Abstract: A trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one inwardly extending line receptor channel defining surface irregularities therein for securely gripping the cutting line upon an end portion of the line being inserted in the channel and the spool rotated with respect to the housing. The channel is preferably tapered inwardly to hold different line sizes. To provide uniform winding of the line about the spool, the operative connection between the spool and the housing effects relative reciprocal motion therebetween when the spool is manually rotated relative to the housing.

Abstract: An improved string trimmer head is described. The trimmer head comprises a housing with a spool and spring assembly enclosed within the housing. The trimmer head further comprises a lid connected to the housing and a bump knob with a base and an intermediate member. The base of the bump knob is located inside the housing. The intermediate member extends outside the housing through the lid. The lid comprises an annulus which surrounds the base. The height of the annulus is greater than a maximum compressing distance of the spool when compressed by the bump knob. A segment of the intermediate member remains outside the lid when the spool is compressed. The bump knob further comprises a finger slot with an outer edge and a recessed portion. A bottom side of the outer edge is positioned farther away from the spool than the recessed portion.

Abstract: A hand-held power tool has an electric drive motor having a drive shaft and a tool connected to the drive shaft and rotatably driven by the drive shaft. The drive motor has a control device that has correlated therewith at least a first operating curve and a second operating curve. The control device operates the electric drive motor in idle according to the first operating curve and operates the electric drive motor under load according to the second operating curve. The first operating curve covers the low power range at low speed and the second operating curve covers a large power range at high speed.

Abstract: An improved head for a flexible line trimmer apparatus is provided. The improved head includes a metal tubing that extends through the head and surrounds a cutting line of selected length. The tubing is provided with a flared exit portal increasing the efficiency of the head. The contact surface eliminates the possibility of the cutting line fusing to plastic surfaces due to heating caused by friction. The head is surrounded with an interior perimeter counterweight to store kinetic energy on each end having a parabolic surface of revolution concentric with the axis of the tubing. A replaceable cartridge is provided to increase the ease of maintenance and the useful life of the head.

Abstract: A saw blade (1) includes a base body (2) and a plurality of teeth (3). The base body (2) defines a longitudinal center plane (14). The teeth (3) are designed and arranged to be unset and to be symmetric with respect to the longitudinal center plane (14). The teeth (3) are designed and arranged to form at least one group of teeth (3) on the base body (2). The at least one group of teeth (3) is repeated on the base body (2). The group of teeth (3) includes at least a first tooth (31) and a second tooth (32). The first tooth (31) includes a first cutting edge (101) being designed and arranged such that at least a portion of the first cutting edge (101) is designed to be rounded and to have at least one first radius (181). The second tooth (32) includes a second cutting edge (102) being designed and arranged such that at least a portion of the second cutting edge (102) is designed to be rounded and to have at least one second radius (182). The second radius (182) is different than the first radius (181).

Abstract: The invention pertains to a trimming device with a motor-driven cutting tool that is rotatable about a shaft and with a shell-like reel protector (100), wherein said trimming device can be operated with different cutting tools. In order to achieve a simple adaptation of the reel protector to the respective tool used, the invention proposes that the reel protector (100) includes a first shell (10) that is rigidly connected to the trimming device and a second shell (11) that can be displaced relative to the first shell (10) in the direction (A) of the shaft of the cutting tool.

Abstract: A trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one inwardly extending line receptor channel, preferably formed by a plurality of inwardly tapered walls so as to be polygonal in cross-section. So configured, the channel walls will securely grip the cutting line upon the line being inserted in the channel and wound about the spool. To provide uniform winding of the line, a plurality of cam, cam abutment and sliding surfaces are operatively connected to the housing and spool such that when the spool is manually rotated relative to the housing in the drive direction, the spool is caused to reciprocate axially within the housing evenly distributing the line about the body of the spool.

Abstract: A tool unit for a handheld power tool having an oscillating output unit, having a fastening means (3) for attachment to the output unit, and having a working edge (4) that transitions into a lateral boundary line (7, 8, 12, 13, 16, 17). The working edge (4) is arc-shaped.

Abstract: An improved line trimmer (10) for weed or grass cutting is provided which includes a operating head (16) having a rotatable housing (44) with cutting line outlet openings (68). A replaceable line cartridge (18) having a supply (118) of line (107) is mounted exteriorly of housing (44), and the free ends (120) of the line pass from the cartridge (18), through housing (44), and out the opening (68). Preferably, the cartridge (18) is mounted on an upright tubular drive shaft (42) coupled with housing (44), so that the line (107) may be threaded through the drive shaft (42).

