US3840187A - Shredder mechanism and improvements therein - Google Patents

Shredder mechanism and improvements therein Download PDF

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Publication number
US3840187A
US3840187A US00335008A US33500873A US3840187A US 3840187 A US3840187 A US 3840187A US 00335008 A US00335008 A US 00335008A US 33500873 A US33500873 A US 33500873A US 3840187 A US3840187 A US 3840187A
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US
United States
Prior art keywords
blade
hub
shaft
cutter
blades
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00335008A
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English (en)
Inventor
J Brewer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GARBALIZER CORP
Original Assignee
GARBALIZER CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GARBALIZER CORP filed Critical GARBALIZER CORP
Priority to US00335008A priority Critical patent/US3840187A/en
Priority to CH1520273A priority patent/CH555195A/de
Priority to GB5047873A priority patent/GB1441783A/en
Priority to JP12712773A priority patent/JPS532503B2/ja
Priority to DE2357765A priority patent/DE2357765A1/de
Priority to FR7402442A priority patent/FR2218944B1/fr
Priority to CA192,165A priority patent/CA1018958A/en
Priority to US465898A priority patent/US3893635A/en
Application granted granted Critical
Publication of US3840187A publication Critical patent/US3840187A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • 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
    • B02C18/18—Knives; Mountings thereof
    • B02C18/182—Disc-shaped knives
    • B02C18/184—Disc-shaped knives with peripherally arranged demountable cutting tips or elements

