• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    14 Abstract The present invention relates to a pin bone removal apparatus comprising a frame 1, apicking member 9 rotatably mounted in relation to the frame about a first rotational axis 3,and an actuator 6 arranged to rotate the picking member in a rotational direction R, and thepicking member includes a first rotating element 10 having a first radial surface 11a and asecond rotating element 12 having a second radial surface 20b facing said first radial surface,and the first and second radial surfaces are arranged to form a wedge-shaped gap betweenthem for receiving a bone, and the wedge-shaped gap is tapered in a direction opposite therotational direction of the picking member. The first radial surface is arranged in parallelwith the rotational direction of the picking member and the second radial surface isarranged angled to the rotational direction of the picking member. (Fig. 1)
    公开号:SE1450122A1
    申请号:SE1450122
    申请日:2014-02-06
    公开日:2015-08-07
    发明作者:Kari Koljonen
    申请人:Castema Innovations Ab；
    IPC主号:
    专利说明:

    A pin bone removal apparatus for removal of pin bones from a fish body.
    Field of the invention The present invention relates to a pin bone removal apparatus for removal of pin bonesfrom a fish body.
    Background of the invention and prior art The preparation of fish fillet is a time consuming and cumbersome process. Especially,removing bones from the meat can be problematic, because these bones are attached to themeat. Some fishes, such as white fishes have rather thin bones that break easily during thepreparation process. This is especially true for pin bones extending from the bigger bonesthat run along the length of the fish.
    Different apparatus have been developed for the removal of bones from meat. Usually, afish is cleaned such that a fish body is obtained comprising half the side of a fish with bonesstill attached to the meat. This fish body is then processed in a fish bone removal apparatus.
    Although known apparatus can be used for removal of bones and pin bones from a fishbody, these apparatus are not efficient for use in removal of all pin bones, especially notbreakable pin bones, such as pin bones from white fish. Therefore, there is a need for anapparatus that can be used for preparation of fish fillet, whereby all or substantially all thebones, including pin bones, are removed from a fish body. There is a need for reduction oflabor cost and time related to the preparation of fish filet, especially for large scaleproduction of fish filet.
    WO9941991 discloses a fish bone removal apparatus comprising a picking member having astack of disc shaped elements that rotate around a rotational axis. A wedge-shaped gap ispresent on the periphery of the elements between two adjacent elements. A fish body istransported over a belt to the elements of the apparatus. Upon contact of the fish body withthe element, the fish bone becomes wedged in the gap and is removed or plucked from themeat during continuous movement of the element upwards relative to the transporting belt.A problem with this apparatus is that it is difficult for the fish bones get caught by the wedgeshaped gap. Another problem with this apparatus is that it is difficult to remove the fishbones from the apparatus when it has been caught by the apparatus. To remove the fishbones from the apparatus, the apparatus, for example, has to be sprayed with water at highpressure. The removal of fish bones causes stop in the production and accordingly loss ofmoney. Another disadvantage with the prior art pin bone removal apparatus is that theperipheries of the discs may cause damages on the fish files, thereby causing wastage of thefish meat.
    Obiect and summary of the invention lt is an object of the present invention to at least partly overcome the above mentionedproblems, and to provide an improved apparatus and improved method for removal ofbones, especially pin bones, from a fish body, especially from a fish body of white fish.
    This object is achieved by a pin bone removal apparatus as defined in claim 1.
    The pin bone removal apparatus comprises a frame, a picking member rotatably mounted inrelation to the frame about a first rotational axis, and an actuator arranged to rotate thepicking member in a first rotational direction, and the picking member includes a firstrotating element having a first surface and a second rotating element having a secondsurface facing said first surface, and the first and second surfaces are arranged to form awedge-shaped gap between them for receiving a bone, and the wedge-shaped gap istapered in a direction opposite the rotational direction of the picking member. The pin boneremoval apparatus is characterized in that the first surface is arranged in parallel with therotational direction of the picking member and the second surface is arranged angled to therotational direction ofthe picking member.
