Sliding buckle anchor for child seat system

Abstract

A child seat system includes a seat portion and a crotch buckle attached to a crotch strap. The crotch strap is coupled to the seat portion. The crotch buckle is affixed to the seat portion by an energy absorbing device. The energy absorbing device includes a movable component coupled to the crotch strap and at least one energy absorbing member engageable with the movable component to restrict movement of the movable component. The movable component is movable relative to the seat portion during a crash event.

Description

SLIDING BUCKLE ANCHOR FOR CHILD SEAT SYSTEMCROSS REFERENCE TO RELATED APPLICATIONSThis application claims the benefit of U.S. Application No. 63 / 706,281, filed on October 11, 2024, and U.S. Application No. 63 / 734,502, filed on December 16, 2024, which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0001] The present disclosure relates to systems, assemblies, and methods for impact protection for a car seat in a vehicle.BACKGROUND

[0002] A child seat system is a baby product developed specifically for young children traveling in a car. The young child may be held in the child seat system by a harness system, belts, buckles, and / or vehicle belts. A conventional harness or belt is fixedly anchored to the child seat system. The child seat system can effectively protect a child from injuries caused by forceful braking, collisions, or other sudden movements of the car. Child seat systems are popular among people with children to ensure the safety of the child in the car.

[0003] Child seat system can include various features for impact protection, which may include features directed to improving frontal impact performance, side impact performance, both types of impact, and / or other types of impacts, crash tests, etc.BRIEF DESCRIPTION

[0004] According to an embodiment, a child seat system includes a seat portion and a crotch buckle attached to a crotch strap. The crotch strap is coupled to the seat portion. The crotch buckle is affixed to the seat portion by an energy absorbing device. The energy absorbing device includes a movable component coupled to the crotch strap and at least one energy absorbing member engageable with the movable component to restrict movement of the movable component. The movable component is movable relative to the seat portion during a crash event.

[0005] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is deformable in response to the movement of the movable component relative to the seat portion.

[0006] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is a resilient component.

[0007] In addition, to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is formed from a sheet metal material.

[0008] In addition to one or more of the features described above, or as an alternative, in further embodiments an end of the at least one energy absorbing member is engaged with the movable component to restrict movement of the movable component relative to the seat portion.

[0009] In addition to one or more of the features described above, or as an alternative, in further embodiments the end of the at least one energy absorbing member includes a notch and engagement between the movable component and the notch restricts movement of the movable component when a force applied to the movable component is less than a threshold.

[0010] In addition to one or more of the features described above, or as an alternative, in further embodiments the notch is contoured such that the movable component is movable out of engagement with the notch when the force applied to the movable component is greater than the threshold.

[0011] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member has a first region, a second region, and a central region disposed between the first region and the second region. The movable component is engageable with a surface of the second region as the movable component moves relative to the seat portion.

[0012] In addition to one or more of the features described above, or as an alternative, in further embodiments the second region of the at least one energy absorbing member is rotatable as the movable component moves relative to the seat portion.

[0013] In addition to one or more of the features described above, or as an alternative, in further embodiments a portion of the at least one energy absorbing member is deformable in response to rotation of the second region.

[0014] In addition to one or more of the features described above, or as an alternative, in further embodiments the central region of the at least one energy absorbing member is deformable in response to rotation of the second region.

[0015] In addition to one or more of the features described above, or as an alternative, in further embodiments the energy absorbing device further comprises a bracket including atleast one arm and the at least one energy absorbing member is fixedly mounted to the at least one arm.

[0016] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one arm includes an anchor slot, the movable component being slidably mounted within the anchor slot.

[0017] In addition to one or more of the features described above, or as an alternative, in further embodiments the movable component is a pin.

[0018] According to an embodiment, a child seat system includes a body mountable to a vehicle seat, a movable component mounted to the body, a buckle coupled to movable component and an energy absorbing device associated with the body. The energy absorbing device includes at least one energy absorbing member operable to selectively restrict movement of the movable component. The movable component is movable in a same direction as a force applied to the child seat in response to a crash event.

[0019] In addition to one or more of the features described above, or as an alternative, in further embodiments the direction of the force applied to the child seat in response to the crash event is toward the at least one energy absorbing member.

[0020] In addition to one or more of the features described above, or as an alternative, in further embodiments the force applied to the child seat in response to the crash event is oriented parallel to a portion of the at least one energy absorbing member.

[0021] In addition to one or more of the features described above, or as an alternative, in further embodiments the force applied to the child seat in response to the crash event is oriented parallel to the portion of the at least one energy absorbing member engageable by the movable component.

[0022] In addition to one or more of the features described above, or as an alternative, in further embodiments the movable component is not movable in response to a force applied in a direction away from the at least one energy absorbing member.

[0023] In addition to one or more of the features described above, or as an alternative, in further embodiments the energy absorbing device further comprises a bracket including at least one arm and the at least one energy absorbing member is fixedly mounted to the at least one arm.

[0024] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one arm includes an anchor slot and the movable component is slidably mounted within the anchor slot. The movable component is slidable within the anchor slot in response to the crash event.

[0025] In addition to one or more of the features described above, or as an alternative, in further embodiments the movable component is a pin.

[0026] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is deformable in response to the movement of the movable component.

[0027] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is a resilient component.

[0028] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is formed from a sheet metal material.

[0029] In addition to one or more of the features described above, or as an alternative, in further embodiments an end of the at least one energy absorbing member is engaged with the movable component to restrict movement of the movable component.

