JP2773389B2 - Work cloth holding device in sewing machine - Google Patents
Work cloth holding device in sewing machineInfo
- Publication number
- JP2773389B2 JP2773389B2 JP2130078A JP13007890A JP2773389B2 JP 2773389 B2 JP2773389 B2 JP 2773389B2 JP 2130078 A JP2130078 A JP 2130078A JP 13007890 A JP13007890 A JP 13007890A JP 2773389 B2 JP2773389 B2 JP 2773389B2
- Authority
- JP
- Japan
- Prior art keywords
- cloth holding
- holding frame
- sewing machine
- cloth
- auxiliary clamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明はミシンにおける被加工布保持装置に関する
ものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece holding device for a sewing machine.
従来、例えば大型電子模様縫ミシンにおいては、ミシ
ンテーブルの上面に水平方向に移動される可動支持体を
装着し、この可動支持体の左右両側部に対しクランプ機
構を装着し、両クランプ機構には被加工布を支持する下
部布保持枠を前記可動支持体と同期して水平方向の移動
可能に装着している。又、前記可動支持体には左右一対
の可動支持アームを上下方向の傾動可能に支持するとと
もに、両可動支持アームの先端部に上部布保持枠を装着
している。そして、前記下部布保持枠の上面に被加工布
を載置した後、前記可動支持アームを下方へ傾動して前
記上部布保持枠を被加工布の上面に押圧することによ
り、両布保持枠の間に被加工布を挟着保持した状態で、
図示しない駆動機構により前記可動支持体を前記可動支
持アーム及び上下両布保持枠とともにミシンテーブル上
で水平方向に移動させて、ミシンヘッドに装着したミシ
ン針を上下往復動さえて被加工布に模様縫を行うように
なっていた。Conventionally, for example, in a large-sized electronic pattern sewing machine, a movable support that is horizontally moved is mounted on an upper surface of a sewing table, and a clamp mechanism is mounted on both left and right sides of the movable support. A lower cloth holding frame for supporting the work cloth is mounted movably in the horizontal direction in synchronization with the movable support. A pair of left and right movable support arms are supported on the movable support so as to be tiltable in the vertical direction, and an upper cloth holding frame is attached to the distal ends of both movable support arms. Then, after the work cloth is placed on the upper surface of the lower cloth holding frame, the movable support arm is tilted downward to press the upper cloth holding frame against the upper surface of the work cloth. While holding the work cloth between
The movable support is moved in a horizontal direction on a sewing machine table together with the movable support arm and the upper and lower cloth holding frames by a drive mechanism (not shown), and the sewing needle mounted on the sewing machine head is reciprocated up and down to pattern the cloth to be processed. Had to do sewing.
ところが、前述したように下部布保持枠を左右一対の
クランプ装置により支持し、上部布保持枠の左右両側部
を、左右一対の可動支持アームにより支持する構成で
は、大型の前記上部布保持枠の中間部を下部布保持枠に
確実に被加工布とともに押圧保持することは困難である
ばかりでなく、被加工布に対し閉鎖模様縫いを行う際に
使用する反転型布把持装置を取りつけることができない
という問題があった。However, as described above, in the configuration in which the lower cloth holding frame is supported by the pair of left and right clamp devices and the left and right sides of the upper cloth holding frame are supported by the pair of left and right movable support arms, the large upper cloth holding frame Not only is it difficult to reliably press and hold the intermediate portion together with the work cloth on the lower cloth holding frame, but also it is not possible to mount a reversing cloth gripping device used when performing closed pattern sewing on the work cloth. There was a problem.
この発明の目的は被加工布保持枠に被加工布を確実に
把持することができるとともに、例えば反転型布把持装
置等の別の器具を装着可能なミシンにおける被加工布保
持装置を提供することにある。An object of the present invention is to provide a work cloth holding device in a sewing machine which can securely hold a work cloth on a work cloth holding frame and can be equipped with another device such as an inverted cloth holding device. It is in.