    By the invention, a wedge-shaped gap is obtained, which makes it easier to catch the bonesin the gap and to keep the bones in the gap until the bones have been removed from the fishfilet. Tests has proven that a gap formed between a surface arranged in parallel with therotational direction of the picking member and a surface arranged angled to the rotationaldirection of the picking member is more efficient to catch pin bones then a gap formedbetween two surfaces both arranged angled to the rotational direction of the pickingmember, as shown in the prior art.
    According to an embodiment of the invention, the wedge shaped gap has an angle between2° and 5°, and preferably between 2° and 4°. This narrow angle improves the ability for thepicking member to keep the bones in the gap until the bones have been removed from thefish filet.
    According to an embodiment of the invention, the first rotating element is a planar dischaving two parallel radial surfaces and an outer circumferential surface extending betweenthe radial surfaces. Preferably, the outer circumferential surface of the first rotating elementis planar. Thus, the fish filet is not damaged by the first rotating element.
    According to an embodiment of the invention, the second rotating element has two radialsurfaces converging in the rotational direction of the picking member and an outercircumferential surface extending between the radial surfaces, and the circumferentialsurface is tapered in the rotational direction of the picking member. Preferably, the outercircumferential surface of the second rotating element is planar. Thus, the fish filet is notdamaged by the first rotating element.
    Preferably, the outer circumferential surfaces of the first and second rotating elements areplanar. The circumferential surfaces of the rotating elements form a planar surface thatprevents the fish meat from protruding into the apparatus and accordingly prevents the fishfi|et from being damaged. This embodiment of the invention reduces the wastage of fishmeat during the bone removing procedure.
    According to an embodiment of the invention, the second rotating element is arrangedmovable in relation to the first rotating element, and the apparatus comprises an influenceassembly arranged to move the second rotating element in relation to the first rotatingelement during a revolution of the picking member between a first position, where theperipheries of the first and second rotating elements are aligned to form said wedge-shapedgap between them and a second position, where the peripheries of the first and secondrotating element are spaced apart in a radial direction to allow the bone to be removed fromthe picking member.
    The fish bones are picked when the apparatus is in the first position and the fish bones areremoved when the apparatus is in the second position. The main advantage ofthe apparatusaccording to the invention is that the pin bones are effectively removed from the apparatus.Therefore, stop in the production due to need of cleaning the apparatus from fish bones areavoided, and accordingly the efficiency ofthe fish cleaning is increased.
    According to an embodiment of the invention, the second rotating element is arrangedpivotal about a second rotational axis arranged in parallel with and at a distance from saidfirst rotational axis.
    The pivotal movement of the second rotating element ensures a releasing of the pin bonefrom the picking member in an efficient manner. This prevents the pin bone removalapparatus from becomingjammed with pin bones.
    According to another embodiment of the invention, the first rotating element is disc shapedand the second rotating element comprises an elongated body that is bend over a length ofthe body and has a bending radius corresponding to a bending radius of the periphery of thefirst rotating element.
    The shapes of the peripheries of the rotating elements, especially the surfaces of theperipheries of the elements, coordinate, thereby allowing for an efficient collaborationbetween the elements.
    According to a further embodiment of the invention, said influence assembly comprises awheel provided with at least one protrusion arranged to collaborate an inner circumferentialsurface of the second rotating element and a pushing member arranged to be in movablecontact with an outer circumferential surface ofthe second element.
    The influence assembly prevents unnecessary movement of the second rotating element inrelation to the first rotating element. The wheel prevents the second rotating element frommoving more towards the shaft than would be necessary for the functioning of the pin boneremoval apparatus.
    According to an embodiment of the invention, said first rotating element is a planar disc andthe periphery of the second rotating element is tapered in the rotational direction of thepicking member such that said wedge-shaped gap for receiving the bones is formed betweenthe peripheries of the first and second rotating element. The tapered form on the peripheryof the second rotating element advantageous forms a wedge-shaped gap, which gapefficiently receives and holds a pin bone attached to a fish body. With a planar disc is meantthat the disc has two parallel surfaces.
    According to another embodiment of the invention, the picking member comprises a thirdrotating element in the form of a planar disc arranged in parallel with and at a distance fromthe first rotating element, the second rotating element is arranged between the first andthird rotating element, and the second rotating element is wedge-shaped so that wedgeshaped gaps for receiving the bones are formed between the periphery of the secondmember and the peripheries of the first and third rotating elements.
