JPH02168988A - Position detector - Google Patents
Position detectorInfo
- Publication number
- JPH02168988A JPH02168988A JP32526088A JP32526088A JPH02168988A JP H02168988 A JPH02168988 A JP H02168988A JP 32526088 A JP32526088 A JP 32526088A JP 32526088 A JP32526088 A JP 32526088A JP H02168988 A JPH02168988 A JP H02168988A
- Authority
- JP
- Japan
- Prior art keywords
- position detection
- needle
- annular body
- annular
- detection plate
- 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
Links
- 238000001514 detection method Methods 0.000 claims abstract description 118
- 238000003825 pressing Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009958 sewing Methods 0.000 abstract description 18
- 230000036316 preload Effects 0.000 abstract description 3
- 230000004913 activation Effects 0.000 abstract 1
- 238000001994 activation Methods 0.000 abstract 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 210000004013 groin Anatomy 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/22—Devices for stopping drive when sewing tools have reached a predetermined position
- D05B69/24—Applications of devices for indicating or ascertaining sewing-tool position
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は８回転体からミシンの針位置を検出する針位
置検出装置などの位置検出装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a position detection device such as a needle position detection device that detects the needle position of a sewing machine from an eight-rotation body.
第１２図から第１６図は実開昭６１−４５０８１号公報
に示された従来のミシンの針位置検出装置である。図に
おいて。12 to 16 show a conventional sewing machine needle position detection device disclosed in Japanese Utility Model Application Publication No. Sho 61-45081. In fig.
（２）はミシン針を上下動させる主軸で、ミシン機枠１
）１と一体的な構造をなす軸受（１ａ）に回転可能に支
持されている。(2) is the main shaft that moves the sewing machine needle up and down.
) 1 and is rotatably supported by a bearing (1a) that is integral with the bearing (1a).
＋３１Ｆｉベルトα２によってモータ（図示せず）から
の伝達動力を受けるプーリで、主軸（２）と一体的に回
転するように固定されている。This is a pulley that receives power transmitted from a motor (not shown) by a +31Fi belt α2, and is fixed so as to rotate integrally with the main shaft (2).
（４）および（５）は、それぞれ環状の針下位置検出板
および針上位置検出板で、グー１月３）のミシン機枠ｆ
ｉｌ側の面で、針下位置検出板（４）が外周側に、針上
位置検出板（５）が内周側になるように、主軸（２）に
対し同心的に配置されている。針上位置検出板（５）は
。(4) and (5) are the annular needle lower position detection plate and needle upper position detection plate, respectively, and the sewing machine frame f
On the il side surface, the needle down position detection plate (4) is arranged concentrically with respect to the main shaft (2) so that the needle up position detection plate (5) is on the outer circumference side and the needle up position detection plate (5) is on the inner circumference side. The needle top position detection plate (5) is.
グー１月３）を軸線方向に貫通して設けられ かつ主軸
（２）と同心の円弧状をなす長孔（３ａ）を挿通した止
めねじαａにより、ブー１月３）に固定される。その長
孔（５ａ）の作用で、針上位置検出板（５）はグー１月
３）外から回転方向に任意に位置調整することが可能に
なる。針下位置検出板（４）は、針上位置検出板（５）
の外周部とグー１月３）との間に挟持され、その外周に
設けられた凸部（４ｄ）がプーリ（３）の凹部（５ｂ）
と嵌合することによって円周方向に回転不能に固定され
ている。It is fixed to the bulge 3) by a set screw αa inserted through an arcuate elongated hole (3a) which is provided to axially penetrate the groin 3) and is concentric with the main shaft (2). By the action of the elongated hole (5a), the position of the needle top position detection plate (5) can be arbitrarily adjusted in the rotational direction from the outside. The needle down position detection plate (4) is the needle up position detection plate (5).
The convex part (4d) provided on the outer circumference is sandwiched between the outer circumference of the pulley (3) and the convex part (5b) of the pulley (3).
It is fixed non-rotatably in the circumferential direction by being fitted with.
針下位置検出板（４）は、その内周側に針下位置検出用
透孔（４ｂ）と、その外周側に回転速度検出用透孔（４
ｃ）とを有し、それらの透孔を除く面を鏡面状の反射面
（４ａ）としている。第１６図に示すように。The needle down position detection plate (4) has a needle down position detection through hole (4b) on its inner periphery and a rotational speed detection through hole (4b) on its outer periphery.
c), and the surface excluding those through holes is a mirror-like reflective surface (4a). As shown in FIG.
プーリ（３）の前記透孔（４ｂ） 、 （４ｃ）と対向
する部分には１反射面（４ａ）に対して底面を傾斜した
凹溝（３Ｃ）が形成されかつ黒く着色されているので、
透孔（４ｂ）、 （４ｃ）の部分においてはほとんど反
射作用をしない。In the part of the pulley (3) facing the through holes (4b) and (4c), a groove (3C) whose bottom surface is inclined with respect to the reflective surface (4a) is formed and is colored black.
There is almost no reflection in the through holes (4b) and (4c).
針上位置検出板（５）は、その外周側に針上位置検出用
透孔（５ｂ）を有し、その透孔を除く而を鏡面状の反射
面（５ａ）としている。The needle top position detection plate (5) has a needle top position detection through hole (5b) on its outer circumferential side, and the surface other than the hole is a mirror-like reflective surface (5a).
