Base and marker

Abstract

To provide a pedestal that can firmly adhere and fix a sign body to a placement location made of concrete.SOLUTION: A pedestal that is arranged between a sign body and a placement surface, and is adhered and fixed to a placement surface comprises: a base part whose lower surface is an adhesive surface; and a threaded part formed above the lower surface. The pedestal is provided so as to be detachably attached to the sign body through the threaded part. The base part is made of metal materials. The pedestal is removably attached to the sign body through the threaded portion, and can be easily fixed to the placement surface by adhering the lower surface of the base. In addition, since the base part is made of metal materials, even when it is fixed by adhesives to a concrete placement location, the extent of thermal expansion and contraction of the base part caused by seasonal and day / night temperature changes is made to be approximately the same as the thermal expansion and contraction that occurs on the placement surface, making it unlikely that the base part comes off the placement surface.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a pedestal for adhesively fixing a marker to a place where vehicles travel, such as a road or a parking lot.

Background Art

[0002] Markers installed on roads or parking lots for marking the center line of a lane, lane guiding signs, signs for regulating driving, etc. are fixed to the installation location by a method suitable for the installation location and purpose. For example, methods of fixing with anchor bolts or adhesives have been conventionally used, and various inventions have been proposed for the method using an adhesive.

[0003] For example, in Patent Document 1, a base portion having a hollowed-out portion with an opening on the surface and a main body portion protruding upward from the base portion are provided, and a first anchor bolt for fixing the base portion by screwing it to an anchor nut buried and fixed on a road surface is detachably attached. A method of attaching a road marker to a road surface by adhesion, in which a bottom plate member formed to close the opening of the hollowed-out portion is attached to the lower surface of the base portion through the attachment portion and adhered to the road surface by an adhesive applied to the bottom surface of the bottom plate member, has been proposed by the present applicant.

Prior Art Documents

Patent Documents

[0004] <00**********19>

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The fixing method shown in Patent Document 1 is designed to firmly adhere and fix the road marking to the road surface using a base plate attached to the base portion. However, there was a need for a marking structure that could adhere and fix more firmly to installation locations made of concrete.

[0006] The present invention provides a base that can be firmly adhered and fixed to an installation site made of concrete, and a sign body to which this base is attached. [Means for solving the problem]

[0007] To achieve the above objective, the present invention has the following configuration. In other words, the base according to the present invention is a base that is placed between a sign body and an installation surface and is adhesively fixed to the installation surface, comprising a base whose lower surface is an adhesive surface and a threaded portion formed above the lower surface, and is provided to be detachably attached to the sign body via the threaded portion, and the base is made of a metal material. The base has one screw portion, and the marker has a separate screw member, which is screwed onto the one screw portion so that the base, which is made of a metal material, can be detachably attached to the marker, which is made separately. Its defining characteristic is its presence.

[0008] The base according to the present invention comprises a base portion with an adhesive surface on its lower surface and a threaded portion formed above the lower surface, and is provided to be detachably attached to the sign body via this threaded portion, so that it can be easily attached to the sign body and fixed to the installation surface by adhesive. Furthermore, since the base is made of a metal material, even when it is bonded and fixed to an installation site made of concrete, the magnitude of thermal expansion and contraction of the base caused by seasonal and diurnal temperature changes is approximately the same as the thermal expansion and contraction that occurs on the installation surface, making it difficult for the base to detach from the installation surface.

[0009] Furthermore, if one threaded portion is formed on the base, and a separate threaded member is provided, and this threaded member is screwed onto the threaded portion to allow for detachable attachment to the marker, the thermal expansion and contraction of the base caused by temperature changes due to day and night or seasons will not be hindered by the attachment portion to the marker. By providing it in this way, even if the base is adhesively fixed to an installation site made of concrete, the difference in the magnitude of thermal expansion and contraction between the base and the installation surface can be made smaller, and the base will not easily detach from the installation surface.

