-
公开(公告)号：US4796360A
公开(公告)日：1989-01-10
申请号：US114657
申请日：1987-10-29
CPC分类号： B27B33/141 , B27B17/08 , B27B33/14 , Y10T83/925
摘要： For motor-driven chain saws, there is the danger that the chain saw will be kicked back if the reaction forces suddenly increase intensely in response to the forward thrust. This kickback effect and the danger of accident associated therewith are intended to be reduced by means of a special configuration of the saw chain. The saw chain has drive links which have an approximately triangular shape and which engage the tooth gaps of the nose sprocket with inclined flanks. The drive links are configured to be asymmetrical with respect to a partition line running between the two pivot axes of the link so that the forward flank angle is greater than the rearward flank angle referred to the partition line. The two flank angles together are greater than the opening angle of the V-shaped tooth gap of the nose sprocket. The saw chain can be configured as a low-profile chain with the spacing between the pivot axes of the cutting link being at least 10% greater than the spacing of the cutting edge to the plane containing the connecting line between the two pivot axes of the cutting link. Furthermore, the depth limiter can have an area in its upper region which is at least 4 mm.sup.2.
摘要翻译： 对于电动链锯，如果反作用力响应于向前推力突然增加，链锯将被踢回来。 这种反冲效应和与之相关的事故的危险旨在通过锯链的特殊配置来减少。 锯链具有大致三角形的驱动连杆，并且与倾斜的侧面啮合在前端链轮的齿隙上。 驱动连杆构造成相对于在连杆的两个枢转轴线之间运行的分隔线是不对称的，使得前侧面角大于参考分隔线的后侧面角。 两个侧角一起大于前端链轮的V形齿间隙的开度角。 锯链可以被配置为低轮链，切割链节的枢转轴线之间的间隔比切割边缘的间距至包含在两个枢转轴线的两个枢转轴线之间的连接线的平面的至少大10％ 切割链接。 此外，深度限制器可以在其上部区域中具有至少4mm 2的区域。
-
公开(公告)号：US4747214A
公开(公告)日：1988-05-31
申请号：US114557
申请日：1987-10-29
CPC分类号： B27B33/14 , B27B33/142 , Y10T83/921
摘要： With motor-driven chain saws, there is the danger that the chain saw will be thrown upwardly and rearwardly when it is applied to wood by the user with a forward thrust. Serious injuries can then occur. The invention is directed to a saw chain which is so configured that the cutting forces are automatically reduced in response to the occurrence of excessive reaction forces so that the reaction force is immediately reduced to a tolerable amount thereby eliminating the kickback effect. The drive links of the saw chain which engage into the nose sprocket of the guide bar are so dimensioned that they can further pivot in the tooth gaps of the nose sprocket out of their normal position and, in this way, take the cutting links with them in such a manner that the free angle .alpha. of the cutting teeth is reduced.
摘要翻译： 对于电动链锯，当用户以向前推力施加到木材上时，存在链锯向上和向后抛出的危险。 可能会发生严重的伤害。 本发明涉及一种锯链，其被构造成使得切割力响应于过大的反作用力的发生而自动减小，使得反作用力立即降低到可容许的量，从而消除了反冲效应。 啮合到导杆的前端链轮中的锯链的驱动连杆的尺寸使得它们能够进一步在前端链轮的齿隙中枢转脱离其正常位置，并且以这种方式与它们相连接切割链接 以使得切削齿的自由角α减小的方式。
-
公开(公告)号：US4754549A
公开(公告)日：1988-07-05
申请号：US115265
申请日：1987-10-29
申请人： Manfred Fischer , Wilfried Linke , Werner Hartmann
发明人： Manfred Fischer , Wilfried Linke , Werner Hartmann
CPC分类号： B27B17/08 , B27B33/14 , Y10T83/909
摘要： With motor-driven chain saws, there is the danger that the chain saw will be thrown upwardly and rearwardly when it is applied to wood by the user with a forward thrust. Serious injuries can then occur. The invention is directed to a motor-driven chain saw which is so configured that the cutting forces are automatically reduced in response to the occurrence of excessive reaction forces so that the reaction force is immediately reduced to a tolerable amount thereby eliminating the kickback effect. The drive links engaging the nose sprocket of the guide bar are so dimensioned that they can further pivot in the tooth gaps of the nose sprocket out of their normal position and, in this way, take the cutting links with them in such a manner that the free angle of the cutting teeth is reduced. The drive links are latched in the pivoted-in position on the nose sprocket in order to assure that the cutting links will retain the position with the reduced free angle over the entire turnaround region of the guide bar. For this purpose, latches are provided on the drive links and/or on the nose sprocket.
摘要翻译： 对于电动链锯，当用户以向前推力施加到木材上时，存在链锯向上和向后抛出的危险。 可能会发生严重的伤害。 本发明涉及一种电动链锯，其结构使得响应于过大的反作用力的发生自动地减少切割力，使得反作用力立即降低到可容许的量，从而消除了反冲效应。 接合引导杆的前端链轮的驱动连杆的尺寸使得它们能够进一步在前端链轮的齿隙中枢转脱离其正常位置，并且以这种方式，以这样的方式取下切割链接： 切削齿的自由角度减小。 驱动连杆被锁定在前端链轮上的枢转位置中，以确保切割链节将在引导杆的整个转向区域上以较小的自由角保持该位置。 为此，在驱动链路和/或在前端链轮上提供了闩锁。
-
公开(公告)号：US4558621A
公开(公告)日：1985-12-17
申请号：US633196
申请日：1984-07-23
申请人： Karl Nitschmann , Wilfried Linke , Gunter Dietzsch , Werner Hartmann , Hans-Georg Kaiser , Werner Meyle , Hans Dolata
发明人： Karl Nitschmann , Wilfried Linke , Gunter Dietzsch , Werner Hartmann , Hans-Georg Kaiser , Werner Meyle , Hans Dolata
IPC分类号： B27B33/14
CPC分类号： B27B33/141 , Y10T83/909 , Y10T83/925
摘要： 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.
摘要翻译： 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。
-
公开(公告)号：US4597178A
公开(公告)日：1986-07-01
申请号：US617757
申请日：1984-06-06
申请人： Hans Dolata , Werner Meyle , Wilfried Linke , Hermann Hagele , Ernst Buck
发明人： Hans Dolata , Werner Meyle , Wilfried Linke , Hermann Hagele , Ernst Buck
CPC分类号： F16P1/02 , B23D63/168 , B24B3/368 , B27G19/003
摘要： This disclosure is directed to a saw chain sharpener for a motor-driven chain saw having a guide bar assembly that includes a guide bar and a saw chain guidingly mounted thereon. The saw chain sharpener includes an elongated chain guard casing for removably receiving the guide bar assembly therein. The chain guard casing defines a cavity in the forward end thereof adjacent the nose of the guide bar. A sharpening device is mounted in the cavity for sharpening the saw chain whereby the device is contained within the casing.
摘要翻译： 本公开涉及一种用于电动链锯的锯链磨刀机，其具有引导杆组件，该导杆组件包括引导杆和导向地安装在其上的锯链。 锯链磨刀器包括细长的链条防护罩，用于在其中可拆卸地接收导杆组件。 链条防护罩在其前端邻近引导杆的鼻部限定一个空腔。 磨削装置安装在腔体中，用于磨削锯链，由此将装置容纳在壳体内。
-
-
-
-
搜索结果
5 条记录 (耗时 0.02 秒)