第１５図に示すように、 （６，）は針上位置検出用
透孔（５ｂ）に対向位置する針上位置検出器、 （ａ
Ｓｂ）は針下位置検出用透孔（４ｂ）に対向位置する針
下位置検出器、 （６ｃ）は回転速度検出用透孔（４
Ｃ）に対向位置する回転速度検出器で、それぞれ投光手
段と受光手段とを有しており、投光手段から発した光の
反射光の有無を１反射ｍ （４ａ）、 （５ａ）である
のか非反射用透孔（４ｂ） 、 （４ｃ） 、 （ｓｈ
） であるのかに応じて受光手段で検知し１位置検出
化号を出力する。As shown in FIG. 15, (6,) is a needle top position detector located opposite to the needle top position detection through hole (5b); (a
Sb) is a needle down position detector located opposite to the needle down position detection hole (4b), and (6c) is the rotation speed detection through hole (4b).
The rotational speed detectors located opposite C) each have a light emitting means and a light receiving means, and detect whether or not the light emitted from the light emitting means is reflected by one reflection m (4a), (5a). Are there any non-reflective holes (4b), (4c), (sh
) is detected by the light receiving means and outputs a 1 position detection code.
検出ａ （６ａ）、 （６ｂ） 、 （６ｃ） は、
プリント基板（９）に取付けられており、検出器の投光
面および受光面を除いて検出器カバー（７）で覆われて
いる。その検出器カバーｆ７１ Ｈ、カバー押え具（８
）を介してねじＱｌｌで軸受（１ａ）に固定されている
・
〔発明が解決しようとする課題〕
従来の針位置検出装置は以上のように構成されているの
で、針上位置検出板の調整にはねじααをゆるめる必要
があり、調整作業が煩雑で、さらに針下位置検出板は針
上位置検出板に回転不能に固定されているので個別に調
整ができない。Detection a (6a), (6b), (6c) is
It is attached to a printed circuit board (9), and is covered with a detector cover (7) except for the light emitting surface and light receiving surface of the detector. The detector cover f71H, cover holder (8
) is fixed to the bearing (1a) with the screw Qll. [Problem to be solved by the invention] Since the conventional needle position detection device is configured as described above, the adjustment of the needle top position detection plate is It is necessary to loosen the screw αα, which makes the adjustment work complicated, and furthermore, the needle down position detection plate is fixed to the needle up position detection plate in a non-rotatable manner, so it cannot be adjusted individually.
また、針上位置検出板と針下位置検出板の反射面は同一
面上になく段差があるので投光から反射・受光までの距
離が異なり、検出器の位置を、１４整するか、あるいは
検出器の位置を調整しない場合は、ブー１月３）の主軸
（２）への我付けにおいて寸法余裕が少なく密な調整を
必要とする等の問題点があった。Also, since the reflective surfaces of the needle top position detection plate and the needle bottom position detection plate are not on the same plane and have a step, the distance from light emission to reflection and reception is different, so the position of the detector must be adjusted 14 times, or If the position of the detector is not adjusted, there is a problem that there is little dimensional margin when attaching the detector to the main shaft (2), requiring close adjustment.
この発明は上記のような問題点を解消するためになされ
たもので２回転軸を支持する支持体とこの回転軸に固定
されて回転する回転体の間に位置検出用の環状体がある
とき０回転体外からねじをゆるめることもなく簡単に位
置検出用の環状体の位置調整ができるとともに、複数の
位置検出用の環状体があっても個別に調整が可能で、さ
らに複数の位置検出用の環状体があっても、支持体から
これらの環状体までの距離を同一とし、検出器の位置を
調整する必要もないすぐれた位置検出４Ａ置を得ること
を目的とする。This invention was made to solve the above-mentioned problems.When there is an annular body for position detection between a support that supports two rotational shafts and a rotating body that is fixed to this rotational shaft and rotates. The position of the annular body for position detection can be easily adjusted without loosening screws from the outside of the 0-rotation body, and even if there are multiple annular bodies for position detection, they can be adjusted individually, and even if there are multiple annular bodies for position detection. Even if there are annular bodies, the distances from the support to these annular bodies are the same, and the object is to obtain an excellent position detection position 4A that does not require adjusting the position of the detector.
（１）この発明に係る位置検出装置は、以下の要素を有
するものである。(1) The position detection device according to the present invention has the following elements.
（２） 軸と。(2) With the axis.
（ｂ） 軸を回転可能に支持する支持体と。(b) A support that rotatably supports the shaft.
（ｃ） 軸方向に貫通した所定形状の孔を一つ以上持
ち、軸に固定されて回転する回
転体と。(c) A rotating body that has one or more holes of a predetermined shape passing through it in the axial direction and is fixed to the shaft and rotates.
（ｄ） 軸を中心にして支持体と回転体の間に配置さ
れ。(d) disposed between the support and the rotating body around the axis;
（ｄ１）回転体とともに回転するため回転体方向に圧力
を掛けられた圧接部と。(d1) A press-contact portion that rotates together with the rotating body and is therefore pressurized in the direction of the rotating body.
（ｄ２）所定の位置を知らせるための位置検出部と。(d2) a position detection unit for notifying a predetermined position;
（ｄ３）回転体と相対的に回動するため０回転体の所定
形状の孔を介して力を加
える加力調整部と
を有する位置検出用の環状体と。(d3) An annular body for position detection having a force adjustment section that rotates relative to the rotary body and applies a force through a hole of a predetermined shape in the zero-rotation body.
（ｅ） 支持体に固定され１回転する環状体の位置検
出部を検出する検出器。(e) A detector that detects the position detection part of the annular body that is fixed to the support and rotates once.
