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公开(公告)号：US5813123A
公开(公告)日：1998-09-29
申请号：US644522
申请日：1996-05-10
CPC分类号： B27B17/083
摘要： A motor chainsaw has a housing enclosing a motor with actuator and a saw chain. A braking device for the saw chain is positioned in the housing. The braking device has a brake drum and a brake band guided around the brake drum. The braking device has a brake lever connected to the housing so as to be pivotable about a first axis of rotation for moving the brake band from a release position into a braking position. A return kick brake for actuating the braking device is provided. The return kick brake has a ready position and an actuated position in which the brake band is in the braking position. The return kick brake has a hand protection grip, a control lever, and a return kick brake spring for loading the control lever. The control lever, when the return kick brake is moved from the ready position into the actuated position, pivots the brake lever into the braking position. A coasting brake for actuating the braking device has a transmission member, connected to the actuator and the brake lever, and a coasting brake spring for loading the brake band in the braking position. The brake lever has a second axis of rotation extending parallel to the first axis of rotation. The brake lever pivots about the second axis of rotation when the coasting brake is actuated.
摘要翻译： 电动机链锯具有包围具有致动器和锯链的马达的壳体。 用于锯链的制动装置定位在壳体中。 制动装置具有制动鼓和围绕制动鼓引导的制动带。 制动装置具有连接到壳体的制动杆，以便围绕第一旋转轴线枢转，以将制动带从释放位置移动到制动位置。 提供用于致动制动装置的回转制动器。 回转制动器具有就绪位置和致动位置，其中制动带处于制动位置。 回转煞车器具有手保护把手，控制杆和用于装载控制杆的回转煞车弹簧。 控制杆当回转蹬制动器从就绪位置移动到致动位置时，使制动杆枢转到制动位置。 用于致动制动装置的惯性制动器具有连接到致动器和制动杆的传动构件和用于将制动带装载到制动位置的惯性制动弹簧。 制动杆具有平行于第一旋转轴线延伸的第二旋转轴线。 当惯性制动器被致动时，制动杆绕第二旋转轴线枢转。
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公开(公告)号：US5480009A
公开(公告)日：1996-01-02
申请号：US303375
申请日：1994-09-09
CPC分类号： H02P3/04 , B27B17/083 , F16P3/00 , H02K7/102
摘要： The device for braking an electric drive motor of a hand-held working tool has a safety brake for an immediate stopping of the working tool and an independent mechanical brake for coasting the working tool to a stop after switching off the drive motor. The mechanical brake acts on a rotational part connected to the drive motor and is activated when a switch element for activating the drive motor is released.
摘要翻译： 用于制动手持工作工具的电动马达的装置具有用于立即停止作业工具的安全制动器和用于在关闭驱动马达之后将作业工具滑动到停止点的独立机械制动器。 机械制动器作用在与驱动电动机连接的旋转部分上，并且当用于启动驱动电机的开关元件被释放时被激活。
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公开(公告)号：US3958680A
公开(公告)日：1976-05-25
申请号：US535976
申请日：1974-12-23
IPC分类号： B27B17/08 , B27B17/10 , F16D43/18 , F16D67/00 , F16D47/02 , B23D59/00 , B60K41/24 , F16D43/24
CPC分类号： B27B17/10 , B27B17/083 , F16D43/18 , F16D67/00
摘要： A motor chain saw with a driving sprocket wheel adapted to be driven by a motor through the intervention of a centrifugal clutch, or the like. A safety clutch is arranged in the driving connection between the motor shaft and the driving sprocket and disengageable by a release mechanism. The safety clutch includes at least one disengageable follower member for interconnecting the two pertaining clutch members while being coaxially arranged with the centrifugal clutch and being located adjacent thereto. The safety clutch is arranged on that side of said centrifugal clutch which faces toward the driving sprocket while being located in the driving connection between the centrifugal clutch and the driving sprocket.
摘要翻译： 具有驱动链轮的电动链锯，其适于通过离心式离合器等的介入由电动机驱动。 安全离合器设置在电动机轴和驱动链轮之间的驱动连接中，并通过释放机构脱离。 安全离合器包括至少一个可分离的从动构件，用于将两个相关的离合器构件互连在一起，并与离心式离合器同轴地布置并与其相邻。 安全离合器布置在离心式离合器的面对驱动链轮的一侧，同时位于离心式离合器与驱动链轮之间的驱动连接中。
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公开(公告)号：US5272813A
公开(公告)日：1993-12-28
申请号：US961337
申请日：1992-10-15
申请人： Gunter Wolf , Herbert Armbruster , Reinhold Fink
发明人： Gunter Wolf , Herbert Armbruster , Reinhold Fink
CPC分类号： B27B17/0008
摘要： The invention is directed to a portable handheld work apparatus such as a motor-driven chain saw. The work apparatus includes a housing having a forward end wall, a rearward end wall defining a plane and a top wall extending between the end walls. A handle is mounted on the top wall for holding and guiding the work apparatus. A work tool is arranged on the forward end wall and a drive motor is mounted in the housing for driving the work tool. A holding lug is provided on the rearward end wall and is pivotable between a rest position wherein the holding lug is recessed in a recess formed in the rearward end wall and an in-use position wherein the holding lug is outside of the recess. The holding lug defines an eyelet through which an operator can pass a rope for holding the work apparatus by attaching the same to a belt or the like thereby freeing the hands of the operator. The holding lug does not constitute a disturbance for the operator when supporting the work apparatus on the body with said rearward end wall.
摘要翻译： 本发明涉及一种便携式手持式工作装置，例如电动链锯。 工作装置包括具有前端壁，限定平面的后端壁和在端壁之间延伸的顶壁的壳体。 手柄安装在顶壁上，用于保持和引导作业装置。 工作工具布置在前端壁上，驱动马达安装在壳体中用于驱动作业工具。 保持凸耳设置在后端壁上，并且在静止位置之间枢转，其中保持凸耳凹入形成在后端壁中的凹部中，并且其中保持凸耳位于凹部外部的使用位置。 保持凸耳限定了一个孔眼，操作者可以通过其将通过将工具装置附接到皮带等上的绳索通过绳索，从而释放操作者的手。 当通过所述后端壁将工作装置支撑在主体上时，保持凸耳不会对操作者造成干扰。
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