DK166598B1

DK166598B1 - PROCEDURE AND APPARATUS FOR CUTTING THE WINGS FROM THE BODY OF THE SLAUGHTERED SHIRT.

Info

Publication number: DK166598B1
Application number: DK261190A
Authority: DK
Inventors: Eran Meruz; Frank Gade Nielsen
Original assignee: Lindholst & Co As
Priority date: 1990-10-30
Filing date: 1990-10-30
Publication date: 1993-06-21
Also published as: DK261190D0; DK261190A; AU8865591A; EP0555312A1; WO1992007470A1

Description

DK 166598 B1DK 166598 B1

Den foreliggende opfindelsen angår en fremgangsmåde til afskæring af vingerne fra kroppen af slagtet fjerkræ, og af den i indledningen til krav 1 angivne art. En sådan fremgangsmåde kendes fra EP-A1-312 881.The present invention relates to a method of cutting off the wings from the body of slaughtered poultry and of the species specified in the preamble of claim 1. Such a method is known from EP-A1-312 881.

55

Det har længe været almindeligt at slagtet fjerkræ, f.eks. kyllinger, markedsføres i "grydeklar" tilstand, og indenfor de senere år er det blevet almindeligt også at markedsføre kyllinger i opskåret tilstand. Herved tilgodeses primært et 10 ønske fra forbrugerne; men ved fabriksmæssig opskæring af fjerkræ opnås også en bedre udnyttelse af slagte-fjerkræ, fordi det herved er blevet muligt også at sælge fjerkræ, der har mindre skavanker, eller som ved den maskinelle slagtepro-ces har fået mindre skader.It has long been common to slaughter poultry, e.g. chickens are marketed in a "pot-ready" state, and in recent years it has become common to also market chickens in the cut state. This primarily satisfies a consumer's desire; but by the factory cutting of poultry, better utilization of slaughtered poultry is also achieved, because it has thereby been possible to sell poultry that have less defects or which have suffered less damage during the mechanical slaughter process.

1515

Der er stor prisforskel på de forskellige opskæringer, og bl.a. derfor er det vigtigt, at opskæringen foregår på anatomisk korrekt måde, således at de dyreste kødstykker, f.eks. brystkød af kyllinger, forbliver intakte, dvs. får størst mu-20 lig vægt. Og set ud fra veterinær-myndighedskrav er det også af stor betydning, at opskæringen udføres anatomisk korrekt, således at der i mindst muligt omfang forekommer overskæring af knogler, idet eventuel sundhedsskadelig vækst af bakterier har størst tilbøjelighed til at forekomme, hvor knoglemarven 25 er blottet.There is a large price difference between the various cuts, and among other things. therefore it is important that the cutting takes place in an anatomically correct way, so that the most expensive pieces of meat, e.g. breast meat of chickens, remains intact, ie. gains the greatest possible weight. And from the point of view of veterinary authority requirements, it is also of great importance that the cutting is performed anatomically correct, so as to minimize the occurrence of bone cutting, since any harmful growth of bacteria is most likely to occur where the bone marrow 25 is exposed. .

Opfindelsen har til formål at angive en forbedret fremgangsmåde til afskæring af vingerne fra kroppen af slagtet fjerkræ, og som ved enkle foranstaltninger muliggør en anatomisk kor-30 rekt afskæring af vingerne fra slagte-fjerkræ.The invention has for its object to provide an improved method of cutting the wings from the body of slaughtered poultry and which, by simple measures, allows an anatomically correct cutting of the wings of slaughtered poultry.