Abstract: A blade assembly for use with a food processor includes a hub configured to be coupled to a drive shaft of the food processor, a first blade rotatably coupled to the hub and configured to rotate with respect to the hub at least up to a predetermined angle with respect to a second blade, which is fixedly coupled to the hub. The first blade is rotatable between a first position in which it is in phase with the second blade for receiving a blade guard protecting both blades, and a second position, in which the first blade is out of phase with the second blade for optimally processing a food item in the food processor, the blade assembly also including a biasing member for returning the first blade to the first position after use.

Abstract: The grass-cutting head (101) has a body (103) forming a housing for at least one spool of cutting line (F1; F2), provided with at least one outlet hole (111) of an end of the cutting line wound on said spool positioned inside the head. For each outlet hole, a guide channel for the cutting line is also provided, extending from the inside of the housing towards the hole and having an inclined trend, gradually moving away from said axis of rotation.

Abstract: A rotary cutter for a mower for mowing grass and the like with a cord of a desired length extending in a radial direction of a cutting head from the cutting head driven for rotation through a drive shaft is described. The rotary cutter includes at least one fastening element for fixing one end of the cord to a cutting head main body. An inner end portion of the cord inserted from a sidewall of the head main body is fastened by the fastening element. The cord is removed and replaced with a new cord when the cord is worn out. The cord fastening element is disposed near a drive shaft coupling shaft tube portion in the cutting head main body. A cord outlet for removing the cord is provided to the drive shaft coupling shaft tube portion side. The inner end portion of the cord extends outside from the cord outlet and along a sidewall of the drive shaft coupling shaft tube portion of the cutting head main body.

Abstract: A vegetation trimmer comprising an elongate main handle to which is connected a motor that rotatably drives a trimmer head located at a distal end of the handle. The trimmer head defines a rotational axis and includes a housing and a spool rotatably received in the housing for carrying at least one coil of flexible trimmer line. The trimmer head further includes structure for enabling trimmer line to be wound through housing and onto the spool in a user-selected clockwise or counterclockwise direction without removing the spool from the housing such that trimmer line is dischargeable from the trimmer head in an appropriate clockwise or counterclockwise direction dictated by the direction of rotation of the vegetation trimmer drive shaft.

Abstract: A medical waste disposal device having a blade that rotates and chops medical waste into chips and other small particles. The blade includes at least one opening with at least one sharpened edge. The blade also has at least one raised portion adjacent to the sharpened edges. The blade cooperates with a cutting plate to chop or scissor the medical waste. The raised portion pushes chopped medical waste away from the blade and the cutting plate.

Abstract: An improved feedout mechanism for the cutting head of a rotary trimmer includes curved surfaces on the top of the lower row of the cam tangs which replace the original flat surfaces of the lower row of cam tangs in the prior art cutting head. Also, the lower surface of each follower tang also has a curved surface which is changed from the original flat design in the prior art. The curved surfaces of the follower tangs and the cam tangs facilitate the line advancement operation and prevents the follower tangs from being hung up with the cam tangs.

Abstract: A rotary flail feeding device for trimming vegetation includes a head for storing flail line and a unitary, removable subassembly comprising a winding post and a line guide ring rotatably mounted on the post. The subassembly is removed from the head to facilitate loading flail line into the cavity and to assure that dual flail lines are properly positioned when the subassembly is repositioned on the head.

Abstract: A rotary shaver including an outer cutter frame (18) provided on a shaver main body (10), an outer cutter (14) that is installed in this outer cutter frame (18) and has ring-shaped thin layer portions (28a, 28b) whose upper surfaces are the shaving surfaces, and an inner cutter (16) that has cutter bodies (38) that rotates and make sliding contact with the lower surface of the thin layer portions of the outer cutter to cut hair that entered hair introduction openings (30a, 30b) formed in the thin layer portions; wherein the hair introduction openings have a slit shape extending in substantially the radial direction of the thin layer portions, and the cutting edge angle (p, q) at the lower end(s) of the side wall surface(s) of the hair introduction openings (30a, 30b) defined by the ribs (32a, 32b) is an acute angle.

