JP2566685Y2 - Road sign and cylinder for the sign - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road sign which is temporarily fixed on a road surface to separate lanes of a road for a motor vehicle and regulates a traveling area, and a column for the sign. Things.

[0002]

2. Description of the Related Art A road sign comprising a hollow cylindrical body made of rubber or synthetic resin and a base at a lower end thereof is known (see Japanese Utility Model Laid-Open No. 1-120512). In this road sign, a reinforcing cloth is integrally provided along the inner wall surface of the columnar body, and a flange-shaped locking portion is provided at a lower end. The base includes a base body capable of closing the lower end of the cylindrical body and a pressing ring that can be fitted to the outside of the base body, and a flange-shaped locking of the cylindrical body inserted through the pressing ring from below. The base portion is locked to the locking portion on the inner wall of the holding ring, and the base body is fitted to the holding ring so as to close the lower end of the cylindrical body, and a flange at the lower end of the cylindrical body is provided between the holding ring and the base body. The locking portion is pinched and held.

[0003]

However, in the conventional road sign described above, the reinforcing cloth is provided on the inner wall surface of the cylindrical body made of rubber or synthetic resin to reinforce the cylindrical body, so that the occurrence of cracks is reduced. Even if it can be done, there is a problem that the restoring force when pressed by the tires of a running automobile is not sufficient and the durability when repeatedly stepped on with the tires described above is poor. In addition, since the cylindrical body, the base body, and the holding ring were made of the same material, when the above-described base body was fixed to the road surface with bolts and used semi-permanently, the holding ring and the cylindrical body for the base body were used. It was difficult to put on and take off.

This invention is excellent in restoring force when pressed by a tire and durability when stepped on, and when a base body is used fixed on a road surface, a pressing ring or a ring for the base body is used. It is an object of the present invention to provide a road sign which can be easily attached and detached, and a column for the sign.

[0005]

The road sign according to the present invention comprises a cylindrical column and a base for holding the lower end of the column in a detachable manner so that the column stands upright on the road surface. It is. The cylindrical body has a lower end opening cylindrical portion integrally formed by injection molding with a flexible urethane elastomer having a high flexibility, preferably a thermoplastic urethane elastomer having a JIS A rubber hardness (JIS K6301) of 80 to 95 degrees. The cylindrical portion has a circular flange at the lower end, and a plurality of, preferably 4 to 8 ridges are provided on the inner wall surface at the lower portion of the cylindrical portion , and the width and thickness thereof are from bottom to top.
As shown in the figure, the protrusion is formed in the shape of a vertical rib which gradually becomes smaller , and the protrusion is formed upward along the outer peripheral edge of the flange portion.

On the other hand, the base is a circular base body made of a soft urethane elastomer covering the lower surface of the flange portion of the cylindrical body, and a hard synthetic resin removably fitted to the outside of the base body. And a holding ring. A convex portion is formed at the center of the base body so as to be fitted inside the cylindrical portion. A bolt hole for inserting an anchor bolt is formed in the convex portion, and a flange portion of the cylindrical body is formed inside the holding ring. And a locking edge is formed which meshes with the ridge on the outer peripheral edge thereof. The base body is injection-molded with a flexible urethane elastomer having a JIS-A rubber hardness of 80 to 95 degrees, which has the same flexibility as the cylindrical body, and the holding ring is harder than the soft urethane elastomer, preferably a rock well. Hardness (ASTM D-785) is 1
Hard synthetic resin of 00 to 120 degrees, for example, thermosetting urethane elastomer or polypropylene, polyethylene,
It is made of a thermoplastic synthetic resin such as ABS or nylon.

[0007]

[Function] An anchor bolt is planted on a road surface, the anchor bolt is passed through a bolt hole of the base body, and the base body is fixed to the road surface. Pressing down the inner circumference of the holding ring, the holding ring fits into the base body,
The column is fixed to the base body. Then, when the holding ring is pryed up, the holding ring and the columnar body come off in order.

