1284715 九、發明說明： 【發明所屬之技術領域】 發明領域 姓本發明涉及沿軸線方向進行往復位移的驅動轴之密封 結構。 L先前标】 發明背景 第9圖是表示以往技術與縫匆機1的針桿 一部分__。第咖是表和往技術與 2有關的結構-部分的分解斜視圖。以往的技術= 麗.峨公射。特開雛咖6號公 = 縫、娜的漏油防止裝置，具備:針桿2 = 進行往復位移；針桿支承構件3,用來 方向 進行導向；針桿宓封禮杜d m + T杯2钕輛線方向 15 :裝-上’針桿一到針：=:: 就上述以往的技術而言，由於 轴線方向被往復位移驅動 干:件4抵接到按 復位移驅動，針桿穷編4/ 因而通過針桿2被往 ’在封構件4和針桿 。根據該㈣摩_不$ 讀摩_作用 構件3脫離的擔心。存在斜桿密封構件4從針桿支承 作爲解決這種課題的方法， 桿密封構件4對針#^ 的技術中將針 菁件3知用黏接劑，來黏接針桿密 20 UM115 構====,，，防止針桿密封構件4從針桿支承 使用，針桿穷封2㈣構件4抵接到針桿2上，所以隨著 知山封構件4因滑動摩擦出 者 除潤滑油的效果 使續桿2到 更換成新的針捍兄T ’ f要將針捍密封構件4 桿支承構件但是由於針桿密封構件4對針 疋k過黏接劑進行黏接的， 剤，難以進行更換作業。 ❿要除去勒接 【發明内容】 發明概要 ίο 15 20 因此’本發明的目的爲提供 密封構件從導向構件 亍、、、。構用來防止 離’亚可以更換密封構件。 本务明的密封結構，包含： 筒狀的導向構件； 往復位移媒動用相轴穿通導向構件’並在抽線方向進行 其特徵爲， 文斟部及導向構件之中的任—者上形成抵接面，用 =基底枝導向構件之中另—者的轴線方向的位移進行 =本發明，驅動㈣過筒狀的導向構件進行導向， 並按軸線方向被往復位移驅動。密封構件具有基底部及密 封#’亚利用基底部安裝到導向構件上。若密封構件安裂 1284715 5 10 15 ^向構件上，則密封部的内周部彈性抵接到驅動抽的外 _上’因此通過驅動軸被往復位移驅動，可以到除驅動 =外周面上所附著的如潤滑油及微粒。在基底部及導向 件之Γ中的任—者上形絲接面，用來對基底部及導向構 抵接麵崎方㈣位料行輕。由於形成這種 用面，因而驅動軸按軸線方向被往復位移驅動，並且利 部==軸和密封部上起作用的滑動摩擦，可以防止基底 、導向部按軸線方向進行位移。⑽，即便是 =位=驅動的驅動軸上的密封構件，也可以確實又防止密 、件從導向構件麟。另外，在將 密封構件時，作業者可以通過使密封構件新的 線方向産生傾斜，讓密封構件從導向構件脫離=件的轴 更換密封構件時，可以容易地進行更換。脫離。據此，在 另外，本發明的特徵爲，在基底 個上形成用來形成抵接面的嵌合凸部，°構件的任- 在基底部及導向構件的另一者上形成用 嵌入的嵌合凹部。 瓜〇凸部 按照本發明，在基底部及導向構件的任 來形成抵接面的欲合凸部，並且在基底部=形成用 —者上形成用來使欲合凸部嵌人的嵌合”目件的另 :過嵌合凸《入到嵌合凹部中，來球實防止基：= 向構件按減方向進行位移。因而，採用嵌 ' — 凹部這種簡單的結構，就可以確實防止密封如/及嵌合 件脫離。 導向構 20 1284715 再者，本發明的特徵爲，驅動軸是一種用來保持縫紉 機縫針的針桿， 密封構件外套到導向構件上進行安裝。 按照本發明，可以涉及到縫紉機的缝針，實現防止導 5 向構件從密封構件脫離的密封結構。 再者，本發明的特徵爲，驅動軸是一種用來保持縫紉 機環縫針的環縫針桿， 密封構件外套到導向構件上進行安裝。 # 按照本發明，可以涉及到用來保持縫紉機環縫針的環 10 縫針桿，實現防止導向構件從密封構件脫離的密封結構。 再者，本發明的特徵爲，嵌合凸部及嵌合凹部分別設 置在圓周方向整周的範圍上。 按照本發明，嵌合凸部及嵌合凹部可以進行定位，以 使密封構件及導向構件的各軸線成爲同軸。據此，可以使 15 密封部恰當抵接到驅動軸上，能夠實現不在圓周方向的範 圍内出現偏差而均勻帶來密封部的刮除效果之結構。另 ® 外，由於嵌合凸部及嵌合凹部分別設置在圓周方向整周的 範圍上，因而在由作業者對導向構件安裝密封構件時，無 需進行圓周方向的定位，因此可以容易地進行安裝。 20 圖式簡早說明 本發明的目的、特點及優點通過下面的詳細說明和附 圖，將變得更爲明確。 第1圖是表示作爲本發明一個實施方式與密封結構的 針桿有關的結構一部分的剖面圖。 1284715 第2圖是放大表示與密封結構的針桿有關的結構一部 分的剖面圖。 第3圖是表示具備密封結構的縫紉機的斜視圖。 第4圖是表示與密封結構的針桿有關的結構的斜視圖。 5 第5圖是表示與密封結構的環縫針桿有關的結構的斜 視圖。 第6圖是從正面一側看到並表示與密封結構的環縫針 桿有關的結構一部分的剖面圖。 # 第7圖是從平面一側看到並表示與密封結構的環縫針 10 桿有關的結構一部分的剖面圖。 第8圖是放大表示與密封結構的環縫針桿有關的結構 一部分的剖面圖。 第9圖是表示以往技術與缝紉機的針桿有關的結構一 部分的剖面圖。 15 第10圖是表示以往技術與缝紉機的針桿有關的結構一 部分的分解斜視圖。 • 【實施方式】 較佳實施例之詳細說明 下面，以附圖爲參考，詳細說明本發明的最佳實施方 20 式。 第1圖是表示作爲本發明一個實施方式與密封結構10 的針桿12有關的結構一部分的剖面圖。第2圖是放大表示第 1圖一部分的剖面圖。第3圖是表示具備密封結構10的缝紉 機11的斜視圖。第4圖是表示與密封結構的針桿12有關的 1284715 結構的斜視圖。夢照第3圖，例如作爲工業用縫紉機的縫紉 機11利用針板15和壓板16來夾住被縫製物（省略圖示），並通 過送料齒（省略圖示）向預定的運送方向B進行傳送，與此同 時使機針17向上下的機針驅動方向Cl、C2進行往復動作， 5可以縫製被縫製物。下面，有時將機針驅動方向的一者ci 稱爲上方C1，將機針驅動方向的另一者C2稱爲下方C2。 縫紉機11具備空心的縫紉機主體23，作爲罩殼發揮作 用，该罩殼在内部收存對機針17等進行驅動的驅動機構等 。缝紉機主體23具有：機架2〇，設置有針板15 ;支柱21， 10從機架20的一個端部豎起；臂部22，從支柱21的上端部沿 著機架20延伸；並且形成爲大致c字狀。 蒼照第4圖，在臂部22的配置於針板上方的部分上， 臂部22的内部空間31由一對側壁部和頂部27及底部28限定 而成，在頂部27及底部28上，分別固定有筒狀的針桿支承 15構件29、30。作爲導向構件的各針桿支承構件29、％將各 轴線沿上下方向配置，並設置爲同轴。穿通這些各針桿支 承構件29、30使之同軸並作爲驅動軸的針桿12，將其轴線 L12按上下方向進行配置’並且至少使作爲軸線方向—個端 部的下端部25，從臂部22朝向機架2()突㈣下方崎㈣ 。在本實施方式中，針桿12按上下方向穿通臂部22，:爲 軸線方向另-端部的上端部顺臂部22突出到上方。‘ 針桿12被各針桿支承構件29、30所支承及導向，並且 沿著其軸線u2自如進行位移，桿u至少被各針桿支 件29、30所導向的轴部純的外周面，形成爲圓筒狀。各 1284715 5BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal structure of a drive shaft that reciprocates in the axial direction. BACKGROUND OF THE INVENTION Fig. 9 is a view showing a part of the needle bar of the prior art and the sewing machine 1. The first coffee is an exploded perspective view of the table and the structure-part related to the technology. The past technology = Li. 