JP4190705B2 - Thigh meat separation method and apparatus - Google Patents

Thigh meat separation method and apparatus Download PDF

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JP4190705B2
JP4190705B2 JP2000197936A JP2000197936A JP4190705B2 JP 4190705 B2 JP4190705 B2 JP 4190705B2 JP 2000197936 A JP2000197936 A JP 2000197936A JP 2000197936 A JP2000197936 A JP 2000197936A JP 4190705 B2 JP4190705 B2 JP 4190705B2
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thigh
bone
thigh meat
separator
meat
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JP2002010732A (en
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昭三 神津
武 池谷
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Mayekawa Manufacturing Co
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Mayekawa Manufacturing Co
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    • AHUMAN NECESSITIES
    • A22BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22CPROCESSING MEAT, POULTRY, OR FISH
    • A22C21/00Processing poultry
    • A22C21/0069Deboning poultry or parts of poultry
    • A22C21/0076Deboning poultry legs and drumsticks

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  • Life Sciences & Earth Sciences (AREA)
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Description

【0001】
【発明の属する技術分野】
本発明は、食肉用屠体、特に食鶏の骨付き腿肉の足首を支持して脱骨手段や人手により、脛骨、膝関節の脱骨についで大腿骨の脱骨と腿肉を大腿骨末端より分離する骨付き腿肉の腿肉分離方法とその装置に関する。
【0002】
【従来の技術】
近時、食用鳥獣の飼育、屠殺、及び屠体の処理は著しく大規模となり、製品の無菌化と低温処理が要求されるなかで、各種作業の自動化が進められている。
食鶏においての屠体処理は、屠鳥から放血、脱羽を経てブロイラー屠体までの1次解体工程と、前記ブロイラー屠体の冷却後、各部位別に分割及び脱骨を行なうことにより、正肉や副産物を生産し包装保管する2次解体工程とに大きく分けることができる。
前記1次解体工程は屠鳥から脱羽、洗浄まで自動化が行なわれ、その間は殆ど無人で処理されている。
また、2次解体工程では、搬送用コンベアを除いて包丁と俎による人手による労働集約的処理が行なわれてきたが、最近は屠体の上下半身の分離より、腿肉部の取り外しや胸肉部の取り外し等の各部位別の分割や、分割した各部位の脱骨の自動化が進められている。
【0003】
前記屠体より分離した腿肉の脱骨については、好適な脱骨方法とその装置が本発明者等により夙に提案され屠体処理の自動化に貢献している。
前記脱骨装置は、図8に示す骨付き腿肉10より脛骨11の脱骨E、膝関節12の脱骨F、大腿骨13の脱骨Gを足首筋入れカット位置11a、膝関節12の上部の腱カット位置12a、膝関節12の下部の腱カット位置12bを介在させた中で行なうようにしたものである。
なお、脱骨完了線13b付近では、腿肉が大腿骨頭13aに図示しない筋接続部位で付着しているため、前処理または後処理として別に処理されている。
【0004】
その構造は、図9(A)の模式的平面図、及び(B)の模式的側面図に示す実施例に見るように、ベーステーブル51の中心に中心軸52が設けられ、該中心軸の周りにステーションS1〜S7が配設され、各ステーションには脱骨挟叉手段を形成するミートセパレータ56、及びカッタ54、55、54a、54bの少なくとも何れか一方が配設されている。
また、前記ベーステーブル51の一端にワークである骨付き腿肉10を搬入するコンベア63及び脱骨された腿肉を搬出する図示しないコンベア63aが設けられ、また、前記各ステーションS1〜S7に対応させて図の(B)に示すようにクランパ57が設けられ、骨付き腿肉10の足首部を把持または放出できる構造にしてあるとともに、昇降ロッド58を介して矢印j方向に昇降可能に構成され、且つ中心軸52を回動中心として45度づつ間欠的に回動可能の構造にしてある。
【0005】
前記ミートセパレータ56は、図10の模式図に示すように、枢支軸56aに傾動可能に枢支された1対のアーム56b、56cよりなり、該アーム56b、56cの自由端には肉押し板56d、56eを固着させるとともに、スプリングspにより前記固着した肉押し板56d、56eを上下に挟叉させ、該肉押し板に設けてある半円状切り欠きを介して骨付き腿肉10のくるぶし付近の骨部を押圧可能に挟持できる構造にしてある。
そこで、骨付き腿肉10の足首を挟持した前記クランパ57を上昇させれば、前記肉押し板56d、56eに設けた半円状切り欠きにより骨部より肉部を剥ぎ落とすことができ、所用の脱骨を可能とする構造にしてある。
【0006】
上記構成の脱骨装置により、ステーションS1で搬入コンベア63により供給された骨付き腿肉10をクランパ57にセットするとともに、縦方向の筋入れを行なう。ついで、S2で骨付き腿肉のくるぶし付近に輪状の切れ目を入れる。ついで、S3でひ骨に付着した腱を切断する。ついでS3〜S4の間でミートセパレータ56を介して脛骨11より肉部を引き剥がす脱骨Eを行い、腱カット位置12aを露出させる。ついで、S6で露出した膝関節12の上部の腱カット位置12aを切断するとともに、膝関節12付近の肉部を引き剥がす脱骨Fを行なう。ついで、S7で膝関節12の下部の腱カット位置12bの切断とともに大腿骨より肉部を引き剥がす脱骨Gを行なう。
引き剥がしを完了した骨と腿肉にはその間を結ぶ筋接続部位の切断を行なわずに腿肉分離処理未了のまま搬出コンベア63aより搬出する。
【0007】
上記したように、大腿骨末端よりの腿肉分離の問題は未だ未解決で、脱骨解体から整形処理への円滑な移行を妨げる一因を形成し、何らかの解決が望まれている。
【0008】
【発明が解決しようとする課題】
本発明は、上記問題点に鑑みなされたもので、大腿骨末端よりの腿肉分離を可能とすべく、腿肉引き剥がしが終了した時点における腿肉引き剥がし終了位置の正確な位置決めと、該位置の安定した検出を可能とした、大腿骨末端の腿肉分離方法とその装置の提供を目的とするものである。
【0009】
【課題を解決するための手段】
そこで、本発明の腿肉分離方法は、
骨付き腿肉の脛骨と大腿骨の間の膝関節より下側に位置する腿肉の引き剥がしと分離を行なう腿肉分離方法において、
膝関節を形成する脛骨骨頭と大腿骨骨頭の付け根部位を夫々把持する2つの凹部を備え、前記凹部により、膝関節の上下に位置する脛骨骨頭と大腿骨骨頭の付け根部位を一体的に把持する膝関節把持工程と、
膝関節上下把持部の把持中心をよぎる鉛直軸芯と交叉する方向であって、骨面よりの離接方向に固定である固定セパレータと、該固定セパレータと挟叉する方向に可動な可動セパレータとからなるセパレート手段を用意し、
前記固定セパレータに設けた切り欠きと可動セパレータに設けた切り欠きとにより骨付き腿肉の骨部を、前記膝関節下側で挟持させた後、前記骨部位とセパレータの両者を骨面に沿って相対移動させながら腿肉の引き剥がしを行なう腿肉引き剥がし工程と、
前記セパレート手段と骨部位間の骨軸方向の相対移動により前記大腿骨頭の膨らみに追従させて前記可動セパレータを揺動させて、その揺動変位を利用して腿肉引き剥がし終了位置を検出する位置検出工程と、を含むことを特徴とする。
【0010】
本発明は、既設の脱骨手段または手作業を介して、
脛骨の脱骨、膝関節の脱骨の終了したワークに対して行なうようにした、大腿部の腿肉引き剥がしについで大腿骨頭末端の筋切断により腿肉の大腿骨頭より完全分離をさせる、腿肉分離方法に関するものである。
【0011】
前記大腿骨末端の腿肉分離のために行なう大腿骨頭末端と腿肉との間を結ぶ筋切断を正確且確実に行なうためには、筋切断位置の位置決めを正確に行なう必要がある。そのためには、ミートセパレート手段による大腿骨頭末端にいたる腿肉の引き剥がし終了位置の位置決めを正確に行なう必要がある。
