Vegetation trimmer

• US 9,661,804 B1
• Filed: 11/06/2014
• Issued: 05/30/2017
• Est. Priority Date: 11/25/2013
• Status: Expired due to Fees

• Current Assignee: Robert V. Albertson
• Original Assignee: Robert V. Albertson
• Inventors: Albertson, Robert V.
• Primary Examiner(s): SWINNEY, JENNIFER B
• Application Number:
  US14/535,289
• Time in Patent Office: 936 Days
• CPC Class Codes: A01D 34/4166 Mounting or replacement of the lines
• CPC Class Codes: A01D 34/73 Cutting apparatus
• CPC Class Codes: A01D 34/90 for carrying by the operator

Abstract

A vegetation trimmer has a motor driven cutting head with cutting tools having blades and flexible filaments attached to the blades. The blades have first and second holes accommodating the flexible filaments.

Claims

1. A vegetation trimmer for cutting vegetation comprising:

a wand,

a motor mounted on the wand,

a cutting head mounted on the wand operatively connected to the motor for rotation relative to the wand, and

a plurality of cutting tools connected to the cutting head for rotation with the cutting head,

each cutting tool having a blade having a body, said body having first and second ends, a head joined to the first end of the body, said second end of the body being spaced from the head and at least one side cutting edge on the body extending between the head and the second end of the body of the blade, a flexible filament connected to the body whereby on rotation of the cutting head and the cutting tools cut vegetation in the path of rotation of the cutting tools,

the body including a first hole and a second hole laterally spaced from the first hole, said first and second holes extending through the body adjacent the head and a third hole and a fourth hole laterally spaced from the third hole, said third and fourth holes extending through the body adjacent the second end of the body, the first and second holes being spaced from the third and fourth holes and

the flexible filament having first portions extending through the first and second holes, a loop portion joining the first portions, a second portion joined to one of the first portions and extending from the first hole to and through the fourth hole, a third portion joined to the other of the first portions and extending from the second hole to and through the third hole, said second and third portions being crossed between the first and second holes and the third and fourth holes, a fourth portion joined to the second portion and extending from the fourth hole away from the second end of the body and a fifth portion joined to the third portion and extending away from the second end of the body.

2. The vegetation trimmer of claim 1 wherein:

the flexible filament is a one-piece elongated plastic cord.

3. The vegetation trimmer of claim 1 wherein:

the body has a top surface and a bottom surface,

said third hole extending at an obtuse angle from the top surface to the bottom surface of the body and toward the second end of the body, and

said fourth hole extending at an obtuse angle from the top surface to the bottom surface toward the second end of the body.

4. The vegetation trimmer of claim 1 wherein:

the blade is a flat plastic member.

5. The vegetation trimmer of claim 1 wherein:

the blade is a one-piece plastic member.

6. The vegetation trimmer of claim 1 wherein:

said blade is a one-piece flat plastic member, and

the flexible filament is a one-piece elongated plastic cord.

7. A cutting tool on a cutting member of a vegetation trimmer comprising:

a blade having a body, said body having first and second ends, a head joined to the first end of the body, said second end being spaced from the head, and a side cutting edge extending between the head and the second end of the body, and

a flexible filament connected to the body,

the body including a first hole, a second hole laterally spaced from the first hole, said first and second holes extending through the body adjacent to the head, a third hole and a fourth hole laterally spaced from the third hole, said third and fourth holes extending through the body adjacent to the second end of the body, the first and second holes being spaced from the third and fourth holes,

the flexible filament having first portions extending through the first and second holes, a loop portion joined to the first portions located between the first and second holes, a second portion joined to one of the first portions and extending from the first hole to and through the fourth hole, a third portion joined to the other of the first portions and extending from the second hole to and through the third hole, said second and third portions being crossed between the first and second holes and the third and fourth holes, a fourth portion joined to the second portion and extending from the fourth hole away from the second end of the body, and a fifth portion joined to the third portion and extending away from the second end of the body.

8. The cutting tool of claim 7 wherein:

the head has a hole.

9. The cutting tool of claim 7 wherein:

the body of the blade includes two side cutting edges extending between the head and the second end of the body.

10. The cutting tool of claim 7 wherein:

the side cutting edge of the blade is a linear knife edge.

11. The cutting tool of claim 7 wherein:

the body has a top surface and a bottom surface,

said third hole extending at an obtuse angle from the top surface to the bottom surface toward the second end of the body, and

said fourth hole extending at an obtuse angle from the top surface to the bottom surface toward the second end of the body.

12. The cutting tool of claim 7 wherein:

the blade is a one-piece plastic member.

13. The cutting tool of claim 7 wherein:

the blade is a one-piece flat plastic member, and

said flexible filament is a one-piece elongated plastic line.

14. A cutting tool on a cutting member of a vegetation trimmer comprising:

a blade having a body, said body having a top surface, a bottom surface, a first end and a second end spaced from the first end, a head connected to the first end of the body, and a side cutting edge extending between said head and the second end of the body,

a flexible filament connected to the body of the blade,

said body of the blade including a first hole, a second hole laterally spaced from the first hole, said first and second holes extending through the body adjacent to the head, and a third hole extending through the body adjacent to the second end of the body, the first and second holes being spaced from the third hole, said third hole extending an obtuse angle from the top surface to the bottom surface toward the second end of the body,

the flexible filament having first portions extending through the first and second holes, a loop portion joining the first portions located between the first and second holes, a second portion joined to one of the first portions and extending from the first hole to and through the third hole, a third portion joined to the other of the first portions and extending from the second hole to and through the third hole, a fourth portion joined to the second portion extending from the third hole away from the second end of the body, and a fifth portion joined to the third portion extending from the third hole away from the second end of the body.

15. The cutting tool of claim 14 wherein:

the flexible filament is a one-piece elongated plastic cord.

16. The cutting tool of claim 14 wherein:

the head and body of the blade is a one-piece plastic member, and

the flexible filament is a one-piece elongated plastic cord.