JP2001003441A - Mold device for u-shaped gutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a U-shaped gutter with different right and left side wall thicknesses as well as different right and left side wall heights and bottom part thicknesses merely by a single molding device. SOLUTION: Side wall attachments 12A and 12B with different thicknesses are installed detachably on at least one of a pair of right and left side frames 3A and 3B. The side wall attachments 12A and 12B are separable in vertical direction, and connected so that the surfaces 12a and 12b of these separable side wall attachments 12A and 12B are flush with each other, and adjusting members with different heights are installed replaceably on a base part.

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 forming apparatus for manufacturing a U-shaped groove embedded in a road or the like.

[0002]

2. Description of the Related Art Conventionally, various U-shaped gutters to be buried in roads and the like have been developed in consideration of a place to be buried, a flowing water amount, construction cost, and the like. As general U-shaped side grooves, many U-shaped left and right walls whose width dimension gradually increases from the bottom toward the upper opening are manufactured and constructed.
Also, those having a laterally protruding earth retaining portion (also referred to as a “heel portion”) are manufactured and constructed.

As shown in FIG. 7, a U-shaped side groove 10 in which the width H of the U-shaped right and left walls is constant in the height direction.
1 is also manufactured. Also in this type of U-shaped side groove 101, there are various types in which the thickness of the left and right side walls 101a and 101b, the thickness of the bottom portion 101c, and the like are variously different.
There are various types, such as one having a soil retaining portion 101d protruding to the side. This type of U-shaped side groove 101 is provided with a side groove cover S
8, and has many advantages, such as excellent economic efficiency, and as shown in FIG. 8, the slope of the waterway bottom can be freely set by the adjusted concrete 102.

[0004] The formwork device for manufacturing such a U-shaped side groove is provided with a formwork device corresponding to each of the U-shaped right and left walls even if the thickness and length of the right and left walls are different. Various U-shaped gutters made of concrete are manufactured by pouring and curing concrete in this formwork apparatus.

[0005]

However, it is enormous cost to manufacture the formwork devices individually until the width dimension H of the U-shaped right and left walls is constant from the bottom to the upper opening. There was such a problem. In the case of molding the laterally protruding earth retaining portion 101d, it is necessary to separately manufacture a mold device in which the earth retaining frame is integrated, and there is a problem that the cost is particularly large.

In view of the above, the present invention provides a U-shaped left and right side groove having a constant width from the bottom to the opening, in which the width of the left and right walls is different from each other, as well as the height of the left and right walls and the thickness of the bottom. It is an object of the present invention to provide a U-shaped side groove form device that can be manufactured by a single form device even if the shape is different or has a retaining portion.

[0007]

In order to achieve the above object, a gutter device for a gutter according to claim 1 of the present invention is provided.

According to the first aspect of the present invention, when a plurality of side wall attachments having different thicknesses are prepared, and these are exchanged and attached to the pair of left and right side frames, the U-shaped left and right side walls are formed. U-shaped side grooves having different thicknesses can be molded. In addition, since the side wall attachment is separable in the vertical direction, the height of the side wall attachment is adjusted by using all of the separable side wall attachments, or by using only some of them. So that the U-shaped right and left walls have different heights
It is possible to form a character-shaped side groove.

According to a second aspect of the present invention, based on the first aspect of the present invention, the U-shaped side groove formwork device is provided on the base portion corresponding to the height of the U-shaped left and right walls. An adjusting member for adjusting the height is exchangeably mounted.

According to the second aspect of the present invention, the height of the U-shaped right and left walls is adjusted by the separable side wall attachment, and the height of the base portion is adjusted in accordance with the height. By exchanging, the U-shaped side grooves having different heights of the right and left U-shaped walls can be formed.

According to a third aspect of the present invention, there is provided a formwork device for a U-shaped side groove based on the premise of the first aspect, wherein one of the pair of left and right side frames has an earth retaining portion projecting laterally. A molded retaining frame is detachably attached, and the surface of the retaining frame and one surface of the detachable side wall attachment are connected to be flush with each other.

