JP3065562B2 - U-shaped groove - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a U-shaped groove.

[0002]

2. Description of the Related Art Conventionally, concrete U-shaped grooves have been mainly used as U-shaped grooves. However, since the concrete U-shaped groove is heavy, it is difficult not only to work but also to transport and store it, and in recent years, a resin U-shaped groove has been used. Since the U-shaped groove made of resin has a small wall pressure and low rigidity, the side wall may receive a lateral force (earth pressure) and fall down inward.

In order to prevent this, a U-shaped groove 50 reinforced by a reinforcing member 40 as shown in FIG. 5 has been devised. The reinforcing member 40 has a pair of fitting members 53, 53 arranged along the upper ends of both side wall portions so as to have rigidity to prevent the side wall portion 52 of the U-shaped groove 50 from falling inward due to earth pressure. And the pair of application members 5
A plurality of bridging members 54, 54 which are arranged so as to bridge between the upper ends of both side walls of the U-shaped groove 50 between the upper and lower ends of the U-shaped groove 50 and which are connected to a pair of fitting members 53, 53 at both ends.
And is constituted by. In addition, the fitting member 53 and the bridging member 54 are formed of an angle type steel material having an L-shaped cross section. The reinforcing member 40 thus configured is fixed to the upper end of the U-shaped groove by fixing means 55 such as rivets or bolts and nuts. Also,
In the U-shaped groove 50, a large number of concave streaks 56 and convex streaks 57 extending in a direction orthogonal to the longitudinal direction are formed in the bottom wall portion 51 and both side wall portions 52, 52 so as to improve the rigidity, It is shaped like a wave in the longitudinal direction.

[0004]

However, in the above-mentioned conventional U-shaped groove, in order to fix the reinforcing member 40 to the upper end of the U-shaped groove, a pair of fitting members 53, 53 constituting the reinforcing member 40 are formed. A receiving portion 58 having a horizontal receiving surface is formed. In order to form the receiving portion 58, the concave 56 and the convex 57 formed at an angle in order to improve the rigidity due to the restriction of the molding die have a shape disappearing in front of the upper ends of the side walls 52, 52. I have. That is, each of the side walls 52, 5
When the rigidity of the base of each receiving portion 58 formed at the upper end of 2 is insufficient and a pressure P such as a large earth pressure is applied, as shown by a dotted line in FIG. However, there is a problem that the U-shaped groove is deformed.

Accordingly, an object of the present invention is to provide a highly rigid U-shaped groove which can withstand a large pressure such as earth pressure and prevent deformation even if it is formed of a resin material.

[0006]

The present invention has the following arrangement to achieve the above object. That is, the present invention
The bottom wall and both side walls are formed integrally and provided in a U-shaped cross section so as to form a fluid passage. A large number of concave and convex ridges extending in a direction perpendicular to the direction are formed, and in the U-shaped groove formed in a corrugated shape, the concave and convex ridges are formed up to respective upper ends of the side wall portions, A partition wall is formed at each upper end of the both side wall portions and is integrally formed with the side wall portion to fill the concave streak.

The recesses are recesses formed on the inner surface side of each of the side walls, and the partition is formed so as to fill the recesses, so that the partition has a suitable rigidity. The groove can be appropriately and easily formed.

In addition, a pair of fitting members arranged along each of the upper ends of the side wall portions and the pair of contact portions so as to have rigidity so as to prevent the side wall portions from falling inward due to earth pressure due to earth pressure. The reinforcing member consisting of a plurality of bridging members connected to a pair of fitting members is fixed at both ends so as to bridge between the upper ends of both side walls between the members. U with high rigidity
The groove can be appropriately and easily formed. In addition, by forming the partition part in a concave streak formed on the inner surface side of each side wall part,
A receiving line, which is a straight line that can abut the fitting member, can be formed inside the upper end of the side wall portion. Therefore, the pressure such as earth pressure can be appropriately received by being dispersed by the reinforcing material.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a partially cutaway perspective view of a U-shaped groove according to the present invention, and FIG. 2 is an assembled perspective view of the embodiment of FIG. FIG. 3 is a front view of the embodiment of FIG. 1, and a right half of the drawing is a cross-sectional view taken along a bottom ridgeline of a concave streak formed inside the waveform. FIG. 4 is a front view of the embodiment shown in FIG. 1, and the right half of the drawing is a cross-sectional view cut along the ridge line of the ridge bulging inward in the waveform.

The U-shaped groove 10 is formed by the U-shaped groove main body 12 and the reinforcing member 2.
0. The U-shaped groove main body 12 is integrally formed of a resin material. As a material of the resin, for example, there is a medium density polyethylene. In addition, this type of U-shaped groove main body 12 can be suitably molded by rotational molding. According to the rotational molding, the thickness of each part of the U-shaped groove main body 12 can be molded so as to be basically uniform.

