JP5160356B2 - sewing machine - Google Patents

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JP5160356B2
JP5160356B2 JP2008236115A JP2008236115A JP5160356B2 JP 5160356 B2 JP5160356 B2 JP 5160356B2 JP 2008236115 A JP2008236115 A JP 2008236115A JP 2008236115 A JP2008236115 A JP 2008236115A JP 5160356 B2 JP5160356 B2 JP 5160356B2
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feed
release
sewing machine
needle plate
stopper
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JP2010068837A (en
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隆裕 比嘉
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Juki Corp
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Description

本発明は、送り歯を備えるミシンに関する。   The present invention relates to a sewing machine having a feed dog.

針板の上面から出没するとともに、布送り方向に移動することで針板上の布を送る送り歯を備えるミシンが知られている。
送り歯は、送り機構にねじ等により着脱自在に固定されており、送り機構の動作により布送り動作を行う(例えば、特許文献1参照。)。
複数の針により縫製を行うミシンにおいては、縫製対象や縫製仕様によって、縫い幅が異なるため、縫い幅を変える際には針留を交換する。また、針幅を変化させると、その針幅に対応する針穴を有する針板及び送り歯に交換する必要が生じる。
特開2006−192067号公報
2. Description of the Related Art A sewing machine is known that includes a feed dog that appears and disappears from the upper surface of a needle plate and feeds the cloth on the needle plate by moving in the cloth feed direction.
The feed dog is detachably fixed to the feed mechanism with a screw or the like, and performs a cloth feed operation by the operation of the feed mechanism (see, for example, Patent Document 1).
In a sewing machine that performs sewing with a plurality of needles, the sewing width varies depending on the sewing object and the sewing specifications. Therefore, when changing the sewing width, the needle holder is replaced. When the needle width is changed, it is necessary to replace the needle plate and the feed dog having a needle hole corresponding to the needle width.
JP 2006-192067 A

ところで、送り歯は、針板の下方で送り機構に固定されているため、送り歯の交換の際には針板をその都度取り外す必要がある。送り歯は針板に形成された孔から上方に出没するが、布を巻き込まないように、針板の孔と送り歯との隙間は非常に小さくなるように設計されている。よって、送り歯の取り付けが正確に行われないと、送り歯の動作時に針板に接触してしまう。
そのため、送り歯を交換する際は、まず、針板を外し、送り歯を送り機構に仮止めし、針板を取り付ける。そして、送り歯と針板との隙間や針落ち位置の両方を確認しながら送り歯の位置を決め、送り歯を動かさないように針板を取り外す。そして、送り歯を本締めして送り歯を固定し、針板を再度取り付けて、針板と送り歯との位置関係を再度確認する。ここで、本締めの際に送り歯の位置ずれがあれば、再度針板を取り外して送り歯の調節を行う。
従って、このような送り歯の交換作業は非常に煩雑であり、手間がかかるため、作業効率が低下するという問題があった。
これらの問題を解決するために、針板に一つの工具孔を開けて、送り歯締結部材を操作可能にすることは容易に考えられる。しかし、送り歯締結部材は、布送り方向に沿って複数配置されている。また、その配置間隔は、規制機構により規制される縫製時の最大送りピッチより大きい。このため、一つの工具孔では、複数の送り歯締結部材の操作ができないという問題があった。
By the way, since the feed dog is fixed to the feed mechanism below the needle plate, it is necessary to remove the needle plate each time the feed dog is replaced. The feed dog protrudes upwards and downwards from a hole formed in the needle plate, but the gap between the needle plate hole and the feed dog is designed to be very small so as not to entrain the cloth. Therefore, if the feed dog is not correctly attached, it will come into contact with the needle plate during operation of the feed dog.
Therefore, when replacing the feed dog, first, the needle plate is removed, the feed dog is temporarily fixed to the feed mechanism, and the needle plate is attached. Then, the position of the feed dog is determined while confirming both the gap between the feed dog and the needle plate and the needle drop position, and the needle plate is removed so as not to move the feed dog. Then, the feed dog is finally tightened to fix the feed dog, the needle plate is attached again, and the positional relationship between the needle plate and the feed dog is confirmed again. Here, if the feed dog is misaligned during the final tightening, the needle plate is removed again to adjust the feed dog.
Therefore, there is a problem that the work efficiency is lowered because such a feed dog replacement operation is very complicated and time-consuming.
In order to solve these problems, it is easily considered that a single tool hole is formed in the needle plate to make the feed dog fastening member operable. However, a plurality of feed dog fastening members are arranged along the cloth feed direction. Further, the arrangement interval is larger than the maximum feed pitch at the time of sewing regulated by the regulation mechanism. For this reason, there was a problem that a plurality of feed dog fastening members could not be operated with one tool hole.

そこで、本発明は、上記課題を解決するためになされたものであり、送り歯締結部材の配置や縫製時の最大送りピッチを変更しないで、送り歯の交換作業を容易にすることができるミシンを提供することを目的とする。   Accordingly, the present invention has been made to solve the above-described problems, and a sewing machine capable of facilitating the feed dog replacement operation without changing the arrangement of the feed dog fastening members and the maximum feed pitch during sewing. The purpose is to provide.

請求項1に記載の発明は、
被縫製物が載置される針板(70)と、
前記針板の上面から出没し、針板上の被縫製物を送る送り歯(20)と、
前記送り歯に送り動作をさせる送り機構(30)と、
前記針板の下方で前記送り歯を前記送り機構に着脱自在に締結すると共に、布送り方向に沿って複数配置される締結部材(81,82)と、
操作量に応じて前記送り機構による送り歯の送り量を調節する送り調節部材(54)と、
前記送り調節部材の縫製時の最大送りピッチを規制する規制機構(90)と、を備えるミシン(1)において、
前記規制機構による前記送り調節部材の操作の規制を解除する解除機構(100)を有し、
前記針板に、前記締結部材を操作可能な工具を通す一つの工具孔(72)を形成し、
前記解除機構により前記送り調節部材の規制を解除することにより、前記複数の締結部材が個別に前記工具孔に対応した位置に移動可能であることを特徴とする。
The invention described in claim 1
A needle plate (70) on which the workpiece is placed;
A feed dog (20) that protrudes from the upper surface of the needle plate and feeds the workpiece on the needle plate;
A feed mechanism (30) for causing the feed dog to perform a feed operation;
Fastening members (81, 82) that are detachably fastened to the feed mechanism below the needle plate and that are arranged along the cloth feed direction;
A feed adjusting member (54) for adjusting the feed amount of the feed dog by the feed mechanism according to the operation amount;
In a sewing machine (1) comprising a regulation mechanism (90) for regulating the maximum feed pitch at the time of sewing of the feed adjustment member,
A release mechanism (100) for releasing the restriction of the operation of the feed adjusting member by the restriction mechanism;
Forming one tool hole (72) through which the tool capable of operating the fastening member is formed in the needle plate,
By releasing the restriction of the feed adjustment member by the release mechanism, the plurality of fastening members can be individually moved to positions corresponding to the tool holes.