In this case, since the pressing ring is formed of a hard synthetic resin, and the cylindrical body and the base body are each formed of a soft urethane elastomer, the outer peripheral portion of the base body and the ridge of the flange of the cylindrical body are respectively formed. It deforms, and the fitting / removal between the outer periphery of the base body and the inner surface of the press ring and the fitting / removal between the protrusion of the cylindrical flange portion and the locking edge of the press ring are easily performed. In addition, when the above-mentioned road sign becomes unnecessary, after the base body is removed from the anchor bolt, the tip portion of the anchor bolt protruding from the road surface is removed by cutting or pulling.

Thus, when a cylinder is erected by the base body and the holding ring fixed to the road surface as described above, when the automobile comes into contact with the cylinder, the cylinder is pushed and bent, and the cylinder is bent. It is compressed when stepped on by the tire, but the cylinder is made of a soft urethane elastomer with excellent elastic restoring force, and a plurality of ridges are provided in the lower part of the inner wall surface in the vertical direction. Is restored to an upright state or a columnar shape, and is excellent in durability. Even if the above-mentioned bending or compression is repeated, destruction due to fatigue hardly occurs.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 10 denotes a hollow cylindrical column, which is injection-molded with a soft thermoplastic urethane elastomer. The cylindrical body 10 is formed in a cylindrical shape in which an upper half portion is parallel, and in a conical cylindrical shape in which a lower half portion has a slight taper in a flared shape. An air hole 12 is opened in the top 11, and circumferential grooves 13 for sticking a sign tape (not shown) are provided in a plurality of vertical steps on the outer surface of the upper half. The rib-shaped protrusions 14 are provided at equal intervals (see FIG. 2). In addition, this ridge 14
Indicates that the width and thickness are maximum at the lower end and
So that it gradually becomes smaller and disappears as you go
Is done. Then, a circular flange 15 is formed in the opening at the lower end.
Are provided integrally, and a ridge 16 is formed along the upper surface edge of the flange 15.

The base body 20 located below the flange 15 is made of the same soft urethane elastomer as the cylindrical body 10 and has substantially the same outer diameter as the flange 15 of the cylindrical body 10. A ridge 21 is formed. On the upper surface, a convex portion 22 fitted to the lower end portion of the cylindrical body 10 is integrally formed, and a bolt hole 24 is formed in a recess 23 provided at the center of the upper surface.
4 and a washer 27 at the tip of the anchor bolt 26
, The nut 28 is tightened, whereby the base body 20 is fixed to the road surface R.

The holding ring 30 fitted to the outer surface of the base body 20 has an inner peripheral lower portion provided with the base body 20.
Has a concave groove 31 that fits with the ridge 21 on the outer periphery of the cylindrical body 10.
And a locking edge 32 that engages with the ridge 16 on the peripheral edge of the flange 15. An inclined edge 33 is formed on the outer periphery of the lower surface, and the lower surface edge of the press ring 30 and the road surface R are formed.
And a gap is created between them.

In the above embodiment, since the inclined edge 33 is formed on the outer periphery of the lower surface of the press ring 30, the tip of a hoe, a scoop, a shovel or the like is inserted into the gap between the inclined edge 33 and the road surface R. By pressing up, the holding ring 30
Can be easily removed.

In the above embodiment, the anchor bolt 2
6 is embedded under the road surface R. Alternatively, a nut 28 may be embedded and a bolt may be inserted from above the base body 20 for screw connection. Further, as shown in FIG. 3, a vertical hole 40 may be dug in the road surface R, and a hole-in anchor bolt 41 may be inserted. In this example, the anchor bolt 41 is inserted into the bolt hole 24 of the base body 20 from above,
Attach the nut 42 to the upper threaded part,
By driving a center nail 44 into the center hole 43 from above, the quadrant 45 on the lower end side of the anchor bolt 41 is expanded and fixed to the inner wall of the vertical hole 40.

