Child safety seat

Patent metadata

Field	Value
Publication number	US-10604034-B2
Application number	US-201816113764-A
Country	US
Kind code	B2
Filing date	Aug 27, 2018
Priority date	Aug 28, 2017
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A child safety seat includes a support base, a seat shell disposed on the support base and having a front end provided with an opening, a harness system for restraining a child, and a release actuator. The harness system includes a locking device that is concealed inside the child safety seat and has a clamping member, and an adjustment strap passing through the locking device and extending outside the seat shell through the opening, an inner portion of the adjustment strap extending inside the child safety seat between the locking device and the opening. The locking device has a release state where the clamping member unclamps the adjustment strap, and a locking state where the clamping member clamps the adjustment strap. The release actuator is configured to operatively connect with the locking device, and is operable to switch the locking device from the locking state to the release state.

First claim

What is claimed is:

1. A child safety seat comprising:
a support base;
a seat shell disposed on the support base and having a front end provided with an opening;
a harness system operable to restrain a child on the seat shell, the harness system including a locking device that is concealed inside the child safety seat and has a clamping member, and an adjustment strap passing through the locking device and extending outside the seat shell through the opening, an inner portion of the adjustment strap extending inside the child safety seat between the locking device and the opening, the locking device having a release state where the clamping member unclamps the adjustment strap for movement of the adjustment strap through the locking device, and a locking state where the clamping member clamps the adjustment strap to prevent movement of the adjustment strap through the locking device; and
a release actuator spaced apart from the locking device and configured to operatively connect with the locking device, the release actuator being operable to switch the locking device from the locking state to the release state.

2. The child safety seat according to claim 1 , further including an extension part connected with the seat shell, the extension part being movable relative to the seat shell to extend forward from a front edge of the seat shell or retract toward the seat shell, the extension part being positioned adjacent to a seatback of a vehicle seat when the child safety seat is installed on the vehicle seat in a rear facing position.

3. The child safety seat according to claim 2 , wherein the release actuator is provided on the extension part, the release actuator being movable along with the extension part relative to the seat shell and the locking device.

4. The child safety seat according to claim 3 , wherein the release actuator is operable to urge the clamping member to unclamp the adjustment strap.

5. The child safety seat according to claim 4 , wherein the release actuator is operatively connected with the locking device via a coupling assembly including a first and a second rod, the first rod being movable with the extension part relative to the second rod and having an end connected with the release actuator, and the second rod being connected with an actuating part that is movable to contact and urge the clamping member to unclamp the adjustment strap.

6. The child safety seat according to claim 5 , wherein the release actuator and the first rod are slidable along an axis relative to the second rod and the locking device during adjustment of the extension part relative to the seat shell, the release actuator is operable to cause the first and second rods and the actuating part to rotate in unison about the axis so that the actuating part contacts and urges the clamping member to unclamp the adjustment strap.

7. The child safety seat according to claim 1 , wherein the release actuator is configured to operatively connect with the locking device via a coupling assembly including a cable, the release actuator being operable to pull the cable and thereby cause the clamping member to unclamp the adjustment strap.

8. The child safety seat according to claim 1 , wherein the release actuator is provided on a side of the seat shell.

9. The child safety seat according to claim 1 , wherein the harness system includes a restraining strap coupled to the adjustment strap, the restraining strap being installable over a child received on the seat shell, loosening of the restraining strap while the locking device is in the release state causing the adjustment strap to slide toward an interior of the seat shell.

10. A child safety seat comprising:
a seat shell;
a harness system for restraining a child on the seat shell, the harness system including a locking device affixed to the seat shell, and an adjustment strap passing through the locking device and extending outside the seat shell, the locking device having a release state allowing movement of the adjustment strap through the locking device, and a locking state preventing movement of the adjustment strap through the locking device;
an extension part connected with the seat shell, the extension part being movable relative to the seat shell to extend forward from a front edge of the seat shell or retract toward the seat shell, the extension part being positioned adjacent to a seatback of a vehicle seat when the child safety seat is installed on the vehicle seat in a rear facing position; and
a release actuator provided on the extension part and operatively connected with the locking device, the release actuator being operable to switch the locking device from the locking state to the release state, and the release actuator being movable along with the extension part relative to the seat shell and the locking device.

11. The child safety seat according to claim 10 , wherein the release actuator is disposed at a front end of the extension part.

12. The child safety seat according to claim 10 , wherein the release actuator is pivotally connected with the extension part.

13. The child safety seat according to claim 10 , wherein the locking device includes a clamping member movable to clamp the adjustment strap in the locking state and unclamp the adjustment strap in the release state, the release actuator being operable to cause the clamping member to unclamp the adjustment strap.

14. The child safety seat according to claim 13 , wherein the release actuator is operatively connected with the locking device via a coupling assembly including a first and a second rod, the first rod being movable with the extension part relative to the second rod and having an end connected with the release actuator, and the second rod being connected with an actuating part that is movable to contact and urge the clamping member to unclamp the adjustment strap.

15. The child safety seat according to claim 14 , wherein the release actuator and the first rod are slidable along an axis relative to the second rod and the locking device during adjustment of the extension part relative to the seat shell, the release actuator is operable to cause the first and second rods and the actuating part to rotate in unison about the axis so that the actuating part contacts and urges the clamping member to unclamp the adjustment strap.

16. The child safety seat according to claim 10 , wherein the harness system includes a restraining strap coupled to the adjustment strap, the restraining strap being installable over a child received on the seat shell, loosening of the restraining strap while the locking device is in the release state causing the adjustment strap to slide toward an interior of the seat shell.

17. A child safety seat comprising:
a support base having a shell body;
a seat shell disposed on the shell body of the support base;
a harness system operable to restrain a child on the seat shell, the harness system including a locking device attached to the shell body of the support base, and an adjustment strap passing through the locking device and extending outside the support base, the locking device having a release state allowing movement of the adjustment strap through the locking device, and a locking state preventing movement of the adjustment strap through the locking device; and
a release actuator provided on the shell body at a location spaced apart from the locking device and configured to operatively connect with the locking device, the release actuator being operable to switch the locking device from the locking state to the release state.

Assignees

• Wonderland Switzerland Ag

Inventors

• Mason Kyle S
• Lehman David A

Classifications

• B60N2/2863

  backward facing · CPC title

• B60N2/286

  forward facing (B60N2/2866 takes precedence) · CPC title

• B60N2/2851

  provided with head-rests · CPC title

• B60N2/2827

  part of the base being supported by the seat sub-frame (B60N2/2893 takes precedence) · CPC title

• B60N2/2872

  provided with side rests · CPC title