請求項2に記載の発明は、請求項1に記載のミシンにおいて、
前記規制機構は、
前記送り調節部材に進退自在なストッパ部材(92)と、
前記送り調節部材に向けて、前記ストッパ部材を付勢する付勢部材(91)と、
前記送り調節部材に設けられ、前記送り調節部材を所定量操作した際に前記ストッパ部材に当接する当接部材(93)と、
を備えることを特徴とする。
The invention according to claim 2 is the sewing machine according to claim 1,
The regulation mechanism is
A stopper member (92) which is movable forward and backward with respect to the feed adjusting member;
An urging member (91) for urging the stopper member toward the feed adjusting member;
An abutting member (93) provided on the feed adjusting member and abutting on the stopper member when the feed adjusting member is operated by a predetermined amount;
It is characterized by providing.

請求項3に記載の発明は、請求項2に記載のミシンにおいて、
前記解除機構は、操作により前記ストッパ部材と前記当接部材との間に入り込んで前記ストッパ部材を前記付勢部材の付勢力に抗して前記当接部材の移動経路上から退避させる解除レバー(101)を有することを特徴とする。
The invention according to claim 3 is the sewing machine according to claim 2,
The release mechanism is a release lever that enters between the stopper member and the contact member by operation and retracts the stopper member from the moving path of the contact member against the urging force of the urging member. 101).

請求項4に記載の発明は、請求項2に記載のミシンにおいて、
前記解除機構は、前記送り調節部材に挿通されると共に、前記ストッパ部材に当接する位置で前記ストッパ部材の付勢方向に沿って移動自在とされた解除ピン(111)を有し、
前記解除ピンは、前記ストッパ部材との当接部分が前記当接部材の先端よりも前記送り調節部材から突出するように移動可能であることを特徴とする。
The invention according to claim 4 is the sewing machine according to claim 2,
The release mechanism has a release pin (111) that is inserted through the feed adjusting member and is movable along the biasing direction of the stopper member at a position that contacts the stopper member.
The release pin is movable so that a contact portion with the stopper member protrudes from the feed adjustment member rather than a tip end of the contact member.

請求項5に記載の発明は、請求項1〜4のいずれか一項に記載のミシンにおいて、
工具の未使用時に前記一つの工具孔を埋める蓋体(73)を当該工具孔に挿脱自在に設けたことを特徴とする。
Invention of Claim 5 is a sewing machine as described in any one of Claims 1-4,
A lid (73) for filling the one tool hole when the tool is not used is provided so as to be freely inserted into and removed from the tool hole.

請求項1に記載の発明によれば、解除機構により送り調節部材の規制を解除することにより、複数の締結部材が個別に一つの工具孔に対応した位置に移動可能となる。したがって、締結部材の配置や縫製時の最大送りピッチを変更しないで、送り歯の交換作業を容易にすることができる。   According to the first aspect of the present invention, by releasing the restriction of the feed adjusting member by the releasing mechanism, the plurality of fastening members can be individually moved to positions corresponding to one tool hole. Therefore, it is possible to facilitate the feed dog replacement operation without changing the arrangement of the fastening members and the maximum feed pitch at the time of sewing.

請求項2に記載の発明によれば、ストッパ部材、付勢部材、当接部材を備える簡易な構成で規制機構を構成することができる。   According to invention of Claim 2, a control mechanism can be comprised by a simple structure provided with a stopper member, a biasing member, and a contact member.

請求項3に記載の発明によれば、解除レバーを操作するだけでストッパ部材を当接部材の移動経路上から退避させることができる。このような解除機構とすることで、送り調節部材の最大送りピッチの制限を簡単に解除することができる。   According to the third aspect of the present invention, the stopper member can be retracted from the moving path of the contact member only by operating the release lever. By setting it as such a cancellation | release mechanism, the restriction | limiting of the maximum feed pitch of a feed adjustment member can be cancelled | released easily.

請求項4に記載の発明によれば、解除ピンは、ストッパ部材が当接部材に当接しない位置まで移動させるように操作することができる。このような解除機構とすることで、送り調節部材の最大送りピッチの制限を簡単に解除することができる。   According to the fourth aspect of the present invention, the release pin can be operated so as to move to a position where the stopper member does not contact the contact member. By setting it as such a cancellation | release mechanism, the restriction | limiting of the maximum feed pitch of a feed adjustment member can be cancelled | released easily.

請求項5に記載の発明によれば、工具の未使用時には、一つの工具孔に蓋体を嵌め込むことにより、被縫製物が工具孔に引っかかることがなくなる。   According to the fifth aspect of the present invention, when the tool is not used, the workpiece is not caught in the tool hole by fitting the lid into one tool hole.

以下、図面を参照して、本発明に係るミシンの最良の実施形態について詳細に説明する。
<ミシンの構成>
図1に示すように、ミシン1は、各々が針11,12を保持する二本の針棒13,14と、各針棒13,14を揺動させる揺動機構15と、ミシンモータ(図示略)により各針棒13,14を上下動させる図示しない上下動機構(図示略)と、各針11,12に通された上糸に個別に下糸を絡める一対の水平釜(図示略)と、一対の針11,12の下降時にそれぞれの針11,12が挿通される針穴20a,20bを有する送り歯20と、送り歯20に送り動作をさせる送り機構30と、送り機構30の送り動作量を調節する送り量調節機構50と、ミシンベッドの上面に設けられ、針11,12の下方であって、送り歯20の上方に設けられる針板70を備えている。
Hereinafter, the best embodiment of a sewing machine according to the present invention will be described in detail with reference to the drawings.
<Configuration of sewing machine>
As shown in FIG. 1, the sewing machine 1 includes two needle bars 13 and 14 each holding needles 11 and 12, a swing mechanism 15 that swings each needle bar 13 and 14, and a sewing machine motor (illustrated). (Not shown) a vertical movement mechanism (not shown) that moves the needle bars 13 and 14 up and down, and a pair of horizontal hooks (not shown) that individually entangle the lower thread with the upper thread passed through the needles 11 and 12. A feed dog 20 having needle holes 20a and 20b through which the needles 11 and 12 are inserted when the pair of needles 11 and 12 are lowered, a feed mechanism 30 that causes the feed dog 20 to perform a feed operation, and a feed mechanism 30 A feed amount adjusting mechanism 50 for adjusting a feed operation amount and a needle plate 70 provided on the upper surface of the sewing machine bed and below the needles 11 and 12 and above the feed dog 20 are provided.

