JP2010035681A - Post bed sewing machine - Google Patents

Post bed sewing machine Download PDF

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JP2010035681A
JP2010035681A JP2008199379A JP2008199379A JP2010035681A JP 2010035681 A JP2010035681 A JP 2010035681A JP 2008199379 A JP2008199379 A JP 2008199379A JP 2008199379 A JP2008199379 A JP 2008199379A JP 2010035681 A JP2010035681 A JP 2010035681A
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sewing machine
feed lever
feed
bed
machine bed
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Teruaki Fukuda
照晃 福田
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Juki Corp
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Juki Corp
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Priority to JP2008199379A priority Critical patent/JP2010035681A/en
Priority to CN2009101615568A priority patent/CN101638833B/en
Publication of JP2010035681A publication Critical patent/JP2010035681A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent any failure caused by defective assembly by eliminating a shuttle shaft board-removing work when replacing the feed dog. <P>SOLUTION: A post bed sewing machine is provided with two sewing needles, two shuttle shafts, two horizontal shuttles, a feed lever (43), a feed dog (45), a feed lever board (6), a shuttle shaft board, a shuttle shaft cover, and a needle plate receiver. The feed lever board is equipped with two feed lever board pieces (61, 62) divided in right and left directions along a sewing machine bed, and a fastener member (63) which connects the feed lever board pieces with each other and each feed lever board piece is detachably attached to the sewing machine bed independently. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、ポストベッドミシンに関する。   The present invention relates to a post bed sewing machine.

二本の縫い針を有するポストベッドミシンが知られている。このミシンは、ミシンベッドに立設された立設部を備えている。この立設部は、ミシンベッド内部の下軸に連結された二本の釜軸と、それぞれの釜軸の先端に設けられた二つの水平釜と、を備えている。二本の縫い針はミシンベッドの左右方向に並んで配置され、これらの縫い針に対応するように二つの水平釜もミシンベッドの左右方向に並んで配置されている(例えば、特許文献1参照。)。
図9、図10に示すように、二つの水平釜の間には、送り梃子111がミシンベッド120の前後方向に揺動可能に設けられており、その上端には、ねじ121により送り歯101が取り付けられている。
立設部100は、送り梃子111が布送り方向に揺動可能となるように送り梃子111をミシンベッド120の左右方向のいずれか一方向と前後方向の三方向から覆う送り梃子台110を備えている。また、立設部100は、ミシンベッド120上面から突出する水平釜及び釜軸をミシンベッド120の左右方向から覆う釜軸台102を備えている。また、立設部100は、ミシンベッド120上面から突出する水平釜及び釜軸の下部をミシンベッド120の前後方向から覆う釜軸台カバー103と、針板122を支持すると共に、ミシンベッド120上面から突出する水平釜及び釜軸の上部をミシンベッド120の前後方向から覆う針板受け104と、を備えている。
ここで、図9(b)に示すように、釜軸台102にはその上面でねじ102aにより釜カバー123が固定され、釜軸台カバー103は釜軸台102の側面にねじ103aにより固定され、針板受け104は、釜軸台102の側面にねじ104aにより固定されている。
特開平7−24175号公報
Post-bed sewing machines having two sewing needles are known. The sewing machine includes a standing portion that is erected on the sewing machine bed. The standing portion includes two hook shafts connected to the lower shaft inside the sewing machine bed, and two horizontal hooks provided at the tips of the hook shafts. Two sewing needles are arranged side by side in the left and right direction of the sewing machine bed, and two horizontal hooks are also arranged in the left and right direction of the sewing machine bed so as to correspond to these sewing needles (see, for example, Patent Document 1). .)
As shown in FIGS. 9 and 10, a feed lever 111 is provided between the two horizontal hooks so as to be swingable in the front-rear direction of the sewing machine bed 120. Is attached.
The standing portion 100 includes a feed lever base 110 that covers the feed lever 111 from any one of the left and right directions of the sewing machine bed 120 and the three directions in the front-rear direction so that the feed lever 111 can swing in the cloth feed direction. ing. The standing portion 100 includes a horizontal hook protruding from the upper surface of the sewing machine bed 120 and a hook shaft base 102 that covers the hook shaft from the left and right directions of the sewing machine bed 120. The standing portion 100 supports the horizontal shuttle protruding from the upper surface of the sewing machine bed 120 and the lower part of the hook shaft from the front and rear direction of the sewing machine bed 120 and the needle plate 122 and supports the needle plate 122 and the upper surface of the sewing machine bed 120. And a needle plate holder 104 that covers the upper part of the horizontal hook protruding from the front and rear directions of the sewing machine bed 120.
Here, as shown in FIG. 9B, the hook cover 123 is fixed to the hook shaft base 102 by screws 102 a on the upper surface thereof, and the hook shaft cover 103 is fixed to the side surface of the hook shaft base 102 by screws 103 a. The needle plate receiver 104 is fixed to the side surface of the shuttle shaft base 102 with screws 104a.
Japanese Patent Laid-Open No. 7-24175

