[특허]Maneuverable strollers

KOLCRAFT ENTERPRISES, INC.

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Maneuverable strollers

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62B-007/06 A61G-005/06 B62B-007/04 B62B-007/00 B62B-007/10 B62B-009/18 A61G-005/10 B62B-003/00 B62B-003/14
출원번호	US-0817401 (2011-11-30)
등록번호	US-9056622 (2015-06-16)
국제출원번호	PCT/US2011/062669 (2011-11-30)
§371/§102 date	20130215 (20130215)
국제공개번호	WO2012/075157 (2012-06-07)
발명자 / 주소	Thomas, Wes Iftinca, Liviu Bretschger, Ted Rolicki, Peter
출원인 / 주소	KOLCRAFT ENTERPRISES, INC.
대리인 / 주소	Hanley, Flight & Zimmerman, LLC
인용정보	피인용 횟수 : 3 인용 특허 : 52

초록

Maneuverable strollers are disclosed herein. An example stroller includes a frame, front wheels and rear wheels to support the frame, and an intermediate wheel between the front wheels and the rear wheels. The intermediate wheel is to provide a pivot point to turn the stroller. The intermediate wheel has a first diameter, the front and rear wheels have respective second and third diameters, where the first diameter is larger than the second diameter and the first diameter is larger than the third diameter.

