Vehicle seat having a tuned mass damper
View Patent ↗A vehicle seat has a tuned mass damper, wherein the vehicle seat has a seat bottom element, which is or can be connected to a vehicle structure, and a seat back that can be tilted on the seat bottom element about a backrest tilt axis. The seat back has a tuned mass damper that is coupled to a backrest structure of the seat back and integrated into the seat back, wherein the tuned mass damper has at least one retaining element that is connected to the backrest structure of the seat back, is elastic at least in some regions and has a first coupler that can be coupled to a second coupler provided on a damper mass element, wherein the first coupler and the second coupler form a multi-stage coupling assembly, by which the distance between the backrest tilt axis and the damper mass element can be varied.
1 . A vehicle seat, comprising:
a seat base which is connectable to a vehicle structure;
a backrest which is inclinable on the seat base about a backrest inclination axis; and
a vibration absorber which is coupled to a backrest structure of the backrest and is integrated in the backrest, wherein
the vibration absorber has at least one holding element which is connected to the backrest structure of the backrest and is elastic at least in regions,
the holding element has a first coupler which is couplable to second coupler provided on an absorber mass element, and
the first coupler and the second coupler form a multi-stage coupling arrangement by which a distance between the backrest inclination axis and the absorber mass element is variable.
2 . The vehicle seat according to claim 1 , wherein
the first coupler or the second coupler compare at least one engagement element with a shaft portion and with at least one arm portion protruding laterally therefrom, and
the second coupler or the first coupler comprise at least one receiving groove for the respective engagement element, the receiving groove having a central groove channel for receiving the shaft portion, at least one first lateral groove channel extending to a side therefrom, and at least one second lateral groove channel extending to a side therefrom,
the first lateral groove channel and the second lateral groove channel are spaced apart from each other in a depth direction of the central groove channel such that the first and second lateral groove channels are configured for alternatively receiving the at least one arm portion of the engagement element.
3 . The vehicle seat according to claim 2 , wherein
the engagement element is T-shaped in cross section.
4 . The vehicle seat according to claim 1 , wherein
the absorber mass element, in a state coupled to the holding element, with the exception of the first and second couplers, is freely mounted spaced apart on all sides from the holding element and from the backrest structure.
5 . A vehicle comprising at least one vehicle seat according to claim 1 .