図10に示すように、送り梃子台110は、送り梃子111をその揺動方向から覆っており、一方の水平釜側だけが開口されている。そのため、送り梃子111に取り付けられた送り歯101を交換する際には、ねじ102aを外して釜カバー123を取り外し、ねじ103aを外して釜軸台カバー103を取り外し、ねじ104aを外して針板受け104を取り外し、その後、ミシンベッド120から釜軸台102を取り外す必要があった。このような手順を必要とするのは、これら全てを取り外さなければ、送り梃子111に取り付けられている送り歯101のねじ121が露出しないため、送り歯101の交換作業ができないからである。
ここで、釜軸台102を外すという作業自体は困難なものではない。しかし、自動糸切り機能を搭載したミシンや釜軸台102への自動給油装置を搭載したミシンにおいては、釜軸台102を外す場合、ミシン本体と釜軸台102を連結するこれらの装置に関連する部品を取り外し、送り歯101を交換した後に、これらの部品を再度組付ける必要があるなど作業手順が非常に複雑である。そのため、組付け不良による動作不良を起こす原因となっていた。
As shown in FIG. 10, the feed lever base 110 covers the feed lever 111 from the swinging direction, and only one horizontal hook side is opened. Therefore, when replacing the feed dog 101 attached to the feed lever 111, the screw 102a is removed, the shuttle cover 123 is removed, the screw 103a is removed, the shuttle shaft cover 103 is removed, the screw 104a is removed, and the needle plate is removed. It was necessary to remove the catch 104 and then remove the shuttle shaft 102 from the sewing machine bed 120. The reason why such a procedure is required is that unless all of these are removed, the screw 121 of the feed dog 101 attached to the feed lever 111 is not exposed, so that the feed dog 101 cannot be replaced.
Here, the operation of removing the shuttle shaft 102 is not difficult. However, in a sewing machine equipped with an automatic thread trimming function and a sewing machine equipped with an automatic oil supply device for the hook shaft base 102, when the hook shaft base 102 is removed, it is related to these devices that connect the sewing machine body and the hook shaft base 102. The work procedure is very complicated, for example, after the parts to be removed are removed and the feed dog 101 is replaced, these parts must be reassembled. For this reason, it has caused a malfunction due to poor assembly.

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、送り歯の交換の際に釜軸台の取り外し作業を無くし、組付け不良による動作不良を防止することができるポストベッド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 post bed sewing machine that eliminates the operation of removing the hook shaft base when replacing the feed dog and prevents malfunction due to poor assembly. The purpose is to provide.

請求項1に記載の発明は、ミシンベッド(12)に立設されたミシンアーム(11)に設けられ、上下動により布に縫い目を形成する二本の縫い針(21,21)と、
各縫い針の下方に配置され、それぞれが縫い針に向かって延びる二本の釜軸(33,33)と、
各釜軸の先端にそれぞれ設けられた二つの水平釜(32,32)と、
二本の釜軸に挟まれた位置で上方に延びるように配置され、前記ミシンベッドの前後方向となる布送り方向に揺動すると共に上下方向に往復動作する送り梃子(43)と、
前記送り梃子の上端に着脱自在に固定された送り歯(45)と、
前記送り梃子が布送り方向に揺動可能となるように前記送り梃子を前記ミシンベッドの左右方向のいずれか一方向と前後方向の三方向から覆う送り梃子台(6)と、
前記ミシンベッド上面から突出する水平釜及び釜軸を前記ミシンベッドの左右方向から覆う釜軸台(31,31)と、
前記ミシンベッド上面から突出する水平釜及び釜軸の下部を前記ミシンベッドの前後方向から覆う釜軸台カバー(51,51)と、
針板を支持すると共に、前記ミシンベッド上面から突出する水平釜及び釜軸の上部を前記ミシンベッドの前後方向から覆う針板受け(52,52)と、
を備えるポストベッドミシン(1)において、
前記送り梃子台は、前記ミシンベッドの左右方向に沿って分割された二つの送り梃子台片(61,62)と、各送り梃子台片を連結する締結部材(63)と、を有し、
各送り梃子台片は、前記ミシンベッドに単独で着脱可能であることを特徴とする。
The invention according to claim 1 is provided on the sewing machine arm (11) erected on the sewing machine bed (12), and two sewing needles (21, 21) for forming seams on the cloth by vertical movement;
Two hook shafts (33, 33) disposed below each sewing needle, each extending toward the sewing needle;
Two horizontal hooks (32, 32) provided at the end of each hook shaft,
A feed lever (43) that is arranged to extend upward at a position sandwiched between two shuttle shafts, swings in the cloth feed direction that is the front-rear direction of the sewing machine bed, and reciprocates in the vertical direction;
A feed dog (45) removably fixed to the upper end of the feed lever;
A feed lever base (6) for covering the feed lever from one of the left and right directions of the sewing machine bed and the three directions of the front and rear directions so that the feed lever can swing in the cloth feed direction;
A horizontal shaft protruding from the upper surface of the sewing machine bed and a hook shaft base (31, 31) for covering the horizontal shaft of the sewing machine bed from the left and right directions;
A horizontal hook protruding from the upper surface of the sewing machine bed and a hook shaft cover (51, 51) for covering the lower part of the hook shaft from the front and rear direction of the sewing machine bed;
A needle plate support (52, 52) that supports the needle plate and covers the horizontal hook protruding from the upper surface of the sewing machine bed and the upper portion of the hook shaft from the front-rear direction of the sewing machine bed;
In a post bed sewing machine (1) comprising:
The feed lever base has two feed lever base pieces (61, 62) divided along the left-right direction of the sewing machine bed, and a fastening member (63) for connecting the feed lever base pieces,
Each feeding lever base piece is detachably attached to the sewing machine bed.

請求項2に記載の発明は、請求項1に記載のポストベッドミシンにおいて、
前記ミシンベッドの前側に位置する送り梃子台片のみが前記ミシンベッドに着脱自在であることを特徴とする。
The invention according to claim 2 is the post bed sewing machine according to claim 1,
Only the feed lever base piece located on the front side of the sewing machine bed is detachable from the sewing machine bed.

請求項3に記載の発明は、請求項1に記載のポストベッドミシンにおいて、
前記送り梃子に取付けられた角駒(46)と、
前後方向に沿って前記送り梃子台に形成されると共に、前記角駒を上下方向に沿って摺動自在に支持する溝部(6a)と、を備え、
前記二つの送り梃子台片が前記溝部を前記左右方向に沿って分割することを特徴とする。
The invention according to claim 3 is the post bed sewing machine according to claim 1,
A square piece (46) attached to the feeding lever;
A groove portion (6a) that is formed in the feed lever base along the front-rear direction and supports the square piece slidably along the vertical direction;
The two feed insulator base pieces divide the groove portion along the left-right direction.

