JP2001208279A - Branch cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a T-shaped branch cover with strength sufficient for walking thereon, by adopting a structure reinforcing an upper cover and simply constitute a reinforcing structure at low cost. SOLUTION: This T-shaped three-way branch cover 11 is provided with a cover body 13, the upper cover 14, and three opening ends 15, 16, 17 for inserting pipes formed on the cover body 13 and the upper cover 14. Three-types of pipe arrangement paths w1-w3 communicated with each other from each opening end to other opening end are formed and the three types of piping paths w1-w3 are covered with this branch cover. Reinforcing members 22, 27 having a truncated chevron shape in the bottom view and crossing in the directions along the pipe arrangement paths w1-w3 respectively are provided in such a state as extending across the both end sides 14b, 14b in the back of the top cover 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch cover for covering a branch portion of a long body such as an air-conditioning pipe, a gas conduit, or a power cable, and more particularly, to a branch cover between a cover body and the cover body. In a state where a space for accommodating the elongate body is secured, an upper lid that is detachable from the cover body is provided, and three or more opening ends for inserting the elongate body formed by the cover body and the upper lid are provided. The present invention relates to a branch cover configured to form a plurality of elongated body routing paths that communicate with each other from each opening end to other opening ends, and to cover the plurality of elongated body routing paths. .

[0002]

2. Description of the Related Art As shown in Japanese Patent Application Laid-Open No. H11-223292, a general cover for covering a long body such as a pipe is provided on the left and right sides of a support girder (reference numeral 3) for mounting and supporting the pipe. And a top cover (reference numeral 5) placed over the upper end portions of the left and right side plates.
Is known. In this pipe cover, a reinforcement member (reference numeral 2) is provided on the back side of the top cover (reference numeral 5) to reinforce the pipe cover, so that an operator or the like walks on the top cover so as to be advantageous for repair and inspection of the pipe and the cover. It was possible to pass through.

[0003]

That is, as shown in FIG. 5, by providing the reinforcing members 2 at equal intervals in the pipe insertion direction on the back side of the upper lid 5, a person can walk the surface strength of the upper lid 5 by walking. It is enough to pass through. Since the reinforcing members 2 in this case may be all the same parts, the strength of the linear upper lid 5 can be improved relatively economically.

[0004] Considering the case where the upper lid is reinforced so that a person can walk on the branch cover 11 at the location where the pipe to be housed branches, as in a pipe cover of a T-shape in plan view shown in FIG. 15, the first to fifth reinforcing portions 62 to 66 arranged in the direction of the straight route w1 in the upper cover 61, as shown in FIG.
And the sixth to eighth lines arranged in a direction orthogonal to the straight route route w1.
It is immediately associated with the provision of the reinforcing portions 67 to 69.

However, the reinforcing means as shown in FIG. 15 requires a relatively large number and kinds of reinforcing members, and there is room for improvement in that it tends to be expensive and uneconomical. Means to increase the strength of the upper lid by increasing the thickness of the plate itself is also conceivable, but it is impossible to use the existing upper lid, and the weight is unnecessarily heavy, making it difficult to handle. is there.

An object of the present invention is to adopt a structure in which a branch cover such as a T-shape or a cross is reinforced in a manner similar to a straight pipe cover so as to obtain sufficient strength for walking on the cover. The advantage is that the reinforcement structure is simple or can be constructed at a low cost.

[0007]

Means for Solving the Problems [Structure] As shown in FIGS. 6, 7, and 9, the structure of claim 1 includes a cover body 13 and a cover body 13.
In a state where a space S capable of accommodating the elongated body P is secured between the cover body 13 and the cover body 13, the cover body 13 is provided with an upper cover 14 that is detachable from the cover body 13 and formed by the cover body 13 and the upper cover 14. Opening end portions 15 and 1 for inserting a long body
6 and 17 are provided at three or more locations to form a plurality of long body routing paths w1 to w3 that communicate with each other from the opening end to the other opening ends. In the branch cover 11 configured so as to cover the upper cover 14, a reinforcing strip portion r that intersects in a direction along each of the long body routing paths w1 to w3 is provided.