[0030] In addition to one or more of the features described above, or as an alternative, in further embodiments the end of the at least one energy absorbing member includes a notch and engagement between the movable component and the notch restricts movement of the movable component when the force applied to the child seat in response to the crash event is less than a threshold.

[0031] In addition to one or more of the features described above, or as an alternative, in further embodiments the notch is contoured such that the movable component is movable out of engagement with the notch when the force applied to the movable component in response to the crash event is greater than the threshold.

[0032] According to an embodiment, an energy absorbing device associated with a child seat includes a movable component operably coupled to a harness of the child seat and movable along a path of movement. At least one energy absorbing member is positionable adjacent to the movable component at least partially within the path of movement such that the at least one energy absorbing member selectively restricts movement of the movable component. The at least one energy absorbing member is movable out of the path of movement of the movable component when a force acting on the harness exceeds a threshold.

[0033] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member within the path of movement is engageable with the movable component.

[0034] In addition to one or more of the features described above, or as an alternative, in further embodiments a notch formed in the at least one energy absorbing member is engageable with the movable component to restrict movement of the movable component.

[0035] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is rotatable out of the path of movement in response to the movement of the movable component along the path of movement.

[0036] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is deformable in response to the movement of the movable component along the path of movement.

[0037] In addition to one or more of the features described above, or as an alternative, in further embodiments the movable component is not movable along the path of movement when the force acting on the harness is less than the threshold.

[0038] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is a resilient component.

[0039] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is formed from a sheet metal material.

[0040] In addition to one or more of the features described above, or as an alternative, in further embodiments the energy absorbing device includes a bracket including at least one arm and the at least one energy absorbing member is fixedly mounted to the at least one arm.

[0041] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one arm includes an anchor slot and the movable component is slidably mounted within the anchor slot.

[0042] In addition to one or more of the features described above, or as an alternative, in further embodiments the movable component is a pin.

[0043] According to an embodiment, a child seat system includes a seat portion, an energy absorbing device associated with the seat portion, and a crotch buckle affixed to the energy absorbing device. The crotch buckle is transformable between a first mode and a second mode. The energy absorbing device is operable to absorb energy applied to the crotch buckle only when the crotch buckle is in the first mode.

[0044] In addition to one or more of the features described above, or as an alternative, in further embodiments the energy absorbing device includes at least one energy absorbing member, and a movable component. The crotch strap is affixed to the movable component.

[0045] In addition to one or more of the features described above, or as an alternative, in further embodiments in the first mode, the crotch buckle is operable to apply a force to the movable component toward the at least one energy absorbing member.

[0046] In addition to one or more of the features described above, or as an alternative, in further embodiments in the second mode, the crotch buckle is operable to apply a force to the movable component away from the at least one energy absorbing member.

[0047] In addition to one or more of the features described above, or as an alternative, in further embodiments the crotch buckle is in the first mode when the crotch buckle is positioned rearward of the movable component.

[0048] In addition to one or more of the features described above, or as an alternative, in further embodiments the crotch buckle is in the second mode when the crotch buckle is positioned forward of the movable component.

[0049] In addition to one or more of the features described above, or as an alternative, in further embodiments a buckle position adjuster positioned proximate a seat support surface of the seat portion. The buckle position adjuster is movable between a first position and a second position.

[0050] In addition to one or more of the features described above, or as an alternative, in further embodiments the crotch buckle is in the first mode when the buckle position adjuster is in the first position and the crotch buckle is in the second mode when the buckle position adjuster is in the second position.

[0051] In addition to one or more of the features described above, or as an alternative, in further embodiments the energy absorbing device includes a bracket including at least one arm and the at least one energy absorbing member is fixedly mounted to the at least one arm.

[0052] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one arm includes an anchor slot and the movable component is slidably mounted within the anchor slot. The movable component is slidable within the anchor slot in response to the crash event when the crotch buckle is in the first mode.

[0053] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is deformable in response to engagement with the movable component.

[0054] In addition to one or more of the features described above, or as an alternative, in further embodiments the at least one energy absorbing member is a resilient component.BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The following descriptions should not be considered limiting in any way. With reference to the accompanying drawings, like elements are numbered alike:

[0056] FIG. 1A is a perspective view of an energy absorbing device according to an embodiment;

[0057] FIG. IB is a top view of the energy absorbing device of FIG. 1A according to an embodiment;

[0058] FIG. 2 is an exploded view of the energy absorbing device of FIGS. 1A and IB according to an embodiment;

[0059] FIG. 3A is a side view of the energy absorbing device of FIGS. 1 A and IB according to an embodiment;

[0060] FIG. 3B is a detailed side view of the energy absorbing device of FIG. 3 A with the buckle anchor pin removed according to an embodiment;

[0061] FIG. 4 is a side perspective view of an energy absorbing device after a crash event according to an embodiment;

[0062] FIG. 5A is a front view of a child seat having an energy absorbing device according to an embodiment;

[0063] FIG. 5B is a cross-sectional view of the child seat of FIG. 5 A according to an embodiment;

[0064] FIG. 6A is a front perspective view of a child seat including a harness assembly in a buckled configuration according to an embodiment;

[0065] FIG. 6B is a front perspective view of the child seat of FIG. 6A with the harness assembly in an unbuckled configuration according to an embodiment;

[0066] FIG. 7 is a detailed cross-sectional view of an energy absorbing device associated with a child seat according to an embodiment;

[0067] FIG. 8A is a perspective view of a cross-section of an energy absorbing device associated with a child seat according to an embodiment;

