JPH085088Y2 - Snow removal device for traffic lights - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention is a snow removal device for a traffic light having an improved structure for preventing a visibility obstacle caused by snow adhering to the lens of a color light type traffic light. It is about.

(Prior Art) A colored light type traffic light for railways installed in a snowy country has a problem that the snow that is winded up by wind pressure adheres to the surface of the traffic light lens and makes it difficult to see the display during a snowstorm or when a train passes by. Often.

For this reason, in the past, the train was slowed down to check the signal display, or if a large amount of snow adhered and the display could not be confirmed, the train was stopped once and the driver removed the snow on the signal lens to display the signal. The method of ensuring stability was to confirm.

In such a snow country, especially in areas with frequent snowstorms and areas with strong wind and snow, it is not possible to secure safe or regular train running due to the large amount of snow on the signal lens. Is.

In order to prevent snow from accumulating on the lens of such a traffic light, conventionally, for example, as shown in FIG. 11, an inverted U-shape that covers the upper portion and both sides of the lens 2 is provided on the front surface of the color signal type traffic light body 1. The hood 3 was installed to prevent snow from accumulating with the snow-proof hood that doubles as a scissor.

However, although this snow hood is effective against wind and snow from the lateral direction and the upper side of the traffic light, when the wind and snow is blown from the front direction of the traffic light body 1, there is no snow protection effect.

For example, when a 100 km / h limited express train passes, a wind speed of 8-12 m / s occurs for 5-6 seconds and the maximum instantaneous wind speed is 15 m.
Reach / s. At this time, when a large amount of snow is blown from the frontal direction instantaneously, the snow directly hits the surface of the lens 2, so that a large amount of snow adheres and it becomes impossible to secure the signal display, which is not effective.

Separately from this, as shown in FIG.
A reverse U-shaped hood 3 that covers the upper part and both sides of the lens 2 is attached to the front surface of the lens 2, and a plurality of electric sheath wire heaters 5 are attached to the front opening 4 of the hood 3 at intervals. Being developed.

However, the amount of snow melted by the method using the electric sheath wire heater 5 is a slight amount adhered to the surface of the heater 5, and the snow melts when a large amount of snow is momentarily blown in like snowstorm. It takes time to get there, and it may not match the train passage timing.

If the electric power supplied to the heater 5 is increased to solve such a problem, not only problems such as an increase in power consumption and an increase in running cost occur, but also a large amount of snow melting water becomes icicles, and if this is dropped, the vehicle will fall. There is a risk of damage and it has not spread.

(Problems to be solved by the invention) The present invention eliminates the above-mentioned drawbacks, and with an extremely simple structure, it is possible to reliably prevent snow from adhering to the lens during wind and snow and passing trains to facilitate signal visibility, The present invention provides a traffic signal snow removal device for safe and regular train travel.

[Structure of the Invention] (Means for Solving the Problems) The snow removing device for a traffic light according to claim 1 of the present invention is an inverted U-shape that covers the upper part and both sides of the lens on the front surface of the main body of the color light traffic light. A hood is attached, and a partition plate having a light beam passage opening through which light emitted from the lens passes is provided with a partition plate having substantially the same longitudinal sectional shape as the hood.
A plurality of or a plurality of sheets are installed in the hood in the vertical direction with a space therebetween to form a plurality of space portions in the hood, and the space portion on the lens side is provided with an ejection port for ejecting compressed air into the hood. This is the summary.

According to a second aspect of the present invention, in the snow removal device for a traffic light, an inverted U-shaped hood that covers the upper portion and both sides of the lens is attached to the front surface of the main body of the colored light traffic light so that light emitted from the lens passes through. In the hood, a partition plate having a vertical cross-sectional shape of the hood, which has a light beam passage opening in the light beam passage, is installed vertically in the hood at one or more intervals along the light beam passage. The gist of the present invention is that a plurality of space portions are formed in and the bottom portion of the space portion formed on the lens side is closed by a bottom plate.

Further, the snow removing device for a traffic light according to claim 3 is characterized in that the partition plate is formed of a transparent plastic plate.

(Operation) The operation of the snow removal device for a traffic light which is the first gist of the present invention will be described. Snow is winded up by wind pressure during wind and snow and when a train passes near the traffic light. The wind from the inside is blocked by the hood to prevent it from being blown into the interior.

When wind and snow blows in from the front of the traffic signal, it collides with the partition plate and the course is bent downward.

On the other hand, the compressed air blown from the blower jet to the lens side space flows while being guided by the partition plate, and part of it blows forward from the light beam passage opening on the partition plate and blows into the hood. It collides with and falls from the bottom opening.

