JP7341914B2 - protective cover - Google Patents

Description

The present invention relates to an elongated protective cover consisting of a base fixed to a wall surface and a lid that is assembled to the base and forms a housing space for elongated wiring and piping materials inside. It is.

As the elongated protective cover described above, the one disclosed in Patent Document 1 is known. This protective cover constitutes a base fixed to a wall surface, and has a concave engaged portion formed on the outside of the base end of a pair of holding pieces that hold the piping material, and a lid body. A convex engaging portion is formed on the inner surface of the tip end portion (the side close to the wall surface in the installed state) of the pair of side plates that constitute the pair, and wiring/piping materials are formed in the accommodation space between the pair of holding pieces of the base. When the lid is placed over the base while holding the holder, the engaging part of the lid engages with the engaged part of the base, and the base and the lid are integrated. It is a configuration that can be assembled.

The protective cover of Patent Document 1 accommodates and holds piping material between a pair of holding pieces of a base, and connects the pair of holding pieces and the wiring/piping material as an inner part of the engaged portion of the base. Therefore, when the pair of holding pieces expands outward while the piping material is being held, or when the piping material swings due to the water hammer phenomenon, the engaged state becomes unstable. In severe cases, there was a problem that the lid could come off.

Further, in the protective cover disclosed in Patent Document 2, the pair of holding pieces constituting the base have a double wall structure inside and outside with a space in the middle, and the protective cover has a structure that corresponds to the outer diameter of the piping material. Since the inner and outer walls constituting each holding piece cooperate to bend and deform outward, it is possible to accommodate and hold a plurality of piping materials having different outside diameters. However, since the holding piece is constituted by the inner and outer walls having a space in the middle, there is a problem that the protective cover becomes wider and larger.

Japanese Patent Application Publication No. 06-016799 Japanese Patent Application Publication No. 2007-292174

The present invention allows the wiring and piping materials to be held not only from both sides by the pair of holding pieces of the base, but also by supporting the wiring and piping materials from diagonally below. An object of the present invention is to reduce the deformation of the engaged portion on the outside of the lower end, thereby stabilizing the engagement state between the base and the lid and the holding of wiring and piping materials.

The invention of claim 1 for solving the above problem comprises: a base having a base fixed to a wall surface; and a lid that forms a housing space for wiring and piping materials by assembling with the base. A long protective cover consisting of
The lid body has a top wall facing the base, and an engagement portion formed on the inner surface of the tip side to engage with and be assembled to an engaged portion formed on the base, and the width of the top wall is adjusted. a pair of side walls formed to hang down toward the base from both ends of the direction,
On the base, a pair of holding pieces are arranged facing upwards from the base so as to hold the wiring/piping materials arranged therebetween from both sides, and
The pair of holding pieces can receive the wiring/piping material between them by separating from each other due to elastic deformation at their tips, and have an elastic restoring force to return to the original position. On the proximal end side, the engaged part is formed which stands up from the base, is bent outward in the width direction to be recessed outward, and is engaged with the engaging part;
A pair of auxiliary support pieces are provided between the pair of holding pieces, extending from the base toward the holding piece on the adjacent side,
The pair of auxiliary support pieces are pressed by the received wiring/piping material, and are movable toward the base side of each of the holding pieces so that their tips are separated from each other. It is characterized in that the holding piece on the far side of the pieces is configured to abut against the lower outer circumferential surface of the wiring/piping material while a biasing force is generated toward the inner surface on the tip side.

According to the invention of claim 1, the pair of auxiliary support pieces are provided at the base of the base constituting the protective cover and extend toward the adjacent holding piece of the pair of holding pieces, and When the wiring/piping material is inserted into the internal storage space between the tips of the holding pieces and received, the pair of holding pieces are deformed outward, and the elastic restoring force causes the said holding pieces to return to their original positions. Both sides of the wiring/piping material are held, and the pair of auxiliary support pieces are pressed toward the base by the pressure of the wiring/piping material, and the tips of the pair of auxiliary support pieces are spaced apart from each other. The holding piece is elastically deformed toward the proximal end of the holding piece on the adjacent side. As a result, when the pair of auxiliary support pieces are pressed toward the base of the base, the elastic restoring force that tries to return to the original shape is exerted on the held wiring/piping material by one of the pair of holding pieces. Each acts as a biasing force toward the tip of the holding piece on the far side, and the pair of auxiliary support pieces abuts against the outer surface of both diagonal lower portions of the wiring/piping material with the biasing force.

