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公开(公告)号：US4282653A
公开(公告)日：1981-08-11
申请号：US3242
申请日：1979-01-15
IPC分类号： A01D34/416 , A01D50/00
CPC分类号： A01D34/4168
摘要： A discrete cutting element (18) including a plurality of cutting filaments (26) for use in a vegetation line trimmer (10). In a preferred embodiment provided filaments (26) emanate from a common locus (27) at a filament holder (16) for rotation about the holder's axis of rotation. Certain embodiments can include axially fixed apparatus for conducting the associated filaments (26) away from a spool-like member (23) around which the filaments (26) are wound, and aiding divergence of the filaments.
摘要翻译： 一种离散的切割元件（18），包括用于植被线修剪器（10）中的多个切割细丝（26）。 在优选实施例中，提供的细丝（26）从灯丝保持器（16）处的公共轨迹（27）发出，用于围绕保持器的旋转轴线旋转。 某些实施例可以包括轴向固定的装置，用于将相关联的细丝（26）远离缠绕细丝（26）的线轴状构件（23）和辅助发丝。
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公开(公告)号：US4250695A
公开(公告)日：1981-02-17
申请号：US943207
申请日：1978-09-18
CPC分类号： A01G1/125
摘要： An improved powered lawn care implement which can accomplish both reducing of debris and removal of lawn thatch. The implement includes a generally horizontally mounted elongated processing element which carries a plurality of generally radially extending resilient filaments. The implement can be made so that the height of the processing element above the ground surface which is to be worked by the implement can be varied. Free ends of the filaments can thereby be made to engage either debris at the lawn surface or dead vegetative matter located near the base of grass filaments growing in a lawn.
摘要翻译： 一种改进的动力草坪护理工具，可以实现减少碎屑和去除草坪。 该工具包括大致水平安装的细长处理元件，其承载多个大致径向延伸的弹性长丝。 可以使工具能够改变要由工具加工的地面上方的处理元件的高度。 因此，可以使长丝的自由端接合草坪表面的任何碎片或位于草坪上生长的草丝基部附近的死植物性物质。
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公开(公告)号：US5042238A
公开(公告)日：1991-08-27
申请号：US467283
申请日：1990-01-17
IPC分类号： B62D9/00
CPC分类号： B62D9/00
摘要： An improved riding lawn mower comprises a frame having steerable front wheels and rear traction wheels. Each rear wheel is independently driven by a separate transmission. A steering wheel is used to turn the front wheels to control the direction of movement of the rider. Linkage assemblies connected to the steering assembly declutch the rear wheel on the inside of a sharp turn to give the mower near ZTR turning ability. However, the declutched rear wheel freewheels to avoid tearing the turf and the mower does not speed up during the turn.
摘要翻译： 改进的骑马割草机包括具有可转向前轮和后牵引轮的框架。 每个后轮由独立的传动单独驱动。 方向盘用于转动前轮以控制骑手的运动方向。 连接到转向组件的连接组件将后轮向内倾斜，使割草机接近ZTR转弯能力。 然而，落后的后轮离合器，以避免撕裂草坪和割草机在转弯期间不会加速。
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公开(公告)号：US4909365A
公开(公告)日：1990-03-20
申请号：US205429
申请日：1988-06-16
IPC分类号： F16D41/12
CPC分类号： F16D41/12
摘要： A bidirectional freewheeling clutch assembly (50) and a self-propelled walk-behind lawn mower (10) including same are disclosed. Lawn mower (10) preferably includes a prime mover (18) which can be selectively coupled to a gear box (34). The output shaft (44) of gear box (34) extends to a pair of clutch assemblies (50) which selectively apply torque to a pair of gear driven wheels (16). Each clutch assembly (50) includes as its basic components a key (68) and a friction disk (66). Key (68) has a wedge portion (74) which rocks within an axial first keyway (62), and a tang portion (76) which is received within a tang relief (84) in friction disk (66). When shaft (44) is rotated friction disk (66) frictionally engages the housing (12) of mower (10) and applies a drag force to the tang portion (76) of key (74) to cause it to cock and positively engage a pinion (46) which engages a gear (48) attached to drive wheel (16). When gear box output shaft (44) is not rotated key (68) is not cocked and pinion (46) and drive wheel (16) can bidirectionally freewheel.