峨 public shot. Special open tea 6th male = slit, Na's oil leakage prevention device, with: needle bar 2 = reciprocating displacement; needle bar support member 3 for guiding direction; needle bar 宓 sealing 杜 du dm + T cup 2钕Car line direction 15: Mount-up' Needle bar to pin: =:: In the above-mentioned prior art, since the axial direction is driven by the reciprocating displacement: the member 4 is abutted to the reset drive, and the needle bar is poor. 4/ is thus passed through the needle bar 2 to the 'sealing member 4 and the needle bar. According to the (four) _ _ not $ reading _ action member 3 detached from the worry. There is a method in which the slanted rod sealing member 4 is supported from the needle bar as a method for solving such a problem. In the technique of the rod sealing member 4 for the needle #^, the needle-like member 3 is known to be bonded with an adhesive to bond the needle bar to the UM115 structure = ===,,, the needle bar sealing member 4 is prevented from being used from the needle bar support, and the needle bar is sealed 2 (four) member 4 abuts against the needle bar 2, so that as the Zhishan sealing member 4 is released by the sliding friction, the lubricating oil is removed. The effect is that the slinger 2 is replaced with a new yoke brother T'f. The needle shank sealing member 4 rod supporting member is attached, but since the needle rod sealing member 4 bonds the yoke k over the adhesive, 剤, it is difficult to carry out Replace the job. SUMMARY OF THE INVENTION [Embodiment] Summary of the Invention Accordingly, it is an object of the present invention to provide a sealing member from a guide member. The structure is used to prevent the seal from being replaced. The sealing structure of the present invention comprises: a tubular guiding member; the reciprocating displacement medium phase passing through the guiding member 'and in the drawing direction is characterized in that any one of the writing portion and the guiding member is formed The joint surface is displaced by the displacement in the axial direction of the other of the base branch guide members. According to the present invention, the guide member that drives the (four) over-tube is guided and driven in a reciprocating displacement in the axial direction. The sealing member has a base portion and a seal #' is attached to the guide member by the base portion. If the sealing member is ruptured 1284715 5 10 15 ^ to the member, the inner peripheral portion of the sealing portion is elastically abutted to the outer portion of the driving pumping. Therefore, the driving shaft is driven by the reciprocating displacement, and it is possible to remove the driving = outer peripheral surface. Adhesives such as lubricating oil and particles. Any of the upper wire-shaped joints in the base portion and the guide member is used to light the base portion and the guide abutting surface. Since such a surface is formed, the drive shaft is driven to be reciprocally displaced in the axial direction, and the sliding portion acting on the shaft and