467results about "Chain saws" patented technology

A job-site tool in one aspect of the present disclosure includes: a display; a flexible printed circuit; and a control circuit. The display is visible tool from outside and includes at least one surface light emitter. The flexible printed circuit includes conductive traces. The at least one surface light emitter is on the flexible printed circuit and is electrically connected to the conductive traces. The control circuit is electrically connected to the display via the conductive traces.

A chainsaw includes a housing with a body portion and a motor portion disposed on a left or right side of the body portion, a guide plate, a chain, a drive assembly including an electric motor, a power supply device, a top handle, a side handle and a circuit board assembly. The top handle is disposed on and connected to an upper side of the body portion, and the rear portion is located below a handle rear end of the top handle. The side handle is disposed on a same side of the body portion together with the motor portion. The circuit board assembly is disposed in the rear portion of the body portion, and located between the power supply device and the drive assembly in a front and rear direction. An overall length of the chainsaw is smaller than or equal to 230 mm.

An electric work machine with improved workability at high output, configured to cut a work target, is provided. The electric work machine comprises: a working portion configured to cut the work target and a main body including: a housing; a flow path forming portion; a motor; and a control unit, wherein the motor generates rotational power for driving the working portion, the control unit electrically controls rotation of the motor, the flow path forming portion forms an air flow path including a first air flow path and a second air flow path, the first air flow path communicates with an exterior of the housing to allow external air to flow to the motor via the control unit, and the second air flow path communicates with the exterior of the housing so as to allow external air to flow directly to the motor.

The utility model relates to the technical field of cutting heads, in particular to a cutting head cutting device which comprises a chain plate, a chain wheel and a saw assembly support, a chain-shaped blade is mounted on the chain wheel and the chain plate, a saw guide seat is assembled on the saw assembly support, and a saw guide plate is slidably arranged on the saw guide seat. The saw guide plate is connected with the chain plate; the saw further comprises a displacement assembly and a locking assembly. The displacement assembly is used for driving the saw guide plate to move so as to adjust the tension degree of the chain-shaped blade. And the locking assembly is used for locking the saw guide plate. The utility model has the advantages that the chain-shaped blade is convenient to tighten, adjust and replace, the reliability is good, and the like.

The utility model provides a double-pack chain saw which comprises a main body shell, a guide plate, a saw chain, an electric motor and a handle, and a first battery pack and a second battery pack are arranged in parallel in the axial direction of forward protruding and extending of the guide plate; the bottoms of the first battery pack and the second battery pack do not protrude out of the bottom of the main body shell; or, the bottoms of the first battery pack and the second battery pack protrude out of the bottom of the main body shell, so that the bottom of the first battery pack and the bottom of the second battery pack jointly form a horizontal supporting part of the chain saw. According to the technical scheme, the first battery pack and the second battery pack are arranged in parallel in the axial direction of forward protruding and extending of the guide plate, so that the layout of the battery packs is more regular and ordered, and operation and use are convenient.

The invention relates to the technical field of chain saws, and discloses a chain saw with a safety protection structure, a second rotating shaft movably penetrates through the interior of a fixed cylinder, a protection frame is fixedly connected to one end of the second rotating shaft and is located on the outer side of a fixed cover body and the outer side of a shell, and the other end of the second rotating shaft is located in the fixed cylinder and movably sleeved with a second torsional spring; the other end of the second rotating shaft is fixedly connected with a push block on the outer side of the second torsional spring, and a touch switch is mounted on the outer side of the fixed cylinder and in the shell. When the chain saw moves downwards to be close to the leg of a person, a blocking frame on a protection frame abuts against the leg of the person, the protection frame is stressed to abut against the bottom of a limiting block and drives a second rotating shaft to rotate, the chain saw is supported through the protection frame, and a saw chain on a guide plate is prevented from being close to the leg of the person; meanwhile, the second rotating shaft rotates to drive the push block to abut against and press the outer side of the touch switch, the circuit is disconnected, the driving motor stops rotating, personnel are prevented from being injured, and guarantee is provided for personnel safety.