請求項1に記載の発明によれば、送り梃子台は、ミシンベッドの左右方向に沿って分割された二つの送り梃子台片が締結部材により連結されている。また、各送り梃子台片は、ミシンベッドに単独で着脱可能となっている。
これにより、送り歯の交換をする際には、釜軸台カバーと針板受けを取り外し、次いで、締結部材を取り外し、二つの送り梃子台片の連結を解除した上で、一方の送り梃子台片をミシンベッドから取り外せばよい。この作業だけで、送り歯は露出するので、あとは送り梃子を回動させて釜軸台に挟まれた位置から移動させて送り歯の交換を行うことができる。
よって、送り歯の交換の際に釜軸台の取り外し作業を無くし、組付け不良による動作不良を防止することができる。
According to the first aspect of the present invention, the feed lever base is formed by connecting the two feed lever base pieces divided along the left-right direction of the sewing machine bed by the fastening member. Each feed lever base piece is detachably attached to the sewing machine bed.
Thus, when replacing the feed dog, remove the hook shaft cover and the needle plate holder, then remove the fastening member and release the connection between the two feed lever base pieces, Remove the piece from the machine bed. Since the feed dog is exposed only by this operation, the feed dog can be replaced by rotating the feed lever from the position sandwiched between the hook shafts.
Therefore, it is possible to eliminate the operation of removing the hook shaft base at the time of replacement of the feed dog, and to prevent malfunction due to poor assembly.

請求項2に記載の発明によれば、ミシンベッドの前側に位置する送り梃子台片を取り外すことにより、送り梃子を作業者側に回動させることができる。
よって、送り歯の交換作業を容易に行うことができる。
According to the second aspect of the present invention, the feed lever can be turned to the operator side by removing the feed lever base piece located on the front side of the sewing machine bed.
Therefore, the feed dog can be easily replaced.

請求項3に記載の発明によれば、二つの送り梃子台片が溝部を左右方向に沿って分割するので、送り歯の交換の際に釜軸台の取り外し作業を無くし、組付け不良による動作不良を防止することができる。   According to the third aspect of the invention, since the two feed insulator base pieces divide the groove portion in the left-right direction, the operation of removing the hook shaft base is eliminated when replacing the feed dog, and the operation due to poor assembly. Defects can be prevented.

以下、図面を参照して、本発明に係るポストベッドミシンの最良の実施形態について詳細に説明する。ポストベッドミシンは、例えば、靴や鞄における立体部分等の縫製を行う場合に用いられる。ポストベッドミシンは、ミシンベッド上に立設され、上面に針板を有すると共に内側上部に釜や送り歯を内包する有頭筒状の立設部を有し、針板が通常のミシンベッド(いわゆる平ベッド)と同じ高さでは縫製が困難である被縫製物の立体部分の縫製に適したミシンである。
なお、本実施形態においては、各図中に示したXYZ軸を基準にしてミシンの各部の方向を定めるものとする。ミシンを水平面に設置した状態において、Z軸方向は鉛直方向となる上下方向を示し、Y軸方向はミシンアーム部の長手方向と一致する左右方向を示し、X軸方向は水平且つY軸方向に直交する前後方向を示す。
Hereinafter, the best embodiment of a post bed sewing machine according to the present invention will be described in detail with reference to the drawings. The post-bed sewing machine is used, for example, when sewing a three-dimensional part or the like in shoes or a bag. The post bed sewing machine is erected on the sewing machine bed, has a needle plate on the upper surface, and has a headed cylindrical standing part containing the hook and feed dog on the inner upper part. This sewing machine is suitable for sewing a three-dimensional portion of a sewing product that is difficult to sew at the same height as a so-called flat bed.
In the present embodiment, the direction of each part of the sewing machine is determined based on the XYZ axes shown in the drawings. In a state where the sewing machine is installed on a horizontal plane, the Z-axis direction indicates the vertical direction that is the vertical direction, the Y-axis direction indicates the left-right direction that coincides with the longitudinal direction of the sewing machine arm portion, the X-axis direction is horizontal and the Y-axis direction An orthogonal front-rear direction is shown.

<ミシンの糸調子装置の構成>
(全体構成)
図1〜図4に示すように、ミシン1は、ミシンテーブル2の上面に配置されたミシンフレーム10と、ミシンフレーム10内に設けられ、縫い針21を上下に駆動する針駆動機構20と、この針駆動機構20と協働して縫い目を形成する釜機構30と、被縫製物たる布を送る送り機構40と、を備えている。
<Configuration of sewing thread tension device>
(overall structure)
As shown in FIGS. 1 to 4, the sewing machine 1 includes a sewing machine frame 10 disposed on the upper surface of the sewing machine table 2, a needle driving mechanism 20 that is provided in the sewing machine frame 10 and drives the sewing needle 21 up and down, A hook mechanism 30 that forms a seam in cooperation with the needle drive mechanism 20 and a feed mechanism 40 that feeds a cloth to be sewn are provided.

(ミシンフレーム)
図1に示すように、ミシンフレーム10は、ミシンフレーム10の上部をなしミシンテーブル2の長手方向(Y軸方向)に沿って延在されるミシンアーム部(ミシンアーム)11と、ミシンフレーム10の下部をなしミシンテーブル2と対向するミシンベッド部(ミシンベッド)12と、ミシンアーム部11とミシンベッド部12とを連結し、ミシンアーム部11及びミシンベッド部12の長手方向と直交する上下方向(Z軸方向)に立設される縦胴部13とから構成されており、その外形が正面視にて略コ字状に成形されている。
また、一端に縦胴部13が立設されたミシンベッド部12の他端側には、ミシンベッド部12の上方に向かって突設された有頭筒状の立設部14が設けられている。
(Sewing frame)
As shown in FIG. 1, the sewing machine frame 10 includes a sewing machine arm portion (sewing arm) 11 that forms an upper portion of the sewing machine frame 10 and extends along the longitudinal direction (Y-axis direction) of the sewing machine table 2, and the sewing machine frame 10. Are connected to the sewing machine bed part (sewing bed) 12 facing the sewing machine table 2, the sewing machine arm part 11 and the sewing machine bed part 12, and the vertical direction perpendicular to the longitudinal direction of the sewing machine arm part 11 and the sewing machine bed part 12. It is comprised from the vertical trunk | drum 13 standingly arranged in a direction (Z-axis direction), and the external shape is shape | molded by substantially U shape by the front view.
Further, a headed tubular standing portion 14 is provided on the other end side of the sewing bed portion 12 with the vertical body portion 13 standing at one end, and projects upwardly from the sewing bed portion 12. Yes.

