DE3809959A1 - Self-closing tube closure - Google Patents

Abstract

The invention relates to a self-closing tube closure for toothpaste, cream, food and the like, having a housing and four closure shells which are integrated in the housing and are under prestress.

Description

The invention relates to a self-closing Tube closure, for toothpaste, creams, food and the like with a case and four in it Enclosed and pre-stressed housing Sealing shells.

When using toothpastes, creams, life means and the like are precautions for this make that easy removal of the product is ensured and then the tube again is permanently and tightly sealed. In many In cases this happens simply because the tube is provided with a cap with an internal thread.

Before using the tube contents, this will Unscrewed cap from its thread, with which the Tube opening is released. After use should this cap to close the tube again be screwed to the tube contents before the end keep dry. That after using the Tube contents required to close the tube experience has shown that it is often overlooked the contents of the tube dry out. Also will often the usually small cap Read why the tube is no longer closed can be. Replacement closures are usually not available.

The invention is therefore based on the object specify a tube closure such that one on the one hand, an expensive screwing and unscrewing is required and on the other hand the tube after Use independently and just as safely again is closed.

Fig. 1 shows an application example of a self-closing tube closure.

The tube ( 1 ) shown with its head part ( 2 ) be made of the filled medium receiving tube body ( 2 ), the head plate ( 3 ) with external thread ( 4 ) and the mouth ( 5 ), which are used to remove the in the tube contained material can be opened and closed.

The tube mouth ( 5 ) is closed by the closure base body ( 6 ) with the closure shells ( 7-10 ). The closure base body is attached via the external thread ( 4 ) of the tube body and the internal thread ( 12 ) of the closure base body ( 6 ).

To remove the tube content is on the tube body ( 2 ) z. B. exerted pressure by the fingers, whereby the medium contained in the tube moves in the direction of the mouth ( 5 ) and the closure shells ( 7-10 ). The pressure exerted on the medium propagates up to the sealing shells ( 7-10 ) and at the same time presses the sealing shells outwards, so that an opening ( 11 ) is released at the upper end of the sealing shells ( 7-10 ). This opening ( 11 ) increases with increasing pressure on the tube body ( 2 ), whereby a larger amount of the tube content is released. When the pressure on the tube body ( 2 ) diminishes, the closure shells ( 7-10 ) close due to the inherent tension, so that the mouth ( 5 ) of the tube body ( 2 ) is then firmly and securely closed again.

Fig. 2 shows the closure body ( 6 ), wherein Fig. 3 is the bottom view and Fig. 4 is the plan view.

Around the opening ( 11 ), the closure shells ( 7- 10 ) are arranged at right angles. For better grip speed, the closure body ( 6 ) is provided with ribs ( 13 ).

Claims (4)

1. Self-closing tube closure for toothpaste, creams, food and the like with a housing and four integrated in the housing pre-stressed closure shells, characterized in that the closure base body ( 6 ) closure shells ( 7-10 ) are firmly assigned. 2. Self-closing tube closure to claim 1, characterized in that the closure shells ( 7-10 ) are cast under prestress. 3. Self-closing tube closure according to claim 1, characterized in that the closure base body ( 6 ) by means of an internal thread ( 12 ) is screwed onto the tube body ( 2 ). 4. Self-closing tube closure according to claim 1, characterized in that the closure base body ( 6 ) with handles ( 13 ) is provided.