JP2739035B2 - Sewing machine refueling equipment - Google Patents
Sewing machine refueling equipmentInfo
- Publication number
- JP2739035B2 JP2739035B2 JP6095353A JP9535394A JP2739035B2 JP 2739035 B2 JP2739035 B2 JP 2739035B2 JP 6095353 A JP6095353 A JP 6095353A JP 9535394 A JP9535394 A JP 9535394A JP 2739035 B2 JP2739035 B2 JP 2739035B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- lubricating oil
- sewing machine
- pump
- lubricating
- 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
【０００１】[0001]
【産業上の利用分野】この発明はミシンの給油装置に関
し、詳しくはミシンの摺動部に対して常に適正量の潤滑
油を供給可能にするミシンの給油装置に関するのもであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating device for a sewing machine, and more particularly, to a lubricating device for a sewing machine capable of always supplying an appropriate amount of lubricating oil to a sliding portion of the sewing machine.
【０００２】[0002]
【従来の技術】図４は従来のミシンの給油装置の構成を
示す図である。図においてＰはポンプであり、このポン
プＰはミシンＭの下軸１と連結されていて下軸１の回転
時、すなわちミシンの駆動とともに動作をなして不図示
の油貯留手段（オイルパン）の潤滑油を吸い上げ、その
潤滑油を送り口Ｐａから送り出すことができるようにな
っている。2. Description of the Related Art FIG. 4 is a diagram showing a configuration of a conventional oil supply device for a sewing machine. In the figure, P is a pump, which is connected to the lower shaft 1 of the sewing machine M, and operates when the lower shaft 1 rotates, that is, when the sewing machine is driven. The lubricating oil can be sucked up and sent out from the outlet Pa.
【０００３】また、２はポンプＰと配管される油分配手
段であり、この油分配手段２はポンプＰが送り出す潤滑
油を２つの経路に分配することができるようになってい
て、図に示すように２つの流出部２ａ、２ｂを備えてい
る。そして、この給油分配手段２により分配された潤滑
油は油送りパイプＸおよびＹによりミシンＭの上方と下
方とにそれぞれ送られる。[0003] Reference numeral 2 denotes oil distribution means connected to the pump P. The oil distribution means 2 is capable of distributing the lubricating oil sent out by the pump P to two paths. So that two outflow portions 2a and 2b are provided. Then, the lubricating oil distributed by the oil supply distribution means 2 is sent above and below the sewing machine M by oil feed pipes X and Y, respectively.
【０００４】次に油送りパイプＹによりミシンの上方に
送られた潤滑油の作用を説明する。ポンプＰにより油送
りパイプＹ内を通過する潤滑油は、流出孔７ａを備えた
筒部材７に送られ、この筒部材７の流出孔７ａからミシ
ンＭの上方に設けられた油貯留皿８に蓄えられる。な
お、この油貯留皿８は上端部の近傍に形成された貫通穴
に戻りパイプ８ａを備えていて、ポンプＰから過剰に送
られる潤滑油をこの戻りパイプ８ａにより油貯留手段へ
流出することで常に一定量の潤滑油を確保することがで
きるようになっている。Next, the operation of the lubricating oil sent above the sewing machine by the oil feed pipe Y will be described. The lubricating oil passing through the oil feed pipe Y by the pump P is sent to the cylindrical member 7 having the outflow hole 7a, and from the outflow hole 7a of the cylindrical member 7 to the oil storage tray 8 provided above the sewing machine M. It is stored. The oil storage tray 8 is provided with a return pipe 8a in a through hole formed near the upper end, and the lubricating oil excessively sent from the pump P flows out to the oil storage means by the return pipe 8a. A constant amount of lubricating oil can always be secured.
【０００５】そして油貯留皿８はミシンの天秤５に設け
られた周知の油飛散手段６とパイプ９により配管されて
いて、この油飛散手段６は油貯留皿８の潤滑油をミシン
の頭部に設置される天秤５、針棒１０等の摺動部分に向
けて飛散させることでこれら各摺動部に潤滑油を供給す
ることができるようになっている。また、１１は油還流
パイプであり、この油還流パイプは油飛散手段６による
各摺動部への給油時にミシン頭部内に残留した潤滑油を
フェルト１１ａで吸収しその潤滑油をミシンの油貯留手
段へ戻すことができるようになっている。The oil storage tray 8 is connected to a well-known oil scattering means 6 provided on a balance 5 of the sewing machine and a pipe 9. The oil scattering means 6 supplies the oil of the oil storage tray 8 to the head of the sewing machine. The lubricating oil can be supplied to these sliding parts by scattering them toward sliding parts such as the balance 5 and the needle bar 10 installed in the apparatus. Reference numeral 11 denotes an oil recirculation pipe. The oil recirculation pipe absorbs the lubricating oil remaining in the head of the sewing machine at the time of oil supply to each sliding portion by the oil scattering means 6 and absorbs the lubricating oil with the oil of the sewing machine. It can be returned to the storage means.
