JP2010163863A - Block for weed prevention - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems of a conventional block that, though there is a configuration in which a cutout rack projects at generally vertical front and rear surfaces of a concrete block for weed prevention, a sufficient effect for the growth of weed is not expected since the block does not have an inclination angle and length which are effective for weed prevention and therefore the improvement thereof is desired. <P>SOLUTION: In this block for weed prevention, a recess formed at least at one end surface which is formed in the longitudinal direction of the block has an opening reaching the upper surface of the block. The recess has an inclined side which can form an inclined joint surface extending toward the bottom at a downward angle of 70°. The end and/or the bottom of the recess is chamfered. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a block for a structure (a structure, a building, a building, etc.) intended for grass protection or the like.

  2. Description of the Related Art Conventionally, for example, on roads, concrete boundary blocks, for example, curbstones (one structure) that partition a boundary between a roadway and a sidewalk, or between a roadway and a median, are installed. In such roads, fluidized pavement materials (on the other side) such as cast-in-place concrete and asphalt are placed on the side walls (wall surfaces) of hardened and dried concrete, and then dried and hardened. Form. Accordingly, the pavement material such as concrete (hereinafter referred to as concrete) is dried and contracted over time (age), and a vertical gap (joint) is generated at the boundary between the boundary block wall surface and the concrete wall surface. This gap is a problem because seeds in the soil existing on the side of the boundary block and under the concrete grow over time, and seeds that have entered the gap with the flow of rainwater and / or rainwater grow over time. And easily become weeds. To explain the mechanism, the seeds that have entered the gap germinate, grow by photosynthesis, and the germinated germs from this seed extend upward through the gap (backlanding property) due to their optical properties, and the roots are bent. On the contrary, it grows and reproduces by extending downward (landward) depending on the nature. The strength of its vitality is a place that everyone recognizes. However, allowing this weed to breed is a problem. For example, various accidents due to delayed detection of vehicles by weeds, traffic troubles, accidents such as falls due to weeds, injuries, etc. are conceivable, and there are actually such serious situations. Therefore, it is a place that everyone recognizes that it is difficult to process weeds. The shoots and / or roots extend at least approximately horizontally. In addition to the boundary block, the block includes a water channel block, a gutter block, a retaining block, an L-shaped block, a wall wall, and the like.

  When other gaps are generated, the following situation can be considered. For example, a similar situation occurs in a gap formed by a concrete body (one structure) and a cast concrete road surface, the same floor surface, etc. (the other structure). In addition, gaps (joints) between concrete (one or the other), or concrete structures such as various waterway blocks, side groove blocks, earth retaining blocks, L-shaped blocks, wall walls (fence blocks), etc. The same situation occurs in the gap between one structure) and the concrete road surface, the same floor surface, etc. (the other structure). Another situation in which the above-described gap occurs is, for example, a gap between structures (one or the other structure) such as an interlocking block or a block.

Conventionally, the following structure is known as a method for preventing such grass propagation. Document (1) is “Concrete Block, Concrete Wall, and Member for Manufacturing Concrete Wall” of JP-A-8-113906. 3 to FIG. 6 of the present invention is a grass protection between a concrete block having a structure shown in FIGS. 3 to 6 and a fluid pavement material such as asphalt or concrete, specifically, substantially vertical front and back surfaces of the concrete block. Use a notch shelf that is formed so that a notch shelf protrudes from the bottom of the slab and is closely attached so as to fill the notch shelf, and pavement material is placed to physically block the generation and growth of weeds. It is grass protection. Reference (2) is a “weed prevention type walkway boundary block” disclosed in Japanese Patent Laid-Open No. 10-82012. The present invention is a configuration in which a cut is provided in the upper side corner on the side of the sidewalk side of the single-sided walkway boundary block, and the side upper end corner on the sidewalk of the sidewalk block and the asphalt pavement of the sidewalk are in close contact with each other It is intended to physically block the generation and growth of weeds from the department. The details are described in [0006]. “We only generate the weeds from the joints by joining the end of the sidewalk asphalt pavement with the cut at the upper corner of the side of the sidewalk. The content is “Prevent”.
Further, the document (3) is “Structure of structure intended for grass prevention and the like and construction method for structure and structure grass prevention” of Japanese Patent Application Laid-Open No. 2004-169544. As shown in each figure, this invention adopts the tip form of the concave part for grass prevention as a detour form with a curved peripheral part, and reliably prevents root growth and growth of roots and buds remaining before construction. Intended for herbicidal protection. Therefore, even if there are joints present in the structure, etc., by specifying the shape of the grass-proof recesses, the function to naturally stop and inhibit the growth based on the refracting properties of the buds and roots It is an epoch-making invention that can achieve herbicide prevention.

