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公开(公告)号：US4543723A
公开(公告)日：1985-10-01
申请号：US490565
申请日：1983-05-02
Applicant: Manfred Bortfeld , Eberhard Schieber , Gunter Dietzsch
Inventor： Manfred Bortfeld , Eberhard Schieber , Gunter Dietzsch
IPC: B27G19/06 , B27B17/00 , B27B17/08 , F02B63/02 , F02P9/00 , F02P11/02 , F16P3/20 , H01H3/14 , H01H9/06 , H01H9/54 , B27B17/02
CPC classification number: B27B17/083 , B27B17/0008 , B27B17/0033 , F16P3/20 , H01H9/06 , H01H3/142 , H01H9/547 , Y10S83/01
Abstract: The invention is directed to a safety arrangement for a power-driven portable tool such as a motor-driven chain saw or the like. The portable tool has a housing equipped with two handles both of which are grasped by the operator to hold and guide the tool during use thereof. One of the handles is a bail handle mounted at the forward part of the housing. The safety arrangement includes two switches associated with respective ones of the handles. The switches are operatively connected to the motor so as to cause the same to be operative only when both switches are closed. At least a portion of one of the contacts of the bail handle switch is displaceable from a first position whereat the bail handle switch is open to a second position whereat the switch contacts come into mutual contact and the bail handle switch is closed. An elastic body associated with the bail handle acts on the one contact to effect the displacement to the second position in response to pressure applied to the elastic body by the operator of the tool when grasping the bail handle.
Abstract translation: 本发明涉及一种用于诸如电动链锯等的动力便携式工具的安全装置。 便携式工具具有壳体，其具有两个手柄，两个手柄都由操作者抓握以在使用期间保持和引导工具。 手柄之一是安装在外壳前部的保释手柄。 安全装置包括与相应的把手相关联的两个开关。 这些开关可操作地连接到电动机，以便仅当两个开关闭合时才使其起作用。 保释手柄开关的触点之一的至少一部分可从吊环开关打开的第一位置移动到开关触点相互接触的第二位置，并且吊环开关关闭。 与保释手柄相关联的弹性体作用在一个接触件上，以响应于在握住吊钩把手时由工具的操作者施加到弹性体上的压力而实现位移到第二位置。
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公开(公告)号：US4409874A
公开(公告)日：1983-10-18
申请号：US226731
申请日：1981-01-21
Applicant: Karl Nitschmann , Hans Dolata , Gunter Dietzsch
Inventor： Karl Nitschmann , Hans Dolata , Gunter Dietzsch
CPC classification number: B27B33/141 , B27B33/142 , Y10T83/866 , Y10T83/921 , Y10T83/925
Abstract: A saw chain for chain saws, particularly portable power chain saws, comprising chain members which are pivotally connected with each other. At least some of the chain members are provided with a safety marking to show the extent of wear.
Abstract translation: 用于链锯的锯链，特别是便携式动力链锯，包括彼此枢转地连接的链条构件。 至少一些链条件具有安全标记以显示磨损程度。
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Patent Agency Ranking
公开(公告)号：US3938633A
公开(公告)日：1976-02-17
申请号：US332259
申请日：1973-02-14
Applicant: Gunter Dietzsch , Gerd Frers , Dieter Wieland
Inventor： Gunter Dietzsch , Gerd Frers , Dieter Wieland
Abstract: A motor chain saw in which serially arranged clutches are interposed between the motor output shaft and the chain of the saw. The clutches include a centrifugal clutch and a mechanically controlled clutch. The mechanically controlled clutch has at least one drive element having an engaged position and a disengaged position and is acted on by centrifugal force urging it toward the position which it occupies. A spring urges the device element toward engaged position with a force less than the centrifugal force which acts on the drive element above a certain speed. The mechanically controlled clutch includes at least one control operable to move the drive element in at least disengaging direction during rotation of the clutch.
Abstract translation: 一种马达链锯，其中串联布置的离合器插入在马达输出轴和锯链之间。 离合器包括离心离合器和机械控制的离合器。 机械控制的离合器具有至少一个具有接合位置和脱离位置的驱动元件，并通过离心力作用，驱动元件朝向其所占据的位置。 弹簧以小于在一定速度上作用在驱动元件上的离心力的力将装置元件推向接合位置。 机械控制的离合器包括至少一个控制器，可操作以在离合器的旋转期间以至少脱离方向移动驱动元件。
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公开(公告)号：US4635364A
公开(公告)日：1987-01-13
申请号：US722112
申请日：1985-04-11
Applicant: Wilfried Noll , Konrad Ehmann , Hans P. Stehle , Wolfgang Dorner , Gunter Dietzsch
Inventor： Wilfried Noll , Konrad Ehmann , Hans P. Stehle , Wolfgang Dorner , Gunter Dietzsch
CPC classification number: F16D49/08 , B27B17/083 , F16D65/04 , F16D65/10 , F16D69/027
Abstract: The invention is directed to a braking arrangement for a chain saw and includes a brake band and a brake drum which form friction partners with their associated friction surfaces during braking. At least the friction surface of one of the friction partners includes a material which is resistant to conversion to martensitic structure. Particularly suitable materials are those having a cubic face-centered lattice structure, such as, for example, austenitic steel or chrome-nickel steel.
