Child Safety Seat with Rotatable Side Impact Protection Device

The problem

Child safety seats must manage lateral forces in a collision, which is why many models include fixed side-impact wings or blocks. Fixed guards increase the overall width of the seat, making it harder to fit three seats across a rear bench or to maneuver the seat through narrow vehicle doors. Removable guards solve the width issue but introduce loose parts that can be lost or installed incorrectly. Parents and fleet operators need a side-impact device that provides outward extension when required yet stays compact when the extra width is unnecessary, without relying on separate detachable pieces.

The solution

This patent describes a child safety seat where the side impact protection device is permanently attached but rotatable.

1. A seat portion forms the main body of the child safety seat.
2. A side impact piece is rotatably arranged on the side of the seat portion.
3. When rotated to the closed position, the side impact piece fits flush against the side of the seat portion, minimizing width.
4. When rotated to the open position, the side impact piece extends toward the outer side of the seat, creating a buffer zone.
5. A locking mechanism maintains the side impact piece securely in either the closed position or the open position.

Who it is for

• Child safety seat brands looking to offer a seat whose width adjusts for different vehicles without removable parts.
• Amazon sellers and wholesalers sourcing compact-packaging car seats that reduce shipping volume while retaining side-protection features.
• Rental car companies and ride-share fleets needing seats that fold narrow for trunk storage and swing open for passenger protection.
• Private-label baby product importers specifying mechanical details for their OEM manufacturing partners.

How it works

The main parts

Operating steps

1. To open the guard: The user slides the operating part along the chute on the side wall of the side impact piece. This pulls the locking rod out of the closed locking cavity, compressing the elastic member.
2. Swing the side impact piece outward away from the seat portion until it reaches the open position.
3. Release the operating part. The elastic member resets, driving the front end of the locking rod into the open locking cavity in the locking base. The guard is now locked outward.
4. To close the guard: Slide the operating part again to withdraw the rod from the open locking cavity.
5. Rotate the side impact piece inward until it fits flush against the seat side. Release the operating part so the elastic member pushes the rod into the closed locking cavity. In this state, the end of the locking rod is restricted by the end face of the positioning chamber and cannot rotate.

Applications

Narrow vehicle cabins

When installing a child seat in a compact car or fitting multiple seats across a rear bench, the side impact piece is folded into the closed position. This reduces the overall width, allowing the seat to clear door frames and adjacent passengers. Once installed, the guard is swung to the open position for travel.

Warehouse storage and shipping

Wholesalers and Amazon sellers benefit from the closed position during logistics. Folding the guards flat allows more units per pallet or carton, reducing dimensional weight charges without detaching any components.

Rental fleets and ride-share vehicles

Fleet operators store folded seats in trunks between trips. The integrated locking mechanism means staff do not handle loose side-impact attachments, and the guard deploys quickly when placing the seat in a vehicle.

Everyday parent use

Parents moving the seat between two cars of different widths adjust the guard without tools. The operating part slides along the chute, and the elastic member snaps the rod into the correct cavity, providing tactile confirmation that the guard is locked.

Where it is less suitable

• Seats requiring energy-absorbing foam inserts inside the guard - the patent describes the mechanical rotation and lock, not specific foam materials or crush zones; those are set in design / confirmed on prototypes.
• Infant carriers that click into a base - the drawings show a larger seat portion; dimensions and carrier compatibility are to be confirmed in design.