US Patent 7635163 Vibratory warning device and seat provided therewith

The invention relates to a vibratory warning device attachable to a structural element (2) such as a vehicle seat and including vibratory means (3,4,5) for generating mechanical vibration in response to a control signal, and attachment means (7,8,9) for securing the vibratory means (3,4,5) to a portion (6) of the structural element (2), characterized in that the attachment means comprise a resilient element (8) defining a gap (11) with an opening into which said portion (6) of the structural element (2) can be inserted in order to attach the device by clamping the resilient element (8) against said portion (6) of the structural element. The invention further relates to a seat provided with said device.