JP2006291527A - Block for constructing water channel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a block capable of constructing a water channel capable of increasing traveling safety. <P>SOLUTION: The upper end width w21 of a water passing hole 16 is determined within the range of 12 to 20 mm. Thus, even when vehicles such as a bicycle, a wheelchair, and a baby carriage travel on the block 10, the possibility of the fitting of the tire of the vehicles to the water passing hole 16 can be avoided, and the traveling safety of the water channel constructed of the block 10 can be increased. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a block for use in building a water channel, and more particularly to a water channel building block having a water passage hole in a top plate part that reaches a water channel in the block.

There are roughly two types of water channel building blocks, one having a vertical cross section and a reverse U shape. In the former block, a water channel is constructed by connecting the blocks in the laying position and connecting them together. In the latter block, the blocks are arranged and connected to each other on the foundation provided in the laying position. A waterway is constructed. Each block has at least one water passage hole in the top plate part that reaches the water channel in the block, and the rain water guided to the top surface of the top plate part is taken into the water channel from the water hole. The desired drainage is performed.
Japanese Patent Laid-Open No. 4-111825

  The block is used when building a waterway on the side of the road or in the center of the road, but the size of the water passage hole varies depending on the size of the block and the manufacturer, so that bicycles, wheelchairs, baby carriages, etc. When the vehicle travels on the block, the tire may be fitted into the water passage hole and the traveling safety may be impaired.

  The present invention has been created in view of the above circumstances, and an object thereof is to provide a block capable of constructing a water channel that can improve traveling safety.

  In order to achieve the above object, there is provided a water channel construction block having at least a top plate portion and left and right side wall portions, and having at least one water passage hole leading to a water channel on the top surface of the top plate portion, the upper end of the water passage hole. Its width is in the range of 12-20 mm.

  According to this waterway construction block, since the upper end width of the water passage hole is set within a range of 12 to 20 mm, even when a vehicle such as a bicycle, a wheelchair or a baby carriage travels on the block, the tire of the vehicle The possibility of fitting into the water passage hole can be avoided, and the traveling safety on the water channel constructed by the block can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, the block which can construct | assemble the water channel which can improve driving | running | working safety can be provided.

  The above object and other objects, structural features, and operational effects of the present invention will become apparent from the following description and the accompanying drawings.

  1 to 5 show an embodiment of the present invention, FIG. 1 is a perspective view of a block for building a water channel (hereinafter simply referred to as a block), and FIG. 2 (A) is a water guide groove for the block shown in FIG. FIG. 2B is a longitudinal sectional view broken along the plane including the water passage holes shown in FIG. 1, FIG. 3, FIG. 4, FIG. FIG. 5B is a dimensional diagram of the block shown in FIG.

  First, the overall configuration of the block 10 will be described with reference to FIGS. 1, 2A, and 2B.

  As shown in FIGS. 1, 2A and 2B, the block 10 includes a top plate portion 11, left and right side wall portions 12 and 12, and a bottom plate portion 13, and the whole has a substantially rectangular parallelepiped shape. A flow channel 14 having a substantially rectangular longitudinal section is provided in the block 10 along the length direction, and the flow channel 14 is open at both end surfaces in the length direction of the block 10.

  The top surface 11a of the top plate part 11 is inclined downward toward the center in the width direction, and the longitudinal section forms a V shape. At the center in the width direction of the top surface 11a of the top plate portion 11, a total of four water guide grooves 15 are provided at intervals in the length direction, and a total of three water guide channels 14 are provided between the adjacent water guide grooves 15 respectively. The water flow holes 16 are provided.

  The depth of each water guide groove 15 is ½ or less of the thickness of the top plate portion 11, each water guide groove 15 has a longitudinal sectional shape in which the width dimension gradually decreases from the upper end toward the lower end, and It has a longitudinal cross-sectional shape in which the length dimension gradually decreases from the upper end to the lower end, and the whole forms a quadrangular pyramid shape. Each water passage 16 has a vertical cross-sectional shape in which the width dimension gradually increases from the upper end to the lower end, and has a vertical cross-sectional shape in which the length dimension gradually increases from the upper end to the lower end. The whole has an inverted quadrangular truncated pyramid shape, and the upper end width of the water passage hole 16 coincides with the upper end width of the water guide groove 15.

