JP2002035459A - Sewing machine for hole darning - Google Patents

Sewing machine for hole darning

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Publication number
JP2002035459A
JP2002035459A JP2000219095A JP2000219095A JP2002035459A JP 2002035459 A JP2002035459 A JP 2002035459A JP 2000219095 A JP2000219095 A JP 2000219095A JP 2000219095 A JP2000219095 A JP 2000219095A JP 2002035459 A JP2002035459 A JP 2002035459A
Authority
JP
Japan
Prior art keywords
thread cutting
sewing
cloth
upper thread
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000219095A
Other languages
Japanese (ja)
Other versions
JP4340942B2 (en
Inventor
Etsuzo Nomura
悦造 野村
Kenichi Hashimoto
健一 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brother Industries Ltd
Original Assignee
Brother Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP2000219095A priority Critical patent/JP4340942B2/en
Publication of JP2002035459A publication Critical patent/JP2002035459A/en
Application granted granted Critical
Publication of JP4340942B2 publication Critical patent/JP4340942B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a sewing machine for hole darning wherein an upper thread is held by a thread cutting member which is switched to a retreating position for forming a button hole by the mechanism before sewing stitches for hole darning. SOLUTION: A raising and lowering mechanism 12 of a fabric presser foot, the upper thread cutting mechanism 13, and a lower thread cutting mechanism 14 are interlocked by a interlocking mechanism 50. The raising and lowering mechanism 12 of the fabric presser foot, the upper thread cutting mechanism 13, and the lower thread cutting mechanism 14 are driven by a common pulse motor 51 through the interlocking mechanism 50. In a state that a fabric 1 to be processed is pressed by the fabric presser foot 22, the upper thread is caught by the thread cutting member 30 which is switched to the retreating position.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】 本発明は穴かがりミシンに
関し、特に、上糸切断機構の糸切り部材を切断位置と縫
製開始位置と退避位置とに亙って切換え可能に構成した
穴かがりミシンに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hole sewing machine, and more particularly to a hole sewing machine in which a thread cutting member of an upper thread cutting mechanism is configured to be switchable between a cutting position, a sewing start position, and a retracted position.

【０００２】[0002]

【従来の技術】 従来、穴かがりミシンには、縫目形成
機構、布送り機構、布押え昇降機構、ボタン穴形成機構
等が設けられている。布押え昇降機構により布押えが昇
降され、布押えにより布が布送り機構の送り部材に押え
られた状態で、布送り機構により布が送り部材及び布押
えと一体的に送られる。その布に縫目形成機構により穴
かがり縫目が形成され、穴かがり縫目の縫製後又は縫製
途中に、ボタン穴形成機構により穴かがり縫目の内側に
ボタン穴が形成される。2. Description of the Related Art Conventionally, a holing machine is provided with a stitch forming mechanism, a cloth feeding mechanism, a cloth presser elevating mechanism, a button hole forming mechanism, and the like. The cloth presser is raised and lowered by the cloth presser elevating mechanism, and the cloth is fed integrally with the feeder and the cloth presser by the cloth feeder in a state where the cloth is pressed by the feeder of the cloth feeder by the cloth presser. A buttonhole stitch is formed on the cloth by the stitch formation mechanism, and a buttonhole is formed inside the buttonhole stitch by the buttonhole formation mechanism after or during sewing of the buttonhole stitch.

【０００３】布に穴かがり縫目とボタン穴を形成した
後、次の穴かがり縫目を縫製するために、布押え昇降機
構により布押えを上昇させ、布をずらしたり取替えたり
してセットするが、その前に、加工布に形成された穴か
がり縫目と縫針の間の上糸を切断しなければならない。
従来、この上糸切断を穴かがり縫目の形成後に自動的に
行う上糸切断機構は実用に供されている。After forming a buttonhole and a buttonhole on a cloth, in order to sew the next buttonhole, the cloth foot is raised by a cloth presser lifting mechanism, and the cloth is set by shifting or replacing the cloth. However, before that, the upper thread between the buttonhole stitch and the sewing needle formed in the work cloth must be cut.
Conventionally, a needle thread cutting mechanism that automatically performs the needle thread cutting after the formation of the buttonhole stitch has been put to practical use.

【０００４】従来の上糸切断機構は１対の刃を含む糸切
り部材を有し、この糸切り部材が縫針近傍の切断位置に
おいて縫針から延びる上糸を切断する。但し、この切断
位置に位置する糸切り部材は昇降する縫針と干渉するた
め、また、ボタン穴形成機構の下降するカッターとも干
渉するため、穴かがり縫目の縫製開始前に、糸切り部材
は切断位置から退避位置に切換えられる。A conventional upper thread cutting mechanism has a thread cutting member including a pair of blades, and the thread cutting member cuts an upper thread extending from the sewing needle at a cutting position near the sewing needle. However, since the thread cutting member located at this cutting position interferes with the sewing needle which moves up and down, and also interferes with the cutter which descends the buttonhole forming mechanism, the thread cutting member is cut before the sewing of the buttonhole sewing is started. The position is switched to the retracted position.

【０００５】通常、糸切り部材が退避位置から切断位置
へ移動する際に、１対の刃が機械的に閉じられ上糸を切
断して保持し、糸切り部材が切断位置から退避位置へ移
動する際に、１対の刃が機械的に開かれ保持している上
糸を開放し、糸切り部材が退避位置に位置しているとき
には、必ず上糸を開放した状態となる。尚、従来の上糸
切断機構は専用のアクチュエータを有し、その他の機構
と独立に駆動される。Usually, when the thread cutting member moves from the retracted position to the cutting position, a pair of blades are mechanically closed to cut and hold the upper thread, and the thread cutting member moves from the cutting position to the retracted position. At this time, when the pair of blades mechanically open and hold the upper thread held open and the thread cutting member is located at the retracted position, the upper thread is always opened. The conventional needle thread cutting mechanism has a dedicated actuator and is driven independently of other mechanisms.

【０００６】また、特開平１１−９８６０号公報の穴か
がりミシンでは、上糸切断機構が、１対の刃を有する糸
切り部材、糸切り部材を先端部に連結した糸切り連結部
材、揺動アーム、揺動アームを揺動駆動するパルスモー
タ、糸切り連結部材と揺動アームを作動的に連結する回
転軸及びローリングジョイントを有し、糸切り部材を、
切断位置と、退避位置と、切断位置に対して縫製開始直
後の布送り方向と反対側へ離隔した縫製開始位置とに位
置切換え可能に構成されている。[0006] Further, in the hole holing machine disclosed in JP-A-11-9860, the upper thread cutting mechanism includes a thread cutting member having a pair of blades, a thread cutting connecting member having the thread cutting member connected to the tip end, and a swinging mechanism. An arm, a pulse motor that swings and drives the swing arm, a thread cutting connection member and a rotating shaft that operatively connects the swing arm and a rolling joint, and a thread cutting member.
The position can be switched between a cutting position, a retreating position, and a sewing start position which is separated from the cutting position in a direction opposite to the cloth feeding direction immediately after the start of sewing.

【０００７】但し、従来の上糸切断機構と同様に、糸切
り部材が退避位置に位置しているときには、必ず上糸を
開放した状態となる。尚、糸切り部材が上糸を切断して
保持し縫製開始位置に切換えられた状態で縫製を開始
し、その直後に、糸切り部材が１対の刃を開いて上糸を
開放してから退避位置に切換わることにより、縫針と糸
切り部材間の上糸を適度に張って穴かがり縫目の内側へ
縫い込むことができ品質が向上する。また、この上糸切
断機構も従来のものと同様に専用のアクチュエータ（パ
ルスモータ）を有し、その他の機構と独立に駆動される
ものである。However, like the conventional upper thread cutting mechanism, when the thread cutting member is located at the retracted position, the upper thread is always opened. In addition, the sewing is started in a state where the thread cutting member has cut and held the upper thread and has been switched to the sewing start position. Immediately after that, the thread cutting member opens the pair of blades and opens the upper thread. By switching to the retracted position, the upper thread between the sewing needle and the thread cutting member can be appropriately stretched and sewn into the inside of the hole stitch, thereby improving the quality. The upper thread cutting mechanism also has a dedicated actuator (pulse motor) like the conventional one, and is driven independently of other mechanisms.

【０００８】尚、本願出願人は、特開平１１−１５６０
７３号公報において、布押え昇降機構と上糸切断機構と
下糸切断機構を連動連結し、共通のパルスモータでこれ
ら機構を駆動可能な穴かがりミシンを出願している。[0008] The applicant of the present invention has disclosed Japanese Patent Application Laid-Open No. 11-1560.
In Japanese Patent No. 73, an application has been filed for a holing machine in which a presser foot lifting mechanism, an upper thread cutting mechanism, and a lower thread cutting mechanism are linked and driven by a common pulse motor.

【０００９】[0009]

【発明が解決しようとする課題】 従来の穴かがりミシ
ンでは、糸切り部材が退避位置に切換わり上糸を開放し
て穴かがり縫目を縫製し、その穴かがり縫目の縫製後又
は縫製途中に、ボタン穴形成機構によりボタン穴を形成
する。しかし、糸切り部材が上糸を保持して退避位置に
切換わることができないと、穴かがり縫目の縫製前にボ
タン穴を何ら問題なく形成することが難しい。In the conventional overlock sewing machine, the thread trimming member is switched to the retracted position to release the upper thread and sew the overlock stitch, and after or during the sewing of the overlock stitch. Then, a button hole is formed by a button hole forming mechanism. However, if the thread cutting member cannot hold the upper thread and switch to the retracted position, it is difficult to form the button hole without any problem before sewing the buttonhole stitch.

【００１０】即ち、糸切り部材を退避位置に切換えて上
糸を開放した状態でボタン穴を形成することは不可能で
ないが、そうした場合、上糸がボタン穴形成機構のカッ
ターで切断されたり、上糸が縫針から抜けたり、余分な
上糸がその後形成される穴かがり縫目に綺麗に縫い込ま
れずにはみ出す等の不都合が生じる虞がある。勿論、糸
切り部材が上糸を保持した状態でボタン穴を形成しよう
とすると、その糸切り部材は切断位置に位置するためボ
タン穴形成機構のカッターと干渉する。That is, it is not possible to form the buttonhole with the upper thread opened by switching the thread cutting member to the retracted position, but in such a case, the upper thread is cut by the cutter of the buttonhole forming mechanism, There is a possibility that inconveniences such as the upper thread coming off from the sewing needle and the extra upper thread being protruded without being neatly sewn into the overlock seam formed thereafter. Of course, if a button hole is to be formed while the thread cutting member holds the upper thread, the thread cutting member is located at the cutting position and interferes with the cutter of the button hole forming mechanism.

【００１１】また、従来の穴かがりミシンでは、前述の
ように、基本的に穴かがり縫目の縫製前にボタン穴を形
成することができず、穴かがり縫目の縫製後又は縫製途
中にボタン穴を形成することになるため、ボタン穴形成
機構のカッターにより、ボタン穴を形成するときに穴か
がり縫目が切断される等の虞がある。Further, in the conventional buttonhole sewing machine, as described above, the buttonhole cannot be basically formed before the sewing of the buttonhole stitch, and the buttonhole is formed after the buttonhole stitch is sewn or during the sewing. Since the holes are formed, there is a risk that the buttonhole forming stitches may be cut by the cutter of the buttonhole forming mechanism when the buttonholes are formed.

【００１２】しかも、従来の穴かがりミシンでは、上糸
切断機構が専用のアクチュエータを有し、その他の機構
と独立に駆動されるものであるため、各機構に専用のア
クチュエータを設け、場合によってセンサ類も多くな
り、更に、これらアクチュエータを夫々駆動制御する制
御プログラムを含む制御装置が必要になり、構造も複雑
化するため製作コストが高価になるという問題がある。Further, in the conventional overlock sewing machine, the upper thread cutting mechanism has a dedicated actuator and is driven independently of the other mechanisms. Therefore, a dedicated actuator is provided for each mechanism, and in some cases, a sensor is provided. In addition, there is a problem that a control device including a control program for driving and controlling each of the actuators is required, and the structure is complicated, so that the manufacturing cost is high.

【００１３】特開平１１−９８６０号公報の穴かがりミ
シンの上糸切断機構では、糸切り部材が上糸を保持して
退避位置に切換わることができないし、更に、専用のア
クチュエータを有しその他の機構と独立に駆動されるも
のであるため、従来の上糸切断機構と同様の課題が生じ
る。[0013] In the needle thread cutting mechanism of the hole holing machine disclosed in JP-A-11-9860, the thread cutting member cannot hold the upper thread and switch to the retracted position, and further has a dedicated actuator. Since it is driven independently of this mechanism, the same problem as the conventional upper thread cutting mechanism occurs.

