JP6206720B2 - Paving tools made of granular materials - Google Patents

Description

  The present invention relates to a pavement tool using granular materials for paving a garden, a parking lot, an approach road, a sidewalk, or the like using granular materials such as gravel and ball gravel.

  Conventionally, paving tools using granular materials such as gravel and ball gravel have been proposed and marketed. For example, FIG. 11 shows an example of a paving tool that has been commercially available, (a) is a perspective view showing the whole, and (b) is an enlarged perspective view of a part thereof. In the pavement tool shown in FIG. 11, a plurality of planar circular cylindrical bodies 11 having a predetermined height so that gravel or the like is disposed and filled in a predetermined amount are planarly viewed at a predetermined pitch. They are arranged in a grid pattern as a whole in the vertical and horizontal directions. Moreover, as shown in the drawing, the plane is between the outer peripheral wall surface 11a of each cylindrical body 11 and the outer peripheral wall surface 11a of each of the other cylindrical bodies 11 adjacent to each other in the vertical direction in the figure (the respective cylindrical body A standing partition wall 12 is interposed (to a height close to 11). Adjacent ones of the cylindrical bodies 11 are connected and fixed to each other by the partition walls 12. Further, a thin rod-like body 13 extending in a direction inclined by 45 degrees in a plan view with respect to the lattice-like vertical and horizontal directions in which the respective cylindrical bodies 11 are arranged is provided in each cylindrical body 11. On the other hand, it fixes so that each lower end part (bottom part) of each said cylindrical body 11 may be penetrated, and the mutual fixation of each said cylindrical body 11 is reinforced by this. In FIG. 11, reference numerals 14a and 14b denote joints for connecting a plurality of paving tools to each other.

Japanese Patent No. 3796382 Japanese Patent No. 3851473

  In the conventional paving tool as described above, as shown in FIG. 11, the cylindrical bodies 11 on which gravel and the like can be arranged are arranged in a straight line in the vertical direction and the horizontal direction in plan view. Therefore, when the plurality of cylindrical bodies 11 are arranged in an exposed state on the ground, the arrangement of the members (particularly the plurality of cylindrical bodies 11) constituting the paving tool is a linear monotonous pattern. There was a problem of becoming.

  Moreover, in the conventional pavement tools as described above, the partition wall 12 is used as a member for connecting and fixing adjacent ones of the cylindrical bodies 11 to each other. As shown in FIG. 2, each cylindrical body 11 and each partition wall are arranged in a state of being set up in the illustrated vertical direction orthogonal to the ground plane direction (horizontal direction) in which the cylindrical bodies 11 are arranged. 12 had a hard structure that cannot be bent with respect to the ground plane direction. Therefore, when using a conventional paving tool having a hard structure that cannot be bent with respect to the ground plane direction, it is necessary to install the pavement after leveling the ground surface to the horizontal plane. There is a problem in that it cannot be placed on difficult ground or artificially undulated ground, or even if it is placed, a gap is formed and it sways up and down and stable pavement cannot be achieved.

  Further, in the conventional paving tool as described above, as shown in FIG. 11, gravel or the like is arranged inside each cylindrical body 11, but this cylindrical body 11 has a bottom side ( Since the ground side) is in an open state (cylinder removal state) that does not exist except for the thin rod-like body 13, even if gravel or the like is put in each of the tubular bodies 11, As a result of being able to easily drop off gravel, etc., when an external force is applied to the pavement tool after installation on the ground, there is a problem that the entire pavement tool is easily lifted or displaced from the ground surface.

  Furthermore, in the conventional pavement tools as described above, a plurality of pavement tools are arranged and adjacent to each other are connected to each other by joints 14a and 14b. However, there is a problem that the efficiency of the paving work is lowered.

  The present invention has been made paying attention to such problems of the prior art, and even when a part of a paving tool is exposed on the ground, it is possible to display an interesting pattern that is not monotonous on the ground. It aims at providing the paving tool which can do. Further, in the present invention, when a plurality of paving tools are installed adjacent to each other, each paving tool is displaced in the plane direction (the direction in which the edge of each paving tool extends) with respect to the other paving tools. An object of the present invention is to provide a paving tool that can prevent the above. Another object of the present invention is to provide a paving tool that can be stably placed on a curved ground that is difficult to level on a horizontal plane or a ground that has been artificially undulated. Another object of the present invention is to provide a paving tool that does not easily cause the entire paving tool to be displaced in the upward or horizontal direction even when an external force is applied to the paving tool after being installed on the ground. To do. It is another object of the present invention to provide a paving tool that can simplify and increase the efficiency of the connection work between the paving tools.