The U-shaped groove main body 12 is made of a resin material and has a bottom wall 14 and both side walls 1 to form a fluid passage.
5 and 15 are integrally formed to have a U-shaped cross section, and a number of concave stripes extending in a direction perpendicular to the longitudinal direction of the bottom wall portion 14 and both side wall portions 15 and 15 so as to improve rigidity. It is also a U-shaped groove formed into a corrugation so that the ridges 16 and the ridges 17 are formed.

In this embodiment, both side walls 15 are provided so as to be inclined outward with respect to the bottom wall 14. The cross section has an inverted trapezoidal frame shape in which the bottom side having the open upper surface is shorter. By inclining the side wall portion 15 outward in this manner, the component of the force acting on the side wall portion 15 due to earth pressure is dispersed, and the deformation of the side wall portion 15 is suppressed. In addition, the U-shape according to the present invention widely includes a U-shaped cross section in which a fluid passage is to be formed, for example, a U-shaped cross section having an open upper surface, or a semicircular frame having an open upper surface. This is a concept that includes shapes and the like.

Each of the ridges 16 and the ridges 17 are formed so as to be continuous with the bottom wall 14 and the side walls 15, 15.
In the present invention, the present invention is not limited to this.
7 may be intermittent or, if formed intermittently, may be arranged in a staggered manner. Then, each concave line 16 and convex line 1
7 are formed up to each upper end 15 a of each side wall portion 15. For this reason, it is in a form that is resistant to earth pressure and hardly deformed inward. Reference numeral 18 denotes a partition, and each side wall 1
5 is formed integrally with the side wall portion 15 at the upper end 15a, and is formed so as to partially fill the concave streak 16 of the concave streak 16 and the convex streak 17. Partition section 18 of the present embodiment
Has a thickness equal to the thickness of the bottom wall portion 14 and the side wall portions 15, 15, and forms a horizontal plate surface at each upper end 15 a of each side wall portion 15 (see FIG. 3). As a result, it is possible to suitably oppose the pressure in the torsional direction in particular, acts to maintain the shape of the waveform suitably, and realizes a highly rigid form that is very hard to deform as the U-shaped groove body 12 alone. I have. That is, the partition 18 functions as a suitable reinforcing wall so as to significantly improve the rigidity of the U-shaped groove main body 12. Further, the upper end 15a of the side wall portion 15 configured as described above.
Is a portion to which the reinforcing member 20 is fixed, and has a form in which the rigidity of the portion is suitably improved.

Further, in this embodiment, the partition 18 is in a state in which the upper end of the groove 16 formed on the inner surface side of each side wall 15 is buried in a thin layer, that is, the side end face of the groove 16 is closed. (See FIG. 3). Thus, the partition 1
Forming 8 can be easily performed by so-called rotational molding. Then, by forming the partition wall portion 18 on the concave ridge 16 formed on the inner surface side of each side wall portion 15 in this way, an applying member 22 of a reinforcing material 20 described below is formed inside the upper end 15 a of the side wall portion 15. Receiving line 19, which is a straight line abutting on
(See FIG. 2). Therefore, this receiving line 1
9, the pressure such as earth pressure can be suitably dispersed and received by the reinforcing member 20, and the rigidity of the U-shaped groove 10 can be significantly improved.

Next, the reinforcing member 20 will be described. Reference numeral 22 denotes an application member, and upper ends 15 of both side wall portions 15 and 15 are provided.
a, 15a are disposed in the longitudinal direction along each of the lines. The pair of contact members 22, 22 are constituent elements of the reinforcing member 20, and are formed from an angle-type steel material having a substantially L-shaped cross section. That is, each of the applying members 22 is applied from the inside along each upper end 15a of each of the side wall portions 15, and one side 22a of the L-shaped cross section is formed on the inner surface thereof by the partition wall portion 1.
8 and the other side 22 b is arranged downward along the inner surface of each side wall 15.
Therefore, unlike the conventional configuration shown in FIG. 5, one side of the L-shape does not protrude upward, and a simple appearance can be achieved.

Reference numeral 24 denotes a bridging member, which is provided between the pair of fitting members 22 and 22 at the upper ends 15 of the side walls 15 and 15.
a, 15a, and are connected to a pair of fitting members 22, 22, respectively, at both ends.
The bridging member 24 is a component of the reinforcing member 20, and in this embodiment, two bridging members 24 are provided. However, the present invention is not limited to this, and a plurality of bridging members may be used.