【００１４】尚、本願出願人は、前述のように、布押え
昇降機構と上糸切断機構と下糸切断機構とを連動連結
し、共通のパルスモータでこれら機構を駆動可能な穴か
がりミシンを出願しているが、上糸切断機構の糸切り部
材が上糸を保持して退避位置に切り換わる技術は開示さ
れていない。Incidentally, as described above, the applicant of the present application has linked the bobbin presser lifting / lowering mechanism, the upper thread cutting mechanism and the lower thread cutting mechanism to each other, and has a boring machine capable of driving these mechanisms by a common pulse motor. Although a patent application is filed, there is no disclosure of a technique in which the thread cutting member of the upper thread cutting mechanism holds the upper thread and switches to the retracted position.

【００１５】本発明の目的は、穴かがり縫目の縫製前に
ボタン穴形成機構によりボタン穴を形成する為に、上糸
切断機構の糸切り部材が上糸を保持して退避位置に切り
換わるようにすること、布押え昇降機構と上糸切断機構
とを連動連結して共通のパルスモータで駆動して構造を
簡単化し製作コストを低減すること、等である。An object of the present invention is to form a buttonhole by a buttonhole forming mechanism before sewing a buttonhole stitch, so that the thread cutting member of the upper thread cutting mechanism switches to the retracted position while holding the upper thread. That is, the structure is simplified and the manufacturing cost is reduced by driving the common presser lifting / lowering mechanism and the upper thread cutting mechanism in conjunction with each other and driving them with a common pulse motor.

【００１６】[0016]

【課題を解決するための手段】 請求項１の穴かがりミ
シンは、上糸切断機構とボタン穴形成機構とを備えた穴
かがりミシンにおいて、前記上糸切断機構を駆動するア
クチュエータを備え、前記上糸切断機構は、穴かがり縫
目の形成後に縫針近傍の切断位置で上糸を切断して保持
する糸切り部材を有すると共に、この糸切り部材を前記
切断位置とボタン穴形成機構の布切断用カッターの移動
軌跡付近の縫製開始位置とその移動軌跡から退避した退
避位置とに亙って切換え可能に構成され、布に次の穴か
がり縫目の縫製前にボタン穴形成機構によりボタン穴を
形成する為に、上糸切断機構の糸切り部材が上糸を保持
して退避位置に切り換わるように構成したことを特徴と
するものである。According to a first aspect of the present invention, there is provided a buttonhole sewing machine including a needle thread cutting mechanism and a buttonhole forming mechanism, wherein the buttonhole sewing machine includes an actuator for driving the needle thread cutting mechanism. The thread cutting mechanism has a thread cutting member that cuts and holds the upper thread at a cutting position near the sewing needle after the formation of the buttonhole stitch. A button hole is formed by a button hole forming mechanism before sewing the next buttonhole stitch on the cloth, which can be switched between a sewing start position near the moving path of the cutter and a retracted position retracted from the moving path. For this purpose, the thread cutting member of the upper thread cutting mechanism is configured to hold the upper thread and switch to the retracted position.

【００１７】この穴かがりミシンでは、上糸切断機構を
駆動するアクチュエータが設けられ、上糸切断機構は、
穴かがり縫目の形成後に縫針近傍の切断位置で上糸を切
断して保持する糸切り部材を有する。上糸切断機構によ
り、糸切り部材が前記切断位置とボタン穴形成機構の布
切断用カッターの移動軌跡付近の縫製開始位置とその移
動軌跡から退避した退避位置とに亙って切換えられる。[0017] In this overlock sewing machine, an actuator for driving the upper thread cutting mechanism is provided.
A thread cutting member is provided for cutting and holding the upper thread at a cutting position near the sewing needle after the formation of the hole stitch. The upper thread cutting mechanism switches the thread cutting member between the cutting position, the sewing start position near the movement locus of the cloth cutting cutter of the buttonhole forming mechanism, and the retracted position retracted from the movement locus.

【００１８】布に次の穴かがり縫目の縫製前にボタン穴
形成機構によりボタン穴を形成する為に、上糸切断機構
の糸切り部材が上糸を保持して退避位置に切り換わるの
で、ボタン穴形成機構の下降する布切断用カッターが糸
切り部材と干渉することなく布に落ちてボタン穴を形成
することができる。糸切り部材で上糸を保持した状態
で、ボタン穴を形成することができるため、布切断用カ
ッターで上糸を切断したり、上糸が縫針から抜けたりす
る等の虞もなく、その後行われる穴かがり縫目の縫製に
支障を来さない。In order to form the button hole by the button hole forming mechanism before sewing the next buttonhole stitch on the cloth, the thread cutting member of the upper thread cutting mechanism switches to the retracted position while holding the upper thread. The descending cloth cutting cutter of the buttonhole forming mechanism falls on the cloth without interfering with the thread cutting member to form the buttonhole. Since the button hole can be formed while the upper thread is held by the thread cutting member, there is no fear that the upper thread is cut by the cloth cutting cutter or the upper thread comes off from the sewing needle. It does not hinder the sewing of the overcast stitches.

【００１９】請求項２の穴かがりミシンは、請求項１の
発明において、布押え昇降機構と、この布押え昇降機構
と上糸切断機構を連動連結する連動連結機構を備え、前
記アクチュエータにより連動連結機構を介して布押え昇
降機構と上糸切断機構を駆動し、布押え昇降機構の布押
えにより布を押えた状態で、上糸切断機構の糸切り部材
を退避位置に切り換え可能に構成したことを特徴とする
ものである。According to a second aspect of the present invention, there is provided a buttonhole sewing machine comprising a presser foot elevating mechanism and an interlocking connection mechanism interlockingly connecting the presser foot lifting and lowering mechanism and the needle thread cutting mechanism. The presser foot lifting mechanism and the upper thread cutting mechanism are driven via the mechanism, and the thread cutting member of the upper thread cutting mechanism can be switched to the retracted position while the cloth is pressed by the presser foot of the presser foot lifting mechanism. It is characterized by the following.

【００２０】布押え昇降機構と上糸切断機構とを連動連
結機構により連結し、その連動連結機構を介して共通の
アクチュエータで駆動するため、構造を簡単化し製作コ
ストの低減を図ることが可能となる。布押え昇降機構の
布押えにより布を押えた状態で、糸切り部材を退避位置
に切り換えることができるため、布を布切断用カッター
に対応する位置に布送りして位置決めすることもでき、
ボタン穴を確実に形成することができる。Since the presser foot lifting mechanism and the upper thread cutting mechanism are connected by an interlocking connection mechanism and driven by a common actuator via the interlocking connection mechanism, the structure can be simplified and the manufacturing cost can be reduced. Become. Since the thread cutting member can be switched to the retracted position in a state where the cloth is pressed by the cloth presser of the cloth presser lifting mechanism, the cloth can be fed to the position corresponding to the cloth cutting cutter and positioned.
The button hole can be reliably formed.

【００２１】請求項３の穴かがりミシンは、請求項２の
発明において、前記上糸切断機構は、穴かがり縫目の縫
製中に糸切り部材を待機させる縫製中位置に切換え可能
に構成されたことを特徴とするものである。糸切り部材
を縫製中位置に切換えて待機させた状態で、糸切り部材
と昇降する縫針とを干渉させずに、穴かがり縫目の縫製
を行うことができる。According to a third aspect of the present invention, in the second aspect of the present invention, the upper thread cutting mechanism is configured to be switchable to a sewing position where the thread cutting member is on standby during the sewing of the overhole stitch. It is characterized by the following. In a state where the thread trimming member is switched to the sewing position and is kept on standby, the sewing of the buttonhole stitch can be performed without interfering between the thread trimming member and the ascending and descending sewing needles.

【００２２】請求項４の穴かがりミシンは、前記糸切り
部材は１対の刃を有し、上糸切断機構は、１対の開いた
刃を切断位置で閉じ、１対の閉じた刃を縫製開始位置又
は縫製中位置で開ける刃開閉機構を含むことを特徴とす
るものである。刃開閉機構により、糸切り部材の１対の
開いた刃が切断位置で閉じて上糸を確実に切断して保持
でき、１対の閉じた刃が縫製開始位置又は縫製中位置で
開いて上糸を確実に開放でき、余分な上糸を穴かがり縫
目の内側に綺麗に縫い込むことができるため品質が向上
する。According to a fourth aspect of the present invention, the thread cutting member has a pair of blades, and the upper thread cutting mechanism closes the pair of open blades at the cutting position and closes the pair of closed blades. It is characterized by including a blade opening and closing mechanism that opens at a sewing start position or a sewing position. By the blade opening / closing mechanism, the pair of open blades of the thread cutting member can be closed at the cutting position to reliably cut and hold the upper thread, and the pair of closed blades can be opened at the sewing start position or the sewing position to open the upper thread. Since the thread can be released reliably and the extra upper thread can be neatly sewn into the inside of the hole stitching, the quality is improved.

【００２３】請求項５の穴かがりミシンは、請求項４の
発明において、前記上糸切断機構は、先端部に糸切り部
材を連結すると共に基端部が鉛直軸心回りに回動可能に
枢支され且つ布送り方向へ移動可能な糸切り連結部材を
有することを特徴とするものである。糸切り連結部材の
鉛直軸心回りの回動と布送り方向への移動を介して、糸
切り部材を、切断位置、縫製開始位置、退避位置、縫製
中位置に亙って切換えることができる。According to a fifth aspect of the present invention, in the hole sewing machine according to the fourth aspect, the upper thread cutting mechanism is configured to connect a thread cutting member to a distal end portion and pivotally rotate a base end portion about a vertical axis. It has a thread cutting connection member supported and movable in the cloth feeding direction. Through rotation of the thread cutting connection member about the vertical axis and movement in the cloth feeding direction, the thread cutting member can be switched over to a cutting position, a sewing start position, a retreat position, and a sewing position.

【００２４】請求項６の穴かがりミシンは、請求項５の
発明において、前記連動連結機構は、前記アクチュエー
タにより駆動される連動連結部材と、この連動連結部材
の駆動力を糸切り連結部材に伝達して糸切り連結部材を
布送り方向へ駆動する第１駆動系を含むことを特徴とす
るものである。この第１駆動系により、連動連結部材の
駆動力を糸切り連結部材に伝達して、糸切り連結部材を
布送り方向へ確実に駆動することができる。According to a sixth aspect of the present invention, the interlocking connection mechanism transmits the driving force of the interlocking connection member to the thread cutting connection member. And a first drive system for driving the thread cutting connection member in the cloth feeding direction. By the first drive system, the driving force of the interlocking connection member is transmitted to the thread cutting connection member, and the thread cutting connection member can be reliably driven in the cloth feeding direction.

【００２５】請求項７の穴かがりミシンは、請求項６の
発明において、前記糸切り部材を退避位置又は縫製中位
置側へ付勢する付勢部材と、糸切り連結部材に設けられ
た第１係合部と、その第１係合部と係合可能な第１被係
合部とを備え、これら第１係合部と第１被係合部が係合
状態で糸切り部材を縫製開始位置に保持し非係合状態で
糸切り部材の退避位置又は縫製中位置への切換えを許容
することを特徴とするものである。第１係合部と第１被
係合部が係合した状態で糸切り部材を縫製開始位置に保
持し、第１係合部と第１被係合部が係合解除した状態
で、付勢部材により糸切り部材を退避位置又は縫製中位
置に切換えることができる。According to a seventh aspect of the present invention, there is provided the boring machine according to the sixth aspect, further comprising: an urging member for urging the thread trimming member toward the retracted position or the sewing position; and a first thread trimming coupling member. An engaging portion, and a first engaged portion engageable with the first engaging portion, and the sewing of the thread cutting member is started when the first engaging portion and the first engaged portion are engaged. The thread cutting member is allowed to be switched to the retracted position or the sewing position in the disengaged state while being held at the position. The thread cutting member is held at the sewing start position in a state in which the first engagement portion and the first engaged portion are engaged, and in a state in which the first engagement portion and the first engaged portion are released from engagement. The thread cutting member can be switched to the retracted position or the sewing position by the urging member.