則ち、前記ミートセパレート手段による大腿骨よりの腿肉引き剥がしは、膝関節上部の骨部位とミートセパレート手段との骨面に沿っての相対的位置関係の移動により行なわれるが、大腿骨頭の膨らみにおける腿肉の引き剥がしに際しての、ミートセパレータ手段により与えられる引き剥がし抵抗の増大により惹起される膝関節部の伸縮、延いては脱臼等の変位を皆無とする必要がある。
【0012】
そこで、本発明では、前記膝関節における変位を皆無とする膝関節の上下を一体把持する膝関節把持工程と、
前記一体把持した膝関節の上部骨部位と骨部に沿ってのミートセパレート手段との相対的位置関係の移動により、腿肉の骨部よりの刮ぎ落としを行なう腿肉引き剥がし工程と、
前記引き剥がしの大腿骨末端における前記腿肉の引き剥がし終了位置の設定のための、ミートセパレート手段が引き剥がしの終了間際の大腿骨頭の膨らみより、惹起される可動セパレータの揺動変化を利用して前記終了位置の位置検出をする位置検出工程と、
を設けるようにしたものである。
【0013】
請求項1記載の位置検出工程は、その検出信号に基づいて前記セパレート手段と骨部位間の相対移動を停止させた後、前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断するカッタの挿入と切断操作をさせて大腿骨末端より腿肉の分離を行なうようにさせたことを特徴とする。
【0014】
上記請求項2記載の発明により、前記位置検出工程により終了位置の検出信号を介して前記腿肉引き剥がしを停止させ、ついで引き剥がしにより露出した大腿骨頭末端と腿肉との間を結ぶ筋接続部位の切断を、付隋するカッタの挿入と切断操作により行うようにしたものである。
【0015】
また、請求項1記載の位置検出工程は、その検出信号に基づいて前記セパレート手段の揺動部位に一体構造に付設したカッタを介して、前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断させ、セパレート手段と骨部位間の相対移動を停止させることなく、大腿骨末端より腿肉の分離を行なうようにさせたことを特徴とする。
【0016】
上記請求項3記載の発明により、前記位置検出工程により引き剥がし終了位置の検出信号を介してセパレート手段の揺動部位に一体構造に付設したカッタを駆動させ、前記揺動部位の揺動に基づいて露出した大腿骨頭末端と腿肉との間を結ぶ筋接続部位の切断を、セパレート手段と骨部位間の相対移動を停止することなく行うようにしたものである。
【0017】
また、請求項1記載の位置検出工程は、その検出信号に基づいて作動するデジタル制御機構を介して、前記セパレート手段と骨部位間の相対移動の停止と、前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断するカッタの挿入と切断操作とを行なわせて、大腿骨末端より腿肉の分離を行なうようにさせたことを特徴とする。
【0018】
上記請求項4記載の発明により、前記位置検出工程により得られた可動セパレータの傾動角の変位をパルス信号で入力させ、引き剥がし終了位置に基づいて作動するようにしたデジタル制御機構により、前記腿肉引き剥がしの停止と、露出した大腿骨頭末端と腿肉との間を結ぶ筋接続部位の切断を別途設けたカッタによる切断位置への挿入と切断動作と、を正確に行うようにしたものである。
【0019】
請求項5記載の発明は、前記腿肉引き剥がし工程が、前記固定セパレータに設けた切り欠きと可動セパレータに設けた切り欠きとにより骨付き腿肉の骨部の挟持中心が前記膝関節上下把持部の把持中心と一致する一定加圧のもとに挟持させた後、前記骨部位とセパレータの両者を骨面に沿って相対移動させながら腿肉の引き剥がしを行なう腿肉引き剥がし工程であることを特徴とする。
【0020】
上記発明により、骨部より腿肉の引き剥がしに際し、骨部位に掛かる張力により惹起される膝関節の伸縮及び横方向のずれ、脱臼等の変位を皆無とするため、膝関節の上下の脛骨の骨部と大腿骨の骨部を確実に把持するようにしてある。
【0021】
また、前記請求項1記載の腿肉引き剥がし終了位置の位置検出が、前記セパレート手段に設けた変位増幅手段により形成された増幅変位の検出であり、該変位の増幅は腿肉引き剥がしが大腿骨頭末端より筋接続部位に移行する過程で行なわれることを特徴とする。
【0022】
上記請求項6記載の発明により、大腿部の腿肉引き剥がし終了間際に際して、ミートセパレート手段が受ける大腿骨頭末端部位に差し掛る過程での揺動変位を拡大増幅するようにしたもので、特にその拡大増幅は大腿骨頭の末端より筋接続部位への移行に伴い起きる顕著な直径の減少を利用したものである。
【0023】
そして、上記発明の腿肉分離方法を使用した請求項7記載の腿肉分離装置は、
骨付き腿肉の脛骨と大腿骨の間の膝関節より下側に位置する腿肉の引き剥がしを行なうセパレート手段と引き剥がし後の腿肉分離を行なうカッタとを備えた腿肉分離装置において、
膝関節を形成する脛骨骨頭と大腿骨骨頭の付け根部位を夫々把持する2つの凹部を備え、前記凹部により、膝関節の上下に位置する脛骨骨頭と大腿骨骨頭の付け根部位を一体的に把持する膝関節把持手段と、
膝関節上下把持部の把持中心をよぎる鉛直軸芯と交叉する方向であって、骨面よりの離接方向に固定である固定セパレータと、該固定セパレータと挟叉する方向に可動な可動セパレータとからなるセパレート手段と、
前記固定セパレータに設けた切り欠きと可動セパレータに設けた切り欠きとにより骨付き腿肉の骨部を、前記膝関節下側で挟持させた後、前記骨部位とセパレータの両者を骨面に沿って相対移動させながら腿肉の引き剥がしを行なう移動手段と、
前記セパレート手段と骨部位間の骨軸方向の相対移動により前記大腿骨頭の膨らみに追従させて前記可動セパレータを揺動させて、その揺動変位を利用して腿肉引き剥がし終了位置を検出する位置検出手段と、
前記位置検出手段による検出信号に基づき前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断するカッタの挿入切断操作により大腿骨末端よりの腿肉分離を行なうカッタ駆動手段と、
を含むことを特徴とする。
【0024】
また、請求項7記載の位置検出手段は、可動セパレータの傾動角の変位量により引き剥がし終了位置を検出するデジタル制御機構を設けるとともに、前記可動セパレータは奥側に凹状通路とそれに繋がる***を有する切り欠きを設け、前記凹状通路幅が、大腿骨径より小で筋接続部位より大であり、大腿部の脱骨終了時に大腿骨頭下部と腿肉とを結ぶ筋接続部位が、前記傾動する可動セパレータの凹状通路に誘導され***に収納させる構造にしてあることを特徴とする。
【0025】
上記請求項8記載の発明により、請求項7記載の腿肉分離装置の位置検出手段による可動セパレータの傾動角の変位量をパルス入力させ、該パルス量の変化により引き剥がし終了位置を検出するようにしたデジタルサーボ制御機構を設け、該機構を介して前記腿肉引き剥がしを行なう移動手段の停止と腿肉の筋接続部位をカットするカッタの挿入と切断操作をデジタル制御して正確に行なうようにしたものである。
【0026】
【0027】
前記発明により、膝関節には膝関節部を挟む脛骨と大腿骨のそれぞれの骨部を把持する上下二段把持手段を設け、その下部にミートセパレート手段の引き剥がし面を当接させ、その当接位置を腿肉引き剥がし工程の初期引き剥がし開始位置としたものである。
【0028】
【0029】
又上記請求項8記載の発明により、セパレート手段を構成する固定セパレータ及び可動セパレータにはそれぞれ切り欠きを設け、腿肉引き剥がしの際互いに挟叉する固定セパレータと可動セパレータの切り欠きにより骨部を挟み腿肉を刮ぎ落とすようにしてあるが、その切り欠きの奥に前記固定セパレータないし可動セパレータの何れかに凹状通路を設け、その幅を大腿骨の径より小さく筋接続位より大きくして、大腿骨を挟持する間は入り口の切り欠きでその挟持を行い、筋接続部位に移行した後はその挟持部が前記凹状通路に移行するようにしてある。
【0030】
【0031】
上記請求項8記載の発明により、ミートセパレータは大腿骨面に対し固定させ、可動セパレータを固定セパレータの反対方向に可動するように設け、該可動セパレータには切り欠きの奥に凹状通路を形成するスリットを介して***を設け、筋接続部位の挟叉時には挟持する筋接続部位を切り欠きの奥深く誘導して***に収納するまで深く傾動させ、増幅したその揺動変位をセンサにより確実且安定した検出を可能としたものである。
【0032】
前記請求項7記載の可動セパレータとカッタとを一体的に骨軸方向に移動可能に構成し、前記***に筋接続部位を収納させた状態で、カッタを侵入させて大腿骨末端より腿肉の分離を可能とする構成としたことを特徴とする。
【0033】
上記請求項9記載の発明により、前記可動セパレータとカッタとを一体構造にして骨軸方向に一体に移動する構造にしたため、前記対向部位の移動は、センサを介して引き剥がし終了信号を出力するが、該出力信号によりカッタの切断操作は作動し、作動したカッタは前記可動セパレータと一体に動くため、カッタのカット位置を移動させることなく自動的に前記筋接続部位の切断ができる。そして前記自動的切断は、前記検出信号による骨部位と腿肉との間の相対移動を停止させることなく行なうことができる。
【0034】
【発明の実施の形態】
以下、本発明を図に示した実施例を用いて詳細に説明する。ただし、この実施の形態に記載されている構成部品の寸法、材質、形状、その相対的配置などは特に特定的な記載がない限りは、この発明の範囲をそれのみに限定する趣旨ではなく、単なる説明例にすぎない。