Abstract: The cutting element is connectable to a trimmer head of a garden trimmer. The cutting element comprises a body which is pivotable to the trimmer head along a pivoting axis parallel to the axis of rotation of the head. From the body extends one or more flexible arms, wherein an end portion of each arm opposite to the body has a cross-section which is compressed along the direction of the pivoting axis, and an intermediate portion of each arm interposed between said end portion and said body has a cross-section compressed along a direction perpendicular to the pivoting axis.

Abstract: A trimmer head for use with a length of flexible cutting line in a rotary trimmer comprising a housing operatively connected to the trimmer to effect rotation of the head and a spool for carrying the cutting line thereon. The spool is operatively connected to the housing for rotation therewith and defines a line receptor channel having opposed open ends and traversing the spool. The channel is formed by line guide inserts held within the spool body preferably utilizing the shrinkage of the molded spool material about the inserts. The channel can be aligned with the eyelets in the housing skirt such that cutting line can be inserted therethrough and wrapped about the spool upon relative rotation of the spool and housing without having to interrupt the operative connection therebetween. A central portion of the channel is exposed to provide access to the line so that the line can be pulled from the head without having to interrupt the operative connection therebetween.

Abstract: In an embodiment, a spool for a trimmer head has a structure for guiding the trimmer line around a region for a driveshaft. In an embodiment, a component (e.g., a turn knob or a stop) is attached to the spool so that after determining the orientation in which to install the spool, the user is unlikely to install the spool in another orientation, even though the spool is invertible. In an embodiment, the turn knob also includes a structure that allows the turn knob to be used as a tool (e.g., as a wrench or screw driver) that facilitates disassembling the trimmer head.

Abstract: A plant or vegetation cutting device which comprises a rotary cutting head and at least one cutting filament or string extending radially from the head, such that upon rotation of the head, the string is extended by centrifugal force and cuts through the plants or vegetation. The string is profiled in a generally uniform manner along its length and it comprises a main body whose width/height ratio is between about 1.2 and 2. A co-extruded cutting appendage may be joined along the leading edge and/or the trailing edge of the main body.

Abstract: A trimmer head for use with a length of flexible cutting line in a rotary trimmer comprising a housing operatively connected to the trimmer to effect rotation of the head and a spool for carrying the cutting line thereon. The spool is operatively connected to the housing for rotation therewith and defines a line receptor channel having opposed open ends and traversing the spool. The channel can be aligned with the eyelets in the housing skirt such that cutting line can be inserted therethrough and wrapped about the spool upon relative rotation of the spool and housing without having to interrupt the operative connection therebetween. A central portion of the channel intermediary its open ends is exposed to provide access to the portion of line therein so that line wound about the spool can be pulled from the head without having to interrupt the operative connection therebetween.

Abstract: A glass cutter wheel includes a wheel body having a pair of inclined surfaces defining an annular cutting edge therebetween and extending obliquely radially inwardly from the cutting edge to the respective side surfaces of the wheel body. Each inclined surfaces is formed with ground lines that are spaced from the cutting edge by a distance of 2 to 100 ?m. Because the cutting edge penetrates into a glass material by a distance of 3 to 7 ?m without the need to form ribs on the cutting edge, the ground lines serve to form a large number of vertical cracks. This completely prevents discontinuous cutting lines and chipping of the glass material at intersections of cutting lines, and also serves to provide smooth cut surfaces, thereby increasing the breaking strength.

Abstract: An improved trimmer guard (15), for use with a trimmer (16) having a motor (18), a head (19) and a shaft (20), comprising a mounting assembly (23) configured to mount to a trimmer shaft, a frame (24) supported by the mounting assembly and a foldable skirt (25) supported by the frame. The frame and the skirt may be configured and arranged to move from a first folded position (26) to a second expanded position (28). The skirt may comprise a material selected from a group consisting of polyethylene film, woven polypropylene, woven nylon, canvas and neoprene. The support frame may comprise a first arm (29) extending from a mounting assembly and a second arm (30) extending from the mounting assembly and the first and second arms may be pivotally connected to the mounting assembly. The first and second arms may pivot from a folded position that is substantially parallel to the shaft outwardly to an expanded position that is in a plane substantially perpendicular to the shaft.

