JP2006083629A - Block and its installation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a block firmly installed on a pavement surface without looseness. <P>SOLUTION: The block 10 has a block body 20 with an almost horizontal bottom face 13 abutting on the pavement surface 2, and a cylindrical member 21 embedded toward the bottom face 13 from the surface 12 of the block body 20, wherein a bottom part 27 of the cylindrical member 21 located near the bottom face is closed to concrete. An anchor pin 22 is inserted in the cylindrical member 21 from the surface 12 side of the block body 20, and the tip of the anchor pin 21 penetrates the bottom part 27 of the cylindrical member 21 and is driven into the pavement surface 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a block additionally provided on an asphalt or concrete pavement surface such as a parking lot and an installation method thereof.

A concrete block may be attached later to an area where a ground such as a road or a parking lot is paved or reinforced with asphalt or concrete. In a parking lot, a block for stopping a car having a square or trapezoidal cross section is attached. In the past, the car stop block was fixed to the pavement surface only with an adhesive. However, the adhesive alone has a small adhesive force and may be peeled off when pressed by a car tire. For this reason, a method of attaching the block more firmly has been proposed. One of them is a method in which a hole that penetrates the block up and down is formed in the block, a rod-shaped member such as a pile or a pin is driven from above the hole, and the block is fixed to the base. What is disclosed in the Gazette is known.
JP 2002-227148 A

  Conventionally, a hole penetrating to the upper limit of the block is attached to a conical or tapered auxiliary formwork that forms a hole when concrete is poured into the formwork to form the block, and the concrete is supported when the concrete is solidified. It is formed by a method of removing the formwork. However, removing the auxiliary formwork from the concrete block is not so easy. If the taper angle is increased so that it can be easily removed, the cross-section of the through-hole will be larger than the diameter of the pin that passes through it, so that the pin will be rattled and the position where the pin is inserted will shift when used. There are disadvantages such as. In addition, a large amount of grout must be injected to fill the large holes.

  On the other hand, as shown in FIG. 9, it is considered to manufacture a vehicle stopper block having a hole penetrating the upper limit by embedding a cylindrical sleeve formed of plastic or the like. FIG. 9A shows a cross section of the block, and FIG. 9B shows the block viewed from above. The vehicle stop block 100 is a concrete block that has a trapezoidal cross section so that an inclined surface 101 against which a tire hits is formed, and is long in the horizontal direction as a whole. Two sleeves 103 that form two through-holes 102 extending in the vertical direction are embedded at two locations in the longitudinal direction of the block 100 at approximately the center in the short side direction.

  FIG. 10 shows an example of a method for manufacturing the block 100. As shown in FIG. 10A, a mold 110 having an inner shape of a trapezoid is used, and the bottom surface 105 of the block 100 is manufactured so as to face up. A nut 112 is attached to the opposite side of the bottom surface 111 of the mold 110 corresponding to the position where the sleeve 103 is embedded, and the pipe (sleeve) 103 can be fixed to the mold 110 using a long bolt 113. Next, as shown in FIG. 10B, the ready-mixed concrete is put into the mold 110 to form a concrete car stopper block. After the concrete is solidified, the bolts 113 are removed, and the block 100 is removed, whereby the vehicle stop block 100 in which the sleeve 103 is embedded is manufactured.

  When injecting concrete into the mold 110, one end of the sleeve 103 is pressed against the bottom surface 111 of the mold 110 to close it, and the other end is closed by the head of the mounting bolt 113. Therefore, when the concrete is poured into the mold 110, the concrete does not easily enter the inside of the sleeve 103, and the sleeve 103 is not clogged with concrete.

  FIG. 11 shows a state where the block 100 is installed on the pavement surface 120. As shown in FIG. 11A, an appropriate amount of adhesive 121 is applied to the bottom surface 105 of the block 100, and the bottom surface 105 is applied to the pavement surface 120. Next, the anchor pin 125 is passed through the through hole 102 formed by the pipe 103 from above, and the anchor pin 125 is driven into the pavement surface 120 with a hammer or the like. Thereby, as shown in FIG.11 (b), the vehicle stop block 110 is fixed to the pavement surface 120. FIG.