In this way, the wiring/piping materials accommodated in the accommodation space between the pair of holding pieces that make up the base are not only held on both sides by the elastic restoring force of the pair of holding pieces, but also held between the pair of holding pieces. Both diagonal lower parts are also supported by the elastic restoring force of the auxiliary support pieces, so that the wiring/piping material is held at four or two opposing places on both sides by the pair of holding pieces, and at the same time Since the auxiliary support pieces provide auxiliary support at two locations on both diagonal lower parts, the holding state of the wiring and piping materials is stabilized, and even if the amount of outward deformation of the pair of holding pieces is completely eliminated, the wiring can still be maintained. - Since it is possible to hold the piping material, the engagement state between each engaged part formed on the outside of the base end of each holding piece of the base and the engaging part of the lid body is stabilized, and the base There is no fear that the lid will come off.

When the pair of auxiliary support pieces that auxiliary support the two diagonally lower parts of the wiring/piping material are made to be easily deformed elastically with respect to the pair of holding pieces, the pair of holding pieces maintains its original shape without being elastically deformed. As the pair of auxiliary support pieces remain in place, only the pair of auxiliary support pieces are elastically deformed, and the pair of holding pieces are simply in contact with the outer surface of the wiring/piping material without applying any biasing force. It is also possible to support the wiring and piping by applying an upward biasing force using the auxiliary support piece. In this case, the pair of holding pieces maintains its original shape perpendicular to the base of the base, and in this state, the engaged portion of the base and the engaging portion of the lid are engaged. This has the advantage that the engaged state is further stabilized.

In addition, in the wiring/piping material, the pair of holding pieces does not deform or hardly deforms, that is, the pair of auxiliary supporting pieces out of a total of four pieces, the pair of holding pieces and the pair of auxiliary supporting pieces. The diagonally upward biasing force due to elastic deformation is the main force, and it is received in the accommodation space between the pair of holding pieces, so a pair of auxiliary support pieces that auxiliary support the two locations on the lower side of the wiring/piping material. By making the amounts of elastic deformation different, it becomes possible to hold a plurality of wiring/piping materials having different outer diameters at four or six locations in total.

The invention according to claim 2 is the invention according to claim 1, wherein the base is provided with a movement restriction part that restricts further movement toward the base by abutting the tip of each of the auxiliary support pieces. It is characterized by the presence of

According to the invention of claim 2, each auxiliary support piece comes into contact with each movement regulating portion provided on the base and its movement (deformation) is regulated, so that each auxiliary support piece The wiring/piping material that is held between each holding piece of the base while in contact with both diagonal lower parts of the base is fixed because the deformed shape of each auxiliary support piece is determined, so the wiring/piping material cannot be held. Stabilize. In addition, the shape of the pair of holding pieces is such that the wiring/piping material accommodated and held between the pair of holding pieces has a maximum outer diameter in the abutment state in which each auxiliary support piece is moved (deformed) to the maximum. When , the amount of deformation of the pair of holding pieces is eliminated and the wiring/piping material with the maximum outer diameter can be held in its original shape when it is held. As a result, while the wiring/piping material is held on the base, deformation of the engaged portion on the outside of the proximal end of each holding piece can be minimized, and the state of engagement between the base and the lid body is also stabilized. .

The invention according to claim 3 is characterized in that, in the invention according to claim 2, the movement restricting portion is an upper surface of a portion of the base end portions of the pair of holding pieces that is bent outward in the width direction.

According to the invention of claim 3, in order to form a concave engaged portion on the outside of the base ends of the pair of holding pieces, the base ends of the pair of holding pieces are bent outward in the width direction. Since the portion is inevitably formed, the upper surface portion of the bent portion, which has a concave inner surface, can be used as the movement restriction portion without providing a separate movement restriction portion.

