JP2011012480A - Pedestrian crossing preventive sign pole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pedestrian crossing preventive sign pole which is manufactured of simple members and by a simple facility.SOLUTION: This pedestrian crossing preventive sign pole constituted of a synthetic resin-made columnar body and provided with a beam is manufactured by drilling a through-hole in the columnar body, inserting the beam into the through-hole thoroughly, and fitting ring-like fixing members provided around both of opening parts of the through hole into outer side faces of the beam externally and respectively. Since the ring-like fixing members are externally fitted into the beam, large-scale facility is unnecessary to fix the beam on the columnar body, and this sign pole can be manufactured by a simple tool and simple work. In addition, even if the fixed beam and fixing members come off from each other due to deterioration with age of the installed pedestrian crossing preventive sign pole, it is possible to visually confirm the coming-off of the fixing members from the beam easily so that proper countermeasure such as their replacement can be early taken.

Description

  The present invention relates to a pedestrian crossing prevention sign post installed along a road direction between a traveling lane and an opposite lane.

  Conventionally, in roads where the distance between the driving lane and the opposite lane is relatively wide, a guard rail or a retaining wall is installed between the driving lane and the opposite lane, or a tree or the like is planted. A separation zone is provided to promote safe driving of the vehicle and prevent pedestrians from crossing. In addition, on roads where the distance between the driving lane and the opposite lane cannot be widened and a median can not be provided, a pedestrian crossing prevention function is provided with columnar bodies with beams attached at appropriate intervals. The installation of marking pillars has been proposed.

  For example, in Patent Document 1, in a road sign pillar in which a main body made of a hollow imager is installed upright on a road surface, a beam insertion hole is formed near the top of the main body, and the insertion hole is made of the same material as the main body. With the hollow beam inserted, the head of the road sign pillar is molded by the urethane foam casting method with the hollow beam inserted, and the main body, beam, and head are joined together. A road sign post characterized by

Japanese Patent No. 3968202

  However, the road sign pillar disclosed in Patent Document 1 is fixed by integrally bonding the beam inserted into the beam insertion hole of the main body to the main body and the head by a casting method of urethane foam. Therefore, there is a problem that a large-scale manufacturing facility is necessary.

  Therefore, the present invention provides a pedestrian crossing prevention sign pillar that can be manufactured with simple members and equipment.

In order to achieve the above object, the present invention is configured as follows.
That is, in the pedestrian crossing prevention sign pillar according to the present invention, a columnar body made of a synthetic resin is erected between the traveling lane and the opposite lane along the road direction at an appropriate interval, and the columnar body is made of a synthetic resin. A pedestrian crossing prevention sign pillar with a beam
The columnar body is provided with a through hole, and the beam is inserted through the through hole,
Ring-shaped fixing members respectively provided around both openings of the through hole are externally fitted to the outer surface of the beam.

According to the pedestrian crossing prevention sign pillar according to the present invention, since the ring-shaped fixing member is externally fitted to the beam penetrating the columnar body, a large-scale facility is not required for fixing the beam to the columnar body, It can be manufactured with simple tools and operations.
In addition, even if there is a problem that the fixing member and the beam are not fixed due to aging degradation of the installed pedestrian crossing prevention sign post, the fixing member can be easily removed from the beam visually. Appropriate measures such as exchange can be performed at an early stage.

In addition, the beam is inserted into the through hole of the columnar body, and ring-shaped fixing members that are externally fitted to the outer surface of the columnar body are provided around both openings of the through hole. It is possible to fix it via the fixing member by loosely fitting it without directly adhering to the body.
For this reason, when a vehicle or the like comes into contact with the beam of the pedestrian crossing prevention sign pillar that has been installed, there is no momentary concentration of the force caused by the impact on the fixed part of the pillar and the beam. After the impact is mitigated at the contact portion with the edge, it is transmitted to the fixing member fitted on the beam, and the fixing of the columnar body and the beam is prevented from being broken.
In addition to the momentary impact as described above, the fixing member deforms both the columnar body and the beam against deformation due to thermal expansion and contraction of the columnar body and the beam due to temperature fluctuations such as seasonal changes. Therefore, only the deformation of the beam is followed, and the magnitude of the deformation is suppressed to be small, and the fixing member is not easily broken.

In addition, if the fixing member is made of rubber, when a vehicle or the like comes into contact with the beam of the pedestrian crossing prevention sign pillar that is installed, the transmitted impact is alleviated by the fixing member. It is more preferable that the fixation with the is broken.
In addition, it is preferable that the fixing member can follow the deformation of the beam well even with respect to deformation due to thermal expansion and contraction of the columnar body and the beam due to temperature fluctuation, so that the destruction of the fixing member is further suppressed.

