Patent ID: 11865953
Assignee: BAMBINO PREZIOSO SWITZERLAND AG
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A side impact protection mechanism provided at a backrest of a child safety seat, the side impact protection mechanism comprising:
a side impact protection block movably fitted to the backrest and having a folding position in which the side impact protection block is inwardly folded in the backrest and an unfolding position in which the side impact protection block is outwardly unfolded from the backrest;
a self-locking structure fitted to the side impact protection block or the backrest;
wherein the self-locking structure is configured to move to a position that blocks the side impact protection block in the unfolding position from switching to the folding position when the side impact protection block is switched from the folding position to the unfolding position;
wherein the backrest and the side impact protection block shields the self-locking structure to block a release operation of the self-locking structure by an operator;
wherein the self-locking structure comprises a self-locking member fitted to the backrest or the side impact protection block and being telescopically slidable, and a self-locking reset member providing a reset force for a telescopically slidable movement of the self-locking member, the self-locking reset member has a constant tendency to drive the self-locking member to slide in a extending direction to a position that blocks the side impact protection block in the unfolding position from switching to the folding position; and
wherein an end of the self-locking member positioned in front in the extending direction has an inclined surface inclined with respect to the extending direction of the self-locking member, the inclined surface of the self-locking member is positioned in front of the self-locking member in a pivotally unfolding direction of the side impact protection block, and the self-locking member is in a retracted state in which the self-locking reset member is elastically deformed when the side impact protection block is positioned in the folding position.