[0008] The configuration of claim 2 is as shown in FIG.
In the configuration of claim 1, the reinforcing strips r are provided on both sides 14b, 14b of the long body routing paths w1 to w3 in the upper lid 14.
, And the reinforcing members 22 and 27 are provided.

The structure of claim 3 is as shown in FIG.
In the configuration of the second aspect, the reinforcing members 22 and 27 are provided on the back surface side of the upper lid 14.

[0010] The structure of claim 4 is similar to that of FIG.
, The reinforcing members 33 and 34 are arranged so as not to intersect each other.

Note that, as described above, reference numerals have been written for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Operation] When reinforcing the upper lid (see Japanese Patent Application Laid-Open No. H11-223292) in which the left and right sides are supported by the cover body, for example, as shown in FIG. From the structure in which the reinforcing means 70, 70 along the long body routing path W of the pipe cover H are provided,
As shown in FIG. 5, a structure in which the reinforcing means 2 is provided in a direction intersecting with the long body route is preferable in terms of dynamics because the length and strength of the reinforcing means itself can be reduced.

Therefore, when the reinforcing strips as the reinforcing means are provided on the upper lid, the reinforcing strips intersect with the direction along each of the long body routing paths. It is possible to reinforce each of the long body routing paths so that they can be walked through, even though they are small-scale reinforcing strips, for example, the length is not short or the board thickness is not required to be too thick.

According to the second aspect of the present invention, since the reinforcing strips are formed by the reinforcing members disposed on both sides of the long body route in the upper lid, the reinforcing members are attached to the conventional upper lid. In this way, a ready-made upper lid can be used. And since the said both sides are the points supported by the cover main body, ie, the fulcrum points which support the upper lid, by providing the reinforcing member extending over both the fulcrum points, the weight acting on the upper lid is directly or almost directly covered. It becomes a state where the main body takes charge. Therefore, an excessive bending moment does not act on the upper lid, and from this point, it is possible to use a thin upper lid or a ready-made upper lid, or to efficiently provide necessary strength.

According to the third aspect of the present invention, since the reinforcing member is provided on the back surface side of the upper lid, the surface of the upper lid, which is a surface through which the user walks, can be easily made flat, and the reinforcing member can be seen from the outside of the cover. Will not be. In the means for providing the reinforcing member on the surface side of the upper lid, in order to secure strength even when the foot is placed only on the upper lid, for example, continuous fillet welding is performed between the reinforcing member and the upper lid. It is necessary to strongly integrate the upper cover with the reinforcing member, but in the configuration of the present invention in which the reinforcing member is disposed below the upper cover, the load applied to the upper cover presses the upper cover against the reinforcing member, so that several places are required. It suffices to provide only position control means such as spot welding or uneven fitting or a small mounting means, and the mounting means for the reinforcing member is simplified.

According to the fourth aspect of the present invention, since the reinforcing members are arranged so as not to intersect each other, both of the pair of intersecting reinforcing members are different from the other reinforcing members. Or the need for a specially shaped reinforcing member that straddles the reinforcing member is eliminated, so that it is possible to reduce the number of types of reinforcing members and to reduce the cost of press forming dies. become. or,
A bulky crossing part is present on the front side and it is difficult to walk and the appearance is poor, and a bulky crossing part is present on the back side so that there is no inconvenience of pressing down the accommodation space for the long body.

[Effect] In the branch cover according to any one of the first to fourth aspects, a reinforcing strip crossing the direction along each of the long body routing paths is provided on the upper lid.
The strength required to walk on the top lid can be realized with a small number of small reinforcing strips, and the top lid can be reinforced economically and efficiently.

In the branch cover according to any one of claims 2 to 4, since the reinforcing strip of the upper cover is formed by using a special reinforcing member extending on both sides of the long body route, the upper cover or the thin plate is manufactured. In addition to being economical because a thick top lid can be used, there is a high efficiency in which strength can be effectively increased with a short length reinforcing member.

