With Wheel Or Roller Patents (Class 172/17)
  • Patent number: 11006570
    Abstract: A wheeled weed trimmer support assembly for using a weed trimmer to evenly and easily cut grass includes a rear support apparatus and a front support apparatus. The rear support apparatus comprises a rear clamp that is selectively engageable with a shaft of a weed trimmer and a rear support coupled to the rear clamp. A rotational joint is coupled to the rear support. A rear fork is coupled to a bottom portion of the rotational joint and a rear wheel is coupled to the rear fork. The front support apparatus comprises a front clamp that is selectively engageable with the shaft of the weed trimmer. A front support is coupled to the front clamp. A front fork is coupled to a front bottom end of the front support and a pair of front wheels is coupled to the front fork.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: May 18, 2021
    Inventor: Luther Cain
  • Patent number: 10117372
    Abstract: Described herein is a combination apparatus and methods of using the combination apparatus. The combination apparatus is operable as both an edger and a sod cutter. The combination apparatus includes an arm that oscillates when driven by a motor. Both a sod cutter blade and an edger blade are coupled to the arm.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: November 6, 2018
    Inventor: Thomas David Reed
  • Patent number: 8555993
    Abstract: A multi-purpose dual blade tool with a hitch pin system that allows the operator to adjust the tool to serve as a sod cutter, scuffle hoe, or lightweight pick-ax which allows the operator to use the tool in an upright standing position. This tool is comprised of a base structure or assembly having points of attachment for a wheel or wheels, a cutting blade, an additional kick blade which mounts on a handle directly above the base structure or can be used independently as a lightweight pick ax, and a wooden handle with composite grip and multiple attachment holes.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: October 15, 2013
    Inventor: Ryan Mix
  • Patent number: 8176989
    Abstract: A wheeled support adapts a trimmer to function as a lawn edger. Because there are various trimmers to which the wheel may be mounted, an adapter plate is provided that is configured to match a selected trimmer on which adapter plate the wheel may be mounted. A bearing is provided between the adapter plate and the wheel so the wheel rotates freely on a drive shaft of a trimmer powered drive independent of rotation of the drive shaft. A mounting plate mountable to the wheel is typically provided for convenience of mounting the bearing and adapter plate to the wheel with the bearing fitting within the adapter plate and over the mounting plate. A trimmer cutter, which may be either a flexible line dispenser or a blade, typically is mounted to the drive shaft outside the wheel after the drive shaft passes through the adapter plate, bearing, mounting plate and wheel, although the cutter may mount inside the wheel.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: May 15, 2012
    Inventor: Valeriy Ponomarenko
  • Patent number: 7806196
    Abstract: An edger has a main frame that can be advanced controllably relative to a subjacent terrain, a cutting assembly on the main frame, a drive for rotating the cutting assembly around a first axis, and material repositioning structure on at least one of the main frame and cutting assembly. The cutting assembly is configured to produce a trench in underlying terrain as the cutting assembly is rotated by the drive in operation. The material repositioning structure controllably repositions material dislodged from underlying terrain by the cutting assembly to thereby avoid accumulation of dislodged material upon the edger as the edger is operated.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: October 5, 2010
    Assignee: Echo, Incorporated
    Inventor: Brent Peterson
  • Patent number: 7770574
    Abstract: A wheeled guide assembly for use with cut providing tools includes a base portion having a first end and a second end, and rockable between either of a first position, enabling straight-line cuts to be made, and a second position enabling controlled curved-line cuts. The base portion includes a plurality of wheels, with at least two pivot wheels, at least one fixed wheel, and at least one steerable wheel provided. The wheels are rollably coupled to the base portion and or a housing of the cut providing tool, such that the cut providing tool may be readily and easily rocked by the user into either the first position or the second position, as needed. This abstract is provided to comply with rules requiring an abstract, and is submitted with the intention that it will not be used to interpret or limit the scope and meaning of the claims.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: August 10, 2010
    Inventor: Americo D. Ferreira
  • Patent number: 7584542
    Abstract: A trimmer comprises a cutting head (1) housing a cutter (5), and an elongate shaft (2) for supporting the cutting head. The cutting head (1) is connected to the shaft (2) by connection means (3) permitting the cutting head (1) to be positioned with the cutter (5) either substantially horizontal or substantially vertical. The connection means (3) is such that, when the cutter (5) is substantially vertical, the longitudinal axis of the shaft (2) is parallel to the plane of rotation of the cutter.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: September 8, 2009
    Assignee: Husqvarna UK Limited
    Inventor: Ian Zetterstrom Smith
  • Publication number: 20080230240
    Abstract: A front suspension for a yard tool mounted on a bracket to a boom, the bracket having to support a drive shaft, a cutting disk, a shield and one or more front suspensions to dampen power transfer, the front suspension having a frame preferably connected to a wheel at a distal end and coupled to the bracket at a proximal end, the front suspension operated in parallel single orthogonal fold frameworks with height and width adjustments substantially below the yard tool center of mass, the front suspension having to support the yard tool in equilibrium in all operative and inoperative positions to save power, to guide the cutting disk with a longer and straighter cut, to dampen the cutting disk resistance adjacent to hard surfaces, and to fold away for the shield and cutting disk to perform soft yard grounds work.
