公开(公告)号：US06959530B2

公开(公告)日：2005-11-01

申请号：US10912720

申请日：2004-08-05

申请人： Kent Thompson ,  Rustin V. Bentzinger

发明人： Kent Thompson ,  Rustin V. Bentzinger

IPC分类号： A01D34/73

CPC分类号： A01D34/733 ,  A01D34/736 ,  Y10S56/20 ,  Y10T29/49721

摘要： An improved mounting arrangement for a knife to a disc for use on a rotary disc cutter that eliminates the need for a threaded connector and the associated nut is disclosed. It also provides a positive retention method on the top side of the disc. In addition, it provides a method of removing the knife from the disc without the use of wrenches, simply requiring a tool for prying, such as a screw driver. A further feature is a low profile retainer that does not need to be protected by a wear protector.

公开(公告)号：US06688090B2

公开(公告)日：2004-02-10

申请号：US10322472

申请日：2002-12-19

申请人： James D. Velke ,  William R. Wright

发明人： James D. Velke ,  William R. Wright

IPC分类号： F16M700

CPC分类号： A01D34/001 ,  A01D34/6806 ,  A01D34/69 ,  A01D34/82 ,  A01D2034/6843 ,  A01D2101/00 ,  B62D11/183 ,  B62D51/02 ,  B62D51/04 ,  Y10S56/18 ,  Y10S56/20 ,  Y10T74/20012 ,  Y10T74/20402 ,  Y10T74/2042 ,  Y10T74/2078

摘要： A zero turning radius power lawn mower for operation by a standing occupant includes first and second independently driven and controlled rear drive wheels mounted on separate drive axles. A riding platform for supporting the standing occupant or operator is located between the first and second rear drive wheels. The rear drive wheels are independently driveable in both the forward and reverse directions at variable speeds so as to allow for substantially zero radius turning of the mower about a central turning point. The riding platform is positioned near this turning point or axis so that the standing occupant remains substantially unaffected by centrifugal force created during approximate zero radius turning of the mower thereby allowing the mower to take such turns at higher speeds. The low center of gravity created by the position of the riding platform for the standing operator also results in the mower having improved traction and being less likely to pop “wheelies” upon acceleration.

摘要翻译： 用于由站立乘员操作的零转弯半径功率割草机包括安装在单独驱动轴上的第一和第二独立驱动和受控的后驱动轮。 用于支撑站立乘客或操作者的骑乘平台位于第一和第二后驱动轮之间。 后驱动轮可以以可变速度在前后方向上独立地驱动，从而允许割草机围绕中心转折点基本上为零半径的转动。 骑乘平台位于该转折点或轴线附近，使得站立乘员基本上不受由割草机近似零半径转动期间产生的离心力的影响，从而允许割草机以更高速度进行这种转弯。 由立式操作者的骑乘平台的位置产生的低重心也导致割草机具有改进的牵引力，并且在加速时不太可能弹出“轮椅”。

公开(公告)号：US06516596B2

公开(公告)日：2003-02-11

申请号：US09927505

申请日：2001-08-13

申请人： James D. Velke ,  William R. Wright

发明人： James D. Velke ,  William R. Wright

IPC分类号： F16M700

CPC分类号： A01D34/001 ,  A01D34/6806 ,  A01D34/69 ,  A01D34/82 ,  A01D2034/6843 ,  A01D2101/00 ,  B62D11/183 ,  B62D51/02 ,  B62D51/04 ,  Y10S56/18 ,  Y10S56/20 ,  Y10T74/20012 ,  Y10T74/20402 ,  Y10T74/2042 ,  Y10T74/2078

摘要： A zero turning radius power lawn mower for operation by a standing occupant includes first and second independently driven and controlled rear drive wheels mounted on separate drive axles. A riding platform for supporting the standing occupant or operator is located between the first and second rear drive wheels. The rear drive wheels are independently driveable in both the forward and reverse directions at variable speeds so as to allow for substantially zero radius turning of the mower about a central turning point. The riding platform is positioned near this turning point or axis so that the standing occupant remains substantially unaffected by centrifugal force created during approximate zero radius turning of the mower thereby allowing the mower to take such turns at higher speeds. The low center of gravity created by the position of the riding platform for the standing operator also results in the mower having improved traction and being less likely to pop “wheelies” upon acceleration.

