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EP-4737228-A2 - CHILD SAFETY SEAT, AND SUPPORTING ASSEMBLY THEREOF

EP4737228A2EP 4737228 A2EP4737228 A2EP 4737228A2EP-4737228-A2

Abstract

Disclosed are a child safety seat and a supporting assembly (100) of the child safety seat. The supporting assembly (100) of the child safety seat provided by the application includes: a base (1); a rebound bracket (2), including a pivotable arm (21), and a first crossbeam (22) disposed at an upper end of the pivotable arm (21), a lower end of the pivotable arm (21) being pivotally connected to the base (1); a locking mechanism (4), arranged on the base (1); a tensioning belt (3), a first end (31) of the tensioning belt (3) being connected to the base (1), a second end (32) of the tensioning belt (3) functioning as a pulling end, a middle portion of the tensioning belt (3) being configured to pass through the first crossbeam (22) and the locking mechanism (4). The second end (32) of the tensioning belt (3) is configured to pass through the first crossbeam (22) first, and then the locking mechanism (4), and the locking mechanism (4) is configured to lock the tensioning belt (3).

Inventors

  • ZENG, XIANGYONG
  • GUO, Zhengwen

Assignees

  • Bambino Prezioso Switzerland AG

Dates

Publication Date
20260506
Application Date
20220506

Claims (15)

  1. A supporting assembly (100) of a child safety seat, characterized by comprising: a base (1); a rebound bracket (2), comprising a pivotable arm (21), and a first crossbeam (22) disposed at an upper end of the pivotable arm (21), a lower end of the pivotable arm (21) being pivotally connected to the base (1); a locking mechanism (4), arranged on the base (1) or arranged on the first crossbeam (22); and a tensioning belt (3), a first end of the tensioning belt (3) being connected to the base (1), a second end (32) of the tensioning belt (3) functioning as a pulling end, wherein the second end (32) is a free end, a middle portion (30) of the tensioning belt (3) being configured to pass through the locking mechanism (4) and being slidably relatively connected to the first crossbeam (22); wherein, when the tensioning belt (3) is pulled, the tensioning belt (3) drives the rebound bracket (2) to pivot; and the locking mechanism (4) is configured to lock the tensioning belt (3).
  2. The supporting assembly (100) of the child safety seat according to claim 1, wherein the first crossbeam (22) comprises a guiding channel (201), and the middle portion (30) of the tensioning belt (3) is configured to pass through the guiding channel (201) and be wrapped around the first crossbeam (22); preferably, an accessory is arranged on the first crossbeam (22), and the guiding channel (201) is formed in the accessory or formed between the accessory and the first crossbeam (22).
  3. The supporting assembly (100) of the child safety seat according to claim 1 or 2, wherein, the locking mechanism (4) is disposed on a front end of the base (1), and the middle portion (30) of the tensioning belt (3) is configured to pass through the locking mechanism (4) through a bottom of the base (1).
  4. The supporting assembly (100) of the child safety seat according to claim 1, wherein the locking mechanism (4) is arranged on the first crossbeam (22), and the second end (32) of the tensioning belt (3) is configured to pass through a bottom of the base (1) and to extend towards a front of the base (1).
  5. The supporting assembly (100) of the child safety seat according to any one of the preceding claims, wherein, the locking mechanism (4) comprises a locking channel (402) and a locking member (41), the middle portion (30) of the tensioning belt (3) is configured to pass through the locking channel (402), and the locking member (41) is configured to press the tensioning belt (3) against a channel wall (4021) of the locking channel (402).
  6. The supporting assembly (100) of the child safety seat according to claim 5, wherein a first end of the locking member (41) comprises a cam, and a second end (412) of the locking member (41) is operable by a user via the shape feature of the cam, to enable the locking member (41) to pivot around the first pin shaft (43), thereby allowing the locking member (41) to be switched between the locking state and an unlocking state.
  7. The supporting assembly (100) of the child safety seat according to claim 5 or 6, wherein, when the second end (32) of the tensioning belt (3) is pulled to cause the tensioning belt (3) to be tensioned, and when the user operates the second end (412) of the locking member (41) to cause the locking member (41) to be switched to the locking state, the cam of the locking member (41) will press the tensioning belt (3) against the channel wall (4021) of the locking channel (402).
  8. The supporting assembly (100) of the child safety seat according to any one of claims 5-7, wherein, when the user operates the second end (412) of the locking member (41) to cause the locking member (41) to be switched to the unlocking state, the cam of the locking member (41) releases the tensioning belt (3) from being pressed, such that the tensioning belt (3) is not clamped between the cam of the locking member (41) and the channel wall (4021) of the locking channel (402).
  9. The supporting assembly (100) of the child safety seat according to any one of claims 5-8, wherein, a first protruding part is arranged on a surface of the locking member (41), which is in contact with the tensioning belt (3); and/or, a second protruding part is arranged on a surface of the channel wall (4021), which is in contact with the tensioning belt (3).
  10. The supporting assembly (100) of the child safety seat according to any one of claims 5-9, wherein: the locking mechanism (4) further comprises a mounting housing (42), and the locking channel (402) is formed in the mounting housing (42); and the locking member (41) is pivotally connected to the mounting housing (42) by a first pin shaft (43), a first end (411) of the locking member (41) is configured to press the tensioning belt (3) against the channel wall (4021) of the locking channel (402), a second end (412) of the locking member (41) is configured to bear a force to drive the locking member (41) to rotate around the first pin shaft (43), to release the tensioning belt (3) from being pressed by the first end (411) of the locking member (41).
  11. The supporting assembly (100) of the child safety seat according to claim 10, wherein the locking mechanism (4) further comprises a first torsion spring (45) sleeving the first pin shaft (43), and two ends of the first torsion spring (45) are connected to the locking member (41) and the mounting housing (42), respectively.
  12. The supporting assembly (100) of the child safety seat according to claim 10 or 11, wherein, the locking mechanism (4) further comprises a button (47), pivotally connected to the mounting housing (42) by a second pin shaft (46) and at least partially covering the locking member (41), and the button (474) has a pressing portion (472) corresponding to the second end (412) of the locking member (41); and/or wherein the first end (411) of the locking member (41) has a curved surface configured to press against the tensioning belt (3); preferably, a ratchet structure is disposed on the curved surface.
  13. The supporting assembly (100) of the child safety seat according to any one of the preceding claims, wherein an elastic member (6) is arranged between the base (1) and the rebound bracket (2), and the elastic member (6) is configured to exert a force on the rebound bracket (2) to keep the rebound bracket (2) away from the base (1) or to keep the rebound bracket (2) close to the base (1).
  14. The supporting assembly (100) of the child safety seat according to claim 13, wherein: the elastic member (6) is a spring, and two ends of the spring are connected to the base (1) and the rebound bracket (2), respectively; or the elastic member (6) is a second torsion spring, a lower end of the rebound bracket (2) is pivotally connected to the base (1) by a third pin shaft (28), the second torsion spring sleeves the third pin shaft (28), and two ends of the second torsion spring are connected to the base (1) and the rebound bracket (2), respectively.
  15. A child safety seat, characterized by being provided with the supporting assembly (100) of the child safety seat according to any one of claims 1 to 14.

