IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0753496
(2010-04-02)
|
등록번호 |
US-8585075
(2013-11-19)
|
우선권정보 |
CN-2009 1 0139639 (2009-06-30) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Wonderland Nurserygoods Co., Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
22 |
초록
▼
A stroller includes a stroller frame having a mounting frame portion, a support frame connected pivotally to the mounting frame portion for supporting a seat, and a support-frame adjusting device operable to adjust an angle between the support frame and the mounting frame portion. The support-frame
A stroller includes a stroller frame having a mounting frame portion, a support frame connected pivotally to the mounting frame portion for supporting a seat, and a support-frame adjusting device operable to adjust an angle between the support frame and the mounting frame portion. The support-frame adjusting device includes an elongated supporting member disposed pivotally on one of the support frame and the mounting frame portion and having first and second engagement portions, and a positioning member locked releaseably at a selected one of the first and second engagement portions. When released from the selected one of the first and second engagement portions, the positioning member is movable to engage the other one of the first and second engagement portions to thereby change the angle between the supporting member and the mounting frame portion and, thus, the inclination angle of the seat.
대표청구항
▼
1. A stroller adapted to be connected with a seat, said stroller comprising: a stroller frame having a mounting frame portion;a support frame connected pivotally to said mounting frame portion of said stroller frame and adapted to permit the seat to be mounted removably thereon; anda support-frame a
1. A stroller adapted to be connected with a seat, said stroller comprising: a stroller frame having a mounting frame portion;a support frame connected pivotally to said mounting frame portion of said stroller frame and adapted to permit the seat to be mounted removably thereon; anda support-frame adjusting device operable to adjust an angle between said support frame and said mounting frame portion of said stroller frame and including:an elongated supporting member disposed pivotally on one of said support frame and said mounting frame portion and having a first engagement portion and a second engagement portion that are spaced apart from each other along a longitudinal direction of said supporting member, anda positioning member removably engaging a selected one of said first and second engagement portions of said supporting member;wherein, when released from the selected one of said first and second engagement portions of said supporting member, said positioning member is movable to and thus locked releaseably at the other one of said first and second engagement portions of said positioning member to change the angle between said supporting member and said mounting frame portion and, thus, the inclination angle of the seat. 2. The stroller as claimed in claim 1, wherein each of said first and second engagement portions of said supporting member of said support-frame adjusting device is elongated, and has an open end and a closed end that are opposite to each other, said open and closed ends of said first engagement portion being aligned respectively with those of said second engagement portion such that, when locked at the selected one of said first and second engagement portions, said positioning member is disposed at said closed end of the selected one of said first and second engagement portions, and when released from the selected one of said first and second engagement portions, said positioning member is disposed at said open end of the selected one of said first and second engagement portions. 3. The stroller as claimed in claim 2, wherein said supporting member of said support-frame adjusting device is formed with a generally U-shaped slot therethrough, said U-shaped slot having a pair of first and second side slot portions constituting respectively said first and second engagement portions, and a lengthwise slot portion connected between said open ends of said first and second engagement portions. 4. The stroller as claimed in claim 3, wherein said supporting member of said support-frame adjusting device has a lower end disposed pivotally on said mounting frame portion of said stroller frame, and an upper end extending into said support frame, said first and second engagement portions being located at an upper end portion of said supporting member such that said first engagement portion is disposed below said second engagement portion, said positioning member extending through the selected one of said first and second engagement portions such that, when an external force is applied to move said positioning member to said open end of the selected one of said first and second engagement portions, said positioning member is released from the selected one of said first and second engagement portions, and is movable to engage the other of said first and second engagement portions. 5. The stroller as claimed in claim 4, wherein said support-frame adjusting device further includes a resilient unit, said resilient unit including a torsion spring disposed between said lower end of said supporting member and said mounting frame portion of said stroller frame for biasing said positioning member into said closed end of the selected one of said first and second engagement portions. 