Child safety seat and safety belt limiting device

US12503017B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12503017-B2
Application numberUS-202318166703-A
CountryUS
Kind codeB2
Filing dateFeb 9, 2023
Priority dateFeb 11, 2022
Publication dateDec 23, 2025
Grant dateDec 23, 2025

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A child safety seat and a safety belt limiting device are disclosed. The child safety seat includes a safety belt limiting device and a seat body. The safety belt limiting device is configured to be attached to the seat body, the safety belt limiting device includes a first engagement portion, and the safety belt limiting device is adapted to detachably engage with a shoulder belt portion of a vehicle-mounted safety belt through the first engagement portion, so as to apply downward traction to the shoulder belt portion.

First claim

Opening claim text (preview).

What is claimed is: 1 . A child safety seat, comprising: a seat body; and a safety belt limiting device configured to be attached to the seat body, wherein the safety belt limiting device includes a first engagement portion, and the safety belt limiting device is adapted to detachably engage with a shoulder belt portion of a vehicle-mounted safety belt through the first engagement portion, so as to apply downward traction to the shoulder belt portion, wherein the safety belt limiting device includes a traction belt connected to the first engagement portion, the traction belt being provided with a second engagement portion, wherein the seat body is provided with a connecting member configured to be detachably connected to the second engagement portion, and wherein the seat body is provided with a storage bag configured to store, when the connecting member is separated from the second engagement portion, the connecting member, so that the connecting member is hidden in the storage bag. 2 . The child safety seat of claim 1 , wherein the first engagement portion is a hung clasp or an annular sleeve. 3 . The child safety seat of claim 1 , wherein the connecting member is arranged on a side portion of the seat body and the seat body includes a seat portion and a backrest portion and wherein the side portion of the seat body includes a side portion of the seat portion and a side portion of the backrest portion. 4 . The child safety seat of claim 1 , wherein one of the second engagement portion and the connecting member is a male connector and the other of the second engagement portion and the connecting member is a female connector. 5 . The child safety seat of claim 1 , wherein two sides of the seat body are provided with the connecting member and the second engagement portion is selectively detachably connected to the connecting member on one of the two sides. 6 . The child safety seat of claim 1 , wherein when the safety belt limiting device is in use, the first engagement portion engages with the shoulder belt portion, and the traction belt is tensioned and wherein an upper angle is formed between an upper part of the shoulder belt portion of the vehicle-mounted safety belt and the traction belt, the upper angle ranging from 60° to 120°. 7 . The child safety seat of claim 1 , wherein the connecting member is mounted on a backrest portion of the seat body through a webbing. 8 . The child safety seat of claim 1 , wherein a length of the traction belt between the first engagement portion and the second engagement portion is adjustable. 9 . The child safety seat of claim 2 , wherein the first engagement portion is provided with a through hole, and a first end of the traction belt passes through the through hole and forms an annular structure. 10 . The child safety seat of claim 3 , wherein the connecting member is arranged at a bottom of the side portion of the backrest portion, or is arranged on an inner or outer side face of the side portion of the backrest portion. 11 . The child safety seat of claim 3 , wherein the connecting member is close to an opening of the side portion of the backrest portion for a waist belt portion of the vehicle-mounted safety belt to pass through. 12 . The child safety seat of claim 3 , wherein the connecting member is at a junction between the side portion of the seat portion and the side portion of the backrest portion. 13 . The child safety seat of claim 1 , wherein the storage bag is a cloth bag or an elastic sleeve connected to seat cloth of the seat body.

Assignees

Inventors

Classifications

  • Adaptations for use by small passengers, e.g. children (B60R22/20 takes precedence; using belt anti-slip devices B60R22/30) · CPC title

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

  • characterised by guiding means for children belts · CPC title

  • B60N2/265Primary

    Adaptations for seat belts · CPC title

  • B60N2/2806Primary

    for securing the child seat to the vehicle · CPC title

Patent family

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Frequently asked questions

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What does patent US12503017B2 cover?
A child safety seat and a safety belt limiting device are disclosed. The child safety seat includes a safety belt limiting device and a seat body. The safety belt limiting device is configured to be attached to the seat body, the safety belt limiting device includes a first engagement portion, and the safety belt limiting device is adapted to detachably engage with a shoulder belt portion of a …
Who is the assignee on this patent?
Wonderland Switzerland Ag
What technology area does this patent fall under?
Primary CPC classification B60N2/265. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Dec 23 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).