JP2016067750A - Cloth-feeding device and sewing machine including cloth-feeding device - Google Patents

Cloth-feeding device and sewing machine including cloth-feeding device Download PDF

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JP2016067750A
JP2016067750A JP2014202380A JP2014202380A JP2016067750A JP 2016067750 A JP2016067750 A JP 2016067750A JP 2014202380 A JP2014202380 A JP 2014202380A JP 2014202380 A JP2014202380 A JP 2014202380A JP 2016067750 A JP2016067750 A JP 2016067750A
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cloth
feeding device
fixing member
holding member
holding
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隆志 桝谷
Takashi Masutani
隆志 桝谷
倫子 宇野
Rinko Uno
倫子 宇野
宏明 鬼頭
Hiroaki Kito
宏明 鬼頭
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Brother Industries Ltd
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Brother Industries Ltd
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Priority to JP2014202380A priority Critical patent/JP2016067750A/en
Priority to CN201520753932.3U priority patent/CN205062388U/en
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Abstract

PROBLEM TO BE SOLVED: To provide a cloth-feeding device which can suppress variations in the movement ranges of cloth due to individual differences; and to provide a sewing machine including the cloth-feeding device.SOLUTION: A cloth-holding body 50 includes a fixing member 70 and a holding member 90. The fixing member 70 is fixed to the upper surface of a Y-axis movable member. The fixing member 70 includes four fastening holes 42 in an upper surface 72A of a support part 72. The holding member 90 is extended forward from the upper surface of the fixing member 70. The holding member 90 can hold cloth at the front end part thereof. The holding member 90 includes two through holes 41 in each of installation parts. The inner diameter of each through hole 41 is larger than the inner diameter of each fastening hole 42. The holding member 90 is fixed to the fixing member 70 by inserting four screw members 46 through the through holes 41 and fastening them to the fastening holes 42. When an operator loosens the four screw members 46, the holding member 90 becomes movable by a clearance between each through hole 41 and a shank 46A, so that the fixing position of the holding member 90 with respect to the fixing member 70 can be adjusted in a horizontal direction.SELECTED DRAWING: Figure 6

Description

本発明は、布送り装置と該布送り装置を備えたミシンに関する。   The present invention relates to a cloth feeding device and a sewing machine including the cloth feeding device.

ミシンは布送り装置を備える。布送り装置は、布に所定の縫目を形成する為に、ミシンの縫針の上下動と同期して、布をX軸方向及びY軸方向に間欠的に移動する。特許文献1に開示のミシンが備える布送り装置は、移動台、押え台アーム、布押え、X軸モータ、Y軸モータ、駆動軸、ガイドブロックを備える。移動台は、X軸方向及びY軸方向の夫々に往復移動可能に設ける。押え台アームは移動台に固定する。布押えは、押え台アームに連結し、ミシンのミシンベッドの上方で布を保持可能である。X軸モータは、移動台及び押え台アームをX軸方向に往復移動する。Y軸モータは、移動台及び押え台アームをY軸方向に往復移動する。駆動軸はY軸モータと連結し、Y軸方向に延びる。ガイドブロックは、駆動軸の一端部に固定する。ガイドブロックは押え台アームに対してX軸方向に移動可能に連結する。X軸モータが駆動すると、移動台及び押え台アームはX軸方向に往復移動する。該場合、ガイドブロックは、押え台アームがX軸方向に往復移動するのを案内する。布押えはX軸方向に往復移動する。Y軸モータが駆動すると、駆動軸及びガイドブロックはY軸方向に往復移動し、押え台アームは、移動台と共にY軸方向に往復移動する。布押えはY軸方向に往復移動する。   The sewing machine includes a cloth feeding device. The cloth feeding device intermittently moves the cloth in the X-axis direction and the Y-axis direction in synchronization with the vertical movement of the sewing needle of the sewing machine in order to form a predetermined stitch on the cloth. The cloth feeding device provided in the sewing machine disclosed in Patent Document 1 includes a moving table, a presser base arm, a cloth presser, an X-axis motor, a Y-axis motor, a drive shaft, and a guide block. The moving table is provided so as to be able to reciprocate in both the X-axis direction and the Y-axis direction. The presser foot arm is fixed to the moving base. The cloth presser is connected to the presser base arm and can hold the cloth above the sewing machine bed. The X-axis motor reciprocates the moving base and the presser base arm in the X-axis direction. The Y-axis motor reciprocates the moving base and the presser base arm in the Y-axis direction. The drive shaft is connected to the Y-axis motor and extends in the Y-axis direction. The guide block is fixed to one end of the drive shaft. The guide block is connected to the presser base arm so as to be movable in the X-axis direction. When the X-axis motor is driven, the moving base and the presser base arm reciprocate in the X-axis direction. In this case, the guide block guides the presser base arm to reciprocate in the X-axis direction. The presser foot reciprocates in the X-axis direction. When the Y-axis motor is driven, the drive shaft and the guide block reciprocate in the Y-axis direction, and the presser base arm reciprocates in the Y-axis direction together with the moving table. The presser foot reciprocates in the Y-axis direction.

特公平6−93946号公報Japanese Patent Publication No. 6-93946

上記布送り装置では、移動台に固定する押え台アームと、駆動軸に固定したガイドブロックとが連結しているので、押え台アームの移動範囲は水平方向に調整できない。故に、布送り装置を構成する部材の寸法誤差及び該部材同士の組み付け誤差等によって布送り装置の個体差が生じると、布押えが保持する布の移動範囲がばらつく可能性がある。該場合、布の移動範囲が理想的な移動範囲とずれることで、縫いずれが発生する可能性がある。   In the cloth feeding device, since the presser base arm fixed to the moving base and the guide block fixed to the drive shaft are connected, the moving range of the presser base arm cannot be adjusted in the horizontal direction. Therefore, if individual differences of the cloth feeding device occur due to dimensional errors of members constituting the cloth feeding device, assembly errors between the members, etc., there is a possibility that the movement range of the cloth held by the cloth presser varies. In this case, there is a possibility that any sewing will occur due to the movement range of the cloth deviating from the ideal movement range.

本発明の目的は、布の移動範囲が個体差によってばらつくことを抑制できる布送り装置及び布送り装置を備えたミシンを提供することである。   The objective of this invention is providing the sewing machine provided with the cloth feeding apparatus which can suppress that the movement range of a cloth varies by individual differences, and the cloth feeding apparatus.

請求項1の布送り装置は、布を保持可能な布保持体と、前記布保持体を支持する移動体と、前記移動体を、水平方向と平行な第一方向と、前記水平方向と平行且つ前記第一方向と直交する第二方向に移動可能に支持する移動支持機構と、前記移動支持機構を介して前記移動体を前記第一方向に駆動する第一駆動機構と、前記布保持体に連結する連結部材を有し、前記連結部材を前記第二方向に駆動することで、前記布保持体を前記第二方向に駆動する第二駆動機構とを備え、前記第一駆動機構の駆動で前記移動体が前記第一方向に移動した時、前記布保持体が前記連結部材に対して前記第一方向に移動可能である布送り装置において、前記布保持体は、前記移動体に固定し、前記第一方向に移動可能に前記連結部材と連結する固定部材と、前記固定部材と着脱可能に固定し、前記布を保持可能な保持部材と、前記固定部材に対する前記保持部材の固定位置を前記水平方向に調整可能な位置調整機構とを備えたことを特徴とする。第一駆動機構が移動体を第一方向に駆動し、第二駆動機構が移動体を第二方向に駆動する。故に、移動支持機構が支持する布保持体は、第一方向及び第二方向に移動する。布保持体が保持する布は所定の範囲を移動する。ここで、布保持体が位置調整機構を備えることで、固定部材に対する保持部材の固定位置は水平方向に調整可能である。故に、布保持体は、連結部材と連結し且つ前記移動体に固定していても、移動範囲が調整可能となる。故に、布送り装置は、布の移動範囲が個体差によってばらつくことを抑制できる。   The cloth feeding device according to claim 1 is a cloth holding body capable of holding a cloth, a moving body supporting the cloth holding body, a first direction parallel to a horizontal direction, and a parallel to the horizontal direction. And a movable support mechanism that supports the movable body in a second direction orthogonal to the first direction, a first drive mechanism that drives the movable body in the first direction via the movable support mechanism, and the cloth holder. And a second drive mechanism for driving the cloth holding body in the second direction by driving the connection member in the second direction, and driving the first drive mechanism. When the movable body moves in the first direction, the cloth holder is movable in the first direction with respect to the connecting member. In the cloth feeding device, the cloth holder is fixed to the movable body. A fixing member connected to the connecting member so as to be movable in the first direction; Detachably fixed with fixing member, a holding member capable of holding the fabric, characterized in that the fixed position of the holding member with respect to the fixing member with an adjustable positioning mechanism in the horizontal direction. The first drive mechanism drives the moving body in the first direction, and the second drive mechanism drives the moving body in the second direction. Therefore, the cloth holding body supported by the movement support mechanism moves in the first direction and the second direction. The cloth held by the cloth holder moves within a predetermined range. Here, since the cloth holding body includes the position adjusting mechanism, the fixing position of the holding member with respect to the fixing member can be adjusted in the horizontal direction. Therefore, even if the cloth holding body is connected to the connecting member and is fixed to the moving body, the moving range can be adjusted. Therefore, the cloth feeding device can suppress variation in the movement range of the cloth due to individual differences.

請求項2の布送り装置において、前記保持部材は、前記固定部材の上面に設置してもよい。保持部材が固定部材の上面に設置することで、布送り装置は、大型化を抑制しつつ、保持部材の第二方向の長さを確保できる。   The cloth feeding device according to claim 2, wherein the holding member may be installed on an upper surface of the fixing member. When the holding member is installed on the upper surface of the fixing member, the cloth feeding device can secure the length in the second direction of the holding member while suppressing an increase in size.

請求項3の布送り装置において、前記固定部材の前記上面は、前記水平方向と平行な平面状であってもよい。固定部材の上面が水平方向と平行な平面状であることで、上面に設置した保持部材の位置は、水平方向に調整し易い。故に、布送り装置は、固定部材に対する保持部材の固定位置の調整を容易化できる。   4. The cloth feeding device according to claim 3, wherein the upper surface of the fixing member may have a planar shape parallel to the horizontal direction. Since the upper surface of the fixing member has a planar shape parallel to the horizontal direction, the position of the holding member installed on the upper surface can be easily adjusted in the horizontal direction. Therefore, the cloth feeding device can facilitate the adjustment of the fixing position of the holding member with respect to the fixing member.

請求項4の布送り装置において、前記保持部材は、前記固定部材の前記上面に設置する設置部を備え、前記位置調整機構は、前記固定部材の前記上面に形成した締結穴と、前記設置部のうち前記締結穴と対向する部位を上下方向に貫通し、内径が前記締結穴よりも大きい貫通穴と、前記貫通穴に挿通して前記締結穴に締結する軸部と、前記軸部のうち前記設置部に対して前記固定部材と反対側に設け、前記貫通穴の内径より大きい頭部とを有する螺子部材とを備えてもよい。作業者が締結穴に締結した螺子部材を緩めると、頭部が設置部から離間する方向に螺子部材は移動する。作業者は、軸部と貫通穴の隙間分、保持部材の水平方向の位置を調整できる。作業者が、螺子部材を緩めて保持部材を水平方向に移動した後、再度ネジを締結するだけで、保持部材の固定位置を水平方向に調整できる。故に、布送り装置は、固定部材に対する保持部材の固定位置の調整を容易化できる。   5. The cloth feeding device according to claim 4, wherein the holding member includes an installation portion installed on the upper surface of the fixing member, and the position adjusting mechanism includes a fastening hole formed on the upper surface of the fixing member, and the installation portion. A through-hole passing through a portion facing the fastening hole in the vertical direction, an inner diameter larger than the fastening hole, a shaft portion inserted through the through-hole and fastened to the fastening hole, and the shaft portion You may provide the screw member which is provided in the opposite side to the said fixing member with respect to the said installation part, and has a head larger than the internal diameter of the said through hole. When the operator loosens the screw member fastened to the fastening hole, the screw member moves in a direction in which the head is separated from the installation portion. The operator can adjust the horizontal position of the holding member by the gap between the shaft portion and the through hole. After the operator loosens the screw member and moves the holding member in the horizontal direction, the fastening position of the holding member can be adjusted in the horizontal direction only by fastening the screw again. Therefore, the cloth feeding device can facilitate the adjustment of the fixing position of the holding member with respect to the fixing member.

