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1. 发明授权

US4138831A Vane adjusting mechanism for a powered snow thrower 失效
标题翻译：用于动力雪橇的叶片调节机构
公开(公告)号：US4138831A
公开(公告)日：1979-02-13
申请号：US881004
申请日：1978-02-24
申请人： Alan L. Chase
发明人： Alan L. Chase
IPC分类号： E01H5/04 , E01H5/00
CPC分类号： E01H5/045
摘要： A compact, lightweight snow thrower having a power driven impeller rotating about a horizontal, transverse axis to throw snow upwardly and forwardly through a chute which is substantially coextensive in width with the axial length of the impeller. A plurality of laterally spaced upright vanes are disposed in and pivotally connected to the upper end of the chute for the purpose of directing the discharge of snow. A vane adjusting mechanism includes a transverse, laterally shiftable vane adjusting bar which is connected to the vanes through pairs of laterally spaced fingers extending forwardly from the control bar on opposite lateral sides of the vanes. Lateral shifting movement of the bar effects simultaneous lateral tilting of the vanes. The vane adjusting bar includes a pair of rearwardly extending stud parts which extend through slots in the rear wall part of the transverse recess in the rear wall of the discharge chute in which the bar is disposed. The slots and stud parts cooperate to guide the control bar when it is shifted between an intermediate position in which the vanes direct the discharged snow straight ahead and laterally adjusted positions in which the vanes direct the snow discharged through the chute to one lateral side or the other. The recess for the control bar is sufficiently deep so that the control bar is disposed therein and does not interfere with discharge of snow through the chute and a resilient detent is provided to selectively, releasably hold the control bar in its intermediate and laterally adjusted positions.
摘要翻译：具有动力驱动叶轮的紧凑型轻量级雪橇机，其具有围绕水平横向轴线旋转的方式，以向上和向前推动雪，其宽度与叶轮的轴向长度基本上同延伸。为了引导雪的排放，多个横向间隔开的直立叶片设置在滑槽的上端并且可枢转地连接到滑槽的上端。叶片调节机构包括横向可横向移动的叶片调节杆，该叶片调节杆通过在叶片的相对侧面上从控制杆向前延伸的成对横向间隔开的指状物连接到叶片。杆的侧向移动运动同时影响叶片的横向倾斜。叶片调节杆包括一对向后延伸的螺柱部分，其延伸穿过放置滑槽的后壁中的横向凹部的后壁部分中的狭槽，其中设置有杆。狭槽和螺柱部分协作以引导控制杆，当其在叶片将排出的雪直接前进的中间位置和其中叶片将通过滑槽排出的雪直接导向一个侧面的侧向调节位置之间移动时，或其他。用于控制杆的凹部足够深，使得控制杆设置在其中并且不干扰通过滑槽的雪的排放，并且提供弹性制动器以选择性地可释放地将控制杆保持在其中间和横向调节位置。

2. 发明授权

US4813215A Mower belt transmission with blade brake 失效
标题翻译：割草机传动带叶片制动器
公开(公告)号：US4813215A
公开(公告)日：1989-03-21
申请号：US47718
申请日：1987-05-07
申请人： Alan L. Chase , Michael T. Prevost
发明人： Alan L. Chase , Michael T. Prevost
IPC分类号： A01D34/68 , A01D69/10 , A01D34/66
CPC分类号： A01D34/76 , A01D2101/00 , Y10S56/22
摘要： A transmission for a multi-blade mower has a belt trained around a driving pulley and successively around driven pulleys for the blades. For driving, an idler pulley of a tensioner engages a portion of the belt that is "downstream" from the last driven pulley and "upstream" from the first one. When the tensioner idler is disengaged from the belt for slippage of the driving pulley relative to it, blade braking is effected by opposing stationary and movable brake members mounted at opposite sides of the belt at a normally straight stretch of it that is "downstream" from the tensioner and driving pulley and "upstream" from the first driven pulley, the movable brake member then cooperating with the stationary one to clampwise engage the belt and confine it in a groove in one of those members. Manual shifting of an actuator towards an "on" position tensions a spring that engages the tensioner with the belt, and such tension, through a toggle connection, tends to maintain the actuator in that position. The movable brake member is biased towards the stationary brake member but has a lost motion connection with the actuator whereby shifting of the latter to its "on" position moves the movable brake member away from the stationary one to release the belt.
摘要翻译：用于多叶片割草机的变速器具有围绕驱动滑轮训练的带，并且连续地围绕用于叶片的从动滑轮。为了驱动，张紧器的惰轮与从最后一个从动滑轮“下游”的皮带的一部分接合，并从第一个“上游”接合。当张紧器惰轮与皮带相脱离时，驱动皮带轮相对于皮带轮相对滑动，叶片的制动通过相对的固定和可动的制动部件来实现，该固定和可动的制动部件安装在带的相对侧，张紧器和驱动滑轮以及从第一从动滑轮“上游”，然后可动制动构件与静止的制动构件配合以夹紧接合皮带并将其限制在这些构件之一中的凹槽中。将致动器手动移动到“开”位置使与张紧器接合的弹簧张紧，并且通过肘节连接件的这种张力趋向于将致动器保持在该位置。可动制动构件被朝向静止制动构件偏置，但是与致动器具有空动连接，由此将其移动到其“接通”位置，使可动制动构件远离静止制动构件释放皮带。

