Installation method for anchor bolts and road-related facilities

Abstract

To provide an anchor bolt which can be quickly used after being attached to an installation face.SOLUTION: An anchor bolt comprises an abutment part 2 abutting on an installation face, a male screw part 11 protruding to one side from the abutment part, and a burying part 5 for burying and fixing the anchor bolt while protruding to the other side from the abutment part. Regulation means 3 for regulating movement from the installation face is arranged at the abutment part, and the male screw part is non-rotatably attached to the abutment part. When fixing the burying part to the installation face by using a filler such as an adhesive, the movement of the anchor bolt 1 is regulated by the regulation means even before the filler is not hardened yet. Also, since the movement of the male screw part to the installation face is regulated by the abutment part which is possessed by the regulation means, work for screw-fastening a female screw member for fixing an installation matter such as road accessory equipment to the male screw part can be performed even before the filler is not hardened yet.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an anchor bolt used for installing roadside facilities such as roadside strips, and a method for installing roadside facilities using this anchor bolt.

Background Art

[0002] As a method for installing roadside facilities such as signs and fences on an installation surface such as a road surface, embedding members such as anchor bolts that are embedded and fixed to the installation surface are used, and various inventions related to such embedding members have been published.

[0003] For example, in Patent Document 1, there is an embedding member that is disposed in an embedding hole formed in an installation surface and is fixed in the embedding hole by a filling material that solidifies after being filled in the embedding hole. The embedding member includes a fastening portion having a male screw portion or a female screw portion, and a wall portion disposed outside the fastening portion. The wall portion is formed in a cylindrical shape, and the fastening portion is housed inside the wall portion, and a gap portion is formed between the outer surface of the fastening portion and the inner surface of the wall portion. The height position of the upper end of the wall portion is provided so as to be substantially flush with the installation surface, and the lower end of the wall portion is formed so as to be located above the lower end of the fastening portion. A configuration of the embedding member is disclosed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The embedded member shown in Patent Document 1 has a cylindrical wall portion on the outside of the fastening portion, which, after being fixed in an embedded hole provided in the installation surface with a filling material, prevents damage that occurs in the embedded hole when a large external force is applied from extending to the installation surface. However, with this embedded member, after being placed in the embedded hole, it was necessary to wait until the filling material hardened before proceeding with the installation of the structure.

[0006] This invention provides an anchor bolt that can be used immediately after being attached to the mounting surface. [Means for solving the problem]

[0007] To achieve the above objective, the present invention has the following configuration. In other words, the anchor bolt according to the present invention comprises a contact portion that abuts against the installation surface, a male threaded portion that protrudes to one side from the contact portion, and an embedded portion that protrudes to the other side from the contact portion and is embedded and fixed, wherein a restricting means for restricting movement from the installation surface is provided on the contact portion, and the male threaded portion is attached to the contact portion in a manner that prevents rotation.

[0008] The anchor bolt according to the present invention comprises a contact portion that abuts against the installation surface, a male threaded portion that protrudes to one side from the contact portion, and an embedded portion that protrudes to the other side from the contact portion and is embedded and fixed. A restricting means for restricting movement from the installation surface is provided on the contact portion. Therefore, when the embedded portion is fixed to the installation surface using a filler such as an adhesive, the movement of the anchor bolt is restricted by the restricting means even before the filler hardens. Furthermore, since the male threaded portion is attached to the contact portion in a way that prevents rotation, the movement of the male threaded portion relative to the installation surface is restricted by the contact portion equipped with the restricting means. Therefore, even before the filler material hardens, it is possible to screw a female threaded member for fixing road-related equipment or other installations onto the male threaded portion.

[0009] Furthermore, if the restricting means is any of the adhesives, adhesives, double-sided tapes, and adhesive tapes applied to or attached to the installation surface, the movement of the contact portion can be easily restricted, which is preferable.

[0010] Furthermore, if the restricting means is an insertion member such as a male screw or nail that is inserted into the installation surface, the movement of the contact portion can be quickly restricted, which is preferable.

[0011] Furthermore, it is preferable to form the male threaded portion with a male threaded member, provide the contact portion with a first female threaded portion to which the male thread of the male threaded member can be screwed, and form the embedded portion with a female threaded member having a second female threaded portion to which the male thread can be screwed, because the male thread can be used to easily integrate the male threaded portion, the contact portion, and the embedded portion. Also, it is preferable to screw the first female threaded portion and the second female threaded portion into the male threaded member, and tighten one of the female threaded portions toward the other female threaded portion to prevent the male threaded portion from rotating relative to the contact portion, because this prevents problems such as the male threaded portion rotating and loosening relative to the contact portion when screwing other female threaded members for fixing road-related equipment or other installations to the male threaded portion.