【０００６】一方、ポンプＰにより前記油送りパイプＸ
内を通過する潤滑油は、潤滑油の通過量を調節する油量
調節手段３に送られ、この油量調節手段３を介してミシ
ンの摺動部としての回転釜４へ送られる。この油量調節
手段３は、図５に示すように、回転釜４に接する油浸透
部材３ａと、この油浸透部材３ａの油通過量を変化させ
る調節機構３ｂとからなっている。油浸透部材は、回転
釜４の回転軸４ａの下面に接触する接触フェルト３ｃ
と、ゴム筒に格納され油送りパイプＸと接触フェルト３
ｃとの間に設けられる油芯３ｄとにより構成されてい
る。また調節機構は、油芯３ｄ方向に進退可能な調節ね
じ３ｅと、調節ねじ３ｅと油芯３ｄとの間に設けられる
ボール部材３ｆと、により構成されている。On the other hand, the oil feed pipe X
The lubricating oil passing through the inside is sent to an oil amount adjusting means 3 for adjusting the amount of the passing of the lubricating oil, and is sent to the rotary hook 4 as a sliding portion of the sewing machine via the oil amount adjusting means 3. As shown in FIG. 5, the oil amount adjusting means 3 includes an oil permeable member 3a in contact with the rotary hook 4, and an adjusting mechanism 3b for changing the amount of oil passing through the oil permeable member 3a. The oil penetrating member is a contact felt 3c that contacts the lower surface of the rotary shaft 4a of the rotary hook 4.
And the oil feed pipe X stored in the rubber cylinder and the contact felt 3
c and an oil wick 3d provided between the two. The adjusting mechanism includes an adjusting screw 3e that can move forward and backward in the direction of the oil core 3d, and a ball member 3f provided between the adjusting screw 3e and the oil core 3d.
【０００７】この油調節手段３は、調節ねじ３ｅを正逆
に回転させることでボール部材３ｆを介して油芯３ｄの
締め付け力を変化させて、この油芯３ｄの油通過抵抗を
変化させることで回転釜４への給油量を調節することが
できるようになっている。The oil adjusting means 3 changes the tightening force of the oil core 3d via the ball member 3f by rotating the adjusting screw 3e in the normal and reverse directions, thereby changing the oil passage resistance of the oil core 3d. The amount of refueling to the rotary hook 4 can be adjusted with.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら上記従来
のミシンの給油装置には、次のような問題がある。すな
わち、ポンプＰは、所定量の潤滑油を常時強制的に油量
調節手段３へ送給するため、この油量調節手段３により
供給量の微量調節を行うことができないという不都合が
生じることになる。例えば、回転釜４への供給量を減量
するよう油量調節手段３を調節しても、ポンプＰは油量
調節手段３の調節前と同量の潤滑油を圧送するので油量
調節手段３は送られてくる潤滑油の流動を適正に抑制す
ることができず過剰な潤滑油を回転釜４へ供給してしま
う。However, the above-described conventional oil supply device for a sewing machine has the following problems. That is, since the pump P always forcibly supplies a predetermined amount of lubricating oil to the oil amount adjusting means 3, there arises an inconvenience that the oil amount adjusting means 3 cannot perform a minute adjustment of the supply amount. Become. For example, even if the oil amount adjusting means 3 is adjusted so as to reduce the supply amount to the rotary hook 4, the pump P pumps the same amount of lubricating oil as before the oil amount adjusting means 3 is adjusted. In this case, the flow of the lubricating oil sent cannot be properly suppressed, and excessive lubricating oil is supplied to the rotary hook 4.
【０００９】また、ミシンは被縫製物に応じて縫製速度
を調節する必要があるが、ミシンの縫製速度を調節する
と下軸１の回転速度が変化し、これに応じてポンプＰの
油送り量もまた変化するので、油量調節手段３を介して
回転釜４に供給される油量が適正量にならないという不
都合がある。例えば、下軸１の回転速度を毎分１６０回
転程度の低速運転から毎分３０００回転程の高速運転へ
と変化させると、ポンプＰにより送り出される油量は増
加し、必要以上の潤滑油が油量調節手段３を通過して回
転釜４に送られてしまう。以上説明したように回転釜４
に過剰な潤滑油が供給されると、回転釜４内に格納され
る縫い糸（下糸）が潤滑油で汚れてしまい縫製品質を低
下させてしまうという問題を生じた。The sewing speed of the sewing machine needs to be adjusted according to the material to be sewn. When the sewing speed of the sewing machine is adjusted, the rotation speed of the lower shaft 1 changes. Therefore, there is a disadvantage that the amount of oil supplied to the rotary hook 4 via the oil amount adjusting means 3 does not become an appropriate amount. For example, when the rotation speed of the lower shaft 1 is changed from a low-speed operation of about 160 rotations per minute to a high-speed operation of about 3000 rotations per minute, the amount of oil sent out by the pump P increases, and more lubricating oil than necessary It passes through the amount adjusting means 3 and is sent to the rotary hook 4. As described above, the rotary hook 4
If excessive lubricating oil is supplied to the sewing machine, there arises a problem that the sewing thread (bobbin thread) stored in the rotary hook 4 is contaminated with the lubricating oil, thereby deteriorating the quality of sewing products.