    Type: Application
    Filed: May 30, 2008
    Publication date: September 25, 2008
    Inventor: Edward Patrick Hurley
  • Publication number: 20080223590
    Abstract: A landscape edging system and device, and methods of installation and use thereof, wherein a J-shaped track system is installed in a trench along landscape edges, and wherein a pulley wheel attached to a rod is utilized to push the grass down onto a cutting edge of the track to execute the edging process, thereby simplifying the task of edging, eliminating risk of personal injury and allowing for essentially silent lawn care at any hour of the day, wherein decorative outer coverings may be incorporated along the track edging to simulate landscape features, such as rock or brick, and wherein lighted tubing may be installed within the track, thereby enhancing visual nighttime display and illuminating the landscape edge for aesthetic as well as safety reasons.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 18, 2008
    Inventor: Richard Hall
  • Patent number: 7128164
    Abstract: A support has a post. The post has a circular cross sectional configuration. The post extends upwardly from the support. An arm has a collar. The collar is rotatably received on the post. The collar is pivotably coupled to the collar with a finger. The finger has a vertical aperture there through. A wheel assembly has a drive wheel centrally and a cutting wheel. The cutting wheel is outboardly and has a diameter greater than the diameter of the drive wheel. The wheel assembly has a clevis. The clevis is inboardly and has vertical aperture and a pin.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: October 31, 2006
    Inventor: Thomas C. Boland
  • Patent number: 7096966
    Abstract: A portable handheld edge cutter (1) has a cutterhead (2) fixed to a guide tube (4). Two wheels (6, 7) are attached to the cutterhead (2). The cutterhead (2) includes a gear unit mounted in a gear housing (8). A first wheel (7) is rotatably journalled on a first end (27) of the gear housing (8). On the opposite-lying end (28) of the gear housing (8), a cutting knife (9) is mounted and is rotatably driven by the output shaft (18) of the gear unit. In order to achieve a simple assembly of the edge cutter (1) and to protect the gear housing (8) against wear, the second wheel (6) is mounted between the gear housing (8) and the cutting knife (9) and that the two wheels (6, 7) are journalled coaxially to the output shaft (18).
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: August 29, 2006
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Maximilian Eberhardt, Sven Keller, Georg Becker
  • Patent number: 6997268
    Abstract: A trimmer comprises a cutting head (1) housing a cutter (5), and a shaft (2) for supporting the cutting head. A large diameter wheel (8) is rotatably mounted with respect to the cutting head (1), and a motor is provided for driving the cutter (5) via an output shaft (7). The cutting head (1) is connected to the shaft (2) by a joint (3) permitting the cutting head (1) to be positioned with its cutter (5) either substantially horizontal or substantially vertical. The wheel (8) is sized to contact the ground when the cutter (5) is substantially vertical and to circumscribed the axis of the output shaft (7). The arrangement is such that the cutter (5) extends beyond the circumference of the wheel (8).