According to the third aspect of the present invention, since the retaining frame is attached to one of the pair of left and right frames,
A U-shaped side groove having a laterally projecting earth retaining portion can be molded. Further, when the height of the separable side wall attachment is adjusted while the retaining frame is attached to one of the pair of left and right side frames, the U It is possible to form U-shaped side grooves in which the height of the right and left walls and the thickness of the bottom portion are different.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) A U-shaped side groove forming apparatus according to the present embodiment has a U-shaped left and right wall 101a, 1 as shown in FIG.
This is an apparatus 1 for molding various U-shaped side grooves 101 having a constant width H of 01b. The U-shaped side groove 101 has different thicknesses of the left and right walls 101a and 101b (FIG. 7).
(D)), various types such as those having different heights of the left and right walls 101a and 101b (FIG. 7 (g)) and those having a retaining portion protruding laterally (FIGS. 7 (f) and (g)). There is something. Further, the gutter lid S used integrally includes a gutter with a curb (FIG. 7A), a gutter having a rainwater discharge hole, and the like.

As shown in FIGS. 1 to 3, the U-shaped side groove form device 1 has an inverted U-shaped inner frame 2, a pair of left and right side frames 3A and 3B, and a pair of small foreframes 4A. , 4B. Each of these frames is made of a steel plate, and the U-shaped side groove 101 is formed in an inverted posture. Molding in an upside-down posture is because the mold release operation can be saved and the concrete can be easily driven. In FIG. 1, one forehead frame 4B is omitted.

The inverted U-shaped inner frame 2 has a structure in which one side 2a is fixed to the base portion 10 while the other side 2b is narrowed inward in consideration of the release of concrete. (See the two-dot chain line in FIG. 1). A pair of forehead frames 4A, 4
B and the pair of left and right frames 3A, 3B are both movable frames. Also, a pair of fore-edge frames 4A and 4B and a pair of left and right side frames 3 are provided.
In A and 3B, reinforcing bars 3a and 4a are attached vertically and horizontally to a thick dam plate. In the apparatus 1 of the present embodiment, a punching die provided above, that is, a punching die (hereinafter, referred to as reference numeral 101e in FIG. 7B) for molding a large number of concave and convex grooves (see reference numeral 101e in FIG. “The die for the bottom of the water channel” is omitted in FIG. 1. As a device provided with the die for cutting the water channel bottom, a pair of left and right side frames 3A,
Some are hinged to one 3B of the 3B and rotate from one side, and others are suspended from above.
The concave and convex grooves 1 are formed at predetermined intervals on the bottom 101c of the U-shaped side groove 101.
There is a case where a die for forming 01e is formed at a predetermined interval, and a case where a flat bottom without a groove is formed in the bottom 101c.

A pair of left and right side frames 3A, 3B and a pair of fore-edge frames 4A, 4B are disposed so as to surround the inner frame 2 on four sides. The pair of side frames 3A and 3B can move in parallel via a carriage traveling toward the inner frame 2, and the parallel movement causes the mold to be opened and clamped. Further, the pair of fore-edge frames 4A, 4B are hinged to the longitudinal side edges of the pair of left and right side frames 3A, 3B, and can be opened and closed in a door shape. Opening and mold clamping are performed.

A side wall attachment 12 is detachably attached to the pair of left and right side frames 3A, 3B. These side wall attachments 12
It is made of a steel plate and has the same size as the pair of left and right side frames 3A and 3B, but has thin portions 12 at both ends in the longitudinal direction.
e is formed. This corresponds to the fact that the side peripheral portion of the U-shaped side groove 101 is formed thick as shown in FIGS. In this specification, the surface of the central portion thicker than the thin portion 12e is referred to as the side wall attachment surfaces 12a and 12b in the drawings.
This will be described below.

The side wall attachment 12 is configured to be separable in the vertical direction. That is, as shown in FIGS. 2 and 3, the side wall attachments 12A and 12B of the present embodiment include one of a pair of left and right side frames 3A and 3B.
A is provided with a first side wall attachment 12A attached to the upper side of A and a replaceable second side wall attachment 12B attached to the lower side. Here, the height of the first side wall attachment 12A is 420 mm and the height of the second side wall attachment 12B is 760 mm, but the height of the first side wall attachment 12A is 0 mm. The design can be changed from 420 mm to 420 mm. That is, a plurality of the first side wall attachments 12A having different heights are prepared in advance, and the various first side wall attachments 12A are exchanged so that the heights of the left and right side walls 101a and 101b are different. The U-shaped side groove 101 is molded.

As described above, the first and second side wall attachments 12A and 12B are separable, and the separable side wall attachments 12A and 12B are separated from each other.
These respective surfaces 12a and 12b are configured to be connectable flush. That is, each side wall attachment 12
A and 12B are attached from the screw holes 3b on the back side of the pair of left and right frames 3A and 3B with bolts B and nuts, and the corresponding screw holes 3c are formed in the attachments 12 for each side wall.
A and 12B are also formed, and the side wall attachments 12A and 12B are also connected to screw holes 3d formed at corresponding positions via screw members.
The screw holes 3b do not penetrate through the surfaces 12a, 12b of the first and second side wall attachments 12A, 12B, and therefore do not affect these surfaces 12a, 12b.

