Compact foldable stroller with one-handed fold control
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62B-007/10
B62B-007/08
B62B-007/06
출원번호
US-0594399
(2015-01-12)
등록번호
US-9561816
(2017-02-07)
발명자
/ 주소
Dowd, Paul
Miller, Christopher D
Brewin, Joseph F
출원인 / 주소
Dorel Juvenile Group, Inc.
대리인 / 주소
Barnes & Thornburg LLP
인용정보
피인용 횟수 :
2인용 특허 :
34
초록
A compact collapsible stroller in accordance with the present disclosure includes a mobile cart and a seat coupled to the mobile cart. The mobile cart includes a rolling base and a foldable frame that fold inwardly and outwardly from the rolling base.
대표청구항▼
1. A mobile cart adapted for use in a stroller, the mobile cart comprising a rolling base including a left wheeled leg and a right wheeled leg,a foldable frame including a base stabilizer coupled to the rolling base to pivot about a frame axis and a base pusher coupled to the rolling base to pivot a
1. A mobile cart adapted for use in a stroller, the mobile cart comprising a rolling base including a left wheeled leg and a right wheeled leg,a foldable frame including a base stabilizer coupled to the rolling base to pivot about a frame axis and a base pusher coupled to the rolling base to pivot about a pusher axis, anda frame-motion controller adapted to provide fold means for releasing the foldable frame to move from a folded-out position in which the base stabilizer and the base pusher extend away from the rolling base to support a child sitting on a seat mounted to the mobile cart when the mobile cart is in use to a folded-in position in which the base stabilizer and the base pusher extend along the rolling base reducing the footprint of the mobile cart to allow storage of the mobile cart in response to a user lifting upwardly with one hand on a fold handle included in the frame-motion controller and for coordinating movement of the base stabilizer included in the foldable frame and the base pusher included in the foldable frame as they move from the folded-out position to the folded-in position in response to continued upward lifting of the fold handle with one hand by a user that causes a gravitational force to pull the base stabilizer and the base pusher of the foldable frame toward the folded-in position so that a user can move the foldable frame from the folded-out position to the folded-in position for storage using only a first hand freeing a second hand to carry a child, wherein the frame-motion controller includes a left pivot lock coupled to the left wheeled leg along a left side of the rolling base, a right pivot lock coupled to the right wheeled leg along a right side of the rolling base, and the fold handle that interconnects the left pivot lock and the right pivot lock,wherein each of the left pivot lock and the right pivot lock includes a motion blocker coupled to the rolling base to slide relative to the rolling base from a locked position arranged to block the base stabilizer included in the foldable frame and the base pusher included in the foldable frame from rotation relative to the rolling base when the foldable frame is in the folded-out position to an unlocked position arranged to allow the base stabilizer included in the foldable frame and the base pusher included in the foldable frame to rotate relative to the rolling base when the foldable frame is in the folded-out position, andwherein the base stabilizer includes a stabilizer frame member, a left pivot hub coupled to the stabilizer frame member, and a right pivot hub coupled to the stabilizer frame member, each of the left and the right pivot hubs is formed to include a stabilizer frame receiver that receives a portion of the stabilizer frame member to couple the left and the right pivot hubs to the stabilizer frame member and a finger that extends away from the stabilizer frame member, and the fingers of the left and the right pivot hubs included in the base stabilizer are engaged by the motion blockers of the corresponding left and right pivot locks to block rotation of the base stabilizer relative to the rolling base when the foldable frame is in the folded-out position and the motion blockers of the left and the right pivot locks are in the locked position. 2. The mobile cart of claim 1, wherein each of the left and the right pivot locks includes a biasing member arranged to bias the corresponding motion blocker toward the locked position, each of the fingers of the left and the right pivot hubs included in the base stabilizer is formed to include an engagement surface and a cam surface, the engagement surface of each of the fingers of the left and the right pivot hubs included in the base stabilizer is arranged to extend at a right angle from the stabilizer frame member and to be engaged by the motion blockers of the corresponding left and right pivot locks to block rotation of the base stabilizer relative to the rolling base when the foldable frame is in the folded-out position and the motion blockers of the left and the right pivot locks are in the locked position, and the cam surface of each of the fingers of the left and the right pivot hubs included in the base stabilizer is arranged to extend at a cam angle from the stabilizer frame member and to push the motion blockers of the corresponding left and right pivot locks from the locked position to the unlocked position during movement of the foldable frame from the folded-in position to the folded-out position. 3. The mobile cart of claim 1, wherein the base pusher includes a pusher frame member, a left pivot hub coupled to the pusher frame member, and a right pivot hub coupled to the pusher frame member, each of the left and the right pivot hubs is formed to include a pusher frame receiver that receives a portion of the pusher frame member to couple the left and the right pivot hubs to the pusher frame member and a finger that extends away from the pusher frame member, and the fingers of the left and the right pivot hubs included in the base pusher are engaged by the motion blockers of the corresponding left and right pivot locks to block rotation of the base pusher relative to the rolling base when the foldable frame is in the folded-out position and the motion blockers of the left and the right pivot locks are in the locked position. 