  The block 100 in which the sleeve 103 is embedded does not need to be attached or detached to form a hole penetrating the block, so that it is easy to manufacture and can be mass-produced at low cost. Moreover, since it can be additionally installed on the pavement surface by simply driving an anchor pin at the site, the site construction is easy, construction time should be short, and construction costs should be reduced. However, the manufacturing is not so easy, the construction is not so easy, and the mounting strength is not so high.

  The factor is that the sleeve 103 is embedded. By embedding the sleeve 103, a straight hole, not a taper, can be formed in the block. Bolts are passed through the sleeve 103 when attached to the formwork, and anchor pins are passed during construction. Therefore, the inner diameter of the sleeve must be larger than the outer diameter of both the bolt and the anchor pin, and further, it is necessary to be larger than the outer diameter including both manufacturing errors in order to ensure the clearance. . Considering the situation at the manufacturing site and construction site, the inner diameter of the sleeve needs a larger clearance that allows some sand or dust to pass smoothly even if it is on the bolt or anchor pin. And since it becomes not a taper-shaped hole but a straight hole, it is required that the whole hole has a certain clearance or more.

  On the other hand, after the block is installed on the pavement surface, if there is a clearance between the pin and the sleeve, rattling occurs, and when the tire hits the block, an impact is applied to the anchor pin and the anchor pin is easily removed. . Therefore, it is desirable that the clearance is as small as possible. It is difficult to satisfy these conflicting requirements at the same time. Therefore, it is conceivable to adopt a method of filling the space between the anchor pin and the sleeve by injecting mortar (grout) into the sleeve after construction. However, in order to inject mortar, a certain amount of clearance is required, and eventually, a sleeve having a very large inner diameter with respect to the diameter of the bolt or the anchor pin is embedded. This makes it impossible to reduce the amount of mortar, and it is necessary to reposition the block when the mortar is injected after the anchor pin is hit. Therefore, it becomes difficult to shorten the construction time.

  Since mortar with strength is low in fluidity, it cannot be injected with clearance of several millimeters. On the other hand, if the fluidity is increased by increasing the water content, there is no strength and the function of preventing rattling is not achieved. The same applies to the adhesive, and even if a large amount of adhesive is applied to the bottom of the block or pouring from above, the clearance between the sleeve and the anchor pin near the bottom that is most effective in preventing rattling is filled A sufficient amount cannot be supplied, and the strength is insufficient only with the adhesive.

  In addition, since concrete has a property of shrinking when a block is manufactured using a mold, the sleeve is too long and may protrude from the bottom surface unless the dimensions are taken into account. If the sleeve protrudes from the bottom surface, the bottom surface is not flat, so it cannot be applied to the pavement surface in a stable state, the anchor pin may come off, or the adhesive applied to the bottom surface may not work. On the other hand, if the sleeve is too short and its end sinks to the bottom surface, the bolt that secures the sleeve to the mold is wrapped in concrete and cannot be removed. Therefore, it takes time and effort to remove the concrete around the bolt.

  Therefore, in the present invention, a block of a type that forms a hole into which an anchor pin is inserted using a sleeve, is easy to manufacture, is easy to construct on the site, and has sufficient mounting strength. And its installation method.

  In the present invention, a cylindrical member whose bottom is closed to concrete is not formed in a concrete block without forming a through hole through which an anchor pin is passed by a sleeve embedded in the block, and the cylindrical member is installed when the block is installed. The anchor pin is inserted from the surface side of the tube, and the tip of the anchor pin is driven into the pavement surface through the bottom of the cylindrical member. A cylindrical member whose bottom is closed to concrete means a cylindrical member that does not allow concrete to enter from the bottom. In addition to a cylindrical member whose bottom is completely closed, it is so small that concrete does not enter the bottom. It also includes a cylindrical member having a perforated hole.

  Therefore, the block installation method of the present invention includes a block main body having a substantially horizontal bottom surface that comes into contact with the pavement surface, and a cylindrical member embedded from the surface of the block main body toward the bottom surface. The bottom of the cylindrical member located in the vicinity is a method of installing a block closed with respect to the concrete, and the anchor pin is inserted from the surface side of the cylindrical member and penetrated through the bottom of the cylindrical member. A step of driving the tip of the pavement into the pavement surface.