(針駆動機構)
図1に示すように、針駆動機構20は、ミシンアーム部11内において左右方向(Y軸方向)に沿って回転自在に延在された図示しない上軸(主軸)と、上軸の先端に固定された回転錘(図示略)と、上端が回転錘の偏心部に回転自在に連結されたクランクロッド(図示略)と、クランクロッドの下端に回動自在に連結された針棒22と、針棒22の下端に支持された縫い針21とを備えている。そして、図示しないミシンモータの駆動により、ミシンモータと連結された上軸が回転すると、その回転が回転錘及びクランクロッドを介して上下動に変換されて針棒22に伝達され、針棒22と縫い針21とが往復上下動を行う。なお、針駆動機構20には、二本の縫い針21,21が装備され、Y軸方向(左右方向)に沿って並設されている。
(Needle drive mechanism)
As shown in FIG. 1, the needle drive mechanism 20 has an upper shaft (main shaft) (not shown) that extends rotatably in the left-right direction (Y-axis direction) in the sewing machine arm 11 and a tip of the upper shaft. A fixed rotating weight (not shown), a crank rod (not shown) whose upper end is rotatably connected to an eccentric part of the rotating weight, a needle bar 22 rotatably connected to the lower end of the crank rod, A sewing needle 21 supported on the lower end of the needle bar 22 is provided. Then, when the upper shaft connected to the sewing machine motor is rotated by driving a sewing machine motor (not shown), the rotation is converted into a vertical movement via the rotary weight and the crank rod and transmitted to the needle bar 22. The sewing needle 21 reciprocates up and down. The needle drive mechanism 20 is equipped with two sewing needles 21 and 21 and is arranged side by side along the Y-axis direction (left-right direction).

(釜機構)
図2、図3に示すように、釜機構30は、ミシンベッド部12から上方に向かって突設された立設部14に設けられている。この釜機構30は、Y軸方向に並んで立設された二つの釜軸台31,31と、釜軸台31,31の内部においてZ軸方向(上下方向)に沿ってそれぞれ回転自在に支持された釜軸33,33と、これら釜軸33,33に軸支されることで水平面内において回転自在に設けられた水平釜32,32とを備えている。
釜軸台31,31は、ミシンベッド部12上面から突出する水平釜32,32や釜軸33,33を左右方向(Y軸方向)から覆うように形成されている。
そして、ミシンベッド部12内においてY軸方向に沿って回転自在に延在された下軸3が上軸と共に回転駆動されると、下軸3と同軸上に設けられた下軸ギヤ3a,3aが回転し、釜軸ギヤ34,34を介して釜軸33,33が回転されて水平釜32,32(外釜)が回転する。これにより、水平釜32,32と縫い針21,21との協働により縫い目が形成される。
(Hook mechanism)
As shown in FIGS. 2 and 3, the shuttle mechanism 30 is provided on the standing portion 14 that protrudes upward from the sewing machine bed portion 12. The hook mechanism 30 is supported by two hook shaft bases 31, 31 erected side by side in the Y-axis direction, and rotatably inside the hook shaft bases 31, 31 along the Z-axis direction (vertical direction). The hook shafts 33, 33 are provided, and horizontal hooks 32, 32 are rotatably provided in a horizontal plane by being pivotally supported by the hook shafts 33, 33.
The shuttle shaft bases 31 and 31 are formed so as to cover the horizontal shuttles 32 and 32 and the shuttle shafts 33 and 33 protruding from the upper surface of the sewing machine bed portion 12 from the left and right direction (Y-axis direction).
When the lower shaft 3 extending rotatably along the Y-axis direction in the sewing machine bed portion 12 is rotationally driven together with the upper shaft, the lower shaft gears 3a and 3a provided coaxially with the lower shaft 3 Rotates, the hook shafts 33, 33 are rotated via the hook shaft gears 34, 34, and the horizontal hooks 32, 32 (outer hooks) rotate. Thereby, a seam is formed by the cooperation of the horizontal hooks 32, 32 and the sewing needles 21, 21.

(送り機構)
図4に示すように、送り機構40は、立設部14に設けられている。送り機構40は、下軸3に設けられ、下軸3の回転と共に長円の軌跡を描くように運動するリンク部材41と、このリンク部材41に連結ピン42によって回動自在に連結された送り梃子43と、送り梃子43に止めねじ44によって着脱自在に固定された送り歯45と、を備えている。
送り梃子43は、一方向に長尺に形成された板状の部材であり、その長手方向がZ軸方向(上下方向)にほぼ沿うように配置されている。送り梃子43は、二本の釜軸33,33に挟まれた位置に配置されている。送り梃子43は、その下端でリンク部材41に連結され、その上端で送り歯45と連結されている。
(Feeding mechanism)
As shown in FIG. 4, the feed mechanism 40 is provided on the standing portion 14. The feed mechanism 40 is provided on the lower shaft 3 and moves so as to draw an elliptical locus along with the rotation of the lower shaft 3, and the feed member 40 is rotatably connected to the link member 41 by a connecting pin 42. A lever 43 and a feed dog 45 detachably fixed to the feed lever 43 by a set screw 44 are provided.
The feed lever 43 is a plate-like member formed long in one direction, and is arranged so that the longitudinal direction thereof is substantially along the Z-axis direction (vertical direction). The feed lever 43 is disposed at a position sandwiched between the two hook shafts 33, 33. The feed lever 43 is connected to the link member 41 at its lower end and is connected to the feed dog 45 at its upper end.