In the branch cover according to the third aspect of the present invention, by providing the reinforcing member on the back side of the upper lid, the load applied to the upper lid can be reliably received by the reinforcing member, which is excellent in function and connected to the upper lid. The means can be simplified or omitted, and the cost can be reduced. Further, since there is no reinforcing member on the upper lid, there is an advantage that walking is easy and the appearance is improved.

In the branch cover according to the fourth aspect, it is possible to reduce the cost by reducing the number of types of the reinforcing members, and to increase the crossing portions of the reinforcing members, so that it is difficult to walk and the appearance is poor, or the space for the long body is reduced. There is an advantage that inconvenience can be avoided.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a situation in which a pipe cover H in which a pipe for air conditioning (an example of a long body) P is installed in a pipe support space V in an inner space is mounted on a plurality of pedestals B. . As shown in FIG. 7, the pipe cover H is configured by connecting a plurality of straight pipe covers 1 and a branch cover 11 in a longitudinal direction via a joint 12. These pipe covers H are made of a metal material such as a rolled steel plate or a stainless steel plate.

The straight pipe cover 1 has a cover body 8 formed by connecting a pair of side plate members 4 covering both sides of a support space V of the pipe P to both sides of a pipe support girder 3 capable of freely supporting the pipe P.
And a lid member 5 that covers the upper part of the support space V of the pipe P. That is, the cover body 8 and the cover body 8
The linear pipe cover 1 is constituted by a cover member 5 which is a detachable upper cover with respect to the cover main body 8 in a state where a space capable of accommodating the air conditioning pipe P is secured therebetween.

As shown in FIG. 2 to FIG.
Is constituted by a channel member having a cross-sectional shape of "C", with the opening having the C-shaped cross-section facing upward, and the pipe P mounted thereon. A bolt insertion hole 3a for attachment to the gantry B is provided at the bottom of the C-shaped cross section.
A plurality is provided at intervals in the longitudinal direction. On the other hand, at the bottom of the end of the pipe support girder 3 (the portion connected to the side plate member 4), a mountain-shaped bulging portion 3b is provided at an intermediate portion in the width direction, and the bulging portion 3b is provided. At the top of the side plate member 4
A bolt insertion hole 3c through which the connection bolt is inserted is formed.

On both sides of the bulging portion 3b, a pair of fitting notches 7 are provided in which a pair of projections 6 formed on the side plate member 4 can be individually fitted. The edge of the pipe support girder 3 is inclined along the inner peripheral surface of the side plate member 4 so as to abut the inner peripheral surface of the side plate member 4 to suppress displacement of the side plate member 4 toward the support space V. It is formed in a shape.

As shown in FIGS. 3 and 4, the side plate member 4 is
The upper and lower edges are bent toward the support space V, and the upper and lower middle portions are formed in a bulging shape on the opposite side to the support space V, thereby improving bending rigidity. In the lower edge of the side plate member 4, a bulging portion 4 a having a similar shape is formed at a portion where the bulging portion 3 b of the pipe supporting girder 3 overlaps (a connection portion with the pipe supporting girder 3).
A bolt insertion hole 4b similar to the bolt insertion hole 3c of the pipe support girder 3 is also formed at the top of the bulging portion 4a.

On both sides of the bulging portion 4a in the longitudinal direction, there are provided a pair of projections 6 which can be individually fitted in a pair of notches 7 formed in the pipe support beam 3. The protrusion 6 is attached to the side plate member 4.
Is formed by cutting and raising a part of the lower edge. Protrusion 6,
Notch 7, both bulging portions 3b, 4a, both bolt insertion holes 3c,
4b to form a connecting portion. Therefore, the connecting portions of the side plate member 4 and the pipe support girder 3 are overlapped with each other, and the bulging portions 3b and 4a are fitted together, and the projections 6 and the notches 7 are fitted together. Insertion hole 3
c and 4b are located on the concentric shaft, and thereafter, the connecting plate is inserted into these insertion holes, and the nut is screwed and tightened, so that the side plate member 4 and the pipe support beam 3 are provided with high rigidity. It becomes possible to connect in the state where it was set.

