JPH1037116A - Slip preventing groove forming tool and using method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a groove forming tool which can make the execution cost to be at a low price without requiring much labor for execution, and the groove forming method. SOLUTION: This slip preventing groove forming tool 1 is constituted so that slip preventing grooves slanting at a fixed angle and in parallel with each other in a plane view are formed on the concrete road surface of a sloping road, and it is provided with a plurality of die members 2 made of angle steels of triangular section slantingly arranged in parallel with each other, and a frame body 3 joining together channels 31 and L-shaped angle steels 32, 33 by welding. Spacers 41, 42 are welded on the respective crossing parts of the frame body 3 and the die members 2 so as to project downward on both sides of the U-shape steels 2, and the respective die members 2 are welded on the extreme ends of the spacers 41, 42. When the frame body 3 is held and the die members 2 are pressed against the surface of concrete in a damp-dry state, the concrete layer is plastically deformed, and a plurality of slip preventing grooves are formed on the surface at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-slip groove forming device for forming an anti-slip groove on a concrete road surface, and a method of forming an anti-slip groove using the anti-slip groove forming device. .

[0002]

2. Description of the Related Art On a concrete road surface such as a slope, a number of donut-shaped slip prevention grooves are formed on the road surface,
Prevents vehicle slip. However, since a drainage channel for rainwater or the like flowing into the groove is not provided in the slip prevention groove, rainwater or the like accumulates in the groove. In cold regions in winter, rainwater and the like accumulated in the trench freeze in the trench, so that instead of preventing slippage, the vehicle may slip.

[0003] Therefore, a slip prevention groove is formed as a plurality of linear grooves continuous to the end of the road surface, and the rainwater or the like flowing into the groove is improved so as to be drained out of the road surface. Such a slip prevention groove is formed on a road surface by a grooving method. This grooving method is a method in which a completely dried and solidified concrete surface after casting and curing is cut with a grooving cutter having a rotary blade with a diamond edge to sequentially form a number of parallel grooves.

[0004]

However, such a grooving method has a problem in that the solidified concrete road surface is cut to form the slip preventing grooves one by one, so that it takes time and effort for the construction. In addition, since dust is generated along with the cutting, it is necessary to sprinkle the dust, and there is a problem that the construction cost is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an anti-slip groove forming tool which does not require labor for construction and can reduce construction cost.
An object of the present invention is to provide a method for forming an anti-slip groove using the same.

[0006]

Means for Solving the Problems To achieve the above object, an anti-slip groove forming device according to claim 1 is for forming an anti-slip groove on a concrete road surface, and a plurality of anti-slip grooves are formed at a time. In order to form the slip prevention groove on the road surface, before the concrete cast on the road surface is completely dried and solidified, a plurality of stamping members pressed against the cast concrete surface, and A frame that holds the plurality of press members from the opposite side of the pressing surface, and between the frame and each press member, such that the frame and the press members maintain a predetermined distance. And a spacer to be attached to each.

According to the slip preventing groove forming device of the present invention, the plurality of press-type members are held by the frame at predetermined intervals by the spacer. Therefore, before the concrete poured on the road surface is completely dried and solidified, by pressing the anti-slip groove forming tool from the stamping member side on the concrete surface, without leaving traces of the frame body. , A plurality of anti-slip grooves are formed.

According to a second aspect of the present invention, there is provided a slip preventing groove forming device.
2. The slip preventing groove forming tool according to claim 1, wherein a positioning member for performing positioning with another adjacent slip preventing groove forming tool is attached to the frame body. According to the slip preventing groove forming device of the second aspect, it operates in the same manner as the slip preventing groove forming device of the first aspect, and furthermore, another adjacent slip preventing groove is formed by the positioning member attached to the frame. Since the positioning with the forming tool is performed, the slip prevention grooves can be formed on the road surface in a well-balanced manner.