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公开(公告)号：US4908968A
公开(公告)日：1990-03-20
申请号：US181786
申请日：1988-04-15
摘要： A snowthrower (10) having an improved impeller (20). Impeller (20) preferably includes a central rotating shaft (34) which fixedly supports at either end thereof an end member (46) and rotatably supports proximate its center a center bracket (48) wherein elements (46) and (48) support one or more one-piece flexible curved paddles (36). In operation, when rotating impeller (20) encounters a foreign object (70), shaft (34) and end members (46) continue to turn while center bracket (48) rotates to some degree on shaft (34) to allow the center sections (38) of paddles (36) to twist and flex relative to shaft (34) and end members (46), thereby permitting center sections (38) of paddles (36) to easily ride up and over obstruction (70). This minimizes the shock associated with impact of the rotating impeller (20) with obstruction (70), and prevents stalling of the prime mover (18) of snowthrower (10).
摘要翻译： 具有改进的叶轮（20）的积雪车（10）。 叶轮（20）优选地包括中心旋转轴（34），其在其任一端处固定地支撑端部构件（46）并且可旋转地支撑其中心靠近中心托架（48），其中元件（46）和（48）支撑一个或 更多的单件柔性弯曲桨（36）。 在操作中，当旋转叶轮（20）遇到异物（70）时，轴（34）和端部构件（46）继续转动，同时中心托架（48）在轴（34）上某种程度上旋转，以允许中心部分 （38）的叶片（38）相对于轴（34）和端部构件（46）扭转和弯曲，从而允许桨叶（36）的中心部分（38）容易地越过障碍物（70）。 这使与旋转叶轮（20）与阻塞（70）的冲击相关的冲击最小化，并且防止推雪机（10）的原动机（18）的停止。
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公开(公告)号：US4584771A
公开(公告)日：1986-04-29
申请号：US714013
申请日：1976-08-13
申请人： Henry B. Tillotson
发明人： Henry B. Tillotson
CPC分类号： A01D34/4163
摘要： Cutting filament metering apparatus for a flexible filament vegetation cutting device in which a flexible filament cutting element is coiled on a filament holder rotatably driven about a substantially vertical axis with a free end of the driven filament defining a cutting plane. The cutting filament metering apparatus includes a driver element rotatably driven about a substantially vertical axis and an engagement member carried by the filament holder for driving engagement with the driver element. An escapement device is also secured to the filament holder and allows limited rotational movement of the holder with respect to the driver element to release a predetermined length of cutting filament. The filament holder is axially biased into a first position in which the driver element engages the engagement device. In one embodiment, the engagement and escapement devices are annular each having teeth circumferentially disposed and projecting radially inward toward the driver axis of rotation. The driver element is provided with driving teeth circumferentially disposed and projecting radially outward from the driver axis of rotation to alternately engage either the teeth on the engagement or escapement devices. Additionally, in certain embodiments, a housing is provided which partially encloses the cutting plane defined by the driven cutting filament and a cutting blade is attached to the housing at the outer periphery of the cutting plane. The cutting blade severs excessive flexible filament to maintain the filament length at a predetermined maximum.
摘要翻译： 用于柔性细丝植被切割装置的切割长丝计量装置，其中柔性细丝切割元件卷绕在灯丝架上，灯丝保持器围绕基本上垂直的轴线旋转地驱动，其中被驱动细丝的自由端限定切割平面。 切割长丝计量装置包括围绕基本上垂直的轴线旋转地驱动的驱动元件和由灯丝保持器承载的用于与驱动元件驱动接合的接合构件。 擒纵装置也固定到灯丝架上，并允许保持器相对于驱动元件的有限旋转运动以释放预定长度的切割细丝。 灯丝保持器被轴向偏置到第一位置，在第一位置，驱动元件与接合装置接合。 在一个实施例中，接合和擒纵装置是环形的，每个齿具有周向设置并且朝向驱动器旋转轴线径向向内突出的齿。 驱动元件设置有驱动齿，驱动齿沿周向设置并从驱动器旋转轴线径向向外突出，以交替地接合接合或擒纵装置上的齿。 另外，在某些实施例中，提供了壳体，其部分地包围由从动切割细丝限定的切割平面，并且切割刀片在切割平面的外周附接到壳体。 切割刀片切断过多的柔性细丝，以将长丝长度保持在预定的最大值。
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公开(公告)号：US4326145A
公开(公告)日：1982-04-20
申请号：US116269
申请日：1980-01-28
CPC分类号： F02N19/004 , F02P13/00
摘要： An improved spark plug and a compression relief adapter are described which are designed to permit a portion of the gases in the cylinder of an internal combustion engine to vent during the starting operation so as to make it easier to manually start the engine.
