JP2613007B2 - Sewing machine bite - Google Patents
Sewing machine biteInfo
- Publication number
- JP2613007B2 JP2613007B2 JP5261317A JP26131793A JP2613007B2 JP 2613007 B2 JP2613007 B2 JP 2613007B2 JP 5261317 A JP5261317 A JP 5261317A JP 26131793 A JP26131793 A JP 26131793A JP 2613007 B2 JP2613007 B2 JP 2613007B2
- Authority
- JP
- Japan
- Prior art keywords
- rail
- hook
- sewing machine
- synthetic resin
- bite
- 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 - Lifetime
Links
Landscapes
- Sewing Machines And Sewing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、たとえば本縫いミシン
に備えられる垂直全回転かまなどのミシンの内かまに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner hook of a sewing machine such as, for example, a vertical full rotation kettle provided in a lockstitch sewing machine.
【０００２】[0002]
【従来の技術】従来から、全回転かまの内かまおよび外
かまは、ステンレス鋼または鋼鉄などが鍛造加工されて
構成され、内かまに形成された軌条が外かまの軌溝に嵌
まり込み、外かまが高速度で回転されて縫目が形成され
る。したがって内かまの軌条と外かまの軌溝との摩擦が
大きく、そのため外かまの回転駆動を行うに必要なトル
クを低減することが要求されている。また軌条および軌
溝に摩耗が生じるとがたつきを生じ、縫い性能が低下す
る。2. Description of the Related Art Conventionally, the inner bit and the outer bit of a full-rotating bit are formed by forging stainless steel or steel, and a rail formed on the inner bit fits into a rail groove of an outer bit. The outer hook is rotated at high speed to form a seam. Therefore, the friction between the inner rail and the outer rail groove is large, and therefore, it is required to reduce the torque required to drive the outer shaft to rotate. Further, when the rails and the grooves are worn, rattling occurs and sewing performance deteriorates.
【０００３】また内かまの軌条と外かまの軌溝との摩擦
が大きいので、上糸が内かまの回り止め凹所とそれに嵌
まり込んでいるミシン機体に取付けられている内かまの
回り止め部材との当接面を通り抜けるときに上糸に大き
な張力が発生し、縫い性能が低下し、また糸切れが生じ
やすいという問題がある。[0003] Further, since the friction between the rail of the inner bite and the groove of the outer bite is large, the detent of the inner bite attached to the sewing machine body in which the upper thread is fitted to the detent of the inner bite and the recess is fitted. There is a problem that a large tension is generated in the upper thread when passing through the contact surface with the member, the sewing performance is reduced, and the thread is likely to break.
【０００４】また先行技術では、上糸と内かまとの接触
時の摩擦が大きく、前記上糸に作用する張力が大きくな
って縫い性能が低下するという問題がある。Further, in the prior art, there is a problem that the friction at the time of contact between the upper thread and the inner hook is large, the tension acting on the upper thread is increased, and the sewing performance is reduced.
【０００５】またミシンのかまは、ステンレス鋼または
鋼鉄製であるので、相互に当接または摺動する部位で
は、騒音が発生するという問題がある。[0005] Further, since the hook of the sewing machine is made of stainless steel or steel, there is a problem in that noise is generated at portions where the sewing machine touches or slides with each other.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、内か
まの軌条と外かまの軌溝との摩擦を低減し、小さいトル
クで外かまを回転駆動することができ、また摩耗を低減
して長寿命とすることができ、かつ上糸と内かまなどの
ミシンのかまとが接触するときの摩擦を低減し、縫い性
能の向上を図ることができ、さらに騒音を防止すること
ができるミシンの内かまを提供することである。SUMMARY OF THE INVENTION An object of the present invention is to reduce the friction between the rail of the inner hook and the groove of the outer hook, to rotate the outer hook with a small torque, and to reduce wear. The sewing machine can reduce the friction when the upper thread and the sewing machine such as the inner sewing machine come into contact with each other, improve the sewing performance, and prevent noise. It is to provide the inner bite.
