JP2010168897A - Road sign pole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a road sign pole obtaining stable fixing strength while reducing manufacturing and maintenance costs by forming a three-part assembly type, and reducing damage to improve entire durability. <P>SOLUTION: A hollow pole body 1 bendingly deformable by the contact or collision of other objects, a base 2 having a projecting portion 2A fittable into the lower end of the pole body 1 and a grounding annular portion 2B onto the road surface, and a ring 3 having an inner hole 3a externally fittable to the pole body 1 and an annular portion 3A facing the grounding annular portion 2B of the base, are manufactured as mutually independent components. The grounding annular portion 2B of the base 2 and the annular portion 3A of the ring 3 externally fitted to the pole body 1, are fastened and fixed to each other through bolts 4 from the lower side of the base 2. The whole can be assembled in a state of holding and fixing the lower end annular portion 1c of the pole body 1 between both annular portions 2B, 3A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a road sign column used by being installed on a road surface such as a center line of a roadway, a junction branching point of a lane, a walking road separation point or the like. Specifically, a hollow pole body made of a material having elasticity and restoring force that can be bent and deformed so as to protect a vehicle and an occupant by absorbing an impact when a vehicle or the like contacts or collides, and a pole A base having a protruding portion that fits inside the lower end opening of the main body and a grounding annular portion to the road surface, and a lower end annular portion of the pole body that is externally fitted to the pole body and pressed against the grounding annular portion of the base It relates to a road sign pillar consisting of three parts with a ring.

  Conventionally, as this kind of road sign pillar, there are known three pole parts, a base, and a ring, which are manufactured separately as independent parts and configured so that the three parts can be assembled.

  Such assembling-type road sign pillars are prepared by preparing different types of bases according to the installation method on the road surface, and by sharing parts such as the base and pole body, respectively. When there is no need to make separate road sign pillars with a base corresponding to the road surface, it is possible to create an efficient and economical production plan, and when the use is partially damaged due to a vehicle collision, etc. Since only the part including the damaged part needs to be replaced, there is an advantage that the maintenance cost can be reduced. At present, a three-part assembly type road sign post is mainstream.

  By the way, as a means of assembling three parts in a three-part assembling-type road sign post, conventionally, (1) The base protrusion is press-fitted inside the pole body and the ring is press-fitted into the pole body. And a structure in which the pole body, the base and the ring are bonded and fixed by interposing an adhesive between the inner and outer fitting parts, and (2) the pole body and the ring are integrally formed by injection, A structure in which the base is fixed with a screw or an adhesive. (3) The pole body is made of a material having elastic restoring force such as urethane in a hollow form, while the base and the ring are made of a hard material such as polypropylene. The grounding annular part of the base made of hard material, the annular part of the ring, and the bottom annular part of the pole body are overlapped, and these three overlapping parts A plurality of bolts passed through the tightening of the three parts fixed structure, either had been adopted in the annular portion of the.

  However, among the above assembling means, in the case of the assembling means in which the parts of (1) are press-fitted together and fixed with an adhesive, the predetermined fixing is performed due to work variations such as difficult to apply the adhesive uniformly. Not only does the strength not be obtained, but since an adhesive is used, a base treatment such as puffing, sandblasting, primer, and degreasing is required, which tends to increase costs. In the case of (2), not only a large molding machine for integrally molding the pole body and the ring is required, but since there are finally two parts, either the pole body or the ring Even when only one is damaged, it is necessary to replace the entire integrally molded product, which is not preferable in terms of maintenance cost. In particular, simply fixing the integrally molded product (pole body + ring) and the base with screws or an adhesive does not provide sufficient strength for installation and fixing to the road surface. When pulled, the ring part is easily detached from the base and the pole body falls down, and the function as a road sign is easily lost. Further, in the case of (3), since it is necessary to form a plurality of bolt insertion holes in the lower end annular portion of the pole body, when a collision force or tensile force is repeatedly applied to the pole body, the lower end annular portion from the hole. There is a problem with the durability of the pole body such as tearing and breaking.

  The present invention has been made in view of the above circumstances, and while securing the effect of reducing the production cost and maintenance cost by being a three-part assembly type, stable fixing strength can be obtained, and the overall damage can be reduced. The object is to provide a road sign post that can improve durability.

