DE1994360U - PLASTIC TUBE. - Google Patents

Description

Building pattern registration * "' ^ ° ^£ ^ U-0.00

Dr. Hans Joachim Kriwat,

Hans Kriwat, ■

Gertrud Kriwat, Braunschweig, Berliner Str * 62

Plastic tubes

I. Description

The use of tin tubes has the disadvantage that after a short period of use the tube looks unsightly due to irregular pressure points, kinks and squashed bumps on the edges. The more its contents are used up, the more the tube looks the more crushed. Also can be inadvertently too much forced out content, if it is still connected to the rest of the content, not back into the tube zurückfülleno A so-called "tube key ₅ with the aid of the tube from below - like the lid of a fish = konservendose - after gradually consumption piecewise rolled allows the tube to be rolled up relatively cleanly, but does not prevent unsightly bumps and pressure points in the middle part of the tube after partial use, since the contents are still conveyed out by exerting pressure on the tube and the lower sections can be rolled up with the help of the Key makes only the pressed end of the tube disappear,

On the other hand, plastic tubes always retain their externally attractive shape, as they always spring back into their previous smooth shape after the application of pressure due to their elasticity. Too much content that has been squeezed out, if still connected to the rest of the filling, can also be pulled back inwards by creating a slight negative pressure in the tube by carefully stretching the side surfaces of the tube. The decisive disadvantage of plastic tubes, however, is that they retain their original size because they cannot be rolled up. As a result, the increased admixture of air exposes their opened contents to too large a surface area, with the result that the remaining contents gradually dry out or undergo a chemical change is exposed, "for these reasons, plastic tubes for medical ointments and various cosmetics previously _r can particularly not find any use for the most common tubes goods: toothpaste and shaving cream.

Claims (1)

The special aim of the pattern is therefore to combine the advantages of the tried and tested tin tubes used worldwide with those of modern plastic tubes while avoiding their respective disadvantages _o To achieve this, a plastic tube with a tin tube running lengthways inside the tube is used. or other thin metal strips _a Instead of the metal strip, a plastic strip with embedded wires in a parallel or mesh-like arrangement can be used »The metal strip should also be covered with plastic to prevent a chemical reaction with the tube contents» By combining the plastic tube and the inserted On the one hand, the tube retains its original smooth shape without forming unsightly marks and creases ll products and unlimited application possibilities in all sizes _o The production costs are only marginally increased by the inserted strip, costs for additional aids such as tube keys are omitted The diagram shows a plastic tube with an inserted strip a. IIο right to protection ■ ■ '. ■ ■ Plastic tube, characterized in that it is provided with a tin strips running lengthways inside the tube, sheet metal strips covered with plastic, plastic strips is connected with embedded wires or the like, so that they look like a tin tube increasing consumption can be wound from bottom to top without forming pressure points. , ","., " Buriie. ms αθιοΠΙ / on e © f won- , «Aofiv» w. ^ «Usual * f ^