請求項5の布送り装置において、前記保持部材は、前記固定部材の前記上面から前記第二方向に延び、先端部に前記布を保持する枠体を着脱可能なアーム部を備え、前記設置部は、前記アーム部の基端部の前記第一方向における両側部の夫々に、前記水平方向と平行な板状に形成し、前記貫通穴は、前記各設置部に形成し、前記締結穴は、前記上面のうち前記各貫通穴と対向する部位の夫々に形成し、前記螺子部材は、前記アーム部の前記基端部に対して前記第一方向における両側の夫々において、前記各軸部が前記各貫通穴に挿通して前記各締結穴に締結し、且つ前記各頭部が前記各設置部を前記上面との間に挟んで固定してもよい。作業者は、設置部を固定部材の上面に固定することで、アーム部を固定部材に固定できる。ここで、設置部がアーム部の第一方向における両側に夫々形成し、且つ、各設置部は水平方向と平行な板状である。作業者は、アーム部を固定部材に安定して固定できる。故に、布送り装置は、安定した布送りを実現できる。   6. The cloth feeding device according to claim 5, wherein the holding member includes an arm portion that extends in the second direction from the upper surface of the fixing member, and that can attach and detach a frame body that holds the cloth at a tip portion. Is formed in a plate shape parallel to the horizontal direction on each of both side portions in the first direction of the base end portion of the arm portion, the through holes are formed in the installation portions, and the fastening holes are The screw member is formed on each of the portions of the upper surface facing the through holes, and the screw members are arranged on the both sides in the first direction with respect to the base end portion of the arm portion. The through holes may be inserted into the fastening holes and fastened to the fastening holes, and the heads may be fixed with the installation portions sandwiched between the top surfaces. The operator can fix the arm portion to the fixing member by fixing the installation portion to the upper surface of the fixing member. Here, the installation parts are respectively formed on both sides in the first direction of the arm part, and each installation part has a plate shape parallel to the horizontal direction. The operator can stably fix the arm portion to the fixing member. Therefore, the cloth feeding device can realize stable cloth feeding.

請求項6の布送り装置において、前記移動支持機構は、前記移動体を、前記第一方向及び前記第二方向に往復移動可能に支持し、前記第二駆動機構は、モータと、前記第二方向に延び、前記モータによって前記第二方向に往復駆動する棒状の棒状部材とを備え、前記連結部材は、前記棒状部材の一端部に設けたガイド部であり、前記固定部材は、前記ガイド部に対し前記第一方向に往復移動可能に連結し、前記第一方向に延びるレール部と、前記第一方向に延び、前記第二方向において前記レール部を前記ガイド部と反対側から支持し、延設方向の中央部に前記保持部材が着脱可能に固定し、前記移動体に固定する延設部とを備え、前記位置調整機構は、前記延設部に対する前記保持部材の前記固定位置を前記水平方向に調整可能であり、前記延設部は、前記延設方向の両端部が前記レール部と連結し、前記延設方向の中央部が隙間を挟んで前記レール部と対向してもよい。モータが駆動し棒状部材が第二方向に往復駆動することで、ガイド部を介してレール部は第二方向に往復移動する。故に、布保持体は第二方向に往復移動する。布保持体が第一方向に往復移動すると、レール部のガイド部に対する相対位置が変位する。ここで、布保持体が、ガイド部がレール部の第一方向一端部と接触する位置である端部位置から、ガイド部がレール部の第一方向中央部と接触する位置である中央位置まで移動すると、固定部材の前後方向に対する剛性は上昇する。しかしながら、延設部材の延設方向の中央部がレール部と隙間を挟んで対向するので、布保持体が中央位置まで移動しても、固定部材の剛性の上昇量は低減する。即ち、布保持体の第一方向の位置が変位しても、固定部材の第二方向に対する剛性は変化しにくい。故に、布保持体が第二方向に間欠的に移動する場合に慣性力が固定部材に作用しても、固定部材の第二方向の撓み量は、ばらつきにくい。故に、布送り装置は、移動する布を一時的に停止させる場合において、布の振れ量を安定化できる。   7. The cloth feeding device according to claim 6, wherein the movement support mechanism supports the movable body so as to reciprocate in the first direction and the second direction, and the second drive mechanism includes a motor and the second A rod-shaped rod-like member extending in the direction and driven to reciprocate in the second direction by the motor, the connecting member is a guide portion provided at one end of the rod-like member, and the fixing member is the guide portion And reciprocally connected to the first direction, a rail portion extending in the first direction, and extending in the first direction, and supporting the rail portion from the opposite side in the second direction, The holding member is detachably fixed to a central portion in the extending direction, and is provided with an extending portion that is fixed to the movable body, and the position adjusting mechanism is configured to set the fixing position of the holding member relative to the extending portion to the Adjustable horizontally, front Elongated portion, both end portions of the extending direction is connected to the rail portion, a center portion of the extending direction may be opposite to the rail portion across a gap. When the motor is driven and the rod-shaped member is reciprocated in the second direction, the rail portion reciprocates in the second direction via the guide portion. Therefore, the cloth holder reciprocates in the second direction. When the cloth holder is reciprocated in the first direction, the relative position of the rail portion with respect to the guide portion is displaced. Here, the cloth holding body from the end position where the guide part contacts the first direction one end of the rail part to the center position where the guide part contacts the first direction central part of the rail part When moved, the rigidity of the fixing member in the front-rear direction increases. However, since the central portion of the extending member in the extending direction is opposed to the rail portion with a gap, even if the cloth holding body moves to the central position, the amount of increase in the rigidity of the fixing member is reduced. That is, even if the position of the cloth holding body in the first direction is displaced, the rigidity of the fixing member in the second direction hardly changes. Therefore, even if the inertia force acts on the fixing member when the cloth holding body moves intermittently in the second direction, the amount of bending of the fixing member in the second direction is unlikely to vary. Therefore, the cloth feeding device can stabilize the amount of movement of the cloth when the moving cloth is temporarily stopped.

請求項7の布送り装置において、前記ガイド部は、前記レール部を挟んで互いに対向配置し、且つ前記レール部を前記第一方向に移動可能に案内する一対の挟持部を備え、前記一対の挟持部が上下方向の両側から前記レール部を案内する位置に設けてもよい。延設部材とレール部の間に、ガイド部が介在しないので、固定部材の第二方向における長さは短くなる。故に、布送り装置は小型化できる。   The cloth feeding device according to claim 7, wherein the guide portion includes a pair of holding portions that are opposed to each other with the rail portion interposed therebetween, and that guide the rail portion to be movable in the first direction. You may provide in a position where a clamping part guides the said rail part from the both sides of an up-down direction. Since the guide portion is not interposed between the extending member and the rail portion, the length of the fixing member in the second direction is shortened. Therefore, the cloth feeding device can be miniaturized.

請求項8の布送り装置において、前記保持部材は、前記延設部から前記レール部と反対側へ向けて延びてもよい。固定部材の第二方向における長さを短くできることで、布送り装置全体の第二方向の長さを大きくせずに保持部材の第二方向の長さを確保できる。作業者は、保持部材が保持する布を配置し易くなる。故に、布送り装置は、布の取り回しの作業性を向上できる。   The cloth feeding device according to claim 8, wherein the holding member may extend from the extending portion toward the side opposite to the rail portion. Since the length of the fixing member in the second direction can be shortened, the length of the holding member in the second direction can be secured without increasing the length of the entire cloth feeding device in the second direction. The operator can easily place the cloth held by the holding member. Therefore, the cloth feeding device can improve the workability of the cloth handling.

請求項9の布送り装置において、前記レール部は、前記延設部側の端面が、前記第二方向と直交して平面状となる形状であり、前記延設部は、前記延設方向の前記中央部が、前記両端部よりも前記端面から前記第二方向に離間するように凹む形状であってもよい。延設部の延設方向中央部が、両端部よりも凹む形状であることで、固定部材の第二方向の撓み量は、保持部材の第二方向の振れ量と一致し易くなる。故に、布送り装置は、移動する布を一時的に停止させる場合において、布の振れ量を更に安定化できる。   10. The cloth feeding device according to claim 9, wherein the rail portion has a shape in which an end surface on the extension portion side is in a planar shape orthogonal to the second direction, and the extension portion is in the extension direction. The center portion may be recessed so as to be separated from the end surface in the second direction than the both end portions. Since the central portion of the extending portion in the extending direction is recessed from both end portions, the amount of bending of the fixing member in the second direction can easily match the amount of deflection of the holding member in the second direction. Therefore, the cloth feeding device can further stabilize the amount of movement of the cloth when the moving cloth is temporarily stopped.

請求項10のミシンは、上記布送り装置を備えたことを特徴とする。ミシンは、上記布送り装置と同様の効果を奏する。   A sewing machine according to a tenth aspect includes the cloth feeding device. The sewing machine has the same effect as the cloth feeding device.

ミシン1の斜視図。The perspective view of the sewing machine 1. FIG. ミシン1の右側面図。The right view of the sewing machine 1. FIG. 脚柱部3、アーム部4を省略したミシン1の左上方からの斜視図。The perspective view from the upper left of the sewing machine 1 which abbreviate | omitted the pedestal part 3 and the arm part 4. FIG. 布送り装置10の左上方からの斜視図。The perspective view from the upper left of the cloth feeding apparatus. 布送り装置10の右上方からの斜視図。The perspective view from the upper right of the cloth feeding apparatus. 布保持体50の分解斜視図。The disassembled perspective view of the cloth holding body 50. FIG. シャフト68、ガイド部材69、レール部76の左側面図。The left view of the shaft 68, the guide member 69, and the rail part 76. FIG. 中央位置にある布保持体50の平面図。The top view of the cloth holding body 50 in a center position. 端部位置にある布保持体50の平面図。The top view of the cloth holding body 50 in an edge part position. 組み付けずれが起きた布保持体50の平面図。The top view of the cloth holding body 50 in which the assembly displacement has occurred. 組み付けずれが起きた枠支持部96、押え枠84の拡大平面図。The enlarged plan view of the frame support part 96 and the presser frame 84 in which the assembly displacement has occurred. 図10のI−I線矢視方向断面図。FIG. 11 is a cross-sectional view taken along the line II in FIG.

以下、本発明の一実施形態であるミシン1を、図面を参照して説明する。以下説明は、図1の、上方、下方、左斜め下方、右斜め上方、左斜め上方、右斜め下方を、夫々、ミシン1の上方、下方、前方、後方、左方、右方とする。X軸方向はミシン1の左右方向である。Y軸方向はミシン1の前後方向である。   Hereinafter, a sewing machine 1 according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the upper direction, the lower direction, the left diagonally downward direction, the right diagonally upward direction, the left diagonally upward direction, and the right diagonally downward direction in FIG. 1 are respectively referred to as the upward, downward, forward, backward, leftward, and rightward directions of the sewing machine 1. The X-axis direction is the left-right direction of the sewing machine 1. The Y-axis direction is the front-rear direction of the sewing machine 1.

