JP3272139B2 - Cylindrical road sign wiping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION A columnar road sign wiping apparatus according to the present invention automatically wipes the side of a columnar road sign (hereinafter simply referred to as a sign) having a light reflecting material attached to the side of a cylindrical base. It is used to prevent dust and carbon in vehicle exhaust from adhering and contaminating the surface of the reflector, and to prevent the light reflecting ability of the sign from deteriorating.

[0002]

2. Description of the Related Art As a sign for standing on a center line or a curb of a road to clearly indicate the position, a diameter of 8 to 10 cm is used.
m, a light-reflecting tape as a light-reflecting material is attached to the side of a cylinder having a height of about 65 to 80 cm to reflect the headlights of the car, thereby allowing the car driver to confirm the position of the center line at night However, the surface of the light-reflecting material is gradually polluted by the dust that rolls up the car and the carbon content in the exhaust of the car. Especially in a tunnel, the contamination becomes remarkable. If the surface of the light reflecting material is stained in this way, the reflected light of the headlight is weakened, and the ability as a marker is reduced.

In order to prevent this deterioration in performance, the surface of the sign must be wiped off with a rag. Conventionally, this cleaning is performed manually at regular intervals, and there is no simple device for automatically cleaning.

[0004]

Frequent manual cleaning of the surface of a sign is difficult and dangerous because this operation must be performed on frequent traffic roads. In particular, cleaning work in a tunnel is dangerous.

[0005]

A column-shaped road sign wiping device according to the present invention loosely fits a lifting wheel having a brush attached to an inner peripheral surface thereof to a base of a sign, and a motor vehicle is mounted on an outer surface of the lifting wheel. A number of blades are formed to rotate the elevating wheels by receiving wind pressure generated by traveling. In order to raise and lower the elevating wheel, the blades are inclined, and the string hanging the elevating wheel is twisted and shortened.

[0006]

When the car runs too far beside the sign, the wind pressure generated by this will hit the blades of the hoisting wheels and rotate the hoisting wheels. When the blades are provided with an inclination, the lift wheel rises along the base while rotating, and when the lift wheel is hung by a string, the string is twisted by the rotation, and the lift wheel rises. When the elevating wheel rises while rotating in this manner, the brush attached to the inner surface of the elevating wheel rubs the side surface of the base, and removes attached dust and the like. When the wind pressure weakens and the wind stops coming after the car has passed, the hoisting wheel descends while rotating weakly, and the base is also rubbed with an inner brush.

[0007]

1 to 3 show a first embodiment of the present invention.
1 is a side view, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a perspective view of a part of a lifting wheel 7 .

The base 1 is made of a soft material such as rubber or polyurethane and has a hollow cylindrical shape, and its upper end is closed by a top plate 2 having small holes. A flange 3 is formed at the lower end of the base 1,
A screw is passed through the hole and fixed to the road surface, curb top surface, etc.
A light reflection tape 4 is attached to the side surface of the base 1.

A support ring 5 is fixed to a lower portion of the base 1.
An annular permanent magnet 6 is embedded in the upper surface of the support ring 5 with one pole up and the other pole down. The permanent magnet 6 is not limited to an integral ring, but may be a ring in which a plurality of permanent magnets are arranged in a ring. Above the support ring 5, the lifting wheel 7 is loosely fitted to the base 1 loosely.

The lift wheel 7 is made of a soft and lightweight resin such as polyurethane or nylon, and has a brush 8 on its inner peripheral surface.
Affix. The brush 8 is made of a base cloth in which nylon fibers are planted, a coarse nylon woven cloth, or the like, and is attached to the inner peripheral surface of the elevating wheel 7 with a gap between the brush 1 and the base 1. A permanent magnet 9 having the same diameter as the permanent magnet 6 of the support ring 5 is provided on the lower surface of the lifting wheel 7.
Is embedded so that the same pole faces the permanent magnet 6. A large number of blades 10 are radially formed on the outer periphery of the lifting wheel 7.
The blades 10 are inclined so that the lift wheel 7 rotates and rises when receiving a cross wind. The angle of the inclination, the shape of the inclined surface, and the like are determined in consideration of the weight of the hoisting wheel 7 and the strength of the wind pressure.

At the upper end of the base 1, a stopper 11 having an outer diameter slightly larger than the inner diameter of the lifting wheel 7 is mounted. The stopper 11 is attached by aligning the small hole of the top plate 2 with the small hole at the center of the stopper 11, and press-fitting the pin 12 in a continuous shape to join.

With the above construction, the lifting wheel 7 loosely fitted to the base 1 floats above the support ring 5 because the permanent magnets 6 and 9 repel each other, and is easily lifted with a light force. It is rotating.