  When the anchor pin is inserted into the tubular member and penetrates the bottom, the bottom of the tubular member and the concrete that covers the bottom of the tubular member and constitutes the bottom of the block are not broken. Retained. Therefore, even if there is a clearance that causes rattling between the inner diameter of the cylindrical member and the anchor pin, the anchor pin is not held by the bottom of the cylindrical member and the concrete and does not rattle. Further, since the place where the anchor pin is held is close to the pavement surface on the bottom surface of the block, the block is attached to the pavement surface in a stable state.

  On the other hand, when the anchor pin is inserted into the tubular member and penetrates the bottom portion, the bottom of the tubular member and the concrete that covers the bottom portion of the tubular member and forms the bottom surface of the block are broken. It becomes a material and fills the clearance between the tubular member and the anchor pin to prevent rattling. Since the aggregate is generated in the vicinity of the pavement surface by driving the anchor pin, the clearance between the tubular member and the anchor pin can be reduced by pouring a highly fluid mortar or adhesive. It will be filled with high-strength sealing material mixed with. On the other hand, since the aggregate is generated in the field, the mortar and the adhesive that are poured from the surface through the cylindrical member may be high in fluidity. Therefore, even if the clearance between the cylindrical member and the anchor pin is small, a sufficient amount of mortar or adhesive can be poured into a desired position. Moreover, if the inner diameter of the cylindrical member is reduced to such an extent that it has a clearance that allows the anchor pin to be easily inserted, the volume buried by the broken bottom portion or concrete by driving the anchor pin increases, and the anchor is more firmly fixed. Pins can be fixed. Therefore, it is desirable to have a step of injecting mortar or an adhesive into the cylindrical member after the step of driving the anchor pin.

  The mortar or adhesive may be applied to the bottom surface or the pavement surface before the bottom surface of the block body is applied to the pavement surface. That is, an installation method having a step of applying mortar or an adhesive to the bottom surface or the pavement surface before the bottom surface of the block body is applied to the pavement surface is effective. Also in this case, the anchor pin is driven at a location where the adhesive strength is to be increased, so that a crack at the bottom of the cylindrical member and / or a concrete crack is formed as an aggregate. Thus, the clearance between the anchor pin and the tubular member can be filled. In addition, the bottom surface of the block is a surface into which concrete is thrown when manufactured, and an impurity called latency is floated, and this latency is easily peeled off like a thin skin. For this reason, even if an adhesive or mortar is applied to the bottom surface and the block is installed on the pavement surface, high adhesive strength is difficult to obtain. However, since the anchor pin penetrates the bottom of the tubular member, a part of the bottom surface is destroyed and the portion where the latency is peeled is exposed, so that the adhesive force is increased and the peeled latency is bonded as an aggregate. Increase the strength of the agent. Therefore, the adhesive strength between the block and the paved surface can be increased.

  Thus, the block which embed | buried the cylindrical member which the bottom part closed with respect to concrete has the high effect in the construction surface. Furthermore, when manufacturing a block with a formwork, concrete does not penetrate | invade the inside of a cylindrical member from a bottom part. Therefore, the bottom of the cylindrical member can be prevented from protruding from the bottom surface at or near the bottom surface of the concrete block. In particular, the bottom of the tubular member does not protrude from the bottom surface even if the tubular member shrinks after the concrete is poured into the mold by sizing the tubular member so that the bottom of the tubular member is retreated from the bottom surface of the block. The block can be manufactured reliably. Therefore, the block of the present invention is a block installed on a pavement surface, and has a block main body having a substantially horizontal bottom surface that contacts the pavement surface, and a cylindrical member embedded from the surface of the block main body toward the bottom surface. However, the block in which the bottom of the cylindrical member located near the bottom surface or the vicinity of the bottom surface is closed with respect to concrete is easy to manufacture and has high mass productivity. Furthermore, since it does not rattle when attached to a pavement surface, construction on the site is also facilitated. In particular, it is desirable that the bottom portion of the cylindrical member is in a position retracted from the bottom surface.

  The block having a block main body with a substantially horizontal bottom surface that abuts the pavement surface of the present invention has a bottom surface of the block main body on a boss provided on the bottom surface of the formwork formed so that the surface of the block main body faces down. It can be manufactured by a manufacturing method having a step of attaching a cylindrical member whose bottom portion located on the side is closed with respect to concrete and a step of injecting concrete into the mold until the bottom portion of the cylindrical member is hidden. In this manufacturing method, no bolt is required to attach the cylindrical member to the mold, and the manufacturing time can be shortened and the manufacturing cost can be reduced.