    A stack of elements can be formed. The width of the picking member can easily be adjustedto the width of a fish or the scale of a production line.
    According to a further embodiment of the invention, the second radial surface of the secondrotating element is provided with gripping elements, for example in the form ofcircumferentially arranged elongated grooves.. The gripping elements improve the friction ofthe surface of the second rotating elements and accordingly improve the grip of the pinbones in the wedge-shaped gap.
    According to an embodiment of the invention, the first radial surface of the first rotatingelement is substantially planar, i.e. without any gripping elements. The combination of aplanar surface without any gripping elements and a rough surface provided with grippingelements improves the gripping of the bones and also facilitates the removal ofthe bones.
    According to a further embodiment of the invention, the apparatus comprises a bone guidestructure arranged adjacent to the periphery of the picking member and comprising asubstantially flat surface adapted to be in contact with a fish body, a concave bone guidingsurface enclosing a part of the periphery of the picking member, and an edge formedbetween the flat surface and the bone guiding surface, and the bone guiding surface isarranged spaced apart from the periphery of the picking member such that a slot forreceiving the bones is formed between the bone guiding surface and the picking member.
    The bone guide structure assists in efficient removal of the pin bone from the fish body. Theedge contributes to the lifting of the bone from the fish body.
    The object of the invention is also achieved by a method comprising the steps of - transporting a fish body to a pin bone removal apparatus as defined above, - wedging a pin bone on the fish body in the wedge-shaped gap between the first andsecond rotating element, during a revolution ofthe picking member, - moving the wedged pin bone from the fish body as the fish body is transported past the pinbone removal apparatus and the pin bone is transported in the gap away from the fish body,- releasing the pin bone from the wedge-shaped gap by a collaboration between the secondrotating element and the pushing member during the revolution of the picking member, and- optionally, removing ofthe pin bone from the pin bone removal apparatus.
    Brief description of the drawings The invention will now be explained more closely by the description of differentembodiments ofthe invention and with reference to the appended figures.
    Fig. 1 shows a perspective view of a pin bone removal apparatus according to anembodiment of the present invention seen from above.
    Fig. 2 shows a perspective view of the pin bone removal apparatus in figure 1 seen frombelow.
    Fig. 3 shows a side view ofthe pin bone removal apparatus.
    Fig. 4 shows a rear view of the pin bone removal apparatus.
    Fig. 5 shows an exploded view ofthe pin bone removal apparatus.
    Fig. 6 shows an example of an actuator hidden in a handle.
    Fig. 7 shows an example of a second rotating element.
    Fig. 8 shows the wedge-shaped gaps formed between the first and second rotatingelements.
    Fig. 9 shows a schematic side view of a pin bone being moved in a wedge-shaped gap.
    Fig. 10 shows a schematic side view of a pin bone being moved into a slot.
    Fig. 11 shows a schematic side view of a pin bone being removed from the wedge-shaped gap.
    Detailed description of embodiments of the invention A pin bone removal apparatus ofthe present invention can be used to remove bones and pinbones from fish. Any type of fish can be used in the pin bone removal apparatus. Examplesof fish may be salmon, pollack, haddock, mockery, scrod, whitefish, and the like. The pinbone removal apparatus is especially suitable for removal of pin bones, which easily breakduring removal of the bone from the meat ofthe fish, such as pin bones from white fishes.
    Figure 1 shows a perspective view of a pin bone removal apparatus according to anembodiment of the present invention seen from above. Figure 2 shows a perspective view of the pin bone removal apparatus in figure 1 seen from below. Figure 3 shows a side view ofthe pin bone removal apparatus. Figure 4 shows a rear view of the pin bone removalapparatus. Figure 5 shows an exploded view of the pin bone removal apparatus.
    The pin bone removal apparatus comprises a frame 1, and a rotatable shaft 2 that extendsalong a first rotational axis 3. The apparatus may further comprise a holding memberneeded for safety, stability or comfort, such as a member to secure the pin bone removalln theembodiment shown in figure 1, the holding member is a handle 5. The frame 1 can be apparatus to a surface or a handle to hold the pin bone removal apparatus. designed for attaching a bone guide structure 7 for guiding the pin bones into the apparatus.Preferably, at least one holding member extends traversally or perpendicularly in relation tothe first rotational axis.