As shown in FIGS. 2 and 4, a bolt insertion hole 4c for mounting the lid member 5 is formed at a position corresponding to the bolt insertion hole 4b on the upper edge of the side plate member 4. The cover member 5 is placed on the upper edge 4A of the cover 4 and can be fixed by the mounting bolts 9. Incidentally, a nut 10 for screwing the mounting bolt 9 inserted through the bolt insertion hole 4c is fixed to the back surface portion of the side plate member provided with the bolt insertion hole 4c by welding.

As shown in FIGS. 1 to 5, the lid member 5 has a tread surface 5a as a top surface, a mounting surface 5b covering the upper edge 4A of the side plate member 4, and a space between the tread surface 5a and the mounting surface 5b. It has an inclined surface 5c and an inclined end surface 5d that extends outward from the mounting surface 5b, and is configured as a component having a substantially upwardly convex cross-sectional shape. A plurality of raised ridges 5e bulging upward along the routing path of the pipe P are formed at a plurality of intermediate portions in the width direction middle portion of the tread surface 5a to improve bending rigidity. Further, a bolt insertion hole 5f is provided at a position corresponding to the bolt insertion hole 4c of the side plate member 4 on each mounting surface 5b, which is a side edge of the lid member 5.

Therefore, with the lid member 5 placed on the side plate member 4, the mounting bolt 9 can be inserted through the bolt insertion holes 5f and 4c and screwed to the nut 10 to be mounted. In this case, as shown in FIG.
The reinforcing member 2 may be bent and tightened by the thickness of the reinforcing member 2 until the mounting surface 5b of the lid member 5 comes into surface contact with the mounting surface 5b. The washer may be interposed and tightened.

Reinforcing girders (an example of reinforcing strips and reinforcing members) 2 are fixed to the back surface of the lid member 5 at regular intervals (250 mm) in the longitudinal direction of the pipe P. Reinforcement girder 2
Is formed of a sheet metal material having a substantially downward convex section having a top surface 2a, a pair of vertical surfaces 2b, 2b, and a pair of mounting surfaces 2c, 2c. The mounting surfaces 2c, 2c are the tread surfaces 5 of the lid member 5.
a having a length which covers almost the entire width of the cover member 5a.
And extended to overlap both mounting surfaces 5b,
The vertical surface 2b is dimensioned so that a clear gap exists between both end edges and the back surface of the inclined surface 5c of the lid member 5. A plurality of locations straddling both mounting surfaces 2c, 2c and tread surface 5a;
The reinforcing girder 2 is fixedly integrated with the lid member 5 by spot welding at a position straddling both ends of the top surface 2a and the mounting surface 5b.

Next, the branch cover 11 will be described.
As shown in FIGS. 6 to 9, the branch cover 11 is detachable from the cover main body 13 in a state where a space S capable of accommodating the pipe P is secured between the cover main body 13 and the cover main body 13. And a cover body 1.
It is configured in a T-shape in plan view provided with three open ends 15, 16, 17 formed by the upper cover 3 and the upper cover 14 for inserting a pipe. As shown in FIG. 7, each of the opening ends 15, 1
The straight pipe cover 1 is often connected to the joints 6 and 17 via the joint 12.

The T-shaped branch cover 11 has a plurality of piping routes (elongated body routing routes) from each open end to another open end, that is, a first open end which is opposed to the first open end. 15 and a straight route route w1, 9 between the second open end portion 16
A left curving route w2 extending between the third opening end 17 and the first opening end 15 facing the 0 degree side, and a right curving route extending between the second opening end 16 and the third opening end 17. It has a route w3, and is configured to cover these plurality of piping routing routes w1 to w3. The structure of the branch cover 11 is basically based on the same technical concept as the structure of the straight pipe cover 1.

