JPS5815973Y2 - Highway speed limit sign - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to speed limit signs on expressways that cannot be recognized normally but become visible when a command is issued.

To use the expressway, go through the tollgate, follow the speed limit signs, and drive slowly to the main line, then enter the acceleration lane parallel to the main line and accelerate to catch cars coming from behind on the main line. Enter the main line while being careful.

In this case, even if an abnormal situation such as a stagnation of cars or an accident occurs on the main line and it is necessary to change the speed beyond 100 mph, there are no speed limit signs on the acceleration lane or on the main line, so it is normal to This is extremely dangerous as a car accelerating in the acceleration lane will enter the main lane.

The conventional speed limit signs used in this situation, which simply have numbers written on them, have a weak ability to attract the attention of drivers and are less effective as signs.

The present invention eliminates this drawback and provides a speed limit sign that strongly attracts the driver's attention.

In the drawings showing one embodiment of the present invention, reference numeral 1 shows an outer cover 3 made of transparent glass on the surface of a circular shell 2, and a peripheral ring portion 4 serving as a sign and a speed limit on the inside of the outer cover 3. A substrate in which the numeral part 5 shown in FIG. 8, a speed limit sign consisting of a neon transformer 9 and a flashing relay 10, 11 a hood provided on the front, 12 a mounting bracket, and 13 a fixed iron pole.

Speed limit sign 1 is installed at an appropriate location such as an acceleration lane,
When an abnormal situation occurs on the main line, etc., when the power is connected at the control center or a command is issued, the neon tube lights up and blinks, and the red ring part 4 and the speed limit are displayed on the black board 8. By clearly displaying the number 5, it is possible to strongly attract the driver's attention, make him obey the speed limit, and prevent accidents from occurring.

In this case, since the lighting tubes in the groove 6 are installed in parallel, it is expressed in the same way as if bold letters were displayed, and since the inside of the groove 6 is painted black, Since there is no reflection phenomenon and the letters are displayed in a sharply raised manner, they can be read clearly from a distance and will not be misread even from a fast moving vehicle.

In addition, since a transparent lighting tube is used for the number part 5 and the groove 6 is painted black, if it is not lit, the letters will not appear at all and cannot be read, causing a mistake to hikers in the car. Never.

Furthermore, since the entire surface of the board 8 including the groove 6 is painted black, it absorbs the light reflected from the cover and prevents the scattering phenomenon that occurs inside, and only the light that has passed through the cover exits to the outside. Therefore, the displayed characters are expressed clearly.

When a command is not issued, the board 8 is black and the neon tube is transparent and solid black, making it impossible for the driver to recognize the number 5 indicating the speed limit.

In one embodiment, a circular shell plate 2 is used, but shells 2 of other shapes may also be used.

Further, although a transparent plate glass is used for the outer cover 3, it may be made of a transparent material other than plate glass as long as it can protect the substrate 8.

In addition, neon tube 1 was used to illuminate the annular portion 4 and the numeral portion 5, but if the tube is transparent or nearly transparent and can blink, and can be clearly displayed even on a black background, neon tube 7 may be used.
Other lighting tubes may also be used.

Further, although a neon transformer or the like is disposed inside the shell 2, it may be disposed outside if necessary.

In the present invention, the surrounding ring part 4 and number part 5 serving as a sign are shaped with grooves 6, and the ring part 4 and number part 5 are colored in parallel along the entire inner peripheral wall of the groove 6. In addition to arranging a transparent illumination tube for marking, the entire surface including the groove 6 is painted black.The board 8 is housed in a shell body 2 with a transparent outer cover 3, and the illumination tube is installed according to a command. Since the speed limit sign for expressways is equipped with a flashing device, it has the following effects.

■Since a transparent lighting tube is used on a black background, it cannot be recognized under normal conditions, but once a command is issued, it is clearly displayed with colored lighting on a black background and flashes.Furthermore, it prevents reflection phenomena, so drivers can It is possible to prevent accidents by ensuring that the speed limit is observed without attracting the attention of the driver and causing further misunderstandings.

2. The illumination tubes for the numerals are installed in parallel, so the display looks the same as thick letters, and it also prevents reflection, so the letters stand out sharply and can be seen even from a distance. It can be clearly read even from the top of a vehicle, which helps prevent accidents.

3. Since no special materials are used, it can be provided at almost the same price as conventional lighting signs.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view with the outer cover removed, and FIG. 2 is a sectional view taken along line A-A. 2...Shell body, 3...Outer cover, 4...
... Annular part, 5 ... Number part, 6 ... Concave groove, 8 ... ... Board.

Claims (1)

[Scope of utility model registration request] The surrounding ring part 4 and the number part 5 serving as a sign are formed by a groove 6, and the ring part 4 and the number part 5 are colored and displayed in parallel along the entire inner peripheral wall of the groove 6. Each time a lighting tube is installed, the entire surface including the groove 6 is painted black.
A speed limit sign for expressways, which is housed in a shell body 2 with a transparent outer cover 3, and is equipped with a device that blinks the illumination tube according to a command.