The utility model provides a chain saw, which comprises an oil liquid supply system, an oil liquid supply system, an oil liquid supply system, an oil liquid supply system and an oil liquid supply system, and the oil tank is used for storing oil liquid and comprises an oil liquid outlet and an oil liquid inlet; the first end of the oil outlet pipe is connected with the oil liquid outlet; the first end of the oil supply pipe is arranged towards the to-be-lubricated component; the oil pumping assembly comprises a pump body inlet and a pump body outlet, the pump body inlet is connected with the second end of the oil outlet pipe, and the pump body outlet is connected with the second end of the oil supply pipe; the oil pumping assembly can be switched between the forward rotation state and the reverse rotation state so that oil in the oil tank can be pumped out through the oil outlet pipe and supplied to a to-be-lubricated part through the oil supply pipe, or oil in the oil supply pipe can be sucked out and conveyed back into the oil tank through the oil outlet pipe. And residual lubricating oil in the oil pipe may overflow.

The application provides a handheld power tool, and relates to the technical field of electric tools.The handheld power tool comprises a housing, a handle arranged on the housing, a motor arranged in the housing, a transmission mechanism comprising a transmission component, a coaxially arranged output disc and a chain wheel, the transmission component being connected with the motor, and the output disc being matched with the transmission component, and a saw chain sleeved on the chain wheel; wherein the center line L1 of the saw chain intersects with the center line L2 of the motor at a first intersection point S1, the center line L1 of the saw chain intersects with the center line L3 of the handle at a second intersection point S2, and the first intersection point S1 and the second intersection point S2 are both arranged on the outer side of the output disc. By arranging the first intersection point S1 and the second intersection point S2 on the outer side of the output disc, the included angle between the saw chain and the motor and the handle is reasonably arranged.

A chainsaw is provided, enabling to remove sawdust conveyed inside a main body efficiently, which has a main body including: a guide bar; a saw chain wound around the guide bar and the drive sprocket; a drive sprocket disposed behind the guide bar, having a rotation shaft in a right / left direction of the main body and rotated to move the saw chain along the guide bar; and a guide wall including an arcuate first wall along the drive sprocket with a predetermined gap from the saw chain and a second wall extended rearward via a connecting portion to the first wall, and when seen from the right / left direction, a angle between: a first direction along a vertical direction of the main body; and a second direction passing through the center of the rotation shaft and an apex of the connecting portion is between 0° and 30°.

The utility model provides a chain saw. The chain saw comprises a main body shell; a guide plate provided so as to protrude forward from the main body case; the saw chain is arranged on the periphery of the guide plate in a tensioning manner; an electric motor which is provided inside the main body housing and which rotates the saw chain along the outer periphery of the guide plate; a handle having a gripping portion to be gripped by an operator; the at least one battery pack is assembled on the main body shell in a detachable manner and is suitable for supplying power to the electric motor; when the chain saw is observed from above in the state that the chain saw is arranged on the horizontal supporting surface, the projection of the electric motor and the projection of the at least one battery pack on the horizontal supporting surface are at least partially overlapped. When a user operates and uses the chain saw to conduct cutting operation, due to the fact that the gravity center of the chain saw further deviates towards the front end, the chain saw inclines downwards and forwards due to the dead weight, more labor is saved when the user conducts cutting operation downwards, and the cutting efficiency is improved. Therefore, the user can use and operate conveniently.

Systems and methods for configuring a power tool. One system includes a power tool communication system that includes an external device and a power tool. The external device includes a user interface configured to receive a first selection to enable a feature of a power tool, and receive a second selection of a threshold of a motor characteristic of the power tool. The power tool includes a motor within a housing. The power tool receives the selected feature and the selected threshold from the external device. The power tool includes a sensor configured to monitor the motor characteristic of the motor. The power tool further includes an electronic processor that controls the motor to operate according to the selected feature and adjusts an operating parameter of the motor when the motor characteristic is determined to cross the selected threshold.

The chain saw chip removal structure comprises a chain saw body, a side cover installed on the chain saw body and a chip prevention cover assembly movably installed on the side cover, the side cover and the chain saw body are matched to form a first chip removal opening, a second chip removal opening is formed in the side cover, and a chip removal cavity is formed in the chain saw body. And the first chip removal opening and the second chip removal opening are both communicated with the chip removal cavity. According to the chain saw, the first chip removal opening and the second chip removal opening are formed, and the chip removal direction of the upper chip removal opening is vertical, so that when the chain saw performs vertical cutting or transverse cutting, at least one chip removal opening can be used for effectively removing chips, the possibility that the chips are blocked in the chip removal cavity is reduced, the cleaning frequency of operators is reduced, and the working efficiency is improved. And the working efficiency of operators is improved.