(送り歯、針板)
図1、図2に示すように、送り歯20は、送り機構30に締結部材としての二つのねじ81,82によって締結され、固定されている。これらのねじ81,82は、針板70を外すだけで送り歯20の着脱ができるよう、工具との嵌合部(ねじ頭)が上方に向くように設けられている。また、ねじ81、82は、被縫製物を送る布送り方向に沿って、所定間隔離間されて配置されている。送り歯20は、上端に布を送るために鋸歯状に形成されている。ミシンベッドの送り歯20の上方には、針板70が設けられている。
針板70は、不図示のねじにより固定孔70aを介してミシンフレームに固定される。固定された針板70は、ミシンベッド上面と同一平面となり、被縫製物が載置される。
針板70は、送り歯20が上面から出没できるように送り孔71が形成されている。送り孔71は、可能な限り、送り歯20との隙間が小さくなるように形成されている。これは、送り歯20と送り孔71との間に布が引き込まれることを防止するためである。
針板70には、ねじ81,82の上方にねじ81,82を操作(締める及び緩める)するための工具(例えば、ドライバー)を通す一つの工具孔72が形成されている。この工具孔72は、針板70の強度の確保上、送り孔71から少し離れた位置に形成されている。工具孔72は、針板70に一つだけ形成されているが、送り歯20の送りピッチをねじ81,82のピッチよりも大きくすることにより、一つの工具孔72から二つのねじ81,82の操作を工具で行うことができる。
ねじ81,82の操作により送り歯20の着脱を行わないときには、工具孔72には、当該工具孔72を埋める蓋体73が挿入される。蓋体73は、上面が摩擦係数の小さいフッ素樹脂等の材料で形成されており、縫製時に蓋体73に布が引っかからないようになっている。蓋体73は、工具孔72に対して挿脱自在であるため、送り歯20の交換時には、蓋体73を取り外して工具孔72から工具を挿入することができる。
(Feed dog, needle plate)
As shown in FIGS. 1 and 2, the feed dog 20 is fastened and fixed to the feed mechanism 30 by two screws 81 and 82 as fastening members. These screws 81 and 82 are provided so that the fitting portion (screw head) with the tool faces upward so that the feed dog 20 can be attached and detached simply by removing the needle plate 70. Further, the screws 81 and 82 are disposed at a predetermined interval along the cloth feeding direction in which the workpiece is fed. The feed dog 20 is formed in a sawtooth shape to feed the cloth to the upper end. A needle plate 70 is provided above the feed dog 20 of the sewing machine bed.
The needle plate 70 is fixed to the sewing machine frame via a fixing hole 70a by a screw (not shown). The fixed throat plate 70 is flush with the upper surface of the sewing machine bed, and the workpiece is placed thereon.
The needle plate 70 is formed with a feed hole 71 so that the feed dog 20 can protrude from the upper surface. The feed hole 71 is formed so that the gap with the feed dog 20 is as small as possible. This is to prevent the cloth from being drawn between the feed dog 20 and the feed hole 71.
The needle plate 70 is formed with one tool hole 72 through which a tool (for example, a screwdriver) for operating (tightening and loosening) the screws 81, 82 is passed above the screws 81, 82. The tool hole 72 is formed at a position slightly away from the feed hole 71 in order to ensure the strength of the needle plate 70. Only one tool hole 72 is formed in the throat plate 70. By making the feed pitch of the feed dog 20 larger than the pitch of the screws 81 and 82, two screws 81 and 82 are formed from one tool hole 72. Can be performed with a tool.
When the feed dog 20 is not attached / detached by operating the screws 81, 82, a lid 73 that fills the tool hole 72 is inserted into the tool hole 72. The lid 73 is formed of a material such as a fluororesin having a small friction coefficient on the upper surface so that the cloth is not caught on the lid 73 during sewing. Since the lid 73 is detachable with respect to the tool hole 72, when replacing the feed dog 20, the lid 73 can be removed and a tool can be inserted from the tool hole 72.

(送り機構)
送り機構30は、送り歯20を保持する送り台32と、下軸16に固定装備された上下送り用偏心カム33と、上下送り用偏心カム33を一端部に擁すると共に他端部で送り台32に連結された上下送り用偏心ロッド34と、下軸16に固定装備された水平送り用偏心カム35と、水平送り用偏心カム35を一端部に擁する水平送り用偏心ロッド36と、送り台腕37を介して送り台32に水平方向の往復動作を付与する水平送り軸38と、水平送り軸38に固定軸支された水平送り腕39と、水平送り腕39の回動端部と水平送り用偏心ロッド36の他端部とを連結する連結リンク40とを備えている。
(Feeding mechanism)
The feed mechanism 30 has a feed base 32 for holding the feed dog 20, a vertical feed eccentric cam 33 fixedly mounted on the lower shaft 16, and a vertical feed eccentric cam 33 at one end and a feed base at the other end. 32, an eccentric rod 34 for vertical feed, a horizontal feed eccentric cam 35 fixed to the lower shaft 16, a horizontal feed eccentric rod 36 having a horizontal feed eccentric cam 35 at one end, and a feed base A horizontal feed shaft 38 that imparts a reciprocating motion in the horizontal direction to the feed base 32 via the arm 37, a horizontal feed arm 39 that is fixedly supported by the horizontal feed shaft 38, a rotating end portion of the horizontal feed arm 39, and the horizontal A connecting link 40 that connects the other end of the feeding eccentric rod 36 is provided.

上記構成により、下軸16が全回転を行うと、上下送り用偏心カム33により上下送り用偏心ロッド34が往復動作を行い、送り台32に下軸16と同じ周期の上下動が付与される。
また、水平送り用偏心カム35により水平送り用偏心ロッド36が往復動作を行い、連結リンク40及び水平送り腕39を介して水平送り軸38に往復回動動作を付与する。このとき、水平送り用偏心カム35、水平送り用偏心ロッド36、連結リンク40、水平送り腕39及び水平送り軸38は、擬似的な四節リンク機構を構成し、後述する送り調節機構50により四節の内の一節の移動軌跡が規制された状態とされることで、水平送り用偏心ロッド36から水平送り腕39への動作伝達が行われ、水平送り軸38が所定の角度範囲で往復回動を行う構造となっている。
そして、水平送り軸38が所定の角度範囲で往復回動を行うことにより、送り台腕37を介して送り台32に下軸16と同じ周期の水平往復動が付与される。
このように、送り台32には、同じ周期の上下動と水平往復動作が付与されるので、それらの位相を適切に調節することで長円運動をさせることができる。また、送り歯20は長円運動の上部区間においてミシンベッドの上面よりも歯先が上方に突出するように配置されているので、上部区間の移動においてミシンベッド上面の被縫製物を送ることができる。また、送り調節機構50により水平送り量の往復幅を調節するとそれに応じて送り量を調節することができる。
With the above configuration, when the lower shaft 16 makes a full rotation, the vertical feeding eccentric rod 34 reciprocates by the vertical feeding eccentric cam 33 and the vertical movement of the same cycle as the lower shaft 16 is applied to the feed base 32. .
In addition, the horizontal feed eccentric rod 36 reciprocates by the horizontal feed eccentric cam 35, and a reciprocating rotation operation is given to the horizontal feed shaft 38 via the connecting link 40 and the horizontal feed arm 39. At this time, the horizontal feed eccentric cam 35, the horizontal feed eccentric rod 36, the connecting link 40, the horizontal feed arm 39, and the horizontal feed shaft 38 constitute a pseudo four-bar linkage mechanism, which is controlled by a feed adjustment mechanism 50 described later. By setting the movement trajectory of one of the four sections to be regulated, motion transmission from the horizontal feed eccentric rod 36 to the horizontal feed arm 39 is performed, and the horizontal feed shaft 38 reciprocates within a predetermined angular range. It is structured to rotate.
The horizontal feed shaft 38 reciprocates within a predetermined angle range, whereby a horizontal reciprocating motion having the same cycle as that of the lower shaft 16 is applied to the feed base 32 via the feed base arm 37.
Thus, since the vertical movement and the horizontal reciprocating movement of the same period are given to the feed base 32, an ellipse movement can be made by adjusting those phases appropriately. Further, since the feed dog 20 is arranged so that the tooth tip protrudes upward from the upper surface of the sewing bed in the upper section of the elliptical motion, the workpiece on the upper surface of the sewing bed can be fed in the movement of the upper section. it can. Further, when the reciprocal width of the horizontal feed amount is adjusted by the feed adjusting mechanism 50, the feed amount can be adjusted accordingly.