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: February 14, 2006
    Assignee: Electrolux Outdoor Products Limited
    Inventor: Ian Zetterstrom Smith
  • Patent number: 6926090
    Abstract: A housing assembly for a power edger that includes a housing, a door and a latching system. The door is coupled to the housing and movable between an open position and a closed position. The latching system includes a latch member that is coupled to one of the housing and the door and a ramp that is coupled to the other one of the housing and the door. Contact between the ramp and the latch member when the door is being closed against the housing causes the latch member to move to an unlatched condition so as to automatically align the latch member to a latch aperture. This permits the door to be fully closed without the need to manually operate the latch member.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: August 9, 2005
    Assignee: Black & Decker Inc.
    Inventors: Oleksiy P. Sergyeyenko, Jacob R. Prosper, David M. Shaver
  • Patent number: 6691792
    Abstract: An edger attachment apparatus is provided for attaching to a drive-shaft-to-attachment coupling of a string trimmer device after the string trimmer head has been detached from the drive-shaft-to-attachment coupling. A relatively small diameter, power transmission driving gear is driven by an edger driven shaft. A relatively large diameter, power receiver gear is driven by the relatively small diameter, power transmission driving gear. A blade assembly drive shaft is connected to the relatively large diameter, power receiver gear. An edger blade assembly is driven by the blade assembly drive shaft. A wheel assembly support is attached to the gear housing, and a wheel assembly is connected to the wheel assembly support. In one embodiment, a height adjustment assembly is provided. In another embodiment, a tilt adjustment assembly is provided. In another embodiment, both a height adjustment assembly and a tilt adjustment assembly are provided.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: February 17, 2004
    Inventor: Stephen Timothy Keane
  • Patent number: 6688404
    Abstract: A portable handheld lawn edger includes a cutterhead (2) at the end (16) of a guide tube (4) as well as an internal combustion engine (3) at the other end (17). The engine is connected to the cutter blade (5) via a drive shaft (20) in the guide tube (4) and in the cutterhead (2). The cutter blade is mounted for rotation about an axis (6), which lies parallel to the ground during cutting operation, and is guided along the edge. A guide wheel (27) is provided on the end of the cutterhead (2) facing toward the engine (3). The cutterhead (2) can be rolled over the ground with the aid of the guide wheel (27). The service life of the edge cutter (1) is increased and the manufacturing costs are reduced in that the cutterhead (2) is provided with a spacer (7, 9) approximately at the elevation of the drive axis (6) of the cutter blade (5). The spacer (7, 9) projects from the cutterhead and is set on the ground and prevents abrasion of the cutterhead (2).
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: February 10, 2004
    Assignee: Andreas Stihl AG & Co.
    Inventors: Klaus-Martin Uhl, Heiko Rosskamp, Claus Strodthoff
  • Publication number: 20030230416
    Abstract: A hand control mechanism to produce a selectively changeable effect on a continuously variable input shaft is disclosed. The mechanism selectively varies the length of a lever arm to effect a change in the amount of rotation of a continuously variable input shaft of a machine.
    Type: Application
    Filed: June 13, 2003
    Publication date: December 18, 2003
    Inventor: Ervin H. Good
  • Patent number: 6659188
    Abstract: A hand-held edger capable of suppressing wear of a cover without an increase in the number of parts. The hand-held edger comprises a main rod supported by an operator's hand; a gear case supported at one end portion of the main rod; a rotating blade connected to a gear in the gear case; a power unit mounted to the other end portion of the main rod, for driving the rotating blade via the gear in the gear case; a resin-made cover attached to a flange of the gear case, for covering the rotating blade; and a wheel supported by the cover, and an outer periphery of the flange is coplanar with the periphery of at least the lowermost portion of the cover or diametrically outwardly protruded therefrom.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: December 9, 2003
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Kazuhiko Takemoto, Yoshiro Yamane, Tadao Yashirodai
  • Patent number: 6612376
    Abstract: A housing assembly for a power edger that includes a housing and a door that is coupled to the housing and movable between an open position and a closed position. When positioned in the closed position, labyrinth seal members that are formed onto the housing and the door engage one another to form a labyrinth seal that inhibits dirt and debris from being expelled from the housing assembly. The housing assembly also includes a guard for shrouding a rotating blade. The guard includes a confronting portion having a leading end and a trailing end. The confronting portion is defined by an increasing radius relative to the rotary axis of the blade.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: September 2, 2003
    Assignee: Black & Decker Inc.