（２）また、上記（１）の位置検出装置において、環状
体が二つ以上あるとき。(2) Also, in the position detection device of (1) above, when there are two or more annular bodies.
（ｆ１）回転体側の環状体の半径を支持体側の環状体の
半径より大きく１０回転
体側の環状体の支持体側の環状体と
重ならない部分に設けられた位置検
出部と。(f1) A position detecting section in which the radius of the annular body on the rotating body side is larger than the radius of the annular body on the support side and is provided in a portion of the annular body on the rotating body side that does not overlap with the annular body on the support side.
（１２）支持体側の環状体の加力調整部に対応して３回
転体側の環状体に設けら
れた所定形状の孔と
を有する位置検出用の環状体を備えた鳴のである。(12) The ring is equipped with a position detection annular body having a hole of a predetermined shape provided in the annular body on the three-rotating body side in correspondence with the force adjustment part of the annular body on the support body side.
１３） また、上記（２）の位置検出装置において１
回転体側の環状体に軸を中心とする四部を設けこの凹部
に支持体側の環状体を配置し、それぞれの環状体にある
複数の位置検出体をロー平面上に配置４したものである
。13) In addition, in the position detection device of (2) above, 1
The annular body on the rotating body side has four parts centered around the axis, the annular body on the supporting body side is arranged in the recessed parts, and a plurality of position detecting bodies in each annular body are arranged 4 on a low plane.
この発明における上記（１）の位１４検出装置は１回転
体と位置検出用の環状体を圧接することにより環状体を
回転させる。したがってねじが不用になり、かつ１回転
体の孔を介して環状体の加力調整部に圧接力以上の力を
加えることにより位置を簡単に調整できる。The above-mentioned (1) digit 14 detection device of the present invention rotates the annular body by pressing the rotating body and the annular body for position detection into contact with each other. Therefore, a screw is not required, and the position can be easily adjusted by applying a force greater than the pressing force to the force adjustment portion of the annular body through the hole of the single rotating body.
また、この発明における上記（２）の位置検出装置は０
位置検出用の環状体が複、孜あるときのもので。Moreover, the position detection device of the above (2) in this invention is 0
This is when the annular body for position detection has multiple positions.
位置検出部が重ならないように環状体の半径を変え、半
径の小さいものを検出器側（支持体側）に配置したもの
である。また１個々の環状体の位置調整が回転体の孔か
らできるように６回転体側の環状体に支持体側の環状体
の調整範囲に十分な大きさの孔を設けたものである。し
たがって支持体側の環状体は２回転体側の環状体の孔と
回転体の孔を介して加力調整部に力を加えられることに
より調整されることになる。The radius of the annular body is changed so that the position detection parts do not overlap, and the one with the smaller radius is placed on the detector side (support side). In addition, so that the position of each annular body can be adjusted through the hole in the rotating body, the annular body on the side of the six rotating bodies is provided with a hole that is large enough to accommodate the adjustment range of the annular body on the support side. Therefore, the annular body on the support body side is adjusted by applying a force to the force adjustment section through the hole in the annular body on the two-rotator side and the hole in the rotary body.
さらに、この発明における上記（３）の位置検出装置は
２位置検出用の環状体が複数あるとき９回転体側の環状
体にへこみ部を設け８このへこみ部に支持体側の環状体
を入れ、それぞれの位置検出部を同一平面としたもので
あり、このため支持体側固定された複数の検出器の位置
が同一でよく、これらの位置調整を不用にでき、かつ、
検出器からの信号を同一処理で行えるようにしたもので
ある。Further, in the position detection device of the above (3) in this invention, when there are two or more annular bodies for position detection, 9 a recess is provided in the annular body on the rotating body side, 8 the annular body on the support side is inserted into this recess, and each The position detecting portions of the detectors are arranged on the same plane, so that the positions of the plurality of detectors fixed on the support body side can be the same, making it unnecessary to adjust their positions, and
This allows signals from the detector to be processed in the same way.
以下、この発明の第一の実施例を図により説明する。第
１図において、（１〕は支持体となるミシン機枠、（２
）はミシン針を上下動させる主軸で、ミシン機枠（１）
に支持された情愛（１ａ）に回転可能に支持されている
。（３）は回転体であり、この例ではベルト（図示せず
）ＶＣよりモータ（図示せず）からの伝達力を受けるプ
ーリで、主軸（２）と一体的に回転するよう固定されて
いる。（４）及び（５）は１位置検出用の環状体であり
、この例ではそれぞれディスク状の針下位置検出板及び
針上位置検出板で、ブー１月３）のミシン機枠ｆｉｌ側
の内部で、針上位置検出板（５）が内側に、針下位置検
出板（４）が外側になるようまた。ブー１月３）に対し
回転可能に配置されている。Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In Figure 1, (1) is a sewing machine frame that serves as a support;
) is the main shaft that moves the sewing machine needle up and down, and is attached to the sewing machine frame (1).
It is rotatably supported by affection (1a) supported by. (3) is a rotating body; in this example, it is a pulley that receives transmission force from a motor (not shown) through a belt (not shown) and VC, and is fixed to rotate integrally with the main shaft (2). . (4) and (5) are annular bodies for detecting one position, and in this example, they are a disk-shaped needle lower position detection plate and needle upper position detection plate, respectively, and are located on the sewing machine frame fil side of Boo January 3). Inside, make sure that the needle up position detection plate (5) is on the inside and the needle down position detection plate (4) is on the outside. Boo January 3) is arranged so as to be rotatable.
