Lawn mower apparatus

• US 4,354,339 A
• Filed: 11/14/1980
• Issued: 10/19/1982
• Est. Priority Date: 11/14/1980
• Status: Expired due to Term

• Current Assignee: Clarence Nokes
• Original Assignee: Clarence Nokes
• Inventors: Nokes, Clarence
• Primary Examiner(s): Hafer, Robert A.
• Application Number:
  US06/207,031
• Time in Patent Office: 704 Days
• Field of Search: 56/294, 56/295, 56/10.2, 56/DIG. 15, 200/46, 200/153 LA, 200/153 LB, 200/153 T, 364/436, 364/900, 235/448
• US Class Current: 56/10.20A
• CPC Class Codes: A01D 2101/00 Lawn-mowers
• CPC Class Codes: A01D 34/008 for automated or remotely controlled operation

Abstract

A programmed steering and cutting blade control apparatus for self-contained lawn mowers with a nylon tape having rectangular members disposed on the upper and lower surfaces of the nylon tape which extends between two reels where the rectangular members actuate micro switches disposed below the nylon tape and actuate micro switches disposed above the nylon tape where such upper micro switches are connected to a plate which is reversible so as in one instance to reverse the plate and the micro switches are disposed away from the nylon tape and not actuated. Two lower micro switches actuate a turning wheel motor and a third micro switch actuates a brake. The upper micro switch actuates the cutting blades. The movement of the programmed nylon tape is synchronized with the movement of the drive wheels to ensure the self-contained lawn mower moves along the preplanned route.

Claims

1. A programmed steering and cutting blade control apparatus for self-contained lawn mowers having steering control means and cutting blade control means comprising:

a flexible elongated member;

actuating means disposed on an upper and lower surface of said flexible elongated member;

said actuating means embodying in code a predetermined series of steering and cutting blade commands;

a plurality of rotatable storage means for retaining said flexible elongated member;

actuator means disposed above and below said flexible elongated member for contacting actuating means thereon to read the coded commands thereon;

said actuator means being connected to the steering control means and cutting blade control means for operating those means in a manner dictated by the coded commands.

2. The control apparatus of claim 1 wherein the flexible elongated member is a nylon tape.

3. The actuating means of claim 1 wherein the said actuating means are a plurality of rectangular members permanently fixed to said flexible elongated member.

4. The actuating means of claim 3 wherein the rectangular members are substantially the same width and thickness and vary substantially in length.

5. The actuating means of claim 3 wherein the rectangular members disposed on said flexible elongated member form raised members.

6. A programmed steering and cutting blade control apparatus for self-contained lawn mowers of claim 1, the actuator means further comprising a plate and a plurality of switch means disposed adjacent said flexible elongated member.

7. The actuator means of claim 6 wherein the plurality of switch means are disposed on a lateral face of the plate substantially adjacent to one end of said plate.

8. The switch means of claim 7 are micro switches.

9. The switch means of claim 7 wherein the switch means is attached at a proximal end to the plate and extends perpendicular from said plate and terminates with a substantially curved distal end.

10. The plate of claim 7 wherein said plate is removable and detachably fixable to dispose the switch means toward or away from the flexible elongated member.

11. A programmed steering and cutting blade control apparatus for self-contained lawn mowers of claim 1, the actuator means further comprising a plurality of switch means laterally disposed and permanently attached to a fixed support means.

12. The actuator means of claim 11 wherein the switch means are micro switches.

13. The switch means of claim 12 wherein a first portion of the switch means is attached to the support means, a second portion terminates with a bulbous end and said second portion forms an obtuse angle with said first portion.

19. The apparatus of claim 1 further comprising:

a base supported by a plurality of wheels;

a drive means having a shaft with a first gear means disposed at an end thereof;

a second gear means of greater diameter than said first gear means disposed for driven connection with said first gear means with rotatably connecting means connecting said second gear means to at least one of said rotatable storage means;

a third gear means of greater diameter than said first gear means, disposed for driven connection with said first gear means with rotatable connecting means connecting said third gear means to at least one of said wheels for drivingly rotating said wheel to move said base;

the first, second and third gear means having connecting means wherein angular displacement of said first gear means will similarly angularly displace the other two gear means.

