MULTI-PIVOT LATCH ASSEMBLIES

• US 20090241305A1
• Filed: 03/31/2008
• Published: 10/01/2009
• Est. Priority Date: 03/31/2008
• Status: Active Grant

• Current Assignee: Shield Restraint Systems, Inc. (Transdigm Group Incorporated)
• Original Assignee: Amsafe Commercial Products, Inc. (Transdigm Group Incorporated)
• Inventors: Buckingham, Fred
• Granted Patent: US 7,918,001 B2
• Time in Patent Office: Days
• US Class Current: 24/599.100
• CPC Class Codes: B60N 2/2806 for securing the child seat to the vehicle
• CPC Class Codes: B60N 2/2863 backward facing
• CPC Class Codes: B60N 2/2872 provided with side rests
• CPC Class Codes: B60N 2/2887 Fixation to a transversal anchorage bar, e.g. isofix
• CPC Class Codes: B60N 2/2893 coupled to the seat sub-frame
• CPC Class Codes: F16B 45/029 the position-locking means being slidably mounted
• CPC Class Codes: F16B 45/035 the hook forming a loop or ring when interlocked with the closing member, i.e. the entire structure of the hook being loop shaped
• CPC Class Codes: Y10T 24/45319 Pivotally connected gate
• CPC Class Codes: Y10T 24/4533 Gate also slides relative to pivot

Abstract

Multi pivot latch assemblies for releasably engaging anchors and other attach points in vehicles are disclosed herein. A latch assembly configured in accordance with one embodiment of the disclosure includes a latch and an actuator, each of which is movably coupled to a frame. In operation, movement of the actuator from a locked position toward an unlocked position causes the latch to rotate from a first position to a second position about a first pivot point, and from the second position toward the third position about a second pivot point to open the latch assembly and release the anchor.

Claims

1. A latch assembly for releasably engaging an anchor in a vehicle, the latch assembly comprising:

a frame;

a latch movably coupled to the frame, wherein the latch is rotatable from a first latch position to a second latch position about a first pivot point, and wherein the latch is further rotatable from the second latch position to a third latch position about a second pivot point different from the first pivot point; and

an actuator movably coupled to the frame, wherein movement of the actuator from a first actuator position toward a second actuator position rotates the latch from the first latch position to the second latch position about the first pivot point, and from the second latch position to the third latch position about the second pivot point.

2. The latch assembly of claim 1:

wherein the frame includes a first opening and a second opening; and

wherein the latch includes a first guide feature and a second guide feature, wherein the first guide feature is movably received in the first opening of the frame, and wherein the second guide feature is movably received in the second opening of the frame.

3. The latch assembly of claim 2 wherein the first opening has a generally “

V”

shape and the second opening has a generally linear shape.

4. The latch assembly of claim 1:

wherein the frame includes a first opening and a second opening, wherein the first opening has a generally “

V”

shape and the second opening has a generally linear shape; and

wherein the latch includes a first guide pin and a second guide pin fixedly attached to the latch, wherein the first guide pin moves through the first opening and the second guide pin moves through the second opening during movement of the actuator.

5. The latch assembly of claim 1 wherein the frame includes a first jaw and the latch includes a second jaw, and wherein the anchor is retained between the first and second jaws when the latch is in the first latch position.

6. The latch assembly of claim 5 wherein the anchor is retained between the first and second jaws when the latch is in the second latch position, and wherein the second jaw is spaced apart from the first jaw to release the anchor when the latch is in the third latch position.

7. The latch assembly of claim 1 wherein the latch includes at least one guide feature projecting therefrom, and wherein the second pivot point is positioned at least proximate to the guide feature.

8. The latch assembly of claim 1:

wherein the latch includes a guide feature projecting therefrom; and

wherein the actuator includes an end portion having an abutment surface that cooperates with the guide feature during movement of the actuator.

9. The latch assembly of claim 1 wherein the actuator includes:

a proximal end portion having a channel extending therethrough;

a medial portion extending from the proximal end portion, wherein the medial end portion has a biasing member cavity extending therethrough and intersecting the channel; and

a distal end portion extending from the medial portion, wherein the distal end portion has a generally hook shape.

10. A latch assembly for releasably engaging an anchor in a vehicle, the latch assembly comprising:

a frame having a first opening and a second opening;

a latch having a jaw portion that receives the anchor, wherein the latch further includes a first guide feature movably received in the first opening of the frame and a second guide feature moveably received in the second opening of the frame; and

an actuator movable relative to the frame, wherein movement of the actuator from a locked position toward an intermediate position pivots the latch about the anchor, and wherein continued movement of the actuator from the intermediate position toward an unlocked position pivots the latch about the second guide feature and releases the anchor from the jaw portion of the latch.

11. The latch assembly of claim 10 wherein the first opening is a first slot having a generally “

V”

shape, and wherein the second opening is a second slot having a generally linear shape.

12. The latch assembly of claim 11 wherein the second opening has a pivot surface, and wherein the second guide feature contacts the pivot surface when the latch pivots about the second guide feature.

13. The latch assembly of claim 10 wherein the first guide feature moves in a first direction in the first opening and the second guide feature moves in a second direction in the second opening when the latch pivots about the anchor, and wherein the first guide feature moves in a third direction in the first opening when the latch pivots about the second guide feature.

14. The latch assembly of claim 10 wherein the frame includes a stop member and the actuator includes a cavity, and wherein the latch assembly further comprises a biasing member positioned in the cavity of the actuator, wherein the biasing member urges the actuator away from the stop member toward the locked position.

15. The latch assembly of claim 10 wherein the actuator includes a channel extending longitudinally through a proximal end portion of the actuator, and wherein the frame is at least partially received within the channel.

16. The latch assembly of claim 10:

wherein the first opening has a generally “

V”

shape and the second opening has a generally linear shape;

wherein the first guide feature is a first pin fixedly attached to the latch, wherein the first pin cooperates with an abutment surface of the actuator;

wherein the second guide feature is a second pin fixedly attached to the latch, wherein the second pin contacts a pivot surface of the frame during at least a portion of movement of the actuator; and

wherein the first pivot point is at least proximate to the anchor, and the second pivot point is at least proximate to the second pin.

17. A latch system for releasably engaging an anchor in a vehicle, the latch system comprising:

a frame having an end portion for coupling to a web;

a latch movably coupled to the frame;

first means for pivoting the latch relative to the frame and about a first pivot point; and

second means for pivoting the latch relative to the frame and about a second pivot point, different from the first pivot point, to release the latch from the anchor.

18. The latch system of claim 17 wherein the first means includes a guide feature projecting from the latch that cooperates with an abutment surface of the actuator.

19. The latch system of claim 17 wherein the second means includes a guide feature projecting from the latch that cooperates with a pivot surface of the frame.

20. The latch assembly of claim 17:

wherein the first means includes a first guide feature projecting from the latch and movably received in a first opening in the frame;

wherein the second means includes a second guide feature projecting from the latch and movably received in a second opening in the frame; and

wherein the first pivot point is positioned at least proximate to the anchor and the second pivot point is position at least proximate to the second guide feature.