WO1993008966A1 - Saw, in particular for use when cutting carcases such as porkers and cattle - Google Patents
Saw, in particular for use when cutting carcases such as porkers and cattle Download PDFInfo
- Publication number
- WO1993008966A1 WO1993008966A1 PCT/DK1992/000316 DK9200316W WO9308966A1 WO 1993008966 A1 WO1993008966 A1 WO 1993008966A1 DK 9200316 W DK9200316 W DK 9200316W WO 9308966 A1 WO9308966 A1 WO 9308966A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- saw
- blade
- driven wheel
- belt
- arms
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B5/00—Accessories for use during or after slaughtering
- A22B5/20—Splitting instruments
- A22B5/203—Meat or bone saws for splitting carcasses
- A22B5/208—Band saws
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22B—SLAUGHTERING
- A22B5/00—Accessories for use during or after slaughtering
- A22B5/20—Splitting instruments
- A22B5/203—Meat or bone saws for splitting carcasses
- A22B5/206—Disc or circular saws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D53/00—Machines or devices for sawing with strap saw-blades which are effectively endless in use, e.g. for contour cutting
- B23D53/12—Hand-held or hand-operated sawing devices working with strap saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/06—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/08—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of devices for guiding or feeding strap saw blades
- B23D55/082—Devices for guiding strap saw blades
Definitions
- the present invention relates to a band saw for use among others for cutting ribs of porkers, to be more specific carcases, but having capabilities for other sawings.
- the present invention provides a compact and handy saw, first of all being efficient by allowing the cutting to be performed in one single operation, such that one person can carry out the hard physical labour of three to four persons.
- the invention is characterized in that an endless saw blade is only guided around a single larger wheel in contrast to ordinary band saws, e.g. known from the wood working industry, which have two or several wheels, around which the saw blade is guided, tensioned and driven.
- ordinary band saws e.g. known from the wood working industry, which have two or several wheels, around which the saw blade is guided, tensioned and driven.
- the exceeding wheels of the known band saws have been replaced by two arms having hard metal lining as abutment for the saw blade.
- the sawing takes places between the two arms.
- the blade In the free area, where the sawing takes place, the blade can be adjusted to different curvatures according to the shape of the object.
- the main principle of the saw is the manner in which the power transfer and the rotation of the saw blade takes place.
- the power transfer takes place by the blade being urged against the edge of a rotating wheel, on a part of the circumference by means of a toothed belt or other form of belt.
- This belt is guided by a number of pulleys arranged such that the blade is forced against the intended part of the circum ⁇ ference of the driven wheel.
- the saw is open downwardly, such that saw dust and the like is not stuck in the saw. Furthermore the saw is gyro suspended and counterbalanced, such that the opera ⁇ tor only should turn the saw following the bones, and should not lift, turn nor rotate the saw.
- Fig. 1 a schematically perspective view of the saw seen from the front and with the removal of a cover shield, covering the rotating parts, and
- Fig. 2 a schematically perspective view, showing the saw as seen from the rear.
- a driven wheel 2 is mounted directly on an electric motor 4.
- a band saw blade 6 is overlaying a part of the periphery of the driven wheel, and is guided by two arms 8 having hard metal plates, and the outer ends of the arms being curved towards each other. The outer ends of the arms can be adjusted, such that the blade in the free area between these can be adjusted to different curvatures.
- the blade is forced against the driven wheel by a toothed belt 10, the toothed side of which is in contact with the blade.
- the band is overlaying the upper part of the driven wheel and follows the blade outside the driven wheel at a distance in the downward direction until two fixed turning pulleys 12, about which the toothed belt is inverted and is now having the toothed side outwardly and further in the upward direc ⁇ tion around a tension pulley 14.
- the blade is supported by the toothed belt on the majority of the length of the free distance between the driven wheel and the arms.
- the toothed belt can be tightened by the ten ⁇ sion pulley 14, which can be displaced vertically by a compressed air cylinder 16, at the rear side of the base plate 18.
- the saw is suspended counterbalanced in a yoke 20.
- the entire saw can be tilted about bearings 22 at the ends of the yoke. Furthermore the entire saw be rotated about the bearings 24 in cooperation with the ring 26.
- the apparatus is safeguarded thereby that the toothed belt is slackened when air pressure is taken off the cylinder 16, which activates the tension pulley 14.
- the cover or shield covering the main parts of the rotating parts is equipped with contacts disconnect ⁇ ing the power supply to the electric motor when the shield is incorrectly placed.
