JP5210255B2 - Method for forming embedding hole for embedding fixing tool for columnar body and fixing tool for columnar body - Google Patents

Description

  The present invention is intended for use in markings such as a center separation line between upper and lower roads, a boundary marking between a roadway and a sidewalk, a road marking column used for marking a parking stop such as a park or a street, and a columnar body such as a protective fence column. The present invention relates to a method for forming an embedding hole for embedding a fixing tool and a fixing tool for a columnar body.

  Conventionally, for a road marking body installed on a center line or the like which is an example of a columnar body, for example, in Patent Document 1, an external column, an internal column, and anchor bolts for fixing a road surface are poured into a liquid reactive curable resin raw material. A columnar body that is a line-of-sight-inducing marker column manufactured by molding and curing and integrating and forming a base portion is disclosed.

  As yet another preferred embodiment, the base has a mounting portion on which a bolt that is screwed into a female screw formed on an anchor embedded in the ground is embedded and a jig for rotating the base is mounted. What is provided is listed. By embedding a bolt in the base, it can be screwed into a female screw formed on the anchor. That is, the work of attaching or removing the sign post on the road surface is facilitated.

JP 2004-250997 A

  However, the conventional columnar body is perforated into the ground, and a liquid reactive curable resin raw material is cast therein, and a columnar anchor is embedded to cure and integrate the reactive curable resin raw material. Since the sign pillar is installed on the road surface or road surface by screwing the bolt integrated with the lower part of the sign pillar to the female screw formed on the cylindrical anchor, When attaching and detaching from the columnar anchor, it is necessary to rotate the marker column. When the attachment and detachment are repeated many times over a long period of time, the reaction force is applied to the reaction curable resin at the interface between the reaction curable resin raw material and the road surface. There may be a problem that the raw material is peeled off.

  The present invention solves the above-mentioned problems, and even when subjected to repeated rotating force, the columnar body fixing tool and the embedding hole for embedding the columnar body fixing tool which are not easily separated from the road surface It is intended to provide a forming method.

In order to achieve the above object, the present invention is configured as follows.
That is, the fixing tool for a columnar body according to the present invention is embedded in the ground to stand and fix the columnar body on the road surface, and has a mounting hole to which a convex portion protruding from the lower surface of the columnar body is attached. A fixing device for a columnar body, wherein the fixing device is integrated with at least two short columnar bodies having the same shape in plan view by overlapping the side portions, and at the intersecting portion of the short columnar bodies. The attachment hole to which the convex part of the body is attached is formed.

  Moreover, the fixing tool for columnar bodies according to the present invention is characterized in that the short columnar body having the same shape in plan view is a cylinder.

  The fixing device for a columnar body according to the present invention is characterized in that the short columnar body having the same shape in plan view is a prism.

  The method of forming the embedding hole for embedding the fixing member for a columnar body according to the present invention comprises: drilling a road surface at least twice with a rotary drilling tool having a diameter larger than a circle in a plan view of a cylinder; The embedding hole is formed in a shape approximately similar to the shape of the fixture for use.

  According to the present invention, at least two short columnar bodies having the same shape in plan view are integrated by polymerizing the side portions, and at the intersection of the short columnar bodies, the columnar body fixing tool is integrated. Since the mounting hole for attaching the convex portion is formed, the fixture is non-circular in plan view even if the rotational force acts on the fixture when the columnar body is rotated and detached from the embedded portion main body. Thus, the fixing body that fixes the fixing device such as the mortar or the adhesive filled around the fixing device and the road surface is difficult to peel off.

  In addition, according to the present invention, the columnar body fixture has a columnar body having the same shape in plan view as a cylinder or a prism, and therefore has a larger side surface area than a single columnar body fixture. Therefore, the fixture and the road surface are more firmly fixed.

  Further, according to the method for forming the embedding hole for embedding the fixing member for the columnar body according to the present invention, the road surface is drilled at least twice with a rotary drilling tool having a diameter larger than that of the circular cylinder in plan view, Since the embedded hole is formed in a shape approximately similar to the shape of the fixing member for the columnar body, the hole for the fixing member of the columnar body is formed by using a rotary punching device that drills the road surface in a circular shape that has been conventionally used. Therefore, it is possible to efficiently drill without requiring a special dedicated tool, and therefore the construction efficiency is improved.