  In this block 10, a water channel is constructed by arranging the blocks 10 at the laying positions and connecting them together. Rainwater or the like guided to the upper surface 11a of the top plate portion 11 is collected in the water guide groove 15 and the water passage hole 16 according to the inclination thereof, and includes the rainwater or the like led from the water guide groove 15 to the water passage hole 16. 16 is taken into the flowing water channel 14, and the desired drainage is performed by the flowing water channel 14.

  Next, concrete dimension examples of the block 10 shown in FIG. 1, FIG. 2 (A) and FIG. 2 (B) will be described with reference to FIG. 3, FIG. 4, FIG. 5 (A) and FIG. I will explain.

  The length L1 of the block 10 shown in FIG. 3 is 2000 mm, the length L2 of each water guide groove 15 is 50 mm, the length L3 of each water passage 16 is 600 mm, and the width W1 of the top plate portion 11 is 470 mm.

  4, the width W2 of the left and right side wall portions 12 and 12 is 400 mm, the width W3 of the flowing water channel 14 is 300 mm, the inclination angle θ of the top surface 11a of the top plate portion 11 is about 1 degree (2% gradient), and the height of the block 10 The length T1 is 435 mm, the height T2 of the flowing water channel 14 is 300 mm, and the center thickness t1 of the top plate portion 11 is 70 mm.

  The upper end width w11 of each water guide groove 15 shown in FIG. 5A is 12 mm and the lower end width w12 is 10 mm. The upper end width w21 of each water passage hole 16 shown in FIG. 5B is 12 mm, and the lower end width w22 is 25 mm. It is.

  The upper end width w21, length L3 and vertical cross-sectional shape of the water flow hole 16 and the upper end width w11, length L2 and vertical cross-sectional shape of the water guide groove 15 are not arbitrarily determined, and each size and shape Are determined based on individual design philosophy.

  In the following, the effects of the design concept related to the upper end width w21, length L3 and longitudinal section of the water flow hole 16 and the design concept related to the upper end width w11, length L2 and longitudinal section of the water guide groove 15 will be described. Will be described in order.

[Design concept related to the upper end width w21 of the water passage hole 16]
The upper limit value of the upper end width w21 of the water passage hole 16 is determined based on the minimum value of the tire width generally used for vehicles such as bicycles, wheelchairs and baby carriages, and the lower limit value of the upper end width w21 of the water passage hole 16 Is determined based on the diameter of the horizontal portion of the inverted T-shaped block suspension used when constructing the water channel.

  Since the tire width often used for the vehicle is 25 to 45 mm, if the upper end width w21 of the water passage hole 16 is larger than 25 mm, a tire having a tire width of 25 mm may be fitted into the water passage hole 16 during traveling. Is expensive. In order to avoid this possibility, it is necessary that the tire having a tire width of 25 mm is not completely fitted into the water passage hole 16 and that it does not interfere with running even when part of the tire is inserted. Considering that it is an elastic material, the upper limit value of the upper end width w <b> 21 of the water passage 16 is 25 mm × 80% = 20 mm.

  Moreover, since the limit design of the diameter of the horizontal part of the block hanging tool is 10 mm, if the upper end width w21 of the water passage hole 16 is smaller than 10 mm, the horizontal part cannot be inserted into the water hole 16. Incidentally, the suspension of the block 10 by the block suspension is performed by raising the block suspension after inserting the horizontal portion through the water hole 16 into the flow channel 14 and rotating it 90 degrees. The horizontal portion after being rotated by 90 degrees maintains a state of being engaged with the upper surface of the flowing water channel 14 (the lower surface of the top plate portion 11). In order to enable the insertion, it is necessary to allow a horizontal portion having a diameter of 10 mm to be easily inserted into the water passage hole 16, and taking into account the dimensional tolerance of the water passage hole 16, 10 mm × 120% = The lower limit value of the upper end width w21 of the water passage 16 is 12 mm.

  That is, the preferable range of the upper end width w21 of the water passage hole 16 is 12 to 20 mm. As the upper limit of 20 mm is smaller than this, the driving safety can be improved, and therefore, the range in which the rainwater or the like, which is the role of the water passage hole 16, does not hinder, for example, 25 mm × 75%. = 18.75 mm, or 25 mm × 70% = 17.5 mm may be set as the upper limit value.

  Therefore, if the upper end width w21 of the water passage hole 16 is set within a range of 12 to 20 mm, the tire of the vehicle can pass through the water passage hole 16 even when a vehicle such as a bicycle, a wheelchair or a baby carriage travels on the block 10. Can be avoided, and the traveling safety on the water channel constructed by the block 10 can be improved. Further, the block suspension can be inserted into the water passage hole 16 in the horizontal portion without hindrance, and the suspension and laying work of the block 10 by the block suspension can be performed satisfactorily.

