Apparatus for trimming lawns

• US 4,909,024 A
• Filed: 02/14/1989
• Issued: 03/20/1990
• Est. Priority Date: 02/14/1989
• Status: Expired due to Term

• Current Assignee: Leonardi Manufacturing Company Incorporated
• Original Assignee: Trim-A-Lawn Corporation
• Inventors: Jones, Dallas W., Orr, Matthew F., Young, Lauren J.
• Primary Examiner(s): Massie, Jerome W.
• Assistant Examiner(s): Bagnell, David J.
• Application Number:
  US07/310,285
• Time in Patent Office: 399 Days
• Field of Search: 56/17.4, 56/16.7, 56/17.2, 56/17.5, 56/252, 56/255, 56/320.1, 56/320.2, 56/DIG. 9, 56/12.7
• US Class Current: 56/16.7
• CPC Class Codes: A01D 2101/00 Lawn-mowers
• CPC Class Codes: A01D 34/63 having cutters rotating about a vertical axis
• CPC Class Codes: A01D 34/81 Casings; Housings A01D34/71 takes precedence
• CPC Class Codes: A01D 34/84 for edges of lawns or fields, e.g. for mowing close to trees or walls for embankments A01D34/86 takes precedence; edge trimmers A01G3/00
• CPC Class Codes: Y10S 56/09 Detachable implement

Abstract

The present invention discloses an improved apparatus, for trimming lawns and the like, comprising a housing having a rear ground engaging means, a cutting means extending beyond the front and substantially the left and right sides of the housing for permitting trimming of vegetation growing close to an obstruction, a skirt for preventing debris from being propelled rearwardly by the cutting means, and a removable front ground engaging means.

Claims

1. An apparatus for trimming around obstructions on lawns and the like, comprising:

(a) a housing;

(b) rotatable cutting means for mounting in said housing for trimming vegetation;

(c) said housing having front and rear portions;

(d) said housing including a top deck;

(e) said top deck having a periphery including first and second lower edges;

(f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means;

(g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge ;

while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly;

(h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming;

(i) front ground engaging means for permitting said housing to be moved on said lawn during trimming;

(j) means for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction;

(k) said releasable mounting means including a substantially U-shaped frame extending outwardly and forwardly from said front portion of said housing; and

(l) said frame including a base releasably secured to said front portion of said housing and first and second arms operably associated with said front ground engaging means; and

(m) drive means for said cutting means.

2. An apparatus, as in claim 1, wherein:

(a) said releasable mounting means includes means for adjusting the height of said front portion of said housing above the ground.

3. An apparatus as in claim 2, wherein:

(a) said first and second arms of said frame includes first and second end portions, respectively, extending downwardly from said first and second arms; and

(b) said height adjusting means is operably associated with said first and second end portions.

4. An apparatus as in claim 3, wherein:

(a) said height adjusting means includes a plurality of cooperating pairs of holes disposed in said first and second portions at different heights above the ground for rotatably mounting said front ground engaging means in any of said plurality of cooperating pairs of holes, thereby raising or lowering said front portion of said housing above the ground.

5. An apparatus as in claim 4, wherein:

(a) said front ground engaging means includes at least a wheel.

6. An apparatus as in claim 5, wherein:

(a) said front ground engaging means includes at least a pair of wheels.

7. An apparatus, as in claim 1, wherein:

(a) said housing includes means for adjusting the height of said rear portion of said housing above the ground.

8. An apparatus as in claim 7, wherein:

(a) said adjusting means includes a plurality of holes at different heights above the ground for mounting said rear ground engaging means thereby raising or lowering said rear portion of said housing above the ground.

9. An apparatus as in claim 8, wherein:

(a) said rear ground engaging means includes at least a wheel.

10. An apparatus, as in claim 1, wherein:

(a) said front portion of said housing is arcuate for permitting said operable portion of said cutting means to extend beyond a substantial portion of said front portion.

11. An apparatus as in claim 1, wherein:

(a) said housing includes fender means cooperating with said skirt for directing debris propelled by said cutting means substantially sidewardly.

12. An apparatus as in claim 11, wherein:

(a) said skirt includes left and right side portions; and

(b) said fender means extends laterally from each of said left and right side portions.

13. An apparatus as in claim 12, wherein:

(a) each of said fender means is disposed forwardly of said rear ground engaging means.

14. An apparatus for trimming around obstructions on lawns and the like, comprising:

(a) a housing;

(b) a rotatable cutting means for mounting in said housing for trimming vegetation;

(c) said housing having front and rear portions;

(d) said housing including a top deck;

(e) said top deck having a periphery including first and second lower edges;

(f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means;

(g) said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly;

(h) at least a rear wheel being operably associated with said housing;

(i) a front wheel assembly;

(j) means operable from above said top deck for releasably mounting said front wheel assembly to said front portion of said housing for permitting separation of said assembly from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; and

(k) drive means for said cutting means.

15. An apparatus as in claim 14, wherein:

(a) said rotatable cutting means includes flexible cutting elements.

16. An apparatus for trimming around obstructions on lawns and the like, comprising:

(a) a housing;

(b) a rotatable cutting means for mounting in said housing for trimming vegetation;

(c) said housing having front and rear portions;

(d) said housing including a top deck;

(e) said top deck having a periphery including first and second lower edges;

(f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means;

(g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly;

(h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming;

(i) front ground engaging means for permitting said housing to be moved on said lawn during trimming;

(j) means operable from above said top deck for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction; and

(k) drive means for said cutting means.

17. An apparatus as in claim 16, wherein:

(a) said releasable mounting means includes a frame extending outwardly from said front portion of said housing.

18. An apparatus as in claim 17, wherein:

(a) said frame includes a base releasably secured to said front portion of said housing.

19. An apparatus as in claim 17, wherein:

(a) said frame is secured to said top deck.

20. An apparatus for trimming around obstructions on lawns and the like, comprising:

(a) a housing;

(b) rotatable cutting means for mounting in said housing for trimming vegetation;

(c) said housing having front and rear portions;

(d) said housing including a tip deck;

(e) said top deck having a periphery including first and second lower edges;

(f) said housing including a skirt at said rear portion for preventing debris from being propelled rearwardly by said cutting means;

(g) at least a portion of said first lower edge being substantially higher above the ground than said second lower edge for permitting an operable portion of said cutting means when rotating to extend below and beyond said at least portion of said first lower edge while staying above said second lower edge, thereby permitting trimming of vegetation growing close to said obstruction while preventing debris from being propelled rearwardly;

(h) rear ground engaging means for permitting said housing to be moved on said lawn during trimming;

(i) front ground engaging means for permitting said housing to be moved on said lawn during trimming;

(j) means for releasably mounting said front ground engaging means to said front portion of said housing, thereby permitting separation of said front ground engaging means from said housing when trimming from said front portion of said housing vegetation growing close to said obstruction;

(k) said releasable mounting means including means for mounting said front ground engaging means forwardly of said front portion of said housing and forwardly of said operable portion of said cutting means; and

(l) drive means for said cutting means.

21. An apparatus as in claim 20, wherein:

(a) said releasable mounting means includes a frame extending outwardly from said front portion of said housing.

22. An apparatus as in claim 21, wherein:

(a) said frame is substantially U-shaped extending outwardly and forwardly from said front portion of said housing.

23. An apparatus as in claim 22, wherein:

(a) said frame includes a base releasably secured to said front portion of said housing and first and second arms operably associated with said front ground engaging means.

24. An apparatus as in claim 21, wherein:

(a) said frame is secured to said top deck.