公开(公告)号：US06434920B1

公开(公告)日：2002-08-20

申请号：US09612993

申请日：2000-07-10

申请人： Stephen Timothy Keane

发明人： Stephen Timothy Keane

IPC分类号： A01D3484

CPC分类号： A01D43/16 ,  Y10S56/17 ,  Y10S56/20

摘要： An auxiliary edge trimmer apparatus is attached to a lawnmower and includes a flywheel drive wheel portion connected to the lawnmower drive shaft. An attachment assembly is connected onto portions of the lower housing wall of the blade housing of the lawnmower. A trimmer assembly is attached to the attachment assembly and includes a bearing portion connected to the attachment assembly, a rotatable shaft assembly received by the bearing portion, a driven wheel connected to a proximal end of the rotatable shaft assembly, and a trimmer blade connected to a distal end of the rotatable shaft assembly. In accordance with an alternatively preferred embodiment of the invention, a manually actuatable control cable suitably is attached to the drive shaft supported on the lawnmower housing between the drive wheel and the auxiliary trimmer apparatus to control engagement and disengagement thereof. Additionally, the auxiliary trimmer assembly is angularly adjustable relative to the main rotation shaft axis of the lawnmower to assure precise control of the width of cut afforded by the auxiliary trimmer apparatus.

摘要翻译： 辅助边缘修剪器装置连接到割草机，并且包括连接到割草机驱动轴的飞轮驱动轮部分。 连接组件连接到割草机的叶片壳体的下壳体壁的部分上。 修剪器组件附接到附接组件，并且包括连接到附接组件的轴承部分，由轴承部分接收的可旋转轴组件，连接到可旋转轴组件的近端的从动轮和连接到 可旋转轴组件的远端。 根据本发明的替代优选实施例，手动致动控制缆索适当地附接到驱动轮和辅助修剪器装置之间的支撑在割草机壳体上的驱动轴，以控制其接合和分离。 此外，辅助修剪器组件相对于割草机的主旋转轴轴线可角度地调节，以确保精确地控制由辅助修剪器装置提供的切割宽度。

公开(公告)号：US6073430A

公开(公告)日：2000-06-13

申请号：US60388

申请日：1998-04-14

申请人： Paul W. Mullet ,  Elmer D. Voth ,  Brian L. Nebel

发明人： Paul W. Mullet ,  Elmer D. Voth ,  Brian L. Nebel

IPC分类号： A01D34/63 ,  A01D34/685 ,  A01D43/077 ,  A01D87/10 ,  A01D34/03 ,  A01D67/00

CPC分类号： A01D34/685 ,  A01D43/077 ,  A01D2101/00 ,  A01D34/63 ,  Y10S56/20

摘要： A multi-blade mower deck having a center right and left blade chambers, which are partially connected to each other, each blade chamber including a rotary mounted cutting blade with lifting sails thereon for rotating and lifting the air into each blade chamber, a front skirt defining portions of said blade chamber; a continuous rear skirt wrapping around rear portions of each of said blade chambers; and a fan chamber positioned above the cutting deck and concentrically aligned over the center blade chamber and having an opening into the center fan chamber including concentrically mounted impeller blades for driving air and clipping from the fan chamber through a exhaust passage positioned over the cutting deck.

摘要翻译： 一种多叶片割草机甲板，其具有彼此部分地连接的中心左右叶片室，每个叶片室包括：旋转安装的切割刀片，其上具有用于将空气旋转并提升到每个叶片室中的提升帆;前裙部 限定所述叶片室的部分; 围绕每个所述叶片室的后部的连续后裙部; 以及风扇室，其位于切割台面上方并同心地对准中心叶片室，并且具有通向中心风扇室的开口，该开口包括同心安装的叶轮叶片，用于驱动空气并且通过位于切割板上的排气通道从风扇室夹紧。

公开(公告)号：US6052979A

公开(公告)日：2000-04-25

申请号：US695780

申请日：1996-08-01

申请人： Alfred Tutschka

发明人： Alfred Tutschka

IPC分类号： A01D34/00 ,  A01D34/63

CPC分类号： A01D34/005 ,  A01D34/73 ,  A01D34/826 ,  A01D2101/00 ,  Y10S56/20

摘要： A blade for a rotary mower, in particular lawnmowers, with a cup-like downward open cover (21) for the seating of the blade (1) presenting two sails (4, 4') that are provided on their front longitudinal edges (5, 5') in the direction of rotation with cutting edges (6, 6). The cutting edges of the blade sails of the blade according to the present invention constitute several cutting planes, whereby the outer cutting edge section (8) within the region of the sail extremities is located below the plane of the blade's hub portion (3). To this outer cutting edge section (8, 8') is attached a central cutting edge section (10, 10') that curves above the plane of the hub portion (3) and changes over to an inner cutting edge section (13, 13') that drops off toward the hub portion (3). The sail extremities (7, 7'), of which the front longitudinal edges are positioned in the direction of rotation below the plane of the hub portion (3), are designed as guide surfaces (36, 36') at a slant with respect to the blade's plane of rotation, with such guide surfaces curving upwards from the front longitudinal edges of the blade's sails (4, 4') in the direction of rotation toward the rear longitudinal edges. The rear longitudinal edges in the direction of rotation of the blade's sails extend within or above the plane of the hub portion (3). The guide surfaces (36, 36') cause that the material cut by the outer cutting edge section (8, 8') is lifted, thus repeatedly reaching the sphere of action of the central and the inner cutting edge sections; this brings about that the cut material is repeatedly reduced in size until it is pulverized. The invention further relates to a rotary mower with a cup-like, downward open cover, in which is seated the blade according to the present invention. Further, the invention relates to a retrofit kit for a conventional lawnmower presenting a cover with a lateral ejection opening.

