In a combination of a sprocket arrangement (128) and a saw chain (16), a sprocket tooth spacing (T1) between consecutive sprocket teeth (40) relates to a drive link spacing between consecutive drive links (30) of the saw chain (16) such that the guide teeth (42) of two or more drive links (30) may enter between a pair of consecutive sprocket teeth (40).

In a combination of a sprocket arrangement (128) and a saw chain (16), a sprocket tooth spacing (T1) between consecutive sprocket teeth (40) relates to a drive link spacing between consecutive drive links (30) of the saw chain (16) such that the guide teeth (42) of two or more drive links (30) may enter between a pair of consecutive sprocket teeth (40).

A cutting chain for cutting mineral or metallic materials has central drive links with a projection. Pairs of two side members are positioned laterally at the central drive links. The central drive links and the side member pairs are pivotably connected to each other. At least two cutting members are arranged sequentially in running direction of the cutting chain and each have one pair of side members and an abrasive cutting element connecting the two side members to each other. A drive link is arranged between the two cutting members and the projection of the drive link projects into a space between the cutting elements. The cutting chain has a cutout arranged such that a maximum sag of the cutting chain, at which the projection of the drive link comes into contact with one of the cutting elements, is enlarged compared to the same cutting chain without cutout.

A cutting chain for a chainsaw may include a plurality of drive links, and a plurality of cutter links. Each of the drive links includes a top portion and a bottom portion that interfaces with a guide bar of the chainsaw. The cutter links are operably coupled to respective ones of the drive links at the top portion thereof. At least one of the cutter links includes a base portion and a cutting portion extending away from the base portion. The cutting portion includes a side plate and a top plate, the top plate including a top face and a bottom face. The side plate includes an outer face and an inside face. Multiple coating materials are provided on respective different surfaces of the drive links or cutter links such that different coating materials are applied based on a wear context of the respective different surfaces.

A cutting chain for a chainsaw may include a plurality of drive links, and a plurality of cutter links. Each of the drive links includes a top portion and a bottom portion that interfaces with a guide bar of the chainsaw. The cutter links are operably coupled to respective ones of the drive links at the top portion thereof. At least one of the cutter links includes a base portion and a cutting portion extending away from the base portion. The cutting portion includes a side plate and a top plate, the top plate including a top face and a bottom face. The side plate includes an outer face and an inside face. Multiple coating materials are provided on respective different surfaces of the drive links or cutter links such that different coating materials are applied based on a wear context of the respective different surfaces.

A saw apparatus includes a guide bar, a chain driver, and an endless cutting chain trained about the guide bar and the chain driver. The guide bar includes a first chain retention feature along at least a portion of its periphery, and the cutting chain includes a second chain retention feature configured to interact with the first chain retention feature such that movement of the second chain retention feature away from the guide bar is restricted. A timber-working device includes a frame, at least one pair of arms pivotally attached to the frame and configured to be controlled to grasp at least one tree, and the saw apparatus mounted to the frame.

A saw apparatus includes a guide bar, a chain driver, and an endless cutting chain trained about the guide bar and the chain driver. The guide bar includes a first chain retention feature along at least a portion of its periphery, and the cutting chain includes a second chain retention feature configured to interact with the first chain retention feature such that movement of the second chain retention feature away from the guide bar is restricted. A timber-working device includes a frame, at least one pair of arms pivotally attached to the frame and configured to be controlled to grasp at least one tree, and the saw apparatus mounted to the frame.

The present disclosure belongs to technical field of gardening tools, relates to 3/16 pitch micro saw chain of motor driven saw chain. It saw chain of motor driven saw chain is composed of left gear cutting chain sheet, right gear cutting chain sheet, side connecting sheet and transmission sheet with transmission function by riveting chain shaft. The width A of saw line is confirmed by upper cutter point of left/right gear cutting chain sheet and width A of saw line is 4.4-5.4 mm. A maximum height C is confirmed from bottommost end of transmission sheet with transmission function top highest part of left/right gear cutting chain sheet, maximum height C is 8.5-9.8 mm. An average pitch is confirmed by hole pitch T1 of transmission sheet with transmission and hole pitch T2 of side connecting sheet, left and right gear cutting chain sheet, T(T1+T2)/2=4.76 mm, S=178-252 mm3. The present disclosure has higher cutting efficiency, light weight, easy operation, no easy shaking during use, smooth section, stronger stability, safety, lower power consumption.

The present invention relates to a novel cutting apparatus capable of effectively cutting a material via movement in at least two different directions. In certain embodiments, the cutting apparatus comprises cutting elements with at least two cutting surfaces. Such cutting elements are capable of effectively penetrating a material when moved with an applied force in the direction that at least one cutting surface is oriented. Such cutting elements may be configured for use with a variety of cutting apparatus, including but not limited to chainsaws, circular saws, band saws, jigsaws or tigersaws.

The present invention relates to a novel cutting apparatus capable of effectively cutting a material via movement in at least two different directions. In certain embodiments, the cutting apparatus comprises cutting elements with at least two cutting surfaces. Such cutting elements are capable of effectively penetrating a material when moved with an applied force in the direction that at least one cutting surface is oriented. Such cutting elements may be configured for use with a variety of cutting apparatus, including but not limited to chainsaws, circular saws, band saws, jigsaws or tigersaws.