Buckle assemblies and associated systems and methods for use with child seats and other restraint systems

• US 10,357,083 B2
• Filed: 09/15/2017
• Issued: 07/23/2019
• Est. Priority Date: 09/16/2016
• Status: Active Grant

• Current Assignee: Shield Restraint Systems, Inc. (Transdigm Group Incorporated)
• Original Assignee: Shield Restraint Systems, Inc. (Transdigm Group Incorporated)
• Inventors: Babin, Brian George, Ireland, Donald Richard, Morgan, Phillip Dale
• Primary Examiner(s): Sandy, Robert
• Application Number:
  US15/706,489
• Publication Number:
  US 20180078001A1
• Time in Patent Office: 676 Days
• CPC Class Codes: A44B 11/2511 acting perpendicularly to the main plane of the buckle, e.g. placed on the front face of the buckle
• CPC Class Codes: A44B 11/2561 Tongue elements
• CPC Class Codes: A44B 11/2569 Safety measures buckles for releasing in a vehicle emergency B60R22/32; control, alarm, or interlock systems for the correct application of safety belt buckles in vehicles B60R22/48
• CPC Class Codes: A44B 11/2573 Locking means preventing an unauthorised opening, e.g. by children
• CPC Class Codes: A44B 11/2592 fastening by sliding in the main plane or a plane parallel to the main plane of the buckle A44B11/2503, A44B11/2584 take precedence
• CPC Class Codes: A44D 2203/00 Fastening by use of magnets
• CPC Class Codes: B60R 22/105 for children adaptation of children's seats for seat belts B60N2/265, B60N2/2803

Abstract

Buckle assemblies and associated systems and methods for use with child seats and other restraint systems are disclosed herein. In one embodiment, a buckle assembly includes a housing having an opening shaped to receive a first tongue of a first web connector and a second tongue of a second web connector. The buckle assembly also includes a spring having a first ejector arm carrying a first magnet and a second ejector arm carrying a second magnet. A switch assembly is positioned within the housing, and insertion of the tongues into the housing to latch the buckle assembly moves the magnets toward the switch assembly to activate switches in the switch assembly and produce a signal confirming buckle engagement.

Claims

1. A restraint system, comprising:

a first web connector having a first tongue;

a second web connector having a second tongue; and

a buckle assembly including—

a housing configured to receive the first and second tongues;

at least one biasing member positioned within the housing;

a first magnet carried by the at least one biasing member;

a second magnet carried by the at least one biasing member; and

at least one switch operably disposed within the housing, wherein insertion of the first and second tongues into the housing moves the first and second magnets from a first position to a second position relative to the at least one switch, and wherein the at least one switch is activated by the first and second magnets when the first and second magnets are in the second position.

2. The restraint system of claim 1 wherein the at least one biasing member exerts an ejecting force against the first and second tongues when the first and second tongues are inserted into the housing.

3. The restraint system of claim 1 wherein the at least one biasing member has a first end portion and a second end portion, and wherein the first end portion carries the first magnet and the second end portion carries the second magnet.

4. The restraint system of claim 1 wherein the at least one biasing member has a first end portion and a second end portion, wherein the first end portion carries the first magnet and the second end portion carries the second magnet, and wherein first tongue moves the first end portion toward the at least one switch and the second tongue moves the second end portion toward the at least one switch when the first and second tongues are inserted into the housing.

5. The restraint system of claim 1 wherein insertion of the first and second tongues into the housing applies a torsional force to the at least one biasing member.

6. The restraint system of claim 1 wherein the at least one switch includes a hall effect switch.

7. The restraint system of claim 1 wherein the second position is closer to the at least one switch than the first position.

8. The restraint system of claim 1 wherein the activated at least one switch provides a signal indicating engagement of the first and second tongues by the buckle assembly.

9. A restraint system, comprising:

a first web connector having a first tongue, wherein the first tongue includes a first engagement feature;

a second web connector having a second tongue, wherein the second tongue includes a second engagement feature, and

a buckle assembly including—

a housing configured to receive the first and second tongues;

at least one biasing member positioned within the housing;

a first magnet operably coupled to the at least one biasing member;

a second magnet operably coupled to the at least one biasing member;

at least one switch operably disposed within the housing, wherein insertion of the first and second tongues into the housing moves the first and second magnets from a first position to a second position relative to the at least one switch, and wherein the at least one switch is activated by the first and second magnets when the first and second magnets are in the second position,

a first locking feature and a second locking feature, wherein the first and second locking features are configured to releasably engage the first and second engagement features, respectively, when the first and second tongues are inserted into the housing; and

a release actuator, wherein actuation of the release actuator disengages the first and second locking features from the first and second engagement features, respectively, and enables the at least one biasing member to drive the first and second tongues out of the housing.

