81results about "Motor driven pruning saws" patented technology

A hand-held drive apparatus comprises an apparatus main body including a pruner and a handle rotatably connected to the apparatus main body and including a rotation lock mechanism and a drive operation mechanism. The rotation lock mechanism includes a rotation lock lever movable to a rotation prevention position where the handle is prevented from rotating, and to a rotation allowance position where the handle is allowed to rotate. The drive operation mechanism includes a switch configured to control activation of the pruner and a throttle lever movable to a contact position where the throttle lever pushes the switch and to a non-contact position where the throttle lever is separated from the switch. The throttle lever contacts the rotation lock lever at the rotation allowance position to maintain the non-contact position, and is, when the rotation lock lever is at the rotation prevention position, allowed to move to the contact position.

The invention relates to a process for manufacturing a cutting tool for a vegetation cutting machine, such as a brush cutter or an edge trimmer, comprising the following steps: (a) producing by an injection molding process at a first temperature a preform (200) made of a polyamide mixture comprising at least one homopolymer and at least one copolymer; (b) stamping the preform at a second temperature lower than the first temperature so as to cause polymer chains of the polyamide mixture to extend according to at least two different directions, thereby forming a planar piece (201), (c) cutting the planar piece (201) to define at least one cutting edge of the cutting tool (2).

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.

The present invention relates to a hinge (10) for a hand tool, in particular for a tree trimmer or the like. The hinge (10) comprises a first hinge part (12) including a first half-shell (16) and a second half-shell (18), a second hinge part (14) pivotable relative to the first hinge part (12) around a swivel axis (54) of the hinge (10) and a rotary knob (20) arranged rotatable at the first hinge part (12) and rotatable around the swivel axis (54). A push element (22) is linearly moveable along the swivel axis (54) inside the first hinge part (12). The push element (22) is pressed or pressable against a contact surface (42) of the second hinge part (14) by rotating the rotary knob (20), so that the hinge (10) is locked or at least rough-running.

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 field-configurable apparatus for different aerial applications is provided. The field-configurable apparatus attaches to an aerial boom on a mobile carrier. The apparatus can perform rapid semi-precise cutting of vegetation. Additionally, the apparatus can perform more precise trimming of one or more areas (e.g., limbs) and optionally use a limb clamp to prevent cut limbs / vegetation from arbitrarily falling on objects below the cutting area. Still further, the apparatus can have a grapple or similar device attached to the end of the boom for use in relocating debris or for loading debris. Other industrial applications are also possible (e.g., commercial water blasting, deicing of planes, etc.). In each configuration, the apparatus comprises one or more rotatable or pivoting couplings to allow for rotation about one or more axis and therefore allow precise manipulation of an aerial tool assembly from an operator in the vehicle or on the ground.

The invention relates to a product used in the agricultural sector for pruning, cutting, and shaking operations. This product allows multiple tasks to be performed with a single machine by using interchangeable saw and shaking heads attached to a fixed body.

A garden multitool, which relates to a power tool, including a working assembly, the working assembly having an electric motor and a working head, the electric motor actuating the working head to swing back and forth on a working plane; the garden multitool further includes a shaft and a handle assembly, the working assembly being attached to a front end of the shaft, the handle assembly being attached to a rear end of the shaft, a lengthwise direction of the shaft being parallel to the working plane. By appropriately improving the structure of the garden multitool, the functional utilities of the swing power tool are reasonably extended, which helps to enhance user experience.

A power tool includes an elongated shaft forming a handle and a tool head located at one end of the handle. The tool head includes a working element and a driven shaft configured to drive the working element. A powerhead located at an opposite end of the handle and includes an input shaft. A driveshaft is coupled between the tool head and the powerhead. The driveshaft has a first driveshaft portion rotatably driven by the input shaft and a second driveshaft portion coupled to the first driveshaft portion and the driven shaft. The second driveshaft portion is driven by the first driveshaft portion to transfer torque from the powerhead to the working element. One of the first driveshaft portion or the second driveshaft portion is constructed of a non-conductive material or both of the first driveshaft portion and the second driveshaft portion are constructed of a non-conductive material.

