Child seat with belt tensioning mechanism for improved installation

• US 8,845,022 B2
• Filed: 09/04/2012
• Issued: 09/30/2014
• Est. Priority Date: 09/04/2012
• Status: Active Grant

• Current Assignee: Britax Child Safety Incorporated (Cc 1 (2011) Ltd.)
• Original Assignee: Britax Child Safety Incorporated (Cc 1 (2011) Ltd.)
• Inventors: Strong, Lynn Curtis, Gunter, Mark, Reed, Scott Alan
• Primary Examiner(s): WHITE, RODNEY BARNETT
• Application Number:
  US13/602,846
• Publication Number:
  US 20140062150A1
• Time in Patent Office: 756 Days
• Field of Search: 297/256.16
• US Class Current: 297/256.16
• CPC Class Codes: B60N 2/2824 part of the base being supported by the vehicle frame B60N2/289 takes precedence
• CPC Class Codes: B60N 2/2851 provided with head-rests
• CPC Class Codes: B60N 2/286 forward facing B60N2/2866 takes precedence
• CPC Class Codes: B60N 2/2863 backward facing
• CPC Class Codes: B60N 2/2887 Fixation to a transversal anchorage bar, e.g. isofix
• CPC Class Codes: B60N 2/75 Arm-rests
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A child seat including a tensioning mechanism for applying tension to a seat belt to more fully secure the child seat to a car seat is provided herein. The child seat includes a seat base defining a seat portion and a backrest portion and designed to receive an untensioned belt to secure the child seat to a car seat in an untensioned configuration. The child seat further includes a tensioning mechanism attached to the backrest portion and rotatable between a first position substantially adjacent to the backrest portion and a second position disposed therefrom. In the second position, the tensioning mechanism can receive a portion of the belt. In the first position, the tensioning mechanism is configured to apply tension to the portion of the received belt to secure the child seat to the car seat in a tensioned configuration. Methods of manufacturing child seats are also provided herein.

Claims

1. A child seat configured to be secured to a car seat, the child seat comprising:

a seat base defining a seat portion and a backrest portion, wherein the seat base is configured to receive an untensioned belt of the car seat to secure the child seat to the car seat in an untensioned configuration, wherein the belt defines a lap section and a shoulder section, wherein the seat base further defines a first arm rest and a second arm rest, wherein a top surface of each arm rest extends in a first horizontal plane; and

a tensioning mechanism attached to the backrest portion of the seat base, wherein the tensioning mechanism is rotatable between a first position substantially adjacent to the backrest portion of the seat base and a second position disposed therefrom, wherein, in the second position, the tensioning mechanism is configured to receive a portion of the lap section of the belt and a portion of the shoulder section of the belt, wherein, in the second position, a bottom surface of the tensioning mechanism extends in a second horizontal plane, wherein the second horizontal plane is above the first horizontal plane such that the top surface of each arm rest and the bottom surface of the tensioning mechanism define a belt guide channel configured to allow a user to position the portion of the lap section and the portion of the shoulder section of the belt therebetween, and wherein, in the first position, the tensioning mechanism is configured to apply tension to the portion of the lap section and the portion of the shoulder section of the belt to secure the child seat to the car seat in a tensioned configuration.

2. The child seat according to claim 1, wherein the tensioning mechanism is configured to rotate, in response to receiving a substantially vertical force, from the second position to the first position to apply tension to the portion of the lap section and the portion of the shoulder section of the belt to secure the child seat to the car set in the tensioned configuration.

3. The child seat according to claim 1, wherein each arm rest defines a curved surface that is configured to guide the portion of the lap section and the portion of the shoulder section of the belt into engagement with the tensioning mechanism when the tensioning mechanism is disposed in the second position.

4. The child seat according to claim 1, wherein the seat base further defines a first arm rest and a second arm rest, wherein each arm rest defines an angled surface proximate the backrest position, wherein the angled surface is configured to adjacently engage and align the portion of the lap section and the portion of the shoulder section of the belt when the child seat is in the tensioned configuration.

5. The child seat according to claim 1 further comprising a harness defining a first belt and a second belt, wherein the first belt and the second belt each extend from the backrest portion at a first end to a second end that is fixedly attached to the tensioning mechanism, wherein the second ends of the first belt and the second belt of the harness are each configured to rotate with the tensioning mechanism between the first position and the second position.

