JP6087243B2 - Duct crossing device - Google Patents

Description

The present invention relates to a duct crossing device that can be placed over a straight protective duct to dispose an overpass protection cover in order to avoid interference with an existing straight protective duct. By simply installing the base of the protective cover, it is possible to form a wiring / piping material accommodation path that is substantially orthogonal to the straight protective duct, or to the same duct for multiple ducts of different sizes The present invention relates to a duct crossing device in which a protective cover can be arranged to cross over.
In the following, the “straight protective duct” refers to a housing / protection member for wiring / piping materials already installed on the wall surface before the installation of the overpass protection cover according to the present invention. Means a housing / protection member for wiring / piping material connected via the “passing protection cover” according to the present invention disposed over the “straight protection duct”, and distinguishes between both housing / protection members In order to do so, different technical terms were used.
Further, the “front view” of the base and the lid constituting the overpass protection cover refers to a direction view in which the overpass depression can be visually recognized with respect to the base, and a direction view in which the notch portion is visible with respect to the lid. Point to.

  For example, in a renovation of a building, when an existing straight protective duct exists on the wall surface, it may be necessary to move over the straight protective duct and arrange another protective cover.

  FIG. 1 of Patent Document 1 discloses a structure in which the protective cover is raised using a spacer so that the protective cover can be disposed while avoiding interference with an existing straight protective duct. However, in this structure, it is necessary to raise the protective cover over the entire length of the accommodating path of the protective cover, not just the place over the existing straight protective duct in the protective cover. Used, resulting in an inefficient crossover structure.

  In FIG. 13 of Patent Document 2, since the protective cover is divided before and after the overpassing object that the protective cover gets over, it is difficult to arrange the protective cover orthogonal to the overpassing object. There is a problem that the connection of the protective cover is unavoidable at the portion overcoming (overstriding) the overpassed object, and the connection work is troublesome.

FIG. 1 of Japanese Patent No. 4313335 FIG. 13 of Japanese Patent No. 3549686

  In the present invention, when another straight protective cover is arranged so as to intersect with an existing straight protective duct, the crossing protective cover connecting the protective covers is overcome without interfering with the straight protective duct. In addition, it is an object to make it possible to arrange it so as to be substantially orthogonal to the straight protective duct.

The invention of claim 1 for solving the above-mentioned problems is a straight protection duct installed on the wall surface and containing the wiring / piping material inside, and the straight protection duct which is also installed on the wall surface. A duct crossing device comprising an overpass protection cover provided with a wiring / piping material accommodation path that partially crosses the duct in a substantially orthogonal arrangement posture,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
An arrangement posture positioning portion is provided at an opposite portion of the inner surface of the overpass recess to determine at least a part of the outer surface of the straight protection duct to determine a substantially orthogonal arrangement posture of the overpass protection cover with respect to the straight protection duct. And
The cross-sectional shape of the overpass recess is similar to the outer shape of the cross-sectional shape of the straight protection duct so that a part of the longitudinal protection duct in the longitudinal direction is fitted into the overpass recess without gaps. It is a feature.

  According to the first aspect of the present invention, the overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring and piping materials, and the base has interference with the duct. In order to be able to get over and avoid the above, a raised portion that is raised in a substantially inverted U shape in front view so as to be separated from the wall surface is formed at the intermediate portion along the direction of overcoming in the contact portion that contacts the wall surface As a result, a climbing recess is formed on the back side of the raised portion, and the inner surface of the climbing recess is in contact with at least a part of the outer surface of the duct, so that the climbing protection cover is substantially orthogonal to the base. Since an arrangement posture positioning part for determining the arrangement posture is provided, if the arrangement posture positioning part of the inner surface of the overpass recess of the base is brought into contact with the side surface of the existing straight protection duct, The base is almost orthogonal Arrangement attitude is defined, in this state, when fixing the base to the wall, the base is arranged to be substantially perpendicular to the existing straight protection ducts. After that, when the lid is assembled to the base fixed to the wall surface, the overpass protection cover composed of the base and the lid is in a state of overcoming (stranding) the existing straight protective duct, It arrange | positions substantially orthogonally with respect to the said linear protection duct. The overpass protection cover functions as a “connector” that connects the two straight protection covers that are arranged with the straight protection ducts sandwiched between the straight protection covers at the connection port portions at both ends. ing. As a result, the two straight protective covers connected via the overpass protection cover are substantially orthogonal to the straight protective duct in a form over the straight protective duct at the portion of the overpass protection cover. Arranged.

For this reason, according to the first aspect of the present invention, since the crossing recessed portion having the same cross-sectional shape is formed in the base of the crossover protection cover on the basis of the cross-sectional shape of the straight protective duct, On the other hand, the ride-over protection cover is arranged substantially orthogonally with respect to the straight protection duct only by fitting the ride-over recess of the base of the ride-over protection cover. Therefore, it is possible to easily and reliably determine the substantially orthogonal arrangement posture of the overpass protection cover with respect to the straight protection duct. Further, since the overpass recess formed in the base of the overpass protection cover can be set to a minimum space, there is no useless overpass space in the base, and the base can be minimized.

According to a second aspect of the present invention, in the first aspect of the invention, the lid body includes both side plate portions and a top plate portion that connects the both side plate portions. Corresponding portions are provided with notches that are the same as the cross-sectional shape of the straight protective duct that follows the cross-sectional shape of the overpass recess ,
In the state where the lid is assembled to the base of the overpass protection cover, the front end surface on the opening side of the both side plate portions of the lid is in a state where there is almost no gap between the wall surface, and the entire base is It is characterized by being covered with a lid.
According to the invention of claim 2, in order to fit the existing straight protective duct into the notch portions formed on the both side plate portions of the lid body so that there is almost no gap, There is no gap between the peripheral edge and the straight protective duct, and the base itself has a shape that secures an allowable radius of cables and pipes arranged inside, or a pipe accommodated inside Even if the shape is along the joint, the entire base is covered with the lid, so that it is in a so-called “overall” state, and objects existing inside the lid are not recognized at all. The appearance of the intersecting portion of the cross-shaped protective duct and the cross-over protective cover arranged in a three-dimensional manner in a three-dimensionally orthogonal manner with respect to the straight protective duct is improved.

According to a third aspect of the present invention, in the first or second aspect of the invention, the connection port of the overpass protection cover has an outer shape that is the same as the outer shape of the straight protection duct that follows the cross-sectional shape of the overpass recess. It is characterized by the fact that it can be connected to a protective cover of a length of wiring / piping material.
According to the invention of claim 3, since the existing straight protective duct and the newly installed wiring / piping material connected to the overpass protection cover have the same size, the wiring / piping material is shared and handled. Increases nature.

