公开(公告)号：US4989665A

公开(公告)日：1991-02-05

申请号：US287062

申请日：1988-12-21

申请人： Toshio Yamagiwa ,  Shigehiro Maruoka ,  Keiji Suzuki ,  Takeo Horiike

发明人： Toshio Yamagiwa ,  Shigehiro Maruoka ,  Keiji Suzuki ,  Takeo Horiike

IPC分类号： B62K11/04 ,  B62K19/12

CPC分类号： B62K11/04 ,  B62K19/12

摘要： A casting mold is provided for a body frame for a motorcycle including a head pipe for supporting a rotary shaft for a handle, a pair of left and right main body frame elements, connected to the head pipe and extending rearwardly of a car body, a pair of left and right engine supporting members, connected to and extending downwardly from the main body frame elements adjacent to said head pipe, and a horizontally extending frame element connecting said left and right main body frame elements to each other at intermediate portions in the longitudinal direction. The engine is supported at least at a lower end portion of the left and right engine supporting members and intermediate portions in the longitudinal direction of the left and right main body frame elements and an upper end portion of a shock absorber is connected to the horizontally extending frame elements. A cast body frame is constructed of a light alloy and assembled by joining a leftward and a rightward divided block formed in shapes being vertically divided at the head pipe portion to each other. The main body frame elements are formed from a tubular member having a rectangular cross section wherein the widths of the opposite side walls are larger relative to the widths of upper and lower walls, and the widths of the side walls gradually vary from a front end portion connected to the head pipe to a rear end portion for forming at least a smaller area between the front end portion to the rear end portion.

公开(公告)号：US5375677A

公开(公告)日：1994-12-27

申请号：US876912

申请日：1992-04-30

申请人： Toshio Yamagiwa ,  Shigehiro Maruoka ,  Keiji Suzuki ,  Takeo Horiike

发明人： Toshio Yamagiwa ,  Shigehiro Maruoka ,  Keiji Suzuki ,  Takeo Horiike

IPC分类号： B62K11/04 ,  B62K19/12

CPC分类号： B62K11/04 ,  B62K19/12

摘要： A body frame for a motorcycle including a head pipe for supporting a rotary shaft for a handle, a pair of left and right main body frame elements, connected to the head pipe and extending rearwardly of the head pipe, a pair of left and right engine supporting members, connected to and extending downwardly from the main body frame elements adjacent to said head pipe, and a horizontally extending frame element connecting said left and right main body frame elements to each other at intermediate portions in the longitudinal direction. The engine is supported at least at a lower end portion of the left and right engine supporting members and intermediate portions in the longitudinal direction of the left and right main body frame elements and an upper end portion of a shock absorber is connected to the horizontally extending frame elements. A cast body frame is constructed of a light alloy and assembled by joining a leftward and a rightward divided block formed in shapes being vertically divided at the head pipe portion to each other. The main body frame elements are formed from a tubular member having a rectangular cross section wherein the widths of the opposite side walls are larger relative to the widths of upper and lower walls, and the widths of the side walls gradually vary from a front end portion connected to the head pipe to a rear end portion for forming at least a smaller area between the front end portion to the rear end portion.

摘要翻译： 一种用于摩托车的车架，包括用于支撑用于手柄的旋转轴的头管，连接到头管并从头管向后延伸的一对左右主体框架元件，一对左右引擎 从与所述头管相邻的主体框架元件连接并向下延伸的支撑构件以及在纵向方向上的中间部分处将所述左主体框架元件和右主体框架元件彼此连接的水平延伸的框架元件。 发动机至少在左右发动机支撑构件的下端部分和左主体框架元件的纵向方向上的中间部分被支撑，并且减震器的上端部连接到水平延伸的 框架元素。 铸造体框架由轻合金构成，并通过将在头管部分上垂直分割的形状形成的左右分割块接合而组装。 主体框架元件由具有矩形横截面的管状构件形成，其中相对侧壁的宽度相对于上壁和下壁的宽度较大，并且侧壁的宽度从前端部分逐渐变化 连接到头管到后端部分，用于在前端部分与后端部分之间形成至少较小的区域。