Claims
- 1. A powered lawn edger steerable by an operator in the manner of a wheelbarrow, the edger comprising:
- a. a frame having handle means attached thereto adjacent to one end thereof and having a ground engaging wheel means including an axle attached thereto adjacent to the other end thereof;
- b. a cutting device mounted on said frame adjacent to said other end of said frame, said cutting device being rotatable on a substantially horizontal axle located forward of said ground engaging wheel means axle;
- c. a power unit immovably mounted at a fixed position on said frame forward of the operator and rearward of both said ground engaging wheel means and said cutting device;
- d. a ground contacting stand means; and,
- e. said edger having a stable operational rest position defined by said ground contacting stand means and said ground engaging wheel means contacting the ground at spaced points, said cutting device being positioned on said frame in an orientation with respect to said ground contacting stand means and said ground engaging wheel means such that said cutting device is incapable of contacting the ground under any circumstance when said edger is placed in said operational rest position, whereby at all times said cutting device is entirely free from contact with the ground when said edger is placed in said operational rest position.
- 2. A powered lawn edger steerable by an operator in the manner of a wheelbarrow, said edger comprising:
- a. a frame having handle means attached thereto adjacent to one end thereof and having a ground engaging wheel means including an axle attached thereto adjacent to the other end thereof;
- b. a power unit carried by said frame, said power unit being located forward of the operator and rearward of said ground engaging wheel means;
- c. a rotatable cutting device mounted on said frame adjacent to said other end of said frame, said rotatable cutting device being mounted for rotation in a substantially vertical plane, in use, on an axle positioned on said frame at a fixed radial distance from said power unit and forward of said ground engaging wheel means axle;
- d. an enclosed gear power train interconnecting said power unit and said rotatable cutting device to rotate said rotatable cutting device;
- e. a ground contacting stand means; and,
- f. said edger having a stable operational rest position defined by said ground contacting stand means and said ground engaging wheel means contacting the ground at spaced points, said rotatable cutting device being positioned on said frame in an orientation with respect to said ground contacting stand means and said ground engaging wheel means such that it is incapable of contacting the ground under any circumstance when said edger is placed in said operational rest position, whereby at all times said rotatable cutting device is entirely free from contact with the ground when said edger is placed in said operational rest position.
- 3. A powered lawn edger steerable by an operator in the manner of a wheelbarrow, said edger comprising:
- a. a frame having handle means attached thereto adjacent to one end thereof and having a ground engaging wheel means including an axle attached thereto adjacent to the other end thereof;
- b. a power unit carried by said frame, said power unit being located forward of the operator;
- c. a rotatable cutting device mounted on said frame adjacent to said other end of said frame, said rotatable cutting device being mounted for rotation in a substantially vertical plane, in use, on an axle positioned on said frame at a fixed radial distance from said power unit and forward of said ground engaging wheel means axle;
- d. an enclosed gear power train interconnecting said power unit and said rotatable cutting device to rotate said rotatable cutting device;
- e. a ground contacting stand means; and,
- f. said edger having a stable operational rest position defined by said ground contacting stand means and said ground engaging wheel means contacting the ground at spaced points, said rotatable cutting device being positioned on said frame in an orientation with respect to said ground contacting stand means and said ground engaging wheel means such that it is incapable of contacting the ground under any circumstance when said edger is placed in said operational rest position, whereby at all times said rotatable cutting device is entirely free from contact with the ground when said edger is placed in said operational rest position.
- 4. The edger as claimed in claim 1, including a gear box having an output shaft of which a portion thereof constitutes said axle of said cutting device and an input shaft, said output shaft being at any angle relative to said input shaft, and said output shaft being located at a fixed distance from said power unit.
- 5. The edger as claimed in claim 1, wherein said handle means is generally C-shaped in configuration.
- 6. The edger as claimed in claim 1, wherein said power unit has a throttle means to control the speed thereof, and said throttle means has an interlock mechanism wherein said throttle means is operable to increase the speed of said power unit above an idle speed only on immediately prior operation of said interlock mechanism.
- 7. The edger as claimed in claim 6, wherein said throttle means comprises a pivotable throttle trigger and said interlock mechanism comprises a pivotable interlock lever which in a rest position blocks movement of said throttle trigger in a speed increasing direction, said interlock lever being pivotable out of its rest position to permit said throttle trigger to be moved in a speed increasing direction.
