JPH11200470A - Lid frame for gutter block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the assembly of a form used in the manufacture of a concrete gutter block with which a metallic lid frame is integrated. SOLUTION: A lid frame 1 includes right and left corner angles 2, 2 integrated with outside angles where the top wall 18 and side walls 19 of a gutter block 13 cross and right and left gutter lid receiving parts 3, 3 integrally formed at the longitudinal mid part of each corner angle 2 to be integrated with the inside of an opening 17 in the top wall 18. The lid frame 1 also includes front and rear partition plates 4, 4 welded to both the front and rear ends of the right and left gutter lid receiving parts 3, 3 in such a way as to close the end faces of openings at both the front and rear ends of a gutter lid storage space part S formed between the right and left gutter lid receiving parts 3, 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal lid receiving frame integrally embedded in a concrete groove block.

[0002]

2. Description of the Related Art A metal lid receiving frame, which is used as a receiving material when placing a groove lid (grating) on an opening of a ceiling wall of a concrete groove block, is integrally embedded at the same time as the concrete molding of the groove block. For example, Japanese Patent Application Laid-Open No. 7-292756 (Patent No. 25404)
No. 49). As shown in FIG. 9, this is formed in a gate-shaped cross section having a top wall 18 having an opening 17 and left and right side walls 19, 19 provided downward from both left and right ends of the top wall 18. Concrete groove block 1
3, while the lid receiving frame 1 includes a top wall 18 and a side wall 19.
The left and right corner angles 2 and 2 are integrated with the protruding corner where the corners intersect, and the left and right L-shaped groove covers formed at the longitudinally intermediate portions of the respective corner angles 2 and integrated into the opening 17. It comprises a receiving part 3, 3 and a connecting member 6 which connects the left and right corner angles 2, 2 and is embedded in the ceiling wall 18.

In order to form such a groove block 13 into concrete, as shown in FIG. 10, an inverted U-shaped inner mold 14 is formed.
And a mold 16 comprising an outer mold 15 and a connecting member 6
The left and right corner angles 2 and 2 connected by the above are set upside down in the bottom of the outer mold 15 and concrete is poured between the inner mold 14 and the outer mold 15.

[0004]

However, when the groove block 13 is formed into concrete as described above, concrete is placed in the groove cover accommodating space S formed between the left and right groove cover receiving portions 3. Form 16 so that it does not flow
Need to be assembled. For that purpose, partition plates 21 for closing the opening end faces at the front and rear ends (portions indicated by imaginary oblique lines F in FIG. 9) of the groove lid housing space S are prepared,
This must be assembled into the mold 16 so as to be tightly joined to the front and rear ends of the groove lid receiving portions 3 and 3 without any gap. However, such an operation of assembling the partition plate 21 requires troublesome work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a groove block lid capable of simplifying assembly of a mold by eliminating the work of incorporating a partition plate into the mold. It is intended to provide a receiving slot.

[0006]

SUMMARY OF THE INVENTION The present invention is a metal lid receiving frame integrated with a concrete groove block, wherein the groove block has a top wall having an opening and right and left sides of the top wall. It is formed in a cross-section gate shape having left and right side walls continuously provided from the end downward, and the lid receiving frame has left and right corner angles integrated with a protruding corner where the top wall and the side wall intersect, and each corner angle The left and right groove lid receiving parts are formed integrally at the middle part in the front and rear longitudinal direction and integrated into the opening, and are formed between the left and right groove lid receiving parts at both ends in the front and rear direction of the left and right groove lid receiving parts. The front and rear partition plates are welded and fixed so as to close the opening end surfaces at both front and rear ends of the groove cover accommodating space portion. In the groove block, a fillet portion having a triangular cross section is integrally formed in a front-rear direction at an entry corner where a top wall and a side wall intersect. Formed with pieces.

