摘要:
A seat testing punch is provided with an upholstered pressure element that can be used as a suitable aid in comfort comparison testing of different test seats to be performed according to strict test criteria, with which seat testing punch various test seats can be loaded in a realistic and reproducible manner as often or for as long as desired. For this purpose, the shape of the pressure element is made to simulate the pelvis and thighs, including the hip joints, of a human skeleton, at least as regards the underside. The upholstery of the pressure element likewise simulates anthropomorphically the soft parts in the area of the buttocks in terms of local distribution of thickness and softness. In particular, the two sitting pressure points of human buttocks and their immediate environment are simulated as naturally as possible in terms of shape, position, hardness, and local hardness distribution.
摘要:
An installation for the actuation of several controllable elements with modulated pressures, whereby the elements are constructed in particular as air chambers accommodated in the upholstery of a motor vehicle seat; the installation consists of only one pressure modulator and of a distribution device series-connected therewith; the pressure modulator is adapted to be selectively connected with one or several of the controllable elements by way of this distribution device.