As shown in FIG. 6 and FIG.
As an example, one straight side plate 18 and right and left curved side plates 19 and 20 curved by 90 degrees are formed by three support girders 3 identical to those of the straight pipe cover 1 and longer than the support girders 3. The three long supporting girders 21 are connected and integrated. These side plates 18 to 20 have the same cross-sectional shape as the side plate member 4 described above, and are the same except that the straight side plates 18 differ only in length, and the curved side plates 19 and 20 are bent and have different lengths. That is, the cover body 13
Has basically the same structure as the cover body 8 of the straight piping cover 1.

As shown in FIGS. 6, 7, and 9, the upper cover 14
A T-shaped tread surface 14a which is a top surface, a mounting surface 14b which covers the upper edges 18A, 19A and 20A of the side plate members 18 to 20,
It has an inclined surface 14c between the tread surface 14a and the mounting surface 14b, and an inclined end surface 14d continuous to the outer side of the mounting surface 14b, and is configured as a component having a substantially upwardly convex cross-sectional shape. I have. In the middle of the tread 14a in the width direction, a pipe P
Ridges 1 bulging upward along the routing paths w1 to w3
4e are formed at a plurality of locations to improve the bending rigidity. In other words, the upper lid 14 basically has the same structure as the lid member 5 of the straight pipe cover 1, and corresponding portions are denoted by corresponding reference numerals.

Each of the three mounting surfaces 14b is provided with a bolt insertion hole 14f at a position corresponding to the bolt insertion hole 18c-20c of each side plate 18-20.
The upper lid 14 can be attached to the cover main body 13 by inserting the mounting bolts 9 into the bolt insertion holes 14f and 18c to 20c and screwing the nuts to the nuts 10 with the upper lid 14 placed on the 8 to 20. . As shown in FIG. 6, a non-slip sheet 28 is attached to the tread 14a so that it can be easily walked.

As shown in FIGS. 7, 9, and 10, the upper cover 14 of the branch cover 11 is similar to the cover member 5 of the straight pipe cover 1.
But it is reinforced so that people can walk on it. That is, a total of six reinforcing members 22 to 27 are provided on the back surface side of the upper cover 14, and five of these six reinforcing members 22 to 27 except for a sixth reinforcing member 23 described later are
Are arranged over the mounting surfaces 14b, which are both sides of the piping route.

The branch cover 11 is provided at each of the open ends 15 to 17.
Is arranged in the same straight path as that of the straight pipe cover 1 and a first three reinforcing members (hereinafter referred to as first to third reinforcing members 24 to 24) from each of the open ends 15 to 17. 2
6) 24 to 26 are reinforcing girders 2 of the straight pipe cover 1.
It is used itself. The distance between the first to third reinforcing members 24 to 26 and the outermost reinforcing girder 2 in the lid member 5 of the straight pipe cover 1 connected to each of the open ends 15 to 17 is adjacent in the straight pipe cover 1. It is set so as to be substantially equal to the interval (250 mm) between matching reinforcing girders 2 and 2.

The first reinforcing member 24 on the first opening end 15 side
And the second reinforcing member 25 on the second opening end 16 side,
A total of two fourth and fifth reinforcing members 22 and 27 having a length longer than the reinforcing girder 2 are arranged obliquely so as to form a “C” shape in plan view, and the fourth and fifth reinforcing members 22 and 27 are arranged. 27 Third
A straight route route w over the portions near the opening end 17
A sixth reinforcing member 23 having a short length parallel to 1 is provided.
By these three reinforcing members 22, 27, and 23, the upper cover 1
4, the central portion where the three types of routing routes w1 to w3 intersect is reinforced in an “A” shape. Fourth and fifth reinforcing members 2
Reference numerals 2 and 27 cross each other in the direction along each of the routing paths w1 to w3 of the pipe P, and are an example of the reinforcing strip r according to claim 1.

