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公开(公告)号：US4514967A
公开(公告)日：1985-05-07
申请号：US520020
申请日：1983-08-03
IPC分类号： A01D34/64 , F02B75/02 , A01D35/12 , A01D35/262
CPC分类号： A01D34/64 , A01D2101/00 , F02B2075/027
摘要： An articulated riding mower comprised of a sulky unit pivotally connected to a walk-behind mower. To attach the sulky to the walk-behind mower, the mower deck includes a bridge support overlying the mower deck between the rear corner positions thereof. The bridge support has depending extensions at the corner positions mounted on the axle of the rear wheels. The depending extensions of the bridge support are, in turn, rigidly fastened to the respective corners of the mower deck. A central portion of the bridge support carries a pivotal connection including a bearing for removably attaching the sulky to the walk-behind mower. In a preferred embodiment, the handle of the walk-behind mower is connected, at its lower end, directly to the bridge support.
摘要翻译： 一种铰接式骑马割草机，包括一个摇摆的单元，可旋转地连接到步行式割草机上。 割草机甲板将沐浴露放在步行式割草机上，包括覆盖割草机甲板之间的后角位置的桥架。 桥梁支撑件在安装在后轮轴上的拐角位置具有固定延伸。 桥架支撑件的固定延伸部又依次紧固到割草机甲板的各个角部。 桥梁支撑件的中心部分承载枢转连接，其包括用于可移除地将肮脏地附接到步行式割草机的轴承。 在优选实施例中，步行式割草机的把手在其下端直接连接到桥架上。
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公开(公告)号：US4280319A
公开(公告)日：1981-07-28
申请号：US57804
申请日：1979-07-16
申请人： Joseph E. Scanland
发明人： Joseph E. Scanland
CPC分类号： A01D34/81 , A01D2101/00
摘要： A deck construction for a rotary mower which includes a shallow cylindrical blade housing with horizontal aprons extending fore and aft therefrom. Integral wheel supporting plates extend vertically along the respective lateral edges of the aprons and at right angles thereto. Each wheel supporting plate has a cantilevered tip portion which extends to the sidewall of the blade housing and which is welded to the sidewall at a region which is spaced substantially upwardly from the lower edge of the housing. The tip portion of each blade supporting plate is of flaring shape defining a generally triangular relief space thereunder and so that the plate forms a downwardly angled brace between housing and apron. The wheel supporting plates and apron are mutually reinforced by a narrow flange extending continuously around the edges thereof between the welded tip portions.
摘要翻译： 一种用于旋转割草机的甲板结构，其包括具有从其前后延伸的水平围裙的浅圆柱形刀片壳体。 一体轮支撑板沿着围裙的相应侧边缘并且与其成直角延伸。 每个车轮支撑板具有悬臂末端部分，其延伸到刀片壳体的侧壁并且在与壳体的下边缘基本上向上间隔开的区域处焊接到侧壁。 每个叶片支撑板的尖端部分具有限定其下方大致三角形的释放空间的扩张形状，并且使得该板在壳体和围裙之间形成向下成角度的支撑。 车轮支撑板和围裙通过在焊接的末端部分之间围绕其边缘连续延伸的窄凸缘相互增强。
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公开(公告)号：US4165597A
公开(公告)日：1979-08-28
申请号：US756329
申请日：1977-01-03
IPC分类号： A01D34/416 , A01D55/18
CPC分类号： A01D34/4168
摘要： As an article of manufacture, a tapered cutter pin for a rotary mower formed of durable resilient plastic having a shank and terminating at its outer end in a relatively thin but stiffly resilient tip portion, the shank having a head at its inner end for retaining the pin in the disc. With the pin supported cantilever fashion adjacent the head, the bending modulus in the shank is a minimum of 50 in..sup.2 -lb and at the tip is a maximum of 30 in..sup.2 -lb and the initial deflection ranges between 0.5 and 3.0 inches of tip deflection per pound of force. In the preferred embodiment the pin has four evenly spaced flutes extending longitudinally over a portion of its length and of a depth approximately proportioned to the thickness of the pin, the flutes defining between them ribs to produce a cruciform cross section.
