DE2514852A1 - Frost warning road sign - with slatted design and temp controlled shift for alternate display of warning or clear - Google Patents

Abstract

The traffic sign for frost warning automatically displays a frost warning and cancels the display on the incidence of a thaw. The sign is built up of strips in two parts (1), (2) of different thermal expansion which move relatively to each other on temperature change, and their relative motion is transmitted by links (3) (4) to shafts (5) which in turn shift levers (11). The signboard is built up of slats which are so shifted by the levers (11) that in temperatures from zero degrees downwards the frost warning id displayed, and at temperatures above 1 deg. a clear sign. A zero adjustment control is provided for the initial installation of the sign.

Description

25H852

Hans Beutenmüller 756 Gaggenau, the 5 < > 4o1975

Eckerstrasse 79

Double-sided self-rotating frost warning sign

There are known and customary traffic signs that warn of slippery weather or point out special danger spots that are slippery when wet and particularly at risk of slippery ice when frost occurs, ZoB ₀ so-called shadow curves in forest broadcasts or overpasses ₀

What all these signs have in common is that you can see them at the beginning of the winter season sets up and removed again in the spring, respectively. replaces the additional label for the warning label.

The main disadvantage of these conventional signs:

The viewer perceives the sign, but still knows why not whether there is actually frost or not «After all, a sign is also a habitual image.

Only when it changes to a factual statement does it attract sustained attention _{or similar}

However, every driver knows how important such a notice is, because with the distance traveled also changes the weather zone.

In addition, the temperatures change, especially in the winter months especially strong between day and night.

The present invention shows a novelty here in that the Image of the warning sign with the onset of frost changes by itself and with the heating above the zero point automatically returns to its starting position going back.

Complex drive mechanism and energy supply is in the present Invention superfluous.

- 2 Hans Beatenmüller. Double-sided self-rotating frost warning sign.

In the present invention, the drive is also the control mechanism and draws its power from the thermal expansion of a solid material such as polyethylene.

Among the cutting materials, plastic has a special position because of its high thermal linear expansion; an _o And of all plastics, polyethylene undoubtedly has the highest coefficient of linear expansion ₀

So are PE types with a thermal expansion of 230 * 10 "/ C and more on the market

If the PE rod is long enough, it cannot expand by bending it When the rod is lost, the energy of the linear Make full use of dimensional changes due to temperature changes. The present invention © is based on this

The traffic signs and their corresponding additional signs have in usually a width of 80 cm.

If 4 PE rods of 75 cm are accommodated in it, the result is a length of 300 cm or a dimensional change of 0.69 mm / ° G with an assumed coefficient of longitudinal expansion of 230 ^β 10 "" / ⁰ G ₀

The object is inventively achieved as follows and shown in representations:

The four PE rods 1, each 75 cm long, are combined in pairs in an expansion plate 2, to form a right expansion pair Pig 2 and a left expansion pair fig 3

The S-shaped expansion sheet 2, Pig 8 in elevation, is longitudinally A gap open at the top and bottom, tightly wrapped around the PE rods 1, with it the rods 1 cannot bend, but at the same time the expansion sheet 2 bears the cubic expansion of the PE rods 1 » The expansion sheet 2 should be so long that each PE rod 1 does not protrude more than 1 cm on the right or left.

The right expansion sheet 2, from Pig 2, is closed to one half at each end, 2a on the left, 2b on the right, _{or the like}

25U852

Hans Beutenmüller, double-sided self-rotating frost warning sign.

At each such end part of the right expansion plate 2, one of the PE rods 1, left 2a, right 2b _{or the like, ends firmly}

The rear PE rod 1 protrudes right 1a from the expansion plate 2 and is there with the shield wall 1a firmly connected. The front PE rod 1 protrudes from the expansion plate 2 on the left 1b and is there with the tab 3 firmly connected

The two PE-bars 1 of the right stretch sheet 2 Pig 2 are thus thermal to an expansion unit of I50 cm length become Each dimensional change of a PE-rod 1 is transmitted via the expansion sheet 2 at the same time to the second PE rod _c

The tab 3 is exposed on the expansion sheet 2, Pig 2, and carries the expansion transmitter 4 on the right, with a movable one attached to it Wave 5.

The expansion transducer 4 takes over the thermal dimensional change of both PE rods 1.

