US3870239A - Detachable loading device for garden shredder - Google Patents

Detachable loading device for garden shredder Download PDF

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Publication number
US3870239A
US3870239A US223140A US22314072A US3870239A US 3870239 A US3870239 A US 3870239A US 223140 A US223140 A US 223140A US 22314072 A US22314072 A US 22314072A US 3870239 A US3870239 A US 3870239A
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United States
Prior art keywords
receptacle
base
side wall
ground
cover plate
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Expired - Lifetime
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US223140A
Inventor
Robert D Lautzenheiser
Jr Howard M Ullman
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RED CROSS Manufacturing CORP
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RED CROSS Manufacturing CORP
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Priority to US223140A priority Critical patent/US3870239A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/002—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees for comminuting plant waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2291—Feed chute arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • B02C2201/066—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for garden waste

Definitions

  • the present invention is directed to new and useful improvements in shredders of the type used for shredding material such as leaves, prunings, etc., and is particularly concerned with improvements which facilitate loading of such shredders.
  • the major purposes of the present invention are to provide shredders of the foregoing class with simple, economical and easily handled load ramp facilities, to enable material to be swept into the shredder inlet opening, to provide facilities in such ramp, enabling simple coupling of the ramp to the inlet opening of a shredding compartment, while at the same time forming the ramp in a manner which minimizes possibilities of persons accidentally placing a hand or foot within the inlet.
  • FIG. 1 is a side view illustrating the present invention
  • FIG. 2 is an enlarged perspective view of a loading ramp illustrated in FIG. 1;
  • FIG. 3 is an exploded view illustrating a selective use of the loading ramp of FIGS. 1 and 2 and a feed hopper;
  • FIG. 4 is a detail view of a coupling.
  • the numeral generally designates a shredding housing having a pair of supporting wheels 11 and a support stand 12 of the type described in my U.S'. Pat. No. 3,593,930, the disclosure of which is herein incorporated by reference.
  • the housing 10 supports an engine 13 on the upper wall thereof so as to rotate plural shredding blades 14 around a generally vertical axis within the housing.
  • the housing 10 includes an upwardly open inlet 15 at one side of the arc developed by the blades 14 during rotation thereof, and a laterally directed outlet 16 which is separated from the inlet by a partition wall structure 17.
  • the housing is defined by a bottom wall and a cylindrical or circular side wall as well as a top wall or cover plate overlying the side wall to define a shredding chamber.
  • the housing or base thus defined has a shallow cup-shaped form.
  • Blades 14 define a rotor structure carried by the shaft of the engine, which shaft extends into the base or shredding compartment.
  • a plurality of stationary breaker members or bars 14a are located within the chamber at spaced positions on the side wall of the base or housing. These breaker members have openings or notches 14b therein for registering with the tip portions of the blades. The tip portions of the blades extend to the region of the side wall.
  • the inlet 15 defines a receptacle for receiving material to be shredded.
  • Outlet 16 is defined by one portion of the side wall of the base, and part of the bottom wall and part of the top wall as well as the partition wall 17. The outlet thus provides a discharge conduitpenetrating the side wall for forcible discharge of the shredded material.
  • the inlet includes a rear wall 18 which slopes downwardly between wall 17 and a side wall 17a and toward the blade area so that materials fed downwardly against the wall 18 are directed more or less radially inwardly with respect to the axis of rotation of the blades 14.
  • the top of the outlet passage is closed by a wall 19.
  • a reinforcing bar 19a extends across the wall 19 and is fixed to this wall and the opposite side wall.
  • the shredder includes a feed hopper 20 which has an outlet opening at the bottom thereof generally matching the inlet opening 15. Hopper 20 is fixed in position over the inlet opening through use of a laterally extended bracket 21 which is adapted to fit snugly against the wall 19. An aperture 22 in the bracket fits over abolt 23 and a nut 23a is used to hold the bracket 21 snugly against the top wall 19.