    Inventors: Oleksiy P. Sergyeyenko, Jacob R. Prosper, David M. Shaver
  • Publication number: 20030070820
    Abstract: A housing assembly for a power edger that includes a housing and a door that is coupled to the housing and movable between an open position and a closed position. When positioned in the closed position, labyrinth seal members that are formed onto the housing and the door engage one another to form a labyrinth seal that inhibits dirt and debris from being expelled from the housing assembly. The housing assembly also includes a guard for shrouding a rotating blade. The guard includes a confronting portion having a leading end and a trailing end. The confronting portion is defined by an increasing radius relative to the rotary axis of the blade.
    Type: Application
    Filed: October 16, 2001
    Publication date: April 17, 2003
    Inventors: Oleksiy P. Sergyeyenko, Jacob R. Prosper, David M. Shaver
  • Patent number: 6516598
    Abstract: A powered cutting device (1) maneuverable in the manner of a wheelbarrow, brush cutter, or stick edger by a walking operator and operable to both horizontally mow and vertically trim vegetation. The cutting device (1) includes an elongated frame (5) having handles (3), a power unit (4) supported by the frame (5), a rotatable vegetative cutter (14, 15), and a power train interconnecting the power unit (4) and the cutter (14, 15). The cutter (14, 15) is movable between a mowing position (FIG. 1) in which it rotates about a substantially vertical axis, and a trimming position (FIG. 4) in which it rotates about a substantially horizonal axis. A releasable latch arrangement maintains the cutter (14, 15) in either of the two positions. The power train includes a power directing arrangement operable to rotate the cutter (14, 15) in each of the positions.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: February 11, 2003
    Inventors: John A. Notaras, Angelo L. Notaras, William P. Notaras
  • Publication number: 20020166677
    Abstract: A portable handheld lawn edger includes a cutterhead (2) at the end (16) of a guide tube (4) as well as an internal combustion engine (3) at the other end (17). The engine is connected to the cutter blade (5) via a drive shaft (20) in the guide tube (4) and in the cutterhead (2). The cutter blade is mounted for rotation about an axis (6), which lies parallel to the ground during cutting operation, and is guided along the edge. A guide wheel (27) is provided on the end of the cutterhead (2) facing toward the engine (3). The cutterhead (2) can be rolled over the ground with the aid of the guide wheel (27). The service life of the edge cutter (1) is increased and the manufacturing costs are reduced in that the cutterhead (2) is provided with a spacer (7, 9) approximately at the elevation of the drive axis (6) of the cutter blade (5). The spacer (7, 9) projects from the cutterhead and is set on the ground and prevents abrasion of the cutterhead (2).
    Type: Application
    Filed: June 3, 2002
    Publication date: November 14, 2002
    Inventors: Klaus-Martin Uhl, Heiko Rosskamp, Claus Strodthoff
  • Patent number: 6351930
    Abstract: A flexible flail trimmer is rendered operable for edging by a guide providing a physical indicator of the edge cutting segment of the rotating string and also providing a gently progressing string plane stabilizing surface producing a narrower operating wobble string thickness than a natural wobble plane thickness of usually greater amplitude. The guide is movable between operative and stowed positions.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: March 5, 2002
    Inventor: Steven E. Byrne
  • Patent number: 6283223
    Abstract: The invention is an all-in-one hand-held lawn edging tool. This device is essentially a handle with lawn edging attachments interchangeable with the handle portion. A 4-5″ steel pipe with handle, wheel and cutting edge are included. To complete the edging of an area, one makes a slit in the ground with the cutting edge, and then slides the rounded edge through the slit on the ground. Then, the plastic edging is inserted and the handle on the tool is used to stamp the ground around the edging.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: September 4, 2001
    Inventor: Roy Ayers
  • Patent number: 6179059
    Abstract: A dual blade assembly for a lawn edger, the assembly comprising first (140) and second (142) generally rectangular blades arranged in a substantially cross shaped configuration for rotation about a substantially central axis (R). Each of the first (140) and second (142) blades having a central region between two end cutting regions, at least one protuberance (144) in the central region and at least one recess (148) in the central region. The promuberance(s) (144) of one of the first (140) and second (142) blades is adapted to engage with the recess(es) (148) of the other of the first (140) and second (142) blades to counteract relative movement between the first (140) and second blades (142) about the rotational axis (R).