送り梃子43の上端と下端の間の位置には、角駒46が段ねじ47により固定されている。角駒46は、段ねじ47により送り梃子43への固定位置が不変とされているが、段ねじ47に対しては回転自在となっている。
送り梃子43は、ミシンベッド部12から上方に突出した部分が送り梃子台6によって三方向から覆われている。送り梃子台6は上下方向に伸びる基部6bと、基部6bの前後方向両端部から左右方向に伸びる側壁部6cを備えている。このため、送り梃子台6は、平面視略コ字状に形成され、左右方向一端側に開口部が形成されている。そして、ミシンベッド部12のX軸方向の前側及び後側とY軸方向の右側の計三方向から送り梃子43を覆うように配置されている。
送り梃子台6は、送り梃子43が布送りに必要な揺動幅を確保できるように形成されている。ここで、送り梃子台6の左側だけを解放しているのは、送り梃子43と送り歯45を連結する止めねじ44の頭部が左側にあるからである。
送り梃子台6の右側の壁面には、送り梃子43の上下動作を案内する溝部6aが形成されている。溝部6aはZ軸方向に沿って延びるように形成されている。また溝部6aは、前後方向に沿って送り梃子台6に形成されている。
溝部6aには、送り梃子43に設けられた角駒46が上下方向にスライド移動可能に設けられている。
従って、下軸3が回転すると、リンク部材41が長円状に動作し、リンク部材41に連結されている送り梃子43は、角駒46が溝部6aに案内されながら上下動すると共に、段ねじ47を支点として回動する。これにより、送り歯45も段ねじ47を支点として布送り方向(X軸方向)に沿って回動する。
A square piece 46 is fixed by a step screw 47 at a position between the upper end and the lower end of the feed lever 43. The square piece 46 is fixed to the feed lever 43 by a step screw 47, but is rotatable with respect to the step screw 47.
In the feed lever 43, a portion protruding upward from the sewing machine bed 12 is covered with the feed lever base 6 from three directions. The feed lever base 6 includes a base portion 6b extending in the up-down direction and side wall portions 6c extending in the left-right direction from both ends in the front-rear direction of the base portion 6b. For this reason, the feed lever base 6 is formed in a substantially U shape in plan view, and an opening is formed on one end in the left-right direction. And it arrange | positions so that the feed lever 43 may be covered from the three directions of the front side of the sewing machine bed part 12 in the X-axis direction, a rear side, and the right side of a Y-axis direction.
The feed lever base 6 is formed so that the feed lever 43 can secure a swinging width necessary for cloth feeding. Here, the reason why only the left side of the feed lever base 6 is released is that the head of the set screw 44 that connects the feed lever 43 and the feed dog 45 is on the left side.
A groove 6 a that guides the vertical movement of the feed lever 43 is formed on the right wall surface of the feed lever base 6. The groove 6a is formed so as to extend along the Z-axis direction. Moreover, the groove part 6a is formed in the feed lever base 6 along the front-back direction.
In the groove 6a, a square piece 46 provided on the feed lever 43 is provided so as to be slidable in the vertical direction.
Therefore, when the lower shaft 3 rotates, the link member 41 moves in an oval shape, and the feed lever 43 connected to the link member 41 moves up and down while the square piece 46 is guided by the groove 6a, and the step screw It rotates about 47 as a fulcrum. As a result, the feed dog 45 also rotates along the cloth feed direction (X-axis direction) with the stepped screw 47 as a fulcrum.

図5に示すように、送り梃子台6は、ミシンベッド部12の左右方向に沿って(Y軸方向)に溝部6aを境に二つに分割されており、ミシンベッド部12の前側に設けられる送り梃子台片61と、ミシンベッド部12の後側に設けられる送り梃子台片62と、を備えている。送り梃子台片61と送り梃子台片62には、突き合わせた際に一致するねじ穴61a,62aがそれぞれ形成されている。ねじ穴61a,62aは、溝部6aが形成されている送り梃子台6の右側の壁部にX軸方向(前後方向)に沿って形成されている。
そして、送り梃子台片61と送り梃子台片62を突き合わせた状態で締結部材としての連結ねじ63を双方のねじ穴61a,62aに挿入して連結することで一つの送り梃子台6を構成することができる。溝部6aについても、二つの送り梃子台片61,62を突き合わせて連結することで形成されるようになっている。
As shown in FIG. 5, the feed lever base 6 is divided into two along the horizontal direction (Y-axis direction) of the sewing machine bed portion 12 with the groove 6 a as a boundary, and is provided on the front side of the sewing bed portion 12. The feed lever base piece 61 and the feed lever base piece 62 provided on the rear side of the sewing machine bed portion 12 are provided. The feed insulator base piece 61 and the feed insulator base piece 62 are respectively formed with screw holes 61a and 62a that coincide with each other when they are abutted. The screw holes 61a and 62a are formed along the X-axis direction (front-rear direction) on the right wall portion of the feed lever base 6 in which the groove 6a is formed.
Then, one feed lever base 6 is configured by inserting and connecting the connecting screw 63 as a fastening member into both screw holes 61a and 62a in a state where the feed lever base piece 61 and the feed lever base piece 62 are abutted with each other. be able to. The groove 6a is also formed by abutting and connecting two feeding lever base pieces 61 and 62.