[0068] FIG. 8B is a cross-sectional view of the energy absorbing device associated with a child seat of FIG. 8 A according to an embodiment;

[0069] FIG. 9A is a cross-sectional view of a seat portion having a buckle position adjuster in a first position according to an embodiment; and

[0070] FIG. 9B is a cross-section view of the seat portion of FIG. 9A having a buckle position adjuster in a second position according to an embodiment.DETAILED DESCRIPTION

[0071] Referring generally to FIGS. 1 A-5B, an example of an energy absorbing device 20 associated with a child seat 100 of a child seat system is illustrated. As shown, the energy absorbing device 20 includes a bracket 22 having at least one arm. In the illustrated, nonlimiting embodiment, the bracket 22 includes a first arm 24 and a second arm 26 in a parallel orientation and separated from one another by a clearance C. The first arm 24 and the second arm 26 may be connected to one another by a connecting member 28. As shown in the FIGS., the connecting member 28 may be integrally formed with both the first arm 24 and the second arm 26. However, embodiments where the connecting member 28 is permanently or removably coupled to at least one of the first arm 24 and the second arm 26 are also contemplated herein

[0072] As shown, a first end 30 of the connecting member 28 may be arranged at first surface 32, such as an upper surface for example, of the first arm 24, and an opposite, second end 34 of the connecting member 28 may be arranged at a first surface 36, such as an upper surface, of the second arm 26. In embodiments where the connecting member 28 is integrally formed with the first arm 24 and the second arm 26, the bracket 22 may be formed from a single planar piece of material, and the first arm 24 and second arm 26 may be bent so as to extend from the connecting member 28 in the same direction. The bracket 22 may be formed from a rigid material, such as metal for example. However, embodiments where the bracket 22 is formed from another suitable material, such as plastic for example are also contemplated herein.

[0073] The first and second arm 24, 26 may have one or more features, such as openings or slots for example, formed therein. In the illustrated, non-limiting embodiment, the first arm 24 includes a first opening 40a and the second arm 26 includes a corresponding first opening 40b in axial alignment with one another. A first anchor pin 42 having an axial length greater than the length of the bracket 22, is insertable through the first opening 40a, 40b of both the first arm 24 and the second arm 26, respectively. The first arm 24 may include a second opening 44a and the second arm 26 may include a corresponding second opening 44b in axial alignment with the second opening 44a of the first arm 24. A second anchor pin 46 having an axial length greater than the length of the bracket 22, is insertable through the second openings 44a, 44b of the first arm 24 and the second arm 26, respectively. In the illustrated, non-limiting embodiment, the first openings 40a, 40b are arranged near respective first ends 48a, 48b of the first arm 24 and the second arm 26, and the second openings 44a, 44b are arranged proximate a center of the first arm 24 and the second arm 26, respectively. However, embodiments wherethe first and second openings 40a, 40b, 44a, 44b are arranged at another position about the first and second arms 24, 26 are also contemplated herein.

[0074] In an embodiment, the first end 48a of the first arm 24 includes an extended region 49a and the first end 48b of the second arm 26 includes a comparable extended region 49b. As shown, the extended region 49a at the first end 48a of the first arm 24 extends beyond the bottom surface of the first arm 24, and the extended region 49b of the second arm 26 extends beyond the bottom surface 52 of the second arm 26. Such a configuration allows for the formation of a mounting slot 54a formed at least partially in the extended region 49a near the first end 48a of the first arm 24 and a corresponding mounting slot 54b formed at least partially in the extended region 49a near the first end 48b of the second arm 26. The mounting slot 54a may extend generally parallel to the first end 48a of the first arm 24 and is vertically offset from the first opening 40a and the mounting slot 54b may extend generally parallel to the first end 48b of the second arm 26 and is vertically offset from the first opening 40b. A mounting pin 56 (FIGS. 7-8B) is receivable within the mounting slots 54a, 54b of the first arm 24 and the second arm 26 when the energy absorbing device is installed about a child seat, as will be described in more detail below.

[0075] An anchor slot 58a may be formed in the first arm 24 at any suitable position. In an embodiment, the anchor slot 58a is positioned near a center of the first arm 24. In such embodiments, the second openings 44a of the first arm 24 may be arranged between the anchor slots 58a and the first ends 48a of the first arm 24. Alternatively, or in addition, an anchor slot 58b may be formed in the second arm 26. In embodiments where the first arm 24 includes anchor slot 58a and the second arm 26 includes anchor slot 58b, the anchor slots 58a, 58b may be aligned with one another and have a substantially identical configuration.

[0076] In the illustrated, non-limiting embodiment, anchor slot 58a of the first arm is arranged at a non-parallel angle relative to the longitudinal axis LI of the first arm 24, and the anchor slot 58b of the second arm 26 is arranged at a non-parallel angle relative to the longitudinal axis L2 of the second arm 26. For example, a distance between the upper surface 32 of the first arm 24 and the anchor slot 58a and a distance between the upper surface 36 of the second arm 26 and the anchor slot 58b decreases in a direction toward the first ends 48a, 48b of the first arm 24 and second arm 26, respectively. A movable component, such as a buckle anchor pin 60, having an axial length greater than the length of the bracket 22, is slidably receivable within the pair of anchor slots 58a, 58b. Accordingly, the movable component 60 is movable along a path of movement defined by each anchor slot 58a, 58b.