This invention relates to the field of landscaping and landscaping pruning, specifically to a landscaping and landscaping equipment for environmental art design. It includes two mobile carts, each with a lifting base mounted on top. A side trimming box is mounted on top of the lifting base, a lifting trimming box is mounted behind the side trimming box, a horizontal trimming box is mounted on top of the lifting trimming box, and an obstacle-avoiding trimming box is mounted in front of the horizontal trimming box. The two obstacle-avoiding trimming boxes abut against each other. The sides of the side trimming box, lifting trimming box, horizontal trimming box, and obstacle-avoiding trimming box facing the middle of the two lifting bases are all open and equipped with chainsaws. Obstacle-avoiding components are mounted on the front sides of the two obstacle-avoiding trimming boxes and the rear sides of the two horizontal trimming boxes. An elastic adjustment component connected to the obstacle-avoiding components is mounted on the horizontal trimming box. Based on the cooperation between the side trimming box, lifting trimming box, horizontal trimming box, and obstacle-avoiding trimming box, this invention allows for the completion of pruning work on a green belt with only one movement along the green belt.

The invention discloses a bamboo forest pole climbing trimming robot which comprises a shell which is approximately of a U-shaped structure and is provided with first mounting parts located on the two sides and a second mounting part located in the middle. The driving assembly comprises a left arm driven wheel module and a right arm driven wheel module which are respectively arranged on the two first mounting parts, and a main driving wheel module positioned on the second mounting part; the holder module is arranged on the upper surface of the shell and is provided with a first driving motor and a second driving motor; the electric saw module is arranged on the holder module; the first driving motor drives the electric saw module to longitudinally turn over, and the second driving motor drives the electric saw module to horizontally rotate; the robot can automatically climb bamboos, detect side branches in the climbing process in real time, automatically trim the side branches, saw bamboo branches and bamboo tips at the top after climbing to a specific height, and perform air positioning and segmentation cutting on bamboos.

There is provided an operating lever mechanism including: a trigger lever to actuate an electric working device; a slide member provided to be able to slide in a direction in which the handle extends, the slide member being configured to lock the trigger lever when the slide member is not operated, and to unlock the trigger lever when the slide member is slid; and a grip lever operated by gripping the handle by one hand, the grip lever being configured not to allow the slide member to slide when the grip lever is not operated, and to allow the slide member to slide when the grip lever is operated. The slide member is slid while the handle is gripped by the one hand and the grip lever is operated, and therefore the trigger lever is unlocked.

A pruner comprising a pruner body, a cutting system, an electric motor (4) adapted to provide driving power for the cutting system, wherein rotation of the electric motor (4) in a first direction is adapted to provide a cutting action, and a control system (5) for controlling the electric motor (4) The pruner further com- prising a blade stuck detection system (9) adapted to detect a blade stuck situation in which the cutting system is not able to reach the closed position, and the control system (5), as a response to detection of the blade stuck situation, is adapted in a recut operation to rotate the electric motor (4) in a second direction opposite the first direction, and then to rotate the electric motor (4) in the first direction to ac- tuate the cutting system towards the closed position.

To provide a technology which enables improvement of users' convenience in a cutting tool provided with a hand guard.SOLUTION: A cutting tool disclosed by the specification includes: a cutting unit; a prime mover configured to drive the cutting unit; a housing including a housing body for holding the cutting unit and housing the prime mover, and a grip which extends from the housing body and is configured to be grasped by a user's hand; and a hand guard attached to the housing, configured to protect fingers of the user's hand grasping the grip, and being more deformable than the housing.SELECTED DRAWING: Figure 1