The invention according to claim 4 is a plurality of different types of straight protective ducts having different sizes, which are installed on the wall surface, and the inside is a housing path for wiring / piping material, and the straight protective duct which is also installed on the wall surface. A duct crossing device comprising a cover for covering over the wiring and piping material partially overriding the protective cover provided inside,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
The cross-sectional shape of the overpass recess is the same as the cross-sectional shape of the maximum size straight protective duct, so that the maximum size straight protective duct is fitted without a gap,
The lid body includes both side plate portions and a top plate portion for connecting the both side plate portions, and the plurality of types of straight protective ducts are provided in portions corresponding to the overpass recesses of the base in the both side plate portions. Is provided with a minimum-size notch corresponding to the cross-sectional shape of the minimum-size straight protective duct,
One or a plurality of intermediate sizes corresponding to the cross-sectional shape of each of the straight protective ducts of the remaining sizes other than the minimum size are provided on the outer side of the portion where the notch portions of the minimum size are formed on both side plate portions of the lid. Alternatively, it is characterized in that one or a plurality of cutout portions are formed so that the cutout portion of the maximum size can be formed .

According to the invention of claim 4, the same overpass protection cover is used to get over a plurality of existing straight protection ducts of different sizes, and there is a gap between the notch portion of the overpass protection cover and each of the straight protection ducts. Is not formed. That is, any size at the intersection between a plurality of straight protective ducts of different sizes to be crossed and a crossing protective cover that is three-dimensionally arranged in a crossing state with respect to the straight protective duct. In this case, no gap is generated, so that the appearance is improved .

The invention according to claim 5 is a straight protection duct installed on the wall surface and containing the wiring / piping material inside, and is also installed on the wall surface and arranged substantially orthogonal to the straight protection duct. A duct crossing device comprising an overpass protection cover provided inside with an accommodation path for wiring and piping materials partially overcoming in an attitude,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
By making the width of each opposing inner surface along the crossing direction of the overpass recessed portion the same as the width of each opposing outer surface along the width direction of the straight protective duct, the Jo protection duct a possible clamping, each opposing inner surface is characterized in that has a placement posture positioning portion both define a substantially orthogonal arrangement attitude of overcoming the protective cover against the straight protection ducts.

According to invention of Claim 5, the width | variety of each opposing inner surface along the boarding direction of the boarding recessed part formed in the base of the boarding protection cover is the width | variety of each opposing outer surface along the width direction of the said linear protection duct. Therefore, the base of the overpass protection cover is temporarily held in a substantially orthogonal posture with respect to the direct protection duct only by fitting the direct protection duct into the overpass recess of the base. Wiring and piping work becomes easy.

The invention according to claim 6 is a straight protective duct installed on the wall surface, and the inside is a housing path for wiring / piping material, and is also installed on the wall surface and partially with respect to the straight protective duct. A duct crossing device comprising a crossing protection cover provided inside with a wiring / piping material accommodating passage,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
Each opposing inner surface of the opposing portion of the inner surface of the overpass recess has only one of the opposing outer surfaces of the straight protective duct in contact with the other outer surface, and is not in contact with the other outer surface. Is also an arrangement posture positioning part that determines the substantially orthogonal arrangement posture of the overpass protection cover with respect to the straight protective duct,
The lid body includes both side plate portions and a top plate portion connecting the both side plate portions, and a portion of the both side plate portions corresponding to the overpass recess of the base has a cross section of the straight protective duct. Corresponding to the shape, each is provided with a notch that accommodates the straight protective duct without gaps,
The lid body can be assembled to the base in a state where the arrangement posture positioning portion of the base is in contact with one of the opposing outer surfaces of the straight protective duct .

According to the sixth aspect of the present invention, it is only necessary to place the straight protective duct on one of the opposing inner surfaces of the opposing portion of the inner surface of the overpass recess formed on the base of the overpass protection cover. The crossing protection cover is positioned almost perpendicular to the protective protection duct, making wiring and piping easy, and there is no gap at the intersection of the protective cover cover and the straight protective duct. Since it does not occur, it looks good.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the connection port of the overpass protection cover can be connected to a long wiring / piping material protective cover having the same outer shape as the straight protective duct. The operational effect of the invention of claim 7 is the same as that of the invention of claim 3, and the wiring and piping materials are shared .

The invention according to claim 8 is a plurality of types of straight protective ducts of different sizes that are installed on the wall surface, and the inside is a housing path for wiring / piping material, and the straight protective duct that is also installed on the wall surface. A duct crossing device comprising a cover for covering over the wiring and piping material partially overriding the protective cover provided inside,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
The width along the crossing direction of the facing portion of the inner surface of the overpass recess is formed equal to or wider than the width of the maximum size of the straight protective duct,
The lid body includes both side plate portions and a top plate portion for connecting the both side plate portions, and the plurality of types of straight protective ducts are provided in portions corresponding to the overpass recesses of the base in the both side plate portions. Each of which is provided with a notch of the minimum size corresponding to the cross-sectional shape of the minimum size of the straight protective duct,
One or a plurality of intermediate sizes corresponding to the cross-sectional shape of each of the straight protective ducts of the remaining sizes other than the minimum size are provided on the outer side of the portion where the notch portions of the minimum size are formed on both side plate portions of the lid. Or one or a plurality of cutouts for forming a maximum size cutout,
The lid body can be assembled with respect to the base at at least two different positions shifted along the crossing direction .

According to the eighth aspect of the present invention, the width along the crossing direction of the facing portion of the inner surface of the crossing recess formed on the base of the crossing protection cover is the same as or larger than the width of the straight protective duct of the maximum size. The part corresponding to the crossing recess of the base on the both side plates of the lid of the overpass protection cover corresponds to the cross-sectional shape of the straight protection duct, and the straight protection duct Are provided with cutout portions that are accommodated without gaps, and the lid body can be assembled with respect to the base at at least two different positions displaced along the crossing direction. Therefore, the overpass protection cover can be disposed substantially orthogonal to a plurality of existing straight protection ducts having different sizes, and can be disposed without generating a gap.

  The invention of claim 9 is the invention according to any one of claims 6 to 8, wherein the front end surface on the opening side is formed on both side plates of the lid body in a state where the lid body is assembled to the base of the overpass protection cover. It is characterized in that there is almost no gap between the wall surface and the entire base is covered with a lid.

According to the ninth aspect of the present invention, no gap is generated at any size at the intersecting portion with the overpass protection cover that is three-dimensionally arranged in a crossing manner with respect to the straight protection duct. , Looks better .

A tenth aspect of the present invention is a plurality of types of straight protective ducts of different sizes, which are installed on the wall surface and have an internal wiring / piping material accommodating path, and the straight protective duct which is also installed on the wall surface. A duct crossing device comprising a cover for covering over the wiring and piping material partially overriding the protective cover provided inside,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
The inner surface of the overpass recess is in contact with at least a part of the outer surface of the maximum size of the plurality of types of straight protective ducts, so that the crossover protective cover is arranged substantially orthogonally with respect to the base. An arrangement posture positioning unit is provided,
The lid body includes both side plate portions and a top plate portion for connecting the both side plate portions, and the plurality of types of straight protective ducts are provided in portions corresponding to the overpass recesses of the base in the both side plate portions. Each of which is provided with a notch of the minimum size corresponding to the cross-sectional shape of the minimum size of the straight protective duct,
One or a plurality of intermediate sizes corresponding to the cross-sectional shape of each of the straight protective ducts of the remaining sizes other than the minimum size are provided on the outer side of the portion where the notch portions of the minimum size are formed on both side plate portions of the lid. Or one or a plurality of cutouts for forming a maximum size cutout,
The base and the cover constituting the overpass protection cover are assembled to each other so as to be relatively movable along the overpass direction of the overpass protection cover with respect to the straight protective duct in an assembled state. It is a feature.