[0077] The energy absorbing device 20 additionally includes at least one energy absorbing member 70a, 70b associated with the bracket 22 for example. In the illustrated, nonlimiting embodiment, a first energy absorbing member 70a is associated with the first arm 24 and a second energy absorbing member 70b is associated with the second arm 26. As shown, the first energy absorbing member 70a may be positioned directly adjacent to a surface of the first arm 24, such as an outward facing lateral surface 62 thereof. Similarly, the second energy absorbing member 70b may be positioned directly adjacent to a surface of the second arm 26, such as the outward facing lateral surface 64 thereof. However, embodiments where one or both of the first energy absorbing member 70a and the second energy absorbing member 70b are arranged at opposite, inwardly facing lateral surfaces of a respective first and second arms 24, 26 are also contemplated herein.

[0078] The first and second energy absorbing members 70a, 70b may include substantially identical shapes / configurations. The first energy absorbing member 70a may include a first opening 72a positionable in axial alignment with the first opening 40a formed in the first arm 24 and a second opening 74a positionable in axial alignment with the second opening 44a formed in the first arm 24. The second energy absorbing member 70b may similarly include a first opening 72b positionable in axial alignment with the first opening 40b formed in the second arm 26and a second opening 74b positionable in axial alignment with the second opening 44b formed in the second arm 26. The first anchor pin 42 is extendable through the first openings 72a, 72b of the first and second energy absorbing members 70a, 70b, and the second anchor pin 46 is extendable through the second openings 74a, 74b of the first and second energy absorbing members 70a, 70b. In the illustrated, non-limiting embodiment, the body of each of the first energy absorbing member 70a and the second energy absorbing member 70b is contoured to define a corresponding first opening 72a, 72b. A first region 78a proximate the first end 76a of the first energy absorbing member 70a may be curved about an axis to define a respective first opening 72a and a first region 78b proximate the first end 76b the second energy absorbing member 70b may be curved about an axis to define a first opening 72b. In the illustrated, non-limiting embodiment, each first region 78a, 78b has a curvature of about 270 degrees. However, any degree of curvature that is suitable to define the openings 72a, 72b for receiving the first anchor pin 42 and restrict movement of the energy absorbing member 70a, 70b relative to the first anchor pin 42, such as greater than 180 degrees and less than 360 degrees for example, is contemplated herein.

[0079] Each energy absorbing member 70a, 70b may also include a second region 82a, 82b proximate a second end 80a, 80b thereof. Each of these second regions 82a, 82b has agenerally linear configuration. A central portion 84a, 84b of the body of each energy absorbing member 70a, 70b may have a generally arcuate or curved contour. Each central portion 82a, 82b may have a curvature between 120 degrees and 270 degrees, such as about 180 degrees for example. The radius of curvature may but need not be uniform over each of the central portions 84a, 84b. Further, a thickness of the body of the first energy absorbing member 70a and the second energy absorbing member 70b may vary. As shown, a thickness of the body of each energy absorbing member 70a, 70b may gradually increase from the first regions 78a, 78b toward the second regions 82a, 82b. Further, the thickness at the interface between the central portions 84a, 84b and the second regions 82a, 82b of the body of each energy absorbing member 70a, 70b may be increased such that the second openings 74a, 74b are formed proximate the interface between the central portions 84a, 84b and the second regions 82a, 82b.

[0080] When each of the first energy absorbing member 70a and the second energy absorbing member 70b are mounted to the bracket 22, the second regions 82a, 82b of each energy absorbing member 70a, 70b are located adjacent to the anchor slots 58a, 58b formed in the respective first and second arms 24, 26. In an embodiment, the second region 82a of the energy absorbing member 70a may overlap a portion of the anchor slot 58a. Similarly, the second region 82b of the energy absorbing member 70b may overlap a portion of the anchor slot 58b. In such embodiments, the buckle anchor pin 60 may be engageable with the second ends 80a, 80b of each of the energy absorbing members 70a, 70b. Notches 86a, 86b may also be formed at portion of the second end 80a, 80b of each energy absorbing member 70a, 70b. These notches 86a, 86b may be positioned in overlapping arrangement with respective anchor slots 58a, 58b, such as at upper surfaces 88a, 88b of the second regions 82a, 82b for example. As shown, the notches 86a, 86b may each have a contour such that the buckle anchor pin 60 is receivable within each of the notches 86a, 86b when positioned proximate first ends 90a, 90b of respective anchor slots 58a, 58b.

[0081] The contour of notch 86a formed in the first energy absorbing member 70a and the notch 86b formed in the second energy absorbing member 70b may be operable to selectively restrict movement of the buckle anchor pin 60 relative to the anchor slots 58a, 58b. In the illustrated, non-limiting embodiment, each notch 86a, 86b has a sloped or concave contour designed to restrict movement of the buckle anchor pin 60 when a force acting on the buckle anchor pin 60 is less than or equal to a predetermined threshold. It should be appreciated that the forces applied to the buckle anchor pin 60 such as might occur during normal use of a child seat, for example during buckling or tightening of a harness of the child seat, are less thanthe predetermined threshold. The threshold is instead representative of the approximate forces that may occur during a vehicle crash.

[0082] At least a portion of the first energy absorbing member 70a and the second energy absorbing member 70b may be deformable to absorb energy from a force applied thereto. The deformable section of each energy absorbing member 70a, 70b may be configured to resist rotation of the energy absorbing member 70a, 70b. In an embodiment, the deformable section of each energy absorbing member 70a, 70b includes at least part of the central portions 74a, 74b of each energy absorbing member 70a, 70b.