【００１０】一方、上述の駆動部への過剰な潤滑油の供
給の問題とは別に、従来のミシンの給油装置には次のよ
うな問題もある。ミシンの点検作業、修理作業を行うた
め、ミシンの油貯留手段とポンプＰとを分離した際、ポ
ンプＰ内に空気が入り込むことがあり、ミシン駆動時に
おいてポンプＰはこの入り込んだ空気を回転釜へ送って
しまうことがある。On the other hand, apart from the problem of the excessive supply of the lubricating oil to the drive unit, the conventional oil supply device of the sewing machine also has the following problem. In order to perform inspection and repair work on the sewing machine, when the oil storing means of the sewing machine and the pump P are separated, air may enter the pump P. When the sewing machine is driven, the pump P transfers the entered air to the rotary hook. May be sent to
【００１１】また、ポンプＰは高速回転時においてキャ
ビテーションを起こして潤滑油内に気泡を発生させてし
まうことがあり、この場合にもポンプＰは気泡（空気）
を回転釜へ送ってしまい、回転釜への油供給量が不足
し、回転釜が著しく摩耗するとともに摩耗した部分が腐
食する等の不都合を生じる。Also, the pump P may cause cavitation during high-speed rotation to generate air bubbles in the lubricating oil. In this case, too, the pump P may generate air bubbles (air).
Is sent to the rotary hook, the oil supply to the rotary hook is insufficient, and the rotary hook is significantly worn and the worn portions are corroded.
【００１２】さらにまた、ミシンを長時間停止させるて
おくと、回転釜に送られた潤滑油が徐々に抜けて出し
（逆流し）、ミシンの再駆動時において回転釜が一時的
に潤滑油不足の状態になるという不都合も生じ、ミシン
の耐久性を低下させる原因ともなっていた。Further, if the sewing machine is stopped for a long time, the lubricating oil sent to the rotary hook is gradually discharged (backflow), and the rotary hook temporarily runs out of lubricating oil when the sewing machine is driven again. And the durability of the sewing machine is reduced.
【００１３】[0013]
【課題を解決するための手段】上記目的を達成するため
に、請求項１記載の発明に係るミシンの給油装置では、
ミシン本体下方に配置した潤滑油貯留手段と、前記潤滑
油貯留手段から潤滑油を送り出すためのポンプと、この
ポンプとミシン摺動部との間に設けられた潤滑油供給路
と、この潤滑油供給路上に配置されるとともに、回転釜
への潤滑油の供給量を調節可能な油量調節手段と、を有
するミシンの給油装置において、前記油量調節手段より
上方に設けられた油貯留皿と、前記潤滑油供給路から分
岐されるとともに、その先端が前記油貯留皿に連通可能
な分配パイプと、を備え、前記ポンプから供給された潤
滑油量が前記油量調節手段に調節される給油量より過剰
な場合その過剰潤滑油を前記油貯留皿に供給可能、且つ
前記油貯留皿の潤滑油を前記回転釜またはそれ以外のミ
シン摺動部に供給するようにした。また、請求項２の発
明に係るミシンの給油装置では、ミシン本体下方に配置
した潤滑油貯留手段と、前記潤滑油貯留手段から潤滑油
を送り出すためのポンプと、ポンプとミシン摺動部との
間に設けられた潤滑油供給路と、前記摺動部への潤滑油
の供給量を調整するために前記潤滑油供給路上に配置し
た油量調節手段と、を有するミシンの給油装置におい
て、オイルリザ−バ−手段は、前記油量調整手段よりも
上方に設けられた油貯留皿と、この油貯留皿と前記潤滑
油供給路の上部とを連結する分配パイプと、前記油貯留
皿に過剰に送られる潤滑油を前記潤滑油貯留部材へ送る
ための戻りパイプと、を備え、前記オイルリザ−バ−手
段は、ポンプと油量調節手段との間の潤滑油供給路上か
ら分岐しポンプから供給された潤滑油の過剰供給分を前
記潤滑油貯留手段に還流可能にした。According to a first aspect of the present invention, there is provided a sewing machine refueling apparatus according to the first aspect of the present invention.
A lubricating oil storing means disposed below the sewing machine main body, a pump for sending out lubricating oil from the lubricating oil storing means, a lubricating oil supply passage provided between the pump and a sliding portion of the sewing machine; An oil amount adjusting means arranged on the supply path and capable of adjusting the amount of lubricating oil supplied to the rotary hook; and an oil storage tray provided above the oil amount adjusting means in an oil supply device for a sewing machine. A distribution pipe branched from the lubricating oil supply path and having a distal end communicating with the oil storage dish, wherein the amount of lubricating oil supplied from the pump is adjusted by the oil amount adjusting means. When the amount is excessive, the excess lubricating oil can be supplied to the oil storage dish, and the lubricating oil of the oil storage dish is supplied to the rotary hook or other sliding parts of the sewing machine. Further, in the oil supply device for a sewing machine according to the second aspect of the present invention, the lubricating oil storing means disposed below the sewing machine main body, a pump for sending out the lubricating oil from the lubricating oil storing means, An oil reservoir for a sewing machine, comprising: a lubricating oil supply passage provided between the lubricating oil supply passage and oil amount adjusting means disposed on the lubricating oil supply passage for adjusting an amount of lubricating oil supplied to the sliding portion. The bar means includes an oil storage dish provided above the oil amount adjusting means, a distribution pipe connecting the oil storage dish to an upper portion of the lubricating oil supply path, and A return pipe for sending the supplied lubricating oil to the lubricating oil storage member, wherein the oil reservoir means is branched from a lubricating oil supply passage between the pump and the oil amount adjusting means and supplied from the pump. Before the excessive supply of lubricating oil Allowed to reflux in the lubricating oil storage means.