According to the invention of claim 10, a part of the existing straight protective duct in the longitudinal direction is accommodated in the overpass recess of the base constituting the overpass protection cover, and the arrangement posture positioning portion on the inner surface of the overpass recess is accommodated. Since a part of the outer surface of the straight protective duct comes into contact with each other, the position of the base that constitutes the overpass protection cover with respect to the straight protective duct is determined along the crossing direction. The arrangement position along the direction of overcoming the base with respect to a symmetry line (also referred to as “virtual center line”) varies depending on the size of the straight protection duct. On the other hand, since the plurality of notches provided in the overpass protection cover are symmetrical with respect to a common left-right symmetry line (in the general structure, the same as the right-left symmetry line of the lid itself), Even if the size of the duct changes, the arrangement position along the direction of overriding the lid of the overpass protection cover for a plurality of straight protective ducts of different sizes is constant.
Therefore, when the size of the existing straight protective duct changes, the position along the direction of overriding of the lid with respect to the base constituting the overpass protection cover changes, so the base and lid constituting the overpass protection cover Are installed together so that they can be moved relative to each other along the overpass direction of the overpass protection cover with respect to the straight protection duct in the assembled state. It is possible to assemble the base and the lid that constitute the structure.

According to the first aspect of the present invention, since the crossing recessed portion having the same cross-sectional shape is formed on the base of the overpass protection cover on the basis of the cross-sectional shape of the straight protective duct, the crossover over the straight protective duct is overcome. The ride-over protection cover is arranged substantially orthogonally with respect to the straight protection duct only by fitting the ride-over recess of the base of the protection cover. Therefore, it is possible to easily and reliably determine the substantially orthogonal arrangement posture of the overpass protection cover with respect to the straight protection duct. Further, since the overpass recess formed in the base of the overpass protection cover can be set to a minimum space, there is no useless overpass space in the base, and the base can be minimized.

According to the inventions of claims 9 and 10 , the same overpass protection cover is used to get over a plurality of existing straight protection covers of different sizes, and the notch portion of the overpass protection cover and each straight protection duct A gap is not formed between them, and the appearance is improved.

FIG. 4 is an exploded perspective view of a base V ₀ and a lid body L ₀ constituting a ride-over protection cover C ₀ in a state where the ride-over protection cover C ₀ is placed over the maximum size straight protection duct D ₁ . FIG. 6 is a perspective view of a state in which the overpass protection cover C ₀ is disposed over the maximum size straight protection duct D ₁ . It is also a plan view. It is the XX sectional view taken on the line of FIG. FIG. 4 is a sectional view taken along line Y ₁ -Y _{1 in} FIG. 3. FIG. 4 is a sectional view taken along line Y ₂ -Y _{2 in} FIG. 3. The base V ₀ and the lid L ₀ that constitutes the protective cover C ₀ overcoming is an exploded perspective view seen from different directions. It is a perspective view of the base V ₀ from the back side. FIG. 5 is an exploded perspective view of a base V ₀ and a lid body L ₀ that constitute a ride-over protection cover C ₀ in a state of being placed over a straight protective duct D ₃ having a minimum size. FIG. 6 is a perspective view of a state in which the overpass protection cover C ₀ is disposed so as to get over the straight protective duct D ₃ having the minimum size. It is a longitudinal cross-sectional view similarly. The state in which the base V ₀ and the lid body L ₀ are relatively moved along the crossing direction Q in a state where the overpass protection cover C ₀ is disposed over the straight protective duct D ₃ having the minimum size. It is a bottom view. (A) ~ (c) is a cross-sectional view of three different straight protection duct D ₁ to D ₃ in size. (A) is a set of a plan view and a front view showing a state in which the base V ₀ of the overpass protection cover C ₀ is placed over the straight protective duct D ₁ of the maximum size. FIG. 3 is a front view of a state in which a lid body L ₀ is assembled to a base V ₀ fixed to a wall surface W. (A) is a set of a plan view and a front view showing a state in which the base V ₀ of the overpass protection cover C ₀ is placed over the intermediate-sized straight protective duct D ₂ , and (b) FIG. 3 is a front view of a state in which a lid body L ₀ is assembled to a base V ₀ fixed to a wall surface W. (A) is a set of a plan view and a front view showing a state in which the base V ₀ of the overpass protection cover C ₀ is placed over the minimum-sized straight protective duct D ₃ , and (b) FIG. 3 is a front view of a state in which a lid body L ₀ is assembled to a base V ₀ fixed to a wall surface W. (A), (b) is obtained by applying a breakage piece 32 provided in a part of the overpass recess 3 of the base V ₀ of the overpass protection cover C ₀ so as to be detachable. is a partial front view showing the structure capable of fitting the type of a straight protection duct D _1, D ₂ without gaps. (A) is a partial front view in which the notch piece 33 is attached to the notch H ₁ of the lid L ₀ of the overpass protection cover C ₀ , and (b) is a cross-sectional view taken along the line ZZ of (a). FIG.

  Hereinafter, the present invention will be described in more detail with reference to examples.

The duct crossing apparatus according to the present invention is installed on the wall surface, and is installed on the same wall surface as the existing straight protective duct D ₁ (D ₂ , D ₃ ), which has a wiring / piping material accommodating path inside. Thus, the overpass protection cover C is provided with a housing path for wiring and piping material that is partially perpendicular to the straight protection duct and partially passes over a part of the longitudinal direction of the straight protection duct. It consists of ₀ . The overpass protection cover C ₀ of this embodiment can be installed on the wall surface W over the three types of straight protective ducts D _{1 to} D ₃ of different sizes by the same overpass protection cover C ₀ . in a specific portion of the base V ₀ that constitutes the protective cover C ₀ ride over only fasten to the straight protective duct D ₁ to D _3, and substantially perpendicular to the straight protective duct D ₁ to D ₃ of all sizes In addition, the lids constituting the overpass protection cover C ₀ and the outer surface and the wall surface W of the straight protection ducts D _{1 to} D _{3 with} respect to the straight protection ducts D _{1 to} D ₃ of all sizes. without generating a gap between the end face of the opening side of the body L _0, in that it assembled the lid L ₀ with respect to the base V ₀ that constitutes the protective cover C ₀ overcoming has a feature.