Definitions

  • composite hub structure includes a series of hub sectors, generally two, which are bolted to ether at oppo- [211 Appl' 335008 site sides.
  • Cutter bar bases supporting gutter bars op eratively associated with the blades are raised at their [52 us. c1; 241/32, 241/191, 241/243, underneath dimension Such that centrifugal force will 241 294 cause debris hanging on to the blade assembly, ex- [51] Int. Cl.
  • blades are likewise affixed to the lower edges of the cutter bar structure gg z g such that should there be any remaining debris cling- 2 956 602 10/1960 Gronbergz: I: LII 124N243 ing to the blade structure Same will be Simply 9/1961 Kirchern 24]90 X brushed or sheared as the blade returns upwardly, rel- 3027925 4/1962 gronbergnn 214N190 X ative to its outer extrem1ty, into the region between 3,229,921 1/1966 Hess et al. 241/190 adjacent cutter bars. 3,708,127 1 I973 Brewer 24l/32 3,762,655 10i1973 Brewer 241/32 1 Clam" 6 Drawmg F'gures PATENIEU DC? 85314 1 W/w??? f w w FIG.3
  • the present invention relates to the industrial shredders such as shredders usable in reducing municipal waste, garbage and the like and, more particularly, to a shredder having a series of mutually spaced revolving blades, preferably arranged in a helical pattern about the axis of the revolving shaft associated with the several blade structures.
  • the blade assemblies are transversely pinned to hubs which are made up on the revolving shaft as by positioning keys.
  • Shear pins are used so as to provide a safety feature for the blades.
  • the hubs are uniquely designed so as to provide a tight take-up on the shaft as well as facilicate the slight clearance that might be desired relative to the blade structure such that the same will easily slip about the hub should shear pins become sheared as through overload.
  • the cutter bar structures are relieved along their lower margins such that as each blade assembly revolves, its tip will protrude downwardly beneath the lower contour of the cutter bar structures. In this way, material clinging to the blade will be freed from the constraining influence of the associated, mutually parallel cutter bar structures so that such material as clings to the blade will be thrown outwardly by a centrifugal force. Should any debris remain, then the same can be cut, or simply scraped from the revolving blades, such as by appropriate blade means as attached to the lower contour of the respective cutter bar structures.
  • a principal object of the present invention is to provide a new and improved shredder construction.
  • a further object is to provide, in a shredder construction having a series of revolving blades mounted upon a shaft, improved cutter bar structures which are relieved at their lower margins such that revolving blades will proceed downwardly beneath such contour, thereby enabling debris clinging to the blade to be thrown freely both from the blade and cutter bar structures.
  • a further object is to provide blade means attached to the lower contour of cutter bar such that, as the revolving blade assemblies proceed along their travel paths, any debris clinging to the blade past its lowermost point of travel will be cut, sheared or simply scraped from the blade assemblies, thereby preventing re-entrance of the material between adjacent cutter bar structures.
  • a further object is to provide a hub assembly that can be suitably tightened down upon the shaft of a shredder, keyed thereto, and yet adjustable as to normal friction forces or even clearance, relative to the respective blade assembly, to be relievably mounted thereto.
  • FIG. I is a fragmentary top plan of the structure of the present invention in a preferred embodiment and shows two of a series of blade assemblies with their cutter bars.
  • FIG. 2 is a transverse vertical section taken along the line 2-2 in FIG. 1. 1
  • FIG. 3 is an enlarged section taken along the line 3-3 of FIG. 2.
  • FIG. 4 is an enlarged section taken along the line 4-4 in FIG. 2.
  • FIG. 5 is an enlarged section taken along the line 55 of FIG. 2.
  • FIG. 6 is a plan view illustrated in section and taken along the line 6-6 in FIG. 2.
  • a blade assembly 10 includes a pair of blade halves 11 and 12 which may be identical in shape and secured together by bolts, B1, B2, and B3, at each of two places respectively.
  • Each of the blade assemblies will likewise include cutter blade segments 13 and 14 which are secured in place by screws 15 passing into drilled and taped apertures 16.
  • Apertures 17, 18, and 19 may be drilled and tapped, as well their counter-parts as at 21 and 22 by way of example, so that the entire blade assembly may be secured together.
  • the blade assembly is secured about and includes a hub assembly 23.
  • the latter is comprised of plural hub segments 24, in their assembly resembling a thickened washer having an inner peripheral groove 25, see FIGS. 2 and 4.
  • The-hub assembly 23 is secured by one or more keys 26 to revolving shaft 27.
  • Shaft 27 is driven by suitable drive means 28 such as a shaft extension via motor 29.
  • the latter may be bolted by bolts 30 to frame structures 31
  • the hub segments 24 may be designed to be semi-circles, with the two being secured together by a pair of bolts 31 and 32 and also bolt pair 33 and 34.
  • the hub assembly is pinned to the shaft as shown in FIG. 3 and, in addition, includes one or more shear pins 35, as seen in FIG. 5. Accordingly, in operation the structure as thus described provides a series of blade assemblies as at 10 and 10 in figure. Phantom line L illustrates, in conjunction with FIG. 1, that these blade assemblies are staggered, in fact, a
  • the blade combination is mounted upon the shaft and operates fully to cut or shear materials that drop into the hopper H as defined by structure 38. Should there be a jamming of the machine, as to particular blade assembly, then that blade assembly may easily revolve about its own hub assembly 23, this with a breaking of shear pin or pins 35 along one of its cutting planes P1 or P2 as seen in FIG. 5. The prior tightening of bolts 31-34 will allow clearance, as desired, to effect cutter blade slippage.
  • upstanding cutter-bar ribs 39 each having cutter bar segments 40.
  • the latter include recessed screws or bolts 41 which affix the blade segments to the cutter bar 39 by means of drilled and tapped apertures 42.
  • a cross structure at 43 may secure various ones of the respective cutter bars 39, see FIG. 1, in place. It is noted that there will be provided, for the concave, contoured portion 44 of each cutter bar 39, a relieved bottom surface 45 of the cutter bar such that the revolving blade will descend therebelow. This is so that any material sticking to the revolving blade assembly of the latter passes through the spaces S, will be thrown out by centrifugal force, as soon as the material reaches area C;
  • any slight particles or debris as might remain on the plate may be cut or wiped off as by the addition of a respective blade segment 47.
  • These are mounted by attachments 48 to drilled and tapped apertures 49 at each of the angulated surfaces 50 of the several cutter bar bases as at 39.
  • the revolving cutting blades cut or shear materials such as the same proceed downwardly to drop through the spaces S between the cutter bar bases and their cutter bar segments. Any material that chance to stick upon the blade assemblies will be thrown out by centrifugal force once the blade reaches area C. Should any .slight debris remain on the blade at this point, then the wiping or cutting blade at 47 will remove or cut the remaining materials.
  • Structure S includes a side plate 51 as well as central plate 52 mounted thereto by attachments 53. This structure may be utilized by journaling opposite ends of the shaft 27, and for directing the flow of materials downwardly along the arrow D, and so forth. An aperture as at 53' will be provided, of course, to allow passage for the shaft.
  • a shredder construction including, in combination, a shaft; a series of mutually spaced blade assemblies; plural, mutually spaced hub means keyed to said shaft, each of said hub means comprising plural arcuate segments each having a corresponding outer, peripheral groove, said grooves comprising a composite peripheral groove when said segments are assembled together; attachment means for securing together said segments and tightening the same together down onto said shaft, said blade assemblies being mounted to said hub means at said respective composite peripheral grooves; shear pin means for securing respective ones of said blade assemblies to said hub means, the interior of said blade means being dimensioned such that the frictional coaction of each of said blade means with said hub means is controlled by the tightening of said attachment means.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)
US00335008A 1973-02-23 1973-02-23 Shredder mechanism and improvements therein Expired - Lifetime US3840187A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00335008A US3840187A (en) 1973-02-23 1973-02-23 Shredder mechanism and improvements therein
CH1520273A CH555195A (de) 1973-02-23 1973-10-29 Zerkleinerungsvorrichtung.
GB5047873A GB1441783A (en) 1973-02-23 1973-10-30 Shredder
JP12712773A JPS532503B2 (de) 1973-02-23 1973-11-12
DE2357765A DE2357765A1 (de) 1973-02-23 1973-11-20 Vorrichtung zur zerkleinerung von abfallstoffen
FR7402442A FR2218944B1 (de) 1973-02-23 1974-01-24
CA192,165A CA1018958A (en) 1973-02-23 1974-02-11 Shredder mechanism and improvements therein
US465898A US3893635A (en) 1973-02-23 1974-05-01 Shredder structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00335008A US3840187A (en) 1973-02-23 1973-02-23 Shredder mechanism and improvements therein

Publications (1)

Publication Number Publication Date
US3840187A true US3840187A (en) 1974-10-08

Family

ID=23309844

Family Applications (1)

Application Number Title Priority Date Filing Date
US00335008A Expired - Lifetime US3840187A (en) 1973-02-23 1973-02-23 Shredder mechanism and improvements therein

Country Status (7)

Country Link
US (1) US3840187A (de)
JP (1) JPS532503B2 (de)
CA (1) CA1018958A (de)
CH (1) CH555195A (de)
DE (1) DE2357765A1 (de)
FR (1) FR2218944B1 (de)
GB (1) GB1441783A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957211A (en) * 1974-01-24 1976-05-18 Osaka Kiko Co., Ltd. Refuse disintegration device
US4059236A (en) * 1976-12-06 1977-11-22 Garbalizer Corporation Of America Shearing structure in materials reduction machinery
US4099678A (en) * 1977-05-31 1978-07-11 Garbalizer Machinery Corporation Shredder structure and improvements therein
US4205799A (en) * 1978-09-29 1980-06-03 Garbalizer Corporation Of America Shredding apparatus
US4349159A (en) * 1978-07-05 1982-09-14 Hardwick John P Shredding machines
US5004028A (en) * 1990-06-25 1991-04-02 Beloit Corporation Shear hub
US5052630A (en) * 1990-02-27 1991-10-01 Mac Corporation Method and apparatus to reduce material
US5950945A (en) * 1998-08-06 1999-09-14 The Monee Group, Ltd. Impact member for comminuter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9115990U1 (de) * 1991-12-23 1992-02-20 Gloria-Werke H. Schulte-Frankenfeld Gmbh & Co, 4724 Wadersloh Abfallzerkleinerer
DE9203029U1 (de) * 1992-03-07 1992-04-23 Höcker Polytechnik GmbH, 4517 Hilter Vorrichtung zum Zerkleinern von Hülsen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3671090A (en) * 1970-09-11 1972-06-20 Harold E Galanty Chopping machine
US3708127A (en) * 1971-04-01 1973-01-02 Garbalizer Corp Cutter and shearing mechanism

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3957211A (en) * 1974-01-24 1976-05-18 Osaka Kiko Co., Ltd. Refuse disintegration device
US4059236A (en) * 1976-12-06 1977-11-22 Garbalizer Corporation Of America Shearing structure in materials reduction machinery
US4099678A (en) * 1977-05-31 1978-07-11 Garbalizer Machinery Corporation Shredder structure and improvements therein
US4349159A (en) * 1978-07-05 1982-09-14 Hardwick John P Shredding machines
US4205799A (en) * 1978-09-29 1980-06-03 Garbalizer Corporation Of America Shredding apparatus
US5052630A (en) * 1990-02-27 1991-10-01 Mac Corporation Method and apparatus to reduce material
US5004028A (en) * 1990-06-25 1991-04-02 Beloit Corporation Shear hub
US5950945A (en) * 1998-08-06 1999-09-14 The Monee Group, Ltd. Impact member for comminuter
WO2000007729A1 (en) * 1998-08-06 2000-02-17 The Monee Group, Ltd. Impact member for comminuter

Also Published As

Publication number Publication date
JPS50452A (de) 1975-01-07
DE2357765A1 (de) 1974-08-29
FR2218944A1 (de) 1974-09-20
CH555195A (de) 1974-10-31
CA1018958A (en) 1977-10-11
FR2218944B1 (de) 1978-01-06
GB1441783A (en) 1976-07-07
JPS532503B2 (de) 1978-01-28

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