Weed trimmer extension system

• US 20180092300A1
• Filed: 12/05/2017
• Published: 04/05/2018
• Est. Priority Date: 10/22/2012
• Status: Active Grant

• Current Assignee: Fournier And Grande Trust
• Original Assignee: Fournier And Grande Trust
• Granted Patent: US 10,638,663 B2
• Time in Patent Office: Days
• CPC Class Codes: A01D 34/4167 Protection devices
• CPC Class Codes: A01D 34/71 with means for discharging mown material A01D57/26 - A01D57/30 take precedence; combined with means for gathering or loading mown material A01D43/06
• CPC Class Codes: A01D 34/90 for carrying by the operator
• CPC Class Codes: A01D 43/0636 Flexible containers

Abstract

A weed trimmer extension system for cutting and collecting, or dispersing weeds includes a cutting enclosure, to which can be attached a collecting bag or a cutting disperser; a replacement cutting implement; and enclosure fasteners, for attaching the weed trimmer extension system to a weed trimmer. The cutting implement can further include a cutting blade; a cutting string with a greater cutting radius so the cutting string can operate close to an obstruction, without the cutting blade causing damage to the obstruction; and a perpendicular fin, which pushes air in a circular direction of motion, thereby creating a vortex of air, which rotates in the plane spanned out by the rotating cutting blade. The cutting enclosure covers the replacement cutting implement, which propels the cuttings, contained and directed by the cutting enclosure, into either the collecting bag or the cutting disperser, which disperses the weed cuttings.

Claims

1. A weed trimmer extension system for installation on a weed trimmer with a naked trimmer head, the weed trimmer extension system comprising:

a) a cutting enclosure including an ejection aperture in a side of the cutting enclosure;

b) enclosure fasteners;

c) a replacement cutting implement, comprising;

a cutting blade; and

at least one cutting string;

wherein the at least one cutting string is configured to have a greater cutting radius than the cutting blade, whereby the at least one cutting string can cut weeds and grass close to an obstruction, without the at least one cutting blade touching and potentially causing damage to the obstruction; and

d) a cutting implement fastener;

wherein the cutting enclosure is configured to be attached to the naked trimmer head of the weed trimmer with the enclosure fasteners, and the cutting blade is configured to be attached to a rotatable axle of the naked trimmer head via the cutting implement fastener, such that the cutting enclosure is configured to cover the cutting blade above and to sides of the cutting implement, such that the cutting enclosure in combination with a rotation of the cutting blade is configured to create a substantially planar air vortex that propels cuttings, which are contained and directed by the cutting enclosure, and wherein the cuttings are ejected through the ejection aperture;

wherein the cutting implement is configured to be mounted on the rotatable axle and tightened in place with the cutting implement fastener.

2. The weed trimmer extension system of claim 1, wherein the at least one cutting string is connected to an outer end of the cutting blade.

3. The weed trimmer extension system of claim 1, wherein the cutting enclosure further comprises:

a sidewall, which encloses the cutting blade to the sides of the cutting implement, wherein the sidewall is configured with a sidewall aperture in a segment of the sidewall, such that the segment has been straightened to fit inside a full radius of the sidewall; and

wherein the at least one cutting string is configured to extend beyond the sidewall, and during rotation protrude through the sidewall aperture.

4. The weed trimmer extension system of claim 1, wherein the replacement cutting implement, further comprises at least one perpendicular fin, which is perpendicularly connected to the cutting blade, along a length of the cutting blade, between the cutting blade and the cutting enclosure, such that the at least one perpendicular fin strengthens the substantially planar air vortex.

5. The weed trimmer extension system of claim 4, wherein the at least one perpendicular fin further comprises at least one aperture.

6. The weed trimmer extension system of claim 4, wherein the cutting enclosure further comprises:

a rim that is mounted on an inside of a top of the cutting enclosure;

such that the cutting blade is configured to rotate inside a perimeter of the rim, such that the at least one perpendicular fin is configured to rotate inside the perimeter, between the cutting blade and the top of the cutting enclosure.

7. The weed trimmer extension system of claim 1, wherein the cutting enclosure further comprises an ejection canal, such that the air vortex propels cuttings via the ejection canal from the cutting enclosure to the ejection aperture in the side of the cutting enclosure.

8. The weed trimmer extension system of claim 1, further comprising:

a protruding spacer;

wherein the protruding spacer is configured to be mounted on the rotatable axle and tightened in place with the cutting implement fastener, such that the protruding spacer protrudes underneath the cutting implement, whereby the protruding spacer reduces a risk of close contact with the ground, whereby the strength of the air vortex is reduced, and a risk of the cutting implement impacting ground during use is reduced.