(送り調節機構)
送り調節機構50は、連結リンク40と水平送り用偏心ロッド36の連結部においてこれらを連結する連結軸に軸支された一対の角駒51(一つのみ図示)と、角駒51を往動させるガイド溝52aを備えた円柱状の送り調節体52と、送り調節体52をその中心線を基準に回転させる入力腕53と、送り量を設定入力するための送り調節部材としての送り調節ダイヤル54と、送り調節ダイヤル54への回転操作により進退移動する送り調節軸55と、送り調節軸55の先端部が当接するカム部56aを備えると共に送り調節軸55の進退移動に応じて回動を行う送り調節台56と、送り調節台56と入力腕53とを連結する送り調節ロッド57と、送り調節台56のカム部56aに対する送り調節軸55の先端部の当接状態を維持するように送り調節台56に弾性力を付与するコイルバネ58と、送り調節台56を回動可能に軸支する回動軸59と、回動軸59を回動操作するバックレバー60を備えている。
(Feed adjustment mechanism)
The feed adjusting mechanism 50 includes a pair of square pieces 51 (only one is shown) pivotally supported by a connecting shaft that connects the connecting link 40 and the horizontal feeding eccentric rod 36, and the square piece 51 is moved forward. A cylindrical feed adjusting body 52 having a guide groove 52a to be driven, an input arm 53 for rotating the feed adjusting body 52 with respect to the center line thereof, and a feed adjusting dial as a feed adjusting member for setting and inputting a feed amount 54, a feed adjustment shaft 55 that moves forward and backward by a rotation operation to the feed adjustment dial 54, and a cam portion 56 a that abuts on the tip of the feed adjustment shaft 55. The feed adjustment base 56 to be performed, the feed adjustment rod 57 that connects the feed adjustment base 56 and the input arm 53, and the contact state of the tip of the feed adjustment shaft 55 with the cam portion 56 a of the feed adjustment base 56 are maintained. A coil spring 58 for applying elastic force to control seat 56 is sent to a rotation shaft 59 for supporting the feed adjusting base 56 rotatably, and a back lever 60 for rotating operation of the rotation shaft 59.

送り調節機構50は、送り調節ダイヤル54を回転操作すると、送り調節軸55が進退移動して送り調節台56を回動し、送り調節ロッド57及び入力腕53を介して送り調節体52を回転させることで角駒51の往復動作方向を変化させ、送り機構30による水平送り量を変化せしめて被縫製物の送り量を調節するようになっている。
上述したように、連結リンク40と水平送り用偏心ロッド36との連結部に角駒51が設けられ、当該角駒51は送り調節体52の半径方向に設けられたガイド溝52aに沿ってのみ運動可能となっている。
When the feed adjusting dial 54 is rotated, the feed adjusting shaft 55 is moved forward and backward to rotate the feed adjusting table 56, and the feed adjusting body 52 is rotated via the feed adjusting rod 57 and the input arm 53. As a result, the reciprocating direction of the square piece 51 is changed, and the horizontal feed amount by the feed mechanism 30 is changed to adjust the feed amount of the sewing product.
As described above, the square piece 51 is provided at the connecting portion between the connection link 40 and the horizontal feed eccentric rod 36, and the square piece 51 is only along the guide groove 52 a provided in the radial direction of the feed adjusting body 52. It is possible to exercise.

そして、水平送り用偏心ロッド36によって角駒51が往復運動を行う場合に、その往復方向が連結リンク40の長手方向に対してほぼ直角となる方向に向けられているときには、連結リンク40が水平送り腕39側の端部を中心として回動するだけなので、水平送り腕39を介して水平送り軸38には回動運動は伝わらない。一方、角駒51の往復方向が連結リンク40の長手方向に対して直角となる方向から外れてゆくにつれて、連結リンク40の長手方向に沿った運動成分が生じるので、水平送り腕39を介して水平送り軸38に回動運動が付与されることになる。
従って、送り調節体52を回転操作することにより水平送り軸38の往復回動角度が変化して被縫製物の送り量を調節することができる。
かかる送り調節体52の回転操作は、送り調節ダイヤル54の回転操作によって行われる。
When the square piece 51 reciprocates by the horizontal feed eccentric rod 36, when the reciprocating direction is oriented in a direction substantially perpendicular to the longitudinal direction of the connecting link 40, the connecting link 40 is horizontal. Since it only rotates around the end on the side of the feed arm 39, no rotational movement is transmitted to the horizontal feed shaft 38 via the horizontal feed arm 39. On the other hand, as the reciprocating direction of the square piece 51 deviates from the direction perpendicular to the longitudinal direction of the connecting link 40, a motion component along the longitudinal direction of the connecting link 40 is generated. A turning motion is given to the horizontal feed shaft 38.
Therefore, by rotating the feed adjusting body 52, the reciprocating rotation angle of the horizontal feed shaft 38 is changed, and the feed amount of the sewing product can be adjusted.
The rotation operation of the feed adjustment body 52 is performed by the rotation operation of the feed adjustment dial 54.

送り調節機構50には、送り調節ダイヤル54の調節量が所定量まで達した際に、送り調節ダイヤル54のそれ以上の量の調節を規制する規制機構90と、規制機構90による送り調節ダイヤル54の調節操作の規制を解除する解除機構100と、が設けられている。   The feed adjustment mechanism 50 includes a regulation mechanism 90 that regulates the adjustment of the feed adjustment dial 54 when the adjustment amount of the feed adjustment dial 54 reaches a predetermined amount, and a feed adjustment dial 54 by the regulation mechanism 90. And a release mechanism 100 for releasing the regulation of the adjustment operation.