  It is desirable that an annular member made of resin be attached to the opening on the surface of the cylindrical member. When the anchor pin is driven into the pavement surface using a hammer, it is possible to prevent the hammer from hitting the block main body by the annular member, and it is possible to prevent damage to the block main body due to the driving operation.

  The cylindrical member may be made of iron, but is preferably made of resin. If it is a resin-made cylindrical member, when it penetrates a bottom part with an anchor pin, it will be easy to hold | maintain an anchor pin by elasticity, or it will be easy to make the clearance between an anchor pin and a bottom part small.

  The thickness of the bottom portion of the tubular member is preferably set to be approximately the diameter of the anchor pin inserted into the tubular member. If the bottom is too thick, the operation of driving the anchor pin becomes difficult. On the other hand, if the bottom is too thin, the force for holding the anchor pin cannot be obtained. Moreover, it is difficult to obtain a function of increasing strength as an aggregate.

  In the present invention, by embedding a cylindrical member having a closed bottom with respect to concrete in a block, a cylindrical member having an inner diameter with a small clearance that is easy to insert an anchor pin is used, and manufacturing is easy. In addition, it is possible to provide a block that is easy to construct and has high adhesive strength with the pavement surface.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a perspective view of a car stopper block according to the present invention. In FIG. 1, the block 10 has shown the state fixed to the pavement surface 2 of the parking lot. The vehicle stop block 10 is a concrete block that is substantially trapezoidal in cross section with the inclined surface 11 on the side where the tire hits, and is long in the horizontal direction. The block 10 includes a concrete block body 20 having a substantially horizontal bottom surface 13 facing the pavement surface 2, and two cylindrical members 21 embedded in the block body 20 from the surface 12 toward the bottom surface 13. And have. The embedded cylindrical member 21 forms a non-penetrating hole 24 extending from the surface 12 to the inside of the block body 20, and an anchor pin 22 is inserted into the hole 24 and driven toward the pavement surface 2. Thus, the block 10 is fixed to the pavement surface 2.

  FIG. 2A shows a schematic configuration of the block 10 in cross section. FIG. 2B shows the block 10 as viewed from above. Two cylindrical members 21 are embedded in the block 10 at a position closer to the end than the center in the longitudinal direction and substantially in the center in the lateral direction. Each cylindrical member 21 is open at one end 26 and closed at the other end 27, the opening 26 appears on the surface 12 of the block body 20, and the closed end 27 is substantially perpendicular to the bottom surface 13 of the block 10. It is buried to go to. Therefore, the closed end 27 of the cylindrical member 21 becomes the bottom 27 of the non-penetrating hole 24. In the block 10 of this example, the bottom portion 27 of the cylindrical member 21 is in a position retracted from the bottom surface 13 of the block main body 20, and the concrete layer 19 exists between the cylindrical member 21 and the bottom surface 13 of the block. . The cylindrical member 21 is provided with a rib 28 protruding in a disk shape at an intermediate position thereof, and the rib 28 prevents the cylindrical member 21 from being displaced in the vertical direction with respect to the block body 20 or coming off. It is preventing.

  FIG. 3 shows how the block 10 is installed on the pavement surface 2. As shown in FIG. 3A, first, an adhesive 29 is applied to the bottom surface 13 of the block 10. In particular, it is applied so that the adhesive 29 exists between the portion 13 a below the bottom 27 of the cylindrical member 21 and the pavement surface 2. The block 10 coated with the adhesive 29 is placed at a desired position so that the bottom surface 13 contacts the paved surface 2 of the parking lot. Before or after placing the block 10 on the pavement surface 2, a resin annular member 36 is attached to the opening 26 of the tubular member 21 that appears on the surface 12 of the block body 20. Then, as shown in FIG. 3B, the anchor pin 22 is inserted into the tubular member 21 through the annular member 36 and driven into the pavement surface 2 with a hammer. The anchor pin 22 penetrates the bottom portion 27 of the cylindrical member 21 and the concrete layer 19 therebelow and is driven into the pavement surface 2 to install the block 10 on the pavement surface 2.