上記目的を達成するため、請求項１に係る発明は、支
持体に支持された主クランプ装置によりミシンテーブル
上面にて下部布保持枠を支持し、下部布保持枠の上方に
て上部布保持枠を下部布保持枠に対し接近離間可能に支
持し、その接近時には上部布保持枠と下部布保持枠とで
被加工布を挟持するミシンにおける被加工布保持装置に
おいて、上部布保持枠の上方から上部布保持枠又は被加
工布の少なくとも一方を下部布保持枠側へ押圧する補助
クランプ部材を前記支持体に支持し、その補助クランプ
部材を使用位置と不使用位置との間で切替え動作可能な
切替え機構を設けた。In order to achieve the above object, the invention according to claim 1 supports the lower cloth holding frame on the upper surface of the sewing machine table by the main clamping device supported by the support, and the upper cloth holding frame above the lower cloth holding frame. Is supported so as to be able to approach and separate from the lower cloth holding frame, and at the time of the approach, in the work cloth holding device of the sewing machine which holds the work cloth between the upper cloth holding frame and the lower cloth holding frame, from above the upper cloth holding frame. An auxiliary clamp member for pressing at least one of the upper cloth holding frame or the work cloth toward the lower cloth holding frame is supported by the support, and the auxiliary clamp member can be switched between a use position and a non-use position. A switching mechanism is provided.
又、請求項２に係る発明は、請求項１に係る発明にお
いて、前記補助クランプ部材を、前記支持体にミシンテ
ーブル面に沿って位置調節可能に設けたられたブラケッ
トに対し、着脱可能に設けた。According to a second aspect of the present invention, in the first aspect of the present invention, the auxiliary clamp member is detachably provided to a bracket provided on the support so as to be adjustable in position along a sewing machine table surface. Was.
［作用及び効果］ 上記手段により、請求項１に係る発明は、主クランプ
装置に支持された下部布保持枠と、下部布保持枠の上方
にて下部布保持枠側に接近した上部布保持枠とで被加工
布が挟持される。[Operation and Effect] According to the above-described means, the invention according to claim 1 provides the lower cloth holding frame supported by the main clamping device and the upper cloth holding frame that is closer to the lower cloth holding frame above the lower cloth holding frame. And the work cloth is clamped.
大型ミシンにおいては、上下両布保持枠が撓み易い等
の理由によって、上部布保持枠と下部布保持枠とによる
被加工布の挟持力が保持枠全体に亘り十分発揮できない
場合が生じる。この点につき、切替え機構の作動により
補助クランプ部材が使用位置に切替え動作されること
で、補助クランプ部材が上部布保持枠の上方から上部布
保持枠又は被加工布の少なくとも一方を下部布保持枠側
へ押圧するように作用することから、この補助クランプ
部材の作用によって上記上部布保持枠と下部布保持枠と
による被加工布保持力の不十分さを解消することができ
る。In a large-sized sewing machine, the holding force of the upper cloth holding frame and the lower cloth holding frame with respect to the workpiece cloth may not be sufficiently exerted over the entire holding frame due to the fact that the upper and lower cloth holding frames are easily bent. In this regard, the auxiliary clamp member is switched to the use position by the operation of the switching mechanism, whereby the auxiliary clamp member moves at least one of the upper cloth holding frame or the workpiece cloth from above the upper cloth holding frame to the lower cloth holding frame. Since it acts so as to press to the side, it is possible to eliminate insufficient working cloth holding force by the upper cloth holding frame and the lower cloth holding frame by the action of the auxiliary clamp member.
従って、大型ミシン、殊に上下両布保持枠が大型であ
る場合であっても、上下両保持枠に対する被加工布の位
置ずれを防止して確実に被加工布を把持しつつ正確な縫
目を形成することができる。Therefore, even when the large-sized sewing machine, especially the upper and lower cloth holding frames are large, the position of the cloth to be processed with respect to the upper and lower holding frames is prevented, and the sewing is accurately performed while securely gripping the cloth to be processed. Can be formed.
又、請求項２に係る発明は、上記請求項１に係る発明
の作用及び効果に加え、ブラケットから補助クランプを
取り外して、例えば反転型布把持装置を装着することが
可能となる。この場合、前記ブラケットを支持体に対し
ミシンテーブル面に沿って位置調節することで反転型布
把持装置を所定の位置に配置することができる。According to the second aspect of the present invention, in addition to the functions and effects of the first aspect of the present invention, it is possible to remove the auxiliary clamp from the bracket and mount, for example, a reversible cloth gripping device. In this case, the position of the bracket is adjusted with respect to the support along the sewing machine table surface, so that the reversible cloth gripping device can be arranged at a predetermined position.
この発明を大型電子模様縫ミシンにおける被加工布保
持装置に具体化した一実施例を図面に基づいて説明す
る。An embodiment in which the present invention is embodied in a work cloth holding device in a large-sized electronic pattern sewing machine will be described with reference to the drawings.