Abstract: A trimmer head for use in a flexible line rotary trimmer including a housing adapted to be operatively connected to the trimmer to effect rotation of the head and a spool operatively connected to the housing for rotation therewith. The spool defines at least one line radially extending receptor channel formed by a plurality of inwardly tapered walls and is polygonal in cross-section. So configured, the channel walls will securely grip the cutting line upon the line being inserted in the channel and wound about the spool. To provide uniform winding of the line, a plurality of cam, cam abutment and sliding surfaces are operatively connected to the housing and spool such that when the spool is manually rotated relative to the housing in the drive direction, the spool is caused to reciprocate axially within the housing evenly distributing the line about the body of the spool.

Abstract: A bush cutting machine with a tubular operating pole connected to an outlet of an exhaust muffler and doubling as an exhaust passage is provided. Exhaust gases discharged from an engine flow from the exhaust muffler through the operating pole and are then discharged into the air. The substantial capacity of the exhaust muffler is increased by the operating pole, and the exhaust noise of the engine is reduced.

Abstract: A substantially circular slicer knife is provided having an interior base portion made of a first material and an outer edge portion made of a second material. The outer edge portion is metallurgically bonded to the interior base portion.

Abstract: A cutting blade for a motor-driven implement is provided. The cutting blade has a main body having a central fastening opening and blade sections that extend approximately radially from the main body. The blade sections have edges that extend in a radial direction and form cutting edges. Each blade section is provided with at least one bead-like embossment having a longitudinal axis that extends at an angle of between 0 and 45° relative to a longitudinal direction of the blade section.

Abstract: An improved line trimmer (10) for weed or grass cutting is provided which includes a operating head (16) having a rotatable housing (44) with cutting line outlet openings (68). A replaceable line cartridge (18) having a supply (118) of line (107) is mounted exteriorly of housing (44), and the free ends (120) of the line pass from the cartridge (18), through housing (44), and out the opening (68). Preferably, the cartridge (18) is mounted on an upright tubular drive shaft (42) coupled with housing (44), so that the line (107) may be threaded through the drive shaft (42).

Abstract: A cutting line for brush-cutting, edge-trimming and similar has a generally circular cross-section and, on its periphery, has a plurality of notches spaced apart by a distance of between 12 and 19 mm approximately and aligned along at least one direction parallel to an axis of the line, the length of the notches, measured along the line, being substantially shorter than the spacing distance. The cutting line permits a reduction in the operating noise of vegetation cutting devices such as edge-trimmers, brush-cutters, etc.

Abstract: A substantially circular slicer knife is provided having an interior base portion made of a first material and an outer edge portion made of a second material. The outer edge portion is metallurgically bonded to the interior base portion.

Abstract: A vegetation cutting machine has a tubular operation rod, a motor mounted to an end of the operation rod, a drive shaft extending through the operation rod and driven by the motor, a cutting tool provided at a distal end of the operation rod to undergo rotation with the drive shaft, a handle mounted on the operation rod, and a pair of handgrips provided on distal ends of the handle. Each of a pair of fastener members traverses the handle and a respective one of the handgrips for fixedly mounting the respective handgrip to the handle at a point located substantially at a center of gravity of a sum of a mass of the respective handgrip and a mass of a portion of the handle extending between the fixing point and a respective one of the distal ends of the handle, such that the fastener members of the respective handgrips are located at positions of the handle at which vibrations transmitted to the handle from the motor through the operation rod are minimized.

Abstract: A vegetation trimmer having a head, a handle and an intermediate portion interconnecting the head to the handle. The intermediate portion is configured to include a first portion, a second portion and a third portion that are each arranged about a respective axis. The first portion is coupled to the primary handle at a first end and to the second portion at a second end. The second portion is coupled to the third portion at an end of the second portion opposite its connection to the first portion and an opposite end of the third portion is coupled to the head. The axis of the second portion is skewed to the axes of the first and third portions.

Abstract: A head for a line trimming apparatus includes a body member and a detachable cover that may include a replaceable insert for connecting the head to a drive shaft of a line trimming apparatus. The body member includes opposed openings and a filament-receiving channel for inserting an elongated flexible cutting filament into the head for retention thereon. A spring-biased clamp is supported on the body member and is engageable with the filament portion residing in the channel to releasably retain the filament connected to the head. An actuator button projects through an opening in the body member and is operable to be pressed to cause the clamp to release forcible engagement with a filament so that the filament may be removed and replaced. In one embodiment the clamp and actuator are an integrally formed part and the filament projects through openings formed in spaced apart arms of the clamp member.