The base 10 is provided with adjusting members 9a and 9b which are in contact with the upper sides of the left and right U-shaped side walls, respectively. As shown in FIG. 4, the adjusting members 9a and 9b include a reference table 9a and an adjustment table 9b disposed below the reference table 9a. This adjusting table 9b is
When the first side wall attachment 12 is removed, the height of the right and left walls 101a and 101b of the U-shaped side groove 101 is adjusted, and the reference base 9a is supported at an upper position. (See FIG. 4B). A plurality of adjusting members 9a and 9b having such a configuration are prepared according to the types of the separable side wall attachments 12A and 12B.

Here, the side wall attachments 12A and 12B of the present embodiment are divided into two parts, but the present invention includes ones that can be separated into two or more divisions. The upper side 12A of the separable side wall attachments 12A and 12B may be a soil retaining frame 15 in which a laterally protruding earth retaining portion is formed in a second embodiment described later. . In these cases, the adjustment members 9a, 9a,
9b is prepared corresponding to these types.

Therefore, when using the U-shaped side groove form device 1 of the present embodiment to manufacture various U-shaped side grooves 101 having different U-shaped left and right wall thicknesses, the above-mentioned side wall is required. The attachments 12 having different thicknesses are manufactured in advance. Then, when these plural kinds are replaced and attached via a connecting tool such as a bolt B and concrete is driven into the frame and cured, the U-shaped left and right walls 101 are formed.
Various U-shaped side grooves 101 having different heights a and 101b can be manufactured. That is, if the side wall attachment 12 is attached to one of the pair of left and right side frames 3A, 3B, as shown in FIGS.
U having different thicknesses of the left and right walls 101a and 101b
A letter-shaped gutter can be manufactured.

Also, U-shaped left and right walls 101a, 101b
When manufacturing various U-shaped side grooves having different lengths, the first and second side wall attachments 12A and 12B are used.
A plurality of types having different lengths in the height direction are prepared, exchanged and mounted, and the height at which the concrete of the U-shaped right and left side walls is driven is set by the adjusting members 9a and 9b. In the present embodiment, the second side wall attachment 12B is designed to have a constant
The side wall attachment 12A has a height different from 0 to 420 mm. Here, "0" means that the first side wall attachment 12A is not used. Therefore, by such replacement, it is possible to manufacture U-shaped side grooves having different lengths on one side of the various left and right walls 101a and 101b and both lengths shown in FIG. 7 (FIG. 7F). g) etc.).

(Second Embodiment) A form device 11 having a U-shaped gutter according to the present embodiment has an earth retaining portion (also referred to as a "heel portion") shown in FIGS. 7 (f) and 7 (g). U-shaped side groove 1
01 is formed in an inverted posture. The earth retaining portion is provided to maintain the stability of construction, and is usually provided on one of the U-shaped left and right walls 101a and 101b.

A pair of left and right side frames 3A, 3B of the present embodiment
As shown in FIGS. 5 and 6, a retaining frame 15 protruding laterally is attached to one side 3A. That is,
In the present embodiment, three-part replaceable attachments, namely, the detachable first and second side wall attachments 12A and 12B and the retaining frame 15 are configured. The retaining frame 15 is formed by forming a space 15c for driving concrete between the side walls 15b, 15b.
A pair of left and right side frames 3A, 3B is detachably attached to the upper side of one side 3A by bolts. Then, the surface 15a of the retaining frame 15 and one surface 12 of the detachable first and second side wall attachments 12A and 12B.
a and 12b are connected so as to be flush. Although the bolting is not specifically illustrated, at least one of the left and right side frames 3A and 3B is provided with a plurality of bolting locations. The surface 15a and one of the side surfaces 12a, 12b of the side wall attachments 12A, 12B are connected so as to be flush, or the above-mentioned screw holes 3b, 3
The connection is made like the connection by c and bolt B.

Therefore, when manufacturing the U-shaped side groove with a retaining wall using the U-shaped lateral groove forming apparatus 11 of the present embodiment, the length of the retaining frame 15 in the vertical direction is reduced. A plurality of types having different shapes are prepared, and these are exchanged and molded. A pair of left and right side frames 3
A and 3B are left attached to one 3A, and the first
As described in the embodiment, the upper side 12A of the separable side wall attachments 12A and 12B may be replaced or removed and molded. In this case, the height is adjusted by the adjusting members 9a and 9b.

