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101 条记录 (耗时 0.015 秒)

    Lawnmower cutting deck with angled cutter shafts
    1.
    发明授权
    Lawnmower cutting deck with angled cutter shafts 有权

    公开(公告)号：US11051449B2

    公开(公告)日：2021-07-06

    申请号：US17043261

    申请日：2019-03-13

    申请人： HUSQVARNA AB

    发明人： Rickard Bergh ,  Willy Olofsson

    IPC分类号： A01D34/44 ,  A01D34/535 ,  A01D34/43 ,  A01D101/00

    摘要： A lawnmower cutting deck (1) is disclosed, wherein the cutting deck (1) is configured to be moved in a forward direction (d1) over a ground surface (5) to cut grass. The cutting deck (1) comprises at least a first cutter shaft (7.1) and at least one cutting unit (9) arranged on the first cutter shaft (7.1). The first cutter shaft (7.1) is configured to rotate around a first rotational axis (ax1) extending substantially parallel to the ground surface (5) to rotate the at least one cutting unit (9) in a first rotational plane (p1). The first rotational plane (p1) is angled in relation to the forward direction (d1). The present disclosure further relates to a lawnmower (3, 3′) comprising a lawnmower cutting deck (1) and a method (100) of mowing a lawn.

    Agricultural working device
    2.
    发明授权
    Agricultural working device 有权

    公开(公告)号：US10993370B2

    公开(公告)日：2021-05-04

    申请号：US16179034

    申请日：2018-11-02

    申请人： Müthing GmbH & Co. KG

    发明人： Martin Arnold ,  Michael Müthing

    IPC分类号： A01D43/08 ,  A01B63/32 ,  A01D34/03 ,  A01D75/18 ,  A01D34/00 ,  A01G3/00 ,  A01B33/16 ,  A01B35/28 ,  A01F29/09 ,  A01D34/535 ,  A01B33/10

    摘要： An agricultural working device, such as a mulcher, is improved with a working rotor which is driven by a drive shaft and a cutting rail with a cutting edge which can be directed towards the working rotor. Sensors for acquiring parameters of working rotor and/or cutting rail are provided. An electronic control apparatus is provided with at least one encoder to set the cutting rail. A method for setting the position of a cutting rail of a working device, such as a mulcher, relative to a working rotor, is configured in such a way that the rotational speed of a drive shaft and the rotational speed of the working rotor are measured and compared with one another. When a ratio of the rotational speeds differs by a predefined threshold, a change in the position of the cutting rail is brought about.

    Detachable knife assembly for a flail machine
    5.
    发明授权
    Detachable knife assembly for a flail machine 失效
    可拆卸刀组件，用于连枷机

    公开(公告)号：US5117620A

    公开(公告)日：1992-06-02

    申请号：US653763

    申请日：1991-02-11

    申请人： Ronald D. Gillund

    发明人： Ronald D. Gillund

    IPC分类号： A01D34/52 ,  A01D34/535

    CPC分类号： A01D34/52 ,  A01D34/535 ,  Y10S56/17

    摘要： A detachable knife assembly having a hanger bracket forming a curved end. The curved end defines an opening large enough to fit the curved end of the hanger bracket over a mounted hanger rod. A retaining bracket is positioned adjacent the hanger bracket and close enough to the curved end of the hanger bracket to enclose and retain the hanger rod within the hanger bracket opening. A knife blade is either a part of or secured to the hanger bracket. The retaining bracket is detachably secured to the hanger bracket. The curved end of the hanger bracket preferably forms a curve about an arc segment of approximately 180.degree..