[0012] If road-related equipment is installed on the installation surface using the anchor bolts, whose movement from the installation surface at the contact point is restricted by the aforementioned restricting means, the installation work of the road-related equipment can be carried out before the filler material filled into the installation surface hardens, thus shortening the work time, which is preferable. [Effects of the Invention]

[0013] According to the anchor bolt of the present invention, after being attached to the installation surface, it can be quickly used for installation work of road-related facilities and the like. [Brief explanation of the drawing]

[0014] [Figure 1] This is a front view showing one embodiment of an anchor bolt according to the present invention. [Figure 2] This is a plan view of Figure 1. [Figure 3] This is a cross-sectional view AA in Figure 2. [Figure 4] It is a view showing a state in which the male screw member, the contact portion, and the embedded portion in FIG. 1 are separated. [Figure 5] It is a front view showing the contact portion in FIG. 4. [Figure 6] It is a bottom view of FIG. 5. [Figure 7] It is a perspective view showing the cylindrical member in FIG. 4. [Figure 8] It is a plan view of FIG. 7. [Figure 9] It is a sectional view taken along the line A-A of FIG. 8. [Figure 10] It is an enlarged view of the vicinity of the first female screw portion in FIG. 3. [[ID=2二十二]] [Figure 11] It is a view showing a state in which the anchor bolt in FIG. 3 is attached to the installation surface. [Figure 12] It is an enlarged view showing the vicinity of the regulating means of the contact portion in FIG. 11. [Figure 13] It is an enlarged view showing the contact portion of the anchor bolt provided with regulating means different from those in FIG. 11.

Mode for Carrying Out the Invention

[0015] Embodiments of the invention will be specifically described based on the drawings. FIG. 1 is a front view showing an embodiment of an anchor bolt 1 according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a sectional view taken along the line A-A of FIG. 2. The anchor bolt 1 shown in FIGS. 1 to 3 includes a contact portion 2 that abuts on the installation surface G, a male screw portion 11 that protrudes upward from the contact portion 2, and an embedded portion 5 that is embedded and fixed to the installation surface G. The contact portion 2 is provided with regulating means 3 for regulating movement from the installation surface G at a portion that abuts on the installation surface G. The embedded portion 5 includes female screw members 6 and 7 and a cylindrical member 8 that are disposed below the contact portion 2.

[0016] The aforementioned male threaded portion 11 is a male threaded portion used for installing road-related facilities and other installations, and is formed by a separate male threaded member 10 from the respective members constituting the contact portion 2 and the buried portion 5. The male threaded member 10 shown in Figures 1 to 3 is a so-called fully threaded bolt, and the male thread of this male threaded member 10 is screwed into the first female threaded portion 21 formed in the contact portion 2 and the second female threaded portion formed in the member constituting the buried portion 5.

[0017] The buried portion 5 shown in Figures 1-3 comprises a female threaded member 6, a female threaded member 7, and a cylindrical member 8. The female threaded members 6 and 7 are formed from an anchor nut and a hexagonal nut into which the male thread of the male threaded member 10 can be screwed, and each has a second female threaded portion 61 and a second female threaded portion 71, respectively. The embedded portion 5 is attached to the contact portion 2 by screwing the female thread member 7 and the female thread member 6 onto the male thread member 10 which is inserted through the cylindrical member 8. In other words, by unscrewing the male screw member 10, the individual members and contact portion 2 constituting the embedded portion 5 can be separated. Figure 4 shows the male screw member 10, contact portion 2, and embedded portion 5 separated from those in Figure 1.

[0018] Figure 5 is a front view showing the contact portion 2 of Figure 4, and Figure 6 is a bottom view of Figure 5. The contact portion 2 is provided in a substantially flat plate shape with an outer shape that is roughly cross-shaped when viewed from the bottom. The contact portion 2 is made of a metal plate, specifically a steel plate. The contact portion 2 is provided so that its end contacts the installation surface G, and the regulating means 3 is provided at this portion. The regulating means 3 shown in Figures 5 and 6 is made of so-called double-sided tape 31 and is attached to the lower surface of the end of the contact portion 2. A circular through-hole 22 that penetrates in the vertical direction is formed at the end of the contact portion 2, and the double-sided tape 31 is attached so as to close the lower opening of this through-hole 22. Furthermore, the first female thread portion 21 is positioned in the center of the contact portion 2, and the female thread is provided on the inside of the through hole formed by burring to form the first female thread portion 21.

[0019] Figure 7 is a perspective view showing the cylindrical member 8 in Figure 4, Figure 8 is a plan view of Figure 7, and Figure 9 is a cross-sectional view of AA in Figure 8. The cylindrical member 8 comprises a connecting portion 85 provided in a substantially disc shape and a cylindrical wall 81 formed in a substantially cylindrical shape by extending downward from the entire circumference of its outer edge. Specifically, the connecting portion 85 and the cylindrical wall 81 are formed by press-forming a single metal plate. The connecting portion 85 has a circular through-hole 86 positioned in the center that penetrates vertically, and is sized to allow the male thread of the male thread member 10 to pass through. Furthermore, the connecting portion 81 has two through-holes 87 that are roughly fan-shaped and penetrate in the vertical direction, with each through-hole 87 positioned on either side of the through-hole 86.