図1は本発明の腿肉分離装置の概略の構成を示す図で、図2は図1の膝関節上下把持部の概略の構成を示す図で、図3は図1のミートセパレータの概略の構成を示す図で、(A)は斜視図で、(B)は可動セパレータの切り欠き部を示す図である。図4は図1の示す腿肉分離装置において、可動セパレータの傾動角の変位量をパルスジェネレータのカウント値により引き剥がし終了位置を検出するデジタル制御機構を設け、該機構を介して、引き剥がしの停止をさせるクランパ昇降用サーボモータの制御、停止と同時に行われるカッタの挿入用サーバモータ制御と、カット用モータの制御の状況を示すブロック図である。図5は図4のデジタル制御に使用する構成要素の配置状況を示す図である。図6は図1の可動セパレータに切断用カッタを一体構造に設けた状況を示す図である。
【0035】
図1に見るように、本発明の腿肉分離装置は、既設の脱骨手段によりワークである骨付き腿肉10の足首先端をクランパ57により支持して行なった脛骨、膝関節の脱骨についで、共用する前記クランパ57を介して行なう大腿骨の腿肉引き剥がしと引き剥がした大腿骨末端より腿肉を分離をする腿肉分離装置であって、昇降可能な膝関節上下把持部15と、固定セパレータ20とその対向部材である可動セパレータ22とよりなるミートセパレータ23と、引き剥がし終了位置の位置検出センサ30と、筋切断カッタ31と、より構成する。
なお、この場合の腿肉引き剥がしに使用する移動手段は、クランパ57の図示しない昇降機構と後記する引き上げガイドシャフト16とにより構成する。
【0036】
図2には図1の膝関節上下把持部15の概略の構成が示してある。
図に見るように、膝関節上下把持部15は、引き上げガイドシャフト16と該シャフトに昇降可能の摺動部に設けた筐体17と膝関節12を形成する脛骨骨頭12cと大腿骨骨頭12dの付け根部位を把持する凹部18a、18bを備えた二段把持部材18よりなり、前記二段把持部材18は前記凹部18a、18bを介して脛骨骨頭12c及び大腿骨骨頭12dの付け根の小径部を把持して筐体17に嵌合ロックする構成とし、膝関節の外力による伸縮や左右前後のずれ、ねじれ、脱臼等の変位を防止する構成にしてある。
そして前記膝関節12を収納した筐体17はガイドシャフト16の摺動体16aに固着されている。また、ガイドシャフト16は、膝関節の上部足首を支持するクランパ57の昇降につれ膝関節上下把持部15が正しく鉛直運動するように構成にしている。
【0037】
図3には図1の前記ミートセパレート手段を構成するミートセパレータ23の概略の構成が示され、(A)には斜視図が示されてある。
前記ミートセパレータ23は固定セパレータ20とその対向部材である可動セパレータ22とよりなる。
固定セパレータ20は骨軸方向に押圧自在に設けた取り付け部材21を介して図示しない構造部材を介して水平に設けるとともに、その水平軸心Y−Yは前記膝関節上下把持部15の把持中心をよぎる鉛直軸芯と交叉するように設け、前記水平軸芯Y−Y上にV字型切り欠きを設け、後記する可動セパレータ22に設けたV字型切り欠き22aとによりワーク10の骨部を一定加圧のもとに挟持させ、挟持中心が前記膝関節上下把持部15の把持中心と一致する構成にしてある。
【0038】
前記可動セパレータ22は回動軸芯Z−Zを介して矢印A方向に傾動可能に設け、スプリング29b及び作動アーム29aを介して前記矢印A方向に付勢して、前記固定セパレータの下部で挟叉し、上記したようにワーク10の骨部を前記V字型切り欠き20a、22aとにより挟叉し、それぞれに設けた切り欠きにより骨部を挟持しクランパ57の上昇に伴い腿肉を骨部より刮ぎ落とし、脱骨を行なうようにしてある。
【0039】
前記V字型切り欠き22aには、図3(B)に示すように、その軸芯Y−Y上にスリット22bとそれに繋がる***22cを設け、大腿部の脱骨終了時に大腿骨頭下部と腿肉とを結ぶ筋接続部位が、前記スプリングの付勢力により傾動する可動セパレータ22のスリット22bに誘導され***22cに収納させる構造にしてある。そして前記収納により、可動セパレータの揺動変位は増幅され、腿肉引き剥がし終了位置の検出を正確に行なう構造にしてある。
則ち、前記可動セパレータの***22cへの筋接続部位の誘導により大きな傾動角の変位を惹起させ、大きく回動した検出ドック25の先端は引き剥がし終了位置検出センサ30により検出される。該センサよりの検出信号により腿肉と可動セパレータとの間の相対移動は停止させるとともに、筋切断カッタ31は切断位置への挿入と切断操作の作動により、筋接続部位13cを正確に切断できるようにしてある。
【0040】
図4には、図1に示す腿肉分離装置において、可動セパレータの傾動角の変位量をパルスジェネレータのカウント値により引き剥がし終了位置を検出するデジタル制御機構を設け、該機構を介して、引き剥がしの停止をさせるクランパ昇降用サーボモータの制御、停止と同時に行われるカッタの挿入用サーボモータ制御と、カット用モータの制御の状況を示すブロック図が示してあり、図5には図4のデジタル制御に使用する構成要素の配置状況を示す図である。
前記図4に示すように、前記引き剥がし終了位置検出センサ30の代りに可動セパレータ22の傾動角を検出するパルスジェネレータ32を設け、該パルスジェネレータ32のパルス信号により作動するディジタル制御機構36を設け、該制御機構36の出力により、クランパ57のクランパ昇降用サーボモータ35及びカッタ挿入用サーボモータ34、カット用モータ33の作動制御をして、大腿骨の脱骨終了位置の検出、前記筋接続部位13cの切断を可能とし、高効率の腿肉分離を行なうようにしても良い。
【0041】
なお、前記筋切断カッタの切断位置への移動は、図5に示すように回動アーム37を介してカッタ挿入用サーボモータ34、ギヤ連34a、37aの駆動によるか、または図6に示すように切断用カッタ31aを傾動する可動セパレータ22に一体構造に設けても良い。
この場合は、可動セパレータ22の***22cへの筋接続部位13cの誘導により大きな傾動角の変位を惹起させたとき、前記一体構造の筋切断カッタ31aは自動的に切断位置に挿入されカット用モータ33の駆動を介してカットできる構造にしてある。そして、切断時には前記腿肉と可動セパレータとの間の相対移動を停止することなく前記筋接続部位13cの前記***22cへの誘導とともに前記筋接続部位の切断を行なうことができる。
【0042】
図7には、図1に示す腿肉分離装置により腿肉と骨の分離の状況を示してある。
図に示す工程(1)において、既設脱骨手段の前工程の膝関節脱骨が終了した ワーク10をクランパ57により搬入させ、搬入された骨付き腿肉10の膝関節1 2を膝関節上下把持部15へ導入する。
ついで、工程(2)で膝関節12を膝関節上下把持部15で関節上下の骨部を把持して、脱骨時の膝関節脱臼、伸縮、ねじれ等の変位を防止可能の状態にする。
ついで、工程(3)で可動セパレータ22を固定セパレータ20に挟叉させ、骨付き腿肉10の膝関節下にその引き剥がし面を当接させ、腿肉引き剥がし開始位置を設定させるとともにクランパ57を上昇させ、大腿部の脱骨を開始して、大腿骨頭下端の筋接続部位の露出部まで脱骨させる。
ついで、工程(4)で前記筋接続部位13cは***22cにスリット22bに誘導され収納される。
その結果、可動セパレータ22は大きく傾動し、引き剥がし終了位置検出センサ30は可動セパレータの検出ドック25を検出し、筋切断カッタ31の切断位置への挿入と切断操作は作動し筋接続部位の切断は正確に行なわれる。
ついで、工程(5)で骨部10dと肉部10eは完全に分離する。
【0043】
【発明の効果】
腿肉の大腿骨よりの腿肉分離に際して、膝関節上下把持部により腿肉引き剥がし終了位置の正確な位置決めを可能とし、可動セパレータに設けた誘導スリットとそれに繋がる***により筋接続部位を収納するようにしたため、安定した検出を可能とした、腿肉分離方法とその装置を提供できる。
【図面の簡単な説明】
【図1】 本発明の腿肉分離装置の概略の構成を示す図である。
【図2】 図1の膝関節上下把持部の概略の構成を示す図である。
【図3】 図1のミートセパレータの概略の構成を示す図で、(A)は斜視図で、(B)は可動セパレータの切り欠き部を示す図である。
【図4】 図1の示す腿肉分離装置において、可動セパレータの傾動角の変位量をパルスジェネレータのカウント値により引き剥がし終了位置を検出するデジタル制御機構を設け、該機構を介して、引き剥がしの停止をさせるクランパ昇降用サーボモータの制御、停止と同時に行われるカッタの挿入用サーボモータ制御とカット用モータの制御の状況を示すブロック図である。
【図5】 図4のデジタル制御に使用する構成要素の配置状況を示す図である。
【図6】 図1の可動セパレータに切断用カッタを一体構造に設けた状況を示す図である。
【図7】 図1の示す腿肉分離装置による腿肉と骨の分離の状況を示す図である。
【図8】 骨付き腿肉の骨部の構造と脱骨のための筋入れ等の切断箇所を示す図である。
【図9】 従来の骨付き腿肉の脱骨処理装置の概略の構成を示す図で、(A)は模式的平面図で、(B)は同じく側面図である。
【図10】 従来のミートセパレータの概略の構成を示す図である。
【符号の説明】
10 骨付き腿肉
10d 骨部
10e 肉部
11 脛骨
12 膝関節
13 大腿骨
13a 大腿骨頭
13c 筋接続部位
15 膝関節上下把持部
16 引き上げガイドシャフト
17 筐体
18 二段把持部材
20 固定セパレータ
22 可動セパレータ
23 ミートセパレータ
25 検出ドック
30 引き剥がし終了位置検出センサ
31、31a 筋切断カッタ
