Alert system for safety seat and safety seat

Patent metadata

Field	Value
Publication number	US-12479339-B2
Application number	US-202218686750-A
Country	US
Kind code	B2
Filing date	Sep 2, 2022
Priority date	Sep 2, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

A safety seat with an alert function includes a seat body, a seat belt, and a buckle assembly. The buckle assembly is installed on the seat body in a seesaw structure. The alert system includes a control module, and a position sensor and a buckle sensor which are electrically connected to the control module. The position sensor is on the buckle assembly. The buckle sensor is in a buckle component of the buckle assembly. When the control module determines that the position sensor is triggered and the seat belt is not buckled to the buckle component, the control module sends an alert signal to remind parents or drivers to engage the buckle component in time to ensure the safety of a child on the safety seat.

First claim

The invention claimed is:

1 . A safety seat, comprising:
a seat body having a seat portion and a seat back; a seat belt; a buckle assembly on the seat portion in a seesaw structure, the buckle assembly comprising:
a rotating shaft portion pivotally connected to the seat portion,
an actuating portion connected to the rotating shaft portion, the actuating portion having a free end that is not connected to the rotating shaft portion, wherein the free end of the actuating portion is higher than the rotating shaft portion and extends upward and in a direction toward the seat back;
a buckle portion connected to the rotating shaft portion, the buckle portion having a free end that is not connected to the rotating shaft portion, wherein the free end of the buckle portion is higher than the rotating shaft portion and extends upward and in a direction away from the seat back; and
a buckle component on the buckle portion; and
an alert system comprising:
a position sensor, disposed on the buckle assembly, the buckle assembly being rotated to trigger the position sensor when someone sits on the safety seat;
a buckle sensor, disposed in the buckle component to sense whether the seat belt is buckled to the buckle component; and
a control module, electrically connected to the buckle sensor and the position sensor, the control module sending a first alert signal when the control module determines that the position sensor is triggered and the seat belt is not buckled to the buckle component.

2 . The safety seat according to claim 1 , wherein the position sensor is a gyroscope.

3 . The safety seat according to claim 1 , wherein the position sensor is an accelerometer.

4 . The safety seat according to claim 1 , wherein the alert system further comprises an alert module electrically connected to the control module to process the first alert signal.

5 . The safety seat according to claim 4 , wherein the alert module comprises a light-emitting or sound-emitting component, and when the control module sends the first alert signal, the alert module emits a light or sound message.

6 . The safety seat according to claim 1 , wherein the alert system further comprises a communication module electrically connected to the control module and connected in communication with an external mobile device, and when the control module determines that the position sensor is triggered and a single intensity of the communication connection with the external mobile device decreases to a predetermined value, the control module sends the first alert signal.

7 . The safety seat according to claim 6 , wherein the communication module is further connected in communication with a vehicle control system, and when the control module determines that the position sensor is triggered and the single intensity of the communication connection with the mobile device decreases to a predetermined value, the control module sends a second alert signal to the vehicle control system so that a vehicle in which the safety seat is located sends warning message or alerts outward.

8 . The safety seat according to claim 1 , wherein the rotating shaft portion is pivotally connected to the seat portion through a rotating shaft or a pin.

9 . The safety seat according to claim 1 , wherein the position sensor is disposed on one of the buckle portion, the rotating shaft portion, and the actuating portion.

Assignees

• Wonderland Switzerland Ag

Inventors

• Cheng Manqun

Classifications

• B60R21/01546

  using belt buckle sensors · CPC title

• B60N2/2816

  with additional belt accessories, e.g. belt tension detectors · CPC title

• B60N2/2812 Primary

  for securing the child to the child seat · CPC title

• B60N2/272 Primary

  Buckle lock sensors for child seat safety belts · CPC title

• B60R21/01516

  using force or pressure sensing means · CPC title