The invention according to claim 4 is characterized in that, in the invention according to any one of claims 1 to 3, the pair of auxiliary support pieces are formed in a curved shape that bulges toward the accommodation space in the middle in the extending direction. It is said that

According to the invention of claim 4, since the pair of auxiliary support pieces are formed in a curved shape that bulges toward the storage space in the middle in the extending direction, the wiring/piping material that is being stored in the storage space can be When each auxiliary support piece is pressed downward, each auxiliary support piece always maintains its original shape or a shape close to this, and moves an amount (deformation amount) corresponding to the outer diameter of the wiring/piping material. The holding piece is moved (deformed) toward the adjacent holding piece of the pair of holding pieces, and is not moved in the opposite direction or buckled by the pressing force.

In the invention according to claim 5, in the invention according to any one of claims 1 to 4, the base end portions of the pair of holding pieces are bent outward in the width direction, and the holding pieces extend from the tip of the bent portion to the base portion. further, each tip of each vertically extending portion extends close to each other,
The interval between the vertically extending portions of the pair of holding pieces has a dimension corresponding to the diameter of the first wiring/piping material to be held,
Furthermore, in order to accommodate a second wiring/piping material having a relatively smaller diameter than the first wiring/piping material,
The distance between the tips of the pair of holding pieces is narrower than the outer diameter of the second wiring/piping material,
When the pair of auxiliary support pieces receive the second wiring/piping material,
The amount of movement in the separation direction between the ends is smaller than when the first wiring/piping material is received, so that the position of the end of each auxiliary support piece with respect to the engaged part is The inner surface on the tip side of each auxiliary support piece is in contact with the outer surface of the second wiring/piping material in a state where they are spaced apart compared to when the piping material is received, and the holding piece on the far side of the pair of holding pieces is It is characterized by being biased toward the inner surface of the tip side.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, in which the shape of the pair of holding pieces constituting the base is specified, and each of the first and second wiring/piping materials having different outer diameters is The dimensions of the pair of holding pieces and the pair of auxiliary support pieces that make up the base, and the positions of each part before and after movement (deformation) are determined by comparison with the figure.

According to the present invention, the wiring/piping material accommodated in the accommodation space between the pair of holding pieces constituting the base is not only held at both sides by the elastic restoring force of the pair of holding pieces; Both diagonal lower parts are also supported by the elastic restoring force of the pair of auxiliary support pieces, that is, the wiring/piping material is held at four or two opposing places on both sides by the pair of holding pieces, and Since the pair of auxiliary support pieces provides auxiliary support at two locations on both diagonal lower parts, the holding state of wiring and piping materials is stabilized, and the amount of outward deformation of the pair of support pieces is reduced. Since it is possible to hold wiring and piping materials, the state of engagement between each engaged part formed on the outside of the proximal end of each holding piece of the base and the engaging part of the lid body is also stabilized, There is no fear that the lid will come off from the base. In addition, the wiring/piping material has a total of four pieces, a pair of holding pieces and a pair of auxiliary support pieces, which are elastically deformed and received in the accommodation space between the pair of holding pieces. By varying the amount of elastic deformation, it is possible to hold multiple wiring/piping materials with different outer diameters.

The lower end side of the wiring/piping material accommodated in the storage space of the base is supported by a pair of auxiliary support pieces that are curved in such a way that the side of the storage space bulges out, so that the wiring/piping material is kept in the accommodated state. Also, since each auxiliary support piece supporting the lower end side of the wiring/piping material is elastically deformable, the lower end side of the wiring/piping material is in a state as if it were supported by a cushioning material. Therefore, even if the wiring/piping material is swayed due to the water hammer phenomenon, the oscillation is absorbed by the elastic deformation of each auxiliary support piece, and the engaging portion between the base and the lid body will not be deformed. Therefore, there is less risk of disengagement between the base and the lid.