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: January 30, 2001
    Inventors: John Arthur Notaras, Angelo Lambrinos Notaras
  • Patent number: 6116350
    Abstract: The present invention discloses a powered lawn edger (1) which is steerable in the manner of a wheelbarrow. The edger has a Y or T-shaped frame (5,35,36,46) including a pair of handles (3,20,30,33,43,50). A power unit (4,40) is mounted on the frame forward of the operator between the handles and a ground engaging wheel (2). A cutting blade (17) is rotatable about an output shaft (16) of a gear box (7) which is powered from the power unit via a centrifugal clutch (57) having a brake (14). A debris deflector (15) is mounted on the wheel stub axle (10) and is not movable with height adjustment of the cutter blade (17).
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: September 12, 2000
    Inventors: John Arthur Notaras, Angelo Lambrinos Notaras
  • Patent number: 6092608
    Abstract: An attachment for a rotary garden tiller having edging capability for establishing perimeter of a flower bed alongside sidewalks, driveways, or fence lines which functions by cutting and separating grass from its roots at a uniform depth and width and in a controllable contoured line. The edger apparatus includes a cupped cultivation disc and a pulverizer wheel which includes chopping and digging capability. The cultivating disc shears vegetation and cultivates the soil in any contoured shape and maintains a fixed depth of three to four inches, requiring approximately one third of the time spent in edging required by other methods.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: July 25, 2000
    Inventor: Herbert J. Leger
  • Patent number: 6003611
    Abstract: A vertical drive shaft lawn edger is disclosed having a curb support roller system. A support roller is mounted directly behind the blade of the lawn edger. A height adjustment mechanism controls the height of the front wheel and the support roller in unison. The support roller has a smaller outer diameter than the front and rear wheels. Therefore, when edging along side a curb the support roller contacts the curb thereby providing support when the front wheel is suspended above the ground.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: December 21, 1999
    Assignee: MTD Products Inc.
    Inventor: David M Martinez
  • Patent number: 5983616
    Abstract: A garden tool comprising a blade having a sharpened edge to cut weeds rooted in an area of soil, and one or more tines, each tine having a pointed tip to cultivate the area of soil. The blade is spaced from one or more wheels of the garden tool to enable the sharpened edge to be inserted into the area of soil in order to cut the rooted weeds as the wheel(s) are traversed over the area of soil via a handle of the garden tool. The tine(s) are spaced from the one or more wheels to enable the pointing tip(s) to be inserted into the area of soil in order to cultivate the area of soil as the wheel(s) are traversed over the area of soil via the handle.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: November 16, 1999
    Inventor: John B. Smitherman
  • Patent number: 5970694
    Abstract: A lightweight, retractable tripod support having three wheels for attachment to virtually all hand-held trimmers, metal detectors and the like. The three-wheeled support being readily retractable to a folded position for transportation and storage and extendible to a deployed or working position. The support having a pair of clamping plates flanking the trimmer's shaft, a rear leg, two lateral side legs, a slider actuator mounted to the rear leg for longitudinal sliding movement during transition between the folded and deployed positions of the support and an articulating linkage joining the actuator to the clamping plates.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: October 26, 1999
    Inventor: Robert J. Knox, Jr.
  • Patent number: 5918683
    Abstract: A lawn edge trimmer having a supporting structure (21) and an edge trimming assembly (10; 10'). The trimming assembly includes a frame (12) supporting a rotatable cutting knife (18), and a rotatable supporting wheel (30; 30') connected to the frame (12). An axis of rotation of the knife is parallel to an axis of rotation of the wheel. The wheel is supported by a lever (32; 32') rotatably attached to the frame, and may be latched relative to the frame (12). The lever (32; 32') is provided with a mudguard (41).
