SE468112B

SE468112B - Device for removing bones from fish meat

Info

Publication number: SE468112B
Application number: SE9101131A
Authority: SE
Inventors: Curt Duckman
Original assignee: Curt Duckman
Priority date: 1991-04-16
Filing date: 1991-04-16
Publication date: 1992-11-09
Also published as: SE9101131L; SE9101131D0

Abstract

The invention relates to a device for removing bones 17 from fish meat 20. Primarily referred to are those kinds of bones 17 which individually lie totally or almost totally hidden in the fish meat 20. The device principally comprises two rollers 1,2, which are situated adjacent to each other and are intended to be placed up against the surface 22 of a fish meat portion 20. The rollers 1,2 are oppositely rotatable relative to each other in such directions that the mutually facing sides of the rollers 1,2 move away from the fish meat surface 22. The rollers 1,2 are arranged to grab and take hold of the end of a fish bone 17 through friction and to draw this out of the fish meat portion 20 as a result of their rotation. <IMAGE>

Description

468 112 10 15 20 25 30 35 2 hylsan 3. Denna är försedd med ett kuggdrev ll, vilket står i ingrepp med en annat kuggdrev 12 på den andra hylsan 4. Drivaxeln 5 är sammankopplad med en elmotor 13, som är påträdbar vid husets bakre ände. 468 112 10 15 20 25 30 35 2 the sleeve 3. This is provided with a gear 11, which is in engagement with another gear 12 on the second sleeve 4. The drive shaft 5 is connected to an electric motor 13, which is threadable at the rear of the housing. End.

Rullarnas 1, 2 ytor är lämpligen utformade för att ge god friktion. De kan exempelvis vara lettrade. Rullarnas 1, 2 framändar 14 resp. 15 är lämpligen utformade som kontoppar och bildar mellan varandra ett mellanrum 16 för instyrning av fiskben 17 mellan rullarna l, 2.The surfaces of the rollers 1, 2 are suitably designed to provide good friction. For example, they may be literate. The rollers 1, 2 front ends 14 resp. 15 are suitably designed as contours and form between each other a space 16 for guiding fish bones 17 between the rollers 1, 2.

Huset 7 har på sin undersida en mot underlaget an- pressbar skiva 18, som uppvisar en urtagning 19 (se fig. 1), vilken är anordnad att tillåta fiskben 17 att med sina ändar tränga upp ur fiskköttet 20 för att underlätta rullarnas 1, 2 uppfångning av fiskbenen 17. Detta gäller främst, när anordningen förflyttas i bakàtriktningen, dvs. i pilens 21 riktning i fig. 4.The housing 7 has on its underside a disc 18 which can be pressed against the ground, which has a recess 19 (see Fig. 1), which is arranged to allow fish bones 17 to penetrate with their ends out of the fish meat 20 to facilitate the rollers 1, 2. catching the fish bones 17. This mainly applies when the device is moved in the rearward direction, ie. in the direction of the arrow 21 in Fig. 4.