  The pavement tool made of granular material according to the present invention for solving the above-described problems is provided with a plurality of surrounding portions that are arranged with granular materials such as gravel or jade gravel inside to suppress the movement of the granular materials in the ground plane direction. The plurality of surrounding parts arranged so as to be arranged in the vertical direction and the horizontal direction in a plan view and the surrounding parts adjacent to each other with a predetermined interval between the surrounding parts in a plan view. And connecting portions that are connected and fixed so as to be arranged in a curved shape or a wave shape such as a substantially convex shape, a substantially concave shape, or a substantially S shape as a whole in the vertical direction and the horizontal direction. Each edge of the four-way outer periphery of the entire paving tool connected by the connecting portion is formed in a curved shape or a wave shape such as a substantially convex shape, a substantially concave shape, or a substantially S shape as a whole. Is.

  Moreover, in the paving tool made of granular materials according to the present invention, the connecting portion is formed of a flexible material, and is configured by a substantially flat plate having a thickness of about 1 to 7 mm. It is desirable that the lower end portions of the surrounding portions are connected and fixed to each other in a state of being arranged so as to be substantially parallel to the planar direction.

  Moreover, in the paving tool made of granular material according to the present invention, one or a plurality of protrusions that protrude upward (upward when the paving tool is disposed on the ground) are formed on the upper surface of each connecting portion. It is desirable.

  Further, in the paving tool made of granular material according to the present invention, the protrusion has an oval shape in which the cross section in the ground plane direction has a longitudinal direction extending from the edge of each surrounding portion facing each other via the connecting portion. In addition, it is desirable to be formed in an elliptical shape or a substantially rectangular shape.

  Moreover, in the paving tool made of a granular material according to the present invention, the surrounding portion includes a flat contact portion that is a contact portion with which the granular material abuts and covers at least a part of the bottom portion. You may make it.

  Furthermore, in the paving tool made of granular material according to the present invention, connecting pieces for connecting to other paving tools are respectively provided outwardly at the lower ends of the surrounding parts constituting the outer peripheral edge of the paving tool. Each of the connecting pieces is protruded, and a convex portion or a concave portion is formed on an upper surface or a lower surface of each connecting piece, and the convex portion or the concave portion is a lower end portion of each surrounding portion constituting an outer peripheral edge portion of another paving tool. It may be possible to fit and fix between a concave portion or a convex portion respectively formed on the lower surface or the upper surface of the connecting piece projecting from the upper surface.

  In the present invention, as described above, the connecting portions are connected and fixed to each other so that the surrounding portions are arranged in a curved or wavy shape such as a generally convex shape, a generally concave shape, or a substantially S shape as a whole. Therefore, even when a part of the paving tool is exposed on the ground, a curved or wavy interesting pattern that is not monotonous can be displayed on the ground.

  Further, in the present invention, as described above, as a result of the connecting portions connecting and fixing the surrounding portions so as to be arranged in a curved shape or a wave shape, the pavement including the surrounding portions and the connecting portions is provided. Each edge of the outer periphery of the four sides of the tool is also formed in a curved shape or a wave shape such as a substantially convex shape, a substantially concave shape, or a substantially S shape as a whole. Therefore, according to the present invention, when the paving tools are arranged so as to be arranged in the vertical and horizontal directions while being adjacent to each other on the ground, the adjacent outer peripheral edges of the paving tools are substantially convex as a whole, Since it has a substantially concave shape, a curved shape such as a substantially S shape, or a wave shape, each paving tool is flat between other paving tools as in the case where the conventional interlocking blocks are installed adjacent to each other. It is possible to prevent displacement in the direction (direction in which the edge of each paving tool extends). That is, when each edge of the pavement tool is formed in a straight line shape, one pavement tool may be misaligned in the direction in which the edge extends with respect to other adjacent pavement tools. When each edge of the paving tool is formed in a curved shape or a wave shape as in the present invention, the curved or wavy uneven shape of the adjacent peripheral edges of each paving tool is the same as each paving tool. Since it acts so as to prevent displacement of the outer peripheral edge in the extending direction, it is effective that one paving tool is displaced in the direction in which the outer peripheral edge extends with respect to the other adjacent pavement. Will be prevented.