JP-A-8-113906 JP-A-10-82012 JP 2004-169544 A

  As described above, the invention of the document (1) has a structure in which notched shelves are formed so as to protrude from the lower part of the substantially vertical front surface and back surface of the concrete block. Therefore, it is difficult to think that a sufficient effect can be expected for weed breeding. In the present invention, as described in [0003] of the specification, drainage holes penetrating the front and back surfaces of the concrete block are provided in order to prevent more rainwater from entering when weeds grow. It is characterized by that. However, since this invention does not disclose a structure for preventing weeds against a notch shelf, there is a problem in expecting a sufficient herbicidal effect.

  As described above, the invention of the above document (2) has a structure that prevents the generation of weeds from the joint portion by joining the end portion of the sidewalk side asphalt pavement with the notch of the side edge of the side surface on the sidewalk side. Therefore, if this joint is opened due to aging, weeds are a problem. The reason is thought to be that the structure for preventing weeding against the cut is not shown.

  In addition, as described above, the invention of Document (3) is an epoch that can be achieved by specifying the shape of the herbicidal recesses, thereby providing herbicidal properties and the like that have the function of inhibiting the refracting properties of the shoots and the roots. Invention. Depending on the shape of the concave portion for preventing grass disclosed in the present invention, it may be difficult to handle the core during molding. Therefore, it is possible to consider improvements such as requiring labor at the time of molding and high costs. And since this invention refers to the block itself, such as a boundary block, and the relationship between this block and a structure, the utilization field which is not utilized is mentioned.

  In view of the above, the present invention provides a projecting or recessed inclined side having a length of at least 5 cm or more with a downward angle in the range of approximately 70 ° on the end face in the longitudinal direction of the mold used for constructing the concrete structure. Then, using this formwork, the inclined side having a length of at least 5 cm that is in the range of about 70 ° is projected or recessed in the cast concrete, and the projected or recessed inclined side is Adjacent cast concrete is constructed so as to be concealed, and an inclined joint surface corresponding to an inclined side having a length of at least 5 cm, which is in the range of about 70 °, is formed on the joint surface of both concretes. Since this inclined joint surface has a length of at least about 5 cm at about 70 °, it is possible to reliably prevent the growth of the roots (buds) of the flying seeds and the growth of the roots and buds remaining before construction. This inclined joint surface has a tip form in any structure with a detoured shape with a curved peripheral part, and prevents grass growth and the like that can reliably prevent root growth and root and bud growth remaining before construction. Can provide the intended block.

  Further, the present invention is most characterized by an inclined joint corresponding to an inclined side having a length of at least 5 cm or more that is in a range of about 70 ° even if joints are formed over time in a structure or the like. By forming the surface, there is a function of inhibiting growth based on the root refracting ability and the bud's refracting ability, and a block intended for epoch-making weeding or the like using this function can be provided.

  According to the first aspect of the present invention, a vertical gap is generated at the boundary between the block and the paving material due to secular change, and the seeds of weeds flying in this gap grow by photosynthesis even if they germinate using rainwater. That is, the buds grow upward through the gaps due to phototropism (backlanding), and the roots grow downward (landward) due to terrestrials, preventing growth (breeding) and achieving a herbicidal effect. Intended to be.

  In the first aspect of the present invention, the recess provided on at least one end surface formed along the longitudinal direction of the block is configured such that the opening reaches the upper surface of the block, and the recess is directed toward the bottom. A block intended for herbicidal protection, characterized by having a sloped side that can be a sloped joint surface with a downward angle of 70 °, and chamfering the tip and / or bottom of this recess. is there.