As shown in FIGS. 1 and 9, when a building is renovated, a straight protective duct D ₁ (D ₂ , D ₃ ) is already installed on the vertical wall W of the building. overcame Jo protection duct _{D 1 (D 2, D 3} ), yet in a state of being perpendicular to the straight protective duct _{D 1 (D 2, D 3} ), a new straight protective cover C ₁ (C ₂ ) Need to be installed. The overpass protection cover C _{0 according} to the present invention has been invented so as to cope with such a situation. Overcoming the protective cover C ₀ is over the straight protective duct _{D 1 (D 2, D 3} ) ( across at) is installed, the wall surface W by sandwiching the straight protective duct _{D 1 (D 2, D 3} ) Since it is a member that connects the _two straight protective covers C ₁ (C ₂ ) installed in the case, it can be said to be a kind of “connector”. The accommodation paths inside the overpass protection cover C ₀ are respectively connected to the accommodation paths of the respective straight protection covers C ₁ (C ₂ ) arranged with the existing straight protection ducts D ₁ (D ₂ , D ₃ ) interposed therebetween. A connecting pipe 92 for connecting each newly installed pipe P ₁ (P ₂ ) to be housed is housed.

As shown in FIG. 13, the three types of straight protective ducts D _{1 to} D ₃ have the same shape (similar shapes to each other) only in size, and include bases VD _{1 to} VD ₃ and the base VD _1. It consists Metropolitan lid LD ₁ to Ld ₃ to be assembled integrally with to VD _3, in a state different each tube P ₁₁ to P ₁₃ is housed and held sizes to each base VD ₁ to VD _3, the lid Covered by LD _{1 to} LD ₃ .

First, the configuration of the overpass protection cover C ₀ will be described with reference to FIGS. 1 and 5 to 8, and then the installation of the overpass protection cover C ₀ will be described. The overpass protection cover C ₀ includes a base V ₀ fixed to the wall surface W via a screw 91 and a lid L ₀ assembled integrally with the base V ₀ . The base V ₀ is bilaterally symmetric in a front view (in FIGS. 14 to 16, the left-right symmetric line is indicated by a symbol “KV ₀ ”), and is fixed in contact with the wall surface W. The abutting portion 1 that has been formed, a bulging portion 2 that is largely raised in a direction away from the wall surface W at the central portion in the longitudinal direction of the abutting portion 1 and has a substantially inverted U shape in front view, and the bulging portion 2 and a climbing recess 3 formed on the back surface side (side facing the wall surface W). Therefore, the contact part 1 is divided by the raised part 2. Since the maximum size of the straight protection duct D ₁ is fitted into the climbing recess 3 without a gap, the front shape of the climbing recess 3 corresponds to the cross-sectional shape of the maximum size of the straight protection duct D _1. (It is the same as). For this reason, the surface of the inner surface of the overpass recess 3 that faces in the crossover direction Q is perpendicular to the wall surface W, and the outer surface of one or both of the existing straight protective ducts D _{1 to} D ₃ is applied. It is to contact, and has a placement posture positioning surface 3a to confirm the approximately orthogonal arrangement attitude of the protective cover C ₀ overcoming respect to the straight protective duct D ₁ to D _3.

At both ends in the width direction of the abutting portion 1 and the raised portion 2, low standing wall portions 4 are continuously provided along the longitudinal direction. As shown clearly in FIGS. 5 and 6, the standing wall portion 4 is formed to protrude outward from both ends in the width direction of the contact portion 1, and the standing wall portion 4, the contact portion 1, As a step is formed between them, the flat surface portion of the back surface of the standing wall portion 4 is arranged away from the wall surface W and engages with an engagement protrusion 17 of the lid L ₀ described later. The engaging surface 5 is formed. The engaged surface 5 is formed on the base V ₀ so that the base V ₀ and the lid L ₀ can be relatively moved along the longitudinal direction of the base V ₀ in a state where they are assembled to each other. It is provided continuously along the longitudinal direction. Then, 15 and as shown in FIG. 16, get over the protective cover C ₀ is, if overcome straight protection intermediate size or minimum size duct D _2, D ₃ is the respective straight protection duct D _2, D _3, only the upper arrangement attitude positioning surfaces 3a in arrangement of the base V ₀ in contact, in this state, since the lid L ₀ is assembled relative to the base V _0, and the base V ₀ The base V ₀ and the lid body in a state where the respective symmetrical lines KV ₀ , KL _{0 of the} lid body L ₀ are shifted along the boarding direction Q of the straight protective ducts D ₂ , D ₃ of the overpass protection cover C _0. L ₀ is assembled together. For this reason, the base V ₀ and the lid body L ₀ can be relatively moved along the longitudinal direction (passing direction Q) of the base base V ₀ in a state where they are assembled to each other. engagement position engaged surfaces 5 of the base V ₀ against the engaging projection 17 of _0, it is necessary to continuously along the direction Q overcoming are countless exist. On the other hand, when the base V ₀ and the lid body L ₀ are relatively movable in the assembled state, when the riding-over protection cover C ₀ is stored in the assembled state, one of the base V ₀ and the lid body L ₀ is relatively detached from the other. Since both are easily separated, a stopper 6 is provided at an optimum position along the longitudinal direction of the planar engaged surface 5 in order to prevent this. The stoppers 6 are formed in two sets with a pair of stoppers 6 provided on the left and right engaged surfaces 5 of the base V ₀ as a set and sandwiching the notches H _{1 to} H ₃ . The displacement between the symmetrical lines KV ₀ and KL ₀ of the base V ₀ and the lid body L ₀ is the largest when the overpass protection cover C ₀ gets over the straight protective duct D ₃ of the minimum size. The aforementioned “optimum position” is a limit position where the maximum deviation amount (e ₂ ) can be secured, thereby preventing the base V ₀ and the lid body L ₀ from moving unnecessarily. .

Here, the base V ₀ and the lid body L ₀ can be relatively moved by a maximum deviation amount (e ₀ ) (see FIG. 12), but this maximum deviation amount (e ₀ ) is determined in the deviation direction ( By dividing into multiple pieces along the boarding direction Q), selecting the “movement range” according to the size of the straight protective ducts D _{1 to} D ₃ , and assembling the base V ₀ and the lid L ₀ The maximum relative deviation amount between the base V ₀ and the lid body L ₀ during construction can be reduced, and the base V ₀ and the lid body L ₀ are greatly displaced during storage of the overpass protection cover C _0. Can be prevented.

When the lid L ₀ with respect to the base V ₀ which protective cover C ₀ overcoming is assembled, a portion engaging projection 17 of the lid L ₀ on the outer surface of the vertical wall portion 4 is in sliding contact with the smooth the sliding contact In order to make it, it is formed in the inclined surface 4a. 7 and 8, reference numeral 7 denotes an insertion hole for the screw 91 formed in the contact portion 1, and 8 denotes a connection port J ₁ (J described later) at both ends in the longitudinal direction of the overpass protection cover C _{0. 2} ) In order to perform positioning in the width direction of the bases VC ₁ and VC ₂ of the straight protective covers C ₁ and C ₂ connected to ₂ ), positioning plates formed at both ends in the longitudinal direction of the contact portion 1 are used. Reference numeral 9 denotes a concave portion for sticking a double-sided tape provided on the back surface of the contact portion 1 of the base V ₀ .