(規制機構)
図3〜図6に示すように、規制機構90は、一端がミシンフレームに取り付けられた付勢部材としてのバネ91と、このバネ91の他端に取り付けられたバネ91の付勢力により送り調節軸55の軸線方向に沿って付勢され、送り調節ダイヤル54を押圧するストッパ部材としてのストッパピン92と、送り調節ダイヤル54の裏面側に設けられ、送り調節ダイヤル54の調節量が所定量まで達した際に、ストッパピン92に当接して送り調節ダイヤル54のそれ以上の回転操作を規制する当接部材としての突起部93と、を備えている。
ストッパピン92は、バネ91により常に送り調節ダイヤル54に向けて付勢されており、バネ91の付勢力がかかった状態で送り調節ダイヤル54の裏面に当接している。ストッパピン92は、送り調節ダイヤル54を回転させたときの突起部93の移動軌跡上で送り調節ダイヤル54と当接するように構成されている。これにより、送り調節ダイヤル54を一回転させる間にストッパピン92と突起部93とが当接して送り調節ダイヤル54の回転が規制される。規制機構90は、送り調節部材(送り調節ダイヤル54)の縫製時の最大送りピッチを規制する。
(Regulatory mechanism)
As shown in FIGS. 3 to 6, the regulating mechanism 90 adjusts the feed by a spring 91 as an urging member having one end attached to the sewing machine frame and an urging force of the spring 91 attached to the other end of the spring 91. A stopper pin 92 as a stopper member that is urged along the axial direction of the shaft 55 and presses the feed adjustment dial 54, and provided on the back side of the feed adjustment dial 54. The adjustment amount of the feed adjustment dial 54 is up to a predetermined amount. And a protrusion 93 as an abutting member that abuts against the stopper pin 92 and restricts further rotation operation of the feed adjusting dial 54 when it reaches.
The stopper pin 92 is always urged toward the feed adjustment dial 54 by the spring 91, and is in contact with the back surface of the feed adjustment dial 54 with the urging force of the spring 91 applied. The stopper pin 92 is configured to come into contact with the feed adjustment dial 54 on the movement locus of the projection 93 when the feed adjustment dial 54 is rotated. As a result, the stopper pin 92 and the protrusion 93 come into contact with each other while the feed adjustment dial 54 is rotated once, and the rotation of the feed adjustment dial 54 is restricted. The restriction mechanism 90 restricts the maximum feed pitch at the time of sewing of the feed adjustment member (feed adjustment dial 54).

(解除機構)
図3〜図6に示すように、解除機構100は、ミシンフレームの正面側(ユーザとの対向面側)に設けられている。
解除機構100は、板状に形成された解除レバー101を備えている。解除レバー101は、長手方向中央部近傍で段ねじ102により、ミシンフレームに回転自在に取り付けられている。段ねじ102は、解除レバー101の中央部近傍に形成された挿通孔101aに挿通され、ミシンフレームに取り付けられている。解除レバー101の一端には、解除レバー101を段ねじ102を中心に回転操作するための操作ノブ103が設けられている。操作ノブ103は、解除レバー101の一端に形成された挿通孔101bに嵌め込まれて固定されている。
(Release mechanism)
As shown in FIGS. 3 to 6, the release mechanism 100 is provided on the front side of the sewing machine frame (on the side facing the user).
The release mechanism 100 includes a release lever 101 formed in a plate shape. The release lever 101 is rotatably attached to the sewing machine frame by a step screw 102 in the vicinity of the central portion in the longitudinal direction. The stepped screw 102 is inserted into an insertion hole 101a formed near the center of the release lever 101, and is attached to the sewing machine frame. One end of the release lever 101 is provided with an operation knob 103 for rotating the release lever 101 around the step screw 102. The operation knob 103 is fixed by being fitted into an insertion hole 101 b formed at one end of the release lever 101.

解除レバー101の他端には、解除部104が形成されている。解除部104は、他の部分に対してその面が傾斜するように形成されている。これは、ストッパピン92と突起部93との間にできるだけ少ない抵抗で入り込んでストッパピン92をバネ91の付勢力に抗して突起部93の回転移動経路上から退避させるためである。すなわち、解除部104がストッパピン92と突起部93との間に入り込むことで、解除部104の厚さ分だけストッパピン92はバネ91の方向に押しやられるので、突起部93の回転移動を遮らないようにすることができる。   A release portion 104 is formed at the other end of the release lever 101. The release portion 104 is formed so that its surface is inclined with respect to other portions. This is because the stopper pin 92 is retracted from the rotational movement path of the protrusion 93 against the biasing force of the spring 91 by entering between the stopper pin 92 and the protrusion 93 with as little resistance as possible. That is, when the release portion 104 enters between the stopper pin 92 and the protrusion 93, the stopper pin 92 is pushed in the direction of the spring 91 by the thickness of the release portion 104, so that the rotational movement of the protrusion 93 is blocked. Can not be.

解除レバー101は、送り量調節の限界を解除しない場合には、操作ノブ103が段ねじ102の上方に位置し、解除部104が段ねじ102の下方に位置している。そして、送り量調節の限界を解除する場合には、操作ノブ103を把持して向かって時計回りに90度回転させることにより、操作ノブ103が段ねじ102の右方に位置し、解除部104が段ねじ102の左方に位置する。このとき、解除部104は、ストッパピン92と突起部93との間に下方から入り込むことになる。   When the release lever 101 does not release the limit of the feed amount adjustment, the operation knob 103 is located above the step screw 102 and the release portion 104 is located below the step screw 102. In order to release the limit of the feed amount adjustment, the operation knob 103 is positioned to the right of the stepped screw 102 by grasping the operation knob 103 and rotating it clockwise by 90 degrees. Is located to the left of the stepped screw 102. At this time, the release portion 104 enters between the stopper pin 92 and the protrusion 93 from below.

(送り調節操作について)
図6は、送り調節ダイヤル54の操作による送り調節台56の回転角度の例を示す説明図である。図6(a)は送りが0のときの規制機構との関係を示す側面図、図6(b)は送りピッチが最大のときの規制機構との関係を示す側面図、図6(c)は送りが規制機構による限界を超えたときの規制機構との関係を示す側面図である。
送り調節台56は、その一端部近傍が回動軸59に軸支され、他端部は送り調節ロッド57に連結されている。また、送り調節台56の一端部には、二つの傾斜面を有する凹状の窪み形状のカム面を有するカム部56aを有している。
図6(a)に示すように、送り調節ダイヤル54の回転操作により送り調節軸55が前進して、カム部56aの最深部まで進入すると、送り調節台56は回動が規制され固定状態となる。このときの送り調節台56の回動角度が送り量0となるように設定されている。
このとき、送り調節ダイヤル54の操作量の限界には到達していないため、ストッパピン92と突起部93は当接していない。
(About feed adjustment operation)
FIG. 6 is an explanatory view showing an example of the rotation angle of the feed adjusting table 56 by the operation of the feed adjusting dial 54. 6A is a side view showing the relationship with the regulating mechanism when the feed is 0, FIG. 6B is a side view showing the relationship with the regulating mechanism when the feed pitch is maximum, and FIG. 6C. These are side views which show the relationship with the control mechanism when the feed exceeds the limit of the control mechanism.
The feed adjustment base 56 is pivotally supported by the rotation shaft 59 at one end thereof, and the other end is connected to the feed adjustment rod 57. Further, one end portion of the feed adjusting base 56 has a cam portion 56a having a concave and recessed cam surface having two inclined surfaces.
As shown in FIG. 6 (a), when the feed adjusting shaft 55 advances by the rotation operation of the feed adjusting dial 54 and enters the deepest part of the cam portion 56a, the feed adjusting base 56 is restricted from rotating and fixed. Become. The rotation angle of the feed adjusting table 56 at this time is set so that the feed amount becomes zero.
At this time, since the limit of the operation amount of the feed adjustment dial 54 has not been reached, the stopper pin 92 and the protrusion 93 are not in contact with each other.