It is a perspective view which shows one Embodiment of the fixing tool for columnar bodies which concerns on this invention. 1, (a) is a front view, (b) is a plan view, (c) is a rear view, (d) is a bottom view, (e) is a left side view, and (f) is a right side view. (G) is an AA cross-sectional view. (A)-(c) is a perspective view which shows another form of implementation of the fixing tool for columnar bodies which concerns on this invention. It is sectional drawing which shows the state which installed the columnar body in the road surface using the fixing tool for columnar bodies which concerns on this invention. (A)-(c) is explanatory drawing which shows the shape of the embedding hole for embedding the fixing tool for columnar bodies which concerns on this invention. It is explanatory drawing which shows another form of the structure which attaches a columnar body and a fixing tool. It is explanatory drawing which looked at FIG. 6 from the lower side. 6 (a) is a front view, (b) is a plan view, (c) is a rear view, (d) is a bottom view, (e) is a left side view, and (f) is a right side view. FIG.

Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.
The fixing member P for the columnar body according to the present invention is embedded in the ground to stand and fix the columnar body 1 on the road surface G, and is attached to the convex portion 12 protruding from the lower surface 11 of the columnar body 1. The hole 2 is formed, and the fixture P is integrated with two short columns 3 having the same shape in plan view by overlapping the side portions 31, and the intersection 32 where the short columns 3 are overlapped. The mounting hole 2 to which the convex portion 12 of the columnar body 1 is attached is formed.

  The shape of the short columnar body 3 forming the fixture P in plan view may be circular as shown in FIG. 1 or square as shown in FIG. It is only necessary that the short columns 3 having the same shape as viewed are integrated by polymerizing the side portions 31. In addition, the number of short pillars 3 to be polymerized may be at least two, and may be four as shown in FIGS. 3A and 3C, or as shown in FIG. 3 may be sufficient. Even if the number of the short column bodies 3 is 5 or more, there is no particular problem. However, if the number of the short pillars 3 is too large, when manufacturing the fixing tool P or drilling the embedded hole 4 for embedding the fixing tool P in the ground, Since it takes time and effort, the number of short columns 3 is preferably about 2 to 6.

  The mounting hole 2 is provided in the approximate center of the intersection 32, and in this embodiment, a female screw 21 is formed. An anchor bolt 12 made of an external thread, which is a convex portion 12 projecting from a lower surface 11 of a columnar body 1 to be described later, is screwed into an attachment hole 2 formed in a fixture P embedded in a road surface G, The columnar body 1 can be erected.

  The fixing structure between the fixing tool P and the columnar body 1 is such that the anchor bolt 12 is screwed into the female screw 21 provided in the mounting hole 2 of the fixing tool P in this embodiment, but is not limited thereto. It is not something. That is, as shown to FIGS. 6-8, while forming the two fitting holes 22 in the attachment hole 2 of the fixing tool P, the fitting protrusion 121 of the convex part 12 of the columnar body 1 mentioned later is formed in the back | inner side. Are fitted and slidable, and the two fitting protrusions 121 formed on the side surface of the convex portion 12 of the columnar body 1 are inserted into the fitting holes 22 so that the columnar body 1 is The columnar body 1 and the fixture P are fixed by rotating along the fitting groove 23.

  One notch 33 is formed in the lower part of the side surface 31 of the fixture P of the columnar body 1. When the fixing member P is embedded, the notch 33 is filled with the fixing material 5 when the road surface G and the fixing device P are fixed to each other with the fixing material 5 such as mortar or adhesive. The fixing tool P is made more difficult to come off from the road surface G.