  In addition, if a retaining member having a projecting portion projecting outward from the outer surface of the beam is provided on the side of each fixing member, the beam is fixed due to aging deterioration of the installed pedestrian crossing prevention sign column. Even if the problem that the fixing of the member and the beam is removed occurs, the problem that the beam comes off from the columnar body does not occur, which is preferable.

  According to the pedestrian crossing prevention sign pillar according to the present invention, it can be easily manufactured without requiring a large-scale manufacturing facility for manufacturing.

It is a figure which shows one Embodiment of the pedestrian crossing prevention sign pillar which concerns on this invention. It is AA sectional drawing of FIG. FIG. 3 is an enlarged view of the vicinity of a base portion in FIG. 2. FIG. 3 is an enlarged view of the vicinity of a fixing member and a retaining member in FIG. 2.

Embodiments of the present invention will be specifically described with reference to the drawings.
First, the overall configuration of the pedestrian crossing prevention sign pillar according to the present invention will be described with reference to FIG.
Reference numeral 1 denotes a columnar body of a pedestrian crossing prevention sign column.
The columnar body 1 is configured by protruding a column portion 11 on the upper end surface of the base portion 2.
The column part 11 is formed in a cylindrical hollow columnar body, and the cap part 4 is fixed by fusion so as to close the upper end thereof. A reflective sheet 13 having retroreflectivity that reflects outgoing light in parallel to incident light is attached to the outer peripheral side surface of the column part 11.
The columnar body 1 is formed of a thermoplastic polyurethane resin so that the columnar body 1 has flexibility to be restored to its original state after being stepped on by a vehicle or the like. Can be suitably used.

Reference numeral 5 denotes a beam, which is formed in a cylindrical hollow columnar body. The beam 5 is inserted into a circular through hole 14 formed on the side surface of the column portion 11, and ring-shaped fixing members 7 fitted on the outer surface of the beam portion 5 are passed around the openings on both sides of the through hole 14. The both ends of the beam 5 are protruded laterally and fixed to the column portion 11.
At both ends of the beam 5, a retaining member 55 having protrusions 56 that protrude outward from the outer surface of the beam 5 is provided. The retaining member 55 has an outer shape of the protruding portion 56 larger than the shape of the opening portion of the through hole 14, so that even if a problem such as the breaking of the fixing member 7 occurs, the beam 5 can pass through the through hole. 14 is prevented from coming off.
As the material of the beam 5, various materials such as synthetic resin, synthetic rubber, natural rubber, and metal can be used. However, considering the ease of molding and the resilience and durability when the vehicle contacts, Plastic polyurethane, soft polyolefin, elastomer and the like are suitable, and a thermoplastic polyurethane resin is used in this embodiment.

  The pedestrian crossing prevention sign pillar of the present embodiment has a size in which a person cannot pass through the columnar body 1 in which both ends of the beam 5 are protruded sideward as described above. In this way, a plurality of sets are juxtaposed between the traveling lane and the opposite lane to separate the lanes and prevent a pedestrian from crossing the installed road.

2 is an AA cross-sectional view of FIG. 1, FIG. 3 is an enlarged view of the vicinity of the base portion 2 of FIG. 2, and FIG. 4 is an enlarged view of the vicinity of the fixing member 7 and the retaining member 55 of FIG. is there.
A reinforcing cylinder 12 reinforces the column part 11 from the inside. The reinforcing cylinder 12 is formed in a cylindrical shape having an outer diameter slightly smaller than the inner diameter of the column part 11.
The material of the reinforcing cylinder 12 is preferably a thermoplastic polyurethane, a soft polyolefin, an elastomer or the like in consideration of ease of molding, resilience to treading of a vehicle, durability, and the like.

The base portion 2 is formed in a flat columnar shape, provided with an annular column portion insertion annular groove 22 for inserting the column portion 11 on the upper surface, and an annular reinforcement tube insertion ring for inserting the reinforcement tube 12 therein. The groove 21 is formed so as to be provided.
The column part 11 and the reinforcing cylinder 12 are inserted and fused and fixed to the column part inserting annular groove 22 and the reinforcing cylinder inserting annular groove 21, respectively.
By fusing the reinforcing cylinder 12 together with the column portion 11 to the base portion 2, when the column portion 11 is bent as the vehicle passes over the columnar body 1, stress applied to the base portion of the column portion 11 is reinforced. It can be dispersed in the cylinder 12.