Anordningen fungerar pà följande sätt. Elmotorn 13 startas, och rullarna 1, 2 lägges an mot ytan 22 till det fiskkött som skall behandlas. Rullarna 1, 2 roterar därvid så, att rullarnas mot varandra vända sidor rör sig bort från fiskköttsytan 22. Rullarna 1, 2 griper tag i en upp- stickande ände av ett fiskben 17 och drar detsamma snabbt upp ur fiskköttet 20. Anordningen kan på så sätt föras fram över fiskköttsytan 22, varvid varje fiskben 17 i en rad av sådana ett efter ett snabbt drages upp ur fisk- köttet 20. Om något fiskben skulle ligga så djupt, att det är helt dolt, behöver man endast pressa ned rullarna 1, 2 något i fiskköttet 20, varvid desamma effektivt fångar upp nämnda dolda fiskben. Man behöver således icke skära bort någon del av det dyrbara fiskköttet 20. Om ett fiskben 17 är så pass kraftigt, att det har svårt att tränga upp emellan rullarna 1, 2, pressas dessa något bakåt mot fjädrarnas 8, 9 verkan. Genom snedställningen relativt varandra av de båda axlarna 5, 6 kommer därvid en liten spalt att bildas mellan rullarna 1, 2, varigenom det kraftigare fiskbenet 17 erbjudes möjligheten att tränga 'upp emellan rullarna 1, 2 precis på samma sätt som 10 15 20 25 30 35 468 112 3 tunnare fiskben 17. Så snart det kraftiga fiskbenet l7 av- lägsnats, pressar fjädrarna 8, 9 åter samman rullarna 1, 2.The device works as follows. The electric motor 13 is started, and the rollers 1, 2 are placed against the surface 22 of the fish meat to be processed. The rollers 1, 2 rotate so that the opposite sides of the rollers move away from the fish meat surface 22. The rollers 1, 2 grip a protruding end of a fish bone 17 and quickly pull it out of the fish meat 20. The device can thus the fish meat surface 22 is carried out over the fish meat surface 22, each fish bone 17 in a series of such being quickly pulled up from the fish meat 20. If any fish bone were to lie so deep that it is completely hidden, only the rollers 1 need to be pressed down. 2 slightly in the fish meat 20, the same effectively catching said hidden fish bones. Thus, it is not necessary to cut off any part of the expensive fish meat 20. If a fish bone 17 is so strong that it is difficult to penetrate between the rollers 1, 2, these are pressed slightly backwards against the action of the springs 8, 9. By tilting the two shafts 5, 6 relative to each other, a small gap will be formed between the rollers 1, 2, whereby the stronger fish bone 17 is offered the possibility of penetrating between the rollers 1, 2 in exactly the same way as 35 468 112 3 thinner fishbones 17. As soon as the strong fishbone 17 has been removed, the springs 8, 9 compress the rollers 1, 2 again.

För att ytterligare underlätta arbetet med utdrag- ningen av fiskben 17 kan anordningen, såsom visas i fig. 4, vara försedd med en uppfångningsanordning. Denna består av ett till en icke visad undertryckskälla anslutet sugmunstycke 23, som lämpligen är beläget rakt över rullarna 1, 2 och är anordnat att suga till sig fiskben 17, som frilagts av rullarna l, 2.In order to further facilitate the work of pulling out fish bones 17, the device can, as shown in Fig. 4, be provided with a catching device. This consists of a suction nozzle 23 connected to a source of negative pressure (not shown), which is suitably located directly over the rollers 1, 2 and is arranged to suck on fish bones 17, which are exposed by the rollers 1, 2.

Anordningen enligt uppfinningen gör det således möjligt att på ett mycket snabbare och effektivare sätt än vad som hittills kunnat ske avlägsna fiskben 17 av be- skrivet slag ur fiskkött 20. Samtidigt kan arbetet utföras utan någon som helst förlust av fiskkött 20.The device according to the invention thus makes it possible to remove fish bones 17 of the described type from fish meat 20 in a much faster and more efficient manner than has hitherto been possible. At the same time, the work can be carried out without any loss of fish meat 20.

Anordningen föres lämpligen framåt i anliggning mot köttytan 22 i riktning mot uppstående fiskben 17, så att dessa fångas in i mellanrummet 16 mellan rullarna l, 2.The device is suitably advanced in abutment against the meat surface 22 in the direction of raised fish bones 17, so that these are caught in the space 16 between the rollers 1, 2.

Det är dock likaväl möjligt att föra anordningen i bakåt- riktningen, varvid enstaka fiskben 17, vilka eventuellt blivit kvar på grund av att de leget helt dolda i fisk- köttet 20 och därvid ej observerats, genom anpressning av plattan 18 tvingas att sticka upp med sin ände, se fig. 4, och därmed fångas upp av rullarna 1, 2.However, it is still possible to move the device in the rearward direction, whereby individual fish bones 17, which may have remained due to being completely hidden in the fish meat 20 and not observed, are forced to stick up by pressing the plate 18. its end, see Fig. 4, and thus caught by the rollers 1, 2.