  The invention according to claim 2 is characterized in that a vertical gap is generated at the boundary between the block and the pavement due to secular change, and the seeds of weeds flying in the gap grow by photosynthesis even if they germinate using rainwater. That is, the buds grow upward through the gaps due to phototropism (backlanding), and the roots grow downward (landward) due to terrestrials (progressive growth), thereby inhibiting the growth (breeding) by almost 100%. Intended to achieve effect.

  According to the second aspect of the present invention, the concave portion provided on at least one end surface formed along the longitudinal direction of the block is configured such that the open portion reaches the upper surface of the block, and the concave portion is directed toward the bottom portion. It is configured to have an inclined side that can be an inclined joint surface with a downward angle of 70 °, and a plurality of the recesses are provided in the short direction of the block. / Or is a block intended for weed protection characterized by chamfering the bottom.

  The invention of claim 3 is intended to achieve the object of claim 2 and to provide a block having a top structure optimal to achieve this object.

Claim 3 is a block intended for herbicidal protection according to claim 2,
The plurality of recesses are provided on the outer peripheral end surface of the block, and are configured to reach the upper surface of the block.

  The invention of claim 4 is intended to achieve the object of claim 2 and to provide a block having a tip that is optimal for achieving this object.

Claim 4 is a block intended for herbicidal protection according to claim 2,
This is a block intended for weed prevention, characterized in that weed ridges are provided at the tips of the plurality of recesses.

  According to the first aspect of the present invention, the concave portion provided on at least one end surface formed along the longitudinal direction of the block is configured such that the open portion reaches the upper surface of the block, and the concave portion has a downward angle toward the bottom portion. It is a block intended for weed protection, characterized in that it has a configuration with an inclined side that can be an inclined joint surface with an angle of 70 °, and the chamfered tip and / or bottom of the recess.

  Therefore, according to the first aspect of the present invention, a vertical gap is generated at the boundary between the block and the paving material due to secular change, and the seeds of weeds flying in this gap grow by photosynthesis even if they germinate using rainwater. In other words, the buds can be prevented from growing (breeding) by extending the buds upward through the gaps (backlanding), and the roots extending downwards (landing) due to the refractory properties, thereby achieving a herbicidal effect. There is.

  In the invention of claim 2, the concave portion provided on at least one end surface formed along the longitudinal direction of the block is configured such that the open portion reaches the upper surface of the block, and the concave portion has a downward angle toward the bottom portion. Is provided with an inclined side that can be an inclined joint surface that is 70 °, and a plurality of recesses are provided in the short direction of the block, and further, the tip and / or bottom of the recess is provided. It is a block intended for weed protection, characterized by chamfering.

  Therefore, according to the second aspect of the present invention, a vertical gap is generated at the boundary between the block and the paving material due to secular change, and the seeds of weeds flying in this gap grow by photosynthesis even if they germinate using rainwater. That is, the buds grow upward through the gaps due to phototropism (backlanding), and the roots extend backwards due to terrestriality (landward). There are features that can be achieved.

The invention of claim 3 is a block intended for herbicidal protection according to claim 2,
A block intended for weed prevention, characterized in that a plurality of recesses are provided on the outer peripheral end face of the block and are configured to reach the upper surface of the block.

  Therefore, claim 3 is characterized in that the object of claim 2 can be achieved, and that a block having a top structure optimal to achieve this object can be provided.

The invention of claim 4 is a block intended for herbicidal protection according to claim 2,
It is a block intended for weed prevention, characterized by providing a weed prevention ridge at the tip of a plurality of recesses.

  Therefore, claim 4 is characterized in that the object of claim 2 can be achieved, and that a block having an optimum tip for achieving this object can be provided.