  In order to achieve the above object, a road sign pillar according to the present invention includes a hollow pole body that can be bent and deformed by contact or collision with another object, and a lower end portion of the pole body. A road sign post comprising a base having a projecting part that can be fitted internally and a grounded annular part to the road surface, and a ring having an inner hole that can be fitted on the pole body and an annular part facing the grounded annular part of the base. The pole body, the base and the ring are manufactured as independent parts, and the grounded annular part of the base in which the projecting part is fitted into the lower end of the pole body and the annular part of the ring which is externally fitted to the pole body Are fastened from below the base via a screw member, so that the lower end annular part of the pole body is sandwiched and fixed between the grounding annular part of the base and the annular part of the ring. The is characterized in that it is assembled allows configured.

  According to the present invention having the above configuration, the pole body, the base, and the ring are configured as a three-part assembly type that is independent from each other, so that a plurality of bases corresponding to each can be provided according to the installation method on the road surface. There is no need to make different types of road sign pillars, and it is possible to create an efficient and economical production plan by sharing parts consisting of the pole body, base and ring, and in the usage mode of the vehicle If a part is damaged due to a collision or trampling, it is only necessary to replace the part including the damaged part, and the maintenance cost can be reduced.

  Also, no adhesive is used to assemble and fix the three parts, and the lower end annular part of the pole body is sandwiched and fixed between the grounded annular part of the base and the annular part of the ring. In addition, ground treatment such as sand blasting is not required, the assembly cost can be reduced, and a predetermined fixing strength can be obtained stably by managing the tightening torque of the screw member. In addition, since the lower end annular part of the pole body is sandwiched and fixed, there is no need to form a bolt hole or the like, so even if a collision force or a tensile force is repeatedly applied in the usage mode, it is torn from the hole. There is almost no damage, and the overall durability can be improved.

  In the road sign pillar having the above-described configuration, as described in claim 2, as a base, a through-hole and a road surface of a fastening screw member for fixing the base to the road surface by screwing into an anchor member embedded in the road surface A single base is commonly used for the road surface screwing type base and the road surface bonding type base by forming a recessed space for pouring adhesive to fix the base to the base. It is possible to reduce the number of types of bases corresponding to a plurality of types of road surface installation methods, and further improve production efficiency.

  Further, in the road sign pillar having the above-described configuration, as described in claim 3, the pole body has an air hole, and a drain hole that can discharge water that has entered the base from the air hole to the road surface. By forming the pole body, it is possible to smoothly discharge water that has entered the hollow pole body from the air hole while making the pole body's bending deformation and elastic recovery characteristics better by the breathing action of the air hole. It is possible to suppress the generation of a strange odor accompanying the retention of water in the body and the reduction of the shock absorbing function.

  In the road sign pillar according to the present invention, the pole body is made of a material having elasticity and restoring force that can be bent and deformed by contact or collision with another object, such as urethane resin, vinyl chloride resin, EVA (ethylene vinyl acetate copolymer). ) Preferably, the resin is molded by blow molding or injection molding, the base is preferably molded from a hard material such as polypropylene or ABS resin, and the ring is preferably molded from a hard material such as polypropylene resin. By selecting a suitable component material, the role of each part can be reliably achieved.

  In short, according to the first aspect of the present invention, since the pole body, the base and the ring are manufactured as a three-part assembly type in which they are manufactured as independent parts, each corresponds to the installation method on the road surface. There is no need to create multiple types of road sign pillars with different bases, and it is possible to create an efficient and economical production plan by sharing parts, and in the usage mode, it is possible to make one by a vehicle collision or trampling. When the part is damaged, it can be restored by replacing only the part including the damaged part, and the maintenance cost can be reduced.

  Moreover, no adhesive is used to assemble and fix the three parts, and the lower end annular part of the pole body is sandwiched and fixed by fastening the grounded annular part of the base and the annular part of the ring. Assembling costs can be reduced by omitting the base processing, and a stable assembly fixing strength can be obtained by controlling the torque of the screw member. In addition, since it is not necessary to form a bolt hole etc. in the lower end annular part of the pole body, even if a collision force or a tensile force is repeatedly applied in the usage mode, it is very unlikely to be torn and damaged from the hole, There is an effect that the durability of the entire road sign post can be improved.

  Further, by adopting the configuration according to claim 2, it becomes possible to use a single base in common for a road surface screwing type base and a road surface bonding type base, and a plurality of types of road surface installation methods. It is possible to further improve the production efficiency by reducing the types of bases to meet the above requirements.