  Further, in the present invention, the connecting portion that connects the lower ends of the adjacent surrounding portions to each other is a substantially flat member formed of a flexible material that can be bent, and has a thickness of about 1 to 1. When it is configured by a substantially flat plate member that is arranged so that its plane is approximately parallel to the direction in which the surrounding portions are arranged at 7 mm, each connecting portion is located on both sides of each connecting portion. As a result that the upper surface side or the lower surface side of each of the two surrounding portions (which are opposed to each other via each connecting portion) can be bent in a direction to face each other, the paving tool as a whole also has a certain degree along the shape of the ground surface. It can be bent flexibly. Therefore, according to the present invention, each paving tool is adjusted to the topography on the ground that is difficult to level to the horizontal surface, on the ground that has been artificially undulated, or on the ground with a cornered topography. The pavement can be satisfactorily paved in a state of being curved and in close contact with the ground surface.

  Further, in the present invention, one or a plurality of protrusions projecting upward (upward when the paving tool is disposed on the ground) on the upper surface of the connecting portion that connects the lower ends of the adjacent surrounding portions to each other. When the projections are formed, the protrusions obstruct the movement of the granular materials on the connecting portion in the ground plane direction, so that the granular materials arranged on the connecting portions are ground planes. It becomes possible to prevent moving in the direction easily.

  Further, in the present invention, the protrusion has an oblong shape whose longitudinal direction is a direction in which the edges of the surrounding portions extend in a cross section in the ground plane direction that are adjacent to each other (opposing each other via the connecting portion). When formed so as to have a shape, an elliptical shape, or a substantially rectangular shape, the connecting portion is bent (in the direction in which the connecting portions are opposed to each other on the bottom surface side or the upper surface side of the adjacent surrounding portions. It is possible to prevent the bending operation) from being hindered by the protrusion. That is, when the protrusion is formed to have an oval shape, an elliptical shape, or a substantially rectangular shape whose longitudinal direction is a direction substantially orthogonal to the direction in which the edge of each surrounding portion whose cross sections are adjacent to each other extends In addition, the presence of the protrusions hinders the bending operation of the connecting portion. As in the present invention, the long circle whose longitudinal direction is the direction in which the edges of the surrounding portions of the protrusions extend adjacent to each other. When formed so as to have a shape, an elliptical shape, or a substantially rectangular shape, the bending operation of the connecting portion is not hindered by the presence of the protrusion.

  Further, in the present invention, when a flat plate-like contact portion with which the granular material comes into contact is provided on the bottom side (underground side) of each of the surrounding portions, a paving tool is placed on the ground and the inside of each of the surrounding portions. After the granular material is put in, the granular material in each of the surrounding portions is in a state of constantly pressing the contact portion (and the surrounding portion fixed thereto) in the direction of gravity, so that external force is applied to the paving tool. However, it becomes possible to prevent the paving tool from being easily lifted or displaced from the ground surface.

  Furthermore, in the present invention, a connecting piece in which a convex part or a concave part is formed on the upper or lower surface of the outer peripheral edge of the entire paving tool, and the lower or upper surface of the connecting piece of the outer peripheral edge of another paving tool. When the recesses or projections formed in are provided with connecting pieces that can be fitted into their own projections or recesses, the recesses and projections of the respective connecting pieces at the outer peripheral edge of each paving tool adjacent to each other. Since the connection / connection work between the paving tools can be completed simply by fitting them together, the connection / connection work between the paving tools can be greatly simplified and made efficient.

It is a fragmentary perspective view which expands and shows a part of pavement tool which concerns on Embodiment 1 of this invention. It is a perspective view which shows the whole paving tool of this Embodiment 1. FIG. (A) is a top view of this Embodiment 1, (b) is the side view. It is a perspective view for demonstrating the structure of the connection piece of this Embodiment 1, (a) is a perspective view which shows the upper surface side (front side) of a paving tool, (b) is a perspective view which shows the lower surface side (back side) of a paving tool. FIG. It is a perspective view for demonstrating the operation | movement which connects the two pavement tools which concern on this Embodiment 1 mutually. It is a perspective view which shows the state which connected the two pavement tools which concern on this Embodiment 1 mutually. It is a perspective view which shows the prototype of each pavement tool which concerns on this Embodiment 1. FIG. It is a perspective view which shows the prototype of FIG. 7 from another angle. It is a perspective view which shows Embodiment 2 of this invention, (a) is a figure which shows front side, (b) is a figure which shows a back side. It is a figure for demonstrating the state by which each pavement tool was connected in this Embodiment 2. FIG. It is a perspective view which shows the conventional paving tool.

[First Embodiment]
Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is an enlarged partial perspective view showing a part of a paving tool according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing the entire paving tool of Embodiment 1, and FIG. 1 is a plan view, and FIG.