ここで、送り梃子台6を構成する送り梃子台片61,62のうち、ミシンベッド部12の前側の送り梃子台片61のみが、ミシンベッド部12に対して着脱自在とされている。また、送り梃子台片61は、ミシンベッド部12への着脱に対して釜軸台31,31に阻害されることはなく、単独で着脱することができる。
なお、ミシンベッド部12の後側の送り梃子台片62についても、ミシンベッド部12に対して着脱自在としてもよい。
図2に示すように、送り梃子台6の上端には、針板5が設けられている。針板5は、針落ちを行う針駆動機構20の縫い針21,21に対向して配置されている。針板5には、X軸方向に沿って平行に形成され二本の縫い針21,21が針落ちを行う二つの長尺な針穴5a,5aが設けられている。
Here, among the feed lever base pieces 61 and 62 constituting the feed lever base 6, only the feed lever base piece 61 on the front side of the sewing machine bed portion 12 is detachable from the sewing machine bed portion 12. Further, the feed lever base piece 61 is not obstructed by the shuttle shaft bases 31, 31 with respect to the attachment / detachment to the sewing machine bed portion 12, and can be attached / detached independently.
The feeding lever base piece 62 on the rear side of the sewing machine bed 12 may be detachable from the sewing machine bed 12.
As shown in FIG. 2, a needle plate 5 is provided at the upper end of the feed lever base 6. The needle plate 5 is disposed to face the sewing needles 21 and 21 of the needle drive mechanism 20 that performs needle drop. The needle plate 5 is provided with two long needle holes 5a and 5a which are formed in parallel along the X-axis direction and through which the two sewing needles 21 and 21 drop.

図6(a)は立設部14の平面図であり、図6(b)は立設部14の正面図である。
立設部14の前側には、ミシンベッド部12の上面から突出する水平釜32,32及び釜軸33,33の下部をミシンベッド部12の前後方向から覆う釜軸台カバー51と、針板5を支持すると共に、ミシンベッド部12の上面から突出する水平釜32,32及び釜軸33,33の上部をミシンベッド部12の前後方向から覆う針板受け52と、を備えている。
釜軸台カバー51及び針板受け52は、水平釜32,32及び釜軸33,33に加え、送り梃子台6の正面及び背面も覆うように形成されている。
釜軸台カバー51は、4本の止めねじ51aにより、左右の釜軸台31,31に取り付けられている。針板受け52は、4本の止めねじ52aにより、左右の釜軸台31,31に取り付けられている。
従って、立設部14の正面側及び背面側は、釜軸台カバー51及び針板受け52によって覆われている。
FIG. 6A is a plan view of the standing portion 14, and FIG. 6B is a front view of the standing portion 14.
At the front side of the upright portion 14, a horizontal shuttle 32, 32 protruding from the upper surface of the sewing machine bed portion 12 and a hook shaft base cover 51 that covers the lower portions of the hook shafts 33, 33 from the front and rear direction of the sewing machine bed portion 12, and a needle plate 5 and a needle plate holder 52 that covers the upper portions of the horizontal hooks 32 and 32 protruding from the upper surface of the sewing machine bed portion 12 and the upper and lower shafts 33 and 33 from the front and rear direction of the sewing machine bed portion 12.
The shuttle shaft cover 51 and the needle plate receiver 52 are formed so as to cover the front and back of the feed lever base 6 in addition to the horizontal shuttles 32 and 32 and the shuttle shafts 33 and 33.
The hook shaft cover 51 is attached to the left and right hook shafts 31 and 31 by four set screws 51a. The needle plate receiver 52 is attached to the left and right shuttle shaft bases 31, 31 by four set screws 52a.
Therefore, the front side and the back side of the standing portion 14 are covered with the shuttle shaft cover 51 and the needle plate receiver 52.

また、釜軸台31,31の上端部には、水平釜32,32を覆う釜カバー53,53が止めねじ53aにより取り付けられている。
ここで、釜軸台カバー51、針板受け52、釜カバー53は、互いに干渉しない位置に取り付けられ、着脱の際に他の部品と一切干渉しない。また、釜軸台カバー51、針板受け52、釜カバー53は、釜軸台31,31よりも外側に取り付けられているので、これらを取り外す際に釜軸台31,31を取り外すことを要しない。
従って、送り梃子台片61は、釜軸台カバー51と針板受け52を取り外してしまえば、ミシンベッド部12への着脱の際に他の部品に干渉することがない。
In addition, hook covers 53 and 53 that cover the horizontal hooks 32 and 32 are attached to upper ends of the hook shafts 31 and 31 by set screws 53a.
Here, the hook shaft cover 51, the needle plate receiver 52, and the hook cover 53 are attached at positions where they do not interfere with each other, and do not interfere with other parts at the time of attachment / detachment. Further, since the hook shaft cover 51, the needle plate receiver 52, and the hook cover 53 are attached to the outside of the hook shafts 31, 31, it is necessary to remove the hook shafts 31, 31 when removing them. do not do.
Therefore, the feed lever base piece 61 does not interfere with other components when the hook shaft cover 51 and the needle plate holder 52 are detached from the sewing machine bed portion 12 when being attached to or detached from the sewing machine bed portion 12.

<送り歯の交換作業手順について>
送り歯45を交換する際には、図6に示す状態から、針板5を取り外し、送り歯45を針板5の針穴5aから解放する。また、立設部14の前側にある止めねじ52aを緩めて針板受け52を取り外し、止めねじ51aを緩めて釜軸台カバー51を取り外す。
すると、図7に示すように、釜軸台31,31及び送り梃子台6が露出した状態となる。
この状態において、連結ねじ63を外すと、送り梃子台6は、送り梃子台片61と送り梃子台片62との連結が解放され、分割される。
ここで、送り梃子台片61は、送り梃子43の揺動線上に設けられているので、送り梃子台片61を取り外すと、送り梃子43は、リンク部材41との連結部(連結ピン42)を支点としてミシンベッド部12の前側に倒すことができるようになる。
図8に示すように、送り梃子43をミシンベッド部12の前側に倒すことで、送り梃子43及び送り歯45は、立設部14から離脱することができる。
これにより、送り歯45を固定している止めねじ44も立設部14から離脱することになるので、作業者は、他の部品との干渉により交換作業を阻害されることがなく、送り歯45の交換を容易に行うことができる。
<About the feed dog replacement work procedure>
When replacing the feed dog 45, the needle plate 5 is removed from the state shown in FIG. 6, and the feed dog 45 is released from the needle hole 5 a of the needle plate 5. Further, the setscrew 52a on the front side of the standing portion 14 is loosened to remove the needle plate receiver 52, the setscrew 51a is loosened to remove the shuttle shaft cover 51.
Then, as shown in FIG. 7, the shuttle shaft bases 31, 31 and the feed lever base 6 are exposed.
In this state, when the connecting screw 63 is removed, the feed lever base 6 is released from the connection between the feed lever base piece 61 and the feed lever base piece 62 and is divided.
Here, since the feed lever base piece 61 is provided on the swing line of the feed lever 43, when the feed lever base piece 61 is removed, the feed lever 43 is connected to the link member 41 (connection pin 42). Can be tilted to the front side of the sewing machine bed 12 with the fulcrum as a fulcrum.
As shown in FIG. 8, the feed lever 43 and the feed dog 45 can be detached from the standing portion 14 by tilting the feed lever 43 to the front side of the sewing machine bed portion 12.
As a result, the set screw 44 fixing the feed dog 45 is also detached from the erected portion 14, so that the operator is not hindered by the interference with other parts, and the feed dog 45 can be easily exchanged.