Fremgangsmåden ifølge opfindelsen er ejendommelig ved, at vingerne gribes og med fjederforspænding føres udad/nedad i forhold til kroppen, at kroppen føres mellem stationære knivorga-35 ner, der er indrettet til at gennemskære skindet i nærheden af DK 166598 B1 2 vingernes basisled, at blotlægge de store sener mellem kroppen og vingerne og at presse brystkødet indad mod kroppen, at nævnte sener overskæres ved hjælp af roterende knivklinger, således at vingernes ledknogler på i og for sig kendt måde mo-5 mentant rykkes fri af basisleddene, og at vingerne til sidst skæres helt fri fra kroppen ved passage af nævnte knivklinger. Herved kan det på enkel måde tilsikres, at vingerne afskæres på anatomisk korrekt måde ved basisleddene, uden at der forekommer beskadigelse af vingernes ledknogler. Ved at brystkødet 10 presses ind mod kroppen opnås desuden, at der ikke afskæres brystkød sammen med vingerne. Det er især vigtigt, at de ne-derste, store sener mellem vingerne og kroppen ved det bagud-/ nedadrettede træk strækkes i forhold til kroppen, således at vingernes ledknogler ved overskæring af de udstrakte sener på 15 i og for sig kendt måde momentant rykkes fri af basisledene, og således at de roterende knivklinger uhindret får plads til helt at friskære vingerne.The method according to the invention is characterized in that the blades are gripped and with spring biasing directed outwards / downwards relative to the body, that the body is guided between stationary knife bodies arranged to intersect the skin in the vicinity of the base joint of the blades, that exposing the large tendons between the body and the wings and pressing the breast meat inwardly against the body, said tendons being cut by rotating knife blades, so that the articulated joints of the wings are momentarily removed from the base joints and that the wings of the lastly cut free from the body by passing said blade blades. In this way, the wings can be simply cut off in anatomically correct manner at the base joints without damaging the joints of the wings. Furthermore, by pressing the breast meat 10 against the body, it is achieved that no breast meat is cut with the wings. It is especially important that the lower, large tendons between the wings and the body at the rearward / downward pull are stretched relative to the body, so that the joints of the wings, when cutting the elongated tendons of 15 in a manner known per se, are momentarily moved. free of the base joints, and so that the rotating blade blades allow unobstructed space to completely cut the blades.

Med henblik på yderlige at optimere fremgangsmåden ifølge op-20 findelsen, kan det være fordelagtigt, at vingerne afbremses i forhold til kroppen, således at det nævnte udad/nedad-rettede træk i vingerne desuden får en bagudrettet kraft-komposant, dvs. således at nævnte sener mellem vingerne og kroppen yderligere strækkes.In order to further optimize the method according to the invention, it may be advantageous for the blades to be decelerated relative to the body, so that said outward / downward feature of the blades also receives a rearward force component, i.e. so that said tendons between the wings and the body are further stretched.