As shown in FIG. 10, the fourth and fifth reinforcing members 22 and 27 have top surfaces 22a and 27a and a pair of vertical surfaces 22a and 27a.
b, 27b and a pair of mounting surfaces 22c, 27c, and are formed in the same convex cross-sectional shape as the reinforcing girder 2. However, the fourth and fifth reinforcing members 22 and 27 and the top surface 1 of the upper lid 14
In order to dispose both ends of the sixth reinforcing member 23 between the mounting surfaces 22c and 27c, the mounting surfaces 22c, 27c
Parts 22d and 27d formed by partially cutting off
Is provided. In addition, at the side of the third opening end 17 on the top surfaces 22a, 27a of the fourth and fifth reinforcing members 22, 27,
Arc notch 2 corresponding to bolt insertion hole 14f of upper lid 14
2e and 27e are formed.

As shown in FIG. 10, the sixth reinforcing member 23
Is a single wide mounting surface 23 connecting the pair of top surfaces 23a, the pair of vertical surfaces 23b, and the pair of vertical surfaces 23b, 23b.
c) and made of sheet metal having a substantially concave cross section. As described above, both ends of the mounting surface 23c are connected to the fourth and fifth reinforcing members 22, 2 through the notches 22d, 27d.
7 to extend from the tread surface 14a to the mounting surface 23c.
Is applied to each mounting surface 14b via the fourth and fifth reinforcing members 22 and 27.

As shown in FIG. 9, the first to fifth reinforcing members 2
Reference numerals 4 to 26, 22, and 27 denote a welded portion y formed by spot welding (indicated by a symbol x in each drawing) at two locations extending between both ends of each top surface and each mounting surface 14b of the upper lid 14, and each mounting surface. And four places extending over the tread surface 14a of the upper lid 14, and a total of six places are formed and attached. The sixth reinforcing member 23 has the welded portions y formed and attached at four locations over the attachment surface 23c and the tread surface 14a.

As shown in FIG. 9, the fourth and fifth reinforcing members 2
2 and 27 are arranged such that a second straight line Z orthogonal to the first straight line X along the longitudinal direction is at an intermediate angle between the piping routes w1 to w3 passing through the reinforcing members 22 and 27.
To describe in detail the case of the fifth reinforcing member 27 on the right side, the angle of the second straight line Z is equal to the angle of the tangent L of the right curved route w3 at the intersection of the right curved route w3 and the first straight line X. , And an intermediate value with the angle of the straight route route w1. In other words, the included angle β between the first straight line X and the tangent line L and the included angle α between the first straight line X and the straight route route w1 are:
The arrangement angle of the fifth reinforcing member 27 is set so as to have an acute angle in each case.

Since the path on which the worker walks on the upper lid 14 is considered to be the same as the above-mentioned three routing paths w1 to w3, the fifth reinforcing member 27 is connected to the straight routing path w1 and the right curved path w1. By intersecting with both of the route paths w3 and setting the above-mentioned angular relationship, it is possible to approach a state in which both of the route paths w1 and w3 are orthogonal to each other as much as possible while being one fifth reinforcing member 27. Can be crossed. Therefore, the upper lid 14 can be reinforced in a well-balanced manner such that the reinforcing action of the two routing paths w1 and w3 can be obtained the same or almost the same.

For example, when the fifth reinforcing member 27 is provided in a state where one of the two included angles α and β is an obtuse angle, the reinforcing action of the straight route w1 and the right curved route w3 is enhanced. However, there is a waste in that reinforcement is performed so that sufficient strength is obtained even on the side where the reinforcing effect is small. Therefore, as in the configuration of the present application, by setting the included angles α and β so that their values are as close as possible to each other, it is possible to more effectively reinforce the upper lid 14 while making the reinforcing member as small as possible. Will be possible. In the sixth reinforcing member 23 as well, the included angle between the center line in the longitudinal direction and the left and right curved route routes w2 and w3 is set to γ which is equal to each other.