Description

CROSS-REFERENCE OF RELATED APPLICATION This application claims the priority of Chinese patent application 202110491918.0, filed on May 6, 2021, and entitled " CHILD SAFETY SEAT, AND SUPPORTING ASSEMBLY THEREOF", the entire content of which is incorporated herein by reference. TECHNICAL FIELD The present application relates to the field of child safety seats, and more particularly, to a child safety seat and a supporting assembly thereof. BACKGROUND The child safety seat is usually configured to be installed on a vehicle seat to provide safety guarantee for travel of infants and young children. The child safety seat includes a seat body and a supporting assembly. The seat body provides a restraint system for the seated infants and young children, and the supporting assembly is configured to firmly and reliably fix the seat body to the vehicle seat, to prevent the seat body from tipping over or sliding relative to the vehicle seat. FIG. 1 shows a side view of a typical supporting assembly of a child safety seat (hereinafter referred to as the supporting assembly). The supporting assembly includes a base 1', a rebound bracket 2', and a load leg 5'. The base 1' is configured to be arranged on the seat body of the vehicle seat, and a rear end of the base 1' is provided with an ISOFIX plug 9' configured to be locked in an ISOFIX socket on the vehicle seat. The rebound bracket 2' is also called a rebound bar and a lower end of the rebound bracket 2' is fixedly attached to the base 1' and is inclined relative to the base 1'. The rebound bracket 2' is configured to press against the backrest of the vehicle seat. The load leg 5' is arranged at a front end of the base 1', and is configured to be supported on the floor of the vehicle. The rebound bracket 2', cooperating with the load leg 5', prevents the base from tipping over when the vehicle is suddenly braked due to an accident, thereby preventing the seat body installed on the base l' from tipping over. When the supporting assembly of the child safety seat is in use, the child safety seat fully plays a protective role when the rebound bracket 2' presses against the backrest of the vehicle seat tightly and the load leg 5' presses against the floor of the vehicle tightly. Because types of vehicles are various, and internal designs of various vehicles are extremely different, in order to ensure that the supporting assembly of the child safety seat can be applicable to various types of vehicles, the load leg 5' is configured to be a multi-section retractable load leg in the related art. The tight pressing effects of the rebound bracket 2' pressing against the seat back and the load leg 5' pressing against the floor of the vehicle is adjusted by adjusting a height of the load leg 5'. EP 3 689 672 A1 discloses a child safety assembly comprising a base portion, to be placed on a vehicle seat and for holding a child safety seat and a brace, to be pressed against a backrest of the vehicle seat. The brace is connected to the base portion, for preventing the base portion from tilting from the vehicle seat. The child safety assembly further comprises tensioning means, extending from the brace and secured to the base portion, and a biasing mechanism, coupled to the tensioning means. The biasing mechanism provides a tension to the tensioning means which draws the brace in a direction downwards to the base portion for providing a pressure of the brace against the backrest of the vehicle seat. SUMMARY The application intends to provide a supporting assembly of a child safety seat, to improve adaptability of the supporting assembly of the child safety seat to various types of vehicles. In one aspect, the application provides a supporting assembly of a child safety seat, including: a base, a rebound bracket, a locking mechanism, and a tensioning belt. The rebound bracket includes a pivotable arm, and a first crossbeam disposed at an upper end of the pivotable arm. A lower end of the pivotable arm is pivotally connected to the base. The locking mechanism is arranged on the base. A first end of the tensioning belt is connected to the base, a second end of the tensioning belt functions as a pulling end, and a middle portion of the tensioning belt is configured to pass through the first crossbeam and the locking mechanism. The second end of the tensioning belt is configured to pass through the first crossbeam first, and then the locking mechanism, and the locking mechanism is configured to lock the tensioning belt. In another aspect, the application provides a supporting assembly of a child safety seat, including: a base, a rebound bracket, a locking mechanism, and a tensioning belt. A rebound bracket includes a pivotable arm, and a first crossbeam disposed at an upper end of the pivotable arm, and a lower end of the pivotable arm is pivotally connected to the base. The locking mechanism is arranged on the first crossbeam. A first end of the tensioning belt is connected to the base, a m