Next, FIG. 1, with reference to FIGS. 5 to 7, the lid L ₀ to be assembled on the base V ₀ which get over the protective cover C ₀ will be described. Similarly to the base V ₀ , the lid body L ₀ has a left-right symmetrical shape in front view (the left-right symmetry line is indicated by the symbol “KL ₀ ” in FIGS. 7 and 14 to 16). ] The bulging sides of both side plate portions 11 arranged in parallel with each other at an interval corresponding to the width of the contact portion 1 of the base V ₀ are connected by the top plate portion 12 and are opposite to the top plate portion 12. The assembly opening 13 is formed on the side. That is, the lid L ₀ is to correspond to a substantially inverted U-shaped ridge portion 2 on the side away from the wall surface W in the center portion in the longitudinal direction of the base V ₀ is formed, the lid L ₀ The portion corresponding to the raised portion 2 of the base V ₀ is a bulging portion 14 that is greatly bulged toward the side away from the wall surface W.

A total of three types of notches H _{1 to} H _{3 in} a shape in which three types of straight protective ducts D _{1 to} D ₃ of different sizes are fitted without gaps at the center in the longitudinal direction of both side plate portions 11 (FIG. 7). 14 to 16) can be formed. That is, the notch H ₃ corresponding to the minimum size of the straight protective duct D ₃ is formed in advance, and the remaining two notches H ₁ and H ₂ are the thin portions 15 and 16. The side plate portion 11 is formed by cutting out a part thereof. As shown in FIG. 7, the total three types of notches H _{1 to} H ₃ have a common base and are arranged symmetrically with respect to the left-right symmetry line KL ₀ of the lid L ₀ . The end face 11a formed on the side of the assembly opening 13 of the side plate portions 11 of the lid L ₀ is in the state assembled with the lid L ₀ with respect to the base V ₀ which is fixed to the wall W, the wall surface W It is formed in a straight shape so as to be close to each other without a gap.

In the portion facing the assembly opening 13 on the inner surface of both side plate portions 11 of the lid body L ₀ , a total of four sets of engagements, which are a pair of engagement with the engaged surface 5 of the base V _0, are made. A protrusion 17 is formed. A total of four sets of engaging protrusions 17 are arranged on both sides of the notch H ₃ . Since both side plate portions 11 constituting the lid body L ₀ can be elastically deformed, the lid body L ₀ is put on the base V ₀ fixed to the wall surface W as shown in FIGS. When pressed by way, when the four pairs of the engaging projections 17 move over sliding contact with the inclined surface 4a of the outer wall part 4 of the base V _0, elastically deformable side plate portions 11 is slightly outwardly After that, the both side plate portions 11 are restored to the original shape, and the engagement protrusions 17 of the lid body L ₀ are planar engagement surfaces 5 formed on the back surface of the standing wall portion 4 of the base V _0. The lid body L ₀ is integrally assembled to the base V ₀ . In this state, the lid L ₀ can be moved in the longitudinal direction with respect to the base V ₀ fixed to the wall surface W as described above. However, when the lid body L ₀ is assembled to the base V ₀ fixed to the wall surface W in a state of overcoming the existing straight protective ducts D _{1 to} D _{3 as} will be described later, the lid body L _In a state in which the longitudinal protection ducts D _{1 to} D ₃ installed on the wall surface W are partially fitted in the notches H _{1 to} H ₃ formed in the both side plate portions 11 of _0. , since the lid L ₀ with respect to the base V ₀ it is assembled, in assembled state, the lid L ₀ does not move relative to the base V _0. In addition, by assembling the base V ₀ and the lid body L ₀ , the space formed between them is a pipe P ₁ (P ₂₎ piped on both sides of the straight protective ducts D _{1 to} D _3. ) It becomes the accommodation space N of the connecting pipe 92 to which the two are connected.

Further, by attaching the lid L ₀ to the base V ₀ , straight protection is provided at both ends in the longitudinal direction (from the point of going over the straight protective ducts D _{1 to} D ₃ , the crossing direction Q). cover C ₁ (C ₂₎ ends and connected thereto a connection port J ₁ of the (J ₂₎ is formed. As shown in FIG. 9, the connection port J ₂ is formed at the end of the connection port adjustment unit 18 while leaving the tapered connection port adjustment unit 18, and is larger in size than the connection port J _1. As shown in FIG. 1, the connection port J ₂ is formed at both ends in the longitudinal direction of the lid L ₀ by removing the connection port adjustment portion 18.

Next, referring to FIG. 1 to FIG. 6 and FIG. 13 to FIG. 16, in the renovation work or the like, the straight protective duct D installed horizontally on the wall surface W using the above-described overpass protection cover C _{0. 1} to D ₃ overcame, moreover, the straight-like protective duct D ₁ to D ₃ and is substantially perpendicular, will be described operation of connecting the straight protective cover C ₁ two disposed on both sides thereof.

First, a case is described in which protective cap C ₀ overcoming overcoming straight protection duct D ₁ of the maximum size which is installed on the wall. In this case, as shown in FIG. 14 (a), a portion of the ride-over recess 3 of the base V ₀ which protective cover C ₀ overcoming to some longitudinal existing straight protection duct D ₁ By pushing, a part of the longitudinal protective duct D _{1 in} the longitudinal direction is relatively fitted into the overpass recess 3 of the base V ₀ . Te this state, between the outer surface of the straight protective duct D _1, and the inner surface of the raised portion 2 of the base V _0, a gap along the entire circumference is not generated, overcoming the base V ₀ The base V ₀ is arranged substantially orthogonal to the existing straight protective duct D ₁ by relatively fitting a part of the straight protective duct D _{1 in} the longitudinal direction with the recess 3 [ The crossing angle (θ) between the straight protective duct D ₁ and the base V ₀ is 90 °), and the arrangement direction is determined. In other words, in this state, the opposing outer surfaces of the maximum-size straight protective duct D ₁ are in contact with the opposing positioning posture positioning surfaces 3 a of the overpass recess 3 of the base V ₀ , so that the base V each arrangement attitude positioning surface 3a of recess 3 overcoming provided _0, base V ₀ for straight protection duct D _1, or to determine the position of the protective cover C ₀ overcoming containing the base V ₀ "arrangement It functions as a “position determination unit”. In this state, the base V ₀ is fixed to the wall surface W using a plurality of screws 91. Since the base V ₀ of the overpass protection cover C ₀ is arranged so as to be substantially orthogonal to the straight protective duct D ₁ arranged in the horizontal direction, before fixing the base V ₀ to the wall surface W, one of the arrangement attitude positioning surface 3a of the inner surface of overcoming the recess 3 of the base V ₀ is caught by the upper side of the straight protective duct D _1, since the base V ₀ is temporarily held, easy to work Become.

In order to select the maximum notch H ₁ corresponding to the maximum size of the straight protective duct D ₁ , the lid L ₀ cuts out part of the side plate portions 11 at the outer thin portion 16 and The notch H ₁ is formed in advance. In FIG. 1, reference numeral 19 denotes a cut piece obtained by cutting a part of the side plate portions 11 of the lid L ₀ in order to form the maximum cutout H ₁ . The lid L ₀ is a new pipe P ₁ accommodated in the straight protective cover C ₁ (the outer diameter of the pipe P ₁ is another new pipe accommodated in another straight protective cover C _2. Since it is necessary to select a large connection port J ₁ so as to correspond to the outer diameter (which is larger than the outer diameter of P ₂ ), the connection port adjustment portions 18 at both ends in the longitudinal direction of the lid L ₀ are cut off. Thus, large connection ports J ₁ are formed at both ends in the longitudinal direction.