ミシン1の構造について簡単に説明する。図1、図2に示す如く、ミシン1は、ベッド部2、脚柱部3、アーム部4、制御部(図示略)を備える。ベッド部2は前方部8と後方部9を備える。前方部8はミシン1の前方に位置し、後方部9はミシン1の後方に位置する。前方部8は作業台支持部18(図2参照)と収容部89を備える。作業台支持部18は収容部89の前壁から前方に突出して設ける。作業台支持部18は上面に作業台5を備える。作業台5は略中央に針板12(図1参照)を備える。針板12は略中央に針穴(図示略)を備える。作業台支持部18は内部に釜機構(図示略)を備える。脚柱部3は後方部9の上部に立設する。アーム部4は脚柱部3上部から前方に延設する。アーム部4は前端部に先端部7を備える。先端部7の下方に針板12の上面が対向する。先端部7は針棒(図示略)等を備える。針棒は下端に縫針(図示略)を装着する。針棒は、アーム部4内部の後側に設けたミシンモータ(図示略)と連結する。ミシンモータが駆動すると、縫針は上下動する。収容部89は、上側が開口する略直方体の箱状である。収容部89は下軸6(図4参照)、布送り装置10等を内部に収容する。作業台支持部18と収容部89の内部は連通する。下軸6は、前後方向に延び、前端部が釜機構と接続する。下軸6は、釜機構を駆動する。釜機構は、上下動する縫針と協働して布(図示略)に縫目を形成する。制御部は、ミシン1が縫製を行う為の縫製データを記憶する。   The structure of the sewing machine 1 will be briefly described. As shown in FIGS. 1 and 2, the sewing machine 1 includes a bed part 2, a pedestal part 3, an arm part 4, and a control part (not shown). The bed part 2 includes a front part 8 and a rear part 9. The front portion 8 is located in front of the sewing machine 1 and the rear portion 9 is located behind the sewing machine 1. The front part 8 includes a work table support part 18 (see FIG. 2) and a storage part 89. The worktable support portion 18 is provided so as to protrude forward from the front wall of the housing portion 89. The worktable support unit 18 includes the worktable 5 on the upper surface. The work table 5 is provided with a needle plate 12 (see FIG. 1) substantially in the center. The needle plate 12 is provided with a needle hole (not shown) at substantially the center. The worktable support unit 18 includes a shuttle mechanism (not shown) inside. The pedestal 3 is erected on the upper part of the rear part 9. The arm part 4 extends forward from the upper part of the pillar part 3. The arm portion 4 includes a tip portion 7 at the front end portion. The upper surface of the needle plate 12 faces the lower end portion 7. The tip portion 7 includes a needle bar (not shown). A needle bar (not shown) is attached to the lower end of the needle bar. The needle bar is connected to a sewing machine motor (not shown) provided on the rear side inside the arm portion 4. When the sewing machine motor is driven, the sewing needle moves up and down. The accommodating part 89 is a substantially rectangular parallelepiped box shape whose upper side opens. The accommodating portion 89 accommodates the lower shaft 6 (see FIG. 4), the cloth feeding device 10 and the like inside. The worktable support portion 18 and the interior of the accommodating portion 89 communicate with each other. The lower shaft 6 extends in the front-rear direction, and the front end portion is connected to the shuttle mechanism. The lower shaft 6 drives the shuttle mechanism. The shuttle mechanism forms a seam in a cloth (not shown) in cooperation with a vertically moving sewing needle. The control unit stores sewing data for the sewing machine 1 to perform sewing.

布送り装置10の概要を説明する。布送り装置10は布保持体50を備える。布保持体50は後述の押え枠84と挟み枠87の間に布(図示略)を挟んで作業台5上にて保持する。布保持体50は、左右方向及び前後方向に往復移動可能である。布送り装置10は、ミシンモータ(図示略)の駆動に同期して、布保持体50を左右方向及び前後方向に往復駆動する。   An outline of the cloth feeding device 10 will be described. The cloth feeding device 10 includes a cloth holding body 50. The cloth holding body 50 holds the cloth (not shown) on the work table 5 with a cloth (not shown) interposed between a presser frame 84 and a holding frame 87 which will be described later. The cloth holding body 50 can reciprocate in the left-right direction and the front-rear direction. The cloth feeding device 10 reciprocates the cloth holding body 50 in the left-right direction and the front-rear direction in synchronization with the drive of a sewing machine motor (not shown).

次に、布送り装置10の構造を説明する。図3〜図5に示す如く、布送り装置10は、移動支持機構20、X軸駆動機構30、Y軸駆動機構60、布保持体50を備える。移動支持機構20は、布保持体50を左右方向及び前後方向に往復移動可能に支持する機構である。X軸駆動機構30は、移動支持機構20を介して布保持体50を左右方向に往復駆動する機構である。Y軸駆動機構60は、移動支持機構20を介して布保持体50を前後方向に往復駆動する機構である。   Next, the structure of the cloth feeding device 10 will be described. As illustrated in FIGS. 3 to 5, the cloth feeding device 10 includes a movement support mechanism 20, an X-axis drive mechanism 30, a Y-axis drive mechanism 60, and a cloth holder 50. The movement support mechanism 20 is a mechanism that supports the cloth holder 50 so as to be capable of reciprocating in the left-right direction and the front-rear direction. The X-axis drive mechanism 30 is a mechanism that reciprocates the cloth holding body 50 in the left-right direction via the movement support mechanism 20. The Y-axis drive mechanism 60 is a mechanism that reciprocates the cloth holder 50 in the front-rear direction via the movement support mechanism 20.

移動支持機構20は、前側支持部材21、後側支持部材22、一対のX軸固定レール24,25、X軸ガイド部材26、X軸移動部材40、一対のY軸固定レール51,52、Y軸ガイド部材53(図5参照)、Y軸移動部材73(図5参照)等を備える。   The movement support mechanism 20 includes a front support member 21, a rear support member 22, a pair of X axis fixed rails 24 and 25, an X axis guide member 26, an X axis movement member 40, a pair of Y axis fixed rails 51 and 52, and Y. A shaft guide member 53 (see FIG. 5), a Y-axis moving member 73 (see FIG. 5), and the like are provided.

前側支持部材21と後側支持部材22は、収容部89(図1参照)の内側底面に固定する。前側支持部材21と後側支持部材22は、平面視で左右方向に長い略矩形状であり、前後方向に並ぶ。前側支持部材21と後側支持部材22は、夫々、挿通穴21A,22A(図4参照)を備える。挿通穴21A,22Aは、夫々、前側支持部材21及び後側支持部材22の左右方向中央部を前後方向に貫通する。挿通穴21A,22Aには下軸6が挿通する。   The front support member 21 and the rear support member 22 are fixed to the inner bottom surface of the accommodating portion 89 (see FIG. 1). The front support member 21 and the rear support member 22 have a substantially rectangular shape that is long in the left-right direction in plan view, and are arranged in the front-rear direction. The front support member 21 and the rear support member 22 include insertion holes 21A and 22A (see FIG. 4), respectively. The insertion holes 21 </ b> A and 22 </ b> A penetrate the front-side support member 21 and the rear-side support member 22 in the front-rear direction through the center portions in the left-right direction. The lower shaft 6 is inserted through the insertion holes 21A and 22A.

一対のX軸固定レール24,25は、側面視で略矩形状であり、左右方向に延びる。X軸固定レール24は前側支持部材21の上面に固定し、X軸固定レール25は後側支持部材22の上面に固定する。X軸ガイド部材26は、一対のX軸固定レール24,25の夫々に対して左右方向に往復移動可能に設ける。X軸移動部材40は、平面視略矩形状の板状部材であり、X軸ガイド部材26の上面に固定する。X軸ガイド部材26は、X軸移動部材40の前後、左右夫々の端部に対応する位置に設ける。   The pair of X-axis fixed rails 24 and 25 are substantially rectangular in a side view and extend in the left-right direction. The X-axis fixed rail 24 is fixed to the upper surface of the front support member 21, and the X-axis fixed rail 25 is fixed to the upper surface of the rear support member 22. The X-axis guide member 26 is provided so as to be capable of reciprocating in the left-right direction with respect to each of the pair of X-axis fixed rails 24 and 25. The X-axis moving member 40 is a plate-like member having a substantially rectangular shape in plan view, and is fixed to the upper surface of the X-axis guide member 26. The X-axis guide member 26 is provided at positions corresponding to the front and rear, and left and right ends of the X-axis moving member 40.

一対のY軸固定レール51,52は、X軸移動部材40の上面に固定する。一対のY軸固定レール51,52は、正面視略矩形状であり、前後方向に延びる。一対のY軸固定レール51,52は左右方向に並ぶ。Y軸ガイド部材53は、一対のY軸固定レール51,52の夫々に対して前後方向に往復移動可能に設ける。尚、図5において、Y軸固定レール51に設けたY軸ガイド部材53のみを図示している。Y軸移動部材73は、平面視略矩形状の板状部材であり、Y軸ガイド部材53の上面に固定する。Y軸ガイド部材53は、Y軸移動部材73の右端部、左端部に対応する位置に設ける。   The pair of Y-axis fixed rails 51 and 52 are fixed to the upper surface of the X-axis moving member 40. The pair of Y-axis fixed rails 51 and 52 has a substantially rectangular shape when viewed from the front, and extends in the front-rear direction. The pair of Y-axis fixed rails 51 and 52 are arranged in the left-right direction. The Y-axis guide member 53 is provided so as to be capable of reciprocating in the front-rear direction with respect to each of the pair of Y-axis fixed rails 51 and 52. In FIG. 5, only the Y-axis guide member 53 provided on the Y-axis fixed rail 51 is shown. The Y-axis moving member 73 is a plate-like member having a substantially rectangular shape in plan view, and is fixed to the upper surface of the Y-axis guide member 53. The Y-axis guide member 53 is provided at a position corresponding to the right end portion and the left end portion of the Y-axis moving member 73.

X軸駆動機構30は、左側回転軸34、ギア33、X軸モータ31、左側プーリ36、右側回転軸(図示略)、右側プーリ38、無端ベルト29等を備える。左側回転軸34は、前側支持部材21と後側支持部材22の左端部において、回転可能に軸支してある。左側回転軸34は前後方向に延びる。左側回転軸34の後端部は後側支持部材22よりも後方に突出し、収容部89の後方に延びる。ギア33は左側回転軸34の後端部に固定する。X軸モータ31は、左側回転軸34の右後方に設け、収容部89後面外側に固定する。X軸モータ31は、後方部9の左方に位置する。X軸モータ31の駆動軸32には、ギア(図示略)を固定する。駆動軸32に固定したギアとギア33は噛み合う。   The X-axis drive mechanism 30 includes a left rotation shaft 34, a gear 33, an X-axis motor 31, a left pulley 36, a right rotation shaft (not shown), a right pulley 38, an endless belt 29, and the like. The left rotation shaft 34 is rotatably supported at the left end portions of the front support member 21 and the rear support member 22. The left rotation shaft 34 extends in the front-rear direction. A rear end portion of the left rotation shaft 34 projects rearward from the rear support member 22 and extends rearward of the housing portion 89. The gear 33 is fixed to the rear end portion of the left rotation shaft 34. The X-axis motor 31 is provided on the right rear side of the left rotation shaft 34 and is fixed to the outside of the rear surface of the accommodating portion 89. The X-axis motor 31 is located to the left of the rear part 9. A gear (not shown) is fixed to the drive shaft 32 of the X-axis motor 31. The gear fixed to the drive shaft 32 and the gear 33 mesh with each other.

左側プーリ36(図5参照)は、左側回転軸34のうち一対のX軸固定レール24,25の間の位置に固定する。右側回転軸(図示略)は、前側支持部材21の右端部と後側支持部材22の右端部において、回転可能に軸支してある。右側プーリ38(図5参照)は、右側回転軸のうち一対のX軸固定レール24,25の間の位置に固定する。無端ベルト29は、左側プーリ36と右側プーリ38に架け渡す。無端ベルト29のうち、左側プーリ36の上部と右側プーリ38の上部の間に位置する上面は、X軸移動部材40に固定する。   The left pulley 36 (see FIG. 5) is fixed at a position between the pair of X axis fixed rails 24 and 25 on the left rotating shaft 34. The right rotation shaft (not shown) is rotatably supported at the right end portion of the front support member 21 and the right end portion of the rear support member 22. The right pulley 38 (see FIG. 5) is fixed at a position between the pair of X-axis fixed rails 24 and 25 on the right rotation shaft. The endless belt 29 is bridged between the left pulley 36 and the right pulley 38. The upper surface of the endless belt 29 located between the upper part of the left pulley 36 and the upper part of the right pulley 38 is fixed to the X-axis moving member 40.