  In addition, by adopting the configuration of claim 3, the pole body can be more smoothly bent and elastically restored, and water that has entered the hollow pole body can be smoothly discharged to smoothly remove the pole. It is possible to suppress the generation of a strange odor accompanying the retention of water in the body and the reduction of the shock absorbing function.

1 is an exploded longitudinal sectional view showing a first embodiment of a road sign post according to the present invention. It is a longitudinal cross-sectional view of the assembly completion state of the road sign pillar of the said 1st Example. FIG. 3 is a bottom view of FIG. 2. It is a longitudinal cross-sectional view of the principal part which shows the road surface installation state by the bolt fixation of the road sign pillar of the said 1st Example. It is a bottom view which shows the road surface installation state by the adhesion fixation of the road sign pillar of the said 1st Example. It is a longitudinal cross-sectional view of the principal part along the XX line of FIG. It is a longitudinal cross-sectional view of the principal part along the YY line of FIG. It is a decomposition | disassembly longitudinal cross-sectional view of the components used for the road surface installation by the screwing fixation of the road sign pillar of the said 1st Example. It is a longitudinal cross-sectional view of the principal part which shows the road surface installation state by the screwing fixation of the road sign pillar of the said 1st Example. It is a longitudinal cross-sectional view of the assembly completion state of 2nd Example of the road sign pillar which concerns on this invention. It is a top view of the base in the road sign pillar of the said 2nd Example. It is a longitudinal cross-sectional view along the ZZ line of FIG. It is a decomposition | disassembly longitudinal cross-sectional view which shows the reference example of a road sign pillar. It is a longitudinal cross-sectional view of the assembly completion state of the road sign pillar of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded longitudinal sectional view showing a first embodiment of a road sign post according to the present invention. In the road sign post of this first embodiment, a pole body 1, a base 2 and a ring 3 are independent from each other. It is manufactured as a part, and these three parts 1, 2, and 3 are configured to be assembled.

  The pole body 1 has a top end closed by a lid 1a, a reinforcing rib 1b is formed on the peripheral wall of the lower half, and a lower end projecting radially outward. It is integrally formed into a hollow shape by injection molding of urethane resin or the like so that an annular portion 1c with a folded piece 1d whose end is folded upward is formed. In this case, the upper half portion is bent and deformed to absorb the impact, and can be elastically restored to the standing posture when the contact or the collision force is released. In addition, air holes 1e are formed in the peripheral wall portion at the upper and lower intermediate positions of the pole body 1 to enhance the bending deformation characteristics and the elastic restoring characteristics.

  The base 2 has a projecting part 2A that can be fitted into the lower end opening of the pole body 1 and a flat grounding annular part 2B that stably grounds on the road surface. The base 2 is made of a hard material such as polypropylene or ABS resin into an annular shape. A fastening screw member for fixing the base 2 to the road surface by being screwed into a spacer fitting recess 2a to be described later and an anchor member (described later) embedded in the road surface at the center of the base 2 In other words, the fitting recess 2b of the hexagonal head 5a of the bolt 5 with the hexagonal head 5a and the through hole 2c through which the screw portion 5b of the bolt 5 is inserted are concentric, and the base is formed on the lower surface. 2 is formed as an adhesive pouring recess 2d for adhering and fixing 2 to the road surface. Further, the ring 3 and the base 2 are provided at a plurality of locations in the circumferential direction in the grounding annular portion 2B. Through holes 2e of the short bolts 4 with fixing are formed.

  The ring 3 has an inner hole 3a that can be fitted to the pole body 1 and a downward opening 3b having a larger diameter than the grounding annular portion 2B of the base 2 in a concentric state. A substantially frustoconical annular portion 3A corresponding to the grounded annular portion 2B is formed from a hard material such as polypropylene resin, and the through hole of the base 2 is provided at the middle position of the substantially truncated conical annular portion 3A. A plurality of nuts 6 are embedded and fixed so as to face 2e, and an annular circumferential groove portion 3c into which a folded piece 1d of the annular portion 1c of the pole body 1 is fitted at a position slightly inside the diameter of the embedded nut 6 is provided. Is formed.

  The road sign pillar with the three parts 1, 2, and 3 configured as described above is installed and fixed at predetermined intervals on the road surface such as the center line of the roadway, the junction branching point of the lane, and the roadway separation point. By doing so, the driver of the vehicle or the like can visually recognize the presence of a center line, a merge branch, etc., and can function as a road sign. When the vehicle or the like accidentally contacts or collides with the pole body 1 in the installation and use mode, the pole body 1 bends and deforms to absorb the impact, thereby protecting the vehicle and the driver. When the pole body 1 is separated from the pole body 1, the pole body 1 is elastically restored to the standing posture and the predetermined marker function is restored.

