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1. 发明授权

US4535869A Saddle riding type motorcar having four wheels 失效
标题翻译：具有四轮的马鞍式摩托车
公开(公告)号：US4535869A
公开(公告)日：1985-08-20
申请号：US462236
申请日：1983-01-31
申请人： Shinobu Tsutsumikoshi , Akira Goto , Tsuyoshi Murakami , Masao Takasaka , Yoshiki Shinohara
发明人： Shinobu Tsutsumikoshi , Akira Goto , Tsuyoshi Murakami , Masao Takasaka , Yoshiki Shinohara
IPC分类号： B62K5/01 , B62J15/00 , B62K5/00 , B62K11/02
CPC分类号： B62K5/01
摘要： A new and unique saddle-riding type motorcar having four wheels comprising two front wheels and two rear wheels, wherein each of the front and rear wheels has a balloon tire mounted thereon and only the front wheels are rotatably supported on axles in such a manner as to turn in both directions relative to the longitudinal axis of the motorcar and the latter is steered by steering the front wheels by means of a bar handle constituting a steering mechanism. The motorcar includes a frame structure comprising a pair of upper frames, a pair of lower frames and a plurality of spacer frames, said pair of upper frames comprising a pair of fore-end portions extending downward from a bent portion at a forward inclination angle and a pair of inclined portions extending rearward by a certain distance from said bent portion at a gentle downward slope, said pair of lower frames being fixedly connected to the pair of upper frames by way of a fore axle at their fore end and by way of vertically extending frames at their rear end and said spacer frames extending in the transverse direction relative to the upper and lower frames so as to connect one of the upper frames to the other and one of the lower frames to the other. A steering head is located at the bent portion of the upper frames. Supporting sections are disposed at both the end-parts of the fore axle and at the rearmost end-parts of the lower frames to support the wheels. A suspension mechanism may be disposed at least on one of the front wheels and the rear wheels and each of the rear wheels may include an independent driving axle adapted to be swingably supported by means of an independent swing arm and an independent suspension mechanism.
摘要翻译：一种独特的鞍式摩托车，具有四个车轮，包括两个前轮和两个后轮，其中前轮和后轮中的每一个都安装有气球轮胎，只有前轮可转动地支撑在车轴上，相对于汽车的纵向轴线在两个方向上转动，并且后者通过构成转向机构的杆把手转向前轮来转向。该汽车包括一框架结构，该框架结构包括一对上框架，一对下框架和多个间隔框架，所述一对上框架包括从弯曲部分向前倾斜的角度向下延伸的一对前端部分，一对倾斜部分，以一个平缓的向下倾斜向后延伸一定距离的所述弯曲部分，所述一对下部框架通过前轴在其前端和垂直方向上固定地连接到所述一对上部框架在其后端延伸框架，并且所述间隔框架相对于上框架和下框架在横向方向上延伸，以便将上框架中的一个与另一框架和下框架中的一个连接。转向头位于上框架的弯曲部分。支撑部分设置在前轴的两端部和下框架的最后端部，以支撑车轮。悬挂机构可以设置在前轮和后轮中的至少一个上，并且每个后轮可以包括独立的驱动轴，其适于通过独立的摆臂和独立的悬挂机构可摆动地支撑。

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