JP2005146685A - Subgrade material block - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a block for a sidewalk capable of preventing a slippery paving material having a smooth surface from slipping and improving water permeation performance greatly. <P>SOLUTION: This subgrade material block is constituted in such a way that recessed and projecting fitting parts 3, 4 are constituted at both ends of the block having the smooth surface and longitudinal channels 5, the fitting parts are shifted by half when performing construction to make the whole sidewalk surface smooth and provide non-slip effect by making both edges 10 of the longitudinal channel have an acute angle, depth of the pot-shaped channel 5 in an end part is reduced and depth of the pot-shaped channel 5 in a central part is increased to achieve balance of strength as a subgrade material, a butting part of the block on sides where there are no recessed and projecting parts is made large, and a molded product having a space for regulating joint width is inserted to reduce clogging and improve water permeation performance greatly. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention significantly improves drainage performance by constructing a non-slip structure for a roadbed material block used for a general sidewalk, and by forming joints between the bowl-shaped groove and the block on the surface layer. It is related to such functions.

  In places where people pass, such as sidewalks, the surface should be smooth and shiny, for example polished stones or terrazzo tiles, smooth tiles, and smooth and polished concrete. However, when it was used outdoors, it could not be used because it slipped. In particular, slip during rain was a big problem and was rarely used.

  Therefore, conventionally, the surface of the stone is roughened by shot blasting, the surface of the tile or concrete is roughened by various methods, or a streak is used.

  In addition, the drainage performance is greatly improved during rainfall by forming joints with molded products such as plastics, which have edged bowl-shaped grooves that exhibit anti-slip functions and the width of joints on the side walls. I can do it.

  A concrete flat plate, which is a typical product of a roadbed material block, has a 300 mm square and a smooth part, and the joint area per area is not so large.

Interlocking blocks, etc. have smooth surfaces, but the joint width between individual blocks is not so large, and the joint sand also becomes finer over time and loses its water permeability function. A thick water film was formed, and it was a puddle.

[Patent Document 1], pebbles are solidified with cement, resin, etc. while creating a gap as in the water-permeable flat plate described in Patent Document 1, and half the diameter of the pebbles is scraped from the upper surface to create a reverse taper edge and slip There is a patent aimed at the stopping effect, but the cost was greatly increased by sharpening and polishing.

As in the paving block and its construction method described in [Patent Document 2], protrusions and fitting grooves are formed on both side surfaces of the block, and it is adjacent by shifting the half block during construction. The blocks to be integrated with each other can form a smooth pavement surface as a whole.
Publicity No. 4-37921 International Publication Number WO00 / 61868

  The problem to be solved is that streets, sidewalks of condominiums, and walking parts around houses are the places where you want to take into consideration the most scenery, but when it rains, the road surface gets wet and pedestrians may slip The road surface was smooth, glossy and hard to get dirty, and it was not possible to use a clean roadbed material due to the smooth landscape.

  Therefore, the present situation is generally smooth, such as roughened surface or streaked one, but it is glossy and rugged, it is easy to get dirty, and the appearance is not good anymore.

  As a method of increasing the water permeability, by arranging the edge-shaped groove-shaped grooves 5 over the entire surface of the block, and taking a large joint at the butt portion between the blocks, and inserting a molded product such as a water-permeable plastic Achieved the purpose.

  The fact that the depth of the ridge-shaped groove with an edge is made shallower at the end of the block is the most force applied to the end of the block, which makes it easy to chip, which was solved by changing the depth of the groove .

The present invention has focused on forming a special saddle-shaped groove in a roadbed material block having a smooth surface at an appropriate interval on the surface and having both edge portions in contact with the surface being inversely tapered.

According to the second aspect of the present invention, the bowl-shaped grooves are arranged from 3 to 20 per block, and the edges are weak and easily chipped. Therefore, the bowl-shaped grooves are shallow toward the ends of both sides.

The number of grooves is about 3 in the case of a small 100 mm square block, and the maximum length is about 20 places in the case of a large block with a groove length of 200 mm and the opposite side of about 500 mm. It becomes.

  The size of the groove edge 10 in contact with the surface is 2 to 10 mm, and the depth is 3 to 20 mm. In addition to being a container for storing water when heavy rain falls instantaneously, such as in the evening, it also serves as a drainage ditch.