【０００７】[0007]
【課題を解決するための手段】本発明は、内かま１にお
いて、一部分１７ａと他の部分１９ａとが一体となって
構成され、前記一部分１７ａは、内かま１の軸線Ｌ１を
含む鉛直面に関して周方向にほぼ左右対称な角度の範囲
を占めて、上糸ループのたるみ吸収用のフランジの一部
１０ａを含み、内かま１の軸線Ｌ１に垂直な軌条８を含
む鉛直面よりも内かま１の解放端側にあり、針落ち穴１
６と内かままわり止め凹所９とが形成され、前記他の部
分１９ａは、軌条８の全てと、フランジの残り部分１０
とを含み、前記一部分１７ａは、金属粉末またはセラミ
ック粉末を含む合成樹脂から成り、前記他の部分１９ａ
は、合成樹脂から成ることを特徴とするミシンの内かま
である。According to the present invention, a part 17a and another part 19a are integrally formed in an inner furnace 1, and the part 17a is formed with respect to a vertical plane including an axis L1 of the inner furnace 1. The inner hook 1 occupies an approximately symmetrical angle range in the circumferential direction, includes a part 10a of the slack absorbing flange of the upper thread loop, and has an inner hook 1 that is lower than a vertical plane that includes a rail 8 perpendicular to the axis L1 of the inner hook 1. Of the needle drop hole
6 and an inner pin stop 9 are formed, said other part 19a being composed of all of the rail 8 and the remaining part 10 of the flange.
The portion 17a is made of synthetic resin containing metal powder or ceramic powder, and the other portion 19a
Is a sewing machine made of a synthetic resin.
【０００８】[0008]
【作用】本発明に従えば、内かまの前記一部分１７ａと
１９ａとは、一体的に形成され、一部分１７ａは金属粉
末またはセラミック粉末を含む合成樹脂から成り、前記
他の部分１９ａは合成樹脂から成り、したがって前記一
部分の強度が向上され、内かまの軌条と外かまの軌溝と
の摩擦を低減して、外かまの回転駆動時のトルクを低減
し、円滑でかつ安定した外かまの高速回転を可能にし、
これによって縫製品質の向上を図ることができるように
なる。According to the present invention, the portions 17a and 19a of the inner kettle are integrally formed, the portion 17a is made of synthetic resin containing metal powder or ceramic powder, and the other portion 19a is made of synthetic resin. Therefore, the strength of the part is improved, the friction between the inner rail and the outer rail groove is reduced, the torque at the time of rotation driving of the outer hook is reduced, and the smooth and stable high speed of the outer hook is reduced. Enable rotation,
Thereby, the quality of the sewn product can be improved.
【０００９】[0009]
【実施例】図１は、本発明の前提となる垂直全回転かま
に用いられる内かま１の斜視図である。内かま１は、基
本的には内かま本体２と、この内かま本体２の外周に形
成された軌条８とから成り、内かま本体２は軌条８付近
で筒部７と底部１１とに分けられる。筒部７の一端部に
は、内かま回り止め凹所９を有するフランジ部１０が形
成される。軌条８は、内かま回り止め凹所９に関して外
かまの回転方向５の下流側に糸分け部１２が形成され、
上流側に糸抜け部１３が形成される。前記底部１１の底
面１４にはスタッド２２が立設され、このスタッド２２
はボビンを挿通し、その先端部がボビンケースに係止さ
れる。軌条８は、鉄またはセラミックから成る外かまに
形成された軌溝に嵌まり込み、外かまは高速度で回転さ
れる。針は内かま１に形成されている針落ち穴１６を通
過して昇降往復駆動される。FIG. 1 is a perspective view of an inner kettle 1 used for a vertical full-rotation kettle on which the present invention is based. The inner furnace 1 basically includes an inner furnace main body 2 and a rail 8 formed on the outer periphery of the inner furnace main body 2. The inner furnace main body 2 is divided into a cylindrical portion 7 and a bottom portion 11 near the rail 8. Can be At one end of the cylindrical portion 7, a flange portion 10 having an inner pinhole 9 is formed. The rail 8 has a thread splitting portion 12 formed on the downstream side in the rotation direction 5 of the outer hook with respect to the inner hook detent recess 9,
A yarn pull-out portion 13 is formed on the upstream side. A stud 22 is provided upright on the bottom surface 14 of the bottom portion 11.
