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    • 7. 发明授权
    • Roller for reel type lawn mowers
    • 滚轮式拉丝机
    • US3662528A
    • 1972-05-16
    • US3662528D
    • 1970-06-10
    • JACOBSEN MFG CO
    • AKGULIAN SAHAG CHAFFNER DONALD G
    • A01D34/62A01D55/20
    • A01D34/62A01D2101/00
    • A roller for a lawn mower of the reel type, and with the roller extending for the length of the reel and across the width of the mower. The roller is rotatably mounted, and it has large diameter portions on opposite ends, and it has a small diameter portion in the middle of the length of the roller. The end large portions engage the ground and support the mower at the spaced-apart locations of the large portions, and the smaller diameter middle portion of the roller presents an anti-scalping member for the mower. The roller includes a base tube or cylinder, and rotation bearings fit within the ends of the tube for rotatably supporting the roller on the mower. The large diameter portion is shown to be a plurality of rubber rings which are pressed onto the ends of the tube and which therefore rotate with the tube, as one rotatable roller.
    • 一种用于割草机割草机的辊子,并且辊子延伸到卷轴的长度并且横过割草机的宽度。 辊可旋转地安装,并且在相对端部具有大直径部分,并且在辊的长度的中间具有小直径部分。 末端大部分接合地面并且在大部分的间隔开的位置处支撑割草机,并且辊的较小直径中间部分设置用于割草机的抗烫伤部件。 辊子包括基管或圆筒,旋转轴承配合在管的端部内,用于将辊子可旋转地支撑在割草机上。 大直径部分被示出为多个橡胶环,其被压在管的端部上,并且因此与管一起旋转作为一个可旋转辊。
    • 8. 发明授权
    • Flail mower
    • FLAIL MOWER
    • US3645076A
    • 1972-02-29
    • US3645076D
    • 1970-03-20
    • RANSOMES SIMS & JEFFERIES LTD
    • ALDRED EDWARD JOHN
    • A01D34/52A01D34/535A01D55/20
    • A01D34/535A01D34/52
    • A flail mower has cutting blades suspended by flail rods from a horizontal rotatable shaft. The center portion of each rod is curved through 90* to form a radial arm and a pivot arm at opposite ends of the rod. The pivot arm is a close sliding and rotational fit in an aperture in a lug on the shaft, the axis of the aperture being parallel to the axis of the shaft. The pivot arm is located in position by a detachable spring clip on the distal end of the pivot arm, so that the flail rod and blade can be removed from the shaft by detaching the clip and sliding the pivot arm end of the rod out of the aperture. The radial arm extends through an aperture in the cutting blade and is formed with an enlarged head which retains the blade on the arm when subjected to centrifugal force upon rotation of the shaft. The blade is slidable along the radial arm and then along the pivot arm for removal from the rod when the rod is removed from the shaft.
    • 连枷割草机具有由水平旋转轴的连枷杆悬挂的切割刀片。 每个杆的中心部分弯曲90度,以形成一个径向臂和在杆的相对端的枢转臂。 枢转臂是在轴上的凸耳中的孔中的紧密滑动和旋转配合,孔的轴线平行于轴的轴线。 枢转臂通过枢转臂的远端上的可分离的弹簧夹定位在位置,使得可以通过分离夹子并将杆的枢转臂端部滑出 光圈。 径向臂延伸穿过切割刀片中的孔,并且形成有扩大的头部,当轴旋转时受到离心力时将刀片保持在臂上。 刀片沿着径向臂可滑动,然后沿着枢转臂滑动,以便当杆从轴上移除时从棒上移除。