図5、図6を参照し、布保持体50の構造を説明する。尚、図6においては、後述のレール部76(図7参照)及び挟み枠87(図5参照)の図示を省略している。図5に示す如く、布保持体50は、挟み枠87、固定部材70、保持部材90を備える。挟み枠87は、板状に形成し、基端部をY軸移動部材73の上面に固定する。挟み枠87は、Y軸移動部材73上面から水平方向に沿って前方へ延びる。挟み枠87は、先端部に枠部87Aを備える。枠部87Aは、平面視で略矩形状の枠体である。枠部87Aは、内側に、開口部87Bを形成する。開口部87Bは、平面視略矩形状である。   The structure of the cloth holding body 50 will be described with reference to FIGS. In FIG. 6, illustration of a rail portion 76 (see FIG. 7) and a sandwiching frame 87 (see FIG. 5) which will be described later is omitted. As shown in FIG. 5, the cloth holding body 50 includes a sandwiching frame 87, a fixing member 70, and a holding member 90. The sandwiching frame 87 is formed in a plate shape, and the base end portion is fixed to the upper surface of the Y-axis moving member 73. The sandwiching frame 87 extends forward from the upper surface of the Y-axis moving member 73 along the horizontal direction. The sandwiching frame 87 includes a frame portion 87A at the tip. The frame portion 87A is a substantially rectangular frame body in plan view. The frame portion 87A forms an opening 87B on the inner side. The opening 87B has a substantially rectangular shape in plan view.

固定部材70は、挟み枠87の基端部を挟んでY軸移動部材73の上面に固定する。図6に示す如く、固定部材70は、延設部74、レール部76(図7、図8参照)を備える。延設部74は左右方向に延びる。延設部74は、支持部72、右側延出部75、左側延出部71を備える。支持部72、右側延出部75、左側延出部71は一体的に形成する。支持部72は略直方体状である。支持部72は、Y軸移動部材73上面に固定し、挟み枠87(図5参照)の基端部の後方に設置する。支持部72の上面72Aは、水平方向と平行な平面状に形成する。上面72Aは、四つの締結穴42を備える。各締結穴42は、上面72Aの四隅に形成する。尚、図6では、四つの締結穴42のうち二つの締結穴42を図示している。   The fixing member 70 is fixed to the upper surface of the Y-axis moving member 73 with the proximal end portion of the holding frame 87 interposed therebetween. As shown in FIG. 6, the fixing member 70 includes an extending portion 74 and a rail portion 76 (see FIGS. 7 and 8). The extending portion 74 extends in the left-right direction. The extension part 74 includes a support part 72, a right extension part 75, and a left extension part 71. The support part 72, the right extension part 75, and the left extension part 71 are integrally formed. The support part 72 has a substantially rectangular parallelepiped shape. The support portion 72 is fixed to the upper surface of the Y-axis moving member 73 and is installed behind the proximal end portion of the sandwiching frame 87 (see FIG. 5). The upper surface 72A of the support portion 72 is formed in a planar shape parallel to the horizontal direction. The upper surface 72A includes four fastening holes 42. The fastening holes 42 are formed at the four corners of the upper surface 72A. In FIG. 6, two fastening holes 42 among the four fastening holes 42 are illustrated.

右側延出部75は支持部72の右面から右方へ延びる。左側延出部71は支持部72の左面から左方へ延びる。右側延出部75、左側延出部71は、支持部72に対して互いに対称な形状である。説明の重複を避ける為、以下、右側延出部75と左側延出部71のうち右側延出部75の構造のみを説明する。   The right extension 75 extends from the right surface of the support 72 to the right. The left extension 71 extends leftward from the left surface of the support 72. The right extension 75 and the left extension 71 are symmetrical with respect to the support 72. In order to avoid overlapping description, only the structure of the right extension 75 of the right extension 75 and the left extension 71 will be described below.

右側延出部75は、当接部75A、上側突出部75B、下側突出部75Cを備える。当接部75Aは、正面視で左右方向に長い略矩形状の板状部材である。上側突出部75Bは、当接部75Aの上端部から前方へ突出し、下側突出部75Cは、当接部75Aの下端部から前方へ突出する。上側突出部75Bは支持部72の上面72Aよりも下側に位置し、下側突出部75Cは支持部72の下面よりも上側に位置する。上側突出部75Bと下側突出部75Cは、支持部72側に向かう程、前方へ突出する。   The right extending portion 75 includes a contact portion 75A, an upper protruding portion 75B, and a lower protruding portion 75C. The contact portion 75A is a substantially rectangular plate-like member that is long in the left-right direction when viewed from the front. The upper projecting portion 75B projects forward from the upper end portion of the contact portion 75A, and the lower projecting portion 75C projects forward from the lower end portion of the contact portion 75A. The upper protruding portion 75B is positioned below the upper surface 72A of the support portion 72, and the lower protruding portion 75C is positioned above the lower surface of the support portion 72. The upper protruding portion 75B and the lower protruding portion 75C protrude forward as they move toward the support portion 72 side.

ここで、右側延出部75の当接部75Aの左側後面は、支持部72の後面と面一である。当接部75Aの左側後面と支持部72の後面は、当接部75Aの右側後面よりも前方に位置する。当接部75Aの右側後面は左側後面よりも後方へ突出する。左側延出部71は、支持部72に対して右側延出部75と対称な形状である。故に、延設部74は、左側延出部71、支持部72、右側延出部75によって形成する延設部74後面の左右方向中央部に、前方に凹む凹部74Aを備える。   Here, the left rear surface of the contact portion 75 </ b> A of the right extending portion 75 is flush with the rear surface of the support portion 72. The left rear surface of the contact portion 75A and the rear surface of the support portion 72 are positioned in front of the right rear surface of the contact portion 75A. The right rear surface of the contact portion 75A protrudes rearward from the left rear surface. The left extension 71 is symmetrical to the right extension 75 with respect to the support 72. Therefore, the extended portion 74 includes a concave portion 74 </ b> A that is recessed forward at the center in the left-right direction of the rear surface of the extended portion 74 formed by the left extended portion 71, the support portion 72, and the right extended portion 75.

図7に示す如く、レール部76は、側面視略矩形状であり、左右方向延びる。レール部76は、延設部74の後側に配置する(図8参照)。レール部76は、延設部74側の端面として前面76A(図7参照)を備える。前面76Aは、左右方向及び上下方向に延びる平面状である。前面76Aは、右側延出部75の右側後面と、左側延出部71の左側後面に固定する。前面76Aの左右方向中央部は、凹部74Aの後方に位置する。レール部76の左右方向中央部と、延設部74の左右方向中央部は、凹部74Aにより隙間を有する。即ち、レール部76の左右方向中央部と、延設部74の左右方向中央部は、隙間を挟んで対向する。   As shown in FIG. 7, the rail portion 76 has a substantially rectangular shape in side view and extends in the left-right direction. The rail portion 76 is disposed on the rear side of the extending portion 74 (see FIG. 8). The rail portion 76 includes a front surface 76A (see FIG. 7) as an end surface on the extending portion 74 side. The front surface 76A has a planar shape extending in the left-right direction and the up-down direction. The front surface 76 </ b> A is fixed to the right rear surface of the right extending portion 75 and the left rear surface of the left extending portion 71. The central part in the left-right direction of the front surface 76A is located behind the recess 74A. The center part in the left-right direction of the rail part 76 and the center part in the left-right direction of the extending part 74 have a gap by the recess 74A. That is, the central portion in the left-right direction of the rail portion 76 and the central portion in the left-right direction of the extending portion 74 are opposed to each other with a gap therebetween.

レール部76は、上面と下面の夫々に溝部76Bを備える。溝部76Bは、側面視でレール部76の上面及び下面からレール部76の上下方向中央部側へ湾曲して凹む。溝部76Bは左右方向に沿って延びる。尚、図4、図5、図8〜図10では、溝部76Bの図示を省略している。   The rail portion 76 includes a groove portion 76B on each of the upper surface and the lower surface. The groove portion 76B is curved and dented from the upper surface and the lower surface of the rail portion 76 toward the central portion in the vertical direction of the rail portion 76 in a side view. The groove portion 76B extends along the left-right direction. In addition, illustration of the groove part 76B is abbreviate | omitted in FIG.4, FIG.5, FIG.8-10.

図6に示す如く、保持部材90は、アーム部81、設置部92,94(図4、図6参照)を備える。アーム部81は、支持部72の上面72Aから、上方に湾曲しつつ前方へ突出する。設置部92,94は、支持部72の上面72Aに設置する。設置部92,94は水平方向と平行な板状に形成する。設置部92はアーム部81の基端部の右側部に形成し(図6参照)、設置部94は左側部に形成する(図4参照)。設置部92,94は、夫々、二つの貫通穴41を備える。設置部94の二つの貫通穴は図示を省略する。各貫通穴41は、設置部92,94のうち、上面72Aの各締結穴42と対向する部位に形成する。各貫通穴41の内径は、各締結穴42の内径よりも大きい。   As shown in FIG. 6, the holding member 90 includes an arm portion 81 and installation portions 92 and 94 (see FIGS. 4 and 6). The arm portion 81 protrudes forward from the upper surface 72A of the support portion 72 while being curved upward. The installation parts 92 and 94 are installed on the upper surface 72 </ b> A of the support part 72. The installation portions 92 and 94 are formed in a plate shape parallel to the horizontal direction. The installation part 92 is formed on the right side of the base end part of the arm part 81 (see FIG. 6), and the installation part 94 is formed on the left side (see FIG. 4). The installation portions 92 and 94 each include two through holes 41. The two through holes of the installation portion 94 are not shown. Each through hole 41 is formed in a portion of the installation portions 92 and 94 facing each fastening hole 42 on the upper surface 72A. The inner diameter of each through hole 41 is larger than the inner diameter of each fastening hole 42.

設置部92,94は、四つの螺子部材46、四つのバネ座金48、四つの平座金49によって支持部72の上面72Aに着脱可能に固定する。螺子部材46は、軸部46A、頭部46Bを有する。軸部46Aは、バネ座金48と、該バネ座金48の下方に位置する平座金49とに挿通する。軸部46Aの外径は、締結穴42の内径よりも僅かに大きく、貫通穴41の内径よりも小さい。軸部46Aは、貫通穴41に挿通し締結穴42に締結する。頭部46Bは、軸部46Aの上端部に設ける。換言すると、頭部46Bは、軸部46Aのうち設置部92に対して支持部72と反対側の端部に設ける。頭部46Bは、貫通穴41の内径よりも大きい。頭部46Bは、バネ座金48及び平座金49を介して設置部92,94を下方に押圧する。即ち、頭部46Bが設置部92,94を上面72Aとの間に挟んで固定する。故に、設置部92,94は、支持部72の上面72Aに着脱可能に固定する。ここで、頭部46Bと上面72Aの間に平座金49を設けることで、螺子部材46が強固に締結していても、頭部46Bが押圧する上面72Aは損傷しにくい。頭部46Bと上面72Aの間にバネ座金48を設けることで、締結した螺子部材46は緩みにくい。バネ座金48と平座金49は有さなくてもよい。尚、図6においては、図面を判り易くする為に、実際よりも内径が小さい締結穴42を図示している(図12も同様)。   The installation portions 92 and 94 are detachably fixed to the upper surface 72A of the support portion 72 by four screw members 46, four spring washers 48, and four flat washers 49. The screw member 46 has a shaft portion 46A and a head portion 46B. The shaft portion 46 </ b> A is inserted into a spring washer 48 and a flat washer 49 positioned below the spring washer 48. The outer diameter of the shaft portion 46 </ b> A is slightly larger than the inner diameter of the fastening hole 42 and smaller than the inner diameter of the through hole 41. The shaft portion 46 </ b> A is inserted into the through hole 41 and fastened to the fastening hole 42. The head portion 46B is provided at the upper end portion of the shaft portion 46A. In other words, the head portion 46B is provided at the end of the shaft portion 46A opposite to the support portion 72 with respect to the installation portion 92. The head 46 </ b> B is larger than the inner diameter of the through hole 41. The head 46 </ b> B presses the installation portions 92 and 94 downward via the spring washer 48 and the flat washer 49. That is, the head portion 46B fixes the installation portions 92 and 94 between the upper surface 72A. Therefore, the installation parts 92 and 94 are detachably fixed to the upper surface 72A of the support part 72. Here, by providing the flat washer 49 between the head 46B and the upper surface 72A, even if the screw member 46 is firmly fastened, the upper surface 72A pressed by the head 46B is hardly damaged. By providing the spring washer 48 between the head part 46B and the upper surface 72A, the fastened screw member 46 is difficult to loosen. The spring washer 48 and the flat washer 49 may not be provided. In FIG. 6, in order to make the drawing easy to understand, a fastening hole 42 having an inner diameter smaller than the actual diameter is shown (the same applies to FIG. 12).