32 パルスジェネレータ
33 カット用モータ
34 カッタ挿入用サーボモータ
35 クランパ昇降用サーボモータ
36 デジタル制御機構
37 回動アーム
[0001]
BACKGROUND OF THE INVENTION
The present invention supports a carcass for meat, in particular, an ankle of a bone-fed thigh meat of a chicken, by deboning means or by hand, followed by deboning of the femur and thigh meat by thighbone and knee joint deboning. The present invention relates to a thigh meat separation method and apparatus for bone thigh meat separated from the end.
[0002]
[Prior art]
In recent years, breeding of edible birds and beasts, slaughtering, and processing of carcasses have become remarkably large scale, and automation of various operations has been promoted as sterilization of products and low-temperature processing are required.
The carcass treatment in poultry chickens is carried out by performing the primary dismantling process from the slaughtered birds to blood discharge, depilation and broiler carcass, and after the broiler carcass has been cooled, it is divided and deboned for each part. It can be broadly divided into a secondary dismantling process for producing and storing meat and by-products.
The primary dismantling process is automated from slaughtering to feather removal and washing, and during that time, it is almost unattended.
Also, in the secondary dismantling process, manual labor-intensive processing with a knife and scissors has been performed except for the conveyer, but recently, the upper and lower halves of the carcass have been separated and the thigh meat has been removed and breast meat has been removed. The division of each part such as removal of a part and the automation of deboning of each divided part are being promoted.
[0003]
Regarding the deboning of the thigh meat separated from the carcass, a suitable deboning method and its apparatus have been proposed by the present inventors to the autopsy of the carcass processing.
The above deboning apparatus removes the tibia 11 from the thigh meat 10 shown in FIG. 8, the deboning F of the knee joint 12, and the deboning G of the femur 13 from the ankle muscle insertion cut position 11 a and the knee joint 12. This is performed while interposing an upper tendon cut position 12a and a lower tendon cut position 12b of the knee joint 12.
In the vicinity of the deboning completion line 13b, since the thigh meat is attached to the femoral head 13a at a muscle connecting portion (not shown), it is processed separately as pre-processing or post-processing.
[0004]
As shown in the embodiment shown in the schematic plan view of FIG. 9A and the schematic side view of FIG. 9B, the structure is provided with a central axis 52 at the center of the base table 51. Stations S1 to S7 are disposed around each station, and each station is provided with at least one of a meat separator 56 and a cutter 54, 55, 54a, 54b that form a deboning and clamping means.
Further, a conveyor 63 for carrying the bone-in thigh 10 as a work and a conveyor 63a (not shown) for carrying out the deboned thigh are provided at one end of the base table 51, and correspond to the stations S1 to S7. As shown in FIG. 5B, a clamper 57 is provided so that the ankle of the thigh meat 10 with bone can be grasped or released, and can be moved up and down in the direction of the arrow j via the lifting rod 58. In addition, the structure is such that it can be rotated intermittently by 45 degrees with the central shaft 52 as the rotation center.
[0005]
As shown in the schematic diagram of FIG. 10, the meat separator 56 includes a pair of arms 56b and 56c pivotally supported by a pivot shaft 56a. The plates 56d and 56e are fixed, and the fixed meat pressing plates 56d and 56e are vertically sandwiched by a spring sp, and the thigh meat 10 with bone is formed through a semicircular cutout provided in the meat pressing plate. The structure is such that the bone near the ankle can be clamped so as to be pressed.
Therefore, if the clamper 57 holding the ankle of the thigh meat with bone 10 is raised, the meat part can be peeled off from the bone part by the semicircular cutout provided in the meat pushing plates 56d and 56e. It has a structure that enables deboning.