4. The mobile cart of claim 3, wherein each of the fingers of the left and the right pivot hubs included in the base pusher is formed to include an engagement surface and a cam surface, the engagement surface of each of the fingers of the left and the right pivot hubs included in the base pusher is arranged to extend at a right angle from the pusher frame member and to be engaged by the motion blockers of the corresponding left and right pivot locks to block rotation of the base pusher relative to the rolling base when the foldable frame is in the folded-out position and the motion blockers of the left and the right pivot locks are in the locked position, and the cam surface of each of the fingers of the left and the right pivot hubs included in the base pusher are arranged to extend at a cam angle from the pusher frame member and to push the motion blockers of the corresponding left and right pivot locks from the locked position to the unlocked position during movement of the foldable frame from the folded-in position to the folded-out position. 5. The mobile cart of claim 3, wherein each of the left and the right pivot locks includes a housing coupled to the rolling base and at least a portion of the motion blocker, the fingers of the left and the right pivot hubs included in the rolling base stabilizer, and the fingers of the left and the right pivot hubs included in the base pusher are arranged inside the housings of the left and the right pivot locks. 6. The mobile cart of claim 1, wherein the frame-motion controller includes a left link and a right link adapted to coordinate movement of the base stabilizer and the base pusher during motion of the foldable frame between the folded-out position and the folded-in position, the left link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher, and the right link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher. 7. A mobile cart adapted for use in a stroller, the mobile cart comprising a rolling base including a left wheeled leg and a right wheeled leg,a foldable frame including a base stabilizer coupled to the rolling base to pivot about a frame axis and a base pusher coupled to the rolling base to pivot about a pusher axis, anda frame-motion controller adapted to provide fold means for releasing the foldable frame to move from a folded-out position in which the base stabilizer and the base pusher extend away from the rolling base to support a child sitting on a seat mounted to the mobile cart when the mobile cart is in use to a folded-in position in which the base stabilizer and the base pusher extend along the rolling base reducing the footprint of the mobile cart to allow storage of the mobile cart in response to a user lifting upwardly with one hand on a fold handle included in the frame-motion controller and for coordinating movement of the base stabilizer included in the foldable frame and the base pusher included in the foldable frame as they move from the folded-out position to the folded-in position in response to continued upward lifting of the fold handle with one hand by a user that causes a gravitational force to pull the base stabilizer and the base pusher of the foldable frame toward the folded-in position so that a user can move the foldable frame from the folded-out position to the folded-in position for storage using only a first hand freeing a second hand to carry a child, wherein the frame-motion controller includes a left link and a right link adapted to coordinate movement of the base stabilizer and the base pusher during motion of the foldable frame between the folded-out position and the folded-in position, the left link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher, and the right link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher, andwherein each of the left and the right link included in the movement linkage is coupled to a stabilizer-link support included in the base stabilizer and to a pusher-link support included in the base pusher, the stabilizer-link support is offset from the pivot axis about which the base stabilizer pivots relative to the rolling base, and the pusher-link support is offset from the pivot axis about which the base pusher pivots relative to the rolling base. 8. A mobile cart comprising a rolling base including a left wheeled leg and a right wheeled leg,a foldable frame including a base stabilizer coupled to the rolling base to pivot about a stabilizer axis and a base pusher coupled to the rolling base to pivot about a pusher axis, the foldable frame movable from a folded-out position in which the base stabilizer and the base pusher extend away from the rolling base to a folded-in position in which the base stabilizer and the base pusher extend along the rolling base, anda frame-motion controller movable from a locked mode in which the foldable frame is blocked from movement away from the folded-out position to an unlocked mode in which the foldable frame is allowed to move away from the folded-out position, the frame-motion controller including a left pivot lock coupled to the left wheeled leg along a left side of the rolling base, a right pivot lock coupled to the right wheeled leg along a right side of the rolling base, and the fold handle that interconnects the left pivot lock and the right pivot lock,wherein each of the left pivot lock and the right pivot lock includes a motion blocker coupled to the rolling base to slide relative to the rolling base from a locked position arranged to block the base stabilizer included in the foldable frame and the base pusher included in the foldable frame from rotation relative to the rolling base when the foldable frame is in the folded-out position to an unlocked position arranged to allow the base stabilizer included in the foldable frame and the base pusher included in the foldable frame to rotate relative to the rolling base when the foldable frame is in the folded-out position,wherein each of the left pivot lock and the right pivot lock includes a lever coupled to the fold handle and to the rolling base to pivot relative to the rolling base from a first position disengaged from the corresponding left or right motion blocker to a second position engaged with the corresponding left or right motion blocker to push the corresponding left or right motion blocker from the locked position to the unlocked position, andwherein the base stabilizer includes a stabilizer frame member, a left pivot hub coupled to the stabilizer frame member, and a right pivot hub coupled to the stabilizer frame member, each of the left and the right pivot hubs is formed to include a stabilizer frame receiver that receives a portion of the stabilizer frame member to couple the left and the right pivot hubs to the stabilizer frame member and a finger that extends away from the stabilizer frame member, and the fingers of the left and the right pivot hubs included in the base stabilizer are engaged by the motion blockers of the corresponding left and right pivot locks to block rotation of the base stabilizer relative to the rolling base when the foldable frame is in the folded-out position and the motion blockers of the left and the right pivot locks are in the locked position. 9. The mobile cart of claim 8, wherein each of the left and the right pivot locks includes a biasing member arranged to bias the corresponding motion blocker toward the locked position, each of the fingers of the left and the right pivot hubs included in the base stabilizer is formed to include an engagement surface and a cam surface, the engagement surface of each of the fingers of the left and the right pivot hubs included in the base stabilizer is arranged to extend at a right angle from the stabilizer frame member and to be engaged by the motion blockers of the corresponding left and right pivot locks to block rotation of the base pusher relative to the rolling base when the foldable frame is in the folded-out position and the motion blockers of the left and the right pivot locks are in the locked position, and the cam surface of each of the fingers of the left and the right pivot hubs included in the base stabilizer is arranged to extend at a cam angle from the stabilizer frame member and to push the motion blockers of the corresponding left and right pivot locks from the locked position to the unlocked position during movement of the foldable frame from the folded-in position to the folded-out position. 10. The mobile cart of claim 8, wherein the base pusher includes a pusher frame member, a left pivot hub coupled to the pusher frame member, and a right pivot hub coupled to the pusher frame member, each of the left and the right pivot hubs is formed to include a pusher frame receiver that receives a portion of the pusher frame member to couple the left and the right pivot hubs to the pusher frame member and a finger that extends away from the pusher frame member, and the fingers of the left and the right pivot hubs included in the base pusher are engaged by the motion blockers of the corresponding left and right pivot locks to block rotation of the base pusher relative to the rolling base when the foldable frame is in the folded-out position and the motion blockers of the left and the right pivot locks are in the locked position. 11. The mobile cart of claim 8, wherein the frame-motion controller includes a left link and a right link adapted to coordinate movement of the base stabilizer and the base pusher during motion of the foldable frame between the folded-out position and the folded-in position, the left link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher, and the right link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher. 12. A mobile cart comprising a rolling base including a left wheeled leg and a right wheeled leg,a foldable frame including a base stabilizer coupled to the rolling base to pivot about a stabilizer axis and a base pusher coupled to the rolling base to pivot about a pusher axis, the foldable frame movable from a folded-out position in which the base stabilizer and the base pusher extend away from the rolling base to a folded-in position in which the base stabilizer and the base pusher extend along the rolling base, anda frame-motion controller movable from a locked mode in which the foldable frame is blocked from movement away from the folded-out position to an unlocked mode in which the foldable frame is allowed to move away from the folded-out position, the frame-motion controller including a left pivot lock coupled to the left wheeled leg along a left side of the rolling base, a right pivot lock coupled to the right wheeled leg along a right side of the rolling base, and the fold handle that interconnects the left pivot lock and the right pivot lock,wherein the frame-motion controller includes a left link and a right link adapted to coordinate movement of the base stabilizer and the base pusher during motion of the foldable frame between the folded-out position and the folded-in position, the left link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher, and the right link is coupled to the base stabilizer to pivot relative to the base stabilizer and coupled to the base pusher to pivot relative to the base pusher, andwherein each of the left and the right link included in the movement linkage is coupled to a stabilizer-link support included in the base stabilizer and to a pusher-link support included in the base pusher, the stabilizer-link support is offset from the pivot axis about which the base stabilizer pivots relative to the rolling base, and the pusher-link support is offset from the pivot axis about which the base pusher pivots relative to the rolling base. 13. The mobile cart of claim 12, wherein each of the left and the right link included in the movement linkage is a generally z-shaped rod with ends received in the stabilizer-link support and in the pusher-link support.
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이 특허에 인용된 특허 (34)
Mostert, Marc; Van Diepen, Paulus Adrianus Jacobus, Assembly comprising a chassis and a child seat being detachably connectable to the chassis, such a chassis as well as such a child seat.
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