JPH0711840B2 - Single light emission signal - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-light type which notifies a moving body of progress by selectively changing the color of an optical filter facing a light source, by the color difference of light emitted from the filter to the outside. It relates to a light emission signal device.

[0002]

2. Description of the Related Art Conventional traffic lights have the same number of light sources as red, blue and yellow, and so-called three-color traffic light filters or red and blue two-color optical filters. A traffic control signal that can be easily installed by installing a multi-light type light emission signal that informs the body whether or not to proceed at a construction site etc. and allowing a moving body to pass through a narrow road alternately due to construction There is.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned conventional technique, three or two light sources corresponding to red, blue and yellow or red, blue and three or two color optical filters are selectively turned on and off. Since the structure is large, the housing is long and horizontally long or vertically long, and a strong support is required for supporting the housing, which causes inconvenience in transportation and installation.

In order to eliminate the above-mentioned problems, the present invention uses a single light source as a light source and rotates a three-color optical filter so that red, blue, and yellow light can be emitted from one transparent portion for easy viewing. The purpose is to reduce the size and weight of the traffic light and improve its handling.

[0005]

The object of the present invention described above is a canopy having a light source above a fixed outer cylinder provided with a transparent portion and a reflector for reflecting light from the light source toward the transparent portion. And the optical filters of three colors of blue, yellow, and red are sequentially arranged endlessly around the rotating inner frame coaxially arranged in the fixed outer cylinder, and the center of the bottom plate of the rotating inner frame is attached. The rotary disc mounted on the pivot is engaged with one of three pins protruding from the upper surface of the rotary disc into three divisions, and the rotary disc is moved to 1
The end of the stop rod cooperates with the first plunger in one of the three recesses formed in the three locations associated with the position of the pin of the first circular plate and the rotating disk rotated by 20 °. This can be achieved by including a second plunger that inserts the portion and orients the rotating disk.

[0006]

In the single-light emission signal device of the present invention, when only one light source is turned on, there are three colors of blue, yellow and red arranged around the rotating inner frame located at a position facing the transparent portion of the fixed outer cylinder. The colored lights of the above three colors can be sequentially projected to the outside through one of the optical filters.

In this rotating inner frame, the first plunger engages with one of the three pins projecting at the position where the upper surface of the rotating disk mounted on the central pivot of the bottom plate divides into three parts. The rotating disc and the rotating inner frame are
Rotate by 0 °.

During rotation of the rotating inner frame, the second plunger operates in cooperation with the first plunger, and the end of the stop rod swinging by the second plunger causes the rotating disk to move. It is inserted into one of the three recesses provided on the peripheral surface, and the rotating inner frame rotates 120 ° and stops. Hereinafter, the first and second
With the operation of the plunger, the rotating inner frame sequentially rotates in one direction by 120 degrees.

Therefore, even with a single light source, colored light can be projected from the transparent portion of the fixed outer cylinder in the order of blue, yellow, and red, so that it can be used as a signal device for informing the moving body whether or not it is advancing.

[0010]

EXAMPLES Examples will be described with reference to the drawings. First, as shown in FIGS. 1 and 2, the basic structure of the present invention is that this single-light emission signal device includes a fixed outer tube 2 made of an opaque member such as metal or synthetic resin provided with a transparent portion 1, and an upper portion thereof. A canopy having a light source 3 such as a light bulb and a reflector 4 such as a concave mirror for reflecting the light from the light source toward the transparent portion 1
I'm wearing 5

Further, as shown in FIG. 5, a rotating inner frame having three transparent portions which are coaxially arranged in the fixed outer cylinder 2 is provided.
Optical filters 7B, 7Y, and 7R of three colors of blue, yellow, and red are sequentially arranged endlessly on the peripheral surface of 6 corresponding to the transparent portion.

Then, as shown in FIG. 6, three projections are formed at three divided points on the upper surface of the rotary disk 10 coaxially fixed to the central axis 9 of the bottom plate 8 of the rotary inner frame 6 as shown in FIG.
A first plunger 12 which engages one of the individual pins 11 and 11 and rotates the rotary disc 10 by 120 ° is arranged as shown in FIGS. 8, 9, 10 and 11.

