JP5377233B2 - Nut anchor for road facility installation, its construction method, and road facility - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nut anchor for road facility installation which can firmly fix and install a road facility along with the construction since the sufficient initial adhesive strength can be exhibited at the start of the construction and then an additional permanent adhesive strength due to the hardening of an adhesive agent can be increased and which can be constructed and maintained very easily, a construction method for the nut anchor, and a road facility. <P>SOLUTION: This nut anchor 100 includes a head 110 and an anchor bar 130. The head 110 has a bolt tightening part 111 at the top and a tightening groove at the bottom, and sprints 112 of predetermined quantity formed on the outer peripheral surface while projecting in the radial direction and extending in the axial direction. The anchor bar 130 has a tightening part and a tightening groove which are formed at the top and the bottom of a bar 131, respectively, and is tightened with the head 110. The road facility includes the nut anchor 100 and a road facility body having, at the bottom, a fixing bolt 112 connectable to the bolt tightening part 111 which projects and is formed integrally with the body. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  TECHNICAL FIELD The present invention relates to a road anchor installation nut anchor for installing road facilities such as road separators, shock absorbers, road fences and other traffic guidance facilities on concrete and asphalt roads. Road facilities that exhibit sufficient adhesion strength in the initial stage, and then increase the permanent adhesion strength due to the hardening of the adhesive. The present invention relates to an object installation nut anchor, its construction method, and a road facility.

  Road separators, shock absorbers, road fences and various other road facilities are installed on the road. For example, road separators are traffic safety facilities that are installed at regular intervals on the center line or lane of a road and prevent illegal U-turns and merging from nearby lanes. It is installed to display various boundaries such as crosswalk display, sidewalk and roadway separation display, safety zone display, bus lane display, and to prevent derailment at a sharp curve due to excessive speed. (For example, refer to Patent Document 1).

  Most of such road facilities have holes installed in the road by fastening holes after drilling holes in the road and filling the drilled holes with adhesive. For example, as shown in FIG. 11, a conventional road separation mark has a fixing plate 11 formed with a fastening hole in a peripheral direction so that it can be coupled on the road, and is vertically erected in the center of the fixing plate 11. Before the fastening bolt 12 is fastened to the fastening hole of the fixing plate 11, a hole is made in the road and filled with epoxy, and then the fastening bolt 12 is fastened. Thus, the separation mark 10 is installed on the road.

Japanese Patent Laid-Open No. 10-147913

  However, in the installation method as shown in FIG. 11, sufficient strength is not developed and fixed until the adhesive curing time, and the construction failure frequently occurs due to vibration and wind power caused by running the automobile, Road facilities are frequently damaged due to lack of depth and external forces, most of the damaged road facilities cannot be recycled, and different roads must be drilled to reconstruct, resulting in excessive maintenance costs There was a problem that was necessary.

  The present invention has been made paying attention to such a problem, and a sufficient initial adhesion strength is exhibited at the initial stage of construction. After that, an additional permanent adhesion strength is increased by the curing of the adhesive, and at the same time as construction, road facilities. It is an object to provide a nut anchor for road facility installation, its construction method, and road facility which can be fixedly installed firmly and is very easy to construct and maintain.

  In order to achieve the above object, the nut anchor for road facility installation according to the present invention has a bolt fastening portion formed in the upper portion, a fastening groove formed in the lower portion, and a predetermined number of axial splints radially formed on the outer peripheral surface. It has a protruding head, and an anchor rod that is formed with a fastening portion and a fastening groove at an upper portion and a lower portion of the rod, respectively, and is fastened to the head.

  The nut anchor for road facility installation according to the present invention has an end portion in which a fastening portion is formed at the upper portion of the rod so as to be fastened to the lower stage of the anchor rod, and an end having a cone shape is formed at the lower portion. May be. Moreover, you may have further the ring-shaped cap inserted and fastened between a head and an anchor stick | rod. An inclined tapered portion may be formed in the lower stage of the sprint of the head. A predetermined number of protruding ring-shaped or screw-shaped protrusions may be formed on the outer peripheral surface of the anchor rod. A wrench fastening portion protruding inward may be formed inside the bolt fastening portion of the head.

  A nut anchor for road facility installation according to the present invention is a nut anchor for road facility installation according to the present invention, and after piercing the road and removing foreign matter in the drilled hole, Injecting an adhesive into the hole and inserting the nut anchor for road facility installation into the hole filled with the adhesive so that the head can be removed from the anchor bar after the adhesive is cured. , Feature.

The road facility according to the present invention comprises a road facility installation nut anchor according to the present invention, and a road facility main body formed integrally with a lower portion of a fixing bolt that can be fastened to the bolt fastening portion. It is characterized by having.
The road facility may be anything as long as it is installed on the road, such as a road separation mark, a shock absorbing device, a road fence, a road block, and other traffic guidance facilities.

