Trough fixing support structure, trough line using same, trough structure and method for supporting and fixing same, and trough fixing support member used therein

Abstract

[Problem] The purpose of the present invention is to provide a trough fixing support structure that increases the freedom of installation of a trough fixing support member for supporting a trough and is easily attached, while also enabling stable trough structure installation. [Solution] It is possible to obtain a trough fixing support structure 100 wherein a support pillar structure 20, which uses a vertical direction support pillar 21 that comprises a fiber-reinforced resin member with a hollow structure having a substantially rectangular cross section, and a horizontal direction support pillar 22 and / or a diagonal direction support pillar 23, is further provided with a plurality of S-shaped trough fixing support members 25, the S-shaped trough fixing support members 25 are each configured from an upside-down-U-shaped first fixing section 25a and a right-side-up-U-shaped second fixing section 25b that are continuous with each other, the upside-down-U-shaped first fixing section 25a is engaged with and fixed to the horizontal direction support pillar 22 or the diagonal direction support pillar 23, and a trough 10 can be mounted on the right-side-up-U-shaped second fixing section 25b. It is further possible to provide a direction changing structure using the same, and various types of angle members.

Description

Trough fixing support structure, trough line using the same, trough structure and supporting and fixing method thereof, and trough fixing support member used therefor

[0001] The present invention relates to a trough fixing support structure, a trough line using the same, a trough structure and a method for supporting and fixing the same, and a trough fixing support member used therefor.

[0002] Troughs and conduits have been known as protective tubes for electric wires and cables. In addition to conduits with circular cross sections, there are also rectangular conduits. Since rectangular conduits have a roughly square cross section, they are sometimes arranged in multiple rows and multiple tiers. However, compared to troughs, rectangular conduits have a thinner wall, and therefore lack the strength and rigidity required for aboveground installation. Therefore, although the entire conduit can be buried underground and arranged in multiple rows and multiple tiers, conduits are not usually laid aboveground in multiple rows and multiple tiers.

[0003] Another method for laying circular cross-section electrical conduit in multiple rows and multiple layers is to use square blocks with a rectangular outer periphery and a semicircular inner surface, which are inverted upside down to sandwich the circular cross-section electrical conduit, and then stack these in multiple layers to create a buried structure with multiple rows and multiple rows of circular cross-section electrical conduit.

[0004] Meanwhile, in recent years, mountainous and sloping areas have been increasingly used as locations for wind power generation, in addition to flat land. On sloping land, underground installation work is difficult, and taking into account the risks of landslides and the ease of maintaining electrical cables, there is a need for the development of a trough installation rack system that can accommodate sloping ground with electrical conduit. Developments have included connecting structures between racks and support piles that can set the support surface of the support member to a predetermined angle to match the slope, as well as trough lines using these, fixed connecting fittings and angle-adjustable connecting fittings for use with these.

[0005] Furthermore, there is a trough bridge, which is a method of constructing and laying a trough on the ground. A trough bridge can be installed so that both sides of the support do not protrude from the trough bridge, and there are also trough bridges with adjustable width that are easy to work with.

[0006] There is also a trough structure in which the tips of both legs of an H-shaped support pile are buried underground, such as next to a railway line, and support piles with trough support parts are laid out at predetermined intervals on the opposite side, and troughs are connected to a trough bridge on which troughs can be connected to the support piles.

[0007] When placing the trough on the ground, the bottom and side plates of the trough may be stabilized by filling them with gravel up to a predetermined height, or the trough may be buried in the ground up to the top of the side plates that form an approximately U-shaped opening, with the lid protruding above the ground surface.

[0008] In addition to the above, there is a metal trough that is characterized by comprising a metal trough body that is hollow and has an axially continuous opening, a metal lid that is continuous along the axial direction of the trough body and attached to the opening, and a fixing bracket that fixes the lid to the trough body. For example, since this is a metal trough in which fixing flanges protrude from the trough body and the lid body, and these fixing flanges are connected to each other with fixing brackets, there is a risk of electric shock if a current leak occurs in the trough laid inside the trough.

[0009] As described above, there are methods for directly stacking rectangular conduit in multiple rows and tiers, and for burying circular cross-section conduit in multiple rows and tiers underground using rectangular blocks. For aboveground installation, there is a method for installing troughs in a single row using a trough bridge. However, there has been no method for laying multiple rows and tiers above ground while preventing electric shock. Furthermore, when installing troughs underground, methods such as utility trenches and cable tunnels can be used. Aboveground installation has the advantage of not requiring digging up the ground when installing or maintaining additional troughs. The present invention provides a trough fixing support structure that can easily install and support multiple troughs in multiple rows and tiers when installing aboveground.

[0010] Regarding patent documents, the invention of Patent Document 1 aims to provide a pipe body that can be easily and stably stacked in multiple rows and multiple stages with any number of pipe bodies, which has the great advantage of facilitating the formation of porous pipelines underground. Furthermore, the invention aims to provide a pipe body that is structured so that it is not prone to ground subsidence even when rainfall or vibration is applied to the soil cover surface of the pipeline formation trench, and does not require special countermeasures to prevent ground subsidence. To achieve this objective, the invention proposes a pipe body P having a pipe wall 1 formed along the pipe axis with alternating large-cross-sectional area rectangular convex portions 2 and small-cross-sectional area circular concave portions 3, and rib-like protruding walls 4, 4 extending from the outer periphery of the concave portions 3 to approximately the outer periphery of two opposing sides of the convex portions 2 along the pipe axis. Similar structures are also disclosed in Patent Document 6,391,903 and JP 2006-322491 A, among others.

[0011] The invention of Patent Document 2 aims to provide a rack-to-support pile connection structure having at least one of a linear connection portion and an inclined connection portion connecting the racks, and capable of adjusting the support surface of the support member to a predetermined angle in accordance with the slope, a trough track using the same, and a fixed connector and an adjustable-angle connector used therein. To achieve this, the following technology is presented. Specifically, the support member 1 is primarily composed of an H-shaped framework 7 consisting of two substantially parallel columns 3 and a connecting portion 5 connecting the columns 3, and a rotatable support portion 9 with an L-shaped cross section. The bent portion 19 of the rotatable support portion 9 is rotatably fixed to the columns 3 with bolts. The rack 21 is fixed to the rotatable support portion 9 of the support pile 1. In the trough track 90, at least one of a linear connection portion 55 where the racks 21 are connected linearly by fixed connectors 43 and an inclined connection portion 95 where the racks 21 are connected at different angles by adjustable-angle connectors 59 (59a) is formed.

[0012] The invention of Patent Document 3 aims to provide a trough support member, a trough support member installation method, and a trough bridge that are easy to install and prevent the trough support member from sinking or tipping over. The following means are disclosed to achieve this. The trough support member 1 is mainly composed of a support column 3, a fixing member 5, etc. The support column 3 is, for example, a member with an L-shaped cross section. At least two support columns 3 of a predetermined length are fixed and connected by a fixing member 5 near the heads 13 of the support columns 3, approximately parallel and spaced a predetermined distance apart. The fixing member 5 consists of a trough support mounting member 7 provided at the top and a subsidence prevention member 9 provided at the bottom. The trough support mounting surface 15 is the portion where the trough support is installed. Furthermore, the subsidence prevention surface 17 is the portion that comes into contact with the ground when the trough support member 1 is driven into the ground, preventing the support columns 3 from sinking further.

[0013] The invention of Patent Document 4 aims to provide a variable-width trough bridge that can be installed without protruding both sides of the support pedestal from the trough bridge, allowing for excellent workability. To achieve this, the invention proposes a bridge comprising multiple flat support pedestals mounted on support posts erected on the ground, and support frames with angular cross sections mounted on the pedestals in opposing positions to support the troughs. Each support frame is held in place by a pair of overlapping clamping plates that sandwich the horizontal portion of the support frame and extend beyond the horizontal portion toward the center of the support pedestal while restricting the frame's movement in the width direction. The pair of clamping plates are fixed to the bridge by bolts and nuts inserted through bolt holes in the clamping plates and the support pedestal. One of the bolt holes in the clamping plates and the support pedestal may be a plurality of holes slightly larger in diameter than the other bolt hole and arranged at a predetermined pitch along the width direction.

[0014] The invention of Patent Document 5 aims to provide a construction method and cable trough bridge installation members for a cable trough bridge that do not require manual excavation of the abutment foundations or anchor blocks, do not require the disposal of excavated soil, are extremely lightweight, are easy to transport to the shoulder of the slope where the cable trough will be laid, and can achieve extremely low cable trough installation costs. To achieve this, the invention proposes a method in which a pair of support piles are driven into the cable trough bridge installation location with a set distance between them, and a retaining rod having a pair of ring-shaped support pile insert rings at both ends is attached to the upper ends of the driven support piles by inserting the support pile insert rings into the support piles, and a cable trough fixture that can be adjusted to expand and contract in the width direction of the cable trough bridge is attached to the retaining rod, and the cable trough is laid between the attached cable trough fixtures.

[0015] The invention of Patent Document 6 aims to provide a metal trough that facilitates cable installation and maintenance, such as cable replacement after installation, while preventing the risk of the lid bouncing up due to vehicle vibrations. To achieve this objective, the following is proposed: Specifically, the trough comprises a metal trough body 2 that is hollow and continuous in the axial direction and has axially continuous openings 4 at its corners; a metal lid 3 that is continuous along the axial direction of the trough body 2 and attached to the openings 4; and a fixing bracket 7 that secures the lid 3 to the trough body 2. A fixing flange 2e having a pin hole 2f protrudes from the trough body 2, and a fixing flange 3c having a pin hole 3d protrudes from the lid 3. U-clips are inserted into the pin holes 2f and 3d as the fixing bracket 7.