  The method of installing the road sign pillar used in this way is roughly divided into a method in which the base 2 is fixedly installed on the road surface using the above-described bolt 5 with the hexagon head 5a (hereinafter referred to as a bolt fixing installation method), a base 2 is fixedly installed on the road surface using an adhesive (hereinafter referred to as “adhesive fixed installation method”), and fixedly installed by screwing from above into an anchor type screw member that is embedded and fixed in advance under the road surface and protrudes on the road surface. There are methods (hereinafter referred to as screw-in fixed installation methods), and these fixed installation methods will be described in detail below.

Bolt fixing installation method:
As shown in FIGS. 2 and 3, the screw portion 5 b is formed by fitting the head 5 a of the bolt 5 with the hexagon head 5 a into the fitting recess 2 b of the base 2 and projecting downward from the base 2 through the through hole 2 c. First, the bolt 5 is fixed to the base 2 by screwing and tightening the nut 7. Next, the protruding portion 2A of the base 2 is fitted into the lower end opening of the pole body 1, while the ring 3 fitted to the pole body 1 from the top side of the pole body 1 through the inner hole 3a is attached to the pole body 1. The downward opening 3b is fitted into the grounded annular portion 2B of the base 2, and the folded piece 1d of the annular portion 1c of the pole body 1 is fitted into the annular circumferential groove 3c.

  In this state, the short bolt 4 inserted from below into a plurality of through holes 2e formed in the grounding annular portion 2B of the base 2 is screwed into the embedded nut 6 of the ring 3 and tightened, whereby the lower end of the pole body 1 is annular. The assembly of the road sign post A is completed by fixing the three parts 1, 2 and 3 to each other in a state where the part 1c is sandwiched and fixed between the grounding annular part 2B of the base 2 and the annular part 3A of the ring 3.

  After the assembly is completed, as shown in FIG. 4, the bolt is attached to the anchor member 9 which is inserted into a hole excavated and formed in the road surface R and embedded in the road floor by an adhesive 8 such as an epoxy resin adhesive. By screwing 5, the road sign pillar A can be fixedly installed on the road surface R in a vertical standing posture to exhibit a predetermined sign function.

Adhesive fixed installation method:
Without fitting anything into the fitting recess 2b and the through hole 2c of the base 2, the three parts 1, 2, 3 are fixed to each other in the same manner as described above to complete the assembly of the road sign post A. After the assembly is completed, the adhesive 10 is applied to the entire lower surface of the base 2 as shown in FIG. At this time, a part of the applied adhesive 10 flows into the downward opening 3b of the ring 3 and the recessed space 2d of the base 2 as shown in FIG. 6 and FIG. By pressing the entire A against the road surface R from above, the road sign post A can be strongly adhered and fixed to the road surface R in a vertical standing posture to exhibit a predetermined sign function. In addition, in the case of adhesive fixing installation, it is preferable to use ABS resin or the like having a high adhesive force with the adhesive 10 as the base 2 material so that the adhesion between the road surface R and the adhesive 10 becomes stronger. preferable.

Screwed installation method:
As shown in FIG. 8, a stepped nut 11 is fitted into the fitting recess 2b and the through hole 2c of the base 2, and the stepped nut 11 is fixed to the base 2 via a plate 12 and a screw screw 13, and three As shown in FIG. 9, the parts 1, 2 and 3 are fixed to each other in the same manner as the above-described fixed installation methods to complete the assembly of the road sign pillar A. Then, after the assembly is completed, as shown in FIG. 9, a stepped nut 11 fixed to the base 2 is screwed into an anchor type screw member 14 which is embedded and fixed in advance under the road surface R and protrudes upward from the road surface R. The road sign post A can be fixedly installed on the road surface R in a vertical standing posture so that a predetermined sign function can be exhibited.

  FIG. 10 is a longitudinal sectional view showing a second embodiment of the road sign pillar according to the present invention. In this second embodiment, as shown in FIGS. 11 and 12, the outer periphery of the central protruding portion 2A of the base 2 is shown. A plurality of drain grooves 15 are formed in the circumferential direction from the upper end of the surface to the outer edge portion of the upper surface of the grounding annular portion 2B. Since other configurations are the same as those of the first embodiment, the same reference numerals are given to the corresponding portions, and detailed descriptions thereof are omitted. In addition, in FIG. 10 of the second embodiment, as a method of fixing and mounting the road sign post A that has been assembled to the road surface, a bolt fixing and installation method using bolts 5 is shown. Alternatively, a screw-in fixed installation method may be used.

  In the road sign post A (see FIG. 10) completed by assembling the base 2, the ring 3 and the pole body 1 having the water draining groove 15 in the same manner as described above, the pole body 1 was formed. The breathing action of the air hole 1e makes the pole body 1 bend and deform smoothly and smoothly, and rainwater and the like that has entered the pole body 1 from the air hole 1e smoothly passes through the drainage groove 15 to the road surface R. It is possible to discharge the odor, and it is possible to suppress the generation of a strange odor and the deterioration of the shock absorbing function due to the retention of rainwater or the like in the pole body 1.

  FIG. 13 is an exploded (before assembly) longitudinal sectional view showing a reference example of a road sign pillar, and FIG. 14 is a longitudinal sectional view in a state where the assembly is completed. In this reference example, a stepped nut 11 is fitted into the fitting concave portion 2b and the through hole 2c of the base 2, and a convex portion 16a and a base that can be fitted into the spacer fitting concave portion 2a on the stepped nut 11 are provided. A spacer 16 formed by integrally molding an annular portion 16b having the same outer diameter as the two protruding portions 2A is prepared separately, and this spacer 16 is added and fixed to the base 2 via screws 17, while A cylindrical portion 3B corresponding to the height of the spacer 16 is integrally connected to the upper portion of the substantially truncated cone-shaped annular portion 3A of the ring 3, and a visually reflecting reflector attaching concave portion 3d is formed on the outer peripheral surface of the cylindrical portion 3B. Has been. Since other configurations are the same as those of the first embodiment, the same reference numerals are given to the corresponding portions, and detailed descriptions thereof are omitted. Further, in FIGS. 13 and 14 of this reference example, as a method of fixing and mounting the road sign post A that has been assembled on the road surface, a screw-and-fixing installation method using a stepped nut 11 is shown. Alternatively, it may be a screwed and fixed installation method using bolts.

  The road sign pillar A of the reference example is a road sign pillar of a visual reflecting reflector specification for visually recognizing that a road sign pillar is present to an automobile driver or the like. No need to fabricate, and by simply adding and fixing the spacer 16 to the base 2 that can be used in common with the first and second embodiments, it is possible to easily and inexpensively assemble a marker column with a reflector plate having an excellent visual guidance function. Can be installed.

DESCRIPTION OF SYMBOLS 1 Pole main body 1c Lower end annular part 1e Air hole 2 Base 2A Protrusion part 2B Grounding annular part 2a Spacer fitting recessed part 2b Bolt fitting recessed part 2c, 2e Through-hole 2d Adhesive pouring recessed space 3 Ring 3A substantially truncated cone shape 3a Inner hole 3b Opening part 3c Annular circumferential groove part 4 Short bolt (screw member)
5 Hex head bolt (fastening screw)
6 Embedded nut 9 Anchor member 10 Adhesive A Road sign post

Claims (4)

A hollow pole body that can be bent and deformed by contact or collision with other objects, a base having a projecting portion that can be fitted into the lower end of the pole body, and a grounded annular portion to the road surface, and an interior that can be fitted to the pole body. A road sign post comprising a hole and a ring having an annular part facing the grounded annular part of the base,
The pole body, base and ring are manufactured as independent parts,
By fixing and fixing the grounded annular part of the base with the protruding part fitted into the lower end of the pole body and the annular part of the ring externally fitted to the pole body from below the base via a screw member. A road sign post characterized in that the lower end annular portion of the main body can be assembled as a whole while being sandwiched and fixed between a grounding annular portion of a base and an annular portion of a ring.   The base has a through hole of a fastening screw member for fixing the base to the road surface by screwing into an anchor member embedded in the road surface, and a recess for pouring adhesive for fixing the base to the road surface. The road sign pillar according to claim 1, wherein a space is formed.   The road sign according to claim 1 or 2, wherein an air hole is formed in the pole body, and a water draining groove capable of discharging water that has entered from the air hole to the road surface is formed in the base. Pillar.   4. The pole body according to claim 1, wherein the pole body is made of a material having elasticity and a restoring force that can be bent and deformed by contact or collision with another object, and the base and the ring are made of a hard material. The road sign pillar described.

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