1-1 is a side view of the first block. 1-2 is a cross-sectional view showing the construction state of the first block 2-1 is a side view of the second block 2-2 is a cross-sectional view showing the construction status of the second block Figure 3-1 is a side view of the third block 3-2 is a cross-sectional view showing the construction state of the third block 4 is a side view of the fourth block. 5 is a side view of the fifth block FIG. 6A is a perspective view of the sixth block. FIG. 6-2 is a perspective view of the seventh block. FIG. 7-1 is a side view of the eighth block. FIG. 7-2 is a side view of the ninth block FIG. 7-3 is a side view of the tenth block. 7-4 is a side view of the eleventh block. Fig.7-5 is a side view of the twelfth block 7-6 is a side view of the thirteenth block. 8-1 is a side view of the fourteenth block FIG. 8-2 is a side view of the fifteenth block with the fourteenth block cut out. FIG. 9 is a perspective view showing a sixteenth block in which a concave portion is provided on the outer peripheral end face of the block.

  1-1 is a side view of the first block, FIG. 1-2 is a sectional view showing the construction state of the first block, FIG. 2-1 is a side view of the second block, and FIG. FIG. 3A is a side view of the third block, FIG. 3-2 is a cross-sectional view showing the construction state of the third block, and FIG. 4 is the fourth block. 5 is a side view of the fifth block, FIG. 6-1 is a perspective view of the sixth block, and FIG. 6-2 is a perspective view of the seventh block.

  FIGS. 7-1 to 7-6 show side views of the eighth to thirteenth blocks, respectively, and show preferable examples when a plurality of recesses are formed.

  FIGS. 8A and 8B are preferable examples of the combination structure of the block and the herbicidal seal. FIG. 8A is a side view of the fourteenth block, and FIG. The side view of the 15th block which notched the block is shown.

  FIG. 9 is a perspective view showing a sixteenth block in which a concave portion is provided on the outer peripheral end face of the block.

  The first block E to the seventh block E shown in FIGS. 1-1 to 6-2 will be described. FIG. 1-1 is a side view of the first block E. One end face E-1 and the other end face E- of the first block E in the longitudinal direction X′-1 (see FIG. 1-2). 1, a recess 6 and a recess 6 reaching the upper surface E-2 and the lower surface E-3 of the block E having the inclined side (inclined joint surface) 3 and the inclined side (inclined joint surface) 3 whose downward angle is in the range of about 70 °. The recess 6 and the recess 6 are provided with a draft angle F and a draft angle F of a mold (not shown), and the recess 6 and the tip portion 6-1 and tip portion 6 of the recess 6 are provided. 1 and / or chamfering 7 and chamfering 7 are formed on the bottom 6-2 and the bottom 6-2. FIG. 1-2 shows a construction state of the first block E, and the cavities C-1 and C- 1 is embedded, and a concrete structure A-1 on one side and / or a concrete structure B-1 on the other side is laid thereon. FIG. 2-1 is a side view of the second block E, and a downward angle is substantially at least on one end surface E-1 in the longitudinal direction X′-1 (see FIG. 2-2) of the second block E. A recess 6 reaching the upper surface E-2 of the block E having an inclined side (inclined joint surface) 3 having a 70 ° range is provided, and the recess 6 includes a draft angle F of a mold (not shown), Further, a chamfering process 7 is formed on the tip 6-1 and / or the bottom 6-2 of the recess 6. And FIG. 5 has shown the construction state of the 2nd block E, burying the cobble stone C-1 to the position of the front-end | tip part 6-1 of the recessed part 6, and the concrete structure A-1 of one side on it. And / or the concrete structure B-1 on the other side is laid. Other structures are the same as in the above examples. 3rd block E shown in FIG. 3-1, FIG. 3-2, 4th block E shown in FIG. 2-1, 5th block E shown in FIG. 2-2, and FIG. The sixth block E shown in FIG. 1 and the seventh block E shown in FIG. 6-2 are based on the second block E shown in FIGS. 2-1 and 2-2. However, the following points will be described. In FIG. 2B, the concave portion 6 reaching the upper surface E-2 of the block E provided with the inclined side (inclined joint surface) 3 whose downward angle is in the range of about 70 ° has a substantially elliptical shape. Even in the case of the substantially elliptical concave portion 6, the herbicidal effect can be expected if the downward angle is approximately 70 °. In FIGS. 6A and 6B, one or several protrusions 8 are provided in the longitudinal direction X′-1 of the sixth block E and the seventh block E, and the downward angle is approximately 70 °. The ridge inclined side (concave inclined side) 8-1 is used to prevent weeds in the longitudinal direction X′-1. As shown in the sixth block E of FIG. 6A, the end portion in the longitudinal direction X′-1 has a feature useful for weed prevention at the joint of the sixth block E.

