620results about "Chain saws" patented technology

Systems and methods which provide control of lubricant delivery with respect to chainsaws using a lubricant flow shutoff valve controlled in correspondence to an operational state of the chainsaw. A chainsaw lubricant delivery control system includes a lubricant flow shutoff valve and a chainsaw operation-based valve controller operable cooperatively to provide control of lubricant delivery to the cutting chain and guide bar assembly of a chainsaw. The chainsaw operation-based valve controller is coupled to an operationally active element of the chainsaw wherein the chainsaw operation-based valve controller may control the lubricant flow shutoff valve between an open position and a closed position responsive to detecting a particular state of the operationally active element corresponding to an operational state of the chainsaw.

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.

A chainsaw including: a housing; a motor supported by the housing, the motor comprising an output shaft; a guide bar, the guide bar defining a cutting track; a cutting implement guided by the cutting track and driven about the guide bar by rotation of the output shaft; a tension adjusting system for adjusting tension in the cutting implement by displacing the guide bar towards or away from the housing, the tension adjusting system comprising a user actuatable interface accessible from an exterior of the housing, wherein the user actuatable interface is a bistable movable between a first position and a second position, wherein the tension adjusting system tensions the cutting implement to a cutting tension when the user actuatable interface is in the first position, and wherein the tension adjusting system tensions the cutting implement to a relaxed tension when the user actuatable interface is in the second position.

A chainsaw includes a housing and a cutting assembly. The housing includes a central housing, a motor cover arranged obliquely upward at a tail part of the central housing, and a handle housing arranged obliquely downward at the tail part of the central housing, and a hollow structure is arranged between the motor cover and the handle housing. The cutting assembly is arranged on a front side of the central housing, an axis of the cutting assembly is intersected with an axis of the handle housing, and a first intersection thereof is located inside the handle housing.

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.

A chainsaw includes a housing formed with or connected to at least a handle for a user to hold; a guide plate configured to support and guide a chain, where an end of the guide plate is supported by the housing; a power supply device including at least one battery pack detachably connected to the housing to provide electrical energy for the chainsaw; and a display device mounted to the housing and configured to display a current state of the chainsaw. The display device has a display plane, and the angle β between the display plane and a bottom plane perpendicular to a guide plate plane is greater than or equal to 25° and less than or equal to 75°.

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.

A method is provided for operating a hand-guided processing device that has a rotating and / or circulating cutting tool, an electric motor drive system wherein the electric motor drive system is configured for generating a torque for driving the cutting tool, and a user-operable control element. The method automatically monitors whether a blocking criterion is fulfilled, wherein the blocking criterion is characteristic of a blocking of the cutting tool, and if the blocking criterion is fulfilled and the control element operated, automatically lowers the torque generated by the electric motor drive system, and temporally thereafter, automatically increases the torque generated by the electric motor drive system.

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.

Herein a hand-held electrically powered device (2) is disclosed. The hand-held device comprises a housing (4)), an electric motor (14), and a fan (18). The hand-held device (2) comprises a wall member (20) arranged inside the housing (4) and forming at least part of a wall (22) which delimits a first compartment (24) from a second compartment (26) within the housing (4). The wall member (20) forms an individual element. The wall member (20) is coupled to first and second housing elements. The wall member (20) comprises a through opening (42). The electric motor (14) extends from the first compartment (24) to the second compartment (26) via the through opening (42). The electric motor (14) is supported by the wall member (20).

An electric work machine is driven appropriately. An electric work machine includes a motor including a stator, a rotor rotatable relative to the stator, and a rotor shaft fixed to the rotor, an output unit drivable by the rotor shaft, a motor case accommodating the stator and the rotor, a magnet located inside the motor case and rotatable by the rotor, and a magnetic sensor located inside the motor case to detect the magnet.