The lifting wheel 7 is externally fitted in a floating state as described above.
Next to standing Terra the base 1 only runs the car, this wind pressure caused by the hits the blade 10, the lifting wheel 7 rotates.
Since the blade 10 is inclined, it receives an upward pressure due to the wind pressure applied thereto, and the lift wheel 7 rises while rotating. When the wind pressure is reduced after the car has passed, the hoisting wheel 7 descends along the base while still rotating. When the lift wheel 7 moves up and down along the columnar base 1 in this manner, the brush 8
1. Make contact with one side. Although this contact area is small in a single lift, the lift caused by the movement of many cars results in the automatic wiping of all sides of the base 1 .

FIGS. 4 to 7 show a second embodiment of the present invention.
4 is a side view, FIG. 5 is a longitudinal side view, FIG. 6 is a bottom view of the lifting wheel 17 , and FIG. 7 is a perspective view of a part of the fixed guide 13 .

[0015] The base 1 was stuck to the reflective tape 4 is Flip the same as those of the first embodiment. A fixed guide 13 is fixed to the upper end of the base 1 by a pin 12 together with a string fixing ring 14 in the same manner as the stopper 11 of the previous example. This fixation can be more reliably performed by using an adhesive. Four (not limited to four) protrusions 16 having grooves 15 in the radial direction are formed on the fixed guide 13. At the edge of a lift wheel 17 made of a soft, lightweight resin such as polyurethane or nylon and having a brush 8 stuck to the inner surface and loosely fitted to the base 1, a head 18 having the same number of brackets 18 as projections 16 with holes 19 is provided at the edge. It is put out and embedded. A number of blades 20 in the radial direction are formed below the edge of the lifting wheel 17. The string fixing ring 14 and the hole 19 of the bracket 18 are connected by a string 21 passing through the groove 15.

With the above configuration, the lifting wheel 17
Is suspended from the edge of the string fixing ring 14 by a string 21 and is rotatable. When wind pressure is applied to the blades 20 by running a car, the lifting wheel 17 rotates and twists the string 21 in the lateral direction. Therefore, the lifting wheel 17 is pulled up. When the wind pressure from the automobile is removed, the lifting wheel 17 descends while rotating. When the brush 8 rubs the side surface of the base 1 during the rotation, ascending and descending, the side surface of the base 1 is automatically wiped.

[0017]

The apparatus according to the present invention uses a wind pressure of an automobile traveling beside a road sign to lift and lower the lift wheel while rotating the lift wheel. The brush attached to the inner peripheral surface of the lift wheel and the base of the sign are used. Because it is made to contact and automatically wipes the base side,
No manual work is required for cleaning signs. Therefore, the sign can be safely cleaned without putting the worker at risk.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment.

FIG. 2 is a longitudinal sectional view of the above.

FIG. 3 is a perspective view of a part of a lifting wheel according to the first embodiment.

FIG. 4 is a side view of the second embodiment.

FIG. 5 is a longitudinal sectional view of the same.

FIG. 6 is a bottom view of a lifting wheel according to a second embodiment.

FIG. 7 is a perspective view of a part of a fixed guide.

[Description of Signs] 1 Base 2 Top plate 3 Flange 4 Reflective tape 5 Support ring 6 Permanent magnet 7 Lifting wheel 8 Brush 9 Permanent magnet 10 Blade 11 Stopper 12 Pin 13 Fixed guide 14 String fixing ring 15 Groove 16 Projection 17 Lifting wheel 18 Bracket 19 Hole 20 Blade 21 String

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B08B 1/04 E01F 9/00

Claims (2)

(57) [Claims] 1. A permanent magnet (6) on a lower surface of a columnar base (1) of a columnar road sign provided with a light reflecting material on a side surface, and on a top surface thereof.
Is fixed, the brush (8) is mounted on the inner peripheral surface, a plurality of inclined blades (10) are formed on the outer peripheral surface, and the lower surface is the same as the permanent magnet mounted on the support ring (5). A column-shaped road sign wiping device in which a lifting wheel to which a permanent magnet (9) having the same pole opposite thereto is attached is loosely fitted to the base (1). 2. A lifting and lowering method in which a brush (8) is mounted on an inner peripheral surface of a cylindrical base (1) of a cylindrical road sign provided with a light reflecting material on a side surface and a plurality of blades (20) are formed on an outer peripheral surface. Wheel (1
7) Loosely fitting the outside, and connecting the other end of the string (21) having one end fixed to the upper part of the base (1) to the hoisting wheel (17) and hanging the hoisting wheel (17) to wipe the columnar road sign apparatus.