Further, the function of the snow removal device according to claim 2 of the present invention, which is not provided with a blower, is that, when wind and snow that are wound up by wind pressure flow into the hood from the front opening, they hit a plurality of partition plates having light beam passage openings. The wind speed is gradually weakened, and the space on the lens side is closed by the bottom plate, so the wind cannot be passed through and it is pushed back, so it is impossible to reach the vicinity of the lens and most snow does not have a bottom plate attached. It is designed to fall from the bottom opening of the space.

Further, in the snow removal device according to claim 3 of the present invention in which the partition plate is formed of a transparent plastic plate, the driver can check the color of the lens through the transparent partition plate even near the traffic signal. .

(Embodiment) Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.

FIG. 1 and FIG. 2 show an embodiment of the present invention. An inverted U-shape that doubles as a scissor that covers the upper part and both sides of the lens 2 on the front surface of the colored light type traffic signal main body 1 fixed to the column 6. A shaped hood 3 is attached.

Further, the partition plate 14 is formed in a shape which is substantially the same as the vertical cross-sectional shape of the hood 3, and three circular light beam passage openings 13 are opened so as to face the light beam passage paths 12. The partition plate 14 is attached vertically in the hood 3 with its lower side inclined to the lens 2 side, and two space portions S1 and S2 are formed in the hood 3.

The partition plate 14 is formed of a transparent plastic plate such as a transparent acrylic plate.

A blower 7 is attached to the upper part of the hood 3 forming the space S1 on the lens 2 side, and a jet port 8 inserted in the space S1 is attached downward.

Next, the operation of the snow removal device will be described. The blower 7
The compressed air jetted from the jet outlet 8 of the No. 8 is guided by the partition plate 14 and flows downward, and since the lower part of the space S1 is narrowed, the wind speed is accelerated and partly increased from the light beam passage 13 to the space S2. Gushes into.

On the other hand, the wind and the snow 9 which are rolled up by the wind pressure and blown into the hood 3 from the front opening 4 are separated by the inclined partition plate 14.
The path is bent downward at, and collides with the compressed air ejected from the light beam passing ports 13 ...

Therefore, it is possible to reduce the amount of snow 9 attached to the lens 2 at the same time without blocking the light beam passages 12.

Further, since the partition plate 14 mounted in front of the lens 2 is formed of a transparent plastic plate, the driver can check the color of the lens even near the traffic signal.

Using this device, we prepared 10 liters of wet sawdust for 30 seconds at a wind speed of 15 m / s, and sprayed this from the front of the traffic light to perform an experiment. The weight of sawdust adhering to the surface of lens 2 was 2378 mg. In comparison with the conventional hood 3 without the blower 7 shown in FIG. 11, the amount of adhesion is reduced to 30.4%.

Further, when an experiment was conducted while changing the wind speed to 10 m / s, the weight of the attached sawdust was 1460 mg, which was 40.3% as compared with the conventional hood 3 alone.

FIG. 3 and FIG. 4 show another embodiment, in which a partition plate 14 is formed by vertically arranging four blade plates whose lower part is curved toward the front opening 4 side and provided with light beam passage ports 13. Install,
The hood 3 has two space portions S1 and S2 formed therein.

In this structure, the compressed air ejected from the ejection port 8 is a partition plate.
The compressed air that is guided downward by the flow path 14 and is jetted from the light beam passage 13 to the space S2 is guided by the curved partition plate 14 and is blown downward. It can be further reduced.

FIG. 5 shows a different embodiment, in which two partition plates 14A, 14B are formed in which the front opening 4 side of the hood 3 is raised to form an introduction portion 15 and circular light beam passing ports 13 ... Are opened. , Its lower side is inclined toward the lens 2 side, and the light beam passage 12 is provided in the hood 3.
The three hoods S1, S2, and S3 are formed in the hood 3 by mounting the hood 3 at intervals.

In this structure, when the wind and the snow 9 wound up by wind pressure flow into the hood 3 through the front opening 4, first, the introduction portion is introduced.
It is bent downward by 15 and partition plate 14B, and most of the snow is in space S
It is discharged from the bottom opening 10 of 3.

Some of the snow 9 enters the space S2 through the light beam passages 13 of the partition plate 14B, but compressed air is jetted downward into the space S2 from the light beam passages 13 of the partition plate 14A. Therefore, it is possible to prevent the snow 9 that has entered the space S2 from colliding with the jetted compressed air, dropping downward, adhering to the lens 2 through the light beam passage ports 13 ...

Using this device, in the same manner as above, an experiment was conducted by blowing 10 liters of sawdust from the front of the traffic light at a wind speed of 15 m / s for 30 seconds, and the weight of sawdust adhering to the surface of the lens 2 was only 255 mg. The adhesion amount was 3.3% as compared with the conventional hood 3 alone shown in FIG.

Further, when an experiment was conducted while changing the wind speed to 10 m / s, the weight of the attached sawdust was 143 mg, which was an extremely small amount of attachment of 4.0% as compared with the conventional hood 3 alone.

In this way, by utilizing wind and snow or wind pressure generated when a train passes, this is positively taken in from the introduction part 15, and the traveling direction is bent downward inside this, and the light ray passage 12 is secured while the lens 2 surface is secured. It is possible to prevent the adhesion of snow to the.

FIG. 6 shows another embodiment in which the blower 7 is attached to the lower portion, and a partition plate 14 is formed opposite to the light beam passages 12 of the lenses 2 ... The upper side is inclined to the lens 2 side and is vertically mounted in the hood 3, and two space portions S1 and S2 are formed in the hood 3.

Further, a blower 7 is attached to a lower portion of the hood 3 forming the space S1 on the lens 2 side, and an ejection port 8 inserted in the space S1 is attached upward.

The action of the snow removal device is that the compressed air ejected from the ejection port 8 of the blower 7 flows upward as it is guided by the partition plate 14 and the upper side of the space S1 is narrowed, so that the wind speed is accelerated and the ray passage port is opened. 13 blows into the space S2, collides with the wind and the snow 9 that has blown into the hood 3, and is disturbed.
The particles are discharged from the bottom opening 10 of S2 and can be prevented from adhering to the lens 2.

FIG. 7 shows a different embodiment, in which the hood 3 is formed high, an introduction portion 15 is provided on the front surface of the hood 3, and a fan case 16 is provided behind the hood 3, and the blower 7 is housed therein.

Below this, there are three partition plates 14A to 14C each having a circular light beam passing port 13 ... Opened, and the lower side thereof is inclined toward the lens 2 side so as to be spaced in the hood 3 along the light beam passing path 12. Then, four space portions S1 to S4 are formed in the hood 3, and the bottom surface of the space portion S1 on the lens 2 side is closed by a bottom plate 17 to form a space in which the upper and lower sides are sealed.

In this structure, when the wind and the snow 9 wound up by the wind pressure flow in, it is first bent downward by the introduction part 15 and the partition plate 14C and further enters the space part S3, but most of the snow is the space part S4,
It is discharged from the bottom opening 10 of S3.

Some of the snow 9 further penetrates into the space S2 from the partition plate 14B, but the compressed air blown out from the blowout port 8 of the blower 7 blows downward, and the space S1 is closed so that the wind cannot pass through. Therefore, the snow 9 is pushed back and cannot enter, and the snow 9 can be prevented from dropping from the bottom opening 10 of the space S2 and adhering to the lens 2.

FIG. 8 shows an embodiment without a blower,
In the hood 3, three partition plates 14A to 14C having circular light beam passage openings 13 are attached at intervals, and a front plate 18 is attached to the front opening 4 to form four space portions S1 to S4. It is a thing. Further, the bottom surfaces of the space portions S1 and S2 on the lens 2 side are bottom plates 17
It is closed by and is a space where the top and bottom and both sides are sealed.

In this structure, when wind and snow 9 wound up by wind pressure flow into the hood 3 from the light beam passage port 13 of the front plate 18,
The wind speed is weakened by hitting the partition plate 14C. Further space S
Since 1 and S2 are closed except for the light beam passage port 13 and cannot pass through the wind, the wind pressure is gradually weakened and pushed back and cannot reach the vicinity of the lens 2, and most of the snow 9 is in the space S.
3, Fall from the bottom opening 10 of S4.

Using this device, in the same manner as above, an experiment was conducted by blowing 10 liters of sawdust from the front of the traffic light at a wind speed of 15 m / s for 30 seconds, and the weight of sawdust adhering to the surface of the lens 2 was 1890 mg. The attached amount was 24.1% as compared with the conventional hood 3 shown in FIG.

Further, when an experiment was conducted while changing the wind speed to 10 m / s, the weight of the attached sawdust was 1113 mg, and the attachment amount could be reduced to 30.9% as compared with the conventional hood 3 alone.

FIG. 9 shows another embodiment, which is a partition plate having a circular light passage opening 13 ... Opened on the lens 2 side in the hood 3.
14A is provided, and in the front thereof, four blade plates whose lower part is curved toward the front opening 4 side are provided with light beam passing ports 13 ... And partition plates 14B to 14D arranged vertically are attached at intervals, and a hood is provided. Three space parts S1 to S5 are formed in the space 3. Further, the bottom surface of the space S1 on the lens 2 side is closed by a bottom plate 17 to form a space in which the upper and lower sides and both sides are sealed.