The application relates to the technical field of power transmission line maintenance equipment, in particular to an overhead power transmission line live-line tree cleaning cutter which comprises a handheld part and a supporting rod connected in sequence, an upper clamping part and a lower clamping part are fixedly arranged at the top of the supporting rod; a lower supporting plate is fixedly arranged at the bottom of the lower clamping part, an inner plate which is in sliding connection with an outer plate is arranged above the lower supporting plate, an outer plate spring is fixedly arranged between the outer plate and the lower supporting part; the middle of the bottom of the inner plate is fixedly connected with a locking rope; the locking rope is connected with a winding mechanism; the upper clamping part comprises an upper supporting plate, a saw blade group is slidingly arranged below the upper supporting plate, the two ends of the saw blade group are connected with a first steel wire rope, a second steel wire rope and a gear transmission belt, the gear transmission belt is in transmission connection with a motor which is fixedly installed on the supporting rod; all the electric control components of the application are arranged below, the parts for processing tree branches are all operated in a non-electrified mode and will not be interfered by the strong magnetic field of the overhead power transmission line.

The invention provides a high branch pruning device for municipal landscaping, and relates to the technical field of pruning devices.The high branch pruning device comprises a transmission assembly and a pruning mechanism, moving wheels are inserted into the bottom of the transmission assembly, the bottoms of the moving wheels are used for being pressed on the ground, and the pruning mechanism is inserted into the top end of the transmission assembly and comprises a lifting rod, a motor and a saw blade; a lifting rod is arranged on the control assembly, the bottom of the lifting rod is embedded into the inner side of the transmission assembly, the top end of the lifting rod is in threaded connection with a motor, an output shaft of the motor is in threaded connection with a saw blade, and the saw blade is used for pruning high branches of trees. And the pruning process of the high branches of the tree is realized in the process, so that the pruning length can be ensured to be more balanced and uniform by taking the trunk as the center of a circle. In the whole operation process, the tree trunk does not need to be excessively clamped, and the problem of damage to the tree trunk area is also reduced.

This invention relates to a handheld processing device with operating elements and a display area, configured for use in a working position rotated at a tilt angle (α) of at least 45° around the device's longitudinal axis (L). The handheld processing device has a housing (1), a grip operating unit (2), and a display area (6) disposed on the outer side (5) of the housing (1). The grip operating unit includes a handle (3) extending in a main direction component parallel to the longitudinal axis (L) of the device, and a finger-operable operating element (4) within the finger reach of the handle (3). The display area has at least one optical display element (71). According to the invention, the display area (6) is arranged offset relative to the operating element (4) in the circumferential direction (U) of the housing about the housing's longitudinal axis (L) and extends in the circumferential direction (U) beyond the housing edge (8) and / or extends in a curved or bent direction. The invention also relates to its use, for example, as a motor saw.

Provided are a chainsaw and a handheld power tool. The handheld power tool includes a motor; a handle, where a first switch that can control the starting and stopping of the motor is disposed on the handle; an output assembly; and an adjustment device including a telescopic rod assembly, where the length of the adjustment device changes so that the handheld power tool has at least two working states, that is, a first working state and a second working state. The distance between the frontmost side of the handheld power tool and the rearmost side of the first switch is defined as the effective length of the handheld power tool; where when the handheld power tool is in the first working state, the handheld power tool has a first effective length T1; and when the handheld power tool is in the second working state, the handheld power tool has a second effective length T2; where the first effective length T1 is less than or equal to 1 m, and the second effective length T2 is greater than the first effective length T1. The chainsaw and the handheld power tool are convenient, lightweight, and flexible while satisfying the requirements of the user for different trimming heights.

A cutting tool includes: an electric motor with a stator having multiple windings and a rotor; a driver circuit electrically connected to the electric motor to drive the electric motor to run; and a controller configured to estimate the angular position of the rotor based on a working parameter of the electric motor and output a drive signal to the driver circuit based on the angular position of the rotor to control the rotation of the electric motor. At a start stage, the controller is configured to: when an abnormal start of the electric motor is detected, output a first control instruction to control the electric motor to restart, where the first control instruction includes at least the instruction to input a high-frequency signal into the driver circuit so as to acquire the angular position of the rotor.