    The pin bone removal apparatus also comprises an actuator 6 adapted to rotate the shaft 2and a picking member 9 attached to the shaft 2. The actuator is arranged to rotate thepicking member 9 in a rotational direction R. The picking member 9 is, for example,cylindrical. The picking member 9 is rotatably mounted in relation to the frame 1 about thefirst rotational axis 3 extending through a center of the picking member. The actuator maybe a motor, such as an electrical or fuel driven motor. The actuator 6 may be comprised inthe handle 5 of the pin bone removal apparatus, as shown in figure 6. The actuator mayallow a rotation speed ofthe shaft of between 50 to 500 rotations per minute.
    The picking member 9 is mounted on the pin bone removal apparatus, more specifically onthe shaft 2 of the pin bone removal apparatus such that the picking member rotates whenthe shaft is rotating. ln this embodiment, the picking member has an essentially cylindricalshape. The picking member 9 comprises one or more first rotating elements 10 and one ormore second rotating elements 12. The first rotating elements 10 are fixedly connected tothe shaft 2. The picking member 9 may further comprise means to attach the first rotatingelement to the shaft. For example, the first rotating elements 10 can be welded to the shaft.
    The first rotating element 10 is formed in the shape of a disc having a substantially circularperiphery 15. ln this embodiment, the first rotating element 10 is a planar disc having twoparallel radial surfaces 11a-b and an outer circumferential surface 11c, as shown in figure 5.The width ofthe outer circumferential surface 11c of the disc is preferably at least 2mm. Theradial surfaces 11a-b are arranged in parallel with the rotational direction of the pickingmember and orthogonal to the rotational shaft 2. The first rotating element 10 has a hole insubstantially a center of the disc, adapted to receive the shaft 2, and a diameter extendingfrom the center of the disc to the periphery 15 of the disc. The periphery 15 has an outercircumferential surface 11c and is bent with a circular bending radius. The first rotatingelement has further a first and second surface 11a-b on each side of the disc. The surfacesextend traversally in relation to the first axis 3, when the first rotating element is mountedon the shaft. The first and/or second surface 11a-b may be flat or planar. ln one embodiment, the first and second surfaces 11a-b are planar. An edge between the firstand/or second surface and the circumferential surface may be sharp or not.
    Figure 7 shows an enlarged view of the second rotating element 12. The second rotatingelement 12 comprised in the picking member is pivotally mounted on the first rotatingelement 10 about a second rotational axis 14. The second rotating element 12 is positionedin the proximity of the periphery 15 the first rotating element 10. The second rotatingelement 12 comprises an elongated body 13 having a length, a width, a first end 16 and asecond end 18, a first radial surface 20a and a second radial surface 20b on the opposite sideof the elongated body, and a periphery 19. The second rotating element 12 has an outercircumferential surface 22 and an inner circumferential surface 23.
    The second rotating element 12 has a second radial surface 20b facing the first radial surface11a of the first rotating element 10. The first radial surface 11a and the second radial surface20b are arranged to form a wedge-shaped gap 24 between them for receiving a bone 25, asseen from figure 3. The wedge-shaped gap 24 is tapered in a direction opposite therotational direction of the picking member, as shown in figure 3. The radial surfaces 20a-b ofthe second rotating element 12 are angled relative to the rotational direction of the pickingmember. The two radial surfaces 20a-b of the second rotating element are converging in therotational direction R of the picking member and the outer circumferential surface 22 istapered in the rotational direction R ofthe picking member.
    The elongated body 13 is curved or bent over the entire length of the body. The bendingradius is such that the curved shape of the elongated body 13 corresponds with the circularbending radius of the periphery 15 of the first rotating element 10. The length of the secondrotating element is such that two to eight second rotating elements 12 can be attached onthe radial surface of one first rotating element 10. Preferably, four second rotating elements12 are attached to one first rotating element, as shown in the figures. The width of thesecond rotating element is such that a secure and functional attachment on the first rotatingelement is provided. A distance 21 is present between a first end 16 of one second rotatingelement and a second end 18 of a subsequent or adjacent second rotating element. Thedistance 21 between two adjacent second rotating elements is large enough to allow pivotalmovement of the second rotating element.