The above-described branch cover 11 is provided at each open end 15.
Cover body 13 and top cover 1 so that
4, the cover body 13 is longer than the upper cover 14 as shown in FIG. 13, for example, the cover body 13 is integral with the cover body 8 of the straight piping cover 1, for example. The branch cover 11 in which the opening ends 15 to 17 having the shape of a circle are formed may be used.

[Another Embodiment] As shown in FIG. 11, in the upper cover 29 for a T-shaped branch cover having a similar cross-sectional shape to the above-described branch cover 11 of the present embodiment and a small size, A reinforcing structure in which the components corresponding to the six reinforcing members 23 are omitted and a total of five reinforcing members 30 to 34 are provided may be used. The first to third reinforcing members 30 to 32 having a standard length and the fourth and fifth reinforcing members 33 and 34 (reinforcing strips r) having a long length are the same reinforcing members. In addition, the corresponding code | symbol is described in the location corresponding to the branch cover 11 of this embodiment.

FIG. 12 shows an upper lid 35 for a T-shaped branch cover which is similar in cross-sectional shape to the above-described branch cover 11 of the present embodiment and has a large size. This upper lid 35
Is formed in a divided structure in which an upper left cover portion 35A and an upper right cover portion 35B are connected via a joint 35C in order to reduce the size of the parts and the press die thereof. And
The reinforcing structure applied to the back surface of the upper lid 35 is basically the same as that of the above-described embodiment, but because of its large size, it is also required to serve as a connecting means for the left and right upper lid portions 35A and 35B. The upper cover 14 of the present embodiment has a structure in which three sixth reinforcing members 23 are provided.

That is, in the first to third reinforcing members 36 to 38 on the opening end side, the fourth and fourth reinforcing members 36 and 38 are arranged between the first reinforcing member 36 and the second reinforcing member 37. Fifth
Sixth to eighth reinforcing members 41 to 43 are provided across the reinforcing members 39 and 40 (reinforcing strips r) in parallel with the straight route route w1. The shapes and structures of the sixth to eighth reinforcing members 41 to 43 and the structure of the overlapping portion with the fourth and fifth reinforcing members 39 and 40 are the same as those of the present embodiment. In addition, the corresponding code | symbol is described in the location corresponding to the branch cover 11 of this embodiment.

The first, second, fourth, fifth reinforcing members 36,
37, 39, 40 are fixed to the upper lid 35 by spot welding, while the third, sixth to eighth reinforcing members 38, 4
1 to 43 are formed by a pair of bolts 44, 44 distributed across the dividing line of the left and right upper lid portions 35A, 35B.
The joint 35C is fixed to the upper lid 35 in a state where the joint 35C is fastened together. That is, the eight bolts 44 connect the left and right upper lid portions 35A and 35B, connect the joints, and connect the four reinforcing members.

The sixth reinforcing member 23 of the upper lid 14 of the present embodiment and the eighth reinforcing member 43 of the upper lid 35 shown in FIG. 12 have the same conditions for both the first and third routing paths w1 and w3. It can be a reinforcing strip part r that intersects. That is, if the portion that walks when turning on the upper lids 14 and 35 by 90 degrees approaches the outside of the left and right bends, the reinforcing members 23 and 43 intersect both the left and right routing paths w2 and w3. It is arranged. In addition, the second straight line (described above) of both reinforcing members 23 and 43 is also in a well-balanced arrangement state that is just a bisector of the tangent line (described above) of both routing paths w2 and w3.

Next, several examples of the reinforcing structure of the upper lid are shown as model diagrams in FIG. In the upper cover 45 of the T-shaped branch cover, as shown in FIG.
A structure in which a single reinforcing member 46 (r) symmetrical to the left and right in a substantially “human” shape at the intersection of w3 is provided on the back side (or front side) of the tread. As shown in FIG. 14-, a structure in which the fourth and fifth reinforcing members 47 and 48 (both r) are provided on the back side (or the front side) of the tread as the same reinforcing member in an arc shape. As shown in FIG. 14-, the fourth and fifth reinforcing members 49, 50
(Both r) are arranged in a “x” shape that crosses each other three-dimensionally, and are provided on the back side (or the front side) of the tread. Or
The reinforcing members 46 to 50 may be reinforcing strips r integrally formed by making the upper lid 45 itself uneven by press molding.