摘要翻译： 描述了改进的火花塞和压缩释放适配器，其被设计成允许内燃机的气缸中的一部分气体在起动操作期间排气，以便于更容易地手动启动发动机。
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公开(公告)号：US4204738A
公开(公告)日：1980-05-27
申请号：US892262
申请日：1978-03-31
申请人： Henry B. Tillotson
发明人： Henry B. Tillotson
IPC分类号： H01R13/639 , H01R13/54
CPC分类号： H01R13/6392
摘要： A device for securely retaining, in a mated configuration: an electrical connector, such as one used on an electrical power implement, and a compatible electrical connector, such as in use with electrical power extension cords. In a preferred embodiment disclosed, retention is accomplished by a wire clip which clasps a multiposition cannelured mating element carried by the extension cord. The wire clip is formed within a wire bail pivotally mounted to the connector of the electrical power implement.
摘要翻译： 一种用于以配合配置可靠地保持的装置：诸如用于电力工具的电连接器以及与电力延伸线一起使用的兼容的电连接器。 在所公开的优选实施例中，保持通过线夹实现，该线夹扣住由延长线承载的多位置插入的配合元件。 线夹形成在可枢转地安装到电动工具的连接器的电线吊环内。
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公开(公告)号：US3942505A
公开(公告)日：1976-03-09
申请号：US494895
申请日：1974-08-05
申请人： Henry B. Tillotson
发明人： Henry B. Tillotson
CPC分类号： A01D34/6818 , F02N11/10 , F02N3/02 , A01D2101/00 , Y10T477/656 , Y10T477/71 , Y10T74/13
摘要： A lawn mower starting interlock for gas powered mowers for preventing engagement between the starting pinion and flywheel thereof when the mower is in a predetermined condition, for example, when the mower wheel drive mechanism is engaged. A pivotable lever which may be pivoted into the path of advance of the starter pinion in a Bendix type starter as the starter pinion advances along a helical worm gear towards engagement of a flywheel is disclosed. The lever may be pivoted by means of a bowden wire arrangement, the opposite end of which is attached to the mower drive engagement mechanism or a linkage which moves therewith.
摘要翻译： 割草机在割草机处于预定状态时，例如当割草机驱动机构接合时，用于燃气动力割草机的起草互锁装置，用于防止起动小齿轮和其飞轮之间的接合。 公开了一种可枢轴转动的杠杆，当杠杆沿着螺旋蜗杆向着飞轮的接合方向前进时，该杠杆可以在Bendix型起动器中枢转进入起动小齿轮前进的路径。 杠杆可以通过弓形线布置枢转，弓形布置装置的相对端附接到割草机驱动接合机构或与其一起移动的连杆。
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公开(公告)号：US5205112A
公开(公告)日：1993-04-27
申请号：US854168
申请日：1992-03-20
IPC分类号： A01D34/63 , A01D34/685 , A01D34/71 , A01D42/00
CPC分类号： A01D34/685 , A01D34/71 , A01D42/005 , A01D2101/00 , A01D34/63 , Y10S56/17
摘要： A multi-bladed mulching mower is convertible between a mulching mode in which the grass clippings are deposited as mulch or a discharge/collection mode in which the grass clippings are discharged from the housing or are bagged. The mower includes two separate cutting chambers which are staggered forwardly relative to one another but otherwise are arranged side-by-side next to one another. The peripheral wall of the forward cutting chamber has a selectively openable gate which is closed in the mulching mode but is opened in the discharge/collection mode. The rearward cutting chamber is provided with a discharge outlet which can be selectively opened in the discharge/collection mode but is otherwise closed. When the gate and discharge outlet are opened and the mower is operating in the discharge/collection mode, the grass clippings in the forward cutting chamber are deposited onto the ground in advance of the rearward cutting chamber to be picked up and evacuated by the blade in the rearward cutting chamber as the rearward cutting chamber passes over the clippings during forward movement of the mower.
摘要翻译： 多叶覆盖割草机可以在覆盖草地作为覆盖物覆盖的覆盖模式或排出/收集模式之间转换，其中草屑从壳体排出或被包装。 割草机包括两个分离的切割室，它们相对于彼此向前交错，但是彼此并排布置。 前切割室的周壁具有选择性打开的门，其在覆盖模式下封闭，但在排放/收集模式下打开。 向后切割室设置有排出口，该排出口可以在排出/收集模式中选择性地打开，但是否则关闭。 当门和排出口打开并且割草机在排放/收集模式下操作时，前切割室中的草屑在后切割室之前被沉积到地面上，以被叶片拾取和抽空 作为后切割室的后切割室在割草机的向前运动期间经过剪切。
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