Child safety seat

• US 10,266,077 B2
• Filed: 10/24/2017
• Issued: 04/23/2019
• Est. Priority Date: 11/11/2016
• Status: Active Grant

• Current Assignee: Wonderland Switzerland AG
• Original Assignee: Wonderland Switzerland AG
• Inventors: Mason, Kyle, Lehman, David Andrew, Hartenstine, Curtis
• Primary Examiner(s): Islam, Syed A
• Application Number:
  US15/791,439
• Publication Number:
  US 20180134187A1
• Time in Patent Office: 546 Days
• Field of Search: 2972501-25617, 29721611, 297464-488
• CPC Class Codes: B60N 2/265 Adaptations for seat belts
• CPC Class Codes: B60N 2/28 Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
• CPC Class Codes: B60N 2/2803 Adaptations for seat belts
• CPC Class Codes: B60N 2/2806 for securing the child seat to the vehicle
• CPC Class Codes: B60N 2/2812 for securing the child to the child seat
• CPC Class Codes: B60N 2/2816 with additional belt accessories, e.g. belt tension detectors
• CPC Class Codes: B60N 2/2851 provided with head-rests
• CPC Class Codes: B60N 2/2866 booster cushions, e.g. to lift a child to allow proper use of the conventional safety belts
• CPC Class Codes: B60N 2002/2815 with additional belt accessories, e.g. a belt tension detector

Abstract

A child safety seat includes a seat back having a routing opening, a seat bottom connected to the seat back for cooperatively providing a seating space with the seat back, a bridge plate having a slot portion and a bending portion, and a safety harness having a shoulder strap and a central adjusting strap. The shoulder strap has two shoulder strap portions slidably routed from a front side of the seat back to a rear side of the seat back through the routing opening. Two rear ends of the two shoulder strap portions located at the rear side of the seat back are permanently coupled to each other through the slot portion. The central adjusting strap is slidably routed to the rear side of the seat back through the seat bottom to be detachably attached to the bending portion for adjusting tightness of the safety harness.

Claims

1. A child safety seat comprising:

a seat back having at least one routing opening;

a seat bottom connected to the seat back for cooperatively providing a seating space with the seat back;

a bridge plate having a slot portion and a bending portion;

a safety harness having a shoulder strap and a central adjusting strap, the shoulder strap having two shoulder strap portions, the two shoulder strap portions being slidably routed from a front side of the seat back to a rear side of the seat back through the routing opening, two rear ends of the two shoulder strap portions located at the rear side of the seat back being permanently coupled to each other through the slot portion, the central adjusting strap being slidably routed to the rear side of the seat back through the seat bottom to be detachably attached to the bending portion for adjusting tightness of the safety harness; and

two clamping doors openably hinged to the front side of the seat back for pivoting between an open position and a closed position;

wherein when each clamping door pivots to the closed position, the two shoulder strap portions are clamped to be flat on the front side by the two clamping doors;

when the clamping door pivots to the open position, clamping of the clamping door on the corresponding shoulder strap portion is released.

2. The child safety seat of claim 1, wherein the two clamping doors are hinged to the front side of the seat back via at least one hinge, and the at least one hinge is oriented vertically along the front side of the seat back.

3. The child safety seat of claim 1, wherein the seat back further has an engaging groove, the clamping door has an engaging structure, and when the clamping door pivots to the closed position, the engaging structure is detachably engaged with the engaging groove to fix the clamping door to the front side of the seat back.

4. The child safety seat of claim 3, wherein the engaging structure has a hook and a bending arm, and the bending arm is connected to the hook and the clamping door for providing an elastic force to drive the hook to be engaged with the engaging groove when the clamping door pivots to the closed position.

5. The child safety seat of claim 1, wherein the two shoulder strap portions are sewn to each other at a position adjacent to the slot portion for preventing the slot portion from sliding along the two shoulder strap portions.

6. The child safety seat of claim 1, wherein the bridge plate further has a body portion integrally formed with the slot portion and the bending portion, the bending portion is a hook for detachably hooking the central adjusting strap, and an accessing path is delimited between the hook and the body portion.

