JP5361810B2 - Curb block combination and curb block construction method - Google Patents

Description

  The present invention relates to a combination of curb blocks arranged at the boundary between a roadway and a sidewalk and a method for constructing the curb blocks.

  In general, a curb block is arranged at the boundary between the roadway and the sidewalk to protect the pedestrian by dividing the roadway and the sidewalk.

  As such a curb block, for example, Patent Document 1 below discloses a boundary block in which a reflecting plate is attached to an upper surface and / or a side surface of a concrete block body. Both end surfaces in the length direction of the boundary block are flat surfaces.

  On the other hand, when constructing such a curb block, first, a plurality of blocks are arranged side by side along the boundary between the sidewalk and the roadway. At this time, the end surfaces of adjacent blocks are not abutted with each other and are arranged with a predetermined interval, and both sides of the space generated between the blocks are covered with tape or a plate material to close the space. The blocks are connected by pouring mortar or the like into this space.

JP 2003-221803 A

  However, in the conventional curb block construction method, a space for mortar filling must be secured between adjacent blocks, and the space must be closed with a tape or a plate material. In addition, a tape, a plate material, and the like have to be prepared separately, and there is a problem that construction workability is poor.

  Moreover, it is desired that the position of the curb block can be clearly identified from the driver traveling in the vehicle from the viewpoint of safety. However, in recent years, as a part of barrier-free measures, the height of the curb block tends to be lowered in order to reduce the level difference between the roadway and the sidewalk, which makes it difficult for the driver to identify the curb block.

  In the case of the block of Patent Document 1, a reflector is attached to the upper surface and / or side surface of the block, so that discrimination power during night driving is enhanced, but a block with a large flashy reflector attached lasts for a long time. As a result, there was a problem that the landscape of the road would be damaged.

  Accordingly, an object of the present invention is to provide a curb block and a construction method therefor that can simplify construction and increase discrimination power without impairing the landscape.

In order to achieve the above object, the present invention provides a combination of curb blocks arranged at the boundary between a roadway and a sidewalk.
Of each curb block, the block arranged at least in the middle is formed with a vertical groove extending vertically in the center in the width direction of both end faces in the length direction,
A block with a slope in which an upper edge corner of at least one end face in the length direction is cut out in a tapered shape to form a slope;
It includes at least a drainage block in which a drainage groove opened on the lower surface penetrating both side surfaces is formed.

  According to the above invention, at least the block arranged in the middle (the block in which other blocks are connected on both sides) is formed with a vertical groove extending vertically in the center in the width direction of both end faces in the length direction. A space closed between adjacent blocks can be formed simply by abutting the end faces of adjacent blocks with each other, and adjacent blocks can be connected by pouring mortar or the like into this space. In this way, it is not necessary to close the space between adjacent blocks with tape, plate material, etc., and a closed space can be formed between both blocks with a simple operation of just matching the end faces of the blocks. , Construction workability can be improved.

  Some of them have a tapered slope at the upper edge corner of at least one end face in the length direction of the block, so that when viewed from the driver, the slope part of the curb block body is three-dimensional. It appears as a typical accent, making it easier to identify the position of the curb block. In addition, the shape of the curb block is changed to bring about a design taste, and it does not give a large flashy pattern, so the landscape is not impaired.

  Furthermore, the curb block has a relatively simple shape in which longitudinal grooves extending vertically are formed on both end faces in the length direction, and the upper edge corner portion of at least one end face in the length direction forms a tapered slope. Therefore, it is possible to reduce the manufacturing cost and durability by putting hard concrete into the formwork, compacting it with pressure vibration, etc., and immediately removing it from the formwork. It can be made excellent in properties. In recent research, general cast molded products have a phenomenon in which concrete is cracked and deteriorates due to repeated freezing and thawing of rainwater that has entered the inside, that is, it is vulnerable to frost damage. It has been reported that molded articles are resistant to frost damage.

  In the combination of curb blocks of the present invention, it is preferable that the slope of the block with slopes forms a light reflecting surface. According to this, since the slope forms a light reflecting surface, the light from the vehicle light will be reflected toward the driver, making it easy to see even on a small reflecting surface, ensuring the curb block reliably Can be identified. Further, the light reflecting surface is formed at the upper edge corner of at least one end surface in the length direction of the curb block, and has a small area and does not become a flashy pattern, so the landscape is not impaired.

  The drainage block is a concrete block formed by an immediate demolding method in which hard concrete is poured into a formwork, compacted, and immediately extracted from the formwork. It is preferable that the drainage groove | channel which makes a shape is divided and formed in two along the longitudinal direction via the pillar part arrange | positioned in the center. According to this, in the immediate demolding method, when the molded product is extracted from the mold, the pillar portion between the two drainage grooves prevents the concrete from collapsing, so even a block having a drainage groove, It becomes possible to mold by an immediate demolding method. The drainage groove can reliably drain the water accumulated at the bottom of the sidewalk or roadway.

  Moreover, it is preferable that each curb block is formed with streak-like irregularities on the inner surface of the vertical groove. According to this, since the streaky unevenness is formed on the inner surface of the vertical groove, the mortar filled in the space between adjacent blocks is solidified so as to bite into the uneven part, and the contact area between the curb block and the mortar Since the adhesion strength between the block and the mortar is improved, the curb blocks can be firmly connected to each other.

  In the curb block combination according to the present invention, the sloped block, the drainage block, the normal block only having the longitudinal groove, and the height gradually lowering from one end to the other end in the longitudinal direction. -It is still more preferable to have at least a cut-down block and a loading block whose height is lowered over the entire lengthwise direction.

  Further, the curb block construction method of the present invention uses the combination of the curb blocks, arranges these blocks side by side along the boundary between the roadway and the sidewalk, and abuts the end surfaces of the adjacent curb blocks, The space formed by the longitudinal grooves formed on the end face is filled with mortar and solidified.

  According to the above invention, the curb blocks are arranged side by side along the boundary between the roadway and the sidewalk, the end surfaces of the adjacent curb blocks are abutted, and the space formed by the vertical grooves formed on the end surfaces. Adjacent blocks can be connected by filling and solidifying the mortar.

  At this time, it is not necessary to close the space between adjacent blocks with tape, plate material, etc., and a closed space can be formed between both blocks with a simple operation of just abutting the end surfaces of both blocks. , Construction workability can be improved.

  According to the present invention, since the vertical groove extending in the vertical direction is formed in the center portion in the width direction of both end faces in the length direction, the end faces of the adjacent blocks are blocked against each other only by abutting each other. A space can be formed, and by pouring mortar or the like into the gap, adjacent blocks can be connected to each other, and the workability can be improved.

  In addition, since it has a sloped block provided with a tapered slope at the upper edge corner of the block length direction end face, when viewed from the driver, the slope part appears as a three-dimensional accent, It becomes easy to identify the position of the curb block, and since it is not a flashy pattern or shape, the landscape is not damaged.

It is a perspective view which shows one Embodiment of the block with a slope in the combination of the curb block of this invention. It is a perspective view which shows one Embodiment of the drainage block in the combination of the curb block of this invention. It is a perspective view which shows an example of the formwork for shape | molding the drainage block. The manufacturing process of the drainage block is shown, (a) is an explanatory view showing the state before the concrete body is filled with the concrete material and the plunger is pushed in, (b) is the plunger pushed into the mold body. FIG. 5C is an explanatory diagram showing the molded state, and FIG. 5C is an explanatory diagram showing a state in which the molded block is extracted from the mold. It is a perspective view which shows one Embodiment of the normal block in the combination of the curb block of this invention. It is a perspective view which shows one Embodiment of the state which constructed the curb block using the combination of the curb block of this invention. It is explanatory drawing which shows the other example of the block with a slope used by this invention.

  Hereinafter, an embodiment of a combination of curb blocks according to the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a sloped block constituting the curb block combination of the present invention.

  The sloped block 10a has a rectangular block shape extending long in one direction, and has upper and lower surfaces 11, 12, side surfaces 13, 13, and both longitudinal end surfaces 15, 16. Both side surfaces 13, 13 form gentle taper surfaces that gradually narrow each other toward the upper surface 11.

  Longitudinal grooves 17 and 17 extending vertically from the upper surface 11 to the lower surface 12 are formed at the center in the width direction of the both end surfaces 15 and 16 in the length direction of the block 10a with a slope. Due to the vertical grooves 17, both side portions in the width direction of both end surfaces 15 and 16 in the length direction have a shape protruding from the center portion in the width direction. On the inner surface of the vertical groove 17, streaky irregularities 18 extending in the vertical direction are formed.

  Further, the upper edge corner of the length direction one end face 15 is cut out in a tapered shape to form a slope 20. The slope 20 is a light reflecting surface capable of reflecting light by attaching a member that reflects light, for example, a reflecting plate or a reflecting tape, or by applying a reflective paint. Further, a flat surface 22 parallel to the upper surface 11 is formed from the lower end of the inclined surface 20 toward the one end surface 15 in the length direction. The inclined surface 20 and the flat surface 22 can also be formed on the other end surface 16 side in the length direction.

  FIG. 2 shows an embodiment of the drainage block constituting the combination of the curb blocks of the present invention.

  The drainage block 10b as a whole has the same shape as the sloped block 10a, and has longitudinal grooves 17 and 17 extending vertically on both end surfaces in the longitudinal direction. A streak-like unevenness 18 extending in the vertical direction is formed.

  However, the drainage block 10b is not provided with the slope 20 (however, the slope 20 may be provided), and is different from the sloped block 10b in that it has two drainage grooves 24, 24. .

  That is, below the drainage block 10b, a drainage groove 24 having an inverted U shape as viewed from the side surface 13 side is divided into two along the longitudinal direction via a column part 26 arranged in the center, And it forms through both side surfaces 13 and 13, respectively.

  The drain block 10b can be formed by an immediate demolding method using a mold 30 as shown in FIG. 3, for example. That is, the mold 30 includes a mold body 32 having a rectangular through-opening in a plan view, a pallet 35 detachably contacting the lower surface of the mold body 32, and the mold body 32. The two drawing cores 36 are detachably disposed on the pallet 35 through the notch portion 32a from the side surface, and the plunger 34 is pushed into the mold body 32 from above.

  On the end surface in the longitudinal direction of the inner periphery of the mold body 32, a protrusion 32b extending vertically is formed at the center in the width direction, and the vertical groove 17 is formed by the protrusion 32b. Further, the drawing core 36 is a portion for forming the drain grooves 24 and 24.

  The plunger 34 has a top wall 34b and side walls 34a that extend downward from both sides thereof and are inserted into the mold body 32. Both side surfaces of the block 10b are formed by the side walls 34a. 13 is formed into a taper shape. Further, notches 34c into which the protrusions 32b of the mold body 32 are inserted are provided at both ends of the top wall 34b. Further, the side wall 34a is provided with a notch 34d into which the drawing core 36 is inserted.

  The drainage block 10b can be manufactured by the process shown in FIG. That is, as shown in FIG. 2A, the concrete C hardened in the mold body 32 in a state where the pallet 35 is brought into contact with the lower surface of the mold body 32 and the extraction core 36 is disposed on the pallet 35. Fill.

  Next, as shown in FIG. 4B, the plunger 34 is pushed into the mold body 32, and the concrete C is pressed into a block shape while being compacted by a vibrator (not shown). After forming the block in this way, the drawn core 36 is extracted.

  Finally, as shown in FIG. 3C, the pallet 35 is lowered, and the molded block is extracted from the mold body 32. At this time, in this embodiment, since the cavity to be the drainage groove 24 is divided into two and the column part 26 is formed between them, the extracted molded product is prevented from being deformed. it can. The block 10b for drainage can be manufactured by drying and curing the block thus formed.

  Not only the draining block 10b but also the sloped block 10a and other blocks which will be described later can be formed by an immediate demolding method similar to the above.

  FIG. 5 shows an example of a normal block used in the curb block combination of the present invention. The normal block 10c is different from the block 10a with a slope shown in FIG. 1 in that the upper edge corner portion of the lengthwise one end face 15 is not cut out in a tapered shape and does not have the slope 20. However, the other structure is the same as the block 10a with a slope.

  FIG. 6 shows all the blocks used in the curb block combination of the present invention and an embodiment constructed using those curb blocks.

  As the combination of the curb blocks, the following curb blocks are used in addition to the curb blocks 10a, 10b, and 10c shown in FIGS.

  That is, one of them is a tapered surface that is lower in height than the curb blocks 10a, 10b, and 10c and gradually decreases from one side surface (sidewalk side) to the other side surface (roadway side). It is a loading block 10e having 5a. The other is that one end in the length direction is the same height as the thin block 10e, and gradually increases toward the other end in the length direction, and from one side (the sidewalk side) to the other side (the roadway side). The up-and-down block 10d has a taper surface 6a that gradually decreases and a flat surface 6b having the same height as the lower end of the slope 20 of the block 10a with a slope. Similarly to the curb blocks 10a, 10b, and 10c, vertical grooves 17 are formed at both ends in the lengthwise direction in the entry block 10e and the up / down block 10d.

  Then, the various curb blocks are arranged side by side along the boundary between the sidewalk 1 and the roadway 2 shown in FIG.

  For example, at the boundary between the sidewalk 1 and the roadway 2, first, the thin entry blocks 10 e and 10 e are arranged with the tapered surface 5 a facing the roadway 2 side, and the end surfaces are in contact with each other. Next, the up / down block 10d is installed with the lower end facing the entry block 10e and the tapered surface 6a facing the roadway 2 so that the end surfaces are in contact with each other.

  Next, the end face 15 of the sloped stone block 10a is placed in contact with the end face having the flat surface 6b of the up / down block 10e, and the normal block 10c is placed on the other end face 16 of the sloped block 10a. The one end surface 15 of this is placed in contact.

  Further, one end face 15 of the drainage block 10b having the drainage groove 24 is placed in contact with the other end face 16 of the normal curb block 10c.

  Subsequently, the other end surface 16 of the block with slope 10a is placed in contact with the other end surface 16 of the drainage block 10c.

  Further, one end face 15 of another sloped block 10a is placed in contact with one end face 15 of the sloped block 10a. At this time, since the end surfaces 15 and 15 on the slope 20 side are brought into contact with each other, the flat surfaces 22 and 22 are in contact with each other and the slopes 20 and 20 are on the upper surface 11 as shown in the partially enlarged explanatory view of FIG. It is arranged to spread toward the side.

  Thereafter, a predetermined number of curb blocks are arranged along the boundary between the sidewalk 1 and the roadway 2 by repeating the same arrangement.

  And by adjoining the end surface of adjacent curb blocks at the said process, the block formed by the vertical groove 17 can be filled with mortar, and it can connect adjacent blocks.

  At this time, it is not necessary to close the space between adjacent blocks with a tape or a plate material, and a closed space between both blocks can be formed by a simple operation of just matching the end surfaces of both flocks. Construction workability can be improved.

  In addition, the sloped block 10a is arranged at predetermined intervals, and at the part where the slopes 20 abut each other, the slope 20 located opposite to the traveling direction of the vehicle can be easily seen from the driver side. Since it looks as a three-dimensional accent, it becomes easy to identify the position of the curb block.

  Furthermore, in this sloped surface 10a, since the slope 20 forms a light reflecting surface, light from the vehicle light is effectively reflected toward the driver, and even if the area of the light reflecting surface is small, The curb block can be reliably identified.

  In addition, you may make it reflect light not only using the slope 20 but using the reflecting plate 21 as shown in FIG. The reflecting plate 21 includes a reflecting plate 21a and a foot 21b that hangs from the center of the lower surface. And before the mortar with which the space between curb blocks is solidified, the reflector 21 can be attached to the curb block by embedding the foot 21b of the reflector 21 in the mortar. Thus, by embedding the foot 21b in the mortar, the reflector 21 can be firmly attached to the curb block with a simple operation. In addition, it is preferable to install the reflecting plate 21 in a state where the reflecting plate 21a faces the driver side, and this makes it possible to further improve the discriminability from the driver.

  Moreover, since the curb block in this embodiment has the streaky unevenness 18 formed on the inner surface of the vertical groove 17, the mortar filled in the space between the blocks is solidified so as to bite into the unevenness 18, and the block Since the contact area with the mortar increases, the blocks can be firmly connected to each other.

  Further, as shown in FIG. 6, the sloped block 10a has the slope 20 only on one end face thereof, so that the slopes 20 abut each other by disposing the drainage block 10b and the normal block 10c therebetween. The broken portions can be arranged at an appropriate interval, and the accent by the slope 20 can be prevented from becoming obstructive. Moreover, in the part which contacted the other end surfaces 16 and 16 without the inclined surface 20, the amount of mortar which can be filled between blocks can be increased, and it becomes possible to raise the joining force between blocks.

  Further, by disposing the drainage block 10b at a predetermined position of the curb block arrangement, the drainage provided on the roadway side, for example, rainwater collected on the sidewalk side through the two drainage grooves 24, 24 having an inverted U shape. Can drain into the road.

  Furthermore, since the curb block of the present invention can be molded by an immediate demolding method that is resistant to frost damage, the weather resistance of the block can be improved.

  As another aspect, as shown in FIG. 7, the inclined surface 20 may have a shape that does not form the flat surface 22. By abutting the end surfaces on which the inclined surfaces 20 are formed, a substantially V-shaped gap is formed between adjacent blocks. However, when the flat surface 22 is provided, the interval between the inclined surfaces 20 is increased, and the inclined surface 20 can be easily seen from the driver, so that the effect when the reflecting surface is formed can be enhanced.

DESCRIPTION OF SYMBOLS 1 Sidewalk 2 Roadway 5a Tapered surface 6a Tapered surface 6b Flat surface 10a Sloped block 10b Drainage block 10c Normal block 10d Rounding up / down block 10e Entrance block 11 Upper surface 12 Lower surface 13 Side surface 15 Length direction one end surface 16 Length direction other end surface 17 Vertical groove 18 Concavity and convexity 20 Slope 21 Reflective plate 21a Reflective plate 21b Foot 22 Flat surface 24 Drainage groove 26 Pillar part 30 Formwork 32 Formwork body 32a Notch 32b Projection 34 Plunger 34a Side wall 34b Top wall 34c Notch 34d Notch 35 Pallet 36 Pull-out core C Concrete

Claims (6)

In the combination of curb blocks placed at the boundary between the roadway and the sidewalk,
Of each curb block, the block arranged at least in the middle is formed with a vertical groove extending vertically in the center in the width direction of both end faces in the length direction,
A block with a slope in which an upper edge corner of at least one end face in the length direction is cut out in a tapered shape to form a slope;
A curb block combination comprising at least a drainage block having a drainage groove formed in a lower surface penetrating both side surfaces.   The combination of curb blocks according to claim 1, wherein the slope of the sloped block forms a light reflecting surface.   The drainage block is a concrete block formed by an immediate demolding method in which hard concrete is put into a formwork, compacted, and immediately extracted from the formwork, and has an inverted U shape when viewed from the side. The combination of curb blocks according to claim 1 or 2, wherein the drainage groove formed is divided into two along the longitudinal direction via a pillar portion arranged in the center.   The combination of curb blocks according to any one of claims 1 to 3, wherein streaky irregularities are formed on the inner surface of the longitudinal groove of each block.   The block with slope, the block for drainage, the normal block only having the longitudinal groove, the round-up / down block whose height gradually decreases from one end to the other end in the longitudinal direction, and the entire longitudinal direction The combination of curb blocks according to any one of claims 1 to 4, having at least an entry block having a reduced height.   Using the combination of curb blocks according to any one of claims 1 to 5, these blocks are arranged side by side along the boundary between the roadway and the sidewalk, the end surfaces of adjacent curb blocks are abutted, and the end surfaces A curb block construction method characterized by filling mortar into a space formed by the formed longitudinal grooves and solidifying the space.