According to a third aspect of the present invention, there is provided a slip preventing groove forming device.
3. The slip preventing groove forming device according to claim 1, wherein the pressing member is formed of a columnar member, and each of the columnar pressing members has a predetermined interval with a longitudinal direction facing the pressing surface. 4. It is held at a predetermined angle and is held by the frame body, and a part of the pressing member is, in plan view,
It protrudes from the frame.

According to a fourth aspect of the present invention, there is provided a method for forming a slip preventing groove, wherein a concrete is cast on a construction surface, and the concrete which is cast in the casting is vacuum-treated in a short time by a vacuum treatment. And pressing the pressing member of the anti-slip groove forming tool according to any one of claims 1 to 3 on the surface of the concrete which has been dried by the vacuum step. And forming an anti-slip groove.

[0011]

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall plan view of the anti-slip groove forming device 1 of the present embodiment, FIG. 2 is a side view of the anti-slip groove forming device 1 viewed from the direction of arrow A in FIG. 1, and FIG. FIG. 3 is a side view of the slip prevention groove forming device 1 viewed from the direction of arrow B in FIG.

The slip preventing groove forming device 1 mainly includes a pressing member 2 and a frame 3 for holding the pressing member 2. As shown in FIG. 2, the pressing members 2 are made of an angle steel material having a triangular cross section, and a large number of the pressing members 2 are arranged in parallel with the vertices of the triangle pointing downward. The number of the press-type members 2 in this embodiment is seven. The upper part of each pressing member 2 is opened to reduce the weight of the slip preventing groove forming device 1 as a whole.

Each of the pressing members 2 is disposed at a certain angle with respect to the frame 3 in a plan view in FIG. Both ends in the forward and reverse directions of the arrow A in FIG. 1 are cut along the edges of the rectangular area S shown by the dashed line in FIG. 1, and the cut portion has a triangular end plate 21 (FIGS. 1 and 2). 3) is attached by welding. That is,
Both ends of the upper open die member 2 are connected to the end plate 21.
Therefore, even if the pressing member 2 is pressed on the concrete surface to form the slip preventing groove, it is possible to prevent concrete from entering the pressing member 2 from both ends thereof. If the concrete enters the pressing member 2 and solidifies, the weight of the anti-slip groove forming tool 1 increases due to the concrete, and workability deteriorates. However, the end plate 21 prevents such a problem. When the slip prevention groove forming tool 1 is used adjacent to another slip prevention groove forming tool 1, the end plate 21 is also used as a member for positioning in the forward and reverse directions of the arrow A in FIG. Anti-slip groove forming device 1 adjacent to a position where end plates 21 overlap each other
Is arranged, it is possible to perform alignment in the forward and reverse directions of the arrow A in FIG.

The frame 3 traverses the pressing member 2 and
A plurality of U-shaped steel members 31 arranged in parallel in the direction of the middle arrow B
And two L-shaped angle steels (positioning members) 32, 33 arranged along both ends of the U-shaped steel 31 in the forward and reverse directions of the arrow B in FIG. There are four U-shaped steel members 31 in this embodiment. The U-shaped steel 31 is made of a U-shaped steel material having a light weight and a large strength.
As shown in FIG. 5 and FIG. 5, the opening direction is arranged toward the pressing member 2 side. Pressing mold member 2
By directing to the (downward) side, it is possible to prevent concrete from entering into the U-shaped steel 31 at the time of forming the slip prevention groove. That is, it is possible to prevent an increase in the weight of the anti-slip groove forming device 1 made of concrete.

On the upper surface of the U-shaped steel 31, L-shaped angle steels 32 and 33 are welded.
The U-shaped steel members 31 are connected to each other by 2, 33. As shown in FIG. 1, the L-shaped angle steels 32 and 33 are attached with their upright walls located outside.
For this reason, the L-shaped angle steels 32 and 33 are used as positioning members in the forward and reverse directions of the arrow B in FIG. 1 when another slip prevention groove forming tool 1 is disposed adjacent to the slip preventing groove forming tool 1. Is also used. That is, by arranging the slip preventing groove forming tool 1 adjacent to the position where the standing walls of the L-shaped angle steels 32 and 33 overlap each other, it is possible to perform the positioning in the forward and reverse directions of the arrow B in FIG.