Abstract translation: 本发明涉及一种用于链锯的制动装置，并且包括在制动期间与其相关联的摩擦表面形成摩擦配对的制动带和制动鼓。 至少摩擦对象之一的摩擦表面包括耐转变成马氏体结构的材料。 特别合适的材料是具有立方体面心晶格结构的材料，例如奥氏体钢或铬镍钢。
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公开(公告)号：US4558621A
公开(公告)日：1985-12-17
申请号：US633196
申请日：1984-07-23
Applicant: Karl Nitschmann , Wilfried Linke , Gunter Dietzsch , Werner Hartmann , Hans-Georg Kaiser , Werner Meyle , Hans Dolata
Inventor： Karl Nitschmann , Wilfried Linke , Gunter Dietzsch , Werner Hartmann , Hans-Georg Kaiser , Werner Meyle , Hans Dolata
IPC: B27B33/14
CPC classification number: B27B33/141 , Y10T83/909 , Y10T83/925
Abstract: The invention is directed to a saw chain for a motor-driven chain saw which includes cutting links, side connecting links, driving links and safety links. Each safety link has an upper edge defining a wave-like contour that prevents chips from accumulating during the cutting action. The cutting links and safety links of the saw chain are arranged with respect to each other so that overlap is avoided between the tail end of the rearward projection of the safety link and the forward projection of the depth limiter of the cutting tooth. This affords the advantage that cutting chips do not become jammed therebetween.
Abstract translation: 本发明涉及一种用于电动链锯的锯链，其包括切割链接，侧连接链接，驱动链接和安全链接。 每个安全连杆具有限定波形轮廓的上边缘，防止切屑在切割过程中积累。 锯链的切割链节和安全链条相对于彼此布置，使得在安全链节的向后突起的尾端和切割齿的深度限制器的向前突起之间避免重叠。 这提供了切割切屑不会卡在其间的优点。
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公开(公告)号：US4016964A
公开(公告)日：1977-04-12
申请号：US663293
申请日：1976-03-03
Applicant: Gunter Dietzsch , Gerd Frers , Klaus Henning , Helmut Lux
Inventor： Gunter Dietzsch , Gerd Frers , Klaus Henning , Helmut Lux
CPC classification number: F16D43/18
Abstract: A rotor for a centrifugal clutch which rotor is designed as an axially laminated packet and is provided with a central supporting element carrying at least two circular segmental centrifugal weights respectively having one end thereof connected to the supporting element by an elastic supporting member.
Abstract translation: 一种用于离心式离合器的转子，其转子被设计为轴向层压的包装，并且设置有中心支撑元件，所述中心支撑元件承载至少两个圆形节段离心重物，所述中心支撑元件的一端通过弹性支撑构件连接到支撑元件。
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公开(公告)号：US4554853A
公开(公告)日：1985-11-26
申请号：US541301
申请日：1983-10-12
Applicant: Karl Nitschmann , Hans Dolata , Gunter Dietzsch
Inventor： Karl Nitschmann , Hans Dolata , Gunter Dietzsch
CPC classification number: B27B33/141 , B27B33/142 , Y10T83/866 , Y10T83/921 , Y10T83/925
Abstract: The invention is directed to a safety arrangement for a saw chain which includes cutting links. A first safety mark is formed in the outside surface of the upwardly-extending portion of the rearmost wall of the cutting link. This first safety mark is disposed at a predetermined distance from the trailing edge of the cutting link and extends in a direction substantially parallel thereto. A second safety mark is formed in the wall of the depth limiter and extends from the leading edge of the cutting link to a notch between the depth limiter and the cutting tooth. The second safety mark is disposed at a predetermined distance below the engaging edge of the limiter. The first safety mark defines the rearmost position to which the blade and the upwardly-extending portion of the cutting tooth can be safely worn provided that the engaging edge of the depth limiter has not been worn down to an elevation below the second safety mark whereby the marks provide positive visual indications to an operator when further use of the saw chain would be unsafe.
Abstract translation: 本发明涉及一种包括切割链节的锯链的安全装置。 在切割链节的最后壁的向上延伸部分的外表面上形成第一安全标记。 该第一安全标记设置在距离切割链接的后缘预定距离处并且沿与其大致平行的方向延伸。 在深度限制器的壁上形成第二安全标记，并且从切割链节的前缘延伸到深度限制器和切割齿之间的凹口。 第二安全标记设置在限制器的接合边缘下方的预定距离处。 第一安全标记定义了最后面的位置，刀片和切割齿的向上延伸的部分可以被安全地佩戴在其上，只要深度限制器的接合边缘没有磨损到低于第二安全标记的高度， 当进一步使用锯链不安全时，标记为操作者提供正面的视觉指示。
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