[0016] The invention of Patent Document 7 relates to a flame-retardant fiber-reinforced plastic (FR-FRP) cable trough configured to accommodate a high-voltage power transmission cable in a cable tunnel. The specific means described are as follows: The cable trough system includes a plurality of serially connected rectangular parallelepiped members, each having an upper casing and a lower trough joined together to form an elongated body; a plurality of upper and lower bracket pairs fixed to the joints where the edges of the upper and lower casings of two adjacent rectangular parallelepiped members meet; and a plurality of belts that are slidably engageable with corresponding buckles. Each belt includes an explosive-force-absorbing / elastic / resistant polymer fiber band. Each buckle includes an outer frame supporting one or more crossbars that capture the bands to wrap / secure the belts around the rectangular parallelepiped member. Each buckle is configured to slide the corresponding belt a limited distance, allowing the upper casing of the rectangular parallelepiped member to be lifted upward away from the lower casing, creating a gap for discharging increased air pressure in the event of a fire or explosion. The invention of Patent Document 7 is an invention in which a trough is buried underground and is also an invention that takes into account explosions in the event of a fire or explosion accident, but is not an invention in which a trough is laid above ground.

[0017] The invention of Patent Document 8 aims to provide a cable support metal fitting that can completely secure a support arm and a mounting bracket and can withstand long-term use. To achieve this aim, the invention proposes a cable support metal fitting that supports a cable 7 on a vertical fixed angle A on the inside wall of a tunnel, comprising a pair of mounting brackets 1A, 1B fixed with bolts and nuts while sandwiching a fixed wall a of the fixed angle A, and a horizontal support arm 2 with a box-shaped cross section that is cantilever-welded to the mounting brackets 1A, 1B with an intermediate portion of the mounting bracket 1A, 1B received in an engagement groove 3 cut into the base end face, and supports the cable 7 on its upper surface. The support arm 2 has openings 5A, 5B at the base of the side wall corresponding to the mounting brackets 1A, 1B, through which a welding rod can be inserted, and the mounting brackets 1A, 1B and the support arm 2 are welded through the openings 5A, 5B.

[0018] As for other structures, hot-dip galvanized metal troughs have traditionally been used in some cases. In these cases, the support columns are also made of steel, and insulating materials must be installed between the troughs to prevent electrical leakage accidents, and grounding is also required. Furthermore, metal troughs are long (up to 6 m), making installation difficult in cases with many curved sections, making it difficult to adapt to the site environment. Furthermore, metal troughs lack a connecting structure, which means that foreign objects or small animals may enter the connecting sections. Furthermore, the support columns supporting these troughs lack flexibility in the positioning of the hooks that support and secure the troughs, and the hooks are fixed in place. While a two-tiered concrete trough structure using H-shaped steel has been proposed, this structure does not allow for further tiering, and the support base is made of metal, posing problems such as the risk of electric shock.

[0019] Japanese Patent Application Laid-Open No. 2000-320743 Japanese Patent Application Laid-Open No. 2022-53346 Japanese Patent Application Laid-Open No. 2018-33195 Japanese Patent Application Laid-Open No. 2008-236830 Japanese Patent Application Laid-Open No. 2015-142387 Japanese Patent Application Laid-Open No. 2002-199533 Japanese Patent Application Laid-Open No. 2022-549975 Japanese Patent Application Laid-Open No. 11-220827

[0020] In view of the above-mentioned conventional technology, the present invention aims to provide a trough fixing support structure that can be installed above ground, allows multiple troughs to be installed without widening the route width as much as possible, reduces the risk of electric shock even without grounding, and is easy to install. Another object of the present invention is to provide a trough fixing support structure that increases the flexibility of installing hooks (trough fixing support members) that support the troughs, simplifies installation, and enables the installation of a stable trough structure. Furthermore, this provides a new installation method for troughs as protective members for electric wires and cables, replacing rack systems that are applied to various underground conduits and slopes.

[0021] The trough-fixing support structure of the present invention has a support structure in which mutually orthogonal horizontal and vertical supports are combined in a grid pattern, and the support position of the trough in this support structure can be easily changed by adjusting the position of the trough-fixing support members. The present invention provides a trough-fixing support structure capable of installing a trough structure, a trough-fixing support member used therewith, and a method for supporting and fixing a trough structure with the trough installed. The trough-fixing support structure of the present invention can also use diagonal supports that intersect obliquely with the vertical supports instead of the horizontal supports, or can use diagonal supports simultaneously with the horizontal supports. In this invention, a trough-fixing support structure having troughs oriented in at least different directions can be obtained by connecting either the horizontal or diagonal supports of the first support structure of two trough-fixing support structures oriented in different directions to either the horizontal or diagonal supports of the second trough-fixing support structure at a predetermined angle relative to each other. By connecting support structures with different angles, a direction-changing structure for a trough support structure can be obtained without using a branching member. Here, when connecting support structures facing different directions to obtain a direction-changing structure without using a branching member, the ends of the two troughs to be connected must also be cut at a predetermined angle in a predetermined direction. Here, in the present invention, a direction-changing structure is defined to mean a general structure that is not a simple linear shape, such as a direction-changing structure in which a trough fixed to a trough support structure or angle member is guided in a direction different from the predetermined direction, or a structure in which a trough fixed to a support structure or angle member branches in a different direction in addition to the predetermined direction. For example, a direction-changing structure can be provided from the support structure using various branching members. Here, branching members that guide the support structure in a different direction can be considered as direction-changing structures connected to trough fixing members such as up-down inclined angle members, T-branching angle members, bent members, S-bend angle members, and inverted S-bend angle members. By combining such direction-changing structures, a variety of trough systems can be provided, including trough support structures with installed troughs.The present invention also provides a trough fixing support member for use in the trough support structure, which comprises an inverted S-shaped first fixing portion and a regular U-shaped second fixing portion. The trough fixing support member has a different support structure shape depending on whether the cross-sectional structure of the support columns that make up the trough support structure is hollow or solid. When the cross-section of the support column of the trough fixing support member is solid, the width of the inverted U-shaped first fixing portion is narrower than when the cross-section of the support column is hollow.

[0022] In the trough fixing support structure of the first invention of the present invention, the invention described in claim 1 is a support structure assembled by using hollow fiber reinforced resin members with a substantially rectangular cross section as horizontal and / or diagonal support columns and vertical support columns, and by fixing the horizontal and / or diagonal support columns to one or both sides of the vertical support columns which are buried in the ground at a predetermined interval or supported and fixed by concrete, with at least the horizontal support columns being approximately perpendicular to the vertical support columns or the diagonal support columns being oblique to the vertical support columns, with one or more stages of fixing bolts, and the support structure further comprises a plurality of S-shaped trough fixing support members, The S-shaped trough-fixing support member has an inverted U-shaped first fixing portion and a regular U-shaped second fixing portion that are integrally connected to each other. The inverted U-shaped first fixing portion can be engaged with and fixed to any position on the horizontal or diagonal support columns where the horizontal or diagonal support columns do not interfere with the vertical support columns. Multiple troughs can be placed on the regular U-shaped second fixing portions of the trough-fixing support members. This trough-fixing support structure employs a fiber-reinforced resin support structure. This configuration allows for multiple troughs to be installed vertically in multiple tiers, minimizing the need for widening the trough width. Furthermore, the fiber-reinforced resin structure reduces the risk of electric shock even without grounding. The lightweight components provide excellent construction. The trough-fixing support structure of the present invention provides increased flexibility in the installation of trough-fixing support members and enables simple and stable trough installation. Here, the horizontal and vertical supports of the structure of the present invention are usually installed so that they intersect approximately at right angles, but on inclined surfaces, etc., diagonal supports may be used to install them so that they intersect obliquely. As described above, when supports made of hollow fiber-reinforced resin members are used, the strength of the supports is reinforced by the fibers, eliminating the need for concerns about corrosion, etc., and it is therefore possible to maintain the strength, durability, and impact resistance of the supports, and it is possible to obtain a trough fixing support structure that can fully maintain the required characteristics even when used for a long period of time.

[0023] Furthermore, in the trough fixing support structure of the present invention, the invention described in claim 2 provides that the support structure is a support structure in which at least one of the horizontal supports or the diagonal supports is assembled with one or more stages of fixing bolts, the trough is a trough structure in which troughs are arranged in a series, with trough lids being placed on and fixed to trough bodies having an approximately U-shaped cross section, and the series arrangement of the trough structures is either a male-female connection structure for adjacent troughs, or the trough structure does not have a male-female connection structure and is composed only of trough storage sections, and troughs consisting only of trough storage sections and matching trough lids are arranged closely together, the trough structure is a trough structure arranged on either a horizontal support or a diagonal support arranged on one or both sides of the vertical support, and the trough of the trough structure is placed on the second fixing section of the S-shaped trough fixing support member to form a trough fixing support structure. By adopting such a configuration, the trough fixing support structure of the present invention is a support structure that allows stable and highly flexible placement and fixing of a trough via the trough fixing support member.

[0024] In a third aspect of the present invention, the trough-fixing support structure includes a trough-fixing support member having two holes at symmetrical opposite positions in a portion of the S-shaped first fixing portion of the trough-fixing support member that extends downward beyond a position corresponding to the underside of the cross section of either the horizontal or diagonal support column so as not to obstruct bolt insertion when the inverted U-shaped first fixing portion is installed on the horizontal or diagonal support column, and the trough-fixing support member is fixed to the horizontal or diagonal support column by inserting bolts into the two holes and tightening them with nuts. By adopting such a configuration, the trough-fixing support member can be positioned freely without being restricted by the screw holes, etc., of the horizontal support column, and the trough can be firmly and stably placed and fixed by tightening the support column with bolts and nuts.