The invention relates to a method for automatically determining cleaning, maintenance and / or repair information (Info) of a motor-driven machining tool (2), wherein the machining tool (2) has residues (RS) which are optically detectable from the outside and which are caused during operation of the machining tool (2), wherein the method comprises the following steps: a) optically detecting the residues (RS); b) classifying the detected residues (RS) depending on the kind (AT) of the residues (RS); c) determining cleaning, maintenance and / or repair information (Info) on the basis of the classification; and d) outputting the determined cleaning, maintenance and / or repair information (Info).

The present invention discloses a guide rail wooden packaging box production line and a processing method thereof, comprising a chain plate line, wherein the chain plate line is sequentially provided with a storage mechanism, a loading mechanism, a box sealing device, and a wooden box cutting structure from one side to the other. The storage mechanism is composed of a power roller line and a pushing device, and wooden boxes to be cut are placed on the power roller line; the loading mechanism is composed of a belt line, a feeding car, and a robotic arm, with the robotic arm located on one side of the belt line, and the belt line is symmetrically arranged on both sides of the feeding car; the wooden box cutting structure includes a vacuum cleaner and a bracket, which is composed of a high-position bracket and a low-position bracket; the box sealing device is composed of a mobile frame, a mobile cross frame, and nail guns, which are symmetrically fixed at both ends of the bottom side of the mobile cross frame. The present invention aims to provide a guide rail wooden packaging box production line and a processing method thereof with a high degree of automation, the ability to reduce manual handling steps, and safe operation.

Electric work equipment includes a body case, a work tool formed to protrude forward from a front portion of the body case, a motor housed in the body case and configured to drive the work tool, a battery removably disposed in the body case and configured to supply power to the motor, a handle protruding from the body case and configured to be gripped, a trigger lever disposed on a lower surface of the handle and configured such that power is supplied from the battery to the motor when pulled, and a switch panel disposed on an upper surface of the handle and including a power switch, the power switch being configured to make the motor operable when turned on and to stop operation of the motor when turned off, and is inclined downward from a right to left side thereof or from the left to right side thereof.

According to examples, a power tool may include a chassis and a guide bar mounted to the chassis, the guide bar having a central axis. The power tool may also include a handle attached to the chassis above the central axis of the guide bar and a motor housed within the chassis to drive a chain around the guide bar, in which the motor is positioned beneath the central axis of the guide bar and a central axis of the motor is at a certain angle with respect to the central axis. The handle, the motor, and the battery pack mount may be positioned with respect to the chassis to cause the power tool to substantially be balanced in both lateral and longitudinal directions about a location near the trigger mechanism when the battery pack is mounted to the battery pack mount.

A chainsaw, comprising: a main-unit housing having a front portion, a rear portion, and an intermediate portion between the front portion and the rear portion; and a battery pack attached to the rear portion of the main-unit housing and supplying power to at least an electric motor, wherein when the battery pack is attached to the main-unit housing and the chainsaw is stably placed, the orthographic projection of the whole chainsaw is observed in an up-down direction, and in a front-rear direction, the ratio of the overlap length L1 between the battery pack and the main-unit housing to the length L2 of the main-unit housing is greater than or equal to 0.3.

The present invention provides a chainsaw, specifically relating to the field of cutting tools. The chainsaw comprises a housing, a guide plate, a saw chain, a tool guard, and a bolt. A guide block and a first connecting hole are provided on one side of the housing. The guide plate is provided with a retaining groove that cooperates with the guide block. The saw chain is mounted on the guide plate and driven by a drive device disposed within the housing. The tool guard is provided with a second connecting hole corresponding to the first connecting hole. The bolt is rotatably retained on the tool guard and axially movable along the second connecting hole. When the guide plate is installed, the bolt passes through the guide plate and is threadedly connected to the first connecting hole to secure the guide plate between the tool guard and the housing. The chainsaw of the present invention is simple to assemble, and because the bolt remains attached to the tool guard, it can be prevented from being lost during assembly.

