| 主权项 |
1. A Child Restraint System attached to a vehicle seat, comprising a first part attached to a shell adjoining and secured to the child and a second part attached to the vehicle, further comprising a plurality of attachments between the first part and the second part, wherein at least one of said attachments is at the bottom of the shell which supports the shell and one of said attachments is at the rear of the shell relative to the facing direction of the child and said attachment at the rear of the shell comprises a force tunable mechanism comprising a plurality of shock absorbing elements to tune the force between its ends wherein the end attached to the first part moves in the same direction as the first part to reduce head acceleration, wherein said force tunable mechanism is enabled for adjustment by a user via a user interface to engage one or more of the plurality of shock-absorbing elements and therefore adapted to enable regulation a-priori, the force displacement characteristics of the first part relative to the second part during impact, thereby protecting the child under impact conditions. |
