DE8408467U1 - Wall hanging cards, in particular maps, and teaching and learning boards for schools - Google Patents

Description

DIPL-PHYS. HANS-J. NEW BUILDERS

EUROPEAN PATENTATTORNEY

Fauststrasse 30 Mr. D-8070 Ingolstadt

Heinrich boots

Telephone (08 41) 7 24 Fichtenstr . 9 Telegram neupat Ingolstadt

ολ-τι ^ j = Telex 5 5809 nepa d

8071 Ernsgaden ¹ ^

G 69ST 84/13

Wall hanging cards, in particular maps, and teaching and learning boards for schools

The innovation concerns wall hanging cards, in particular maps, as well as teaching and learning boards for schools according to the Preamble of claim 1.

Despite an abundance of modern teaching aids (audio-visual Facilities, slides, video, etc.) has the tried and tested wall hanging map, especially as a map and teaching and Learning board, in schools by no means lost its relevance. The reason for this lies essentially in the simple Handling, constant presence and the relatively low cost.

A wall hanging card for schools usually consists of the actual card or board of a rollable one Material that is provided with a continuous wooden stick on its upper and lower side. These wooden sticks are very useful devices that perform a number of punctures: Serve when suspended the rods as jigs, with the card along

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the rod is fixed in the tensioned state and the lower one The weight of the rod creates vertical tension. A hanging device can simply be attached to the upper wooden stick be attached. To store the card, it is rolled around one of the rods, creating a solid Inner core is created, which protects the card from damage, in particular from kinking. A card can can thus be stored as a roll to save space. Because of these advantages, the wall hanging card according to the innovation provided with such bars.

So far, wall hanging cards for schools are made from a range of materials:

In the simplest version, the cards are only printed on paper and with the two aforementioned wooden sticks Mistake. Such a card only has a short lifespan and is by no means suitable for the rough school operations grown. It tears very easily, especially on the wooden sticks, develops creases and becomes overall quickly unsightly and unusable due to dirt and wear and tear. Also for the permanent notice where If there is less wear and tear, these cards are only suitable for a short time, especially when exposed to sunlight the colors fade very quickly and the cards lose their visual memorability.

In order to achieve an improvement in contrast, it has long been known to use one-sided printing on school wall maps To apply paper cards to a linen carrier. This increases the mechanical strength increased, but the tear strength is still not sufficiently high. These also tear after repeated use Cards, especially along the wooden sticks, a what to relatively expensive card repairs. The adhesive connection between the linen carrier and the printed paper web is in some cases not firm enough to allow itself to

form unwanted tears and pieces of the paper web partially fall off the line carrier. Regarding fading The above statements also apply here, since here too the printed side of the paper web against the incidence of light, in particular UV radiation, is unprotected.

It is also known / the paper cards or the paper cards drawn up on linen on their front side with a to stick on transparent plastic protective film. Such protective films with adhesive film on one side (corresponding to the scotch tape) are for rollable cards due to the tension in the adhesive surfaces / when rolling up or in the rolled state and in the suspended state occur, only suitable to a limited extent, as the film often adheres to the corn replaces different surface areas. This leads to unsightly blistering, with some of these blisters cover the entire card tightly together. Through this the identification of the printed cards is made more difficult and, depending on the size of the bubbles, made impossible. Additionally is the application of the foils is quite laborious and expensive.

Cards are also offered that are printed directly on a plastic film material. These cards are very sensitive to kinking and tear easily in these areas and bleach with prolonged exposure to light very quickly. Due to the more complex process of plastic printing compared to paper printing and the more expensive one Such cards are relatively expensive anyway.

The task of the innovation, on the other hand, is to produce handheld cards, especially maps, as well as teaching and learning boards for To create schools with high tear resistance and high protection against fading and soiling have a long service life, are inexpensive and have good utility value for teachers and students.

This object is achieved in a generic wall hanging card according to claim 1 in that on one At least one-sided printed paper web on its front and back a cover layer made of transparent and flexible plastic is laminated.

According to claim 2, this cover layer should also enclose the narrow side of the paper card so that it is completely is included.