    The first and second radial surfaces 20a-b of the second rotating element 12 may beprovided with gripping elements. The gripping elements may be any means that assist in thegripping of a bone. One example may be grooves 26, such as grooves extending along thelength of the second rotating element and parallel to the bended circumferential surfaces.One or more grooves may be provided on the first surface. Fig 7 shows a first radial surface20a on the second rotating element having 5 parallel grooves 26.
    The body 13 of the second rotating element 12 is tapered in a rotational direction of thepicking member to form a wedge-shaped gap 24 between the first and second rotating elements 10, 12 as shown in figure 8. Thus, the width of the second rotating element 12 issmaller at the first end 16 and then becomes gradually thicker along the direction towardsthe second end 18 of the second rotating element. When the second radial surface 20b ofthe second rotating element is adjacent to the first radial surface 11a of the first rotatingelement, a wedge-shaped gap 24 is formed between said surfaces. As seen from figure 8, thewedge shaped gap 24 has the shape of a right-angled triangle.
    The second rotating element 12 is attached to the first rotating element 10 using pivotallyattachment means 27. The second radial surface 20b of the second rotating element 12 isattached to a first radial surface 11a of the first rotating element 10. The second rotatingelement 12 is allowed to move in relation to the first rotating element 10 about a secondrotational axis 14. The second rotational axis 14 is arranged parallel to and at a distance fromthe first rotational axis 3. ln a first position of the second rotating element, as shown infigure 3, the outer circumferential surface 22 of the second rotating element 12 is paralleland aligned to the circumferential surface 11c of the first rotating element 10. The secondrotating element 12 may be allowed to move to a second position, as shown in figure 2,whereby the circumferential surface 11c of the first rotating element and the outercircumferential surface 22 of the second rotating element 12 become spaced apart in aradical direction. ln this second position, the first end 16 of the second rotating element 12may be pushed down in a direction towards the shaft 2 and the second end 18 of the secondrotating element may be moved up in a direction away from the shaft, as shown in figure 2.For an improved functioning of the picking member 9, the second rotational axis 14 ispreferably not provided in the middle of the length of the elongated body, but slightly offcenter, such as on about one third of the length from the first end of the body of the secondrotating element. ln the first position, when the circumferential surfaces are aligned, a wedge-shaped gap 24 isformed between the peripheries of the first rotating element and the second rotatingelement, and especially between the first radial surface 11a of the first rotating element andthe second radial surface 20b of the second rotating element.
    The picking member 9 may comprise a plurality of first rotating elements 10 and a pluralityof second rotating elements 12. The picking member 9 may comprise a plurality of rotatingelements 10a-d, 12a-d, as shown in figure 5. Subsequent rotating elements 10b-d and 12a-dare positioned parallel to and at a distance from a first rotating element 10a. The secondrotating elements 12a-d is positioned between the first rotating elements 10a-b. This way awedge-shaped gap 24a-b is present on both sides of the second rotating element 12a, onegap 24a between the periphery of the first rotating element 10a and second rotatingelement 12a, and another gap 24b between the second rotating element 12a and theperiphery of the of the second rotating element 10b, as seen from fig 8. The outercircumferential surface 22 of the second rotating element is tapered on two sides of saidcircumferential surface. A stack of rotating elements 10, 12 can be formed. The stack of rotating elements has preferably at least the width of the body of a fish that is to be treatedby the pin bone removal apparatus.
    The pin bone removal apparatus also comprises a bone guide 7 structure as shown in Fig 1.The bone guide structure 7 is arranged adjacent to the periphery of the picking member 9.The bone guide structure 7 comprises a substantially flat surface 28 adapted to be in contactwith a fish body and a concave bone guiding surface 29. The concave bone guiding surface29 forms a slot 30 arranged to receive a bone between the bone guide structure 7 and thecircumferential surfaces 11c, 22 of the picking member. An edge 32 is formed between theflat surface and the bone guiding surface. The bone guide structure may further comprise aflat upper surface 31 adapted to receive bones that have passed through the slot.