As shown in FIG. 1, at both ends in the boarding direction Q of the base V ₀ of the boarding protection cover C ₀ fixed to the wall surface W substantially orthogonal to the existing straight protection duct D ₁ , the base VC ₁ of the protective cover C ₁ after connecting respectively get over accommodates each tube P ₁ of new to the accommodating channel of each base VC _1, which is placed over the said straight protection duct D ₁ by housing the base V ₀ Niwan song connection pipe 92 of the protective cover C _0, to connect two pipes P ₁ of newly via the connecting pipe 92 described above. In FIG. 1, reference numeral 96 denotes a pipe joint that connects the newly established pipe P ₁ and the connection pipe 92.

Thereafter, after the lid LC ₁ is assembled to the base VC ₁ of each straight protective cover C ₁ , the base V ₀ of the overpass protective cover C ₀ installed over the existing straight protective duct D ₁ is installed. On the other hand, when the lid body L ₀ is assembled, as shown in FIGS. 2 to 4, the overpass protection cover C ₀ gets over the existing straight protection duct D ₁ , and is substantially the same as the straight protection duct D ₁ . They are arranged orthogonally. As a result, the two newly installed pipes P ₁ piped on both sides of the existing straight protective duct D ₁ were accommodated in the overpass protection cover C ₀ disposed over the straight protective duct D ₁ . The connection is made through the connection pipe 92. Incidentally, as shown in FIG. 14, the maximum notch H ₁ of the lid L _0, if the straight protective duct D ₁ of the maximum size of the existing is fitted, base V ₀ and the lid L each symmetrical lines KV ₀ of _0, KL ₀ without deviating, are consistent.

Next, with reference to FIG. 9 to FIG. 12 and FIG. 16, the maximum size of the straight shape when the protection cover C ₀ is installed over the minimum size of the straight protective duct D ₃ installed on the wall surface. It is described in comparison with the case to overcome the protective duct D _1. First, as shown in FIGS. 9 and FIG. 16 (a), the the existing straight protection duct D ₃ of which are horizontally disposed in a vertical wall W, the ride-over recess 3 of the base V ₀ which get over the protective cover C ₀ The base V ₀ is brought into contact with the wall surface W so as to be accommodated, and the upper side surface of the straight protective duct D ₃ is brought into contact with one arrangement posture positioning surface 3 a of the base V ₀ . Arrangement attitude positioning surface 3a which is formed opposite to climb over along the direction Q overcoming the inner surface of the recess 3 of the base V _0, in a state where the base V ₀ is placed on the wall surface W, with respect to the wall surface W since vertical, as described above, the upper side of the straight protective duct D _3, when brought into contact with one of the arrangement attitude positioning surface 3a of the base V _0, the base V ₀ is straight protection It is disposed substantially perpendicular to the duct D _3. In this state, the base V ₀ is fixed to the wall surface W via a plurality of screws 91.

Since the outer diameter of the new pipe P ₂ piped on both sides across the straight protective duct D ₃ is smaller than the outer diameter of the pipe P ₁ , that is, the straight protection that accommodates the new pipe P _2. since the cover C ₂ is size than straight protective cover C ₁ is small for accommodating the pipe P ₁ of the above-described newly established connection opening adjuster 18 of the lid L ₀ is, by leaving it, the lid L ₀ in a state assembled to the base V _0, the longitudinal ends of the ride-over protective cover C _0, connected port J ₂ corresponding to the small straight protective cover C ₂ size is formed.

Subsequent work, i.e., housing after connecting the two pipes P ₂ of newly established connection pipe 93, each base V ₀ which base VC ₂ and get over the protective cover C ₀ of the straight protective cover C ₂ After that, the operation of assembling the lids LC ₂ and L ₀ to the bases VC ₂ and V ₀ is exactly the same as the case of overcoming the maximum size of the straight protective duct D ₁ , and is therefore omitted.

Here, by mounting the lid L ₀ with respect to the base V _0, in the state where the notch H ₃ of the lid L ₀ is straight protection duct D ₃ being fitted, the straight protective duct D ₃ symmetry line of the cross section, but are consistent to the symmetrical line KL ₀ of the lid L _0, for a symmetrical line KV ₀ of the base V _0, the maximum amount of deviation (e ₂₎ only It is off. As a result, the left-right symmetry line KV _0, KL ₀ of the base V ₀ and the lid L ₀ of the protective cover C ₀ overcoming will deviate only the maximum amount of deviation (e _2). Then, in a state where a base V ₀ and the lid L ₀ of overcoming the protective cover C ₀ is shifted to relatively largest, as shown in FIG. 12, the portion of the engaged surface 5 of the base V ₀ Of the two pairs of stoppers 6 provided in a pair, the one set of stoppers 6 is close to the notch H ₃ among the four sets of engaging projections 17 provided on the lid L _0. Close to one set of engaging projections 17 on the side.

In addition, the inner surface near the opening of the connection port adjusting portion 18 that forms the connection port J ₂ gradually narrows from the base end toward the free end (opening side) so as to be tapered in a longitudinal sectional view. Therefore, a plurality of pipes having different protruding lengths (in order to stabilize the connection state of the pipe P ₁₃ by contacting the outer peripheral surface of the end of the pipe P ₁₃ inserted into the connection port J ₂ ( Two tube contact protrusions 21 (see FIGS. 11 and 12) are formed.

Further, when the overpass protection cover C ₀ is disposed over the intermediate size straight protection duct D _2, as is apparent from the comparison between FIGS. 14 and 15, the base V constituting the overpass protection cover C ₀ is provided. _The amount of relative movement between ₀ and the lid L ₀ , that is, the amount of deviation (e ₁ ) between the two is smaller than the amount of deviation (e ₂ ) when overcoming the minimum size straight protective duct D ₃ (e _1). <E ₂ ) The only difference is that everything else is the same.

Further, both the base V ₀ and the lid L ₀ constituting the overpass protection cover C ₀ are arranged substantially orthogonally to the straight protection ducts D _{1 to} D ₃ without marking the wall surface W. There are the following methods. That is, while attaching a double-sided tape on the back surface of the base V _0, and a base V ₀ and the lid L ₀ keep assembled together, the cutout portion H ₁ to H ₃ of the lid L ₀ Using the double-sided tape affixed to the back surface of the base V _{0 in} a state in which a part of the longitudinal direction of the straight protective ducts D _{1 to} D ₃ is relatively fitted into the part, the base V ₀ is temporarily fixed to the wall surface W. By fitting a part in the longitudinal direction of the straight protective ducts D _{1 to} D ₃ into the notches H _{1 to} H ₃ of the lid L ₀ , the straight protective ducts D _{1 to} D ₃ are inserted. lid L ₀ is Te, is approximately orthogonal arrangement, since together and the lid L ₀ and the base V _0, after all, also base V ₀ that is integrally assembled to the lid L _0, It is substantially orthogonal arranged relative to the straight protective duct D ₁ to D _3.