As shown in FIG. 14-, in the upper cover 51 of the three-way branch cover having an equal angle, the route w of the curve is all curved.
A structure in which the intersections of 1 to w3 are provided on the back side (or the front side) of the tread by arranging three reinforcing members 52 (r) in a regular triangular shape. As shown in FIG. 14-, the crossing portion of the six types of routing paths w1 to w6 in the upper lid 53 of the four-sided cover (cross cover) having an equal angle is formed into a single reinforcing member 54 ( r) is provided on the back side (or the front side) of the tread to reinforce it. As shown in FIG.
The upper lid 53 is provided with four arc-shaped reinforcing members 55 (r) arranged symmetrically on the back side (or the front side) of the tread surface so as to have a substantially “X” shape. Or, these reinforcing members 5
2, 54, 55 are formed by pressing the upper lid 51 or 5
The reinforcing strip 3 may be formed integrally by making the 3 itself uneven.

In the reinforcing structure shown in FIGS. 14 and 15, the reinforcing members 46, 52, 54 and 55 are connected to the respective routing paths w1.
Since it is possible to intersect at right angles to ｗw6, there is an advantage that the strength can be efficiently improved with a small number of reinforcing members.

In the case where the upper lid is made uneven by press molding, a tread can be basically made flat by providing a concave reinforcing strip r which is convex toward the back side (downward side). It is possible to make it easier.

[Brief description of the drawings]

FIG. 1 is a perspective view of a partially cutaway showing the structure of a straight piping cover.

FIG. 2 is a schematic exploded perspective view of FIG.

FIG. 3 is a sectional view of a pipe cover at a reinforcing girder portion of a lid member.

FIG. 4 is a cross-sectional view of the pipe cover at a portion where the lid member and the cover body are attached.

FIG. 5 is a perspective view showing the back side of the lid member.

FIG. 6 is a perspective view showing a branch cover.

FIG. 7 is a plan view showing the connection of a pipe cover and a routing route.

FIG. 8 is a plan view showing a schematic structure of a cover body.

FIG. 9 is a bottom view showing the back surface of the upper cover of the branch cover.

FIG. 10 is an exploded perspective view showing a structure of first to third reinforcing members.

FIG. 11 is a bottom view showing a first alternative structure of the upper lid.

FIG. 12 is a bottom view showing a second alternative structure of the upper lid;

FIG. 13 is a perspective view showing another structure of the branch cover.

FIG. 14 is a model diagram showing various other structures of the upper cover reinforcing structure.

FIG. 15 is a bottom view showing a comparative example of the upper lid reinforcing structure.

FIG. 16 is a bottom view showing a comparative example of the lid member reinforcing structure; and a bottom view showing a comparative example of the upper lid reinforcing structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Branch cover 13 Cover main body 14 Upper lid 14b Edge 15-17 Open end 22,27,33,34 Reinforcement member r Reinforcement streak w1 w3 Elongate body routing path S Elongate body accommodation space

Claims (4)

[Claims] 1. A cover body, and an upper lid detachable from the cover body in a state where a space for accommodating a long body is secured between the cover body and the cover body. Providing three or more opening end portions for insertion of a long body formed with the upper lid, forming a plurality of long body routing paths from each opening end to the other opening end,
A branch cover configured to cover the plurality of long body routing paths, wherein a reinforcing strip that intersects in a direction along each of the long body routing paths is provided on the upper lid. Branch cover. 2. The branch cover according to claim 1, wherein the reinforcing strips are formed of reinforcing members disposed on both sides of the long body route in the upper lid. 3. The branch cover according to claim 2, wherein the reinforcing member is provided on a back surface side of the upper lid. 4. The branch cover according to claim 2, wherein each of the reinforcing members does not cross each other.