JPH10266164A - Connection method of square block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect four square blocks, by laying square blocks projecting connection rings from the inclined side faces at the four corners on a slope and screwing a nut on a screw bolt to fasten it after the rising parts of a cross- shaped metal tool have been protruded above the connection rings. SOLUTION: A screw shaft 10 of a cross-shaped metal tool A is held and the cross-shaped metal tool is inserted in the space 6 between connection rings 3 of the space 5 and the rising parts 9 is put under the connection rings 3 and then rotated to the right side or the left side by 45 degrees to position the four rising parts 9 in the underside of respective connection rings 3. And then the screw shaft 10 is raised to protrude the rising parts above the connection rings 3. In this state, the central through hole of the connection board is fitted to the screw shaft 12 and through holes at the ends are fitted to the rising parts 9 and a nut is screwed on the screw shaft 12 and fastened together. In this way, the cross-shaped metal tool 7 and the connection board are integrally unified and the four connection rings 3 are securely connected. Even when the connection rings are not positioned on a plane, the rising parts can be easily inserted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting a large number of rectangular blocks laid on a slope of a river or a road. More specifically, the present invention relates to a method of connecting a ring protruding from an inclined side surface at a corner of a rectangular block. The present invention relates to a method of connecting with one connecting fitting.

[0002]

2. Description of the Related Art As a method of connecting a rectangular block, which connects a connecting ring projecting from an inclined side surface at a corner of a rectangular block with a single connecting metal, a U-shaped connecting metal is parallel to the middle when viewed from the side. Into a bent part,
Japanese Patent Publication No. 7-86215 discloses a method of connecting a block in which two nuts are fastened by inserting two through holes of a plate into the free ends of the connecting metal fittings by inserting the connecting rings into the connecting rings of the two slope blocks. I have.

However, in the connection method using the U-shaped connection fitting, since the space defined by the inclined side surfaces of the block is narrow, the work of tightening the two nuts in this space is troublesome, and the method is difficult. This hindered the efficiency of surface construction.

[0004] When the slope is uneven or the blocks are laid out from side to side or up and down, the connecting rings protruding into the space become uneven, so that it is difficult to insert the connecting metal fittings into the connecting ring. There was a problem that becomes.

[0005]

SUMMARY OF THE INVENTION The present invention provides a method for connecting rectangular blocks, which can easily connect four connecting rings in a narrow space formed by the inclined side surfaces of four rectangular blocks. What you want to do.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a method for connecting rectangular blocks according to the present invention is to lay a rectangular block having connecting rings protruding from inclined side surfaces at four corners on a slope to form a sloped side surface. A space is formed, and in the gap between the connecting rings protruding into the space, a screw shaft is protruded upward at the intersection, and a cross-shaped bracket having a rising portion at each end is inserted. Rotate the bracket around the screw shaft to position each end below the connecting ring, raise the cross bracket to project the rising part on the connecting ring, and then drill it in the center of the connecting plate. Inserting the through-hole into the screw shaft and the through-hole formed in the outer part into the rising portion, screwing a nut to the upper end of the screw shaft, and tightening the nut to connect the four rectangular blocks. It is.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The method for connecting rectangular blocks according to the present invention is not limited to a plate-shaped concrete block, a rectangular concrete frame, or a concrete plate in which a plurality of concrete stones are integrally fixed on the upper surface of a concrete plate. Applies to all square blocks.

[0008] The connecting fitting used in the connecting method according to the present invention is composed of a cross-shaped fitting and a connecting plate. As the cross bracket, one obtained by welding two iron rods or one obtained by welding two strip-shaped metal plates is used.

As the connecting plate, two band-shaped metal plates are used, or a metal plate in which the intersection of the two metal plates is welded in advance is used. Shaped steel such as angles and channels may be used for the two metal plates in order to increase the strength. Alternatively, a single metal plate punched into an appropriate shape may be used.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view showing a connecting portion of a rectangular block connected by a connecting method of a rectangular block according to the present invention;
FIG. 2 is an enlarged plan view of a connecting portion, and FIG.
FIG. 4 is a cross-sectional view of the X-ray, FIG. 4 is a perspective view of a cross-shaped bracket in the same connection method, and FIG. 5 is a perspective view of a connection plate in the same connection method.