そして、そこから送り調節軸55が後退すると、当該後退量に応じて送り調節台56は回動可能となるが、送り調節ロッド57との連結端部側からコイルバネ58の押圧力又は張力を受けるので、カム部56aの内部のいずれか一方の傾斜面に送り調節軸55の先端部が当接した状態で送り調節台56の回動角度は固定された状態となる。前述の0位置からの回動角度が大きくなると送り量が大きくなるように調節される。そして、図6(b)に示す状態になると、送り調節量は最大となり、ストッパピン92と突起部93が当接し、それ以上の調節を行うことができない。   Then, when the feed adjusting shaft 55 is retracted from there, the feed adjusting table 56 can be rotated according to the retracted amount, but receives the pressing force or tension of the coil spring 58 from the connecting end side with the feed adjusting rod 57. Therefore, the rotation angle of the feed adjusting base 56 is fixed in a state where the tip end portion of the feed adjusting shaft 55 is in contact with any one of the inclined surfaces inside the cam portion 56a. The feed amount is adjusted to increase as the rotation angle from the 0 position increases. Then, in the state shown in FIG. 6B, the feed adjustment amount becomes maximum, the stopper pin 92 and the projection 93 come into contact with each other, and further adjustment cannot be performed.

図6(b)に示す状態において、ユーザが操作ノブ93を90度回転させると、図6(c)に示すように、解除レバー101は、段ねじ102を中心に回転し、解除部104が下方からストッパピン92と突起部93との間に入り込む。解除部104の進入により、ストッパピン92は、バネ91の付勢力に抗してバネ91の方向(送り調節ダイヤル54から遠ざかる方向)に移動し、ストッパピン92と突起部93との当接が解除される。これにより、送り調節ダイヤル54をさらに回転させて送り量を大きくする調節を行うことができる。すなわち、解除レバー101の操作により、送り調節ダイヤル54の規制を解除することで、いずれのねじ81,82も個別に工具孔72に対応した位置に移動可能となる。   In the state shown in FIG. 6B, when the user rotates the operation knob 93 by 90 degrees, the release lever 101 rotates around the stepped screw 102 as shown in FIG. It enters between the stopper pin 92 and the protrusion 93 from below. The stopper pin 92 moves in the direction of the spring 91 (the direction away from the feed adjustment dial 54) against the biasing force of the spring 91 due to the entry of the release portion 104, and the contact between the stopper pin 92 and the protrusion 93 is made. Canceled. Thereby, the feed adjustment dial 54 can be further rotated to adjust to increase the feed amount. That is, by releasing the restriction of the feed adjustment dial 54 by operating the release lever 101, any of the screws 81 and 82 can be individually moved to a position corresponding to the tool hole 72.

<作用効果>
上記構成を有するミシン1によれば、解除機構100により送り調節ダイヤル54の規制を解除することにより、複数のねじ81,82が個別に一つの工具孔72に対応した位置に移動可能となる。したがって、ねじ81,82の配置や縫製時の最大送りピッチを変更しないで、送り歯20の交換作業を容易にすることができる。よって、針板70を取り付けた状態のままでも工具でねじ81,82を操作することにより、送り歯20の本締めを行うことができる。
ここで、複数のねじ81,82により送り歯20を送り機構30に締結する機構であっても、解除機構100により規制機構90による送り調節ダイヤル54の操作の規制を解除することができるので、ねじ81,82間の長さが縫製時の最大送りピッチより大きくても、一つの工具孔72を形成するだけでよい。これにより、工具孔72は一つで済み、長孔にする必要もないので、針板70の剛性を維持することができる。
よって、送り歯20の交換作業を容易にし、作業効率の低下を抑制することができる。
<Effect>
According to the sewing machine 1 having the above-described configuration, the restriction of the feed adjustment dial 54 is released by the release mechanism 100, whereby the plurality of screws 81 and 82 can be individually moved to positions corresponding to one tool hole 72. Therefore, the replacement operation of the feed dog 20 can be facilitated without changing the arrangement of the screws 81 and 82 and the maximum feed pitch during sewing. Therefore, the feed dog 20 can be finally tightened by operating the screws 81 and 82 with a tool even with the needle plate 70 attached.
Here, even when the feed dog 20 is fastened to the feed mechanism 30 by the plurality of screws 81 and 82, the restriction of the operation of the feed adjustment dial 54 by the restriction mechanism 90 can be released by the release mechanism 100. Even if the length between the screws 81 and 82 is larger than the maximum feed pitch at the time of sewing, only one tool hole 72 needs to be formed. As a result, only one tool hole 72 is required, and there is no need to make it a long hole, so that the rigidity of the needle plate 70 can be maintained.
Therefore, the replacement work of the feed dog 20 can be facilitated, and a reduction in work efficiency can be suppressed.

また、解除レバー101が操作されると、解除レバー101はストッパピン92と突起部93との間に入り込んでストッパピン92をバネ91の付勢力に抗して突起部93の移動経路上から退避させる。
これにより、送り調節ダイヤル54を操作した際に、突起部93がストッパピン92に当接することがなくなり、送り調節ダイヤル54の操作量の規制が解除される。よって、縫製時の最大送りピッチの制限を超えて送りピッチを更に大きくすることができ、ねじ81,82間の長さが縫製時の最大送りピッチより大きくても、一つの工具孔72を形成するだけでよい。これにより、工具孔72は一つで済み、長孔にする必要もないので、針板70の剛性を維持することができる。
よって、送り歯20の交換作業を容易にし、作業効率の低下を抑制することができる。
Further, when the release lever 101 is operated, the release lever 101 enters between the stopper pin 92 and the protrusion 93 and retracts the stopper pin 92 from the moving path of the protrusion 93 against the biasing force of the spring 91. Let
Thereby, when the feed adjustment dial 54 is operated, the projection 93 does not come into contact with the stopper pin 92, and the restriction on the operation amount of the feed adjustment dial 54 is released. Therefore, the feed pitch can be further increased beyond the limit of the maximum feed pitch at the time of sewing, and one tool hole 72 is formed even if the length between the screws 81 and 82 is larger than the maximum feed pitch at the time of sewing. Just do it. As a result, only one tool hole 72 is required, and there is no need to make it a long hole, so that the rigidity of the needle plate 70 can be maintained.
Therefore, the replacement work of the feed dog 20 can be facilitated, and a reduction in work efficiency can be suppressed.

また、工具の未使用時には、一つの工具孔72に蓋体73を嵌め込むことにより、布が工具孔72に引っかかることがなくなる。
これにより、縫製時の布送り動作をよりスムーズに行うことができる。
Further, when the tool is not used, the lid 73 is fitted into one tool hole 72 so that the cloth is not caught in the tool hole 72.
Thereby, the cloth feeding operation at the time of sewing can be performed more smoothly.

