JPH019510Y2 - - Google Patents
Info
- Publication number
- JPH019510Y2 JPH019510Y2 JP1984089857U JP8985784U JPH019510Y2 JP H019510 Y2 JPH019510 Y2 JP H019510Y2 JP 1984089857 U JP1984089857 U JP 1984089857U JP 8985784 U JP8985784 U JP 8985784U JP H019510 Y2 JPH019510 Y2 JP H019510Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- receiving element
- sewing machine
- light
- throat 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.)
- Expired
Links
- 239000004744 fabric Substances 0.000 claims description 20
- 238000009958 sewing Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、布の有無若しくは布の厚みの変化を
検出するためのミシンの検出装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a detection device for a sewing machine for detecting the presence or absence of cloth or a change in the thickness of cloth.
従来この種の装置としては、発光素子及び受光
素子からなる光センサにより加工布の有無を検出
しているものがあり、特にミシンの上方アームに
発光素子が設置され、ミシンのベツド上に着脱可
能に設置された針板に、その発光素子からの投射
光を受光する受光素子が固定されたものがあつ
た。
Conventionally, this type of device uses an optical sensor consisting of a light emitting element and a light receiving element to detect the presence or absence of workpiece cloth.In particular, the light emitting element is installed in the upper arm of the sewing machine, and can be attached or removed from the bed of the sewing machine. In some cases, a light-receiving element that receives the projected light from the light-emitting element is fixed to the throat plate installed in the needle plate.
ミシンにおいては、作業者は使用する針の太さ
を変更した場合、あるいは受光素子の検出位置を
変更する場合等には針板を交換しなければならな
いものであるが、針板に受光素子を設置する方式
であると、使用しない針板にまで受光素子を設置
しておかなければならず、コストアツプの原因と
なつていた。
In sewing machines, when the operator changes the thickness of the needle used or changes the detection position of the light-receiving element, the operator must replace the throat plate. If this method is used, the light receiving element must be installed even on the throat plate that is not used, which causes an increase in costs.
本考案は従来の欠点を解消するためになされた
ものであり、その目的は針板のみの交換が容易で
あり、安価なミシンの検出装置を提供することに
ある。
The present invention has been devised to overcome the drawbacks of the conventional sewing machine, and its purpose is to provide an inexpensive sewing machine detection device in which only the throat plate can be easily replaced.
本考案はミシンのベツドに着脱可能に設置され
た針板上の予め決められた位置にむけて検出光を
投射する発光素子と、その検出光を受光する受光
素子と、前記針板の前記検出光の投射位置に穿設
された貫通孔と、前記受光素子と発光素子の少な
くとも何れか一方を前記針板の貫通孔中に位置さ
せるように支持すると共に、前記ベツドに設置さ
れた支持体とから構成されている。
The present invention includes a light-emitting element that projects detection light toward a predetermined position on the throat plate that is removably installed in the bed of a sewing machine, a light-receiving element that receives the detection light, and a detection element on the throat plate. a through hole drilled at a light projection position; a support body installed in the bed; and a support body supporting at least one of the light receiving element and the light emitting element so as to be positioned in the through hole of the throat plate; It consists of
本考案は、針板の貫通孔上に加工布が配置され
ている時に、受光素子が加工布の存在若しくは厚
みの変化を検出し、貫通孔上に加工布が配置され
ていない時に、受光素子が加工布の不存在を検出
する。
In the present invention, when the workpiece cloth is placed over the through-hole of the throat plate, the light-receiving element detects the presence of the workpiece cloth or a change in thickness, and when the workpiece cloth is not placed over the through-hole, the light-receiving element detects the presence of the workpiece cloth or a change in thickness. detects the absence of work cloth.
以下に本考案を具体化した一実施例を参照して
その詳細を説明する。
The details will be explained below with reference to an embodiment embodying the present invention.