Then, remove the lid L ₀ from the base V ₀ which is temporarily fixed to the wall W, using the screws 91, the base V ₀ after the fixed to the wall W, connected to the base V ₀ the tube 92 after the pipe, assembling the lid L ₀ with respect to the base V _0.

In the above embodiment, overcame straight protection duct D ₁ to D _3, arrangement attitude positioning surface 3a of the base V ₀ in contact with the outer surface of the straight protective duct D ₁ to D ₃ is the base V _It is formed in a planar shape over the entire width of ₀ , and the stability of the contact state is enhanced. However, the arrangement attitude positioning surface 3a of the base V _0, by abutting on the outer surface of the straight protective duct D ₁ to D _3, base V ₀ with respect to the straight protective duct D ₁ to D ₃ is Since it is sufficient if the base V ₀ can be arranged substantially orthogonally, the arrangement posture positioning surface 3 a of the base V ₀ is constituted by a plurality of abutting protrusions provided along the width direction of the base V _0. It is also possible to configure so that the tip of the abutting projection part abuts on the outer surface of the straight protective ducts D _{1 to} D ₃ .

FIG. 17 shows a modified example of the base V ₀ of the overpass protection cover C ₀ . Figure 17 (a), (b) is a front view of a portion of the ride-over recess 3 of the base V _0, is to confirm the arrangement posture substantially perpendicular relative to the straight protective duct D _1, D ₂ of different sizes It is a structure. That is, breakage pieces 32 that can be broken through the thin portions 31 are formed at both ends in the width direction of the boarding recess 3 of the base V ₀ (portions where the standing wall portions 4 are provided). Yes. The overpass recess 3 has a shape in which the maximum size of the straight protective duct D ₁ is fitted without a gap, whereas the inner shape of the breaker piece 32 is fitted with the intermediate size of the straight protective duct D ₂ without a gap. It has a shape.

Therefore, only by fitting a part of the straight protective duct D ₂ of intermediate size in the longitudinal direction on each move over the concave portion 3 'formed by a pair of folding-up pieces 32, the base with respect to the straight protective duct D ₂ A substantially perpendicular arrangement posture of V ₀ is determined. Also, if overcome straight protection duct D ₁ of the maximum size is broken off the folding up piece 32 in the portion of the thin portion 31, by forming the ride-over recess 3 corresponding to the straight protective duct D ₁ of the maximum size That's fine.

FIG. 18 shows a modification of the lid body L ₀ that constitutes the overpass protection cover C ₀ . In other words, the maximum and intermediate portions can be obtained by attaching / detaching the separate notch pieces 33 to / from the notch portions H ₁ of the straight protective duct D ₁ having the maximum outer diameter provided on the both side plates 11 of the lid L _0. The two types of straight protective ducts D ₁ and D ₂ can be accommodated. That is, the outer peripheral side of the substantially inverted U-shape with a notch piece 33, the peripheral portion can be fitted a fitting portion 34 of the notch portion H ₁ of the side plate portions 11 of the lid L ₀ is all around is formed, as shown in FIG. 18 (a), by attaching push the notched piece 33 against the periphery of the notch portion H ₁ of the side plate portions 11 of the lid L _0, of intermediate size A notch H ₂ corresponding to the straight protective duct D ₂ is formed, and the original notch H ₁ is formed by removing the notch piece 33. In addition, instead of the configuration in which a separate notch piece is attached to and detached from the lid, the largest straight shape can be obtained by attaching and detaching a separate climbing recess formation body to the climbing recess in the base. Corresponding to a plurality of straight protective ducts including protective ducts.

  In addition, regarding the relationship between the cross-sectional shape of the existing straight protective duct and the cross-sectional shape of the overpass recess of the base constituting the straight protective cover, the arrangement posture positioning portion that is the opposite portion of the inner surface of the overpass recess It is only necessary that at least a part of the outer surface of the straight protective duct abuts so that the straight protective cover for the straight protective duct can maintain a substantially orthogonal posture without being inclined. To give a specific example, the opposing outer surfaces of the straight protective duct are almost in contact with the respective positioning posture positioning portions of the inner surface of the overpass recess of the base, but the upper surface portion of the straight protective duct and the base Even when a slight gap is formed between the overpass recess and the straight protective cover, the straight protective cover can maintain a substantially orthogonal posture without being inclined with respect to the straight protective duct. In other words, only the portion of the base overpass recess that is necessary to maintain the substantially orthogonal posture with respect to the existing straight protective duct follows the outer surface shape of the straight protective duct, and has a substantially orthogonal posture. The part contributing to the holding does not need to follow the outer shape of the straight protective duct.

Further, in the above construction example, has straight protection duct D ₁ to D ₃ is to be get over member is installed horizontally on the wall, the protective cover C ₀ overcoming by approximately perpendicular to the object to be get over body vertically installed Although an example in which, obstacle if it is installed vertically on the wall surface W, the ride-over protective cover C ₀ is placed horizontally. Furthermore, not only the vertical wall surface but also the straight protective ducts D _{1 to} D ₃ and the overpass protection cover C ₀ may be installed on the horizontal wall surface.

  In addition, for the convenience of explanation, different technical terms are used for “straight protective duct” and “straight protective cover” from the viewpoints of “existing” and “newly installed”. possible. Since the combination of the “straight protective duct” to be crossed over and the “straight protective cover” over the “straight protective duct” is arbitrary, the sizes of both may be the same or different from each other. . Furthermore, the construction sequence of the “existing straight protective duct” and the “new straight protective cover” is always first, but it is not limited to separate construction. It includes the relationship of setting.

C ₀ : Overpass protection cover C ₁ , C ₂ : Straight protection cover D _{1 to} D ₃ : Straight protection duct e ₁ , e ₂ : Deviation amount of each symmetric line (virtual center line) of base and lid H ₁ to H _3: notch J _1, J _2: connection port KV _0: base symmetrical line (imaginary center line)
KL ₀ : Left / right symmetry line of the lid (imaginary center line)
L ₀ : Overpass protection cover lid
Q: Overpass direction
V ₀ : Base of the overpass protection cover
W: Wall surface
1: Base contact part
2: Raised part of base
3: Overpass recess
3a: Arrangement posture positioning surface
5: engaged surface
11: Side plate of lid
12: Top plate part of the lid 15, 16: Thin part for breaking
17: Engagement protrusion 92, 93: Connection pipe

Claims (10)