2525

Opfindelsen angår tillige et apparat til udøvelse af fremgangsmåden ifølge opfindelsen, og som er indrettet til koordineret samvirkning med en transportør, hvori slagtet fjerkræ, f.eks. kyllinger, ophængt i benene successivt fremføres med 30 rygsiden forrest mod apparatet, der omfatter centrale styreorganer, der er indrettet til at understøtte rygsiden af kyllin-gekroppen i hovedsagelig liggende stilling, indstyringsorganer, der ved hver side af de centrale styreorganer er indrettet til at indstyre vingerne i vingeholderorganer, samt rote-35 rende knivklinger, der er indrettet til afskæring af vingerne DK 166598 B1 3 fra kroppen, hvilket apparat er ejendommeligt ved, at vinge-holderorganerne i nærheden af indføringsenderne er lejret om i hovedsagen lodrette svingakser og i afstand derfra er forbundet med fjederorganer, der er indrettet til at påvirke vinge-5 holder or ganerne til at udsvinges fra hinanden, dvs. til i bevægelsesretningen at forøge den indbyrdes afstand mellem vin-geholderorganerne, at det omfatter stationære knivorganer, der er indrettet til at gennemskære skindet i nærheden af vingernes basisled, at blotlægge sener mellem vingerne og kroppen og 10 at presse brystkødet indad mod kroppen, og at nævnte roterende knivklinger er indrettet til først at overskære nævnte sener, således at vingeknoglerne på i og for sig kendt måde momentant rykkes fri af basisleddene, og derefter at friskære vingerne helt fra kroppen. Ved enkle foranstaltninger opnås herved et 15 apparat, der er velegnet til brug ved udøvelse af fremgangsmåden ifølge opfindelsen, således at det bliver muligt at udføre afskæringen af vingerne på anatomisk korrekt måde, dvs. uden at vingeknoglerne bliver beskadiget. Ud fra et økonomisk synspunkt er det desuden vigtigt, at brystkødet ved hjælp af de 20 stationære knivorganer fra begge sider presses indad mod kroppen og holdes fri af de roterende knivklinger, idet der herved opnås en vægtmæssig forøgelse af brystkødet, der som tidligere nævnt udgør den mest efterspurgte og dyreste del af kyllingen.The invention also relates to an apparatus for carrying out the method according to the invention, which is arranged for coordinated cooperation with a conveyor in which slaughtered poultry, e.g. chickens, suspended in the legs, are successively advanced with the back side in front of the apparatus comprising central control means adapted to support the back side of the chick body in a substantially supine position, control means arranged at each side of the central control means the blades in blade holder means, as well as rotating blade blades arranged for cutting the blades DK 166598 B1 3 from the body, which is characterized in that the blade holder means are disposed in the vicinity of the insertion ends about substantially vertical pivot axes and at a distance therefrom. are associated with spring means adapted to actuate the wing retainers to pivot apart, i.e. to increase in the direction of movement of the spacer means, including stationary knife means adapted to cut the skin near the base joints of the wings, to expose tendons between the wings and the body, and to press the breast meat inwardly toward the body, and said rotary blade blades are arranged to first cut said tendons so that the blade bones are momentarily removed from the base joints in a known manner and then to cut the blades completely from the body. By simple measures there is thus obtained an apparatus suitable for use in the practice of the method according to the invention, so that it is possible to perform the cutting of the wings in an anatomically correct manner, ie. without damaging the wing bones. In addition, from an economic point of view, it is important that the breast meat is pressed inwards towards the body by means of the 20 stationary knife means from both sides, and is kept free from the rotating knife blades, thereby obtaining a weight increase of the breast meat which, as previously mentioned, constitutes the most sought after and most expensive part of the chicken.

2525

Og fortrinsvis er apparatet således udformet, at indstyrings-organerne udgøres af oppefra i en bue nedadførende endedele af højdeindstillelige i hovedsagen vandrette, stationære styreskinner, der er indrettet til at fiksere vingernes "albue-30 led" mod de bevægelige vingeho Ider or ganer, idet nævnte styreskinner strækker sig hen langs med oversiden af vingeholderor-ganerne.And preferably, the apparatus is designed such that the guide means are formed from the upper downwardly extending end portions of height adjustable generally horizontal stationary guide rails arranged to fix the "elbow joint" of the blades against the movable wing cavities or members, said guide rails extend along the upper side of the wing holder means.

I en foretrukken udførelsesform for apparatet ifølge opfin-35 delsen udgøres vingeholderorganerne af endeløse kædebaner, DK 166598 B1 4 hvoraf øvre løb af kæderne er ført i styrespor i øvre kanter af lodrette føringsplader på en sådan måde, at de øvre løb af kæderne forløber parallelt med nævnte styreskinner tæt langs med disse, dvs. således at vingernes "albueled" kan 5 fiksere mellem styreskinnerne og kædernes enkelte led, at de lodrette føringsplader i nærheden af indløbsenden er lejret om lodrette svingakser, og at føringspladerne i afstand derfra er ledforbundet med nævnte fjederorganer på en sådan måde, at føringspladerne og dermed vingeholderorganerne påvir-10 kes til at udsvinges på fortrinsvis symmetrisk måde fra hinanden om nævnte svingakser, dvs. således at den indbyrdes afstand mellem vingeholderorganerne forøges i bevægelsesretningen med henblik på successiv udstramning af vingerne i forhold til kroppen.In a preferred embodiment of the apparatus according to the invention, the wing retaining means are constituted by endless chain paths, the upper course of the chains being guided in upper grooves by vertical guide plates in such a way that the upper courses of the chains extend parallel to the chain. said guide rails close along with these, i. so that the "elbow" of the wings can be fixed between the guide rails and the individual joints of the chains, that the vertical guide plates near the inlet end are mounted about vertical pivot axes and that the guide plates are at a distance therefrom linked to said spring means in such a way that the guide plates and thus the wing holder means are influenced to oscillate in a preferably symmetrical manner from each other about said pivot axes, i. so that the spacing between the blade holder means is increased in the direction of movement in order to successively tighten the wings relative to the body.

