5581results about "Cutters" patented technology

The present invention relates to cutting tools, in particular, to control systems for cutters such as vegetation cutters, especially hedge cutters or trimmers (10). Hedge cutters (10) frequently suffer in use from a problem of blocked cutting blades when they encounter a twig or branch whose size or density exceeds the capacity of the blades. We describe a vegetation cutting apparatus (10) having a plurality of cutting blades (11,12), at least one of which blades (11,12) is drivable by an electric motor. At least one driven blade (11,12) is movable between two predefined points of maximum travel. The apparatus (10) includes a control mechanism which causes a change of direction in the movement of the at least one movable blade at a point intermediate the points of maximum travel in response to an event sensed by the control mechanism.

An elongated pole pruner for cutting and trimming trees, bushes and the like having three separable sections, that when assembled, form an extended length pruner. The pole pruner includes a first section containing a handle and battery pack, a second extension section, and a third section that contains the purner itself. Each of the sections contains an electrical conductor that is attached to corresponding conductor in an adjacent pole sections via a male plug and female receptacle. In this way, the battery pack in the first section of the pole is able to deliver power through the second section to the pruner in the third section.

A self-propelled forage harvester includes an overload clutch inserted into the driveline of a crop conveying element of crop pick-up arrangement of the harvesting machine. The overload clutch generates acoustic and/or mechanical vibrations when a defined torque is exceeded, and a knock sensor is provided for sensing when the overload clutch is operating in an overloaded condition. The knock sensor sends a signal to a control arrangement including a signal processor which recognizes a vibration pattern representative of an overload, and in response to such a pattern, sends a control signal for shutting off the drive to various driven components of the harvester.

A pair of pruning shears has two bodies pivotally mounted together with a pivot, a spring connected between the bodies, and a lock device arranged near the pivot. The lock device comprises a step hole defined in one of the bodies near the pivot, a locking hole defined in the other body, a latch post moveably mounted in the step hole, a biasing member to support the latch post, and a knob. The knob is rotatably mounted on the body with the step hole. The knob has a bottom abutting the latch post and a cavity defined in the bottom. When the bodies are pushed toward to each other, the step hole will align with the locking hole. The latch post can be pushed to engage with the locking hole by the bottom of the knob. This can provide a secure positioning effect to the latch post. The latch post will not escape from the locking hole when the pruning shears bump with another object.

A hand-held power tool has a device housing having a battery pack compartment. An electric drive motor is arranged in the device housing. An output for driving a working tool is connected to the electric drive motor and arranged in the device housing. A battery pack is arranged in the battery pack compartment and is substantially received completely in the battery pack compartment. At least one grip for guiding the power tool is provided. The device housing has a housing volume and the battery pack compartment has a compartment volume located inside the device housing. A ratio of the housing volume to the compartment volume is approximately 1.5 to maximally io approximately 5.

This innovation provides a hedge shear extendable handle enhanced structure focusing on resolving the operating inconvenience and physical deficiencies such as bending and deformation resulting from the operations of legendary hedge shear. The main structure of the enhancement is a pivot joint formation of an inner and outer tube. The main feature is the H-shape profile structure of the inner tube with a slide way built with an internal diffusion slot and a perforation slot. The perforation slot has a few interleaved positioning fillisters along the slide way. The positioning fillisters in the inner tube will park the sliding block when it shifted upward and matching with the locating block on the top pillar while moving upward. A press button assembles on top of the pillar and remains in an upward position with the sliding block under normal condition with the help of a spring. The main functionality is retaining the convenience of the press button operation while maintaining ruggedness and endurance of the product using such technique.

The invention provides a branch pruning robot for overhead high-voltage transmission line live working. The branch pruning robot comprises a robot working platform, a spindle drive box, a gravity center adjusting device, an operating arm swing joint and a tail end tool, wherein the robot working platform serves as a mobile carrier of the robot and is hung on a wire through a pair of antisymmetric mechanical arms; a longitudinal spindle is arranged in the spindle drive box and can be rotated by 360 degrees; the operating arm swing joint of the robot is fixedly connected with the spindle and driven by a motor to rotate along with the spindle; the operating arm swing joint can drive an operating arm to swing leftwards or rightwards by 30 degrees, and cone-shaped body space with a 60-degree solid angle below the robot can be completely covered in the robot working area; the tail end tool is carried at the tail end of the operating arm and provided with an independent power supply and control system. The branch pruning robot can replace manual operation, is safe, reliable and easy to operate, and improves branch pruning efficiency, and the functions of the robot are expanded.