[0006]
The bone removing thigh 10 supplied by the carry-in conveyor 63 at the station S1 is set on the clamper 57 and the vertical streak is performed by the deboning apparatus having the above configuration. Next, in S2, a ring-shaped cut is made near the ankle of the thigh meat with bone. Next, the tendon attached to the fibula is cut in S3. Next, deboning E is performed between the S3 and S4 through the meat separator 56 to peel the flesh from the tibia 11 to expose the tendon cut position 12a. Next, at step S6, the tendon cut position 12a at the upper part of the knee joint 12 exposed is cut, and at the same time, the deboning F is performed to peel off the meat part near the knee joint 12. Next, in step S7, bone removal G is performed to cut the tendon cut position 12b below the knee joint 12 and to peel the flesh from the femur.
The bone and thigh meat that have been peeled off are carried out from the carry-out conveyor 63a without cutting off the thigh-separating portion without cutting the muscle connecting portion connecting them.
[0007]
As described above, the problem of separation of the thigh meat from the end of the femur has not been solved yet, and a solution to the smooth transition from deboning to shaping processing is formed, and some solution is desired.
[0008]
[Problems to be solved by the invention]
The present invention has been made in view of the above problems, and in order to enable separation of the thigh meat from the end of the femur, accurate positioning of the thigh meat peeling end position when the thigh meat peeling is completed, An object of the present invention is to provide a method and apparatus for separating the thigh meat at the end of the femur, which enables stable position detection.
[0009]
[Means for Solving the Problems]
Therefore, the thigh meat separation method of the present invention,
In the thigh meat separation method for peeling and separating the thigh meat located below the knee joint between the tibia and thigh bone of the thigh with bone,
Two recesses for holding the base portions of the tibial head and the femoral head forming the knee joint are provided, and the base portions of the tibial head and the femoral head positioned above and below the knee joint are integrally gripped by the recess. A knee joint grasping process;
A fixed separator that crosses the vertical axis that crosses the grip center of the upper and lower knee joints, and is fixed in a direction away from the bone surface; a movable separator that is movable in a direction sandwiched between the fixed separator; Prepare a separate means consisting of
After the bone part of the thigh with bone is clamped below the knee joint by the notch provided in the fixed separator and the notch provided in the movable separator, both the bone part and the separator are aligned along the bone surface. Thigh meat peeling process of peeling the thigh meat while moving it relatively,
The movable separator is swung by following the swelling of the femoral head by relative movement between the separating means and the bone part in the direction of the bone axis, and the thigh meat peeling end position is detected using the swinging displacement. And a position detecting step.
[0010]
The present invention, through existing deboning means or manual work,
For tibial deboning and knee joint deboning work, the thigh flesh was peeled off and then the femoral head was completely separated from the femoral head by muscle cutting at the end of the femoral head. The present invention relates to a thigh meat separation method.
[0011]
In order to accurately and reliably perform the muscle cutting between the femoral head end and the thigh meat for the separation of the thigh meat at the end of the femur, it is necessary to accurately position the muscle cutting position. For this purpose, it is necessary to accurately position the end position of the peeling of the thigh meat leading to the femoral head end by the meat separating means.
That is, the flesh peeling from the femur by the meat separating means is performed by moving the relative positional relationship along the bone surface between the bone portion of the upper knee joint and the meat separating means. It is necessary to eliminate any displacement such as expansion / contraction of the knee joint part caused by an increase in the peeling resistance given by the meat separator means, and further dislocation, at the time of peeling off the thigh meat in the swelling.
[0012]
Therefore, in the present invention, a knee joint grasping step of grasping the upper and lower parts of the knee joint with no displacement in the knee joint,
The thigh meat peeling step of removing the thigh meat from the bone part by moving the relative positional relationship between the upper bone part of the knee joint gripped integrally and the meat separating means along the bone part,
The separation of the movable separator, which is caused by the swelling of the femoral head just before the end of the peeling by the meat separating means for setting the end position of the peeling of the thigh meat at the end of the thighbone of the peeling, is utilized. A position detecting step for detecting the position of the end position;
Is provided.
[0013]
The position detecting step according to claim 1, after stopping the relative movement between the separating means and the bone part based on the detection signal, cuts the muscle connecting part of the thigh meat connected to the distal end of the femoral head. The thigh meat is separated from the end of the femur by inserting and cutting the cutter.
[0014]
According to the second aspect of the present invention, the thigh meat stripping is stopped by the position detection step through the end position detection signal, and then the muscle connection connecting the thigh meat head end exposed by the peeling and the thigh meat The part is cut by inserting and cutting a cutter to be attached.
[0015]
Further, the position detection step according to claim 1 is characterized in that the thigh muscle muscle connection connected to the distal end of the femoral head via a cutter attached to the swinging part of the separating means on the basis of the detection signal. The part is cut, and the thigh meat is separated from the end of the femur without stopping the relative movement between the separating means and the bone part.
[0016]
According to the third aspect of the present invention, the cutter attached to the integral structure is driven on the swinging portion of the separating means via the detection signal of the peeling end position in the position detecting step, and based on the swinging of the swinging portion. The muscle connecting part connecting the exposed femoral head end and the thigh meat is cut without stopping the relative movement between the separating means and the bone part.
[0017]
The position detecting step according to claim 1 is connected to the distal end of the femoral head and the stop of relative movement between the separating means and the bone part via a digital control mechanism that operates based on the detection signal. It is characterized in that the thigh meat is separated from the end of the femur by inserting and cutting a cutter for cutting the muscle connecting portion of the thigh meat.
[0018]
According to the fourth aspect of the present invention, the thigh angle displacement of the movable separator obtained by the position detecting step is inputted as a pulse signal, and the thigh is operated by the digital control mechanism that operates based on the peeling end position. Insertion to the cutting position and cutting operation with a cutter provided separately to stop meat peeling and to cut the muscle connection site connecting the exposed femoral head end and thigh meat accurately. is there.
[0019]
According to a fifth aspect of the present invention, in the thigh meat peeling step, the holding center of the bone part of the thigh meat with bone is grasped up and down by the knee joint by the notch provided in the fixed separator and the notch provided in the movable separator. This is a thigh meat peeling process in which the thigh meat is peeled off while the bone part and the separator are relatively moved along the bone surface after being held under a constant pressure coincident with the gripping center of the part. It is characterized by that.
[0020]
According to the above invention, when the thigh meat is peeled off from the bone part, the knee joint expands and contracts and the displacement in the lateral direction, dislocation, etc. caused by the tension applied to the bone part is eliminated. The bone part and the bone part of the femur are securely grasped.
[0021]
Further, the position detection of the thigh meat peeling end position according to claim 1 is detection of an amplified displacement formed by a displacement amplifying means provided in the separating means, and the amplification of the displacement is performed when the thigh meat peeling is performed on the thigh. It is characterized in that it is performed in the process of moving from the distal end of the head to the muscle connection site.
[0022]
According to the invention described in claim 6 above, the swing displacement in the process of approaching the end part of the femoral head received by the meat separating means just before the end of the thigh stripping of the thigh is enlarged and amplified. The enlargement amplification utilizes the remarkable diameter reduction that occurs with the transition from the end of the femoral head to the muscle connection site.
[0023]
And the thigh meat separation device according to claim 7 using the thigh meat separation method of the present invention ,
In a thigh separation device comprising separate means for peeling off the thigh meat located below the knee joint between the tibia and thigh bone of the thigh with bone, and a cutter for separating the thigh meat after peeling off,
Two recesses for holding the base portions of the tibial head and the femoral head forming the knee joint are provided, and the base portions of the tibial head and the femoral head positioned above and below the knee joint are integrally gripped by the recess. Knee joint grasping means;
A fixed separator that crosses the vertical axis that crosses the grip center of the upper and lower knee joints, and is fixed in a direction away from the bone surface; a movable separator that is movable in a direction sandwiched between the fixed separator; A separate means comprising:
After the bone part of the thigh with bone is clamped below the knee joint by the notch provided in the fixed separator and the notch provided in the movable separator, both the bone part and the separator are aligned along the bone surface. Moving means for peeling off the thigh meat while relatively moving,
The movable separator is swung by following the swelling of the femoral head by relative movement between the separating means and the bone part in the direction of the bone axis, and the thigh meat peeling end position is detected using the swinging displacement. Position detecting means;
Cutter driving means for separating the thigh meat from the end of the femur by an insertion / cutting operation of the cutter for cutting the muscle connecting portion of the thigh meat connected to the end of the femoral head based on the detection signal by the position detecting means;
It is characterized by including.