  1 to 3, reference numeral 1 denotes a planar substantially square-shaped rectangular tube (enclosed portion) having a predetermined height so that granular materials such as gravel and gravel can be disposed therein, and 2 denotes the rectangular tubes 1. The substantially flat connecting portions 3a and 3b for connecting and fixing adjacent members to each other at a predetermined interval are arranged on the connecting portions 2 and extend upward in the figure. A substantially flat abutting portion 5 arranged along the planar direction at the bottom, 5 is a drain hole formed in the bottom of the rectangular tube 1, such as rainwater that has entered the rectangular tube 1. A drain hole 10 for allowing water to pass through the ground is a paving tool constituted by the square cylinders 1, the connecting portions 2, and the like.

  In this Embodiment 1, the said connection part 2 connects and fixes mutually the lower end parts (bottom part vicinity part) of each said square cylinder 1 adjacent to each other. And the said connection part 2 is arrange | positioned so that the plane may become substantially parallel to the direction (direction of a ground plane) where the said square cylinders 1 are arranged. The connecting portion 2 is formed in a substantially flat plate shape having a thickness of about 1 to 7 mm, for example, 2 to 5 mm, and for example, a flexible resin such as PP (polypropylene), epoxy resin, or olefin resin. It is made of material. With such a configuration, the connecting portion 2 is bendable and bendable to some extent in a direction in which the bottom surface side or the top surface side of the two rectangular cylinders 1 connected to each other tend to face each other. Therefore, the paving tool 10 as a whole constituted by the connecting portions 2 and the like is also formed to be curved to some extent as a whole along the undulating shape of the ground surface to be installed.

  Further, the abutting portion 4 is constituted by a flat plate disposed at the approximate center of the bottom of each rectangular tube 1. The abutment portion 4 makes the granular material placed in the rectangular cylinders 1 abut on its upper surface so that the granular material can be easily moved downward (ground) from the bottom side of the rectangular cylinders 1. It is intended to prevent movement and dropout in the middle direction. The drain holes 5 are respectively formed on both sides of the abutting portion 4 at the bottom of each square tube 1. The drain holes 5 are for allowing water such as rainwater that has entered the square cylinders 1 to easily move and drain into the ground.

  1-3, 6a, 6b is from the lower end part (bottom part vicinity part) of each square cylinder 1 located in the outer periphery part of the four sides of the said paving tool 10 whole in each said square cylinder 1. As shown in FIG. It is the connection piece which protrudes in the outer side direction (ground plane direction) of the pavement tool 10. As shown in FIGS. 1-3, in this Embodiment 1, the connection piece 6a in which the protrusion 3b is not formed in the upper surface, and the connection piece 6b in which the protrusion 3b is formed in the upper surface are the said pavement. Along the four outer peripheral edges of the entire tool 10, each square tube 1 is alternately formed and arranged. Although not shown in FIGS. 1 to 3, a protrusion (reference numeral 7a in FIG. 4 described later) is formed on the upper surface of the connecting piece 6a on which the protrusion 3b is not formed, and a protrusion 3b is formed on the upper surface. A convex portion (reference numeral 7b in FIG. 4 described later) is formed on the lower surface of the connecting piece 6b.

  In the first embodiment, as shown in FIGS. 1 to 3, the rectangular tube 1 has a substantially square corner that is open on the top so that granular materials such as gravel can be placed and filled therein. It is formed in a cylindrical shape. The plurality of rectangular cylinders 1 are generally in a lattice shape in the vertical and horizontal directions in plan view (however, the arrangement of the rectangular cylinders 1 is not linear but curved or waved) B) are fixed to each other by the connecting portion 2 in a state of being arranged at a predetermined interval. As a result, the paving tool 10 constituted by these also has a substantially square shape as a whole (however, the outer peripheral edge of the paving tool 10 is not linear but curved or corrugated).

  Moreover, as shown in FIGS. 1-3, the said connection part 2 connects the lower end parts of two corner | angular parts 1a in four each corner | angular parts (corner part) 1a of each square cylinder 1 which mutually opposes, They are connected to each other. That is, the connecting portion 2 connects the adjacent rectangular tube bodies 1 to each other two corner portions (the other square tube bodies in the four corner portions in total for one square tube body 1. The two lower ends of the two corner portions 1a facing 1 are connected to each other so as to be connected and fixed to each other.