FIG. 2 is a perspective view of a separated state of a base V and a lid L that constitute a protective cover C of the present invention. It is also a sectional view. (a) is a cross-sectional view of a state in which the pair of holding pieces 11 of the base V are deformed outward to the maximum and a part of the large-diameter piping material P ₁ is inserted into the accommodation space K; b) is a sectional view of a state in which almost the entire piping material P ₁ is accommodated in the accommodation space K. (c) is a sectional view of a state in which the piping material P ₁ is further pressed to move (deform) the pair of auxiliary support pieces 17 to the maximum in the state of (b). (a) is a sectional view of a state in which the pair of holding pieces 11 of the base V are deformed outward and a part of the small-diameter piping material P ₃ is inserted into the accommodation space K thereof, and (b) is a sectional view of the pair of holding pieces 11 of the base V. , is a cross-sectional view of a state in which the piping material P ₃ is accommodated in the accommodation space K. FIG. 3 is a sectional view of a state _in which a piping material P 2 having an outer diameter D ₂ intermediate between the piping materials P ₁ and P ₃ is accommodated in an accommodation space K of a base V. FIG. (a) and (b) are sectional views of a state in which a lid L is covered with respect to a base V, and piping materials P ₁ and P ₃ are housed and protected.

Hereinafter, the present invention will be explained in more detail by citing the best embodiment. In FIGS. 1 and 2, the elongated protective cover C has a base V fixed to the wall W of the building, and a housing space K for the piping materials P ₁ to P ₃ is created by assembling the base V. It consists of a lid body L to be formed. The base V and the lid L are both formed by extrusion molding of resin, so that the base V has a free end, a pair of holding pieces 11, a pair of auxiliary support pieces 17, and the lid L, which will be described later. The pair of side walls 22 and the connection portion of the top wall 21 connected to each side wall 22 are elastically deformable.

The base V has a symmetrical shape in a cross-sectional view, and includes a base 1 having a concave-convex plate shape, and a pair of holding pieces 11 on the upper surface of the base 1 slightly inside the widthwise ends thereof. It is erected perpendicularly to the base 1 and facing upward. The base 1 has an upper part formed at both ends in the width direction of the fixed plate part 2 in the center part in the width direction to form a pair of positioning grooves 3 into which another base V or a pair of positioning pieces of the terminal cover are inserted. The raised raised plate part 4 is formed parallel to the fixing plate part 2, and furthermore, a part of the recessed engaged part 5 is formed at the outer end in the width direction of the raised raised plate part 4. An inclined plate part 6 and a close contact plate part 7 that closely contacts the wall surface W are continuously formed. Since the base V is fixed to the wall surface W via fixing screws at the fixing plate part 2, a guide is provided at the center of the upper surface of the fixing plate part 2 in the width direction to guide the placement position of the fixing screw. A guide groove 8 is formed over the entire length.

In the pair of holding pieces 11, a slightly upper portion of each holding piece base end 12 that is directly connected to the base 1 is bent to be inclined outward in the width direction, so that each inclined bent part 13 is bent, respectively. Each body holding piece 14 is formed perpendicularly to the base 1 at the oblique upper end of each of the inclined bending parts 13, and the upper end of each body holding piece 14 includes: The curved holding pieces 15 are each formed to be curved inward, and the distance A between the tips of each curved holding piece 15 when not deformed is equal to the accommodation space K between the pair of holding pieces 11. It is formed to be narrower than the outer diameter D ₃ of the smallest piping material P ₃ among the plurality of piping materials P ₁ to P ₃ held. The opening between the tips of the pair of curved holding pieces 15 serves as an insertion opening (receiving opening) 10 for the piping materials P ₁ and P ₂ . Therefore, all the piping materials P ₁ to P ₃ are bent by elastically deforming the opposing curved holding pieces 15 and the main body holding pieces 14 connected thereto outward in the width direction. It is accommodated in an internal accommodation space K. The engaged portion 5, which is formed in a concave shape on the outside of the proximal end of the pair of holding pieces 11 in cooperation with the base 1, includes an inclined plate portion 6 at both ends in the width direction of the base 1, a contact plate portion 7, a holding portion It is formed by one proximal end portion 12 and an inclined bent portion 13 that constitutes the holding piece 11 . In addition, on the outside of the connecting portion of each curved holding piece 15 with each main body holding piece 14, there is an easily deformable groove for facilitating the bending of each curved holding piece 15 outward in the width direction. 16 is formed over the entire length.

