Device (1) for energy absorption in particular for an automotive vehicle seat (10) upon impact, said device comprising a first element(2) substantially in the form of a plate with a hole(12) and a second element (4) inserted in the hole (12), said first element(2) comprising a series of cutouts (14a to 14c) that are successive along a deformation direction (X) and define a series of yokes (16a to 16c) between each other extending along a direction of elongation (Y) transversal to the direction of deformation (X), said yokes (16a to 16c) having each a length (La, Lb, Lc) along the direction of elongation (X), said length (La, Lb, Lc) increases strictly from one yoke to the next according to the distance of the yokes(16a to 16c) in relation to the second element(4) and the yokes (16a to 16c) having an overall concavity turned towards the second element (4).

Device for energy absorption upon impact for automotive vehicle seat, seat and automotive vehicle comprising the device

The invention relates to a shock absorption device making it possible to tilt the back of a seat frontward in case of a shock greater than a predetermined value, the device including a plate and an absorbing shaft, the plate including a brake cavity and a hole through which the absorbing shaft passes, the hole and the brake cavity being separated by a bridge, and the dimensions of the bridge being such as to break when the stress exerted on the back is greater than a predetermined value. The invention also relates to a seat for a passenger vehicle and, more particularly, an aircraft, the pivotal rotation of which is provided with such a device.

Shock absorption device and seat including such a device

The invention relates to a vehicle seat, in particular motor vehicle seat, having a safety belt (3) which is integrated into the vehicle seat (1) and having a backrest (4) which has a backrest structure (6), a backrest cushion (12), a backrest lining (16) and a belt leadthrough (8), by means of which belt leadthrough (8) the safety belt (3) is guided from the front side of the backrest (4) in the direction of the rear side of the backrest (4), wherein the backrest cushion (12) and/or the backrest lining (16) have/has a cutout (12a, 16b) for access to the belt leadthrough (8), characterized in that the cutout (12a, 16b) is connected by means of a gap (12b, 16c) to the outer edge of the backrest cushion (12) or backrest lining (16), wherein in particular in order to exchange the backrest lining (16), the safety belt (3) can leave the cutout (12a, 16b) via the gap (12b, 16c).

Vehicle seat, in particular motor vehicle seat

The invention relates to an energy absorption device in particular for the seat of an automobile in case of a shock, said device being substantially in the form of a plate including a succession of cutouts following each other in a deformation direction (X) between a first cutout and a last cutout and defining between them at least one bridge extending in a stretching direction (Y) transverse to the deformation direction (X), the first cutout having a shape slightly flaring in the deformation (X) direction towards the following cutouts.

Energy absorption device for automobile seat, and assembly and set including said device

A device (2) for absorbing energy by deformation, in particular for a motor vehicle seat (10), in the event of an impact, the energy absorption device (2) comprising: a plate (20) of substantially constant thickness (e) comprising at least a first cutout (12) and a second cutout (14) which are separated by a bridge (16); and a rod (19) extending through the first cutout (14), wherein the bridge (16) comprises a collar (18) having, at least locally, a thickness (E) greater than the thickness (e) of the plate (20).

Reinforced energy absorption device and assembly

A fixture device is provided for the deformation component (12). The fixture device in the deformation component has an opening through which for fixture of the deformation component (12) in the vehicle seat (1) a fixture component is fitted. The opening for the fixture component for absorption of energy, particularly in the event of a collision from behind, is located in the upper part of the deformation component (12). The deformation area is a solid body of deformable material. It is surrounded by a reinforcing outer wall.

Larsson Haakan

Papers

Energy-absorbing device for vehicle seat