[0024]
According to a seventh aspect of the present invention, the position detection means includes a digital control mechanism for detecting a peeling end position based on a displacement amount of the tilt angle of the movable separator, and the movable separator has a concave passage and a small hole connected to the rear side. A notch is provided, and the concave passage width is smaller than the femur diameter and larger than the muscle connection portion, and the muscle connection portion connecting the lower femoral head and the thigh meat tilts at the end of the defecation of the thigh. It is structured to be guided in the concave passage of the movable separator and accommodated in the small hole.
[0025]
According to the eighth aspect of the invention, the displacement amount of the tilt angle of the movable separator by the position detecting means of the thigh meat separating apparatus according to the seventh aspect is inputted as a pulse, and the peeling end position is detected by the change of the pulse amount. A digital servo control mechanism is provided, and the stop of the moving means for peeling the thigh meat through the mechanism and the insertion and cutting operation of the cutter for cutting the muscle connecting portion of the thigh meat are digitally controlled to perform accurately It is a thing.
[0026]
[0027]
According to the invention, the knee joint is provided with upper and lower two-stage grasping means for grasping each of the tibial and femoral bones sandwiching the knee joint part, and the peel surface of the meat separating means is brought into contact with the lower part thereof. The contact position is the initial peeling start position of the thigh meat peeling process.
[0028]
[0029]
According to the eighth aspect of the present invention, the fixed separator and the movable separator constituting the separating means are each provided with a notch, and the bone portion is formed by the notch of the fixed separator and the movable separator that are sandwiched between each other when the thigh meat is peeled off. The thigh is sandwiched between the fixed and movable separators at the back of the notch, and the width is smaller than the femur diameter and larger than the muscle connection position. While the femur is clamped, the notch at the entrance is used for clamping, and after the transition to the muscle connection site, the clamping part is shifted to the concave passage.
[0030]
[0031]
According to the invention described in claim 8, the meat separator is fixed to the femoral surface, the movable separator is provided so as to be movable in the direction opposite to the fixed separator, and a concave passage is formed in the movable separator at the back of the notch. A small hole is provided through the slit, and when the muscle connection part is pinched, the muscle connection part to be clamped is guided deeply into the notch and tilted deeply until it is housed in the small hole, and the amplified swing displacement is reliably and stabilized by the sensor. Detection is possible.
[0032]
The movable separator and the cutter according to claim 7 are configured to be integrally movable in the direction of the bone axis, and in a state in which the muscle connection portion is accommodated in the small hole, the cutter is inserted and the thigh meat is inserted from the end of the femur. It is characterized by having a configuration that enables separation.
[0033]
According to the ninth aspect of the present invention, since the movable separator and the cutter are integrally structured to move integrally in the direction of the bone axis, the movement of the facing portion outputs a peeling end signal via a sensor. However, the cutting operation of the cutter is actuated by the output signal, and the actuated cutter moves integrally with the movable separator, so that the muscle connecting portion can be automatically cut without moving the cutting position of the cutter. The automatic cutting can be performed without stopping the relative movement between the bone part and the thigh meat by the detection signal.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not intended to limit the scope of the present invention to that unless otherwise specified. It is just an illustrative example.
1 is a diagram showing a schematic configuration of a thigh meat separation apparatus according to the present invention, FIG. 2 is a diagram showing a schematic configuration of a knee joint vertical gripping portion of FIG. 1, and FIG. 3 is a schematic diagram of a meat separator of FIG. It is a figure which shows a structure, (A) is a perspective view, (B) is a figure which shows the notch part of a movable separator. FIG. 4 shows a thigh meat separation apparatus shown in FIG. 1, which is provided with a digital control mechanism for detecting a peeling end position of the displacement amount of the tilt angle of the movable separator based on the count value of the pulse generator. FIG. 5 is a block diagram showing control of a clamper lifting / lowering servomotor for stopping, control of a server motor for inserting a cutter performed simultaneously with the stop, and control of a cutting motor. FIG. 5 is a diagram showing an arrangement state of components used for the digital control of FIG. FIG. 6 is a view showing a state in which a cutting cutter is provided in an integral structure on the movable separator of FIG.
[0035]
As shown in FIG. 1, the thigh meat separation device of the present invention is used for deboning of the tibia and knee joint performed by supporting the ankle tip of the thigh meat with bone 10 as a work with a clamper 57 by existing deboning means. The thigh meat separating apparatus for separating the thigh meat from the thighbone end peeled off from the thighbone end peeled off via the shared clamper 57, and a knee joint upper and lower gripping part 15 capable of moving up and down, A meat separator 23 including a fixed separator 20 and a movable separator 22 as an opposing member thereof, a position detection sensor 30 at a peeling end position, and a muscle cutting cutter 31 are configured.
In this case, the moving means used for peeling off the thigh meat is constituted by a lifting mechanism (not shown) of the clamper 57 and a lifting guide shaft 16 described later.
[0036]
FIG. 2 shows a schematic configuration of the knee joint vertical gripping portion 15 of FIG.
As shown in the drawing, the knee joint vertical gripping portion 15 includes a pulling guide shaft 16, a housing 17 provided on a sliding portion that can be moved up and down on the shaft, a tibial head 12 c and a femoral head 12 d forming the knee joint 12. It comprises a two-stage gripping member 18 having recesses 18a and 18b for gripping the root portion, and the two-stage gripping member 18 grips the small diameter portions of the roots of the tibial head 12c and the femoral head 12d through the recesses 18a and 18b. Thus, the housing 17 is configured to be fitted and locked to prevent displacement such as expansion / contraction, left / right front / rear displacement, twisting, and dislocation due to an external force of the knee joint.
A housing 17 housing the knee joint 12 is fixed to a sliding body 16a of a guide shaft 16. Further, the guide shaft 16 is configured so that the knee joint vertical gripping portion 15 correctly moves vertically as the clamper 57 supporting the upper ankle of the knee joint moves up and down.
[0037]
FIG. 3 shows a schematic structure of the meat separator 23 constituting the meat separating means of FIG. 1, and FIG. 3A shows a perspective view.
The meat separator 23 includes a fixed separator 20 and a movable separator 22 which is a member facing the fixed separator 20.
The fixed separator 20 is provided horizontally via a structural member (not shown) via an attachment member 21 provided so as to be able to be pressed in the direction of the bone axis, and the horizontal axis Y 1 -Y 1 is gripped by the knee joint vertical gripping portion 15. A workpiece 10 is provided by a V-shaped notch provided on the horizontal axis Y 1 -Y 1 and a V-shaped notch 22 a provided on the movable separator 22 which will be described later. The bone part is clamped under a constant pressure, and the clamping center coincides with the gripping center of the knee joint vertical gripping part 15.
[0038]
The movable separator 22 is provided so as to be tiltable in the direction of arrow A through a rotation axis Z-Z, and is urged in the direction of arrow A through a spring 29b and an operating arm 29a so as to be sandwiched between lower portions of the fixed separator. As described above, the bone part of the workpiece 10 is sandwiched between the V-shaped cutouts 20a and 22a, the bone part is sandwiched by the cutouts provided in the respective parts, and the thigh meat is boned as the clamper 57 rises. It is designed to remove the bone from the part and deboning.
[0039]
The V-shaped notch 22a, as shown in FIG. 3 (B), the eyelet 22c connected thereto and the slit 22b thereon axial Y 2 -Y 2 is provided, the femoral head during deboning completion of thigh The muscle connecting part connecting the lower part and the thigh meat is guided by the slit 22b of the movable separator 22 tilted by the urging force of the spring and is stored in the small hole 22c. By the storage, the swinging displacement of the movable separator is amplified, and the thigh meat peeling end position is accurately detected.
