Cushioning for the seat part and/or the backrest of a vehicle seat

US6224150A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Harun Eksin · Traunreut, DE
• Hermann Kohfink · Laichingen, DE
• Karl Pfahler · Stuttgart, DE
• Rolf Schwarz · Wildberg, DE

Key dates

• Filing date: Oct 14, 1999
• Grant date: May 1, 2001
• Expiry date: Oct 14, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60N2/5635
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A cushioning for the seat part and/or the backrest of a vehicle seat has a cushioning layer, a ventilation layer which is arranged above the cushioning layer and through which air can flow a cushioning cover which spans the cushioning surface and in which quilt seams for forming cushioning contours are made which penetrate the ventilation layer, and at least one electric fan for actively ventilating the cushioning which is accommodated in an air duct penetrating the cushioning layer. For the purpose of a constructively simplified design of the cushioning for lowering the manufacturing costs, the at least one air duct with the integrated fan is arranged in an area of a quilt seam such that the air flowing out of the air duct flows on both sides of the quilt seam into the ventilation layer. A low-cost vibration damping is achieved in that the fan is embedded in a rubberized-hair layer which is positioned in the ventilation-layer-side mouth area of the air duct in the cushioning layer.