[Design concept related to length L3 of water passage 16]
As described above, since the role of the water passage hole 16 is to take in rainwater and the like, the length L3 is increased as much as possible in order to effectively take in rainwater and the like guided to the upper surface 11a of the top plate portion 11. Therefore, it is necessary to secure a sufficient upper end area (L3 × w21).

  In the block 10 shown in FIG. 1, a total of three water passage holes 16 are provided between each of the four water guide grooves 15, but the length L2 of the four water guide grooves 15 is added. If the value (4 × L2) is less than 8% of the length L1 of the block 10, the strength of the top plate portion 11 is lowered, and there is a risk of causing cracks, defects or the like due to the load in the normal range. Further, when the added value (4 × L2) of the length L2 of the four water guide grooves 15 is larger than 19% of the length L1 of the block 10, the rainwater or the like in relation to the upper end width w21 of the water passage hole 16 is obtained. Uptake will be reduced.

  That is, the preferable range of the added value (3 × L3) of the length L3 of the three water passage holes 16 is 81 to 92% of the length L1 of the block 10.

  Therefore, if the added value (3 × L3) of the length L3 of the three water passage holes 16 is determined within a range of 81 to 92% of the length L1 of the block 10, the top plate portion is caused by the load in the normal range. 11 can be prevented from being cracked or broken, and the ability to capture rainwater or the like through the water passage holes 16 can be improved.

[Design concept related to vertical cross-sectional shape of water passage hole 16]
As described above, the role of the water passage hole 16 is to take in rainwater or the like. However, if the lower end width w22 is the same as the upper end width w21 or if the lower end width w22 is smaller than the upper end width w21, rainwater There is a risk that clogging may occur due to a piece of wood, a leaf, gravel or the like mixed in the water passage 16 being caught in the middle of the water passage hole 16.

  However, if the longitudinal cross-sectional shape of the water passage 16 is a shape in which the width dimension gradually increases from the upper end to the lower end, the clogging is less likely to occur and the intended role can be effectively exhibited. it can. There is no particular numerical limitation on the lower end width w22 of the water passage hole 16. However, if the lower end width w22 is increased as much as possible, the clogging can be made more difficult to occur.

[Design concept related to the upper end width w11 of the water guide groove 15]
The upper limit value of the upper end width w11 of the water guide groove 15 is 20 mm, and the design concept thereof is the same as that described for the upper limit value of the upper end width w21 of the water passage hole 16. The lower limit value of the upper end width w11 of the water guide groove 15 is not particularly limited. However, if the upper end width w11 of the water guide groove 15 is different from the upper end width w21 of the water passage hole 16, a step is formed between them. Since the aesthetic appearance of the upper surface 11a of the plate portion 11 is also greatly reduced, the aesthetic appearance of the upper surface 11a of the top plate portion 11 is emphasized here, and the upper end width w11 of the water guide groove 15 is made to coincide with the upper end width w21 of the water hole 16. .

  Therefore, if the upper end width w11 of the water guide groove 15 is set within the same range of 12 to 20 mm as the upper end width w21 of the water hole 16, even when a vehicle such as a bicycle, a wheelchair or a baby carriage travels on the block 10, The possibility that the vehicle tire fits into the water guide groove 15 can be avoided, and the running safety on the water channel constructed by the block 10 can be improved. Further, by making the upper end width w11 of the water guide groove 15 coincide with the upper end width w21 of the water hole 16, the appearance of the upper surface 11a of the top plate portion 11 can be improved.

[Design concept related to length L2 of water guide groove 15]
The design concept related to the length L2 of the water guide groove 15 is relatively the same as the design concept related to the length L3 of the water passage hole 16 described above, and the added value of the length L2 of the four water guide grooves 15 A preferable range of (4 × L2) is 8 to 19% of the length L1 of the block 10.

  Therefore, if the addition value (4 × L2) of the length L2 of the four water guide grooves 15 is determined within the range of 8 to 19% of the length L1 of the block 10, the top plate portion 11 is caused by the load in the normal range. It is possible to prevent the occurrence of cracks, defects, etc., and to improve the uptake of rainwater and the like through the water passage holes 16.

[Design concept related to longitudinal section of water guide groove 15]
As described above, the role of the water guide groove 15 is to guide rainwater or the like to the water hole 16, but if the upper end width w11 and the lower end width w12 are the same, the rainwater or the like that has entered the water guide groove 15 is transferred to the water guide groove. 15 may stagnate.