15 På enkel måde kan apparatet være udformet således, at de endeløse kædebaner af vingeholderorganerne er drivforbundet med den tilhørende overordnede transportør via hver sin akselforbindelse og vinkelgear, der samtidigt udgør reduktionsgear, 20 idet kædebanernes fremdriftshastighed er mindre end fremdriftshastigheden af nævnte transportør, hvori kyllingerne fremføres, og at nævnte svingakser for kædebanernes føringsplader er placeret ud for akserne af nævnte drivakselforbin-delser.In simple terms, the apparatus may be designed such that the endless chain paths of the wing retaining means are drivenly connected to the associated parent conveyor via its own shaft joint and angular gears, which simultaneously constitute reduction gears 20, the chain speed of the conveyor being less than the propulsion speed of said conveyor. and that said pivot axes for the guide plates guide plates are located adjacent to the axes of said drive shaft connections.

2525

Hensigtsmæssigt udgøres de stationære knivorganer af faste, indstillelige knivblade, der ved modstående sider af kroppen er således placeret ved oversiden af indre endedele af vingerne, at indadvendende skæreægge af knivbladene ved kroppens 30 passage er i stand til at gennemskære skindet ud for vingernes basisled og blotlægge de store, nederste sener mellem vingerne og kroppen og at selve knivbladene er i stand til at presse brystkødet indad mod kroppen.Conveniently, the stationary cutter members are fixed, adjustable cutter blades which are positioned at opposite sides of the body at the upper side of inner end portions of the blades so that inward cutting edges of the cutter blades at the passage of the body 30 are capable of cutting the skin off the base joints of the blades and exposing it. the large, lower tendons between the wings and the body and that the blade blades themselves are able to push the breast meat inward towards the body.

DK 166598 B1 5DK 166598 B1 5

Med henblik på mere optimal styring af kroppen under passagen af apparatet, kan de centrale styreorganer med fordel desuden omfatte sekundære styreorganer, der ved hver side af nævnte skinne udgøres af tynde styrestænger, der er indrettet til at 5 understøtte kroppen umiddelbart indenfor vingernes basisled ud for de stationære knivorganer og ud for nævnte knivklinger.For the purpose of more optimal control of the body during the passage of the apparatus, the central control means may advantageously also comprise secondary control means, which at each side of said rail are constituted by thin guide rods arranged to support the body immediately within the base joints of the wings. the stationary knife means and next to said blade blades.

Og på særlig enkel måde er de roterende knivklinger fra sta-10 tionære, skrå positioner ved modstående sider af kroppen indenfor nævnte sekundære styrestænger indrettet til fortrinsvis samtidigt først at overskære de udstrakte sener mellem vingerne og kroppen, således at vingeknoglerne momentant rykkes fri af basisleddene, og derefter at friskære vingerne helt fra 15 kroppen.And in a particularly simple manner, the rotary blade blades from stationary, oblique positions at opposite sides of the body within said secondary guide rods are adapted to preferably simultaneously simultaneously cut the extended tendons between the wings and the body so that the wing bones are momentarily released from the base joints, and then to cut the wings completely from the body.

Opfindelsen forklares idet følgende nærmere i forbindelse med tegningen, på hvilken:- 20 Fig. 1 viser en meget forenklet principskitse til illustration af fremgangsmåde og apparat ifølge opfindelsen, fig. 2 viser ligeledes en principskitse til illustration af fremgangsmåde og apparat ifølge opfindelsen, 25 fig. 3 viser et sidebillede - delvis i snit - af en venstre halvdel af en foretrukken udførelsesform for apparatet ifølge opfindelsen, 30 fig. 4 viser et billede - set fra oven af - den i fig. 3 viste apparatdel ifølge opfindelsen, medens fig. 5 viser et detailbillede af en del af det i fig. 3 og 4 viste apparat ifølge opfindelsen.The invention is explained in the following with reference to the drawing, in which: - FIG. 1 shows a very simplified sketch of principle for illustrating the method and apparatus according to the invention; FIG. Figure 2 also shows a principle sketch for illustrating the method and apparatus according to the invention; Figure 3 shows a side view - partly in section - of a left half of a preferred embodiment of the apparatus according to the invention; 4 is a top plan view of FIG. 3, while FIG. 5 shows a detail view of a portion of the device shown in FIG. 3 and 4 according to the invention.