■は針上位置検出板＋５１と針下位置検出板（４）の間
に配置されたスベリ板で、摩擦係数の低い材料で形成さ
れている。ｃｔｎｕ針上下位置検出板＋５１． （４１
とすべり板■をプーリ（３）側に押圧するブレロードス
プリングで、主軸の起動・停止・回転により針上下位置
検出板＋５１． （４）がグー１月３）Ｋ対しては回転
しない様に圧接している。のは針上下位置検出板（５）
。3 is a sliding plate disposed between the needle top position detection plate +51 and the needle bottom position detection plate (4), and is made of a material with a low coefficient of friction. ctnu needle up/down position detection plate +51. (41
The brake load spring presses the slide plate ■ and the slide plate ■ toward the pulley (3), and the needle up/down position detection plate +51. (4) is pressed against K so that it does not rotate. This is the needle up/down position detection plate (5)
.
（４）とすべり板■とプレロードスプリング２Ｄを押え
るための端板でさらにこれら全体をプーリ（３）に支持
するためのＣＩ７ング＠がプーリ（３）に配置されてい
る。(4), a slide plate (3), and an end plate for pressing the preload spring 2D, and a CI7 ring @ for supporting the whole of these on the pulley (3) is arranged on the pulley (3).
（／＋Ｕ）ｌ’を各々の投光・受光手段を内蔵した検出
器。(/+U) Detector with built-in means for transmitting and receiving light.
Ｑ４１はモータ（図示せず）又はモータを制御する制御
盤（図示せず）に電源が投入されたとき発光するダイオ
ードで、＠吊器の外周上にあって検出器（６０）のミシ
ン機枠（１）への取付状態で作簗者より見やすい位置に
設けられている。（７）は検出ｙ、（６０）のミシン機
枠＋１）への取付耳でねじαＢによりミシン機枠＋１）
に保持される。Q41 is a diode that emits light when power is turned on to the motor (not shown) or the control panel (not shown) that controls the motor, and is located on the outer periphery of the hoist and close to the sewing machine frame of the detector (60). (1) It is installed in a position where it can be easily seen by the person harvesting the cane. (7) is the detection y, and the mounting lug of (60) to the sewing machine frame + 1) is attached to the sewing machine frame + 1) by screw αB.
is maintained.
第２図は、検出器（６０）のグー１月３）側より見た図
で、 （７，）は取付耳に設けられた長穴で検出器（
６０）全体のミシン機枠（１）への取付時に回転方向の
調整が可能である。（６ａ）は針下位置検出板、 （
６ｂ）＃−Ｊ″針上位ｔＩＩｔ検出器、吊器（ｄａ）は
回転速度検出器で、それぞれ投光手段と受光手段を有し
９反射面の段差に応じて投光から受光°までの距離が同
一となるような位置に配置されている。第３図は針下位
置検出板（４）のミシン機枠側より見た図で、 （４
ａ）は反射面で金属板又はグラスチック等にメツキを施
しである。Figure 2 is a view of the detector (60) seen from the Goo January 3) side.
60) The direction of rotation can be adjusted when the entire sewing machine is attached to the machine frame (1). (6a) is the needle lower position detection plate, (
6b) #-J'' needle upper tIIt detector and hanger (da) are rotational speed detectors, each having a light emitting means and a light receiving means, and the distance from light emitting to light receiving ° depending on the step of the 9 reflecting surfaces. Fig. 3 is a view of the needle lower position detection plate (4) seen from the sewing machine frame side.
A) is a reflective surface that is plated on a metal plate, glass, or the like.
（４ｂ）は位置検出部となる針下位置検出用透孔（切欠
）である。（４ｄ）はブー１月３）外より針下位置検出
板（４）の回転方向調整をするために設けられた加力調
整部となる調整用穴である。第４図は針上位置検出板（
５）のミシン機枠側より見た図で、 （Ｓａ）は反射面
で、金属板又はプラスチック等にメツキを施しである。(4b) is a through hole (notch) for detecting the needle down position which becomes a position detecting section. (4d) is an adjustment hole that serves as a force adjustment section provided to adjust the rotational direction of the needle down position detection plate (4) from the outside. Figure 4 shows the needle top position detection plate (
5) seen from the sewing machine frame side, (Sa) is the reflective surface, which is plated on a metal plate or plastic.
、（５ｂ）は位置検出部となる針上位置に対応する針上
位置検出用透孔、 （５ｃ）は回転速度検出に対応す
る回転速度検出用透孔であるｅ （５ｄ）はグー ！ｊ
＋３＞外より針上位置検出板（５）の回転方向調整を
するために設けられた加力調整部となる調整用穴である
。（５ｅ）は針下位置検出板（４）の加力調整部となる
調整用穴（４ｄ）に対応し針下位置検出板（４）がグー
１月３）外より調整可能とするよう設けた孔となるにが
し穴、 （５ｆ）は針下位置検出板（４）の透孔（４ｂ
）に対応し針下位置検出板（４）の回転方向調整後も反
射面（５ａ）からの反射をさけるために設けたにがし透
孔である６第５図はグー１月３）外より見た図で、Ｑ４
はプーリ（３）を主軸（２）に固定するためのねじ、
１ｊａ）は針上位置検出板１５）の調整用穴（５ｄ）
に対応するブ＋ ＩＪ払抜穴 （３ｂ）は針下位置検
出板（４）の調整用穴（４ｄ）に対応するプーリ抜穴で
ある。（３Ｃ）は前記グ＋ ＩＪ払抜穴３ａ） 、 （
ｓｂ）の近くに設けられた角度目盛で調整角度を知るこ
とができる。, (5b) is a needle top position detection through hole corresponding to the needle top position which becomes a position detection part, (5c) is a rotation speed detection through hole corresponding to rotation speed detection, e (5d) is Goo! j
+3> This is an adjustment hole that serves as a force adjustment section provided to adjust the rotational direction of the needle top position detection plate (5) from the outside. (5e) corresponds to the adjustment hole (4d) which becomes the force adjustment part of the needle down position detection plate (4), and is provided so that the needle down position detection plate (4) can be adjusted from outside. (5f) is the through hole (4b) of the needle lower position detection plate (4).