9. The weed trimmer extension system of claim 8, wherein an external protrusion of the protruding spacer is in a range of 0.5-2 inches.

10. The weed trimmer extension system of claim 8, wherein the protruding spacer further comprises:

a) a spacer aperture, from a central part of an inner end to a central part of an outer end of the protruding spacer; and

b) an inner ledge, which further comprises a central aperture;

wherein the inner ledge is attached to the protruding spacer inside the spacer aperture, whereby the axle fits through the spacer aperture and the central aperture, and the cutting implement fastener is fastened against an outer side of the inner ledge, when the cutting implement fastener is fastened to the rotatable axle.

11. A weed trimmer extension system for installation on a weed trimmer with a naked trimmer head, the weed trimmer extension system comprising:

a) a cutting enclosure including an ejection aperture in a side of the cutting enclosure;

b) a replacement cutting implement, comprising;

a cutting blade; and

at least one perpendicular fin, which is perpendicularly connected to the cutting blade, along a length of the cutting blade, between the cutting blade and the cutting enclosure, such that the at least one perpendicular fin strengthens the substantially planar air vortex;

c) enclosure fasteners; and

d) a cutting implement fastener;

wherein the cutting enclosure is configured to be attachable to the naked trimmer head of the weed trimmer with the enclosure fasteners, and the replacement cutting implement is configured to be attachable to a rotatable axle of the naked trimmer head, such that the cutting enclosure is configured to cover the rotatable replacement cutting implement, above and to sides of the cutting implement, such that the cutting enclosure in combination with a rotation of the replacement cutting implement is configured to create a substantially planar air vortex that propels cuttings, which are contained and directed by the cutting enclosure, and wherein the cuttings are ejected through the ejection aperture, wherein the cutting implement is configured to be mounted on the rotatable axle and tightened in place with the cutting implement fastener.

12. The weed trimmer extension system of claim 11, wherein the replacement cutting implement further comprises:

at least one cutting string;

wherein the at least one cutting string is configured to have a greater cutting radius than the cutting blade, whereby the at least one cutting string can cut weeds and grass close to an obstruction, without the at least one cutting blade touching and potentially causing damage to the obstruction.

13. The weed trimmer extension system of claim 12, wherein the at least one cutting string is connected to an outer end of the cutting blade.

14. The weed trimmer extension system of claim 12, wherein the cutting enclosure further comprises:

a sidewall, which encloses the cutting blade to the sides of the cutting implement, wherein the sidewall is configured with a sidewall aperture in a segment of the sidewall, such that the segment has been straightened to fit inside a full radius of the sidewall; and

wherein the at least one cutting string is configured to extend beyond the sidewall, and during rotation protrude through the sidewall aperture.

15. The weed trimmer extension system of claim 11, wherein the cutting enclosure further comprises an ejection canal, such that the air vortex propels cuttings via the ejection canal from the cutting enclosure to the ejection aperture in the side of the cutting enclosure.

16. The weed trimmer extension system of claim 11, further comprising:

a protruding spacer;

wherein the protruding spacer is configured to be mounted on the rotatable axle and tightened in place with the cutting implement fastener, such that the protruding spacer protrudes underneath the cutting implement, whereby the protruding spacer reduces a risk of close contact with the ground, whereby the strength of the air vortex is reduced, and a risk of the cutting implement impacting ground during use is reduced.

17. The weed trimmer extension system of claim 16, wherein an external protrusion of the protruding spacer is in a range of 0.5-2 inches.

18. The weed trimmer extension system of claim 16, wherein the protruding spacer further comprises:

a) a spacer aperture, from a central part of an inner end to a central part of an outer end of the protruding spacer; and

b) an inner ledge, which further comprises a central aperture;

wherein the inner ledge is attached to the protruding spacer inside the spacer aperture, whereby the axle fits through the spacer aperture and the central aperture, and the cutting implement fastener is fastened against an outer side of the inner ledge, when the cutting implement fastener is fastened to the rotatable axle.

19. The weed trimmer extension system of claim 11, wherein the at least one perpendicular fin further comprises at least one aperture.

20. The weed trimmer extension system of claim 11, wherein the cutting enclosure further comprises:

a rim that is mounted on an inside of a top of the cutting enclosure;

such that the cutting blade is configured to rotate inside a perimeter of the rim, such that the at least one perpendicular fin is configured to rotate inside the perimeter, between the cutting blade and the top of the cutting enclosure.