    The pin bone removal apparatus also comprises an influence assembly arranged to move thesecond rotating element 12 in relation to the first rotating element 10 during a revolution ofthe picking member 9 in order to remove the bones from the picking member, after thebones have passed through the slot 30. The influence assembly comprises a wheel 34 and apushing member 36, which collaborate to move the second rotating element 12 relative tothe first rotating element 10 in a radial direction, to and from the shaft 2, by moving the firstend 16 of the second rotating element towards the shaft and then the second end 18 of thesecond rotating element away from the shaft.
    The wheel 34 is positioned parallel to the rotating elements 10, 12 and rotates around theshaft 2 in the rotational direction together with the rotating elements. The wheel 34 may beattached to the first rotating element 10 using an attachment means 35. The wheel 34 doesnot move relative to the first or second rotating elements. The wheel 34 comprises a firstand a second surface on each side of a circumferential surface 37 of the wheel and a hole insubstantially a center of the wheel to receive the shaft 2. The circumferential surface 37 ofthe wheel comprises one or more protrusion 38. The protrusions 38 are adapted tocollaborate with the inner circumferential surface 23 of the second rotating element, asshown in figure 2.
    The diameter of the wheel 34 is such that the protrusion 38 is in contact with the innercircumferential surface 23 in the proximity of or at the second end 18 of the second rotatingelement when the second rotating element is in a first position, as shown in figure 2. Thediameter of the wheel 34 next to the protrusion 38 is such that the circumferential surfaceof the wheel is in contact with the inner circumferential surface 23 in the proximity of or atthe first end 16 of the second rotating element, when the second rotating element is in asecond position. The wheel has at least one protrusion 38 per each second rotating element12. The specific shape of the circumferential surface 37 of the wheel limits the movement ofthe second rotating element in a radial direction towards the shaft.
    The pushing member 36 of the influence assembly is positioned next to the picking member9 in a radial direction. The pushing member 36 is pivotal about a third rotational axis 40 positioned parallel to and at a distance from the first and second rotational axes 3, 14. Thepushing member 36 comprises at least one rotating wheel 39 that rotates along an axis inparallel to the third rotational axis 40. The rotating wheel 39 is positioned such that thecircumferential surface of the wheel can be in contact with the outer circumferential surface22 of the second rotating element 12 on the picking member. The at least one rotatingwheel 39 rotates in the opposite direction from the rotational direction. The at least onerotating wheel is attached to a pushing member holding element 41. This element 41 may beattached to the frame 1 of the pin bone removal apparatus. The pushing member holdingelement 41 may, for example, be attached to a traversally orientated holding member of theframe 1, as shown in figure 1.
    The pushing member 36 is preferably pivotally attached to the frame 1. Hereby, the rotatingwheel 39 can move in a radial direction in relation to the first rotational axis 3 to and fromthe outer circumferential surface 22 of the second rotating element. The rotating wheel 39of the pushing member may be in constant contact with the outer circumferential surface 22of the second rotating element. The at least one rotating wheel 39 of the pushing member36 pushes the first end 16 of the second rotating element in the radial direction towards theshaft 2 and by that the second end 18 is moved in the radial direction away from the shaft 2and away from the first rotating element 10, as shown in figure 2. The second rotatingelement 12 is thereby in the second position and the peripheries of the first and secondrotating element are spaced apart in a radial direction to allow a bone to be removed fromthe picking member. To provide sufficient pushing force, a spring 42 may be provided on thepivotally holding element 41 ofthe pushing member 36.
    A pushing member 36 may comprise a plurality of rotating wheels separated from eachother at a distance along the rotational axis that corresponds with the distance along thesame axis between the second rotating elements of the picking member, such that eachrotating wheel can collaborate or contact a second rotating element.
    Method of using the pin bone removal apparatus.
    A method of using the pin bone removal apparatus will know be described with reference tofigures 9 - 11. The pin bone removal apparatus is used to remove bones from a fish body.The fish body is usually a flat half body of a fish with a skin outer side and an inner sidecomprising the bones of the fish. The fish body is transported to the pin bone removalapparatus on a transporting belt. The fish body is positioned such that the skin outer side isorientated towards the belt. The inner side of the fish body is allowed to come into contactwith the picking member 9 and the edge 32 and flat surface 28 of the bone guide structure7.