DK 166598 B1 6DK 166598 B1 6

En slagtet kylling 2, der er ophængt i benene 4 i en transportør, føres - som vist i fig. 1 - med rygsiden af kroppen 6 fremad i bevægelsesretningen (opad i fig. 1 ) mod et vingeaf-skæringsapparat 8, hvor kyllingen 2 i tilnærmelsesvis liggen-5 de stilling understøttet af en central V-formet skinne 10 indføres i apparatet 8, der på hver side af V-skinnen 10 omfatter vingeholderer 12. Disse består hver af vandrette styreskinner 14 , der er anbragt over øvre løb 16 af endeløse kæder 18, og som er fastgjort på indstillelig måde på modståen-10 de ydersider af lodrette føringsplader 20, der langs øvre vandrette kanter har langsgående styrespor 22 for de endeløse kæder 18. Føringspladerne 20 er i nærheden af en indføringsende 24 svingbart lejret om lodrette svingakser 26, således at føringspladerne 2 0 med henblik på at udstrække kyllingens 15 vinger 28 i forhold til kroppen 6.A slaughtered chicken 2 suspended in the legs 4 of a conveyor is fed - as shown in FIG. 1 - with the back side of the body 6 forward in the direction of movement (upwardly in Fig. 1) towards a wing cutter 8, where the chicken 2 in an approximately lying position supported by a central V-shaped rail 10 is inserted into the apparatus 8 which each side of the V-rail 10 comprises vane holders 12. These each consist of horizontal guide rails 14, which are arranged above the upper bore 16 by endless chains 18 and which are adjustably mounted on the resilient exteriors of vertical guide plates 20 which along upper horizontal edges have longitudinal guide grooves 22 for the endless chains 18. The guide plates 20 are pivotally mounted around a vertical end shaft 24 about vertical pivot axes 26, so that the guide plates 20 extend to the wings 28 of the chicken 15 relative to the body 6.

I fig. 1 er vingerne 28 fikseret i vingerholderne 12, idet vingerne indenfor "albueleddet" er fikseret mellem styreskinnerne 14 og enkelte kædeled af kæderne 18, der som nævnt er 20 styret i de vandrette styrespor 22 lang oversiderne af føringspladerne 20. Disse er - som vist i fig. 2 - i afstand fra indføringsenden 24 ledforbundet med en fælles, central fjedermekanisme 30, der er indrettet til på fortrinsvis symmetrisk måde at påvirke føringspladerne 20 med udadrettede 25 kræfter, således at føringspladerne svinges udad omkring svingakserne 26, og således at de i vingeholderne 12 fikserede vinger 28 successivt udstrækkes i forhold til kroppen 6.In FIG. 1, the blades 28 are fixed in the blade holders 12, the blades within the "elbow joint" being fixed between the guide rails 14 and individual chain links of the chains 18, which as mentioned 20 are guided in the horizontal guide grooves 22 along the upper sides of the guide plates 20. These are - as shown in FIG. FIG. 2 - spaced apart from the insertion end 24 by a common central spring mechanism 30 arranged to preferentially symmetrically actuate the guide plates 20 with outwardly directed forces, so that the guide plates are pivoted outwardly about the pivot axes 26 and so that they are fixed in the wing holders 12 wings 28 are successively extended relative to the body 6.