【００２６】請求項８の穴かがりミシンは、請求項７の
発明において、前記布押えに連結されて布と一体的に布
送り方向へ移動する送り腕に、糸切り連結部材の第１係
合部を押動可能な押動部を設け、穴かがり縫目の縫製開
始直後に、押動部が縫製開始位置に位置する糸切り連結
部材の第１係合部を押動して第１係合部と第１被係合部
との係合を解除することを特徴とするものである。穴か
がり縫目の縫製開始直後、布送り方向へ移動する送り腕
の押動部が糸切り連結部材の第１係合部を押動し、第１
係合部と第１被係合部との係合を解除して糸切り部材を
縫製中位置に切換えることができる。According to a eighth aspect of the present invention, in the invention of the seventh aspect, the thread engagement connecting member is provided on the feed arm which is connected to the presser foot and moves in the cloth feed direction integrally with the cloth. A pressing portion capable of pressing the portion is provided. Immediately after the sewing of the buttonhole stitch is started, the pressing portion pushes the first engagement portion of the thread cutting connection member located at the sewing start position, and the first engaging portion is pressed. The engagement between the mating portion and the first engaged portion is released. Immediately after the sewing of the buttonhole stitch is started, the pushing portion of the feed arm that moves in the cloth feeding direction pushes the first engagement portion of the thread cutting connection member, and
The engagement between the engaging portion and the first engaged portion is released, and the thread cutting member can be switched to the sewing position.

【００２７】請求項９の穴かがりミシンは、請求項８の
発明において、前記糸切り連結部材に設けられた第２係
合部と、その第２係合部と係合可能な第２被係合部とを
備え、これら第２係合部と第２被係合部が係合した状態
で糸切り部材を退避位置と切断位置と縫製中位置の何れ
か１つの位置に保持することを特徴とするものである。
第２係合部と第２被係合部とを係合させて、糸切り部材
を退避位置と切断位置と縫製中位置に確実に切換えるこ
とができる。According to a ninth aspect of the present invention, in the hole sewing machine according to the eighth aspect, a second engaging portion provided on the thread cutting connecting member and a second engaged member engageable with the second engaging portion. A joining portion, wherein the thread cutting member is held at any one of the retracted position, the cutting position, and the sewing position in a state where the second engaging portion and the second engaged portion are engaged. It is assumed that.
By engaging the second engaging portion and the second engaged portion, the thread cutting member can be reliably switched to the retracted position, the cutting position, and the sewing position.

【００２８】請求項１０の穴かがりミシンは、請求項９
の発明において、前記第２係合部は段部を有し、この段
部と第２被係合部が係合すると、糸切り連結部材が切断
位置に切換わることを特徴とするものである。第１係合
部に対して第２被係合部を布送り方向へ移動させ、第２
係合部の段部と第２被係合部とを係合させて、糸切り連
結部材を切断位置に移動させ切換えることができる。According to a tenth aspect of the present invention, there is provided a hoist sewing machine.
In the invention, the second engaging portion has a step, and when the step and the second engaged portion are engaged, the thread cutting connecting member switches to the cutting position. . The second engaged portion is moved in the cloth feed direction with respect to the first
By engaging the step portion of the engaging portion and the second engaged portion, the thread cutting connection member can be moved to the cutting position and switched.

【００２９】請求項１１の穴かがりミシンは、請求項１
０の発明において、前記連動連結機構は、前記連動連結
部材の駆動力を第２被係合部に伝達して第２被係合部を
布送り方向へ駆動する第２駆動系を含むことを特徴とす
るものである。この第２駆動系により第２被係合部を布
送り方向へ駆動し、第２係合部に対する第２被係合部の
係合位置を変化させて段部にも係合させることができ
る。[0029] According to the eleventh aspect of the present invention, there is provided a hoist sewing machine.
0, the interlocking connection mechanism includes a second drive system that transmits a driving force of the interlocking connection member to a second engaged portion to drive the second engaged portion in the cloth feeding direction. It is a feature. The second engaged portion is driven in the cloth feeding direction by the second drive system, and the engaging position of the second engaged portion with respect to the second engaging portion is changed so that the second engaged portion can also be engaged with the step portion. .

【００３０】請求項１２の穴かがりミシンは、請求項１
〜９の何れかにおいて、前記アクチュエータがパルスモ
ータであることを特徴とするものである。パルスモータ
を駆動制御し、その駆動量に応じて、布押え昇降機構と
上糸切断機構を適切なタイミングで駆動し、また、上糸
切断機構において、糸切り部材の切断位置、退避位置、
縫製開始位置、縫製中位置への切換えを確実に行うこと
ができる。According to a twelfth aspect of the present invention, there is provided a buttonhole sewing machine.
In any one of the first to ninth aspects, the actuator is a pulse motor. The pulse motor is driven and controlled, and the presser foot lifting and lowering mechanism and the upper thread cutting mechanism are driven at an appropriate timing according to the driving amount.In the upper thread cutting mechanism, the cutting position of the thread cutting member, the retreat position,
Switching to the sewing start position and the sewing position can be reliably performed.

【００３１】[0031]

【発明の実施の形態】以下、本発明の実施の形態につい
て図面を参照しながら説明する。本実施形態は、例えば
図４に示すように、加工布１に穴かがり縫目２とボタン
穴３を形成する穴かがりミシンに、本発明を適用した場
合の一例である。尚、図１、図２の前後左右を前後左右
として説明する。Embodiments of the present invention will be described below with reference to the drawings. This embodiment is an example of a case where the present invention is applied to an overlock sewing machine that forms an overlock stitch 2 and a buttonhole 3 on a work cloth 1 as shown in FIG. 1 and 2 are referred to as front, rear, left and right.

【００３２】図１〜図３、図１１に示すように、穴かが
りミシンＭは、ベッド部５と脚柱部６とアーム部７を有
すると共に、縫目形成機構１０、布送り機構１１、布押
え昇降機構１２、上糸切断機構１３、下糸切断機構１
４、ボタン穴形成機構１５を備えている。布押え昇降機
構１２により布押え２２が昇降駆動され、布押え２２に
より加工布１が布送り機構１１の送り部材２０に押えら
れ、この状態で、布送り機構１１により加工布１が送り
部材２０及び布押え２２と一体的に前後方向に送られ、
その加工布１に縫目形成機構１０により穴かがり縫目２
が形成される。As shown in FIG. 1 to FIG. 3 and FIG. 11, the holing machine M has a bed 5, a pillar 6 and an arm 7, a stitch forming mechanism 10, a cloth feeding mechanism 11, and a cloth feeding mechanism. Presser lifting mechanism 12, Upper thread cutting mechanism 13, Lower thread cutting mechanism 1
4. A button hole forming mechanism 15 is provided. The presser foot 22 is driven up and down by the presser foot lifting mechanism 12, and the work cloth 1 is pressed by the feed member 20 of the cloth feed mechanism 11 by the presser foot 22. In this state, the work cloth 1 is moved by the cloth feed mechanism 11 to the feed member 20. And is fed in the front-rear direction integrally with the presser foot 22,
The seam 2 is formed on the work cloth 1 by the seam forming mechanism 10.
Is formed.

【００３３】穴かがり縫目２の縫製前又は縫製途中又は
縫製後に、ボタン穴形成機構１５により穴かがり縫目２
の内側にボタン穴３が形成される。加工布１に穴かがり
縫目２とボタン穴３が形成されると、上糸切断機構１３
により上糸が切断されると共に下糸切断機構１４により
下糸が切断され、その後、布押え昇降機構１２により布
押え２２が上昇され、この状態で、加工布１をずらした
り取替えたりしてセットすることができる。Before, during or after the sewing of the buttonhole seam 2, the buttonhole forming mechanism 15 forms the buttonhole seam 2
The button hole 3 is formed inside the. When the buttonhole 3 and the buttonhole 3 are formed in the work cloth 1, the upper thread cutting mechanism 13
, The lower thread is cut by the lower thread cutting mechanism 14, and then the presser foot 22 is raised by the presser foot lifting mechanism 12. In this state, the work cloth 1 is set by shifting or replacing the work cloth 1. can do.

【００３４】以下、各機構１０〜１５について説明す
る。縫目形成機構１０は、図３に示すように、針棒１
６、縫針１７、天秤（図示略）、回転釜からなる糸捕捉
器（図示略）等を有する。針棒１６はミシンモータ１８
（図１１参照）により回転駆動される上軸１９等を介し
て昇降駆動され、針棒１６の下端に装着された縫針１７
に供給される上糸が糸捕捉器により捕捉され、下糸と交
絡して縫目が形成される。Hereinafter, each of the mechanisms 10 to 15 will be described. The stitch forming mechanism 10 includes a needle bar 1 as shown in FIG.
6, a sewing needle 17, a balance (not shown), a thread catcher (not shown) composed of a rotary hook, and the like. Needle bar 16 is a sewing machine motor 18
The sewing needle 17 mounted on the lower end of the needle bar 16 is driven up and down via an upper shaft 19 and the like which are driven to rotate by the drive shaft (see FIG.
Is captured by the thread catcher and interlaced with the lower thread to form a seam.

【００３５】布送り機構１１は加工布１を前後方向への
み布送りするものであるため、針棒１６と縫針１７が左
右に針振りされて、穴かがり縫目２（千鳥縫目と閂止め
縫目等）が縫製可能になる。尚、脚柱部６の後側に突出
した上軸１９の後端部に、回動操作部材１８ａが固着さ
れ、この回動操作部材１８ａとミシンモータ１８により
駆動される駆動プーリ（図示略）にタイミングベルト１
８ｂが掛装されて、ミシンモータ１８の駆動力が上軸１
９に伝達される。Since the cloth feed mechanism 11 feeds the work cloth 1 only in the front-rear direction, the needle bar 16 and the sewing needle 17 are swung right and left to form the hole stitching 2 (staggered stitch and bartacking). Seam etc.) can be sewn. A turning operation member 18a is fixed to the rear end of the upper shaft 19 projecting to the rear side of the pillar 6, and a driving pulley (not shown) driven by the turning operation member 18a and the sewing machine motor 18. Timing belt 1
8b, the driving force of the sewing machine motor 18 is
9 is transmitted.

【００３６】布送り機構１１は、ベッド部５に前後方向
に移動自在にガイド支持された前後方向に長い矩形板状
の送り部材２０と、この送り部材２０を前後方向に送り
駆動する布送りモータ２１（図１１参照）を有する。布
押え２２は押え腕２３の前端部に連結され、加工布１の
うち穴かがり縫目２の形成予定部の外周側部分を送り部
材２０に枠状に押える。The cloth feed mechanism 11 includes a rectangular plate-like feed member 20 which is supported by the bed portion 5 so as to be movable in the front-rear direction, and a cloth feed motor which feeds and drives the feed member 20 in the front-rear direction. 21 (see FIG. 11). The cloth presser 22 is connected to the front end of the presser arm 23, and presses the outer peripheral portion of the portion of the work cloth 1 where the overlock stitch 2 is to be formed by the feed member 20 in a frame shape.

【００３７】送り腕２３は上方凸状に湾曲した形状で前
後方向に長く、その後端部分は脚柱部６の近くまで達し
ている。送り腕２３の後端部は送り部材２０に連結され
た可動体（図示略）に左右軸心回りに回動可能に連結さ
れている。これにより、布押え２２は送り腕２３及び送
り部材２０と一体的に前後に移動し、送り腕２３と一体
的に昇降する。The feed arm 23 has an upwardly convex curved shape and is long in the front-rear direction, and its rear end portion reaches near the pillar 6. The rear end of the feed arm 23 is connected to a movable body (not shown) connected to the feed member 20 so as to be rotatable around the left and right axes. As a result, the presser foot 22 moves back and forth integrally with the feed arm 23 and the feed member 20, and moves up and down integrally with the feed arm 23.

【００３８】さて、この穴かがりミシンＭには、布押え
昇降機構１２と上糸切断機構１３と下糸切断機構１４を
連動連結する連動連結機構５０と、この連動連結機構５
０を介して布押え昇降機構１２と上糸切断機構１３と下
糸切断機構１４を駆動する共通のアクチュエータとして
のパルスモータ５１が設けられている。尚、この連動連
結機構５０については後で詳細に説明する。Now, an interlocking connection mechanism 50 for interlockingly connecting the presser foot lifting mechanism 12, the upper thread cutting mechanism 13 and the lower thread cutting mechanism 14, and an interlocking connection mechanism 5
A pulse motor 51 is provided as a common actuator for driving the presser foot lifting / lowering mechanism 12, the upper thread cutting mechanism 13, and the lower thread cutting mechanism 14 through the same. The interlocking connection mechanism 50 will be described later in detail.

【００３９】布押え昇降機構１２は上下に長い連結ロッ
ド２５を有し、その連結ロッド２５の下端部が押え腕２
３の前端部に前後方向へ相対移動可能に且つ上下方向へ
相対移動不能に連結され、この連結ロッド２５が連動連
結機構５０を介して昇降駆動される。The presser foot lifting mechanism 12 has a vertically long connecting rod 25, and the lower end of the connecting rod 25 is
3 is connected to the front end portion 3 so as to be relatively movable in the front-rear direction and not to be movable in the vertical direction, and the connection rod 25 is driven up and down via the interlocking connection mechanism 50.