[0025] In addition, in the trough-fixing support structure of the present invention, the invention described in claim 4 is a trough-fixing support structure in which the second fixing portion of the trough-fixing support member and the bottom of each trough of the trough structure placed on the second fixing portion are simply placed on the second fixing portion, or the second fixing portion and the bottom of each trough of the trough structure placed on the second fixing portion have bolt insertion holes formed at predetermined positions, and bolts are inserted into the bolt insertion holes and fixed to the second fixing portion with nuts. As described above, the troughs can be simply placed on the second fixing portion of the trough-fixing support member, or they can be fixed with bolts, but bolt fixing is preferable in terms of safety in the event of an earthquake or the like.

[0026] Furthermore, in the trough fixing support structure of the present invention, the invention described in claim 5 is a trough fixing support structure in which, when the trough structure is fixed to the horizontal struts or the diagonal struts that constitute the trough fixing support structure, one or two trough fixing support members are provided for each trough of the trough structure. By adopting such a configuration, the troughs can be efficiently mounted and fixed with fewer trough fixing support members, which is also excellent in economy.

[0027] In the trough fixing support structure of the present invention, a sixth aspect of the invention provides a trough fixing support structure in which, when each trough of the trough structure is arranged and fixed to the horizontal struts that constitute the trough fixing support structure, one trough fixing support member per trough in the longitudinal direction of the trough, the trough fixing support member supports a position spaced a predetermined distance from the center of gravity of the trough to the female joint structure. By adopting such a configuration, it is possible to stably mount the trough on the horizontal struts with a small number of trough fixing support members, which is very economical.

[0028] The trough fixing support structure of the present invention, as set forth in claim 7, is a trough fixing support structure in which a long, flat or substantially C-shaped support base is disposed between the trough bottom of the trough structure placed on the second fixing portion of the trough fixing support member and the second fixing portion. This allows the trough to be installed and fixed in a more stable manner. If the support base is long enough for two or three troughs, it is sufficient to dispose trough fixing support members on both ends of the support base, which contributes to saving trough fixing support members.

[0029] The troughs used in the trough-fixing support structure of the present invention are mainly made of resin, but metal troughs can also be used. The troughs placed on the trough-fixing support member are made of metal and have the same cross-sectional shape in the longitudinal direction, and the metal troughs are fixed to the trough-fixing support member in a state where they are abutted against each other and arranged continuously, or the metal troughs are fixed to the trough-fixing support member with a gap between them and the gap covered with a cover member.

[0030] Metal troughs are manufactured by roll-forming metal sheets, and are therefore longer than plastic troughs. This allows them to suitably accommodate the direction in which the electric wires extend, and they can reliably store and protect the electric wires over long distances with a small number of troughs. When using metal troughs, in either case, it is necessary to install grounding wires at predetermined intervals to prevent electric shock due to electrical leakage accidents, and therefore in the present invention, they are only used as at least a partial auxiliary to the plastic troughs.

[0031] In addition, in the trough fixing support structure of the present invention, a ninth aspect of the present invention provides a trough fixing support structure in which, instead of hollow fiber-reinforced resin members with a substantially rectangular cross-section, solid fiber-reinforced resin members with a substantially rectangular cross-section are fixed to the horizontal struts and the diagonal struts by abutting the long sides of at least one of the horizontal struts and the diagonal struts with the substantially rectangular cross-section against the vertical struts. In this case, solid fiber-reinforced resin members with a substantially rectangular cross-section are not used for the vertical struts. The reason for this is that, for example, if solid struts are used, if the cross-sectional areas of the hollow and solid struts are substantially the same, the surface area of ​​the struts will be smaller, thereby reducing the contact area between the struts and the soil, and therefore reducing stability when the struts are buried in the soil. In this case, the approximately rectangular solid fiber-reinforced resin member has a long side that is approximately the same height as the support columns used in typical hollow horizontal or diagonal columns, but the short side, corresponding to the width of the solid member, is smaller than the width of the support column. Therefore, the shape of the inverted U-shaped first fixing portion of the S-shaped trough fixing support member is changed to match the width of the solid structural support column, while the shape of the second fixing portion on which the trough is placed remains the same. In this way, even when using supports made of solid fiber-reinforced resin members, the strength, durability, and impact resistance of the supports can be maintained similarly to when using hollow structural supports, and the trough fixing support structure can maintain sufficient strength even after long-term use.

[0032] In the trough fixing support structure of the present invention, the invention described in claim 10 is a trough fixing support structure in which the fiber reinforced resin member having a hollow structure or a solid structure and an approximately rectangular cross section is a fiber reinforced resin composite material composed of at least one of a thermoplastic resin or a thermosetting resin and glass fibers consisting of long filamentous fibers, and the glass fibers are arranged on the surface of the fiber reinforced resin member as a continuous filamentous long fiber.

[0033] In the trough fixing support structure of the present invention, the invention described in claim 11 is a trough fixing support structure in which the fiber reinforced resin member of the trough fixing support structure is made of a thermoplastic resin or a thermosetting resin, the thermoplastic resin being either polypropylene resin, ABS resin, PC resin, PBT resin, PPO resin, or PA resin, or the thermosetting resin being either urethane resin or epoxy resin, and the glass fibers are arranged such that long fibers are either parallel to the longitudinal direction or wound around the surface of the fiber reinforced resin member at a predetermined angle, or are arranged so that they are entangled and wound around at a predetermined angle.

[0034] The trough-fixing support structure of the present invention, as described in claim 12, is a support structure assembled with the horizontal or diagonal struts using multiple stages of fixing bolts, and includes a direction-changing structure in which the horizontal or diagonal struts of another support structure are fixed to another support structure at a predetermined angle horizontally or vertically relative to the horizontal or diagonal struts of the first support structure so that they connect to at least one end of the multiple stages of horizontal or diagonal struts in a different direction, such as diagonally downward or diagonally to the side. This structure directs some of the troughs of the trough structure fixed to the horizontal or diagonal struts of the first support structure in a direction different from the original orientation of the troughs of the trough structure. Here, it is preferable to fix the horizontal and diagonal struts so that their cut end faces abut each other, but they may also be arranged with a small gap between them. By using such a support structure, a direction-changing structure for the trough-fixing support structure can be obtained without using a branch member separate from the components constituting the support structure. The end of the connecting direction change structure is cut at a predetermined angle in either the horizontal or vertical direction.

[0035] In addition, the trough-fixing support structure of the present invention, as described in claim 13, includes a trough-fixing support structure including a branching member that guides some of the troughs of the trough structure, which are supported and fixed to either the horizontal or diagonal columns of the trough structure by the trough-fixing support members, and other troughs, which are fixed to the horizontal or diagonal columns of a support structure other than the trough structure, in a direction different from the original arrangement direction of the troughs of the trough structure. In this case, the horizontal and diagonal columns may be fixed so that their cut end faces abut each other, or they may be arranged with a small gap between them. Furthermore, by adopting such a configuration, the trough structure can be installed in accordance with topographical constraints, such as undulations and curvatures of the installation site and connections to underground installations. In the present invention, a branching member is defined as a member that guides a specific trough from a trough structure in a direction different from that of adjacent troughs. As will be described later, there are various types of branching members, such as vertically inclined angle members, T-shaped branching angle members, bent angle members, S-shaped bent angle members, and reverse S-shaped bent angle members.

[0036] In the trough fixing support structure according to the present invention, the direction-changing member is either a vertically inclined angle member or a T-shaped branch angle member, and the direction-changing structure using the direction-changing member includes, as described above, a direction-changing structure that guides the trough in a different vertical direction while keeping it facing in the same direction as the original direction before being connected to the direction-changing member in a plan view, or a direction-changing structure that branches off in a direction different from the original direction before being connected to the branch member. This allows the trough structure to be installed in accordance with the topographical constraints and branching needs of the location where the trough is installed.

[0037] In the trough-fixing support structure of the present invention, the branching member includes a bent portion formed of a bent angle member, an S-shaped bent angle member, or an inverted S-shaped bent angle member, and the direction-changing structure using the direction-changing member includes a direction-changing structure that guides the trough in a bent direction different from the original direction before being connected to the branching member in plan view, by using any of these branching members. This allows the trough structure to be installed in accordance with the topographical constraints and branching needs of the location where the trough is installed.

[0038] In the trough line including the direction change structure according to the present invention, the invention described in claim 16 is a trough line having a trough fixing support structure. By arranging troughs with such direction change structures in a continuous manner (trough structure), it is possible to transport power to required locations and transmit electrical signals, etc., while arranging and protecting electric wires and cables inside.

[0039] The invention of claim 17 provides a method for supporting and fixing a trough structure, which is a second invention of the present invention, and is a method for supporting and fixing a trough structure using a trough fixing support structure having a support structure assembled by using hollow fiber reinforced resin members with a substantially rectangular cross section as horizontal supports, diagonal supports, and vertical supports, and by fixing the horizontal supports or diagonal supports to one or both sides of the vertical supports, which are buried in the ground or supported and fixed by concrete at predetermined intervals, with one or more stages of fixing bolts so that the horizontal supports or diagonal supports are substantially perpendicular or oblique to the vertical supports, and the support structure further comprises a plurality of S-shaped trough fixing support members, The trough-fixing support members each have an inverted U-shaped first fixing portion and a regular U-shaped second fixing portion that are connected to each other, and the inverted U-shaped first fixing portion is engaged with and fixed to the horizontal support column or the diagonal support column. A trough structure having a plurality of troughs arranged in series is placed on the regular U-shaped second fixing portions of the trough-fixing support members, and the trough structure is supported by the trough-fixing support structure. This method greatly increases the degree of freedom in the placement of the trough-fixing support members, allowing troughs to be installed easily and stably.