  However, when the longitudinal cross-sectional shape of the water guide groove 15 is a shape in which the width dimension gradually decreases from the upper end to the lower end, the fluidity in the water guide groove 15 is increased, and rainwater and the like entering the water guide groove 15 is effectively removed. It can be led to the water passage hole 16.

  In the above-described embodiment, the flow channel 14 is configured as the block 10 by the space surrounded by the top plate portion 11, the left and right side wall portions 12, 12 and the bottom plate portion 13. Even if the present invention is applied to a block or the like having an inverted U-shaped longitudinal section and having only a side wall portion and no bottom plate portion, the same effect as described above can be obtained.

  In the above-described embodiment, the top surface 11a of the top plate portion 11 has a V-shaped vertical cross section, but the same water collecting ability can be obtained even if a bow shape is used as the vertical cross section of the top plate portion. can get. Of course, when the water collecting ability is not given to the upper surface of the top plate portion, the upper surface may be flat.

  Furthermore, in the above-described embodiment, a total of four water guide grooves 15 are provided on the top surface 11a of the top plate portion, and a total of three water flow holes 16 reaching the flow channel 14 are provided between the adjacent water guide grooves 15 respectively. Although the thing was shown as the block 10, even when the number of the water guide grooves 15 is n (n is an integer of 2, 3, 5 or more) and the number of the water passage holes 16 is n−1, it is described above. If the design concept relating to the upper end width w21, length L3 and longitudinal section of the water passage hole 16 and the design concept relating to the upper end width w11, length L2 and longitudinal section of the water guide groove 15 are adopted, the same effect as described above. Can be obtained.

  Furthermore, although the above-mentioned embodiment showed the specific example of the dimension of the block 10 with reference to FIGS. 3-5, each design which concerns on the upper end width w21 of the water flow hole 16, length L3, and a longitudinal cross-sectional shape. Other dimensions (the length L1 of the block 10, the width W1 of the top plate 11, the left and right sides of the top plate 11) as long as the idea and the design widths related to the upper end width w11, the length L2 and the longitudinal section are satisfied. The width W2 of the side walls 12 and 12, the width W3 of the flowing water channel 14, the inclination angle θ of the upper surface 11a of the top plate portion 11, the height T1 of the block 10, the height T2 of the flowing water channel 14, and the central portion of the top plate portion 11 Even if the thickness t1, the lower end width w12 of each water guide groove 15, and the lower end width w22 of each water passage hole 16 are changed to values other than the exemplified values, the same operational effects as described above can be obtained.

It is a perspective view of the block for waterway construction which shows one embodiment of the present invention. It is the longitudinal cross-sectional view which fractured | ruptured the block shown in FIG. 1 by the plane containing a water conveyance groove | channel, and the longitudinal cross-sectional view fractured | ruptured by the plane containing a water passage hole shown in FIG. FIG. 2 is a dimensional diagram of the block shown in FIG. 1. FIG. 2 is a dimensional diagram of the block shown in FIG. 1. FIG. 2 is a dimensional diagram of the block shown in FIG. 1.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Block, 11 ... Top plate part, 11a ... Top surface of top plate part, 12 ... Left and right side wall part, 13 ... Bottom plate part, 14 ... Flow channel, 15 ... Water channel, 16 ... Water passage hole, L1 ... Length of block L2: length of water guide groove, L3: length of water passage hole, W1: width of top plate portion, W2: width of left and right side walls, W3: width of water channel, T1: height of block, T2 The height of the water channel, t1, the center thickness of the top plate, w11, the upper end width of the water guide groove, w22, the lower end width of the water guide groove, w21, the upper end width of the water passage hole.

Claims (3)

A block for building a water channel comprising at least a top plate portion and left and right side wall portions, and having at least one water passage hole leading to a water channel on the upper surface of the top plate portion,
The upper end width of the water passage hole is in the range of 12 to 20 mm,
A block for waterway construction. The water passage hole has a longitudinal sectional shape in which the width dimension gradually increases from the upper end toward the lower end.
The block for waterway construction according to claim 1 characterized by things. There are water guide grooves at both ends in the length direction of the water passage holes on the top surface of the top plate part,
The upper end width of each water guide groove coincides with the upper end width of the water passage hole, and each water guide groove has a longitudinal sectional shape in which the width dimension gradually decreases from the upper end to the lower end.
The block for waterway construction according to claim 1 or 2 characterized by things.

Images