US3384311A - Wood chipper - Google Patents

Wood chipper Download PDF

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Publication number
US3384311A
US3384311A US568002A US56800266A US3384311A US 3384311 A US3384311 A US 3384311A US 568002 A US568002 A US 568002A US 56800266 A US56800266 A US 56800266A US 3384311 A US3384311 A US 3384311A
Authority
US
United States
Prior art keywords
disc
chips
outlet
wall section
arcuate wall
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
US568002A
Other languages
English (en)
Inventor
Henrik J Eklund
Dean W Shields
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.)
Beloit Corp
Original Assignee
Beloit 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 Beloit Corp filed Critical Beloit Corp
Priority to US568002A priority Critical patent/US3384311A/en
Priority to FI671742A priority patent/FI44080C/fi
Priority to GB29539/67A priority patent/GB1119457A/en
Priority to NO00169028A priority patent/NO128803B/no
Priority to ES343694A priority patent/ES343694A1/es
Priority to SE10824/67*A priority patent/SE315186B/xx
Priority to FR5145A priority patent/FR1532796A/fr
Priority to DE1653063A priority patent/DE1653063C3/de
Application granted granted Critical
Publication of US3384311A publication Critical patent/US3384311A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B55/00—Cabinets, racks or shelf units, having essential features of rigid construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/14—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
    • B62B3/18—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys nestable by means of pivoted supports or support parts, e.g. baskets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
    • B62B2202/30—Furniture