[0083] With continued reference to FIGS. 1-4, when a force exceeding the predetermined threshold is applied to the buckle anchor pin 60, the buckle anchor pin 60 will translate within the anchor slots 58a, 58b toward the second ends 92a, 92b thereof (see FIG. 4). The buckle anchor pin 60 will transmit this force to the contoured surfaces of the notches 86a, 86b. This force will cause the second regions 82a, 82b of the energy absorbing members to rotate, allowing the buckle anchor pin 60 to move out of engagement with the notches 86a, 86b and into contact with the upper surfaces 88a, 88b of the second regions 82a, 82b of both energy absorbing members 70a, 70b. As the buckle anchor pin 60 moves within the anchor slots 58a, 58b, the buckle anchor pin 60 applies a force to the upper surfaces 88a, 88b of each second region 82a, 82b. This force causes the second regions 82a, 82b to further pivot or rotate about the anchor pin 46, out of the path of movement defined by the anchor slots 58a, 58b. The rotation of the second regions 82a, 82b in response to movement of the buckle anchor pin 60 causes general deformation of the deformable sections of each body, such as at the central portions 84a, 84b proximate the respective interfaces with the second regions 82a, 82b. In an embodiment, the rotation of the second regions 82a, 82b in response to the movement of the buckle anchor pin 60 along the upper surfaces 88a, 88b results in consistent and progressive flexing at the deformable section of each energy absorbing member 70a, 70b.

[0084] In an embodiment, each of the first and second energy absorbing members 70a, 70b may be a resilient component such that upon removal of the force from the buckle anchor pin 60, the energy absorbing members 70a, 70b may return to a normal position. However, embodiments where the energy absorbing members 70a, 70b are plastically deformed in response to application of a force to the buckle anchor pin 60 exceeding the threshold are also contemplated herein. In other embodiments, the energy absorbing members 70a, 70b may be broken (e.g., fractured, crushed) in response to application of a force to the buckle anchor pin 60 exceeding the threshold, for example by being formed as a block of expanded polypropylene foam (EPP). In an embodiment, the energy absorbing members 70a, 70b are formed from asheet metal material. In a certain embodiment to simplify manufacturing and lower costs, the energy absorbing members 70a, 70b are formed (e.g., stamped) from the same raw material as the bracket 22, for example both parts being cut out from a sheet of steel, aluminum, or other metal.

[0085] Although the energy absorbing device 20 is illustrated and described herein as having two arms 24, 26 and a corresponding energy absorbing member 70a. 70b associated with each arm 24, 26, it should be understood that embodiments of the energy absorbing device 20 including only a single arm and a single energy absorbing member associated therewith are also within the scope of the disclosure.

[0086] With reference now to FIGS. 5A-8B, an example of the energy absorbing device 20 integrated into a child seat 100 of a child seat system is illustrated in more detail. As shown, the child seat 100 may include a seat shell 102 having a seat portion 104 and a seat back or upright portion 106 arranged at an angle relative to the seat portion 104. The seat portion 104 and the seat back portion 106 may be detachably coupled, or alternatively, may be permanently coupled. In the illustrated, non-limiting embodiment, the seat portion 104 and the seat back portion 106 are integrally formed as a single unitary body.

[0087] As shown, the seat back portion 106 of the child seat 100 includes an upright support surface 110 generally facing forward and that extends from a first end or top 112 to a second, opposite end or bottom of the seat back portion 106. A first upright side member 116 may be arranged at a first side 118 of the upright support surface 110, and a second upright side member 120 may be arranged at a second, opposite side 122 of the upright support surface 110. The first and second upright side members 116, 120 therefore form the left side and the right side of the seat back portion 106, respectively. As shown, the first and second upright side members 116, 120 extend forward from the upright support surface 110. The first and second upright side members 116, 120 may extend generally orthogonally to the upright support surface 110 or alternatively, may extend therefrom at another angle, such as an angle greater than 90° for example. Accordingly, the upright support surface 110 and the first and second upright side members 116, 120 define a backrest region or upright support cavity 124 within which an upper body of a child is received.

[0088] In the illustrated, non-limiting embodiment, the seat back portion 106 of the child seat 100 includes a headrest 126. The headrest 126 is attached to or integral with the seat back portion 106. The headrest 126 may be stationary or in some embodiments, may be configured to move relative to the upright support surface 110. For example, the headrest 126 may be configured to translate relative to the upright support surface 110 between a retractedposition and an extended position, allowing for adjustment based on the size of the child positioned within the child seat 100.

[0089] The seat portion 104 of the seat shell 102 includes a seat support surface 130 facing generally upwardly and that extends from a first end or front 132 to a second end or back of the seat portion 104. A first seat side member 136 may be arranged at a first side 138 of the seat support surface 130 and a second seat side member 140 may be arranged at a second, opposite side of the seat support surface 130. The first seat side member 136 and the second seat side member 140 extend upwardly and from the left side and the right side of the seat portion. The seat support surface 130 and the first and second seat side members 136, 140 in combination define a region 144 within which at least part of a lower body of a child may be received.

[0090] As shown, the first and second seat side members 136, 140 extend at an angle from the seat support surface 130. The angle of the first seat side member 136 relative to the seat support surface 130 may but need not be the same as the angle of the first upright side member 116 relative to the upright support surface 110. Similarly, the angle of the second seat side member 140 relative to the seat support surface 130 may but need not be the same as the angle of the second upright side member 120 relative to the upright support surface 110. In an embodiment, the first upright side member 116 and the first seat side member 136 are integrally formed and the second upright side member 120 and the second seat side member 140 are integrally formed. Although not shown, the child seat 100 may be permanently or removably connectable to a support base. The support base (not shown) may be used to detachably mount the child seat to a vehicle seat.