), the through-hole is provided to avoid reflection from the reflective surface (5a) even after adjusting the rotational direction of the needle down position detection plate (4). In a closer view, Q4
is a screw for fixing the pulley (3) to the main shaft (2),
1ja) is the adjustment hole (5d) of the needle top position detection plate 15)
The IJ removal hole (3b) corresponding to the above is a pulley removal hole corresponding to the adjustment hole (4d) of the needle lower position detection plate (4). (3C) is the above G + IJ removal hole 3a), (
The adjustment angle can be determined from the angle scale provided near the sb).
針上下位置の回転方向角度の調整は、ねじをゆるめるこ
となく針上下位置検出板＋５＋ ＋４の調整用穴（ｓｄ
） 、 （４ｄ）をグー１月３）外より、プーリの抜穴
（３ａ） 。Adjustment of the rotation direction angle of the needle up and down position can be done without loosening the screw by using the adjusting hole (sd
), (4d) 3) From the outside, pull out the pulley hole (3a).
（３ｂ）を通じて回転させることにより行なうことがで
きる。This can be done by rotating through (3b).
また、さらに角度調整を容易にするには第６図に示し九
治具を用いれば可能となる。（ハ）は角度調整用治具で
その先端（２５ａ）を針上下位置検出板（５）（４）の
調整用穴（５ｄ） 、 （４ｄ）に挿入することで容易
に角度調整を行える。Further, the angle adjustment can be further facilitated by using the nine jigs shown in FIG. (C) is an angle adjustment jig, and the angle can be easily adjusted by inserting its tip (25a) into the adjustment holes (5d) and (4d) of the needle up/down position detection plates (5) and (4).
また、針上位置、針下位置調整の区分を明確にするため
には、プーリ抜穴（３ａ） 、 （３ｂ）の近くに設け
た角度目盛の色を針上位置、針下位置で変更すれば良い
。In addition, in order to clearly distinguish between the needle up position and needle down position adjustments, change the color of the angle scale provided near the pulley holes (3a) and (3b) for the needle up position and needle down position. Good.
なお角度目盛の色分けをしないときは別に目印を設けて
も良い。Note that if the angle scale is not color-coded, a separate mark may be provided.
次にこの発明の第２の実施例を図により説明する。第７
図において針上位置検出板（５）はプラスチック等樹脂
材料を用いることにより、針上下位置検出板１５１ （
４１の反射面が同一平面上となるよう凹状に形成されて
いる。°またその円周側にはすべり突起（５ｇ）が設け
られており、すべり板の必要がない。Next, a second embodiment of the invention will be described with reference to the drawings. 7th
In the figure, the needle top position detection plate (5) is made of resin material such as plastic, and the needle top and bottom position detection plate 151 (
The reflective surfaces 41 are formed in a concave shape so that they are on the same plane. Further, a sliding protrusion (5g) is provided on the circumferential side, eliminating the need for a sliding plate.
第８図には、針上位置検出板（５１のミシン機枠側より
見た図を示すが、 （５ｇ）は反射面で樹脂材料の上
にメツキを施しである。（５ｂ）は針上位置に対応する
針上位置検出用透孔、 （５ｃ）は回転速度検出に対
応する回転速度検出用透孔である。（５ｄ）はプーリ（
３）外より針上位置検出板【５）の回転方向調整をする
ために設けられた調整用穴である。（５ｅ）は針下位置
検出板（４）の調整用穴（４ｄ）に対応し針下位置検出
板（４）がプーリ（３）外より調整可能とするよう設け
たにがし穴、 （５ｈ）は断面凹状の底面で樹脂材料
そのものの表面となっており光の吸収を考え黒色となつ
ている、このため第一の実施例では必要となったにがし
透孔（５ｆ）の必要がない。他の構成は第一の実施例と
同一であるが反射面が同一平面上にあるので、それぞれ
の検出器の投光から受光までの距離が一定となるので位
置変更が必要でない。Figure 8 shows a view of the needle top position detection plate (51) seen from the sewing machine frame side. (5g) is a reflective surface plated on the resin material. (5b) is a needle top position detection plate (51). (5c) is a rotational speed detection throughhole corresponding to the rotational speed detection. (5d) is a pulley (
3) This is an adjustment hole provided to adjust the rotational direction of the needle top position detection plate [5] from the outside. (5e) corresponds to the adjustment hole (4d) of the needle down position detection plate (4) and is provided so that the needle down position detection plate (4) can be adjusted from outside the pulley (3); 5h) is the bottom surface with a concave cross-section and is the surface of the resin material itself, and is black in consideration of light absorption. This eliminates the need for the through hole (5f) that was necessary in the first embodiment. There is no. The other configurations are the same as in the first embodiment, but since the reflecting surfaces are on the same plane, the distance from the light emission to the light reception of each detector is constant, so there is no need to change the position.