Penetrates the bobbin, and its tip is locked to the bobbin case. The rail 8 fits into a rail groove formed in an outer basket made of iron or ceramic, and the outer basket is rotated at a high speed. The needle passes through a needle drop hole 16 formed in the inner kettle 1 and is reciprocated up and down.
【００１０】図２は、内かま１の分解斜視図である。筒
部７および軌条８は、金属、たとえばステンレス鋼また
は鉄から成り、耐摩耗性に優れる。また、底部１１は合
成樹脂から成り、前記合成樹脂としては、フッ素樹脂た
とえばポリテトラフルオロエチレン（略称「ＰＴＦ
Ｅ」）が好適に用いられる。ＰＴＦＥは、テトラフルオ
ロエチレンの共重合体であり、耐熱性、耐薬品性および
耐衝撃性に優れている。FIG. 2 is an exploded perspective view of the inner kettle 1. The cylindrical portion 7 and the rail 8 are made of metal, for example, stainless steel or iron, and have excellent wear resistance. The bottom portion 11 is made of a synthetic resin. As the synthetic resin, a fluorine resin such as polytetrafluoroethylene (abbreviated as “PTF”) is used.
E ") is preferably used. PTFE is a copolymer of tetrafluoroethylene and has excellent heat resistance, chemical resistance and impact resistance.
【００１１】以上のように筒部７および軌条８を金属製
とし、底部１１を合成樹脂製としたので、針が誤って針
落ち穴１６付近に当接または摺動したときであっても、
筒部７は破損または摩耗するおそれがなく、軌条８の摩
耗が低減される。しかも底部１１は合成樹脂であり摩擦
係数が小さいので、上糸が内かま１の底部１１に沿って
摺動するときの底部１１の外表面と上糸との摩擦が小さ
く、前記上糸に作用する張力がむやみに変化することが
ない。したがって縫い性能を向上させることができると
ともに、射出成形によって製造することができるので生
産性がよい。As described above, since the cylindrical portion 7 and the rail 8 are made of metal and the bottom portion 11 is made of synthetic resin, even if the needle accidentally comes into contact with or slides near the needle drop hole 16,
There is no risk of the tube portion 7 being damaged or worn, and the wear of the rail 8 is reduced. Moreover, since the bottom 11 is made of a synthetic resin and has a small coefficient of friction, the friction between the outer surface of the bottom 11 and the upper thread when the upper thread slides along the bottom 11 of the inner hook 1 is small, and acts on the upper thread. The applied tension does not change unnecessarily. Therefore, the sewing performance can be improved, and the product can be manufactured by injection molding, so that productivity is high.
【００１２】前述の前提となる構成の垂直全回転かまに
おける筒部７および軌条８をセラミックを用いて形成し
てもよい。The cylindrical portion 7 and the rail 8 in the vertical full rotation kettle having the above-mentioned premise may be formed of ceramic.
【００１３】このセラミックは、一般的に、酸化アルミ
ニウム（Ａｌ2Ｏ3）あるいはこれに少量の他の金属酸化
物や結合材を添加してプレス成形して焼結したものであ
り、約１１００℃程度までその硬さが変化しない。比熱
は超合金の約４倍であり、また熱伝導率は超硬合金の約
２分の１であり、熱膨張が少ない。しかも超硬合金は約
１０００℃以上でかなり酸化変質するけれども、セラミ
ックは約２０００℃まで安定であり、大部分の金属に対
して親和性が低いために他の物体との溶着が起こりにく
く摩耗に強いという特性を示している。This ceramic is generally obtained by adding aluminum oxide (Al 2 O 3 ) or a small amount of another metal oxide or a binder thereto, press-molding and sintering the ceramic, at about 1100 ° C. The hardness does not change to the extent. The specific heat is about four times that of the superalloy, and the thermal conductivity is about one-half that of the cemented carbide, and the thermal expansion is small. In addition, although cemented carbides are considerably oxidized and degraded above about 1000 ° C, ceramics are stable up to about 2000 ° C and have low affinity for most metals. It shows the characteristic of being strong.