10. A restraint system, comprising:

a first web connector having a first tongue;

a second web connector having a second tongue; and

a buckle assembly including—

a housing configured to receive the first and second tongues;

at least one biasing member positioned within the housing,

a first magnet operably coupled to the at least one biasing member;

a second magnet operably coupled to the at least one biasing member; and

a first switch and a second switch operably disposed within the housing, wherein insertion of the first and second tongues into the housing moves the first and second magnets from a first position to a second position relative to the first and second switches, and wherein the first magnet activates the first switch and the second magnet activates the second switch when the first and second magnets are in the second position.

11. A restraint system, comprising:

a first web connector having a first tongue;

a second web connector having a second tongue; and

a buckle assembly including—

a housing having an opening shaped to receive the first and second tongues;

a biasing member positioned within the housing, the biasing member having a first ejector arm and a second ejector arm;

a first magnet carried by the first ejector arm;

a second magnet carried by the second ejector arm; and

a switch assembly operably disposed within the housing, wherein insertion of the tongues into the housing through the opening moves the first and second ejector arms to move the first and second magnets from a first position spaced apart from the switch assembly to a second position that activates the switch assembly to provide a signal indicating engagement of the first and second tongues by the buckle assembly.

12. The restraint system of claim 11 wherein the first and second ejector arms exert an ejecting force against the first and second tongues, respectively, when the first and second tongues are inserted into the housing.

13. The restraint system of claim 11 wherein the first and second magnets are individually carried in plastic, and wherein the plastic is heated and reformed to attach the first and second magnets to the first and second ejector arms, respectively.

14. A restraint system, comprising:

a first web connector having a first tongue;

a second web connector having a second tongue; and

a buckle assembly including—

a housing having an opening shaped to receive the first and second tongues;

a torsion spring positioned within the housing, the torsion spring having at least a first ejector arm, a second ejector arm, and a first biasing coil spaced apart from a second biasing coil, and wherein the second ejector arm projects from the second biasing coil;

a first magnet operably coupled to the first ejector arm;

a second magnet operably coupled to the second elector arm; and

a switch assembly operably disposed within the housing, wherein insertion of the tongues into the housing through the opening moves the first and second magnets from a first position spaced apart from the switch assembly to a second position that activates the switch assembly to provide a Signal indicating encasement of the first and second tongues by the buckle assembly.

15. A restraint system, comprising:

a first web connector having a first tongue;

a second web connector having a second tongue; and

a buckle assembly including—

a housing having an opening shaped to receive the first and second tongues;

a biasing member formed from a wire and having a first ejector arm and a second ejector arm, wherein a distal end portion of the first ejector arm includes at least a first coil formed from a first portion of the wire, and wherein a distal end portion of the second ejector arm includes at least a second coil formed from a second portion of the wire;

a first magnet held by the first coil;

a second magnet held by the second coil; and

a switch assembly operably disposed within the housing, wherein insertion of the tongues into the housing through the opening moves the first and second magnets from a first position spaced apart from the switch assembly to a second position that activates the switch assembly to provide a signal indicating engagement of the first and second tongues by the buckle assembly.

16. A method for operating a buckle assembly configured to releasably engage first and second web connector tongues, wherein the buckle assembly includes a first magnet, a second magnet, at least one biasing member carrying the first and second magnets, and at least one switch within a housing, the method comprising:

moving the at least one biasing member to move the first magnet to a first position proximate the at least one switch in response to insertion of the first connector tongue into the housing;

moving the at least one biasing member to move the second magnet to a second position proximate the at least one switch in response to insertion of the second connector tongue into the housing; and

activating the at least one switch in response to movement of the first and second connector tongues to the first and second positions, respectively, wherein activation of the at least one switch causes the at least one switch to provide a signal indicating proper engagement of the first and second tongues by the buckle assembly.

17. The method of claim 16 wherein activating the at least one switch in response to movement of the first and second connector tongues includes activating at least one hall effect sensor in response to a magnetic field.

18. The method of claim 16 wherein activation of the at least one switch causes the at least one switch to provide a wireless signal indicating proper engagement of the first and second tongues by the buckle assembly.

19. The method of claim 16 wherein the buckle assembly further includes a release actuator, and wherein the method further comprises ejecting the first and second tongues from the housing via movement of the first and second magnets away from the first and second positions, respectively, in response to actuation of the release actuator.