[0010] Furthermore, if the base is formed to be smaller than the lower surface of the marker body, the entire edge of the base is positioned so that it is hidden beneath the marker body. This prevents the wheels from directly contacting the base of the pedestal even if a vehicle comes into contact with the marker body, making it less likely for the pedestal to detach from the mounting surface, which is preferable. [Effects of the Invention]

[0011] The base according to the present invention and the marker body to which this base is attached can be firmly adhered and fixed to an installation site made of concrete. [Brief explanation of the drawing]

[0012] [Figure 1] This is a front view showing one embodiment of the marker according to the present invention. [Figure 2] This is a bottom view of Figure 1. [Figure 3] This figure shows the column and base separated from each other, as shown in Figure 1. [Figure 4] This figure shows the base and pedestal separated from Figure 3. [Figure 5] Figure 4 is a front view showing the base. [Figure 6] Figure 5 is a plan view. [Figure 7] Figure 6, section AA, shows a longitudinal section of the base. [Figure 8] This figure shows the base of Figure 7 in place. [Figure 9]It is a figure showing a state where the base of the marking body is placed on the pedestal of FIG. 8. [Figure 10] It is a figure showing a state where the base is attached to the pedestal of FIG. 9.

Embodiments for Carrying Out the Invention

[0013] Embodiments of the present invention will be specifically described based on the drawings. In the drawings, 1 is a marking body. The marking body 1 shown in FIG. 1 includes a column body 10 and a base 2, and is formed by standing the column body 10 so as to project upward from the base 2. A pedestal 5 is attached to the lower surface of the base 2 of the marking body 1.

[0014] The column body 10 includes a column portion 11 formed as a cylindrical hollow columnar body, and a cap 12 is fixed so as to close the opening upper end thereof. Further, a retroreflective sheet 14 having a retroreflective property of reflecting the irradiated light in the direction of the light source is adhered to the outer surface of the column portion 11. The retroreflective sheet 14 is wound around and adhered to the outer surface of the column portion 11, and as shown in FIG. 1, three retroreflective sheets 14 are arranged on the column portion 11 at intervals in the vertical direction.

[0015] The column body 10 is formed of a thermoplastic polyurethane resin for the column portion 11 so as to be elastically bent by contact with a vehicle or the like and then restored to its original state, but is not limited thereto, and soft polyolefin, elastomer, etc. can be preferably used. Further, the cap 12 is also formed of the same thermoplastic polyurethane resin as the column portion 11 and is fixed to the column portion 11 by a method such as fusion or adhesion.

[0016] FIG. 2 is a bottom view of FIG. 1. Base 2 has a rectangular shape when viewed from below, with the entire shape composed of curves, and its size in the front-to-back direction is larger than that in the left-to-right direction. Base 2 is made of acrylonitrile-styrene-acrylate resin (ASA resin), which is harder than the column 10, but is not limited to this, and may be formed by selecting or combining synthetic resins other than ASA resin. The column 10 is detachably attached to the base 2. Furthermore, a base 5 having a disc-shaped base 51 is detachably attached to the underside of the base 2.

[0017] Figure 3 shows the column section 11 and base 2 separated from each other as shown in Figure 1. A base portion 15 is provided at the lower end of the column 10. Specifically, the base portion 15 is formed in a substantially cylindrical shape, separate from the column portion 11, and is fixed to the lower end of the column portion 11.

[0018] The upper part of the base 2 is provided with a support recess 21 that is recessed in a shape corresponding to the base portion 15, and the support recess 21 is formed so that the base portion 15 can be inserted into and out of it freely. The inner circumferential surface of the support recess 21 is formed as a support surface 23 capable of supporting the outer circumferential surface 15a of the inserted base portion 15, and the column 10, with the base portion 15 inserted into the support recess 21 of the base 2, is erected with its lower end supported by the support surface 23 of the base 2. Furthermore, the outer circumferential surface 15a of the base portion 15 has multiple rectangular projections 15b that protrude outward in the diameter direction, and each projection 15b is engaged with an engaging portion formed on the support surface 23 of the base 2 to attach the column 10 to the base 2. In other words, the column 10 can be removed from the base 2 by releasing the engagement between each projection 15b and the engaging portion formed on the support surface 23. The support recess 21 and support surface 23 formed in the base 2 are shown in Figures 9 and 10, which will be described later.

[0019] Figure 4 shows the base 2 and pedestal 5 separated from the base 2 in Figure 3. The base 5 has a threaded portion 53 consisting of a male screw that protrudes upward from the base portion 51, and is attached to the base 2 via this threaded portion 53. Specifically, the base 5 is attached to the base 2 by inserting the threaded portion 53 through the base 2 from below and screwing the threaded member 58, which has an internal thread, into the threaded portion 53 from above the base 2.