In the drawings, reference numeral 1 denotes a plate-shaped concrete block having inclined side surfaces 2 provided at four corners, and a connecting ring 3 protruding from each inclined side surface 2. The inner end of the connecting ring 3 is fixed to a reinforcing bar 4 embedded in the concrete block 1.

Reference numeral 5 denotes a rectangular space formed by sloping side surfaces 2 by laying a plate-shaped concrete block 1 on a slope, and the connecting ring 3 is separated from the space 5 by a predetermined gap 6. Protruding.

Reference numeral A denotes a connection fitting, which is formed by a cross-shaped fitting 7 and a connection plate 8. Cross bracket 7 above
Is formed by intersecting the centers of two iron bars 10 having rising portions 9 at both ends at right angles as shown in FIG. 4 and welding the intersection, and furthermore, the intersection has an intermediate portion. The lower end of the screw shaft 12 having the step portion 11 is welded.

As shown in FIG. 5, the connecting plate 8 is formed by intersecting the centers of two strip-shaped iron plates 13 at a right angle and welding the intersection thereof. Drill a through hole 14 large enough to be inserted into the rising part 9,
A through hole 1 large enough to be inserted into the screw shaft 12 at the center intersection
5 are drilled.

Since the embodiment of the present invention is configured as described above, it has the screw shaft 10 of the cross-shaped bracket A, and as shown by a chain line in FIG. After inserting the cross metal fitting into the gap 6 formed between them and sinking it until the rising portion 9 reaches below the connecting ring 3, it is rotated left or right by 45 ° to rotate the four rising portions 9. Are positioned below the connecting rings 3, and the screw shafts 12 are lifted to cause the rising portions 9 to protrude above the connecting rings 3. In this state, the through hole 15 at the center of the connecting plate 8 is
When the through hole 14 at the end is fitted into the rising portion 9, the nut 16 is screwed into the screw shaft 12 and tightened, the cross-piece 7 and the connecting plate 8 are integrally tightened, and the four connecting rings 3 are formed. Are reliably connected.

[0016]

The method for connecting rectangular blocks according to the present invention is implemented in the form described above, and has the following effects.

In the narrow space formed by the inclined side surfaces of the four rectangular blocks, the rising portions are inserted into the four connecting rings at one time, and the laying of the rectangular blocks is inaccurate, and the connecting rings are inaccurate. Even if they are not arranged neatly on one plane, it is easy to insert the rising part, and the connection plate 8 is bridged to the rising part by tightening one nut. Laying square blocks can be connected very efficiently.

As shown in the above-described embodiment, when a step is formed on the screw shaft of the cross-shaped bracket in the connecting bracket, the nut can be securely tightened and does not loosen. Robust connection is possible.

[Brief description of the drawings]

FIG. 1 is a plan view showing a part of a rectangular block connected by a connecting method according to the present invention.

FIG. 2 is an enlarged plan view of a connecting portion according to the first embodiment.

FIG. 3 is a sectional view taken along line XX in FIG. 2;

FIG. 4 is a perspective view of a cross bracket in the connection method according to the first embodiment;

FIG. 5 is a perspective view of a connection plate in the same connection method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete block 2 Inclined side 3 Connecting ring 4 Reinforcing bar 5 Space 6 Gap A Connecting metal fitting 7 Cross fitting 8 Connecting plate 9 Rising part 10 Iron rod 11 Stepped part 12 Screw shaft 13 Iron plate 14 Through hole 15 Through hole 16 Nut

Claims (1)

[Claims] 1. A square block having connecting rings projecting from four inclined side surfaces is laid on a slope to form a space by the inclined side surfaces, and a gap between the connecting rings protruding into the space is provided with an intersection. Insert a cross-shaped bracket with a screw shaft projecting upward and a rising portion provided at each end, and rotate this cross-shaped bracket around the screw shaft to position each end below the connecting ring. At the same time, after raising the cross bracket and projecting the rising portion onto the connecting ring, the through hole formed in the center of the connecting plate is inserted into the screw shaft, and the through hole formed in the outer portion is inserted into the rising portion,
A nut is screwed into the upper end of the screw shaft, and tightened.
A method for connecting rectangular blocks, comprising connecting rectangular blocks.