6. The stroller as claimed in claim 5, wherein said resilient unit further includes a hollow spring seat disposed fixedly on said mounting frame portion for receiving said torsion spring, and an end cap disposed fixedly on said lower end of said supporting member, said torsion spring having one end fastened to said spring seat, and the other end fastened to said end cap. 7. The stroller as claimed in claim 1, wherein said supporting member of said support-frame adjusting device is formed with a straight slot therethrough, said straight slot having two retaining slot portions disposed respectively at two opposite ends thereof and constituting respectively said first and second engagement portions, and an intermediate slot portion connected between said retaining slot portions and permitting said positioning member to move from one of said retaining slot portions into the other of said retaining slot portions therethrough. 8. The stroller as claimed in claim 7, wherein said retaining slot portions of said slot have a diameter larger than a width of said intermediate slot portion, and said positioning member has a large-diameter section movable to engage fittingly a selected one of said retaining slot portions so that said positioning member is locked within the selected one of said retaining slot portions, and a small-diameter section connected to said large-diameter section such that, when an external force is applied to said positioning member in a direction to remove said large-diameter section of said positioning member from the selected one of said retaining slot portions, said small-diameter section of said positioning member can be moved into the other of said retaining slot portions via said intermediate slot portion, after which, upon release of the external force, said large-diameter section of said positioning member is biased to move into said large-diameter slot portion in an opposite direction, thereby locking said positioning member therein. 9. The stroller as claimed in claim 8, wherein said supporting member of said support-frame adjusting device has a lower end disposed pivotally on said mounting frame portion of said stroller frame, and an upper end extending into said support frame, said first and second engagement portions being located at an upper end portion of said supporting member, said slot being straight, said positioning member extending into said support frame and through the selected one of said first and second engagement portions of said supporting member. 10. The stroller as claimed in claim 9, wherein said support-frame adjusting device further includes a spring for biasing said large-diameter section of said positioning member into the selected one of said first and second engagement portions of said supporting member. 11. The stroller as claimed in claim 10, wherein said support frame has a side surface formed with a cavity, said small-diameter section of said positioning member extending into said cavity, said resilient unit further including a pushbutton disposed within said cavity and sleeved fixedly on an end of said small-diameter section of said positioning member distal from said large-diameter, said spring being disposed within said cavity and having one end abutting against a bottom wall defining said cavity, and the other end abutting against said pushbutton such that, when said pushbutton is pressed, said positioning member is moved within said support member in a direction away from said cavity to remove said large-diameter section of said positioning member from the selected one of said first and second engagement portions, and when said pushbutton is released, said positioning member is moved within said support member in a direction toward said cavity to engage said large-diameter section of said positioning member within the selected one of said first and second engagement portions. 12. The stroller as claimed in claim 1, wherein said support-frame adjusting device further includes a sliding sleeve fixed on said mounting frame portion of said stroller frame and extending toward said support frame, said supporting member having an upper end mounted pivotally to said support frame and extending downwardly and slidably into said sliding sleeve, said positioning member being mounted on said sliding sleeve. 13. The stroller as claimed in claim 12, wherein said first and second engagement portions are configured respectively as two notches that are formed in a side of said supporting member, said sliding sleeve being formed with a slot disposed adjacent to said first and second engagement portions and permitting extension of said positioning member therethrough, said slot having opposite first and second ends and extending along a direction perpendicular to said longitudinal direction of said supporting member, said positioning member being locked at the selected one of said first and second engagement portions when located at said first end of said slot, said positioning member being operable to move into said second end of said slot so as to allow for relative movement between said supporting member and said sliding sleeve and, thus, an adjustment to said angle between said support frame and said mounting frame portion of said stroller frame. 14. The stroller as claimed in claim 13, wherein said support-frame adjusting device further includes a resilient unit mounted on said sliding sleeve, said resilient unit including a spring disposed on said sliding sleeve for biasing said positioning member into said first end of said slot. 15. The stroller as claimed in claim 14, wherein said resilient unit of said support-frame adjusting device further includes a pushbutton having a U-shaped cross-section, two side plates flanking said sliding sleeve, and a pressing portion interconnecting said side plates, said positioning member extending through said side plates of said pushbutton, said spring having two opposite ends abutting respectively against said pressing portion of said pushbutton and said sliding sleeve such that, when said pressing portion of said pushbutton is pressed, said positioning member is pushed and moved into said second end of said slot. 16. The stroller as claimed in claim 1, wherein said support-frame adjusting device further includes a resilient unit for biasing said positioning member into the selected one of said first and second engagement portions of said supporting member. 17. The stroller as claimed in claim 1, wherein the seat comprises a car safety seat. 18. The stroller as claimed in claim 1, wherein the support frame comprises an armrest. 19. A support-frame adjusting device adapted to adjust an angle between a support frame and a mounting frame portion of a stroller frame, the support frame being connected pivotally to the mounting frame portion, said support-frame adjusting device comprising: an elongated supporting member disposed pivotally on one of the support frame and the mounting frame portion and having a first engagement portion and a second engagement portion that are spaced apart from each other along a longitudinal direction of said supporting member, anda positioning member removably engaging a selected one of said first and second engagement portions of said supporting member;wherein, when released from the selected one of said first and second engagement portions of said supporting member, said positioning member is movable to and thus locked releaseably at the other one of said first and second engagement portions of said positioning member to change the angle between said supporting member and the mounting frame portion. 20. The support-frame adjusting device as claimed in claim 19, wherein each of said first and second engagement portions of said supporting member of said support-frame adjusting device is elongated, and has an open end and a closed end that are opposite to each other, said open and closed ends of said first engagement portion being aligned respectively with those of said second engagement portion such that, when locked at the selected one of said first and second engagement portions, said positioning member is disposed at said closed end of the selected one of said first and second engagement portions, and when released from the selected one of said first and second engagement portions, said positioning member is disposed at said open end of the selected one of said first and second engagement portions. 21. The support-frame adjusting device as claimed in claim 20, wherein said supporting member of said support-frame adjusting device is formed with a generally U-shaped slot therethrough, said U-shaped slot having a pair of first and second side slot portions constituting respectively said first and second engagement portions, and a lengthwise slot portion connected between said open ends of said first and second engagement portions. 22. The support-frame adjusting device as claimed in claim 21, wherein said supporting member of said support-frame adjusting device has a lower end disposed pivotally on the mounting frame portion of the stroller frame, and an upper end extending into the support frame, said first and second engagement portions being located at an upper end portion of said supporting member such that said first engagement portion is disposed below said second engagement portion, said positioning member extending through the selected one of said first and second engagement portions such that, when an external force is applied to move said positioning member to said open end of the selected one of said first and second engagement portions, said positioning member is released from the selected one of said first and second engagement portions, and is movable to engage the other of said first and second engagement portions. 23. The support-frame adjusting device as claimed in claim 22, wherein said support-frame adjusting device further includes a resilient unit, said resilient unit including a torsion spring disposed between said lower end of said supporting member and the mounting frame portion of the stroller frame for biasing said positioning member into said closed end of the selected one of said first and second engagement portions. 24. The support-frame adjusting device as claimed in claim 23, wherein said resilient unit further includes a hollow spring seat disposed fixedly on the mounting frame portion for receiving said torsion spring, and an end cap disposed fixedly on said lower end of said supporting member, said torsion spring having one end fastened to said spring seat, and the other end fastened to said end cap. 25. The support-frame adjusting device as claimed in claim 19, wherein said supporting member of said support-frame adjusting device is formed with a straight slot therethrough, said straight slot having two retaining slot portions disposed respectively at two opposite ends thereof and constituting respectively said first and second engagement portions, and an intermediate slot portion connected between said retaining slot portions and permitting said positioning member to move from one of said retaining slot portions into the other of said retaining slot portions therethrough. 