Vent window

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Opening window of an Opel Kadett B
Opening front windows of a VW T 1
Quarter turn of the triangular window on the VW Beetle
Borgward Isabella : hand wheel to open and close the triangular window

A vent window is a window, usually that of an automobile, that can be tilted outwards, i.e. not lowered into the door to open or pushed backwards. The term triangular window is also used to denote the opening windows in the front doors because of the predominant shape . There are pivot or pivot windows, which are generally mounted approximately in the middle in an upper and lower pivot joint and are moved in such a way that the rear part pivots outwards and the front part pivots inwards, so that drafts are largely avoided.

The manufacturers developed various (mostly manual) systems for opening and closing the small windows. They were usually opened or locked with a quarter turn ; In higher-quality models, it was a continuously adjustable handwheel on the door panel that acted on the axis of the window frame via an angle joint. In some US vehicles of the 1960s and 1970s, the triangular window was electrically operated, for example in the Lincoln Town Car from 1975.

In many two-door vehicles, the rear side windows were designed as vent windows. A first patent for so-called "ventilation windows" of motor vehicles was registered in 1945 for Harold King from Birmingham. Before the Second World War, there were models with a hinged windshield and the VW T 1 bus was later equipped with a split windshield that could be opened.

While historical vehicles were often equipped with vent windows until around the 1980s, today they are mostly only found in small cars. The function of the vent window, a draft-free ventilation while driving, has been replaced by the air conditioning . The vent window was a hindrance in the development of smooth, aerodynamically optimized bodies and to reduce wind noise, as the additional window element required its own frame and hinges, some of which were placed outside in the wind. In addition, thieves could open the front pivoting windows relatively easily with a screwdriver and then unlock the car door.

Individual evidence

  1. ^ Exhibition window in the Duden
  2. ↑ Frank Mundos: Yesteryear's Luxury . In: Chrom und Flammen, PubliKom Z Verlagsgesellschaft für Zielgruppen-Publizistik und Kommunikation mbH, edition 11/2011, p. 36. PDF accessed on November 7, 2014
  3. ↑ U.S. Patent 2390260
  4. ↑ dpa: triangular window - for more fresh air in the interior ( memento of the original from April 19, 2017 in the Internet Archive ) Info: The @1@ 2Template: Webachiv / IABot / www.ruhrnachrichten.de archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. . In: RuhrNachrichten of February 13, 2007, accessed on November 7, 2014
  5. ↑ Focus Online: Fresh air to fold: vent window
  6. ↑ Oldtimer-Veranstaltung.de: Where is the triangular window? Retrieved April 17, 2017.