7. The child safety seat of claim 1 further comprising:

a strap positioning mechanism disposed on the seat bottom, the strap positioning mechanism comprising;

a containing housing disposed on the seat bottom;

a clamping plate pivotally disposed in the containing housing and having a clamping end and a releasing end; and

a push button pivotable between a pressed position and a non-pressed position relative to the containing housing;

wherein when the push button is pressed to the pressed position, the push button presses the releasing end to make the clamping end tilted upward for releasing the central adjusting strap;

when the push button is released to the non-pressed position, the releasing end returns to its original position to make the clamping end clamp the central adjusting strap for immobilizing the central adjusting strap.

8. The child safety seat of claim 7, wherein the push button has a pivot portion, a button portion, and a driving portion located between the pivot portion and the button portion, the pivot portion is pivoted to the containing housing to make the button portion pivotable between the pressed position and the non-pressed position, the driving portion abuts against the releasing end, and a pivot position where the clamping plate is pivoted to the containing housing is located between the driving portion and the clamping end;

wherein when the button portion is pressed to the pressed position, the driving portion presses the releasing end to make the clamping end tilted upward for releasing the central adjusting strap;

when the button portion is released to the non-pressed position, the releasing end returns to its original position to make the clamping end clamp the central adjusting strap for immobilizing the central adjusting strap.

9. The child safety seat of claim 1, wherein the safety harness further have an anchor portion, and the anchor portion is connected to the seat bottom and is detachably connected to each shoulder strap portion at the front side of the seat back.

10. The child safety seat of claim 9, wherein the seat bottom has a guide rail structure formed therein and a positioning plate slidable along the guide rail structure between a high position and a low position, the guide rail structure has a first slot corresponding to the high position and a second slot corresponding to the low position, the anchor portion has a connection strap and an anchor, and the connection strap is connected to the positioning plate and the anchor;

wherein when the positioning plate slides to the high position along the guide rail structure, the connection strap extends out of the first slot to have a first length relative to the seat bottom;

when the positioning plate slides to the low position along the guide rail structure, the connection strap extends out of the second slot to have a second length less than the first length.

11. The child safety seat of claim 10, wherein the seat bottom further has a containing space for containing the anchor.

12. The child safety seat of claim 9, wherein the seat bottom has a first slot close to the seat back and a second slot away from the seat back, the anchor portion has a connection strap, an anchor, and a positioning plate, and the connection strap is connected to the positioning plate and the anchor;

wherein when the positioning plate is detachably disposed through the first slot to make the connection strap extend out of the first slot, the anchor portion is positioned close to the seat back on the seat bottom;

when the positioning plate is detachably disposed through the second slot to make the connection strap extend out of the second slot, the anchor portion is positioned away from the seat back on the seat bottom.

13. The child safety seat of claim 12, wherein the seat bottom further has a containing space for containing the anchor.

14. A child safety seat comprising:

a seat back having at least one routing opening;

a seat bottom connected to the seat back for cooperatively providing a seating space with the seat back;

a bridge plate having a slot portion and a bending portion;

a safety harness having a shoulder strap and a central adjusting strap, the shoulder strap having two shoulder strap portions, the two shoulder strap portions being slidably routed from a front side of the seat back to a rear side of the seat back through the routing opening, two rear ends of the two shoulder strap portions located at the rear side of the seat back being permanently coupled to each other through the slot portion, the central adjusting strap being slidably routed to the rear side of the seat back through the seat bottom to be detachably attached to the bending portion for adjusting tightness of the safety harness; and

a strap positioning mechanism disposed on the seat bottom, the strap positioning mechanism comprising;

a containing housing disposed on the seat bottom;

a clamping plate pivotally disposed in the containing housing and having a clamping end and a releasing end; and

a push button pivotable between a pressed position and a non-pressed position relative to the containing housing;

wherein when the push button is pressed to the pressed position, the push button presses the releasing end to make the clamping end tilted upward for releasing the central adjusting strap;

when the push button is released to the non-pressed position, the releasing end returns to its original position to make the clamping end clamp the central adjusting strap for immobilizing the central adjusting strap.

15. The child safety seat of claim 14, wherein the two shoulder strap portions are sewn to each other at a position adjacent to the slot portion for preventing the slot portion from sliding along the two shoulder strap portions.