Fjedermekanismen 30, der omfatter en cylindrisk styrestang 32 30 for en skrue-trykfjeder 34, en spændemøtrik 36 og en på styrestangen 32 forskydeligt lejret glideklods 38. Sidstnævnte er forbundet med begge føringspladerne 20 ved hjælp af ledstænger 40, der ved modstående ender er drejeligt forbundet med glideklodsen 3 8 og føringspladerne 20. Fjedermekanismen 35 30 ses også i fig. 3 og 4, der for overskuelighedens skyld DK 166598 B1 7 kun viser en venstre halvdel (i bevægelsesretningen) af en foretrukken udførelsesform for et vingeafskæringsapparat ifølge opfindelsen.The spring mechanism 30 comprising a cylindrical guide rod 32 30 for a screw compression spring 34, a tensioning nut 36 and a sliding block 38 slidably mounted on the guide rod 32. The latter is connected to both guide plates 20 by means of guide rods 40 rotatably connected at opposite ends. with the sliding block 38 and the guide plates 20. The spring mechanism 35 30 is also seen in FIG. 3 and 4, which, for the sake of clarity, show only a left half (in the direction of movement) of a preferred embodiment of a blade cutter according to the invention.

5 Den omkring føringpladerne 2 0 førte endeløse kæde 18 drives ved hjælp af et kædehjul 42, der ved indføringsenden 24 af føringspladerne 20 er lejret mellem lejeplader 44, og som er drivforbundet med en drivaksel 4 6 via et vinkelgear 48, der samtidigt udgør et reduktionsgear, idet vingeholderkæderne 18 10 - som nævnt indledningsvis - med henblik på også at udøve et bagudrettet træk i vingerne 28 bevæges med reduceret hastighed. Svingakserne 26 for føringspladerne 20 er sammenfaldende med drivaksen 46, der er lejret i et bæreleje 49, som igen er båret af vandrette bærestænger 50, der også bærer den ikke 15 viste anden halvdel af apparatet 8. Derudover er føringspladerne 2 0 understøttet via ledstængerne 40 af fjedermekanismen 30, der er fastgjort udragende fra en opstående konsol 52 af en nedre steldel 54, der ligeledes båret af vandrette bærestænger 56, som desuden på hver sin side af føringspladerne 20 20 omfatter holderer 58 for lodrette opstandere (ikke vist) for motordrevne, roterende knivklinger 60 (fig. 2).The endless chain 18 guided around the guide plates 20 is driven by a sprocket 42, which is mounted at the insertion end 24 of the guide plates 20 between bearing plates 44 and which is connected to a drive shaft 48 via an angular gear 48, which simultaneously forms a reduction gear , as mentioned initially, in order to also exert a rearward pull in the wings 28, the blade holder chains 18 10 are moved at reduced speed. The pivot axes 26 of the guide plates 20 coincide with the drive axis 46, which is mounted in a support bearing 49, which in turn is supported by horizontal support rods 50 which also support the other half of the apparatus 8 not shown. In addition, the guide plates 20 are supported via the guide rods 40 of the spring mechanism 30 secured protruding from an upright bracket 52 of a lower frame member 54, also supported by horizontal support rods 56, which furthermore, on each side of the guide plates 20, include retainers 58 for vertical uprights (not shown) for motorized drives; rotary blade blades 60 (Fig. 2).

Den vandrette, centrale V-formede skinne 10 er fastgjort på højdeindstillelig måde ved bagsiden af konsollen 52, hvortil 25 ligeledes er fastgjort sekundære styrestænger 62 med krumme foreste endedele 64. Og som ligeledes vist i fig. 3 er den centrale v-skinne 10 ligeledes udformet med en krum forreste endedel 66, således at kroppen 6 af kyllingerne lettere styres op på V-skinnen 10. Endelig er også den forreste endedel 30 af styreskinnerne 14 udformet med en krum endedel 68, således at vingerne 28 lettere indstyres mellem kæderne 18 og styreskinnerne 14.The horizontal central V-shaped rail 10 is fixed in height adjustable manner at the rear of the bracket 52, to which 25 are also secured secondary guide rods 62 with curved front end portions 64. And as shown in FIG. 3, the central v-rail 10 is also formed with a curved front end portion 66, so that the body 6 of the chicks is more easily guided on the V-rail 10. Finally, the front end portion 30 of the guide rails 14 is also formed with a curved end part 68, thus that the blades 28 are more easily aligned between the chains 18 and the guide rails 14.