【００１４】[0014]
【作用】このような請求項１におけるミシンの給油装置
によれば、ポンプから供給された潤滑油量が油量調節手
段に調節される給油量より過剰の場合、その過剰潤滑油
を前記油貯留皿に供給可能なため、油量調節手段の調節
に応じた適正量の潤滑油のみをミシン摺動部に供給する
ことができる。また、ポンプが空気を送り出してしまっ
た場合、その空気を、ミシン上方に配置され且つポンプ
と油量調節手段との潤滑油供給路から分岐された分配パ
イプを介して、外部へ放出することができる。このた
め、油量調節手段への空気の供給を解消し、常にミシン
摺動部への適正な給油を可能にする。また、前記分配パ
イプに蓄えられた油を、ミシン停止後ミシン摺動部に徐
々に送ることで、ミシンの再駆動時におけるミシン摺動
部の潤滑油不足を解消する。また、請求項２におけるミ
シンの給油装置によれば、上記請求項１、２の作用に加
えて、油貯留皿に蓄えられた過剰潤滑油を、戻りパイプ
を介してミシン本体下方に配置した潤滑油貯留手段に還
流することができる。According to the sewing machine lubricating apparatus of the first aspect, when the amount of lubricating oil supplied from the pump is larger than the amount of lubricating oil adjusted by the oil amount adjusting means, the excess lubricating oil is stored in the oil reservoir. Since the lubricating oil can be supplied to the plate, only an appropriate amount of lubricating oil according to the adjustment of the oil amount adjusting means can be supplied to the sliding portion of the sewing machine. Further, when the pump has sent out air, the air may be discharged outside through a distribution pipe disposed above the sewing machine and branched from a lubricating oil supply passage between the pump and the oil amount adjusting means. it can. For this reason, the supply of air to the oil amount adjusting means is eliminated, and appropriate lubrication to the sliding portion of the sewing machine is always enabled. In addition, by gradually sending the oil stored in the distribution pipe to the sewing machine sliding portion after the sewing machine stops, the shortage of lubricating oil in the sewing machine sliding portion when the sewing machine is driven again is eliminated. According to the lubricating device for a sewing machine of the second aspect, in addition to the functions of the first and second aspects, the lubricating oil disposed in the lower portion of the sewing machine via the return pipe is provided with the excess lubricating oil stored in the oil storage tray. It can be returned to the oil storage means.
【００１５】[0015]
【実施例】図面にもとづいてこの発明の実施例を説明す
る。なお従来例と同一箇所には同一符号を付して重複説
明は省略する。図１ないし図３は、この発明に係るミシ
ンの給油装置の一実施例を示す図である。図１において
Ｃは、ポンプＰから供給された潤滑油の過剰供給分をミ
シンの油貯留手段へ還流するためのオイルリザーバー装
置であり、このオイルリザーバー装置Ｃは、油量調節手
段３よりも高い位置に設置される油貯留皿８と、調節手
段３との油流通経路としての油送りパイプＸと、油貯留
皿８の下端に形成された油出入部８ａと油送りパイプＸ
との間に配管される分配パイプＡと、油貯留皿８に設け
られる戻りパイプ８ａと、から構成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. The same parts as in the conventional example are denoted by the same reference numerals, and redundant description will be omitted. FIGS. 1 to 3 are views showing an embodiment of a sewing machine oil supply device according to the present invention. In FIG. 1, C is an oil reservoir device for recirculating the excess supply of lubricating oil supplied from the pump P to the oil storing means of the sewing machine. The oil reservoir device C is higher than the oil amount adjusting means 3. An oil storage tray 8 installed at a position, an oil feed pipe X as an oil circulation path with the adjusting means 3, an oil inlet / outlet 8a formed at a lower end of the oil storage tray 8, and an oil feed pipe X.
And a return pipe 8a provided in the oil storage tray 8.
【００１６】また、油送りパイプＸに配管される分配パ
イプＡは、同図（ｂ）に示すように油送りパイプＸの上
部と配管されていて、この分配パイプＡは上方に向けて
立設されいる。そして、この分配パイプＡの潤滑油排出
孔としての上端口は図に示すよに油貯留皿８まで延長し
ている、すなわち油量調節手段３よりも高い位置に設け
られている。The distribution pipe A connected to the oil feed pipe X is connected to the upper part of the oil feed pipe X as shown in FIG. 1B, and the distribution pipe A is provided to stand upward. Have been. The upper end of the distribution pipe A as a lubricating oil discharge hole extends to the oil storage tray 8 as shown in the figure, that is, is provided at a position higher than the oil amount adjusting means 3.