A hand-held power working machine in which the clipper blades thereof can be easily dismounted for the exchange or grinding thereof in a way that minimizes the possibility of damage to the power transmission device or the clipper blades in the course of such dismounting. Also, conventional integrated type clipper blades can be mounted thereon. The power working machine includes a working portion provided with a pair of clipper blades and a power transmission device for transmitting a reciprocating driving power to the working portion, wherein the power transmission device includes a pair of intermediate reciprocating driving plates which are couplingly interposed between a pair of reciprocating movement-guiding arms, to be driven by a driving rotor, and the pair of clipper blades.

A portable leaf grinding device (PLGD 10) that is used to grind a substance such as a plurality of compacted leaves into a multiplicity of leaf particles. The PLGD (10) consists of a circular cap (12), a cone-shaped hollow structure (84) that is releaseably attached to the cap (12), and a container (102) that is also attached to the cap (12). The circular cap (12) has attached an upper grinding disk (42) having a plurality of downward-extending leaf grinding blades (58). The upper grinding disk (42) interacts with a lower grinding disk (62) which is attached to the structure (84) and which also includes a plurality of upward-extending grinding blades (72) and a plurality of bores (74). When the circular cap (12) is rotated, the blades on the two grinding disks (46,62) interact with each other to produce the multiplicity leaf particles. The leaf particles can be either stored in the container (102) for later use or used immediately as they exit from the structure (84).

A pruning saw includes an elongated sawblade which has a line of cutting teeth. Opposite sides of the blade extending between the line of teeth and the back edge are concave. A thinnest waist between the concave sides is located closer to the line of teeth than to the back where the blade has its maximum height. A front edge of the blade forms a rounded corner where it intersects the back edge.

A portable, hand-operated trimmer has a head module that is removably connected to a power control module. The head module has a power head enclosing an electric motor that is operatively connected to a trimming blade. The power head is selectably settable in a plurality of angular positions with respect to a head support, including a neutral position representing 0 degree rotation, 45 degree flexion and dorsiflexion positions, and 90 degree flexion and dorsiflexion positions. The power head also encloses a stator cartridge that is connected to the housing of the power head by a plurality of fastening members. The head support rotates about the stator cartridge and is engaged by way of a movable engagement pin that is received within a selected recess defined in the stator cartridge. The power head housing and stator cartridge further define molded sockets to receive corresponding pivot arms of the head support. An O-ring is disposed about one of the pivot arms to dampen free rotation. The power control module provides power to the power head through a removable rechargeable battery or through direct connection to conventional household power.

A pill crusher has an arm extending over and along an elongate base, with a pivotal connection between the base and one end of the arm. An upwardly open cylindrical housing on the base has a longitudinal axis perpendicular to the base and a compression spring in the cylindrical housing between a cylindrical anvil member and the base. Interengaged guide formations on the housing and the anvil member at opposite sides of the housing are inclined so as to cause rotational movement of the anvil member relative to the cylindrical housing on displacement of the anvil member along the longitudinal axis against the action of the spring; and a cylindrical pressure member depending from the arm above the cylindrical housing. In use, the rotational movement of the anvil member causes a pill to be both crushed and also simultaneously ground between the pressure and anvil members, which have serrated opposed faces to improve the grinding.

A hand-guided electric device has an electric motor for driving a tool. The electric motor has a motor housing with inlet and outlet for cooling air. A blower wheel is driven by the electric motor and cooling air is conveyed into the motor housing with the blower wheel through the inlet and blown out from the motor housing through the outlet. The device housing has a cooling air inlet chamber and a cooling air outlet chamber. The cooling air enters the inlet chamber through a cooling air inlet port in an exterior housing wall of the device housing and exits from the outlet chamber through a cooling air outlet port in the exterior housing wall. The cooling air inlet and outlet chambers are separated from one another substantially air-tightly by an inner housing wall so that motor housing is the only flow connection between inlet and outlet chambers.

A reversing automatic feed wheel assembly for wood chipper includes an infeed assembly and a rotatable cutting assembly spaced from the infeed assembly. The reversing automatic feed wheel assembly also includes at least one feed wheel disposed between the infeed assembly and the cutting assembly to feed wood material to the cutting assembly. The reversing automatic feed wheel assembly further includes a control system operatively connected to the at least one feed wheel to automatically reverse/stop/restart the infeed of the wood material including a sensor to sense pressure or reduced speed in the wood chipper as a result of an excessive load placed on either one of the cutting assembly and the at least one feed wheel.

A battery operated pill crusher is provided having a motorized, rotating plunger in a portable configuration.