【００４０】上糸切断機構１３は、図１、図５、図７〜
図９に示すように、加工布１に穴かがり縫目２とボタン
穴３の形成後に縫針１７近傍の切断位置（図１３参照）
で上糸を切断して保持する糸切り部材３０と、この糸切
り部材３０を前端部に連結し且つ後端部が鉛直な枢支軸
３２に（鉛直軸心回りに）回動可能に枢支され且つ布送
り方向（前後方向）へ移動可能に支持された糸切り連結
部材３１を有する。The upper thread cutting mechanism 13 is shown in FIGS.
As shown in FIG. 9, the cutting position near the sewing needle 17 after the formation of the buttonhole stitch 2 and the buttonhole 3 in the work cloth 1 (see FIG. 13).
A thread cutting member 30 that cuts and holds the upper thread, and connects the thread cutting member 30 to a front end portion and pivotally pivots (around a vertical axis) about a vertical pivot shaft 32 having a vertical rear end portion. The thread cutting connection member 31 is supported and movably supported in the cloth feeding direction (front-back direction).

【００４１】この上糸切断機構１３は、糸切り部材３０
を前記切断位置と、この切断位置に対して縫製開始時に
おける布送り方向（前方）と反対側（後側）に位置しボ
タン穴形成機構１５の布切断用カッター４８の移動軌跡
付近の縫製開始位置（図１４参照）と、切断位置の左側
に位置し前記移動軌跡から退避した退避位置（図１２、
図１６参照）と、縫製開始位置の左側かつ切断位置の後
側に位置し穴かがり縫目２の縫製中に待機させる縫製中
位置（図１５参照）の４位置に亙って位置切換え可能に
構成されている。The upper thread cutting mechanism 13 includes a thread cutting member 30.
The sewing position near the movement locus of the cloth cutting cutter 48 of the buttonhole forming mechanism 15 is located on the opposite side (rear side) of the cutting position and the cloth feeding direction (front) at the start of sewing with respect to the cutting position. Position (see FIG. 14) and a retreat position (FIG. 12,
The position can be switched over four positions: a sewing position (see FIG. 15), which is located on the left side of the sewing start position and behind the cutting position, and waits while sewing the buttonhole stitch 2. It is configured.

【００４２】糸切り部材３０は１対の刃３０ａ，３０ｂ
（固定刃３０ａと可動刃３０ｂ）と糸保持バネ３０ｃを
有し、固定刃３０ａに対して可動刃３０ｂが開閉可能に
鉛直軸心回りに枢支されている。上糸切断機構１３は、
１対の開いた刃３０ａ，３０ｂを切断位置で閉じ、１対
の閉じた刃３０ａ，３０ｂを縫製開始位置又は縫製中位
置で開ける刃開閉機構４０を含んでいる。The thread cutting member 30 has a pair of blades 30a, 30b.
It has a (fixed blade 30a and a movable blade 30b) and a thread holding spring 30c, and the movable blade 30b is pivotally supported about the vertical axis so as to be openable and closable with respect to the fixed blade 30a. The upper thread cutting mechanism 13
It includes a blade opening / closing mechanism 40 that closes the pair of open blades 30a, 30b at a cutting position and opens the pair of closed blades 30a, 30b at a sewing start position or a sewing position.

【００４３】刃開閉機構４０は、図７、図９に示すよう
に、可動刃３０ｂに形成されて上方へ立ち上がる被押動
部４１と、この被押動部４１を押動して可動刃３０ｂを
開ける第１押動部４２と、被押動部４１を押動して可動
刃３０ｂを閉じる第２押動部４３とを有する。第１，第
２押動部４２，４３は押え腕２３に固定的に設けられ、
これらが相対的に移動し係合して、１対刃３０ａ，３０
ｂが開閉される。As shown in FIGS. 7 and 9, the blade opening / closing mechanism 40 includes a pushed portion 41 formed on the movable blade 30b and rising upward, and a pushable portion 41 for pushing the pushed portion 41 to move the movable blade 30b. And a second pushing portion 43 that pushes the pushed portion 41 to close the movable blade 30b. The first and second pressing portions 42 and 43 are fixedly provided on the holding arm 23,
These move relatively and engage with each other to make the pair of blades 30a, 30
b is opened and closed.

【００４４】糸切り連結部材３１の後端部分には、上下
１対の前後に長い長穴３１ａが形成され、これら長穴３
１ａに１対の係合部材３４が夫々離脱不能に摺動自在に
係合している。これら上下１対の係合部材３４は、前記
枢支軸３２の下部に連結され、この枢支軸３２の上部が
ミシン機枠に回転自在に支持されている。これにより、
糸切り連結部材３１の後端部が鉛直軸心回りに回動可能
に枢支され前後方向へ移動可能に支持されている。At the rear end of the thread cutting connecting member 31, a pair of long holes 31a are formed in front and back of the upper and lower pairs.
A pair of engaging members 34 are slidably engaged with 1a, respectively, so as not to be detached. The pair of upper and lower engaging members 34 are connected to a lower portion of the pivot shaft 32, and an upper portion of the pivot shaft 32 is rotatably supported by the sewing machine frame. This allows
The rear end of the thread cutting connection member 31 is pivotally supported so as to be rotatable around a vertical axis and is supported so as to be movable in the front-rear direction.

【００４５】図５、図６に示すように、糸切り連結部材
３１には、前記１対の長穴３１ａの他に、前後方向中央
部よりも少し前側に前後に長い矩形の長穴３１ｂが形成
され、長穴３１ａ，３１ｂの間に円弧穴３１ｃが形成さ
れ、糸切り連結部材３１の前後方向略中央部には可動部
材３３が設けられている。As shown in FIGS. 5 and 6, the thread cutting connecting member 31 has, in addition to the pair of elongated holes 31a, a rectangular elongated hole 31b which is slightly longer in the front and rear direction than the center in the front and rear direction. An arc hole 31c is formed between the elongated holes 31a and 31b, and a movable member 33 is provided at a substantially central portion in the front-rear direction of the thread cutting connection member 31.

【００４６】この可動部材３３の大部分は糸切り連結部
材３１の左側に配設され、その可動部材３３に形成され
た前後方向向きの長穴３３ａに、糸切り連結部材３１に
固着された２本のボルト３４の軸部が摺動自在に係合し
て、可動部材３３が糸切り連結部材３１に対して前後移
動可能にガイド支持されている。可動部材３３は、前端
から右方へ屈曲する被押動部３３ｂと、後端から左方へ
屈曲する第１係合部３３ｃを有する。Most of the movable member 33 is disposed on the left side of the thread cutting connection member 31, and is fixed to the thread cutting connection member 31 in a longitudinal hole 33 a formed in the movable member 33 in the front-rear direction. The shaft portions of the bolts 34 are slidably engaged with each other, and the movable member 33 is guided and supported so as to be movable back and forth with respect to the thread cutting connection member 31. The movable member 33 has a pushed portion 33b bent rightward from the front end, and a first engagement portion 33c bent leftward from the rear end.

【００４７】被押動部３３ｂは、長穴３１ｂを挿通して
その右側へ突出し、可動部材３３はこの長穴３１ｂの略
長さ分のストロークだけ糸切り連結部材３１に対して前
後に移動可能である。第１係合部３３ｃは、その後側に
おいて糸切り連結部材３１に固着されたバネ取付部材３
５に引張りコイルバネ３６で連結され、可動部材３３が
糸切り連結部材３１に対して後方へ付勢されている。The pushed portion 33b penetrates the elongated hole 31b and protrudes to the right thereof, and the movable member 33 can be moved back and forth with respect to the thread cutting connecting member 31 by a stroke substantially the length of the elongated hole 31b. It is. The first engagement portion 33c is provided with a spring mounting member 3 fixed to the thread cutting connection member 31 on the rear side.
5, the movable member 33 is urged rearward with respect to the thread cutting connection member 31.

【００４８】糸切り連結部材３１の前後方向中央部より
も前側の上端に右方へ延びるバネ取付部材３７が固着さ
れ、そのうちの右前端部が、糸切り連結部材３１の左側
においてミシン機枠に引張りコイルバネ３８で連結され
て、糸切り連結部材３１が枢支軸３２を中心として左側
へ回動付勢されている。糸切り連結部材３１の上端部に
は左方へ全体的に張り出す板状の張出し部が形成され、
その張出し部の前部に第２係合部３１ｄが形成され、第
２係合部３１ｄはその前後方向中央部分において局部的
に左方へ突出する段部３１ｅを有する。A spring mounting member 37 extending rightward is fixed to the upper end of the thread cutting connection member 31 on the front side of the center in the front-rear direction, and the right front end of the spring mounting member 37 is attached to the sewing machine frame on the left side of the thread cutting connection member 31. The thread cutting connection member 31 is urged to rotate leftward about the pivot shaft 32 by being connected by a tension coil spring 38. At the upper end portion of the thread cutting connecting member 31, a plate-shaped projecting portion projecting entirely to the left is formed,
A second engaging portion 31d is formed at a front portion of the overhang portion, and the second engaging portion 31d has a stepped portion 31e that locally projects leftward at a central portion in the front-rear direction.

【００４９】ここで、連動連結機構５０の第２駆動系５
８の第２連桿６６に、前記第１係合部３３ｃと係合可能
な板状の第１被係合部４５と、前記第２係合部３１ｄと
係合可能なコロからなる第２被係合部４６が装着されて
いる。Here, the second drive system 5 of the interlocking connection mechanism 50
The second second connecting rod 66 includes a plate-shaped first engaged portion 45 engageable with the first engaging portion 33c and a second roller formed of a roller engageable with the second engaging portion 31d. The engaged portion 46 is mounted.

【００５０】第１係合部３３ｃと第１被係合部４５が係
合状態で糸切り部材３０を縫製開始位置に保持し、非係
合状態で糸切り部材３０の退避位置又は縫製中位置への
切換えを許容する。即ち、糸切り部材３０は引張りコイ
ルバネ３８により退避位置又は縫製中位置側へ付勢され
ているが、第２係合部３１ｄと第２被係合部４６が係合
した状態で退避位置又切断位置又は縫製中位置に保持さ
れる。When the first engaging portion 33c and the first engaged portion 45 are in the engaged state, the thread cutting member 30 is held at the sewing start position, and in the non-engaged state, the thread cutting member 30 is in the retracted position or the sewing position. To allow switching. In other words, the thread cutting member 30 is urged to the retracted position or the sewing position by the tension coil spring 38, but the retracted position or the cutting position is performed when the second engaging portion 31d and the second engaged portion 46 are engaged. Position or the position during sewing.

【００５１】前記ボタン穴形成機構１５は、図７、図８
に示すように、布切断用カッター４８と、布切断用カッ
ター４８を昇降駆動するソレノイドアクチュエータ４９
（図１１参照）を有し、布切断用カッター４８を加工布
１に落としてボタン穴３を形成する。布切断用カッター
４８は針棒１６と縫針１７の直ぐ後方に位置に配設さ
れ、糸切り部材３０が縫製開始位置と切断位置に位置し
てる状態では、下降する布切断用カッター４８と干渉す
る。The button hole forming mechanism 15 is shown in FIGS.
As shown in the figure, a cloth cutting cutter 48 and a solenoid actuator 49 for driving the cloth cutting cutter 48 up and down.
(See FIG. 11), and the button hole 3 is formed by dropping the cloth cutting cutter 48 onto the work cloth 1. The cloth cutting cutter 48 is disposed immediately behind the needle bar 16 and the sewing needle 17, and interferes with the descending cloth cutting cutter 48 when the thread cutting member 30 is located at the sewing start position and the cutting position. .

【００５２】尚、布切断用カッター４８の刃の長さが形
成予定のボタン穴３の長さと同じ場合、加工布１に布切
断用カッター４８を１回落としてボタン穴３を形成し、
布切断用カッター４８の刃の長さが形成予定のボタン穴
３の長さよりも短い場合、加工布１に布切断用カッター
４８を複数回落としてボタン穴３を形成する。When the length of the blade of the cloth cutting cutter 48 is the same as the length of the button hole 3 to be formed, the cloth cutting cutter 48 is dropped on the work cloth 1 once to form the button hole 3.
If the blade length of the cloth cutting cutter 48 is shorter than the length of the button hole 3 to be formed, the cloth cutting cutter 48 is dropped on the work cloth 1 a plurality of times to form the button hole 3.

【００５３】次に、連動連結機構５０について説明す
る。連動連結機構５０は、押え昇降機構１２と上糸切断
機構１３と下糸切断機構１４を連動連結する機構であ
り、図１〜図３、図１０に示すように、昇降板５２、鉛
直レバー５３、Ｌ形リンク５４，５５、連動板５６（連
動連結部材に相当する）、第１，第２駆動系５７，５８
等を備えている。Next, the interlocking connection mechanism 50 will be described. The interlocking connection mechanism 50 is a mechanism that interlocks and connects the presser lifting mechanism 12, the upper thread cutting mechanism 13, and the lower thread cutting mechanism 14, and as shown in FIGS. 1 to 3 and 10, a lifting plate 52, a vertical lever 53 , L-shaped links 54 and 55, interlocking plate 56 (corresponding to interlocking connection member), first and second drive systems 57 and 58
Etc. are provided.