  The eighth block E to the thirteenth block E shown in FIGS. 7-1 to 7-6 correspond to the second block E shown in FIGS. 2-1 and 2-2. However, the following points will be described. FIG. 7A is a configuration in which a plurality (two peaks) of recesses 6 reaching the upper surface E-2 of the block E are provided. FIG. 7-2 is a configuration in which a plurality (one mountain) of recesses 6 reaching the upper surface E-2 of the block E is provided. FIG. 7-3 is a configuration in which the second block E shown in FIGS. 2-1 and 2-2 is adopted, and a plurality of (one mountain) recesses 6 reaching the upper surface E-2 of the block E are provided. FIG. 7-4 is a configuration in which a plurality of (one mountain) concave portions 6 reaching the upper surface E-2 of the block E are raised to the upper surface E-2. FIG. 7-5 is a configuration in which the concave portions 6 reaching the upper surface E-2 of the block E are provided on one side and the other side of the block upper surface E-2. FIG. 7-6 shows a configuration in which a plurality (one mountain) of recesses 6 reaching the upper surface E-2 of the block E are provided on one side and the other side of the block upper surface E-2.

  The fourteenth block E to the sixteenth block E shown in FIGS. 8-1 to 9 will be described. FIG. 8-1 and FIG. 8-2 are preferable examples of the combined structure of the block E and the herbicidal seal 9, and the characteristics of the block E are the eighth one shown in FIGS. 7-1 to 7-6. According to block E to thirteenth block E. FIG. 8A is a side view of the fourteenth block E, in which a grassproof seal 9 is attached to the tip 6-1 of the recess 6 reaching the upper surface E-2 of the block E. FIG. FIG. 8-2 is a side view of the fifteenth block E in which the fourteenth block is cut out. A recess 10 is provided at the tip 6-1 of the recess 6 reaching the upper surface E-2 of the block E. The grass seal 9 is fitted in the recess 10. In the fourteenth block E and the fifteenth block E, the gap 5 generated in the block E due to secular change can be closed by the weedproof seal 9, and the angle between the weedproof seal 9 and the downward angle of about 70 ° is Synergistic effects can ensure reliable weed prevention. In addition, the width | variety, length, etc. of this weedproof seal 9 can be changed suitably. FIG. 9 is a perspective view of the sixteenth block E in which the concave portion 6 is provided on the outer peripheral end surface of the block E. The concave portion 6 reaching the upper surface E-2 of the block E is provided on the outer peripheral end surface of the block E. is there.

3 Inclined side (Inclined joint surface)
6 dent 6-1 tip 6-2 bottom 7 chamfering 8 ridge 8-1 ridge inclined side (concave inclined side)
9 Herbicidal seal 10 Dimple A-1 Concrete structure on one side B-1 Concrete structure on the other side C-1 Gebstone E Block E-1 End face E-2 Upper face E-3 Lower face F Draft X'-1 Longitudinal direction

Claims (4)

  The concave portion provided on at least one end surface formed along the longitudinal direction of the block is configured such that the open portion reaches the upper surface of the block, and the concave portion has a downward angle of 70 ° toward the bottom portion. A block intended for weed protection, characterized in that it has a configuration with an inclined side that can be an inclined joint surface, and the tip and / or bottom of the recess is chamfered.   The concave portion provided on at least one end surface formed along the longitudinal direction of the block is configured such that the open portion reaches the upper surface of the block, and the concave portion has a downward angle of 70 ° toward the bottom portion. In addition, a plurality of the concave portions are provided in the short direction of the block, and a tip portion and / or a bottom portion of the concave portion is provided. Block intended for weed protection, characterized by chamfering. A block intended for weed control according to claim 2,
A block intended for weed prevention, characterized in that the plurality of recesses are provided on the outer peripheral end surface of the block and are configured to reach the upper surface of the block. A block intended for weed control according to claim 2,
A block intended for weed prevention, characterized by providing a weed prevention ridge at the tip of the plurality of recesses.

Images