[0020] Figure 5 is a front view showing the base 5 in Figure 4, Figure 6 is a plan view of Figure 5, and Figure 7 is a cross-sectional view AA of Figure 6 showing the longitudinal section of the base 5. The base 5 has a disc-shaped base 51 with one through hole 51a near the edge, and a bolt is fixed to the center of the base 51 to form the threaded portion 53. Specifically, the male thread of the bolt is inserted through the base 51 from below, forming the threaded portion 53 that protrudes upward from the base 51.

[0021] The bolt is a so-called weld bolt having a disc-shaped head 54, and the head 54 is welded and fixed to a metal base 51. A circular recessed storage section 52 is formed on the lower surface of the base 51 by press forming, and the head 54 of the bolt is housed inside this storage section 52. Although the base portion 51 is formed from a stainless steel plate, it is not limited to this, and any metal material can be suitably used. Specifically, iron-based metal materials including special steels such as stainless steel and ordinary steel, as well as non-ferrous metal materials such as aluminum alloys, can be used. Furthermore, corrosion resistance and other properties may be improved by applying chemical treatments such as chromate treatment, or surface treatments such as plating or painting.

[0022] The base 5 is designed to be fixed to the installation surface G by adhesive, with the lower surface of the base 51 serving as the adhesive surface. Figure 8 shows the base 5 from Figure 7 in place. The base 5 shown in Figure 8 is bonded to the installation surface G of the installation location, which is made of concrete, by applying adhesive 6 to the entire lower surface of the base 51 and bringing it into contact with it. Although the adhesive 6 uses an epoxy-based adhesive, it is not limited to this, and other adhesives such as acrylic resin-based adhesives, urethane resin-based adhesives, thermosetting adhesives such as polyimide-based adhesives, instant adhesives such as cyanoacrylate-based adhesives, and rubber-based adhesives can be suitably used.

[0023] In the installation of the base 5 shown in Figure 8, it takes some time for the adhesive 6 to harden, but in low-temperature conditions such as winter or cold regions, the hardening time tends to be longer. In such situations, the adhesive 6 can be heated from above the base 51 placed on the installation surface G using a heating means such as a heater or burner, thereby raising the temperature and shortening the hardening time. Furthermore, since the base 51 is made of a metal material, the adhesive 6 can be heated up in a short time without deteriorating or damaging the base 51.

[0024] After the adhesive 6 in Figure 8 has hardened, the base 2 of the sign 1 is attached to the base 5. Figure 9 shows the base 2 of the sign body 1 placed on the base 5 shown in Figure 8. The base 2 has a substantially cylindrical rib 28 formed in the center of the bottom surface of the support recess 21, and a circular through hole 29 extending to the bottom surface of the base 2 is formed throughout the inner surface of the cylindrical wall of this rib 28. The base 2 shown in Figure 9 is placed on the upper surface of the base 51 by inserting the threaded portion 53 of the pedestal 5 into the inside of the through hole 29, and its orientation can be easily adjusted by rotating it around the threaded portion 53.

[0025] The base 2 shown in Figure 9 is attached to the base 5 by screwing a threaded member 58 having an internal thread into the threaded portion 53. Figure 10 shows the base 2 attached to the pedestal 5 in Figure 9. The base 2 shown in Figure 10 has a cylindrical packing P attached to the inside of the cylindrical wall of the rib 28, and a threaded member 58 is screwed into the threaded portion 53. The threaded member 58 is equipped with a washer 58a, and the washer 58a is in contact with the upper end of the rib 28 and screwed in. The base 2 is firmly attached to the pedestal 5 by screwing in the screw member 58. Furthermore, the packing P is installed to fill the gap between the cylindrical wall of the rib 28 and the threaded portion 53, preventing water and other substances from entering the inside of the support recess 21 from below the base 2 through the through hole 29.

[0026] By attaching the column 10 shown in Figure 3 to the base 2 shown in Figure 10, the sign 1 shown in Figure 1 is installed on the installation surface G. Specifically, the base portion 15 of the column 10 shown in Figure 3 is inserted into the support recess 21 of the base 2, and the projection 15b is engaged with an engaging portion (not shown) formed on the support surface 23 to attach the column 10. In the state where the column 10 is attached to the base 2, the upper part of the screw member 58 is covered by the column 10, so it is not possible to remove the base 2 from the base 5 by unscrewing the screw member 58 with a tool. In other words, the marker body 1 installed on the installation surface 1 can be removed from the installation surface G by first removing the column 10 from the base 2, and then unscrewing the screw member 58 from the threaded portion 53 and removing it.

[0027] The marker body 1 has a base 51 that is fixed to the installation surface G using a metal material, which allows the thermal expansion coefficient of the base 51 to be close to that of concrete. By providing it in this way, the difference in the magnitude of thermal expansion and contraction between the base 51 and the installation surface G made of concrete, which occurs due to temperature changes between day and night and seasonally, can be reduced, thereby suppressing the detachment of the base 5 fixed to the installation surface G with adhesive 6. In particular, by forming the base 51 from an iron-based metal material such as stainless steel, the difference in thermal expansion coefficient with concrete can be minimized, allowing the base 5 to be more firmly fixed to the concrete mounting surface G.

[0028] Furthermore, since the base 5 is attached to the base 2 via a threaded portion 53 formed in the center of the base 51, the thermal expansion and contraction of the base 51 caused by temperature changes due to day and night or seasons is less likely to be hindered by the base 2. By providing it in this way, the difference in the magnitude of thermal expansion and contraction between the base 51 and the installation surface G made of concrete can be made smaller, and the detachment of the base 5 from the installation surface G can be effectively suppressed.

[0029] Furthermore, the base 5 and marker 1 according to the present invention are not limited to the above embodiments, and various modifications are possible without departing from the spirit of the present invention. For example, as shown in Figures 8 to 10, the sign 1 is installed by first attaching a base 5 to the mounting surface G, then attaching a base 2 to the base 5, and finally attaching a column 10 to the base 2. However, this is not the only way to install the sign 1. In the sign body 1 shown in Figure 1, which has a base 5, a base 2, and a column 10 attached, adhesive 6 may be applied to the lower surface of the base 51 and fixed to the installation surface G.

[0030] Furthermore, the base 5 is provided with a threaded portion 53 having male threads formed on the base 51, and a threaded member 58 having female threads screwed into this threaded portion 53, but it is not limited to this. For example, the threaded portion 53 formed above the lower surface of the base 51 may be provided with female threads, and the threaded member screwed into this threaded portion 53 may be provided with male threads. Specifically, the threaded portion may be formed by welding a nut member such as a hexagonal nut to the upper surface of the metal base 51, and the threaded member may be formed with a bolt member such as a hexagonal bolt. When the threaded portion and the threaded member are provided in this manner, the base 2 can be attached to the base 5 by inserting the male threaded portion of the threaded member through the through hole 29 from above the base 2 and screwing it into the threaded portion of the base 5 which is adhesively fixed to the mounting surface G.

[0031] Furthermore, although the base 5 is adhesively fixed to the installation surface G made of concrete, it is not limited to this, and can also be suitably adhesively fixed to road surfaces made of asphalt, etc.

[0032] Furthermore, although the base 5 is formed with a smaller outer shape for the base portion 51 than for the lower surface of the base 2, it is not limited to this. The outer shape of the base portion 51 may be formed to be the same shape as the lower surface of the base 2, or the outer shape of the base portion 51 may be formed to be larger than the lower surface of the base 2 so that the edge of the base portion 51 is located outside the base 2. As shown in Figure 2, the base 5 is formed such that the outer shape of the base 51 is smaller than the outer shape of the lower surface of the base 2. This prevents the wheels from directly contacting the base 51 of the base 5 even when a vehicle comes into contact with the sign 1, and makes it difficult for the base 51 to detach from the mounting surface G. [Explanation of Symbols]

[0033] 1. Marking element 10 columns 11 Pillar section 12 caps 14 Reflective sheet 15 base 2 bases 21 Support recess 23 Support surface 28 Ribs 29 Through hole 5 bases 51 Base 52 Storage compartment 53 Threaded part 58 Screw member 6. Adhesive G Installation surface P packing

Claims

1. A base that is placed between the sign and the mounting surface and is fixed to the mounting surface by adhesive, It comprises a base whose lower surface serves as an adhesive surface, and a threaded portion formed above the lower surface, It is provided so as to be detachably attached to the indicator body via the screw portion, The base is formed of a metal material, A base characterized in that one screw portion is formed on the base, and a screw member is formed separately from the indicator body, and the screw member is screwed onto the one screw portion so that the base, which is made of a metal material, can be detachably attached to the indicator body which is formed separately.

2. The base according to claim 1, characterized in that the base portion is formed to be smaller than the lower surface of the marker.

3. The marker according to any one of claims 1 to 2, characterized in that the base is attached via the screw portion.

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