【００１４】以上のように筒部７および軌条８はセラミ
ック製であるので、耐熱性および耐摩耗性に優れてお
り、相互に摺動する部分、たとえば前記軌条８および外
かまの軌溝における焼付きなどの発生を防ぐことができ
る。しかもセラミックは摩擦係数が小さいので、たとえ
ば内かまの外表面などの糸が摺動する部分において糸滑
りが円滑に行われ、糸に作用する張力がむやみに変化せ
ず、縫い性能が向上する。As described above, since the cylindrical portion 7 and the rail 8 are made of ceramic, they are excellent in heat resistance and abrasion resistance. The occurrence of sticking can be prevented. Moreover, since the coefficient of friction of the ceramic is small, the thread slips smoothly in a portion where the thread slides, for example, on the outer surface of the inner hook, the tension acting on the thread does not change unnecessarily, and the sewing performance is improved.
【００１５】以上のように前記筒部７は、射出成形によ
って製造されるため、複雑な形状を有する内かま本体２
を容易に製造することができ、先行技術における鉄など
の材料から成るかまに比べて製造が極めて容易である。
しかも筒部７は酸化アルミニウム製であるので、合成樹
脂だけのものに比べて強度を向上することができるとと
もに、金属製の内かまに比べて軽量化を図ることがで
き、したがってこの内かま１が備えられるミシン全体の
重量を低減して軽量化することができる。また、糸が摺
動する部分では糸滑りが円滑に行われ、糸の摺動時にお
ける張力がむやみに変化してしまうことを防止すること
ができる。また、焼付きを防止して摩耗量が少なくなる
ことによって、内かまの寿命を長くすることが可能とな
り、耐久性が向上される。As described above, since the cylindrical portion 7 is manufactured by injection molding, the inner kettle body 2 having a complicated shape is formed.
Can be easily manufactured, and it is extremely easy to manufacture compared to the prior art made of a material such as iron.
In addition, since the cylindrical portion 7 is made of aluminum oxide, the strength can be improved as compared with the case where only the synthetic resin is used, and the weight can be reduced as compared with the case where the metal is used. The weight of the entire sewing machine provided with is reduced and the weight can be reduced. Further, in the portion where the yarn slides, the yarn slides smoothly, and it is possible to prevent the tension during the sliding of the yarn from changing unnecessarily. Further, by preventing seizure and reducing the amount of wear, the life of the inner kettle can be extended, and the durability can be improved.
【００１６】図３は本発明の他の前提となる内かま４２
の斜視図であり、図４はその分解斜視図である。内かま
４２は、前述の図１および図２に示す内かま１とほぼ同
様の構成を有し、対応する部分は同一の参照符号を付
す。特筆すべきは、内かま４２の針落ち穴１６が形成さ
れる針落ち側である一部分１７は、内かま４２の回転軸
線Ａに平行な切断面１８によって他の部分１１と分けら
れる。前記一部分１７は、金属粉末またはセラミック粉
末を含む合成樹脂から成り、他の部分１９は合成樹脂か
ら成る。FIG. 3 shows an inner furnace 42 which is another premise of the present invention.
FIG. 4 is an exploded perspective view of FIG. The inner hook 42 has substantially the same configuration as the inner hook 1 shown in FIGS. 1 and 2 described above, and the corresponding parts are denoted by the same reference numerals. It should be noted that the part 17 of the inner kettle 42 on the needle drop side where the needle drop hole 16 is formed is separated from the other part 11 by a cut surface 18 parallel to the rotation axis A of the inner kettle 42. The part 17 is made of synthetic resin containing metal powder or ceramic powder, and the other part 19 is made of synthetic resin.