アーム部81は、先端部に枠支持部96を備える。枠支持部96は正面視略矩形状の板状部材である。図5に示す如く、枠支持部96は前面に二つのレール部82を有する。二つのレール部82は上下方向に延びる。二つのレール部82には、夫々、側面視L字状のL字連結部83を上下方向に移動可能に装着する。二つのL字連結部83は押え枠84を保持する。押え枠84は平面視略矩形状の枠体である。押え枠84の後端部はL字連結部83下面と連結する。故に押え枠84は、L字連結部83と共に上下動可能である。押え枠84は、内側に、開口部84Aを形成する。開口部84Aは、平面視略矩形状であり、挟み枠87の開口部87Bと対向する。開口部84Aの大きさは、開口部87Bの大きさと略同一である。作業者は、挟み枠87の上面に布(図示略)を配置し、押え枠84を下降させ挟み枠87との間で布を挟み込む。故に、布保持体50は布を保持する。   The arm part 81 includes a frame support part 96 at the tip part. The frame support portion 96 is a plate-like member having a substantially rectangular shape when viewed from the front. As shown in FIG. 5, the frame support portion 96 has two rail portions 82 on the front surface. The two rail portions 82 extend in the vertical direction. An L-shaped connecting portion 83 that is L-shaped in a side view is attached to each of the two rail portions 82 so as to be movable in the vertical direction. The two L-shaped connecting portions 83 hold the presser frame 84. The presser frame 84 is a substantially rectangular frame in plan view. The rear end portion of the presser frame 84 is connected to the lower surface of the L-shaped connecting portion 83. Therefore, the presser frame 84 can move up and down together with the L-shaped connecting portion 83. The presser frame 84 forms an opening 84A on the inner side. The opening 84 </ b> A has a substantially rectangular shape in plan view, and faces the opening 87 </ b> B of the sandwiching frame 87. The size of the opening 84A is substantially the same as the size of the opening 87B. The operator places a cloth (not shown) on the upper surface of the sandwiching frame 87, lowers the presser frame 84, and sandwiches the cloth with the sandwiching frame 87. Therefore, the cloth holder 50 holds the cloth.

図3〜図5に示す如く、Y軸駆動機構60は、Y軸モータ65、ギア(図示略)、シャフト68、ガイド部材69等を備える。Y軸モータ65は、X軸モータ31の右上方に設け、ベッド部2の後方部9上方に位置する。Y軸モータ65の駆動軸66(図5参照)は左右方向に延びる。ギア(図示略)は駆動軸66に固定する。シャフト68は、駆動軸66の下側を前後方向に延びる。シャフト68は、上面に、前後方向に延びる歯部67を備える。歯部67は、駆動軸66に固定したギア(図示略)と噛み合う。   3 to 5, the Y-axis drive mechanism 60 includes a Y-axis motor 65, a gear (not shown), a shaft 68, a guide member 69, and the like. The Y-axis motor 65 is provided on the upper right side of the X-axis motor 31 and is located above the rear part 9 of the bed part 2. A drive shaft 66 (see FIG. 5) of the Y-axis motor 65 extends in the left-right direction. A gear (not shown) is fixed to the drive shaft 66. The shaft 68 extends below the drive shaft 66 in the front-rear direction. The shaft 68 includes a tooth portion 67 extending in the front-rear direction on the upper surface. The tooth portion 67 meshes with a gear (not shown) fixed to the drive shaft 66.

ガイド部材69はシャフト68の前端部に固定する。ガイド部材69は、レール部76の後側に配置する。図7に示す如く、ガイド部材69は、左側面視略C字状であり、左右方向に延びる。ガイド部材69は、対向部61、一対の挟持部62を備える。対向部61は、背面視略矩形状であり、レール部76の後面と後方から対向する。対向部61は、シャフト68の前端部に固定する。一対の挟持部62は、夫々、対向部61の上端部及び下端部から前方へ突出する。一対の挟持部62は、側面視略矩形状である。一対の挟持部62は、夫々、前後方向中央部に、互いに近接する方向に向けて突出する凸部62Aを備える。   The guide member 69 is fixed to the front end portion of the shaft 68. The guide member 69 is disposed on the rear side of the rail portion 76. As shown in FIG. 7, the guide member 69 is substantially C-shaped when viewed from the left side and extends in the left-right direction. The guide member 69 includes a facing portion 61 and a pair of clamping portions 62. The facing portion 61 has a substantially rectangular shape when viewed from the back, and faces the rear surface of the rail portion 76 from the rear. The facing portion 61 is fixed to the front end portion of the shaft 68. The pair of sandwiching portions 62 protrude forward from the upper end portion and the lower end portion of the facing portion 61, respectively. The pair of sandwiching portions 62 has a substantially rectangular shape in side view. Each of the pair of sandwiching portions 62 includes a convex portion 62 </ b> A that protrudes toward a direction close to each other at the center portion in the front-rear direction.

ガイド部材69は、一対の挟持部62の基端部のうち、対向部61の上下方向中央部側の部位に、夫々、左右方向に並ぶ複数のボール56を保持する。ガイド部材69は、各凸部62Aの先端部に、左右方向に並ぶ複数のボール59を保持する。複数のボール56,59は同じ形状であり、回転可能に埋設する。   The guide member 69 holds a plurality of balls 56 arranged in the left-right direction at a portion of the base end portion of the pair of sandwiching portions 62 on the center portion side of the facing portion 61 in the vertical direction. The guide member 69 holds a plurality of balls 59 arranged in the left-right direction at the tip of each convex portion 62A. The plurality of balls 56 and 59 have the same shape and are embedded in a rotatable manner.

ガイド部材69は、各凸部62Aがレール部76の各溝部76Bに進入することで複数のボール59が各凸部62Aに当接し、複数のボール56がレール部76の後上方の角部及び後下方の角部に当接する。故にガイド部材69はレール部76と連結する。一対の挟持部62は、レール部76を左右方向に移動可能に案内する。レール部76は、複数のボール56,59が回転することで、ガイド部材69に対して滑らかに左右方向に移動可能である。   In the guide member 69, each convex portion 62A enters each groove portion 76B of the rail portion 76, so that the plurality of balls 59 abut on each convex portion 62A, and the plurality of balls 56 are arranged at the corners on the rear upper side of the rail portion 76 and It contacts the rear lower corner. Therefore, the guide member 69 is connected to the rail portion 76. A pair of clamping part 62 guides the rail part 76 so that a movement to the left-right direction is possible. The rail portion 76 can move smoothly in the left-right direction with respect to the guide member 69 by rotation of the plurality of balls 56 and 59.

図4、図5を参照し、布送り装置10の動作の概要を説明する。先ず、布送り装置10が布(図示略)を左右方向に往復移動する動作を説明する。X軸モータ31が駆動すると、駆動軸32は回動し、駆動軸32に固定したギア(図示略)とギア33の噛合によって左側回転軸34は回動する。左側回転軸34が回動するので左側プーリ36は回動する。左側プーリ36が回動すると、右側プーリ38(図5参照)が回動し、無端ベルト29は側面視で時計回り及び反時計回りに走行する。無端ベルト29の走行に伴い、X軸移動部材40は一対のX軸固定レール24,25に沿って左右に往復移動する。故に、Y軸移動部材73(図5参照)及び布保持体50は、左右方向に往復移動する。布保持体50が左右方向に往復移動する場合、レール部76はガイド部材69に対して左右方向に往復移動する(図8、図9参照)。即ち、布保持体50が左右方向に往復移動する場合、レール部76のガイド部材69に対する左右方向の相対位置が変位する。以下、レール部76の左端部がガイド部材69と接触する布保持体50の左右方向の位置を端部位置といい(図8参照)、レール部76の左右方向中央部がガイド部材69と接触する布保持体50の左右方向の位置を中央位置という(図9参照)。端部位置は、レール部76の左端部がガイド部材69と接触する布保持体50の左右方向の位置を称すが、レール部76の右端部がガイド部材69と接触する位置についても同様である。   An outline of the operation of the cloth feeding device 10 will be described with reference to FIGS. 4 and 5. First, the operation of the cloth feeding device 10 reciprocating the cloth (not shown) in the left-right direction will be described. When the X-axis motor 31 is driven, the drive shaft 32 is rotated, and the left rotation shaft 34 is rotated by meshing between a gear (not shown) fixed to the drive shaft 32 and the gear 33. Since the left rotation shaft 34 rotates, the left pulley 36 rotates. When the left pulley 36 rotates, the right pulley 38 (see FIG. 5) rotates, and the endless belt 29 travels clockwise and counterclockwise in a side view. As the endless belt 29 travels, the X-axis moving member 40 reciprocates left and right along the pair of X-axis fixed rails 24 and 25. Therefore, the Y-axis moving member 73 (see FIG. 5) and the cloth holding body 50 reciprocate in the left-right direction. When the cloth holding body 50 reciprocates in the left-right direction, the rail portion 76 reciprocates in the left-right direction with respect to the guide member 69 (see FIGS. 8 and 9). That is, when the cloth holder 50 reciprocates in the left-right direction, the relative position in the left-right direction of the rail portion 76 with respect to the guide member 69 is displaced. Hereinafter, the position in the left-right direction of the cloth holding body 50 where the left end portion of the rail portion 76 contacts the guide member 69 is referred to as an end position (see FIG. 8), and the center portion in the left-right direction of the rail portion 76 contacts the guide member 69. The position in the left-right direction of the cloth holding body 50 is referred to as the center position (see FIG. 9). The end position refers to the position in the left-right direction of the cloth holding body 50 where the left end portion of the rail portion 76 contacts the guide member 69, but the same applies to the position where the right end portion of the rail portion 76 contacts the guide member 69. .

布送り装置10が布を前後方向に往復移動する動作を説明する。Y軸モータ65が駆動すると、駆動軸66(図5参照)が回動する。駆動軸66に固定したギア(図示略)とシャフト68の歯部67の噛合によって、シャフト68は前後方向に往復駆動する。往復駆動するシャフト68は、ガイド部材69を介してレール部76を前後方向に往復駆動する。故に布保持体50は、Y軸移動部材73(図5参照)と共に前後方向に往復移動する。該場合、Y軸移動部材73は、一対のY軸固定レール51,52に沿って、X軸移動部材40に対して前後に往復移動する。   An operation in which the cloth feeding device 10 reciprocates the cloth in the front-rear direction will be described. When the Y-axis motor 65 is driven, the drive shaft 66 (see FIG. 5) rotates. The shaft 68 is driven to reciprocate in the front-rear direction by the meshing of a gear (not shown) fixed to the drive shaft 66 and the tooth portion 67 of the shaft 68. The reciprocating shaft 68 reciprocates the rail portion 76 in the front-rear direction via the guide member 69. Therefore, the cloth holder 50 reciprocates in the front-rear direction together with the Y-axis moving member 73 (see FIG. 5). In this case, the Y-axis moving member 73 reciprocates back and forth with respect to the X-axis moving member 40 along the pair of Y-axis fixed rails 51 and 52.

布送り装置10は、ミシンモータ(図示略)の駆動に同期してX軸モータ31及びY軸モータ65を間欠的に駆動する。故に、布保持体50は、左右方向及び前後方向に沿った移動と停止を短時間の間に繰り返す。布送り装置10は、作業台5上にて押え枠84と挟み枠87で保持した布を、縫針の上下動に同期して左右方向及び前後方向に間欠的に往復移動する。故に、ミシン1は所定の縫目を布に形成する。   The cloth feeder 10 intermittently drives the X-axis motor 31 and the Y-axis motor 65 in synchronization with the drive of a sewing machine motor (not shown). Therefore, the cloth holding body 50 repeats the movement and stop along the left-right direction and the front-rear direction in a short time. The cloth feeder 10 intermittently reciprocates the cloth held by the presser frame 84 and the sandwiching frame 87 on the work table 5 in the left-right direction and the front-rear direction in synchronization with the vertical movement of the sewing needle. Therefore, the sewing machine 1 forms predetermined stitches on the cloth.