Anordningen är icke begränsad till det visade och beskrivna utförandet utan kan varieras på flera sätt inom ramen för efterföljande krav. Detta gäller såväl rullarnas l, 2 utformning som drivningen av desamma. Rullarna kan sålunda vara cylinderformiga i stället för koniska och vara isärförbara vinkelrätt mot sina vridningsaxlar mot verkan av fjäderorgan, som är anbragta i husets 7 främre vägg eller intill denna.The device is not limited to the embodiment shown and described but can be varied in several ways within the scope of the appended claims. This applies to the design of the rollers 1, 2 as well as the drive of the same. The rollers can thus be cylindrical instead of conical and be separable perpendicular to their axes of rotation against the action of spring means, which are arranged in the front wall of the housing 7 or adjacent thereto.

I stället för att vara fästa vid hylsorna 3 och 4, förskjutbara på axlarna 5 och 6, kan rullarna 1, 2 vara direkt anbragta på axlarna 5, 6, vilka därvid kan vara axiellt förskjutbara relativt husets 7 väggar. 468 112 4 Givetvis är anordningen även användbar för avlägs- nande av andra typer av fiskben än de beskrivna. 10 15 20 25 30 35Instead of being attached to the sleeves 3 and 4, displaceable on the shafts 5 and 6, the rollers 1, 2 can be mounted directly on the shafts 5, 6, which can then be axially displaceable relative to the walls of the housing 7. 468 112 4 Of course, the device is also useful for removing other types of fish bones than those described. 10 15 20 25 30 35

Claims

10 15 20 25 30 35 468 112 5 P A T E N T K R A V

1. A device for removing bones from fish meat, preferably such bones (17), each of which is for the most part hidden in the fish meat (20), characterized in that the device consists of two adjacent ones rollers (1, 2), which are intended to be mounted against a fish meat surface (22) and are rotatable in opposite directions relative to each other in such directions that the sides (1, 2) facing each other move away from the fish meat surface (22) and which rollers (1, 2) are arranged to grip the end of a fish bone (17) by frictional action and by pulling it pull it out of the fish meat (20).

Device according to Claim 1, characterized in that the surfaces of the rollers (1, 2) are lettered.

3. Device according to claim 1 or 2, characterized in that the front ends (14, 15) of the rollers (1, 2) are designed as contours, which between each other form a gap (16) for guiding of fish bones (17) between the rollers (1, 2).

Device according to one of the preceding claims, characterized in that the rollers (1, 2) are separable against the action of spring means (8, 9).

Device according to one of the preceding claims, characterized in that the axes of rotation of the rollers (1, 2) form an angle with one another and that the rollers (1, 2) are designed to taper conically in the direction of their front ends (14, 15) and are separable by displacing the rollers (1, 2) in the axial direction.

Device according to one of the preceding claims, characterized in that the rollers (1, 2) are fixedly mounted on their respective sleeves (3 and 4, respectively), that these sleeves (3, 4) are reciprocable on each shaft (5 and 6, respectively), which two shafts (5, 6) form an angle with each other, and that the sleeves (3, 4) are arranged so that by displacement on their respective shaft (5, 6) in one direction against the action of the spring means (8, 9) cause the rollers (1, 2) to be moved slightly apart.

Device according to claim 6, characterized in that one shaft (5) constitutes a drive shaft and is forcibly connected to one sleeve (3), and that this is provided with a gear (11), which is in engagement with another gear (12) on the second sleeve (4) -

Device according to one of the preceding claims, characterized in that the device is provided on its underside with a disc (18) which can be pressed against the surface of the fish meat (22), which has a recess (19), which is arranged to allow fish bones (17) to push out of the fish meat (20) with one end to facilitate the catching of the fish bones (17) by the rollers (1, 2).

Device according to one of the preceding claims, characterized in that the device is provided with a catching device, which consists of a suction nozzle (23) connected to a source of negative pressure, which is arranged in the vicinity of the rollers (1, 2) and arranged to absorb fish bones (17), which are exposed by the rollers (1, 2).