The inner part in the width direction of each raised plate part 4 of the base 1 of the base V is slightly extended to the part directly above the fixed plate part 2, and the accommodation space K of the base V is provided in the extended part 4a. Each auxiliary support piece 17 is integrally formed to abut on the outer surface of both diagonally lower parts of the piping materials P ₁ and P ₂ housed in the pipe material P ₁ and P ₂ and to supplementarily support the piping materials P 1 and P 2 at two diagonally downward locations. has been done. Each auxiliary support piece 17 is pressed and deformed when the piping materials P ₁ to P ₃ are inserted into the housing space K, so that during the deformation, the auxiliary support pieces 17 are deformed inward in the width direction or buckled. In order to reliably prevent deformation, the shape is bulged toward the inside of the accommodation space K or the base V (toward the center side in the width direction of the base V). Due to this shape, the auxiliary support piece 17 is always deformed outward when pressed by the diagonally lower portions of the piping materials P ₁ and P ₂ . Here, the expression "inwardly bulging shape" of the auxiliary support piece 17 means excluding a shape in which the auxiliary support piece 17 bulges outwardly and a linear shape.

Furthermore, the length of the auxiliary support piece 17 is determined by the length of the tip (free end) of the auxiliary support piece 17 when housing the piping material P ₁ with the largest outer diameter among the plurality of piping materials P 1 and P ₂ with different outer diameters _. ) is dimensioned to abut against the inclined bent portion 13 and restrict outward movement (deformation) of the auxiliary support piece 17. Therefore, the upper surface of the inclined bent portion 13 facing the housing space V of the base V functions as a movement restriction portion 18 of the auxiliary support piece 17 that has been deformed to the maximum, and utilizes the existing shape to It has the advantage of restricting the movement of 17 people. The auxiliary support piece 17 is formed over the entire length of the base V, and functions to auxiliarily support the piping materials P ₁ and P ₂ at two diagonally downward locations during storage. When inserting the piping materials P ₁ to P ₃ into the space, there will be insertion resistance, so it is necessary to reduce the insertion resistance and to maintain the piping materials P ₁ to P ₃ in a stable state with respect to the accommodation space K of the base V. To accommodate this, the amount of deformation of the pair of holding pieces 11 should be zero or as small as possible, and the amount of deformation of the pair of auxiliary supporting pieces 17 should be large, so that the piping materials P ₁ to P ₃ can be accommodated as much as possible. Since it is desirable to enter and accommodate the inside of the accommodation space K, the pair of auxiliary support pieces 17 need to be relatively easier to elastically deform than the pair of holding pieces 11. For this reason, the base end portion of the auxiliary support piece 17 is formed thinner than the other portions, and an easily deformable groove 19 is formed on the outside of the auxiliary support piece 17 . Furthermore, the space between the pair of left and right auxiliary support pieces 17 inside the fixing plate part 2 of the base V can be used as a wire arrangement space 20 in which wires E such as heating wires and signal wires are arranged (see FIG. 6). .

Note that, regardless of the size of the piping materials P ₁ to P ₃ , the lower ends of the piping materials P ₁ to P ₃ can always be slightly displaced by a pair of elastically deformable auxiliary support pieces 17. Since the wire rod arrangement space 20 is held in this state, the wire rod arrangement space 20 described above can always be secured over the entire length in the longitudinal direction.

On the other hand, the lid L has a top wall 21 facing the base V in the assembled state, and a flat plate shape vertically extending from both ends of the top wall 21 in the width direction toward the base 1 of the base V. It consists of a pair of side walls 22, and a pair of engaging portions 23 are respectively provided protrudingly provided on the inner surface of the free end side of each side wall 22. A portion of the top wall 21 corresponding to the pair of curved holding pieces 15 of the base V is formed to be inclined. The outer surface shape of the engaging portion 23, which is convex in cross-sectional view, corresponds to the bottom surface shape of the engaged portion 5, which is concave in cross-sectional view. By pressing the lid L against the base V, the pair of side walls 22 are elastically deformed outward in the width direction and then restored to their original shapes, so that each engaging portion 23 of each side wall 22 is pressed against the base V. The lid L is integrally assembled to the base V by being engaged with each of the engaged portions 5 of the lid L.