[0020] Figure 10 is an enlarged view of the area around the first female thread portion 21 in Figure 3. The cylindrical member 8 has a male threaded member 10 inserted through the through hole 86, and is attached by sandwiching a connecting portion 85 between a contact portion 2, which has a first female threaded portion 21 screwed onto the male thread, and a female threaded member 7, which has a second female threaded portion 71 screwed onto it. The embedded portion 5 is secured by screwing the female threaded member 7, which is screwed onto the male threaded member 10, toward the contact portion 2, and further securing the female threaded member 6, which is screwed onto the male threaded member 10, toward the female threaded member 7. By screwing the female thread member 7 and female thread member 6, each having a second female thread portion, toward the contact portion 2 having a first female thread portion 21, the rotation of the male thread member 10 relative to the contact portion 2 is restricted.

[0021] Figure 11 shows the anchor bolt 1 from Figure 3 attached to the installation surface G. Figure 11 shows an anchor bolt 1 in which a circular recessed hole H is formed in the installation surface G, a filler material F is poured into this hole H and filled up to the vicinity of the installation surface G, and the embedded portion 5 is inserted into the filler material F before the filler material F hardens. The filler material F used to fix the embedded member 1 can be selected from or combined from various materials that harden from a fluid state, such as mortar, cement, or synthetic resin adhesives.

[0022] The anchor bolt 1 shown in Figure 11 has the end of its contact portion 2 resting on the installation surface G, and its movement relative to the installation surface G is restricted by the regulating means 3. Figure 12 is a magnified view showing the area around the regulating means 3 of the contact portion 2 in Figure 11. The contact portion 2 shown in Figure 12 is attached to the installation surface G by double-sided tape 31 which constitutes the restricting means 3, and its movement relative to the installation surface G is restricted. Therefore, even when the anchor bolt 1 shown in Figure 11 is threaded to the male threaded portion 11 before the filler material F hardens, problems such as fluctuations in the position of the anchor bolt 1 can be suppressed. Furthermore, since the anchor bolt 1 shown in Figure 11 has a male threaded portion 11 that is not rotatable relative to the contact portion 2, even if the work of screwing a female thread or the like into the male threaded portion 11 is performed before the filler material F hardens, it is possible to suppress the occurrence of problems such as the male threaded portion 11 spinning freely.

[0023] The anchor bolt 1 shown in Figure 11 can be suitably used for installing road-related facilities such as markers and fences, thanks to its male threaded portion 11. Installation work for road infrastructure may require restricting vehicle traffic, and in cases such as repairing road infrastructure damaged by vehicle accidents, minimizing the time required for such work is extremely important. The anchor bolt 1 shown in Figure 11 allows work to be performed using the male threaded portion 11 before the filler material F filled in the embedded hole H hardens, thus effectively shortening the above work time. Furthermore, the term "road-related facilities" as used herein refers to road surfaces, and items, structures, and equipment such as markers and fences installed near roads.

[0024] As shown in Figure 11, the anchor bolt 1 is more firmly fixed to the installation surface when the filler material F hardens, with the embedded portion 5 placed in the embedded hole H being secured to the installation surface. The embedded portion 5 is provided such that the cylindrical wall 81 of the cylindrical member 8 surrounds the outside of the female screw members 6 and 7, and the filler material F is filled so as to seal the gap between each female screw member 6, 7 and the cylindrical wall 81. By arranging it in this way, when the anchor bolt 1 is subjected to a large external force via the male threaded member 10 and the filler material F is damaged, the cylindrical wall 81 blocks the cracks and fissures that occur in the filler material F, thereby suppressing damage to the filler material F outside the cylindrical wall 81 and to the members constituting the installation surface G. In other words, the cylindrical wall 81 can suppress the spread of damage to the filler material F, and the resulting damage can be limited to the area within the buried hole H.

[0025] The restricting means 3 shown in Figures 11 and 12 is formed from double-sided tape 31, but other means that can restrict the movement of the contact portion 2 may be used. For example, the restricting means 3 may be formed from adhesive or a bonding agent applied to the lower surface of the contact portion 2, or it may be composed of adhesive tape attached so as to span between the upper surface of the contact portion 2 and the installation surface G. Furthermore, when the regulating means 3 is composed of an adhesive, various adhesives that cure in a shorter time than the curing time of the filler F can be selected or combined and used, and so-called instant adhesives with an extremely short curing time can be suitably used.