  Moreover, the said protrusion 3a or 3b is each formed in the approximate center part on the said connection part 2 as shown in FIGS. 1-3. Each of the protrusions 3a and 3b has an oblong shape in which the cross section in the illustrated horizontal direction has a longitudinal direction extending from each edge of the outer peripheral surface of the two rectangular cylinders 1 facing each other via the connecting portion 2. It is formed so as to have a shape.

  Further, as described above, the bottom portion of the rectangular tube 1 makes the granular material in the rectangular tube 1 abut on itself so that the granular material does not easily fall down from the bottom. 4 and a drain hole 5 that allows water such as rain water that has entered the rectangular tube 1 to easily pass into the ground (downward). In the first embodiment, the rectangular tube body (enclosed portion) 1, the connecting portion 2, the protrusions 3a and 3b, the contact portion 4 and the like are integrally formed of the flexible resin material or the like. Yes.

  Next, FIGS. 4A and 4B are perspective views for explaining the configuration of the connecting pieces 6a and 6b of the first embodiment, and FIG. 4A shows the upper surface side (front side) of the paving tool 10. FIG. FIG. 4B is a perspective view showing the lower surface side (back side) of the paving tool 10. In the first embodiment, as described above, in each of the square cylinders 1, each square cylinder 1 constituting the outer peripheral edge of the four sides of the paving tool 10 as a whole protrudes outward from its lower end. Connecting pieces 6a and 6b are formed.

  As shown in FIG. 4 (a), the connecting piece 6a has a convex portion 7a formed at the approximate center of the upper surface side (front side), and as shown in FIG. There are two types, a connecting piece 6b in which a recess 7b is formed in the approximate center of the lower surface side (back side). As shown in FIG. 4, these two types of connecting pieces 6a and 6b are alternately formed for each square tube 1 along the outer peripheral edge of the paving tool 10 as a whole (FIG. 5). See also). And the convex part 7a of each said connection piece 6a and the recessed part 7b of each said connection piece 6b can be engage | inserted from the upper and lower sides in the state mutually aligned.

  Next, FIG.5 and FIG.6 is a perspective view for demonstrating the operation | movement which connects the two pavement tools 10a and 10b which concern on this Embodiment 1 mutually. 5 and 6, the convex portions 7a and the concave portions 7b shown in FIG. 4 are not shown.

  As shown in FIG. 5, in the pavement tools 10 a and 10 b according to the first embodiment, the connecting portion 2 is arranged in a state where the respective rectangular cylinders 1 are arranged in a wavy shape (or a curved shape) in the illustrated vertical and horizontal directions. As a result of the connection, the four outer peripheral edge portions on the four sides of the paving tools 10a and 10b as a whole are each wavy (or curved). And since each pavement tool 10a, 10b has the same wavy shape (or curvilinear shape) as a whole, the edge part which mutually adjoins can mutually connect and connect. In the first embodiment, the paving tools 10a and 10b are, for example, formed with a size of about 50 cm in the vertical and horizontal directions as a whole.

  As shown in FIG. 5, in the pavement tools 10 a and 10 b according to the first embodiment, the two types of connecting pieces 6 a and 6 b are connected to the square cylinders 1 along the outer peripheral edge from the square cylinders 1 to the outer side. Each body 1 protrudes alternately. In the first embodiment, the two kinds of connecting pieces of the one pavement tool 10a shown in FIG. 5 at the upper edge and the lower edge in the figure and the left edge and the right edge in the figure opposite to each other. 6a and 6b are arranged so as to be opposite to each other (that is, the arrangement of the two kinds of connecting pieces 6a and 6b on the left or lower edge of the paving tool 10a is downward from the upper side in the figure. If the order is 6b, 6a, 6b, 6a,... Or from left to right, the arrangement of the two types of connecting pieces 6a, 6b on the right or upper edge of the pavement tool 10a is shown. Are arranged in the order of 6a, 6b, 6a, 6b... Reversed from the upper side to the lower side or from the left side to the right side in the drawing). The same applies to the other illustrated pavement tool 10b.

  Therefore, in this Embodiment 1, as shown in FIG. 5, when each edge part of the adjacent pavement tools 10a and 10b is brought close to each other, each connecting piece 6a constituting the same waved (or curved) edge part as a whole. 6b face each other and can be combined with each other, and the projections 7a and the recesses 7b (see FIG. 4) can be fitted to each other. Therefore, in FIG. 5, the connection pieces (6b, 6a,... Arranged in the order of 6b, 6a,. Piece) and the connecting pieces (each connecting piece arranged in the order of 6a, 6b,..., From the upper side to the lower side) of the paving tool 10b on the right side in the drawing are connected and fixed to each other. (The respective convex portions 7a and the respective concave portions 7b are fitted into each other), whereby the paving tools 10a and 10b are also connected and fixed to each other. FIG. 6 shows the paving tools 10a and 10b after being connected and fixed in this manner. 5 and 6 show only two pavement tools 10a and 10b, but in actual pavement construction, dozens or hundreds depending on the size of the ground surface on which these pavement tools 10a and 10b are arranged. Individual paving tools are connected to each other in the same manner as described above.