A straight protective duct installed on the wall surface and containing the wiring and piping material inside, and a straight protective duct that is also installed on the wall surface and is substantially orthogonal to the straight protective duct. A duct crossing device comprising a crossing protection cover provided inside with a wiring / piping material accommodating passage,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
An arrangement posture positioning portion is provided at an opposite portion of the inner surface of the overpass recess to determine at least a part of the outer surface of the straight protection duct to determine a substantially orthogonal arrangement posture of the overpass protection cover with respect to the straight protection duct. And
The cross-sectional shape of the overpass recess is similar to the outer shape of the cross-sectional shape of the straight protection duct so that a part of the longitudinal protection duct in the longitudinal direction is fitted into the overpass recess without gaps. Features a duct crossing device. The lid body includes both side plate portions and a top plate portion connecting the both side plate portions, and a portion of the both side plate portions corresponding to the overpass recess portion of the base has a cross-sectional shape of the overpass recess portion. A notch portion identical to the cross-sectional shape of the straight protective duct that has been copied is provided,
In the state where the lid is assembled to the base of the overpass protection cover, the front end surface on the opening side of the both side plate portions of the lid is in a state where there is almost no gap between the wall surface, and the entire base is The duct crossing apparatus according to claim 1, wherein the duct crossing apparatus is covered with a lid. The connection port of the overpass protection cover can be connected to a protective cover of a long wiring / piping material having the same outer shape as the straight protection duct following the cross-sectional shape of the overpass recess. The duct crossing apparatus according to claim 1 or 2, characterized by the above. Multiple types of straight protective ducts of different sizes, which are installed on the wall and contain the wiring and piping material inside, and are also installed on the wall and partially get over the straight protective duct A duct crossing device comprising an overpass protection cover in which a wiring / piping material accommodation path is provided,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
The cross-sectional shape of the overpass recess is the same as the cross-sectional shape of the maximum size straight protective duct, so that the maximum size straight protective duct is fitted without a gap,
The lid body includes both side plate portions and a top plate portion for connecting the both side plate portions, and the plurality of types of straight protective ducts are provided in portions corresponding to the overpass recesses of the base in the both side plate portions. Is provided with a minimum-size notch corresponding to the cross-sectional shape of the minimum-size straight protective duct,
One or a plurality of intermediate sizes corresponding to the cross-sectional shape of each of the straight protective ducts of the remaining sizes other than the minimum size are provided on the outer side of the portion where the notch portions of the minimum size are formed on both side plate portions of the lid. Alternatively , the duct crossing device is characterized in that one or a plurality of cutout portions for forming a cutout portion of the maximum size are formed . A straight protective duct installed on the wall surface and containing the wiring and piping material inside, and a straight protective duct that is also installed on the wall surface and is substantially orthogonal to the straight protective duct. A duct crossing device comprising a crossing protection cover provided inside with a wiring / piping material accommodating passage,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
By making the width of each opposing inner surface along the crossing direction of the overpass recessed portion the same as the width of each opposing outer surface along the width direction of the straight protective duct, the Jo protection duct a possible clamping, each opposing inner surface, both get over duct, characterized in that has a placement posture positioning portion defining a substantially orthogonal arrangement attitude of the protective cover move over against the straight protection duct system . A straight protective duct installed on the wall and containing the wiring and piping material inside, and a wiring and piping material installed on the wall and partially over the straight protective duct. A duct crossing device comprising a crossing protection cover with a passage provided therein,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
Each opposing inner surface of the opposing portion of the inner surface of the overpass recess has only one of the opposing outer surfaces of the straight protective duct in contact with the other outer surface, and is not in contact with the other outer surface. Is also an arrangement posture positioning part that determines the substantially orthogonal arrangement posture of the overpass protection cover with respect to the straight protective duct,
The lid body includes both side plate portions and a top plate portion connecting the both side plate portions, and a portion of the both side plate portions corresponding to the overpass recess of the base has a cross section of the straight protective duct. Corresponding to the shape, each is provided with a notch that accommodates the straight protective duct without gaps,
The duct crossing apparatus , wherein the lid can be assembled to the base in a state where the arrangement posture positioning portion of the base is in contact with one of the opposing outer surfaces of the straight protective duct . 7. The duct according to claim 6, wherein the connection port of the overpass protection cover is connectable to a long wiring / piping material protection cover having the same outer shape as the straight protection duct. Passover device. Multiple types of straight protective ducts of different sizes, which are installed on the wall and contain the wiring and piping material inside, and are also installed on the wall and partially get over the straight protective duct A duct crossing device comprising an overpass protection cover in which a wiring / piping material accommodation path is provided,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
The width along the crossing direction of the facing portion of the inner surface of the overpass recess is formed equal to or wider than the width of the maximum size of the straight protective duct,
The lid body includes both side plate portions and a top plate portion for connecting the both side plate portions, and the plurality of types of straight protective ducts are provided in portions corresponding to the overpass recesses of the base in the both side plate portions. Each of which is provided with a notch of the minimum size corresponding to the cross-sectional shape of the minimum size of the straight protective duct,
One or a plurality of intermediate sizes corresponding to the cross-sectional shape of each of the straight protective ducts of the remaining sizes other than the minimum size are provided on the outer side of the portion where the notch portions of the minimum size are formed on both side plate portions of the lid. Or one or a plurality of cutouts for forming a maximum size cutout,
The duct crossing device , wherein the lid can be assembled to the base at at least two different positions shifted along the crossing direction .   In the state where the lid is assembled to the base of the overpass protection cover, the front end surface on the opening side of the both side plate portions of the lid is in a state where there is almost no gap between the wall surface, and the entire base is The duct crossing apparatus according to any one of claims 6 to 8, wherein the duct crossing apparatus is covered with a lid. Multiple types of straight protective ducts of different sizes, which are installed on the wall and contain the wiring and piping material inside, and are also installed on the wall and partially get over the straight protective duct A duct crossing device comprising an overpass protection cover in which a wiring / piping material accommodation path is provided,
The overpass protection cover is assembled with each other, and is composed of a base and a lid, the inside of which is a housing path for wiring / piping material. In the assembled state, long wiring / piping material is provided at both ends in the overriding direction. A connection port for connecting the protective cover of each is formed,
In order to avoid the interference with the straight protective duct and to be able to get over the base, the intermediate part along the crossing direction in the abutting part that abuts against the wall surface is separated from the wall surface in front view. By forming a raised portion that is raised in a substantially inverted U shape, a climbing recess is formed on the back side of the raised portion,
The inner surface of the overpass recess is in contact with at least a part of the outer surface of the maximum size of the plurality of types of straight protective ducts, so that the crossover protective cover is arranged substantially orthogonally with respect to the base. An arrangement posture positioning unit is provided,
The lid body includes both side plate portions and a top plate portion for connecting the both side plate portions, and the plurality of types of straight protective ducts are provided in portions corresponding to the overpass recesses of the base in the both side plate portions. Each of which is provided with a notch of the minimum size corresponding to the cross-sectional shape of the minimum size of the straight protective duct,
One or a plurality of intermediate sizes corresponding to the cross-sectional shape of each of the straight protective ducts of the remaining sizes other than the minimum size are provided on the outer side of the portion where the notch portions of the minimum size are formed on both side plate portions of the lid. Or one or a plurality of cutouts for forming a maximum size cutout,
The base and the cover constituting the overpass protection cover are assembled to each other so as to be relatively movable along the overpass direction of the overpass protection cover with respect to the straight protective duct in an assembled state. Features a duct crossing device.

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