The application discloses a fruit tree three-dimensional layered pruning machine, which comprises a mechanical arm tilting assembly, a mechanical arm lifting assembly, a pruning mechanical arm assembly and a plurality of cutter disc assemblies, the mechanical arm lifting assembly is fixed on the mechanical arm tilting assembly, the pruning mechanical arm assembly is fixed on the mechanical arm lifting assembly, and the plurality of cutter disc assemblies are all installed on the pruning mechanical arm assembly and are spacedly distributed from top to bottom. The height, the tilting angle and the cutter disc assembly spacing of the application can be adjusted, continuous, fast three-dimensional layered pruning of fruit trees is realized, and the applicability is improved.

The invention relates to the technical field of electric tool control, in particular to an electric chain saw performance regulation and control method, system and equipment based on cutting temperature, and the method comprises the steps: setting a plurality of grades of temperature thresholds and a plurality of grades of cutting performance corresponding to the temperature thresholds in sequence from low to high, a plurality of grades of matching relations that the cutting performance is reduced along with the rise of the temperature threshold are formed; the cutting temperature of the electric chain saw is detected in real time through a temperature sensor, and the cutting temperature is compared with a temperature threshold value; and when it is detected that the cutting temperature is larger than or equal to the temperature threshold value of any gear, the electric chain saw is reduced to the corresponding cutting performance based on the matching relation of the gear to conduct cutting operation. Through the multi-level stepped matching relation between the temperature threshold value and the cutting performance, the effect that the cutting performance is reduced step by step when the cutting temperature of the electric chain saw rises is achieved, the shutdown waiting time is shortened, and the cutting efficiency is improved.

To provide an electric working machine improved in workability at higher output.SOLUTION: According to one aspect of the present invention, there is provided an electric working machine for cutting a work target, the electric working machine including a working unit and a main body, the working unit being configured to cut the work target, the main body including a housing, a flow passage forming portion, a motor, and a control unit, the motor being configured to generate rotational power for driving the working unit, the control unit being configured to electrically control rotation of the motor, the flow passage forming portion forming an air flow passage including a first air flow passage and a second air flow passage, the first air passage communicates with an outside of the housing and is configured to allow outside air to flow to the motor via the control unit, and the second air passage communicates with the outside of the housing and is configured to allow outside air to flow directly to the motor.SELECTED DRAWING: Figure 1

The invention discloses a high-altitude branch pruning device, which belongs to the technical field of gardening tools, and comprises a pruning head assembly integrated with a first knife edge, a second knife edge and a third knife edge, a shell internally provided with a dual-motor driving mechanism, and a detachable extension rod assembly. The first knife edge adopts a reciprocating saw blade for cutting large branches, the second knife edge is an arc-shaped knife edge for cutting small branches, and the third knife edge adopts a horizontal reciprocating saw blade for cutting medium branches. The extension rod assembly can achieve high-altitude operation, a micro camera and a multimedia clamping jaw are arranged on the extension rod assembly, a real-time observation system is formed, and an operator can clearly observe on the ground and accurately control pruning. Multiple cutting functions are integrated, operation is labor-saving, safety and reliability are achieved, and the problems that in the prior art, a tool is single in function, poor in high-altitude operation precision and high in risk are solved.

The invention discloses a cotton topping device. Relates to the technical field of cotton topping equipment. Comprising a frame, and walking wheels are arranged at one end of the frame; the fixed end of the lifting mechanism is mounted on the frame, and a topping platform is fixed to the telescopic end of the lifting mechanism; the topping mechanism comprises a driving part mounted on the topping platform and a topping shear driven by the driving part, and the topping shear extends towards one side of the topping platform; the control system is used for controlling the lifting of the lifting mechanism and controlling the driving part to drive the cutting action of the topping shears; through the lifting mechanism, accurate and flexible adjustment of the topping height is achieved, the cotton topping machine adapts to different cotton plant heights, missing or excessive topping of the topping machine with the fixed height is reduced, the layout that the topping shears extend towards one side of the topping platform is large in length range, and the cotton topping machine is suitable for operation in cotton fields with different plant row configurations; lifting and shearing are integrally controlled through a control system, operation is easy and convenient, and the topping machine is adjustable in height, compact in structure and centralized in control.