【００１７】図５は、本発明の一実施例の内かま４３を
示す分解斜視図である。この実施例の図３および図４に
示す前述の構成と対応する部分には同一の参照符号を付
す。注目すべきはこの実施例の内かま４３はその一部分
１７ａと他の部分１９ａとから成り、前記一部分１７ａ
は、針落ち穴１６とその付近だけを含み、切断面２０に
よって両部分１７ａ，１９ａが固着されている。前記一
部分１７ａは、前述の図３および図４に関連して述べた
構成の前記一部分１７と同様に、金属粉末またはセラミ
ック粉末を含む合成樹脂から成る。また他の部分１９ａ
は、前述の図３および図４に関連して述べた構成におけ
る前記他の部分１９と同様に合成樹脂から成る。FIG. 5 is an exploded perspective view showing an inner pot 43 according to one embodiment of the present invention. Parts corresponding to the above-described configuration shown in FIGS. 3 and 4 of this embodiment are denoted by the same reference numerals. It should be noted that the pot 43 in this embodiment comprises a part 17a and another part 19a,
Includes only the needle drop hole 16 and its vicinity, and the two portions 17a and 19a are fixed by the cut surface 20. The portion 17a is made of a synthetic resin containing a metal powder or a ceramic powder, similarly to the portion 17 having the configuration described with reference to FIGS. Another part 19a
Is made of a synthetic resin similarly to the other portion 19 in the configuration described with reference to FIGS.
【００１８】図５の実施例の構成をさらに詳しく述べる
と、本縫いミシンの垂直全回転かまの内かま４３におい
て、一部分１７ａと他の部分１９ａとが一体となって構
成される。一部分１７ａは、内かま４３の軸線Ｌ１を含
む鉛直面に関して周方向にほぼ左右対称な角度の範囲を
占めて、上糸ループのたるみ吸収用のフランジの一部１
０ａを含み、針落ち穴１６と内かままわり止め凹所９と
が形成され、図５に示す間隔Ｌだけ内かま４３の軸線に
垂直な軌条８を含む鉛直面よりも内かま４３の解放端側
（図５の上方）にある。他の部分１９ａは、軌条８の全
てと、フランジの残りの部分１０とを含む。The construction of the embodiment shown in FIG. 5 will be described in further detail. In the inner hook 43 of the vertical full rotation hook of the lockstitch sewing machine, the portion 17a and the other portion 19a are integrally formed. The portion 17a occupies a substantially symmetrical angle in the circumferential direction with respect to the vertical plane including the axis L1 of the inner hook 43, and the portion 17a of the flange for absorbing the slack of the upper thread loop.
0a, a needle drop hole 16 and an inner bite stopper 9 are formed, and the open end of the inner bite 43 than the vertical plane containing the rail 8 perpendicular to the axis of the inner bite 43 by a distance L shown in FIG. Side (upper side of FIG. 5). The other part 19a comprises all of the rail 8 and the remaining part 10 of the flange.
【００１９】また、本実施例に従う内かま１，４２，４
３が嵌まり込む外かまの軌溝に合成樹脂製の被覆層を形
成してもよい。Further, according to the present embodiment, the inner kettles 1, 42, 4
A coating layer made of a synthetic resin may be formed in the outer groove of the outer hook into which 3 is fitted.
【００２０】[0020]
【発明の効果】本発明によれば、内かま本体の針落ち穴
を形成する一部分を、金属粉末またはセラミック粉末を
含む合成樹脂によって形成し、残余の他の部分を合成樹
脂製としたので、前記一部分の強度を向上するととも
に、外かまの回転駆動に必要なトルクを低減し、相互に
当接または摺動する部分の騒音の低下を図ることがで
き、しかも射出成形などによって容易に製造することが
できるようになる。According to the present invention, a part forming the needle drop hole of the inner kettle body is formed of a synthetic resin containing metal powder or ceramic powder, and the other part is made of synthetic resin. The strength of the part can be improved, the torque required for the rotary drive of the outer hook can be reduced, the noise of the parts that abut or slide with each other can be reduced, and it can be easily manufactured by injection molding or the like. Will be able to do it.
【図１】本発明の前提となる垂直全回転かまに用いられ
る内かま１の斜視図である。FIG. 1 is a perspective view of an inner kettle 1 used for a vertical full rotation kettle as a premise of the present invention.
【図２】図１に示す内かま１の分解斜視図である。FIG. 2 is an exploded perspective view of the inner hook 1 shown in FIG.
【図３】本発明の他の前提となる内かま４２の斜視図で
ある。FIG. 3 is a perspective view of an inner hook 42 as another premise of the present invention.