A working machine is provided that includes a working portion and a main body portion including a main body case, an operation mechanism and a power switch. The operation mechanism includes a trigger lever, a lockout lever, and a restricting portion. The trigger lever includes a trigger lever body, and an operation portion including a projection portion. When an external force toward the main body case is applied to the trigger lever body, the projection portion of the operation portion comes into contact with the restricting portion and the trigger lever body comes into contact with the lockout lever, so that the trigger lever body is prevented from rotating relative to the main body case. When the working machine is viewed from a normal direction of a flat surface while being placed on the flat surface, a rotation center of the trigger lever body overlaps with the power switch.

The present application provides an electric working machine, and a method of assembling a drive unit for driving a motor of the electric working machine, one aspect of which relates to an electric working machine provided with a motor, a circuit substrate, a first semiconductor switch, a second semiconductor switch, a first conductive line, a second conductive line, and a solid metal member. The circuit substrate has a first circuit surface, a second circuit surface, and a through hole. The first semiconductor switch is mounted on the first circuit surface and has a first terminal. The second semiconductor switch is mounted on the second circuit surface and has a second terminal. The first conductive line is disposed on the first circuit surface and electrically connected to the first terminal. The second conductive line is disposed on the second circuit surface and electrically connected to the second terminal. The solid metal member is inserted into the through hole and electrically connected to the first conductive line and the second conductive line.

The present invention relates to a handheld driving apparatus for mowing or cutting, preferably a brush cutter (1) or a chainsaw. The driving apparatus comprises a container (11), an action unit (2) and a controller (73). The container is configured to extend from a rear side toward a front side where the action unit is provided and configured to be driven such as to mow or cut. The controller (73) is configured to in a driving step, drive the action unit by controlling a drive output to a target value (PV1), in a monitoring step (A102, A103), monitor a state or behavior of the drive output with respect to the target value (PV1) during the control in the driving step, and in an adjusting step (A104), adjust the target value (PV1) based on the state or the behavior during the monitoring. This reduces noise generation and improves energy efficiency.

To improve the heat dissipation efficiency of semiconductor switches in electric power tools. [Solution] One aspect of the present disclosure provides an electric work machine comprising a motor, a circuit board, a semiconductor switch, a metal plate, a heat dissipation member, and a male screw. The semiconductor switch is a semiconductor switch on a circuit board, having a first metal surface and a first mounting surface, and is electrically connected to a power supply and a motor. The first mounting surface is opposite to the first metal surface and faces the first circuit surface of the circuit board. The metal plate has a first plate surface bonded to the first metal surface and a second plate surface opposite to the first plate surface. The heat dissipation member is in direct or indirect contact with the second plate surface. The male screw fastens the heat dissipation member and the metal plate.

A hand-held chainsaw device (1) is described, comprising a motor housing (20) with a first side (21) and an opposing second side (22), the first side (21) having a first opening through which a first drive shaft section (33) projects for driving a sprocket (14), and an electric motor (30) for driving the sprocket (14), wherein a stator (32) of the electric motor (30) is arranged in the motor housing (20) between the first side (21) and the second side (22), and a handle (61) for holding and guiding the chainsaw device (1) with a handle axis (87) extending between the first side (21) and the second side (22), and an oil tank (17) for storing lubricating oil for a saw chain (16) driven by the sprocket (14), and an oil pump (40) for delivering lubricating oil from the oil tank (17) through an oil channel (41). to an oil delivery opening (42),wherein the motor housing (20) comprises a motor housing base body (23) and a motor housing cover (24) which closes the motor housing base body (23) on the second side (22), wherein the motor housing cover (24) has a second opening (26) through which a second drive shaft section (34) protrudes and the oil pump (40) is driven by the second drive shaft section (34).

The utility model discloses a dust falling device for a chain saw, relates to the field of chain saws, and aims to solve the problems that dust generated when the chain saw is used in the prior art contains a large amount of wood chips, and a dust suction port of an existing dust falling device is not provided with a wood chip prevention mechanism, so that the wood chips directly enter the dust falling device, and the use of the dust falling device is influenced. A saw blade is fixedly connected to one side of the chain saw body, a saw chain is rotationally connected to the saw blade, a dust suction hood is fixedly connected to the lower end of the chain saw body, a blocking net is fixedly connected to one side of an air suction opening of the dust suction hood, a fixing frame is arranged on the edge of the blocking net, and a connecting pipe is arranged in the middle of the other side of the dust suction hood. A telescopic hose is connected to one side of the connecting pipe, and a dust suction device is arranged on the other side of the telescopic hose.