[0007]

The front and rear partition plates for closing the opening end surfaces at the front and rear ends of the groove cover receiving space formed between the groove cover receiving portions are respectively welded and fixed to the front and rear ends of the left and right groove cover receiving portions. This makes it easy to assemble the concrete formwork. The front and rear partition plates prevent the concrete from flowing into the groove cover accommodating space between the left and right groove cover receiving portions at the time of placing the concrete. Since the parallelism between the groove lid receiving portions is maintained by the front and rear partition plates, the parallelism between the groove lid receiving portions does not go wrong when assembling the formwork or placing concrete. After laying the groove block in the side gutter, etc., when dropping the groove cover into the groove cover receiving part and placing it, the partition cover prevents the groove cover from touching the concrete forming the top wall, so the groove cover is used for rust prevention. Even if zinc plating is applied, this plating does not peel off with concrete.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, a metal lid receiving frame 1 of this embodiment is welded and fixed to left and right corner angles 2 and 2 which are parallel to each other, and an intermediate portion of each corner angle 2 in the longitudinal direction. Left and right groove cover receiving portions 3, 3 having an L-shaped cross section, and groove cover receiving spaces S formed between the left and right groove cover receiving portions 3, 3 at front and rear ends of the left and right groove cover receiving portions 3, 3 respectively. And front and rear partition plates 4 and 4 which are welded and fixed so as to close the opening end surfaces at both front and rear ends. As shown in FIG. 3, triangular pieces 5 and 5 are provided at the right and left ends of a lower edge 4a facing downward from between the groove cover receiving portions 3 and 3 of each partition plate 4. The portions of the left and right corner angles 2 and 2 close to one end in the front-rear direction and the other portions close to the other end are connected by a connecting member 6 made of a round bar steel or the like. As shown in FIG. 3, a reinforcing angle 7 is fixed by welding to the back surface of the joint between the corner angle 2 and the groove lid receiving portion 3. The groove cover receiving portion 3 is provided with a mounting hole 9 used when mounting the groove cover 8 shown in FIG. 7. 9 is welded and fixed. As shown in FIG. 3 and FIG. 4, anchor members 11 are attached to several places on the back surface of each corner angle 2, and anchor members 12 are also attached to several places on the back surface of the groove lid receiving part 3.

In order to concretely form the groove block 13 using the lid receiving frame 1 assembled as described above, as shown in FIGS. 5 and 6, the lid receiving frame 1 is turned upside down to form a U-shaped inner die 14. And a mold 16 comprising an outer mold 15 and then concrete is poured into the mold 16. When the concrete is cast, the partition plates 4, 4 are welded and fixed to the front and rear ends of the left and right groove lid receiving portions 3, 3, so that the concrete is filled with the groove lid receiving space between the left and right groove lid receiving portions 3, 3. It does not flow into the section S. When the mold 16 is removed after the concrete is solidified, the groove block 13 in which the lid receiving frame 1 is integrally embedded can be obtained.

As shown in FIGS. 1 and 5, the groove block 13 manufactured as described above has a top wall 18 having an opening 17.
And a left and right side wall 19, 19 connected downward from both left and right ends of the top wall 18, and a triangular cross section is formed at the corner where the top wall 18 and the side wall 19 meet. The fillet portion 20 is formed integrally in the front-rear direction. On the other hand, the left and right corner angles 2 and 2 of the lid receiving frame 1 are the top wall 1
The left and right groove lid receiving parts 3 and 3 are joined and integrated into the opening 17 at the corners where the side walls 19 and 8 intersect. The partition plates 4 and 4 are joined and integrated with the opening end surface of the ceiling wall 18 facing the groove lid accommodating space S between the groove lid receiving portions 3 and 3. The connecting member 6 is embedded in the ceiling wall 18.

