公开(公告)号：US06375171B1

公开(公告)日：2002-04-23

申请号：US09658132

申请日：2000-09-08

申请人： Helmut Zimmermann ,  Horst Otterbach ,  Bernhard Dürr ,  Manfred Rabis ,  Karl-Heinz Klöpfer ,  Klaus Martin Uhl ,  Günter Wolf ,  Rebekka Helfen

发明人： Helmut Zimmermann ,  Horst Otterbach ,  Bernhard Dürr ,  Manfred Rabis ,  Karl-Heinz Klöpfer ,  Klaus Martin Uhl ,  Günter Wolf ,  Rebekka Helfen

IPC分类号： F16M100

CPC分类号： B25F5/006 ,  B27B17/0033 ,  F16F1/12 ,  F16F1/122 ,  F16F15/067

摘要： The invention relates to a vibration damper between a housing (4), which holds an internal combustion engine, and a handle (3) fixed on the housing (4). The handle (3) is for holding and guiding the motor-driven chain saw (2) during use thereof. The vibration damper (1) is a coil spring (5) which is fixed at a first end (10) thereof with an attachment element (7) to the handle (3) and, at a second end (20), the coil spring is fixed with a further attachment element (30) to the housing. A part turn of the end (10, 20) of the coil spring (5) is held form-tightly to the attachment element (7, 30) in the direction of its longitudinal center axis (25). To provide a torsion-free assembly of the coil spring, it is provided that the coil spring (5) can be assembled from one of its ends (20) between the handle (3) and the housing (4) and be secured at least at one of its ends (20) to the attachment element (30) against a rotational movement in the peripheral direction.

摘要翻译： 本发明涉及一种在保持内燃机的壳体（4）和固定在壳体（4）上的手柄（3）之间的减振器。 手柄（3）用于在使用时保持和引导电动链锯（2）。 减震器（1）是螺旋弹簧（5），其在其第一端（10）处固定有与把手（3）相连的附接元件（7），并且在第二端（20）处，螺旋弹簧 被固定有另外的附接元件（30）到壳体。 螺旋弹簧（5）的端部（10,20）的一部分转动沿其纵向中心轴线（25）的方向紧密地保持在附接元件（7,30）上。 为了提供螺旋弹簧的无扭转组件，设置螺旋弹簧（5）可以从手柄（3）和壳体（4）之间的端部（20）之一组装并且至少被固定 在其一个端部（20）处连接到附接元件（30），以防止在周向方向上的旋转运动。

公开(公告)号：US06192840B1

公开(公告)日：2001-02-27

申请号：US09362227

申请日：1999-07-28

申请人： Bernhard Dürr ,  Karl-Heinz Klöpfer

发明人： Bernhard Dürr ,  Karl-Heinz Klöpfer

IPC分类号： F01P702

CPC分类号： B27B17/00 ,  F02B63/02 ,  F02B75/16

摘要： The invention relates to a drive unit of a portable handheld work apparatus such a motor-driven chain saw having an internal combustion engine. The crankshaft of the engine drives a tool of the work apparatus and a fan wheel. The fan wheel is held within a fan housing on a drive pin of the crankshaft. A crankcase is rigidly connected to a cylinder of the engine and is made of a metal material. The crankcase is configured of two parts and the axis of the crankshaft lies in the partition plane of the crankcase housing parts which can be connected to each other. A metallic chassis of the drive unit includes a crankcase sump as one of the crankcase halves and has a flange surface lying essentially perpendicularly to the crankshaft axis. The flange surface is at least defined in sections by the free-lying end of the crankcase sump. In this way, the weight and the manufacturing costs of the work apparatus are reduced. The fan housing is made of plastic and is attached to and lies against the flange surface with its housing base.

摘要翻译： 本发明涉及一种便携式手持式工作装置的驱动装置，例如具有内燃机的电动链锯。 发动机的曲轴驱动工作装置的工具和风扇轮。 风扇轮保持在曲轴的驱动销上的风扇壳内。 曲轴箱刚性地连接到发动机的气缸并由金属材料制成。 曲轴箱由两部分构成，曲轴的轴线位于曲轴箱壳体部分的分隔平面中，可以相互连接。 驱动单元的金属底盘包括作为曲轴箱半部之一的曲轴箱底槽，并且具有基本上垂直于曲轴轴线的凸缘表面。 凸缘表面至少由曲轴箱底座的自由端限定。 以这种方式，减轻了作业装置的重量和制造成本。 风扇外壳由塑料制成，并与其外壳底座相连，并与凸缘表面贴合。