[0040] In the method for supporting and fixing a trough structure of the present invention, the invention described in claim 18 is a method for fixing a trough fixing support structure in which a metal or resin trough structure is supported by the trough fixing support structure, and addition / removal of cables arranged in the metal or resin trough structure or maintenance is performed by adjusting the tightness of the bolts and nuts that secure the trough fixing support member to the inverted U-shaped first fixing portion that is installed on the horizontal support or the diagonal support of the trough fixing support member. This makes it possible to perform maintenance such as adding or removing cables more easily and without difficulty.

[0041] A third aspect of the present invention is a trough support member according to claim 19, which is an S-shaped trough support member comprising an inverted U-shaped first fixing portion and a regular U-shaped second fixing portion, the first fixing portion having two holes symmetrically disposed at opposing positions on a portion of the first fixing portion that extends downward beyond the horizontal or diagonal support when the inverted U-shaped first fixing portion is mounted on the horizontal or diagonal support, and the two holes can be inserted with bolts and tightened with nuts, and the second fixing portion, which is a regular U-shaped opening at the end, can accommodate a metal or resin trough structure. The trough support member of the present invention allows bolts to be inserted into the two holes and tightened with nuts, eliminating the need to drill holes in the horizontal support, greatly increasing the flexibility of the installation location of the member on the support structure and enabling simple and stable installation of troughs. Here, the trough fixing support member of the present invention is usually made of a metal material such as aluminum, but materials such as fiber reinforced resin and engineering plastics can also be used.

[0042] In addition, in the trough-fixing support member of the present invention, the invention described in claim 20 is a trough-fixing support member for a solid structural support column, wherein when the trough-fixing support member for use with a solid structural support column is attached to a horizontal or diagonal support column having a substantially rectangular cross-section, the support column is attached using the long side of the solid structure as the attachment surface, so that the inner surface width of the inverted U-shaped first fixing portion approximately matches the short side of the solid structure having a substantially rectangular cross-section, and the length of the U-shaped first fixing portion is formed to a dimension that allows bolt holes to be provided in the portion extending below the long side of the cross section of the horizontal or diagonal support column. In this way, even when a support column made of a solid fiber-reinforced resin member is used, by making the attachment surface the long side of the substantially rectangular shape and approximately matching the width of the short side of the solid structure to the width of the first fixing portion, it is possible to stably support the trough structure with the second fixing portion.

[0043] In another embodiment of the trough structure of the present invention, the trough structure includes a support structure formed by combining a plurality of fiber-reinforced resin members and erected on a fixing surface, a support structure having a trough-fixing support member detachably fixed to the support structure, and a resin trough fixed to the trough-fixing support member and disposed at a distance from the fixing surface. This prevents electrical leakage due to the distance from the fixing surface. In this case, it is preferable that the trough-fixing support member has a hook shape that can be detachably fixed to the fiber-reinforced resin member.

[0044] The use of the trough fixing support structure of the present invention enables a trough fixing support structure in which troughs are arranged in multiple stages, and further enables the realization of a trough line with a direction change structure using branch members. According to the present invention, the adoption of a novel trough fixing support member increases the degree of freedom in the position at which it engages with the horizontal support, and enables stable placement and fixing of troughs with simple installation. Furthermore, if necessary, bolt holes can be provided in the opposing trough fixing support members at a position below the trough fixing support member and beyond the horizontal or diagonal support column, and fixing can be performed with bolts and nuts without drilling holes in the column, allowing installation anywhere on the horizontal or diagonal support column. This simplifies installation of the trough fixing support member and significantly increases the degree of freedom and stability in the fixing position.

[0045] 1 is a perspective view showing a schematic overall configuration of a trough fixing support structure in which horizontal struts using trough fixing support members are approximately perpendicular to the vertical struts.

[0023] FIG. 1 is a perspective view showing a schematic overall configuration of a trough fixing support structure in which horizontal struts using trough fixing support members are approximately perpendicular to the vertical struts and diagonal struts are obliquely intersecting the vertical struts.

[0024] FIG. 1 is an enlarged perspective view of region III in FIG. 1.

[0025] FIG. 3 is a cross-sectional view taken along line IV-IV in FIG. 3, where (a) shows the overall structure in which a resin trough is installed, (b) shows a case in which the trough fixing support members and the trough bottom are bolted together at the trough bottom in region B, and (c) shows an example of fixing a trough lid to the trough body.

[0026] FIG. 1 shows an example of a cross section of a strut made of a hollow fiber-reinforced resin member and a cross section of a strut made of a solid fiber-reinforced resin member. 4(a) is a cross-sectional view showing an example of a support structure in which a resin trough is supported by trough-fixing support members on horizontal and / or oblique support columns made of a fiber-reinforced resin member with a solid structure. FIG. 4(a) is a cross-sectional view showing, in the field of view of FIG. 4(a), a structure when a metal trough is placed instead of a resin trough. FIG. 4(a) is a cross-sectional view showing, in the field of view of FIG. 4(a), a state in which a substantially C-shaped support base is applied. FIG. 4(a) is a cross-sectional view showing, in the field of view of FIG. 4(a), a state in which a flat support base is applied. FIG. 4(a) is a side view showing, in the field of view of FIG. 4(a), a state in which a trough-fixing support member is placed relative to the trough structure ... cross-sectional view showing, in the field of view of FIG. 4(a), a state in which a trough-fixing support member is placed relative to the trough structure. FIG. 4(b) is a cross-sectional view showing, in the field of view of FIG. 4(a), a state in which a trough-fixing support member is placed relative to the trough structure. FIG. 1 is a side view schematically showing a trough fixing support structure that is continuous with underground burial by changing the direction of the trough structure from a horizontal support to an oblique support arranged at an angle. FIG. 2 is a perspective view schematically showing an up-and-down gradient angle member. FIG. 3 is a side view showing a continuous state of a resin trough to which up-and-down gradient angle members are applied. FIG. 4 is a perspective view schematically showing a T-shaped angle member. FIG. 5 is a perspective view schematically showing a C-shaped bent angle member. FIG. 6 is a drawing showing the structure of a bridge pier. FIG. 7 is a perspective view schematically showing an S-shaped bent angle member. FIG. 8 is a side cross-sectional view schematically showing an aspect in which a T-shaped branch trough is installed.Fig. 1 is an exploded perspective view showing a T-shaped branch trough installed in the trough; Fig. 2 is a perspective view showing a curved trough; Fig. 3 is a perspective view showing a vertically inclined trough (a), an upwardly inclined trough (b), and a downwardly inclined trough (c).

[0046] A trough-fixing support structure according to a preferred embodiment of the present invention includes a support structure composed of horizontal and / or diagonal support columns and vertical support columns. The support structure includes a plurality of S-shaped trough-fixing support members (preferably trough-fixing support brackets). The S-shaped trough-fixing support members each include an inverted U-shaped first fixing portion and a regular U-shaped second fixing portion, which are connected to each other. The inverted U-shaped first fixing portion is fixed by engaging with the horizontal and / or diagonal support columns. Meanwhile, a trough can be placed on the regular U-shaped second fixing portion. The trough-fixing support structure according to this preferred embodiment will now be described in detail with reference to the drawings.

[0047] FIG. 1 is a perspective view showing a schematic overall configuration of a trough-fixing support structure 100 using a trough-fixing support member 25 according to this embodiment. The trough-fixing support structure 100 includes a support structure 20 having vertical support columns 21 and horizontal support columns 22, and a trough-fixing support member 25. The support structure 20 of the trough-fixing support structure 100 includes a vertical support column 21 extending upward from the ground or concrete ground 1 (fixing surface). The vertical support column 21 is made of a hollow fiber-reinforced resin member with a substantially rectangular cross section. Four horizontal support columns 22 are installed and fixed to the vertical support column 21 by support column fixing members 24. The support column fixing members 24 may be of any material, but are preferably made of bolts and nuts.

[0048] Like the vertical supports 21, the horizontal supports 22 are made of hollow fiber-reinforced resin members with a substantially rectangular cross section. In this way, the vertical supports 21 and the horizontal supports 22 are assembled with the support fixing members 24 so that they are substantially perpendicular to each other, thereby forming the support structure 20. Note that "substantially perpendicular" means that the supports are installed at a slight angle relative to the topography, structures, etc. of the installation location, with the main meaning being that they intersect at 90 degrees, and it also implies that they can be assembled at an angle of 85 degrees to 95 degrees as needed. When the supports are attached to the vertical supports so that they intersect at an angle other than the above-mentioned substantially perpendicular angle, it is referred to as "obliquely intersecting."

[0049] 2 shows a support structure 100 having a support structure 20 in which two lower horizontal struts 22 are fixed to each other so as to be substantially perpendicular to the vertical struts 21 and two upper diagonal struts 23 are fixed to each other so as to be oblique to the vertical struts 21. In this way, the support structure may have a support structure including horizontal struts attached perpendicular to the vertical struts as needed, or a support structure including diagonal struts 23 some of which intersect obliquely. Alternatively, although not shown, a support structure may also be formed in which all struts are replaced by horizontal struts and are formed by diagonal struts 23 so as to be oblique to the vertical struts.

[0050] In the support structure 20, the hollow fiber-reinforced resin members having a substantially rectangular cross section that form the horizontal support 22 and the vertical support 21 are preferably made of a fiber-reinforced resin composite. The base resin material used for the hollow fiber-reinforced resin members can be either a thermoplastic resin or a thermosetting resin. Examples of thermoplastic resins that can be used include polypropylene resin, ABS resin, PC resin, PBT resin, PPO resin, and PA resin. However, if cost is not an issue, other engineering plastics such as PI resin, PAI resin, PPS resin, PEN resin, and PEEK resin may also be used.