Since the groove block 13 is reinforced by forming a fillet 20 having a triangular cross section at the corner where the ceiling wall 18 and the side wall 19 intersect, the corner where the ceiling wall 18 and the side wall 19 intersect at a right angle. The thickness of the top wall 18 can be reduced as compared with the groove block 13 to be formed, and the amount of concrete used can be reduced accordingly. Also in the groove block 13 having the corners with the corners having such a cross-sectional shape, the partition plate 4 including the triangular pieces 5 is fixed to the end of the groove cover receiving portion 3 by welding, so that the concrete is covered with the groove cover when the concrete is poured. The groove block 13 can be formed so as not to flow into the groove cover accommodating space S between the receiving portions 3.

When the corner block where the top wall 18 and the side wall 19 intersect is formed with a radius R as shown in FIG. 9, the triangular piece 5 is changed to a shape corresponding to the radius R. When the lower surface of the ceiling wall 18 is formed in a mountain shape as shown in FIG. 8, the triangular piece 5 is changed to a shape 5a corresponding to the mountain shape. Of course, the ceiling 18
When the corners at which the corners intersect with the side walls 19 are formed at right angles, it is not necessary to provide the partition plate 4 with the triangular pieces 5. In the above embodiment, the groove cover receiving portion 3 is formed separately from the corner angle 2 and is fixed to the corner angle 2 by welding. However, the groove cover receiving portion 3 is integrally bent with the corner angle 2. It can also be formed.

[0013]

According to the groove block cover receiving frame of the present invention,
Since the partition plates are welded and fixed to both front and rear ends of the left and right groove lid receiving portions, the work of assembling the partition plates into the mold can be omitted, and the assembling of the mold can be performed simply and efficiently. By the front and rear partition plates, it is possible to prevent the parallelism between the groove cover receiving portions from being out of order at the time of assembling the formwork or placing the concrete, and the groove cover can be stably mounted thereon. When the gutter is dropped into the gutter receiver and placed on the gutter, the partition plate prevents the gutter from touching the concrete that forms the ceiling wall. There is no such thing as being peeled off.

[Brief description of the drawings]

FIG. 1 is a perspective view of a groove block lid receiving frame showing one embodiment of the present invention.

FIG. 2 is a plan view of a groove block lid receiving frame of FIG. 1;

FIG. 3 is an enlarged sectional view taken along line AA in FIG. 2;

FIG. 4 is an enlarged sectional view taken along line BB in FIG. 2;

FIG. 5 is a sectional view of a top wall and a side wall showing a concrete molding state of the groove block.

FIG. 6 is a sectional view of a groove cover accommodating space portion and a side wall showing a concrete state of the groove block.

FIG. 7 is a sectional view of a groove block in which a lid receiving frame is integrated.

FIG. 8 is a sectional view showing another embodiment corresponding to FIG. 6;

FIG. 9 is a perspective view of a conventional groove block lid receiving frame.

FIG. 10 is a sectional view of a groove cover accommodating space and a side wall showing a concrete molding state of the groove block of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lid receiving frame 2 Corner angle 3 Groove lid receiving part 4 Partition plate 5 Triangular piece 13 Groove block 17 Opening 18 Top wall 19 Side wall 20 Fillet

Claims (2)

[Claims] 1. A metal lid receiving frame integrated with a concrete groove block, wherein the groove block is connected to a top wall having an opening and connected downward from both left and right ends of the top wall. The lid receiving frame is formed in a cross-section gate shape having left and right side walls, and the left and right corner angles integrated into the protruding corner where the top wall and the side wall intersect, and a longitudinally intermediate portion of each corner angle. Left and right groove lid receiving portions formed integrally and integrated into the opening, and groove lid accommodating space portions formed between the left and right groove lid receiving portions at both longitudinal ends of the left and right groove lid receiving portions. A lid receiving frame for a groove block, comprising front and rear partition plates welded and fixed so as to close open end surfaces at both front and rear ends. 2. A groove block, wherein a fillet portion having a triangular cross section is integrally formed in the front-rear direction at an entry corner where a top wall and a side wall intersect, and a partition plate corresponds to the triangular cross section of the fillet portion. The lid block for a groove block according to claim 1, wherein the lid receiving frame is formed in a shape provided with a triangular piece.