【００１７】次にこのオイルリザーバー装置Ｃが設けら
れたミシンの給油装置の作用を説明する。油量調節手段
３の調節ねじ３ｅを、回転釜４（駆動部）が必要とする
給油量に調節してミシンを駆動させた際、図１（ｂ）に
示すように油量調節手段３により調節された給油量２１
よりもポンプＰの潤滑油の送り出し量２２が多いと、そ
の過剰分の潤滑油２３は油送りパイプＸに配管される分
配パイプＡに入り込んで上昇し油貯留皿８に蓄えられ
る。すなわち、ポンプＰが強制的に過剰な潤滑油を送り
出したとしても油量調節手段３へはポンプＰの送り出す
圧力が直接かかることはなく、この油量調節手段３は調
節された適正量の油のみを摺動部としての回転釜４へ給
油することが可能である。Next, the operation of the oil supply device of the sewing machine provided with the oil reservoir device C will be described. When the sewing machine is driven by adjusting the adjusting screw 3e of the oil amount adjusting means 3 to the oil amount required by the rotary hook 4 (drive unit), as shown in FIG. Adjusted refueling amount 21
When the amount of lubricating oil sent from the pump P is larger than that of the pump P, the excess lubricating oil enters the distribution pipe A connected to the oil feed pipe X, rises and is stored in the oil storage tray 8. That is, even if the pump P forcibly sends out excess lubricating oil, the pressure of the pump P to be sent out is not directly applied to the oil amount adjusting means 3, and the oil amount adjusting means 3 adjusts the adjusted appropriate amount of oil. Only oil can be supplied to the rotary hook 4 as a sliding portion.
【００１８】また、ミシンの縫製速度（下軸の回転速
度）を調整し、ポンプＰが送り出す潤滑油量２２が変化
した場合であっても、その潤滑油量２２の変化に応じて
分配パイプＡに入り込む潤滑油量２３が変化するだけ
で、油量調節手段３が回転釜４へ給油する油量２１が変
化してしまうことはなく、油量調節手段３は回転釜４へ
調節された適正量の潤滑油を供給することが可能であ
る。なお、このオイルリザーバー装置Ｃの潤滑油排出孔
（分配パイプＡの上端孔）は、油量調節手段３よりも高
い位置に設けられているので油量調節手段３が必要とし
ない過剰な潤滑油のみを油送りパイプＸから流出させ、
油量調節手段３が必要とする潤滑油量を油送りパイプＸ
から流出してしまうことはない。また、油貯留皿８に蓄
えられた潤滑油は上述のようにミシンの天秤５、針棒１
０等の各駆動部に供給されることはもちろん、ミシンの
停止後において油送りパイプＸを介して回転釜４へ送ら
れ、ミシンの再駆動時における回転釜４の潤滑油不足を
解消することができる。Further, even if the sewing speed (rotational speed of the lower shaft) of the sewing machine is adjusted and the amount of lubricating oil 22 sent out by the pump P changes, the distribution pipe A is adjusted in accordance with the change in the amount of lubricating oil 22. Only by changing the amount of lubricating oil 23 that enters, the amount of oil 21 supplied by the oil amount adjusting means 3 to the rotary hook 4 does not change. It is possible to supply a quantity of lubricating oil. Note that the lubricating oil discharge hole (upper end hole of the distribution pipe A) of the oil reservoir device C is provided at a position higher than the oil amount adjusting means 3, so that the excessive amount of lubricating oil that the oil amount adjusting means 3 does not need is provided. Only from the oil feed pipe X,
The amount of lubricating oil required by the oil amount adjusting means 3 is determined by the oil feed pipe X
It does not leak from The lubricating oil stored in the oil storage tray 8 is supplied to the sewing machine balance 5 and the needle bar 1 as described above.
0, of course, is supplied to the rotary hook 4 via the oil feed pipe X after the sewing machine is stopped after the sewing machine is stopped, thereby eliminating the shortage of lubricating oil in the rotary hook 4 when the sewing machine is driven again. Can be.
【００１９】一方、オイルリザーバー装置Ｃは、ポンプ
Ｐに空気が入り込んだ場合、あるいはポンプＰがキャビ
テーションを起こして油内に気泡が発生してしまった場
合これら空気を油送りパイプＸから放出し、回転釜４へ
の空気の供給を阻止することができる。すなわち、図２
に示すように油送りパイプＸ内の空気ＫはポンプＰによ
り油量調節手段３方向（矢符方向）に向けて移動する
が、この空気Ｋが分配パイプＡまで至ると、油よりも軽
い空気Ｋは上方に向けて設けられる分配パイプＡ内に入
り込み、この分配パイプＡを上昇して油貯留皿８を経て
外部へと放出される。これにより、この分配パイプＡよ
り先方の油調節手段３および回転釜４に空気Ｋが送られ
ることはなく、回転釜４には常に適正量の潤滑油が供給
される。On the other hand, the oil reservoir device C discharges the air from the oil feed pipe X when air enters the pump P or when the pump P causes cavitation and bubbles are generated in the oil. The supply of air to the rotary hook 4 can be prevented. That is, FIG.
As shown in the figure, the air K in the oil feed pipe X moves toward the oil amount adjusting means 3 (arrow direction) by the pump P. When the air K reaches the distribution pipe A, the air lighter than the oil K enters the distribution pipe A provided upward, rises up the distribution pipe A, and is discharged outside through the oil storage dish 8. As a result, the air K is not sent to the oil adjusting means 3 and the rotary hook 4 ahead of the distribution pipe A, and an appropriate amount of lubricating oil is always supplied to the rotary hook 4.
