Lawn and garden chipper shredder vacuum apparatus

• US 5,231,827 A
• Filed: 11/21/1991
• Issued: 08/03/1993
• Est. Priority Date: 11/21/1991
• Status: Expired due to Term

• Current Assignee: Briggs & Stratton Power Products Group LLC (Briggs & Stratton Corporation)
• Original Assignee: Garden Way, Inc. (Stanley Black & Decker, Inc.)
• Inventors: Wicker, Charles C., Holt, Karl K., Connolly, Kevin J., Bingley, George W.
• Primary Examiner(s): MELIUS, TERRY L
• Application Number:
  US07/795,516
• Time in Patent Office: 621 Days
• Field of Search: 56/16.9, 56/1, 56/13.1, 56/13.4, 56/255, 56/295, 56/320.1, 56/320.2, 56/DIG. 8, 56/DIG. 9, 241/101.1, 241/101.7
• US Class Current: 56/13.1
• CPC Class Codes: A01G 20/47 Vacuum or blower devices
• CPC Class Codes: E01H 1/0836 Apparatus dislodging all of the dirt by suction liquids or semi-liquids E01H1/108; combined with loosening by blowing E01H1/0863; for cleaning rails E01H8/105, E01H8/125; removing snow by suction E01H5/106, E01H8/08; Suction nozzles independent suction nozzles in mechanical dislodging-cleaning devices E01H1/0827; suction and blowing nozzles E01H1/0863
• CPC Class Codes: Y10S 56/08 Air gathering
• CPC Class Codes: Y10S 56/09 Detachable implement

Abstract

Lawn and garden maintenance equipment for collecting and shredding debris and chipping branches is provided with a wheel-supported housing having a handle for guiding the apparatus, the housing having a substantially closed bottom wall below the blades and having a portion thereof providing an air and debris inlet opening, a motor mounted on the housing with a shaft extending into housing and supporting a disc for rotation with the shaft within said housing, the disc having a cutter on its top for slicing limbs and a slot adjacent said cutting means to permit sliced material to pass through the disc, downwardly extending blades mounted on the bottom of the disc move air and air entrained debris within the housing to an exit opening in said housing generally opposite the inlet for air and entrained debris, and a top opening in the housing is radially aligned with the cutter to accept limbs and the like to be fed through the opening to be engaged by the cutter.

Claims

1. Lawn and garden maintenance equipment for collecting and shredding debris as well as chipping branches and the like comprising:

a housing supported for movement on groud engaging wheels,

said housing having a top deck portion provided with depending exterior sidewalls extending downwardly from said deck portion and provided with upwardly extending sidewalls from said deck portion and forming the sidewalls of a work chamber;

a top closure for the work chamber;

drive means supported on the top closure, said drive means having a shaft rotating about a vertical axis and extending into said work chamber;

a disc mounted on said shaft for rotation therewith, said disc being disposed proximate to the top closure;

said disc having generally radially and downwardly extending air moving blades affixed thereto, the tips of said blades being circumferentially spaced from the sidewalls of the work chamber;

said disc having a slot extending inwardly of the disc circumference and a sharpened chipping blade mounted adjacent the trailing edge of the slot in the direction of rotation and on the top surface of the disc;

an aperture extending through the top closure of said work chamber and radially positioned to be vertically aligned with said chipper blade at least once each disc revolution;

a bottom closure for said housing engaging the lower edge of the depending sidewalls and secured thereto, said bottom closure substantially closing the housing bottom but being peripherally spaced from the depending sidewalls in one area to create an air and debris inlet opening adjacent the ground;

and an aperture formed in the work chamber as an exit opening for leaves and debris drawn through the inlet into the work chamber by rotation of the disc mounted blades and for the chips removed from twigs and limbs inserted into the upper surface aperture in said top closure.

2. The lawn and garden maintenance equipment of claim 1 wherein four wheels are supported adjacent the downwardly extending sidewalls of the housing and a handle is pivotally supported on the housing for guiding the equipment.

3. The lawn and garden maintenance equipment of claim 2 wherein a debris deflector is positioned in the exit opening and a bag is supported on the handle with the deflector forming the inlet to the bag and with the deflector arranged to deflect exiting debris material upwardly into the bag.

4. The lawn and garden maintenance equipment of claim 3 wherein a screen is removably mounted in the exit opening to assist in reducing the size of leaves exiting therethrough into the bag.

5. The lawn and garden maintenance equipment of claim 2 wherein an aperture is provided in the front depending sidewall said aperture being suitable to be closed by a removable plug and upon plug removal to accept a debris inlet hose and a removable closure is used to close the air and debris inlet opening when the inlet hose is in use.

6. The lawn and garden maintenance equipment of claim 3 wherein an aperture is provided in the front depending sidewall said aperture being suitable to be closed by a removable plug and upon plug removal to accept a debris inlet hose and a removable closure is used to close the air and debris inlet opening when the inlet hose is in use.

7. The lawn and garden maintenance equipment of claim 1 wherein the handle is pivotally mounted for movement into a forward position generally overlying the front of the machine and the exit opening is provided with a deflector to laterally direct air and debris leaving the exit opening thereby to permit use of the equipment as a wheeled blower.

8. The lawn and garden maintenance equipment of claim 6 wherein a screen is removably mounted in the exit opening to assist in reducing the size of leaves and debris exiting there through.

9. The lawn and garden maintenance equipment of claim 2 wherein a limb inlet chute extending generally upwardly is secured to the top closure of the work chamber in communication with the aperture formed therein to assist in feeding limbs and other debris into the apparatus to be chipped by the rotating blade on the disc in the work chamber.

10. The lawn and garden maintenance equipment of claim 3 wherein a limb inlet chute extending generally upwardly is secured to the top closure of the work chamber in communication with the aperture formed therein to assist in feeding limbs and other debris into the apparatus to be chipped by the rotating blade on the disc in the work chamber.

11. Lawn and garden maintenance equipment for collecting and shredding debris and chipping branches and the like comprising:

a housing;

drive means mounted on said housing and having a shaft extending into said housing for rotation about a vertical axis;

a disc mounted on said shaft for rotation therewith and positioned within said housing;

cutting means on the top of said disc for slicing limbs and a slot adjacent said cutting means to permit sliced material to pass through the disc;

blade means mounted on the bottom of said disc to move air and air entrained debris within said housing;

a bottom closure for said housing;

said closure having a portion thereof providing an air and debris inlet opening;

an aperture in said housing radially aligned with said cutting means for accepting limbs and the like to be fed through said housing to engage the cutting means;

an exit opening in said housing generally radially opposite the inlet for air and entrained debris;

and wheels to support said housing for movement along the ground.

12. The lawn and garden maintenance equipment of claim 11 wherein an aperture is provided in the front depending sidewall, said aperture being suitable to be closed by removable plug and upon plug removal to accept a debris inlet hose and a removable closure is used to close the air and debris inlet opening when the inlet hose is in use.

13. The lawn and garden maintenance equipment of claim 11 wherein a debris deflector is positioned in the exit opening and a bag is supported on the handle with the deflector forming the inlet to the bag and arranged to deflect material upwardly into the bag.

14. The lawn and garden maintenance equipment of claim 11 wherein the handle is pivotally mounted for movement into a forward position generally overlying the front of the machine and the exit opening is provided with a deflector to laterally direct air and debris leaving the exit opening thereby to permit use of the equipment as a wheeled blower.