the seal portion can prevent the base and the guide portion from being displaced in the axial direction. (10) Even if the sealing member on the drive shaft of the = position = drive, it is possible to surely prevent the seal from coming from the guide member. Further, when the member is sealed, the operator can easily replace the sealing member by tilting the new line direction of the sealing member and releasing the sealing member from the guide member to replace the sealing member. Get rid of. According to this, in addition, the present invention is characterized in that the fitting convex portion for forming the abutting surface is formed on the base, and the member is formed on the base portion and the other of the guide member by the embedded insert. Concave the recess. According to the present invention, in the base portion and the guide member, the convex portion of the abutting surface is formed, and in the base portion = forming, a fitting for embedding the convex portion is formed. "The other part of the eyepiece: the fitting protrusion" enters into the fitting recess, and the ball prevents the base: = the member is displaced in the decreasing direction. Therefore, the simple structure of the recessed--recess can be surely prevented. The sealing member and/or the fitting member are detached. Guide structure 20 1284715 Further, the present invention is characterized in that the driving shaft is a needle bar for holding the needle of the sewing machine, and the sealing member is sheathed to the guiding member for mounting. According to the present invention, The sewing needle relating to the sewing machine realizes a sealing structure for preventing the guiding member from being detached from the sealing member. Further, the invention is characterized in that the driving shaft is a circular needle bar for holding the sewing machine needle, and the sealing member is guided to the guide. The member is mounted. # According to the present invention, it is possible to relate to a ring needle 8 for holding a sewing machine needle, and a sealing structure for preventing the guiding member from being detached from the sealing member. According to the present invention, the fitting convex portion and the fitting concave portion are respectively provided over the entire circumference in the circumferential direction. According to the present invention, the fitting convex portion and the fitting concave portion can be positioned so that the sealing member and the guiding member are In this way, the 15 seal portions can be properly abutted against the drive shaft, and it is possible to realize a structure in which the deviation of the seal portion is uniformly caused without deviation in the circumferential direction. Since the convex portion and the fitting concave portion are respectively provided over the entire circumference in the circumferential direction, when the sealing member is attached to the guide member by the operator, it is not necessary to perform positioning in the circumferential direction, so that the mounting can be easily performed. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a part of a structure relating to a needle bar of a sealing structure according to an embodiment of the present invention. 