【００５４】パルスモータ５１は脚柱部６の上下方向略
中央部に左右方向向きに設けられ、昇降板５２は１対の
ガイドロッド５２ａにより昇降自在にガイドされ、パル
スモータ５１の出力軸に固着されたピニオン５１ａが、
昇降板５２の下端部に形成されたラック５２ａに噛合し
ている（図１０参照）。昇降板５２の２股部５２ｃが鉛
直レバー５３の上端部の係合ピン５３ａに係合し、パル
スモータ５１により昇降板５２と共に鉛直レバー５３が
昇降駆動される。The pulse motor 51 is provided at a substantially central portion in the vertical direction of the pillar 6 in the horizontal direction. The lifting plate 52 is guided by a pair of guide rods 52a so as to be able to move up and down, and is fixed to the output shaft of the pulse motor 51. The pinion 51a is
It meshes with a rack 52a formed at the lower end of the lifting plate 52 (see FIG. 10). The forked portion 52c of the elevating plate 52 is engaged with the engaging pin 53a at the upper end of the vertical lever 53, and the vertical lever 53 is driven up and down by the pulse motor 51 together with the elevating plate 52.

【００５５】１対のＬ形リンク５４，５５はアーム部７
の前後に対称に配設され、夫々左右軸心回りに回動可能
にミシン機枠に支持されている。連動板５６は前後に長
い鉛直板状に形成され、１対のＬ形リンク５４，５５の
間に配設され、その前後両端部が夫々のＬ形リンク５
４，５５の上端部に回動自在に連結されている。A pair of L-shaped links 54 and 55 are
Are symmetrically disposed in front and rear of the sewing machine, and are respectively supported by the sewing machine frame so as to be rotatable around the left and right axes. The interlocking plate 56 is formed in the shape of a long vertical plate in the front and rear direction, and is disposed between the pair of L-shaped links 54 and 55.
4, 55 are rotatably connected to the upper end.

【００５６】Ｌ形リンク５４の後端部に鉛直レバー５３
の上端部が回動可能に連結され、Ｌ形リンク５５の前端
部に布押え昇降機構１２の連結ロッド２５が連結されて
いる。鉛直レバー５３が昇降されると、Ｌ形リンク５
４，５５が回動され、連動板５６が少し昇降しつつ前後
方向へ駆動される。連動板５６が前方へ移動すると布押
え２２が下降し、連動板５６が後方へ移動すると布押え
２２が上昇する。A vertical lever 53 is provided at the rear end of the L-shaped link 54.
Is rotatably connected to the front end of the L-shaped link 55, and the connecting rod 25 of the presser foot elevating mechanism 12 is connected thereto. When the vertical lever 53 is moved up and down, the L-shaped link 5
4, 55 are rotated, and the interlocking plate 56 is driven in the front-rear direction while slightly moving up and down. When the interlocking plate 56 moves forward, the presser foot 22 moves down, and when the interlocking plate 56 moves rearward, the presser foot 22 rises.

【００５７】第１駆動系５７は、連動板５６の駆動力を
糸切り連結部材３１に伝達して糸切り連結部材３１を前
後方向へ駆動する。第１駆動系５７は、ミシン機枠に左
右軸心回りに枢支されたリンク部材６０と、リンク部材
６０に上端部が固定的に連結された第１連桿６１を有
し、リンク部材６０の先端部の係合ピン６０ａが連動板
５６に形成された湾曲状の第１ガイド穴５６ａに係合
し、第１連桿６１の下端部の係合ピン６１ａが糸切り連
結部材３１の円弧穴３１ｃに係合している。The first drive system 57 transmits the driving force of the interlocking plate 56 to the thread cutting connection member 31 to drive the thread cutting connection member 31 in the front-rear direction. The first drive system 57 includes a link member 60 pivotally supported on the sewing machine frame about the left-right axis, and a first connecting rod 61 having an upper end fixedly connected to the link member 60. The engagement pin 60a at the distal end of the first engagement rod engages with the curved first guide hole 56a formed in the interlocking plate 56, and the engagement pin 61a at the lower end of the first connecting rod 61 is connected to the arc of the thread cutting connection member 31. It is engaged with the hole 31c.

【００５８】第２駆動系５８は、連動板５６の駆動力を
第１，第２被係合部４５，４６に伝達して第１，第２被
係合部４５，４６を略前後方向へ駆動する。第２駆動系
５８は、ミシン機枠に左右軸心回りに枢支されたリンク
部材６５と、リンク部材６５に上端部が固定的に連結さ
れた第２連桿６６を有し、リンク部材６５の先端部の係
合ピン６５ａが連動板５６に形成された湾曲状の第２ガ
イド穴５６ｂに係合し、第２連桿６６の下端部に第１，
第２被係合部４５，４６が設けられている。The second drive system 58 transmits the driving force of the interlocking plate 56 to the first and second engaged portions 45 and 46 to move the first and second engaged portions 45 and 46 substantially in the front-rear direction. Drive. The second drive system 58 has a link member 65 pivotally supported on the sewing machine frame about the left-right axis, and a second connecting rod 66 having an upper end fixedly connected to the link member 65. The engagement pin 65a at the distal end of the second engagement rod engages with the curved second guide hole 56b formed in the interlocking plate 56, and
The second engaged portions 45 and 46 are provided.

【００５９】尚、図示していないが、鉛直レバー５３の
下端部分に下糸切断機構１４が連結されている。この下
糸切断機構１４として、例えば、本願出願人が出願した
穴かがりミシンの下糸切断機構（例えば、特開平１１−
１５６０７３号公報の下糸切断機構）と同等のものを適
用してもよい。Although not shown, the lower thread cutting mechanism 14 is connected to the lower end of the vertical lever 53. As the lower thread cutting mechanism 14, for example, a lower thread cutting mechanism applied by the applicant of the present application (for example, Japanese Unexamined Patent Application Publication No.
A mechanism equivalent to the lower thread cutting mechanism disclosed in Japanese Patent No. 156073 may be applied.

【００６０】ここで、この穴かがりミシンＭの制御装置
７０を含む制御系について、図１１のブロック図に基づ
いて簡単に説明する。制御装置７０は、ＣＰＵ７０ａと
ＲＯＭ７０ｂとＲＡＭ７０ｃと入出力インターフェース
７０ｄを有し、これら７０ａ〜７０ｄはバス７０ｅによ
り互いに接続されている。入出力インターフェース７０
ｄに、モータ１８，２１，５１の為の駆動回路７１ａ〜
７１ｃと、ソレノイドアクチュエータ４９の為の駆動回
路７１ｄと、フットペダル７２が接続されている。そし
て、これらモータ１８，２１，５１とソレノイドアクチ
ュエータ４９を駆動制御し、次に説明する動作を達成す
るための制御プログラムがＲＯＭ７０ｂに格納されてい
る。Here, a control system including the control device 70 of the holing machine M will be briefly described based on the block diagram of FIG. The control device 70 has a CPU 70a, a ROM 70b, a RAM 70c, and an input / output interface 70d, and these 70a to 70d are mutually connected by a bus 70e. I / O interface 70
d, drive circuits 71a to 71 for the motors 18, 21, 51
71c, a drive circuit 71d for the solenoid actuator 49, and a foot pedal 72 are connected. A control program for controlling the driving of these motors 18, 21, 51 and the solenoid actuator 49 and achieving the operation described below is stored in the ROM 70b.

【００６１】上記穴かがりミシンＭの作用について説明
する。布押え昇降機構１２と上糸切断機構１３と下糸切
断機構１４を連動連結する連動連結機構５０と、この連
動連結機構５０を介して、上記３つの機構１２〜１４を
駆動するパルスモータ５１を設け、上糸切断機構１３の
糸切り部材３０を、図１２と図１６の退避位置、図１３
の切断位置、図１４の縫製開始位置、図１５の縫製中位
置の４位置に位置切換えすることがきる。The operation of the overlock sewing machine M will be described. An interlocking connection mechanism 50 that interlocks and connects the presser foot lifting mechanism 12, the upper thread cutting mechanism 13, and the lower thread cutting mechanism 14, and a pulse motor 51 that drives the above three mechanisms 12 to 14 via the interlocking connection mechanism 50. 13 and the thread cutting member 30 of the upper thread cutting mechanism 13 is moved to the retracted position shown in FIGS.
14, the sewing start position in FIG. 14, and the sewing position in FIG. 15 can be switched to four positions.

【００６２】パルスモータ５１により連動連結機構５０
の連動板５６が略前後方向へ所定ストローク移動駆動さ
れ、その間に、布押え昇降機構１２と上糸切断機構１３
と下糸切断機構１４が駆動され、特に、上糸切断機構１
３においては、糸切り部材３０が、第１駆動系５７等を
介して切断位置と縫製開始位置間の距離（退避位置と縫
製中位置間の距離）だけ前後に移動し、第２駆動系５８
等を介して切断位置と退避位置間の距離（縫製開始位置
と縫製中位置間の距離）だけ左右に移動する。The interlocking connection mechanism 50 is driven by the pulse motor 51.
Of the presser foot raising and lowering mechanism 12 and the upper thread cutting mechanism 13
And the lower thread cutting mechanism 14 are driven.
In 3, the thread cutting member 30 moves back and forth by a distance between the cutting position and the sewing start position (a distance between the retracted position and the sewing position) via the first drive system 57 and the like, and the second drive system 58
And so on, by the distance between the cutting position and the retreat position (the distance between the sewing start position and the sewing position).

【００６３】糸切り部材３０が図１２の退避位置に位置
しているとき、糸切り部材３０が上糸を保持した状態
で、第２係合部３１ｄのうち段部３１ｅの前側部分と第
２被係合部４６が係合している。この状態で、連動板５
６が略後方限界位置に位置し、布押え昇降機構１２によ
り布押え２２が上昇位置に保持されているため、作業者
が加工布１をずらしたり取替えたりしてセットすること
ができる。When the thread cutting member 30 is located at the retracted position shown in FIG. 12, the front portion of the stepped portion 31e and the second portion of the second engagement portion 31d are held in a state where the thread cutting member 30 holds the upper thread. The engaged portion 46 is engaged. In this state, the interlocking plate 5
6 is located at the substantially rear limit position, and the presser foot 22 is held at the ascending position by the presser foot elevating mechanism 12, so that the operator can set the work cloth 1 by shifting or replacing it.

【００６４】加工布１をセットした後に、フットペダル
７２等の操作部材を操作して、パルスモータ５１を駆動
し、連動連結機構５０の連動板５６を前方へ移動させ
る。連動板５６が略後方限界位置から前方限界位置へ移
動する途中で、布押え２２が下降位置に下降して加工布
１を送り部材２０に完全に押えることができる。尚、フ
ットペダル７２の所定操作により、布押え２２により加
工布１を押えた段階で一旦動作が停止するが、それ以降
の動作を連続的に行うようにしてもよい。After setting the work cloth 1, the operation member such as the foot pedal 72 is operated to drive the pulse motor 51 to move the interlocking plate 56 of the interlocking coupling mechanism 50 forward. While the interlocking plate 56 moves from the substantially rear limit position to the front limit position, the work clamp 22 moves down to the lower position, and the work cloth 1 can be completely pressed by the feed member 20. The operation is temporarily stopped when the work cloth 1 is pressed by the cloth presser 22 by a predetermined operation of the foot pedal 72, but the subsequent operation may be continuously performed.

【００６５】連動板５６が略後方限界位置から前方限界
位置へ移動する間、先ず、図１３に示すように、糸切り
連結部材３１は前後方向に対しては停止した状態で、第
２駆動系５８により第１，第２被係合部４５，４６が後
方へ移動して、第２被係合部４６が第２係合部３１ｄの
段部３１ｅと係合する。これにより、糸切り連結部材３
１が右方へ押動され、糸切り部材３０が右方へ移動して
切断位置に切換わる。While the interlocking plate 56 moves from the substantially rear limit position to the front limit position, first, as shown in FIG. 13, the thread cutting connection member 31 is stopped in the front-rear direction and the second drive system is stopped. 58 causes the first and second engaged portions 45 and 46 to move rearward, and the second engaged portion 46 engages with the step 31e of the second engaging portion 31d. Thereby, the thread cutting connecting member 3
1 is pushed rightward, the thread cutting member 30 moves rightward, and switches to the cutting position.