[0051] In addition, urethane resin and epoxy resin can be used as thermosetting resins. Glass fibers are used as fibers for fiber-reinforced resin composites. Examples of glass fibers used here include short fibers, long fibers, and continuous long fibers. It is desirable to extrude the fiber-reinforced composite member so that the continuous long fibers in the spun state are wound at a predetermined angle and arranged in the product. It is desirable to use E-glass, an inorganic alkali glass such as quartz glass, as the glass used as the raw material to prevent a decrease in strength due to deterioration of the glass surface.

[0052] 3 is an enlarged perspective view of region III in FIG. 1. The trough-fixing support member 25 of this embodiment has an overall S-shaped configuration in which U-shaped portions are combined in opposite directions. As shown in the figure, the trough-fixing support member 25 is configured with an inverted U-shaped first fixing portion 25a and a normal U-shaped second fixing portion 25b, which are connected to each other. The inverted U-shaped first fixing portion 25a can be engaged with the horizontal support 22 to be fixed.

[0053] FIG. 4( a) is a vertical cross-sectional view taken along the arrows IV-IV in FIG. 3 . However, the illustration shows a resin trough placed thereon. Specifically, a trough 10 containing an electric wire / cable 3 is placed on the regular U-shaped second fixing portion 25b. The trough 10 is made of resin and includes a trough body 11 and a trough lid 12 placed and fixed on the trough body 11. The trough body 11 has a substantially U-shaped cross-section formed by a bottom plate 11b and side plates 11a standing substantially perpendicularly on both sides of the bottom plate 11b. The internal space of the substantially U-shaped cross-section serves as a storage section 11c for the electric wire / cable 3. The outer surfaces of the side plates 11a of the trough body may be formed with vertical ribs pointing upward to reduce weight and improve strength, and horizontal ribs of a predetermined length may be formed at predetermined positions on the side plates 11a to secure the trough lid 10. The trough lid 12 is fitted onto the upper surfaces of the upper ends of the side plates of the resin trough lid 10, and the upper surface of the trough lid 12 may have a protruding pattern (convex portion) formed thereon to prevent slippage, and protrusions or ribs that fit into the inside of the side plates to prevent misalignment may be formed on both sides of the back surface of the trough lid 12 in the width direction. Furthermore, a male portion 15 and a female portion 16 are formed at the leading and trailing ends of the trough body 11 in the longitudinal direction, respectively, as will be described later.

[0054] As shown in Figures 3 and 4(a) and (b), two screw holes 43 are drilled in opposing side surfaces of the trough fixing support member 25, corresponding to the first fixing portion 25a. These screw holes 43 are located further downward beyond the bottom of the engaged horizontal support 22. A bolt 45 can be passed through the screw hole 43, protrude from the screw hole on the opposite side, and tightened with a nut 44. In other words, two holes 43 are provided at symmetrical positions facing each other in the portion that extends downward beyond the horizontal support 22 so as not to obstruct the insertion of the bolt 45, and the bolt 45 is inserted into the two holes and tightened with a nut 44.

[0055] This allows the trough fixing support members 25 to be fastened and fixed to the horizontal struts 22. In this manner, in this embodiment, when fixing with the bolts 45 and nuts 44, there is no need to provide holes in the horizontal struts 22, and the trough fixing support members 25 can be fastened and arranged freely and easily anywhere on the horizontal struts 22 as long as they do not interfere with the vertical struts 21.

[0056] Furthermore, the degree of fastening can be adjusted as appropriate to suit the material and shape of the horizontal struts 22. This allows the trough-fixing support members 25 to be detachably attached to the strut structure 20. The material of the trough-fixing support members 25 is not particularly limited, and from the viewpoint of obtaining rigidity, impact strength, and corrosion resistance, aluminum or the like is preferable, but a fiber-reinforced resin composite material may also be used. Note that the above-mentioned attachment form of the trough-fixing support members 25 and the fastening with bolts and nuts through holes can also be applied to the diagonal struts 23 shown in Figure 2.

[0057] 4B is a partial cross-sectional view showing a state in which a screw hole 46 is drilled in the position of region B in FIG. 4 and fixed with a bolt 48 and a nut 47. In the trough-fixing support structure of this embodiment, in order to more stably fix the placed trough 10, as shown in the figure, it is preferable to provide a screw hole in the trough-fixing support member and align it with the screw hole on the trough side for fixation. When aligning these screw holes, the trough-fixing support member 25 of this embodiment is movable, making it easy to align the hole positions.

[0058] 4(c) shows a configuration in which the trough lid 12 is placed on the trough body 11 in region C of Fig. 4 and secured by tightening one of the four corners of the lid with a bolt 48 and a nut 47. A fastening structure similar to that shown in the figure is arranged at the four corners of the lid, and by tightening the four corners of the lid with bolts, the trough lid 12 is prevented from easily coming off and the shape of the resin trough 10 is maintained stably even against pressure such as wind. Although not specifically shown, the trough lid may also be secured with a buckle attached to the trough body rather than with a bolt.

[0059] FIG. 5 compares the cross section of a hollow structural support 27 made of a fiber-reinforced resin member, which may constitute the vertical support 21, horizontal support 22, diagonal support 23, and other supports constituting the support structure 20 shown in FIGS. 1 and 2 , with the cross section of a solid structural support 26 made of a fiber-reinforced resin member. As shown in FIG. 5( a), the cross section of the hollow structural support 26 has a substantially rectangular cross section, and the lengths of the long and short sides of the substantially square or rectangular cross section do not vary significantly. On the other hand, as shown in FIG. 5( b), the cross section of the fiber-reinforced resin member of the solid structural support 26 varies significantly in the ratio of the long and short sides. Therefore, when solid structural fiber-reinforced resin members are used as supports, the long sides of the horizontal support 22 or diagonal support 23 are abutted against the vertical support 21, taking into consideration the stability of the structure after attachment to the vertical support 21. Furthermore, by placing the trough fixing support member on the long side of the horizontal support 22 or the diagonal support 23, it is bolted in place so that it abuts against the long side of the first fixing portion 25a of the trough fixing support member 25, as described below.

[0060] FIG. 6 is a cross-sectional view showing an example in which a trough-fixing support member 25 is installed on horizontal struts 22 and / or diagonal struts 23 made of fiber-reinforced resin material of a solid structural support 26, and a resin trough 10 is supported on the trough-fixing support member 25. When the fiber-reinforced resin material of the solid structural support 26 is used as the support, the inverted U-shaped first fixing portion 25a is disposed across the horizontal struts and / or diagonal struts, similar to the arrangement when a hollow structural support 27 is used. Then, the trough 10 can be placed on the regular U-shaped second fixing portion 25b of the trough-fixing support member. In this case, the width of the support 26 having a solid cross section is smaller than the width of the support 27 having a hollow cross section. Therefore, only the width of the inverted U-shaped first fixing portion 25a of the S-shaped trough-fixing support member 25 is narrowed. Otherwise, if the dimensions of the trough 10 placed in the second fixing portion 25b are the same, the dimensions of the second fixing portion 25b are the same as when a hollow cross-section support is used. In other words, when a solid support 26 is used, the dimensions of the trough-fixing support member 25 remain the same except that the inner widthwise dimension of the first fixing portion 25a is shortened. As described above, a trough structure 2 can be constructed, which includes a support structure 20 formed by combining multiple hollow fiber-reinforced resin members and erected on a fixing surface, a support structure 100 having trough-fixing support members 25 detachably fixed to the support structure 20, and a resin trough 10 fixed to the trough-fixing support members 25 and spaced apart from the fixing surface. This effectively suppresses electrical leakage due to the distance from the fixing surface.

[0061] Figure 7 is a cross-sectional view showing a structure in which a metal trough is placed in place of the plastic trough, in the same field of view as Figure 4. In other words, it is a cross-sectional view taken along the arrows IV-IV in Figure 3, showing a state in which the metal trough 10A is placed on the trough fixing support member 25. As shown in this embodiment, the metal trough body 11A and the metal trough lid 12A are somewhat thinner than the plastic trough.

[0062] Fig. 8 is a cross-sectional view schematically showing a state in which a substantially C-shaped support base 28 is applied to the trough-fixing support member 25. Fig. 9 is a cross-sectional view schematically showing a state in which a flat support base 29 is applied to the trough-fixing support member 25.

[0063] As shown in the figures, the support bases 28, 29 have a generally C-shaped cross section that fits inside the regular U-shaped second fixing portion 25b of the trough-fixing support member 25 and allows the trough 10 to fit inside, and are shaped to have a length in the longitudinal direction (the direction perpendicular to the plane of the paper in Figures 8 and 9) that is approximately as long as the horizontal support 22. The second fixing portion 25b and the second fixing portion 25b are disposed at different positions in the longitudinal direction, and the support base 28 or the support base 29 is mounted and fixed on both of them. Furthermore, the trough bottom 11b of the trough 10 is disposed on top of them. This allows the support bases 28, 29 to mount and fix the trough 10 more stably along the longitudinal direction.

[0064] With regard to the number of trough fixing support members 25 when using support bases 28, 29, it is preferable to use two trough fixing support members 25 for one support base 28, 29. The reason for this is that supporting one support base from both sides with two or more trough fixing support members 25 provides more stable support. The material of the support bases 28, 29 is not particularly limited as long as it has a predetermined strength and corrosion resistance, but resin, aluminum, galvanized steel plate, etc. are preferred.