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1. A stroller comprising: a frame having an upper frame member, an intermediate frame member, a rear frame member, and a lower frame member, the lower frame member positioned between the upper frame member and the intermediate frame member;a seat;a front wheel coupled to the frame via the upper frame member;a rear wheel coupled to the frame via the rear frame member;an intermediate wheel coupled to the frame via the intermediate frame member, the intermediate frame member comprising a slot, the slot to receive a pin of the lower frame member to enable the intermediate frame member to pivot relative to the lower frame member during folding of the frame; anda suspension at a rear end of the frame to provide a reactive force when the front wheel is pivoted about the intermediate wheel, wherein the suspension comprises a fluid cylinder disposed adjacent the rear wheel between the rear frame member and the intermediate frame member. 2. A stroller comprising: a frame having an upper frame portion, an intermediate frame portion, and a rear frame portion;a seat;a front wheel coupled to the frame via the upper frame portion;an intermediate wheel coupled to the frame via the intermediate frame portion;a rear wheel coupled to the frame via the rear frame portion, the rear frame portion having a first end to receive the rear wheel and a second end; anda first connector having a first end and second end, the first end pivotally coupled to the intermediate frame portion and the second end pivotally coupled to the second end of the rear frame portion, the first end of the first connector to define a first pivot point relative to the intermediate frame portion and the second end of the first connector to define a second pivot point relative to the rear frame portion, the first connector to pivot about the first pivot point and the second pivot point during folding of the frame to enable the intermediate frame portion to move to a folded position relative to the rear frame portion to collapse the frame, and wherein the second end of the rear frame portion is pivotally coupled to the frame at the second pivot point to enable the intermediate frame portion and the upper frame portion to pivot relative to the rear frame portion about an axis of rotation of the intermediate wheel when the front wheel is elevated relative to the intermediate wheel and the rear wheel when the stroller is in a non-collapsed position. 3. A stroller as defined in claim 2, wherein a distance between a center of the intermediate wheel and a center of the rear wheel is less than a distance between the center of the intermediate wheel and a center of the front wheel. 4. The stroller of claim 2, wherein the intermediate wheel is elevated with respect to the front wheel and the rear wheel when the frame is in a collapsed position. 5. The stroller of claim 2, wherein the first end of the first connector is to move toward the rear frame portion during folding of the frame. 6. The stroller of claim 2, wherein the first end of the first connector is to move distal to the rear frame portion when the frame is moved from a collapsed position to the non-collapsed position. 7. The stroller of claim 2, further comprising a second connector, the second connector to receive a first end of the upper frame portion and a first end of the intermediate frame portion. 8. The stroller of claim 7, wherein the front wheel is to support a second end of the upper frame portion and the intermediate wheel is to support a second end of the intermediate frame portion. 9. A stroller comprising: a frame having an upper frame portion, an intermediate frame portion, a lower frame portion, and a rear frame portion;a seat;a front wheel coupled to the frame via the upper frame portion;an intermediate wheel coupled to the frame via the intermediate frame portion;a rear wheel coupled to the frame via the rear frame portion; anda first connector having a first end and second end, the first end pivotally coupled to the intermediate frame portion and the second end pivotally coupled to the rear frame portion, the first end to define a first pivot point relative to the intermediate frame portion and the second end to define a second pivot point relative to the rear frame portion, the first connector to pivot about the first pivot point and the second pivot point during folding of the frame to enable the intermediate frame portion to move to a folded position relative to the rear frame portion to collapse the frame,wherein the lower frame portion is coupled to the second end of the first connector and to the upper frame portion via a second connector, the second connector having a first end and a second end, the first end of the second connector being pivotally coupled to the upper frame portion to define a third pivot point and the second end of the second connector being pivotally coupled to the lower frame portion to define a fourth pivot point, the second connector to pivot about the third pivot point and the fourth pivot point during folding of the frame. 10. A frame for use with a stroller, the frame comprising: a first frame side and a second frame side and a seat positioned between the first frame side and the second frame side, each of the first frame side and the second frame side having: a connector having a locked position and a released position;an upper frame support having a first end and a second end, the first end of the upper frame support to be received by a first receiving port of the connector and the second end of the upper frame to couple a front wheel to the frame;an intermediate frame support having a first end and a second end, the first end of the intermediate frame support to be received by a second receiving port of the connector and the second end of the intermediate frame support to couple an intermediate wheel to the frame, the connector to enable the upper frame support to pivot relative to the intermediate frame support when the connector is in the released position; anda rear frame support having a first end and a second end, the first end of the rear frame support to couple a rear wheel to the frame and the second end of the rear frame support being pivotally coupled to the frame to (1) enable the intermediate frame support to pivot relative to the rear frame support when the frame moves between a collapsed position and an expanded position, and (2) enable the intermediate frame support and the upper frame support to pivot relative to the rear frame support about an axis of rotation of the intermediate wheel when the front wheel is elevated relative to the rear wheel. 11. The stroller of claim 10, wherein the seat is a tandem seat. 12. The stroller of claim 10, wherein a longitudinal axis of the rear frame support forms a non-perpendicular angle relative to an axis of rotation of the intermediate wheel when the rear frame support is coupled to the frame. 13. The stroller of claim 10, wherein a longitudinal axis of the rear frame support forms a perpendicular angle relative to an axis of rotation of the intermediate wheel when the rear frame support is coupled to the frame. 14. A frame for use with a stroller, the frame comprising: a first frame side and a second frame side and a seat positioned between the first frame side and the second frame side, each of the first frame side and the second frame side having: a connector having a locked position and a released position;an upper frame support having a first end and a second end, the first end of the upper frame support to be received by a first receiving port of the connector and the second end of the upper frame to couple a front wheel to the frame;an intermediate frame support having a first end and a second end, the first end of the intermediate frame support to be received by a second receiving port of the connector and the second end of the intermediate frame support to couple an intermediate wheel to the frame, the connector to enable the upper frame support to pivot relative to the intermediate frame support when the connector is in the released position;a rear frame support having a first end and a second end, the first end of the rear frame support to couple a rear wheel to the frame and the second end of the rear frame support being pivotally coupled to the frame to enable the intermediate frame support to pivot relative to the rear frame support when the frame moves between a collapsed position and an expanded position; anda handle pivotably coupled to the connector via a third receiving port of the connector, wherein in the released position, the connector is to enable the handle to rotate toward the upper frame support during folding of the frame and in the locked position, the connector is to enable the handle to rotate toward the rear frame support when the frame is expanded for use. 15. The stroller of claim 14, wherein the connector is to move toward the rear wheel when the connector is in the released position during folding of the frame.

이 특허에 인용된 특허 (52)

이 특허를 인용한 특허 피인용횟수: 3

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Maneuverable strollers

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이 특허에 인용된 특허 (52)

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