<その他>
なお、本発明の範囲は上記実施形態に限られるものではない。
例えば、図7、図8に示すような解除機構110としてもよい。
図7に示すように、解除機構110は、ピン状に形成された解除ピン111を備えている。解除ピン111は、送り調節ダイヤル54に形成された挿通孔54aに移動自在に挿通されている。挿通孔54aは、送り調節軸55の軸線方向に沿って送り調節ダイヤル54の表面から裏面に向けて貫通するように形成されている。また、挿通孔54aは、途中で拡径されるような段状に形成されている。段状に形成された挿通孔54aは、送り調節ダイヤル54の裏面側の開口の方が表面側の開口よりも大きくなるように形成されている。
<Others>
The scope of the present invention is not limited to the above embodiment.
For example, a release mechanism 110 as shown in FIGS. 7 and 8 may be used.
As shown in FIG. 7, the release mechanism 110 includes a release pin 111 formed in a pin shape. The release pin 111 is movably inserted in an insertion hole 54 a formed in the feed adjustment dial 54. The insertion hole 54 a is formed so as to penetrate from the front surface to the back surface of the feed adjustment dial 54 along the axial direction of the feed adjustment shaft 55. Further, the insertion hole 54a is formed in a step shape that is enlarged in the middle. The step-shaped insertion hole 54 a is formed such that the opening on the back surface side of the feed adjustment dial 54 is larger than the opening on the front surface side.

解除ピン111も段状の挿通孔54aに合わせて形成され、挿通孔54aの段部が解除ピン111の付勢方向への移動のストッパとして機能している。解除ピン111が挿通孔54aの段部に当接するまで移動した場合において、解除ピン111の一端111aは、送り調節ダイヤル54の表面側から突出した状態となり、解除ピン111の他端111bは、突起部93よりも突出量が小さくなる。この状態において、解除ピン111の送り調節ダイヤル54の表面側からの突出量は、送り調節ダイヤル54に設けられた突起部93の突出量と同じ又はそれ以上の突出量となるように形成されている。
よって、図8に示すように、解除ピン111を送り調節ダイヤル54の表面側から押し込んだ際には、解除ピン111の他端111bは、突出部93よりもストッパピン92側に突出し、送り調節ダイヤル54を回転させたときにストッパピン92と突出部93との接触を確実に防止することができる。
また、図10に示すように、解除ピン111の他端111bにおけるストッパピン92との当接面は、ストッパピン92よりも大きくなるように形成され、解除ピン111の当接面111aには、外縁から内側に向かうにつれて凹むように形成されている。また、ストッパピン92における解除ピン111に当接する先端は、先が尖るように形成されている。
The release pin 111 is also formed in accordance with the stepped insertion hole 54a, and the step portion of the insertion hole 54a functions as a stopper for moving the release pin 111 in the urging direction. When the release pin 111 moves until it contacts the step of the insertion hole 54a, one end 111a of the release pin 111 protrudes from the surface side of the feed adjustment dial 54, and the other end 111b of the release pin 111 The protruding amount is smaller than that of the portion 93. In this state, the protruding amount of the release pin 111 from the surface side of the feed adjusting dial 54 is formed so as to be the same as or more than the protruding amount of the protruding portion 93 provided on the feed adjusting dial 54. Yes.
Therefore, as shown in FIG. 8, when the release pin 111 is pushed in from the surface side of the feed adjustment dial 54, the other end 111b of the release pin 111 protrudes further toward the stopper pin 92 than the protruding portion 93, thereby adjusting the feed. When the dial 54 is rotated, the contact between the stopper pin 92 and the protrusion 93 can be reliably prevented.
Further, as shown in FIG. 10, the contact surface of the other end 111b of the release pin 111 with the stopper pin 92 is formed to be larger than the stopper pin 92, and the contact surface 111a of the release pin 111 has It is formed so as to be recessed from the outer edge toward the inside. Further, the tip of the stopper pin 92 that contacts the release pin 111 is formed to have a sharp tip.

このような構成とすることにより、解除ピン111をストッパピン92の付勢力に抗して移動させると、解除ピン111は、送り調節ダイヤル54から突出してストッパピン92を押圧する。ここで、解除ピン111は、ストッパピン111との当接部分が突出部93の先端よりも送り調節ダイヤル54から突出するように移動可能であるため、解除ピン111は、ストッパピン92が突出部93に当接しない位置までストッパピン92を移動させることができる。
これにより、送り調節ダイヤル54を操作した際に、突出部93がストッパピン92に当接することがなくなり、送り調節ダイヤル54の操作量の規制が解除される。よって、縫製時の最大送りピッチの制限を超えて送りピッチを更に大きくすることができ、ねじ81,82間の長さが送りピッチより大きくても、一つの工具孔72を形成するだけでよい。これにより、工具孔72は一つで済み、長孔にする必要もないので、針板70の剛性を維持することができる。
よって、送り歯20の交換作業を容易にし、作業効率の低下を抑制することができる。
With this configuration, when the release pin 111 is moved against the urging force of the stopper pin 92, the release pin 111 protrudes from the feed adjustment dial 54 and presses the stopper pin 92. Here, since the release pin 111 is movable so that the contact portion with the stopper pin 111 protrudes from the feed adjustment dial 54 rather than the tip of the protrusion 93, the stopper pin 92 is the protrusion of the release pin 111. The stopper pin 92 can be moved to a position where it does not come into contact with 93.
Thereby, when the feed adjustment dial 54 is operated, the protruding portion 93 does not come into contact with the stopper pin 92, and the restriction on the operation amount of the feed adjustment dial 54 is released. Therefore, the feed pitch can be further increased beyond the limit of the maximum feed pitch at the time of sewing, and only one tool hole 72 needs to be formed even if the length between the screws 81 and 82 is larger than the feed pitch. . As a result, only one tool hole 72 is required, and there is no need to make it a long hole, so that the rigidity of the needle plate 70 can be maintained.
Therefore, the replacement work of the feed dog 20 can be facilitated, and a reduction in work efficiency can be suppressed.

また、解除ピン111のストッパピン92との当接面(言い換えると、他端111bの端面)は、ストッパピン92よりも大きくなるように形成されるとともに、外縁から内側に向かうにつれて凹むように形成されているので、ストッパピン92は、解除ピン111の内側に引き寄せられ、付勢力によって当接面の内側で安定する。
これにより、解除ピン111の操作により、ストッパピン92が解除ピン111の当接面から外れることがなくなる。
さらに、解除ピン111のかかる当接面の外縁を面取りする等して滑らかな曲面とすることにより、解除ピン111とストッパピン92との引っかかりを抑えることができる。
Further, the contact surface of the release pin 111 with the stopper pin 92 (in other words, the end surface of the other end 111b) is formed to be larger than the stopper pin 92, and is formed to be recessed from the outer edge toward the inside. Therefore, the stopper pin 92 is attracted to the inside of the release pin 111 and is stabilized inside the contact surface by the urging force.
As a result, the stopper pin 92 is not detached from the contact surface of the release pin 111 due to the operation of the release pin 111.
Furthermore, by making the outer edge of the contact surface of the release pin 111 a chamfered surface or the like, the engagement between the release pin 111 and the stopper pin 92 can be suppressed.