A method for pruning bamboo with a drone, comprising the following steps: step 1: the first anti-swing bifurcation and the second anti-swing bifurcation of the bamboo fixing and cutting device are opened to the maximum under the action of the first anti-swing bifurcation rotating motor and the second anti-swing bifurcation rotating motor; step 2: the first bamboo fixing half ring and the second bamboo fixing half ring of the bamboo fixing and cutting device are opened to the maximum; step 3: the saw disc rotates under the driving of the saw disc rotating motor; step 4: the saw disc fixing U-shaped plate moving motor rotates with the second gear, and moves forward to the set position in cooperation with the gear groove on the inner wall of the middle shell; step 5: the electric push rod telescopic rod starts to move forward in cooperation with the gear groove on the inner wall of the electric push rod shell; step 6: the flexibility of the rotary swing device is used to prune the branches; step 7: after the bamboo is pruned, the rotary swing device and the bamboo fixing and cutting device move back a distance.

The present application relates to a kind of electric tools, including shell and locking assembly, shell is provided with battery pack installation part, battery pack installation part is detachably connected with battery pack, battery pack is configured to provide electric energy for electric tool;Locking assembly includes lock tongue, lock tongue receiving portion and trigger piece.Lock tongue and trigger piece are movably arranged on one of shell, battery pack, and lock tongue receiving portion is arranged on the other one of shell, battery pack.Lock tongue is engaged with lock tongue receiving portion, so that battery pack is locked relative to shell;Lock tongue and lock tongue receiving portion are disengaged, so that battery pack is unlocked relative to shell.Electric tool is configured to be triggered by at least two different actions of trigger piece generated by external force applied on trigger piece, to directly or indirectly drive lock tongue relative to lock tongue receiving portion to move, to achieve battery pack to be unlocked relative to shell.The number of trigger piece is configured to be at least two.

The present application relates to a garden tool. The garden tool comprises a housing; a working assembly connected to the housing; a drive assembly configured to drive the working assembly; a gear assembly connected between the working assembly and the drive assembly; and an oil pump assembly configured to lubricate the working assembly.The working assembly comprises a guide plate extending along a first axis, and the oil pump assembly comprises an oil pump connected to the drive assembly or the gear assembly; wherein the garden tool further comprises a first plane parallel to the guide plate; a projection of the drive assembly onto the first plane includes a first center point, a projection of the gear assembly onto the first plane includes a second center point, and a projection of the oil pump onto the first plane includes a third center point; wherein the first center point and the second center point are connected to define a first connecting line; the second center point and the third center point are connected to define a second connecting line; and any included angle between the first connecting line and the second connecting line is obtuse.The oil pump assembly, the gearbox assembly, and the drive assembly are located in a central area to ensure the compactness of the entire machine structure, resulting in a miniaturized and lightweight chainsaw.

The application discloses an electric tool, comprising: a functional part for realizing the function of the electric tool; a motor for driving the functional part; a driving circuit electrically connected with the motor to drive the motor; a first control module for outputting a first control signal to the driving circuit; the first control module has a first working state and a first failure state, the first control module outputs a first working signal when being in the first working state, and the first control module outputs a first failure signal when being in the first failure state; a second control module connected with the first control module to receive the first working signal or the first failure signal from the first control module; wherein the second control module outputs a second control signal to stop the motor when receiving the first failure signal from the first control module. The electric tool has high safety.

A garden multitool, which relates to a power tool, including a working assembly, the working assembly having an electric motor and a working head, the electric motor actuating the working head to swing back and forth on a working plane; the garden multitool further includes a shaft and a handle assembly, the working assembly being attached to a front end of the shaft, the handle assembly being attached to a rear end of the shaft, a lengthwise direction of the shaft being parallel to the working plane. By appropriately improving the structure of the garden multitool, the functional utilities of the swing power tool are reasonably extended, which helps to enhance user experience.