  Furthermore, the floor is wet by making the corner of the groove in contact with the surface an acute edge 6, and even if you walk on it, the material on the back of the shoe enters the groove 5 in FIG. Since the slippage is suppressed at the edge 6, almost no slip occurs.

  The reason why the size of the groove is 2 mm is that if it is less than this, the non-slip effect is difficult to be produced, and if it is 10 mm or more, the heel of the high heel may be fixed.

  If the depth of the bowl-shaped groove 5 is set to 3 mm or more, it will not be very effective with dimensions smaller than this in order to greatly improve the water permeability, and if it is less than 20 mm, it will be more than this. This is because there is a problem with the strength of the block.

  On one side wall serving as an adjacent surface of the roadbed material block, a protrusion for fitting the adjacent roadbed material block main bodies to each other is formed, and on the other side wall, an adjacent roadbed material block. A fitting groove for fitting with the above-mentioned protrusion of the main body is formed.

  The ridges 3 and the fitting grooves 4 for fitting the adjacent roadbed material block main bodies 1 with each other are constructed by smoothing the roadbed material block main body 1 in half so that the entire surface is integrated. It becomes.

  This makes it possible to maintain a smooth surface without falling and sinking even if a heavy load is applied to the roadbed material block when the ground is loose during rainfall.

A molded product 9 such as plastic with good drainage having a thickness of 5 mm to 20 mm that defines the joint width is disposed at the time of construction on the side wall where the protrusions or fitting grooves of the road floor material block are not formed. As a result, it becomes an instant drainage ditch when heavy rain falls, making it difficult to collect water on the sidewalk.
In addition, the protrusion 7 of FIG. 2 may be configured when a significant water permeability is not required.

  If it is smaller than 5 mm, the water permeability is lowered, and if it is larger than 20 mm, the heel of the high heel enters, but it is not preferable because it is also caught by shoes. In the case of such a large joint, it is preferable to arrange it in the side belt instead of the center of the sidewalk.

  In the present invention, since rainwater is spilled in a short time on the roadbed under the roadbed material block, non-woven fabric etc. is laid on the roadbed constructed by crushed stone, sand, etc. If the water is absorbed in a planar shape, a water channel that damages the roadbed cannot be formed.

  The production of such roadbed material blocks is not made by pressing the sidewalk surface up or down, such as concrete flat plates or interlocking blocks. In this way, the upper and lower surfaces of the sidewalk surface are molded so that they lie sideways. Therefore, since the special groove-shaped groove 5 with an edge is pulled out vertically, it can be easily constructed and is convenient.

  Moreover, when producing as a brick block, it can manufacture easily by extruding porcelain with a normal extruder, drying, and baking.

  Since the protrusion 3 and the fitting groove 4 for fitting adjacent roadbed material block main bodies to each other are constructed by shifting the roadbed material block main body in half, the entire surface becomes a smooth surface. Even if the sidewalk surface is smooth and the roadbed is loosened due to frequent rain, the sidewalk surface does not become rattled, making it an extremely easy-to-walk sidewalk.

  The reason why the width of the smooth surface is 5 mm to 50 mm is that if it is 5 mm or less, the smooth surface can not be good, and if it is 50 mm or more, there is a risk of slipping.

  Further, the edge 6 of the groove 5 with a special saddle-shaped edge has a very small amount of material on the back of the shoe entering the groove 5 in FIG. If it is made of ceramics such as a brick block, the edge 6 is sharp and more effective.

  Edges can also be raised in the case of concrete, but it is inferior in durability. In this case, the smooth surface may be coated with ceramic or resin.

  In this way, the durability, which is a drawback of concrete, can be covered, and the product has less discoloration.

  In a roadbed material block product with a smooth surface, the surface dimensions are 150 mm square and the thickness is 80 mm. Although it may be 200 mm square, the length of the streaks on the surface becomes longer and there is a possibility of skidding, so about 150 mm is a roll.

Also, the thickness may be 60 mm, but about 80 mm is preferable considering long-term durability.

  Further, a smooth and brilliant surface is formed over the entire block surface 2, and a bowl-shaped groove 5 is formed at an appropriate interval of 15 to 20 mm.