  FIG. 4 shows an enlarged view of the state in which the anchor pin penetrates and the block 10 and the pavement surface 2 are connected. The inner diameter of the cylindrical member 21 is such that the clearance CL opens with respect to the outer diameter of the anchor pin 22. By providing the clearance CL, the anchor pin 22 can be easily inserted. When the pin 22 is driven, the pin 22 can be smoothly inserted into the cylindrical member 21 even if some sand or dust is attached to the pin 22 or enters the cylindrical member 21.

  On the other hand, when the anchor pin 22 is driven into the pavement surface 2, the bottom portion 27 of the tubular member 21 and the concrete layer 19 therebelow are broken or destroyed, and the space between the tubular member 21 and the anchor pin 22 is reduced. The clearance CL is filled with the broken piece 18. The adhesive 29 is between the pieces 18, between the pieces 18 and the anchor pins 22, between the pieces 18 and the tubular member 21, between the pieces 18 and the concrete block body 20, and between the pieces 18 and the pavement surface 2. Between them and acts as a binder to join them. Therefore, the space between the anchor pin 22 and the cylindrical member 21 and the block main body 20 is buried in a state where the fragments 18 are aggregates and the adhesive 29 is a binder, and the anchor pin 22, the cylindrical member 21 and the block main body 20 are filled. Are firmly joined. Further, the block body 20 and the pavement surface 2 are also firmly bonded by the fragments 18 and the adhesive 29. For this reason, the block 10 is firmly attached to the pavement surface 2 via the anchor pin 22, and the combination between the block 10 and the anchor pin 22 is strengthened by the combination of the fragment 18 and the adhesive 29, Bonding between the block 10 and the paved surface 2 is also strengthened.

  Therefore, the block 10 in which the cylindrical member 21 having a sufficient clearance CL between the anchor pin 22 and the anchor pin 22 is embedded can be attached to the pavement surface 2 with almost no rattling due to the clearance CL. Therefore, the impact when the horizontal force is applied to the block by being pushed by the tire can be received by the anchor pin 22 and the adhesive 29 between the bottom surface 13 of the block 10 and the pavement surface 2. This can also prevent the anchor pin 22 from being distorted. Therefore, it is possible to prevent the anchor pin 22 from coming off due to repeated impacts, and the block 10 can be installed on a concrete paved surface or an asphalt paved surface in a stable state over a long period of time.

  When the anchor pin 22 is struck with a hammer and the bottom 27 of the cylindrical member 21 is punched out, the concrete layer 19 of the block body 20 underneath is destroyed in a conical shape over a wide area. Since the bottom 27 of the tubular member 21 has a certain thickness and area, it is considered that the concrete layer 19 below the bottom 27 is more widely destroyed than the anchor pin 22 is driven directly into the concrete. The bottom surface 13 of the block main body 10 tends to be a surface having a small strength in a state where the latency is floated. However, in this example, when the anchor pin 22 is driven, a part of the latency layer is destroyed and mixed with the adhesive 29, and the high-strength concrete layer from which the latency is removed is joined to the pavement surface 2. become. Also in this respect, the block 10 is firmly installed.

  When the block 10 is installed on the pavement surface 2, the annular member 36 attached to the opening 26 of the cylindrical member 21 is made of resin, and the outer diameter thereof is slightly larger than the head 22 a of the anchor pin 22. Therefore, when the head 22 a of the anchor pin 22 is hit with a hammer or the like, the head 22 a does not directly hit the surface 12 of the block body 20. Further, when the head 22 a of the anchor pin 22 approaches the block body 20, the hammer hits the resin-made annular member 36 even if the hammer is slightly displaced. Therefore, it is possible to prevent the head 22a or hammer of the anchor pin 22 from directly hitting the block main body 20, and to prevent the concrete of the block main body 20 from being damaged by the head 22a or hammer.

