IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0077973
(2002-02-20)
|
우선권정보 |
IT-0000022 (2001-02-20) |
발명자
/ 주소 |
- Tomasi, Ivan
- Marchiori, Nicola
- Gorza, Roberto
|
출원인 / 주소 |
|
대리인 / 주소 |
Birch, Stewart, Kolasch & Birch, LLP
|
인용정보 |
피인용 횟수 :
18 인용 특허 :
9 |
초록
▼
An umbrella-type folding frame particularly for push-chairs having a pair of front upper and lower struts, a pair of rear struts, at least one lock-release mechanism between each upper strut and its respective lower strut, an articulated connection structure between said rear struts and a lifting ha
An umbrella-type folding frame particularly for push-chairs having a pair of front upper and lower struts, a pair of rear struts, at least one lock-release mechanism between each upper strut and its respective lower strut, an articulated connection structure between said rear struts and a lifting handle, connected to the articulated structure, which is designed, upon being actuated, to cause the frame to set from an open or extended position to a closed or collapsed position and a driving device located on said frame at the said lifting handle for the remote control of said lock-release mechanism.
대표청구항
▼
1. An umbrella-type folding frame for push-chairs, comprising:a pair of front upper and lower struts,a pair of rear struts,a pair of engagement rigid members having one end thereof pivoted to rear struts and another end thereof slidably engaged with upper struts and secured to the lower struts,at le
1. An umbrella-type folding frame for push-chairs, comprising:a pair of front upper and lower struts,a pair of rear struts,a pair of engagement rigid members having one end thereof pivoted to rear struts and another end thereof slidably engaged with upper struts and secured to the lower struts,at least one lock-release mechanism disposed between each of the upper struts and the lower struts and connected to motion transmission means,a lifting handle,an articulated connection structure between said rear struts, andone driving device located on said articulated structure at said lifting handle and arranged to control said lock-release mechanism,whereby actuating said driving device and lifting said lifting handle causes the folding frame to change from an open or extended position to a closed or collapsed position. 2. The folding frame according to claim 1, wherein said driving device includes a manual actuation member arranged to move from a working to a rest position thereof. 3. The folding frame according to claim 1, wherein said driving device comprises a manual actuation member and a motion transmission means arranged between said manual actuation member and said lock-release mechanism. 4. The folding structure as claimed in claim 1, wherein said lifting handle comprises a support member or portion secured to said articulated connection structure. 5. The folding frame as claimed in claim 1, wherein said articulated connection structure comprises a cursor member designed to slide on a rod member while the folding frame is being folded or unfolded. 6. The folding frame according to claim 5, wherein said driving device comprises locking means arranged removably to secure said lifting handle to said cursor member or to said articulated connection structure. 7. The folding frame as claimed in claim 6, wherein said locking means comprises an engaging tooth designed to engage with a recess provided in said cursor member when said articulated connection structure is in its extended position. 8. The folding frame as claimed in claim 6, wherein said locking means comprises a manual actuation member having an inclined-plane surface arranged to automatically engage a tooth with a recess formed in said cursor member. 9. The folding frame as claimed in claim 6, wherein said driving device is a manual actuation member comprising a notch in said lifting handle and a limit member arranged to abut against said notch thereby preventing an engagement tooth from accidentally disengaging from a recess. 10. The folding frame as in claim 9 said actuation member comprises a loading spring. 11. The folding frame according to claim 1, wherein said lifting handle comprises an oblong element carried by said articulated connection structure and a manual actuation member comprises a lever member articulated to said oblong element and arranged to actuate said motion transmission means. 12. The folding frame according to claim 1, wherein said lifting handle comprises a grip portion secured to said articulated connection structure and a manual actuation member mounted for angular displacement or rotation relative to said grip portion and said motion transmission means between a manual actuation member and said at least one lock-release mechanism. 13. The folding frame according to claim 4, wherein said lifting handle comprises a rotating portion pivoted to said support member or portion and a pulley member rigidly attached to said handle and operatively connected to said motion transmission means. 14. The folding frame according to claim 1, wherein said handle is formed with a T-shaped hand grip, and a shank portion and includes an annular flanged member operatively connected to one end of said motion transmission means, and slidably mounted on said shank portion. 15. The folding frame as claimed in claim 14, wherein a locking means comprises a lever member having one end thereof pivotably attached to a cursor member and its other end shaped as a hook, and when the folding frame is in its open position, an engaging projecting tooth is in engagement with, and retained in a recess formed in said lever member. 16. The folding frame according to claim 14, comprising resiliency means for resiliently loading said flanged member. 17. The folding frame according to claim 1, wherein said handle comprises a frame lever element secured to said articulated connection structure and operatively connected to said motion transmission means. 18. The folding frame as claimed in claim 17, wherein a locking means comprises a lever member having one end thereof pivoted to a cursor member and its upper end formed with an engaging tooth arranged to engage with an extension of said articulated connection structure. 19. The folding frame as claimed in claim 18, wherein said lever member has said upper end at least partly shaped as an inclined plane surface thereby causing said engaging tooth automatically to engage with said extension. 20. A folding frame as claimed in claim 17, wherein a lever member is shaped as a bell crank and is pivoted to a frame handle, one arm of said lever member being formed with a tooth designed to engage with a respective recess provided in a cursor member, and another arm extending at an angle with respect to said one arm towards a support block. 21. The folding frame as claimed in claim 20, wherein the bell crank is biased by a spring. 22. The folding frame according to claim 1, wherein said motion transmission means comprisesat least one cable,at least one control lever designed to be actuated by said driving device through the at least one cable,at least one engagement member arranged to be actuated by a lever member,at least one rod member slidingly carried by said upper struts and supporting an engagement member, thereby actuating said lock-release mechanism. 23. The folding frame according to claim 22, wherein said at least one cable is a sheathed cable. 24. The folding frame according to claim 22, wherein said motion transmission means comprises at least one strut component. 25. The folding frame according to claim 22, wherein said at least one rod member is slidably mounted inside at least one of said upper struts. 26. The folding frame according to claim 1, wherein said at least one lock-release mechanism is at least one resiliently loaded control member operatively connected to and controlled by said motion transmission means.
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