  The width of the edge 10 of the groove 5 is 5 mm, the edge of the edge of the groove 5 has an acute angle, the number of grooves 5 is 6, and the depth of the edge of the block is 5 mm. The approximate center is 15 mm.

  And when it is made of concrete, the thickness part can be solid as it is, but when it is made of pottery using ceramic clay, a large hole 8 mm of 30 mm is formed at the center of the wall thickness. Opening three of them is convenient because it can be molded, dried and fired quickly.

  At both ends of the block groove in the length direction, there are irregularities that fit well together. As for the dimensions, a semicircle of 15 mm has a good balance as a whole.

  When constructing this 150 mm square block on a pavement, the entire pavement surface becomes substantially flat by fitting it while shifting it by 75 mm, which is almost half of one side.

  Extrude a polyolefin filament with a diameter of about 1 mm with an extruder as shown in 9 in FIG. 4 in the gap between the sides with no irregularities on the left and right sides, and heat-bond the parts where the filaments are in contact with each other with a large gap. The molded product is made to a thickness of about 10 mm.

  This molded product is inserted between the blocks during construction. In this way, even if sand enters the gap or leaves fall, it becomes a gap that does not deteriorate the water permeability.

In the drawings, FIG. 1 is a perspective view of a roadbed material block product of the present invention.
Extruding wet porcelain with an extruder, in this case, the concaves and convexes 3 and 4 to be fitted at the time of construction are formed on the left and right sides, and six bowl-shaped grooves 5 are formed on the surface 2 thereof.

  The width of each smooth surface of the six stripes on the surface 2 is 15 to 20 mm, the width of the fore edge of the groove 5 is 5 mm, and the end is an edge 6. The depth is 5 mm and 10 mm deep from both ends, and the two in the middle have a bowl-shaped groove 5 which is 15 mm.

  The 80 mm thick cross section is made up of three 30 mm round holes in a well-balanced manner, making it easy to dry a molded product made by extruding wet porcelain with an extruder. Transportation costs can be reduced due to the reduced weight and weight.

  In the drawings, FIG. 2 is also a partial perspective view of the product of the roadbed material block of the present invention. It is press-molded in the same way that concrete is manufactured on a block machine. In this case, the projection 7 that restricts the gap with the adjacent block instead of the hollow hole can be configured at a stretch.

  Even in this case, the concaves and convexes 3 and 4 to be fitted at the time of construction are formed on the left and right, and six bowl-shaped grooves 5 are formed on the surface. The width of each of the six smooth surfaces of the stripes on the surface 2 is 15 to 20 mm, the width of the fore edge of the groove 5 is 5 mm, and the end is an edge 6. The depth is 5mm and 10mm deep from both ends, and the two in the middle have a bowl-shaped groove 5 which is 15mm.

It is a product perspective view of a roadbed material block. It is a fragmentary perspective view of the product of a roadbed material block. It is a top view of construction of a roadbed material block. It is a perspective view of a spacer.

Explanation of symbols

1 Block body 2 Block surface 3 Protrusion 4 Poco 5 Groove groove 6 Edge 7 Protrusion 8 Hole 9 Spacer
10 forehead

Claims (6)

In a road floor material block having a smooth surface, a gutter-shaped groove is formed at an appropriate interval on the surface, and a small edge portion where both the groove and the surface are in contact has an inverted taper and an edge. Flooring block. 2. The road floor material block according to claim 1, wherein a small dimension of the gutter-shaped groove on the surface is 2 mm to 10 mm and a depth thereof is 3 mm to 20 mm. According to Claims 1 and 2, characterized in that the saddle-shaped grooves of claim 2 are arranged from 3 to 20 per block, and the saddle-shaped grooves become shallower toward both sides. The described roadbed material block. The roadbed material block according to any one of claims 1, 2, and 3, wherein a dimension of a smooth surface between the grooves is 5 mm to 50 mm. A protrusion for fitting adjacent roadbed material block bodies to each other is formed on one side wall which is an adjacent surface of the roadbed material block, and the protrusion is fitted on the other side wall. 5. The roadbed material block according to claim 1, 2, 3 or 4, wherein a fitting groove is formed. The molded article such as a plastic having a thickness of 5 mm to 20 mm defining the joint width is disposed on the side wall of the road floor material block where the protrusions or fitting grooves are not formed. The roadbed material block according to 1, 2, 3, 4 or 5.