図において、ミシンのベツド１の上面には針板
２が着脱可能に設置されており、その針板２には
針孔３及び送り歯侵入孔４が穿設されていると共
に、前記針孔３を通る布送り線Ｆに対して第２図
における左方に貫通孔５が穿設されている。 In the figure, a needle plate 2 is removably installed on the top surface of a bed 1 of the sewing machine, and the needle plate 2 is provided with a needle hole 3 and a feed dog entry hole 4. A through hole 5 is bored on the left side in FIG. 2 with respect to the cloth feed line F passing through.
前記ベツド１の下面には突出部６が一体に形成
されており、その下端面６１は前記ベツド１に設
置された針板２の上面と平行な平坦面になるよう
に形成されている。第１の支持体７はＬ字状に折
曲形成され、基端部７１及びそれに直交する方向
に延びる立垂部７２から構成されており、その基
端部７１は前記立垂部７２の側面と平行な方向に
延びる第１の長孔７３が穿設されると共に、その
長孔７３を通る第１のねじ８により前記突出部６
の下端面６１に固定され、その下端面６１上を移
動調節可能である。第２の支持体９は、一端に第
２の長孔９１が穿設されると共に、他端に前記長
孔９１と平行に延びる受光素子１２が設置されて
おり、前記長孔９１を通る２個の第２のねじ１０
により前記第１の支持体７の立垂部７２に固定さ
れ、前記針板２に対して直交する方向に移動調節
可能である。この受光素子１２は前記針板２の貫
通孔５中に配置されていると共に、後述する発光
素子１４の赤外線からなる投射光を検出するよう
に構成されている。 A protrusion 6 is integrally formed on the lower surface of the bed 1, and its lower end surface 61 is formed to be a flat surface parallel to the upper surface of the throat plate 2 installed on the bed 1. The first support body 7 is bent into an L-shape and includes a base end 71 and a vertical part 72 extending in a direction perpendicular to the base end part 71 . A first elongated hole 73 extending in a direction parallel to the protruding portion 6 is bored, and the first screw 8 passing through the elongated hole 73 is inserted into the protrusion 6.
It is fixed to the lower end surface 61 of and can be moved and adjusted on the lower end surface 61. The second support 9 has a second elongated hole 91 bored at one end, a light receiving element 12 extending parallel to the elongated hole 91 at the other end, and a second elongated hole 91 passing through the elongated hole 91. second screws 10
It is fixed to the vertical portion 72 of the first support 7 and can be adjusted to move in a direction perpendicular to the throat plate 2. This light receiving element 12 is arranged in the through hole 5 of the needle plate 2, and is configured to detect infrared light projected from a light emitting element 14, which will be described later.
一方、ミシンの上方アームの頭部１５には、下
端部に発光素子１４が設置された保持体１６がね
じ１７により固定されており、この保持体１６
は、発光素子１４が前記針板２の貫通孔５中に配
置された受光素子１２に対向するように調節され
る。前記発光素子１４は赤外線を第１図における
軸線Ｒに沿つて受光素子１２に投射するように構
成されている。また、針棒１８に設置された針２
０は公知の縫目形成運動を行なうものである。 On the other hand, a holder 16 having a light emitting element 14 installed at its lower end is fixed to the head 15 of the upper arm of the sewing machine with a screw 17.
is adjusted so that the light emitting element 14 faces the light receiving element 12 arranged in the through hole 5 of the needle plate 2. The light emitting element 14 is configured to project infrared rays onto the light receiving element 12 along the axis R in FIG. In addition, the needle 2 installed on the needle bar 18
0 performs a known seam forming movement.
次に作用を説明する。 Next, the action will be explained.