  According to the present invention, sufficient initial adhesion strength is exhibited at the initial stage of construction, and then the road facility is firmly fixed at the same time as construction due to the increase in additional permanent adhesion strength due to curing of the adhesive, which makes construction and maintenance difficult. It is possible to provide an easy-to-install nut anchor for road facility installation, a construction method thereof, and a road facility.

It is a perspective view which shows the nut anchor for road facility installation of embodiment of this invention. It is a disassembled perspective view of the nut anchor for road facility installation shown in FIG. It is a longitudinal cross-sectional view of the nut anchor for road facility installation shown in FIG. It is sectional drawing which shows the drilling process of the construction method of the nut anchor for road facility installation of embodiment of this invention. It is sectional drawing which shows the foreign material removal process of the construction method of the nut anchor for road facility installation of embodiment of this invention. It is sectional drawing which shows the adhesive agent injection | pouring process of the construction method of the nut anchor for road facility installation of embodiment of this invention. It is sectional drawing which shows the nut anchor insertion process of the construction method of the road anchor installation nut anchor of embodiment of this invention. It is a side view which shows the road separation mark of the road facility thing of embodiment of this invention. It is sectional drawing which shows the coupling | bonding process to the nut anchor of the road separation mark shown in FIG. It is sectional drawing which shows the installation state to the road of the road separation mark shown in FIG. It is sectional drawing which shows the installation state to the road of the conventional road separation mark.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show a nut anchor for road facility installation and an execution method thereof according to an embodiment of the present invention.
As shown in FIGS. 1 to 3, the road facility installation nut anchor 100 includes a head 110 and an anchor rod 130.

  A bolt fastening portion 111 for fastening a road facility and a bolt is formed in the upper portion of the head 110, and a fastening groove 113 for fastening the anchor rod 130 is formed in the lower portion of the head 110. A predetermined number of splints 112 project radially from the outer peripheral surface. At this time, an inclined tapered portion 114 is formed in the lower stage of the sprint 112.

  When the nut anchor 100 configured in this manner is inserted into a hole in the road, the nut anchor 100 is pushed into the hole by the splint 112, which is sufficient to fix the road facility even before the adhesive is cured. Will exhibit a good adhesion strength.

  Further, when the nut anchor 100 is pushed into the road, the tapered portion 114 formed at the lower portion of the sprint 112 is more easily pushed into a hole formed in the road.

  Further, as shown in FIG. 3, a protruding wrench fastening portion 115 is formed inside the bolt fastening portion 111. After the wrench is inserted so as to be applied to the wrench fastening portion 115, the head 110 and the anchor rod 130 can be separated by rotating the wrench.

  In the anchor bar 130, a fastening part 132 is formed on the upper part of a cylindrical bar 131, and a fastening groove 134 is formed on the lower part of the bar 131. At this time, it is preferable that a protrusion 133 in the shape of a ring or screw protrudes from the outer peripheral surface of the bar 131 of the anchor bar 130. In this case, when the nut anchor 100 is inserted into the hole in the road filled with the adhesive and the adhesive is cured, the nut anchor 100 is fastened and fixed to the road by the protrusion 133.

  One or a plurality of anchor rods 130 can be continuously fastened depending on conditions such as the depth of a hole drilled in the road and the type of facility. That is, in order to fix the road facility to the road, the nut anchor 100 is inserted and fixed to the auxiliary base layer of the road to fix the road facility firmly, but the height is adjusted to the auxiliary base layer of each road. Thus, a large number of anchor bars 130 can be assembled and used.

  Further, as shown in FIGS. 1 to 3, it is desirable to fasten a cap 120 in the shape of a ring between the head 110 and the anchor bar 130. In this case, when the nut anchor 100 is inserted into the hole of the road filled with the adhesive, the adhesive may overflow the road surface, but the cap 120 prevents the adhesive from overflowing the road surface, Prevent rainwater from entering the lower part of the road. The cap 120 is preferably made of elastic rubber or synthetic resin, so that the cap 120 and the inner surface of the road hole are sealed by elasticity.

  Further, as shown in FIGS. 1 to 3, it is desirable that the end portion 140 is fastened to the lower portion of the anchor bar 130. The end portion 140 is formed with a fastening portion 141 formed on an upper portion of a rod 144 having a cylindrical shape, and a conical end 143 is formed on a lower stage of the rod 144, and the fastening portion 141 of the end portion 140 is formed. It is inserted and fastened into the fastening groove 134 of the anchor bar 130. The end portion 140 is more easily inserted by the cone-shaped end 143 formed in the lower stage when the nut anchor 100 is inserted into the hole drilled in the road.

  The nut anchor 100 configured in this way is constructed by the construction method of the road facility installation nut anchor of the embodiment of the present invention shown in FIGS. 4 to 7. First, as shown in FIG. 4, the road where the road facility is installed is perforated, and as shown in FIG. 5, the foreign matter in the perforated hole is removed using compressed air. An adhesive such as epoxy is injected into the perforated hole, and the nut anchor 100 is pushed into the hole filled with the adhesive and inserted as shown in FIG.