図8、図9を参照し、布保持体50が端部位置に位置する場合と中央位置に位置する場合における、固定部材70の前後方向に対する剛性の違いを説明する。以下の説明では、レール部76の左右方向中央部を中央部76Cといい、レール部76の左端部を左端部76Dという。尚、図8、図9においては、二つのレール部82、二つのL字連結部83、押え枠84、挟み枠87の図示を省略している。   With reference to FIG. 8, FIG. 9, the difference in the rigidity with respect to the front-back direction of the fixing member 70 in the case where the cloth holding body 50 is positioned at the end position and the center position will be described. In the following description, the central portion in the left-right direction of the rail portion 76 is referred to as a central portion 76C, and the left end portion of the rail portion 76 is referred to as a left end portion 76D. In FIG. 8 and FIG. 9, the two rail portions 82, the two L-shaped connecting portions 83, the presser frame 84, and the sandwiching frame 87 are not shown.

図8に示す如く、布保持体50が端部位置に位置する場合、固定部材70の左右方向中央部に設けたアーム部81に対して、シャフト68が左側にずれる。故に、シャフト68が、レール部76の左端部76Dを前後方向(矢印A方向)に往復駆動すると、延設部74の中央部は、レール部76の左端部76Dを支点として前後方向に撓む。   As shown in FIG. 8, when the cloth holding body 50 is located at the end position, the shaft 68 is shifted to the left with respect to the arm portion 81 provided at the center portion in the left-right direction of the fixing member 70. Therefore, when the shaft 68 reciprocates the left end portion 76D of the rail portion 76 in the front-rear direction (arrow A direction), the central portion of the extending portion 74 bends in the front-rear direction using the left end portion 76D of the rail portion 76 as a fulcrum. .

図9に示す如く、布保持体50が中央位置に位置する場合、シャフト68がレール部76の中央部76Cを前後方向(矢印B方向)に往復駆動すると、延設部74の左右方向中央部は、両端部を支点として前後方向に撓む。延設部74の左右方向中央部の撓み量は、延設部74の中央部とレール部76の中央部76Cが隙間なく接触している状態(凹部74Aを有さない状態)と比べて、大きくなる。   As shown in FIG. 9, when the cloth holding body 50 is located at the center position, when the shaft 68 reciprocates the center portion 76C of the rail portion 76 in the front-rear direction (arrow B direction), the center portion in the left-right direction of the extending portion 74 is used. Bends in the front-rear direction with both ends as fulcrums. The amount of bending of the central portion of the extending portion 74 in the left-right direction is compared to the state in which the central portion of the extending portion 74 and the central portion 76C of the rail portion 76 are in contact with no gap (the state having no concave portion 74A). growing.

布保持体50が端部位置から中央位置まで移動すると、シャフト68とアーム部81が同一直線上に位置するので、固定部材70の前後方向に対する剛性は上昇する。しかしながら、レール部76の中央部76Cと延設部74の中央部が隙間を空けて対向しているので、固定部材70の前後方向に対する剛性の上昇量は低減する。即ち、布保持体50の左右方向における位置が変位しても、固定部材70の前後方向に対する剛性は変化しにくい。   When the cloth holding body 50 moves from the end position to the center position, the shaft 68 and the arm portion 81 are positioned on the same straight line, so that the rigidity of the fixing member 70 in the front-rear direction increases. However, since the central portion 76C of the rail portion 76 and the central portion of the extending portion 74 are opposed to each other with a gap, the amount of increase in the rigidity of the fixing member 70 in the front-rear direction is reduced. That is, even if the position of the cloth holding body 50 in the left-right direction is displaced, the rigidity of the fixing member 70 in the front-rear direction is unlikely to change.

布送り装置10は、ミシン1の制御部(図示略)が記憶する縫製データに則って、X軸モータ31、Y軸モータ65を間欠的に駆動する。Y軸モータ65が駆動することで、シャフト68は、固定部材70を間欠的に往復駆動する。布保持体50は、前後方向の移動と停止を短時間の間に繰り返す。該場合、固定部材70に慣性力が作用する。延設部74の左右方向中央部が前後方向に撓み、保持部材90が保持する布が振れる。故に、保持部材90が保持する布が理想的な位置で停止せず、縫いずれが発生する可能性がある。しかしながら、本実施形態においては、固定部材70の前後方向に対する剛性が、布保持体50の左右方向の位置が変位しても、ばらつきにくいので、延設部74の左右方向中央部の撓み量は安定化する。故に、延設部74の左右方向中央部が撓むことによる、保持部材90の前後方向の振れ量が安定化する。該振れ量が安定化するので、布が実際に停止する位置と理想的な停止位置とのずれ量が安定化する。故に、該ずれ量に基づくずれの補正が容易である。ミシン1の作業者が、該ずれ量に基づく所定の補正値を保持しておけば、ミシン1は縫いずれの発生を容易に抑制できる。   The cloth feeding device 10 intermittently drives the X-axis motor 31 and the Y-axis motor 65 in accordance with sewing data stored by a control unit (not shown) of the sewing machine 1. When the Y-axis motor 65 is driven, the shaft 68 intermittently reciprocates the fixed member 70. The cloth holder 50 repeats the movement and stop in the front-rear direction in a short time. In this case, an inertial force acts on the fixing member 70. The central part in the left-right direction of the extension part 74 is bent in the front-rear direction, and the cloth held by the holding member 90 swings. Therefore, the cloth held by the holding member 90 does not stop at an ideal position, and any sewing may occur. However, in this embodiment, the rigidity of the fixing member 70 in the front-rear direction is less likely to vary even if the position of the cloth holder 50 in the left-right direction is displaced. Stabilize. Therefore, the deflection amount in the front-rear direction of the holding member 90 due to the bending of the central portion in the left-right direction of the extending portion 74 is stabilized. Since the shake amount is stabilized, the deviation amount between the position where the cloth actually stops and the ideal stop position is stabilized. Therefore, the correction of the deviation based on the deviation amount is easy. If the operator of the sewing machine 1 holds a predetermined correction value based on the amount of deviation, the sewing machine 1 can easily suppress any occurrence of sewing.

次に、図10〜図12を参照し、保持部材90の固定部材70に対する固定位置の調整方法を説明する。図10、図11に示す如く、布保持体50を構成する各種部材の寸法誤差、及び組み付け誤差等によって、布保持体50をY軸移動部材73(図5参照)に固定し且つガイド部材69と連結する場合、枠支持部96、押え枠84が適正な位置からずれた状態となる場合がある。図11では、枠支持部96、押え枠84が適正な位置の状態を二点鎖線で示し、適正な位置からずれた状態を実線で示す。該場合、布の移動範囲が理想的な範囲からずれる。   Next, a method for adjusting the fixing position of the holding member 90 with respect to the fixing member 70 will be described with reference to FIGS. As shown in FIGS. 10 and 11, the cloth holder 50 is fixed to the Y-axis moving member 73 (see FIG. 5) and the guide member 69 due to dimensional errors and assembly errors of various members constituting the cloth holder 50. In some cases, the frame support portion 96 and the presser frame 84 may be shifted from proper positions. In FIG. 11, a state where the frame support portion 96 and the presser frame 84 are at appropriate positions is indicated by a two-dot chain line, and a state where the frame support portion 96 and the presser frame 84 are displaced from the appropriate positions is indicated by a solid line. In this case, the movement range of the cloth deviates from the ideal range.

以下、布保持体50のアーム部81が、前後方向に延びる適正な姿勢ではなく、固定部材70から右斜め前方に延びる姿勢で、布保持体50をY軸移動部材73(図5参照)及びガイド部材69に組み付けた場合を例に説明する。該場合、枠支持部96は適正な位置から右側にずれる。   Hereinafter, the cloth holding body 50 is moved to the Y-axis moving member 73 (see FIG. 5) in a posture in which the arm portion 81 of the cloth holding body 50 is not in an appropriate posture extending in the front-rear direction but in a posture extending diagonally right forward from the fixing member 70. The case where it is assembled to the guide member 69 will be described as an example. In this case, the frame support portion 96 is shifted to the right side from an appropriate position.

ミシン1の作業者は、四つの螺子部材46を緩める。図12に示す如く、頭部46Bは、バネ座金48から上方に離間する。保持部材90は、貫通穴41と軸部46Aの隙間分、移動可能となる。図10、図11に示す如く、作業者は、保持部材90を固定部材70に対して平面視で時計回り(矢印C方向)に水平方向に沿って回転する。保持部材90は、支持部72の上面72A(図6参照)に対して摺動しながら回転する。枠支持部96、押え枠84は適正な位置(図11の二点鎖線)まで移動する。作業者が四つの螺子部材46を再び締め付けて、保持部材90を固定部材70に固定する。故に作業者は、保持部材90の固定部材70に対する固定位置を水平方向に調整できる。布送り装置10が移動する布の範囲は、理想的な移動範囲と一致する。   The operator of the sewing machine 1 loosens the four screw members 46. As shown in FIG. 12, the head 46 </ b> B is spaced upward from the spring washer 48. The holding member 90 is movable by the gap between the through hole 41 and the shaft portion 46A. As shown in FIGS. 10 and 11, the operator rotates the holding member 90 clockwise (in the direction of arrow C) in the horizontal direction with respect to the fixed member 70 in a plan view. The holding member 90 rotates while sliding with respect to the upper surface 72 </ b> A (see FIG. 6) of the support portion 72. The frame support portion 96 and the presser frame 84 move to appropriate positions (two-dot chain lines in FIG. 11). An operator fastens the four screw members 46 again to fix the holding member 90 to the fixing member 70. Therefore, the operator can adjust the fixing position of the holding member 90 with respect to the fixing member 70 in the horizontal direction. The range of the cloth that the cloth feeding device 10 moves coincides with the ideal movement range.

上記説明では、保持部材90のアーム部81が前後方向に対して斜めに延びる為、作業者が保持部材90を回転する例を示したが、保持部材90の位置が理想的な位置から前後方向及び左右方向にずれた場合も同様である。即ち、作業者は、四つの螺子部材46を緩めた後、保持部材90を左右方向及び前後方向に移動すればよい。作業者は保持部材90の固定位置を水平方向に調整できる。   In the above description, since the arm portion 81 of the holding member 90 extends obliquely with respect to the front-rear direction, the example in which the operator rotates the holding member 90 has been described. However, the position of the holding member 90 is changed from the ideal position to the front-rear direction. The same applies to the case of shifting in the left-right direction. That is, the operator may move the holding member 90 in the left-right direction and the front-rear direction after loosening the four screw members 46. The operator can adjust the fixing position of the holding member 90 in the horizontal direction.

以上、説明したように、ミシン1の作業者は、四つの螺子部材46を緩めて、固定部材70に対する保持部材90の固定位置を水平方向に調整する。即ち、布保持体50が四つの螺子部材46、四つの貫通穴41、四つの締結穴42を備えることで、固定部材70に対する保持部材90の固定位置は水平方向に調整可能である。故に、布保持体50がY軸移動部材73に固定し且つガイド部材69と連結していても、保持部材90が保持する布の移動範囲は調整可能となる。故にミシン1は、布保持体50を構成する部材の寸法誤差、該部材同士の組み付誤差等によるミシン1の個体差によって、布の移動範囲がばらつくことを抑止できる。   As described above, the operator of the sewing machine 1 loosens the four screw members 46 and adjusts the fixing position of the holding member 90 with respect to the fixing member 70 in the horizontal direction. That is, since the cloth holding body 50 includes the four screw members 46, the four through holes 41, and the four fastening holes 42, the fixing position of the holding member 90 with respect to the fixing member 70 can be adjusted in the horizontal direction. Therefore, even if the cloth holding body 50 is fixed to the Y-axis moving member 73 and connected to the guide member 69, the movement range of the cloth held by the holding member 90 can be adjusted. Therefore, the sewing machine 1 can suppress variation in the movement range of the cloth due to individual differences of the sewing machine 1 due to dimensional errors of members constituting the cloth holder 50, assembly errors between the members, and the like.

また、保持部材90は、固定部材70の支持部72の上面72Aに設置している。ミシン1は、保持部材90が固定部材70の前方に位置する場合と比べて、大型化することなく、保持部材90の前後方向の長さを長くできる。故に、ミシン1は、大型化を抑制しつつ、保持部材90の前後方向の長さを確保できる。   Further, the holding member 90 is installed on the upper surface 72 </ b> A of the support portion 72 of the fixing member 70. The sewing machine 1 can increase the length of the holding member 90 in the front-rear direction without increasing the size as compared with the case where the holding member 90 is positioned in front of the fixing member 70. Therefore, the sewing machine 1 can ensure the length of the holding member 90 in the front-rear direction while suppressing an increase in size.