The base portion 2 is formed with three circular bolt insertion holes 24 penetrating from the upper surface to the lower surface, and the bolt insertion holes 24 are formed so that male screws of anchor bolts 6 using hexagon socket head cap screws can be inserted. I am letting. Further, the bolt insertion hole 24 is formed so that the upper opening edge is widened. The head of the anchor bolt 6 is accommodated in the widened portion, and the male screw portion is protruded from the lower surface of the base portion 2. Is formed so that it can be inserted.
The pedestrian crossing prevention sign pillar of the present embodiment is formed so that the male screw of the anchor bolt 6 is screwed and fixed to an anchor nut embedded in the road surface so as to stand on the road surface.
The method of attaching the anchor bolt 6 to the base portion 2 is not limited to the method using the bolt insertion hole 24, and the head portion of the anchor bolt 6 may be embedded in the base portion 2 and fixed.
Further, the fixing method of the base portion 2 to the road surface is not limited to the anchor bolt 6, and an adhesive or the like may be applied to the lower surface of the base portion 2 and fixed.

On the side wall of the base portion 2, a side wall groove portion 23 for attaching the band-like reflecting member 3 is formed over the entire circumference.
The reflecting member 3 is provided with a reflector 31 made of glass beads at an appropriate interval on a strip-shaped base material 32. The reflector 31 is preferably made of glass beads that have high retroreflectivity that reflects light parallel to the incident light, and that is not easily soiled or deteriorated. You may stick. The material of the base material 32 may be a metal such as steel, stainless steel, or aluminum. However, in order to make it easy to embed and form the reflector 31, a highly elastic synthetic material such as rubber, urethane resin, or elastomer is used. It is preferable to use a resin, and it is more preferable to use a thermoplastic synthetic resin having a certain degree of hardness, such as polyethylene or polypropylene, so that the reflector 31 is unlikely to come off.
The band-shaped reflecting member 3 is wound around and attached to the side wall groove portion 23 of the base portion 2. The reflecting member 3 is difficult to come off by being wound around the side wall groove portion 23, and the reflector 31 can be provided without protruding from the outer surface of the base portion 2 by the amount of the side wall groove portion 23. This is preferable because it can prevent displacement. Further, the reflection member 3 may be attached to the outer periphery of the base portion 2 without providing the side wall groove portion 23. In addition, the reflecting member 3 may be attached with a reflective tape as it is, or may be attached so that a glass reflector is embedded in the outer periphery of the base portion 2 as it is.

The through hole 14 is formed on the side surface of the column portion 11 so that the beam 5 to be inserted passes through the center of the cylindrical column portion 11, and is formed in a circular shape corresponding to the outer shape of the beam 5.
Further, the through hole 14 is formed between the reflection sheets 13 attached to the side surface of the column part 11, and the through hole 14 and the beam 5 are provided so as not to deteriorate the visibility of the column part 11.
In the present embodiment, the beam 5 and the through hole 14 are formed in a cylindrical shape and a circular cross-sectional shape, respectively, but the present invention is not limited to this, and each cross-section is formed in an elliptical shape, a polygonal shape, or other shapes. You may form in.

  The fixing member 7 is formed in a cylindrical shape having an inner peripheral side surface 71, an outer peripheral side surface 72, and a donut-shaped end surface 73 formed therebetween. Further, the fixing member 7 is formed in a cylindrical shape in which the inner cross-sectional shape of the inner peripheral side surface 71 corresponds to the outer peripheral shape of the beam 5, and is formed so as to be fitted on the outer peripheral side surface of the beam 5.

The fixing member 7 externally fitted to the beam 5 inserted into the through hole 14 is bonded to the beam 5 with an adhesive at a position where the end surface 73 abuts or approaches each opening of the through hole 14 of the column part 11. It is fixed. More specifically, the fixing member 7 is fixed to the outer peripheral side surface of the beam 5 by applying an adhesive to the inner peripheral side surface 71, and the adhesive is not applied to the end surface 73 of the fixing member 7. The column portion 11 is not directly bonded and fixed, and the beam portion 5 and the column portion 11 are not directly bonded and fixed.
By fixing the column part 11, the beam part 5, and the fixing member 7 in this way, when a vehicle or the like comes into contact with the beam 5 of the pedestrian crossing prevention sign pillar installed, the applied impact is Since it concentrates on the contact part with the opening part of the through-hole 14 and is relaxed here, it is transmitted to the fixing member 7 fixed to the beam 5, so that the impact does not concentrate on the bonded and fixed part, and the fixing member 7 And the beam 5 are not easily broken.
Further, since the beam 5 is formed in a cylindrical shape and the opening of the through hole 14 is formed in a corresponding circular shape, even if an impact is applied to the beam 5 not only from the side but also from the vertical direction. The impact is dispersed at the contact portion between the beam portion 5 and the through hole 14 and is similarly mitigated.