  • the other side of the hopper includes a flange 24 which is notched as at 25 to receive a locator stud 250 which is carried by the housing alongside the inlet.
  • a loading ramp is provided for use with the shredding housing in lieu of the feed hopper 20.
  • the loading ramp is defined by a hood section generally designated at 26 and a feed chute section generally designated at 27.
  • the hood section is defined by spaced side walls 28 and 29, a top wall 30, and a forward wall 31.
  • the bottom of the hood section is open as is the space between the side walls 28 and 29 opposite to front wall 31.
  • Bracket 32 extends laterally from one side wall 28 so as to fit over the bolt 23 and be positioned snugly against the top wall 19 of the outlet 16. Bracket 32 includes an aperture 33 to receive bolt 23.
  • the other side wall of the hood section includes a lug or bracket 34 which is adapted to receive lug 26 to secure the hood section in position over the inlet 15 to the shredder.
  • the feed chute section 27 is defined by abottom wall 36 and spaced side walls 37 and 38.
  • the bottom wall 36 diverges or flares outwardly from the hood section as viewed from above, as do the side walls 37 and 38.
  • the bottom wall 36 and side walls 37 and 38 are formed from a single piece of metal.
  • the side walls 37 and 38 have a tapered form, as is seen in the drawings, with their ends adjacent to the side walls 27 and 28 of the hood section generally matching the height of these walls.
  • the upper rims 37a and 38a of the side walls 37 and 38 may be turned as shown.
  • the feed chute section is fixed to the hood section 26 by means of bolts 39.
  • the feed chute section is formed on an angle with the hood section so that the outer end 40 of the feed chute section may rest upon the ground in use.
  • Top wall 30 includes a downwardly extending lip or shield 300 between the side walls 37 and 38.
  • the loading ramp enables a convenient sweep-in loading facility for the shredder. Leaves or the like may be swept from the ground and up the ramp through the hood section and into the inlet opening 15 of the shredder. The leaves and other debris may also be dumped into the loading ramp from whence they may be moved through the hood section and into the I inlet opening through the hood section is above the level of the uppermost blade within the shredder which is an additional safety precaution.
  • the loading ramp when coupled to the shredder, may be utilized as a handle for elevating the support stand 12 to enable transport of the shredder.
  • a shredding and bagging machine for yard usage, the combination comprising a base of shallow cup shape having a bottom wall and a circular side wall defining a shredding chamber, transport means for supporting the base in horizontal position slightly upraised above the ground, a cover plate fitted to the base for enclosing the same, an engine mounted on the cover plate and having a drive shaft which extends into the base, a rotor mounted on the shaft including a blade having tip portions extending to the region of the side wall, a plurality of stationary breaker members at spaced positions on the side wall and having horizontal notches formed therein for registering with the tip portions of the blade, means including a discharge conduit penetrating the side wall for forcible discharge of the shredded material, the cover plate having a receptacle for feeding material into the chamber, a ramp of flaring construction having side walls defining a narrow upper end and a wide lower end, and means for securing the ramp with respect to the receptacle so that the narrow end communicates with the re
  • a shredding and bagging machine for yard usage, the combination comprising a base defining a shredding chamber, transport means for supporting the base in horizontal position slightly upraised above the ground, an engine mounted on the base and having a drive shaft which extends into the base, shredding means in said chamber operable by said shaft, means including a discharge conduit in communication with said shredding chamber for forcible discharge of the shredded material, the base having a receptacle for feeding material into the chamber, a ramp of flaring construction having side walls defining a narrow upper end and a wide lower end, and means for securing the ramp with respect to the receptacle so that the narrow end communicates with the receptacle and so that the wide end extends downwardly at a shallow angle into engagement with the ground thereby permitting leaves or the like lying on the ground to be swept upwardly into the receptacle.

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

A detachable loading ramp for shredders of the type used for lawn materials.