[0091] The child seat 100 may additionally include a harness assembly 150 operable to secure a child within the child seat 100. An example of the harness assembly 150 is illustrated in FIGS.6A and 6B. As shown, the harness assembly 150 includes a first torso strap 152, a second torso strap 154, and a crotch strap 156. The first torso strap 152 and the second torso strap 154 each include a first buckle portion 158a, 158b such as a male buckle portion for example slidably connected thereto. In an embodiment, a portion of each of the first torso strap 152 and second torso strap 154 extending from the first buckle portions 158a, 158b toward first ends of the torso straps 152, 154 arranged near upper portion of a child seat 100 functions as a shoulder strap. In such embodiments, a portion of each of first torso strap 152 and the second torso strap 154 extending from the first buckle portions 158a, 158b toward second ends of the torso straps 152, 154 may function as a waist strap. The crotch strap 156 includes a second buckle portion 160, such as a female buckle portion for example, and the first buckle portions158a, 158b are connectable to, for example insertable into, the second buckle portion 160. The second buckle portion 160 affixed to the crotch strap 156 may also be referred to herein as a crotch buckle. It should be understood that the illustrated harness assembly 150 is intended as an example only and that other harness assembly configurations are also contemplated herein. Although the energy absorbing device 20 is illustrated as anchoring the crotch strap 156, similar structures and / or principles may be applicable in anchoring the torso straps 152, 154 at their upper and / or lower anchoring locations.

[0092] An opening 162 may be formed in the seat portion 104 of the child seat 100, such as in the seat support surface 130 for example, to receive the crotch strap 156. In an embodiment, the opening 162 defines a single position at which the crotch strap 156 is arrangeable relative to the child seat 100. In other embodiments, the opening 162 may be configured to define a plurality of positions at which the crotch strap 156 is arrangeable, such as a front position and a back position for example.

[0093] With continued reference to FIGS. 5A-6B, and further reference to FIGS. 7-8B, the energy absorbing device 20 may be associated with a portion of the harness assembly 150. In the illustrated, non-limiting embodiment, the energy absorbing device 20 is arranged at the seat portion 104 of the child seat 100, such as between the seat shell 25 and the seat support surface 130 and proximate the opening 162 configured to receive the crotch strap 156 for example. As shown, a portion of the crotch strap 156, such as the end 164 opposite the crotch buckle 160 for example, may be affixed to the buckle anchor pin 60. During a crash event, such as a front impact collision for example, a high load is applied to the crotch buckle 160 as it restrains the seat occupant. The crotch strap 156 is therefore operable to transmit this load to the movable buckle anchor pin 60.

[0094] During a frontal crash, a force is applied to the child seat in a first direction. Because the harness restrains the movement of the occupant in response to this force, the occupant applies a force to the harness in a second, opposite direction. In the illustrated, nonlimiting embodiment, the movable component 60 of the energy absorbing device 20 is movable in the same first direction as the force applied to the child seat when the occupant applies a force to the harness in the second direction. Accordingly, a direction of the force applied to the child seat may be the same as the direction of movement of the movable component 60 along its path of movement in response to application of the force. The direction of the force may also be parallel to a portion of the energy absorbing members 70a, 70b, such as the second regions 82a, 82b thereof.

[0095] When the force applied to the crotch buckle 160, and therefore to the buckle anchor pin 60 by the crotch strap 156, exceeds a predetermined threshold of the energy absorbing device 20, the force acting on the buckle anchor pin 60 will cause the buckle anchor pin 60 to translate within the anchor slots 58a, 58b of each of the first and second arms 24, 26 of the bracket 22. As previously described, this force will cause the second region 82a, 82b of both the first energy absorbing member 70a and the second energy absorbing member 70b to rotate downwardly away from the anchor slots 58a, 58b, despite the resistance of the central portions 84a, 84b of the energy absorbing members 70a, 70b against this the rotation. As the buckle anchor pin 60 translates within each anchor slot 58a, 58b from the first ends 90a, 90b towards the second ends 92a, 92b thereof, the buckle anchor pin 60 will engage the upper surfaces 88a, 88b of the second regions 82a, 82b of each respective energy absorbing member 70a, 70b. This movement of the buckle anchor pin 60 along the upper surfaces 88a, 88b of each second region 82a, 82b causes consistent, progressive flexing of the deformable section of the energy absorbing members 70a, 70b, such as the central regions 84a, 84b for example. The movement of the second regions 82a, 82b, and the resulting deformation of the energy absorbing members 70a, 70b, is configured to absorb some of the energy from the impact, thereby preventing transmission of this energy to the occupant of the child seat 100.

[0096] With reference to FIGS. 9 A and 9B, in an embodiment, the child seat 100 includes a buckle position adjuster 170 mounted proximate the seat support surface 130. The buckle position adjuster 170 may be movable relative to the child seat 100, and also the energy absorbing device 20, between a first position (FIG. 9A) and a second position (FIG. 9B). In the illustrated, non-limiting embodiment, the first position is associated with a rearward position of the crotch buckle 160, and the second position is associated with a forward position of the crotch buckle 160. It should be appreciated that the buckle position adjuster 170 may be positionable at one or more intermediate positions between the first position and the second position. As shown, the opening 162 through with the crotch strap 156 extends may be formed in the buckle position adjuster 170. Accordingly, while an end of the crotch strap 156 remains affixed to the buckle anchor pin 60, a portion of the crotch strap 156 extendable through the opening 162 is movable with the buckle position adjuster 170 relative to the child seat 100.