1284715 Fig. 2 is a cross-sectional view showing a part of a structure relating to a needle bar of a sealing structure in an enlarged manner. Fig. 3 is a view showing a slit having a sealing structure Fig. 4 is a perspective view showing a structure relating to a needle bar of a sealing structure. Fig. 5 is a perspective view showing a structure relating to a ring stitch needle of a sealing structure. Fig. 6 is a front view A cross-sectional view of a portion of the structure associated with the annular needle bar of the sealing structure is seen on one side. # Figure 7 is a cross-sectional view of a portion of the structure associated with the circular needle 10 of the sealing structure as seen from the side of the plane. Fig. 8 is a cross-sectional view showing a part of a structure relating to a ring stitch bar of a sealing structure in an enlarged manner. Fig. 9 is a cross-sectional view showing a part of a structure relating to a needle bar of a sewing machine in the prior art. Fig. 10 is a view showing a prior art and DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION The preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. Fig. 1 is a cross-sectional view showing a part of a structure relating to a needle bar 12 of a sealing structure 10 as an embodiment of the present invention. Fig. 2 is a cross-sectional view showing a part of Fig. 1 in an enlarged manner. Fig. 3 is a perspective view showing the sewing machine 11 having the sealing structure 10. Fig. 4 is a perspective view showing the structure of the 1284715 relating to the needle bar 12 of the sealing structure. In the third embodiment, for example, the sewing machine 11 as an industrial sewing machine grips the object to be sewn (not shown) by the needle plate 15 and the pressure plate 16, and conveys it in a predetermined conveyance direction B by a feed tooth (not shown). At the same time, the needle driving direction Cl and C2 of the needle 17 are moved upward and downward, and the sewing object can be sewn. Hereinafter, one of the needle driving directions ci is referred to as an upper C1, and the other of the needle driving directions C2 is referred to as a lower C2. The sewing machine 11 is provided with a hollow sewing machine main body 23 and functions as a casing which houses a drive mechanism for driving the needle 17 or the like inside. The sewing machine main body 23 has a frame 2〇 provided with a needle plate 15; the pillars 21, 10 are erected from one end of the frame 20; and an arm portion 22 extending from the upper end portion of the pillar 21 along the frame 20; It is roughly c-shaped. 4, in the portion of the arm portion 22 disposed above the needle plate, the inner space 31 of the arm portion 22 is defined by a pair of side wall portions and a top portion 27 and a bottom portion 28, on the top portion 27 and the bottom portion 28, Cylindrical needle bar support 15 members 29, 30 are respectively fixed. Each of the needle bar supporting members 29 and % as the guide members is disposed such that the respective axes are arranged in the vertical direction and are coaxial. The needle bar 12, which is