JPH071642B2 - 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 easily emitted from one large transparent portion. 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 on a fixed outer cylinder provided with a transparent portion and a reflector for reflecting the light from the light source toward the transparent portion. A rotary inner frame coaxially arranged in the fixed outer cylinder, and three optical filters of three colors of blue, yellow, and red are sequentially arranged endlessly around the rotary inner frame, and the central axis of the bottom plate of the rotary inner frame is attached. A motor slidably coupled to the rotary inner frame, and the end of the stop rod engaged with one of the three recesses formed at the three positions of the rotary body related to the position of the optical filter is allowed to escape. This can be achieved by providing a plunger that releases the brake of.

[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.

That is, since the end of the stop rod is in the recess, the rotating inner frame in which the pivot is slidably connected to the rotating shaft when the motor is started is waiting to rotate.

When the rotating inner frame is waiting for sliding rotation, the end of the stop rod escapes from one of the three recesses provided in the rotating body such as the clutch disk due to the momentary excitation of the brake releasing plunger. When the rotating inner frame has rotated 120 °, the end of the stop rod engages with the next recess of the rotating body, and the rotating inner frame stops.

In the following sequence of operations of the motor and the plunger, the rotating inner frame is sequentially moved one by one through the slip coupling member.
Rotate intermittently by 120 degrees in each direction.

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

[0011]

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, the first clutch disk 10 coaxially fixed to the central axis 9 of the bottom plate 8 of the rotating inner frame 6 as shown in FIG. It engages with one of the three recesses 13, 13 provided, and the first clutch disc 10 is engaged as shown in FIGS. 8, 9 and 10.
Arrange the plunger 15 that stops when it rotates by 20 °.

FIG. 8 shows one of the three recesses 13 formed as shown in FIG. 6 at three places on the peripheral surface of the first clutch disk 10.
As shown in FIG. 3, the plunger 15 is provided for inserting the end portion of the stop rod 14 and positioning the first clutch disc 10 and the rotating inner frame 6.

More specifically, as shown in FIG. 4, a disk-shaped pulley 16 is rotated outside the opening end of the rotating inner frame 6 at a position where the cylinder circumference is divided into a plurality of parts (four parts in this embodiment). 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 rotating 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 first clutch disk 10 for slip coupling for rotating the rotating inner frame 6 by 120 ° is provided with a boss 10a for mounting the pivot shaft 9 in the central portion and a side surface. Semicircular recesses 13 and 13 are provided at three locations.

As the first clutch disk 10 and the second clutch disk 11, known opposed magnetic pole type magnet slip clutch disks are used.

A known friction engagement clutch may be used in which the first and second clutch discs 10 and 11 are simply discs, and a sliding seat plate such as felt is provided between the discs. If a motor with a large "slip" is used, the entire clutch mechanism can be omitted.

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 spring 14b constantly applies a rotational force in the direction of the first clutch disc 10. The first clutch disk 10 near the other end of the stopped rod 14
A plunger 15 is attached to pull the stop rod 14 away from the.

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

If desired, a transparent plate may be arranged in the transparent portion 1 of the fixed outer cylinder 2, and the light source 3 is attached to the socket attached to the canopy 5 as shown in FIG.
3 and 11, the portion indicated by reference numeral 2c indicates a stand member, and the reference numeral m in FIG. 7 indicates an opposing magnet.

The single-lamp light emission signal device of the present invention has the above structure, and its operation will be described below. Rotating inner frame 6
8 to 10, the motor 12, the first clutch disk 10, the second clutch disk 11 and the plunger 15 cooperate with each other to intermittently rotate by 120 ° as follows.

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

At this time, the roller 14a at the end of the stop rod 14 is placed in the recess 13 of the rotating body such as the first clutch disk 10 as shown in FIG.
As shown in the figure and the brake is applied to the rotating inner frame 6, even if the motor 12 is started, each clutch disc 1
Due to the sliding action between 0 and 11, the inner rotating frame 6 is only waiting to rotate.

When a drive pulse is applied to the plunger 15 from an electric signal output portion (not shown), the stop rod 14 is rotated in the direction of separating from the first clutch disc 10 against the force of the spring 14b. Roller 14a from recess 13 to FIGS. 8 to 9
After escaping as shown, return immediately.

When the roller 14a instantaneously escapes, the rotating inner frame 6 and the first
The clutch disc 10 and the clutch disc 10 rotate through about 120 ° as shown in FIG. 10 through the state shown in FIG.

Since the energization of the plunger 15 is released as described above before the first clutch disc 10 has finished rotating by 120 °, the stop rod 14 is returned by the spring 14b as shown in FIG. Since the roller 14a is fitted into the recess 13 and the first clutch disc 10 and the rotating inner frame 6 are rotated by 120 °, they can be stopped, and immediately before or immediately after that, the power supply to the motor 12 is cut off. To do.

With the above operation, since the rotating inner frame 6 rotates 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. Can be projected.

Similarly, when the rotating inner frame 6 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. 11, the single-light emission signal device A is installed at two locations in the front and rear of the construction site, and the operation of one of the signal devices is preceded by 1/3 of all operations. It can be used as a traffic signal for alternate traffic.

Also, the light emitting time of blue, orange, and red is the plunger 15
It is possible to distinguish the side with high traffic volume from the side with low traffic volume and change the light emission time for blue and red, and red and blue by arbitrarily selecting the electrical signal to be added to the next signal and the interval between the next signals. it can.

[0033]

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 as a consumable item. There is a first effect that the cost is reduced.

Further, according to the present invention, the rotational inner frame 6 is slidly rotated by the rotational force of the motor 12, and the plunger 15 can be firmly localized every 120 ° rotation, so that the stability is good.
There is also the effect of.

According to the second aspect, it is possible to provide the effect that the rotation of the rotating inner frame can be executed more smoothly.

[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 first clutch 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.

FIG. 11 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 First clutch disc 11 Second clutch disc 12 Motor 13 Recess 14 Stop rod 15 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 a motor 12 which is slidably coupled to the central axis 9 of the bottom plate 8 of the rotating inner frame 6 is provided, and the optical filters 7B, 7Y,
A plunger for releasing the brake of the rotating inner frame 6 by escaping the end of the stop rod 14 engaged with one of the three recesses 13, 13 formed at three positions of the rotating body related to the position of 7R. A single-light emission signal device comprising 15. 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.