LT4375B - A intermin mark of a number of a vevicle - Google Patents

Abstract

Invention is intended for recognition means and may be used for manufacturing of temporary transit vehicle number plates. The number plate produced of paper, for instance of waterproof cardboard, which density is 0.9-0.96 g/cm<3>, thickness - 1.7-2.75 mm, and surface of the plate in parts or entirely activated by light reflecting coating. Indexes of the plate may be bulging, produced by method of punching, or flat, typographically or photographically printed.

Description

The present invention relates to the manufacture of means of identification, more particularly to temporary transit vehicle number plates, and is used for mounting on a vehicle body.

Typically, in all countries, temporary transit plates are made of metal or plastic plates with raised or flat indices and, for easier identification, the vessels are arranged differently and painted in different colors than the permanent, registered plates (see former SU No. 1791205 Al. 1989 B60R 13/10).

Known temporary car number plate (see German Patent No. 2809692, 1979, B60R 13/10), where prominent letter and number indexes are located on a light metal plate surface. In order to distinguish a permanent license plate from a transit number, the latter is produced with different indices, numbers, and colors that determine the number's expiration date.

Known temporary transit plates have a short shelf life, expensive metal or plastic panels and high material and labor costs for their recycling.

The object of the invention is to reduce the production costs for the production of this brand while maintaining the good performance of the brand.

The stated purpose is achieved by the use of paper for the production of a plate having a light plate with dark alphanumeric indexes.

Marked plate paper is cardboard, for example waterproof cardboard, thickness 1.75 - 2.75 mm, density 0.9 -0.96 g / cnA

The markings on the plate may be raised or flat. Flat indices are printed on the board by typography or photo.

To improve the contrast of the mark, the base of the cardboard is white.

In order to improve the readability of the mark, the surface of the cardboard panel is fully or partially activated by a reflective coating or film.

FIG. schematically illustrates one embodiment of a cardboard license plate, wherein the 1-digit license plate is made of a special waterproof VO-1 cardboard manufactured in accordance with GOST 6659-83, 2- curved edges, 3- curved indexes, 4- curved letter indexes, 5 - a reflective film activated surface of the mark.

The number plate may also include flat indexes of letters and numbers printed on the plate either by typography or by photo.

Paper (e.g. cardboard) license plates are manufactured according to known technology for the production of metal signs, i.e. stamping the raised indexes and painting the board base and indexes in different colors, or using colored base paper.

Signs for temporary use, which are used for a limited time but according to current norms, must meet the technical requirements guaranteeing their lifetime, i.e. shall be resistant to water, bending, stretching. In the proposed solution, waterproof cardboard grades VO-1, VO-2, or VP made in accordance with GOST 6659-83, which meet these requirements and are a good substitute for expensive metal and plastic raw materials, are used for branding. The cost of a cardboard brand is 2.5 times lower than that of a metal one. The marks offered are cheap and are destroyed after use.

The relationship between the technical characteristics of the license plate and its thickness and density is given in Table 1, the resolution of the plate being white and the reflective coating is given in Table 2.

The moisture absorption of the board is measured according to GOST 13648.5-78 after immersion of the board in water for 30 minutes.

Linear deformation in transverse direction after exposure for 2 hours.

In water at 20 ° C, measured according to GOST 12057-81.

Transverse linear deformation after drying at 100-105 ° C, measured according to GOST 1207-81.

ι

The average strength limit in two different directions is measured according to GOST 1325.1-79 and GOST 6659-83.

Contrast is measured by observing the subject during the dark hours of the day and illuminating it from a distance of 5 m according to a 10-point system.

The luminous power is measured during daylight hours, under normal light conditions, and during daylight hours, when the subject is illuminated with light flux.

The amount of light reflectance is determined by illuminating the sample with a standard light source with the illumination and observation angles in the same plane. The specimen rotation angle shall not exceed 80 '.

From the data in the tables it can be seen that the resolution and density of the label plate are within the optimum range. With a thickness of less than 1.75 mm and a density of less than 0.9 g / cm ³ , the board can be punctured to produce high-quality indexes, and is easily deformed by bending. Increasing the thickness of the board by more than 2.75 mm and the density by more than 0.96 g / cm ^{3 are} unreasonable due to increased material costs, harder stamping, and almost unchanged strength characteristics. Table 2 shows that the illumination power of an unpainted sign board is analogous to that of a prototype (lir 3) and, when white, with an activated reflective coating or film, increases as much as 3.5-fold (2, 5). Such a plate has a light reflectance of 95 · / ·, as do the metal plate-activated number plates (Ex. 5,6).

The proposed license plate meets the technical requirements for temporary license plates. This type of mark has a short life span and does not require the use of expensive materials. Compared to the prototype, the proposed license plate significantly reduces its cost and does not require significant labor costs to recycle these labels.

Claims (7)

DEFINITION OF INVENTION 1. Temporary vehicle number plate bearing a light plate with dark alphanumeric indices, other than a paper plate. 2. Provisional vehicle number plate according to Claim 1, characterized in that the paper is waterproof cardboard. 3. Temporary vehicle number plate according to Claim 2, characterized in that the thickness of the carton is 1.7-2.75 mm and the density is 0.9-0.96 g / crrA 4. Temporary vehicle number plate according to Claim 3, characterized in that the letters and numbers of the plate are indented or flat. 5. Temporary vehicle number plate according to Claim 4, characterized in that the flat index plate indices are typographical or photographic. 6. Temporary vehicle number plate according to Claim 5, characterized in that the base of the cardboard plate is white. 7. Temporary vehicle number plate according to Claim 6, characterized in that the surface of the plate is partially or permanently activated by a reflective coating or film.