[0026] The restricting means 3 may be composed of a member that can be inserted into the installation surface G, rather than a member that is adhered or fixed to the installation surface G. For example, an insertion member such as a male threaded member having a male thread that can be screwed into the mounting surface G, or a nail that can be driven into and inserted into the mounting surface G, may be used. Figure 13 is a magnified view of the contact portion 2 of the anchor bolt 1, which is equipped with a different regulating means 3 than that shown in Figure 11. The contact portion 2 shown in Figure 13 does not have double-sided tape 31 attached to its lower surface, and a regulating means 3 consisting of a male screw member 32 is inserted through a through hole 21 formed at its end. The male threaded member 32 is formed from a so-called asphalt screw anchor, and its male threaded portion is screwed into the installation surface G to restrict the movement of the contact portion 2 from the installation surface G. When the aforementioned insertion member constitutes the regulating means 3, concrete screws, concrete nails, etc., can be selected or combined with the above-mentioned asphalt screw anchors, depending on the material of the installation surface G and the conditions of the installation location.

[0027] Furthermore, the anchor bolt 1 according to the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, the anchor bolt 1 shown in Figures 1-3 includes a cylindrical member 8 with a cylindrical wall 81 positioned on the outside of the female threaded members 6 and 7, but it is not limited to this, and the cylindrical member 8 may be omitted.

[0028] Furthermore, in the anchor bolt 1 shown in Figures 1 to 3, the female threaded members 7 and 6 constituting the embedded portion 5 are screwed onto the male threaded member 10 and tightened toward the contact portion 2. However, this is not the only method; either the female threaded member 6 or the female threaded member 7 may be screwed toward the contact portion 2, or three or more female threaded members may be screwed together. However, as shown in Figures 3 and 10, by using the female threaded member 7, which is made of a hexagonal nut, as the female threaded member that is positioned closest to the contact portion 2 and tightened, it is possible to easily tighten it with an appropriate torque corresponding to the male thread of the male threaded member 10, thereby firmly fixing the female threaded member 7 and effectively restricting the rotation of the male threaded member 10 relative to the contact portion 2. In addition, by using the female threaded member 7, which is made of a hexagonal nut, as the female threaded member that is positioned closest to the contact portion 2 and tightened, the female threaded member 7 is provided so that it contacts the upper part such as the connecting portion 85 with a sufficiently large area. By providing this configuration, the female screw member 7, which is tightened and screwed toward the contact portion 2, becomes less likely to loosen, thereby effectively restricting the rotation of the male screw member 10 relative to the contact portion 2. Furthermore, it is preferable to use a so-called anchor nut, such as the female threaded member 6, in the female threaded member that constitutes the embedded portion 5, as this effectively prevents the detachment from the filler material F.

[0029] Furthermore, although the anchor bolt 1 shown in Figures 1-3 has its female threaded portion 21 screwed into the male threaded member 10 to attach the contact portion 2, it is not limited to this, and the male threaded member 10 may be attached to the contact portion 2 in a way that prevents rotation by welding or engaging with the contact portion 2. [Explanation of symbols]

[0030] 1 Anchor bolt 10 Male threaded member 11 Male threaded section 2 Contact part 21 First female thread section 22 Through hole 3. Regulatory measures 31 Double-sided tape 32 Male threaded member 5. Buried section 6 Female threaded member 61 Second female thread section 7 Female threaded member 71 Second female thread section 8. Cylindrical member 81 Cylinder wall 85 Connection part 86 Through hole 87 Through hole

Claims

1. An anchor bolt comprising a contact portion that abuts against an installation surface, a male threaded portion that protrudes to one side from the contact portion, and an embedded portion that protrudes to the other side from the contact portion and is embedded and fixed, wherein a restricting means for restricting movement from the installation surface is provided on the contact portion, and the male threaded portion is attached to the contact portion in a way that prevents rotation.

2. The anchor bolt according to claim 1, characterized in that the restricting means is one of an adhesive, adhesive, double-sided tape, and adhesive tape applied to or attached to the installation surface.

3. The anchor bolt according to claim 1, characterized in that the regulating means is an insertion member inserted into the installation surface.

4. The aforementioned male threaded portion is formed by a male threaded member, The contact portion includes a first female threaded portion to which the male thread of the male threaded member can be screwed, The embedded portion is formed of a female thread member having a second female thread portion to which the male thread can be screwed, The anchor bolt according to any one of claims 1 to 3, characterized in that the first female thread portion and the second female thread portion are screwed into the male thread member, and one female thread portion is tightened toward the other female thread portion so that the male thread portion cannot rotate relative to the contact portion.

5. A method for installing road ancillary equipment, characterized by installing it on an installation surface using an anchor bolt according to claim 1, wherein the movement of the contact portion from the installation surface is restricted by the aforementioned restricting means.

Images