[0065] In this embodiment, the trough 10 may be made of any material and in any shape, but the trough 10 is assumed to be a commonly available product. For example, a resin trough is preferable, but a metal trough can also be used. Resin troughs are environmentally friendly, and recycled polyethylene, for example, can be used. Metal troughs, such as those made of galvanized steel, are economical, easy to process, lightweight, and corrosion-resistant.

[0066] 1, 3, and 4, the trough 10 has a bottom plate 11b with side plates 11a extending upward from both sides thereof to form a trough body 11 having a generally U-shaped cross section. The trough 10 is composed of the trough body 11 and a trough lid 12 that covers the trough body 11. The trough 10 has a connected structure (trough structure) that extends horizontally and is closely arranged, and is configured so that the electric wires and cables 3 can be stored in the storage section 11c.

[0067] The trough lid 12 is typically made of resin, similar to the trough body 11. Although not shown, the trough lid can be secured by fastening a buckle attached to a horizontal rib on the trough side wall to a buckle fastening portion on the trough lid. Alternatively, as described above with reference to Figure 4(c), a bolt 48 may be inserted into a threaded hole 46 provided in the trough lid 12, and then the bolt 48 may be further inserted into a threaded hole 46 in a horizontal rib provided on the outer surface of the side wall at the front and rear ends of the trough, and the tip of the bolt 48 may be secured with a nut 47.

[0068] In other words, the continuous arrangement (trough structure) 2 of the troughs 10 can be either a male-female connection structure of adjacent troughs 10, or a trough 10 consisting of only a trough storage section without a male-female connection structure, with a trough consisting of only a trough storage section without a male-female structure and a matching trough cover arranged closely together. Either of these troughs is placed on the second fixing portion 25b of the S-shaped trough fixing support member 25. There is no particular limit to the number of trough fixing support members 25, but from an economical standpoint, it is preferable to provide one or two troughs per trough.

[0069] Up to this point, the explanation of the supports has focused on the use of horizontal supports 22, but the same applies to the diagonal supports 23, such as the relationship between the trough 10 and the trough fixing support member 25, and is not to be interpreted in any limiting sense.

[0070] 10 is a side view schematically showing the position of the trough fixing support member relative to the trough. In this embodiment, the trough 10 placed on the trough fixing support member 25 is a trough structure 2 in which troughs of the same cross section are closely arranged. In this embodiment, an example is shown in which two trough fixing support members 25 are arranged symmetrically with respect to the center line CL at the front and rear ends of one trough 10. In this way, it is possible to stably place the trough 10.

[0071] 11 is a side view schematically illustrating another position at which the trough fixing support member is disposed relative to the trough 10. In this embodiment, one trough fixing support member 25 is disposed per trough in the longitudinal direction of the trough 10. In this case, it is preferable to support the trough 10 at a position spaced a predetermined distance from the longitudinal center of gravity GC of the trough 10 toward the female joint structure (female portion) 16. By disposing the trough fixing support member 25 in this position, the load on the male portion of the adjacent trough can also be supported via the female portion of the support member, thereby achieving an embodiment in which one trough fixing support member is disposed per trough.

[0072] In this way, by supporting a position a predetermined distance away from the center of gravity toward the female part, the advantage is obtained that a greater number of troughs can be stably supported and fixed with a smaller number of trough fixing support members 25 for the trough structure (continuous arrangement of troughs) 2.

[0073] The trough 10 of this embodiment is a continuous arrangement of fixed troughs, each having a trough body 11 with a generally U-shaped cross section and a trough lid 12. Furthermore, the continuous arrangement (trough structure) 2 of the troughs 10 may be either a male-female connection structure of adjacent troughs 10, or a structure in which the troughs 10 do not have a male-female connection structure and are composed only of trough storage sections 11c, and a trough 10 consisting of only the trough storage sections 11c without the male-female structure and a matching trough lid 12 are closely arranged. In this case, one of the troughs 10 is placed on the second fixing section 25b of the S-shaped trough fixing support member 25.

[0074] 12 is a cross-sectional view schematically showing a trough-fixing support structure in which resin troughs are arranged in multiple stages (four stages in this example) on one side of a vertical support 21. In this embodiment, a plurality of horizontal supports 22 are arranged in one side of the vertical support 21, which extends upward from the ground 1 (or may be a concrete foundation). Trough-fixing support members 25 are arranged in multiple stages on these horizontal supports 22.

[0075] 13 is a cross-sectional view schematically illustrating a trough-fixing support structure in which resin troughs are arranged in multiple stages on both sides of a vertical support column 21. In this embodiment, horizontal support columns 22 are arranged on both sides of the vertical support column 21. In the drawing, the horizontal support columns 22 are arranged on the left and right. This prevents a load from being applied to one side of the vertical support column 21, and the support structure 20 is fixed to the ground or a concrete foundation in a balanced manner.

[0076] Trough fixing support members are disposed on the left and right horizontal struts 22, and the trough is placed on the regular U-shaped second fixing portion. This embodiment is preferable in that a large number of electric wires can be efficiently extended using a small number of support struts. Even in this case, this embodiment has the advantage of providing a high degree of freedom in the installation position of the trough fixing support members 25, and is preferable in that stability of the trough fixing portion (second fixing portion) can be achieved. Note that, while an embodiment using the horizontal struts 22 has been described here with reference to Figures 10 and 11, this also applies to the case of the diagonal struts 23, and should not be interpreted as being limiting in any way.

[0077] As described above, in this embodiment, a trough structure can be provided, which includes a support structure 20 formed by combining multiple fiber-reinforced resin members and erected on a fixing surface; a support structure 100 having trough-fixing support members 25 detachably fixed to the support structure 20; and a resin trough 10 fixed to the trough-fixing support members 25 and spaced apart from the fixing surface, which is the ground or concrete ground 1. Furthermore, the trough-fixing support members 25 have a hook shape that can be detachably fixed to the fiber-reinforced resin members. As a result, by combining supports made of fiber-reinforced resin members, the troughs 10 can be installed in multiple tiers in a direction perpendicular to the ground. This makes it possible to install multiple troughs 10 without widening the trough path width as much as possible. Moreover, because the supports are made of fiber-reinforced resin members, the risk of electric shock is reduced even without grounding, and all parts are lightweight, a trough structure with good construction properties can be provided. In particular, when the troughs 10 are made of resin, the number of troughs 10 installed relative to the support structure 20 can be significantly greater than in the case of metal troughs, which is desirable.

[0078] In the above embodiment, the trough 10 is arranged in a straight line in the longitudinal direction, but it is also possible to adopt a direction change structure as described below. <Example of vertically gradient structure> Figure 14 is a side view that schematically shows a trough-fixing support structure 100 having a direction change structure in which the trough structure 2 is changed in direction from a horizontal arrangement to an oblique arrangement and is buried partway underground.

[0079] In the trough fixing support structure of this embodiment, the vertical support 21 is disposed perpendicular to the ground, and the diagonal support 23 is installed at an angle from the horizontal direction perpendicular to the vertical support 21. The angle of inclination may be selected appropriately according to the inclination of the ground when assembling.

[0080] Furthermore, the horizontal support 22 serving as a support member connecting the two vertical supports 21 may be simply fixed to the vertical supports 21 by welding or screwing, or may be rotatably fixed to the vertical supports 21. While two horizontal supports 21 are preferred, a trough bridge with a similar structure, in which a single support structure is formed with a roughly U-shaped support structure, may also be used. A trough bridge is typically used with vertical supports buried in the ground. Here, a trough bridge is configured in an H-shape or two-stage ladder shape by one or two support members with a roughly rectangular cross section that connect two parallel support posts, each of which also serves as a support pile, at a right angle at a predetermined height. A trough bridge is typically used with its supports buried in the ground. For example, representative trough bridge structures are disclosed in Japanese Patent Application Laid-Open Nos. 2018-33195, 2008-236830, and 2015-142387. Trough bridges may also be constructed slightly differently, as long as they perform the same function as above and use vertical columns buried underground to support various angle members. For example, angle members may be supported on support members above the support members of the trough bridge.

[0081] Figure 15 is a perspective view of the vertically inclined angle member 33. This angle member 33 allows the trough 10 to be configured to conform to the terrain, adapting to the topography. The vertically inclined angle member 33 is used when there is a vertical gradient and it is necessary to adjust the height and angle. This vertically inclined angle member 33 can be combined with an upwardly inclined trough 18a (shown in Figure 24(b)), which has a convexly bent path on the upper side of the trough, and a downwardly inclined trough 18b (shown in Figure 24(c)), which has a path bent in the opposite direction to the upwardly inclined trough 18a. Alternatively, the vertically inclined trough 18 can be configured and used by cutting a standard trough cross section to match the angle (not shown) to fit the trough to the angle member, thereby forming the vertically inclined trough 18 shown in Figure 24(a) (the symbol A in the figure is an auxiliary line indicating the boundary between the upwardly inclined trough 18a and the downwardly inclined trough 18b). 16, the trough fixing support structure may include a direction change structure in which the trough 10 structure, supported and fixed by the trough fixing support members 25 to the horizontal support columns 22 of the trough 10 structure, is guided downward in a direction different from that of the trough 10 fixed to the horizontal support columns by the trough fixing support members 25, using vertically inclined angle members 33 as branching members and arranging the vertically inclined angle members 33 between the straight angle members. A similar direction change structure can be obtained by directly fixing the parallel angle members and the vertically inclined angle members 33 fixed by bolts to the horizontal support columns 22 fixed to the vertical support columns 21, or by fixing the parallel angle members and the vertically inclined angle members 33 to a trough bridge instead of the horizontal support columns 22.