    When the fish body moves on the moving belt towards the pin bone removal apparatus itarrives under the picking member 9 towards to edge 32 of the bone guiding structure. Apressure on the fish body may be provided by the picking member 9 in order to assist lifting 11 of the bone 25 from the meat of the fish body. At the edge 32, the pin bone 25 becomesdisposed in the wedge-shaped gap 24 between the circumferential surfaces of the firstrotating element 10 and the second rotating element 12, as sown in figure 9. During therelative movement of the fish body in relation to the picking member, the bone 25 becomeswedged in the end of the gap 24 as the pin bone and the end of the gap move closertogether, as shown in figure 10. The wedged pin bone is removed or plucked from the meatof the fish as the fish moves along the belt. The pin bone is moved into and through the slot30 between the picking member 9 and the bone guide structure 7. The gripping elements 26present on the surface of the second rotating element 12 may assist in securing the pin bonein the wedge-shaped gap.
    The rotational movement of the picking member 9 then moves the first rotating element 10and the second rotating element 12, holding the pin bone, towards the pushing member 36.The pushing member pushes the first end 16 of the second rotating element down towardsthe shaft (i.e. into the second position). This results in an upward movement of the secondend 18 ofthe second rotating element 12, away from the shaft 2 relative to the first rotatingelement 10. The upward movement of the second end 18 releases the wedged pin bone 25from the gap 24, as shown in figured 11. The pin bone 25 may be collected on the uppersurface 31 of the bone guide structure 7. The pin bones may be removed from the pin boneremoval apparatus or said upper surface by using a flow of air or water.
    The rotational movement of the picking member 9 then moves the second rotating element12 past the pushing member 36 to arrive in the first position after having passed the pushingmember. The second rotating element 12 then moves along the rotation direction towardsthe belt, where after the circle of moving pin bones from a fish body can start again.
    The shape of the circumferential surface 37 of the wheel 34 prevents the second rotatingelement 12 to be moved in the direction of the shaft 2 more than needed for the removal ofthe pin bone from the picking member.
    The rotational speed of the picking member and the transporting speed of the belt arecorrelated such that pin bones can efficiently and effectively be removed from fish bodiesthat pass the picking member.
    The number of first and second rotating element on the first rotating element of the pickingmember and the diameter of the first rotating element can be adjusted to the width of thefish body.
    权利要求:
    Claims (11)
    [1] 1. A pin bone removal apparatus comprising a frame (1), a picking member (9) rotatablymounted in relation to the frame about a first rotational axis (3), and an actuator (6)arranged to rotate the picking member in a rotational direction (R), and the picking membercomprises a first rotating element (10) having a first radial surface (11a) and a secondrotating element (12) having a second radial surface (20b) facing said first radial surface, andthe first and second radial surfaces are arranged to form a wedge-shaped gap (24) betweenthem for receiving a bone, and the wedge-shaped gap is tapered in a direction opposite therotational direction of the picking member, characterized in that the first radial surface isarranged in parallel with the rotational direction of the picking member and the secondradial surface is arranged angled to the rotational direction ofthe picking member.
    [2] 2. The pin bone removal apparatus according to claim 1, wherein said first rotating element(10) is a planar disc having two parallel radial surfaces (11a-b) and an outer circumferentialsurface (11c).
    [3] 3. The apparatus according to any of the previous claims, wherein the second rotatingelement (12) has two radial surfaces (20a-b) converging in the rotational direction (R) of thepicking member and an outer circumferential surface (22) that is tapered in the rotationaldirection of the picking member.
    [4] 4. The apparatus according to any of the previous claims, wherein the second rotatingelement (12) is arranged movable in relation to the first rotating element (10), and theapparatus comprises an influence assembly (34, 36) arranged to move the second rotatingelement in relation to the first rotating element during a revolution of the picking memberbetween a first position, where the peripheries (15,19) of the first and second rotatingelements are aligned to form said wedge-shaped gap (24) between them and a secondposition, where the peripheries of the first and second rotating element are spaced apart ina radial direction to allow the bone to be removed from the picking member.
    [5] 5. The apparatus according to claim 4, wherein the second rotating element (12) is arrangedpivotally about a second rotational axis (14) arranged in parallel with and at a distance fromsaid first rotational axis (3).