Spacers 41 and 42 projecting toward the pressing member 2 located below are welded to both sides of the U-shaped steel 31 at each position where the U-shaped steel 31 and the pressing member 2 intersect. ing. As shown in FIG.
Reference numerals 1 and 42 denote pentagonal plate-like bodies whose tips (lower sides) are formed in a triangular shape along the inner wall of the stamping member 2. The triangular tips of the spacers 41 and 42 are welded to the inner wall of the stamp member 2. As a result, the plurality of press-type members 2 inclined at a predetermined angle are integrally held by the frame body 3 at a predetermined interval.

The lengths of the U-shaped steel 31 and the L-shaped angle steels 32 and 33 in this embodiment are each 1 m. Therefore, the frame 3 of the present embodiment is a square having a side of 1 m. The size of the rectangular region S indicated by a chain line in FIG. 1 is larger than the size of the frame 3 by the length of the push-type member 2 in the forward and reverse directions of the arrow B in FIG. By projecting a part of the pressing member 2 from the frame 3 in this manner, the pressing member 2 formed in the same shape and the same length can be pressed by another adjacent anti-slip groove forming tool 1. This can be continued to the mold member 2.

The components of the anti-slip groove forming device 1 of the present embodiment are all made of metal, but are all assembled by welding without using bolts. This is to reduce the weight of the slip preventing groove forming device 1 as a whole. This is because the weight reduction of the slip prevention groove forming tool 1 facilitates the movement and pressing of the slip prevention groove forming tool 1, thereby improving workability. Note that, in order to further reduce the weight, the entire anti-slip groove forming tool 1 may be made of aluminum.

Next, a method for forming an anti-slip groove on a concrete work surface using the anti-slip groove forming device 1 configured as described above will be described. First, concrete is cast on the construction surface. Thereafter, the cast concrete is subjected to a known vacuum treatment to make the concrete dry. In this vacuum treatment, the concrete surface is covered with a vacuum mat and a vacuum pump is used to create a vacuum on the lower surface of the vacuum mat, thereby applying atmospheric pressure to the concrete surface to prevent hydration from occurring in the concrete. This is a process for removing necessary moisture.

A part of the frame 3 is gripped on the surface of the concrete which has been dried by the vacuum treatment, and the slip preventing groove forming device 1 is pressed from the side of the pressing member 2.
Then, as shown in FIG. 6, the concrete layer E is plastically deformed by the pressing member 2, and has a plurality of triangular cross-sections equal to the length of each pressing member 2 and following the cross-sectional shape thereof. Are formed in parallel on the concrete layer E. At this time, the frame 3 is
Since the frame 3 is held above the pressing member 2 at a predetermined distance from the pressing member 2, the frame 3 comes into direct contact with the concrete layer E, and the surface of the concrete becomes uneven. This does not occur.

Incidentally, the slip preventing groove forming tool 1 may be pressed on the concrete surface which has not been subjected to the vacuum treatment after the concrete is cast, to form the slip preventing groove. In this case, compared with the case where the slip prevention groove forming tool 1 is pressed against the concrete surface subjected to the vacuum treatment,
You have to press for a long time.

As described above, the slip preventing groove forming device 1 of the present embodiment is manufactured so that the length and width of the rectangular area S (FIG. 1) are about 1 m. Because the road surface is not flat,
This is because by forming the anti-slip groove forming tool 1 to have an appropriate size of about 1 m square, the anti-slip groove can be surely formed corresponding to the curve of the road surface. Therefore, when the anti-slip groove is formed in a wide area of the road surface, a plurality of types of anti-slip groove formation in which the arrangement of the stamping member 2 differs depending on the length, angle, or interval of the anti-slip groove to be formed. The tool 1 is prepared in advance, and these are arranged adjacently on a concrete surface. FIG.
An example is shown in FIG.

