A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
A47C 27/08 (2006.01)
Patent
CA 2188265
The invention relates to a process for producing an air mattress consisting of a pump part and an inflatable part, whereby the pump part is provided with an expandable material, and the wall separating the pump part from the inflatable part is provided with a one-way outlet valve and a small aperture for the return flow of air from the inflatable part into the pump part, and whereby the pump part is provided with an inlet aperture and the inflatable part is provided with an outlet aperture. According to the invention, a metallic tool is used for welding the pump part wall between the upper and lower cover of the air mattress which forms part of a high-frequency welding machine provided with two plates abutting outside against the covers and which is removed from the air mattress after the edge is closed. A separable tool is used for arranging the pump part inside the air mattress.
Un procédé sert à produire un matelas gonflable constitué d'une partie pompe (2) et d'une partie à gonfler. La partie pompe (2) contient un matériau gonflant (6) et la paroi qui sépare la partie pompe de la partie à gonfler comprend une soupape de sortie unidirectionnelle (10a) et un petit orifice par lequel l'air peut refluer de la partie à gonfler dans la partie pompe (2). La partie pompe comprend un orifice d'admission et la partie à gonfler comprend un orifice de sortie. Afin de souder la paroi (4) de la partie pompe entre la peau supérieure (1a) et la peau inférieure (1b) de couverture du matelas gonflable, on utilise un outil métallique (12) qui forme une partie d'une machine à souder à haute fréquence avec deux plaques (29) qui reposent sur la face extérieure des peaux de couverture (1a, 1b). On enlève l'outil métallique avant de former la bordure du matelas gonflable. Un outil divisible est utilisé pour placer la partie pompe à l'intérieur du matelas gonflable.
Graf Josef
Macrae & Co.
LandOfFree
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