Begge de indledningsvis nævnte skæreoperationer, nemlig for-35 skæringen ved hjælp af de stationære knivblade 70 (fig. 2), DK 166598 B1 8 overskæringen af de store vingesener med de roterende knivklinger 60 samt slutafskæringen af vingerne 28 foregår ud for de sekundære styreskinner 62 - dvs. ud for den bageste ende af føringspladerne.Both of the cutting operations initially mentioned, namely the cutting by means of the stationary blade blades 70 (Fig. 2), the cutting of the large blade scenes with the rotary blade blades 60 and the final cutting of the blades 28 take place next to the secondary guide rails 62 - ie off the rear end of the guide plates.

55

De stationære knivblade 70 er som vist i fig. 2 vinkelstillet ca. 15° i forhold til apparatets centerplan i bevægelsesretningen, ca. 6,5° i forhold til vandret og ca. 78° i forhold til lodret - set fra smalsiden af knivbladene. Herved bliver 10 de stationære knivblade 70 i stand til at udføre flere samtidige funktioner, nemlig at gennemskære skindet ud for basisleddet mellem kroppen 6 og vingerne 28, at blotlægge de store, nederste vingesener og at presse brystkødet indad mod kroppen 9, således at slutafskæringen ved hjælp af de rote-15 rende knivklinger 60 kan foregå uhindret, dvs. uden at vin-geknoglerne ved basis bliver beskadiget.The stationary blade blades 70 are as shown in FIG. 2 angled approx. 15 ° to the center plane of the device in the direction of movement, approx. 6.5 ° to horizontal and approx. 78 ° relative to vertical - seen from the narrow side of the knife blades. Hereby, the stationary knife blades 70 are capable of performing several simultaneous functions, namely, cutting the skin off the base joint between the body 6 and the wings 28, exposing the large, lower wing tendons and pressing the breast meat inwardly against the body 9, so that the final cut at by means of the rotating blade blades 60 can be unobstructed, i.e. without damaging the wine bones at the base.

Også de roterende knivklinger 60 skal være vinkelindstillet på specifik måde, der imidlertid er målsat ud fra knivklin-20 gernes rotationsakse - som følger: Ca. 35° i forhold til lodret (opstander) og ca. 55° i forhold til lodret centerplan gennem apparatet.Also, the rotary blade blades 60 must be angularly set in a specific manner, however, which is targeted from the rotary axis of the blade blades - as follows: Approx. 35 ° to vertical (upright) and approx. 55 ° to the vertical center plane through the apparatus.

Det skal nævnes, at apparatet ifølge opfindelsen uden nævne-25 værdig justering er i stand til at afskærer vinger af kyllinger af meget forskellig størrelser. Fjedermekanismen 30 skal fortrinsvis indstilles således, at føringspladerne 20 og dermed vingeholderorganerne 12 er i stand til at udstrække vingerne optimalt på kyllinger med vægtforskel på ca. 800 g; men 30 apparatet kan indstillet til at behandle kyllinger med en vægt på fra ca. 800 g og helt op til ca. 2.500 g.It should be mentioned that the apparatus of the invention without appreciable adjustment is capable of cutting off wings of chickens of very different sizes. The spring mechanism 30 should preferably be adjusted such that the guide plates 20 and thus the wing holder means 12 are able to extend the blades optimally on chicks with a weight difference of approx. 800 g; but the apparatus can be set to treat chickens weighing from approx. 800 g and up to approx. 2,500 g.

Claims

A method of cutting off the wings (28) from the body (6) of slaughtered poultry, e.g. chickens (2), and by which the body (6) is advanced suspended in the legs (4) of a conveyor 5 towards a position with the back side facing and raised rearward / upward by central control means (10), the wings (28) of guide means (68) and at each side of the central control means (10) are gripped and extended outwardly of the body (6) before the blades (28) are cut by rotating blade blades, characterized in that the wings (28) ) is gripped and, with spring bias, moved out / down relative to the body, the body (6) is passed between stationary knife means (70) arranged to cut the skin near the base joints of the wings, to expose the large tendons between the body ( 6) and the wings (28) and pressing the breast meat inwardly against the body such that the tendons are cut by means of rotary knife blades (60), so that the joints of the wings are momentarily removed from the base joints in a known manner and that the wings (28) ) eventually cut completely free from the body (6) by passage of said blade blades (60).