Among the plurality of piping materials P ₁ to P ₃ that can be accommodated and protected by the protective cover C, when the piping material P ₁ with the maximum outer diameter D ₁ is accommodated from the insertion opening 10 into the accommodation space K of the base V. , as shown in FIG. 3-A(a), after the piping material P ₁ is pressed against the base V and the pair of holding pieces 11 of the base V are separated to the maximum, the same (b ), the piping material P ₁ is pressed until the two diagonal lower parts of the piping material come into contact with each auxiliary support piece 17, and when pressed further, the piping material P 1 is pressed as shown in FIG. The pair of auxiliary support pieces 17 are largely elastically deformed outward by the pressure of the piping material P ₁ , and their tips come into contact with the movement regulating portion 18 , making it impossible to press beyond this, and the piping material P ₁ is accommodated in the accommodation space K of the base V, with the arrangement position of the piping material P ₁ relative to the accommodation space K being determined.

When the piping material P ₁ in FIG. 3-B(c) is accommodated in the accommodation space K of the base V, the pair of holding pieces 11 of the base V are not deformed and maintain their original shape, and the Only the auxiliary support piece 17 is largely elastically deformed. Therefore, each biasing force (elastic restoring force) F ₁ generated by the large elastic deformation of the pair of auxiliary support pieces 17 acts on two locations at both diagonal lower portions of the piping material P ₁ . By biasing the piping material P 1 directed diagonally upward, which is the tip of the holding piece 11 on the far side, the arrangement position of the piping material _{P 1 within} the accommodation space K of the base V is determined. In this way, the pair of auxiliary support pieces 17 that have been largely elastically deformed function like cushioning materials when housing and protecting the piping material P ₁ , so that external force is not applied to the piping material P ₁ due to the water hammer phenomenon or the like. Even if the piping material P ₁ swings, the swing is absorbed by the pair of auxiliary support pieces 17, thereby preventing the pair of holding pieces 11 that maintain their original shape from being significantly deformed. can. In this way, the pair of holding pieces 11 can accommodate and protect the piping material P ₁ while maintaining its original shape. There is no possibility that the engagement of the lid L with the engagement part 23 will loosen or be released.

Here, since the pair of left and right auxiliary support pieces 17 have a curved shape that bulges on the side of the accommodation space K, when the piping material P ₁ is inserted into the accommodation space K of the base V, the auxiliary support pieces 17 are bent and deformed. The piping material P ₁ is smoothly bent along the outer surface without being bent. Further, as shown in FIG. 3-B(c), the tip portions of the pair of auxiliary support pieces 17 come into contact with the activation regulating portion 18, so that the pair of auxiliary support pieces 17 are bent to the maximum. Also, each of the auxiliary support pieces 17 exerts a large urging force F ₁ that urges the piping material P ₁ accommodated in the accommodation space K obliquely upward by the maximum elastic restoring force that attempts to restore it to its original shape. occurs and elastically supports the lower end side of the piping material P ₁ , so the shaking of the piping material P ₁ caused by the water hammer phenomenon is absorbed, resulting in a support structure that is strong against the shaking. In this respect, when the lower end side of the piping material is supported by a non-deformable lower end support material, the above-mentioned biasing force is not generated, which is different from the case where the structure is weak against the shaking of the piping material _P1 .

In addition, FIGS. 4(a) and 4(b) are cross-sectional views showing the state in which the piping material P ₃ with the minimum outer diameter (D ₃ ) is being accommodated in the accommodation space K of the base V, and when it is being accommodated, respectively. It is shown. When the piping material P ₃ is housed in the base V, the pair of holding pieces 11 and the pair of auxiliary supporting pieces 17 maintain their original shapes without being elastically deformed. The tips of each of the pair of auxiliary support pieces 17 are only in contact with the outer surface of the piping material P ₃ at a total of four locations, diagonally upward and diagonally downward, and no urging force is generated.

The specific dimensions of the maximum outer diameter D ₁ of the piping material P ₁ and the minimum outer diameter D ₃ of the piping material P ₃ are (48 mm) and (43 mm), respectively. Therefore, when a piping material P ₂ whose outer diameter D ₂ is larger than (43 mm) and smaller than (48 mm) is held on the base V, as shown in FIG. 17 is elastically deformed and exerts a biasing force F ₂ (F ₂ <F ₁ ) on the piping material P ₂ , but the amount of elastic deformation and the upward biasing force are the same as the maximum outer diameter. Both are smaller than when the piping material P ₁ of D ₁ is held.