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: July 6, 1999
    Assignee: Aktiebolaget Electrolux
    Inventors: Lars .ANG.ke Abelsson, Mikael Andreasson, Gote Karlsson
  • Patent number: 5826667
    Abstract: A powered lawn edger which is steerable by a walking operator in the manner of a wheelbarrow. The edger has a Y-shaped frame including a pair of handles each with handlegrips. A power unit is mounted on the frame between the handlegrips and a ground engaging wheel. A cutting blade is rotatable about an output shaft of a gear box which is powered from the power unit via a centrifugal clutch having a brake. A debris deflector is mounted on the axle of the wheel. An adjustment mechanism is provided to adjust the height of the cutting blade relative to the ground. The height of the debris deflector relative to the ground remains unchanged when the height of the cutting blade is adjusted.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: October 27, 1998
    Inventors: John Arthur Notaras, Angelo Lambrinos Notaras
  • Patent number: 5609213
    Abstract: A sod cutter and trencher which includes a pair of handle members with a roller at the lower end thereof and a cutter blade fixed behind the roller and extending downwardly therebelow into ground engaging trenching position and also includes a kick-bar for engagement by the operator's foot for applying downward and forward force for producing the desired trenching action.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: March 11, 1997
    Inventor: Robert C. Anderson
  • Patent number: 5592992
    Abstract: A blade assembly for a lawn edging machine. The blade assembly includes a hub, at least two spaced-apart blade members having two or more blade arms extending radially therefrom, and a horizontal blade member connecting the two blade members at their radially extended arm ends.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 14, 1997
    Inventor: Timothy J. Thompson
  • Patent number: 5408816
    Abstract: The carriage for holding horticultural motorized hand-held cutting devices, comprises an elongated frame having opposite longitudinal sides and opposite lateral sides to define opposite ends. At least one wheel which defines the front of the carriage, is rotatably mounted on the frame at one of the opposite lateral sides. An auxiliary wheel frame assembly, near the other of the opposite lateral sides, extends from the elongated frame, respectively away from each of the opposite longitudinal sides and downwardly from the elongated frame into a leg. Each of the legs has a wheel rotatably mounted thereto. A handle on said elongated frame, propels and directs the motion of the carriage. The elongated frame has rotatably mounted thereto a supporting holder assembly for holding in an operating position a horticultural motorized hand-held cutting device such as a weed eater, an edger, a trimmer, a blade cutter for branches and a cultivator.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: April 25, 1995
    Inventor: Lucille L. Cartier
  • Patent number: 5407012
    Abstract: The invention is directed to a portable handheld edge cutter and especially an edge cutter for maintaining the edges of a lawn. The edge cutter includes a drive motor and a rotating knife as well as a drive shaft between the motor and the knife. The knife end of the drive shaft is mounted in a support which is structurally part of the housing. The housing overlaps the knife at a predetermined region. A wheel or roller supports the housing on the ground. A projection is provided on the housing which indicates to the operator the precise direction in which the rotating knife is moved and so acts as a direction device for the operator.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: April 18, 1995
    Assignee: Andreas Stihl
    Inventor: Karl-Heinz Klopfer
  • Patent number: 5383330
    Abstract: A hand-held edger is disclosed which is so constructed that the lower portions of the gear box and the safety cover member are prevented from directly scraping against the ground during trimming operation to enable abrasion thereof to be avoided, and that tendency to be caught by lawn grasses and liability to wobble are extremely reduced to enable improved operational properties to be attained. The hand-held edger comprises a supporting rod 14 one end of which is connected to a prime mover, a gear box 20 connected to the other end of said supporting rod 14, a rotary blade 22 which is driven by power transmitted from said prime mover via said gear box 20, a safety cover member 12 which covers said rotary blade 22, and a traveling wheel 17 journal-supported by a rear portion 12b behind said gear box 20, wherein a ring-shaped traveling auxiliary wheel 30 is rotatably mounted over the circumference of said gear box 20.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: January 24, 1995
    Assignee: Kioritz Corporation
    Inventors: Yoetsu Yokocho, Michiyasu Kuwano, Fumihiko Aiyama
  • Patent number: 5351762
    Abstract: A weed cutter structure having a handle shaft with a rotary head containing at least one flexible cutter filament thereon, includes a guide assembly mounted to the handle shaft in adjacency to the cutter head, wherein the guide assembly includes a mounting bracket arranged for securement to the handle shaft, and a support bracket fixedly secured to the mounting bracket, with the support bracket having a wheel member. The guide assembly projects from a first side of the handle shaft relative to a second side of the handle shaft mounting a shield housing projection.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: October 4, 1994
    Inventor: Robert W. Bean
  • Patent number: 5325928
    Abstract: An electric edger having a transversely mounted electric motor for rotationally driving a vertically oriented cutting blade. The edger is supported by a pair of auxiliary rear wheels and a large on-center front or main wheel that is journalled to a hub that is mounted directly to the exterior of the motor field casing so that the wheel rotates about the motor. The rotational axis of the on-center wheel is substantially aligned with the cutting blade axis and the plane of the wheel is substantially aligned with the center of gravity of the motor subassembly. This configuration, together with the large diameter of the wheel, improves the balance and maneuverability of the edger, particularly around irregularly shaped borders and over uneven terrain, without increasing the overall dimensions of the unit.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: July 5, 1994
    Assignee: Black & Decker Inc.