6. The child seat according to claim 1, wherein the seat base further defines opposing side portions, wherein each side portion comprises a lock receiving portion, wherein the tensioning mechanism further comprises:

a locking mechanism comprising two laterally-opposing locking members configured to translate between an extended position and a retracted position, wherein each lock receiving portion is configured to receive a respective locking member when the tensioning mechanism is in the first position and the locking members are in the extended position, thereby locking the tensioning mechanism in the first position, and wherein the locking members are configured to automatically translate to the extended position when the tensioning mechanism is rotated from the second position to the first position.

7. The child seat according to claim 6, wherein the locking members are biased toward the extended position, wherein the locking mechanism comprises a retaining member and a trigger member, wherein the retaining member is configured to retain the locking members in the retracted position, wherein the trigger member is configured to interact with the backrest portion of the seat base when the tensioning mechanism is rotated to the first position to move the trigger member from a trigger position to a withdrawn position, and wherein the trigger member is configured to cause the retaining member to release the locking members in the withdrawn position.

8. The child seat according to claim 6, wherein the locking mechanism comprises a latch configured to enable a user to translate the locking members from the extended position to the retracted position.

9. The child seat according to claim 8, wherein the latch defines two pockets that are configured to each receive a finger of a user, wherein the two pockets are configured to translate toward each other to cause the locking members to move from the extended position to the retracted position.

10. The child seat according to claim 6, wherein the seat base defines a ramp proximate each lock receiving portion, wherein the ramp is configured to engage and at least partially retract the locking members from the extended position to enable the tensioning mechanism to rotate from the second position to the first position.

11. A child seat configured to be secured to a car seat, the child seat comprising:

a seat base defining a seat portion and a backrest portion, wherein the seat base is configured to receive an untensioned belt of the car seat to secure the child seat to the car seat in an untensioned configuration, wherein the seat base further defines opposing side portions, wherein each side portion comprises a lock receiving portion; and

a tensioning mechanism attached to the backrest portion of the seat base, wherein the tensioning mechanism is rotatable between a first position substantially adjacent to the backrest portion of the seat base and a second position disposed therefrom, wherein,

in the second position, the tensioning mechanism is configured to receive a portion of the belt, wherein, in the first position, the tensioning mechanism is configured to apply tension to the portion of the belt to secure the child seat to the car seat in a tensioned configuration, and wherein the tensioning mechanism further comprises;

a locking mechanism comprising two laterally-opposing locking members configured to translate between an extended position and a retracted position, wherein each lock receiving portion is configured to receive a respective locking member when the tensioning mechanism is in the first position and the locking members are in the extended position, thereby locking the tensioning mechanism in the first position, and wherein the locking members are configured to automatically translate to the extended position when the tensioning mechanism is rotated from the second position to the first position.

12. The child seat according to claim 11, wherein the tensioning mechanism is configured to rotate, in response to receiving a substantially vertical force, from the second position to the first position to apply tension to the portion of the belt to secure the child seat to the car set in the tensioned configuration.

13. The child seat according to claim 11, wherein the locking members are biased toward the extended position, wherein the locking mechanism comprises a retaining member and a trigger member, wherein the retaining member is configured to retain the locking members in the retracted position, wherein the trigger member is configured to interact with the backrest portion of the seat base when the tensioning mechanism is rotated to the first position to move the trigger member from a trigger position to a withdrawn position, and wherein the trigger member is configured to cause the retaining member to release the locking members in the withdrawn position.

14. The child seat according to claim 11, wherein the locking mechanism comprises a latch configured to enable a user to translate the locking members from the extended position to the retracted position.

15. The child seat according to claim 14, wherein the latch defines two pockets that are configured to each receive a finger of a user, wherein the two pockets are configured to translate toward each other to cause the locking members to move from the extended position to the retracted position.

16. The child seat according to claim 11, wherein the seat base further defines a first arm rest and a second arm rest, wherein a top surface of each arm rest extends in a first horizontal plane, and wherein, in the second position, a bottom surface of the tensioning mechanism extends in a second horizontal plane, wherein the second horizontal plane is above the first horizontal plane such that the top surface of each arm rest and the bottom surface of the tensioning mechanism define a belt guide channel configured to allow a user to position the portion of the belt therebetween.

17. The child seat according to claim 11 further comprising a harness defining a first belt and a second belt, wherein the first and second belts each extend from the backrest portion at a first end to a second end that is fixedly attached to the tensioning mechanism, wherein the second ends of the first and second belts of the harness are each configured to rotate with the tensioning mechanism between the first position and the second position.