Since this structure is formed by the curved blades of the partition plates 14B to 14D, the breeze and the snow 9 blown into the partition plates 14B to 14D.
The wind speed is gradually weakened and the heavy snow 9 is likely to fall.

FIG. 10 shows another embodiment different from the above, in which two partition plates 14A in which the front opening 4 side of the hood 3 is raised to form the introduction portion 15 and the circular light beam passing ports 13 ... Are opened, 14B is attached to the hood 3 with its lower side inclined to the lens 2 side with a space, and three space portions S1, S2, S3 are formed in the hood 3, and the bottom surface of the space portion S1 is defined by the bottom plate 17. It is a blockade.

In this structure, when the wind and the snow 9 wound up by wind pressure flow into the hood 3 through the front opening 4, first, the introduction portion is introduced.
It is bent downward by 15 and partition plate 14B, and most of the snow is in space S
It is discharged from the bottom opening 10 of 3.

Part of the snow 9 enters the space S2 through the light beam passages 13 of the partition plate 14B, but the space S1 cannot be passed through the wind and is pushed back to weaken the wind pressure. It partially falls and cannot reach the vicinity of the lens 2, and falls from the bottom opening 10 of the space S2.

Using this device, in the same manner as above, an experiment was conducted by blowing 10 liters of sawdust from the front of the traffic light at a wind speed of 15 m / s for 30 seconds, and the weight of sawdust adhering to the surface of the lens 2 was 807 mg. The adhesion amount was only 10.3% as compared with the conventional hood 3 shown in FIG.

In addition, when the experiment was performed with the wind speed changed to 10 m / s, the weight of the attached sawdust was 613 mg, and the attachment amount could be reduced to 17.0% compared to the conventional hood 3 only, and the wind pressure was used to introduce it. It was confirmed that it is more effective by positively taking in from 15 and bending the traveling direction downward. Although the partition plate is formed of a transparent plastic plate in the above-mentioned embodiment, it may be formed of an opaque metal plate, and the hood formed of transparent plastic like the partition plate is more visible. Are better.

Further, in the present invention, a Teflon film or paint having snow-slipping property may be provided on the upper surface of the hood, and a snow cutting plate or a snow stop plate may be further attached on the upper surface.

[Effects of the Invention] As described above, according to the present invention, due to the extremely simple structure, it is possible to reliably prevent a large amount of snow from adhering to the lens during wind and snow and when passing trains to facilitate the visual recognition of signals. It is possible to obtain a traffic light snow removal device that is intended for safe driving and regular driving.

[Brief description of drawings]

1 is a sectional view showing a snow removing device for a traffic light according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a sectional view showing a snow removing device according to another embodiment. FIG. 4 is a front view of FIG. 3, FIG. 5 is a cross-sectional view showing a snow removal device provided with two partition plates, and FIG. 6 is a cross-sectional view of a snow removal device provided with a blower under the hood. FIG. 7 is a cross-sectional view showing a snow removal device in which a blower is housed in a fan case, FIGS. 8 to 10 are cross-sectional views showing different snow removal devices without a blower, and FIGS. 11 and 12 are It is a perspective view which shows only the conventional hood 3. 1 ...... Signal body, 2 ... Lens 3 ... Hood, 5 ... Seas wire heater 6 ... Support, 7 ... Blower 8 ... Spout, 9 ... Snow 10 ... Bottom opening, 11 ... Air piping 12 …… Ray passage, 13 …… Ray passage 14, 14A-14D …… Partition plate 15 …… Introduction part, 16 …… Fan case 17 …… Bottom plate, 18 …… Front plate S1 ～ S5 …… Space section

Claims (3)

[Scope of utility model registration request] 1. An inverted U-shaped hood that covers the upper portion and both sides of the lens is attached to the front surface of the main body of the color light signal, and a light passage opening is formed in a light passage through which light emitted from the lens passes. A partition plate having substantially the same vertical cross-sectional shape as that of the hood is vertically installed in the hood at intervals of one or more along the light beam passage to form a plurality of space portions in the hood. A snow discharge device for a traffic light, characterized in that a jet port for jetting compressed air toward the inside of the hood is attached to the space part of the above. 2. An inverted U-shaped hood that covers the upper part and both sides of the lens is attached to the front surface of the main body of the color light signal, and a light beam passage opening is formed in a light beam passage through which light emitted from the lens passes. A partition plate having substantially the same vertical cross-sectional shape as that of the hood is vertically mounted in the hood at intervals of one or more along the light beam passage to form a plurality of space portions in the hood, and a lens. A snow removal device for traffic signals, characterized in that the bottom part of the space formed on the side is closed by a bottom plate. 3. The snow removing device for a traffic light according to claim 1, wherein the partition plate is formed of a transparent plastic plate.