Andreas Stihl

Other

Hans-Georg Kaiser

Hans Dolata

Werner Meyle

Werner Hartmann

Karl Nitschmann

Wilfried Linke

Gunter Dietzsch

Gotz Landwehr

Gunther Weyda

Bernd Lindemann

Gerhard Odenwald

The invention is directed to a saw chain for a power-driven chain saw. The saw chain includes a plurality of cutting links, a plurality of connecting links and a plurality of driving links. The links are interconnected by rivets to define the saw chain. The cutting links include a cutting tooth and a rearward foot defining a tilt edge. The cutting link tilts about the tilt edge when the cutting tooth penetrates the wood to be cut. In tilting about the tilt edge, the cutting edge of the cutting tooth is raised from a first elevation to a second elevation and the difference between these elevations is the tilt displacement. The tilt edge lies in a vertical plane which is perpendicular to a traverse plane containing the axes defined by the forward and rearward openings for the linkage rivets connecting the cutting link to the rest of the saw chain. The tilt edge is formed on the rearward foot at a location thereon such that the vertical plane lies within the forward half of the cutting tooth thereby reducing the tilt displacement to a predetermined magnitude. Accordingly, during the cutting operation of the saw chain, the tilt displacement is small and the cutting tooth does not draw itself into the wood to too great an extent whereby a more uniform cutting action by the cutting teeth of the cutting links is achieved and vibration of the saw chain is reduced.

Saw chain for a power-driven chain saw

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.

Saw chain for a chain saw

A sharpening device, for the saw chain of a motor chain saw, with a holding device for a sharpening element which is arranged in the region of the reversing radius and is curved approximately concavely with respect to the center of this reversing radius. The sharpening element is seated upon an adjustment lever which is pivotable in a direction toward the saw chain. This lever cooperates with a screw device which determines the feed path of the sharpening element. An actuating handle is provided for the feeding of the sharpening element; this handle is arranged on that side of the housing of the chain saw located remote from the free reversing end of the guide bar of the saw chain. The actuating handle is preferably releasably secured in the grasping range of the front handle of the chain saw. The actuating handle is connected by a yieldable shaft with a threaded bolt associated with the feeding device, and the nut piece of the threaded bolt is seated in an extension of a support plate connected with the guide bar, that end segment of the threaded bolt which projects freely from the nut piece pressing against an adjustment lever pivotally journalled on the support plate. The adjustment lever supports the sharpening element and is spring biased, with the spring endeavoring to pivot the adjustment lever, together with the sharpening element, in a radial direction against the axis of the reversing chain gear.

Sharpening device for a back-sharpened saw chain of a motor chain saw

Growing community of inventors

Kongen, Germany

Hans-Georg Kaiser