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 utility model relates to a full hydraulic control multifunctional firewood processor which comprises a main machine frame, a feeding conveying mechanism is arranged at the front end of the main machine frame, a locking mechanism is arranged above the feeding conveying mechanism, the locking mechanism comprises a locking piece, a locking hydraulic cylinder and a locking rotating shaft, the locking piece is fixedly arranged on the locking rotating shaft, and the locking hydraulic cylinder is arranged on the locking rotating shaft. The locking hydraulic cylinder drives the locking rotating shaft to rotate back and forth; a cutting mechanism is arranged behind the feeding conveying mechanism and comprises a cutting saw, a cutting hydraulic cylinder and a cutting rotating shaft, the cutting saw is fixedly arranged on the cutting rotating shaft, and the cutting hydraulic cylinder drives the cutting rotating shaft to rotate in a reciprocating mode; a sliding way is arranged below the cutting mechanism, a wood splitting blade is arranged in the sliding way, a wood splitting hydraulic cylinder is arranged at the front end of the sliding way and can push wood to abut against the wood splitting blade, and a discharging and conveying mechanism is arranged behind the sliding way. The automatic wood sawing and splitting machine integrates automatic feeding, hydraulic locking and fixing, hydraulic wood sawing, hydraulic wood splitting and automatic discharging, and is high in automation degree, strong in power output and high in working efficiency.

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.

The invention discloses a fully automatic wood sawing equipment, including a wood feeding device and an automatic wood sawing device. The transmission frame of the wood feeding device has a transmission belt, a clamping cylinder is fixed on a conveyor mounting plate, a piston rod of the clamping cylinder is connected to the clamping plate, an infrared sensor is arranged in the transmission frame, and a controller is arranged in a control cabinet in the wood feeding device; the automatic wood sawing device includes a fixed support platform, a liftable wood saw working platform is arranged on the fixed support platform, a wood saw is placed on the wood saw working platform, a temperature sensor and a speed sensor are installed on the wood saw, a wood saw grip clamping tool, an automatic start wood saw tool, and a wood saw throttle loading tool are arranged on the wood saw working platform, and an industrial computer, a fuel storage tank, a chain plate oil storage tank, and a fuel consumption meter are also arranged on the fixed support platform. The invention can effectively reduce labor intensity and realize automatic wood sawing operation. At the same time, the parameters of the wood saw engine can be monitored in real time during the operation.

To provide a work machine, which is configured to prevent water from intruding into a motor storage part.SOLUTION: A work machine comprises a main body part having a motor storage part and a working part mounted on the main body part. The main body part comprises a fan stored in the motor storage part, and a motor stored in the motor storage part. The motor storage part comprises a wall part positioned closer to a first side than the motor in an axial direction of the motor to define the motor storage part, and a first air-intake opening part provided in the wall part. The wall part comprises: a diameter reduction part whose diameter gradually reduces as going from a second side toward a first side in the axial direction; a bell-mouth part provided at an end part at a first side of the diameter reduction part, which defines the first air-intake opening part; and water-proof groove part provided between the end part at the first side of the diameter reduction part and the bell-mouth part or in the bell-mouth part, in the axial direction, which is dented from an outer peripheral surface of the wall part.SELECTED DRAWING: Figure 8

The present invention provides a hand-held electric tool comprising a housing and an operating component. The housing has a main body section and a grip section extending from the rear side of the main body section, and the front end of the main body section is provided with a mounting interface. The operating component is mounted at the mounting interface of the housing and protrudes from the housing. A chip removal hole is formed in the bottom wall of the main body section of the housing, and a protective portion that extends downwards at least partially is provided at the bottom end at the position where the main body section joins the grip section. The bottom of a hand-held electric tool of the present invention is substantially closed, except for being provided with a chip removal hole, which allows removal of chips while preventing a user's hand from being inadvertently extended into the housing and contacting a component operating at a high speed. Moreover, chips removed through the chip removal hole are blocked by the protective portion, without reaching the grip section, which offers considerable advantages in terms of safety and hygiene.

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.