Definitions

  • This invention relates to a wood chipper and has for an object the provision of apparatus in which the chips are removed continuously from the chipper as they are cut by -a combination of forces consisting of the kinetic energy possessed by the moving chips in a chip receiving chamber, and the blowing action of a moving stream of air adjacent the chips within the chip receiving chamber, and the blowing action of a blower which communicates with a plenum chamber that surrounds the chip receiving chamber and delivers air into engagement with the moving stream of chips as the chips are introduced into a discharge conduit.
  • a more specific object of our invention is to provide a rotary wood chipper in which an angular portion thereof, as viewed in the direction of rotation, serves as a blower for introducing air into the chip receiving chamber and the plenum chamber while another angular portion thereof performs the function of a chipper.
  • a further object of our invention is to provide a wood chipper of the character designated in which an effective blower and a plenum chamber therefor is provided outwardly of the chip receiving chamber and is so constructed that the chips do not enter the plenum chamber and are not engaged by the air conveyed therethrough until the chips enter the discharge conduit for the apparatus.
  • a still further object of our invention is to provide a wood chipper of the character designated which shall be extremely simple of construction, economical of manufacture and one in which all of the air and chip conveying blades are mounted at one side of a disc-like member which is positioned inwardly of an arcuate wall that separates the chip receiving chamber from the plenum chamber.
  • our improved wood chipper embodies a rotary disc having angularly spaced knives and angularly spaced passageways therethrough, together with means to feed wood to one side of the disc whereby the wood is cut into chips which pass through the passageways to the other side of the disc.
  • An outer housing surrounds said other side of the disc and is spaced radially and outwardly from the periphery of the disc.
  • An arcuate wall section surrounds a portion of said other side of the disc inwardly of the outer housing to thus define a chip receiving chamber inwardly of the arcuate wall section and a plenum chamber between the arcuate wall section and the outer housing.
  • Angularly spaced blades are carried by the disc in position to rotate within the arcuate wall section to convey chips through the chip receiving chamber and introduce air into the chip receiving chamber and the plenum chamber.
  • Discharge outlets are provided for the chip receiving chamber and the plenum chamber whereby the air discharged from the plenum chamber engages the moving stream of chips discharged from the chip receiving chamber to thus aid in removing the chips from the chipper as they are cut, thereby eliminating carry-over of the chips.
  • FIG. 1 is a perspective view of the wood chipper
  • FIG. 2 is an enlarged, vertical section-a1 view through the wood chipper
  • FIG. 3 is a sectional view taken generally along line 3-3 of FIG. 2;
  • FIG. 4 is a fragmental view taken generally along the line 4-4 of FIG. 3.
  • a power unit 10 such as an electric motor, having a drive shaft 11. Opposite ends of the drive shaft 11 are supported in a manner well understood in the art by bearing members 12, only one of which is shown.
  • the bearing members 12 are supported by a supporting frame 13, as shown in FIG. 1.
  • a rotary disc 14 Mounted on the shaft 11 and adapted for rotation therewith is a rotary disc 14 having a plurality of angularly spaced knives 16 mounted at one side thereof, as shown in FIG. 2.
  • a plurality of angularly spaced through passageways 17 are provided adjacent the knives 16 whereby the wood cut into chips by the knives 16 passes through the passageways to the opposite side of the disc 14.
  • an outer housing 18 Surrounding the other side of the disc 14 or the side thereof opposite the knives 16 is an outer housing 18. As shown in FIGS. 2 and 3, the outer housing 18 is spaced radially and outwardly from the periphery of the disc 14. As shown in FIG. 3, the outer housing 18 is provided with side walls 19 and 21 which are spaced from the shaft 11. A centrally disposed inlet opening 22 is provided in the side wall 19 whereby air is drawn inwardly of the housing by means to be described hereinafter.
  • An arcuate wall section 23 surrounds a portion of the side of the disc 14 opposite the side thereof carrying the blades 16. As shown in FIGS. 2 and 3, the arcuate wall section 23 is spaced inwardly of the outer housing 18 to define a chip receiving chamber 24 inwardly of the arcuate wall section 23 and a plenum chamber 26 between the arcuate wall section 23 and the outer housing 18. That is, the chip receiving chamber is defined by the arcuate wall section 23, the side wall 19 and the adjacent side of the disc 14, as shown in FIG. 3.
  • Angularly spaced, radially extending blades 27 are secured rigidly to the side of the disc 14 opposite the side thereof carrying the knives 16 by suitable retaining bolts 28.
  • the outer ends of the blades 28 are curved outwardly in the direction of rotation of the disc 14, as shown.
  • a plate-like member 29 which carries a plurality of angularly spaced blades 31 which are shorter in length than the blades 27.
  • the blades 27 are positioned closer to the passageways 17 than the relatively short blades 31, as shown.
  • Wood W is fed to the side of the disc 14 carrying the blades 16 by a chute 32 whereupon it is cut into chips by the knives 16.
  • a tangential outlet 33 is provided for the chip receiving chamber 24 for discharging the chips, therefrom.
  • a circumferential outlet 34 is provided for the plenum chamber 26 adjacent and alongside the tangential outlet 33 for discharging air from the plenum chamber. Communicating with the outlets 33 and 34 is a discharge conduit 36 which receives the chips discharged through the tangential outlet 33 and the air discharged through the circumferential outlet 34 whereby the air discharged through the outlet 34 aids in conveying the chips through the discharge conduit 36.
  • the discharge end of the plenum chamber 26 is directed inwardly toward the tangential outlet 33 whereby air discharged from the circumferential outlet 34 contacts the chips discharged through the outlet 33 at an angle to prevent channelling of the air.
  • the arcuate wall section 23 extends from a point adjacent the outlets 33 and 34 to the point that the wood W is fed to the disc, as shown in FIG. 2, whereby the chips pass through the chip receiving chamber 24 while air is forced through the plenum chamber 26.
  • the circumferential outlet 34 is separated from the tangential outlet 33 by a continuation 23 of the arcuate wall section 23 whereby the air discharged from the plenum chamber 26 does not engage the chips until they are introduced into the discharge conduit 36.
  • the portion of the outer housing 18 extending in advance of the arcuate wall section 23 and between the tangential outlet 33 and the arcuate wall section 23 is involute in shape as at 18 whereby the upper half of the apparatus shown in FIG.
  • the lower half of the apparatus shown in FIG. 2 serves as a blower to introduce air into the chip receiving chamber 24 and into the plenum chamber 26.
  • the lower half of the apparatus shown in FIG. 2 performs the function of a wood chipper. Accordingly, the portion of the outer housing 18 and the portion of the arcuate wall section 23 extending from a point adjacent the tangential outlet and the circumferential outlet to the point that wood is fed into the disc 14 is generally circular, as shown.
  • Wood W is fed into the chute 32 whereupon it is cut into chips by the knives 16.
  • the chips pass through the openings 17 into the chip receiving chamber 24.
  • the disc 14 is rotated, air is drawn inwardly of the housing 18 by the angularly spaced blades 27 and 31. Since the upper portion of the apparatus shown in FIG. 2 is free of chips and is surrounded by the involute section 18 of the outer housing 18, this portion of the apparatus operates as a blower to introduced air into the plenum chamber 26 and to introduce air into the chip receiving chamber 24 for conveying the chips therethrough and then outwardly through the tangential outlet 33.
  • the chips are conveyed through the chip receiving chamber 24 by the kinetic energy possessed by the moving chips and by the air drawn inwardly of the chip receiving chamber through the inlet opening 22. Due to the fact that the arcuate wall section 23 is circular, the blades 27 and 31 remain relatively close to the inner surface thereof, as shown in FIG. 2, thereby preventing the chips from entering the small space between the arcuate wall and the blades. As the chips are discharged from the tangential outlet 33, they are engaged by the air discharged from the plenum chamber 26 through the outlet 34 whereby this air aids in conveying the chips through the discharge conduit 36. Since the arcuate wall section 23 is provided with an extension 23* which separates the outlets 33 and 34 from each other, the air discharged through the circumferential outlet 34 does not engage the chips until they are introduced into the discharge conduit 36.
  • an improved wood chipper which is extremely simple of construction and one in which an angularly disposed portion thereof serves as a blower for introducing air into the chip receiving chamber and the plenum chamber while another angularly disposed portion thereof performs the function of a wood chipper.
  • the arcuate wall section 23 which separates the wood receiving chamber from the plenum chamber, we not only provide an efficient blower which aids in conveying the chips, but also provide a compact, centrally disposed chip receiving chamber which is positioned close to the chip conveying blades, thereby preventing the chips from passing between the conveying blades and the arcuate wall section.
  • a common blower unit is employed for both the plenum chamber and the chip receiving chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Combined Means For Separation Of Solids (AREA)
US568002A 1966-07-26 1966-07-26 Wood chipper Expired - Lifetime US3384311A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US568002A US3384311A (en) 1966-07-26 1966-07-26 Wood chipper
FI671742A FI44080C (fi) 1966-07-26 1967-06-21 Puunhakkuri
GB29539/67A GB1119457A (en) 1966-07-26 1967-06-27 Wood chipper
NO00169028A NO128803B (enrdf_load_stackoverflow) 1966-07-26 1967-07-13
ES343694A ES343694A1 (es) 1966-07-26 1967-07-20 Perfeccionamientos en las desfibradoras de madera.
SE10824/67*A SE315186B (enrdf_load_stackoverflow) 1966-07-26 1967-07-25
FR5145A FR1532796A (fr) 1966-07-26 1967-07-25 Désintégrateur de bois
DE1653063A DE1653063C3 (de) 1966-07-26 1967-07-25 Holzzerspanmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US568002A US3384311A (en) 1966-07-26 1966-07-26 Wood chipper