本考案においては、ミシンのベツド１上に配置
された加工布２１が針板２の貫通孔５上にある
時、発光素子１４からの赤外線は加工布２１にし
や断されるため、受光素子１２は受光せず加工布
２１の存在が検出される。一方、加工布２１が貫
通孔５上にない時、発光素子１４からの赤外線は
貫通孔５中の受光素子１２に受光され、加工布２
１の不存在が検出される。 In the present invention, when the work cloth 21 placed on the bed 1 of the sewing machine is above the through hole 5 of the throat plate 2, the infrared rays from the light emitting element 14 are cut off by the work cloth 21. does not receive light, and the presence of the work cloth 21 is detected. On the other hand, when the work cloth 21 is not above the through hole 5, the infrared rays from the light emitting element 14 are received by the light receiving element 12 in the through hole 5, and the work cloth 21
The absence of 1 is detected.
次に作業者は使用する針２０の交換を行なう
時、針２０の太さの変化により、針板２を適正な
大きさの針孔３の穿設されたものに交換する必要
がある。この時、受光素子１２は、ベツド１に固
定された支持体７，９に取り付けられているの
で、針板２のみの交換に支承をきたすことはな
く、容易に針板２のみの交換をすることができ
る。 Next, when the operator replaces the needle 20 to be used, due to the change in the thickness of the needle 20, it is necessary to replace the throat plate 2 with one that has a needle hole 3 of an appropriate size. At this time, since the light receiving element 12 is attached to the supports 7 and 9 fixed to the bed 1, the replacement of only the throat plate 2 does not require support, and only the throat plate 2 can be replaced easily. be able to.
また、針板２の厚さが異なるものを交換する
時、作業者は第２のねじ１０をゆるめて、受光素
子１２の貫通孔５中の位置が、針板２上面に一致
するように第２の支持体９を上下方向に移動調節
すればよい。 Also, when replacing a throat plate 2 with a different thickness, the operator loosens the second screw 10 and adjusts the second screw 10 so that the position of the light receiving element 12 in the through hole 5 coincides with the upper surface of the throat plate 2. The second support body 9 may be moved and adjusted in the vertical direction.
更に、針板２上の貫通孔５の位置は種々の針板
毎に変化しているので、作業者は第１及び第２の
ねじ８，１０をゆるめて受光素子１２が貫通孔５
中に位置するように第１及び第２の支持体７，９
を移動調節すればよい。 Furthermore, since the position of the through hole 5 on the throat plate 2 changes for each throat plate, the operator must loosen the first and second screws 8 and 10 so that the light receiving element 12 is aligned with the through hole 5.
The first and second supports 7,9 are located in
Just move and adjust.
尚、本考案は前述の実施例のみに限定されるも
のではなく、発光素子１４の第２の支持体９に設
置し、受光素子１２を保持体１６に設置してもよ
い。また、前記発光素子１４及び受光素子１２を
前記第２の支持体９上に設置し、赤外線を針板２
の下方から貫通孔５を通して加工布２１に投射
し、反射された赤外線を受光素子１２が検出する
反射型の検出装置にも応用できる。 Note that the present invention is not limited to the above-described embodiments, and the light emitting element 14 may be installed on the second support 9 and the light receiving element 12 may be installed on the holder 16. Further, the light emitting element 14 and the light receiving element 12 are installed on the second support 9, and the infrared rays are emitted to the throat plate 2.
It can also be applied to a reflection type detection device in which the infrared rays are projected onto the work cloth 21 from below through the through hole 5 and the reflected infrared rays are detected by the light receiving element 12.
本考案は、ミシンのベツドに着脱可能に設置さ
れた針板に貫通孔を形成し、受光素子をその貫通
孔中に位置させるように支持する支持体を前記ベ
ツド内に取付けたので、たとえば使用する針の太
さを変更した場合には、受光素子を支持体を介し
てミシンのベツドに設置したままの状態で針板の
みの交換が可能であり、安価なミシンの検出装置
を提供することができる。
In the present invention, a through-hole is formed in the throat plate which is removably installed in the bed of the sewing machine, and a support body is installed in the bed to support the light-receiving element so that it is located in the through-hole. To provide an inexpensive detection device for a sewing machine in which only the needle plate can be replaced while the light receiving element remains installed in the bed of the sewing machine via a support when the thickness of the needle to be used is changed. Can be done.