【００２０】なお、この実施例は１台の回転釜４を備え
たミシンを例に示したが、２台の回転釜を備えたミシン
（二本針ミシン）においても図３に示すよに各回転釜に
配管される油送りパイプに対して分別パイプＡを設けれ
ば上述と同様の効果を得ることができる。In this embodiment, a sewing machine provided with one rotary hook 4 is shown as an example, but a sewing machine provided with two rotary hooks (two-needle sewing machine) as shown in FIG. If the separation pipe A is provided for the oil feed pipe connected to the rotary hook, the same effect as described above can be obtained.
【００２１】また、この実施例ではオイルリザーバー装
置Ｃは分配パイプＡを油貯留皿８と配管して構成した例
を示したが、分配パイプＡを太く形成したり、あるいは
長く形成し、その分配パイプＡ内にミシン再駆動時のた
めに必要な潤滑油が十分確保できるように構成すれば分
配パイプＡと油貯留皿８とを配管しなくても良い。Further, in this embodiment, the oil reservoir device C has been described as an example in which the distribution pipe A is constructed by piping the oil storage dish 8, but the distribution pipe A is formed to be thick or long, and the distribution pipe A is formed. If the lubricating oil required for the sewing machine re-driving can be sufficiently secured in the pipe A, the distribution pipe A and the oil storage tray 8 need not be provided.
【００２２】さらに、分配パイプＡと油貯留皿８の間に
流量調節弁を設けることにより、分配パイプＡの流量を
変化させ、最適の条件を得ることも容易に考えられる。Further, by providing a flow control valve between the distribution pipe A and the oil storage tray 8, it is possible to easily change the flow rate of the distribution pipe A to obtain the optimum condition.
【００２３】ところで、この実施例のミシンの給油装置
において、ミシンの天秤５、針棒１０等、ミシンの上方
への油の供給部は次のように構成されている。図１に示
すＢ１は針棒１０と油飛散手段６との間に設けられる針
棒給油パイプであり、この針棒給油パイプＢ１は油飛散
手段６から送り出される油の一部を通過させて針棒１０
へ供給することができるようになっている。そして、Ｂ
２は針棒１０と油還流パイプ１１との間に設けられる針
棒油還流パイプであり、この針棒油還流パイプＢ２は針
棒１０に接触し針棒１０に供給された油を吸収するフェ
ルトを備えていて、針棒１０に過剰に供給された油を油
還流パイプ１１へ送り、針棒１０を伝ってミシン機枠の
外部に漏れる油を解消することができるようになってい
る。従って、ミシン頭部への給油と、給油後の還流が正
確になるので、縫製作業の作業性と保守性が大幅に向上
する。By the way, in the sewing machine oil supply device of this embodiment, the supply section of the oil above the sewing machine, such as the sewing machine balance 5 and the needle bar 10, is configured as follows. B1 shown in FIG. 1 is a needle bar oil supply pipe provided between the needle bar 10 and the oil scattering means 6. The needle bar oil supply pipe B1 passes a part of the oil sent out from the oil scattering means 6 to the needle. Stick 10
It can be supplied to. And B
Reference numeral 2 denotes a needle bar oil return pipe provided between the needle bar 10 and the oil return pipe 11. The needle bar oil return pipe B2 is a felt that contacts the needle bar 10 and absorbs oil supplied to the needle bar 10. The oil supplied excessively to the needle bar 10 is sent to the oil return pipe 11 so that oil leaking to the outside of the sewing machine frame along the needle bar 10 can be eliminated. Accordingly, the lubrication of the sewing machine head and the recirculation after the lubrication become accurate, thereby greatly improving the workability and maintainability of the sewing operation.
【００２４】[0024]
【発明の効果】以上説明したように、請求項１における
ミシンの給油装置によれば、ポンプから供給された潤滑
油量が油量調節手段に調節される給油量より過剰の場
合、その過剰潤滑油を前記油貯留皿に供給可能なため、
油量調節手段の調節に応じた適正量の潤滑油のみをミシ
ン摺動部に供給することができる。As described above, according to the lubricating device for a sewing machine according to the first aspect, when the amount of lubricating oil supplied from the pump is excessive than the amount of lubricating oil adjusted by the oil amount adjusting means, the excessive lubrication is performed. Because oil can be supplied to the oil storage dish,
Only an appropriate amount of lubricating oil according to the adjustment of the oil amount adjusting means can be supplied to the sliding portion of the sewing machine.
【００２５】また、ポンプが空気を送り出してしまった
場合、その空気を、ミシン上方に配置され且つポンプと
油量調節手段との潤滑油供給路から分岐された分配パイ
プを介して、外部へ放出することができる。このため、
油量調節手段への空気の供給を解消し、常にミシン摺動
部への適正な給油を可能にする。また、前記分配パイプ
に蓄えられた油を、ミシン停止後ミシン摺動部に徐々に
送ることで、ミシンの再駆動時におけるミシン摺動部の
潤滑油不足を解消する。When the pump has delivered air, the air is discharged to the outside via a distribution pipe disposed above the sewing machine and branched from a lubricating oil supply passage between the pump and the oil amount adjusting means. can do. For this reason,
Eliminates the supply of air to the oil amount adjusting means, and always enables appropriate oil supply to the sliding portion of the sewing machine. In addition, by gradually sending the oil stored in the distribution pipe to the sewing machine sliding portion after the sewing machine stops, the shortage of lubricating oil in the sewing machine sliding portion when the sewing machine is driven again is eliminated.
