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    • 49. 发明申请
    • Rocker arm
    • 摇臂
    • US20060107916A1
    • 2006-05-25
    • US11322359
    • 2006-01-03
    • Katsufumi Abe
    • Katsufumi Abe
    • F01L1/18
    • B21K1/205F01L1/185F01L1/20F01L2101/00F01L2103/00F01L2105/00Y10T29/49295Y10T74/20882Y10T74/2107
    • There is provided a rocker arm of a kind in which even though the rocker arm is manufactured by the use of a press working technique the arm width can be minimized while the flat outer surface region of a required width is secured on an outer surface of the connecting wall, thereby contributing to reduction in size and weight of the rocker arm. This rocker arm is capable of being driven by a cam for selectively opening and closing a valve of an internal combustion engine. This rocker arm includes an arm body prepared by bending a single plate material to represent a generally inverted U-shaped section including opposite side walls and a connecting wall bridging between the opposite side walls. A roller engageable with the cam is rotatably mounted on a portion of the arm body generally intermediate of the length thereof. A valve drive element is mounted on one end of the arm body for driving the valve, while an end portion of the connecting wall adjacent the other end of the arm body is formed with an internally helically threaded hole for threadingly receiving therein an externally helically threaded pivot member. An outer chamfered corner delimited between an outer surface of the connecting wall and an outer surface of each of the opposite side walls and formed by bending is deformed to represent a plastically deformed portion so formed by means of a plastic deformation technique that the outer chamfered corner represents a small radius of curvature R.
    • 提供了一种摇臂,其中即使摇臂通过使用压力加工技术制造,臂宽度可以最小化,而所需宽度的平坦外表面区域固定在 连接壁,从而有助于减轻摇臂的尺寸和重量。 该摇臂能够由用于选择性地打开和关闭内燃机的阀的凸轮驱动。 该摇臂包括通过弯曲单个板材来代表包括相对侧壁的大致倒置的U形部分和在相对侧壁之间桥接的连接壁而制备的臂体。 与凸轮接合的滚子可旋转地安装在臂本体的大体中间的一部分上。 阀驱动元件安装在臂主体的一端,用于驱动阀,而连接壁的与臂体另一端相邻的端部形成有内螺纹螺纹孔,用于螺纹地接纳外螺纹螺纹 枢轴成员。 通过弯曲形成的连接壁的外表面和每个相对侧壁的外表面之间限定的外斜角变形,以形成通过塑性变形技术形成的塑性变形部分,外部倒角 表示小的曲率半径R.
    • 50. 发明授权
    • Rocker arm
    • 摇臂
    • US07021260B2
    • 2006-04-04
    • US11143640
    • 2005-06-03
    • Katsufumi Abe
    • Katsufumi Abe
    • F01L1/18
    • F01L1/181F01L1/182F01L1/185F01L1/20F01L2101/00F01L2103/00F01L2105/00F01L2105/02Y10T29/49295Y10T74/2107
    • A rocker arm 1 includes an arm body 4 prepared from a single plate material by means of a press work. The arm body 4 includes a pair of parallel side walls 5 and a connecting wall 6 bridging between the opposite side walls 5 and also having a pivot support hole 7 defined at a location generally intermediate of the length of the arm body 4. A roller support pin for rotatably supporting a roller 10 for driving engagement with a cam is mounted on one ends 1a of the opposite side walls 5, while the opposite end 1b of the connecting wall 6 defines an overlapped structure 13 formed by bending an end overlap piece 12, extending integrally from a side edge of the connecting wall 6, backwardly to overlap the connecting wall 6. This overlapped structure 13 in turn defines an adjustment element 16 having a mounting hole 15 defined therein for adjustably receiving a valve driving member 14. The rocker arm 1 may be designed to be an end pivot type, in which case the adjustment element 16 is provided with a pivot member.
    • 摇臂1包括通过压力加工由单个板材制备的臂体4。 臂主体4包括一对平行的侧壁5和连接壁6,该连接壁6桥接在相对的侧壁5之间,并且还具有限定在通常在臂体4的长度的中间的位置处的枢转支撑孔7。 用于可旋转地支撑用于与凸轮驱动接合的辊10的辊支撑销安装在相对侧壁5的一端部1a上,而连接壁6的相对端部1b限定了通过弯曲形成的重叠结构13 从连接壁6的侧边缘整体延伸的端部重叠件12向后延伸以与连接壁6重叠。 该重叠结构13又限定了一个调节元件16,该调节元件16具有限定在其中的安装孔15,用于可调节地接收阀驱动构件14。 摇臂1可以设计成端枢轴型,在这种情况下,调节元件16设置有枢转构件。