[0015]

As described above, the road sign according to the first aspect of the present invention has a cylindrical body, a base body that covers the lower surface of the flange at the lower end of the cylinder, and a holding ring that is fitted to the outside of the base body. Since the cylindrical body and the base body are made of a soft urethane elastomer and the holding ring is made of a hard synthetic resin, it is easy to attach / detach the cylindrical body and the holding ring to / from the base body fixed to the road surface. is there. And since the said base main body has a bolt hole in the center part, the base main body can be easily fixed to a road surface using an anchor bolt, so that it can be suitably used for lane division and regulation, When it is no longer necessary, the anchor bolt can be easily removed by removing the cylinder, the holding ring, and the base body, so that there is no hindrance to the traffic thereafter.

In the road sign according to the present invention, since the hardness of the soft urethane elastomer and the hardness of the hard synthetic resin are each limited, the cylindrical body and the holding ring are fixed to the base body fixed to the road surface. The attachment and detachment becomes easier. Further, the cylindrical body according to claim 3 is:
It is made of the above-mentioned soft urethane elastomer, and since a plurality of ridges are provided in the lower part of the inner wall surface of the cylindrical part in the shape of a vertical rib, the restoring force when bent or stepped on is improved. Excellent and excellent in durability. The lower end of the cylindrical portion has a integrally formed flange portion, and the ridge is formed upward along the outer peripheral edge of the flange portion. Can be removably attached to the camera.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is a longitudinal sectional view showing another example of the anchor bolt.

[Explanation of symbols]

10: cylindrical column, 14: longitudinal ridge, 15: flange, 16: ridge along the outer peripheral edge of the flange, 2
0: base body, 21: ridge on base body outer periphery, 22:
Convex part, 24: bolt hole, 30: holding ring, 31: concave groove, 32: locking edge, 33: inclined edge.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Naoshi Sumimoto 2-1-1-10 Minamikaneda, Suita-shi, Osaka Toyo Tire & Rubber West Japan Co., Ltd. (72) Mitomi Ishida 1 Edobori, Nishi-ku, Osaka-shi, Osaka Chome 17-18 Inside Toyo Tire & Rubber Co., Ltd. (56) References Hikaru 3-122111 (JP, U)

Claims (3)

(57) [Scope of request for utility model registration] 1. A road sign comprising a cylindrical column and a base for holding the lower end of the column in a detachable manner so that the column stands upright on a road surface, wherein the column is made of a soft urethane elastomer. in it and a circular flange portion of the cylindrical portion and the cylindrical portion the lower end of the lower end opening which is integrally formed, a plurality of projections on the inner wall surface of the lower portion of the cylindrical portion, the width and
The rib is projected in the form of a vertical rib whose thickness gradually decreases from bottom to top , and a ridge is formed upward along the outer peripheral edge of the flange portion, and the base is a cylindrical flange. A circular base body made of a soft urethane elastomer covering the lower surface of the base body, and a holding ring made of a hard synthetic resin removably fitted to the outside of the base body. A locking portion is formed, and a bolt hole for inserting an anchor bolt is drilled in the projection, the flange portion of the cylindrical body is covered inside the holding ring, and the engaging edge engages with the ridge on the outer peripheral edge. A road sign characterized by the formation of. 2. The soft urethane elastomer has a hardness of JI.
The SA rubber hardness is 80 to 95 degrees, and the hardness of the hard synthetic resin is Rockwell hardness of 100 to 120 degrees.
Road sign described. 3. A cylindrical part having a lower end opening integrally formed of a soft urethane elastomer and a circular flange part at a lower end of the cylindrical part, and a plurality of ridges are provided on an inner wall surface at a lower part of the cylindrical part . As its width and thickness went from bottom to top,
As a result, a ridge is formed in the shape of a vertical rib that gradually becomes smaller , and a ridge is formed upward along the outer peripheral edge of the flange portion.
A cylindrical body for a road sign, which is characterized in that: