CA1322833C - Apparatus for filleting fish - Google Patents
Apparatus for filleting fishInfo
- Publication number
- CA1322833C CA1322833C CA 561266 CA561266A CA1322833C CA 1322833 C CA1322833 C CA 1322833C CA 561266 CA561266 CA 561266 CA 561266 A CA561266 A CA 561266A CA 1322833 C CA1322833 C CA 1322833C
- Authority
- CA
- Canada
- Prior art keywords
- saddle
- fish
- blade
- circular knives
- filleting
- 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 - Fee Related
Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 39
- 241000277331 Salmonidae Species 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/16—Removing fish-bones; Filleting fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Processing Of Meat And Fish (AREA)
Abstract
A B S T R A C T O F T H E D I S C L O S U R E
In the case of known apparatuses for filleting fish, such as trout, the eviscerated fish is placed astride a saddle which is displaceable longitudinally between the two blades of a pair of circular knives.
The distance between the two circular knives is fixed.
In the present invention, in order to be able to adapt the distance between the two circular knives to the thickness of the plate-like saddle, which, in turn, is replaceable for adaptation to different sizes of fish, the distance between the two circular knives is variable. To this end the knives are each mounted upon a lever adapted to pivot about a vertical axis, the lever carrying a sensing arm comprising a roller which bears against a lateral surface of the saddle.
In the case of known apparatuses for filleting fish, such as trout, the eviscerated fish is placed astride a saddle which is displaceable longitudinally between the two blades of a pair of circular knives.
The distance between the two circular knives is fixed.
In the present invention, in order to be able to adapt the distance between the two circular knives to the thickness of the plate-like saddle, which, in turn, is replaceable for adaptation to different sizes of fish, the distance between the two circular knives is variable. To this end the knives are each mounted upon a lever adapted to pivot about a vertical axis, the lever carrying a sensing arm comprising a roller which bears against a lateral surface of the saddle.
Description
~3~ J~
PPARATUS FOR FILLETING FISEI
Th~ invention relates to an apparatus for filleting fish comprising a saddle upon which the eviscerated fish are placed astride and a pair of rotating circular knives between the blades of which the said saddle is displaceable for the purpose of filleting the fish.
An apparatus of this kind is described and illustrated in German OS 2,521,272. The eviscerated and beheaded fish, in this case, is placed upon a cross-sectionally T-shaped saddle in such a manner that the tail is at the rear as the saddle advances. The fish, thus held, is first placed between two spring-loaded guides, the purpose of which is to align it centrally for the following operating procedures. The guides are followed by a cutting station comprising an upper and lower pair of circular knives, the distance between the -~blades of each pair being fixed. The backbones are separated from the fillets in a subsequent filleting station with two initially parallel and then diverging plates.
A similar apparatus is described in German AS
1,454,082. In this case, ~he eviscerated fish is placed tail-first upon a saddle and is passed to a back-filleting-blade plate and to a belly-filleting-blade.
Prior to filleting, the bones are cut free with two incisions extending in the abdominal-cavity area, on each side o~ the fish, almost to the lower vertabral extensions. Available for this purpose are two pairs of circular knives adapted to pivot inwardly and outwardly in synchronism, the blades of which are adapted to rotate about a vertical axis. ~he blades of all of these knives are at a fixed distance from each other.
The invention is directed to the provision of an ~35 apparatus of the type mentioned above in such a manner -~ that the distance between the circular knives corresponds to the thickness of the ~ish placed upon the saddle wherein the saddle is also to be adapted to the thickness o~ the fish.
$~
-:
O~J~3 In accordance with the present invention, there is provided an apparatus for filleting fish, comprising a saddle upon which the eviscerated fish are placed astride and a pair of rotating circular knives, between the blades of which the saddle is displaceable longitudinally for the purpose of filleting the fish, the distance between the circular knives being variable.
By providing the distance between the circular knives variable, it is possible to use saddles of different thicknesses, depending upon the size of the fish.
It is desirable, in this connection, for each circular knife to be mounted upon a lever adapted to pivot about a vertical axis. This design makes it possible to attach, to each pivoting lever, a sensing arm, the free end of which carries a sensing roller bearing against a lateral surface of the saddle. This has the advantage that the distance between the circular knives is adapted automatically to the thickness of the saddle.
In order to ensure that the fish rests securely upon the saddle during the filleting operation, pressure elements are provided above the saddle and on each side thereof. These elements may be in the form of rollers bearing against the ~ish.
However, it is also po~sible for the saddle to comprise suction-elements which draw the ~ish to the surfaces of the said saddle.
It is desirable to provide, in front of the circular knives, as s en in the operating direction, and above the- saddle, a bladP lying in the longitudinal plan thereof. This blade cuts the fish in the middle of the back down to the backbone. Two subsequent elements then deflect the incised flesh to the side before the two circular knives carry out the filleting operation.
In this way the flesh above the backbone, of which there is a considerable amount when the backbone is wide, does not go to waste.
: ~ ' ~322~ ~3 Further characteristics and advantage~ of the invention may be gathered from the sub-claims and from the following description of the example of embodiment illustrated in the drawing attached hereto, wherein:
S Figure 1 is a diagrammatical side elevation of an apparatus according to the invention; and Figure 2 is a diagrammatical plan view of the apparatu~ according to Figure 1.
Referring to the drawings, Figure 1 illustrates diagrammatically a baseplate 10 having a longitudinal guide for a saddle 12 in the form of a plate which is adapted to move longitudinally in the direction of the double arrow. The drive for this movement is not shown.
Saddle 12 may be replaced in order to adapt it to the si2e of the fish 14 to be filleted. The eviscerated fish is place astride the saddle 12 with the tail 16 directed forwardly. In order to ensure that the fish is well supported upon the saddle 12, the surface o the latter carries transverse incisions 18 and has a step-like stop 20 in the vicinity of the tail 16.
Located in front of saddle 12, as seen in the direstion of feed, are two circular knives 22 arranged substantially in parallel with each other, each of them mounted upon a lever 24 adapted to rotate about a horizontal axis. The drive for the circular knives is also not shown. Levers 24 are mounted upon baseplate 10 in such a manner as to be pivotable about a vertical a~is 26.
Secured to each lever 24 is a sensing arm 28, the free end of which extend6 to saddle 12 and carries a sensing roller 30 bearing against a lateral surface 32 of the said saddle. Also provided arP pressure-elements 34 which are in the form of compression springs urging the sensing rollers towards lateral surfaces 32 of the saddle 12.
As a result of this arrangement, the distance between circular knives 22 matches thickness d of saddle 12, in such a manner that the distanc~ is only slightly greater than the thickness. The piece ~f flesh cut from J
the fish during filleting, and containing the bones, is therefore as thin as possible.
While saddle 12, carrying fish 14, is advancing between circular knives 22, rollers 36, bearing resiliently against the sides of the fish, ensure that the fish adheres closely to the saddle 12. The same purpose is served by a pressure-roller 38 bearing resillently upon the fish from above.
Figure 1 also shows that suction-holes 40 are provided in the vicinity of the upper edge of saddle 12, the holes 40 being connected, through a suction-line 42, to a suction-source, not shown. In this design, the suction-holes also ensure that the fish adheres closely to lateral surfaces 32 of saddle 12.
The thickness d of the saddle 12 which is used is determined by the width of the backbone of the fish to be fillsted~ In the case of large fish in particular, `~ there is a large amount of flesh above the backbone. In order not to lose this flesh during ~illeting with the two circular knives, a blade ~4 is provid~d, ahead of the circular knives and above the saddle, in the longitudinal central plane of the latter. The blade 44 may be in the form of a rotating knife or a stationary blade. As shown in Figur~ 1, the blade 44 is preferably vertically adjustable by means of a screw 46, so that the longitudinal incision in the back of the fish extends to the backbone. As the saddle 12 advances, two lateral, wedge-shaped elernents 48 de~lect the cut ~lesh laterally away before it reaches circular knives 22.
This arrangement provides a further increase in the yield during filleting.
In summary of thi~ disclosure, the present ; invention provides a novel fish ~illeting apparatus which is able to a~commodate variable sizes of fish.
Modi~ications are possible within the scope of this ; inventionS
'-.
. , . ~
PPARATUS FOR FILLETING FISEI
Th~ invention relates to an apparatus for filleting fish comprising a saddle upon which the eviscerated fish are placed astride and a pair of rotating circular knives between the blades of which the said saddle is displaceable for the purpose of filleting the fish.
An apparatus of this kind is described and illustrated in German OS 2,521,272. The eviscerated and beheaded fish, in this case, is placed upon a cross-sectionally T-shaped saddle in such a manner that the tail is at the rear as the saddle advances. The fish, thus held, is first placed between two spring-loaded guides, the purpose of which is to align it centrally for the following operating procedures. The guides are followed by a cutting station comprising an upper and lower pair of circular knives, the distance between the -~blades of each pair being fixed. The backbones are separated from the fillets in a subsequent filleting station with two initially parallel and then diverging plates.
A similar apparatus is described in German AS
1,454,082. In this case, ~he eviscerated fish is placed tail-first upon a saddle and is passed to a back-filleting-blade plate and to a belly-filleting-blade.
Prior to filleting, the bones are cut free with two incisions extending in the abdominal-cavity area, on each side o~ the fish, almost to the lower vertabral extensions. Available for this purpose are two pairs of circular knives adapted to pivot inwardly and outwardly in synchronism, the blades of which are adapted to rotate about a vertical axis. ~he blades of all of these knives are at a fixed distance from each other.
The invention is directed to the provision of an ~35 apparatus of the type mentioned above in such a manner -~ that the distance between the circular knives corresponds to the thickness of the ~ish placed upon the saddle wherein the saddle is also to be adapted to the thickness o~ the fish.
$~
-:
O~J~3 In accordance with the present invention, there is provided an apparatus for filleting fish, comprising a saddle upon which the eviscerated fish are placed astride and a pair of rotating circular knives, between the blades of which the saddle is displaceable longitudinally for the purpose of filleting the fish, the distance between the circular knives being variable.
By providing the distance between the circular knives variable, it is possible to use saddles of different thicknesses, depending upon the size of the fish.
It is desirable, in this connection, for each circular knife to be mounted upon a lever adapted to pivot about a vertical axis. This design makes it possible to attach, to each pivoting lever, a sensing arm, the free end of which carries a sensing roller bearing against a lateral surface of the saddle. This has the advantage that the distance between the circular knives is adapted automatically to the thickness of the saddle.
In order to ensure that the fish rests securely upon the saddle during the filleting operation, pressure elements are provided above the saddle and on each side thereof. These elements may be in the form of rollers bearing against the ~ish.
However, it is also po~sible for the saddle to comprise suction-elements which draw the ~ish to the surfaces of the said saddle.
It is desirable to provide, in front of the circular knives, as s en in the operating direction, and above the- saddle, a bladP lying in the longitudinal plan thereof. This blade cuts the fish in the middle of the back down to the backbone. Two subsequent elements then deflect the incised flesh to the side before the two circular knives carry out the filleting operation.
In this way the flesh above the backbone, of which there is a considerable amount when the backbone is wide, does not go to waste.
: ~ ' ~322~ ~3 Further characteristics and advantage~ of the invention may be gathered from the sub-claims and from the following description of the example of embodiment illustrated in the drawing attached hereto, wherein:
S Figure 1 is a diagrammatical side elevation of an apparatus according to the invention; and Figure 2 is a diagrammatical plan view of the apparatu~ according to Figure 1.
Referring to the drawings, Figure 1 illustrates diagrammatically a baseplate 10 having a longitudinal guide for a saddle 12 in the form of a plate which is adapted to move longitudinally in the direction of the double arrow. The drive for this movement is not shown.
Saddle 12 may be replaced in order to adapt it to the si2e of the fish 14 to be filleted. The eviscerated fish is place astride the saddle 12 with the tail 16 directed forwardly. In order to ensure that the fish is well supported upon the saddle 12, the surface o the latter carries transverse incisions 18 and has a step-like stop 20 in the vicinity of the tail 16.
Located in front of saddle 12, as seen in the direstion of feed, are two circular knives 22 arranged substantially in parallel with each other, each of them mounted upon a lever 24 adapted to rotate about a horizontal axis. The drive for the circular knives is also not shown. Levers 24 are mounted upon baseplate 10 in such a manner as to be pivotable about a vertical a~is 26.
Secured to each lever 24 is a sensing arm 28, the free end of which extend6 to saddle 12 and carries a sensing roller 30 bearing against a lateral surface 32 of the said saddle. Also provided arP pressure-elements 34 which are in the form of compression springs urging the sensing rollers towards lateral surfaces 32 of the saddle 12.
As a result of this arrangement, the distance between circular knives 22 matches thickness d of saddle 12, in such a manner that the distanc~ is only slightly greater than the thickness. The piece ~f flesh cut from J
the fish during filleting, and containing the bones, is therefore as thin as possible.
While saddle 12, carrying fish 14, is advancing between circular knives 22, rollers 36, bearing resiliently against the sides of the fish, ensure that the fish adheres closely to the saddle 12. The same purpose is served by a pressure-roller 38 bearing resillently upon the fish from above.
Figure 1 also shows that suction-holes 40 are provided in the vicinity of the upper edge of saddle 12, the holes 40 being connected, through a suction-line 42, to a suction-source, not shown. In this design, the suction-holes also ensure that the fish adheres closely to lateral surfaces 32 of saddle 12.
The thickness d of the saddle 12 which is used is determined by the width of the backbone of the fish to be fillsted~ In the case of large fish in particular, `~ there is a large amount of flesh above the backbone. In order not to lose this flesh during ~illeting with the two circular knives, a blade ~4 is provid~d, ahead of the circular knives and above the saddle, in the longitudinal central plane of the latter. The blade 44 may be in the form of a rotating knife or a stationary blade. As shown in Figur~ 1, the blade 44 is preferably vertically adjustable by means of a screw 46, so that the longitudinal incision in the back of the fish extends to the backbone. As the saddle 12 advances, two lateral, wedge-shaped elernents 48 de~lect the cut ~lesh laterally away before it reaches circular knives 22.
This arrangement provides a further increase in the yield during filleting.
In summary of thi~ disclosure, the present ; invention provides a novel fish ~illeting apparatus which is able to a~commodate variable sizes of fish.
Modi~ications are possible within the scope of this ; inventionS
'-.
. , . ~
Claims (10)
1. An apparatus for filleting a previously eviscerated fish, comprising a saddle upon which the eviscerated fish is placed astride and a pair of rotating circular knives having blades, said saddle is displaceable longitudinally between the blades for the purpose of filleting the fish, the distance between the circular knives being variable according to the thickness of the saddle, characterized in that each circular knife is mounted upon a lever adapted to pivot about a vertical axis, and that a sensing arm is connected to each lever and the free end of the sensing arm carries a sensing roller bearing against a lateral surface of the saddle.
2. An apparatus according to claim 1, in which the sensing roller is hold by spring-pressure to the lateral surface of the saddle.
3. An apparatus according to claim 1, in which pressure-elements for the fish are provided above the saddle and on both sides thereof.
4. An apparatus according to claim 3, in which the pressure-elements are rollers bearing resiliently against the fish.
5. An apparatus according to claim 1, 2, 3 or 4, in which the saddle comprises suction-elements for applying suction to the fish against the lateral surfaces of the saddle.
6. An apparatus according to claims 1, 2, 3 or 4, in which the saddle is in the form of a plate with flat lateral surfaces.
7. An apparatus according to claim 1, in which a blade lying in the longitudinal central plane of the saddle is arranged in front of the circular knives, as determined in the operating direction, and above the saddle.
8. An apparatus according to claim 7, in which the blade is vertically adjustable.
9. An apparatus according to claim 8, in which the blade is a circular blade.
10. An apparatus according to any one of claims 7, 8 or 9, in which two elements which deflect laterally the pieces of fish cut from the backbone thereof by the blade are fitted between the blade and the two circular knives.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3708365.1 | 1987-03-14 | ||
| DE19873708365 DE3708365A1 (en) | 1987-03-14 | 1987-03-14 | DEVICE FOR FILLETING FISH |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1322833C true CA1322833C (en) | 1993-10-12 |
Family
ID=6323105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 561266 Expired - Fee Related CA1322833C (en) | 1987-03-14 | 1988-03-11 | Apparatus for filleting fish |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0304475B1 (en) |
| CA (1) | CA1322833C (en) |
| DE (2) | DE3708365A1 (en) |
| WO (1) | WO1988006844A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102232407A (en) * | 2010-04-23 | 2011-11-09 | 刘良忠 | Descaling device |
| CN110521757B (en) * | 2019-09-06 | 2022-01-18 | 江苏省农业科学院 | Intelligent freshwater fish automatic bone and meat slicer based on image recognition system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045022A (en) * | 1990-01-31 | 1991-09-03 | Hazenbroek Jacobus E | Adjustable poultry breast filleting system |
| US6322437B1 (en) | 1997-10-17 | 2001-11-27 | Nordischer Maschinenbau Rud. Baader Gmbh + Co Kg | Method for stripping the muscle meat from fish and device for carrying out this method |
| DE102010022056A1 (en) * | 2010-05-31 | 2011-12-01 | Nordischer Maschinenbau Rud. Baader Gmbh + Co Kg | Device and method for completely separating fillets from the bone structure of beheaded and gutted fish by cutting through a bridge left by other tools |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR539661A (en) * | 1921-08-24 | 1922-06-29 | Fish splitting and cutting machine | |
| FR762536A (en) * | 1932-09-09 | 1934-04-12 | Improvements to fish bone removing machines | |
| DE707962C (en) * | 1937-03-01 | 1941-07-09 | Rudolf Baader | Machine for peeling off the fish meat from the Graetengeruest |
| FR1094257A (en) * | 1953-03-07 | 1955-05-16 | Atlas As | Method and machine for the mechanical cutting of fillets in fish |
| DE1454082A1 (en) * | 1964-01-24 | 1968-12-12 | Nordischer Maschb Rudolf Baade | Method and device for producing meatballs-free fish fillets |
| DE1454087A1 (en) * | 1964-03-07 | 1969-02-27 | Nordischer Maschb Rudolf Baade | Fish filleting machine with controlled back knives |
| DE1579589A1 (en) * | 1966-03-31 | 1970-08-13 | Trio Fab As | Device for controlling processing means in fish processing machines with the aid of sensors which measure the fish |
| GB1513243A (en) * | 1974-05-14 | 1978-06-07 | Unilever Ltd | Method and apparatus for filleting fish |
| SE7711824L (en) * | 1976-10-22 | 1978-04-23 | Secretary Industry Brit | FISH PREPARATION MACHINE |
| US4112547A (en) * | 1976-12-21 | 1978-09-12 | Alexandr Ivanovich Glushkov | Automatically adjustable cutting apparatus for purposes such as filleting fish |
-
1987
- 1987-03-14 DE DE19873708365 patent/DE3708365A1/en active Granted
-
1988
- 1988-03-11 CA CA 561266 patent/CA1322833C/en not_active Expired - Fee Related
- 1988-03-12 WO PCT/EP1988/000198 patent/WO1988006844A1/en not_active Ceased
- 1988-03-12 EP EP19880902829 patent/EP0304475B1/en not_active Expired - Lifetime
- 1988-03-12 DE DE8888902829T patent/DE3876719D1/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102232407A (en) * | 2010-04-23 | 2011-11-09 | 刘良忠 | Descaling device |
| CN102232407B (en) * | 2010-04-23 | 2015-03-11 | 刘良忠 | Descaling device |
| CN110521757B (en) * | 2019-09-06 | 2022-01-18 | 江苏省农业科学院 | Intelligent freshwater fish automatic bone and meat slicer based on image recognition system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0304475A1 (en) | 1989-03-01 |
| DE3708365A1 (en) | 1988-09-22 |
| DE3708365C2 (en) | 1993-03-11 |
| EP0304475B1 (en) | 1992-12-16 |
| DE3876719D1 (en) | 1993-01-28 |
| WO1988006844A1 (en) | 1988-09-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |