JPH11229477A - Easily connectable u-shaped groove - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate connection by slightly tapering off the width of a bottom face from one end to the other end. SOLUTION: A U-shaped groove as long as 1 m is formed of a very thick galvanized sheet iron as thick as 2 mm. The upper part of a cross section shape is opened, for example, in U-shape, and the internal angle of a bottom face 11 and a side face 12 is approximately 100 degrees. The width of the bottom face 11 is outer size of 309 mm and inner size of 305 mm at a root part, and the outer size of 304 mm and the inner size of 300 mm at a slender edge part. the slender edge parts of the two U-shaped grooves are overlapped on each other in not exceeding 5 cm, and set in the inside of the thick root part to connect both. A long angle material is provided by being mount on a plurality of U-shaped groove reinforcing edges, and the lower side space of the reinforcing edge 2 can be covered at the same time when the U-shaped grooves are connected to each other. Thus, connection can be simply performed by overlapping the ends of the U-shaped grooves on each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a U-shaped groove which can be easily connected.

[0002]

2. Description of the Related Art Conventionally, a U-shaped groove made of concrete has been generally used. Concrete U-shaped grooves have advantages such as good weather resistance and good stability, but also have disadvantages such as heavy weight, poor workability, and difficulty in transportation. In order to solve this drawback, lightweight U-shaped grooves such as those made of plastic or steel plate have recently been used. Lightweight, easy to transport and work, but desirable, but difficult to butt and join because the whole is thin. It is of course possible to bend both ends to form a joining edge, join the joining edges together, and join them with bolts and nuts, but there is another problem that stacking becomes difficult.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a U-shaped groove which can be easily connected by using a steel plate.

[0004]

In order to solve this problem, according to the present invention, a bottom surface of a U-shaped groove made of a rigid thin plate and having a substantially U-shaped or substantially U-shaped cross section opened upward. Width is slightly tapered from one end to the other, and the length of a few centimeters, the bottom of the narrow end is attached to the bottom of the wide end. It is formed so that it can be fitted inside.

[0005]

DETAILED DESCRIPTION OF THE INVENTION A U-shaped groove having a length of 1 meter is formed by using an extremely thick galvanized steel sheet having a thickness of 2 mm. The cross-sectional shape is a U-shape with an open top, and the inner angle between the bottom surface and the side surface is about 100 degrees. The width of the bottom is 309 mm outside dimension and 305 mm inside dimension at the thick root, 304 mm outside dimension and 30 inside dimension at the narrow tip.
0 millimeter. When two such U-shaped grooves are placed on the inside of a thick root portion with their thin tip portions overlapped by about 5 cm, they can be fitted and connected substantially.

[0006]

Embodiment 1 FIG. 1 shows a U-shaped groove 1 formed of an extremely thick galvanized steel sheet having a thickness of 1.2 mm. The main body has a U-shape that opens upward, and the upper end is bent outward twice at a substantially right angle to form a reinforcing edge 2. The reinforcing edge has a small U-shape that opens downward. The inner angle between the bottom surface 11 and the side surface 12 is about 100 degrees. The opening is formed slightly wider so that the U-shaped grooves can be overlapped and connected, and can be stacked during storage and transportation. The reinforcing edge 2 forms an upper edge 21 formed so as to be substantially horizontal when installed, and a side edge 22 formed by bending the side edge downward substantially at a right angle.

FIG. 2 shows a side view of the U-shaped groove 1. In the figure, the outer fitting portion 3 is on the left and the inner fitting portion 4 is on the right.
It shows a state where the ends are overlapped. In general, when connecting by overlapping, the length is about 5 cm. For this purpose, the dimensions of the cross section at the root portion and the tip portion are slightly changed.

The width of the bottom surface 11 is an inner dimension, and the width of the outer fitting portion 3 is 304.
Millimeter, and 300 mm for the inner fitting portion 4.
The height of the side surface 12 is 300 mm for both the outer fitting portion 3 and the inner fitting portion 4. The width of the upper edge 21 of the reinforcing edge 2 is an outer dimension, 27 mm for the outer fitting portion 3 and 30 mm for the inner fitting portion 4. The width of the side edge 22 of the reinforcing edge 2 is an outer dimension,
Is 28 mm and that of the inner fitting portion 4 is 30 mm.

The width of the inner fitting portion 4 of the left U-shaped groove 1 is 3
00 millimeters, the outer dimensions are less than 303 millimeters. The connection can be made by internally fitting the outer fitting portion 3 of the right U-shaped groove 1 to the width of 304 mm with some margin. It can be slid around 10 cm in length.

As shown in FIG. 3, the side surfaces of the two U-shaped grooves are bent at the same angle, so that they can fit each other. The sides are the same height and just overlap. The upper edge of the reinforcing edge 2 is formed such that the inner fitting portion 3 is wider by 3 mm and the outer fitting portion 4 is externally fitted from above the reinforcing edge 2. Contrary to the main body, the side edge 22 of the outer fitting portion is formed to be narrow because the side edge 22 of the outer fitting portion is inside, and the side edge 22 of the inner fitting portion is preferably formed to be slightly wider. When formed in this way and connecting two U-shaped grooves,
Not only the bottom surface but also the side surface and the reinforcing edge are fitted with each other. The side edges of the overlapping reinforcing edges may be fixed using screws 5.