  7 and 8 are perspective views showing prototypes of the paving tools 10a and 10b. In the example shown in FIGS. 7 and 8, the protrusions 3b (see FIGS. 1 to 6 and the like), the protrusions 7a, and the recesses on the connecting pieces 6b disposed on the outer peripheral edge portions of the paving tools 10a and 10b. 7b (see FIG. 4) and the like are omitted.

  As described above, according to the first embodiment, the connecting portion 2 connects and fixes the respective rectangular tube bodies 1 so that they are arranged in a generally S-shaped curve or wave shape as a whole. Therefore, by installing the pavement tool according to the first embodiment on the ground, a curvilinear or wavy interesting appearance different from a conventional monotonous pattern is given to a garden, a parking lot, a sidewalk, etc. Will be able to.

  Further, according to the first embodiment, the connecting portions 2 connect the square cylinders 1 to each other so as to be arranged in a curved shape or a wave shape, and from the square cylinders 1 and the connection portions 2, respectively. As a result of the fact that each edge of the four-sided outer periphery of the pavement tool 10 is formed in a curved shape or a wave shape as a whole, the pavement tool 10 is arranged in the vertical and horizontal directions in plan view while adjoining each other on the ground When arranged in this manner, the adjacent edges of each paving tool 10 are generally S-shaped curved or corrugated as a whole, so that it is the same as when conventional interlocking blocks are installed adjacent to each other. In addition, each pavement tool 10a is prevented from being easily displaced in the ground plane direction (the direction in which the edge of each pavement tool 10 extends) with respect to the other pavement tool 10b.

  Moreover, in this Embodiment 1, the connection part 2 which mutually connects the lower end part of each said adjacent square cylinder 1 consists of a flexible material, thickness is about 1-7 mm, and a plane is the said As a result of constituting with the substantially flat plate-like member arranged so as to be substantially parallel to the direction in which each square tube 1 is arranged, each connecting portion 2 of each paving tool 10 located on both sides thereof is provided. The upper surface side or the lower surface side can be flexibly bent in a direction in which they face each other, and the paving tool can be bent or bent to some extent as a whole. Therefore, according to the first embodiment, each pavement tool 10 can be laid in close contact with a gap even on an uneven ground surface that is difficult to level on a horizontal plane, and artificially undulated ground is provided. Even on the ground having top and corners, it is possible to perform good pavement with each paving tool 10 in close contact with the ground surface by curving each paving tool 10 according to the topography.

  Further, in the first embodiment, the projection 3a extending upward (upward when the paving tool 10 is disposed on the ground) to the connecting portion 2 that connects the lower end portions of the adjacent rectangular cylinders 1 to each other. , 3b, the projections 3a, 3b obstruct the movement of the granular material on the connecting portion 2 in the ground plane direction. Therefore, the flat connecting portion 2 It can prevent that the granular material arrange | positioned above moves to a ground plane direction easily.

  In the first embodiment, the projections 3a and 3b have a longitudinal direction in which the cross section in the ground plane direction extends from the edge of each rectangular tube 1 adjacent to each other via the connecting portion 2. Since it is formed to have an oval shape, the bending operation of the connecting portion 2 (the upper surface side or the lower surface side of each pavement tool 10 adjacent to each other via the connecting portion 2 of the connecting portion 2 tends to face each other. (Bending movement in the direction) can be prevented from being hindered by the protrusions 3a and 3b. That is, the projections 3a and 3b have an oval shape in which the cross section has a longitudinal direction in a direction substantially orthogonal to the direction in which the edge of each rectangular tube 1 adjacent to each other via the connecting portion 2 extends. When formed as described above, the protrusions 3a and 3b prevent the connecting portion 2 from being bent. However, as in the first embodiment, the protrusions 3a and 3b have a cross-section that is the connecting portion 2. When the rectangular tube body 1 adjacent to each other is formed so as to have an elongated round shape whose longitudinal direction is the direction in which the edge portions of the respective rectangular tube bodies 1 extend, the bending operation of the connecting portion 2 is hindered by the protrusions 3a and 3b. There is nothing.