また、上面72Aは、水平方向と平行な平面状である。作業者が四つの螺子部材46を緩めた場合、保持部材90は上面72Aと摺動し易い。故にミシン1は、固定部材70に対する保持部材90の固定位置の調整を容易化できる。   Further, the upper surface 72A has a planar shape parallel to the horizontal direction. When the operator loosens the four screw members 46, the holding member 90 easily slides on the upper surface 72A. Therefore, the sewing machine 1 can easily adjust the fixing position of the holding member 90 with respect to the fixing member 70.

また、ミシン1の作業者は、四つの螺子部材46を緩めれば、軸部46Aと貫通穴41の隙間分、保持部材90を水平方向に移動できる。作業者は、四つの螺子部材46を再び締結し、保持部材90を適正な位置で固定部材70に固定できる。即ち、作業者は四つの螺子部材46を緩めて、保持部材90を水平方向に移動した後、再び四つの螺子部材46を締結するだけで、固定部材70に対する保持部材90の固定位置を調整できる。故に、ミシン1は、固定部材70に対する保持部材90の固定位置の調整を容易化できる。   Further, if the operator of the sewing machine 1 loosens the four screw members 46, the holding member 90 can be moved in the horizontal direction by the gap between the shaft portion 46A and the through hole 41. The operator can fasten the four screw members 46 again and fix the holding member 90 to the fixing member 70 at an appropriate position. That is, the operator can adjust the fixing position of the holding member 90 with respect to the fixing member 70 only by loosening the four screw members 46 and moving the holding member 90 in the horizontal direction and then fastening the four screw members 46 again. . Therefore, the sewing machine 1 can easily adjust the fixing position of the holding member 90 with respect to the fixing member 70.

また、作業者は、設置部92,94を支持部72の上面72Aに固定することで、保持部材90を固定部材70に固定できる。設置部92,94は、アーム部81の左右両側部に水平方向と平行な板状に形成するので、作業者はアーム部81を固定部材70に安定して固定できる。故に布送り装置10は、布を先端側で保持するアーム部81を安定して移動できる。故にミシン1は、安定した布送りを実現できる。   In addition, the operator can fix the holding member 90 to the fixing member 70 by fixing the installation portions 92 and 94 to the upper surface 72 </ b> A of the support portion 72. Since the installation portions 92 and 94 are formed in a plate shape parallel to the horizontal direction on the left and right side portions of the arm portion 81, the operator can stably fix the arm portion 81 to the fixing member 70. Therefore, the cloth feeding device 10 can stably move the arm portion 81 that holds the cloth on the tip side. Therefore, the sewing machine 1 can realize stable cloth feeding.

また、レール部76は、ガイド部材69に対して前側から連結する。レール部76は、ガイド部材69に対して左右方向に往復移動可能である。レール部76の前面76Aは、右側延出部75の左右方向中央部から右側部の後面と、左側延出部71の左右方向中央部から左側部の後面に固定する。即ち、延設部74は、前後方向において、レール部76をガイド部材69と反対側から支持する。延設部74は、左側延出部71、支持部72、右側延出部75の後面の左右方向中央部に、前方に凹む凹部74Aを形成する。延設部74の左右方向両端部はレール部76と連結する。レール部76の左右方向中央部と、延設部74の左右方向中央部は、凹部74Aにより隙間を有する。即ち、延設部74の左右方向中央部は隙間を挟んでレール部76と対向する。布保持体50の左右方向における位置が変位しても、固定部材70の前後方向に対する剛性は変化しにくい。故に、布保持体50が前後方向に間欠的に移動する場合に慣性力が固定部材70に作用しても、固定部材70が備える延設部74の左右方向中央部の撓み量は、ばらつきにくい。保持部材90が保持する布の前後方向の振れ量は安定化する。故にミシン1は、移動する布を一時的に停止する場合において、布の振れ量を安定化できる。布の振れ量が安定化することで、ミシン1は縫いずれの発生を抑制できる。   The rail portion 76 is connected to the guide member 69 from the front side. The rail portion 76 can reciprocate in the left-right direction with respect to the guide member 69. The front surface 76 </ b> A of the rail portion 76 is fixed to the rear surface of the right side portion from the center portion in the left-right direction of the right extension portion 75 and from the center portion of the left extension portion 71 in the left-right direction. That is, the extending portion 74 supports the rail portion 76 from the side opposite to the guide member 69 in the front-rear direction. The extending portion 74 forms a recessed portion 74 </ b> A that is recessed forward in the left-right direction central portion of the rear surface of the left extending portion 71, the support portion 72, and the right extending portion 75. Both ends in the left-right direction of the extending portion 74 are connected to the rail portion 76. The center part in the left-right direction of the rail part 76 and the center part in the left-right direction of the extending part 74 have a gap by the recess 74A. That is, the central portion in the left-right direction of the extending portion 74 faces the rail portion 76 with a gap therebetween. Even if the position of the cloth holder 50 in the left-right direction is displaced, the rigidity of the fixing member 70 in the front-rear direction is unlikely to change. Therefore, even when the inertia force acts on the fixing member 70 when the cloth holding body 50 moves intermittently in the front-rear direction, the amount of bending at the center in the left-right direction of the extending portion 74 provided in the fixing member 70 is unlikely to vary. . The amount of run-out of the cloth held by the holding member 90 is stabilized. Therefore, the sewing machine 1 can stabilize the amount of movement of the cloth when the moving cloth is temporarily stopped. By stabilizing the amount of runout of the cloth, the sewing machine 1 can suppress any occurrence of sewing.

ガイド部材69は、一対の挟持部62が上下方向の両側からレール部76を案内する位置に設ける。延設部74とレール部76の間にガイド部材69が介在しないので、固定部材70の前後方向における長さは短くなる。故に、ミシン1は布送り装置10を小型化できる。   The guide member 69 is provided at a position where the pair of holding portions 62 guides the rail portion 76 from both sides in the vertical direction. Since the guide member 69 is not interposed between the extending portion 74 and the rail portion 76, the length of the fixing member 70 in the front-rear direction is shortened. Therefore, the sewing machine 1 can downsize the cloth feeding device 10.

保持部材90のアーム部81は、固定部材70の支持部72の上面72Aから、レール部76と反対側の前側へ向けて延びる。固定部材70の前後方向の長さは短くなる。故に、布送り装置10の前後方向の長さを大きくすることなく、保持部材90のアーム部81の前後方向の長さを確保できる。挟み枠87とアーム部81の先端側に設けた押え枠84とで保持する布を作業者が配置する為のスペースを、ミシン1は確保できる。故にミシン1は、布の取り回しの作業性を向上できる。   The arm portion 81 of the holding member 90 extends from the upper surface 72A of the support portion 72 of the fixing member 70 toward the front side opposite to the rail portion 76. The length of the fixing member 70 in the front-rear direction is shortened. Therefore, the length in the front-rear direction of the arm portion 81 of the holding member 90 can be secured without increasing the length in the front-rear direction of the cloth feeding device 10. The sewing machine 1 can secure a space for the operator to place the cloth held by the holding frame 87 and the presser frame 84 provided on the distal end side of the arm portion 81. Therefore, the sewing machine 1 can improve the workability of cloth handling.

レール部76の前面76Aは、上下方向及び左右方向に延び、前後方向と直交する。延設部74は、左右方向の中央部が両端部よりも前面76Aから前後方向に沿って離間するように凹んでいる。延設部74は支持部72の上面72Aに保持部材90を設置する。故に、シャフト68の間欠駆動に伴って、布保持体50の固定部材70に慣性力が作用する場合、延設部74の中央部は、左右方向両端部を支点に撓み易い。延設部74の撓み量と布の振れ量が一致し易くなる。故にミシン1は、布を間欠的に移動する場合において、移動する布を一時的に停止する場合において、布の振れ量を更に安定化できる。故にミシン1は、縫いずれの発生を更に抑制できる。   A front surface 76A of the rail portion 76 extends in the up-down direction and the left-right direction, and is orthogonal to the front-rear direction. The extending portion 74 is recessed such that the center portion in the left-right direction is spaced apart from the front surface 76A in the front-rear direction from both ends. The extending portion 74 installs the holding member 90 on the upper surface 72 </ b> A of the support portion 72. Therefore, when an inertial force acts on the fixing member 70 of the cloth holding body 50 as the shaft 68 is intermittently driven, the central portion of the extending portion 74 is easily bent with both left and right end portions as fulcrums. The amount of deflection of the extending portion 74 and the amount of fabric shake easily match. Therefore, the sewing machine 1 can further stabilize the runout amount of the cloth when the cloth is moved intermittently and when the moving cloth is temporarily stopped. Therefore, the sewing machine 1 can further suppress the occurrence of any sewing.

以上説明にて、X軸駆動機構30は本発明の第一駆動機構に相当する。ガイド部材69は本発明のガイド部に相当する。Y軸駆動機構60は本発明の第二駆動機構に相当する。押え枠84は本発明の枠体に相当する。Y軸モータ65は本発明のモータに相当する。シャフト68は本発明の棒状部材に相当する。前面76Aが本発明の端面に相当する。左右方向は本発明の第一方向に相当する。前後方向は本発明の第二方向に相当する。   In the above description, the X-axis drive mechanism 30 corresponds to the first drive mechanism of the present invention. The guide member 69 corresponds to the guide portion of the present invention. The Y-axis drive mechanism 60 corresponds to the second drive mechanism of the present invention. The presser frame 84 corresponds to the frame body of the present invention. The Y-axis motor 65 corresponds to the motor of the present invention. The shaft 68 corresponds to the rod-shaped member of the present invention. The front surface 76A corresponds to the end surface of the present invention. The left-right direction corresponds to the first direction of the present invention. The front-rear direction corresponds to the second direction of the present invention.

本発明は上記実施形態に限定するものでなく種々の変更が可能である。保持部材90は、固定部材70の支持部72の上面72Aに設置していなくてもよい。上面72Aに設置する代わりに、固定部材70の前側部に設けてもよい。   The present invention is not limited to the above embodiment, and various modifications can be made. The holding member 90 may not be installed on the upper surface 72 </ b> A of the support portion 72 of the fixing member 70. Instead of being provided on the upper surface 72A, the fixing member 70 may be provided on the front side portion.

固定部材70の支持部72の上面72Aは、水平方向と平行な平面状でなくてもよい。例えば、水平方向に対して傾斜した平面状であってもよいし、凹凸状であってもよい。   The upper surface 72A of the support portion 72 of the fixing member 70 may not have a planar shape parallel to the horizontal direction. For example, a flat shape inclined with respect to the horizontal direction or an uneven shape may be used.

保持部材90は、設置部92,94の何れか一方のみを備えていてもよい。また、保持部材90は設置部92、94を備えていなくてもよい。該場合、設置部92、94に貫通穴41を設ける代わりに、アーム部81の基端部を上下方向に貫通する貫通穴を設ければよい。   The holding member 90 may include only one of the installation portions 92 and 94. Further, the holding member 90 may not include the installation portions 92 and 94. In this case, instead of providing the through holes 41 in the installation portions 92 and 94, a through hole that penetrates the base end portion of the arm portion 81 in the vertical direction may be provided.

保持部材90は、螺子部材46によって固定部材70に固定しなくてもよい。例えば、螺子部材46の代わりに、ボルトとナットで保持部材90を固定部材70に固定してもよい。   The holding member 90 may not be fixed to the fixing member 70 by the screw member 46. For example, instead of the screw member 46, the holding member 90 may be fixed to the fixing member 70 with bolts and nuts.

支持部72の上面72Aに形成する締結穴42は、四つでなくてもよい。締結穴42は、少なくとも二つあればよい。例えば締結穴42が二つの場合、締結穴42は上面72Aの四隅のうち何れか二箇所、又は上面72Aの前後方向略中央の左右両端に設ければよい。   The number of fastening holes 42 formed in the upper surface 72A of the support portion 72 may not be four. There may be at least two fastening holes 42. For example, when the number of the fastening holes 42 is two, the fastening holes 42 may be provided at any two of the four corners of the upper surface 72A, or at the left and right ends of the upper surface 72A at substantially the center in the front-back direction.