[0097] Due to the movement of the buckle position adjuster 170, the crotch strap 156 is positionable to apply a force to the buckle anchor pin 60 in a first direction, or alternatively, in a second direction. For example, when the buckle position adjuster 170 is in the rearward position, the crotch buckle 160 is arranged between the buckle anchor pin 60 and the upright support surface 110. The crotch buckle 160 and buckle position adjuster 170 may be consideredto be in a “first mode” when the crotch buckle 160 is located at any position rearward of the buckle anchor pin 60. At such a position, during a frontal impact, the crotch buckle 160 is operable to apply a force to the buckle anchor pin 60 toward the energy absorbing members 70a, 70b, as previously described herein. When the buckle position adjuster 170 is in the forward position, the crotch buckle 160 is forward of the buckle anchor pin 60, such as between the buckle anchor pin 60 and the front 132 of the seat portion 104. The crotch buckle 160 and buckle position adjuster 170 may be considered to be in a “second mode” when the crotch buckle 160 is located at any position forward of the buckle anchor pin 60. At such a position, the crotch buckle 160 is operable to apply a force to the buckle anchor pin 60 toward the front 132 of the seat portion 104, in a direction away from the energy absorbing members 70a, 70b. Accordingly, the energy absorbing members 70a, 70b are not activated in response to a force when the crotch buckle 160 and the opening 162 associated therewith are forward of the buckle anchor pin 60. The energy absorbing members 70a, 70b are therefore operable to absorb energy only when the crotch buckle 160 and buckle position adjuster 170 is in the first mode and not when the crotch buckle 160 and buckle position adjuster 170 are the second mode. Further, because the buckle anchor pin 60 is already engaged with the first ends 90a, 90b of the respective anchor slots 58a, 58b, when such a force is applied to the crotch buckle 160, the length of the crotch strap 156 does not increase.

[0098] The term “about” is intended to include the degree of error associated with measurement of the particular quantity based upon the equipment available at the time of filing the application. As used herein, the term “substantially” and derivatives thereof, and words of similar import, when used to describe a size, shape, orientation, distance, spatial relationship, or other parameter includes the stated size, shape, orientation, distance, spatial relationship, or other parameter, and can also include a range up to 10% more and up to 10% less than the stated parameter, including 5% more and 5% less, including 3% more and 3% less, including 1% more and 1% less.

[0099] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. As used herein, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and / or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, element components, and / or groups thereof.

[0100] While the present disclosure has been described with reference to an exemplary embodiment or embodiments, it will be understood by those skilled in the art that various changes may be made, and equivalents may be substituted for elements thereof without departing from the scope of the present disclosure. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the present disclosure without departing from the essential scope thereof. Therefore, it is intended that the present disclosure not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this present disclosure, but that the present disclosure will include all embodiments falling within the scope of the claims.

Claims

What is Claimed:

1. A child seat system comprising: a seat portion; a crotch buckle attached to a crotch strap, the crotch strap being coupled to the seat portion; an energy absorbing device, the crotch buckle being affixed to the seat portion by the energy absorbing device, wherein the energy absorbing device includes: a movable component coupled to the crotch strap; at least one energy absorbing member engageable with the movable component to restrict movement of the movable component; and wherein the movable component is movable relative to the seat portion during a crash event.

2. The child seat system of claim 1, wherein the at least one energy absorbing member is deformable in response to the movement of the movable component relative to the seat portion.

3. The child seat system of claim 1, wherein the at least one energy absorbing member is a resilient component.

4. The child seat system of claim 1, wherein the at least one energy absorbing member is formed from a sheet metal material.

5. The child seat system of claim 1, wherein an end of the at least one energy absorbing member is engaged with the movable component to restrict movement of the movable component relative to the seat portion.

6. The child seat system of claim 5, wherein the end of the at least one energy absorbing member includes a notch and engagement between the movable component and the notch restricts movement of the movable component when a force applied to the movable component is less than a threshold.

7. The child seat system of claim 6, wherein the notch is contoured such that the movable component is movable out of engagement with the notch when the force applied to the movable component is greater than the threshold.

8. The child seat system of claim 1, wherein the at least one energy absorbing member has a first region, a second region, and a central region disposed between the first region and the second region, the movable component being engageable with a surface of the second region as the movable component moves relative to the seat portion.

9. The child seat system of claim 8, wherein the second region of the at least one energy absorbing member is rotatable as the movable component moves relative to the seat portion.

10. The child seat system of claim 9, wherein a portion of the at least one energy absorbing member is deformable in response to rotation of the second region.

11. The child seat system of claim 9, wherein the central region of the at least one energy absorbing member is deformable in response to rotation of the second region.

12. The child seat system of claim 1, wherein the energy absorbing device further comprises a bracket including at least one arm, the at least one energy absorbing member being fixedly mounted to the at least one arm.

13. The child seat system of claim 12, wherein the at least one arm includes an anchor slot, the movable component being slidably mounted within the anchor slot.

14. The child seat system of claim 13, wherein the movable component is a pin.

15. A child seat system comprising: a body mountable to a vehicle seat; a movable component mounted to the body; a buckle coupled to movable component; an energy absorbing device associated with the body, the energy absorbing device including: at least one energy absorbing member operable to selectively restrict movement of the movable component; and wherein the movable component is movable in a same direction as a force applied to the child seat in response to a crash event.