  As described above, when the nut anchor 100 is inserted into the hole in which the road is drilled, the splint 112 is pressed against the inside of the hole so that the nut anchor 100 is pushed in and the road facility to be fastened with the nut anchor 100 is removed. The nut anchor 100 exhibits sufficient adhesion strength for supporting and fixing.

  Thereafter, when the adhesive is cured, the adhesion strength of the nut anchor 100 is increased by the protrusions 133 and 142 formed on the outer peripheral surfaces of the anchor rod 130 and the end portion 140, and the road facility is firmly fixed.

  After installing a road facility using the nut anchor 100 in this way, when cutting a certain portion of road asphalt for road re-paving, etc., heavy equipment may be damaged or a safety accident may occur if the nut anchor 100 is not removed. May occur.

  In such a road re-paving work, the road facility fastened to the nut anchor 100 is disassembled, and then a wrench (not shown) is inserted into the bolt fastening portion 111 of the nut anchor 100, Is applied to the wrench fastening part 115 protruding into the bolt fastening part 111, and the wrench is rotated to remove the head 110 of the nut anchor 100. After removing the head 110 in this manner, the road can be safely cut and paved.

8 to 10 show a road separation mark as an example of a road facility according to the embodiment of the present invention.
As shown in FIG. 8, the road separation mark 200 is composed of a separated specimen displayed on the upper part of the road and a nut anchor 100 embedded in the road shown in FIGS.

  As shown in FIG. 8, the separated specimen displayed on the upper part of the road is provided with a fixed plate 211 coupled on the road and a vertical standing at the center of the fixed plate 211, and a predetermined number of pieces are disposed on the upper outer periphery. The separation mark 210 to which the reflection band 213 is attached and the fixing bolt 212 formed integrally with the separation mark 210 at the lower center of the fixing plate 211 are configured.

  The process of embedding the nut anchor 100 and the separated specimen body thus configured in the road will be described in detail. First, as shown in FIGS. 4 to 7, the nut anchor 100 is embedded in the road. As shown in FIG. 9, a fixed bolt 212 of a separated specimen is bolted to a bolt fastening portion 111 of a nut anchor 100 embedded in a road, so that a road separation mark 200 to a road is obtained as shown in FIG. 10. Installation of is finished.

  At this time, the separation specimen is rotated with a tool such as a wrench using the groove 214 formed in the separation specimen fixing plate 211 shown in FIG. 2 so that the fixing bolt 212 is firmly bolted to the nut anchor 100. It is desirable to do.

  The road separation mark 200 installed in this way is very easy to construct and maintain because the separated specimen body may be bolted by the nut anchor 100 buried deep in the road. Since the nut anchor 100 is pushed into the road, sufficient strength can be maintained even before the adhesive epoxy hardens. Even if the separation mark 210 is lost, a new separation specimen can be repaired by simply fastening the bolt to the nut anchor 100 that is already embedded in the road. it can.

  In the above, the nut anchor for road facility installation of the embodiment of the present invention, its construction method, and the road facility were explained. It will be understood from the technical configuration of the present invention that those skilled in the art to which the present invention pertains can be implemented in different specific forms without changing the technical idea or essential features. For this reason, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing detailed description. And all modifications or variations derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

DESCRIPTION OF SYMBOLS 100 Nut anchor 110 Head 111 Bolt fastening part 112 Sprint 113 Fastening groove 114 Taper part 115 Wrench fastening part 120 Cap 130 Anchor rod 131 Rod 132 Fastening part 133 Protrusion 134 Fastening groove 140 End part 141 Fastening part 142 Protrusion 143 End 144 Rod 200 Road Separator 210 Separator 211 Fixing plate 212 Fixing bolt 213 Reflection band

Claims (3)

A head (110) in which a bolt fastening part (111) is formed at the upper part, a fastening groove (113) is formed in the lower part, and a predetermined number of axial splints (112) are projected radially on the outer peripheral surface;
Fastening portions (132) and fastening grooves (134) are formed in the upper and lower portions of the rod (131), respectively, and the anchor rod (130) fastened to the head,
A nut anchor for road facility installation characterized by having. A construction method of the nut anchor for road facility installation according to claim 1,
After the road is perforated and the foreign matter in the perforated hole is removed, an adhesive is injected into the hole, and the head anchor can be removed from the anchor bar after the adhesive is cured. Inserting it into the hole filled with the adhesive,
A method for constructing a nut anchor for installing road facilities. A nut anchor for road facility installation according to claim 1,
In the lower part, a road facility main body in which a fixing bolt that can be fastened to the bolt fastening portion protrudes and is integrally formed,
Road facilities characterized by having.

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