Method according to claim 1, characterized in that the blades (28) are decelerated relative to the body (6), so that said outward / downward pull in the blades (28) furthermore receives a rearward force component, i.e. so that said tendons between the wings (28) and the body (6) are further stretched.

Apparatus for carrying out the method according to claim 1, and arranged for coordinated cooperation with a conveyor, in which slaughtered poultry, e.g. chickens (2) suspended in the legs (4) are successively advanced with the back side forward of the apparatus comprising central control means (10) adapted to support the back side of the chicken body (6) in a substantially supine position, control means (68) which on each side DK 166598 B1 10 of the central control means (10) is arranged to guide the blades (28) in the blade holder means (12), and rotary blade blades (60) arranged for cutting the blades (28) from the body (6). , characterized in that the blade holder means (129 near the insertion ends are disposed about substantially vertical pivot axes (26) and are spaced therefrom by spring means (34) adapted to actuate the wing holder means (12). to be pivoted apart, i.e. to increase in the direction of movement, the mutual distance 10 between the wing holder means (12), comprising stationary knife means (70) adapted to intersect the skin in the vicinity of The base of the joints is to expose tendons between the wings (28) and the body (6) and to press the breast meat inwards towards. and said rotary blade blades (60) are arranged to first cut said tendons so that the blade bones are momentarily removed from the base joints in a known manner and then to cut the blades (28) completely from the body.

Apparatus according to claim 3, characterized in that the guiding means comprise from above in an arc downwardly extending end portions (68) of height adjustable substantially horizontal stationary guide rails (14) arranged to fix the "elbow" of the wings to the movable wing holder means (12), said guide rails (14) extending along the upper surface of the wing holder means (12).

Apparatus according to claims 3 to 4, characterized in that the wing retaining means are constituted by endless chain paths (18), the upper course of the chains being guided in guide grooves (22) at upper edges 30 by vertical guide plates (20) in such a manner. that the upper races of the chains (18) extend parallel to said guide rails (14) close to them, i. so that the "elbow" of the wings can be fixed between the guide rails (14) and the individual joints of the chains, that the vertical guide plates (20) are located near the inlet end about vertical pivot axes (26) and that the guide plates thereof (16) (20) spaced therefrom are jointed with said spring means (34) in such a way that the guide plates (20) and thus the wing holder means (12) are actuated to pivot in a preferably symmetrical manner from each other about said pivot axes 5 (26), i.e. . so that the distance between the blade holder means (12) is increased in the direction of movement in order to successively tighten the wings (28) relative to the body.

Apparatus according to claims 3 to 5, characterized in that the 10 endless chain paths (18) of the wing retaining means (12) are driven with the associated parent conveyor via its own shaft connection and angular gears, which simultaneously constitute a reduction gear, the speed of the chain paths being less than the speed of propulsion of said conveyor in which the chicks 15 are advanced and said pivot axes (26) for the guide plates (20) of the chain webs are located adjacent to the axes of said drive shaft connections.

Apparatus according to claim 3, characterized in that the 20 stationary knife means are constituted by fixed, adjustable knife blades (70) which are positioned at opposite sides of the body (6) at the upper side of inner end portions of the wings (28), cutting edges of the knife blades (70) at the passage of the body are capable of cutting the skin off the base joints of the blades 25 and exposing the large, lower tendons between the blades (28) and the body (6) and that the blade blades (70) are capable of press the breast meat inwards towards the body (6).

Apparatus according to claim 3, characterized in that the central control means further comprise secondary control means, which are formed on each side of said rail by thin guide rods (62) arranged to support the body (6) immediately within the base of the wings. for the stationary knife means (70) and next to the blade blades (60). DK 166598 B1 12

Apparatus according to claims 3 and 8, characterized in that the rotating knife blades (70) from stationary inclined positions at opposite sides of the body (6) within the secondary guide rods (62) are arranged to preferably at the same time first cut the extended tendons between the blades (28) and the body (6) so that the wing bones are momentarily released from the base joints, and then to cut the blades (28) completely from the body (6).