Convertible transport trolley having a pair of fold-away legs and simultaneously fold-away wheels
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62B-001/12
B62B-005/00
B62B-005/06
B62B-005/02
출원번호
US-0382268
(2013-02-27)
등록번호
US-9643628
(2017-05-09)
우선권정보
FR-12 51885 (2012-03-01)
국제출원번호
PCT/EP2013/053956
(2013-02-27)
국제공개번호
WO2013/127873
(2013-09-06)
발명자
/ 주소
Herbault, Patrick
Marques, Frédéric
Saulnier, Fabien
출원인 / 주소
Peugeot Citroën Automobiles SA
대리인 / 주소
Polster, Lieder, Woodruff & Lucchesi, LC
인용정보
피인용 횟수 :
0인용 특허 :
22
초록▼
A transport trolley (CT) comprises: a pair of legs (J1) each having a lower end to which there is coupled a plate (PT1) on which at least one wheel (R1) is mounted so as to rotate in a transverse direction, first load supporting means (S1) coupled to the lower ends of the legs (J1), first coupling m
A transport trolley (CT) comprises: a pair of legs (J1) each having a lower end to which there is coupled a plate (PT1) on which at least one wheel (R1) is mounted so as to rotate in a transverse direction, first load supporting means (S1) coupled to the lower ends of the legs (J1), first coupling means (MC1) on which the lower ends of the legs (J1) are mounted so as to rotate in the transverse direction such that they can move from a folded-out position to a folded-away position, and on which the plates (PT1) are mounted so as to rotate such that wheels (R1) thereof can pivot and move from a folded-out position to a folded-away position approximately parallel to the folded-away legs (J1), and second coupling means (MC2) designed to force the legs (J1) and the wheels (R1) to be substantially simultaneously either in their folded-away position or in their folded-out position.
대표청구항▼
1. A transport trolley comprising a pair of legs, each comprising a lower extremity; a plate rotatably mounted to said lower extremity of each leg to rotate in a transverse direction; at least one wheel rotatably mounted to said plate, and a first load support means coupled to said lower extremities
1. A transport trolley comprising a pair of legs, each comprising a lower extremity; a plate rotatably mounted to said lower extremity of each leg to rotate in a transverse direction; at least one wheel rotatably mounted to said plate, and a first load support means coupled to said lower extremities of the legs; wherein the transport trolley further comprises: i) first coupling means; said lower extremities of said legs being rotatably mounted in a transverse direction to said first coupling means so that said legs are movable between a straightened-out position and a folded-away position; said plates being rotatably mounted to said first coupling means so that said wheels pivot under load about a longitudinal axis generally parallel to the ground between a straightened-out position and a folded-away position approximately parallel to said folded-away legs,ii) second coupling means arranged to force said legs and said wheels to be approximately simultaneously in either their folded-away position or in their straightened-out position, and wherein said wheels pivot under load about a longitudinal axis of rotation generally parallel to the ground;iii) two feet associated respectively with said plates and arranged for stabilizing said trolley when said trolley is stationary; wherein said feet are rotatably mounted to said first coupling means so that said feet are movable between a straightened-out position suitable for stabilizing said trolley to a folded-away position approximately parallel to said folded-away legs. 2. The trolley according to claim 1, wherein said second coupling means is arranged to force said plates and said feet to be approximately simultaneously either in their straightened-out position or in their folded-away position. 3. A transport trolley comprising a pair of legs, each comprising a lower extremity; a plate rotatably mounted to said lower extremity of each leg to rotate in a transverse direction; at least one wheel rotatably mounted to said plate, and a first load support means coupled to said lower extremities of the legs; wherein the transport trolley further comprises: i) first coupling means; said lower extremities of said legs being rotatably mounted in a transverse direction to said first coupling means so that said legs are movable between a straightened-out position and a folded-away position; said plates being rotatably mounted to said first coupling means so that said wheels pivot under load about a longitudinal axis generally parallel to the ground between a straightened-out position and a folded-away position approximately parallel to said folded-away legs, wherein each plate is coupled to said first coupling means via a Scott-Russel type straightening mechanism; andii) second coupling means arranged to force said legs and said wheels to be approximately simultaneously in either their folded-away position or in their straightened-out position, and wherein said wheels pivot under load about a longitudinal axis of rotation generally parallel to the ground. 4. A transport trolley comprising a pair of legs, each comprising a lower extremity; a plate rotatably mounted to said lower extremity of each leg to rotate in a transverse direction; at least one wheel rotatably mounted to said plate, and a first load support means coupled to said lower extremities of the legs; wherein the transport trolley further comprises: i) first coupling means; said lower extremities of said legs being rotatably mounted in a transverse direction to said first coupling means so that said legs are movable between a straightened-out position and a folded-away position; said plates being rotatably mounted to said first coupling means so that said wheels pivot under load about a longitudinal axis generally parallel to the ground between a straightened-out position and a folded-away position approximately parallel to said folded-away legs, andii) second coupling means arranged to force said legs and said wheels to be approximately simultaneously in either their folded-away position or in their straightened-out position, and wherein said wheels pivot under load about a longitudinal axis of rotation generally parallel to the ground;wherein said first load support means is rotatably mounted to said first coupling means so that said first load support means is movable between a straightened-out position approximately perpendicular to said legs to a folded-away position approximately parallel to said folded down legs. 5. The trolley according to claim 4, wherein said first coupling means comprises at least two members to which are respectively rotatably mounted said legs and said plates, and in that said first load support means is solidly connected to said plates. 6. The trolley according to claim 4, wherein said first load support means comprises two blades. 7. The trolley according to claim 4, wherein each leg comprises two posts, on the one hand, comprising an upper extremity solidly connected to a corresponding longitudinal part and a lower extremity rotatably coupled to said first coupling means, and, on the other hand, cooperating with said longitudinal part in defining a deformable parallelepiped in which said posts are foldable approximately parallel to said longitudinal part. 8. The trolley according to claim 4, wherein said trolley constitutes a modular element of a platform floor of a vehicle. 9. A vehicle comprising a rear end arranged for receiving at least one transport trolley according to claim 4, after said at least one transport trolley has been configured in a folded-away storage position. 10. The trolley according to claim 4, wherein the trolley comprises two feet associated respectively with said plates and arranged for stabilizing said trolley when said trolley is stationary. 11. The trolley according to claim 10, wherein said first load support means is solidly connected to said feet. 12. The trolley according to claim 4, wherein said second coupling means comprises two crossed axis gear systems, each gear system being coupled to the lower extremity of one of the legs and a connecting rod suitable for pivoting one of said plates. 13. The trolley according to claim 4, wherein said second coupling means comprises a Sarrus structure coupled to the lower extremities of said legs. 14. The trolley according to claim 13, wherein said first load support means is in the form of a U-shaped plate; said first coupling means comprising two hinges each of which comprises a first part solidly connected to the lower extremity of one of said legs and a second part rotatably mounted to said first part and to which is rotatably mounted one extremity of said plate; said second coupling means comprising two articulations each of which comprises a first part mounted in rotation to the first part of one of the hinges, a second part mounted in rotation to said first part and a third part rotatably mounted to said second part and to which is rotatably mounted one of said plates and another extremity of said plate.
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