The left stretch pair, from Pig 3 »corresponds exactly to the right stretch pair, from Pig 2, but is rotated in mirror image o Doh., The connection of its PE rods 1 with the shield wall 1a is on the left, the one with the tab 3 now on the right 1b.

The two converging pairs of expansion, Pig 2 and Pig 3 "are a total of ^ an expansion unit of 300 cm or give a movement of 0.69 mm / ° C with an assumed coefficient of linear expansion of 23Ο · 10 ~ ⁶ / ° C"

At zero degrees, the two movable shafts 5 must be exactly exactly opposite «, Doh., their connection, the connecting lever 11, must form a right angle to both expansion pairs at zero degrees In order to achieve this and possibly also “dimensional deviations due to post shrinkage To compensate for the tempered PE rods, the adjustment hood, Pig 1, is used when installing the Prost warning sign

The adjustment hood, Pig 1, is used exclusively to fix the zero point for the expansion pairs compared to the assembly temperature.

25U852

■ · 4 Hans Beutenmüller, double-sided self-rotating frost warning sign.

The adjustment hood, Pig 1, consists of an adjustment hood cover 6 the back is open, into which the graduated cap 7 opens on the right. The adjusting cap cover 6 and graduated cap 7 are through in the front wall the screw connection 10 connected to one another »The graduated cover 7 is open on the right and left and at the rear., It's so big that it's just about half a pair of stretches, the length after, with a PE rod 1 and mounted tab 3 fits. The adjustment hood ends on the left at the adjustment stop 8, at the top right at the adjustment zero point 8a "

On the top view of the graduated cap 7, the adjustment scale 9, from the right The end of the adjustment hood cover 6 is delimited *

The zero point inside the frost warning sign is the exact center of the clear shield dimension at the lower edge, where the expansion pairs come to lie,

For the Justierhaube, Figure 1, the zero point is identical with the zero point of the frost warning sign and is located on the right side of the Justiernullpunktes 8a when the Justierhaube, Figure 1 is ₉ slid over the Lashe 3 to the tab stop 3a and lies directly on adjustment stop 8 and the adjustment scale 9 is in the initial position »

The distance between the graduation marks of the adjustment scale 9 should, in the case of the above assumed coefficient of linear expansion, 1.5 ° 230 ο 10 "" and the pitch of the thread of the screw connection 10 accordingly accordingly be coordinated,

For assembly, the adjustment hood, FIG. 1, is attached up to the adjustment stop 8 the tab stop 3a pushed, the measured room temperature at the Adjustment scale 9 is set, with one degree of room temperature corresponding to one graduation of the adjustment scale 9, and then the expansion beam 4 firmly attached to the adjustment zero point 8a, lying flat on the bracket 3.

The same adjustment setting for the second stretching pair _{or similar}

The two expansion pairs are connected to each other on the shafts 5 by the connecting lever 11. Fig 4 _O

At the end of the connecting lever 11 is the circular minus sickle on the right and on the left the also circular plus sickle 13 «

25U852

ans Beutenmüller, double-sided self-rotating frost warning sign

sr Distance between the expansion pairs and the length of the connecting lever 11 determine its translation as a lever arm «

When the freezing point has been reached, the PE rods 1 have drawn together so far that the connecting lever 11 is exactly at right angles to the pairs and the minus crescent 12, at the right end of the connecting lever 11, has thrown the minus lock 14. the interconnected, minus Child elements 16 are connected, so that all the minus sign elements have facilitated temporarily rotated 16 to the negative lock 14 to the left ₀

"Ie circular minus sickle 12 is so long that in each Minustemperaur the circular minus sickle located 12 on the minus lock 14 so that iich the minus sign elements 16, by wind or vibration, not ^r on can move itself _o Pig 4 and Pig 5"

As soon as the temperature has reached -f1 ° C again, the PE-it rods have become 1 stretched so far that the circular plus sickle 13 is now the plus lock 15 folds to the right and thereby at the same time the plus shield elements 17 attached to it and connected to one another • Really turn.

The plus sickle 13 is so long that it is rich in every temperature range is above + 1 ° C on the plus lock 15 to an uncontrolled movement the plus shield elements 17, by wind or vibration, to / prevent. Fig 6 and Pig 7β

Frost warning sign as a traffic sign:

The minus shield elements 16 are right-angled triangular bars with unlike Legs, in which the long legs of the triangle from reaching of freezing point are the visible surface. The visible surface is in the minus phase with Prostsinnblid and warning text Mistake. Pig 5 and Pig 9.