摘要翻译： 作为制造品，用于旋转割草机的锥形切割销由耐用的弹性塑料形成，其具有柄部并且在其外端处终止于相对薄但刚性地弹性的尖端部分，所述柄部在其内端具有头部，用于保持 插入光盘。 由于与支柱相邻的销支撑悬臂方式，柄部的弯曲模量最小为50英寸2磅，顶端最大为30英寸2磅，初始偏转范围为0.5至3.0英寸 每磅力的尖端偏转。 在优选实施例中，销具有在其长度的一部分上纵向延伸的四个均匀间隔的槽纹，并且其深度与销的厚度成大致成正比，所述槽纹在它们之间限定肋条以产生十字形横截面。
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公开(公告)号：USD250648S
公开(公告)日：1978-12-26
申请号：US736707
申请日：1976-10-29
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公开(公告)号：US4126990A
公开(公告)日：1978-11-28
申请号：US714982
申请日：1976-08-18
IPC分类号： A01D34/416 , A01D55/18
CPC分类号： A01D34/4168 , A01D34/4166
摘要： A cutter disc assembly for a rotary lawn mower in which the disc has a circular central portion and a peripheral portion with a shallow vertical wall in between. Radial openings are provided in the wall in register with radial grooves formed in the underside of the peripheral portion. A plastic pin is in register with each opening, with the shank of the pin occupying the associated groove and with a stiffly resilient tip portion projecting beyond the periphery of the disc into cutting engagement with the grass. Each groove has a curved rear wall against which the pin bends as the projecting tip of the pin strikes an obstruction as well as a curved front wall against which the pin bends upon rebound, the curved walls being of outwardly flaring shape thereby to support the shank of the pin substantially free of concentrated stress. Each groove has, in addition, a bridge or "ceiling" which serves as a guide surface to hold the pin in a downwardly-angled working position and to provide frictional damping. Protection of tip portion of the pin in its bent state is offered by a ledge or radial extension on the disc either above or below the pin and which "wipes by" the obstruction, shielding the pin from abrading action. Upwardly swept radial vanes are provided above the periphery of the disc to generate air currents which agitate the grass as it is being cut and to provide a stream of air to move the clippings through the discharge chute.
摘要翻译： 一种用于旋转割草机的切割盘组件，其中盘具有圆形中心部分和在其间具有浅垂直壁的周边部分。 径向开口设置在壁上，与形成在周边部分的下侧中的径向凹槽对准。 塑料销与每个开口对准，销的柄占据相关联的槽，并且具有突出超过盘的周边的刚性弹性的尖端部分与草切割接合。 每个凹槽具有弯曲的后壁，当销的突出尖端撞击障碍物时，销弯曲，并且弯曲的前壁在弯曲的情况下弯曲，弯曲的壁呈向外扩张的形状，从而支撑柄 的销基本上没有集中的应力。 此外，每个凹槽还具有用作引导表面的桥或“天花板”，以将销保持在向下的工作位置并提供摩擦阻尼。 在其弯曲状态下保护销的尖端部分由在销上方或下方的盘上的凸缘或径向延伸部提供，并且通过“擦拭”障碍物，从而遮蔽销的磨损作用。 向上扫掠的径向叶片设置在盘的周边上方，以产生气流，其在被切割时搅动草，并提供空气流以将夹子移动通过排出槽。
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公开(公告)号：US4422283A
公开(公告)日：1983-12-27
申请号：US334462
申请日：1981-12-28
申请人： Joseph E. Scanland
发明人： Joseph E. Scanland
CPC分类号： A01D34/81 , A01D2101/00
摘要： A rotary lawnmower of the type having an inverted pan-shaped housing generally surrounding a horizontal rotary blade affixed to a vertical shaft extending downwardly from a rotary power source mounted on the top of the housing. A pair of tubular longitudinal frame members extend bridgingly in horizontal position over and secured to the housing on opposite sides of the rotary power source with downward extensions secured to front and rear wheels. The downward extensions are also affixed to front and rear aprons extending horizontally from the lower edge of the side wall of the housing to provide mutual bracing. The lawnmower has a handle that is attached to the rear downward extensions of the longitudinal frame members so that forces developed in the handle incident to guiding the mower are transferred directly to the frame members and then directly to the wheels so that the housing is not stressed upon manipulation of the handle. The forces generated in the wheels when striking a bump or hollow are similarly by-passed around the housing. The rigidity gained by the attachment of a longitudinal frame members to the top of the housing and to the forward and rear aprons combined with the direct transfer of force from the handle to the wheel permits the housing to be stamped from lighter weight sheet metal.