That is, displacement of a large tilting angle is caused by guiding the muscle connecting portion to the small hole 22 c of the movable separator, and the tip of the detection dock 25 that is largely rotated is detected by the peeling end position detection sensor 30. The relative movement between the thigh meat and the movable separator is stopped by the detection signal from the sensor, and the muscle cutting cutter 31 can accurately cut the muscle connecting portion 13c by inserting into the cutting position and operating the cutting operation. It is.
[0040]
In FIG. 4, a digital control mechanism is provided in the thigh meat separation apparatus shown in FIG. 1 for detecting the displacement end position of the movable separator based on the count value of the pulse generator. FIG. 5 is a block diagram showing the control status of the clamper lifting servo motor for stopping the peeling, the servo motor control for inserting the cutter performed simultaneously with the stop, and the control status of the cutting motor. It is a figure which shows the arrangement | positioning condition of the component used for digital control.
As shown in FIG. 4, a pulse generator 32 that detects the tilt angle of the movable separator 22 is provided in place of the peeling end position detection sensor 30, and a digital control mechanism 36 that operates according to the pulse signal of the pulse generator 32 is provided. The operation of the clamper lifting servomotor 35, the cutter insertion servomotor 34, and the cutting motor 33 of the clamper 57 is controlled by the output of the control mechanism 36 to detect the femoral bone removal end position and the muscle connection. It may be possible to cut the region 13c and perform highly efficient thigh meat separation.
[0041]
The movement of the muscle cutting cutter to the cutting position is driven by the cutter insertion servomotor 34 and the gear trains 34a and 37a via the rotating arm 37 as shown in FIG. 5, or as shown in FIG. Alternatively, the cutting cutter 31a may be provided integrally with the movable separator 22 that tilts.
In this case, when the displacement of a large tilt angle is caused by the induction of the muscle connecting portion 13c to the small hole 22c of the movable separator 22, the integrated muscle cutting cutter 31a is automatically inserted into the cutting position and the cutting motor. The structure can be cut through the drive 33. And at the time of cutting | disconnection, the said muscle connection site | part can be cut | disconnected with the induction | guidance | derivation to the said small hole 22c of the said muscle connection site | part 13c, without stopping the relative movement between the said thigh and a movable separator.
[0042]
FIG. 7 shows a state of separation between the thigh and the bone by the thigh separating apparatus shown in FIG.
In the step (1) shown in the figure, the work 10 for which the knee joint deboning in the previous step of the existing deboning means has been completed is carried by the clamper 57, and the carried knee joint 12 of the thigh meat 10 with bone is moved up and down the knee joint. Introduce into the gripping part 15.
Next, in step (2), the knee joint 12 is grasped by the knee joint upper and lower gripping portions 15 so as to prevent displacement of knee joint dislocation, expansion, contraction, and the like during deboning.
Next, in step (3), the movable separator 22 is sandwiched between the fixed separators 20 and the peeling surface is brought into contact with the knee joint of the thigh meat with bone 10 to set the thigh meat peeling start position and the clamper. 57 is raised to start deboning of the thigh, and deboned to the exposed portion of the muscle connection site at the lower end of the femoral head.
Next, in the step (4), the muscle connecting portion 13c is guided and stored in the small hole 22c by the slit 22b.
As a result, the movable separator 22 is greatly tilted, the peeling end position detection sensor 30 detects the detection dock 25 of the movable separator, and the insertion and cutting operation of the muscle cutting cutter 31 to the cutting position is activated to cut the muscle connection site. Is done accurately.
Next, the bone part 10d and the meat part 10e are completely separated in the step (5).
[0043]
【The invention's effect】
When separating the thigh from the thigh bone, it is possible to accurately position the thigh meat peeling end position by the knee joint upper and lower gripping parts, and the muscle connection site is stored by the guide slit provided in the movable separator and the small hole connected to it Thus, a thigh meat separation method and apparatus capable of stable detection can be provided.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a thigh separation apparatus according to the present invention.
2 is a diagram showing a schematic configuration of a knee joint vertical gripping portion of FIG. 1; FIG.
FIGS. 3A and 3B are diagrams illustrating a schematic configuration of the meat separator of FIG. 1, in which FIG. 3A is a perspective view, and FIG. 3B is a diagram illustrating a notch portion of a movable separator.
4 is provided with a digital control mechanism for detecting a peeling end position of a displacement amount of a tilt angle of a movable separator based on a count value of a pulse generator in the thigh meat separation apparatus shown in FIG. 1, and peeling is performed via the mechanism. FIG. 6 is a block diagram showing a state of control of a servo motor for raising and lowering a clamper for stopping the cutting, control of a servo motor for inserting a cutter and control of a cutting motor performed simultaneously with the stop.
FIG. 5 is a diagram showing an arrangement state of components used for digital control in FIG. 4;
6 is a view showing a situation in which a cutting cutter is provided in an integral structure on the movable separator of FIG. 1;
7 is a diagram showing a state of separation of thigh meat and bone by the thigh meat separation device shown in FIG. 1; FIG.
FIG. 8 is a view showing a structure of a bone part of a thigh meat with bone and a cutting portion such as a case for deboning.
FIGS. 9A and 9B are diagrams showing a schematic configuration of a conventional deboning apparatus for thigh meat with bone, where FIG. 9A is a schematic plan view and FIG. 9B is a side view of the same.
FIG. 10 is a diagram showing a schematic configuration of a conventional meat separator.
[Explanation of symbols]
10 thigh meat 10d bone part 10e meat part 11 tibia 12 knee joint 13 femur 13a femoral head 13c muscle connection part 15 knee joint upper and lower gripping part 16 lifting guide shaft 17 housing 18 two-stage gripping member 20 fixed separator 22 movable separator 23 Meat Separator 25 Detection Dock 30 Stripping End Position Detection Sensor 31, 31a Muscle Cutting Cutter 32 Pulse Generator 33 Cutting Motor 34 Servo Motor for Cutter Insertion 35 Servo Motor for Clamping Lift 36 Digital Control Mechanism 37 Rotating Arm

Claims (9)

骨付き腿肉の脛骨と大腿骨の間の膝関節より下側に位置する腿肉の引き剥がしと分離を行なう腿肉分離方法において、
膝関節を形成する脛骨骨頭と大腿骨骨頭の付け根部位を夫々把持する2つの凹部を備え、前記凹部により、膝関節の上下に位置する脛骨骨頭と大腿骨骨頭の付け根部位を一体的に把持する膝関節把持工程と、
膝関節上下把持部の把持中心をよぎる鉛直軸芯と交叉する方向であって、骨面よりの離接方向に固定である固定セパレータと、該固定セパレータと挟叉する方向に可動な可動セパレータとからなるセパレート手段を用意し、
前記固定セパレータと前記可動セパレータとにより骨付き腿肉の骨部を、前記膝関節下側で挟持させた後、前記骨部位とセパレータの両者を骨面に沿って相対移動させながら腿肉の引き剥がしを行なう腿肉引き剥がし工程と、
前記セパレート手段と骨部位間の骨軸方向の相対移動により前記大腿骨頭の膨らみに追従させて前記可動セパレータを揺動させて、その揺動変位を利用して腿肉引き剥がし終了位置を検出する位置検出工程と、を含むことを特徴とする腿肉分離方法。
In the thigh meat separation method for peeling and separating the thigh meat located below the knee joint between the tibia and thigh bone of the thigh with bone,
Two recesses for holding the base portions of the tibial head and the femoral head forming the knee joint are provided, and the base portions of the tibial head and the femoral head positioned above and below the knee joint are integrally gripped by the recess. A knee joint grasping process;
A fixed separator that crosses the vertical axis that crosses the grip center of the upper and lower knee joints, and is fixed in a direction away from the bone surface; a movable separator that is movable in a direction sandwiched between the fixed separator; Prepare a separate means consisting of
After the bone part of the thigh with bone is clamped below the knee joint by the fixed separator and the movable separator, the thigh is pulled while relatively moving both the bone part and the separator along the bone surface. Thigh meat peeling process for peeling,
The movable separator is swung by following the swelling of the femoral head by relative movement between the separating means and the bone part in the direction of the bone axis, and the thigh meat peeling end position is detected using the swinging displacement. A thigh separation method comprising: a position detection step.