3. 发明授权

US4138829A Discharge vane arrangement for a powered snow thrower 失效
标题翻译：用于动力雪橇的排放叶片装置
公开(公告)号：US4138829A
公开(公告)日：1979-02-13
申请号：US880990
申请日：1978-02-24
申请人： Alan L. Chase
发明人： Alan L. Chase
IPC分类号： E01H5/04 , E01H5/00
CPC分类号： E01H5/045
摘要： A compact, lightweight snow thrower having a power driven impeller rotating about a horizontal, transverse axis to throw snow upwardly and forwrdly through a chute which is substantially coextensive in width with the axial length of the impeller. A plurality of laterally spaced upright vanes are disposed in and pivotally connected to the upper end of the chute for the purpose of directing the discharge of snow. The vanes are pivotally connected to a control bar whereby movement of the control bar effects simultaneous lateral tilting of the vanes. The vanes include a centrally positioned set which are parallel to one another and a pair of vanes at each of the laterally opposite sidewalls of the chute which are disposed at upwardly converging angles to one another so as to compress the column of discharged snow. One of the sidewalls of the discharge chute is also inclined laterally inwardly in an upward direction. The two laterally opposite, outermost vanes cause a converging effect on the snow being discharged to avoid wide dispersion of the discharged snow.
摘要翻译：一种紧凑，轻便的降雪机，具有动力驱动的叶轮绕水平的横向轴线旋转，以向上和向上推动雪，其宽度与叶轮的轴向长度基本上相同地延伸。为了引导雪的排放，多个横向间隔开的直立叶片设置在滑槽的上端并且可枢转地连接到滑槽的上端。叶片枢转地连接到控制杆，由此控制杆的移动同时影响叶片的横向倾斜。叶片包括彼此平行的中心定位的组和在滑槽的每个横向相对的侧壁处的一对叶片，它们以向上会聚的角度彼此设置，以便压缩排出的雪的列。卸料槽的侧壁之一也沿向上的方向横向向内倾斜。两个横向相对的最外面的叶片对被排放的雪产生会聚作用，以避免排出的雪的大量分散。

4. 发明授权

US4138830A Snow thrower with combined discharge vane support and strike-off wall 失效
标题翻译：具有组合放电叶片支撑和拆除墙的雪铲
公开(公告)号：US4138830A
公开(公告)日：1979-02-13
申请号：US881003
申请日：1978-02-24
申请人： Alan L. Chase
发明人： Alan L. Chase
IPC分类号： E01H5/04 , E01H5/00
CPC分类号： E01H5/045
摘要： A compact, lightweight snow thrower having a power driven impeller rotating about a horizontal, transverse axis to throw snow upwardly and forwardly through a chute which is substantially coextensive in width with the axial length of the impeller. A plurality of laterally spaced upright vanes are disposed in and pivotally connected to the upper end of the chute for the purpose of directing the discharge of snow. The chute includes a front wall portion which serves as a support for the discharge directing vanes and as a strike-off wall preventing jamming of the discharge chute when the snow thrower encounters deep snow. Snow thrown by the impeller against the front wall portion tends to fall down because of its vertical disposition.
摘要翻译：具有动力驱动叶轮的紧凑型轻量级雪橇机，其具有围绕水平横向轴线旋转的方式，以向上和向前推动雪，其宽度与叶轮的轴向长度基本上同延伸。为了引导雪的排放，多个横向间隔开的直立叶片设置在滑槽的上端并且可枢转地连接到滑槽的上端。滑槽包括前壁部分，其用作排出导向叶片的支撑件，并且作为防脱壁，防止在投掷器遇到深雪时堵塞排出槽。由于叶轮由于其垂直布置而被叶轮抛向前壁部分倾倒下来。

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