    Blade assembly for flail mower
    6.
    发明授权
    Blade assembly for flail mower 失效
    叶片组件

    公开(公告)号：US3831359A

    公开(公告)日：1974-08-27

    申请号：US38399673

    申请日：1973-07-30

    申请人： MATHEWS B

    发明人： MATHEWS B

    IPC分类号： A01D34/535 ,  A01D55/22

    CPC分类号： A01D34/535

    摘要： A blade assembly for a loop type blade mount of a flail rotor comprises two side slicer blades and a common supporting link. The link has a straight shank portion which is received in the loop type blade mount and removably secured therein by a clinch nut. It also has a curved portion which provides a partially closed loop on which the blades are mounted. The clearance between the free end of the curved portion and the mount surface is less than the blade thickness to prevent removal of either blade unless the link is first withdrawn from the blade mount. The side slicer blades are widest at the bend to provide a protruding edge which prevents grass stems from wedging in the crevice between the blade shanks.

    摘要翻译： 用于连枷转子的环形刀片安装件的刀片组件包括两个侧切片刀片和公共支撑连杆。 连杆具有直柄部分，其被接收在环形刀片安装件中，并通过夹紧螺母可拆卸地固定在其中。 它还具有弯曲部分，其提供其上安装有叶片的部分闭合的环。 弯曲部分的自由端与安装表面之间的间隙小于叶片厚度，以防止任何一个叶片的移除，除非连接件首先从叶片安装件中取出。 侧切片刀片在弯曲处最宽，以提供突出边缘，防止草茎楔在叶片柄之间的缝隙中。

    Mower blade and connection therefor
    7.
    发明授权
    Mower blade and connection therefor 失效
    风机叶片及其连接件

    公开(公告)号：US3678668A

    公开(公告)日：1972-07-25

    申请号：US3678668D

    申请日：1970-09-25

    申请人： MOTT CORP

    发明人： MOTT CARL W

    IPC分类号： A01D34/535 ,  A01D55/22

    CPC分类号： A01D34/535

    摘要： A connection for attaching a mower blade directly to a lug provided on a mower shaft. The blade comprises a pair of resilient fingers cooperating with an opening provided in the lug. The opening in the lug may be circular or non-circular having a long and a short dimension. The long dimension of the non-circular opening is such that when the blade is turned to the long dimension and the fingers are compressed, the fingers will pass through the opening. The short dimension is such that when the blade is turned to such short dimension, the blade cannot be compressed sufficiently to be removed from the opening of the lug. The blade may be removed from the circular opening, regardless of the position of the blade in the opening, by compressing the blade. To connect the blade to the lug of the shaft, the fingers of the blade are gripped in a tool and compressed, and the compressed fingers are then inserted into the opening in the lug. Notches provided in the edges of the fingers are aligned with the margin of the opening in the lug, and the fingers are then released so that the notches loosely engage the lug to retain the blade on the lug. By a converse operation the blade may be removed from the lug.

    摘要翻译： 用于将割草机叶片直接连接到设置在割草机轴上的凸耳的连接件。 叶片包括与设置在凸耳中的开口配合的一对弹性手指。 凸耳中的开口可以是圆形或非圆形的，具有长而短的尺寸。 非圆形开口的长尺寸使得当刀片转向长尺寸并且手指被压缩时，手指将穿过开口。 短尺寸使得当刀片转动到这样的短尺寸时，刀片不能被充分压缩以从凸耳的开口移除。 通过压缩叶片，叶片可以从圆形开口移除，而不管叶片在开口中的位置如何。 为了将叶片连接到轴的凸耳，将刀片的手指夹在工具中并压缩，然后将压缩的指状物插入到凸耳中的开口中。 在手指边缘设置的切口与凸耳中的开口的边缘对准，然后释放指状物，使得凹口松动地接合凸耳以将刀片保持在凸耳上。 通过相反的操作，刀片可以从凸耳上移除。

    Flail mower
    8.
    发明授权
    Flail mower 失效
    FLAIL MOWER

    公开(公告)号：US3645076A

    公开(公告)日：1972-02-29

    申请号：US3645076D

    申请日：1970-03-20

    申请人： RANSOMES SIMS & JEFFERIES LTD

    发明人： ALDRED EDWARD JOHN

    IPC分类号： A01D34/52 ,  A01D34/535 ,  A01D55/20

    CPC分类号： A01D34/535 ,  A01D34/52

    摘要： 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.

    摘要翻译： 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。