After the replacement work is performed as described above, concrete is driven into the frame to cure it.
(F) It is possible to manufacture the U-shaped side groove 101 with the earth stopper shown in (g). By replacing the retaining frame 15 in addition to the shape of the retaining portion 101d, the bottom portion 101d is replaced.
U-shaped side grooves having different thicknesses c can be formed by one mold device.

By the way, the earth retaining portion 101 protruding sideways.
It is very costly to separately manufacture and manufacture a form device in which a dedicated retaining frame is integrated with d. However, according to the present embodiment, the height of the left and right walls is reduced by replacing or removing the upper side 12A of the separable side wall attachments 12A, 12B with the retaining frame 15 attached. A U-shaped side groove with a retaining portion having a different bottom thickness can be manufactured at low cost by using one mold device 11.

As described above, in the present embodiment, the case where there is no die for cutting the bottom of the channel has been described, but the die for cutting the bottom of the channel may be suspended above the form devices 1 and 11 or a pair of left and right. It is optional to use a cutting die for the bottom of the water channel that can be attached to one of the side frames 3A and 3B in a door state, etc., depending on the implementation.

[0030]

According to the U-shaped side groove forming apparatus of the present invention, when a plurality of side wall attachments having different thicknesses are prepared and exchanged and attached to a pair of left and right side frames, the U-shaped left and right side frames are provided. U-shaped side grooves having different wall thicknesses can be formed at low cost by using a single frame device.

Further, when the height of the side wall attachment is configured to be separable and the height of the side wall is adjusted and the adjustment member of the base portion is exchanged in accordance with the height, the height of the U-shaped right and left walls is different. It is possible to mold the character-shaped side grooves with one formwork device.

Further, a retaining frame is attached to one of the pair of left and right side frames, and is connected to the surface of the retaining frame and the surface of the side wall attachment so as to be flush with each other, thereby protruding laterally. It is possible to mold the U-shaped side groove having the earth retaining portion with one mold device.

[0033]

[Brief description of the drawings]

FIG. 1 is a perspective view showing a form device of a U-shaped side groove according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a U-shaped groove forming device according to the first embodiment.

FIG. 3 is a side view showing the left frame and the side wall attachment of the first embodiment.

FIG. 4 is a cross-sectional view illustrating an example in which U-shaped side grooves having different heights of left and right walls are molded using the first embodiment.

FIG. 5 is a sectional view of a U-shaped side groove formwork device according to a second embodiment of the present invention.

FIG. 6 is a perspective view showing a retaining frame according to the second embodiment.

FIG. 7 is a cross-sectional view illustrating types of U-shaped side grooves.

FIG. 8 is a sectional view showing a connected state of U-shaped side grooves.

[Explanation of symbols]

1,11 U-shaped side groove formwork device, 3A, 3B A pair of left and right side frames, 4A, 4B A pair of small frames, 12 Side wall attachments, 12A, 12B (Separable) side wall attachments, 9a, 9b Adjustment Members, 12a, 12
b Attachment surface for side wall, 15 Retaining frame, 1
5a Surface of retaining frame, 101 U-shaped groove, 101
a, 101b Left and right side walls, 101c bottom, S-side groove cover

Claims (3)

[Claims] 1. An inverted U-shaped inner frame, a pair of left and right side frames attached to the left and right of the inner frame, a pair of small frames attached to the front and rear of the inner frame, and a bottom portion of each of these frames. A base unit, wherein the U-shaped left and right walls have a constant width dimension from the bottom to the opening in a U-shaped side groove in an upside down form device, wherein at least one of the pair of left and right side frames has a thickness. The attachments for the side walls having different sizes are detachably attached, and the attachments for the side walls are separable in the vertical direction, and are connected so that the surfaces of the separable side wall attachments are flush with each other. Characteristic U-shaped groove forming device. 2. The U-shape according to claim 1, wherein an adjusting member for adjusting the height of the U-shaped right and left walls in accordance with the height of the right and left walls is exchangeably mounted on the base portion. Formwork device for gutter. 3. A retaining frame on which a laterally projecting retaining portion is molded is detachably attached to one of the pair of left and right side frames, and a surface of the retaining frame and the separable side wall are provided. The U-shaped side groove formwork device according to claim 1, wherein the surface attachment is connected so as to be flush with one surface.