FIG. 4 shows an example in which a bent edge 6 substantially perpendicular to the main body is formed on the bottom surface 11 and both side surfaces 12 of the outer fitting portion 3 of the U-shaped groove 1. It is formed by extending the bottom surface and both side surfaces by about 3 cm and refracting outward at right angles. It is extremely effective for maintaining the cross-sectional shape, and since it is an external fitting,
It is convenient because it does not get in the way during connection. If a connection hole 7 is formed in the refraction edge 6, it is convenient at the time of connection or the like.

FIG. 5 shows an angle plate 8. Two strips 81 of 3 cm wide and 10 cm long provided with two connecting holes 7 are formed of an extremely thick galvanized steel sheet having a thickness of 3.2 mm.
It is formed in a shape in which the inner angles are connected at about 100.
Of course, it may be integrally formed in a boomerang shape in advance.

The U-shaped groove is reinforced by connecting the vertical and horizontal bending edges 6 to each other on the outer surface of the angle plate 8 using bolt nuts. Since the rib effect works, the holding force of the cross-sectional shape becomes very large.

As shown in FIG. 6, when an angle member 81 longer than the width of the bottom surface is attached to the bent edge 6 of the bottom surface and protruded sideways from both sides of the bottom surface, a U-shaped groove is formed. It is effective in preventing lifting.

As shown in FIG. 7, the provision of a groove-shaped bead 9 which is continuous from the bottom surface to both side surfaces so as to be orthogonal to the longitudinal direction of the U-shaped groove 1 and which is stamped outward is also effective for reinforcement and effect. Is big. If a plurality of such parts are attached to portions other than the inner fitting portion, such as the outer fitting portion 3 and the middle, the reinforcing effect is very large.

As shown in FIG. 8, a long angle material 81 is used.
May be provided over the reinforcing edges 2 of the plurality of U-shaped grooves to connect the U-shaped grooves and simultaneously cover the space below the reinforcing edges. At the point where the reinforcing edge 2 of the outer fitting portion and the inner fitting portion overlap, when the side edges 22 are connected by using the screw 5, they may be fixed at the same time.

[0017]

Since the present invention is configured as described above, the following effects can be expected. 1. A lighter U-shaped groove can be provided as compared with concrete. 2. Since they are formed of thin plates, they can be easily connected by overlapping the ends of the U-shaped grooves. In addition, the overlap length can be adjusted slightly, and by changing the left and right overlap lengths, it is possible to cope with a slight curve. 3. The U-shaped groove main body can be stacked or the like, and can be stored compactly during storage and transportation. 4. Since it is lightweight and easy to carry, it is suitable for construction on mountain tops. 5. Since it can be reinforced with a bend or a bead, it is formed of a thin plate, but has high strength. 6. Although the light U-shaped groove has a drawback of floating due to frost heave and the like, in the present invention, since the lift prevention plate protrudes to the side and is buried in the ground, there is no problem of frost heave even with a light weight.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a U-shaped groove.

FIG. 2 is a side view showing a connection state of a U-shaped groove.

FIG. 3 is a front sectional view showing a connection state of a U-shaped groove.

FIG. 4 is a front view showing an example of an end of a U-shaped groove.

FIG. 5 is a plan view showing an example of an angle plate.

FIG. 6 is a perspective view showing an example of an angle member.

FIG. 7 is a perspective view showing an example of a state of reinforcement of a U-shaped groove.

FIG. 8 is a front sectional view showing a mounting state of an angle member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 U-shaped groove 11 bottom surface 12 side surface 2 reinforcing edge 3 outer fitting portion 4 inner fitting portion 5 screw 6 bending edge 7 connecting hole 8 angle plate 81 angle material 9 bead

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[Procedure amendment]

[Submission date] December 28, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

The width of the bottom surface 11 is an inner dimension, and the width of the outer fitting portion 3 is 304.
Millimeter, and 300 mm for the inner fitting portion 4.
The height of the side surface 12 is 300 mm for both the outer fitting portion 3 and the inner fitting portion 4. The width of the upper edge 21 of the reinforcing edge 2 is an outer dimension, 27 mm for the outer fitting portion 3 and 30 mm for the inner fitting portion 4. The width of the side edge 22 of the reinforcing edge 2 is an outer dimension,
Is 28 mm and that of the inner fitting portion 4 is 30 mm. The width of the required original plate, which is the sum of the above values, is
About 1014 mm on the fitting part 3 side, about 1 on the inner fitting part 4 side
020 millimeters. The length is the same on both sides
Therefore, the shape of this U-shaped groove developed in a plane is almost rectangular.
is there. Elongation of the material at the time of bending and adjustment of the reinforcing edge at the production stage
At the stage of actual mass production, the U-shaped groove of the present invention
Can use a rectangular original plate.

Claims (4)

[Claims] In a U-shaped groove made of a rigid thin plate and having a substantially U-shaped or U-shaped cross section opened upward, the width of the bottom surface extends from one end to the other end. Characterized in that the bottom surface of the narrow end is formed so that the bottom surface of the narrow end can be fitted into the bottom surface of the wide end within a range of several centimeters in length. Easy U-shaped groove. 2. The wide end portion according to claim 1, wherein the reinforcing groove and / or the reinforcing edge is formed to protrude outward along the edge. The described U-shaped groove for easy connection. 3. The upper edge of the side surface is bent outward in a substantially L-shape or a substantially U-shape to form a reinforcing edge, and when the bottom surface of the end portion is fitted inside, the reinforcing edge at the upper end of the side surface also becomes The U-shaped groove according to any one of claims 1 and 2, wherein the U-shaped groove is easily connected. 4. The width of the opening is formed wider than the width of the bottom so that at least one half of the height can be overlapped when the same standard is stacked. An easily connectable U-shaped groove according to any one of claims 1 to 3.