【００６６】続いて、連動板５６が前方へ移動すると、
図１４に示すように、第２駆動系５８により第１，第２
被係合部４５，４６が後方へ移動すると共に、第１駆動
系４７により糸切り連結部材３１も後方へ移動し、第２
係合部３１ｄの段部３１ｅと第２被係合部４６の係合が
解除され、第１係合部３３ｃと第１被係合部４５が係合
して、糸切り部材３０が縫製開始位置に切換わる。Subsequently, when the interlocking plate 56 moves forward,
As shown in FIG. 14, the first and second driving systems 58
As the engaged portions 45 and 46 move rearward, the thread drive connecting member 31 also moves rearward by the first drive system 47,
The engagement between the step 31e of the engaging portion 31d and the second engaged portion 46 is released, the first engaging portion 33c and the first engaged portion 45 are engaged, and the thread cutting member 30 starts sewing. Switch to position.

【００６７】第２係合部３１ｄと第２被係合部４６が係
合解除するとき、第１係合部３３ｃの左側に第１被係合
部４５が位置するため、第１係合部３３ｃと第１被係合
部４５は確実に係合する。尚、第２係合部３１ｄのうち
段部３１ｅの前端側付近と第２被係合部４６が係合して
いる状態では、布押え２２は既に下降位置に位置して加
工布１を押えた状態になる。When the second engaging portion 31d and the second engaged portion 46 are disengaged, the first engaged portion 45 is located on the left side of the first engaging portion 33c. 33c and the first engaged portion 45 are securely engaged. In a state where the second engaged portion 46 is engaged with the vicinity of the front end side of the step portion 31e of the second engaging portion 31d, the cloth presser 22 is already at the lowered position and presses the work cloth 1. State.

【００６８】糸切り部材３０が縫製開始位置に位置して
いる状態から穴かがり縫目２の縫製が開始されるが、本
案の場合、加工布１に次の穴かがり縫目２の縫製前にボ
タン穴形成機構１５によりボタン穴３を形成する為に、
布押え２２により加工布１を押えた状態で、糸切り部材
３０が上糸を保持して退避位置に切り換わる。The sewing of the buttonhole stitch 2 is started from the state where the thread cutting member 30 is located at the sewing start position, but in the case of the present invention, before the sewing of the next buttonhole stitch 2 on the work cloth 1, In order to form the buttonhole 3 by the buttonhole forming mechanism 15,
In a state where the work cloth 1 is pressed by the work clamp 22, the thread cutting member 30 switches to the retracted position while holding the upper thread.

【００６９】この場合、糸切り部材３０が図１４の縫製
開始位置に位置している状態から、パルスモータ５１を
逆方向へ駆動する。すると、連動板５６が後方へ移動す
るため、第１駆動系４７により糸切り連結部材３１が前
方へ移動すると共に、第２駆動系５８により第１，第２
被係合部４５，４６が前方へ移動し、第２係合部３１ｄ
と第２被係合部４６が係合し、第１係合部３３ｃと第１
被係合部４５が係合解除して、先ず、糸切り部材３０が
図１３の切断位置に切換わる。In this case, the pulse motor 51 is driven in the reverse direction from the state where the thread cutting member 30 is located at the sewing start position in FIG. Then, since the interlocking plate 56 moves rearward, the thread cutting connection member 31 moves forward by the first drive system 47, and the first and second drive systems 58
The engaged portions 45 and 46 move forward, and the second engaging portion 31d
And the second engaged portion 46 are engaged, and the first engaging portion 33c and the first
When the engaged portion 45 is released from the engagement, first, the thread cutting member 30 is switched to the cutting position in FIG.

【００７０】続いて、連動板５６が前方へ移動すると、
糸切り連結部材３１は前後方向に対しては停止した状態
で、第２駆動系５８により第１，第２被係合部４５，４
６が前方へ移動して、第２係合部３１ｄのうち段部３１
ｅの前側部分と第２被係合部４６が係合し、糸切り部材
３０が上糸を保持して図１２の退避位置に切換わる。Subsequently, when the interlocking plate 56 moves forward,
With the thread cutting connecting member 31 stopped in the front-rear direction, the first and second engaged portions 45, 4 are driven by the second drive system 58.
6 moves forward, and the stepped portion 31 of the second engagement portion 31d is moved.
The front engagement portion e engages with the second engaged portion 46, and the thread cutting member 30 holds the upper thread and switches to the retracted position in FIG.

【００７１】第２係合部３１ｄのうち段部３１ｅの前端
側付近と第２被係合部４６が係合した状態で、パルスモ
ータ５１の駆動を停止するため、前述のように、布押え
２２により加工布１を押えた状態を保持できる。尚、段
部３１ｅと第２被係合部４６が係合解除するとき、第１
係合部３３ｃが第１被係合部４５の後側に位置するた
め、第１係合部３３ｃと第１被係合部４５が係合するこ
とはない。Since the driving of the pulse motor 51 is stopped when the second engaged portion 46 is engaged with the vicinity of the front end side of the step portion 31e of the second engaging portion 31d, as described above, The state in which the work cloth 1 is pressed can be held by the work 22. When the stepped portion 31e and the second engaged portion 46 are disengaged, the first
Since the engaging portion 33c is located behind the first engaged portion 45, the first engaging portion 33c and the first engaged portion 45 do not engage with each other.

【００７２】その後、加工布１を布切断位置に布送りし
て位置決めしてから、ボタン穴形成機構１５を作動さ
せ、布切断用カッター４８を１又は複数回下降して加工
布１に落としてボタン穴３が形成される。その後、前述
と同様に、糸切り部材３０を退避位置から切断位置を介
して縫製開始位置に切換え、穴かがり縫目２の縫製に備
える。Thereafter, the work cloth 1 is fed to the cloth cutting position and positioned, and then the buttonhole forming mechanism 15 is operated, and the cloth cutting cutter 48 is lowered one or more times to drop the work cloth 1 onto the work cloth 1. The button hole 3 is formed. Thereafter, the thread cutting member 30 is switched from the retracted position to the sewing start position via the cutting position in the same manner as described above to prepare for sewing of the buttonhole stitch 2.

【００７３】糸切り部材３０が上糸を保持して図１４の
縫製開始位置に位置している状態で、連動連結機構５０
を停止して縫製が行われる。ここで，布押え２２に連結
されて布と一体的に布送り方向へ移動する送り腕２３
は、糸切り連結部材３１の第１係合部３３ｃを押動可能
な押動部７５を有し、穴かがり縫目２の縫製開始直後
に、押動部７５が第１係合部３３ｃを押動して可動部材
３３を前方へ移動させる。In the state where the thread cutting member 30 holds the upper thread and is located at the sewing start position in FIG.
Is stopped and sewing is performed. Here, a feed arm 23 connected to the cloth presser 22 and moving integrally with the cloth in the cloth feed direction.
Has a pushing portion 75 capable of pushing the first engaging portion 33c of the thread cutting connection member 31, and the pushing portion 75 engages the first engaging portion 33c immediately after the sewing of the buttonhole stitch 2 is started. Pushing moves the movable member 33 forward.

【００７４】すると、図１５に示すように、第１係合部
３３ｃと第１被係合部４５との係合が解除され、引張り
コイルバネ３８の付勢力により糸切り連動部材３１が左
方へ移動し、第２係合部３１ｄと第２被係合部４６が係
合して、糸切り部材３０が縫製中位置に切換わる。とこ
ろで、前述のように、刃開閉機構４０により、糸切り部
材３０が１対の閉じた刃３０ａ，３０ｂを縫製開始位置
又は縫製中位置で開けて上糸を開放するため、余分な上
糸は穴かがり縫目２の内側へ縫い込まれる。Then, as shown in FIG. 15, the engagement between the first engaging portion 33c and the first engaged portion 45 is released, and the thread cutting interlocking member 31 is moved leftward by the urging force of the tension coil spring 38. Then, the second engagement portion 31d and the second engaged portion 46 are engaged, and the thread cutting member 30 is switched to the sewing position. By the way, as described above, the thread opening / closing mechanism 40 causes the thread cutting member 30 to open the pair of closed blades 30a and 30b at the sewing start position or the sewing position to release the upper thread. It is sewn inside the hole stitch 2.

【００７５】穴かがり縫目２の形成後、糸切り部材３０
が図１５の縫製中位置に位置している状態から、連動板
５６が後方へ移動すると、図１６に示すように、第２駆
動系５８により第１，第２被係合部４５，４６が前方へ
移動すると共に、第１駆動系４７により糸切り連結部材
３１が前方へ移動して、糸切り部材３０が退避位置に切
換えられる。After the formation of the buttonhole seam 2, the thread cutting member 30
When the interlocking plate 56 moves rearward from the state where is located at the sewing position shown in FIG. 15, the first and second engaged portions 45 and 46 are moved by the second drive system 58 as shown in FIG. While moving forward, the thread cutting connection member 31 is moved forward by the first drive system 47, and the thread cutting member 30 is switched to the retracted position.

【００７６】その後、連動板５６が後方へ移動して、図
１３に示すように、糸切り連動部材３１は前後方向に対
して停止した状態で、第２駆動系５８により第１，第２
被係合部４５，４６が前方へ移動するため、第２係合部
３１ｅと第２被係合部４６が係合して、糸切り部材３０
が切断位置に切換わる。このとき、刃開閉機構４０によ
り、糸切り部材３０が１対の開いた刃３０ａ，３０ｂを
閉じて上糸を切断して保持する。Thereafter, the interlocking plate 56 is moved rearward, and as shown in FIG. 13, the first and second drive systems 58 stop the thread trimming interlocking member 31 in the front-rear direction.
Since the engaged portions 45 and 46 move forward, the second engaging portion 31e and the second engaged portion 46 are engaged, and the thread cutting member 30 is engaged.
Switches to the cutting position. At this time, the thread opening / closing mechanism 40 causes the thread cutting member 30 to close the pair of open blades 30a and 30b to cut and hold the upper thread.

【００７７】この際、連動連結機構５０を介して下糸切
断機構１４が連動して下糸を切断し、更に、布押え昇降
機構１２が連動して布押え２２が上昇して上昇位置に切
換わり、この動作説明で最初に説明した元の状態にな
る。尚、穴かがり縫目２の形成途中又は形成後に、ボタ
ン穴形成機構１５によりボタン穴を再度形成するように
布切断用カッター４８を加工布１に落とすことができ
る。At this time, the lower thread cutting mechanism 14 interlocks and cuts the lower thread via the interlocking connecting mechanism 50, and further, the presser foot lifting mechanism 12 interlocks and the presser foot 22 rises to switch to the ascending position. Instead, it returns to the original state described first in this operation description. During or after the formation of the buttonhole stitch 2, the cloth cutting cutter 48 can be dropped onto the work cloth 1 by the buttonhole forming mechanism 15 so that the buttonhole is formed again.

【００７８】このように、この穴かがりミシンＭによれ
ば、加工布１に次の穴かがり縫目２の縫製前にボタン穴
形成機構１５によりボタン穴３を形成する為に、上糸切
断機構１３の糸切り部材３０が上糸を保持して退避位置
に切り換わるので、ボタン穴形成機構１５の下降する布
切断用カッター４８が糸切り部材３０と干渉することな
く加工布１に落ちてボタン穴２を形成することができ
る。糸切り部材３０で上糸を保持した状態で、ボタン穴
２を形成することができるため、布切断用カッター４８
で上糸を切断したり、上糸が縫針１７から抜けたりする
等虞もなく、その後行われる穴かがり縫目２の縫製に支
障を来さない。As described above, according to the buttonhole sewing machine M, the buttonhole forming mechanism 15 forms the buttonhole 3 before sewing the next buttonhole stitch 2 on the work cloth 1. 13 is switched to the retracted position while holding the upper thread, so that the descending cloth cutting cutter 48 of the buttonhole forming mechanism 15 falls on the work cloth 1 without interfering with the thread cutting member 30 and the button Hole 2 can be formed. Since the buttonhole 2 can be formed in a state where the upper thread is held by the thread cutting member 30, the cloth cutting cutter 48 is used.
Thus, there is no risk that the upper thread is cut or the upper thread comes off from the sewing needle 17, and the sewing of the overlock stitch 2 performed thereafter is not hindered.

【００７９】尚、縫製途中又は縫製後は、糸切り部材３
０は図１５又は図１６に示す位置に存在するため、布切
断用カッター４８の落下の邪魔にならない。また、縫製
途中又は縫製後に布切断用カッター４８を落下させる場
合には、既に加工布１にはボタン穴２が形成されている
ため、それ程強く布切断用ソレノイドアクチュエータ４
９を駆動させる必要がなく、その駆動音を低減すること
ができる。During or after sewing, the thread cutting member 3
Since 0 is located at the position shown in FIG. 15 or FIG. 16, it does not hinder the cloth cutter 48 from dropping. When the cloth cutting cutter 48 is dropped during or after sewing, since the button hole 2 is already formed in the work cloth 1, the cloth cutting solenoid actuator 4 is not so strong.
9 does not need to be driven, and its driving noise can be reduced.

