Air trunk

An air trunk

Using air trunks at a birthday party

A blowouts (also: Blasrolle , Rolltröte or rolling pipe ) or blowouts-Tröte ; Occasionally the funfair whistle is an effect or noise instrument , which is called a singing drum . Air trunks are used as children's toys , joke articles and in speech therapy .

The trumpet consists of a tube-like, conical mouthpiece, which is usually made of plastic and resembles a trumpet . There is a membrane in the mouthpiece . On the mouthpiece at the end is a sealed tube with an internal, very thin steel strip - coil spring mounted. The hose is usually made of paper that is monochrome, colored or printed with a colored pattern.

Due to the air pressure that is created when blowing into the mouthpiece, the hose fills with air and unrolls against the spring force straight away from the mouthpiece. At the same time, the air flowing past the membrane creates a sound, the volume of which varies due to the force with which the mouthpiece is blown. The spiral spring causes the hose to roll up again automatically as soon as it is no longer blown into it and the air pressure drops again.

Air trunks are both popular and inexpensive children's toys, for example as small gifts for guests at children's birthdays and events for children, as well as joke items, such as for parties, at carnival and New Year's celebrations . In the past, they were also referred to as "Radauartikel" in the field of carnival articles.

In addition, air trunks are used for oral motor exercises in the field of speech therapy and promotion.

Audio sample

A single blow to an air trunk, followed by the sound of the paper trunk rolling up again ^{? / i}

Individual evidence

↑ Rollpfeife & Funfair whistle ( Memento from March 25, 2016 in the Internet Archive )
↑ ^a ^b See utility model DE 299 01 555 U 1 of the German Patent and Trademark Office ( PDF file; 158 kB; accessed on July 6, 2009).
↑ Cf. Christa Pieske / Konrad Vanja (eds.): The ABC of luxury paper. Manufacture, processing and use from 1860 to 1930 . Reimer, Berlin 1983 (Museum für Deutsche Volkskunde; Berlin-West; Schriften; Vol. 9), ISBN 3-88609-123-6 , pp. 155–156 ( excerpts available online from Google Book Search ; accessed on July 6, 2009 ).
↑ Cf. Welcome to the homepage of the Language and Communication Department ( Memento from October 17, 2014 in the Internet Archive ) at the University of Dortmund , p. 25 (*. * Doc document; accessed on July 6, 2009).

Web links

Commons : Air Trunk - collection of images, videos and audio files

[1] Rollpfeife & Funfair whistle ( Memento from March 25, 2016 in the Internet Archive )

[patent-2] See utility model DE 299 01 555 U 1 of the German Patent and Trademark Office ( PDF file; 158 kB; accessed on July 6, 2009).

[3] Cf. Christa Pieske / Konrad Vanja (eds.): The ABC of luxury paper. Manufacture, processing and use from 1860 to 1930 . Reimer, Berlin 1983 (Museum für Deutsche Volkskunde; Berlin-West; Schriften; Vol. 9), ISBN 3-88609-123-6 , pp. 155–156 ( excerpts available online from Google Book Search ; accessed on July 6, 2009 ).

[4] Cf. Welcome to the homepage of the Language and Communication Department ( Memento from October 17, 2014 in the Internet Archive ) at the University of Dortmund , p. 25 (*. * Doc document; accessed on July 6, 2009).