    Inventors: Robert P. Wagster, Vernon R. Lacher, John S. Vantran
  • Patent number: 5226248
    Abstract: A trencher for digging a trench having a vertical face and a sloping face. The trencher includes a frame and means for moving the trencher over the surface of the ground. A rotor is connected to drive means which rotate the rotor, thereby digging the trench. The rotor includes a longitudinal rotor member coupled to a transverse rotor member. The rotor may also include a plurality of teeth-like elements coupled to the transverse rotor member.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: July 13, 1993
    Assignee: Brown Manufacturing Corporation
    Inventor: Charles H. Pollard
  • Patent number: 5226486
    Abstract: A lawn edger is arranged for mounting a lawn edging tool thereon, wherein the apparatus includes a support plate movably mounted by underlying aligned wheel members. A clamp mounted to a top surface of the support plate is positioned rearwardly of a medial forward edge of the support plate, with the medial forward edge having a downwardly projecting abutment guide plate mounted orthogonally and downwardly therefrom.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: July 13, 1993
    Inventor: Johnnie J. Naiser
  • Patent number: 5222750
    Abstract: A weed-cutting, tool-carrying apparatus which comprises a pair of wheels secured to the legs of an upright, U-frame, handle element having a connecting bar, a backward, laterally extended, U-frame guide bar and rest element secured to the legs of the U-frame handle element, and a cap and clamping plate secured to the connecting bar, the clamping plate adapted to receive the shaft of the weed-cutting tool, and U-threaded bolts to secure the shaft in an adjustable position within and to the clamping plate, thereby providing an effective carrying apparatus for a portable weed-cutting tool.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: June 29, 1993
    Inventor: A. Harlow Ellis
  • Patent number: 5199502
    Abstract: An edger having a driving device for operating a rotary blade, the driving device including a driving pulley; a pulley to be driven; a driving belt arranged between the two pulleys; a swing arm having the center of its swinging motion at a position different from the center of rotation of the driving pulley; a rod slidably supported by the swing arm and supporting the pulley to be driven; a spring for urging the rod in a direction in which the distance between the shafts of the two pulleys is elongated; a drive-side pulley cover and a driven-side pulley cover.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: April 6, 1993
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Makizo Hirata, Shigeharu Ohama, Michio Nishimura
  • Patent number: 5156217
    Abstract: An edger is provided having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main frame, a rotary blade disposed in the front portion on either side of the main frame and capable of conducting edging, an engine mounted on the main frame and a driving device for operating the rotary blade with the engine, a supporting arm pivotally connected at its upper end to the main frame and rotatably supporting at its lower end the rear wheel positioned opposite to the rotary blade in such a manner that the position of the rear wheel can be vertically adjusted with respect to the main frame, and a positioning mechanism for physically positioning the vertical position of the rear wheel disposed between the main frame and the supporting arm, the positioning mechanism comprising a securing portion formed in either the main frame or the supporting arm, a securing arm having a plurality of securing steps which can be secured to the secu
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: October 20, 1992
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Makizo Hirata, Shigeharu Ohama
  • Patent number: 5139091
    Abstract: An edger having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main frame, a rotary blade disposed in the front portion of either side of the main frame and capable of conducting edging, an engine mounted on the main frame and a driving device for operating the rotary blade with the engine, the edger comprising:an operating lever assembly including a first and second lever for controlling the operating position of the rotary blade. The first lever includes a portion to be gripped during operation of the edger, and the second lever includes a position setting mechanism. Both levers are operatively connected together and control the rotary blade via a connection device.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: August 18, 1992