摘要翻译： 一种具有倒置的盘形壳体的旋转割草机，其通常围绕安装在从安装在壳体的顶部上的旋转动力源向下延伸的垂直轴的水平旋转叶片。 一对管状纵向框架构件在水平位置上桥接地延伸并且在旋转动力源的相对侧上固定到壳体，并且具有固定到前轮和后轮的向下延伸部。 向下延伸部也固定在从壳体侧壁的下边缘水平延伸的前围裙和后围裙上，以提供相互支撑。 割草机具有附接到纵向框架构件的后部向后延伸部的手柄，使得在手柄中产生的引导引导割草机的力直接传递到框架构件，然后直接传递到车轮，使得壳体不受应力 在操纵手柄时。 撞击凸起或中空时在车轮中产生的力同样绕过外壳。 通过将纵向框架构件附接到壳体的顶部以及前后围裙结合从手柄到轮子的力的直接传递而获得的刚度允许从较轻重量的金属板冲压外壳。
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公开(公告)号：US4172351A
公开(公告)日：1979-10-30
申请号：US918960
申请日：1978-06-26
申请人： Joseph E. Scanland
发明人： Joseph E. Scanland
CPC分类号： A01D34/81 , A01D2101/00
摘要： A rotary lawn mower of the type having a circular housing with adjustably mounted ground engaging wheels. A side shield is provided in the form of a vertical plate of metal arranged fore-and-aft between the wheels and closely alongside the housing. The shield is supported at its ends on the front and rear axles, extending close to the ground to prevent ejection of a missile at ground level and of sufficient height to prevent discharge at a higher level in all positions of housing adjustment. Preferably the housing has a laterally extending horizontal apron along its lower edge while the side shield has a pair of inwardly extending tabs along its upper edge in overlapping relation to the ends of the apron to prevent ejection of a missile upwardly in the space adjacent the wheel treads. As an alternate construction, the shield has an inwardly extending ledge which conforms to the wall of the mower housing.
摘要翻译： 该类型的旋转割草机具有带可调节地安装的接地轮的圆形壳体。 侧板设置成在车轮之间前后并排配置的金属垂直板的形式。 盾构件的前端和后桥端部支撑，靠近地面，防止地面弹出导弹，并具有足够的高度，以防止在外壳调整的所有位置上升到较高的高度。 优选地，壳体沿着其下边缘具有横向延伸的水平围裙，而侧屏蔽件具有沿着其上边缘的一对向内延伸的突片，其与围裙的端部重叠，以防止在靠近轮子的空间中向上弹出导弹 踩踏 作为替代结构，屏蔽件具有与割草机壳体的壁相符的向内延伸的凸缘。
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公开(公告)号：US4126991A
公开(公告)日：1978-11-28
申请号：US820291
申请日：1977-08-01
IPC分类号： A01D34/416 , A01D55/18
CPC分类号： A01D34/4168
摘要： A cutter pin for mounting on a mower disc having a keyed radial socket with a curved backstop adjacent thereto, the pin being tapered from shank to tip portion in the vertical plane but with the top portion having substantially the same maximum width as the shank in the horizontal plane to provide a flattened blade-like structure with generally parallel lateral edges. The pin is formed integrally of durable plastic having substantially the characteristics of nylon so that it stands out from the periphery in radially self-supporting position with sufficient stiffness for the cutting of grass as the disc rotates. The tip portion has a sufficiently high width-to-thickness ratio and is smoothly merged with the shank so that when the pin strikes a weighty or fixed obstruction with a force having a random vertical component it bends backwardly engaging the backstop with distributed curvature accompanied by resilient twisting of the tip portion about the pin axis so that the engaged cutting edge turns away from the obstruction and so that a relatively flat side of the tip portion is presented for idly wiping-by the obstruction. In the preferred form of the invention the pin is tapered substantially uniformly in the vertical plane from head to tip, with the tip portion being of lenticular cross section. Also in the preferred embodiment the shank is formed with longitudinal ribs of tapering height defining flutes of tapering depth between them.
摘要翻译： 一种用于安装在割草机盘上的切割销，其具有带有与其相邻的弯曲止挡的带键的径向插座，该销在竖直平面中从柄部到尖端部分逐渐变细，但是顶部部分具有与柄部中的柄部基本相同的最大宽度 水平面以提供具有大致平行的侧边缘的扁平的叶片状结构。 该销由耐用的塑料整体形成，其基本上具有尼龙的特性，使得其在径向自支撑位置处从周边突出，具有足够的刚度用于当盘旋转时切割草。 尖端部分具有足够高的宽度与厚度的比率，并且与柄部平滑地合并，使得当销以具有随机垂直分量的力撞击重物或固定的障碍物时，它向后弯曲地与分支曲率相配合，分布曲率伴随着 尖端部分围绕销轴线的弹性扭转，使得接合的切割边缘远离障碍物，并且使得尖端部分的相对平坦的侧面被呈现以便被阻塞物空闲地擦拭。 在本发明的优选形式中，销在从头部到尖端的垂直平面中基本上均匀地锥形，其中尖端部分是透镜状横截面。 同样在优选实施例中，柄形成有锥形高度的纵向肋，限定了它们之间的锥形深度的凹槽。
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公开(公告)号：USD249150S
公开(公告)日：1978-08-29
申请号：US736846
申请日：1976-10-29
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公开(公告)号：USD245757S
公开(公告)日：1977-09-13
申请号：US710263
申请日：1976-07-30
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