The slip preventing groove forming tool 1A shown in FIG.
Has the same arrangement of the slip preventing groove forming device 1 and the pressing member 2 as described above with reference to FIGS. In FIG. 7, two more types of anti-slip groove forming tools 1B and 1C having different arrangements of the pressing members 2 are prepared.
By arranging these three types of anti-slip groove forming tools 1A to 1C vertically and horizontally adjacent to each other, the pressing members 2 are continuous with each other. That is, as described above, the slip preventing groove forming device 1A
By pressing .about.1C side by side on a concrete surface, a plurality of parallelly disposed anti-slip grooves inclined at a certain angle are formed on the concrete surface of the road. One end of each anti-slip groove extends to a side groove (not shown) formed at both ends of the road surface. Therefore, rainwater or the like flowing into each slip prevention groove is drained to the side groove, and does not stay in the slip prevention groove.

FIG. 7 shows an example in which an anti-slip groove is formed on a road having a width of 3 m. Therefore, three anti-slip groove forming tools 1 each having a length of about 1 m are used side by side in the width direction of the road. I have. The slope of the anti-slip groove is usually preferably 1/10 in terms of appearance.

On the other hand, in the case of a wide road having a width of 6 m as shown in FIG. 8, the center of the raised road surface is used as a boundary.
By inclining in opposite directions, it is necessary to form anti-slip grooves each reaching the side groove. Therefore, in this case, the three types of slip preventing groove forming tools 1 described above are used.
A to 1C form a slip prevention groove in the right half of the road surface, and each of the slip prevention groove forming tools 1A to 1C has three types of anti-slip groove forming tools 1A 'to 1C' in which press-type members are inclinedly arranged in a symmetric shape. Is further prepared, and a slip prevention groove in the left half of the road surface is formed by the slip prevention groove forming tools 1A ′ to 1C ′.

As is apparent from the above description, the use of the anti-slip groove forming tool of the present embodiment makes it possible to form the anti-slip grooves on the road surface at a low construction cost without any trouble in construction. Can be. In addition, since the anti-slip groove is formed by pressing the anti-slip groove forming tool on a freshly dried concrete surface, even on a sloping road surface, the anti-slip groove on the upper and lower sides of the sloping surface is prevented. The grooves can be formed evenly. Further, since the slip preventing groove forming device is lightened, it can be easily moved and pressed, and the workability can be improved.

As described above, the present invention has been described based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention. Can easily be inferred.

For example, a triangular columnar member is used as the pressing member 2 in this embodiment, but a donut-shaped ring member may be used instead. Since the slip prevention groove formed by such a ring-shaped member has a donut shape, rainwater or the like accumulated in the groove is not drained to the outside, but accumulates in the groove. However, in a warm area where there is no possibility of freezing, by holding a plurality of such ring-shaped members in the frame 3 in a well-balanced manner, a plurality of slip prevention grooves can be formed at a time with a good balance. Therefore, the workability can be remarkably improved as compared with the case where the ring-shaped members are embedded one by one on a freshly dried concrete surface.

Further, the slip preventing groove forming device 1 of the present embodiment
Can be formed not only on an inclined surface but also on a flat surface. Furthermore, the pressing members 2 held by the frame 3 need not necessarily be arranged in parallel. For example, when a slip prevention groove is formed in a curved portion of a road, the pressing member 2 is disposed in the frame 3 in a fan shape inclined at a predetermined angle with respect to each other.

The anti-slip groove forming device 1 of this embodiment can also be used for forming an anti-slip groove on a concrete floor of a pig barn or barn to prevent livestock from slipping. In this case, the pressing members held by the frame 3 are formed in a lattice shape of about 10 cm square. Then, the anti-slip groove forming tool provided with such a lattice-shaped pressing member is pressed onto a freshly-dried concrete surface cast on the floor of a pig or barn, whereby a 10 cm square lattice is formed on the floor. The shape of the anti-slip groove is formed. The shape of the pressing member 2 is changed in accordance with the place where the anti-slip groove is formed and the application.