ミシンの送りに関する機構を示す斜視図。The perspective view which shows the mechanism regarding feeding of a sewing machine. (a)は送り歯と針板の機構を示す斜視図、(b)は送り歯と針板の機構を示す側面図。(A) is a perspective view which shows the mechanism of a feed dog and a needle plate, (b) is a side view which shows the mechanism of a feed dog and a needle plate. 規制機構及び解除機構を示す平面図。The top view which shows a control mechanism and a cancellation | release mechanism. (a)は解除レバーの平面図、(b)は解除レバーの解除部側からの斜視図、(c)は解除レバーの正面斜め側からの斜視図。(A) is a top view of a release lever, (b) is a perspective view from the release part side of a release lever, (c) is a perspective view from the front diagonal side of a release lever. (a)は解除機構により規制機構の規制を解除したときの正面側からの斜視図、(b)は(a)の背面側からの斜視図、(c)は(a)の平面図。(A) is a perspective view from the front side when the restriction | limiting of a restriction | limiting mechanism is cancelled | released by the cancellation | release mechanism, (b) is a perspective view from the back side of (a), (c) is a top view of (a). (a)は送りが0のときの規制機構との関係を示す側面図、(b)は送りが最大のときの規制機構との関係を示す側面図、(c)は送りが規制機構による限界を超えたときの規制機構との関係を示す側面図。(A) is a side view showing the relationship with the regulation mechanism when the feed is 0, (b) is a side view showing the relationship with the regulation mechanism when the feed is maximum, and (c) is the limit due to the regulation mechanism. The side view which shows the relationship with the control mechanism when it exceeds. 解除機構の他の例を示す図であり、(a)は背面側からの斜視図、(b)は正面側からの斜視図、(c)は側面図。It is a figure which shows the other example of a cancellation | release mechanism, (a) is a perspective view from the back side, (b) is a perspective view from the front side, (c) is a side view. 図7において、解除ピンを動かして規制機構の規制を解除したときの状態を示す図であり、(a)は背面側からの斜視図、(b)は正面側からの斜視図、(c)は側面図。In FIG. 7, it is a figure which shows a state when the cancellation | release pin is moved and the control of a control mechanism is cancelled | released, (a) is a perspective view from the back side, (b) is a perspective view from the front side, (c) Is a side view.

符号の説明Explanation of symbols

1 ミシン
20 送り歯
30 送り機構
50 送り調節機構
54 送り調節ダイヤル(送り調節部材)
70 針板
72 工具孔
73 蓋体
90 規制機構
91 バネ(付勢部材)
92 ストッパピン(ストッパ部材)
93 突起部(当接部材)
100 解除機構
101 解除レバー
110 解除機構
111 解除ピン
1 sewing machine 20 feed dog 30 feed mechanism 50 feed adjustment mechanism 54 feed adjustment dial (feed adjustment member)
70 Needle plate 72 Tool hole 73 Lid 90 Restriction mechanism 91 Spring (biasing member)
92 Stopper pin (stopper member)
93 Protrusion (contact member)
100 Release mechanism 101 Release lever 110 Release mechanism 111 Release pin

Claims (5)

被縫製物が載置される針板と、
前記針板の上面から出没し、針板上の被縫製物を送る送り歯と、
前記送り歯に送り動作をさせる送り機構と、
前記針板の下方で前記送り歯を前記送り機構に着脱自在に締結すると共に、布送り方向に沿って複数配置される締結部材と、
操作量に応じて前記送り機構による送り歯の送り量を調節する送り調節部材と、
前記送り調節部材の縫製時の最大送りピッチを規制する規制機構と、を備えるミシンにおいて、
前記規制機構による前記送り調節部材の操作の規制を解除する解除機構を有し、
前記針板に、前記締結部材を操作可能な工具を通す一つの工具孔を形成し、
前記解除機構により前記送り調節部材の規制を解除することにより、前記複数の締結部材が個別に前記工具孔に対応した位置に移動可能であることを特徴とするミシン。
A needle plate on which the workpiece is placed;
A feed dog that appears from the upper surface of the needle plate and feeds the workpiece on the needle plate,
A feed mechanism that causes the feed dog to perform a feed operation;
A fastening member that is detachably fastened to the feed mechanism below the needle plate, and a plurality of fastening members are disposed along the cloth feed direction,
A feed adjustment member that adjusts the feed amount of the feed dog by the feed mechanism according to an operation amount;
In a sewing machine comprising a regulation mechanism that regulates the maximum feed pitch during sewing of the feed adjustment member,
A release mechanism for releasing the restriction of the operation of the feed adjustment member by the restriction mechanism;
In the needle plate, one tool hole for passing a tool capable of operating the fastening member is formed,
The sewing machine characterized in that the plurality of fastening members can be individually moved to positions corresponding to the tool holes by releasing the restriction of the feed adjusting member by the releasing mechanism.
前記規制機構は、
前記送り調節部材に進退自在なストッパ部材と、
前記送り調節部材に向けて、前記ストッパ部材を付勢する付勢部材と、
前記送り調節部材に設けられ、前記送り調節部材を所定量操作した際に前記ストッパ部材に当接する当接部材と、
を備えることを特徴とする請求項1に記載のミシン。
The regulation mechanism is
A stopper member which is movable forward and backward to the feed adjusting member;
An urging member for urging the stopper member toward the feed adjusting member;
A contact member that is provided on the feed adjustment member and contacts the stopper member when the feed adjustment member is operated by a predetermined amount;
The sewing machine according to claim 1, comprising:
前記解除機構は、操作により前記ストッパ部材と前記当接部材との間に入り込んで前記ストッパ部材を前記付勢部材の付勢力に抗して前記当接部材の移動経路上から退避させる解除レバーを有することを特徴とする請求項2に記載のミシン。   The release mechanism includes a release lever that enters between the stopper member and the contact member by operation and retracts the stopper member from the moving path of the contact member against the biasing force of the biasing member. The sewing machine according to claim 2, further comprising: 前記解除機構は、前記送り調節部材に挿通されると共に、前記ストッパ部材に当接する位置で前記ストッパ部材の付勢方向に沿って移動自在とされた解除ピンを有し、
前記解除ピンは、前記ストッパ部材との当接部分が前記当接部材の先端よりも前記送り調節部材から突出するように移動可能であることを特徴とする請求項2に記載のミシン。
The release mechanism includes a release pin that is inserted through the feed adjustment member and is movable along the biasing direction of the stopper member at a position that contacts the stopper member.
3. The sewing machine according to claim 2, wherein the release pin is movable so that a contact portion with the stopper member protrudes from the feed adjustment member rather than a tip end of the contact member.
工具の未使用時に前記一つの工具孔を埋める蓋体を当該工具孔に挿脱自在に設けたことを特徴とする請求項1〜4のいずれか一項に記載のミシン。   The sewing machine according to any one of claims 1 to 4, wherein a lid for filling the one tool hole when the tool is not used is detachably provided in the tool hole.
JP2008236115A 2008-09-16 2008-09-16 sewing machine Expired - Fee Related JP5160356B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109881376A (en) * 2019-03-18 2019-06-14 拓卡奔马机电科技有限公司 Sewing length adjustment device and its operational method

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CN112779686A (en) * 2021-01-30 2021-05-11 琦星智能科技股份有限公司 Sewing machine with zero point position

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Publication number Priority date Publication date Assignee Title
JP2006238905A (en) * 2005-02-28 2006-09-14 Brother Ind Ltd Sewing machine and feed adjusting mechanism of sewing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109881376A (en) * 2019-03-18 2019-06-14 拓卡奔马机电科技有限公司 Sewing length adjustment device and its operational method
CN109881376B (en) * 2019-03-18 2021-04-27 拓卡奔马机电科技有限公司 Needle pitch adjusting device and operating method thereof

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