第９図、第１０図には、第一の実施例、第二の実施例の
変形例を示す。第９図において（５ｊ）はプーリ抜穴（
３ａ）を貫通してグー１月３）外に突出するよう針上位
置検出板（５）に設けられた加力調整部となる調整用突
起である。この調整用突起をブー１月３）外で操作する
ことにより容易に回転角度調整が行える。また図示しな
かったが針下位置検出板＋４１にも同様の調整用突起を
設ければ同じように容易に調整ができる。FIGS. 9 and 10 show modifications of the first embodiment and the second embodiment. In Figure 9, (5j) is the pulley extraction hole (
This is an adjustment protrusion that serves as a force adjustment section provided on the needle top position detection plate (5) so as to penetrate through 3a) and protrude outside. The rotation angle can be easily adjusted by operating this adjusting projection from outside. Further, although not shown, if a similar adjustment protrusion is provided on the needle lower position detection plate +41, adjustment can be made easily in the same way.
さらに第１０図には、針上位置検出板（５）がディスク
状である場合の突起の作り方を示した。金属板の切り曲
げにてすべり突起（５ｇ）と調整用突起（５ｊ）を同時
に形成したものである。第１）図にはその断面を示す。Furthermore, FIG. 10 shows how to make a protrusion when the needle top position detection plate (5) is disk-shaped. A sliding protrusion (5g) and an adjusting protrusion (5j) are simultaneously formed by cutting and bending a metal plate. Figure 1) shows its cross section.
なお上記実施例では８位置検出用の環状体が２個の場合
を示したが、１個の場合でもよい。また。Although the above embodiment shows the case where there are two annular bodies for detecting eight positions, it is also possible to use one annular body. Also.
３個以上でもよい。There may be three or more.
また、上記実施例では環状体の圧接するにすべり板ω、
プレロードスプリングｅｎ、端板翰、Ｃリング（至）、
すべり突起（５ｇ）を用いたが、°他の部材を用いてい
る場合でもよい。In addition, in the above embodiment, the sliding plate ω, which is in pressure contact with the annular body,
Preload spring en, end plate, C ring (to),
Although a sliding protrusion (5 g) was used, other members may also be used.
また、上記実施例では０位置検出に光の送受信を利用し
たが、その他の方法でもよい。Further, although the above embodiment uses transmission and reception of light to detect the 0 position, other methods may be used.
また、上記実施例ではミシンの針位置検出装置の場合を
示したが６支持体と回転体の間に位置検出用部材がある
位置検出装置であればよく、この発明と同様な効果を奏
する。Further, in the above embodiment, a needle position detecting device for a sewing machine is shown, but any position detecting device having a position detecting member between the support member and the rotating body may be used, and the same effects as the present invention can be obtained.
本発明は１以上のとおり構成されているので。 Since the present invention is configured in one or more ways.
以下のような効果を奏する。It has the following effects.
特許請求の範囲第一項記載の位置検出装置においては０
回転体と位置検出用の環状体を圧接しているのでねじが
不用になるとともに１回転体の孔から環状体の加力調整
部に加力して調整できるので簡単に位置が調整できる効
果がある。In the position detection device according to claim 1, 0
Since the rotating body and the annular body for position detection are in pressure contact, there is no need for screws, and adjustment can be made by applying force from the hole in the rotating body to the force adjustment part of the annular body, making it easy to adjust the position. be.
特許請求の範囲第二項記載の位置検出装置においては、
環状体の半径を変えて位置検出部を重ならないようにし
、かつ０回転体側の環状体に孔を設け、この孔を介して
支持体側の環状体の加力調整部をアクセスできるように
したので、環状体が複数あっても、それぞれの位置検出
ができると同時に、それぞれの環状体の位置調整もでき
る効果がある。In the position detection device according to claim 2,
The radius of the annular body was changed so that the position detection parts did not overlap, and a hole was provided in the annular body on the zero rotation body side, so that the force adjustment part of the annular body on the support body side could be accessed through this hole. Even if there are a plurality of annular bodies, the position of each annular body can be detected and the position of each annular body can be adjusted at the same time.
特許請求の範囲第三項記載の位置検出装置においては、
複数の位置検出部を検出器から同一距離に配置したので
検出器の調整や検出信号の処理が容易になる効果がある
。In the position detection device according to claim 3,
Since the plurality of position detection units are arranged at the same distance from the detector, there is an effect that adjustment of the detector and processing of the detection signal are facilitated.