延設部74の左右方向中央部とレール部76の中央部76Cは、隙間なく接触していてもよい。また、本実施形態においては、布保持体50が端部位置にある場合において、固定部材70の前後方向に対する剛性が最も低下するが、これに限定されない。例えば、布保持体50が中央位置にある場合に、固定部材70の剛性が最も低下するように、延設部74の左右方向中央部とレール部76の左右方向中央部は、隙間を空けて対向していてもよい。   The central portion in the left-right direction of the extending portion 74 and the central portion 76C of the rail portion 76 may be in contact with each other without a gap. Moreover, in this embodiment, when the cloth holding body 50 is located at the end position, the rigidity of the fixing member 70 in the front-rear direction is most reduced, but the present invention is not limited to this. For example, when the cloth holding body 50 is in the center position, a gap is formed between the center part in the left-right direction of the extension part 74 and the center part in the left-right direction of the rail part 76 so that the rigidity of the fixing member 70 is reduced most. You may face each other.

延設部74の左右方向中央部が両端部よりも前方に凹む形状でなくてもよい。例えば、延設部74は、左右方向に亘って直線状に延び、レール部76の中央部76Cが両端部よりも後方に凹んでいてもよい。例えば、延設部74は、左右方向両端部にスペーサを設け、スペーサにレール部76の左右方向両端部を固定してもよい。また、延設部74の左右方向中央部及びレール部76の中央部76Cが、夫々、互いに離間する方向に凹んでいてもよい。   The center part in the left-right direction of the extending part 74 may not have a shape recessed forward than both end parts. For example, the extending portion 74 may extend linearly in the left-right direction, and the center portion 76C of the rail portion 76 may be recessed rearward from both end portions. For example, the extended portion 74 may be provided with spacers at both ends in the left-right direction, and both ends in the left-right direction of the rail portion 76 may be fixed to the spacers. Moreover, the center part 76C of the left-right direction of the extending part 74 and the center part 76C of the rail part 76 may each be dented in the direction spaced apart from each other.

ガイド部材69は、一対の挟持部62が上下方向両側からレール部76を案内する位置に設けていなくてもよい。例えば、ガイド部材69は、一対の挟持部62が、前後両側からレール部76を案内する位置に設けてもよい。該場合、レール部76と延設部74の間に、一対の挟持部62の一方が介在する。   The guide member 69 may not be provided at a position where the pair of sandwiching portions 62 guide the rail portion 76 from both sides in the vertical direction. For example, the guide member 69 may be provided at a position where the pair of sandwiching portions 62 guide the rail portion 76 from both the front and rear sides. In this case, one of the pair of sandwiching portions 62 is interposed between the rail portion 76 and the extending portion 74.

1 ミシン
10 布送り装置
20 移動支持機構
30 X軸駆動機構
41 貫通穴
42 締結穴
46 螺子部材
46A 軸部
46B 頭部
50 布保持体
60 Y軸駆動機構
62 一対の挟持部
65 Y軸モータ
68 シャフト
69 ガイド部材
70 固定部材
73 Y軸移動部材
74 延設部
76 レール部
76A 前面
81 アーム部
84 押え枠
90 保持部材
92,94 設置部
DESCRIPTION OF SYMBOLS 1 Sewing machine 10 Cloth feed apparatus 20 Movement support mechanism 30 X-axis drive mechanism 41 Through hole 42 Fastening hole 46 Screw member 46A Shaft part 46B Head part 50 Cloth holder 60 Y-axis drive mechanism 62 A pair of clamping part 65 Y-axis motor 68 Shaft 69 Guide member 70 Fixing member 73 Y-axis moving member 74 Extension portion 76 Rail portion 76A Front surface 81 Arm portion 84 Presser frame 90 Holding members 92 and 94 Installation portion

Claims (10)

布を保持可能な布保持体と、
前記布保持体を支持する移動体と、
前記移動体を、水平方向と平行な第一方向と、前記水平方向と平行且つ前記第一方向と直交する第二方向に移動可能に支持する移動支持機構と、
前記移動支持機構を介して前記移動体を前記第一方向に駆動する第一駆動機構と、
前記布保持体に連結する連結部材を有し、前記連結部材を前記第二方向に駆動することで、前記布保持体を前記第二方向に駆動する第二駆動機構と
を備え、
前記第一駆動機構の駆動で前記移動体が前記第一方向に移動した時、前記布保持体が前記連結部材に対して前記第一方向に移動可能である布送り装置において、
前記布保持体は、
前記移動体に固定し、前記第一方向に移動可能に前記連結部材と連結する固定部材と、
前記固定部材と着脱可能に固定し、前記布を保持可能な保持部材と、
前記固定部材に対する前記保持部材の固定位置を前記水平方向に調整可能な位置調整機構と
を備えたことを特徴とする布送り装置。
A cloth holding body capable of holding the cloth;
A moving body that supports the cloth holder;
A movable support mechanism that supports the movable body in a first direction parallel to a horizontal direction and a second direction parallel to the horizontal direction and perpendicular to the first direction;
A first drive mechanism for driving the movable body in the first direction via the movement support mechanism;
A second driving mechanism for driving the cloth holder in the second direction by driving the connecting member in the second direction.
When the movable body moves in the first direction by driving the first drive mechanism, the cloth holding body is movable in the first direction with respect to the connection member.
The cloth holder is
A fixing member fixed to the moving body and connected to the connecting member so as to be movable in the first direction;
A holding member that is detachably fixed to the fixing member and can hold the cloth;
A cloth feeding device comprising: a position adjusting mechanism capable of adjusting a fixing position of the holding member with respect to the fixing member in the horizontal direction.
前記保持部材は、前記固定部材の上面に設置していることを特徴とする請求項1に記載の布送り装置。   The cloth feeding device according to claim 1, wherein the holding member is installed on an upper surface of the fixing member. 前記固定部材の前記上面は、前記水平方向と平行な平面状であることを特徴とする請求項2に記載の布送り装置。   The cloth feeding device according to claim 2, wherein the upper surface of the fixing member has a planar shape parallel to the horizontal direction. 前記保持部材は、前記固定部材の前記上面に設置する設置部を備え、
前記位置調整機構は、
前記固定部材の前記上面に形成した締結穴と、
前記設置部のうち前記締結穴と対向する部位を上下方向に貫通し、内径が前記締結穴よりも大きい貫通穴と、
前記貫通穴に挿通して前記締結穴に締結する軸部と、前記軸部のうち前記設置部に対して前記固定部材と反対側に設け、前記貫通穴の内径より大きい頭部とを有する螺子部材と
を備えたことを特徴とする請求項2又は3に記載の布送り装置。
The holding member includes an installation portion that is installed on the upper surface of the fixing member;
The position adjustment mechanism is
A fastening hole formed in the upper surface of the fixing member;
A portion of the installation portion that opposes the fastening hole in the vertical direction, a through hole having an inner diameter larger than the fastening hole;
A screw having a shaft portion that is inserted into the through hole and fastened to the fastening hole, and a head portion that is provided on the side opposite to the fixing member with respect to the installation portion of the shaft portion and has a head portion that is larger than the inner diameter of the through hole. The cloth feeding device according to claim 2, further comprising: a member.
前記保持部材は、前記固定部材の前記上面から前記第二方向に延び、先端部に前記布を保持する枠体を着脱可能なアーム部を備え、
前記設置部は、前記アーム部の基端部の前記第一方向における両側部の夫々に、前記水平方向と平行な板状に形成し、
前記貫通穴は、前記各設置部に形成し、
前記締結穴は、前記上面のうち前記各貫通穴と対向する部位の夫々に形成し、
前記螺子部材は、前記アーム部の前記基端部に対して前記第一方向における両側の夫々において、前記各軸部が前記各貫通穴に挿通して前記各締結穴に締結し、且つ前記各頭部が前記各設置部を前記上面との間に挟んで固定したことを特徴とする請求項4に記載の布送り装置。
The holding member includes an arm portion that extends in the second direction from the upper surface of the fixing member, and that can attach and detach a frame body that holds the cloth at a tip portion.
The installation portion is formed in a plate shape parallel to the horizontal direction on each of both side portions in the first direction of the base end portion of the arm portion,
The through hole is formed in each installation portion,
The fastening hole is formed in each of the portions facing the through holes in the upper surface,
The screw member is inserted into the through holes and fastened to the fastening holes on both sides in the first direction with respect to the base end portion of the arm portion, and The cloth feeding device according to claim 4, wherein a head is fixed by sandwiching each installation portion with the upper surface.
前記移動支持機構は、前記移動体を、前記第一方向及び前記第二方向に往復移動可能に支持し、
前記第二駆動機構は、
モータと、
前記第二方向に延び、前記モータによって前記第二方向に往復駆動する棒状の棒状部材とを備え、
前記連結部材は、前記棒状部材の一端部に設けたガイド部であり、
前記固定部材は、
前記ガイド部に対し前記第一方向に往復移動可能に連結し、前記第一方向に延びるレール部と、
前記第一方向に延び、前記第二方向において前記レール部を前記ガイド部と反対側から支持し、延設方向の中央部に前記保持部材が着脱可能に固定し、前記移動体に固定する延設部と
を備え、
前記位置調整機構は、前記延設部に対する前記保持部材の前記固定位置を前記水平方向に調整可能であり、
前記延設部は、前記延設方向の両端部が前記レール部と連結し、前記延設方向の中央部が隙間を挟んで前記レール部と対向することを特徴とする請求項1〜5の何れか一つに記載の布送り装置。
The movement support mechanism supports the movable body so as to reciprocate in the first direction and the second direction,
The second drive mechanism is
A motor,
A rod-shaped member extending in the second direction and driven to reciprocate in the second direction by the motor;
The connecting member is a guide portion provided at one end of the rod-shaped member,
The fixing member is
A rail part that is connected to the guide part so as to be capable of reciprocating in the first direction, and that extends in the first direction;
An extension that extends in the first direction, supports the rail portion from the opposite side to the guide portion in the second direction, and that the holding member is detachably fixed to a central portion in the extending direction and fixed to the moving body. And equipped with,
The position adjustment mechanism is capable of adjusting the fixing position of the holding member with respect to the extending portion in the horizontal direction,
6. The extending portion according to claim 1, wherein both end portions in the extending direction are connected to the rail portion, and a central portion in the extending direction is opposed to the rail portion with a gap therebetween. The cloth feeding device according to any one of the above.
前記ガイド部は、前記レール部を挟んで互いに対向配置し、且つ前記レール部を前記第一方向に移動可能に案内する一対の挟持部を備え、前記一対の挟持部が上下方向の両側から前記レール部を案内する位置に設けたことを特徴とする請求項6に記載の布送り装置。   The guide portion includes a pair of sandwiching portions that are opposed to each other with the rail portion interposed therebetween, and that guide the rail portion so as to be movable in the first direction, and the pair of sandwiching portions from both sides in the vertical direction. The cloth feeding device according to claim 6, wherein the cloth feeding device is provided at a position for guiding the rail portion. 前記保持部材は、前記延設部から前記レール部と反対側へ向けて延びることを特徴とする請求項7に記載の布送り装置。   The cloth feeding device according to claim 7, wherein the holding member extends from the extending portion toward the side opposite to the rail portion. 前記レール部は、前記延設部側の端面が、前記第二方向と直交して平面状となる形状であり、
前記延設部は、前記延設方向の前記中央部が、前記両端部よりも前記端面から前記第二方向に離間するように凹む形状であることを特徴とする請求項6〜8の何れか一つに記載の布送り装置。
The rail portion has a shape in which an end surface on the extension portion side is a plane shape orthogonal to the second direction
The extension portion has a shape in which the central portion in the extension direction is recessed so as to be separated from the end face in the second direction than the both end portions. The cloth feeding device according to one.
請求項1〜9の何れか一つに記載の布送り装置を備えたことを特徴とするミシン。   A sewing machine comprising the cloth feeding device according to any one of claims 1 to 9.
JP2014202380A 2014-09-30 2014-09-30 Cloth-feeding device and sewing machine including cloth-feeding device Pending JP2016067750A (en)

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