Forward and rearward facing child seat with belt tensioning mechanism for improved installation

• US 9,499,074 B2
• Filed: 10/25/2013
• Issued: 11/22/2016
• Est. Priority Date: 10/25/2013
• 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): Allred, David E
• Application Number:
  US14/063,807
• Publication Number:
  US 20150115676A1
• Time in Patent Office: 1,124 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B60N 2/26 for children B60N2/30 takes precedence
• 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 2/2806 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 2/2851 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 2/2872 provided with side 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 vehicle seat is provided herein. The child seat, which may be front- and/or rear-facing, includes a seat base defining a seat portion and a backrest portion. The seat base can receive an untensioned belt to secure the child seat to a vehicle seat in an untensioned configuration. A tensioning mechanism attached to the backrest portion and is 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 applies tension to the portion of the received belt to secure the child seat to the vehicle 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 vehicle seat in both a rear-facing and front-facing orientation, the child seat comprising:

a seat base defining a seat portion, a backrest portion, and first and second lateral edges that protrude forwardly and upwardly from the seat and backrest portions, wherein the seat base is configured to receive a belt of the vehicle seat in an untensioned state to secure the child seat to the vehicle seat in an untensioned configuration; and

a tensioning mechanism having a proximal end pivotally attached to the backrest portion of the seat base and a distal end comprising a sitting surface for an occupant of the child seat and an engaging surface facing opposite to the sitting surface, wherein the tensioning mechanism is movable downwardly and forwardly to a first position substantially adjacent to the seat base and upwardly and rearwardly to a second position displaced therefrom, wherein placing the tensioning mechanism in the second position allows the seat base to receive the belt, and movement of the tensioning mechanism from the second position to the first position presses the belt against the first and second edges and deflects a portion of the belt between first and second edges to be closer to the seat or backrest portion than portions of the belt that engage the first and second edges and thus applies tension to the belt to secure the child seat to the vehicle seat in a tensioned configuration,

wherein the seat base of the child seat is configured to receive the belt when the seat base is in both a rear-facing orientation and when the seat base is in a front-facing orientation.

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 belt to secure the child seat to the vehicle seat in a tensioned configuration.

3. The child seat according to claim 1, wherein the seat base is configured to receive the belt so as to define a first belt path spanning the first and second edges.

4. The child seat according to claim 3, wherein each of the first and second edges further comprises an inlet channel and a retaining channel, wherein each inlet channel is configured to guide the portions of the belt that engage the first and second edges into the respective retaining channel.

5. The child seat according to claim 3, wherein the seat base is further configured to receive the belt so as to define the first belt path when the child seat is in the rear-facing orientation, and wherein the seat base is configured to receive the belt so as to define a second belt path spanning the first and second edges when the child seat is in the forward-facing orientation.

6. The child seat according to claim 5, wherein the first belt path is defined between the tensioning mechanism and the seat base at a position proximate an intermediate region of the seat portion.

7. The child seat according to claim 5, wherein the second belt path is defined between the tensioning mechanism and the seat base at a position proximate an intersection of the backrest portion and the seat portion.

8. The child seat according to claim 5, wherein a force for moving the tensioning mechanism from the second position to the first position while the belt is in the first belt path is substantially the same as a force for moving the tensioning mechanism from the second position to the first position while the belt is in the second belt path;

and

wherein the resulting tension applied to the belt in the first belt path is substantially the same as the resulting tension applied to the belt in the second belt path.

9. The child seat according to claim 3, wherein the seat base provides an open belt path, such that the seat base is configured to receive an edge of the belt when the tensioning mechanism is in the second position while the belt is in a buckled position with the vehicle seat.

10. 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.

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

a seat base defining a seat portion and a backrest portion, wherein the seat base is configured to receive a belt of the vehicle seat in an untensioned state to secure the child seat to the vehicle seat in an untensioned configuration, wherein the seat base further defines a first edge and a second edge that protrude forwardly and upwardly from the seat and backrest portions, wherein the seat base is configured to receive the portion of the lap section and the portion of the shoulder section of the belt so as to define a belt path spanning the first and second edges, wherein each of the first and second edges further comprise an inlet channel and a retaining channel such that the belt path extends from the retaining channel in the first edge to the retaining channel in the second edge, wherein the inlet channels of the first and second edge guide the belt into the retaining channels; and

a tensioning mechanism having a proximal end pivotally attached to the backrest portion of the backrest portion of the seat base and a distal end comprising a sitting surface for an occupant of the child seat and an engaging surface facing opposite to the sitting surface, wherein the tensioning mechanism is rotatable downwardly and forwardly to a first position substantially adjacent to the seat base and upwardly and rearwardly to a second position displaced therefrom, wherein placing the tensioning mechanism in the second position allows the seat base to receive the belt, and the movement of the tensioning mechanism from the second position to the first position presses the belt against the first and second edges and deflects a portion of the belt between first and second edges to be closer to the seat or backrest portion than portions of the belt that engage the first and second edges and thus applies tension to the belt to secure the child seat to the vehicle seat in a tensioned configuration.

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 belt to secure the child seat to the vehicle seat in a tensioned configuration.

13. The child seat according to claim 11, wherein the belt path is defined between the tensioning mechanism and the seat base at a position proximate the center of the seat portion, so as to position the child seat in a rear-facing orientation.

14. The child seat according to claim 11, wherein the belt path is defined between the tensioning mechanism and the seat base at a position proximate the intersection of the backrest portion and seat portion, so as to position the child seat in a front-facing orientation.

15. The child seat according to claim 11, 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.

16. A method for manufacturing a child seat configured to be secured to a vehicle seat in both a rear-facing orientation and a front-facing orientation, the method comprising:

providing a seat base defining a seat portion, a backrest portion, and first and second lateral edges that protrude forwardly and upwardly from the seat and backrest portions, wherein the seat base is configured to receive a belt of the vehicle seat in an untensioned state to secure the child seat to the vehicle seat in an untensioned configuration; and

attaching a proximal end of a tensioning mechanism the backrest portion of to the seat base, wherein a distal end of the tensioning mechanism comprises a sitting surface for an occupant of the child seat and an engaging surface facing opposite to the sitting surface, wherein the tensioning mechanism is rotatable downwardly and forwardly to a first position substantially adjacent to the seat base and upwardly and rearwardly to a second position displaced therefrom, wherein placing the tensioning mechanism in the second position allows the seat base to receive the belt, and the movement of the tensioning mechanism from the second position to the first position presses the belt against the first and second edges and deflects a portion of the belt between first and second edges to be closer to the seat or backrest portion than portions of the belt that engage the first and second edges and thus applies tension to the belt to secure the child seat to the vehicle seat in a tensioned configuration, wherein the seat base of the child seat is configured to receive the belt in both a rear-facing and front-facing orientation.

17. The method for manufacturing a child seat according to claim 16, wherein the seat base is configured to receive the belt so as to define a first belt path spanning the first and second edges, wherein each of the first and second edges further comprises an inlet channel and a retaining channel, wherein each inlet channel is configured to guide a portion of the belt into the respective retaining channel.