A power tool includes a housing, a driving device, a cutting device and an oil storage device. The driving device, the cutting device and the oil storage device are all mounted in the housing. The driving device may drive the cutting device to work, and the oil storage device provides lubricating oil to the cutting device. The oil storage device includes an oil reservoir and an oil pump, the oil reservoir is connected with the oil pump through a first oil pipe, and a filtering structure is arranged between the first oil pipe and the oil reservoir to filter the lubricating oil entering the oil pump from the oil reservoir. The oil reservoir provides lubricating oil to the cutting device through the oil pump. The oil storage device of the disclosure may effectively improve a clogging problem of the oil pump and improve a duration life of the power tool.

A handheld power tool (1) is disclosed comprising an actuator mechanism (4) which comprises a first mechanism member (11) comprising a button unit (5) and a guide unit (7), and a second mechanism member (12) attached to a tool body (3). The first mechanism member (11) is pivotally attached to the second mechanism member (12) between a deactivating position and an activating position. The first and second mechanism members (11, 12) form a locking mechanism (6) configured to allow the first mechanism member (11) to pivot from the deactivating position to the activating position when the button unit (5) is in an unlocking position. The button unit (5) is slidably arranged relative to the guide unit (7) from a locking position towards the unlocking position in a first direction (d1) pointing towards the tool body (3).

A remote-controlled chainsaw comprises fixing means e.g., a chain 2, attached to a triangular baseplate for fixing to a tree 1. One or more supports 3 are connected to the chain 2 and a pair of rails 4 is mounted on the supports 3 with a control platform 7 movably mounted on the rails 4. There may be a separate chain tensioner. A chainsaw holder 5a is mounted on the control platform 7 and a chainsaw 5 is connected to the holder, with a chainsaw blade 6 extending therefrom. A motor moves the control platform 7 relative to the pair of rails 4 to effect cutting the tree. Following an initial partial cut, the rails may be manually or motor tilted about a horizontal axis 10 to enable an inclined cut to form a notch or birdmouth in the tree stem. The saw may then be rotated and moved on the rails to the other side of the tree to perform a felling cut. Allows remote cutting to improve safety when felling diseased trees e.g., with chalara, ash-dieback without the need for heavy equipment.

The utility model discloses a brushless electric saw capable of working in a narrow space. The brushless electric saw comprises a handle, a motor and a guide plate, a side frame is arranged at one end of the handle, and a protective shell is arranged on the outer side of the side frame. The motor is arranged on one side of the side frame; the output end of the motor is connected with a rotating shaft; the electric saw is compact in overall structure and can flexibly work in a narrow and narrow space where conventional electric saws are difficult to apply, a user can easily reach and conduct cutting tasks by means of the small and flexible figure of the electric saw no matter in operation scenes such as narrow pipeline gaps and corners, the use range of the electric saw is greatly expanded, and the electric saw is suitable for popularization and application. The working efficiency is improved, and construction obstacles caused by space limitation are reduced; according to the brushless electric saw, automatic and precise lubrication is achieved through the built-in lubricating mechanism, the brushless electric saw can replenish lubricating oil for a cutting chain and a gear piece in time according to requirements in the working process, the working continuity is improved, and the working efficiency is improved.

The utility model discloses an electric chain saw which comprises a machine shell, a gear box, an oil pump, an oil tank, an oil inlet pipe, a guide plate and an oil outlet pipe. The gear box is installed in the machine shell and comprises a gear box shell, an installation table is arranged on the gear box shell and comprises a planar first installation part, and an included angle is formed between the plane where the first installation part is located and the plane where the top wall of the gear box shell is located; the oil pump is fixedly mounted on the mounting table, penetrates through the first mounting part, is at least partially inserted into the gearbox and is in linkage mounting with the gearbox; the oil tank is installed in the machine shell. The oil inlet pipe communicates with the oil tank; the guide plate is installed on the machine shell. The oil outlet pipe communicates with the oil pump and the guide plate. According to the invention, the probability of oil leakage can be reduced.

Power tool with: a main body section comprising: a battery compartment configured to form a gap open upward with respect to a battery in a state where the battery is inserted from above, and a cover attached to the battery compartment so as to cover the battery from above, the cover being configured to expose the gap to the outside when attached to the battery compartment; and an electric working section provided at a front side of the main body section and configured to operate with power supplied from the battery.