The three pins 1 on the peripheral surface of the rotating disk 10
One of the three recesses 13 formed as shown in FIG. 6 at the three locations associated with the positions 1, 11 cooperates with the first plunger 12 to provide the stop rod 14 as shown in FIG. It is provided with a second plunger 15 for inserting the end portion and orienting the rotating disk 10.

More specifically, as shown in FIG. 4, on the outer side of the rotating inner frame 6 on the opening end side, a disk-shaped pulley 16 is rotated to a position where the cylinder circumference is divided into a plurality of portions (in this embodiment, four divisions). The pulleys 16 are freely rotatably supported, and each of the pulleys 16 is in rolling contact with the inner surface of the fixed outer cylinder 2 to prevent swinging of the rotating inner frame 6 mounted in one-sided support by the lower pivot 9 at the time of rotation, so that the fixed outer cylinder 2 It is configured to rotate smoothly inside.

Air holes are formed in the reverse plate-shaped canopy 5, the bottom plate 8 of the rotary inner frame 6 and the bottom plate 2a of the fixed outer cylinder 2, respectively, so that the air in the traffic light can be convected. There is.

As shown in FIGS. 6 to 8, the rotating disk 10 in the drive control unit DC for rotating the rotating inner frame 6 by 120 ° includes a boss 10a for mounting the pivot shaft 9 in the central portion, and a boss 10a. Three pins 11 and 11 are provided at positions where the circumference is divided into three parts, and semicircular recesses 13 and 13 are provided at three side surfaces corresponding to the pin mounting positions.

In addition, a pin 11 is provided at the end inside the housing 2b fixed on the lower plate 2a of the fixed outer cylinder 2 by inserting a pivot 9 projecting from the lower surface of the bottom plate 8 of the rotating inner frame 6. A first plunger 12 having a piston 12b with a self-projecting spring 12a for engagement and movement is arranged as in FIGS.

Further, one end is pivotally attached to the housing 2b, and the other end is provided with a roller 14a having a size to be fitted into the recess 13, and a stop rod is provided with a spring 14b to constantly apply a rotational force toward the rotating disc 10. Near the other end of 14 is mounted a second plunger 15 for separating the stop rod 14 from the rotating disc 10.

As shown in FIG. 7, the pivot 9 is inserted through the housing 2b via the slide seat plate 17, and the rotary disc 10 is fixed to the boss 10a of the rotary disc 10 at the shaft end by the screw. The rotating inner frame 6 is rotated by rotating the.

A transparent plate may be arranged on the transparent portion 1 of the fixed outer cylinder 2 if necessary.

The light source 3 is attached to a socket attached to the canopy 5 as shown in FIG.

The single-light emission signal device of the present invention has the above structure, and its operation will be described below. Rotating inner frame 6
As shown in FIGS. 8 to 10, by the cooperation of the first and second plungers 12 and 15, they are intermittently rotated by 120 ° each as follows.

When stopped in the state shown in FIG. 8, blue colored light is transmitted through the transparent portion 1 of the fixed outer cylinder 2 and the rotating inner frame 6 of FIG. 1 through, for example, the blue optical filter 7B. 1
Light is emitted to the outside through.

After this, the first plunger 12 and the second plunger 12
When a driving pulse is applied to the plunger 15 of FIG. 2 with a certain time difference so that the electric signal output portion (not shown) may be energized to the second plunger 15, the stop rod 14 rotates against the force of the spring 14b. The roller 14a is rotated in the direction of separating from the disk 10 to be ejected from the recess 13 as shown in FIGS.

When the roller 14a finishes escaping, the piston
When the first plunger 12 is energized and moved while the pin 12b is engaged with the pin 11 as shown in FIG. 9, the rotating disk 10 rotates 120 ° as shown in FIGS. Immediately after that, the power to the first plunger 12 was cut off, and this plunger 12
Is returned to the pre-operation position by the spring 12a as shown in FIG.

The rotating disk 10 itself continues to rotate due to the force applied by the first plunger 12 and the inertial force, but before the rotating disk 10 has finished rotating 120 °, the second rotating disk 10 as described above. Since the plunger 15 has been de-energized, the stop rod 14 is returned by the spring 14b as shown in FIG.
14a fits into the recess 13 and the rotating disc 10 can be stopped by rotating 120 °.

