Lawn sweeper

• US 10,196,786 B2
• Filed: 05/29/2015
• Issued: 02/05/2019
• Est. Priority Date: 04/28/2015
• Status: Active Grant

• Current Assignee: Remark Technologies, Inc.
• Original Assignee: Remark Technologies, Inc.
• Inventors: Kramer, Rodney M.
• Primary Examiner(s): Chin, Randall
• Application Number:
  US14/725,907
• Publication Number:
  US 20160316636A1
• Time in Patent Office: 1,348 Days
• Field of Search: 15 791, 15 792, 15 79, 15 82, 15 83
• CPC Class Codes: A01G 20/43 for sweeping, collecting or disintegrating lawn debris
• CPC Class Codes: A46B 13/02 power-driven carriers
• CPC Class Codes: E01H 1/04 taking- up the sweepings, e.g. for collecting, for loading with dust collector; E01H1/0854 takes precedence; suction machines with brushes E01H1/0845, E01H1/0872; taking- up devices with other mechanical loosening instruments E01H1/106
• CPC Class Codes: E01H 1/045 the loading means being a rotating brush with horizontal axis E01H1/042 takes precedence
• CPC Class Codes: E01H 1/047 Collecting apparatus characterised by the hopper or by means for unloading the hopper
• CPC Class Codes: E01H 1/05 with driven brushes E01H1/04 takes precedence rotary brushes for snow removal E01H5/092

Abstract

In accordance with one aspect, a lawn sweeper for being towed by a lawn tractor including a body, a rotatable brush mounted to the body, and a motor for rotating the brush independently of the rotation of at least one wheel of the lawn sweeper. The lawn sweeper further includes a remote control for being operated by a user of the lawn tractor to control the motor. In another aspect, a lawn sweeper having a pair of wheels rotatable about a wheel axis, a body shiftable between raised and lowered positions relative to the wheels, and brush mounted to the body and rotatable about a brush axis. The brush axis is substantially vertically aligned with the wheel axis when the body is in the raised position and the lowered position.

Claims

1. A lawn sweeper for being towed by a lawn tractor and removing material from a surface along which the lawn tractor is driven, the lawn sweeper comprising:

a body having a tongue for being connected to the lawn tractor;

at least one wheel connected to the body for rolling along the surface;

a rotatable brush mounted to the body for removing material from the surface;

a container pivotally connected to the body for collecting material removed from the surface by the rotatable brush, the container having an operating orientation with the container arranged to receive material from the brush and being pivotal upwardly away from the operating orientation to an inverted, discharge orientation that permits the material to fall out of the container;

an electric motor mounted to the body for rotating the brush independently of the rotation of the at least one wheel;

an elongated electrical connector having opposite end portions with one end portion coupled to the electric motor and the other end portion configured to be releasably connected to an electrical system of the lawn tractor to provide power to the motor;

a remote control of the electrical connector intermediate the end portions thereof, the remote control configured to be manipulated by a user on the lawn tractor to control power through the electrical connector to the motor;

a flexible, elongate actuator connected to the container and including a handle portion operable to be pulled to cause the container to pivot from the operating orientation to the discharge orientation.

2. The lawn sweeper of claim 1 wherein the remote control includes a switch of the electrical connector.

3. The lawn sweeper of claim 1 in combination with a lawn tractor for towing the lawn sweeper.

4. The lawn sweeper and lawn tractor of claim 3 wherein the lawn tractor has a seat and the remote control is arranged to be operated by a user riding in the seat.

5. The lawn sweeper of claim 1 further comprising a gear belt or chain operably connecting the motor and the brush.

6. The lawn sweeper of claim 1 wherein the brush is rotatable about a brush axis and the motor has a rotatable drive shaft operably coupled to the brush by a flexible drive member;

and

a motor mount of the body permits pivoting of the motor and drive shaft thereof about an adjustment axis that extends substantially parallel to the brush axis to adjust tension in the flexible drive member.

7. The lawn sweeper of claim 1 wherein the remote control has a base for being mounted near a footrest of the lawn tractor and a button supported by the base that can be pressed by the user to control the motor.

8. The lawn sweeper of claim 1 wherein the at least one wheel comprises only two wheels connected to the body.

9. A lawn sweeper comprising:

a pair of wheels;

a body shiftable between raised and lowered positions relative to the wheels;

a brush mounted to the body and rotatable about a brush axis;

a motor mounted to the body and operably coupled to the brush for rotating the brush about the brush axis;

a basket supported by the body for receiving material swept up by the brush;

a support having the wheels rotatably mounted thereto so that the wheels are rotatable around a common wheel axis;

a pivot connection between the support and the body at a fixed location of the body, the pivot connection defining a pivot axis for the support that is spaced from the brush axis;

the support being configured to pivot relative to the wheel axis and shift the body and brush mounted thereto between the raised and lowered positions with pivoting of the support about the pivot axis, the brush axis being spaced from the wheel axis by a variable distance as the body and brush mounted thereto shift between the raised and lowered positions.

10. The lawn sweeper of claim 9 wherein the fixed location of the body includes a pair of fixed locations and the support includes a pair of pivot arms, each pivot arm having a pivot portion pivotally connected to the body at one of the fixed locations and a wheel support portion to which one of the wheels is mounted spaced from the pivot portion.

11. The lawn sweeper of claim 9 wherein the body includes a housing for the rotatable brush with lateral side portions on opposite ends of the brush and the pivot connection between the support and the body includes a pivot connection at each of the lateral side portions of the housing.