The bridging member 24 is formed of an angle type steel material having a substantially L-shaped cross section, and has one side 2 of the L-shaped cross section.
4a, both ends of the horizontal member are connected to the horizontal plane (one side 22a of the L-shaped cross section) of each of the applying members 22, and the other side 24b is arranged downward. Therefore, unlike the conventional configuration shown in FIG. 5, one side of the L-shape does not protrude upward, and a simple appearance can be achieved. Reference numeral 26 denotes a connecting means, which connects the pair of applying members 22, 22 and the bridging member 24. As the connecting means, a rivet-shaped member as shown in FIG. 4 or a bolt and a nut can be used. The form of the reinforcing member 20 is not limited to the ladder shape as in the present embodiment, and may be a truss type in which a diagonal line is reinforced in addition to the pair of fitting members and the plurality of bridging members.

Reference numeral 28 denotes fixing means. As the fixing means, it is a matter of course that a rivet-shaped one as shown in FIG. 4 or a bolt and a nut can be used. The reinforcing member 20 is fixed to the U-shaped groove main body 12 at the top end portion (ridge line portion) of the protruding ridge 17 bulging inward from each of the fitting members 22 by the fixing means 28. By fixing the reinforcing member 20 in this manner, the U-shaped groove 10 having extremely high rigidity can be appropriately and easily configured. By the way, in order to fix the reinforcing member 20 to the U-shaped groove main body 12, the partition 1 of the U-shaped groove main body 12 is required.
Needless to say, it is also possible to fix the member 22 to the fixing member 8 by fixing means.

When the reinforcing member 20 is fixed to the U-shaped groove main body 12 by the fixing means 28 as described above, the connecting means 26 corresponds to the concave stripe 16a formed on the outer surface of each side wall portion 15. If you set it to be located
The connecting means 26 does not interfere with the U-shaped groove main body 12 (see FIG. 4). Therefore, the reinforcing material 20 is attached to the U-shaped groove body 12.
Can be properly fixed.

According to the U-shaped groove 10 formed as described above, as shown in FIG. 3 and FIG. And can be used as a drainage channel. In addition, in this embodiment, the connection between the U-shaped grooves 10 may be performed through the connection portions provided at both ends. When drainage flows into a drainage channel in which the plurality of U-shaped grooves 10 are connected to each other in a long length, since the uneven wall is formed on the inner wall of the article, the flow force is weakened and the flow velocity is reduced. Can be done. For this reason,
It can be suitably used as a drainage channel or a gutter on a slope. As described above, the present invention has been described variously with reference to preferred embodiments. However, the present invention is not limited to the embodiments, and it is needless to say that many modifications can be made without departing from the spirit of the invention. That is.

[0021]

According to the present invention, the ridges and the ridges are formed up to the respective upper ends of the side walls, and are formed integrally with the side walls at the respective upper ends of the side walls. By providing the partition wall portion that fills in, the U-shaped groove main body as a single body realizes a very rigid and highly rigid form. The upper end of the side wall is a portion to which the reinforcing material is fixed, and has a form in which the rigidity of the portion is suitably improved. For this reason, according to the present invention, even if it is formed of a resin material, it is possible to obtain a highly rigid U-shaped groove capable of withstanding a pressure such as a large earth pressure and preventing deformation. .

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing one embodiment of a U-shaped groove according to the present invention.

FIG. 2 is an assembled perspective view of the embodiment of FIG. 1;

FIG. 3 is a front view showing a right half of the embodiment of FIG. 1 in a sectional view.

FIG. 4 is a front view showing a right half of the embodiment of FIG. 1 in a sectional view.

FIG. 5 is a cross-sectional front view of a right half explaining a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 U-shaped groove 12 U-shaped groove main body 14 bottom wall part 15 side wall part 15a upper end 16 concave strip 17 convex strip 18 partition wall part 20 reinforcing member 22 applying member 24 bridging member 26 connecting means 28 fixing means 30 ground

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Jikgyo Sho 44-280 (JP, Y1) Jikgyo 48-36356 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) E03F 5/04

Claims (3)

(57) [Claims] A bottom wall and both side walls are formed integrally and are formed in a U-shaped cross section so as to form a fluid passage, and the bottom wall and both sides are formed to improve rigidity. In the U-shaped groove formed in a corrugated shape so that a large number of concave stripes and convex stripes extending in a direction orthogonal to the longitudinal direction are formed on the wall portion, the concave stripes and the convex stripes extend to respective upper ends of the side wall portions. A U-shaped groove which is formed and has a partition portion formed integrally with the side wall portion at each upper end of the both side wall portions to fill the concave streak. 2. The ridge according to claim 1, wherein the ridge is a ridge formed on the inner surface of each of the side walls, and the partition is formed to fill the ridge. U-shaped groove. 3. A pair of fitting members arranged along each of the upper ends of the side wall portions so as to have rigidity so as to prevent the two side wall portions from falling inward due to earth pressure, and the pair of fitting portions. A reinforcing member composed of a plurality of bridging members connected to a pair of fitting members at both ends is arranged so as to bridge between the upper ends of both side wall portions between the members, and is characterized in that it is fixed. The U-shaped groove according to claim 1 or 2, wherein the U-shaped groove is formed.