IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0812941
(2009-01-16)
|
등록번호 |
US-8342562
(2013-01-01)
|
우선권정보 |
FR-08 50283 (2008-01-17) |
국제출원번호 |
PCT/FR2009/050059
(2009-01-16)
|
§371/§102 date |
20100909
(20100909)
|
국제공개번호 |
WO2009/092970
(2009-07-30)
|
발명자
/ 주소 |
- Chaudeurge, Jean-Michel Francois
|
출원인 / 주소 |
- Chaudeurge, Jean-Michel Francois
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
6 |
초록
▼
A frame for a child's stroller which includes two rear arms and a single front arm which are joined to one another with the two rear arms spaced on opposite sides of a front to rear median vertical plane (P) of the frame and wherein wheels are pivotally mounted to each of the arms so as to be movabl
A frame for a child's stroller which includes two rear arms and a single front arm which are joined to one another with the two rear arms spaced on opposite sides of a front to rear median vertical plane (P) of the frame and wherein wheels are pivotally mounted to each of the arms so as to be movable between first deployed positions wherein an axes of rotation of the wheels extend transversely to the plane (P) and a second compact storage position wherein the axes of rotation of the wheels extend parallel with respect to the plane (P), and wherein the wheels connected so as to be moved simultaneously between the two positions.
대표청구항
▼
1. A frame for a stroller for transporting a child, comprising: two rear arms and a single front arm which are fixedly joined to one another, the two rear arms being spaced on opposite sides of a front to rear median vertical plane (P) of the frame;at least one wheel adjustably mounted to each of th
1. A frame for a stroller for transporting a child, comprising: two rear arms and a single front arm which are fixedly joined to one another, the two rear arms being spaced on opposite sides of a front to rear median vertical plane (P) of the frame;at least one wheel adjustably mounted to each of the two rear arms and the front arm so as to be movable between a first extended service position wherein an axis of rotation of each wheel extends transversely with respect to the median vertical plane (P) of the frame and a second compact storage position wherein the axis of rotation of the wheels extends parallel with respect to the median vertical plane (P) of the frame;movement means connected to the front arm for moving the at least one front wheel relative to the front arm between the first and second positions, the movement means being kinematically connected to second movement means connected to each of the at least one wheels mounted to the two rear arms for simultaneously moving the rear wheels between the first and second positions and wherein a distance between the rear wheels and the at least one front wheel being smaller when in the second position than when in the first position, andthe movement means including a driving handle mounted at a front end of the front arm. 2. The frame of claim 1, wherein, when the rear wheels are in their second retracted position, they extend in a common plane perpendicular to the median vertical plane (P) of the frame and are able to roll on a ground surface along the common plane. 3. The frame as claimed in claim 1, wherein the movement means includes a main shaft which is supported by the front arm so as to rotate on the front arm and a front end of which is kinematically linked, both to the handle and to a hub of the at least one front wheel, and wherein a rear end of the main shaft is kinematically linked to a hub of each rear wheel. 4. The frame of claim 3, wherein the handle is formed as a single rigid piece with the front end of the main shaft. 5. The frame of claim 3, wherein the hub of the at least one front wheel is fixedly linked to a leg member, connected to the front end of the main shaft by a mechanical articulation assembly which includes both a pivot articulation defining an axis which extends transverse to the main shaft, around which the leg member and the main shaft pivot freely relative to one another, and immobilizing means for locking the leg member relative to the shaft so that the rotation axis of the at least one front wheel extends orthoradially to the main shaft. 6. The frame of claim 5, wherein the articulation assembly is supported by an end fitting rigidly connected to the front end of the main shaft, the handle having a shape of a bow which extends along a front peripheral portion of the end fitting so that a space for receiving fingers of a hand of a user is formed. 7. The frame of claim 5, wherein the immobilizing means are controlled by a trim that is movable relative to the front end of the main shaft, the trim covering the pivot articulation. 8. The frame of claim 3, wherein the second movement means includes, for each rear wheel, both a link block fixedly linked to a hub of the rear wheel and movably mounted in a slide which is joined to a corresponding rear arm and which guides the link block in a helical movement, and kinematic pulling and pushing means which link the link block and the rear end of the main shaft. 9. The frame of claim 8, wherein, for each rear wheel, the slide includes at least one groove including a helical front portion and a rectilinear rear portion for receiving a complementary element which is joined to the link block to guide the link block within the at least one groove. 10. The frame of claim 9, wherein, for each rear wheel, the link block and the slide respective include axially ribbed and grooved portions, which are shaped so as to cooperate with one another when the complementary element joined to the link block is received in the rectilinear rear portion of the at least one groove. 11. The frame of claim 8, wherein the kinematic pulling and pushing means consist, for each rear wheel, of a pulling and pushing cord connecting the link block and the rear end of the main shaft. 12. The frame of claim 11, wherein at least a portion of each pulling and pushing cord consists of a metal alloy with shape memory. 13. The frame of claim 11, wherein the second movement means includes a control wheel which is rigidly and coaxially linked to the rear end of the main shaft and to which are fixed, in a diametrically opposite manner, respective rear ends of the pulling and pushing cords. 14. The frame of claim 13, wherein a torque limiting means is interposed between the control wheel and the rear end of the main shaft. 15. The frame of claim 14 wherein the torque limiting means is a horseshoe-type spring. 16. The frame of claim 8 wherein the kinematic pulling and pushing means includes, for each rear wheel, a semi-rigid actuation rod conformed to transmit pulling and pushing forces between the link block and the rear end of the main shaft in the longitudinal direction of the rod, while being elastically deformable by bending. 17. The frame of claim 16, wherein the second movement means includes a control wheel which is rigidly and coaxially linked to the rear end of the main shaft and to which are fixed, in a diametrically opposite manner, respective rear ends of the actuating rods. 18. The frame of claim 17, wherein a torque limiting means is interposed between the control wheel and the rear end of the main shaft. 19. The frame of claim 18 wherein the torque limiting means is a horseshoe-type spring. 20. A stroller for transporting a child, the stroller comprising: a frame including two rear arms and a single front arm which are fixedly joined to one another, the two rear arms being spaced from one another on opposite sides of a front to rear median vertical plane (P) of the frame;at least one wheel adjustably mounted to each of the two rear arms and the front arm so as to be movable between a first extended service position wherein an axis of rotation of each wheel extends transversely with respect to the median vertical plane (P) of the frame and a second compact storage position wherein the axis of rotation of the wheels extends parallel with respect to the median vertical plane (P) of the frame;movement means connected to the front arm for moving the at least one front wheel relative to the front arm between the first and second positions, the movement means being kinematically connected to second movement means connected to each of the at least one wheels mounted to the two rear arms for simultaneously moving the rear wheels between the first and second positions and wherein a distance between the rear wheels and the at least one front wheel being smaller when in the second position than when in the first position,the movement means including a driving handle mounted at a front end of the front arm;a support for a child; andmounting components for mounting the support to the frame.
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