5, characterized in that the retaining device main body is directly or indirectly fixed to a wall surface outside the joint portion protective cover, and when the fluid pipe is held by the retaining device, the entire retaining body and the retaining device main body are contained within the fluid pipe portion protective cover.

7. At least a portion of the fluid pipe is disposed in a fluid pipe portion protective cover, and at least a portion of the pipe joint is disposed in a joint portion protective cover connected to the fluid pipe portion protective cover, The retaining structure according to claim 5, characterized in that the retaining body is directly or indirectly fixed to a wall surface inside the joint protective cover, and the entire retainer and the retaining body are contained within the joint protective cover while the fluid pipe is held by the retainer.

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