Description

United States Patent Lautzenheiser et al.
l l Mar. 11, 1975 DETACHABLE LOADING DEVICE FOR GARDEN SHREDDER Inventors: Robert D. Lautzenheiser; Howard M. Ullman, Jr., both of Bluffton, lnd.
The Red Cross Manufacturing Corporation, Bluffton, lnd.
Filed: Feb. 3, 1972 Appl. No.: 223,140
Assignee:
US. Cl. 241/186 R, 24l/l0l.7 Int. Cl. B02c 13/16 Field of Search 241/l0l.7, 186 R, 188 R,
[56] References Cited UNITED STATES PATENTS 3,448,932 6/l969 Pmhl 24l/l88 R X 3,674,220 7/1972 Tuppcr 241/186 R 2/l973 Batcman 241/186 R Primary ExaminerGranville Y. Custer, Jr. Attorney, Agent, or Firm-Mann, Brown, McWilliams & Bradway [57] ABSTRACT A detachable loading ramp for shredders of the type used for lawn materials.
2 Claims, 4 Drawing Figures DETACHABLE LOADING DEVICE FOR GARDEN SHREDDER The present invention is directed to new and useful improvements in shredders of the type used for shredding material such as leaves, prunings, etc., and is particularly concerned with improvements which facilitate loading of such shredders.
The major purposes of the present invention are to provide shredders of the foregoing class with simple, economical and easily handled load ramp facilities, to enable material to be swept into the shredder inlet opening, to provide facilities in such ramp, enabling simple coupling of the ramp to the inlet opening of a shredding compartment, while at the same time forming the ramp in a manner which minimizes possibilities of persons accidentally placing a hand or foot within the inlet.
These and other purposes will become more apparent in the course of the ensuing specification and claims, when taken with the accompanying drawings, in which:
FIG. 1 is a side view illustrating the present invention;
FIG. 2 is an enlarged perspective view of a loading ramp illustrated in FIG. 1;
FIG. 3 is an exploded view illustrating a selective use of the loading ramp of FIGS. 1 and 2 and a feed hopper; and
FIG. 4 is a detail view of a coupling.
Like elements are designated by like characters throughout the specification and drawings.
Referring specifically now to the drawings, and in the first instance to FIG. 1, the numeral generally designates a shredding housing having a pair of supporting wheels 11 and a support stand 12 of the type described in my U.S'. Pat. No. 3,593,930, the disclosure of which is herein incorporated by reference. The housing 10 supports an engine 13 on the upper wall thereof so as to rotate plural shredding blades 14 around a generally vertical axis within the housing. As described in said patent, the housing 10 includes an upwardly open inlet 15 at one side of the arc developed by the blades 14 during rotation thereof, and a laterally directed outlet 16 which is separated from the inlet by a partition wall structure 17. As disclosed in said patent, the housing is defined by a bottom wall and a cylindrical or circular side wall as well as a top wall or cover plate overlying the side wall to define a shredding chamber. The housing or base thus defined has a shallow cup-shaped form. Blades 14 define a rotor structure carried by the shaft of the engine, which shaft extends into the base or shredding compartment. In this type of shredder a plurality of stationary breaker members or bars 14a are located within the chamber at spaced positions on the side wall of the base or housing. These breaker members have openings or notches 14b therein for registering with the tip portions of the blades. The tip portions of the blades extend to the region of the side wall. The inlet 15 defines a receptacle for receiving material to be shredded. Outlet 16 is defined by one portion of the side wall of the base, and part of the bottom wall and part of the top wall as well as the partition wall 17. The outlet thus provides a discharge conduitpenetrating the side wall for forcible discharge of the shredded material.
The inlet includes a rear wall 18 which slopes downwardly between wall 17 and a side wall 17a and toward the blade area so that materials fed downwardly against the wall 18 are directed more or less radially inwardly with respect to the axis of rotation of the blades 14. The top of the outlet passage is closed by a wall 19. A reinforcing bar 19a extends across the wall 19 and is fixed to this wall and the opposite side wall.
As described in said patent, the shredder includes a feed hopper 20 which has an outlet opening at the bottom thereof generally matching the inlet opening 15. Hopper 20 is fixed in position over the inlet opening through use ofa laterally extended bracket 21 which is adapted to fit snugly against the wall 19. An aperture 22 in the bracket fits over abolt 23 and a nut 23a is used to hold the bracket 21 snugly against the top wall 19. The other side of the hopper includes a flange 24 which is notched as at 25 to receive a locator stud 250 which is carried by the housing alongside the inlet.
