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3. 发明申请

WO2011061585A3 FOUR-WHEELED VEHICLE 审中-公开
标题翻译：四轮车
公开(公告)号：WO2011061585A3
公开(公告)日：2012-07-26
申请号：PCT/IB2010002761
申请日：2010-10-27
申请人： PIAGGIO & C SPA , LAMBRI MARCO , MARANO LUCA , SCOTTI DAVIDE FABIO
发明人： LAMBRI MARCO , MARANO LUCA , SCOTTI DAVIDE FABIO
IPC分类号： B62D31/00 , B62D23/00
CPC分类号： B62D31/003 , B60G2204/18 , B60G2300/13 , B62D23/005
摘要： Herein described is a vehicle (10) comprising a bearing frame (12) of the tubular trestle type, two front steered wheels (14, 16), two rear wheels (18, 20) with fixed axis (144), an engine unit (22), steering means (24) through which it is possible to operate on the front wheels (14, 16), a front suspension unit (26), connecting the frame (12) to the front wheels (14, 16), a rear suspension unit (28), connecting the frame (12) to the rear wheels (18, 20), a transmission unit, interposed between the engine unit (22) and the axle shafts of the rear wheels (18, 20), a seat (44) for the driver of the vehicle (10), arranged at a central position with respect to such vehicle (10), and at least two seats (44') for the passengers of the vehicle (10) adjacent to each other, arranged laterally and receded according to a predefined distance with respect to the seat (44) for the driver of the vehicle (10). The engine unit (22) is elastically constrained with respect to the rear suspension unit (28) through at least one suspension mechanism (72, 74; 84, 90, 92), which provides a first level for filtering the stresses generated by the operation of the engine unit (22) and so that such rear suspension unit (28) is capable of supporting the overall weight of the engine unit (22). In turn, the rear suspension unit (28) is elastically constrained to the frame (12) through at least one auxiliary suspension mechanism (96, 98) which, alongside the elasticity of the tyres of the rear wheels (18, 20), forms a second level for filtering the stresses generated by the operation of the engine unit (22). In the respective rebound and roll motions with respect to the frame (12) of the vehicle (10), the rear suspension unit (28) is vertically guided and constrained transversely by a leaf -spring- shaped flexible element (122). The rear suspension unit (28) is fixed to the frame (12) by means of only two bushings (138, 132), so as to reduce the times and costs of assembling the vehicle (10).
摘要翻译：这里描述的是一种车辆（10），包括管状支架类型的轴承框架（12），两个前转向轮（14,16），具有固定轴线（144）的两个后轮（18,20），发动机单元 22），可以在前轮（14,16）上操作的转向装置（24），将框架（12）连接到前轮（14,16）的前悬架单元（26）将框架（12）连接到后轮（18,20）的后悬架单元（28），设置在发动机单元（22）和后轮（18,20）的车轴之间的传动单元，布置在相对于这种车辆（10）的中心位置的用于车辆（10）的驾驶员的座椅（44）和用于车辆（10）的乘客彼此相邻的至少两个座位（44'）相对于用于车辆（10）的驾驶员的座（44），预定的距离横向排列并后退。发动机单元（22）通过至少一个悬架机构（72,74; 84,90,92）相对于后悬架单元（28）弹性约束，所述悬架机构（72,74; 84,90,92）提供用于过滤由操作产生的应力的第一水平并且使得这种后悬架单元（28）能够支撑发动机单元（22）的总重量。后悬挂单元（28）又通过至少一个辅助悬架机构（96,98）弹性约束到框架（12），辅助悬架机构（96,98）与后轮（18,20）的轮胎的弹性一起形成用于过滤由所述发动机单元（22）的操作产生的应力的第二水平。在相对于车辆（10）的框架（12）的相应的回弹和滚动运动中，后悬架单元（28）被横向地由叶簧形弹性元件（122）引导和约束。后悬挂单元（28）仅通过两个衬套（138,132）固定到框架（12）上，以减少组装车辆（10）的时间和成本。

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