With the above rotation, the rotating inner frame 6 is rotated by 120 °, the optical filter 7Y faces the transparent portion 1 of the fixed outer cylinder 2, the light from the light source 3 is colored yellow, and this yellow light is emitted to the outside. To project.

Similarly, when the rotary disk 10 further rotates 120 °, the optical filter 7R faces the transparent portion 1 and projects red colored light to the outside for about 60 seconds. By the same operation, blue colored light can be projected to the outside again for about 60 seconds, but the duration of the yellow light is about 5 to 7 seconds.

As shown in FIG. 12, the single-light emission signal device A should be installed at two locations on the construction site, and the operation of one of the signal devices should be preceded by 1/3 of the total operation. It can be used as a traffic signal for alternate traffic.

The light emission times of blue, orange, and red are two sets of electrical signals applied to the first and second plungers 12 and 15, and the following two.
By arbitrarily selecting a pair of signals and an interval between the following two sets of signals, it is possible to distinguish between the side having a large traffic volume and the side having a small traffic volume and change the light emission time of blue and red or red and blue.

[0031]

Since the present invention is constructed as described above, it has the following effects.

Since it is a single lamp, the traffic light itself can be made compact, and the transparent part can be made as large as possible compared to the three-lamp type, so that it is easier to see from a distance, and since there is only one light source, it is an initial consumable item. This has the effect of reducing costs.

According to the second aspect, it is possible to provide the effect that the rotating inner frame can be smoothly rotated.

[Brief description of drawings]

FIG. 1 is a vertical sectional elevation view of a single-light emission signal device of the present invention.

FIG. 2 is an exploded cross-sectional view of each member shown in FIG.

FIG. 3 is a perspective view in which a part of what is shown in FIG. 1 is cut away.

4 is a cross-sectional plan view taken along the line AA in FIG.

5 is a cross-sectional plan view taken along the line BB in FIG.

FIG. 6 is a perspective view showing an example of a rotating disc.

FIG. 7 is an enlarged cross-sectional view showing details of a drive control unit.

FIG. 8 is an operation explanatory diagram of a drive control unit.

9 is an explanatory diagram of an operation in a state different from that of FIG.

FIG. 10 is an explanatory diagram of an operation in a state different from that of FIG.

11 is an explanatory diagram of an operation in a state different from that of FIG.

FIG. 12 is an explanatory diagram of a usage state

[Explanation of symbols]

 1 Transparent part 2 Fixed outer cylinder 3 Light source 4 Reflector 5 Canopy 6 Rotating inner frame 7B, 7Y, 7R Optical filter 8 Bottom plate 9 Axis 10 Rotating disc 11 Pin 12 First plunger 13 Recess 14 Stop rod 15 Second Plunger

Claims (2)

[Claims] 1. A single-light type signal device that informs a moving body whether or not to proceed by selectively changing the color of an optical filter facing a light source, by the color difference of the light emitted from this filter to the outside. Light source on top of fixed barrel 2 with part 1
A canopy 5 having 3 and a reflector 4 for projecting light from this light source toward the transparent portion is attached, and blue and yellow are used as a peripheral surface of a rotating inner frame 6 coaxially arranged in the fixed outer cylinder 2.・ Red 3
The optical filters 7B, 7Y, 7R of the respective colors are sequentially arranged endlessly, and the three pins projecting from the rotating disk 10 attached to the central axis 9 of the bottom plate 8 of the rotating inner frame 6 are divided into three parts. A first plunger 12 which engages with one of 11, 11 and rotates the rotating disk 10 by 120 ° is provided, and the rotating disk is also provided.
The first plunger is provided in one of the three recesses 13,13 formed at three locations associated with the positions of the three pins 11,11 of the ten.
A single-lamp light emission signal device comprising a second plunger (15) which cooperates with (12) and inserts an end portion of a stop rod (14) to orient the rotating disk (10). 2. A pulley 16 which rolls on the inner surface of the upper portion of the fixed outer cylinder 2.
2. The single-lamp light emission signal device according to claim 1, wherein the rotating inner frame 6 is pivotally provided at at least three places on the outer peripheral surface of the upper part.