In accordance with the present invention, a loading ramp is provided for use with the shredding housing in lieu of the feed hopper 20. The loading ramp is defined by a hood section generally designated at 26 and a feed chute section generally designated at 27.
The hood section is defined by spaced side walls 28 and 29, a top wall 30, and a forward wall 31. The bottom of the hood section is open as is the space between the side walls 28 and 29 opposite to front wall 31.
A bracket 32 extends laterally from one side wall 28 so as to fit over the bolt 23 and be positioned snugly against the top wall 19 of the outlet 16. Bracket 32 includes an aperture 33 to receive bolt 23. The other side wall of the hood section includes a lug or bracket 34 which is adapted to receive lug 26 to secure the hood section in position over the inlet 15 to the shredder.
The feed chute section 27 is defined by abottom wall 36 and spaced side walls 37 and 38. The bottom wall 36 diverges or flares outwardly from the hood section as viewed from above, as do the side walls 37 and 38. The bottom wall 36 and side walls 37 and 38 are formed from a single piece of metal.
The side walls 37 and 38 have a tapered form, as is seen in the drawings, with their ends adjacent to the side walls 27 and 28 of the hood section generally matching the height of these walls. The upper rims 37a and 38a of the side walls 37 and 38 may be turned as shown. The feed chute section is fixed to the hood section 26 by means of bolts 39.
The feed chute section is formed on an angle with the hood section so that the outer end 40 of the feed chute section may rest upon the ground in use.
Top wall 30 includes a downwardly extending lip or shield 300 between the side walls 37 and 38.
Side walls 28 and 29 extend downwardly beneath the level of the brackets, 32 and lug 34 and below the bottom of the trough wall 36 adjacent thereto. This provides depending guides as at 28a to fit within the inlet opening and adjacent the walls 17 and 17a.
As formed, the loading ramp enables a convenient sweep-in loading facility for the shredder. Leaves or the like may be swept from the ground and up the ramp through the hood section and into the inlet opening 15 of the shredder. The leaves and other debris may also be dumped into the loading ramp from whence they may be moved through the hood section and into the I inlet opening through the hood section is above the level of the uppermost blade within the shredder which is an additional safety precaution.
The loading ramp, when coupled to the shredder, may be utilized as a handle for elevating the support stand 12 to enable transport of the shredder.
I claim:
1. In a shredding and bagging machine for yard usage, the combination comprising a base of shallow cup shape having a bottom wall and a circular side wall defining a shredding chamber, transport means for supporting the base in horizontal position slightly upraised above the ground, a cover plate fitted to the base for enclosing the same, an engine mounted on the cover plate and having a drive shaft which extends into the base, a rotor mounted on the shaft including a blade having tip portions extending to the region of the side wall, a plurality of stationary breaker members at spaced positions on the side wall and having horizontal notches formed therein for registering with the tip portions of the blade, means including a discharge conduit penetrating the side wall for forcible discharge of the shredded material, the cover plate having a receptacle for feeding material into the chamber, a ramp of flaring construction having side walls defining a narrow upper end and a wide lower end, and means for securing the ramp with respect to the receptacle so that the narrow end communicates with the receptacle and so that the wide end extends downwardly at a shallow angle into engagement with the ground thereby permitting leaves or the like lying on the ground to be swept upwardly into the receptacle.
2. In a shredding and bagging machine for yard usage, the combination comprising a base defining a shredding chamber, transport means for supporting the base in horizontal position slightly upraised above the ground, an engine mounted on the base and having a drive shaft which extends into the base, shredding means in said chamber operable by said shaft, means including a discharge conduit in communication with said shredding chamber for forcible discharge of the shredded material, the base having a receptacle for feeding material into the chamber, a ramp of flaring construction having side walls defining a narrow upper end and a wide lower end, and means for securing the ramp with respect to the receptacle so that the narrow end communicates with the receptacle and so that the wide end extends downwardly at a shallow angle into engagement with the ground thereby permitting leaves or the like lying on the ground to be swept upwardly into the receptacle.