  Further, not only the momentary impact as described above but also the deformation of the columnar body 1 and the beam 5 due to thermal expansion and contraction due to temperature fluctuation such as seasonal change, the fixing member 7 adheres to the column portion 11. Since the fixing member 7 is not fixed and bonded and fixed only to the beam 5, the fixing member 7 does not follow the deformation of both the column portion 11 and the beam 5, but only follows the deformation of the beam 5, and the deformation The size is suppressed to be small, and the fixing member 7 and the beam portion 5 are not easily broken.

In the present embodiment, synthetic rubber is used as the material of the fixing member 7. By forming the fixing member 7 of synthetic rubber, the impact transmitted to the fixing member 7 is further relaxed by the elasticity of the fixing member, and the fixing of the fixing member 7 is less likely to be broken.
In addition, the fixing member 7 is elastically deformed to follow the deformation of the beam 5 well with respect to deformation due to thermal expansion and contraction due to the above temperature fluctuation, so that the fixing of the fixing member 7 is less likely to be broken. .
In the present embodiment, synthetic rubber is used as the material of the fixing member 7, but the material is not limited to this. You may form using a synthetic resin, a metal, etc.

The retaining member 55 is formed in a cylindrical shape, and the beam insertion annular groove 56 has the same center as the donut shape on one of two end faces of the donut shape formed between the inner peripheral side surface and the outer peripheral side surface. It is formed as follows.
The diameter of the beam insertion annular groove 56 and the width of the groove are formed to correspond to the cylindrical diameter and thickness of the beam 5, and the end of the beam 5 can be inserted into the beam insertion annular groove 56. Is formed. Further, the retaining member 55 is formed such that the shape of the outer peripheral side surface thereof is larger than the diameter of the outer peripheral side surface of the beam 5 and the diameter of the opening of the through hole 14.

The retaining member 55 is bonded and fixed to the beam 5 by inserting the end of the beam 5 into the beam insertion annular groove 56.
Since the outer peripheral side surface of the retaining member 55 is formed larger than the diameter of the outer peripheral side surface of the beam 5 and the diameter of the opening of the through hole 14 as described above, there is a problem that the fixing member 7 is broken. Even if it occurs, the retaining member 55 is not caught by the edge of the opening of the through hole 14 and the beam 5 does not come out of the through hole 14 and come off.

In this embodiment, the retaining member 55 is fixed to the end of the beam 5, but the present invention is not limited to this and may be provided anywhere on the side of the fixing member 7. As an example, the same effect can be obtained even if the retaining member 55 is made of the same member as the fixing member 7 and is adhered and fixed to the fixing member 7 at intervals.
Various materials such as synthetic resin, synthetic rubber, natural rubber, and metal can be used as the material of the retaining member 55, but considering the ease of molding and the resilience and durability when a vehicle or the like comes into contact Thermoplastic polyurethane, soft polyolefin, elastomer, and the like are suitable. In this embodiment, the same thermoplastic polyurethane resin as that of the beam 5 is used.

  A reflection sheet 53 having retroreflectivity similar to that of the reflection sheet 13 is attached to the outer peripheral side surface of the beam 5, and the visibility of the beam 5 is enhanced. In the present embodiment, the reflection sheet 5 is wound around and attached to the entire circumference of the outer peripheral side surface of the cylindrical beam 5, and the visibility from not only the side but also obliquely upward is improved. It is configured as follows.

DESCRIPTION OF SYMBOLS 1 Columnar body 11 Column part 12 Reinforcement cylinder 13 Reflective sheet 14 Through hole 2 Base part 21 Reinforcement cylinder insertion annular groove 22 Column part insertion annular groove 23 Side wall groove part 24 Bolt insertion hole 3 Reflective member 31 Reflector 32 Base material 4 Cap part 5 Beam 53 Reflective sheet 55 Retaining member 56 Beam insertion annular groove 6 Anchor bolt 7 Fixing member 71 Inner peripheral side surface 72 Outer peripheral side surface 73 End surface

Claims (3)

Columnar bodies made of synthetic resin are erected at appropriate intervals along the road direction between the driving lane and the opposite lane,
The columnar body is provided with a through hole, and a beam is inserted through the through hole,
A pedestrian crossing prevention sign column, wherein ring-shaped fixing members respectively provided at both openings of the through hole are fitted on the outer surface of the beam.   The pedestrian crossing prevention sign pillar according to claim 1, wherein the fixing member is made of rubber. 3. The beam according to any one of claims 1 and 2, wherein a retaining member having a projecting portion projecting outside the outer surface of the beam is provided on a side of each fixing member. The described pedestrian crossing prevention sign pillar.

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