Publications (1)

Publication Number Publication Date
US3384311A true US3384311A (en) 1968-05-21

Family

ID=24269511

Family Applications (1)

Application Number Title Priority Date Filing Date
US568002A Expired - Lifetime US3384311A (en) 1966-07-26 1966-07-26 Wood chipper

Country Status (8)

Country Link
US (1) US3384311A (enrdf_load_stackoverflow)
DE (1) DE1653063C3 (enrdf_load_stackoverflow)
ES (1) ES343694A1 (enrdf_load_stackoverflow)
FI (1) FI44080C (enrdf_load_stackoverflow)
FR (1) FR1532796A (enrdf_load_stackoverflow)
GB (1) GB1119457A (enrdf_load_stackoverflow)
NO (1) NO128803B (enrdf_load_stackoverflow)
SE (1) SE315186B (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635410A (en) * 1970-05-04 1972-01-18 Rader Pneumatics & Eng Co Ltd Pulpwood chipper
US3674220A (en) * 1970-12-07 1972-07-04 Omark Industries Inc Chipper shredder
US3682400A (en) * 1971-02-03 1972-08-08 Rader Pneumatics & Eng Co Ltd Pulpwood chipper
US3749323A (en) * 1971-10-26 1973-07-31 Rader Companies Method and apparatus for forming pulpwood chips
US3856212A (en) * 1973-08-02 1974-12-24 Royer Foundry And Machine Co Feeding assist means for a wood chipper
US4203556A (en) * 1978-11-06 1980-05-20 Betz Laboratories, Inc. Grinding device
US4951882A (en) * 1989-03-21 1990-08-28 Ober Howard R Combination leaf and lawn debris comminuting vacuum and wood chipper
US5020579A (en) * 1990-05-21 1991-06-04 Strong Manufacturing Automatic infeed control
US5060873A (en) * 1990-05-21 1991-10-29 Strong Manufacturing Wood chipper fin chip separator
US5605291A (en) * 1994-04-28 1997-02-25 Doskocil; David Chipper/mulcher
US5707017A (en) * 1996-07-09 1998-01-13 Mackissic Inc. Combination leaf and lawn debris blower, comminuting vacuum, and wood chipper
US6053223A (en) * 1998-03-03 2000-04-25 Andritz-Patentverwaltungs-Gmbh Chip outlet in a disc chipper
US20020175113A1 (en) * 1998-05-22 2002-11-28 Hannu Tahkanen Method and apparatus for sorting of chips
CN106476105A (zh) * 2016-11-11 2017-03-08 巫溪县渝星建材有限责任公司 一种新型木材刨花机
CN106476104A (zh) * 2016-11-11 2017-03-08 巫溪县渝星建材有限责任公司 一种木材刨花机
CN112549231A (zh) * 2020-12-24 2021-03-26 巫溪县渝星建材有限责任公司 木材刨花机旋转刀筒及木材刨花机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI88371B (fi) * 1991-11-11 1993-01-29 Sunds Defibrator Rauma Woodhan Foerfarande foer att mata avlaonga traestycken i en skivhugg och skivhugg

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1697925A (en) * 1924-04-24 1929-01-08 H V Mckay Proprietary Ltd Straw-cutting attachment for harvesters
US3123311A (en) * 1964-03-03 Wood chipper
US3346027A (en) * 1963-07-22 1967-10-10 Kirsten Paul Arthur Knife disc wood cutting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123311A (en) * 1964-03-03 Wood chipper
US1697925A (en) * 1924-04-24 1929-01-08 H V Mckay Proprietary Ltd Straw-cutting attachment for harvesters
US3346027A (en) * 1963-07-22 1967-10-10 Kirsten Paul Arthur Knife disc wood cutting machine

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635410A (en) * 1970-05-04 1972-01-18 Rader Pneumatics & Eng Co Ltd Pulpwood chipper
US3674220A (en) * 1970-12-07 1972-07-04 Omark Industries Inc Chipper shredder
US3682400A (en) * 1971-02-03 1972-08-08 Rader Pneumatics & Eng Co Ltd Pulpwood chipper
US3749323A (en) * 1971-10-26 1973-07-31 Rader Companies Method and apparatus for forming pulpwood chips
US3856212A (en) * 1973-08-02 1974-12-24 Royer Foundry And Machine Co Feeding assist means for a wood chipper
US4203556A (en) * 1978-11-06 1980-05-20 Betz Laboratories, Inc. Grinding device
US4951882A (en) * 1989-03-21 1990-08-28 Ober Howard R Combination leaf and lawn debris comminuting vacuum and wood chipper
US5020579A (en) * 1990-05-21 1991-06-04 Strong Manufacturing Automatic infeed control
US5060873A (en) * 1990-05-21 1991-10-29 Strong Manufacturing Wood chipper fin chip separator
US5605291A (en) * 1994-04-28 1997-02-25 Doskocil; David Chipper/mulcher
US5707017A (en) * 1996-07-09 1998-01-13 Mackissic Inc. Combination leaf and lawn debris blower, comminuting vacuum, and wood chipper
US6053223A (en) * 1998-03-03 2000-04-25 Andritz-Patentverwaltungs-Gmbh Chip outlet in a disc chipper
US20020175113A1 (en) * 1998-05-22 2002-11-28 Hannu Tahkanen Method and apparatus for sorting of chips
CN106476105A (zh) * 2016-11-11 2017-03-08 巫溪县渝星建材有限责任公司 一种新型木材刨花机
CN106476104A (zh) * 2016-11-11 2017-03-08 巫溪县渝星建材有限责任公司 一种木材刨花机
CN106476104B (zh) * 2016-11-11 2019-04-02 巫溪县渝星建材有限责任公司 一种木材刨花机
CN112549231A (zh) * 2020-12-24 2021-03-26 巫溪县渝星建材有限责任公司 木材刨花机旋转刀筒及木材刨花机

Also Published As

Publication number Publication date
NO128803B (enrdf_load_stackoverflow) 1974-01-14
FI44080C (fi) 1971-08-10
DE1653063B2 (de) 1973-06-28
SE315186B (enrdf_load_stackoverflow) 1969-09-22
FI44080B (enrdf_load_stackoverflow) 1971-04-30
DE1653063A1 (de) 1971-09-09
DE1653063C3 (de) 1974-01-24
GB1119457A (en) 1968-07-10
ES343694A1 (es) 1968-09-01
FR1532796A (fr) 1968-11-22

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