The plus shield elements 17 are in the right-angled triangular bars iie short legs of the unequal triangle and from + 1 ° C upwards the Sealing surface.

Hans Beutenmüller, double-sided self-rotating frost warning sign.

The visible surface of the sign, in the plus phase, is therefore conspicuous grid-like and can also be texted as desired. Figures 7 and 10o

Frost warning sign as an additional sign to the traffic sign:

In the case of the additional shield, the shield elements, which are also self-rotating due to the influence of frost, are made of isosceles triangular bars, which in the minus phase show the frost symbol as a visible surface on the minus shield elements 16a and warning text «, FIG. 4 and FIG. 11 _β

After reaching -f-1 ° G, the additional label shows, by turning itself, the right sides of the shield elements from the isosceles triangular bars, which in the plus phase, on the plus sign elements 17a, are only provided with text as a visible surface. 6 and 12.

Bibliography:
DIN 52 328
DIN 77 22 E.

Werner Laeis, Introduction to the Materials Science of Plastics, Carl Hanser Verlag, Munich 1972; Pages 157 and 158.

Publication: Kunststoffe Hoechst Hostalen, 1972 edition “

Publication: BASF, Kunststoffe imprüfung; Material sheet 22H.1, May 1973.

Publication: BASF ,, Lupolen Properties, Technical Information, Dec »1969o

Claims (2)

25U852 Mans Beutenmüller, double-sided self-rotating i'rost warning sign, PATENT CLAIMS: 1.) The double-sided self-rotating Prost warning sign is characterized by that in S-shaped expansion plates (2) coupled together PE rods (1) as expansion pairs running against each other an expansion unit are combined, so that the thermal Linear expansion as a force and control mechanism for the automatic change of the visible surface of traffic signs and additional signs can be used under the influence of temperature «, The thermal movement of the PE rods (1), one of the expansion pairs passes the tab (3) to the expansion transducer $ 4) and the shaft (5) transmits the path to the connecting lever (11), which doubles the path, at the same time the thermal movement of the second stretching couple takes it from the opposite direction, At the end of the connecting lever (11) is the minus sickle (12) on the right, which, via the minus lock (H), turn the minus sign elements (16 and 16a) to the left in the minus phase, from 0 ° C, to get on the sign section to show a frost warning, the plus sickle (13) at the left end of the connecting lever (11) moves in the plus phase via 1 C, the plus lock (15) and the plus shield elements (17 and 17a) connected to it to the right to open to show the origin notice or text on the label cutout. The outer side of the adjustment zero point (8a) is the fixed zero point during the sign assembly, if at the same time the adjustment stop (8) is on the bracket stop (3a) and the adjustment scale (9) is in the starting position « Adjustment zero point (8a) can be changed to adapt to the assembly temperature, by turning the graduated cap (7) into the adjusting cap (6) via the screw connection (10). 2.) Device for generating movements by changing the temperature, according to claim 1, characterized in that in two S-shaped expansion plates (2) converging on each other, PE rods (1) 25H852 - 8 Hans Beutenmüller, double-sided self-rotating frost warning sign, are coupled in such a way that the thermal expansion of two pairs of PE rods is combined to form an expansion unit The expansion path of the expansion pairs is from opposite directions, via the tab (3) and expansion transmitter (4) » released the connecting lever (11), at the end of which is the minus sickle (12) on the right and the plus sickle (13) on the left. 3o) device for changing the visible surface of traffic signs or the associated additional signs, according to claim 1 and 2, characterized in that the section of the shield visible surface consists of rotatable triangular bars, one side of which, for the minus phase from freezing point, consists of minus sign elements (16 and 16a) and the other side of the shield visible surface is composed of plus shield elements (17 and 17a) for the plus phase from -f 1 ° C » The shield elements are interconnected and are ever after the influence of temperature through the minus sickle (12) or plus sickle (13) via the minus lock (14 ·) or plus lock (15) into the Plus or minus phase rotated and locked at the same time © 4) Device for fixing the zero point in relation to the assembly temperature, according to claim 1 and 2, characterized in that the outer side of the adjustment zero point (8a), during the shield assembly, the zero point is when the adjustment stop (8) is at the bracket stop (3a) and the adjustment scale (9) is in the starting position. Adjustment zero point (8a) can be changed to adapt to the assembly temperature, by turning the graduated cap (7) into the adjusting cap (6) via the screw connection (10). Gaggenau, April 5th, 1975