Claims (2)

1. In a shredding and bagging machine for yard usage, the combination comprising a base of shallow cup shape having a bottom wall and a circular side wall defining a shreddiNg chamber, transport means for supporting the base in horizontal position slightly upraised above the ground, a cover plate fitted to the base for enclosing the same, an engine mounted on the cover plate and having a drive shaft which extends into the base, a rotor mounted on the shaft including a blade having tip portions extending to the region of the side wall, a plurality of stationary breaker members at spaced positions on the side wall and having horizontal notches formed therein for registering with the tip portions of the blade, means including a discharge conduit penetrating the side wall for forcible discharge of the shredded material, the cover plate having a receptacle for feeding material into the chamber, a ramp of flaring construction having side walls defining a narrow upper end and a wide lower end, and means for securing the ramp with respect to the receptacle so that the narrow end communicates with the receptacle and so that the wide end extends downwardly at a shallow angle into engagement with the ground thereby permitting leaves or the like lying on the ground to be swept upwardly into the receptacle.
1. In a shredding and bagging machine for yard usage, the combination comprising a base of shallow cup shape having a bottom wall and a circular side wall defining a shreddiNg chamber, transport means for supporting the base in horizontal position slightly upraised above the ground, a cover plate fitted to the base for enclosing the same, an engine mounted on the cover plate and having a drive shaft which extends into the base, a rotor mounted on the shaft including a blade having tip portions extending to the region of the side wall, a plurality of stationary breaker members at spaced positions on the side wall and having horizontal notches formed therein for registering with the tip portions of the blade, means including a discharge conduit penetrating the side wall for forcible discharge of the shredded material, the cover plate having a receptacle for feeding material into the chamber, a ramp of flaring construction having side walls defining a narrow upper end and a wide lower end, and means for securing the ramp with respect to the receptacle so that the narrow end communicates with the receptacle and so that the wide end extends downwardly at a shallow angle into engagement with the ground thereby permitting leaves or the like lying on the ground to be swept upwardly into the receptacle.
US223140A 1972-02-03 1972-02-03 Detachable loading device for garden shredder Expired - Lifetime US3870239A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360166A (en) * 1979-08-29 1982-11-23 Firma Cornes & Co. Ohg Motor-driven shredding apparatus particularly for garden waste
EP0983796A1 (en) * 1998-09-02 2000-03-08 Jozef Beauprez Wood shredder
GB2399763A (en) * 2003-03-28 2004-09-29 Martin Wyeth Ball feeder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448932A (en) * 1962-07-23 1969-06-10 Robert F Prohl Waste disposal devices
US3674220A (en) * 1970-12-07 1972-07-04 Omark Industries Inc Chipper shredder
US3716089A (en) * 1971-10-07 1973-02-13 J Bateman Feeding arrangement for shredding and bagging device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448932A (en) * 1962-07-23 1969-06-10 Robert F Prohl Waste disposal devices
US3674220A (en) * 1970-12-07 1972-07-04 Omark Industries Inc Chipper shredder
US3716089A (en) * 1971-10-07 1973-02-13 J Bateman Feeding arrangement for shredding and bagging device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360166A (en) * 1979-08-29 1982-11-23 Firma Cornes & Co. Ohg Motor-driven shredding apparatus particularly for garden waste
EP0983796A1 (en) * 1998-09-02 2000-03-08 Jozef Beauprez Wood shredder
GB2399763A (en) * 2003-03-28 2004-09-29 Martin Wyeth Ball feeder
US20040192456A1 (en) * 2003-03-28 2004-09-30 Martin Wyeth Ball feeder
GB2399763B (en) * 2003-03-28 2006-05-10 Martin Wyeth Ball feeder
US7182696B2 (en) 2003-03-28 2007-02-27 Martin Wyeth Ball feeder

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