[0031]

According to the anti-slip groove forming tool according to the first aspect, a plurality of anti-slip grooves are formed at once by pressing the forming tool onto the concrete surface before being completely dried and solidified. Can be. Therefore, there is an effect that a plurality of anti-slip grooves can be constructed on the concrete construction surface at low cost without any trouble. In addition, since each of the pressing members is held in the frame at predetermined intervals by the spacers, the effect that the anti-slip groove can be formed without leaving a trace of the frame on the construction surface. is there.

According to the slip preventing groove forming device of the second aspect, in addition to the effect of the slip preventing groove forming device of the first aspect, the positioning member can be used to perform positioning with another adjacent slip preventing groove forming device. Since it can be performed, there is an effect that the slip prevention groove can be formed on the road surface in a well-balanced manner.

According to the anti-slip groove forming device of the third aspect, in addition to the effect of the anti-slip groove forming device of the first or second aspect, a part of the push-type member constituted by the columnar member is provided. Since the projection is projected from the frame in plan view, the slip prevention groove formed by the one slip prevention groove forming tool even when the pressing member is held at a predetermined angle with respect to the frame. Can be made continuous with the slip prevention groove formed by the other slip prevention groove forming device.

According to the slip preventing groove forming method of the fourth aspect, a plurality of slip preventing grooves are easily formed on the construction surface, and
There is an effect that it can be formed at low cost.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a slip prevention groove forming device according to an embodiment of the present invention.

FIG. 2 is a side view of the slip prevention groove forming device as viewed from the direction of arrow A in FIG. 1;

FIG. 3 is a side view of the slip prevention groove forming device as viewed from the direction of arrow B in FIG. 1;

FIG. 4 is an enlarged side view of a portion C in FIG. 2;

FIG. 5 is an enlarged side view of a portion D in FIG. 3;

FIG. 6 is a side sectional view of a concrete road surface having a slip prevention groove formed on a surface thereof.

FIG. 7 is a view showing a state in which three types of anti-slip groove forming tools are arranged and a pressing member is made continuous.

FIG. 8 is a view showing a state in which six types of slip prevention groove forming tools are arranged and a slip prevention groove is formed on a road having a width of 6 m.

[Explanation of symbols]

1, 1A, 1B, 1C, 1A ', 1B', 1C 'Anti-slip groove forming tool 2 Push-type member 21 End plate 3 Frame 31 U-shaped steel 32, 33 L-shaped angle steel (positioning member) 41, 42 Spacer E Concrete layer G Slip prevention groove S Rectangular area

Claims (4)

[Claims] An anti-slip groove forming tool for forming an anti-slip groove on a concrete road surface, wherein a plurality of anti-slip grooves are formed on the road surface at one time.
Before the concrete poured on the road surface is completely dried and solidified, a plurality of pressing members pressed against the poured concrete surface; and the plurality of pressing members from the opposite side of the pressing surface of the pressing member. A frame that holds the members, and spacers that are respectively attached between the frame and each of the pressing members so that the frame and the pressing members maintain a predetermined distance. An anti-slip groove forming tool characterized by the above-mentioned. 2. The anti-slip groove forming device according to claim 1, wherein a positioning member for performing positioning with another adjacent anti-slip groove forming tool is attached to the frame body. Utensils. 3. The pressing member is composed of a columnar member, and each of the columnar pressing members inclines at a predetermined angle with a predetermined interval between the frame and the longitudinal direction toward the pressing surface. The anti-slip groove forming device according to claim 1, wherein a part of the pressing member is protruded from the frame in a plan view, being held by a body. 4. A casting step of placing concrete on a construction surface, a vacuum step of bringing the concrete placed in the placing step into a dry state in a short time by vacuum treatment, And forming a plurality of anti-slip grooves at once by pressing the stamping member of the anti-slip groove forming tool according to any one of claims 1 to 3 on the surface of the concrete. A method for forming a slip prevention groove, comprising: