JP5137211B2 - Form for side groove block - Google Patents

Description

The present invention relates to a gutter block used for draining rainwater, snowmelt, and the like that has fallen on a paved road.
In particular, the present invention relates to a gutter block provided with a reinforced cement thin plate having a concavo-convex pattern formed on the surface thereof and improved in strength.
Furthermore, the present invention relates to a side groove block mold for forming the side groove block.

Conventionally, a side groove block comprising a pair of side walls and an upper wall that joins the side walls is known (see Patent Document 1).
A lid hole for fitting a lid plate is formed in the upper wall of the side groove block, and a grating or a concrete lid is used as the lid plate.

  Such a gutter block is laid so as to cross a road, for example, but it has an uneven pattern on its surface in order to prevent slippage when a pedestrian walks and to improve the design at the same time. (See Patent Document 1).

FIG. 10 shows the side groove block 1 having an uneven pattern 1a on the surface of the upper wall.
The uneven pattern 1a also greatly contributes to improving the grip of an automobile tire.
Incidentally, the concrete lid is usually provided with a concavo-convex pattern in order to prevent slipping or improve design.

In order to form such a concavo-convex pattern 1a, it is necessary to form a concavo-convex mold groove for providing a pattern in advance on the inner surface of the mold at the time of manufacture.
For this reason, it takes time and labor to process the formwork, which naturally increases the cost.
In addition, the concave and convex mold grooves are depleted as the number of moldings is repeated, and there is a drawback that the overall life of the mold is shortened.
In this way, when a part of the formwork (that is, the concave and convex mold grooves for patterning) wears down, the entire formwork must be replaced, which is wasteful and the depreciation period must be shortened. .

JP 2000-336738 A

On the other hand, in the above-mentioned side groove block 1, the uneven pattern 1a is abraded by frequent passage of automobiles and the like, and the anti-slip function is lowered compared with the beginning, and at the same time, the design is also deteriorated.
Moreover, a crack may arise in the boundary part with the place paved during use, As a result, a big defect | deletion may arise in a corner | angular part.
If it becomes like this, it will have to replace | exchange for the new gutter block 1, and the construction will require an extra effort and time, and will also generate many expenses.

The present invention has been made on the basis of such background technology, and has been made to overcome the above-described problems of the background technology.
That is, the present invention provides a side groove block that improves the strength of the upper surface of the side groove block, does not need to form a concave and convex pattern groove on the mold, and has an excellent anti-slip function and design. For the purpose.
Furthermore, it aims at providing the form for side groove blocks for shape | molding a side groove block.

  Thus, as a result of earnest research on the background of such problems, the present inventor can solve the above problems by providing a reinforced cement thin plate having excellent strength in the block body of the side groove block. The present invention has been found out and the present invention has been completed based on this finding.

That is, the present invention is ( 1 ) a side groove block mold comprising a U-shaped core frame and a side groove mold for molding a side groove block embedded with a reinforcing cement thin plate. Comprises a bottom, a pair of side walls pivoted in the longitudinal direction of the bottom, and a pair of short side walls pivoted in a direction perpendicular to the longitudinal direction of the bottom. Therefore, it is present in the side groove block mold in which the vertical ribs for temporary holding are formed.

According to the present invention, by providing a separate reinforced cement thin plate on the upper surface of the block main body, it is possible to improve the mechanical strength only in a necessary portion of the side groove block.
By using a reinforced cement thin plate with good wear resistance, it is possible to suppress the reduction of the pattern and improve the durability of the entire side groove block.

Further, since it is no longer necessary to directly form the concave and convex mold grooves in the mold frame A for manufacturing the side groove block 2, the manufacturing mold form becomes simple.
Further, unlike the prior art, the concave and convex mold grooves of the production mold are not worn down, and the lifetime of the entire production mold is not shortened, which is extremely advantageous in terms of cost.
Further, the presence of the reinforced cement thin plate eliminates the need for using a spacer as the reinforcing bar 10 to be embedded in the side groove block 2 as in the conventional case when forming with a mold, so that the forming is simplified and the efficiency is improved.
The longitudinal ribs 12c3 formed on the side wall 12c of the mold can both temporarily hold the reinforced cement thin plate 4 against the bottom 12a and form the rising groove 3c of the side groove block 2.

1 side groove block 1a uneven pattern 2, 2A, 2B, 2C, side groove block 3 block body 3a side wall 3b water guide long groove 3c rising groove 3d U-shaped surface 3e through hole 3f lid hole 3g recess 3h vertical long groove 3j recess 4 reinforced cement thin plate 4a Pattern part 4b Middle window 4c Uneven part 4d Cement board 5 Drainage channel 6 Road 7 Subbase 8 Impervious pavement 9 Permeable pavement 10 Reinforcement 12 Side gutter form 12a Bottom part 12b Middle window formation part 12b1 Convex part 12c Side wall 12c1 Round cylinder 12c Horizontal rib 12c3 Vertical rib 12d Short side wall 12d1 Long convex part 12d2 Through hole 12d3 Convex part 12d4 Protrusion 13 U-shaped core frame 13a Protrusion part 14 Suspended member 15 Bar A Side groove block mold L1 Thickness of reinforced cement thin plate L2 popping height

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows a gutter block according to an embodiment of the present invention.
A plurality of gutter blocks 2 of this embodiment are connected along the longitudinal direction via a connecting screw rod (not shown), and are arranged and constructed mainly in the cross direction of the road.

The side groove block 2 has a concrete block main body 3 having a U-shaped cross section and a separate reinforcing cement thin plate 4 provided on the upper surface of the block main body 3.
A drainage channel 5 is formed in the block main body 3 along its longitudinal direction, and the water flowing in this is drained downstream.

The side wall 3a of the block body 3 is formed with a water guide long groove 3b along its longitudinal direction, and this water guide long groove 3b guides water that has permeated the road.
In addition, it is preferable to provide a drainage fitting so that the water guided from the water guide long groove 3b flows into the drainage channel 5 in a part of the plurality of connected side groove blocks (for example, the utility model registration No. 1). No. 3047285).
A plurality of rising grooves 3c are formed in the side wall 3a at intervals, and communicated with the water guide long groove 3b.

Thus, by forming the plurality of rising grooves 3c on the side wall 3a, the flow of water from the rising grooves 3c to the water guide long groove 3b is generated, water can be guided in the height direction, and the water collecting ability can be further enhanced. it can.
This rising groove 3c exhibits an excellent effect when the thickness of the water-permeable pavement 9 (see FIG. 8) laid on the road surface is thin.

A pair of through holes 3e are formed in the U-shaped surface 3d in the front-rear direction of the block main body 3. A screw rod is inserted into the through holes 3e, and a nut is screwed into the lid main body 3f, thereby engaging the block main body 3 with the nut. They are linked together.
This nut is fitted into the recess 3g of the lid hole 3f.
Further, in such a connected state, concrete is filled in the vertically long groove 3h of the U-shaped surface 3d so that the gap between the block bodies is eliminated and water does not leak from the drainage channel 5.

The main feature of the present invention is that a reinforced cement thin plate 4 for reinforcing the surface of the side groove block 2 is provided on the upper surface of the block body 3.
Hereinafter, the reinforced cement thin plate 4 will be described in detail.

FIG. 2 shows the reinforced cement thin plate 4, where (A) shows the front side and (B) shows the back side.
The reinforced cement thin plate 4 has a certain thickness, and an inner window 4 b having the same shape is formed in accordance with the lid hole 3 f of the block body 3.
On the surface side of the reinforced cement thin plate 4, an uneven pattern (pattern part 4a) is formed.
Since this pattern part 4a is uneven | corrugated, it fulfill | performs the function of the anti-slip which does not slip, for example even if a pedestrian steps on when it rains.
In addition, even if the car runs, it is similarly slippery so that the tire can be gripped accurately.

Since the surface of the reinforced cement thin plate 4 is a portion exposed on the road surface, by providing such a pattern, the design properties can be exhibited together.
Therefore, the form of the concavo-convex pattern is determined from the viewpoints of both the anti-slip function and the design.
On the other hand, on the back side of the reinforced cement thin plate 4, a large number of uneven portions 4 c are formed by the uneven portion forming member.
This uneven part 4c is clearly revealed by, for example, exposing and embedding a part of small gravel, which is an unevenness forming member, on the back side of the reinforced cement thin plate 4 so as to protrude partly.

FIG. 3 is an enlarged cross-sectional view of a part of the reinforced cement thin plate 4.
In the reinforced cement thin plate 4, the portion of small gravel that protrudes and is exposed is embedded in the upper surface of the block body 3 of the side groove block 2.
Therefore, a so-called anchoring effect is exhibited and the reinforced cement thin plate 4 is attached to the block body 3 with a strong binding force.
As this reinforced cement thin plate 4, for example, mechanical strength,
For example, it is preferable to use a material excellent in compressive strength, bending strength, tensile strength, wear resistance strength, or the like.

An example of a specific material is DUCTAL (registered trademark), which is an inorganic composite material using reactive fine powder and is based on cement, and has particularly excellent wear resistance. It is.
The reinforced cement thin plate 4 using this ductal can suppress the reduction of the pattern portion 4a as much as possible, and can extend the life of the reinforced cement thin plate 4.
As a result, the durability of the upper surface of the side groove block 2 provided with the reinforced cement thin plate 4 can be secured at the same time.

Here, the thickness L1 of the reinforced cement thin plate 4 is preferably 12 to 25 mm, while the compressive strength is preferably 40 N / mm ² or more.
If the thickness is smaller than 12 mm, the balance between the uneven pattern portion on the front surface and the uneven portion on the back surface is deteriorated, and it becomes difficult to form them, and so-called “fogging” cannot be sufficiently obtained.
When it is larger than 25 mm, it becomes difficult to handle at the time of insert molding.
Further, if the compressive strength is less than 40 N / mm ^2, it is not possible to exhibit a superior fracture strength as compared with concrete.
In addition, the protrusion height L2 of the uneven portion 4c on the back surface is preferably 5 to 10 mm from the viewpoint of the connectivity with the block body 3.

Next, the manufacturing method (molding method) of the side groove block 2 will be described.
The side groove block 2 is generally manufactured by a method in which the reinforced cement thin plate 4 is temporarily held in a mold frame, and concrete is poured from there and solidified.
4 to 6 show a side groove block mold A for forming the side groove block 2.

FIG. 4 is a diagram showing a developed state of the mold, and FIG. 5 is a diagram showing a state in which the U-shaped core frame is incorporated in the lateral groove mold.
Moreover, FIG. 6 is a figure which shows the state by which the side-groove formwork was assembled.
The side groove block mold A for forming the side groove block 2 mainly comprises a U-shaped core frame 13 and a side groove mold 12, and the side groove mold 12 has a bottom 12a and a pair of the bottom 12a in the longitudinal direction. Side wall 12c and a pair of short side walls 12d perpendicular to the longitudinal direction of the bottom portion 12a.
The pair of side walls 12c is pivotally mounted in the longitudinal direction of the bottom portion 12a and can be rotated, and the pair of short side walls 12d is pivotally mounted in a direction perpendicular to the longitudinal direction of the bottom portion 12a and can be rotated.

The reinforced cement thin plate 4 is temporarily held on the bottom portion 12a of the side groove mold 12.
In that case, the reinforced cement thin plate 4 is formed with a concavo-convex pattern (pattern part 4a) on the front side facing the surface on which the concavo-convex part 4c (for example, a small gravel part) is formed on the back side. Temporarily held with the face facing down.
A rectangular parallelepiped middle window forming portion 12b is erected on the bottom portion 12a, and the middle window 4b of the reinforced cement thin plate 4 is temporarily held so as to be fitted into the middle window forming portion 12b.
The middle window forming portion 12b is formed with a rectangular plate-like convex portion 12b1 for forming the drainage concave portion 3j of the block main body 3.

Further, the side wall 12c is rotatably attached to the bottom portion 12a (in FIG. 4, the front side wall 12c is omitted).
A lateral rib 12c2 for forming the water guide long groove 3b is continuously formed in the side wall 12c in a straight line.
Further, a plurality of vertical ribs 12c3 for holding the reinforced cement thin plate 4 are formed on the side wall 12c. The reinforced cement thin plate 4 is temporarily held along the bottom 12a by the vertical ribs 12c3. (Refer to the enlarged portion in FIG. 4).

That is, the reinforced cement thin plate 4 is inserted and temporarily held in the gap between the vertical rib 12c3 and the bottom 12a.
When the reinforced cement thin plate 4 is thin, the gap can be reduced by lengthening the longitudinal ribs 12c3.
The vertical rib 12c3 is an important part because it also serves to form the rising groove 3c of the side groove block 2 described above.
However, when the reinforced cement thin plate 4 is thick and temporarily held only by the lateral ribs 12c2, the longitudinal ribs 12c3 can be omitted.
The side wall 12c is provided with two round cylinders 12c1.

On the other hand, the short side wall 12d is rotatably attached to the bottom portion 12a similarly to the side wall 12c.
On the short side wall 12d, a vertically long convex portion 12d1 for forming a vertically long groove 3h in the block body 3 is formed.
The short side wall 12d is formed with a through hole 12d2 corresponding to and communicating with the through hole 3e of the block body 3.
Furthermore, a rectangular plate-like convex portion 12d3 for forming a drainage concave portion 3j of the block body 3 is formed on the short side wall 12d.
In addition, tapered projections 12d4 are formed at four locations around the short side wall 12d.

A U-shaped core frame 13 for forming the inner wall surface of the block body 3 is inserted into the side groove mold 12.
A rod-shaped suspended member 14 is attached to the U-shaped core frame 13, and a hook provided at the tip of the wire is hooked on the suspended member 14, thereby allowing the U-shaped core to be suspended. The frame 13 can be lifted.

On the lower surface side of the U-shaped core frame 13, four protrusions 13 a are formed (only the protrusions visible in the figure are shown), and the protrusions 13 a are fitted into the inner window forming part 12 b for alignment. Done.
The protrusion 13a also serves to form a recess 3g for fitting a nut in the block body 3.
Then, when the U-shaped core frame 13 is disposed on the middle window forming portion 12b and the side walls 12c on both sides are rotated to stand up with respect to the bottom portion 12a, the state shown in FIG. 5 is obtained.

Then, when the short side wall 12d is rotated to stand up with respect to the bottom 12a and the projection 12d4 of the short side wall 12d is inserted into the round cylinder 12c1 at the end of the side wall 12c and closed, the entire formwork as shown in FIG. Will be assembled.
And in order to form the through-hole 3e in the block main body 3, the taper-shaped rod 15 is inserted in the through-hole 12d2, and concrete is poured and hardened finally.
The reinforced cement thin plate 4 held on the bottom 12a is integrated with the block body 3 (see FIG. 1) in a state in which an uneven portion 4c (for example, a small gravel portion) facing upward is embedded in concrete.

The tapered bar 15 is removed from the block main body 3, and a passage into which a coupling bolt can be inserted is formed at the trace.
Incidentally, when pouring concrete, it is preferable to attach a form vibrator to the side wall 12c and vibrate so that the concrete is surely uniformly filled in the side groove formwork.

By the way, in order to reinforce, the reinforcing bar 10 is embedded at a certain depth from the surface of the side groove block (see FIG. 7). This is because moisture enters from the surface in order to improve the durability of the reinforcing bar 10. This is in order to prevent corrosion due to the so-called “fogging”.
The reinforcing bars 10 are simultaneously embedded in the block body 3 at the time of molding. However, a molding method in which the reinforced cement thin plate 4 is inserted at the time of molding has an advantage that the reinforcing bars 10 can be embedded simultaneously very easily.

FIG. 7 is a view showing a relationship between the side groove mold 12 and the reinforced cement thin plate 4 at the time of molding.
In the present invention, as shown in the figure, the bare rebar 10 is simply placed on the reinforced cement thin plate that is temporarily fixed to the bottom 12a of the side groove mold 12, so that the thickness of the thin plate is Inevitably, there is an advantage that a so-called “cover” is obtained.
Therefore, at the time of molding, a so-called “cover” is ensured by simply placing the bare rebar 10 on the reinforced cement thin plate 4 temporarily held on the bottom surface.
Incidentally, in the past, in order to ensure this “covering”, the reinforcing bar was supported and molded with a spacer (in the figure, the two-dot chain line indicates the spacer), but this spacer is naturally embedded in the product. It was.
As described above, in the molding method using the mold according to the present invention, “fogging” is easily ensured, it is not necessary to use a spacer or the like, and molding is easy and efficient.

Next, a method for laying the gutter block 2 on the road 6 will be described.
FIG. 8 is a view showing a state in which the gutter block 2 is disposed and constructed on the road 6.
A road 6 is constructed outside the side wall 3a of the gutter block 2.
An impermeable pavement 8 is provided on the roadbed 7 on the road, and the upper surface thereof is located at the lower end of the water guide long groove 3b.
Further, a water-permeable pavement 9 is provided on the water-impermeable pavement 8, and the upper surface thereof is flush with the side groove block 2.