第５図（平面）に示すように機台フレーム１の上面に
はミシンテーブル２が設置され、該ミシンテーブル２の
上面には針棒を具備するミシンヘッド３が装設されてい
る。又、前記ミシンテーブル２の上面には可動支持体４
が図示しない駆動機構により前後方向（Ｘ方向）及び左
右方向（Ｙ方向）へ移動可能に装設され、該可動支持体
４の左右両側部には一対の可動支持アーム5,6が上下方
向への傾動可能に装着され、両支持アーム5,6の先端部
間には被加工布Ｗを次に述べる下部布保持枠と共働して
挟着保持するための上部布保持枠７の左右両側縁が連結
されている。さらに、前記可動支持体４には左右一対の
主クランプ装置9,10が装着され、両クランプ装置9,10に
は前記下部布保持枠８が装着されている。又、前記可動
支持体４には前記上部布保持枠７の中間部上面及び／又
は被加工布Ｗの上面を押圧する補助クランプ装置11が装
着されている。そして、前記両布保持枠の間に被加工布
を確実に保持することができるようにしている。As shown in FIG. 5 (plane), a sewing machine table 2 is installed on the upper surface of the machine frame 1, and a sewing head 3 having a needle bar is installed on the upper surface of the sewing machine table 2. A movable support 4 is provided on the upper surface of the sewing machine table 2.
Are mounted so as to be movable in the front-rear direction (X direction) and in the left-right direction (Y direction) by a driving mechanism (not shown). The upper and lower sides of an upper cloth holding frame 7 for holding and holding the work cloth W in cooperation with a lower cloth holding frame described below between the front ends of the support arms 5 and 6. The edges are connected. Further, a pair of left and right main clamping devices 9 and 10 are mounted on the movable support 4, and the lower cloth holding frame 8 is mounted on both clamping devices 9 and 10. Further, an auxiliary clamp device 11 for pressing the upper surface of the intermediate portion of the upper cloth holding frame 7 and / or the upper surface of the cloth W to be processed is mounted on the movable support 4. The work cloth can be securely held between the two cloth holding frames.
前記両クランプ装置9,10はエアシリンダのピストンロ
ッドが前進すると、カム機構によりクランプ部材が下部
布保持枠８を左右二箇所においてクランプする。なお、
この主クランプ装置9,10については、本出願人による特
公昭63−61033号公報に記載されたものと基本原理は同
じであるので、その詳細な説明は省略する。When the piston rod of the air cylinder moves forward, the clamp members clamp the lower cloth holding frame 8 at the left and right two places by the cam mechanism. In addition,
The basic principles of the main clamping devices 9 and 10 are the same as those described in Japanese Patent Publication No. 63-61033 by the present applicant, and therefore detailed description thereof will be omitted.
前記可動支持体４により両可動支持アーム5,6、上部
及び下部の布保持枠7,8及び主クランプ装置9,10を一体
的に前後方向及び左右方向に動作させるとともに、ミシ
ンヘッド３の針棒を上下方向に動作させて、被加工布Ｗ
に所棒する模様の縫製を自動的に行うことができるよう
になっている。この発明はミシンヘッド３と、支持体４
及び保持枠7,8とを前記針棒の運動軌跡と交差する方向
に相対移動させて前記被加工布の縫製作業を行うように
構成したミシンであれば、適用が可能である。The movable support 4 integrally moves the movable support arms 5 and 6, the upper and lower cloth holding frames 7 and 8, and the main clamp devices 9 and 10 in the front-rear direction and the left-right direction. By moving the rod up and down, the work cloth W
It is possible to automatically sew a pattern to be placed in a place. The present invention relates to a sewing machine head 3 and a support 4.
The present invention can be applied to any sewing machine configured to relatively move the holding frames 7 and 8 in a direction intersecting the movement locus of the needle bar to perform the sewing work on the workpiece cloth.
次に、この発明の要部である補助クランプ装置につい
て説明する。Next, an auxiliary clamp device which is a main part of the present invention will be described.
第２図に示すように、前記可動支持体４の下面に固定
された左右一対の軸受31,32には案内部材としての回動
支持軸33が回動可能に、かつ左右方向に指向するように
配設されている。第３図に示すように、前記可動支持体
４の上側前面には軸受34が固定され、該軸受34には連結
ピン35を介して切替え機構を構成するソレノイド36のブ
ラケット37が前後方向の回転可動に、かつ下向きに連結
され、その可動鉄心38の下端部には、前記回動支持軸33
に基端部を嵌合してボルト46により固定した切替え機構
を構成する駆動アーム39の前端部が連結ピン40により回
動可能に連結されている。そして、ソレノイド36の可動
鉄心38が上下に往復動されると、前記駆動アーム39を介
して前記回動支持軸33が往復回動されるようにしてい
る。As shown in FIG. 2, a pair of left and right bearings 31 and 32 fixed to the lower surface of the movable support 4 are provided with a rotation support shaft 33 as a guide member so as to be rotatable and oriented in the left and right direction. It is arranged in. As shown in FIG. 3, a bearing 34 is fixed to the upper front surface of the movable support 4, and a bracket 37 of a solenoid 36 constituting a switching mechanism is connected to the bearing 34 via a connecting pin 35 to rotate in the front-rear direction. The movable support shaft 33 is connected to the lower end of the movable core 38 so as to be movable and downward.
The front end of a drive arm 39 which forms a switching mechanism in which a base end is fitted and fixed by bolts 46 is rotatably connected by a connecting pin 40. When the movable iron core 38 of the solenoid 36 reciprocates up and down, the rotation support shaft 33 reciprocates via the drive arm 39.
第４図に示すように、前記回動支持軸33上にはブラケ
ットとしての被動アーム41の基端部が嵌合され、ボルト
42により取付角度及び水平方向の位置調節可能に取付ら
れている。また、被動アーム41の前端垂立面41aには補
助クランプ部材としての補助クランプ板43がボルト44に
より取りつけられている。As shown in FIG. 4, a base end of a driven arm 41 as a bracket is fitted on the rotation support shaft 33, and a bolt is provided.
The mounting angle and the horizontal position can be adjusted by 42. Further, an auxiliary clamp plate 43 as an auxiliary clamp member is attached to a front end vertical surface 41a of the driven arm 41 by a bolt.
従って、前記ソレノイド36の可動鉄心38が上下に往復
動されると、回動支持軸33が往復回動されて補助クラン
プ板43が上部の布保持枠８の上面あるいは被加工布Ｗの
上面を押圧保持する使用位置と、被加工布Ｗの上面から
離隔した不使用位置との間で切替え動作される。Therefore, when the movable iron core 38 of the solenoid 36 reciprocates up and down, the rotation support shaft 33 reciprocates and the auxiliary clamp plate 43 moves the upper surface of the upper cloth holding frame 8 or the upper surface of the cloth W to be processed. The switching operation is performed between the use position where the pressing and holding is performed and the non-use position separated from the upper surface of the workpiece W.
このように、この実施例においては、補助クランプ板
43により上部布保持枠８を押圧するようにしたので、左
右一対の可動支持アーム5,6とともに上部布保持枠７を
下部布保持枠８側へ確実に押圧して両布保持枠7,8間に
被加工布Ｗを確実に挟着保持することができる。この結
果、可動支持体４を移動して両布保持枠7,8を水平方向
に移動する際、両布保持枠が相対移動したり、被加工布
が位置ずれを起こしたりすることなく、模様縫い動作を
確実に行うことができる。Thus, in this embodiment, the auxiliary clamp plate
Since the upper cloth holding frame 8 is pressed by 43, the upper cloth holding frame 7 together with the pair of left and right movable support arms 5 and 6 is securely pressed toward the lower cloth holding frame 8 so that the two cloth holding frames 7 and 8 are pressed. The work cloth W can be reliably held and held therebetween. As a result, when the movable support 4 is moved to move the cloth holding frames 7 and 8 in the horizontal direction, the cloth holding frames do not move relative to each other and the cloth to be processed is not displaced. Sewing operation can be performed reliably.
又、前記ボルト44を取り外して補助クランプ板43を取
り外した後、ボルト42を緩めて被動アーム41の左右方向
の位置調節をすることにより、第１図に二点鎖線で示す
反転型布保持装置45を前記被動アーム41に装着すること
も可能となる。Also, after the bolt 44 is removed and the auxiliary clamp plate 43 is removed, the bolt 42 is loosened to adjust the position of the driven arm 41 in the left-right direction, whereby the inverted cloth holding device shown by a two-dot chain line in FIG. It is also possible to attach 45 to the driven arm 41.
なお、この発明は前記実施例に限定されるものではな
く、例えば前記ソレノイド36に代えてエアシリンダを使
用することもできる。The present invention is not limited to the above-described embodiment. For example, an air cylinder may be used instead of the solenoid 36.