Abstract: A lawn trimming device attachable or attached to the power take off end of a line trimmer primary unit to be powered by the line trimmer. The device includes a hood with a downwardly facing opening to allow the opening to be placed parallel to the ground, the hood defining a cutting cavity. A coupling of the hood to the line trimmer primary unit is provided and a shaft is included. A cutting element rotatably mounted relative to the hood from the shaft is provided and wherein the shaft is engageable to the line trimmer primary unit to derive rotational power from the line trimmer primary unit. The cutting element is positioned within the cutting cavity of the hood adjacent the opening. A hovering fan is also preferably included within the hood.

Abstract: A weed and grass trimmer has a cutting line which is fed as the weed trimmer is in use. The weed trimmer's cutting head includes a spool for cutting line, and a housing. The spool has flanges around its circumference, which may engage a corresponding upper or lower set of flanges in the housing. Actuation of a control located near the handle operates either a cable or a solenoid, causing the spool to reciprocate between the upper and lower flanges. The difference in centrifugal force and angular velocity during this reciprocation causes additional cutting line to be fed.

Abstract: A fixed line top-loading trimmer head for string trimmer machines, uses line segments of a predetermined length. The head has a central hub designed for attachment to the drive shaft of a string trimmer machine. A circular flange is attached to, and extends outwardly from, the central hub. This circular flange has one or more trimmer line exit openings on the circumference. The hub, located above the upper surface of the circular flange, is provided with either line termination apertures in the form of holes or channels which are angularly offset from the exit openings in the circular flange; or it is provided with an offset guide channel through which a trimmer line is passed between the exit openings. A line guide channel is located in the flange between the line exit openings and the line termination apertures, or the offset channel on the hub, for guiding line between the exit openings and the offset channel or termination apertures.

Abstract: A head for a string trimmer machine includes a housing member having a central axis. The housing member is adapted for attachment to a string trimmer machine and includes a serpentine guide path in the housing for a length of trimmer line, with the guide path being located in a plane including the central axis of the housing and terminating in exit openings on opposite sides of the housing.

Abstract: A trimmer head wherein the driveline of the power tool is connected to a core member. A spool is mounted to the core member and directly driven by the core member. A housing is mounted for axially sliding on the core member and a spring urges axial movement of the housing relative to the core member. Interlocking structure on the spool and housing produces interlocking for common rotation of the spool and housing responsive to urging by the spring. Release of the interlocking structure is affected by opposing said spring urging. Desirable additional features include selective alternate positioning of the spring for automatic and manual only release of said interlocking and a line loading assist provided by a tubular post through the spool alignable with housing eyelets for threading line through the eyelets and spool and winding thereof onto the spool by manual turning of the spool relative to the housing.

Abstract: A trimmer head for string trimmer machines uses a fixed line segment inserted into a passageway in the trimmer head housing where the line is engaged by a trimmer line retaining tab secured in the main housing and extending into the passageway for engagement by a trimmer line segment inserted into an entry opening.

Abstract: A grass-cutting head (1) including: a housing (3); and at least one spool (5) placed in the housing and on which a cutting line (F) can be wound. The spool is accessible from the outside to enable a supply of cutting line to be wound onto it without taking said spool out of the housing. A stop is provided to hold the spool in the housing while the supply of cutting line is being wound onto the spool.

Abstract: A cutting head for rotary trimmers in which at least one, and preferably two relatively short fixed lengths of flexible cutting line are inserted into opposed channels in the head and are secured in place by a pair of spring biased toothed cams. Each of the cams is pivotally mounted on a post within the housing adjacent one of the channels and defines a curvilinear camming surface having a plurality of uniformly spaced teeth thereon that project into the channels at increasing angles of inclination from the outermost tooth to the innermost tooth for engaging the line. A pair of torsion springs bias the cams to pivot on their mounting teeth such that the backsides of the teeth are continually urged toward the openings to the channels thereby allowing line to be inserted inwardly into the head past the toothed cams but retained by the cams against any outwardly directed forces acting on the line.