Further, after each piping material P ₁ and P ₃ is accommodated in the accommodation space K of the base V ₁ , the piping materials P ₁ and P ₃ are accommodated as shown in FIGS. 6(a) and (b). When the lid L is pressed against the base V, each side wall 22 of the lid L is elastically deformed outward and then restored to its original shape, and is pressed against the concave engaged portion 5 of the base V. On the other hand, the convex engaging portion 23 of the lid L is inserted and engaged with each other, so that the base V and the lid L are assembled together, and the entire piping materials P ₁ and P ₃ are assembled together. protected. In addition, in FIGS. 1 and 6, 31 indicates a heat insulating material arranged inside the top wall 21 and each side wall 22 of the lid L so as to have an inverted U-shaped cross section.

D ₁ - D ₃ : Outer diameter of piping material F ₁ , F ₂ : Biasing force K: Accommodation space L: Lid P ₁ - P ₃ : Piping material (wiring/piping material)
V: Base W: Wall 1: Base 5: Engaged portion 11: Holding piece 17: Auxiliary support piece 18: Movement restriction portion 21: Top wall 22: Side wall 23: Engagement portion

Claims (5)

An elongated protective cover consisting of a base with a base fixed to a wall surface, and a lid that forms a housing space for wiring and piping materials when assembled with the base,
The lid body has a top wall facing the base, and an engagement portion formed on the inner surface of the tip side to engage with and be assembled to an engaged portion formed on the base, and the width of the top wall is adjusted. a pair of side walls formed to hang down toward the base from both ends of the direction,
On the base, a pair of holding pieces are arranged facing upwards from the base so as to hold the wiring/piping materials arranged therebetween from both sides, and
The pair of holding pieces can receive the wiring/piping material between them by separating from each other due to elastic deformation at their tips, and have an elastic restoring force to return to the original position. On the proximal end side, the engaged part is formed which stands up from the base, is bent outward in the width direction to be recessed outward, and is engaged with the engaging part;
A pair of auxiliary support pieces are provided between the pair of holding pieces, extending from the base toward the holding piece on the adjacent side,
The pair of auxiliary support pieces are pressed by the received wiring/piping material, and are movable toward the base side of each of the holding pieces so that their tips are separated from each other, and A protective cover characterized in that the holding piece on the far side of the holding pieces comes into contact with the lower outer circumferential surface of the wiring/piping material in a state where a biasing force is generated toward the inner surface on the tip side. The protective cover according to claim 1, wherein the base is provided with a movement restriction part that restricts further movement toward the base by abutting the tip of each of the auxiliary support pieces. . 3. The protective cover according to claim 2, wherein the movement restricting portion is an upper surface of a portion of the base end portions of the pair of holding pieces that is bent outward in the width direction. 4. The protective cover according to claim 1, wherein the pair of auxiliary support pieces are formed in a curved shape that bulges toward the housing space at a midway point in the extending direction. The pair of holding pieces has base end portions bent outward in the width direction, extends from the tip of the bent portion in a direction perpendicular to the base portion, and further includes each vertically extending portion. The tips of each extend close to each other,
The interval between the vertically extending portions of the pair of holding pieces has a dimension corresponding to the diameter of the first wiring/piping material to be held,
Furthermore, in order to accommodate a second wiring/piping material having a relatively smaller diameter than the first wiring/piping material,
The distance between the tips of the pair of holding pieces is narrower than the outer diameter of the second wiring/piping material,
When the pair of auxiliary support pieces receive the second wiring/piping material,
The amount of movement in the separation direction between the ends is smaller than when the first wiring/piping material is received, so that the position of the end of each auxiliary support piece with respect to the engaged part is The inner surface on the tip side of each auxiliary support piece is in contact with the outer surface of the second wiring/piping material in a state where they are spaced apart compared to when the piping material is received, and the holding piece on the far side of the pair of holding pieces is 5. The protective cover according to claim 1, wherein the protective cover is biased toward the inner surface on the distal end side of the protective cover.

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