On the road 6 in which such a gutter block 2 is laid, rainwater that has fallen on the road penetrates into the water-permeable pavement 9, reaches the upper surface of the water-impermeable pavement 8, travels along the upper surface, and is guided to the gutter block 2. It is burned.
Then, the rainwater guided to the side groove block 2 travels through the water guide long groove 3b and flows into a drainage channel 5 from a water guide hole (not shown) to be efficiently drained.
Moreover, even if the upper surface of the water-impermeable pavement 8 rises due to construction errors and the thickness of the water-permeable pavement 9 decreases, a plurality of rising grooves 3c are formed on the side wall 3a, so that the rising grooves 3c to the water guide long grooves 3b. Water flow is generated and water can be conducted.

[Other Embodiments]
In the above embodiment, the side groove block as shown in FIG. 1 has been described.
However, the side groove block of the present invention includes another type of side groove block as shown in FIG. 9, for example.
Fig. 9 (A) shows a bottomed side groove, Fig. 9 (B) shows a round water channel side groove, and Fig. 9 (C) shows a mass type side groove. The reinforced cement sheet is provided in a shape corresponding to each surface. ing.
Of course, other side groove blocks are also applicable.

  Although the present invention has been described above, the present invention is not limited to the above-described embodiment, and various other modifications can be made without departing from the essence thereof. .

For example, in the above-described embodiment, the uneven portion 4c is formed on the cement plate 4d (described in FIG. 3) with small gravel, but the uneven portion 4c may be a metal piece, a glass piece, or the like.
Moreover, although the case where the reinforced cement thin plate 4 is simultaneously embedded by molding with the mold of the side groove block 2 is shown, the block main body 3 and the reinforced cement thin plate 4 may be used by being bonded with an adhesive or the like, for example. Then, a bolt hole may be formed in the block main body 3, a countersink hole may be formed in the reinforced cement thin plate 4, and the bolts may be screwed together.

  In that case, the reinforced cement thin plate 4 can be removed, and even if the pattern portion 4a is worn due to driving of the automobile, it is only necessary to replace the reinforced cement thin plate 4 and it is not necessary to replace it with a new gutter block. is there.

The present invention relates to a gutter block used for draining rainwater and snowmelt that has fallen on a paved road, and by using a reinforced cement thin plate with good wear resistance, it is possible to suppress a reduction in pattern The strength and durability of the entire side groove block can be improved. Since the concave and convex mold grooves are not required as the mold frame, the structure is simple and the molding is easy. As long as such advantages can be used, the present invention can be applied to other civil engineering blocks.

FIG. 1 is an explanatory view showing an embodiment of a gutter block according to the present invention. FIG. 2 is an explanatory view showing a reinforced cement thin plate, in which (A) shows the front surface side and (B) shows the back surface side. FIG. 3 is an enlarged cross-sectional view of a part of the reinforced cement sheet. FIG. 4 is an explanatory view showing a developed state of the side groove block mold. FIG. 5 is an explanatory view showing a state in which the U-shaped core frame is incorporated in the lateral groove mold. FIG. 6 is an explanatory view showing a state where the side groove block mold is assembled. FIG. 7 is an explanatory view showing the relationship between the side groove formwork and the reinforced cement thin plate during molding. FIG. 8 is an explanatory view showing a state in which the gutter block is disposed and constructed on the road. FIG. 9 is a diagram showing a side groove block of another form, in which FIG. 9 (A) shows a bottomed side groove, (B) shows a round waterway side groove, and FIG. 9 (C) shows a mass type side groove. FIG. 10 shows a conventional gutter block having an uneven pattern on the upper wall.

Claims (1)

  A side groove block mold comprising a U-shaped core frame and a side groove mold for molding a side groove block embedded with a reinforced cement thin plate, the side groove mold in the longitudinal direction of the bottom and the bottom A pair of side walls pivotally attached and a pair of short side walls pivotally attached in a direction perpendicular to the longitudinal direction of the bottom portion, and longitudinal ribs for temporarily holding the reinforcing cement thin plate against the bottom portion on the side walls A form for a side groove block, wherein:

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