IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0811145
(2011-07-15)
|
등록번호 |
US-8827295
(2014-09-09)
|
우선권정보 |
FR-10 55986 (2010-07-22) |
국제출원번호 |
PCT/FR2011/051700
(2011-07-15)
|
§371/§102 date |
20130308
(20130308)
|
국제공개번호 |
WO2012/010784
(2012-01-26)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Birch, Stewart, Kolasch & Birch, LLP
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
2 |
초록
▼
A front end device (1) for a vehicle comprising: a steering shaft (2) capable of being connected to a steering column (3) of the chassis of the vehicle by a connection having a degree of freedom in rotation,an upper fork crown (4) connected to the steering shaft,a lower fork crown (5) connected to t
A front end device (1) for a vehicle comprising: a steering shaft (2) capable of being connected to a steering column (3) of the chassis of the vehicle by a connection having a degree of freedom in rotation,an upper fork crown (4) connected to the steering shaft,a lower fork crown (5) connected to the steering shaft,an upper fork arm (6a, 6b) fixed to said upper and lower fork crowns,a lower fork arm (7a, 7b), connected to the upper fork arm, by means of a deformable parallelogram-type connection, by means of one upper middle arm (8) and two lower middle arms (9a, 9b), articulated at their two ends on said upper fork arm and the lower fork arm, respectively,a single steered front wheel (10), rotatably mounted on the lower fork arm,suspension means (11) providing a damped elastic connection between the lower fork arm and the upper fork arm,the articulated upper middle arm (8) and the articulated lower middle arm (9a, 9b) being arranged below the lower fork crown (5) and extending to the front of said upper fork arm. Vehicle equipped with such a front end device.
대표청구항
▼
1. A front end device for a vehicle comprising: a steering shaft configured to be connected to a steering column of a chassis of the vehicle by a connection having a degree of freedom in rotation,an upper fork crown connected to said steering shaft,a lower fork crown connected to said steering shaft
1. A front end device for a vehicle comprising: a steering shaft configured to be connected to a steering column of a chassis of the vehicle by a connection having a degree of freedom in rotation,an upper fork crown connected to said steering shaft,a lower fork crown connected to said steering shaft,at least one upper fork arm fixed to said upper and lower fork crowns,at least one lower fork arm connected to said at least one upper fork arm, by a deformable parallelogram connection, said connection comprising at least one upper middle arm and at least one lower middle arm articulated at their two ends on said at least one upper fork arm and at least one lower fork arm, respectively,a single steered front wheel rotatably mounted on said at least one lower fork arm,a suspension providing a damped elastic connection between said at least one lower fork arm and said at least one upper fork arm, wherein said at least one upper articulated middle arm and lower articulated middle arm are arranged below the lower fork crown and extend to the front of said at least one upper fork arm. 2. The front end device as claimed in claim 1, comprising pivot pins connecting said at least one upper middle arm and lower middle arm to said at least one upper fork arm and arranged below the lower fork crown. 3. The front end device as claimed in claim 1, wherein the suspension comprises at least one shock absorber arranged in front of said at least one upper fork arm, wherein a lower end of said shock absorber is connected to said at least one upper middle arm. 4. The front end device as claimed in claim 3, wherein said at least one upper middle arm is a unitary piece and said shock absorber is arranged in the plane of the single front wheel. 5. The front end device as claimed in claim 4, wherein an upper end of said shock absorber is connected in the area of the upper fork crown. 6. The front end device as claimed in claim 1, wherein a pivot pin connects said at least one upper middle arm to at least one lower fork arm adjacent to the tire of the single front wheel. 7. The front end device as claimed in claim 1, wherein the upper middle arm has a U-shape of which the free ends of the branches of the U-shape are articulated on the lower parts of the at least one upper fork arms below the lower fork crown, and of which the base of the U-shape is articulated on the upper end of the lower fork arm. 8. The front end device as claimed in claim 1, comprising right and left upper fork arms, fixed to two lateral ends of the upper and lower fork crowns, respectively, further comprising lower right and left fork arms arranged on opposite sides of the single front wheel, said lower right and left fork arms respectively connected to said upper right and left fork arms by said deformable parallelogram connection, said parallelogram connection comprising a single unitary upper middle arm and individual right and left lower middle arms. 9. The front end device as claimed in claim 8, wherein said individual lower middle arms are respectively arranged on opposite sides of the single front wheel. 10. The front end device as claimed in claim 9, comprising joints located at the ends of said individual right and left lower middle arms, wherein said joints are respectively arranged on the right-hand side and the left-hand side of the single front wheel, a projection of the joints of the right-hand lower middle arm on the joints of the left-hand lower middle arm, in a direction parallel to the axis of rotation of the front wheel intercepting said front wheel. 11. The front end device as claimed in claim 1, further comprising an adjustor for adjusting the distance between the points of connection of said at least one upper middle arm and said at least one lower middle arm on said at least one upper fork arm, on the one hand, and the lower fork crown, on the other hand. 12. The front end device (1) as claimed in claim 11, wherein said at least one upper fork arm has a cylindrical shape in engagement in the upper and lower fork crowns, the position where the fork crowns are fixed to said at least one upper fork arm being adjustable along at least part of the cylindrical shape. 13. The front end device as claimed in claim 12, wherein the cylindrical shape of said at least one upper fork arm has a circular cross section clamped in engagement with at least one housing formed in each of the upper and lower fork crowns, respectively, the cross-section of said housing being complementary to the circular cross section of the upper fork arm. 14. The front end device (1) as claimed in claim 3, wherein an upper end of said shock absorber is connected to the upper fork crown by a connection having at least one degree of freedom in translation, permitting an adjustable position of said upper end of the shock absorber relative to the upper fork crown. 15. A vehicle comprising multiple wheels, including one wheel supported by a front end device as claimed in claim 1. 16. The vehicle as claimed in claim 15, wherein said at least one upper middle arm and at least one lower middle arm are respectively arranged in two substantially parallel and horizontal planes when said vehicle and said front end device are in a stopped position, under the load of the weight of the vehicle. 17. The vehicle as claimed in claim 15, wherein said at least one lower fork arm is arranged in a substantially vertical plane passing through the axis of rotation of the front wheel when said vehicle and said front end device are in a stopped position, under the load of the weight of the vehicle. 18. The vehicle as claimed in claim 15, further comprising an adjustor for adjusting the distance between points of connection of said at least one upper middle arm and said at least one lower middle arm on said at least one upper fork arm, on the one hand, and the lower fork crown, on the other hand, in order to adjust the vehicle trim. 19. The vehicle as claimed in claim 15, wherein said at least one upper fork arm, said at least one lower fork arm, said at least one upper middle arm and at least one lower middle arm are connected, thereby defining said deformable parallelogram connection, whereby: said front end device is reconfigurable between two positions:a first detent position, anda second compressed position, andthe wheelbase of the vehicle is substantially constant during the reconfiguration of the front end device between said two positions. 20. The front end device as claimed in claim 2, wherein the suspension comprises at least one shock absorber arranged in front of said at least one upper fork arm, wherein one lower end of the shock absorber is connected to said at least one upper middle arm.
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