This achieves / that the tear strength is significantly increased. In normal, rough school operations no tearing of the cards, not even on the bars, can be observed, so that a card in accordance with the innovation only more can be destroyed by arbitrary damage (cutting, piercing with a pointed object, etc.) can. This practically eliminates expensive card repairs. It is essential that the lamination is also on the Back of the card. As a result, on the one hand, the tear strength is increased in the above manner, at the same time the back of the card is also protected against dirt and moisture. This allows no moisture or dirt stains or edges show through to the front, making the card unsightly and make it unusable. Furthermore, this prevents the paper layer from becoming detached from the front plastic layer be initiated.

Another advantage of lamination on both sides is that a paper web can be printed on both sides is e.g. B. could be a political map on the front and a physical map on the back of the same area must be printed. The map can then simply be turned around as required with both sides protected in the same way.

However, if the paper web is only printed on one side.

it is useful to white the reverse side of the paper web left. This means that a projection screen can be made available simply by turning the map over.

The printing inks are protected by the plastic coating, so that the cards are no longer exposed to direct sunlight fade and bleach.

The cards can be written on with both water-soluble and waterproof foil pens and can be easily written on washed off again with hater or alcohol. This allows a wall map of teachers in accordance with the innovation and pupils are included in the classroom as an active work tool, with the help of markings Foil pens details can be drawn in or highlighted.

Another advantage is the electrostatic adhesion of projector foils to the plastic layer the wall maps according to the innovation. This too can For example, contours can be easily removed and details can be transferred onto projector transparencies.

Using an exemplary embodiment, the innovation with further features, details and advantages is explained in more detail * purifies.

Show it
Fig. 1 is a wall hanging card,

FIG. 2 shows a section through the wall hanging card according to FIG. 1 along the line A-A, the thickness

is shown enlarged. 35

In Fig. 1, a wall hanging card 1 is shown, which consists of a printed card part 2 and one attached to it upper wooden stick 3 and a lower wooden stick 4.

The upper wooden stick 3 carries a suspension device 5 in

the shape of a hanging cord. j

In the shown unfurled and suspended state -

hangs the wall map 1 with the suspension device 5 | *

a nail 6, wherein the wooden rods 3, 4 the clamping

of the printed map part 2 cause. ^

Fig. 2 shows a section through the wall hanging card 1 '

along the line A-A (for the sake of clarity, the material thicknesses are shown enlarged). In the middle a paper web 7 can be seen, onto which a cover layer 8 and 9 is made on the front and back a transparent and flexible plastic is laminated.

The lamination takes place in such a way that hot and liquefied plastic is applied to both sides of the paper web. The paper web is then moved through opposing rollers that are spaced according to the desired material thickness including the laminated cover layers. This results in a uniform layer thickness and at the same time a smooth surface, while at the same time the plastic cools down, hardens and forms a permanent, permanent bond with the paper web. ^:

In Fig. 2 an embodiment is shown on the left edge, in which the paper web 7 is enclosed on its left narrow side by a plastic cover layer. On the right-hand side, an embodiment is shown in which only the cover layers 8, 9 are attached to the front and back of the paper web or what the material looks like after a subsequent cut on an edge.

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Overall it is found that with the innovation a Wall hanging map, in particular map, as well as teaching and learning board for schools was shown, which is an essential Improvement in terms of tear resistance, soiling, service life, value for money and of use value.

Claims (1)

dipl-phys.hans-j.neubauer EUROPEAN PATENT ATTORNEY Fauststrasse 30 D-8070 Ingolstadt Mr. Heinrich Stiefel Telephone (08 41) 7 2412 Telegram neupat Ingolstadt Fichtenstr. 9 Telex 5 5809 nepa d Ernsgaden G 69St 84/13 claims 1. Wall hanging cards, especially maps, as well as teaching and learning boards for schools with a paper web printed on at least one side and mounted on opposite sides of the paper web associated with the web and s _r l is provided approximately over the entire side length extending rods, of which a rod with a hanger, characterized, that on the paper web (7) on its front and back each have a cover layer (8, 9) made of transparent and flexible plastic is laminated.