    [6] 6. The apparatus according to any of the previous claims, wherein the second rotatingelement (12) comprises an elongated body (13) that is bend over a length of the body andhas a bending radius corresponding to a bending radius of the periphery (15) of the firstrotating element.
    [7] 7. The apparatus according to claim 4 or 5, wherein said influence assembly comprises awheel (34) provided with at least one protrusion (38) arranged to collaborate an innercircumferential surface (23) of the second rotating element (12) and a pushing member (36) 13 arranged to be in movable contact with an outer circumferential surface (22) of the secondrotating element.
    [8] 8. The apparatus according any of the previous claims, wherein the picking member (9)comprises two first rotating elements (10a-b) in the form of planar discs arranged in paralleland at a distance from each other, the second rotating element (12) is arranged between thefirst rotating elements, and the second rotating element is wedge-shaped so that wedgeshaped gaps (24a-b) for receiving the bones are formed between radial surfaces (20a-b) ofthe second rotating element and radial surfaces (11a-b) of the first rotating elements.
    [9] 9. The apparatus according to any of the previous claims, wherein said second radial surface(20b) ofthe second rotating element (12) is provided with gripping elements (26).
    [10] 10. The apparatus according to claim 9, wherein said gripping elements (26) comprisescircumferentially arranged elongated grooves.
    [11] 11. The apparatus according to any of the previous claims, wherein the apparatus comprisesa bone guide structure (7) arranged adjacent to the periphery (15,19) of the picking memberand comprising a surface (28) adapted to be in contact with a fish body, a concave boneguiding surface (29) enclosing a part of the periphery of the picking member, and an edge(32) formed between the flat surface and the bone guiding surface, and the bone guidingsurface is arranged spaced apart from the periphery of the picking member such that a slot(30) for receiving the bones is formed between the bone guiding surface and the pickingmember.
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    同族专利:
    公开号 | 公开日
    DK3102042T3|2018-08-13|
    US9770039B2|2017-09-26|
    SE538388C2|2016-06-07|
    EP3102042B1|2018-05-16|
    RU2016130009A|2018-03-14|
    JP6448669B2|2019-01-09|
    CL2016001923A1|2017-04-21|
    WO2015119551A1|2015-08-13|
    CA2937176A1|2015-08-13|
    CN105979785B|2018-01-09|
    RU2659005C2|2018-06-26|
    US20170172166A1|2017-06-22|
    EP3102042A1|2016-12-14|
    JP2017505146A|2017-02-16|
    CN105979785A|2016-09-28|
    EP3102042A4|2017-06-21|
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    DD122322A1|1975-10-23|1976-10-05|
    SU1082368A1|1982-12-27|1984-03-30|Центральное Проектно-Конструкторское И Технологическое Бюро Всесоюзного Рыбопромышленного Объединения Рыбной Промышленности Западного Бассейна|Apparatus for filleting small fish|
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    US6123614A|1998-02-20|2000-09-26|University Of Alaska Fairbanks|Method and apparatus for removing pin bones|
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    法律状态:
    2020-09-29| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450122A|SE538388C2|2014-02-06|2014-02-06|A nerve removal device to remove nerve bones from fish body|SE1450122A| SE538388C2|2014-02-06|2014-02-06|A nerve removal device to remove nerve bones from fish body|
    US15/117,007| US9770039B2|2014-02-06|2015-01-14|Fish bone removal apparatus|
    RU2016130009A| RU2659005C2|2014-02-06|2015-01-14|Fish bone removal apparatus|
    DK15746458.7T| DK3102042T3|2014-02-06|2015-01-14|FISHING LEG TAKER|
    PCT/SE2015/050021| WO2015119551A1|2014-02-06|2015-01-14|A fish bone removal apparatus.|
    JP2016568787A| JP6448669B2|2014-02-06|2015-01-14|Fish bone removal device|
    CN201580007582.9A| CN105979785B|2014-02-06|2015-01-14|Fish-bone removal device|
    CA2937176A| CA2937176A1|2014-02-06|2015-01-14|A fish bone removal apparatus.|
    EP15746458.7A| EP3102042B1|2014-02-06|2015-01-14|A fish bone removal apparatus|
    CL2016001923A| CL2016001923A1|2014-02-06|2016-07-28|Device for removing spines from a fish fillet|
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