Seat testing body for vibration measurements on seats

US6116102A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Eberhard Faust · Stuttgart, DE
• Karl Pfahler · Stuttgart, DE
• Gunter Stellmach · Bad Dürrheim, DE

Key dates

• Filing date: Feb 24, 1999
• Grant date: Sep 12, 2000
• Expiry date: Feb 24, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M99/001
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A seat testing body measures vibration on seats. The body has simulated buttocks, which point downwards in the testing position and can be placed on a seat cushion of a seat to be tested, and a simulated back which is connected therewith and in the testing position can be placed against the backrest cushion of a seat to be tested. The seat testing body, with respect to its underside shape and the softness to this extent, with respect to its weight and the resulting sitting pressure distribution, corresponds approximately to the respective criteria of a person of an average weight. In order to realistically simulate with such a seat testing body the vibration action of human beings independently of the seat construction and the seat position, particularly to be able to quantitatively correctly reflect that reality in the higher-frequency range, a three-dimensionally vibratory spring damper mass system is mounted on the seat testing body. At least one vibrating mass is surrounded by a spring damper medium such that it can vibrate in all three directions in space.