Vehicle seat with a turning device
View Patent ↗A vehicle seat ( 1 ) has a turning device ( 10 ), including a base part ( 14 ), a seat part support ( 16 ) rotatable relative to the base part about an axis of rotation ( 12 ) and at least one catching device ( 20 ), preventing the seat part support ( 16 ) from being ripped out of the base part ( 14 ) in the event of a crash, including an insertion element ( 24 ) and a receiving element ( 26 ) into which the insertion element ( 24 ) can be inserted. The receiving element ( 26 ) has at least one spring element ( 40 ) which undergoes a deformation by contact with the inserted insertion element ( 24 ). The spring element ( 40 ) is designed such that, when the insertion element ( 24 ) is inserted, a spring resistance is approximately the same as when the insertion element ( 24 ) is not inserted. The spring resistance of the spring element increases upon a further deformation by the insertion element ( 24 ).
1. A vehicle seat comprising a turning device comprising:
a base component;
a seat part carrier, which is rotatable relative to the base component about an axis of rotation; and
at least one catching unit to prevent the seat part carrier from being torn apart from the base component in an event of a crash, wherein the at least one catching unit comprises an insertion element and a receiving element, into which the insertion element can be inserted, and the receiving element comprises at least one spring element, which undergoes a deformation through contact with the inserted insertion element, wherein the spring element has a spring rigidity that is approximately the same when the insertion element is inserted and when the insertion element is not inserted, and the spring rigidity of the spring element increases upon a further deformation by the insertion element.
2. The vehicle seat as claimed in claim 1 , wherein the spring element comprises a central bending area in a form of a circular segment of approximately constant radius.
3. The vehicle seat as claimed in claim 2 , wherein an arm area, which approximately extends in a straight line, when the insertion element is not inserted, adjoins the bending area on each side.
4. The vehicle seat as claimed in claim 3 , wherein a hook area, which serves for fixing the spring element to the receiving element and which is designed with a U-shaped cross section, adjoins each arm area.
5. The vehicle seat as claimed in claim 4 , wherein the receiving element has a U-shaped cross section with an upper arm, a lower arm and a base arm, wherein one spring element each is provided on the upper arm and on the lower arm.
6. The vehicle seat as claimed in claim 5 , wherein the hook areas each bear, with a bearing portion, on the respective arm.
7. The vehicle seat as claimed in claim 5 , wherein the spring elements are situated largely in a space which is enclosed by the upper arm, the base arm and the lower arm.
8. The vehicle seat as claimed in claim 5 , wherein the bending areas of the spring elements face one another and accommodate the inserted insertion element between them.
9. The vehicle seat as claimed in claim 5 , wherein the bending areas of the spring elements are forced apart by the inserted insertion element and onto the arms.
10. The vehicle seat as claimed in claim 5 , wherein the arm areas extend away from the arm at an angle of 10° to 20° when the insertion element is not inserted.