  Further, in the first embodiment, when the flat plate-like contact portion 4 with which the granular material comes into contact with the bottom side (underground side) of each square tube 1 is provided, After the pavement tool 10 is placed on the ground with the granular material placed in the ground, the granular material in each of the rectangular tubes 1 causes the abutting portion 4 (and the rectangular tube 1 fixed thereto) to move in the direction of gravity. Since the state is always pressed, even if an external force is applied to the paving tool 10, the entire paving tool 10 is prevented from being easily lifted or displaced from the ground surface.

  Furthermore, in this Embodiment 1, it is connection piece 6b, 6a by which the convex part 7a or the recessed part 7b is formed in the outer peripheral edge part of the said pavement tool 10a on the upper surface or the lower surface, Comprising: Out of other pavement tools 10b When the connection pieces 6b and 6a that can be fitted with the concave portions 7b or the convex portions 7a formed on the lower surface or the upper surface of the connection pieces 6a and 6b at the peripheral portion are provided, the pavement tools 10a and 10b adjacent to each other are provided. Since the connecting operation between the paving tools 10a and 10b can be completed only by fitting the convex portions 7a and the concave portions 7b of the connecting pieces 6a and 6b on the outer peripheral edge, the connecting operation between the paving tools 10a and 10b. Can be made extremely simple and efficient.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 9 is a perspective view showing a pavement tool 20a according to the second embodiment, and FIGS. Since the basic configuration of the second embodiment is the same as that of the first embodiment, different parts will be mainly described below, and the common parts are denoted by the same reference numerals in FIGS. To do.

  As shown in FIG. 9, in the second embodiment, the plurality of rectangular cylinders 1 are arranged in a substantially S-shaped curved or wavy shape in the vertical and horizontal directions in a plan view. They are connected and connected to each other by a substantially flat connecting portion 22 having an area covering substantially the whole.

  In the first embodiment, as described above with reference to FIG. 1 and the like, the connecting portion 2 is configured by an elongated flat plate-like member that connects the corner portions (corner portions) 1a of the lower end portions of the respective rectangular tube bodies 1. In the second embodiment, as shown in FIG. 9, the connecting portion 22 is formed by a flat plate member (a flat plate member that covers the entire bottom portion of the large number of rectangular tube bodies 1) that connects the entire lower end portions of the rectangular tube bodies 1 to each other. To make up.

  In the second embodiment, a flat plate member that covers the bottom of each rectangular tube 1 is disposed, and the contact portion 24 is configured by the flat plate member. The abutting portion 24 abuts itself on the granular material arranged in each of the square cylinders 1 so that the self and the rectangular cylinder 1 are always pushed in the underground direction by the granular material. This is to prevent the pavement tool 10a from being easily lifted or displaced from the ground surface. In the second embodiment, the contact portion 24 is formed by one flat plate member that is continuous with the connecting portion 22.

  In the second embodiment, a drain hole 25 (having a diameter of 20 mm, for example) is formed in a part of the bottom of each square tube 1 for allowing water that has entered the square tube 1 to pass through the ground. Like to do. Further, the same drain hole 25 is formed in the connecting portion 22 at a predetermined interval.

  Furthermore, in this Embodiment 2, the connection piece 26 for connecting with the other pavement tool 20b protrudes outward from the outer peripheral surface lower end part of each square cylinder 1 which comprises the four corners of the pavement tool 10a. I am doing so. The connecting piece 26 has a hole 26a (diameter is 8.5 mm, for example) into which a nail can be inserted at the center. When connecting to another paving tool 20b, the connecting pieces 26 of the paving tools 20a and 20b are vertically opposed to each other, for example, a 5-inch nail is inserted into the hole 26a and fixed to the ground. Yes. FIG. 10 shows a state in which two paving tools 20a and 20b are connected in this way.

  Since it was configured as described above, the paving tools 20a and 20b according to the second embodiment can create a curvy or wavy interesting pattern when installed on the ground as in the first embodiment. Since the connecting portions 22 that connect the respective rectangular tube bodies 1 can be curved, the lateral displacement between the outer peripheral edges of the paving tools 20a and 20b can be bent, so that the entire paving tools 20a and 20b can be bent to some extent. The paving tools 20a and 20b can easily lift or be displaced from the ground surface because the contact portion 24 is always pushed in the ground by the granular material, which can flexibly deal with unevenness and undulations of the ground surface. Can be prevented, and the connection between the paving tools 20a and 20b can be easily performed using a 5-inch nail or the like (on the other hand, (Embodiment 2 does not include a member corresponding to the protrusions 3a and 3b on the connecting portion 2 in the first embodiment, and therefore, there is no effect of suppressing the movement of the granular material on the connecting portion 22 in the ground plane direction). .

