IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0575007
(2011-02-03)
|
등록번호 |
US-8641059
(2014-02-04)
|
국제출원번호 |
PCT/US2011/023655
(2011-02-03)
|
§371/§102 date |
20120724
(20120724)
|
국제공개번호 |
WO2011/097419
(2011-08-11)
|
발명자
/ 주소 |
- Khodor, Leonid
- Khodor-Beloborodov, Julia
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
8 |
초록
▼
Disclosed is a folding chassis of manually driven carrier vehicles, for example, hand trucks, carts, and strollers, capable of moving over uneven or spongy surfaces and surmounting obstacles. The chassis includes a frame having a first plane, an arm with an axle, and a hub having a plurality of whee
Disclosed is a folding chassis of manually driven carrier vehicles, for example, hand trucks, carts, and strollers, capable of moving over uneven or spongy surfaces and surmounting obstacles. The chassis includes a frame having a first plane, an arm with an axle, and a hub having a plurality of wheels. The arm is rotatably attached to the frame with the hub rotatably disposed onto the axle and each of the plurality of wheels is rotatably attached to said hub around an axis parallel to said axle. The arm is configured to pivot between at least positions of the hub been generally perpendicular to said first plane and the hub been juxtaposed to said first plane.
대표청구항
▼
1. A folding chassis comprising: a frame having a reference plane;an arm with an axle, said arm rotatably attached to said frame; anda hub having a plurality of wheels, said hub rotatably disposed onto said axle;wherein said plurality of wheels has a diameter at least equal to a half of a width of s
1. A folding chassis comprising: a frame having a reference plane;an arm with an axle, said arm rotatably attached to said frame; anda hub having a plurality of wheels, said hub rotatably disposed onto said axle;wherein said plurality of wheels has a diameter at least equal to a half of a width of said frame, each of said plurality of wheels is rotatably attached to said hub around an axis parallel to said axle, and said arm is configured to pivot between at least a first and a second positions of said hub, wherein, in the first position, said hub is generally perpendicular to said reference plane and wherein, in the second position, said hub is adjacent and parallel to said reference plane. 2. The folding chassis of claim 1, wherein said arm configured to pivot around an axis positioned at acute angles to said reference plane and to a plane perpendicular to said reference plane. 3. The folding chassis of claim 2, wherein said axis positioned at a first angle to said reference plane in a range from about 15 to 55° and at a second angle to the plain perpendicular to said reference plane in a range from about 30 to 75°. 4. The folding chassis of claim 1, wherein said plurality of wheels comprise three wheels positioned symmetrically relative to said axle. 5. The folding chassis of claim 1, wherein said arm comprises a guard member for preventing interference between a load and said plurality of wheels. 6. The folding chassis of claim 1, further comprising a platform, said platform configured to pivot from being generally perpendicular to said frame to been generally adjacent and parallel to said frame. 7. The folding chassis of claim 6, wherein said arm and said platform are configured to support each other in the position of said hub being generally perpendicular to said reference plane and said platform being generally perpendicular to said frame. 8. The folding chassis of claim 6, further comprising a first support with a first link and a second support with a second link, wherein said first support is rotatably attached to said platform with said first link connecting said first support to said frame and said second support rotatably attached to said frame with said second link connecting said second support to said platform. 9. The folding chassis of claim 1, further comprising a handle configured to extend said frame and a detachable carrier with a rim and a brace, wherein said rim is attachable to said handle at a plurality of levels and said frame configured to support said brace. 10. A folding stroller chassis, comprising: a frame having a reference plane;an arm with an axle, said arm rotatably attached to said frame;a platform pivotally attached to said frame and linked to said arm, said platform configured to pivot within a predetermined range relative to said reference plane; anda hub having a plurality of wheels, said hub rotatably disposed onto said axle;wherein said plurality of wheels has a diameter at least equal to a half of a width of said frame, each of said plurality of wheels is rotatably attached to said hub around an axis parallel to said axle, and said arm configured to pivot between at least a first and a second positions of said hub, wherein, in the first position, said hub is generally perpendicular to said reference plane and wherein, in the second position, said hub is adjacent and parallel to said reference plane. 11. The folding chassis of claim 10, wherein said arm configured to pivot around an axis positioned at acute angles to said reference plane and to a plane perpendicular to said reference plane. 12. The folding chassis of claim 10, further comprising a first support and a second support, wherein said first support pivotally attached to said frame, said second support pivotally attached to said platform and said first support, and said first and second supports configured to be fixable relative to one another in at least one position. 13. The folding chassis of claim 10, wherein said plurality of wheels includes three wheels positioned symmetrically relative to said axle. 14. The folding chassis of claim 10, further comprising at least one caster configured to pivot relative to said platform and be fixable relative to said platform in at least one position.
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