[0082] <Example of T-shaped Branch Structure> Figures 21 and 22 are schematic diagrams showing a trough-fixing support structure capable of branching a trough into a T shape. Figure 20 is a side view, and Figure 21 is an exploded view of the components used for assembly. As shown in Figures 20 and 21 , in a trough-fixing support structure 100 similar to that shown in Figure 1 , etc., a T-shaped angle member 31 is fixed to two trough-fixing support members 25. A trough pier 50 is positioned and fixed to the bottom of the T-shaped angle member 31, and the trough pier 50 is fixed upright to the ground. This allows the T-shaped angle member 31 to be stably supported and fixed in the trough-fixing support structure 100. A T-shaped branch trough 35 is placed on this T-shaped angle member 31. The T-shaped branch trough 35 has openings 36a, 36b, and 36c in three directions, and other troughs can be fixed to each opening, forming a continuous trough structure. Region 61 of the T-shaped angle member 31 indicates an example of a location where the trough fixing support member 25 is positioned and supported. FIG. 17 is a perspective view schematically illustrating an example of a T-shaped branch angle member 31. This angle member allows the trough, supported and fixed by the trough fixing support member 25 to any horizontal or diagonal support of the support structure 20 in the trough fixing support structure 100, to be branched by a branch member. Similarly, this member can be fixed by bolting at least a portion of the T-shaped branch angle member 31 to the side of the horizontal or diagonal support, or by supporting and fixing the T-shaped branch angle member 31 using a trough bridge or the like. A T-shaped branch trough can be placed and fixed on this member. Although no specific drawings are shown showing the T-branch trough placed on the T-branch angle member 31 and supported and fixed to horizontal or diagonal supports or a trough bridge, the T-branch trough 35 can be placed on the T-branch angle member 31 and supported and fixed using any of the horizontal supports, diagonal supports or trough bridges.

[0083] As shown in FIG. 19 , the trough pier 50 has an H-shaped or two-stage ladder-shaped structure in which at least two opposing vertical struts 51, which also serve as parallel support piles, are connected by one or two horizontal struts 52 spaced a predetermined distance apart that roughly corresponds to the width of the trough. Furthermore, the horizontal struts 52 of the trough pier 50 are configured in one or two stages, and the vertical struts 51 and the horizontal struts 52 are fixed by welding or bolts. Here, the second stage strut does not necessarily have to be fixed and may be rotatable. When the horizontal strut 52 has one stage, the trough 10 is placed directly on the horizontal strut 52. When the horizontal struts 52 have two stages, the trough 10 is placed on the upper horizontal strut 52. While two vertical struts 51 are preferred, a trough pier structure having a roughly U-shaped support structure formed on a single vertical strut may also be used. Here, it is preferable that the vertical support 51 has a thin, pointed tip so that it can be easily inserted into the ground. Also, it is preferable that the vertical support 51 used has an L-shaped or rectangular cross section as shown in the figure.

[0084] <Example of Bent Structure> The following describes a specific direction-changing structure in which branch elements, such as bent angle elements, S-shaped bent angle elements, or reverse S-shaped bent angle elements, are bent. Figure 18 is a schematic perspective view of a C-shaped bent angle element 32. The angle element 32 of this embodiment can be used to bend and position electric wires and troughs. This angle element 32 consists of two L-shaped rails 41 that bend at a predetermined radius of curvature (R) and splints 42 positioned at key locations to secure the two rails. This element can be bolted to the sides of horizontal or diagonal supports, or the bent angle element can be supported and fixed by a trough bridge or similar. A bent trough 17, as shown in Figure 23, can be placed and fixed on this element. Although the drawings do not specifically show the curved trough 17 mounted on the curved angle member 32 fixed to a horizontal support, a diagonal support, or a trough bridge, a curved trough 17 having a curvature that matches the curvature of the curved angle member 32 can be used.

[0085] Figure 20 is a perspective view showing a schematic diagram of an S-bend angle member 34. The aforementioned direction change structure preferably includes an S-bend angle member 34 or an inverse S-bend angle member (not shown). This allows the trough to be guided more stably around the bend without excessive strain. These members are supported by support members such as a trough bridge, and a bent trough is placed and connected to these members. By connecting the trough to the end of the trough before the branch at the branch section, a direction change structure using a branch member can be obtained. In this case, the S-bend angle member 34 can be bolted to the side of a horizontal or diagonal support column, or supported and fixed on a trough bridge. Furthermore, when various troughs are fixed to a trough bridge, the angle member and the trough can be fixed to each other by attaching a retaining bracket to the L-shaped trough. Both the S-bend angle member 34 and the inverse S-bend angle member can be connected to a 45° bent trough inverted to obtain a direction change structure. For example, in the case of an S-shaped bent angle member 34, the center of curvature of the 45° bent trough on the upper side can be oriented to the right, and the center of curvature of the 45° bent trough on the lower side can be oriented to the left. In the case of an inverse S-shaped bent angle member, the center of curvature of the 45° bent trough on the upper side can be oriented to the left, and the center of curvature of the 45° bent trough on the lower side can be oriented to the right.

[0086] The present invention provides a suitable method for supporting and fixing a trough structure. Specifically, the method comprises the following steps: Fiber-reinforced resin members having a hollow structure and a generally rectangular cross section are used as the horizontal supports 22 or the diagonal supports 23 and the vertical supports 21, and a plurality of the vertical supports 21 are buried in the ground at predetermined intervals or supported and fixed with concrete.

[0087] Next, the method includes a process of assembling the horizontal support 22 or the diagonal support 23 on one or both sides of the vertical support 21 using one or more stages of fixing bolts so that the horizontal support 22 or the diagonal support 23 is approximately perpendicular or diagonal to the vertical support 21, thereby forming the support structure 20, and a process of further providing the support structure 20 with multiple S-shaped trough fixing support members 25.

[0088] More specifically, the S-shaped trough fixing support member 25 has an inverted U-shaped first fixing portion 25a and a regular U-shaped second fixing portion 25b that are continuous with each other, and includes a step of engaging and fixing the inverted U-shaped first fixing portion 25a to the horizontal support 22 or the diagonal support 23, and a step of placing the trough 10 on the regular U-shaped second fixing portion 25b. Through these steps, a trough fixing support structure 100 that supports a metal or resin trough structure 2 can be obtained.

[0089] The supporting and fixing method according to one embodiment of the present invention further employs the following step: A step of adjusting the tightness of the bolts 45 and nuts 44 that fix the inverted U-shaped first fixing portions 25a, which are installed on the horizontal struts 22 or the diagonal struts 23 of the trough-fixing support members 25, to the trough-fixing support members 25 via the screw holes 43 can be provided.

[0090] This makes it easy to add, remove, or perform maintenance on cables arranged in the metal or resin trough structure 2. Through these processes, the trough structure 2, which is made up of connected metal or resin troughs, can be supported by the trough fixing support structure 100 over a long distance in multiple stages as needed.

[0091] As described above, the present invention can provide a trough line having various direction change structures, including a trough fixing support structure in which a trough is arranged and fixed using a trough fixing support member on a support structure that combines a vertical support with either a horizontal support or a diagonal support, and a trough fixing support structure in which various angle members are combined with this, and a branch structure and direction change. Also, a support and fixing method for a trough structure that supports a trough using horizontal support, diagonal support, and vertical support can be provided.

[0092] Furthermore, the trough fixing support structure of the present invention uses a trough fixing support member having an S-shaped structure with an inverted U-shaped first fixing portion and a normal U-shaped second fixing portion. Meanwhile, the present invention also includes an invention of a trough fixing support member having the above-mentioned structure. By using the trough fixing support structure of the present invention, troughs can be laid in multiple layers above and below the support pillars or on both sides of the support pillars, which has the advantage of allowing multiple troughs to be arranged in parallel even in a small space, and also facilitating maintenance of the cables placed inside. In addition, by using various angle members as branch members in the trough fixing support structure, a direction change structure from the trough fixing support structure can be provided.

[0093] DESCRIPTION OF SYMBOLS 1: Ground or concrete ground (fixing surface) 2: Trough structure (trough connection arrangement) 3: Electric wire / cable 10: Trough (plastic trough) 10A: Metal trough 11: Trough body 11A: Metal trough body 11a: Trough side plate 11b: Trough bottom plate 11c: Trough body storage section 12: Trough lid 12A: Metal trough lid 15: Male part (male joint structure) 16: Female part (female joint structure) 17: Curved trough 18: Up-and-down sloping trough 18a: Up-sloping trough 18b: Down-sloping trough 20: Support structure 21: Vertical support 22: Horizontal support 23: Diagonal support 24: Support fixing member 25: Trough fixing support member (trough fixing hook) 25a: Inverted U-shaped structure (first fixing part) 25b: Regular U-shaped structure (second fixing part) 26: Solid structural support 27: Hollow structural support 28: C-shaped support base 29: Flat support base 31: T-shaped branch angle member 32: Bent angle member 33: Up and down slope angle member 34: S-shaped curved angle member 35: T-shaped branch trough 36a, 36b, 36c: Opening 41: Rail 42: Splice plate 43, 46, 54, 64: Screw holes 44, 47: Nuts 45, 48: Bolts 50: Trough pier 51: Vertical support column of trough pier 52: Horizontal support column of trough pier (horizontal support member) 53: Horizontal support column for placing trough (horizontal support member) 61: Area indicated by trough fixing support member 100: Trough fixing support structure

Claims

1. A support structure assembled by using hollow fiber-reinforced resin members with a substantially rectangular cross section as horizontal and / or diagonal and vertical supports, and by fixing the horizontal supports to one or both sides of a plurality of vertical supports that are buried in the ground or supported and fixed by concrete at predetermined intervals, with at least the horizontal supports being approximately perpendicular to the vertical supports, or the diagonal supports being oblique to the vertical supports, with one or more stages of fixing bolts, and the support structure further comprising a plurality of S-shaped trough fixing support members, The trough fixing support structure is characterized in that the S-shaped trough fixing support member has an inverted U-shaped first fixing portion and a regular U-shaped second fixing portion that are integrally connected to each other, and the inverted U-shaped first fixing portion can be engaged and fixed to any position of the horizontal support or the diagonal support where the horizontal support or the diagonal support does not interfere with the vertical support, and multiple troughs can be placed on the regular U-shaped second fixing portion of the multiple trough fixing support members.