- 8. The edger as claimed in claim 7, wherein said throttle means includes a stirrup guard to protect said throttle trigger.
- 9. The edger as claimed in claim 1, wherein said handle means includes handlegrips positioned one to either side of said vertical plane of rotation of said cutting device.
- 10. The edger as claimed in claim 8, wherein said handlegrips are spaced apart by a distance greater than, or substantially equal to, a shoulder to shoulder spacing of the operator.
- 11. The edger as claimed in claim 1, including a brake means which when unactuated prevents rotation of said cutting device and which requires continuous actuation during operation to allow for rotation of said cutting device.
- 12. The edger as claimed in claim 1, wherein said handle means is generally T-shaped in configuration.
- 13. The edger as claimed in claim 1, wherein said handle means is generally U-shaped in configuration.
- 14. The edger as claimed in claim 1, wherein said handle means comprises a hollow substantially rectangular frame.
- 15. The edger as claimed in claim 1, wherein said frame and said handle means together form a generally Y-shaped configuration.
- 16. The edger as claimed in claim 1, wherein said handle means is generally V-shaped in configuration.
- 17. The edger as claimed in claim 1, including a gear box having an output shaft of which a portion thereof constitutes said axle of said cutting device and an input shaft, said output shaft being at an angle of approximately 90.degree. relative to said input shaft, and said output shaft being located at a fixed distance from said power unit.
- 18. A powered lawn edger steerable by an operator in the manner of a wheelbarrow, the edger comprising:
- a. a frame having handle means attached thereto adjacent to one end thereof and having a ground engaging wheel means including an axle attached thereto adjacent to the other end thereof;
- b. a cutting device mounted on said frame adjacent to said other end of said frame, said cutting device being rotatable on a substantially horizontal axle located forward of said ground engaging wheel means axle;
- c. a power unit mounted on said frame forward of the operator and rearward of both said ground engaging wheel means and said cutting device; and,
- d. said edger having a stable operational rest position defined by said handle means and said ground engaging wheel means contacting the ground at spaced points, said cutting device being positioned on said frame in an orientation with respect to said handle means and said ground engaging wheel means such that said cutting device is incapable of contacting the ground under any circumstance when said edger is placed in said operational rest position, whereby at all times said cutting device is entirely free from contact with the ground when said edger is placed in said operational rest position.
- 19. A powered lawn edger steerable by an operator in the manner of a wheelbarrow, said edger comprising:
- a. a frame having handle means attached thereto adjacent to one end thereof and having a ground engaging wheel means including an axle attached thereto adjacent to the other end thereof;
- b. a power unit carried by said frame, said power unit being located forward of the operator and rearward of said ground engaging wheel means;
- c. a rotatable cutting device mounted on said frame adjacent to said other end of said frame, said rotatable cutting device being mounted for rotation in a substantially vertical plane, in use, on an axle positioned on said frame at a fixed radial distance from said power unit and forward of said ground engaging wheel means axle;
- d. an enclosed power train interconnecting said power unit and said rotatable cutting device to rotate said rotatable cutting device; and,
- e. said edger having a stable operational rest position defined by said handle means and said ground engaging wheel means contacting the ground at spaced points, said rotatable cutting device being positioned on said frame in an orientation with respect to said handle means and said ground engaging wheel means such that it is incapable of contacting the ground under any circumstance when said edger is placed in said operational rest position, whereby at all times said rotatable cutting device is entirely free from contact with the ground when said edger is placed in said operational rest position.
- 20. A powered lawn edger steerable by an operator with both hands in the manner of a wheelbarrow, said edger comprising:
- a. an elongate frame having a longitudinal axis, said frame having handle means with a pair of spaced apart gripping portions for gripping by the operator attached thereto adjacent to one end thereof and having a ground engaging wheel means including an axle attached thereto adjacent to the other end thereof;
- b. a power unit carried by said frame, said power unit being located forward of the operator and intermediate said ground engaging wheel means and said handle means gripping portions;
- c. a rotatable cutting device mounted on said frame adjacent to said other end of said frame, said rotatable cutting device being mounted for rotation in a substantially vertical plane, in use, on an axle positioned on said frame at a fixed radial distance from said power unit and forward of said ground engaging wheel means axle;
- d. an enclosed gear power train interconnecting said power unit and said rotatable cutting device to rotate said rotatable cutting device; and,
- e. said edger having a center of gravity which, in use, lies in a substantially vertical plane passing through said ground engaging wheel means, and said center of gravity also being intermediate said handle means gripping portions and said ground engaging wheel means, whereby said handle means can be manipulated to twist said frame about its longitudinal axis to laterally tilt said rotatable cutting device to a plane of rotation inclined from vertical.