【００８０】穴かがり縫目２の縫製前だけでなく縫製途
中又は縫製後に、再度ボタン穴３を形成するように布切
断用カッター４８を加工布１に落とすことができ、これ
により、縫製前に形成したボタン穴３を、穴かがり縫目
２に縫い込まれた布のケバ等が塞いでも、そのケバを切
断することができるため、綺麗に開放したボタン穴３を
確実に形成することができる。The sewing cutter 48 can be dropped onto the work cloth 1 so as to form the buttonhole 3 again before or after sewing the buttonhole stitch 2, but before or after sewing. Even if the formed buttonhole 3 is closed by a button or the like of the cloth sewn into the buttonhole stitch 2, the buttonhole can be cut, so that the buttonhole 3 that is beautifully opened can be reliably formed. .

【００８１】布押え昇降機構１２と上糸切断機構１３と
下糸切断機構１４を連動連結機構５０により連結し、そ
の連動連結機構５０を介して共通のパルスモータ５１で
駆動するため、構造を簡単化し製作コストの低減を図る
ことが可能となる。布押え昇降機構１２の布押え２２に
より加工布１を押えた状態で、糸切り部材３０を退避位
置に切り換えることができるため、加工布１を布切断用
カッター４８に対応する位置に布送りして位置決めする
こともでき、ボタン穴２を確実に形成できる。Since the presser foot lifting mechanism 12, the upper thread cutting mechanism 13 and the lower thread cutting mechanism 14 are connected by an interlocking connection mechanism 50 and driven by a common pulse motor 51 via the interlocking connection mechanism 50, the structure is simplified. And the production cost can be reduced. The thread cutting member 30 can be switched to the retracted position in a state where the work cloth 1 is pressed by the work presser 22 of the work press lifting mechanism 12, so that the work cloth 1 is fed to a position corresponding to the cloth cutting cutter 48. The button hole 2 can be reliably formed.

【００８２】尚、実施形態以外の種々の穴かがりミシン
に本案を適用することが可能であるし、前記説明した以
外に、本発明の趣旨を逸脱しない範囲で、種々の変更を
付加した形態で実施することも可能である。例えば、連
動連結機構を省略し、上糸切断機構を専用のアクチュエ
ータにより駆動するようにしてもよい。It is to be noted that the present invention can be applied to various overlock sewing machines other than the above-described embodiment, and that various modifications other than those described above can be made without departing from the spirit of the present invention. It is also possible to carry out. For example, the interlocking connection mechanism may be omitted, and the upper thread cutting mechanism may be driven by a dedicated actuator.

【００８３】[0083]

【発明の効果】 請求項１の穴かがりミシンによれば、
布に次の穴かがり縫目の縫製前にボタン穴形成機構によ
りボタン穴を形成する為に、上糸切断機構の糸切り部材
が上糸を保持して退避位置に切り換わるので、ボタン穴
形成機構の下降する布切断用カッターが糸切り部材と干
渉することなく布に落ちてボタン穴を形成することがで
きる。糸切り部材で上糸を保持した状態で、ボタン穴を
形成できるため、布切断用カッターで上糸を切断した
り、上糸が縫針から抜けたりする等の虞もなく、その後
行われる穴かがり縫目の縫製に支障を来さない。According to the holing machine according to the first aspect,
In order to form a button hole by the button hole forming mechanism before sewing the next hole stitch on the cloth, the thread cutting member of the upper thread cutting mechanism switches to the retracted position while holding the upper thread. The descending cloth cutting cutter of the mechanism can drop on the cloth without interfering with the thread cutting member to form a button hole. Since the button hole can be formed while the upper thread is held by the thread cutting member, there is no fear that the upper thread is cut by the cloth cutting cutter or the upper thread comes off from the sewing needle, and the subsequent boring is performed. Does not hinder sewing of seams.

【００８４】請求項２の穴かがりミシンによれば、布押
え昇降機構と上糸切断機構とを連動連結機構により連結
し、その連動連結機構を介して共通のアクチュエータで
駆動するため、構造を簡単化し製作コストの低減を図る
ことが可能となる。布押え昇降機構の布押えにより布を
押えた状態で、糸切り部材を退避位置に切り換えること
ができるため、布を布切断用カッターに対応する位置に
布送りして位置決めすることもでき、ボタン穴を確実に
形成することができる。According to the second aspect of the present invention, the presser foot lifting / lowering mechanism and the upper thread cutting mechanism are connected by the interlocking connection mechanism, and are driven by the common actuator via the interlocking connection mechanism. And the production cost can be reduced. Since the thread cutting member can be switched to the retracted position while the cloth is held down by the cloth presser of the cloth presser elevating mechanism, the cloth can be fed to the position corresponding to the cloth cutting cutter and positioned. The hole can be formed reliably.

【００８５】請求項３の穴かがりミシンによれば、上糸
切断機構により穴かがり縫目の縫製中に糸切り部材を待
機させる縫製中位置に切換えることができるため、糸切
り部材と昇降する縫針とを干渉させずに、穴かがり縫目
の縫製を行うことができる。According to the third aspect of the present invention, since the thread cutting member can be switched to the sewing position where the thread cutting member is on standby during the sewing of the hole sewing operation by the upper thread cutting mechanism, the thread cutting member and the sewing needle ascending and descending. The sewing of the buttonhole stitch can be performed without interfering with the above.

【００８６】請求項４の穴かがりミシンによれば、刃開
閉機構により、糸切り部材の１対の開いた刃が切断位置
で閉じて上糸を確実に切断して保持でき、１対の閉じた
刃が縫製開始位置又は縫製中位置で開いて上糸を確実に
開放でき、余分な上糸を穴かがり縫目の内側に綺麗に縫
い込むことができるため品質が向上する。According to the fourth aspect of the present invention, the pair of open blades of the thread cutting member can be closed at the cutting position and the upper thread can be reliably cut and held by the blade opening / closing mechanism. The blade can be opened at the sewing start position or the sewing position to release the upper thread without fail, and the excess upper thread can be neatly sewn into the inside of the buttonhole stitch to improve the quality.

【００８７】請求項５の穴かがりミシンによれば、糸切
り連結部材の鉛直軸心回りの回動と布送り方向への移動
を介して、糸切り部材を、切断位置、縫製開始位置、退
避位置、縫製中位置に亙って切換えることができる。According to the fifth aspect of the present invention, the thread cutting member can be moved to the cutting position, the sewing start position, the retreating position through the rotation of the thread cutting connecting member about the vertical axis and the movement in the cloth feeding direction. The position and the position during sewing can be switched.

【００８８】請求項６の穴かがりミシンによれば、第１
駆動系により、連動連結部材の駆動力を糸切り連結部材
に伝達して、糸切り連結部材を布送り方向へ確実に駆動
することができる。According to the buttonhole sewing machine of the sixth aspect, the first
By the drive system, the driving force of the interlocking connection member is transmitted to the thread cutting connection member, and the thread cutting connection member can be reliably driven in the cloth feeding direction.

【００８９】請求項７の穴かがりミシンによれば、第１
係合部と第１被係合部が係合した状態で糸切り部材を縫
製開始位置に保持し、第１係合部と第１被係合部が係合
解除した状態で、付勢部材により糸切り部材を退避位置
又は縫製中位置に切換えることができる。According to the buttonhole sewing machine of the seventh aspect, the first
The thread cutting member is held at the sewing start position in a state where the engaging portion and the first engaged portion are engaged, and a biasing member is held in a state where the first engaging portion and the first engaged portion are released from engagement. Thereby, the thread cutting member can be switched to the retracted position or the sewing position.

【００９０】請求項８の穴かがりミシンによれば、穴か
がり縫目の縫製開始直後、穴かがり縫目の縫製開始直
後、布送り方向へ移動する送り腕の押動部が糸切り連結
部材の第１係合部を押動し、第１係合部と第１被係合部
との係合を解除して糸切り部材を縫製中位置に切換える
ことができる。According to the eighth aspect of the present invention, immediately after the sewing of the buttonhole sewing is started, and immediately after the sewing of the buttonhole sewing, the pushing portion of the feed arm which moves in the cloth feeding direction is provided with the thread cutting connection member. The first engagement portion is pushed to release the engagement between the first engagement portion and the first engaged portion, and the thread cutting member can be switched to the sewing position.

【００９１】請求項９の穴かがりミシンによれば、第２
係合部と第２被係合部とを係合させて、糸切り部材を退
避位置と切断位置と縫製中位置に確実に切換えることが
できる。According to the holing machine of the ninth aspect, the second
By engaging the engaging portion and the second engaged portion, the thread cutting member can be reliably switched to the retracted position, the cutting position, and the sewing position.

【００９２】請求項１０の穴かがりミシンによれば、第
１係合部に対して第２被係合部を布送り方向へ移動さ
せ、第２係合部の段部と第２被係合部とを係合させて、
糸切り連結部材を切断位置に移動させ切換えることがで
きる。[0092] According to the tenth aspect of the present invention, the second engaged portion is moved in the cloth feeding direction with respect to the first engaging portion, and the stepped portion of the second engaging portion is engaged with the second engaged portion. Engage with the part,
The thread cutting connection member can be moved to the cutting position and switched.

【００９３】請求項１１の穴かがりミシンによれば、第
２駆動系により第２被係合部を布送り方向へ駆動し、第
２係合部に対する第２被係合部の係合位置を変化させて
段部にも係合させることができる。According to the hole sewing machine of the eleventh aspect, the second engaged portion is driven in the cloth feeding direction by the second drive system, and the engaging position of the second engaged portion with the second engaging portion is determined. It can be varied to engage the step.

【００９４】請求項１２の穴かがりミシンによれば、ア
クチュエータとしてのがパルスモータでを駆動制御し、
その駆動量に応じて、布押え昇降機構と上糸切断機構を
適切なタイミングで駆動し、また、上糸切断機構におい
て、糸切り部材の切断位置、退避位置、縫製開始位置、
縫製中位置への切換えを確実に行うことができる。According to the holing machine of claim 12, the actuator is driven and controlled by a pulse motor.
According to the driving amount, the presser foot lifting and lowering mechanism and the upper thread cutting mechanism are driven at appropriate timing, and in the upper thread cutting mechanism, the cutting position, the retreat position, the sewing start position,
Switching to the sewing position can be performed reliably.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の実施形態に係る穴かがりミシンの側面
からの透視図である。FIG. 1 is a perspective view from the side of a boring machine according to an embodiment of the present invention.

【図２】穴かがりミシンの平面からの透視図である。FIG. 2 is a perspective view from the plane of the holing machine.

【図３】穴かがりミシンの正面からの透視図である。FIG. 3 is a perspective view from the front of the holing machine.

【図４】加工布に形成された穴かがり縫目とボタン穴の
平面図である。FIG. 4 is a plan view of a buttonhole and a buttonhole formed on a work cloth.

【図５】穴かがりミシンの上糸切断機構等を含む要部平
面図である。FIG. 5 is a plan view of a main part including a needle thread cutting mechanism and the like of the holing machine;

【図６】穴かがりミシンの上糸切断機構等を含む要部側
面図である。FIG. 6 is a side view of a main part including a needle thread cutting mechanism and the like of the holing machine;

【図７】糸切り部材と布押え等を含む要部平面図であ
る。FIG. 7 is a plan view of a main part including a thread cutting member and a cloth presser;

【図８】糸切り部材と布押え等を含む要部側面図であ
る。FIG. 8 is a side view of a main part including a thread cutting member, a cloth presser, and the like.

【図９】糸切り部材と布押え等を含む要部正面図であ
る。FIG. 9 is a front view of a main part including a thread cutting member and a cloth presser;

【図１０】連動連結機構の一部とパルスモータの側面図
である。FIG. 10 is a side view of a part of an interlocking connection mechanism and a pulse motor.

【図１１】穴かがりミシンの制御系のブロック図であ
る。FIG. 11 is a block diagram of a control system of the holing machine.

【図１２】糸切り部材が上糸を保持した状態で退避位置
に位置する糸切り機構等の平面図である。FIG. 12 is a plan view of a thread cutting mechanism and the like located at a retracted position with the thread cutting member holding the upper thread.

【図１３】糸切り部材が切断位置に位置する糸切り機構
等の平面図である。FIG. 13 is a plan view of a thread cutting mechanism and the like in which a thread cutting member is located at a cutting position.

【図１４】糸切り部材が縫製開始位置に位置する糸切り
機構等の平面図である。FIG. 14 is a plan view of a thread cutting mechanism and the like in which a thread cutting member is located at a sewing start position.