【図４】図３に示す内かま４２の分解斜視図である。FIG. 4 is an exploded perspective view of the inner hook 42 shown in FIG.
【図５】本発明の一実施例の内かま４３を示す分解斜視
図である。FIG. 5 is an exploded perspective view showing the inner hook 43 of one embodiment of the present invention.
１，４２，４３ 内かま ２ 内かま本体 ５ 外かま回転方向 ７ 筒部 ８，３４ 軌条 １１ 底部 １３ 糸抜け部 １６ 針落ち穴 １７，１７ａ （内かまの）一部分 １９，１９ａ 他の部分 1, 42, 43 Inner bite 2 Inner bite body 5 Outer bite rotation direction 7 Cylindrical part 8, 34 Rail 11 Bottom part 13 Thread dropout part 16 Needle drop hole 17, 17a (Inner bite) part 19, 19a Other part
Claims (1)
れ、 前記一部分１７ａは、 内かま１の軸線Ｌ１を含む鉛直面に関して周方向にほぼ
左右対称な角度の範囲を占めて、上糸ループのたるみ吸
収用のフランジの一部１０ａを含み、 内かま１の軸線Ｌ１に垂直な軌条８を含む鉛直面よりも
内かま１の解放端側にあり、針落ち穴１６と内かままわ
り止め凹所９とが形成され、 前記他の部分１９ａは、 軌条８の全てと、 フランジの残り部分１０とを含み、 前記一部分１７ａは、金属粉末またはセラミック粉末を
含む合成樹脂から成り、 前記他の部分１９ａは、合成樹脂から成ることを特徴と
するミシンの内かま。1. In the inner furnace 1, a part 17a and another part 19a are integrally formed, and the part 17a has a substantially symmetrical angle in the circumferential direction with respect to a vertical plane including the axis L1 of the inner furnace 1. And includes a part 10a of a flange for absorbing the slack of the upper thread loop, and is located on the open end side of the inner hook 1 with respect to a vertical plane including a rail 8 perpendicular to the axis L1 of the inner hook 1, and has a needle A drop hole 16 and an inner pin stop 9 are formed, the other portion 19a includes all of the rails 8 and the remaining portion 10 of the flange, and the portion 17a includes metal powder or ceramic powder. The sewing machine according to claim 1, wherein the other portion (19a) is made of a synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5261317A JP2613007B2 (en) | 1993-10-19 | 1993-10-19 | Sewing machine bite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5261317A JP2613007B2 (en) | 1993-10-19 | 1993-10-19 | Sewing machine bite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07112088A JPH07112088A (en) | 1995-05-02 |
| JP2613007B2 true JP2613007B2 (en) | 1997-05-21 |
Family
ID=17360128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5261317A Expired - Lifetime JP2613007B2 (en) | 1993-10-19 | 1993-10-19 | Sewing machine bite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2613007B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5189142A (en) * | 1990-08-24 | 1993-02-23 | Henkel Corporation | Wet strength resin composition and method of making same |
| US5239047A (en) * | 1990-08-24 | 1993-08-24 | Henkel Corporation | Wet strength resin composition and method of making same |
| US5364927A (en) * | 1990-08-24 | 1994-11-15 | Henkel Corporation | Wet strength resin composition and method of making same |
| JP4450198B2 (en) * | 2004-09-28 | 2010-04-14 | ブラザー工業株式会社 | Horizontal rotary hook |
| CN108642746B (en) * | 2018-05-24 | 2021-01-12 | 东阳市太极精密制造有限公司 | Sewing embroidery machine rotating shuttle containing wear-resistant ceramic parts and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5886190A (en) * | 1981-11-18 | 1983-05-23 | 株式会社佐文工業所 | Production of inner hook of full rotary hook of sewing machine |
| JPS6064777U (en) * | 1983-10-13 | 1985-05-08 | ブラザー工業株式会社 | Inner pot of full-rotation pot |
| JP3013978U (en) * | 1995-01-25 | 1995-07-25 | スーパーバッグ株式会社 | Paper bag |
-
1993
- 1993-10-19 JP JP5261317A patent/JP2613007B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07112088A (en) | 1995-05-02 |
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