  In addition, about the pavement tool which concerns on the said Embodiment 1, 2, it can manufacture with any method of injection molding and press molding with a flexible resin material etc. In the case of the press molding method, the cost can be reduced by using the waste plastic material.

  The first embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made. For example, in the first embodiment, the surrounding portion into which the granular material is placed is the rectangular tube body 1 whose plane is a substantially square shape. However, the present invention is not limited to this, and for example, a cylindrical body whose plane is a substantially circular shape. Alternatively, it may be a rectangular tube having a substantially hexagonal plane. In the first embodiment, each connecting portion 2 is provided with one protrusion 3a or 3b. However, the present invention is not limited to this, and each connecting portion 2 is provided with a plurality of protrusions. You may make it prepare. In the first embodiment, the protrusions 3a and 3b on the respective connecting portions 2 extend from the edges of the surrounding portions (square tube bodies 1) whose cross sections in the ground plane direction are adjacent to each other via the connecting portions. However, the present invention is not limited to this, and for example, the cross section may be an elliptical shape or a substantially rectangular shape. Moreover, in the said Embodiment 1, the connection between each pavement tool 10a, 10b connects the recessed part 7b and convex part of connection piece 6b, 6a formed for every square cylinder 1 of the edge part of one pavement tool 10a. 7a, and the projections 7a and the recesses 7b of the connecting pieces 6a, 6b formed for each square tube 1 at the edge of the other pavement tool 10b are combined and fitted. However, the present invention is not limited to this. For example, a plurality of paving tools are connected to each other by an insert piece formed for each surrounding part of the edge of one paving tool and each surrounding part of the other paving tool. You may make it carry out by combining with the slit formed in every part, and the said insertion piece can be inserted and pinched and fixed.

1 Square cylinder (go part)
1a Corner (corner)
2,22 Connecting portions 3a, 3b Protrusions 4, 24 Abutting portions 5, 25 Drain holes 6a, 6b Connecting pieces 7a Convex portions 7b Concavities 10, 10a, 10b, 20a, 20b Pavement tool 26a Hole

Claims (6)

A plurality of surrounding portions that are arranged with granular materials such as gravel or ball gravel inside to suppress movement of the granular materials in the ground plane direction, and are arranged so as to be aligned in the vertical direction and the horizontal direction in plan view, respectively. The Go part of
The respective surrounding portions adjacent to each other, and the respective surrounding portions, as a whole, have a convex shape, a concave shape, or an S-shaped curved shape or a wavy shape in a vertical direction and a horizontal direction, respectively, in a plan view through a predetermined interval. And a connecting part for connecting and fixing so as to line up,
The edges of the four-sided outer periphery of the entire paving tool formed by connecting the surrounding portions by the connecting portions are formed in a convex shape, a concave shape, or an S-shaped curved shape or a wave shape as a whole. Pavement tool made of granular material. In claim 1,
The connecting portion is formed of a flexible material, is configured by a substantially flat plate shape having a thickness of 1 to 7 mm, and is arranged so that the flat plate-like plane is substantially parallel to the ground plane direction. A pavement tool made of granular material, characterized in that the lower end portions of the surrounding portions are connected and fixed to each other. In claim 2,
One or a plurality of protrusions that protrude upward (upward when the paving tool is disposed on the ground) are formed on the upper surface of each of the connecting portions.   4. The projection according to claim 3, wherein the cross section in the ground plane direction has an elongated round shape, an elliptical shape, or a substantially rectangular shape whose longitudinal direction is a direction in which edges of the surrounding portions that face each other via the connecting portion extend. A paving tool made of granular material, characterized in that   In any one of Claim 1 to 4, The surrounding part is provided with the flat contact part which is a contact part which a granular material contacts in the bottom, and covers at least a part of the bottom part. A paving tool made of granular materials. 6. A connecting piece for connecting to another paving tool at each of the lower end portions of the surrounding parts constituting the outer peripheral edge of the paving tool. A convex portion or a concave portion is formed on the upper surface or the lower surface of each of the connecting pieces, and the convex portion or the concave portion protrudes from a lower end portion of each surrounding portion of an outer peripheral edge portion of another paving tool. A paving tool made of granular material, which can be fitted and fixed between a concave portion or a convex portion respectively formed on the lower surface or the upper surface of the connected piece.