- 21. The edger as claimed in claim 20, including a debris deflector supported by said ground engaging wheel means axle, and height adjustment means connected to said frame for increasing or decreasing the height of said frame relative to the ground, the height of said debris deflector relative to the ground remaining unchanged with the operation of said height adjustment means.
- 22. The edger as claimed in claim 20, wherein said gear power train includes a transmission including gear reduction, and wherein the gear ratio between said power unit and said rotatable cutting device is from 1.5:1 to 8:1.
- 23. The edger as claimed in claim 20, including a gear box having an output shaft of which a portion thereof constitutes said axle of said rotatable cutting device and an input shaft, said output shaft being at any angle relative to said input shaft.
- 24. The edger as claimed in claim 20, including a gear box having an output shaft of which a portion thereof constitutes said axle of said rotatable cutting device and an input shaft, said output shaft being at an angle of approximately 90.degree. relative to said input shaft.
- 25. The edger as claimed in claim 20, wherein said power unit has a throttle means to control the speed thereof, and said throttle means has an interlock mechanism wherein said throttle means is operable to increase the speed of said power unit above an idle speed only on immediately prior operation of said interlock mechanism.
- 26. The edger as claimed in claim 20, wherein said handle means gripping portions are positioned one to either side of said plane of rotation of said rotatable cutting device.
- 27. The edger as claimed in claim 26, wherein said handle means gripping portions are spaced apart by a distance greater than, or substantially equal to, a shoulder to shoulder spacing of the operator.
- 28. The edger as claimed in claim 20, wherein said handle means is generally C-shaped in configuration.
- 29. The edger as claimed in claim 20, wherein said handle means is generally T-shaped in configuration.
- 30. The edger as claimed in claim 20, wherein said handle means is generally U-shaped in configuration.
- 31. The edger as claimed in claim 20, wherein said handle means is generally V-shaped in configuration.
- 32. The edger as claimed in claim 20, wherein said frame and said handle means together form a generally Y-shaped configuration.
- 33. The edger as claimed in claim 20, wherein said handle means comprises a hollow substantially rectangular frame.
- 34. A powered lawn edger steerable by an operator in the manner of a wheelbarrow, said edger comprising:
- a. a frame having handle means attached thereto adjacent to one end thereof and having a ground engaging wheel means including an axle attached thereto adjacent to the other end thereof;
- b. a power unit carried by said frame, said power unit being located forward of the operator;
- c. a rotatable cutting device mounted on said frame adjacent to said other end of said frame, said rotatable cutting device being mounted for rotation in a substantially vertical plane, in use, on an axle positioned on said frame at a fixed radial distance from said power unit and forward of said ground engaging wheel means axle;
- d. an enclosed power train interconnecting said power unit and said rotatable cutting device to rotate said rotatable cutting device; and,
- e. said edger having a stable operational rest position defined by said handle means and said ground engaging wheel means contacting the ground at spaced points, said rotatable cutting device being positioned on said frame in an orientation with respect to said handle means and said ground engaging wheel means such that it is incapable of contacting the ground under any circumstance when said edger is placed in said operational rest position, whereby at all times said rotatable cutting device is entirely free from contact with the ground when said edger is placed in said operational rest position.
Priority Claims (2)
Number |
Date |
Country |
Kind |
PL9298 |
Jun 1993 |
AUX |
|
63-103/94 |
May 1994 |
AUX |
|
Parent Case Info
This application is a division of application Ser. No. 08/254,231, which was filed on Jun. 6, 1994, which is now U.S. Pat. No. 5,826,667.
US Referenced Citations (46)
Foreign Referenced Citations (1)
Number |
Date |
Country |
107917 |
Dec 1938 |
AUX |
Non-Patent Literature Citations (2)
Entry |
Weed eater (no other info). |
Masport (no other info). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
254231 |
Jun 1994 |
|