【図１５】糸切り部材が縫製中位置に位置する糸切り機
構等の平面図である。FIG. 15 is a plan view of a thread cutting mechanism and the like in which a thread cutting member is located at a position during sewing.

【図１６】糸切り部材が上糸を開放した状態で退避位置
に位置する糸切り機構等の平面図である。FIG. 16 is a plan view of a thread cutting mechanism and the like located at a retracted position with the thread cutting member releasing the upper thread.

【符号の説明】[Explanation of symbols]

Ｍ 穴かがりミシン １ 加工布 ２ 穴かがり縫目 ３ ボタン穴 １０ 縫目形成機構 １１ 布送り機構 １２ 布押え昇降機構 １３ 上糸切断機構 １４ 下糸切断機構 １５ ボタン穴形成機構 １７ 縫針 ２２ 布押え ２３ 送り腕 ３０ 糸切り部材 ３０ａ 固定刃 ３０ｂ 可動刃 ３１ 糸切り連結部材 ３１ｄ 第２係合部 ３１ｅ 段部 ３３ｃ 第１係合部 ３８ 引っ張りコイルバネ ４０ 刃開閉機構 ４５ 第１被係合部 ４６ 第２被係合部 ４８ 布切断用カッター ５０ 連動連結機構 ５１ パルスモータ ５６ 連動板 ５７ 第１駆動系 ５８ 第２駆動系 ７５ 押動部 M Overhole sewing machine 1 Work cloth 2 Overhole stitch 3 Button hole 10 Stitch formation mechanism 11 Cloth feed mechanism 12 Fabric presser elevating mechanism 13 Upper thread cutting mechanism 14 Lower thread cutting mechanism 15 Buttonhole forming mechanism 17 Sewing needle 22 Fabric presser 23 Feed arm 30 Thread cutting member 30a Fixed blade 30b Movable blade 31 Thread cutting connecting member 31d Second engaging portion 31e Step portion 33c First engaging portion 38 Tension coil spring 40 Blade opening / closing mechanism 45 First engaged portion 46 Second covered Engaging part 48 Cutter for cloth cutting 50 Interlocking coupling mechanism 51 Pulse motor 56 Interlocking plate 57 First drive system 58 Second drive system 75 Pushing part

───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3B150 AA24 BA06 CD07 CE01 CE03 CE05 CE07 CE27 EA12 FH02 FH03 FH06 FH09 FH14 FH20 GF02 GF03 JA07 JA11 LA31 LA53 LA84 NA19 NA48 NA71 NB12 NB16 NC02 NC06 NC11 QA06  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B150 AA24 BA06 CD07 CE01 CE03 CE05 CE07 CE27 EA12 FH02 FH03 FH06 FH09 FH14 FH20 GF02 GF03 JA07 JA11 LA31 LA53 LA84 NA19 NA48 NA71 NB12 NB16 NC02 NC06 NC11 QA06

Claims (12)

【特許請求の範囲】[Claims] 【請求項１】 上糸切断機構とボタン穴形成機構とを備
えた穴かがりミシンにおいて、 前記上糸切断機構を駆動するアクチュエータを備え、 前記上糸切断機構は、穴かがり縫目の形成後に縫針近傍
の切断位置で上糸を切断して保持する糸切り部材を有す
ると共に、この糸切り部材を前記切断位置とボタン穴形
成機構の布切断用カッターの移動軌跡付近の縫製開始位
置とその移動軌跡から退避した退避位置とに亙って切換
え可能に構成され、 布に次の穴かがり縫目の縫製前にボタン穴形成機構によ
りボタン穴を形成する為に、上糸切断機構の糸切り部材
が上糸を保持して退避位置に切り換わるように構成した
ことを特徴とする穴かがりミシン。1. An overlock sewing machine having an upper thread cutting mechanism and a buttonhole forming mechanism, comprising: an actuator for driving the upper thread cutting mechanism, wherein the upper thread cutting mechanism has a sewing needle after forming the overlock stitch. A thread cutting member for cutting and holding the upper thread at a nearby cutting position, and a sewing start position near the cutting position and a movement locus of the cloth cutting cutter of the buttonhole forming mechanism, and a movement locus thereof; In order to form a button hole by a button hole forming mechanism before sewing the next buttonhole stitch on the cloth, a thread cutting member of an upper thread cutting mechanism is provided. A boring machine characterized in that it is configured to switch to a retracted position while holding an upper thread. 【請求項２】 布押え昇降機構と、この布押え昇降機構
と上糸切断機構を連動連結する連動連結機構を備え、前
記アクチュエータにより連動連結機構を介して布押え昇
降機構と上糸切断機構を駆動し、布押え昇降機構の布押
えにより布を押えた状態で、上糸切断機構の糸切り部材
を退避位置に切り換え可能に構成したことを特徴とする
請求項１に記載の穴かがりミシン。2. A presser foot lifting / lowering mechanism, and an interlocking connection mechanism interlockingly connecting the presser foot lifting / lowering mechanism and the upper thread cutting mechanism, wherein the actuator controls the presser foot lifting / lowering mechanism and the upper thread cutting mechanism via the interlocking connection mechanism. The hole sewing machine according to claim 1, wherein the thread cutting member of the upper thread cutting mechanism can be switched to a retracted position when the cloth is pressed by the cloth presser of the cloth presser elevating mechanism. 【請求項３】 前記上糸切断機構は、穴かがり縫目の縫
製中に糸切り部材を待機させる縫製中位置に切換え可能
に構成されたことを特徴とする請求項２に記載の穴かが
りミシン。3. The machine according to claim 2, wherein the upper thread cutting mechanism is configured to be switchable to a sewing position where the thread cutting member is on standby during sewing of the buttonhole stitch. . 【請求項４】 前記糸切り部材は１対の刃を有し、上糸
切断機構は、１対の開いた刃を切断位置で閉じ、１対の
閉じた刃を縫製開始位置又は縫製中位置で開ける刃開閉
機構を含むことを特徴とする請求項３に記載の穴かがり
ミシン。4. The thread cutting member has a pair of blades, and the upper thread cutting mechanism closes the pair of open blades at the cutting position and closes the pair of closed blades at the sewing start position or the sewing position. 4. The hole hog sewing machine according to claim 3, further comprising a blade opening / closing mechanism that can be opened. 【請求項５】 前記上糸切断機構は、先端部に糸切り部
材を連結すると共に基端部が鉛直軸心回りに回動可能に
枢支され且つ布送り方向へ移動可能な糸切り連結部材を
有することを特徴とする請求項４に記載の穴かがりミシ
ン。5. The thread cutting connection member, wherein a thread cutting member is connected to a distal end portion and a base end portion of the upper thread cutting mechanism is rotatably supported around a vertical axis and is movable in a cloth feeding direction. The hole hog sewing machine according to claim 4, comprising: 【請求項６】 前記連動連結機構は、前記アクチュエー
タにより駆動される連動連結部材と、この連動連結部材
の駆動力を糸切り連結部材に伝達して糸切り連結部材を
布送り方向へ駆動する第１駆動系を含むことを特徴とす
る請求項５に記載の穴かがりミシン。6. The interlocking connection mechanism includes an interlocking connection member driven by the actuator, and a driving force of the interlocking connection member transmitted to the thread cutting connection member to drive the thread cutting connection member in a cloth feeding direction. The sewing machine according to claim 5, wherein the sewing machine includes one drive system. 【請求項７】 前記糸切り部材を退避位置又は縫製中位
置側へ付勢する付勢部材と、糸切り連結部材に設けられ
た第１係合部と、その第１係合部と係合可能な第１被係
合部とを備え、これら第１係合部と第１被係合部が係合
状態で糸切り部材を縫製開始位置に保持し非係合状態で
糸切り部材の退避位置又は縫製中位置への切換えを許容
することを特徴とする請求項６に記載の穴かがりミシ
ン。7. An urging member for urging the thread cutting member to a retracted position or a position during sewing, a first engaging portion provided on the thread cutting connecting member, and engaging with the first engaging portion. A first engaged portion capable of holding the thread cutting member at the sewing start position when the first engaging portion and the first engaged portion are engaged, and retracting the thread cutting member when the first engaged portion is disengaged. 7. The sewing machine according to claim 6, wherein switching to a position or a position during sewing is permitted. 【請求項８】 前記布押えに連結されて布と一体的に布
送り方向へ移動する送り腕に、糸切り連結部材の第１係
合部を押動可能な押動部を設け、穴かがり縫目の縫製開
始直後に、押動部が縫製開始位置に位置する糸切り連結
部材の第１係合部を押動して第１係合部と第１被係合部
との係合を解除することを特徴とする請求項７に記載の
穴かがりミシン。8. A feed arm which is connected to the cloth presser and moves integrally with the cloth in the cloth feed direction is provided with a pressing portion which can press the first engagement portion of the thread cutting connection member, and forms a hole. Immediately after the sewing start of the stitch, the pushing portion pushes the first engaging portion of the thread cutting connection member located at the sewing start position to engage the first engaging portion with the first engaged portion. The holing machine according to claim 7, wherein the sewing machine is released. 【請求項９】 前記糸切り連結部材に設けられた第２係
合部と、その第２係合部と係合可能な第２被係合部とを
備え、これら第２係合部と第２被係合部が係合した状態
で糸切り部材を退避位置と切断位置と縫製中位置の何れ
か１つの位置に保持することを特徴とする請求項８に記
載の穴かがりミシン。And a second engagement portion provided on the thread cutting connection member, and a second engaged portion engageable with the second engagement portion. 9. The machine according to claim 8, wherein the thread trimming member is held at any one of the retracted position, the cutting position, and the sewing position in a state where the two engaged portions are engaged. 【請求項１０】 前記第２係合部は段部を有し、この段
部と第２被係合部が係合すると、糸切り連結部材が切断
位置に切換わることを特徴とする請求項９に記載の穴か
がりミシン。10. The thread cutting connecting member switches to a cutting position when the second engaging portion has a step, and when the step and the second engaged portion engage with each other. 9. The sewing machine according to 9 above. 【請求項１１】 前記連動連結機構は、前記連動連結部
材の駆動力を第２被係合部に伝達して第２被係合部を布
送り方向へ駆動する第２駆動系を含むことを特徴とする
請求項１０に記載の穴かがりミシン。11. The interlocking connection mechanism includes a second drive system that transmits a driving force of the interlocking connection member to a second engaged portion to drive the second engaged portion in the cloth feeding direction. The hole hog sewing machine according to claim 10, characterized in that: 【請求項１２】 前記アクチュエータがパルスモータで
あることを特徴とする請求項１〜９の何れかに記載の穴
かがりミシン。12. The machine according to claim 1, wherein the actuator is a pulse motor.
JP2000219095A 2000-07-19 2000-07-19 Hole sewing machine Expired - Fee Related JP4340942B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000219095A JP4340942B2 (en) 2000-07-19 2000-07-19 Hole sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000219095A JP4340942B2 (en) 2000-07-19 2000-07-19 Hole sewing machine

Publications (2)

Publication Number Publication Date
JP2002035459A true JP2002035459A (en) 2002-02-05
JP4340942B2 JP4340942B2 (en) 2009-10-07

Family

ID=18713938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000219095A Expired - Fee Related JP4340942B2 (en) 2000-07-19 2000-07-19 Hole sewing machine

Country Status (1)

Country Link
JP (1) JP4340942B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088096A (en) * 2014-06-27 2014-10-08 台州拓卡奔马机电科技有限公司 Driving device for thread knotting and presser-foot-lifted thread trimming and straight buttonhole machine
CN104099726A (en) * 2014-06-24 2014-10-15 台州拓卡奔马机电科技有限公司 Driving mechanism for thread sewing and presser foot lifting thread-scissoring and buttonholing machine
CN109505071A (en) * 2019-01-28 2019-03-22 浙江坤腾智能科技股份有限公司 A kind of knitting machine and its processing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104099726A (en) * 2014-06-24 2014-10-15 台州拓卡奔马机电科技有限公司 Driving mechanism for thread sewing and presser foot lifting thread-scissoring and buttonholing machine
CN104099726B (en) * 2014-06-24 2022-07-05 拓卡奔马机电科技有限公司 Driving mechanism for routing, lifting presser foot and trimming and buttonhole sewing machine
CN104088096A (en) * 2014-06-27 2014-10-08 台州拓卡奔马机电科技有限公司 Driving device for thread knotting and presser-foot-lifted thread trimming and straight buttonhole machine
CN104088096B (en) * 2014-06-27 2022-06-24 拓卡奔马机电科技有限公司 Driving device for routing, lifting presser foot and trimming and flat buttonhole sewing machine
CN109505071A (en) * 2019-01-28 2019-03-22 浙江坤腾智能科技股份有限公司 A kind of knitting machine and its processing method

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