公开(公告)号：US6052976A

公开(公告)日：2000-04-25

申请号：US99576

申请日：1998-06-19

申请人： Richard L. Cellini ,  Jeffrey E. Zander

发明人： Richard L. Cellini ,  Jeffrey E. Zander

IPC分类号： A01D34/416 ,  A01D75/20 ,  A01D34/03

CPC分类号： A01D34/4167 ,  A01D75/206 ,  Y10S56/20 ,  Y10S56/24

摘要： A grass trimmer with a trimmer shield that can be manually assembled to the housing without the use of tools is disclosed. The trimmer shield can also preferably be disassembled from the housing by a consumer to allow for replacement of the trimmer shield. One preferred trimmer shield includes at least one retaining member that prevents translational movement of the trimmer shield and at least one retaining member that prevents deflection of the trimmer shield in a vertical direction.

摘要翻译： 公开了一种具有修剪器护罩的草地修剪器，其可以在不使用工具的情况下手动组装到壳体。 修剪器护罩还可以优选地由消费者从壳体拆卸以允许更换修剪器护罩。 一种优选的修剪器护罩包括至少一个保护构件，其防止修剪器护罩和防止修剪器护罩沿垂直方向偏转的至少一个保持构件的平移运动。

公开(公告)号：US5987863A

公开(公告)日：1999-11-23

申请号：US135926

申请日：1998-08-18

申请人： Garry W. Busboom ,  John C. Crumrine

发明人： Garry W. Busboom ,  John C. Crumrine

IPC分类号： A01D34/00 ,  A01D34/64 ,  A01D67/00

CPC分类号： A01D34/005 ,  A01D34/74 ,  A01D2101/00 ,  Y10S56/20

摘要： A multiblade lawn mower including a mower deck having a plurality of cutting blades rotatably disposed therein. A first flow control baffle is positioned in the mower deck between the cutting blades and the front wall of the mower deck and extends substantially continuously between the sides of the mower deck. A second flow control baffle is positioned in the mower deck rearwardly of the cutting blades. The first and second flow control baffles include a plurality of semi-circular baffle portions which define a plurality of open throat portions therebetween. A plurality of selectively removable mulcher baffles are positioned in the mower deck to close the throat portions, thereby defining a substantially cylindrical mulching chamber around each of the cutting blades.

摘要翻译： 一种多头割草机，其包括具有可旋转地设置在其中的多个切割刀片的割草机板。 第一流量控制挡板位于切割刀片和割草机甲板的前壁之间的割草机甲板中，并且在割草机甲板的侧面之间基本连续地延伸。 第二个流量控制挡板位于割草机甲板的切割刀片后面。 第一和第二流量控制挡板包括在其间限定多个开口喉部的多个半圆形挡板部分。 多个选择性可移除的割草器挡板位于割草机甲板中以封闭喉部，从而在每个切割刀片周围限定一个基本圆柱形的覆盖室。

公开(公告)号：US5979152A

公开(公告)日：1999-11-09

申请号：US841703

申请日：1997-04-30

申请人： Paul John McCredie

发明人： Paul John McCredie

IPC分类号： A01D34/16 ,  A01D34/18

CPC分类号： A01D34/16 ,  Y10S56/20

摘要： The non-driving end of the cutterbar is provided with a specialized integral end guard section having a single guard and a body portion defining a slot for enclosing the reciprocating end knife section. The body portion is also provided with a rearwardly extending mounting portion.

摘要翻译： 切割器的非驱动端设置有具有单个防护件的专用整体式端部防护部分和限定用于封闭往复式端部刀片部分的狭槽的主体部分。 主体部分还设置有向后延伸的安装部分。

公开(公告)号：US5960619A

公开(公告)日：1999-10-05

申请号：US867969

申请日：1997-06-03

申请人： David Seidel ,  Dominic Tamas

发明人： David Seidel ,  Dominic Tamas

IPC分类号： A01D34/00 ,  A01D34/52

CPC分类号： A01D34/005 ,  A01D2101/00 ,  Y10S56/17 ,  Y10S56/20

摘要： A cutting disc (12) for a lawn mower, the disc (12) having a plurality of cutting blades (13) and being formed with apertures (23). Associated with the apertures (23) are fan blades (22) which force air downwardly through the disc (12) to aid in mulching cut grass.

摘要翻译： 一种用于割草机的切割盘（12），所述盘（12）具有多个切割刀片（13）并且形成有孔（23）。 与孔（23）相关联的是风扇叶片（22），其将空气向下推动通过盘（12）以帮助覆盖草地。