The present invention relates to bispore mushroom cultivating technology, and is especially one kind of bispore mushroom cultivating medium and its application. The cultivating medium consists of grass material 45í½55 wt%, dung material 35í½45 wt%, cake fertilizer 1í½8 wt%, urine 0.5í½1.0 wt%, gypsum powder 0.5í½1.5 wt%, calcium superphosphate 0.8í½1.5 wt%, lime powder 0.2í½1.5 wt%, calcium carbonate 0í½2.0 wt% and dichlorovos 0í½0.5 wt%. The grass material including rice straw, wheat straw, cotton seed husk, corn cob and corn stalk, and the dung material including cow dung, house dung and chicken dung account for at least 90 wt%. The cake fertilizer may be soybean cake, soybean powder, cotton seed cake and/or corn powder. The cultivating medium is used for cultivating bispore mushroom in tall stalk crop field and has biological conversion efficiency over 60 % and bispore mushroom yield over 25 kg/sq m.

A cam mechanism for use in a mowing machine. The cam mechanism is comprised of a spur gear and protruding eccentric cams from the top and bottom surfaces of the spur gear. The cam mechanism is formed from a half blanking press process. The eccentric cams are symmetrically formed around a shaft hole located in the center of the spur gear. Members with a hole equaling that of the eccentric cam and shaft hole point symmetry are then fitted onto the eccentric cam. The members are then capable of reciprocation with a phase differential of 180 degrees of each other. The concave portion of the eccentric cam permits lubricants to be filled in the space facilitating the smooth operation of the cam mechanism.

An apparatus for gripping a tree, the apparatus being attachable to a carrier boom, the apparatus being usable with a cutting device for cutting a portion of the tree, the apparatus comprising: a body, the body being mountable to the carrier boom; a pair of gripper arms mounted to the body, the pair of gripper arms being selectively movable between an open configuration in which the tree is insertable therebetween and a closed configuration in which the pair of gripper arms is able to grip the tree therebetween; and a support arm operatively coupled to the body for supporting the cutting device, the support arm including a cutting device mount for mounting the cutting device thereto, the support arm being configured, sized and operatively coupled to the body in a manner such that the cutting device is rotatable relatively to the pair of gripper arms about three different rotation axes; whereby, when the pair of gripper arms grips the tree, the pair of gripper arms stabilizes the support arm relatively to the tree and allows for the orientation of the cutting device relatively to the tree by the support arm. It is a general object of the present invention to provide a new and improved hydraulic tree pruning and trimming head attachment, hereinafter abbreviated simply as head attachment.

In embodiments of the present invention, a method and system of a reciprocating tree saw power tool may comprise a power base for powering a reciprocating tree saw attachment, the power base configured to power various other functional modules; a mounting plate of the power base for associating the reciprocating tree saw attachment with the power base; and a control module disposed in the power base for controlling the reciprocating tree saw attachment. Other functional modules may include a clamping nailer/stapler attachment, a bulb planting auger attachment, a sickle bar hedge trimmer attachment, an inspection camera attachment, and a vacuum cup bulb changer attachment.

Disclosed are driving circuit and method which are used in an Organic Light Emitting Diode (OLED), and more specifically to a driving circuit of an organic light emitting diode and a driving method thereof which use a thin film transistor (TFT) as an active device. The driving circuit and method can uniformly produce luminance of the light emitting element because the driving current is produced by compensating the unevenness of threshold voltage of the active device. Further, the variance of the threshold voltage V_th due to deterioration of the transistor produced according as the driving circuit of the OLED is utilized for a long time is also compensated, thereby increasing life of the display device which applies the driving circuit of the OLED.

A straw and chaff spreader including a pair of counter-rotating spreader plates having fan-shaped blades attached to the top surface of each spreader plate. The spreader plates being located beneath the straw and chaff chute of a combine. A rear shield is mounted to the combine to the rear of the spreader plates. The shape of the blades and the direction of rotation of the spreader plates being selected to throw the straw and chaff received from the straw and chaff chute against the rear shield to propel the straw and chaff outwardly on either side of the combine.

An agriculture vehicle has a mobile body and an arm. The arm has a first end supported upon the mobile body and a second end movable relative the mobile body. A cutting tool is operatively supported upon the second end of the arm. The cutting tool includes a blade configured for rotation.

A method and apparatus for mechanically thinning crops, particularly those planted in rows. One or more crop thinning units are connected to the back of a tractor or other vehicle. Each of the units has the ability to sense plants and activate an arm which has a blade disposed thereon. An electronic control system enables data from several sensors to be evaluated such that plants may be selectively removed based on pre-established criteria. Sensors differentiate between weeds and plants, and maintain the cutting units above the crop rows.

A mulcher apparatus includes a tractor and a mulcher unit provided to the tractor. The mulcher unit includes a tooth assembly with a holder and a cutter element with a cooperating notch portion and cross bar arrangement. The notch portion can be retrofit to existing holder arrangements. The cutter element may include various features, to enhance cutting efficiency. For example, the cutter elements may include a double-ended structure, angle tab portions at each corner portion, carbide coatings, a pair of tip portions at each end with a space therebetween, and/or a generally H-shaped configuration.