第１図はこの発明を大型電子模様縫ミシンに具体化した
一実施例を示す補助クランプ装置の平面図、第２図は同
じく補助クランプ装置の正面図、第３図は回動支持軸の
駆動機構を示す側断面図、第４図は補助クランプ板の取
付構造を示す側断面図、第５図はミシン全体を示す平面
図である。 ２……ミシンテーブル、３……ミシンヘッド、４……支
持体としての可動支持体、７（８）……上部（下部）布
保持枠、9,10……主クランプ装置、11……補助クランプ
装置、31,32……軸受、33……案内部材としての回動支
持軸、36……切替え機構を構成するソレノイド、39……
切替え機構を構成する駆動アーム、41……ブラケットと
しての被動アーム、43……補助クランプ部材としての補
助クランプ板、Ｗ……被加工布。FIG. 1 is a plan view of an auxiliary clamping device showing an embodiment in which the present invention is embodied in a large-sized electronic pattern sewing machine, FIG. 2 is a front view of the auxiliary clamping device, and FIG. FIG. 4 is a side sectional view showing a mechanism, FIG. 4 is a side sectional view showing a mounting structure of an auxiliary clamp plate, and FIG. 5 is a plan view showing the entire sewing machine. 2 ... sewing machine table, 3 ... sewing head, 4 ... movable support as a support, 7 (8) ... upper (lower) cloth holding frame, 9, 10 ... main clamping device, 11 ... auxiliary Clamping device, 31, 32 ... Bearing, 33 ... Rotating support shaft as a guide member, 36 ... Solenoid constituting a switching mechanism, 39 ...
A drive arm constituting a switching mechanism, 41... A driven arm as a bracket, 43... An auxiliary clamp plate as an auxiliary clamp member, W.
Claims (2)
ミシンテーブル上面にて下部布保持枠を支持し、下部布
保持枠の上方にて上部布保持枠を下部布保持枠に対し接
近離間可能に支持し、その接近時には上部布保持枠と下
部布保持枠とで被加工布を挟持するミシンにおける被加
工布保持装置において、 上部布保持枠の上方から上部布保持枠又は被加工布の少
なくとも一方を下部布保持枠側へ押圧する補助クランプ
部材を前記支持体に支持し、その補助クランプ部材を使
用位置と不使用位置との間で切替え動作可能な切替え機
構を設けたことを特徴とするミシンにおける被加工布保
持装置。1. A lower cloth holding frame is supported on the upper surface of a sewing machine table by a main clamping device supported by a support, and the upper cloth holding frame can be approached to and separated from the lower cloth holding frame above the lower cloth holding frame. In the work cloth holding device of the sewing machine that holds the work cloth between the upper cloth holding frame and the lower cloth holding frame when approaching, at least the upper cloth holding frame or the work cloth is positioned from above the upper cloth holding frame. An auxiliary clamp member for pressing one of the auxiliary clamp members toward the lower cloth holding frame side is supported by the support, and a switching mechanism capable of switching the auxiliary clamp member between a use position and a non-use position is provided. Work cloth holding device in sewing machine.
シンテーブル面に沿って位置調節可能に設けられたブラ
ケットに対し、着脱可能に設けた請求項１記載のミシン
における被加工布保持装置。2. The apparatus according to claim 1, wherein said auxiliary clamp member is detachably provided on a bracket provided on said support so as to be adjustable in position along a sewing machine table surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130078A JP2773389B2 (en) | 1990-05-18 | 1990-05-18 | Work cloth holding device in sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2130078A JP2773389B2 (en) | 1990-05-18 | 1990-05-18 | Work cloth holding device in sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0424079A JPH0424079A (en) | 1992-01-28 |
| JP2773389B2 true JP2773389B2 (en) | 1998-07-09 |
Family
ID=15025462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2130078A Expired - Fee Related JP2773389B2 (en) | 1990-05-18 | 1990-05-18 | Work cloth holding device in sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2773389B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5395705B2 (en) * | 2010-02-25 | 2014-01-22 | 株式会社バルダン | Embroidery frame mounting device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5944980U (en) * | 1982-09-13 | 1984-03-24 | 三菱電機株式会社 | Pattern sewing machine presser foot clamp device |
| JPS6213475U (en) * | 1985-07-09 | 1987-01-27 | ||
| JPH02142279U (en) * | 1989-04-27 | 1990-12-03 |
-
1990
- 1990-05-18 JP JP2130078A patent/JP2773389B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0424079A (en) | 1992-01-28 |
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