2. The support structure is a support structure assembled by assembling at least either the horizontal or diagonal supports with one or more stages of fixing bolts, the trough is a trough structure in which troughs are arranged in succession, with trough lids capped and fixed to trough bodies having a roughly U-shaped cross section, the successive arrangement of the trough structures is either a male-female connection structure for adjacent troughs, or the trough structure does not have a male-female connection structure and is composed only of trough storage sections, and troughs consisting only of trough storage sections and matching trough lids are arranged closely together, the trough structure is a trough structure arranged on either a horizontal or diagonal support column arranged on one or both sides of the vertical support, and the trough of the trough structure is placed on the second fixing section of the S-shaped trough fixing support member.

3. A trough fixing support structure as described in claim 2, characterized in that in the first fixing portion of the S-shaped trough fixing support member, when the inverted U-shaped first fixing portion is erected on the horizontal support or the diagonal support, two holes are provided at mutually opposing symmetrical positions in a portion that extends downward beyond the position corresponding to the underside of the cross section of either the horizontal support or the diagonal support so as not to hinder the insertion of the bolt when the inverted U-shaped first fixing portion is erected on the horizontal support or the diagonal support, and the trough fixing support member is fixed to the horizontal support or the diagonal support by inserting bolts into the two holes and tightening them with nuts.

4. A trough fixing support structure as described in claim 3, characterized in that the second fixing portion of the trough fixing support member and the bottom of each trough of the trough structure placed on the second fixing portion are simply placed on the second fixing portion, or bolt insertion holes are provided at predetermined positions on the second fixing portion and the bottom of each trough of the trough structure placed on the second fixing portion, and bolts are inserted into the bolt insertion holes and fixed to the second fixing portion with nuts.

5. A trough fixing support structure as described in claim 2, characterized in that one or two trough fixing support members are provided for each trough of the trough structure when the trough structure is fixed to the horizontal support or the diagonal support that constitutes the trough fixing support structure.

6. A trough fixing support structure as described in claim 2, characterized in that when each trough of the trough structure is arranged and fixed, one per trough, in the longitudinal direction of the trough to the horizontal support pillars constituting the trough fixing support structure, the trough fixing support member supports a position spaced a predetermined distance from the center of gravity of the trough to the center of gravity of the female joint structure.

7. A trough fixing support structure as described in claim 2, characterized in that a long, flat or approximately C-shaped support base is placed between the trough bottom of the trough structure placed on the second fixing portion of the trough fixing support member and the second fixing portion.

8. A trough fixing support structure as described in claim 1, characterized in that the troughs placed on the trough fixing support member are metal troughs having the same cross-sectional shape in the longitudinal direction, and the metal troughs are fixed to the trough fixing support member in a state where they are abutted against each other and arranged continuously, or the metal troughs are fixed to the trough fixing support member with gaps between them and the gaps covered with cover members.

9. A trough fixing support structure according to any one of claims 1 to 8, characterized in that, instead of hollow fiber reinforced resin members with an approximately rectangular cross section, solid fiber reinforced resin members with an approximately rectangular cross section are fixed to the horizontal and diagonal supports by abutting the long sides of at least one of the horizontal and diagonal supports with an approximately rectangular cross section against the vertical supports.

10. A trough fixing support structure according to any one of claims 1 to 8, characterized in that the fiber reinforced resin member having a hollow or solid structure and a substantially rectangular cross section is a fiber reinforced resin composite material composed of at least one of a thermoplastic resin or a thermosetting resin and glass fibers consisting of long filamentous fibers, and the glass fibers are arranged on the surface of the fiber reinforced resin member as a continuous body of long filamentous fibers.

11. A trough fixing support structure according to claim 10, characterized in that the fiber reinforced resin member of the trough fixing support structure is made of a thermoplastic resin or a thermosetting resin, the thermoplastic resin being one of polypropylene resin, ABS resin, PC resin, PBT resin, PPO resin, and PA resin, or the thermosetting resin being one of urethane resin and epoxy resin, and the glass fibers being long fibers arranged on the surface of the fiber reinforced resin member either parallel to the longitudinal direction or wound at a predetermined angle, or wound intertwined at a predetermined angle.

12. The trough fixing support structure according to claims 2 to 7 is a support structure assembled by assembling the horizontal or diagonal supports with multiple stages of fixing bolts, and is characterized in that it includes a direction-changing structure that directs some of the troughs of the trough structure fixed to the horizontal or diagonal supports of the support structure in a direction different from the original arrangement direction of the troughs of the trough structure by fixing the horizontal or diagonal supports of another support structure to the other support structure at a predetermined angle horizontally or vertically relative to the horizontal or diagonal supports of the support structure so that they are connected to at least one end of the multiple stages of horizontal or diagonal supports in a different direction, diagonally downward or diagonally to the side.

13. The trough fixing support structure according to claims 2 to 7 is characterized in that it includes a direction-changing member that guides some of the troughs of the trough structure, which are supported and fixed by the trough fixing support members to either the horizontal support columns or the diagonal support columns of the trough structure, in a direction different from the original arrangement direction of the troughs of the trough structure, which are fixed to the horizontal support columns or the diagonal support columns of a support structure other than the support structure.

14. A support structure for fixing a trough including a direction change structure as described in claim 13, characterized in that the direction change member is either an up-down inclined angle member or a T-shaped branch angle member, and the direction change structure using the direction change member is either a direction change that guides the trough in a different vertical direction while facing in the same direction as the original direction before being connected to the direction change member in a plan view, or a direction change that branches off in a direction different from the original direction before being connected to the direction change member.

15. A trough fixing support structure including a direction change structure as described in claim 13, characterized in that the direction change member is a branched member including a bent portion of either a bent angle member, an S-shaped bent angle member or an inverted S-shaped bent angle member, and the direction change structure using the direction change member is a direction change structure including a structure that uses any of these direction change members to guide the trough in a bent direction different from the original direction before it was connected to the direction change member in a plan view.

16. A trough railway including a direction change structure according to claim 13, characterized in that it has a trough fixing support structure.

17. A method for supporting and fixing a trough structure, in which a trough is supported by a trough fixing support structure having a support structure assembled by using hollow fiber reinforced resin members with a substantially rectangular cross section as horizontal, diagonal and vertical supports, and by fixing the horizontal or diagonal supports to one or both sides of the vertical supports, which are buried in the ground or supported and fixed with concrete at predetermined intervals, with one or more stages of fixing bolts so that the horizontal or diagonal supports are mutually substantially perpendicular or oblique to the vertical supports, wherein the support structure further comprises a plurality of S-shaped trough fixing support members, A method for supporting and fixing a trough structure, characterized in that the support members for fixing the troughs are configured with an inverted U-shaped first fixing portion and a regular U-shaped second fixing portion that are connected to each other, the inverted U-shaped first fixing portion is engaged with and fixed to the horizontal support or the diagonal support, a trough structure having a plurality of troughs arranged in succession is placed on the regular U-shaped second fixing portion of the support members for fixing the troughs, and the trough structure is supported by the trough fixing support structure.

18. A method for supporting and fixing a trough structure as set forth in claim 17, characterized in that the method for supporting and fixing a trough structure comprises adjusting the tightness of the bolts and nuts that secure the trough fixing support member to the inverted U-shaped first fixing portion that is erected on the horizontal or diagonal support of the trough fixing support member, thereby supporting a metal or resin trough structure with a trough fixing support structure, which allows for the addition / deletion or maintenance of cables arranged in the metal or resin trough structure.

19. A trough fixing support member is an S-shaped trough fixing support member, comprising an inverted U-shaped first fixing part and a regular U-shaped second fixing part, wherein the first fixing part has two holes symmetrically arranged at opposing positions in the part that extends downward beyond the horizontal or diagonal pillar when the inverted U-shaped first fixing part is erected on a horizontal or diagonal pillar, and wherein bolts can be inserted into the two holes and tightened with nuts, and the second fixing part, which is a regular U-shaped opening beyond the first fixing part, has a structure that allows a metal or resin trough structure to be placed on it.

20. A trough fixing support member as described in claim 19, characterized in that when the trough fixing support member used for a solid structure support is attached to a horizontal or diagonal support of a solid structure having an approximately rectangular cross section, the support is attached using the long side of the solid structure as the attachment surface, so that the inner surface width of the inverted U-shaped first fixing portion approximately matches the short side of the solid structure having an approximately rectangular cross section, and the length of the U-shaped first fixing portion is formed to a dimension that allows a bolt hole to be provided in the portion that extends below the long side of the cross section of the horizontal or diagonal support.

21. A trough structure comprising: a support structure formed by combining a plurality of fiber-reinforced resin members and erected on a fixed surface; a support structure having a trough fixing support member detachably fixed to the support structure; and a resin trough fixed to the trough fixing support member and disposed at a distance from the fixed surface.

22. The trough structure according to claim 21, wherein the trough fixing support member has a hook shape that can be detachably fixed to the fiber reinforced resin member.

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