  FIG. 5 shows a manufacturing method of the block 10. As shown in FIG. 5A, a mold 30 is used which is molded with the surface 12 of the block body 20 facing down. Since the surface 12 of the block 10 becomes a surface that appears on the table when the block 10 is installed on the pavement surface 2, the surface is molded by the mold 30 to produce the block 10 that has a smooth surface and a good appearance. It is. The mold 30 has a shape corresponding to the trapezoidal shape of the block 10, and the surface (bottom surface of the mold) 31 of the mold 30 corresponding to the position where the opening 26 of the cylindrical member 21 appears in the block 10 A boss 32 having a size and a shape that can be fitted into the opening 26 of the tubular member 21 to fix the tubular member 21 is attached by a method such as welding or screwing. Therefore, by attaching the tubular member 21 so that the opening 26 covers the boss 32, the tubular member 21 is not moved when pouring concrete into the desired position of the mold 30 in the desired posture. Can be attached to. For this reason, when manufacturing the block 10 of this example, it is not necessary to attach or detach a metal fitting such as a bolt or a fixture in order to attach or detach the cylindrical member 21 to or from the mold frame 30; All that is required is to insert it into the boss 32, which is a part of 30.

  Next, as shown in FIG. 5 (b), concrete 39 is put to a predetermined height of the mold 30 to form a block 10 having a desired size. The length (height) of the cylindrical member 21 is slightly shorter than the height after the block 10 is manufactured. Therefore, the concrete 39 covers the bottom portion 27 of the tubular member 21. Since the bottom portion 27 of the cylindrical member 21 is closed and the bottom surface is formed, the concrete 39 does not enter the inside of the cylindrical member 21. Further, since the opening 26 of the tubular member 21 is closed by the boss 32, the concrete does not enter the inside of the tubular member 21 from the opening 26. When removing the block 10 from the mold 30, the cylindrical member 21 is separated from the mold 30 by separating the mold 30 and the block 10 in the extending direction of the cylindrical member 21, that is, in the upper part of FIG. 5B. The opening 26 of the 21 naturally disengages from the boss 32. Therefore, the block 10 of this example can be easily manufactured and supplied at low cost.

  The length of the cylindrical member 21 is about 10-15 mm shorter than the height at which the concrete 39 is to be put into the mold 30. Therefore, at the stage where the concrete 39 is poured, the bottom 27 of the cylindrical member 21 is in a position retracted about 10 to 15 mm with respect to the bottom surface 13 of the block body 20. On the other hand, conditions such as hardness vary from day to day due to factors such as changes in surface water. And the concrete 39 may drop or shrink | contract the thrown surface about several millimeters from the time of throwing. Furthermore, an error occurs when the height of the surface when the concrete 39 is put into the mold 30 is about several millimeters. On the other hand, in this example, since the height of the bottom 27 of the cylindrical member 21 is lowered by about 10 to 15 mm when the concrete is charged, the bottom surface 13 is lowered due to the loading error and the shrinkage of the concrete itself. Even so, the bottom 27 of the cylindrical member 21 is in a position retracted from the bottom surface 13 of the block body 20. When the insertion error and the shrinkage are large, the bottom 27 of the cylindrical member 21 does not protrude from the bottom surface 13 of the block main body even if the bottom 27 of the cylindrical member 21 is very close to or the surface position of the bottom surface 13. Is possible.

  For this reason, the cylindrical member 21 does not protrude from the bottom surface 13 of the block 10, and rattling is thereby prevented. In addition, if the cylindrical member 21 protrudes from the bottom surface, stacking of stock or stacking during transportation becomes unstable, and it also interferes with the work of surface finishing with a trowel when concrete is thrown in. These problems have also been eliminated in the example block 10.

  In order to prevent the cylindrical member 21 and the anchor pin 22 from rattling, it is originally desirable that the inner diameter of the cylindrical member 21 and the outer diameter of the anchor pin 22 be substantially the same. And when the cylindrical member 21 is formed with resin, even if the outer diameter of the anchor pin 22 is somewhat large, the cylindrical member 21 can be swollen by passing and the anchor pin 22 can be passed. However, the cylindrical member 21 does not swell when embedded in the concrete, and if the anchor pin 22 is forcibly driven, the concrete block may be cracked or cracked. Further, the tubular member 21 may be slightly curved inward due to the concrete on the outside, and conversely, the anchor pin 22 is difficult to enter. Even if the inner diameter error can be reduced by molding the cylindrical member 21 with a resin such as plastic, the anchor pin 22 needs to be strong enough to be driven into the pavement surface 2, and an iron anchor pin is used. There is also a problem that the error in the outer diameter cannot be reduced. In particular, if the head of the pin is expanded or the tip is sharpened, further errors are likely to occur. When mass-producing pins having such a shape, a method generally called forging is adopted, and the pins are formed by pressing iron in a mold. That is, by pressing, a round bar serving as an anchor pin is momentarily pressed and crushed by pressing both ends to sharpen the tip or widen a portion serving as a head. Due to errors in the outer diameter of the original iron wire or round bar, differences in the material of the iron wire, the degree of wear of the press mold, etc., the variation of individual products will increase, and there will be some cylinders and pins. It may be bent in the longitudinal direction. In consideration of all these conditions, it is general in design that the inner diameter of the cylinder is at least about several mm larger than the outer diameter of the anchor pin. However, since there is this clearance, even if the pin 22 is driven with much effort, when the block 10 is pushed by the car tire, there is a high possibility that the anchor pin 22 will come off due to rattling.

