Takata Petri Ag

Petri Ag

Harald Burdack

Manfred Zerbe

Helmut Bonn

A steering wheel for motor vehicle that includes at least one switching device for actuating an electric functional group such as, for example, a vehicle horn. The switching device includes two electric contact elements that can be moved in relation to one another and can be brought into contact with one another for actuating the functional group. According to the invention, one of the contact elements is mounted in a springy manner and so that one of the contact elements glides along the other element after the two contact elements have been brought into contact with one another for actuating the electric functional group.

Steering wheel having a switching device for actuating an electrical functional group of a motor vehicle

A platelet, that is fixed on a base plate, has particularly narrow three-dimensional sections and is chiefly intended to be used as a cover cap for driver air bag modules. The platelet exhibits at least one protrusion on its back side. The protrusion serves as an indicator for the power direction in which to solder the platelet to the base plate. The configuration of the platelet provides the advantage that even filigree platelets with enhanced three-dimensional effects can be soldered securely on the base plate, thus avoiding overheating of and damage to the platelet. The secure connection ensures that the platelet does not come off from the cover cap of an air bag in case of a crash and hit the occupant.

Platelet fixed on a base plate

An airbag module cover an airbag module housing. The cover has two electrically conducting foils which are spaced apart opposite each other between a front panel and a back panel. The distance between the foils is guaranteed by nonconducting spacers which are disposed between the foils. A stop member is connected to the back panel. A gas diffuser is disposed inside the airbag module housing. A space is defined between the diffuser and the stop member. A layer of a folded airbag penetrates the space. When pressed, the cover deflects causing the stop member to travel through the space contacting the folded airbag and stopping against the diffuser. A resulting pressure causes the foils to make contact and activate the horn.

Growing community of inventors

Haibach, Germany

Harald Burdack