Abstract: A tool head for a motor-driven, manually guided implement for receiving a rotatable cutter tool is provided. The tool head comprises a housing in which is provided a tool shaft that is rotatably mounted via bearings. Secured on the tool shaft so as to turn with it is a tool carrying mechanism for the cutter tool. This tool carrying mechanism includes an engagement plate having an engagement surface, which is oriented perpendicular to the axis of the shaft, and a centering shoulder. The engagement plate and a centering element having the centering shoulder are embodied as separate components. The engagement plate is of light weight construction and is positively connected with the tool shaft. The centering element is made of a material, the hardness of which is adapted to the cutter tool.

Abstract: An improved flexible line rotary trimmer head of the type adapted to be bumped against the ground to effect payout of predetermined lengths of cutting line and which is secured to the trimmer by a drive bolt having a non-circular head portion and a depending shaft portion. The trimmer head housing defines a tubular portion depending axially from the upper housing surface and having a particularly configured upper portion disposed about and creating an interference fit with the head portion of said drive bolt and a lower portion particularly configured to create an interference fit with the head portion of the cam member of the line feeding assembly. A slidable push retainer is carried by the shaft portion of the drive bolt adjacent the line feeding assembly for securing the assembly to the shaft portion of the drive bolt.

Abstract: The present invention provides for an article and method for an improved weed trimmer cover that prevents unwanted projectile and debris distributions. A preferred embodiment of the weed trimmer comprises a domed guard structure that encompasses the effective cutting range of a prior art weed trimmer. Alternative embodiments may comprise elements that protect only portions of front, side and rear cutting areas. Embodiments of the invention also allow a user to lift up a cover element to allow close work among obstructions. Embodiments of the present invention also improve the performance of prior art weed trimmers by increasing cutting performance and preventing flexible materials from wrapping about the cutting elements and shafts.

Abstract: In combination, a toroidal rotary knife blade having a sharpened circular lower edge and an upper blade holder engagement section and a blade holder for the toroidal rotary knife blade. The blade holder includes a generally toroidal blade holding ring having an upper gear-engaging section including a plurality of gear teeth formed thereon for intermeshing with a drive gear and a lower blade engagement and retention section adapted to receive and retain the toroidal rotary knife blade therein. The blade holding ring is constructed of material selected from the group consisting of plastic, polyvinyl chloride, polyethylene, polypropylene, polystyrene, vinyl, and polyethylene terephthalate. Finally, the generally toroidal blade holding ring is operative to reduce noise and vibration emitted therefrom during rotation of the generally toroidal blade holding ring by a drive gear due to the use of plastic construction materials.

Abstract: A trimmer head for a line trimmer includes an automatic line feeding mechanism. The trimmer head accepts a spool of cutting line and spins extended line to trim, for example, unwanted vegetation in lawns. Upon actuation of the automatic line feeding mechanism, damaged or broken cutting line is replaced with additional cutting line from the spool. The mechanism is actuated remotely (electrically or manually) and eliminates the requirement to bump the trimmer head on the ground thus reducing wear and tear on the trimmer.

Abstract: A vegetation trimmer comprising an elongate main handle to which is connected a motor that rotatably drives a trimmer head located at a distal end of the handle. The trimmer head defines a rotational axis and includes a housing, a spool rotatably received in the housing for carrying at least one coil of flexible trimmer line, a latch member carried by one of the housing and the spool for releasably locking the spool against rotation with respect to the housing, and at least one seat carried by the other of the housing and the spool for receiving the latch member, whereby either the latch member or the at least one seat orbits about the rotational axis of the trimmer head when trimmer line is dispensed from the spool. The spool preferably carries a yieldable trimmer line guide for guiding trimmer line between opposed trimmer line exit ports in the housing.

Abstract: A reel (1) for winding a cutting cord for a grass-cutting device is described, said reel comprising a first and a second series of axially and angularly staggered teeth and, having constrained with it, an axially movable slider (21) provided with a toothing (23) cooperating with the first and the second series of teeth.

Abstract: A spooless trimmer head which utilizes finite lengths of trimmer line inserted through apertures in the trimmer head housing. The lines are thick, strong, long lasting and easily replaced when worn. One end of each line extends from the trimmer head to rotate and cut vegetation. The line includes a collar having a flange formed on an opposite end to retain a distal end of the line in the trimmer head housing. The line is crimped to the collar approximately ? the distance from the collar to the distal end of the line. The crimping location in combination with the position of the flange of the collar reduce the stress and strain on the trimmer line and enhance the longevity of the line.