  On the other hand, in the block 10 of this example, by using the cylindrical member 21 whose bottom portion 27 is closed with respect to the concrete, the bottom portion 27 and the concrete layer 19 therebelow are punched out with the anchor pins 22, thereby The clearance between the anchor pins 22 is filled with the cylindrical member 21 and the concrete layer 19 so that the clearance after construction is eliminated. Therefore, in the block 10 of this example, a sufficient clearance can be secured between the anchor pin 22 and the tubular member 21 before construction, and the clearance can be eliminated after construction. The shakiness after construction between the member 21 can be eliminated. Moreover, in the block 10 of this example, since the manufacturing method which the bottom part 27 of the cylindrical member 21 does not protrude from the bottom face 13 of the block main body 20 can be employ | adopted, the block 10 is rattled with respect to the pavement surface 2 also in this respect. Can be installed in a state without.

  In the above example, the bottom portion 27 of the cylindrical member 21 is in a completely closed state, but as shown in FIG. 6, a small hole 25 having a diameter of about several millimeters is formed so that concrete does not enter the bottom portion 27. It is also possible to use a cylindrical member that has been made. The tubular member 21 can be driven by aligning the narrowed tip of the anchor pin 22 with the hole 25 in the bottom portion 27 of the tubular member 21. Therefore, instead of destroying the bottom 27 of the cylindrical member 21, the bottom 27 can be used as a spacer for closing the clearance, and the anchor pin 22 can be stabilized. In this case, if the bottom 27 is thin, the anchor pin 22 cannot be stabilized. Therefore, it is desirable that the cylindrical member 21 is provided with a bottom portion 27 having at least the same thickness as the diameter of the anchor pin 22.

  In FIG. 7 (a), the anchor pin 22 is inserted into the cylindrical member 21 in a state where the block 10 is laid down before being attached to the pavement surface 2, and an impact is applied by a hammer to open the hole 25 in the bottom 27 to the anchor pin. It penetrates at the tip of 22. As a result, the concrete layer 19 on the bottom surface 13 of the block body 20 is crushed and can be removed from the bottom surface 13 of the block body including the latency. Therefore, the bottom surface 13 of the block main body on the lower side of the bottom portion 27 of the cylindrical member 21 is removed from the latency, and is further in a concavo-convex state, so that a concave concrete surface 35 appears as a whole. For this reason, it will be in the state which is easy to ensure adhesive strength with an adhesive agent or mortar. Accordingly, as shown in FIG. 7B, a sufficient adhesive 29 or mortar is applied around the recessed portion 35, the block 10 is placed on the paved surface 2, and then, as shown in FIG. 7C. The block 10 can be installed on the pavement surface 2 with high strength by hitting the anchor pins 22 to the pavement surface 2.

  The adhesive or mortar can also be injected from the opening 26 on the front side of the cylindrical member 21. As shown in FIG. 8, the anchor pin 22 is driven in, and the bottom 27 of the cylindrical member 21 and the concrete layer 19 therebelow are broken or broken, and the mortar 50 is opened from the upper opening 26 of the cylindrical member 21. Can be poured. In this case, since the mortar 50 may be one that can fix the bottom 27 of the cylindrical member 27 or the fragments of the concrete layer 19 as an aggregate, the mortar 50 may have high moisture and fluidity, and the cylindrical member 21 and the anchor pin 22 It can be injected to reach the bottom of the concrete block 10 through the clearance between the two. Thereafter, by further driving the anchor pin 22 to a desired position, the upper opening 26 of the tubular member 21 is closed. Since the injected mortar 50, the fragments of the cylindrical member 27 and the fragments of the concrete layer 19 are mixed by the impact at that time, the anchor pin 22 and the cylindrical member 21 and between the anchor pin 22 and the block 10 are mixed. Furthermore, the anchor pin 22 and the paved surface 2 and the block 10 and the paved surface 2 can be joined with high strength.