第１図はこの発明の第一の実施例を示す一部断面図。
第２図は検出器の右側面図。
第３図は針下位置検出板を示す図。
第４図は針上位置検出板を示す図。
第５図はグーりの右側面図。
第６図は治具を示す図。
第１図は第二の実施例を示す一部断面図。
第８図は針上位置検出板を示す図。
第９図はこの発明の変形例を示す一部断面図。
第１０図はこの発明の変形例を示す斜視図。
第１）図Ｆｉ第１０図の断面図。
第１２図、第１３図、第１４図、第１５図、第１６図は
従来例を示す図である。
ｆｉｌはミシン機枠、（２）は主軸、（３）はプーリ、
（４）は針下位置検出板、（５）は針上位置検出板、
（６０）は検出器、（７）は取付耳、■はすべり板、
ａＩｌはブレロードスプリング、（イ）は端板、Ｃｌ
３はＣりング、 （３ａ）。
（３ｂ）はプーリ抜穴、 （３ｅ）は角度目盛、
（４ａ）は反射面、 （４ｂ）は針下位置検出用透孔
、 （４ｄ）は調整用穴。
（５ａ）は反射面、 （ｓｂ）は針上位置検出用透孔
、’ （ｓｃ）は回転速度用検出孔、 （５ｄ）Ｆｉ
調整用穴、 （５ｅ）はにがし穴、 （５ｒ）はに
がし透孔、（５ｇ）はすべり突起。
（５ｈ）は底面、 （５１）Ｆ′ｉ、調整用突起であ
る。
なお０図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a partially sectional view showing a first embodiment of the invention. Figure 2 is a right side view of the detector. FIG. 3 is a diagram showing the needle down position detection plate. FIG. 4 is a diagram showing the needle top position detection plate. Figure 5 is a right side view of the goo. FIG. 6 is a diagram showing the jig. FIG. 1 is a partially sectional view showing a second embodiment. FIG. 8 is a diagram showing the needle top position detection plate. FIG. 9 is a partial sectional view showing a modification of the invention. FIG. 10 is a perspective view showing a modification of the invention. 1) A sectional view of Figure Fi in Figure 10. FIG. 12, FIG. 13, FIG. 14, FIG. 15, and FIG. 16 are diagrams showing conventional examples. fil is the sewing machine frame, (2) is the main shaft, (3) is the pulley,
(4) is the needle lower position detection plate, (5) is the needle upper position detection plate,
(60) is the detector, (7) is the mounting ear, ■ is the sliding plate,
aIl is the brake load spring, (A) is the end plate, Cl
3 is C ring, (3a). (3b) is pulley hole, (3e) is angle scale,
(4a) is a reflective surface, (4b) is a through hole for detecting the needle down position, and (4d) is an adjustment hole. (5a) is a reflective surface, (sb) is a through hole for needle top position detection, ' (sc) is a detection hole for rotational speed, (5d) Fi
Adjustment hole, (5e) is a peeling hole, (5r) is a peeling through hole, (5g) is a sliding protrusion. (5h) is the bottom surface, (51) F'i is the adjustment protrusion. Note that in the drawings, the same reference numerals indicate the same or equivalent parts.
Claims (3)
軸に固定されて回転する回転体、 （ｄ）以下の要素を持ち、軸を中心にして支持体と回転
体の間に配置された環状体、 （ｄ１）環状体を回転体とともに回転させるため、環状
体の一部に設けられ回転体方 向に圧力を掛けられた圧接部、 （ｄ２）環状体の所定の位置を知らせるため、環状体の
一部に設けられた位置検出部、 （ｄ３）環状体を回転体と相対的に回動させるため、回
転体の所定形状の孔を介して 力を加える加力調整部、 （ｅ）支持体に固定され、回転する環状体の位置検出部
を検出する検出器。(1) A position detection device having the following elements: (a) a shaft; (b) a support that rotatably supports the shaft; (c) having one or more holes of a predetermined shape penetrating in the axial direction;
A rotating body that is fixed to a shaft and rotates; (d) an annular body having the following elements and placed between the support and the rotating body around the axis; (d1) for causing the annular body to rotate together with the rotating body; , a pressure contact part provided on a part of the annular body and applying pressure in the direction of the rotating body; (d2) a position detection part provided on a part of the annular body to notify a predetermined position of the annular body; (d3) (e) a force adjustment unit that applies force through a hole of a predetermined shape in the rotating body in order to rotate the annular body relative to the rotating body; (e) a position detection unit for the rotating annular body fixed to the support body; Detector to detect.
て、環状体が二つ以上あるとき以下の要素をもつ環状体
を備えたことを特徴とする位置検出装置 （ｆ１）回転体側の環状体の半径を支持体側の環状体の
半径より大きくし、回転体側 の環状体の支持体側の環状体と重なら ない部分に設けられた位置検出部、 （ｆ２）支持体側の環状体の加力調整部に対応して、回
転体側の環状体に設けられた 所定形状の孔。(2) In the position detecting device according to claim 1, when there are two or more annular bodies, the position detecting device is characterized in that the annular body has the following elements (f1) An annular body on the rotating body side The radius of the body is made larger than the radius of the annular body on the support side, and the position detection part is provided in the part of the annular body on the rotating body side that does not overlap with the annular body on the support side; (f2) Force adjustment of the annular body on the support side. A hole of a predetermined shape provided in the annular body on the rotating body side corresponding to the part.