16. The child seat of claim 15, wherein the direction of the force applied to the child seat in response to the crash event is toward the at least one energy absorbing member.

17. The child seat of claim 15, wherein the force applied to the child seat in response to the crash event is oriented parallel to a portion of the at least one energy absorbing member.

18. The child seat of claim 17, wherein the force applied to the child seat in response to the crash event is oriented parallel to the portion of the at least one energy absorbing member engageable by the movable component.

19. The child seat of claim 15, wherein the movable component is not movable in response to a force applied in a direction away from the at least one energy absorbing member.

20. The child seat of claim 15, wherein the energy absorbing device further comprises a bracket including at least one arm, the at least one energy absorbing member being fixedly mounted to the at least one arm.

21. The child seat of claim 20, wherein the at least one arm includes an anchor slot and the movable component is slidably mounted within the anchor slot, the movable component being slidable within the anchor slot in response to the crash event.

22. The child seat of claim 21, wherein the movable component is a pin.

23. The child seat of claim 15, wherein the at least one energy absorbing member is deformable in response to the movement of the movable component.

24. The child seat of claim 15, wherein the at least one energy absorbing member is a resilient component.

25. The child seat of claim 15, wherein the at least one energy absorbing member is formed from a sheet metal material.

26. The child seat of claim 15, wherein an end of the at least one energy absorbing member is engaged with the movable component to restrict movement of the movable component.

27. The child seat of claim 26, wherein the end of the at least one energy absorbing member includes a notch and engagement between the movable component and the notch restricts movement of the movable component when the force applied to the child seat in response to the crash event is less than a threshold.

28. The child seat of claim 27, wherein the notch is contoured such that the movable component is movable out of engagement with the notch when the force applied to the movable component in response to the crash event is greater than the threshold.

29. An energy absorbing device associated with a child seat, the energy absorbing device comprising a movable component operably coupled to a harness of the child seat, the movable component being movable along a path of movement; at least one energy absorbing member positionable adjacent to the movable component and at least partially within the path of movement such that the at least one energy absorbing member selectively restricts movement of the movable component; and wherein the at least one energy absorbing member is movable out of the path of movement of the movable component when a force acting on the harness exceeds a threshold.

30. The energy absorbing device of claim 29, wherein the at least one energy absorbing member within the path of movement is engageable with the movable component.

31. The energy absorbing device of claim 30, wherein a notch formed in the at least one energy absorbing member is engageable with the movable component to restrict movement of the movable component.

32. The energy absorbing device of claim 29, wherein the at least one energy absorbing member is rotatable out of the path of movement in response to the movement of the movable component along the path of movement.

33. The energy absorbing device of claim 29, wherein the at least one energy absorbing member is deformable in response to the movement of the movable component along the path of movement.

34. The energy absorbing device of claim 29, wherein the movable component is not movable along the path of movement when the force acting on the harness is less than the threshold.

35. The energy absorbing device of claim 29, wherein the at least one energy absorbing member is a resilient component.

36. The energy absorbing device of claim 29, wherein the at least one energy absorbing member is formed from a sheet metal material.

37. The energy absorbing device of claim 29, wherein the energy absorbing device further comprises a bracket including at least one arm, the at least one energy absorbing member being fixedly mounted to the at least one arm.

38. The energy absorbing device of claim 37, wherein the at least one arm includes an anchor slot, the movable component being slidably mounted within the anchor slot.

39. The energy absorbing device of claim 29, wherein the movable component is a pin.

40. A child seat system comprising: a seat portion; an energy absorbing device associated with the seat portion; and a crotch buckle affixed to the energy absorbing device, the crotch buckle being transformable between a first mode and a second mode; wherein the energy absorbing device is operable to absorb energy applied to the crotch buckle only when the crotch buckle is in the first mode.

41. The child seat system of claim 40, wherein the energy absorbing device includes at least one energy absorbing member, and a movable component, the crotch strap being affixed to the movable component.

42. The child seat system of claim 41, wherein in the first mode, the crotch buckle is operable to apply a force to the movable component toward the at least one energy absorbing member.

43. The child seat system of claim 41, wherein in the second mode, the crotch buckle is operable to apply a force to the movable component away from the at least one energy absorbing member.

44. The child seat system of claim 41, wherein the crotch buckle is in the first mode when the crotch buckle is positioned rearward of the movable component.

45. The child seat system of claim 41, wherein the crotch buckle is in the second mode when the crotch buckle is positioned forward of the movable component.

46. The child seat system of claim 41, further comprising a buckle position adjuster positioned proximate a seat support surface of the seat portion, the buckle position adjuster being movable between a first position and a second position.

47. The child seat system of claim 46, wherein the crotch buckle is in the first mode when the buckle position adjuster is in the first position and the crotch buckle is in the second mode when the buckle position adjuster is in the second position.

48. The child seat system of claim 41, wherein the energy absorbing device further comprises a bracket including at least one arm, the at least one energy absorbing member being fixedly mounted to the at least one arm.

49. The child seat system of claim 48, wherein the at least one arm includes an anchor slot and the movable component is slidably mounted within the anchor slot, the movable component being slidable within the anchor slot in response to the crash event when the crotch buckle is in the first mode.

50. The child seat system of claim 41, wherein the at least one energy absorbing member is deformable in response to engagement with the movable component.

51. The child seat system of claim 41, wherein the at least one energy absorbing member is a resilient component.

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