Next, the formation method of the embedding hole 4 for embedding the fixing tool P in the road surface G is demonstrated.
When the shape of the fixture P in plan view is two intersecting circles of the same diameter, a rotary drilling tool conventionally used, for example, a bit (blade) with a diamond tip attached to the tip of the drill is attached. The first hole 41 is opened at one location on the road surface G with a rotary drilling tool having a diameter slightly larger than the circle of the fixing tool P in a plan view, and then the shape of the fixing tool P is used. The second hole 42 is drilled in a substantially similar shape. In this way, if the embedded hole 4 is formed in a shape substantially similar to the shape of the fixture P of the columnar body 1, without using a special drilling tool, simply drilling twice using a conventional drilling tool, Since the embedding hole 4 for embedding the fixture P of the columnar body 1 according to the present invention can be formed, the working efficiency is extremely good. Of course, when the plan view shape of the fixture P is made of three circles having the same diameter, it may be drilled three times in the same manner, and the plan view shape of the fixture P may be four pieces having the same diameter. In the case of a circle, it is only necessary to drill four times.

Next, the columnar body 1 erected on the road surface G via the fixture P will be described.
The columnar body 1 is a cylindrical hollow columnar body, the upper end portion 14 of the main body 13 is integrated with the cap C by rotational fusion, and the base portion 15 is integrated with the lower end portion by rotational fusion. The anchor bolt 12 described above protrudes from the lower end of the portion 15.

  The anchor bolt 12 is implanted at the same time when the base portion 15 is molded, and the inner side surface of the main body portion 13 is rotationally fused with the outer side surface of the insertion portion of the base portion 15. A reinforcing member 16 having an outer diameter slightly smaller than the inner diameter of the columnar body 1 is integrally formed with the base portion 15 on the inner side of the main body portion 13 to reinforce the strength of the root portion where stress is concentrated and reduce bending. An outer peripheral wall 17 that is integrally formed with the base portion 15 is provided outside the fused portion, so that the fused portion is concealed to improve the appearance and prevent the bonding strength of the fused portion from being lowered. ing.

  The reinforcing material 16 is formed separately from the base portion 15 and joined to the base portion 15 by rotational fusion. By forming the reinforcing material 16 separately from the base portion 15, the shape of the base portion molding die is simplified, and the reinforcing material 16 can be molded by extrusion.

  The columnar body 1 may be elastic as described above, or may be a metal columnar body that does not have elasticity, such as a steel guard fence post or a steel car stopper. .

  According to the present invention, even when the rotational force when the columnar body is rotated to be attached to and detached from the embedded portion main body acts on the fixture, the fixture is filled around the fixture because it is non-circular in plan view. A fixing body for fixing a fixing tool such as a mortar or an adhesive to a road surface can be suitably used as a fixing tool for a columnar body that is difficult to peel off.

DESCRIPTION OF SYMBOLS 1 Columnar body 11 Lower surface 12 Convex-shaped part 121 Main part 14 Main body part 14 Upper end part 15 Base part 16 Reinforcement material 17 Outer peripheral wall 2 Mounting hole 21 Female screw 22 Fitting hole 23 Fitting groove 3 Short column body 31 Side part 32 Intersection 33 Notch 4 Buried hole 41 First hole 42 Second hole 5 Fixing agent P Fixing tool G Road surface C Cap

Claims (4)

  A fixing tool for a columnar body, which is embedded in the ground for standing and fixing the columnar body on a road surface, and has a mounting hole to which a convex portion protruding from the lower surface of the columnar body is formed, The at least two short columnar bodies having the same shape in plan view are integrated by polymerizing the side portions, and the mounting holes for mounting the convex portions of the columnar bodies are formed at the intersections of the short columnar bodies. The fixing tool for columnar bodies characterized by being made.   The fixture for a columnar body according to claim 1, wherein the short columnar body having the same shape in plan view is a cylinder.   The fixture for a columnar body according to claim 1, wherein the short columnar body having the same shape in plan view is a prism.   A method for forming an embedding hole for embedding the fixing member for a columnar body according to claim 2 in the ground, wherein the road surface is drilled at least twice with a rotary drilling tool having a diameter larger than a circle in a plan view of a cylinder. A method for forming an embedding hole for embedding a fixing member for a columnar body, wherein the embedding hole is formed in a shape substantially similar to the shape of the fixing member for a columnar body.

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