Foldable stroller and fold interlock mechanism
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62B-007/00
출원번호
US-0410243
(2009-03-24)
등록번호
US-8474854
(2013-07-02)
발명자
/ 주소
Dean, Roy L.
Ahnert, Stephen
Pike, Robert
Lamos, Damaso A.
Newhard, Daniel
Grintz, Todd
McCorkel, Branden
출원인 / 주소
Graco Children's Products Inc.
대리인 / 주소
Lempia Summerfield Katz LLC
인용정보
피인용 횟수 :
9인용 특허 :
19
초록▼
A foldable stroller has a frame assembly with a frame fold joint and is reconfigurable between an in-use configuration and a folded configuration. A child support structure is repositionable between a usable state on the frame assembly in the in-use configuration and an unusable state not suitable t
A foldable stroller has a frame assembly with a frame fold joint and is reconfigurable between an in-use configuration and a folded configuration. A child support structure is repositionable between a usable state on the frame assembly in the in-use configuration and an unusable state not suitable to support a child on the frame assembly. An interlock mechanism cooperates with the child support structure and is movable between a locked state preventing the frame assembly from being folded from the in-use configuration to the folded configuration and an unlocked state permitting the frame assembly to be folded. With the frame assembly in the in-use configuration and the child support structure on the frame assembly in the usable state, the interlock mechanism is retained in the locked state. The interlock mechanism is unlocked when the child support structure is moved to the unusable state.
대표청구항▼
1. A foldable stroller comprising: a frame assembly having a frame fold joint and being reconfigurable between a set-up configuration and a folded configuration;a fold latch on the frame fold joint movable from a latched position with the frame assembly in the in-use configuration to a released posi
1. A foldable stroller comprising: a frame assembly having a frame fold joint and being reconfigurable between a set-up configuration and a folded configuration;a fold latch on the frame fold joint movable from a latched position with the frame assembly in the in-use configuration to a released position, the fold latch having a notch;a mounting point on the frame assembly defined by a connector that has a lock pin parallel to and offset from a frame pivot axis, the lock pin being spring biased to project from the connector;a child support structure having a mount attachable to the frame assembly at the mounting point and being detachable from the mounting point and removable from the frame assembly, the mount including a mount surface; andan interlock mechanism coupled to the mounting point and movable between a locked state locking the frame assembly in the set-up configuration and an unlocked state permitting the fold latch to move to the released position thereby permitting the frame assembly to be reconfigured to the folded configuration,wherein, with the frame assembly in the set-up configuration and the child support structure attached to the mounting point, the mount is coupled with the connector and the mount surface bears against the lock pin pushing the lock pin into the notch preventing actuation of the fold latch and thereby the interlock mechanism is retained in the locked state, andwherein, to fold the frame assembly, the child support structure is first detached from the mounting point and the mount surface releases the lock pin from the notch, which moves the interlock mechanism to the unlocked and permits actuation of the fold latch thereby allowing the stroller to be moved to the folded configuration. 2. A foldable stroller according to claim 1, wherein the child support structure is a seat assembly and wherein the interlock mechanism is unlocked when the seat assembly is detached from the mounting point and removed from the stroller. 3. A foldable stroller according to claim 1, wherein, with the frame assembly in the set-up configuration and the child support structure attached to the mounting point, the lock pin is pushed into the connector in the locked state. 4. A foldable stroller according to claim 3, wherein, upon removal of the child support structure from the frame assembly, a contact end of the lock pin projects outward from the connector in the unlocked state, the lock pin having a locking end opposite the contact end. 5. A foldable stroller according to claim 1, wherein the interlock mechanism is retained in the unlocked state unless the frame assembly is in the set-up configuration. 6. A foldable stroller according to claim 5, wherein the interlock mechanism in the unlocked state prevents attaching the child support structure to the mounting point. 7. A foldable stroller comprising: a frame assembly having a frame fold joint and a seat connector defining a mounting point and being reconfigurable between an in-use configuration and a folded configuration, the seat connector including a lock pin parallel to and offset from a frame pivot axis, the lock pin having a contact end that protrudes from the seat connector in an unlocked state and a locking end, the lock pin being biased by a spring in a direction parallel to the frame pivot axis to project from the seat connector;a fold latch at the frame fold joint, the fold latch having a notch and being movable between a latched position with the frame assembly in the in-use configuration and a released position;a seat assembly on the frame assembly including a seat mount with a mount surface shaped to engage the seat connector and having a movable part that is movable relative to the frame assembly between an in-use position and a folded position on the frame assembly rendering the seat assembly unsuitable to support a child; andan interlock mechanism movable between a locked state with the fold latch in the latched position locking the frame assembly in the in-use configuration and an unlocked state with the fold latch in the latched position permitting the frame assembly to fold to the folded configuration,wherein, with the frame assembly in the in-use configuration and the seat assembly in the in-use position, the seat mount is coupled to the seat connector and the mount surface bears against the contact end of the lock pin and retains the locking end against the bias of the spring in the notch and the interlock mechanism is retained in the locked state thereby retaining the frame assembly in the in-use position, andwherein the interlock mechanism is unlocked by first moving the movable part to the folded position, allowing the bias of the spring to move the locking end out of the notch, whereby the interlock mechanism is moved to the unlocked state so that the frame assembly is movable to the folded configuration. 8. A foldable stroller according to claim 7, wherein the seat assembly has a seat back part and a seat bottom part, the seat back part being pivotable relative to the seat bottom part from the in-use position to the folded position. 9. A foldable stroller according to claim 7, wherein the movable part pivots relative to the frame assembly from the in-use position to the folded position. 10. A foldable stroller according to claim 7, wherein the interlock mechanism comprises: an interlock plate carried on the seat assembly and rotatable about a pivot axis; andan opening in the interlock plate that rotates with the interlock plate from a locking orientation to an unlocking orientation as the movable part is moved to the folded position. 11. A foldable stroller according to claim 10, wherein the lock pin is arranged to bear against the interlock plate and lock the frame fold joint in the locked state and to move into the opening thereby releasing the frame fold joint in the unlocked state. 12. A foldable stroller according to claim 7, wherein the interlock mechanism in the unlocked state retains the seat assembly in the folded position. 13. A foldable stroller according to claim 12, wherein the interlock mechanism is in the unlocked state unless the frame assembly is in the in-use configuration and the frame fold joint is latched.
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