- the two handles 28 for manoeuvring the saw are having contacts such that the saw can only be operated when both contacts are acti ⁇ vated. They can either be air switches for the tension pulley 16 or switches for the electric motor 4.
- the blade As the saw is retracted during a cutting operation the blade has a tendency to be drawn out of the arms which is countered by a roller 30 at the end of an arm 32, which can be brought into a position in front of the blade.
- the arm At the rear side of the base plate 18 the arm is connected to the bearing of the tension pulley 14 by a rod 34, such that the roller 30 is swung away from the blade when the toothed belt 10 is slackened, and the blade can be replaced.
- the invention provides an extremely efficient saw especially for cutting carcases easing the otherwise hard physical work.
- the saw is easy to operate as it is suspended counterbalanced, the suspension at the same time allowing the saw to be rotated and tilted to almost any position. Also the curvature of the blade can be adapted to the objects to be cut.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Processing Of Meat And Fish (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92923704A EP0614412A1 (en) | 1991-11-01 | 1992-11-02 | Saw, in particular for use when cutting carcases such as porkers and cattle |
DK049894A DK49894A (en) | 1991-11-01 | 1994-05-02 | Saw, preferably for cutting carcasses such as pig and cattle carcasses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK1803/91 | 1991-11-01 | ||
DK180391A DK180391D0 (en) | 1991-11-01 | 1991-11-01 | SO V |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993008966A1 true WO1993008966A1 (en) | 1993-05-13 |
Family
ID=8108168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK1992/000316 WO1993008966A1 (en) | 1991-11-01 | 1992-11-02 | Saw, in particular for use when cutting carcases such as porkers and cattle |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0614412A1 (en) |
AU (1) | AU2941692A (en) |
DK (2) | DK180391D0 (en) |
WO (1) | WO1993008966A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997039634A1 (en) * | 1996-04-23 | 1997-10-30 | Meat And Livestock Commission | Spinal column separation |
EP0867118A1 (en) * | 1997-03-25 | 1998-09-30 | Meat And Livestock Commission | Spinal column separation |
WO2020249156A1 (en) | 2019-06-13 | 2020-12-17 | Freund Maschinenfabrik Gmbh & Co. Kg | Apparatus for detaching the backbone from halves of an animal carcass |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1530682A (en) * | 1923-04-03 | 1925-03-24 | Lyman Gustaf | Woodworking mechanism |
US3561310A (en) * | 1967-09-11 | 1971-02-09 | Union Carbide Corp | Cutting and forming apparatus |
GB2082967A (en) * | 1980-09-04 | 1982-03-17 | Aew Eng Co Ltd | A machine for portioning meat |
-
1991
- 1991-11-01 DK DK180391A patent/DK180391D0/en not_active Application Discontinuation
-
1992
- 1992-11-02 WO PCT/DK1992/000316 patent/WO1993008966A1/en not_active Application Discontinuation
- 1992-11-02 EP EP92923704A patent/EP0614412A1/en not_active Withdrawn
- 1992-11-02 AU AU29416/92A patent/AU2941692A/en not_active Abandoned
-
1994
- 1994-05-02 DK DK049894A patent/DK49894A/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1530682A (en) * | 1923-04-03 | 1925-03-24 | Lyman Gustaf | Woodworking mechanism |
US3561310A (en) * | 1967-09-11 | 1971-02-09 | Union Carbide Corp | Cutting and forming apparatus |
GB2082967A (en) * | 1980-09-04 | 1982-03-17 | Aew Eng Co Ltd | A machine for portioning meat |
Non-Patent Citations (1)
Title |
---|
DERWENT'S ABSTRACT, No. E6654 B/21, week 7921; & SU,A,616126 (TIMBER MEC PROCESS), 10 July 1978 (10.07.78), see details 1,6. * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997039634A1 (en) * | 1996-04-23 | 1997-10-30 | Meat And Livestock Commission | Spinal column separation |
EP0867118A1 (en) * | 1997-03-25 | 1998-09-30 | Meat And Livestock Commission | Spinal column separation |
WO2020249156A1 (en) | 2019-06-13 | 2020-12-17 | Freund Maschinenfabrik Gmbh & Co. Kg | Apparatus for detaching the backbone from halves of an animal carcass |
Also Published As
Publication number | Publication date |
---|---|
AU2941692A (en) | 1993-06-07 |
DK49894A (en) | 1994-05-02 |
EP0614412A1 (en) | 1994-09-14 |
DK180391D0 (en) | 1991-11-01 |
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