JPH09170207A - Elevatable rotary type road traffic-control sign - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the scenery of a road from spoiled by storing the traffic- control sign in parallel with the median strip of the road or a guide rail at a shoulder of the road at a lower position during unuse even though it is permanently laid, and to prevent the traffic-control sign from being spoiled with dust or snow by storing the traffic-control sign in a casing when it is stored. SOLUTION: An elevatable rotary type road traffic-control sign device is composed of an inner cylinder 4, an outer cylinder 8 attached thereto with a sign such as a caution sign, a regulating sign or an auxiliary sign, and elevatably and rotatably supported through the intermediary of the inner cylinder 4, a ball and screw shaft 3 located in the inner cylinder 4 and rotated by a motor 2, a nut 6 screwed onto the ball and screw shaft 3, a guide bar 9 coupling the nut 6 with the outer cylinder 8, for elevating the outer cylinder 8 in association with the rotation of the ball and screw shaft 3, and outer cylinder rotating means 4c, 7 for turning the outer cylinder 8 by an angle of 90deg. in the vicinity of the upper terminal end of the elevation of the outer cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when performing road construction on a highway, is under construction before the construction site,
The present invention relates to a lifting / rotating road traffic sign device that can display a warning sign indicating a lane change, a regulatory sign indicating a maximum speed of 50 km / H, and an auxiliary sign indicating the distance to the construction site by moving up and down and rotating as necessary. .

[0002]

2. Description of the Related Art Conventionally, when performing road construction on a highway or the like, a warning sign indicating a lane change, a regulatory sign indicating the maximum speed, and an auxiliary sign indicating the distance to the construction site are under construction before the construction site. We had to repeat the work of installing a lot of guard rails on the shoulder side and the median strip side and removing them when the construction was completed.

[0003]

By the way, in order to temporarily install the above-mentioned warning sign, regulation sign and auxiliary sign, a heavy and large sign is carried from a work vehicle parked on the road shoulder, and the vehicle is traveling at high speed. There is a problem that it is extremely dangerous because it involves moving and crossing over existing highways.

The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a permanent magnet in parallel with a median strip or a guardrail of a road shoulder when not in use, although it is permanently installed.
In addition, since it is housed in a low position, it does not impair the road landscape, and when it is housed in the case in the housed state, it provides a lifting / rotating road traffic sign device that can prevent the sign from being soiled by dust or snow. It is in the field.

[0005]

The lifting / rotating road traffic sign device of the present invention is intended to achieve the above-mentioned object.
The means include an inner cylinder, an outer cylinder to which warning, regulation and auxiliary signs are attached and which is rotatably supported by the inner cylinder and can be rotated by a motor. A ball screw, a nut screwed to the ball screw, a guide bar that connects the nut and the outer cylinder, and moves the outer cylinder up and down as the nut moves up and down by rotation of the ball screw, and near the rising end of the outer cylinder. And an outer cylinder rotating means for rotating the outer cylinder by 90 degrees.

Further, the outer cylinder rotating means is integrally formed on the inner peripheral surface of the inner cylinder, and has a guide rail bent in a 90 degree spiral shape in the vicinity of the upper end, and the nut guided by the guide rail. And a guide member integrally formed therewith, and it is preferable that the outer cylinder is housed in a case that covers the entire body including the marker when the outer cylinder is in the lowered state.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a lifting / rotating road traffic sign device according to the present invention will be described below with reference to the drawings. In FIGS. 1 to 4, a motor 2 (see FIG. 5) is fixed with 1 as a base. A spur gear 2a is fixed to the output shaft of the motor 2. Further, 3 is a ball screw whose lower end is pivotally supported on the base 1 through a bearing 3a,
A spur gear 3b meshing with the spur gear 2a is fixed to the lower portion of the ball screw 3.

Reference numeral 4 denotes an inner cylinder arranged so as to cover the outer circumference of the ball screw 3, and a lower end opening 4a is attached to the base 1 via a mounting plate 1a. A lid plate 5 that axially supports the upper end of the ball screw 3 via a bearing 3c is fitted and fixed to the upper end 4b of the inner cylinder 4.
Further, a guide rail 4c is formed on the inner peripheral surface of the inner cylinder 4 so as to extend straight from the lower side to the vicinity of the upper end and be bent 90 degrees in a spiral shape from the vicinity of the upper end to the upper end.

Reference numeral 6 denotes a nut screwed into the ball screw 3, and a groove 7a for holding the guide rail 4c on the upper surface.
The guide member 7 formed with is fixed. Reference numeral 8 denotes an outer cylinder slidably fitted into the outer circumference of the inner cylinder 4, and two sliding metals 8 slidably contacting the inner cylinder 4 below the inner peripheral surface.
a is fixed so that the outer cylinder 8 does not swing when the outer cylinder 8 slides on the inner cylinder 4.

The lower end of 9 is fixed to the guide member 7,
In addition, two guide bars standing parallel to the inner side of the inner cylinder 4 are formed, and the upper end of the guide bar penetrates two guide holes 5a formed in the lid plate 5 and has a length of 90 degrees. It is fixed to a lid plate 10 fixed to the upper end of the cylinder 6.