26. The support-frame adjusting device as claimed in claim 19, wherein said retaining slot portions of said slot have a diameter larger than a width of said intermediate slot portion, and said positioning member has a large-diameter section movable to engage fittingly a selected one of said retaining slot portions so that said positioning member is locked within the selected one of said retaining slot portions, and a small-diameter section connected to said large-diameter section such that, when an external force is applied to said positioning member in a direction to remove said large-diameter section of said positioning member from the selected one of said retaining slot portions, said small-diameter section of said positioning member can be moved into the other of said retaining slot portions via said intermediate slot portion, after which, upon release of the external force, said large-diameter section of said positioning member is biased to move into said large-diameter slot portion in an opposite direction, thereby locking said positioning member therein. 27. The support-frame adjusting device as claimed in claim 26, wherein said supporting member of said support-frame adjusting device has a lower end disposed pivotally on the mounting frame portion of the stroller frame, and an upper end extending into the support frame, said first and second engagement portions being located at an upper end portion of said supporting member, said slot being straight, said positioning member extending into the support frame and through the selected one of said first and second engagement portions of said supporting member. 28. The support-frame adjusting device as claimed in claim 27, wherein said support-frame adjusting device further includes a spring for biasing said large-diameter section of said positioning member into the selected one of said first and second engagement portions of said supporting member. 29. The support-frame adjusting device as claimed in claim 28, wherein the support frame has a side surface formed with a cavity, said small-diameter section of said positioning member extending into said cavity, said resilient unit further including a pushbutton disposed within said cavity and sleeved fixedly on an end of said small-diameter section of said positioning member distal from said large-diameter, said spring being disposed within said cavity and having one end abutting against a bottom wall defining said cavity, and the other end abutting against said pushbutton such that, when said pushbutton is pressed, said positioning member is moved away from said cavity to remove said large-diameter section of said positioning member from the selected one of said first and second engagement portions, and when said pushbutton is released, said positioning member is moved toward said cavity to engage said large-diameter section of said positioning member within the selected one of said first and second engagement portions. 30. The support-frame adjusting device as claimed in claim 19, wherein said support-frame adjusting device further includes a sliding sleeve fixed on the mounting frame portion of the stroller frame and extending toward the support frame, said supporting member having an upper end mounted pivotally to the support frame and extending downwardly and slidably into said sliding sleeve, said positioning member being mounted on said sliding sleeve. 31. The support-frame adjusting device as claimed in claim 30, wherein said first and second engagement portions are configured respectively as two notches that are formed in a side of said supporting member, said sliding sleeve being formed with a slot disposed adjacent to said first and second engagement portions and permitting extension of said positioning member, said slot having opposite first and second ends and extending along a direction perpendicular to said longitudinal direction of said supporting member, said positioning member being locked at the selected one of said first and second engagement portions when located at said first end of said slot, said positioning member being operable to move into said second end of said slot so as to allow for relative movement between said supporting member and said sliding sleeve and, thus, an adjustment to said angle between the support frame and the mounting frame portion of the stroller frame. 32. The support-frame adjusting device as claimed in claim 31, wherein said support-frame adjusting device further includes a resilient unit mounted on said sliding sleeve, said resilient unit including a spring disposed on said sliding sleeve for biasing said positioning member into said first end of said slot. 33. The support-frame adjusting device as claimed in claim 32, wherein said resilient unit of said support-frame adjusting device further includes a pushbutton having a U-shaped cross-section, two side plates flanking said sliding sleeve, and a pressing portion interconnecting said side plates, said positioning member extending through said side plates of said pushbutton, said spring having two opposite ends abutting respectively against said pressing portion of said pushbutton and said sliding sleeve such that, when said pressing portion of said pushbutton is pressed, said positioning member is pushed and moved into said second end of said slot. 34. The support-frame adjusting device as claimed in claim 19, wherein said support-frame adjusting device further includes a resilient unit for biasing said positioning member into the selected one of said first and second engagement portions of said supporting member. 35. The support-frame adjusting device as claimed in claim 19, wherein the support frame is adapted to permit a car safety seat to be mounted removably thereon. 36. The support-frame adjusting device as claimed in claim 19, wherein the support frame comprises an armrest.
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