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Tetsuzo Fujikawa, Makizo Hirata, Shigeharu Ohama, Michio Nishimura
  • Patent number: 5119879
    Abstract: An edger having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main fame, a rotary blade disposed in the front portion of either side of the main frame and capable of conducting edging, an engine mounted on the main frame and a driving device for operating the rotary blade with the engine, the edger comprising: a supporting arm for supporting the rear wheel positioned opposite to the rotary blade in such a manner that the position of the rear wheel positioned opposite to the rotary blade can be vertically adjusted with respect to the main frame; and a positioning mechanism for positioning the vertical position of the rear wheel disposed between the main frame and the supporting arm.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: June 9, 1992
    Assignee: Kawasaki Jukigyo Kabushiki Kaisha
    Inventors: Tetsuzo Fujikawa, Makizo Hirata, Shigeharu Ohama
  • Patent number: 5115870
    Abstract: A flexible flail trimmer for conventional trimming of grass, weeds and the like and for edging of sidewalks has a combined guide and guard rotatably mounted inboard of the trimmer cutting head. The guide and guard provides dynamic trimmer indexing on a sidewalk edge for guiding the trimmer vertically and horizontally to deliver a uniform, aesthetically pleasing turf edge. The combined guide and guard does not inhibit trimming of grass and weeds in the conventional trimming manner, and actually enhances the user's visualization and performance of such trimming.
    Type: Grant
    Filed: December 31, 1990
    Date of Patent: May 26, 1992
    Inventor: Steven E. Byrne
  • Patent number: 5095687
    Abstract: A conventional rotating flexible line-type vegetation trimmer having a shield covering from above a length of line whipping from one end in a generally horizontal plane about a generally vertical axis, is provided with a swivelable ground-engaging wheel, supported out-of-the-way-of the rotating line, by adjustable swivel brackets respectively mounted by a clip and a clamp to a down-turned flange on the shield and an intermediate location on the handle shaft of the trimmer, and to a shaft on the lower end of which the wheel is swivelably mounted.
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: March 17, 1992
    Assignee: The Big Company, Inc.
    Inventors: Robert G. Andrew, Gary J. Grandstaff, Ira L. Morris
  • Patent number: 5070685
    Abstract: A wheeled carriage for supporting a portable hedge trimmer for use as a ground foliage mower. The carriage includes a frame for supporting the hedge trimmer motor chassis and a bar extending laterally of the frame for releasably securing the hedge trimmer cutting blade in a generally horizontal orientation close to the ground surface.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: December 10, 1991
    Inventor: Edward R. Galt
  • Patent number: 5029435
    Abstract: A lawn trimming tool (10) has an elongate support column or member (12) with a cutter head (16) mounted for rotation at a lower end thereof and a flexible line or string (20) extending from the cutter head (16) for cutting in a plane perpendicular to the axis of rotation. An edging attachment (28) is removably mounted by a bolt (50) to a support assembly (32) mounted on the support column (12). Front and rear rollers (58A, 58B, 58C, 58D) are mounted for rolling contact along a curb, driveway, or sidewalk (D) and an edging guide (60) secured to roller 58D rides alongside the driveway (D) for guiding the trimming tool (10).
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: July 9, 1991
    Inventor: James O. Buchanan
  • Patent number: RE34815
    Abstract: A flexible flail trimmer for conventional trimming of grass, weeds and the like and for edging of sidewalks has a combined guide and guard rotatably mounted inboard of the trimmer cutting head. The guide and guard provides dynamic trimmer indexing on a sidewalk edge for guiding the trimmer vertically and horizontally to deliver a uniform, aesthetically pleasing turf edge. The combined guide and guard does not inhibit trimming of grass and weeds in the conventional trimming manner, and actually enhances the user's visualization and performance of such trimming.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: January 3, 1995
    Inventor: Steven E. Byrne