In FIGS. 5 and 6, 11 is a warning sign indicating a lane change during construction, 12 is an auxiliary sign indicating the distance to the construction site, and these are fixed to the outer cylinder 8 by the metal fittings 13. . Reference numeral 14 is a case that covers the above-mentioned structure, and the lower end and the upper end are open. At the lower end, it is fixed to a road shoulder or a foundation (not shown) provided in the median strip as appropriate, and the upper end is a rubber plate or the like. With elasticity of 2
It is covered with the divided elastic plate 15.

Next, from the state in which the outer cylinder 8 is lowered with respect to the inner cylinder 4 (see FIG. 1) and is housed in the case 14 (see FIG. 5) to the display state shown in FIG. The operation of shifting to step will be described. Since the signs 11 and 12 are housed in the case 14, dirt due to dust or snow is prevented.

When the work vehicle arrives at the construction site on the highway, the motor 2 is driven by remote control such as radio,
The ball screw 3 is rotated via the spur gears 2a and 3a.
When the ball screw 3 rotates, the guide member 7 is in a non-rotatable state by the guide rail 4c of the inner cylinder 4 in the fixed state, so that the nut 6 fixed to the guide member 7 starts to rise.

Therefore, the outer cylinder 8 attached to the guide member 7 via the guide bar 9 starts to rise. In this rise, the warning sign 11 projects from the opening of the case 14 so as to break the elastic plate 15.

The end of this rise, that is, the auxiliary sign 12
Since the guide rail 4c is bent in a 90-degree spiral shape at a time point when it protrudes from the elastic plate 15, the guide member 7 guided by the guide rail 4c is rotated by 90 degrees along the curve of the guide rail 4c. It At this time,
The guide bar 9 also rotates, but moves in the guide hole 5a of the cover plate 5.

The rotation of the motor 2 is stopped at the position where the guide member 7 comes into contact with the cover plate 5, and the warning sign 11 and the auxiliary sign 12 are displayed in a state of being rotated 90 degrees with respect to the case 14. That is, since the case 14 is installed parallel to the guardrail of the highway, the sign 11,
12 is displayed so as to face the vehicle at a right angle to the guardrail, so that the driver can clearly see it.

Further, in the state where the signs 11 and 12 are stored as described above, the signs 11 and 12 are attached to the case 14
Since it is stored inside, there is a sign 11,
12 is not visible, and even if it is not covered by the case 14, it is parallel to the guardrail, so the driver can see signs 11, 1
2 is hard to see.

In the above-described embodiment, the guide rail 4c formed on the inner cylinder 4 and the guide member 7 fixed to the nut 6 are engaged with each other as means for rotating the outer cylinder 8. Although shown as one, it may be rotated by 90 degrees between the inner surface of the outer cylinder 8 and the outer surface of the inner cylinder 4.

In the above embodiment, the opening of the case 14 is covered with the elastic plate 15. The means for closing the opening is as follows. It is also possible to open and close the lid plate that can be opened and closed by interlocking with the vertical movement of the outer cylinder 8.

[0020]

As described above, according to the present invention, when the road construction is not being carried out, the sign for indicating the road construction is in a horizontal state with respect to the road such as a highway and is lowered. It is stored in the car and the sign is raised when it becomes necessary to display it by rotating it at a right angle to the roadway, so if it is not displayed it may be annoying to the driver. In addition, in the display state, the sign can be visually recognized.

Moreover, since the operation can be performed by driving the motor, it is possible to perform display and non-display by remote operation without the operator having to go to the sign, and therefore the operator can be protected from danger.

Further, since the sign device is covered with the case in the non-display state, and the sign is made to project from the case in the display state, the sign may be dusted or snowed or jumped up when the vehicle is running in the non-display state. It has the effect of preventing dirt and the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a lifting / rotating road traffic sign device according to the present invention.

FIG. 2 is a cross-sectional view of a state in which the outer cylinder of the same is raised.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a front view of a state in which a sign is stored in a case.

FIG. 6 is a side view showing a state in which the marker is projected from the case.

[Explanation of symbols]

 2 motor 3 ball screw 4 inner cylinder 4c guide rail 6 nut 7 guide member 8 outer cylinder 9 guide bar 11 warning sign 12 auxiliary sign 14 case

Claims (3)

[Claims] 1. An inner cylinder, an outer cylinder on which signs such as warning, regulation, and auxiliary signs are attached, and which is rotatably and vertically supported via the inner cylinder, and a motor provided in the inner cylinder and rotated by a motor. Ball screw, a nut screwed to the ball screw, a guide bar that connects the nut and the outer cylinder, and moves the outer cylinder up and down as the nut moves up and down by the rotation of the ball screw, and a rising end of the outer cylinder. An elevating / rotating road traffic sign device comprising: an outer cylinder rotating means for rotating the outer cylinder by 90 degrees in the vicinity thereof. 2. The outer cylinder rotating means is integrally formed on the inner peripheral surface of the inner cylinder and is bent 90 degrees in a spiral shape near the upper end, and the nut is guided by the guide rail. The lifting / rotating road traffic sign device according to claim 1, wherein the guide member is integrally formed with the guide member. 3. The elevating / rotating road traffic sign device according to claim 1, wherein the hoisting and rotating road traffic sign device is housed in a case that covers the whole of the sign including the sign when the outer cylinder is in a lowered state.