て、回転体側の環状体に軸を中心とする凹部を設けこの
凹部に支持体側の環状体を配置し、同一平面上に配置し
た複数の位置検出体を備えたことを特徴とする位置検出
装置。(3) In the position detection device according to claim 2, a recess centered on the axis is provided in the annular body on the rotating body side, and the annular body on the supporting body side is arranged in this recess, and a plurality of annular bodies arranged on the same plane are provided. A position detection device comprising a position detection body.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32526088A JP2658326B2 (en) | 1988-12-23 | 1988-12-23 | Position detection device |
| CN 89106261 CN1014735B (en) | 1988-12-23 | 1989-07-29 | Position detection device |
| DE19893942719 DE3942719A1 (en) | 1988-12-23 | 1989-12-22 | POSITION DETECTING DEVICE |
| GB8929199A GB2227835A (en) | 1988-12-23 | 1989-12-27 | "Position detecting device" |
| US07/596,664 US5176085A (en) | 1988-12-23 | 1990-10-11 | Position detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32526088A JP2658326B2 (en) | 1988-12-23 | 1988-12-23 | Position detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02168988A true JPH02168988A (en) | 1990-06-29 |
| JP2658326B2 JP2658326B2 (en) | 1997-09-30 |
Family
ID=18174825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32526088A Expired - Lifetime JP2658326B2 (en) | 1988-12-23 | 1988-12-23 | Position detection device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2658326B2 (en) |
| CN (1) | CN1014735B (en) |
| DE (1) | DE3942719A1 (en) |
| GB (1) | GB2227835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848761A (en) * | 2015-05-21 | 2015-08-19 | 苏州市吴中区胥口广博模具加工厂 | Hand-operated half ring detection mechanism of automobile throttle pedal detection apparatus |
| CN106052515A (en) * | 2016-07-08 | 2016-10-26 | 红塔烟草(集团)有限责任公司 | Cigarette packet seal pasting position measurement apparatus and measurement method |
| CN106989649A (en) * | 2016-01-20 | 2017-07-28 | 株洲时代新材料科技股份有限公司 | Paired journal box spring position of mounting hole degree flexible checking implement |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1279945B1 (en) * | 1995-06-13 | 1997-12-23 | Matec Srl | ANNULAR POSITION TRANSDUCER, PARTICULARLY FOR CIRCULAR HOSING MACHINE |
| DE19949020C1 (en) * | 1999-10-11 | 2001-04-05 | Viking Sewing Machines Ab Husk | Sewing machine motor assembly, combines fan wheel, screen wheel and drive wheel into multi-function wheel keyed to the motor drive shaft for electronic speed control |
| DE102005038753B4 (en) * | 2005-08-17 | 2015-02-05 | Dürkopp Adler AG | Test method for a sewing machine and sewing machine for performing such a test method |
| CN104076045B (en) * | 2014-07-04 | 2016-06-15 | 东莞职业技术学院 | Screw detecting machine |
| CN109632792B (en) * | 2018-12-05 | 2022-02-22 | 彩虹（合肥）液晶玻璃有限公司 | Detection mechanism and detection device |
| CN111457844A (en) * | 2020-04-13 | 2020-07-28 | 上海电气风电集团股份有限公司 | Method, system, equipment and medium for detecting bolt looseness in wind driven generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1763859B2 (en) * | 1968-08-23 | 1974-08-15 | Frankl & Kirchner, Fabrik Fuer Elektromotoren U. Elektrische Apparate, 6830 Schwetzingen | Synchronizer for sewing machines |
| HU174770B (en) * | 1977-05-18 | 1980-03-28 | Koolaj Gazipari Tervezo | Device for sensing the rate of turning and sending information and/or intervention signal at turning part of moving respectively driving mechanisms |
| JPS6145081U (en) * | 1984-08-24 | 1986-03-25 | ブラザー工業株式会社 | Sewing machine with needle position detection device |
-
1988
- 1988-12-23 JP JP32526088A patent/JP2658326B2/en not_active Expired - Lifetime
-
1989
- 1989-07-29 CN CN 89106261 patent/CN1014735B/en not_active Expired
- 1989-12-22 DE DE19893942719 patent/DE3942719A1/en active Granted
- 1989-12-27 GB GB8929199A patent/GB2227835A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848761A (en) * | 2015-05-21 | 2015-08-19 | 苏州市吴中区胥口广博模具加工厂 | Hand-operated half ring detection mechanism of automobile throttle pedal detection apparatus |
| CN106989649A (en) * | 2016-01-20 | 2017-07-28 | 株洲时代新材料科技股份有限公司 | Paired journal box spring position of mounting hole degree flexible checking implement |
| CN106052515A (en) * | 2016-07-08 | 2016-10-26 | 红塔烟草(集团)有限责任公司 | Cigarette packet seal pasting position measurement apparatus and measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2658326B2 (en) | 1997-09-30 |
| CN1014735B (en) | 1991-11-13 |
| CN1043762A (en) | 1990-07-11 |
| DE3942719C2 (en) | 1993-04-08 |
| DE3942719A1 (en) | 1990-06-28 |
| GB2227835A (en) | 1990-08-08 |
| GB8929199D0 (en) | 1990-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4218726A (en) | Indicator gauge with illuminated pointer | |
| JPH02168988A (en) | Position detector | |
| JP4780825B2 (en) | Rotation angle sensor for rotating members | |
| US4533830A (en) | Optical encoder with a shutter clutched for directional movement | |
| US4639595A (en) | Optical rotary encoder | |
| JP2019144008A (en) | Crime prevention sensor device | |
| US6150658A (en) | Passive infrared detector | |
| EP0146312B1 (en) | Rotary optical transducer | |
| EP0328686A4 (en) | Deflection-insensitive optical rotary encoder | |
| US5176085A (en) | Position detecting device | |
| US5004915A (en) | Steering angle sensor apparatus | |
| JPS637797B2 (en) | ||
| JPH07134047A (en) | Multiple-rotation encoder | |
| US4385847A (en) | Daisy wheel printer | |
| JPH0332694A (en) | Position detector | |
| EP0055075A3 (en) | Needle position detector | |
| JPH0111188Y2 (en) | ||
| US5497080A (en) | Rotation velosity sensor for a tape reel disk in which light is reflected off of the reel disk | |
| JPH05203464A (en) | Rotary encoder | |
| JP2010063516A (en) | Sewing machine | |
| JPH0236088Y2 (en) | ||
| EP0890842B1 (en) | Optical encoder | |
| US4722492A (en) | Magnetic brake for a fishing reel | |
| JPH0226455Y2 (en) | ||
| JPH09243404A (en) | Encoder, code plate for encoder and its manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080606 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080606 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090606 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090606 Year of fee payment: 12 |