16. The child safety seat of claim 14, wherein the bridge plate further has a body portion integrally formed with the slot portion and the bending portion, the bending portion is a hook for detachably hooking the central adjusting strap, and an accessing path is delimited between the hook and the body portion.

17. The child safety seat of claim 14, wherein the push button has a pivot portion, a button portion, and a driving portion located between the pivot portion and the button portion, the pivot portion is pivoted to the containing housing to make the button portion pivotable between the pressed position and the non-pressed position, the driving portion abuts against the releasing end, and a pivot position where the clamping plate is pivoted to the containing housing is located between the driving portion and the clamping end;

wherein when the button portion is pressed to the pressed position, the driving portion presses the releasing end to make the clamping end tilted upward for releasing the central adjusting strap;

when the button portion is released to the non-pressed position, the releasing end returns to its original position to make the clamping end clamp the central adjusting strap for immobilizing the central adjusting strap.

18. The child safety seat of claim 14, wherein the safety harness further have an anchor portion, and the anchor portion is connected to the seat bottom and is detachably connected to each shoulder strap portion at the front side of the seat back.

19. The child safety seat of claim 18, wherein the seat bottom has a guide rail structure formed therein and a positioning plate slidable along the guide rail structure between a high position and a low position, the guide rail structure has a first slot corresponding to the high position and a second slot corresponding to the low position, the anchor portion has a connection strap and an anchor, and

the connection strap is connected to the positioning plate and the anchor;

wherein when the positioning plate slides to the high position along the guide rail structure, the connection strap extends out of the first slot to have a first length relative to the seat bottom;

when the positioning plate slides to the low position along the guide rail structure, the connection strap extends out of the second slot to have a second length less than the first length.

20. The child safety seat of claim 19, wherein the seat bottom further has a containing space for containing the anchor.

21. The child safety seat of claim 18, wherein the seat bottom has a first slot close to the seat back and a second slot away from the seat back, the anchor portion has a connection strap, an anchor, and a positioning plate, and the connection strap is connected to the positioning plate and the anchor;

wherein when the positioning plate is detachably disposed through the first slot to make the connection strap extend out of the first slot, the anchor portion is positioned close to the seat back on the seat bottom;

when the positioning plate is detachably disposed through the second slot to make the connection strap extend out of the second slot, the anchor portion is positioned away from the seat back on the seat bottom.

22. The child safety seat of claim 21, wherein the seat bottom further has a containing space for containing the anchor.

23. A child safety seat comprising:

a seat back having at least one routing opening;

a seat bottom connected to the seat back for cooperatively providing a seating space with the seat back, the seat bottom having a guide rail structure formed therein and a positioning plate slidable along the guide rail structure between a high position and a low position, the guide rail structure having a first slot corresponding to the high position and a second slot corresponding to the low position;

a bridge plate having a slot portion and a bending portion; and

a safety harness having a shoulder strap, an anchor portion and a central adjusting strap, the shoulder strap having two shoulder strap portions, the two shoulder strap portions being slidably routed from a front side of the seat back to a rear side of the seat back through the routing opening, two rear ends of the two shoulder strap portions located at the rear side of the seat back being permanently coupled to each other through the slot portion, the central adjusting strap being slidably routed to the rear side of the seat back through the seat bottom to be detachably attached to the bending portion for adjusting tightness of the safety harness, the anchor portion being detachably connected to each shoulder strap portion at the front side of the seat back, the anchor portion having a connection strap and an anchor, and the connection strap being connected to the positioning plate and the anchor;

wherein when the positioning plate slides to the high position along the guide rail structure, the connection strap extends out of the first slot to have a first length relative to the seat bottom;

when the positioning plate slides to the low position along the guide rail structure, the connection strap extends out of the second slot to have a second length less than the first length.

24. The child safety seat of claim 23, wherein the two shoulder strap portions are sewn to each other at a position adjacent to the slot portion for preventing the slot portion from sliding along the two shoulder strap portions.

25. The child safety seat of claim 23, wherein the bridge plate further has a body portion integrally formed with the slot portion and the bending portion, the bending portion is a hook for detachably hooking the central adjusting strap, and an accessing path is delimited between the hook and the body portion.

26. The child safety seat of claim 23, wherein the seat bottom further has a containing space for containing the anchor.