公开(公告)号：US06799642B2

公开(公告)日：2004-10-05

申请号：US10066741

申请日：2002-02-06

申请人： Gunter Wolf ,  Phillip Neumann ,  Helmut Lux ,  Lothar Ulrich

发明人： Gunter Wolf ,  Phillip Neumann ,  Helmut Lux ,  Lothar Ulrich

IPC分类号： F16M100

CPC分类号： B27B17/0033 ,  B25F5/006 ,  F16F1/128

摘要： A vibration damper is disposed between two components (2, 3) of a portable handheld work apparatus (4). The vibration damper is held especially between a housing (6), which holds an internal combustion engine (5), and a handle (7) which is fixed on the housing (6) for guiding the work apparatus (4). The vibration damper includes a coil spring (9) and respective attachment elements (11, 12) at the ends (10, 13) of the coil spring. A coupling member (17) is provided to ensure that the work apparatus can be guided notwithstanding a break of a coil spring. The coupling member (17) projects through the coil spring (9) and bridges the axial distance (16) between the attachment elements (11 and 12). The coupling member (17) is connected to each attachment element (11, 12) so that it cannot separate therefrom.

摘要翻译： 在便携式手持式工作装置（4）的两个部件（2,3）之间设置振动阻尼器。 振动阻尼器特别地保持在保持内燃机（5）的壳体（6）和固定在壳体（6）上的用于引导作业装置（4）的手柄（7）之间。 振动阻尼器包括在螺旋弹簧的端部（10,13）处的螺旋弹簧（9）和相应的附接元件（11,12）。 提供联接构件（17）以确保即使螺旋弹簧断裂，工作装置也可以被引导。 联接构件（17）突出通过螺旋弹簧（9）并且在附接元件（11和12）之间桥接轴向距离（16）。 联接构件（17）连接到每个附接元件（11,12），使得它不能与其分离。

公开(公告)号：US5231956A

公开(公告)日：1993-08-03

申请号：US16078

申请日：1993-02-10

申请人： Helmut Lux ,  Lothar Ulrich

发明人： Helmut Lux ,  Lothar Ulrich

IPC分类号： B27B17/00 ,  F01P1/02 ,  F01P5/06 ,  F02B63/00 ,  F02B63/02 ,  F02M35/022 ,  F02M35/06 ,  F02M35/10 ,  F02M35/16

CPC分类号： F02B63/02 ,  B27B17/00 ,  F01P5/06 ,  F02M35/1017 ,  F02M35/1019 ,  F02M35/10262 ,  F02M35/10268 ,  F01P1/02 ,  Y02T10/146

摘要： The invention is directed to a portable handheld work apparatus including a motor-driven chain saw, cutoff machine and the like. The work apparatus includes a housing and an internal combustion engine mounted in the housing for driving a work tool. The housing defines a space from which said engine draws combustion air and a fan wheel is disposed in the housing for generating a cooling-air flow which leaves the fan wheel in a direction tangential to the periphery of the fan wheel for cooling the engine. The housing has a U-shaped channel for conducting the cooling-air flow. The U-shaped channel is disposed so as to face toward the fan wheel with the base wall thereof being disposed at a predetermined spacing from the periphery of the fan wheel. The U-shaped channel has a pass-through formed in the base wall at a pregiven spacing downstream from the fan wheel for passing a portion of the cooling-air flow to the space as combustion air for the engine. The pass-through defines a plane and a center axis perpendicular to the plane. The U-shaped channel is configured to impart a predetermined direction of flow to the cooling-air flow at the region of the pass-through and the center axis and the predetermined direction of flow conjointly define an angle .beta. having a value in a range of approximately 70.degree. to 180.degree..

摘要翻译： 本发明涉及一种包括电动链锯，切断机等的便携式手持式工作装置。 工作装置包括安装在壳体中的壳体和内燃机，用于驱动作业工具。 壳体限定了一个空间，所述发动机从该空间吸入燃烧空气，并且风扇叶轮设置在壳体中，用于产生冷却空气流，该冷却空气流将风扇叶片沿与风扇叶轮的周边相切的方向离开以冷却发动机。 壳体具有用于进行冷却空气流动的U形通道。 U形通道设置成面向风扇叶片，其底壁以与风扇叶轮周边预定的间隔设置。 U形通道具有在风扇叶下游的预制间隔处形成在底壁中的通孔，用于将一部分冷却空气流作为用于发动机的燃烧空气的空气流。 通过定义垂直于平面的平面和中心轴。 U形通道被配置为在通过和中心轴线的区域以及流动的预定方向上向冷却空气流赋予预定的流动方向，并且联合地限定具有在 约70°至180°。

公开(公告)号：US4771160A

公开(公告)日：1988-09-13

申请号：US883109

申请日：1986-07-08

申请人： Franz F. Pitsch ,  Lothar Ulrich

发明人： Franz F. Pitsch ,  Lothar Ulrich

IPC分类号： B23K11/31 ,  B23K11/00

CPC分类号： B23K11/314 ,  B23K11/317

摘要： Welding tongs for dot or spot welding having two arms which are disposed without crossing relationship and carrying weld electrodes respectively on one end. The arms are made of flat, spaced bars, and a substantially flat spacing member made of an elastic or resilient material, spaces the two arms from each other thereby interconnecting the tong arms in a range of pivot motion of the arms. An E-shaped mounting member limits lateral deflection of the tong arms and holds the spacing member. A hydraulic drive is connected to the other ends of the tong arms for obtaining the pivot motion of the arms in relation to each other, through tensioning and upsetting or compression of the spacing member.

摘要翻译： 用于点焊或点焊的焊钳具有两个不相交关系的臂，分别在一端承载焊接电极。 臂由平坦且间隔开的杆形成，并且由弹性或弹性材料制成的基本上平坦的间隔构件将两个臂彼此间隔开，从而在臂的枢转运动的范围内互连钳臂。 E形安装构件限制钳臂的横向偏转并保持间隔构件。 液压驱动器连接到钳臂的另一端，以通过间隔构件的张紧和镦锻或压缩获得臂相对于彼此的枢转运动。