【００２６】また、請求項２におけるミシンの給油装置
によれば、上記請求項１の効果に加えて、油貯留皿に蓄
えられた過剰潤滑油を、戻りパイプを介してミシン本体
下方に配置した潤滑油貯留手段に還流することができ
る。According to the second aspect of the present invention, in addition to the effect of the first aspect, the excess lubricating oil stored in the oil storage tray is disposed below the sewing machine main body via the return pipe. It can be returned to the lubricating oil storage means.
【図１】この発明に係るミシンの給油装置の一実施例を
示す斜視図である。FIG. 1 is a perspective view showing an embodiment of an oil supply device for a sewing machine according to the present invention.
【図２】図１に示したミシンの給油装置においてポンプ
が空気を油送りパイプへ送り出した際の作用を示す説明
図である。FIG. 2 is an explanatory view showing an operation when a pump sends out air to an oil feed pipe in the oil supply device of the sewing machine shown in FIG. 1;
【図３】駆動部としての回転釜を２台備えたミシンにお
ける分配パイプの構成状態を示す斜視図である。FIG. 3 is a perspective view showing a configuration state of a distribution pipe in a sewing machine provided with two rotary hooks as driving units.
【図４】従来のミシンの供給装置の構成を示す斜視図で
ある。FIG. 4 is a perspective view illustrating a configuration of a conventional sewing machine supply device.
【図５】ミシンの供給装置に設けられる油量調節手段の
構成を示す断面図である。FIG. 5 is a cross-sectional view showing a configuration of an oil amount adjusting means provided in the sewing machine supply device.
Ａ 分配パイプ Ｃ オイルリザーバー装置 Ｐ ポンプ Ｘ 油流通経路（油送りパイプ） ３ 油量調節手段 ４ 摺動部分（回転釜） ８ 油貯留皿 Reference Signs List A distribution pipe C oil reservoir device P pump X oil circulation path (oil feed pipe) 3 oil amount adjusting means 4 sliding part (rotary pot) 8 oil storage tray
フロントページの続き (72)発明者 月岡 高志 東京都調布市国領町８丁目２番地の１ ジューキ株式会社内 (72)発明者 安斎 武久 東京都調布市国領町８丁目２番地の１ ジューキ株式会社内 審査官 松縄 正登 (56)参考文献 実開 平４−10879（ＪＰ，Ｕ) 実開 平４−10878（ＪＰ，Ｕ) 実公 昭62−4311（ＪＰ，Ｙ２)Continuation of the front page (72) Inventor Takashi Tsukioka 8-1, 1-2 Kokuryo-cho, Chofu-shi, Tokyo Inside Juki Corporation (72) Inventor Takehisa Ansai 8-2-1, Kokuryo-cho, Chofu-shi, Tokyo Inside Juki Corporation Examiner Masato Matsunawa (56) Reference Japanese Utility Model 4-10879 (JP, U) Japanese Utility Model 4-1078 (JP, U) Japanese Utility Model 62-4431 (JP, Y2)
Claims (2)
と、 前記潤滑油貯留手段から潤滑油を送り出すためのポンプ
と、 このポンプとミシン摺動部との間に設けられた潤滑油供
給路と、この潤滑油供給路上に配置されるとともに、回転釜への
潤滑油の供給量を調節 可能な油量調節手段と、を有する
ミシンの給油装置において、 前記油量調節手段より上方に設けられた油貯留皿と、 前記潤滑油供給路から分岐されるとともに、その先端が
前記油貯留皿に連通可能な分配パイプと、を備え、 前記ポンプから供給された潤滑油量が前記油量調節手段
に調節される給油量より過剰な場合その過剰潤滑油を前
記油貯留皿に供給可能 、且つ前記油貯留皿の潤滑油を前
記回転釜またはそれ以外のミシン摺動部に供給すること
を特徴とするミシンの給油装置。 1. A lubricating oil storing means disposed below a sewing machine main body, a pump for sending out lubricating oil from the lubricating oil storing means, and a lubricating oil supply passage provided between the pump and a sliding portion of the sewing machine. And placed on this lubricating oil supply path,
Oil amount adjusting means capable of adjusting the supply amount of the lubricating oil.
In a lubricating device for a sewing machine, an oil storage dish provided above the oil amount adjusting means and a branch from the lubricating oil supply path, the tip of which is branched.
A distribution pipe communicable with the oil storage tray, wherein the amount of lubricating oil supplied from the pump is adjusted by the oil amount adjusting means.
If the lubrication amount is excessive,
Oil can be supplied to the oil storage dish , and the oil in the oil storage dish is
Feeding to the rotary hook or other sliding parts of the sewing machine
A refueling device for a sewing machine characterized by the following.