20. The first, second and third gear means of claim 19 are sprockets.

21. The rotatable means of claim 19 for connecting said second gear means and said rotatable storage means is a flexible shaft.

22. The rotatable means of claim 19 for connecting said third gear means and said wheel is a flexible shaft.

23. The connecting means of claim 19 for connecting said first, second and third gear means is a chain.

24. The angular displacement of gear means of claim 19 wherein the ratio of displacement of said first, second or third gear is constant with respect to the other two gear means.

14. A programmed steering and cutting blade control apparatus for self-contained lawn mowers having steering control means comprising a flexible elongated member, actuating means disposed on a surface of said flexible elongated member, said actuating means embodying in code a predetermined series of steering commands, a plurality of rotatable storage means for retaining said flexible elongated member, actuator means disposed adjacent said flexible elongated member for contacting actuating means thereon to read the coded commands thereon, said actuator means being connected to the steering control means for operating said means in a manner dictated by the coded commands.

15. The control apparatus of claim 14 wherein the flexible elongated member is a nylon tape.

16. The actuating means of claim 14 wherein the said actuating means are a plurality of rectangular members permanently fixed to said elongated member.

17. The actuating means of claim 16 wherein the rectangular members are substantially the same width and thickness and vary substantially in length.

18. The actuating means of claim 16 wherein the rectangular members disposed on said flexible elongated member form raised members.

25. A method of programmed steering and cutting blade control for self-contained lawn mowers comprising:

disposing a first actuator means comprising a plate and a plurality of switch means with said switch means away from a flexible elongated member;

rotating at substantially the same speed a plurality of storage means unreeling the flexible elongated member from a first storage means and reeling the flexible elongated member onto a second storage means;

actuating a second actuator means by raised members fixed to a surface of said flexible elongated member, containing and selectively energizing a plurality of switch means;

said raised members being arranged to code a predetermined series of steering commands.

26. The method of claim 25 wherein actuating the second actuator means comprises selectively actuating a left turn switch means, a right turn switch means or braking switch means.

27. A method of programmed steering and cutting blade control for self-contained lawn mowers of claim 25 comprising:

disposing the first actuator means comprising the plate and plurality of switch means with said switch means disposed toward the flexible elongated member;

actuating the first actuator means by raised members fixed to a surface of the flexible elongated member contacting switch means attached to said plate, said raised members being arranged to code a predetermined series of cutting blade commands.

28. The method of claim 27 wherein actuating said second actuator means comprises selectively actuating a left turn switch means, a right turn switch means or braking switch means.

29. The method of claim 27 wherein actuating said first actuator means comprises selectively deactuating first left cutting blade or a second right cutting blade.

30. A method of programmed steering and cutting blade control for self-contained lawn mowers of claim 25 having one or a plurality of cutting blades set at a first height;

cutting along a first preplanned route selectively energizing and de-energizing the cutting blades and discharging grass cut to either side;

completing a first cut along the preplanned route, changing the condition of the cutting blades and cutting along a second preplanned route cutting at a second cutting blade height;

completing a second cut along a second preplanned route selectively energizing and de-energizing the cutting blades and discharging grass cut to either side.

31. A method of programmed steering and cutting blade control for self-contained lawn mowers of claim 30 comprising setting the cutting blades at a height and cutting along a preplanned route discharging grass cut to either side.

32. The method of claim 25 further comprising:

driving a first gear means connected to a second gear means and a third gear means;

rotating the second gear means by rotating said first gear means thereby simultaneously rotating a one of said storage means connected to said second gear means;

rotating the third gear means by rotating the first gear means thereby simultaneously rotating a drive wheel means connected to said third gear means for drivingly moving said lawn mower.

33. The method of claim 32 wherein the first gear means rotates said second and said third gear means at a constant gear ratio.

34. The method of claim 33 wherein rotating said first gear means at a slower rotational speed will slow the rotational speed of said second and third gear means and increasing the rotational speed of said first gear means will increase the rotational speed of said second and third gear means according to the gear ratio between said first and second gear means and said first and third gear means.