また、前記支持体がベツドに対して布送り線方
向に移動調節可能に取付けられているので、たと
えば受光素子の検出位置を変更するために針板を
貫通孔の位置が異なるものに交換する場合には、
前記支持体に支持されている受光素子の位置を調
節して貫通孔中に位置させることができる。 Furthermore, since the support body is attached to the bed so that it can be moved and adjusted in the direction of the cloth feed line, for example, when replacing the throat plate with one with a different through-hole position in order to change the detection position of the light receiving element, for,
The position of the light receiving element supported by the support body can be adjusted to be located in the through hole.
第１図は本願考案を具体化した一実施例を示
し、ベツド部分を断面にした左側面図、第２図は
針板及び支持体等を示す分解斜視図である。
１はベツド、２は針板、３は針孔、５は貫通
孔、７，９は支持体、１２は受光素子、１４は発
光素子、１５は頭部、２１は加工布、Ｆは布送り
線である。
FIG. 1 shows an embodiment embodying the present invention, and is a left side view with the bed section taken in section, and FIG. 2 is an exploded perspective view showing the throat plate, support, etc. 1 is the bed, 2 is the throat plate, 3 is the needle hole, 5 is the through hole, 7 and 9 are the supports, 12 is the light receiving element, 14 is the light emitting element, 15 is the head, 21 is the processed cloth, and F is the cloth feeder. It is a line.
Claims (1)
２と、 その針板２の針孔３よりも布送り込み側に形成
された貫通孔５と、 受光素子１２を支持すると共に、その受光素子
１２を前記貫通孔５内に位置させるため、前記ミ
シンのベツド１内に布送り線Ｆ方向に移動調節可
能に取付けられた支持体７，９と、 ミシンの頭部１５に取付けられ、前記貫通孔５
内の受光素子１２に検出光を投射する発光素子１
４と を備えたことを特徴とするミシンの検出装置。[Scope of Claim for Utility Model Registration] A throat plate 2 removably installed in the bed 1 of a sewing machine, a through hole 5 formed on the cloth feeding side of the needle hole 3 of the throat plate 2, and a light receiving element 12. Supports 7 and 9 are installed in the bed 1 of the sewing machine so as to be movable and adjustable in the direction of the fabric feed line F in order to support the sewing machine and position the light receiving element 12 in the through hole 5, and the head of the sewing machine. 15, and the through hole 5
A light emitting element 1 that projects detection light onto a light receiving element 12 inside the
4. A detection device for a sewing machine, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8985784U JPS616386U (en) | 1984-06-15 | 1984-06-15 | Sewing machine detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8985784U JPS616386U (en) | 1984-06-15 | 1984-06-15 | Sewing machine detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS616386U JPS616386U (en) | 1986-01-16 |
| JPH019510Y2 true JPH019510Y2 (en) | 1989-03-15 |
Family
ID=30644331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8985784U Granted JPS616386U (en) | 1984-06-15 | 1984-06-15 | Sewing machine detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616386U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985185A (en) * | 1982-11-05 | 1984-05-17 | Sharp Corp | Television receiver |
| JPS5988197A (en) * | 1982-10-06 | 1984-05-22 | デユルコツプウエルケ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Method and apparatus for positional determination of final needle eyelet to predetermined position in stitch article |
-
1984
- 1984-06-15 JP JP8985784U patent/JPS616386U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5988197A (en) * | 1982-10-06 | 1984-05-22 | デユルコツプウエルケ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Method and apparatus for positional determination of final needle eyelet to predetermined position in stitch article |
| JPS5985185A (en) * | 1982-11-05 | 1984-05-17 | Sharp Corp | Television receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616386U (en) | 1986-01-16 |
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