と、 前記潤滑油貯留手段から潤滑油を送り出すためのポンプ
と、 このポンプとミシン摺動部との間に設けられた潤滑油供
給路と、 前記摺動部への潤滑油の供給量を調整するために前記潤
滑油供給路上に配置した油量調節手段と、を有するミシ
ンの給油装置において、 オイルリザ−バ−手段は、 前記油量調整手段よりも上方に設けられた油貯留皿と、 この油貯留皿と前記潤滑油供給路の上部とを連結する分
配パイプと、 前記油貯留皿に過剰に送られる潤滑油を前記潤滑油貯留
部材へ送るための戻りパイプと、を備え、 前記オイルリザ−バ−手段は、ポンプと油量調節手段と
の間の潤滑油供給路上 から分岐しポンプから供給された
潤滑油の過剰供給分を前記潤滑油貯留手段に還流可能で
あることを特徴とするミシンの給油装置。 2. A lubricating oil storing means disposed below a sewing machine main body.
And a pump for sending out lubricating oil from the lubricating oil storing means.
And a lubricating oil supply provided between the pump and the sliding part of the sewing machine.
Supply path and the lubricating oil for adjusting the amount of lubricating oil supplied to the sliding portion.
Oil adjusting means disposed on the oil supply passage.
In the oil supply device, the oil reservoir means includes an oil storage dish provided above the oil amount adjusting means, and an oil reservoir connecting the oil storage dish and an upper portion of the lubricating oil supply path.
Distribution pipe and the lubricating oil that is excessively sent to the oil storage pan
A return pipe for feeding to the member, wherein the oil reservoir means includes a pump and oil amount adjusting means.
Supplied from the branched pump from the lubricating oil supply path between the
The excess supply of lubricating oil can be returned to the lubricating oil storage means.
A refueling device for a sewing machine.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6095353A JP2739035B2 (en) | 1994-05-10 | 1994-05-10 | Sewing machine refueling equipment |
| TW084104320A TW333571B (en) | 1994-05-10 | 1995-05-01 | An oil feeding apparatus for a sewing machine |
| CN95106513A CN1041953C (en) | 1994-05-10 | 1995-05-10 | Oil supplying for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6095353A JP2739035B2 (en) | 1994-05-10 | 1994-05-10 | Sewing machine refueling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07299276A JPH07299276A (en) | 1995-11-14 |
| JP2739035B2 true JP2739035B2 (en) | 1998-04-08 |
Family
ID=14135303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6095353A Expired - Fee Related JP2739035B2 (en) | 1994-05-10 | 1994-05-10 | Sewing machine refueling equipment |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2739035B2 (en) |
| CN (1) | CN1041953C (en) |
| TW (1) | TW333571B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625055A (en) * | 2017-03-15 | 2018-10-09 | Juki株式会社 | Sewing machine |
| CN109778448A (en) * | 2019-03-05 | 2019-05-21 | 拓卡奔马机电科技有限公司 | Sewing machine and lubricating device for sewing machine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4064644B2 (en) * | 2001-05-25 | 2008-03-19 | ペガサスミシン製造株式会社 | sewing machine |
| KR100467106B1 (en) * | 2001-12-24 | 2005-01-24 | (주) 인브로 | Lubrication apparatus for a sewing machine |
| JP4298368B2 (en) * | 2003-05-02 | 2009-07-15 | Ｊｕｋｉ株式会社 | Sewing machine lubrication fluid supply device |
| CN103267217A (en) * | 2013-05-15 | 2013-08-28 | 苏州市正步机器制造有限公司 | Engine base with self-lubricating function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS624311U (en) * | 1985-06-24 | 1987-01-12 | ||
| JP2536954Y2 (en) * | 1990-05-17 | 1997-05-28 | ブラザー工業株式会社 | Sewing machine refueling equipment |
| JPH0410878U (en) * | 1990-05-17 | 1992-01-29 | ||
| CN2148083Y (en) * | 1992-08-22 | 1993-12-01 | 中国标准缝纫机公司陕西缝纫机厂 | Oil suction and supply device for sewing machine |
| CN2148084Y (en) * | 1992-11-09 | 1993-12-01 | 中国标准缝纫机公司陕西缝纫机厂 | Oil Suction and supply device for sewing machine |
| CN2194920Y (en) * | 1993-05-05 | 1995-04-19 | 中国标准缝纫机公司 | Oil Suction Supply Device for Plain Sewing Machine |
-
1994
- 1994-05-10 JP JP6095353A patent/JP2739035B2/en not_active Expired - Fee Related
-
1995
- 1995-05-01 TW TW084104320A patent/TW333571B/en active
- 1995-05-10 CN CN95106513A patent/CN1041953C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625055A (en) * | 2017-03-15 | 2018-10-09 | Juki株式会社 | Sewing machine |
| CN108625055B (en) * | 2017-03-15 | 2021-10-19 | Juki株式会社 | Sewing machine |
| CN109778448A (en) * | 2019-03-05 | 2019-05-21 | 拓卡奔马机电科技有限公司 | Sewing machine and lubricating device for sewing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041953C (en) | 1999-02-03 |
| JPH07299276A (en) | 1995-11-14 |
| CN1115812A (en) | 1996-01-31 |
| TW333571B (en) | 1998-06-11 |
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