12. The lawn sweeper of claim 9 wherein the pivot axis for the support extends substantially parallel to the brush axis and the wheel axis.

13. The lawn sweeper of claim 12 wherein the body and the support separate the brush axis from the pivot axis and the wheel axis from the pivot axis by substantially same distance.

14. The lawn sweeper of claim 9 wherein the fixed location of the body includes a pair of fixed locations of the body and the support includes a pair of arm portions pivotally connected to the body at the fixed locations and a cross member connecting the arm portions to pivot the arm portions together relative to the body.

15. The lawn sweeper of claim 14 further comprising an adjustable linkage connecting the cross member to the body for selectively inhibiting pivoting of the arm portions relative to the body.

16. The lawn sweeper of claim 9 wherein the body includes a tongue for connecting the body to a lawn tractor.

17. The lawn sweeper of claim 16 in combination with a lawn tractor.

18. The lawn sweeper of claim 9 wherein the brush axis is spaced from the wheel axis by a first distance with the body in the raised position and the brush axis is spaced from the wheel axis by a different, second distance with the body in the lowered position.

19. A lawn sweeper for removing material from a surface, the lawn sweeper comprising:

a pair of wheels rotatable about a common wheel axis;

a body shiftable between raised and lowered positions relative to the wheels;

a brush mounted to the body and rotatable about a brush axis extending parallel to the wheel axis, the brush axis being substantially vertically aligned with the wheel axis with the body in the raised position and the lowered position;

a motor mounted to the body and operably coupled to the brush for rotating the brush about the brush axis;

a basket supported by the body for receiving material swept up by the brush from the surface;

a support having the wheels rotatably mounted thereto;

a pivot connection between the support and the body at fixed location of the body, the pivot connection defining a pivot axis for the support that is laterally spaced relative to the brush axis; and

the support being configured to pivot about the wheel axis and shift the body and brush mounted thereto between the raised and lowered positions relative to the wheels with pivoting of the support about the pivot axis, the brush axis being spaced from the wheel axis by a variable distance as the body and brush mounted thereto shift between the raised and lowered positions.

20. The lawn sweeper of claim 19 wherein the brush axis is above the wheel axis with the body in the raised position and the brush axis is below the wheel axis with the body in the lowered position.

21. The lawn sweeper of claim 19 wherein the brush axis travels along an arc as the body shifts between the raised and lowered positions.

22. The lawn sweeper of claim 21 wherein the arc intersects the wheel axis as the body shifts between the raised and lowered positions so that the brush axis and wheel axis are coaxial with the brush axis at a predetermined position along the arc.

23. The lawn sweeper of claim 19 wherein the brush axis is spaced from the wheel axis by a first distance with the body in the raised position and the brush axis is spaced from the wheel axis by a different, second distance with the body in the lowered position.

24. A sweeper for removing material from a surface, the sweeper comprising:

a body;

a pair of wheels connected to the body;

a brush rotatable relative to the body for removing material from a surface with rotation of the brush;

a container for receiving material removed from the surface by the brush and being pivotally supported by the body, the container being pivotal upwardly away from the brush from an operating orientation with the container arranged to receive material from the brush to an inverted, discharge orientation that permits the material to fall out of the container;

a flexible, elongate actuator for pivoting the container;

a handle end portion of the elongate actuator for being pulled;

an anchor end portion of the elongate actuator fixed to the body and spaced from the handle end portion along the elongate actuator;

an intermediate portion of the elongate actuator intermediate the handle end portion and the anchor end portion, the intermediate portion being looped around a redirecting member connected to the container and including a first length extending between the anchor end portion and the redirecting member and a second length extending between the redirecting member and the handle end portion, the elongate actuator permitting the handle end portion to be pulled which shortens the first length and lengthens the second length and causes pivoting of the container from the operating orientation to the discharge orientation while the anchor end portion remains stationary relative to the body;

a forward portion of the body configured to be connected to a vehicle; and

a riser upstanding from the forward portion of the body and configured to position the handle end portion of the elongate actuator spaced above the forward portion of the body and permit the handle end portion to be pulled to cause pivoting of the container from the operating orientation to the discharge orientation.

25. The sweeper of claim 24 wherein the redirecting member includes a pulley mounted to the container and configured to multiply the pulling force applied to the handle end portion of the elongate actuator.

26. The sweeper of claim 24 wherein the redirecting member includes a first pulley;

and

a second pulley mounted to the body for engaging the intermediate portion of the elongate actuator and providing a mechanical advantage to pivot the container from the operating orientation to the discharge orientation.

27. The sweeper of claim 24 wherein the forward portion of the body includes a tongue for being connected to a vehicle.

28. The sweeper of claim 24 further comprising a motor mounted to the body and operably coupled to the brush for rotating the brush relative to the body.

29. The sweeper of claim 24 wherein the redirecting member includes a first pulley;

a second pulley mounted to the body for engaging the second length of the intermediate portion of the elongate actuator;

a third pulley connected to the container for engaging the second length of the intermediate portion of the elongate actuator; and

a fourth pulley mounted to the body for engaging the second length of the intermediate portion of the elongate actuator,

wherein the second and third pulleys are intermediate the first and fourth pulleys along the elongate actuator.

30. The sweeper of claim 24 wherein the handle end portion of the elongate actuator includes a flexible member and a handle;

and

the riser includes an eyelet having an opening sized to permit the flexible member to extend therethrough and resist the handle from passing through the opening.

31. The sweeper of claim 24 wherein the flexible, elongate actuator includes a rope.