前記位置検出工程は、その検出信号に基づいて前記セパレート手段と骨部位間の相対移動を停止させた後、前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断するカッタの挿入と切断操作をさせて大腿骨末端より腿肉の分離を行なうようにさせたことを特徴とする請求項1記載の腿肉分離方法。  The position detecting step includes the insertion of a cutter for cutting the muscle connecting portion of the thigh meat connected to the distal end of the femoral head after stopping the relative movement between the separating means and the bone portion based on the detection signal. The thigh meat separation method according to claim 1, wherein the thigh meat is separated from the end of the femur by performing a cutting operation. 前記位置検出工程は、その検出信号に基づいて前記セパレート手段の揺動部位に一体に付設したカッタを介して、前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断させ、セパレート手段と骨部位間の相対移動を停止させることなく、大腿骨末端より腿肉の分離を行なうようにさせたことを特徴とする請求項1記載の腿肉分離方法。  The position detecting step cuts the muscle connecting portion of the thigh meat connected to the distal end of the femoral head via a cutter integrally attached to the swinging portion of the separating means based on the detection signal, and the separating means The thigh meat separation method according to claim 1, wherein the thigh meat is separated from the end of the femur without stopping the relative movement between the thigh and the bone part. 前記位置検出工程は、その検出信号に基づいて作動するデジタル制御機構を介して、前記セパレート手段と骨部位間の相対移動の停止と、前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断するカッタの挿入と切断操作を行なわせて、大腿骨末端より腿肉の精密分離を行なうようにさせたことを特徴とする請求項1記載の腿肉分離方法。  In the position detection step, via a digital control mechanism that operates based on the detection signal, the relative movement between the separating means and the bone part is stopped, and the muscle connection part of the thigh meat that is connected to the femoral head end. The thigh meat separation method according to claim 1, wherein the thigh meat is precisely separated from the end of the femur by inserting and cutting a cutter for cutting the thigh. 前記腿肉引き剥がし工程が、前記固定セパレータに設けた切り欠きと可動セパレータに設けた切り欠きとにより骨付き腿肉の骨部の挟持中心が前記膝関節上下把持部の把持中心と一致する一定加圧のもとに挟持させた後、前記骨部位とセパレータの両者を骨面に沿って相対移動させながら腿肉の引き剥がしを行なう腿肉引き剥がし工程であることを特徴とする請求項1記載の腿肉分離方法。The thigh meat peeling step is a constant in which the holding center of the bone part of the thigh meat with bone coincides with the holding center of the upper and lower knee joint part by the notch provided in the fixed separator and the notch provided in the movable separator. 2. A thigh meat peeling process in which the thigh meat is peeled off while being relatively moved along the bone surface after being clamped under pressure. The thigh meat separation method as described. 前記腿肉引き剥がし終了位置の位置検出が、前記セパレート手段に設けた変位増幅手段により形成された増幅変位の検出であり、該変位の増幅は大腿骨末端より筋接続部位に移行する過程で行なわれることを特徴とする請求項1記載の腿肉分離方法。  The position detection of the thigh meat peeling end position is detection of the amplified displacement formed by the displacement amplifying means provided in the separating means, and the amplification of the displacement is performed in the process of moving from the femoral end to the muscle connection site. The method for separating thigh meat according to claim 1, wherein: 骨付き腿肉の脛骨と大腿骨の間の膝関節より下側に位置する腿肉の引き剥がしを行なうセパレート手段と引き剥がし後の腿肉分離を行なうカッタとを備えた腿肉分離装置において、
膝関節を形成する脛骨骨頭と大腿骨骨頭の付け根部位を夫々把持する2つの凹部を備え、前記凹部により、膝関節の上下に位置する脛骨骨頭と大腿骨骨頭の付け根部位を一体的に把持する膝関節把持手段と、
膝関節上下把持部の把持中心をよぎる鉛直軸芯と交叉する方向であって、骨面よりの離接方向に固定である固定セパレータと、該固定セパレータと挟叉する方向に可動な可動セパレータとからなるセパレート手段と、
前記固定セパレータと前記可動セパレータとにより骨付き腿肉の骨部を、前記膝関節下側で挟持させた後、前記骨部位とセパレータの両者を骨面に沿って相対移動させながら腿肉の引き剥がしを行なう移動手段と、
前記セパレート手段と骨部位間の骨軸方向の相対移動により前記大腿骨頭の膨らみに追従させて前記可動セパレータを揺動させて、その揺動変位を利用して腿肉引き剥がし終了位置を検出する位置検出手段と、
前記位置検出手段による検出信号に基づき前記大腿骨頭末端に接続されている腿肉の筋接続部位を切断するカッタの挿入切断操作により大腿骨末端よりの腿肉分離を行なうカッタ駆動手段と、を含むことを特徴とする腿肉分離装置。
In a thigh separation device comprising separate means for peeling off the thigh meat located below the knee joint between the tibia and thigh bone of the thigh with bone, and a cutter for separating the thigh meat after peeling off,
Two recesses for holding the base portions of the tibial head and the femoral head forming the knee joint are provided, and the base portions of the tibial head and the femoral head positioned above and below the knee joint are integrally gripped by the recess. Knee joint grasping means;
A fixed separator that crosses the vertical axis that crosses the grip center of the upper and lower knee joints, and is fixed in a direction away from the bone surface; a movable separator that is movable in a direction sandwiched between the fixed separator; A separate means comprising:
After the bone part of the thigh with bone is clamped below the knee joint by the fixed separator and the movable separator, the thigh is pulled while relatively moving both the bone part and the separator along the bone surface. A moving means for stripping;
The movable separator is swung by following the swelling of the femoral head by relative movement between the separating means and the bone part in the direction of the bone axis, and the thigh meat peeling end position is detected using the swinging displacement. Position detecting means;
Cutter driving means for separating the thigh meat from the end of the femur by an insertion / cutting operation of the cutter for cutting the muscle connecting portion of the thigh meat connected to the end of the femoral head based on the detection signal from the position detecting means. A thigh meat separation device characterized by that.
前記位置検出手段は、前記可動セパレータの傾動角の変位量により引き剥がし終了位置を検出するデジタル制御機構を設けるとともに、前記可動セパレータは奥側に凹状通路とそれに繋がる***を有する切り欠きを設け、前記凹状通路幅が、大腿骨径より小で筋接続部位より大であり、大腿部の脱骨終了時に大腿骨頭下部と腿肉とを結ぶ筋接続部位が、前記傾動する可動セパレータの凹状通路に誘導され***に収納させる構造にしてあることを特徴とする請求項7記載の腿肉分離装置。  The position detecting means is provided with a digital control mechanism for detecting a peeling end position based on a displacement amount of the tilt angle of the movable separator, and the movable separator is provided with a notch having a concave passage and a small hole connected to the rear side. The concave passage width of the movable separator is such that the width of the concave passage is smaller than the diameter of the femur and larger than the muscle connection portion, and the muscle connection portion connecting the lower femoral head and the thigh meat at the end of defecation of the thigh is tilted. 8. A thigh meat separation device according to claim 7, wherein the thigh meat separation device is structured to be guided by the guide and accommodated in the small hole. 前記可動セパレータとカッタとを一体的に骨軸方向に移動可能に構成し、前記***に筋接続部位を収納させるとともに一体構造のカッタによる大腿骨末端より腿肉の切断分離を可能とする構成としたことを特徴とする請求項8記載の腿肉分離装置。  The movable separator and the cutter are configured to be integrally movable in the direction of the bone axis, the muscle connecting portion is accommodated in the small hole, and the thigh meat can be cut and separated from the femoral end by the integrated cutter. The thigh meat separation device according to claim 8, wherein
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