  In the above description, the present invention has been described with reference to an example in which a car stop block is installed on a pavement surface such as a parking lot. However, the present invention can also be applied to a case in which a block is installed on a pavement surface using an anchor pin other than a car stop block. . For example, the present invention can also be applied to a case where a walking road boundary block is attached to a pavement surface with an anchor pin.

It is a perspective view of the car stop block concerning the present invention. FIG. 2A is a cross-sectional view of the car stopper block, and FIG. 2B is a plan view of the car stopper block. FIG. 3A shows a state in which the vehicle stop block is placed on the pavement surface, and FIG. 3B shows a state in which the anchor pin is driven into the vehicle stop block placed on the pavement surface. It is sectional drawing which expands and shows the bottom part side of the vehicle stop block in which the anchor pin was driven. It is a figure which shows the manufacturing method of a vehicle stop block, Fig.5 (a) is a state which fixes a sleeve to a formwork, FIG.5 (b) is a figure which shows a mode that concrete was thrown into the formwork. It is sectional drawing which shows the wheel stopper block in which the hole with a small diameter is formed in the bottom part of a sleeve. Fig. 7 (a) shows the state in which the bottom of the sleeve has been penetrated with an anchor pin in advance, Fig. 7 (b) shows that the car stopper block is placed on the pavement surface, and Fig. 7 (c) shows that the anchor pin is struck to the car stopper block. It is sectional drawing which shows a mode. It is sectional drawing which shows the example which inject | pours a mortar into a sleeve and drives in an anchor pin and installs a vehicle stop block. FIG. 9A is a sectional view of a block in which a sleeve is embedded, and FIG. 9B is a plan view of the block. It is a figure which shows the manufacturing method of the block shown in FIG. It is a figure which shows the installation method of the block shown in FIG.

Explanation of symbols

2 Pavement surface 10 Car stop block 12 Surface 13 Bottom surface 20 Block body 21 Tubular member 22 Anchor pin 27 Bottom portion 36 Ring member

Claims (10)

The tubular body having a block main body having a substantially horizontal bottom surface that comes into contact with the pavement surface, and a tubular member embedded from the surface of the block main body toward the bottom surface, and located near the bottom surface or the bottom surface The bottom of the member is a method of installing a block closed against concrete,
An installation method including a step of inserting an anchor pin from the surface side of the cylindrical member, penetrating a bottom portion of the cylindrical member, and driving a tip of the anchor pin into the pavement surface.   The installation method according to claim 1, further comprising a step of applying mortar or an adhesive to the bottom surface or the pavement surface before the bottom surface of the block body is applied to the pavement surface.   The installation method according to claim 1, further comprising a step of injecting mortar or an adhesive into the cylindrical member after the driving step. A block installed on the pavement surface,
A block main body having a substantially horizontal bottom surface in contact with the pavement surface;
A cylindrical member embedded from the surface of the block body toward the bottom surface;
The bottom part of the said cylindrical member located in the said bottom face or the said bottom face closes with respect to concrete.   5. The block according to claim 4, wherein a bottom portion of the cylindrical member is in a position retracted from the bottom surface.   The block according to claim 4, wherein an annular member made of resin is attached to the opening on the surface of the cylindrical member.   The block according to claim 4, wherein the cylindrical member is made of resin.   8. The block according to claim 7, wherein a thickness of a bottom portion of the cylindrical member is about a diameter of an anchor pin inserted into the cylindrical member. A method of manufacturing a block having a block body with a substantially horizontal bottom surface abutting against a pavement surface,
Attaching a cylindrical member whose bottom located on the bottom surface side of the block body is closed to concrete to a boss provided on the bottom surface of a mold that is formed so that the surface of the block body is on the bottom;
A step of injecting concrete into the mold until the bottom of the tubular member is hidden.   The method for manufacturing a block according to claim 9, wherein the cylindrical member is made of resin.

Images