A pruning robot system for grape vines comprises an automatic navigation module, a pruning module and a binocular stereo vision module. The automatic navigation module comprises a tracked truck, a pan-and-tilt camera, a left wheel driver, a right wheel driver, and an industrial personal computer. The pruning module comprises an agricultural mechanical arm and terminal pruning shears, wherein the agricultural mechanical arm is used for mounting the terminal pruning shears and guiding the same to shear branches. The terminal pruning shears are used for pruning branches. The industrial personal computer is used for analyzing and processing image information of the grape vines, extracting coordinate information of pruning points, planning trajectory of the mechanical arm and giving out movement directives to joints. The binocular stereo vision module comprises two industrial cameras, an image acquisition card and the industrial personal computer, wherein the two industrial cameras are used for acquiring image information of the grape vines, and the information is transmitted to the industrial personal computer for image identification and processing through the image acquisition card. By the aid of the pruning robot system, labor intensity can be lowered, and work efficiency can be improved.

It comprises a support (5) associated to a current takeoff (42) from a motor (43) and a cutting mouth (44) comprising two jaws (3a, 3b), at least one of which is a working cutting jaw (3a) rotatably mounted on the said support (5) and connected to the said power takeoff (42) by means of a drive (47) for carrying out the closing-opening operation with respect to the other jaw (3b). The working cutting jaw (3a), which is at least one, is fixed on a power drive part (6a) which can rotate about an axis (7) mounted on the support (5), the said power drive part (6a) includes a lever arm (8a) at the end of which is arranged a sector of conical gear wheel (9a) which interlocks with a conical gear (10) joined to an axis (11) of the said power takeoff (42).

A manually drivable apparatus for comminuting foods. The apparatus includes a substantially rotationally symmetrical vessel configured to receive a material to be cut, a substantially rotationally symmetrical removable cover configured to nonrotatably mount on the vessel, a shaft rotatably mounted centrally along an axis of the vessel, and at least one blade mounted to the shaft and projecting approximately at right angles from the shaft. The apparatus includes a cutting edge provided on the at least one blade on each of a first longitudinal edge and a second longitudinal edge opposite the first longitudinal edge. The apparatus includes a rotatable drive part configured to drive at least the shaft, and includes a gear arranged in the cover and configured to operatively connect the rotatable drive part to the shaft with a transmission ratio that is greater than 1.

A lifting-type hedgerow trimmer comprises a trimming device, a lifting device, a guide walking device, a control device and a power source, wherein the trimming device is used for carrying out trimming operation and is arranged on the lifting device, the lifting device is used for adjusting the height of the trimming device and is arranged on the guide walking device, the guide walking device is used for adjusting walking, walking speed and walking direction of the hedgerow trimmer, the control device is respectively in electric connection with the trimming device, the lifting device and the guide walking device, receives signals sent by a remote controller and controls the trimming device, the lifting device and the guide walking device to run or stop, and the power source is used for supplying electricity to the control device, the trimming device, the lifting device and the guide walking device. The lifting-type hedgerow trimmer can relieve the labor intensity of hedgerow plant trimming, improves work efficiency, reduces the dangerousness in the trimming operation, and realizes multiple-modeling and multi-mode trimming of road green belts and park scenery trees.

A mill comprises a casing having an opening for supply of material to be milled and a rotor rotatably supported in the casing and provided with cutting members (3) for disintegrating action on the material. The cutting members (3) are arranged in a plurality of sets (4a-d) distributed about the periphery of the rotor, and having an axial extent (arrow 33). At least two of the sets (4) have their cutting members (3) mutually displaced in axial direction.

The invention discloses a municipal green belt trimming device. The lower end of a first motor is rotationally connected with a driving shaft. The middle of the driving shaft is fixedly connected with a fourth bevel gear. The bottom of the driving shaft is fixedly connected with a semicircular bevel gear. A fifth bevel gear is fixedly connected with a sleeve shaft which is connected with a driving shaft in a sliding mode. A first bevel gear is fixedly connected with the middle of a bidirectional threaded rod. A boss is arranged on the surface of the driving shaft. A concave groove is formed in the sleeve shaft. One end of the driving shaft is fixedly connected with a third bevel gear which is meshed and connected with a second bevel gear. The second bevel gear is fixedly connected with the driving shaft. According to the device, the bidirectional threaded rod is driven by the bevel gear group and the semicircular bevel gear to rotate forward and backward in a reciprocating mode so as to drive the driven shaft to move leftward and rightward in a reciprocating mode, and the driving shaft drives the driven shaft to rotate when the driven shaft is driven to move leftward and rightward in the reciprocating mode; the device is simple and applicable in structure, the green belt trimming range is greatly enlarged, work efficiency is improved, and labor is reduced.