18. A method for manufacturing a child seat configured to be secured to a car seat, the method comprising:

providing a seat base defining a seat portion and a backrest portion, wherein the seat base is configured to receive an untensioned belt of the car seat to secure the child seat to the car seat in an untensioned configuration, wherein the belt defines a lap section and a shoulder section, wherein the seat base further defines a first arm rest and a second arm rest, wherein a top surface of each arm rest extends in a first horizontal plane; and

attaching a tensioning mechanism to the seat base, wherein the tensioning mechanism is rotatable between a first position substantially adjacent to the backrest portion of the seat base and a second position disposed therefrom, wherein, in the second position, the tensioning mechanism is configured to receive a portion of the lap section of the belt and a portion of the shoulder section of the belt, wherein, in the second position, a bottom surface of the tensioning mechanism extends in a second horizontal plane, wherein the second horizontal plane is above the first horizontal plane such that the top surface of each arm rest and the bottom surface of the tensioning mechanism define a belt guide channel configured to allow a user to position the portion of the lap section and the portion of the shoulder section of the belt therebetween, and wherein, in the first position, the tensioning mechanism is configured to apply tension to the portion of the lap section of the belt and the portion of the shoulder section of the belt to secure the child seat to the car seat in a tensioned configuration.

19. A method for manufacturing a child seat configured to be secured to a car seat, the method comprising:

providing a seat base defining a seat portion and a backrest portion, wherein the seat base is configured to receive an untensioned belt of a car seat to secure the child seat to the car seat in an untensioned configuration, wherein the seat base further defines opposing side portions, wherein each side portion comprises a lock receiving portion; and

attaching a tensioning mechanism to the seat base, wherein the tensioning mechanism is rotatable between a first position substantially adjacent to the backrest portion of the seat base and a second position disposed therefrom, wherein, in the second position, the tensioning mechanism is configured to receive a portion of the belt, wherein, in the first position, the tensioning mechanism is configured to apply tension to the portion of the belt to secure the child seat to the car seat in a tensioned configuration, and wherein the tensioning mechanism further comprises;

a locking mechanism comprising two laterally-opposing locking members configured to translate between an extended position and a retracted position, wherein each lock receiving portion is configured to receive a respective locking member when the tensioning mechanism is in the first position and the locking members are in the extended position, thereby locking the tensioning mechanism in the first position, and wherein the locking members are configured to automatically translate to the extended position when the tensioning mechanism is rotated from the second position to the first position.

20. A child seat configured to be secured to a car seat, the child seat comprising:

a seat base defining a seat portion and a backrest portion, wherein the seat base is configured to receive an untensioned belt of the car seat to secure the child seat to the car seat in an untensioned configuration, wherein the belt defines a lap section and a shoulder section;

a tensioning mechanism attached to the backrest portion of the seat base, wherein the tensioning mechanism is rotatable between a first position substantially adjacent to the backrest portion of the seat base and a second position disposed therefrom, wherein, in the second position, the tensioning mechanism is configured to receive a portion of the lap section of the belt and a portion of the shoulder section of the belt, wherein, in the first position, the tensioning mechanism is configured to apply tension to the portion of the lap section and the portion of the shoulder section of the belt to secure the child seat to the car seat in a tensioned configuration; and

a harness defining a first belt and a second belt, wherein the first belt and the second belt each extend from the backrest portion at a first end to a second end that is fixedly attached to the tensioning mechanism, wherein the second ends of the first belt and the second belt of the harness are each configured to rotate with the tensioning mechanism between the first position and the second position.

21. A method for manufacturing a child seat configured to be secured to a car seat, the method comprising:

providing a seat base defining a seat portion and a backrest portion, wherein the seat base is configured to receive an untensioned belt of the car seat to secure the child seat to the car seat in an untensioned configuration, wherein the belt defines a lap section and a shoulder section;

attaching a tensioning mechanism to the seat base, wherein the tensioning mechanism is rotatable between a first position substantially adjacent to the backrest portion of the seat base and a second position disposed therefrom, wherein, in the second position, the tensioning mechanism is configured to receive a portion of the lap section of the belt and a portion of the shoulder section of the belt, wherein, in the first position, the tensioning mechanism is configured to apply tension to the portion of the lap section of the belt and the portion of the shoulder section of the belt to secure the child seat to the car seat in a tensioned configuration; and

attaching a harness defining a first belt and a second belt to the tensioning mechanism, wherein the first belt and the second belt each extend from the backrest portion at a first end to a second end that is fixedly attached to the tensioning mechanism, wherein the second ends of the first belt and the second belt of the harness are each configured to rotate with the tensioning mechanism between the first position and the second position.