JPS61134792U - - Google Patents

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Publication number
JPS61134792U
JPS61134792U JP1763685U JP1763685U JPS61134792U JP S61134792 U JPS61134792 U JP S61134792U JP 1763685 U JP1763685 U JP 1763685U JP 1763685 U JP1763685 U JP 1763685U JP S61134792 U JPS61134792 U JP S61134792U
Authority
JP
Japan
Prior art keywords
light
bobbin
bobbin thread
sewing machine
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1763685U
Other languages
Japanese (ja)
Other versions
JPH0226455Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985017636U priority Critical patent/JPH0226455Y2/ja
Publication of JPS61134792U publication Critical patent/JPS61134792U/ja
Application granted granted Critical
Publication of JPH0226455Y2 publication Critical patent/JPH0226455Y2/ja
Expired legal-status Critical Current

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  • Sewing Machines And Sewing (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例による下糸残量検出装
置を一部断面して示す平面図、第２図は第５図の
―線による縦断面図、第３図はＡ，Ｂ，Ｃ，
Ｄは下糸ボビンの正面図、第４図は下糸残量と検
出電圧の関係を示す特性図、第５図は本実施例の
下糸残量検出装置を備えたミシンの表示用発光ダ
イオードの取付位置を示す正面図である。 ３……下方アーム、６……外釜、８……下糸、
１１……発光ダイオード、１２……ホトトランジ
スタ、１３……センサーホルダ、１４……内釜、
１４ｂ……壁、１６……下糸ボビン、１６ａ……
軸部、１６ｂ……鍔部、１７……円弧状長孔、１
８……平坦反射面、１８ａ……円形板体、Ｒ……
収納部、Ｕ……赤外線光、Ｓ……センサー。 FIG. 1 is a partially sectional plan view of a bobbin thread remaining amount detecting device according to an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view taken along the line --- in FIG. 5, and FIG. 3 is A, B, C. ，
D is a front view of the bobbin thread bobbin, FIG. 4 is a characteristic diagram showing the relationship between the remaining bobbin thread amount and the detected voltage, and FIG. 5 is a light emitting diode for display of a sewing machine equipped with the bobbin thread remaining amount detection device of this embodiment. It is a front view showing the attachment position of. 3... Lower arm, 6... Outer hook, 8... Lower thread,
11... Light emitting diode, 12... Phototransistor, 13... Sensor holder, 14... Inner pot,
14b...Wall, 16...Bobbin thread bobbin, 16a...
Shaft portion, 16b... Flange portion, 17... Arc-shaped long hole, 1
8... Flat reflective surface, 18a... Circular plate, R...
Storage section, U...Infrared light, S...Sensor.

Claims (1)

【実用新案登録請求の範囲】 (1) ミシン主軸と同期して回転する外釜と、そ
の外釜に相対回転可能に装着された内釜と、その
内釜中に形成された収納部に着脱可能で、下糸が
巻装される軸部及びその両側の一対の鍔部からな
る下糸ボビンとを備えたミシンにおいて、 前記収納部中の下糸ボビンに巻装された下糸の
残量を検出するためにその下糸ボビンの鍔部に向
つて光を放射する発光部とその発光部に近接した
受光部とからなる検出器をミシン機枠に固着し、 前記発光部からの放射光が通過し得るように前
記下糸ボビンの一対の鍔部に互いに対向する透光
部をそれぞれ設け、 前記透光部を通過した放射光をその透光部を通
して前記受光部に向つて反射するために前記内釜
の収納部の前記検出器に対向する壁に平坦反射面
を設けたことを特徴とするミシンの下糸残量検出
装着。 (2) 前記平坦反射面は、前記内釜の収納部の前
記検出器に対向する壁に固着される円形板体に形
成されていることを特徴とする実用新案登録請求
の範囲第１項記載のミシンの下糸残量検出装置。 (3) 前記透光部は、前記下糸ボビンの軸部を中
心とする円弧状長孔からなることを特徴とする実
用新案登録請求の範囲第１項記載のミシンの下糸
残量検出装置。 (4) 前記下糸ボビンの鍔部の前記検出器に対向
する面は黒色に着色されていることを特徴とする
実用新案登録請求の範囲第１項記載のミシンの下
糸残量検出装置。[Scope of Claim for Utility Model Registration] (1) An outer hook that rotates in synchronization with the main shaft of the sewing machine, an inner hook that is attached to the outer hook so that it can rotate relative to the outer hook, and a removable hook that is attached to a storage section formed in the inner hook. In a sewing machine equipped with a shaft portion on which the bobbin thread is wound and a bobbin thread bobbin consisting of a pair of flanges on both sides of the shaft portion, the remaining amount of the bobbin thread wound on the bobbin thread bobbin in the storage portion. A detector consisting of a light emitting part that emits light toward the flange of the bobbin thread bobbin and a light receiving part close to the light emitting part is fixed to the sewing machine frame to detect the light emitted from the light emitting part. A pair of flanges of the lower thread bobbin are provided with mutually opposing light-transmitting parts so that light can pass therethrough, and emitted light that has passed through the light-transmitting parts is reflected toward the light-receiving part through the light-transmitting parts. A bobbin thread remaining amount detection attachment for a sewing machine, characterized in that a flat reflective surface is provided on a wall of the inner pot storage section facing the detector. (2) The flat reflective surface is formed as a circular plate fixed to a wall facing the detector of the housing portion of the inner pot, as set forth in claim 1 of the utility model registration claim. Remaining bobbin thread detection device for sewing machines. (3) The bobbin thread remaining amount detection device for a sewing machine according to claim 1, wherein the light-transmitting portion is formed of an arcuate long hole centered on the shaft of the bobbin thread bobbin. . (4) The bobbin thread remaining amount detecting device for a sewing machine according to claim 1, wherein the surface of the flange of the bobbin thread facing the detector is colored black.
JP1985017636U 1985-02-08 1985-02-08 Expired JPH0226455Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985017636U JPH0226455Y2 (en) 1985-02-08 1985-02-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985017636U JPH0226455Y2 (en) 1985-02-08 1985-02-08

Publications (2)

Publication Number Publication Date
JPS61134792U true JPS61134792U (en) 1986-08-22
JPH0226455Y2 JPH0226455Y2 (en) 1990-07-18

Family

ID=30505520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985017636U Expired JPH0226455Y2 (en) 1985-02-08 1985-02-08

Country Status (1)

Country Link
JP (1) JPH0226455Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5898753B1 (en) * 2014-10-31 2016-04-06 株式会社エスポアール Sewing failure detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138956A (en) * 1974-04-25 1975-11-06
JPS5421786A (en) * 1977-07-19 1979-02-19 Mitsubishi Electric Corp Vibration detector
JPH0162783U (en) * 1984-12-21 1989-04-21

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138956A (en) * 1974-04-25 1975-11-06
JPS5421786A (en) * 1977-07-19 1979-02-19 Mitsubishi Electric Corp Vibration detector
JPH0162783U (en) * 1984-12-21 1989-04-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5898753B1 (en) * 2014-10-31 2016-04-06 株式会社エスポアール Sewing failure detection device

Also Published As

Publication number Publication date
JPH0226455Y2 (en) 1990-07-18

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