<実施形態における作用効果>
上記のようなポストベッドミシン1によれば、送り梃子台6は、ミシンベッド部12の前後方向に沿って分割された二つの送り梃子台片61,62が連結ねじ63により連結されている。また、各送り梃子台片61,62は、ミシンベッド部12に単独で着脱可能となっている。
これにより、送り歯45の交換をする際には、釜軸台カバー51と針板受け52を取り外し、次いで、連結ねじ63を取り外し、二つの送り梃子台片61,62の連結を解除した上で、一方の送り梃子台片61をミシンベッド部12から取り外せばよい。この作業だけで、送り歯45は露出するので、あとは送り梃子43を回動させて釜軸台31,31に挟まれた位置から移動させて送り歯45の交換を行うことができる。
よって、送り歯45の交換の際に釜軸台31,31の取り外し作業を無くし、組付け不良による動作不良を防止することができる。
<Operational effects in the embodiment>
According to the post bed sewing machine 1 as described above, the feed lever base 6 is connected to the two feed lever base pieces 61 and 62 divided along the front-rear direction of the sewing machine bed portion 12 by the connecting screw 63. Further, each feeding lever base piece 61, 62 can be attached to and detached from the sewing machine bed portion 12 alone.
Thus, when replacing the feed dog 45, the shuttle shaft cover 51 and the needle plate receiver 52 are removed, then the connecting screw 63 is removed, and the connection between the two feed lever base pieces 61 and 62 is released. Then, one feed lever base piece 61 may be removed from the sewing machine bed portion 12. The feed dog 45 is exposed only by this operation, and after that, the feed dog 43 can be exchanged by rotating the feed lever 43 from the position sandwiched between the hook shafts 31, 31.
Therefore, it is possible to eliminate the operation of removing the hook shafts 31 and 31 when replacing the feed dog 45 and to prevent malfunction due to poor assembly.

また、ミシンベッド部12の前側に位置する送り梃子台片61を取り外すことにより、送り梃子23を作業者側に回動させることができる。
よって、送り歯45の交換作業を容易に行うことができる。
Moreover, the feed lever 23 can be rotated to the operator side by removing the feed lever base piece 61 located on the front side of the sewing machine bed portion 12.
Therefore, the replacement operation of the feed dog 45 can be easily performed.

ポストベッドミシンの斜視図。The perspective view of a post bed sewing machine. 図1におけるA部の拡大図。The enlarged view of the A section in FIG. ミシンベッドを下面側から見たときの釜軸回りの構成を示す図。The figure which shows the structure of the hook shaft periphery when seeing a sewing machine bed from the lower surface side. (a)は送り梃子台に収容される送り梃子を示す図、(b)は(a)におけるB−B断面図。(A) is a figure which shows the feed lever accommodated in a feed lever stand, (b) is BB sectional drawing in (a). (a)は送り梃子台の正面図、(b)は送り梃子台の分解図。(A) is a front view of a feed lever base, (b) is an exploded view of a feed lever base. (a)は立設部の平面図、(b)は立設部の正面図。(A) is a top view of a standing part, (b) is a front view of a standing part. (a)は針板を取り外したときの立設部の平面図、(b)は釜軸台カバー及び針板受けを取り外したときの立設部の正面図。(A) is a top view of the standing part when the needle plate is removed, and (b) is a front view of the standing part when the shuttle shaft cover and the needle plate holder are removed. 送り歯の交換作業を説明する図。The figure explaining the exchange operation of a feed dog. 従来のポストベッドミシンにおける立設部であり、(a)は立設部の平面図、(b)は立設部の正面図。It is a standing part in the conventional post bed sewing machine, (a) is a plan view of the standing part, (b) is a front view of the standing part. 従来のポストベッドミシンにおける送り梃子台に収容される送り梃子を示す図。The figure which shows the feed lever accommodated in the feed lever stand in the conventional post bed sewing machine.

符号の説明Explanation of symbols

1 ポストベッドミシン
6 送り梃子台
6a 溝部
11 ミシンアーム
12 ミシンベッド
21 縫い針
31 釜軸台
32 水平釜
33 釜軸
43 送り梃子
45 送り歯
46 角駒
51 釜軸台カバー
52 針板受け
61 送り梃子台片
62 送り梃子台片
63 連結ねじ(締結部材)
1 Post bed sewing machine 6 Feed lever base 6a Groove part 11 Machine arm 12 Sewing machine bed 21 Sewing needle 31 Hook shaft base 32 Horizontal hook 33 Hook shaft 43 Feed lever 45 Feed dog 46 Square piece 51 Hook base cover 52 Needle plate holder 61 Feed lever Base piece 62 Feed lever base piece 63 Connection screw (fastening member)

Claims (3)

ミシンベッドに立設されたミシンアームに設けられ、上下動により布に縫い目を形成する二本の縫い針と、
各縫い針の下方に配置され、それぞれが縫い針に向かって延びる二本の釜軸と、
各釜軸の先端にそれぞれ設けられた二つの水平釜と、
二本の釜軸に挟まれた位置で上方に延びるように配置され、前記ミシンベッドの前後方向となる布送り方向に揺動すると共に上下方向に往復動作する送り梃子と、
前記送り梃子の上端に着脱自在に固定された送り歯と、
前記送り梃子が布送り方向に揺動可能となるように前記送り梃子を前記ミシンベッドの左右方向のいずれか一方向と前後方向の三方向から覆う送り梃子台と、
前記ミシンベッド上面から突出する水平釜及び釜軸を前記ミシンベッドの左右方向から覆う釜軸台と、
前記ミシンベッド上面から突出する水平釜及び釜軸の下部を前記ミシンベッドの前後方向から覆う釜軸台カバーと、
針板を支持すると共に、前記ミシンベッド上面から突出する水平釜及び釜軸の上部を前記ミシンベッドの前後方向から覆う針板受けと、を備えるポストベッドミシンにおいて、
前記送り梃子台は、前記ミシンベッドの左右方向に沿って分割された二つの送り梃子台片と、各送り梃子台片を連結する締結部材と、を有し、
各送り梃子台片は、前記ミシンベッドに単独で着脱可能であることを特徴とするポストベッドミシン。
Two sewing needles that are provided on a sewing machine arm standing on the sewing machine bed and form a seam on the cloth by vertical movement;
Two hook shafts arranged below each sewing needle, each extending toward the sewing needle;
Two horizontal hooks provided at the tip of each hook shaft,
A feed lever which is arranged to extend upward at a position sandwiched between two shuttle shafts, swings in the cloth feed direction which is the longitudinal direction of the sewing machine bed, and reciprocates in the vertical direction;
A feed dog detachably fixed to the upper end of the feed lever;
A feed lever base that covers the feed lever from one of the left and right directions and the three directions of the front and rear directions of the sewing bed so that the feed lever can swing in the cloth feed direction;
A horizontal hook protruding from the upper surface of the sewing machine bed and a hook shaft base that covers the hook shaft from the left and right directions of the sewing machine bed;
A horizontal hook protruding from the upper surface of the sewing machine bed and a hook shaft cover that covers the lower part of the hook shaft from the front and rear direction of the sewing machine bed;
In a post bed sewing machine that includes a horizontal hook that supports the needle plate and projects from the upper surface of the sewing machine bed and a needle plate holder that covers the upper part of the hook shaft from the front and rear direction of the sewing machine bed,
The feed lever base has two feed lever base pieces divided along the left-right direction of the sewing machine bed, and a fastening member for connecting the feed lever base pieces,
The post bed sewing machine is characterized in that each feeding lever base piece is detachably attached to the sewing machine bed.
前記ミシンベッドの前側に位置する送り梃子台片のみが前記ミシンベッドに着脱自在であることを特徴とする請求項1に記載のポストベッドミシン。   2. The post bed sewing machine according to claim 1, wherein only a feeding lever base piece located on a front side of the sewing machine bed is detachable from the sewing machine bed. 前記送り梃子に取付けられた角駒と、
前後方向に沿って前記送り梃子台に形成されると共に、前記角駒を上下方向に沿って摺動自在に支持する溝部と、を備え、
前記二つの送り梃子台片が前記溝部を前記左右方向に沿って分割することを特徴とする請求項1に記載のポストベッドミシン。
A square piece attached to the feed lever;
A groove portion that is formed in the feed lever base along the front-rear direction and supports the square piece slidably along the vertical direction; and
The post bed sewing machine according to claim 1, wherein the two feeding lever base pieces divide the groove portion along the left-right direction.
JP2008199379A 2008-08-01 2008-08-01 Post bed sewing machine Pending JP2010035681A (en)

Priority Applications (2)

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JP2008199379A JP2010035681A (en) 2008-08-01 2008-08-01 Post bed sewing machine
CN2009101615568A CN101638833B (en) 2008-08-01 2009-07-31 Cylindrical base sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008199379A JP2010035681A (en) 2008-08-01 2008-08-01 Post bed sewing machine

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Cited By (2)

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JP2017537671A (en) * 2014-10-06 2017-12-21 インテヴァ プロダクツ, エルエルシーInteva Products, Llc Method and apparatus for stitching three-dimensional forming member and member formed from the method
CN113373606A (en) * 2021-06-16 2021-09-10 浙江威比玛智能缝制科技有限公司 Sewing equipment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950013008B1 (en) * 1993-06-30 1995-10-24 한국전기공업주식회사 Exchanged device of a toothed mheel
US6470815B1 (en) * 2001-04-16 2002-10-29 Tsai-Fa Ho Structure high speed zigzag stitch industrial-use sewing machine
CN2556231Y (en) * 2002-05-28 2003-06-18 启翔股份有限公司 Column-type sewing machine
CN2646173Y (en) * 2003-07-16 2004-10-06 中国标准缝纫机公司上海惠工缝纫机三厂 Feeding mechanism of superhigh type integrative feeding sewing machine
CN1740424A (en) * 2004-08-25 2006-03-01 启翔股份有限公司 Cloth feeding rod mechanism of cylindrical sewing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017537671A (en) * 2014-10-06 2017-12-21 インテヴァ プロダクツ, エルエルシーInteva Products, Llc Method and apparatus for stitching three-dimensional forming member and member formed from the method
JP2020110600A (en) * 2014-10-06 2020-07-27 インテヴァ プロダクツ, エルエルシーInteva Products, Llc Head for applying stitches to decorative member having three-dimensional shape and decorative member in which a plurality of stitches are applied by head
US11292401B2 (en) 2014-10-06 2022-04-05 Inteva Products, Llc Method and apparatus for stitching a three dimensional formed component and components formed from the method
CN113373606A (en) * 2021-06-16 2021-09-10 浙江威比玛智能缝制科技有限公司 Sewing equipment
CN113373606B (en) * 2021-06-16 2022-07-22 浙江威比玛智能缝制科技有限公司 Sewing equipment

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CN101638833B (en) 2012-11-14

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