Vehicle seat suspension mat

摘要

A vehicle seat suspension mat (12) comprises suspension springs (14) for supporting a seat cushion (16) and a pressure sensor module (18) arranged on the springs for being applied against a bottom surface of the seat cushion. The pressure sensor module produces an electrical signal responsive to pressure acting on it. The pressure sensor module comprises a base plate (20) and a film-type pressure sensor (22) arranged on the base plate. The pressure sensor includes a pressure-sensitive cell (36). The base plate comprises a frame (26) and an actuator (28) that is linked to the frame in such a way that it is capable of movement relative to the frame. The actuator is arranged against the pressure-sensitive cell of the film-type pressure sensor and comprises a fixation element (48) fixing the base plate to the springs. The fixation element provides a spacing between the base plate and the springs.

主权项

1. A vehicle seat suspension mat, comprising
one or more suspension springs for supporting a seat cushion, and a pressure sensor module arranged on said one or more suspension springs for being applied against a bottom surface of said seat cushion, said pressure sensor module being configured for producing an electrical signal responsive to pressure acting on said pressure sensor module; wherein said pressure sensor module comprises a base plate and a film-type pressure sensor arranged on said base plate, said film-type pressure sensor including a pressure-sensitive cell; wherein said base plate comprises a frame and an actuator, said actuator being linked to said frame in such a way that said actuator is capable of movement relative to said frame; wherein said actuator is arranged against said pressure-sensitive cell of said film-type pressure sensor; and wherein said actuator comprises a fixation element fixing said base plate to said one or more suspension springs, said fixation element spacing said base plate from said one or more suspension springs.