passed through the respective needle bar supporting members 29, 30 so as to be coaxial with the needle shaft, is disposed in the up-and-down direction of the needle axis 12, and at least the lower end portion 25 as an end portion of the axial direction is passed from the arm. The section 22 faces the frame 2 () and protrudes (four) below the Saki (4). In the present embodiment, the needle bar 12 passes through the arm portion 22 in the up-and-down direction, and the upper end portion of the other end portion in the axial direction protrudes upward from the arm portion 22. The needle bar 12 is supported and guided by the respective needle bar supporting members 29, 30, and is freely displaceable along its axis u2, the rod u being at least the outer peripheral surface of the shaft portion guided by the respective needle bar supports 29, 30, It is formed in a cylindrical shape. Each 1284715 5
10 15 =旱支承構件29、3G形成爲圓筒狀。針桿i2從未圖示的驅 動减傳送動力’並向作爲沿軸線U2之方向的機針驅動方向 Q、C2被往復㈣軸。在該針桿_下端部处設置機 針17，並且機針17被位移驅動。 爲了實現針桿12的順暢位移，對針桿12由臂部^内供 應潤滑油’潤滑針桿12和各針桿支承構件29、Μ之間。爲 了防止該潤滑油向臂部22外滲漏，在各針桿支承構件29、 30上分別安裝作爲筒狀的㈣構件的針桿㈣構件％％ ’使之同軸。臂部22的頂部27上所設置的上方針桿支承構 件29上安裝的上方針桿㈣構件％，設置於針桿支承構件 29的上端部。另外，料22的底物上所設置的下方針桿 氣構件3GJi*裝的下方針桿密封構彳㈣，設置於針桿支 ^構物的下端部。這樣，各針桿密封構件％、从設置於 與各針桿支承構件29、3〇供應騎油的位置相反方的端部10 15 = the dry supporting members 29, 3G are formed in a cylindrical shape. The needle bar i2 is reduced in transmission power from the drive (not shown) and is reciprocated (four) to the needle drive directions Q and C2 in the direction along the axis U2. A needle 17 is provided at the lower end of the needle bar, and the needle 17 is displaced by the displacement. In order to achieve smooth displacement of the needle bar 12, the needle bar 12 is lubricated between the needle bar 12 and each of the needle bar supporting members 29 and Μ by the lubricating oil in the arm portion. In order to prevent the lubricating oil from leaking to the outside of the arm portion 22, the needle bar (four) member %%' as a cylindrical member (4) is attached to each of the needle bar supporting members 29, 30 so as to be coaxial. The upper guide bar (four) member % attached to the upper stem supporting member 29 provided on the top portion 27 of the arm portion 22 is provided at the upper end portion of the needle bar supporting member 29. Further, the lower guide rod sealing mechanism (4) of the lower guide rod gas member 3GJi* provided on the substrate of the material 22 is provided at the lower end portion of the needle rod support structure. Thus, each of the needle bar sealing members % is provided at the end opposite to the position where the respective needle bar supporting members 29, 3 are supplied with oil.
即疋對於臂部22成爲外側的端冑。也就是說，各針桿密 封構件33、34相對於針桿12和針桿支承構件29、3()之間的 潤滑位置44，設置在臂部22的外側。 20 、由於各針桿密封構件33、34相對於沿針桿12之軸線L12 方即相對於上下方向是以對稱形式來構成的，因而 對於第1圖所示的下方針桿密封構件34將進行詳細說明，對 ；方針桿岔封構件33則省略其詳細說明。下方針桿密封 /、有·作爲基底部的外周基底部4〇 ;内周抵接部41 置方、外周基底部40的内側；連結部42，用來連結外周 土氐M〇和内周抵接部41。外周基底部40大致形成爲圓筒 11 1284715 狀，並且與内周抵接部4i相比，更向通過潤滑油進行潤滑 的潤滑位置44方突出。在該外周基底部40内套入針桿支承 構件30的下端部，並使外周基底部4〇的内周面邮緊密抵接 】針桿支承構件30的外周面47上，針桿密封構件34外套到 針桿支承構件30上進行安裝。潤滑位置44是針桿12和針桿 支承構件3〇沿徑向夾持潤滑油所相對的位置。在安裝到針 桿支承構件30上的狀態下，除去外周基底部4〇上與針桿納 冓件30的外周面47所抵接的内周面46之外的剩餘内周面 46b ’其形成爲隨著朝向軸線方向的下端部而直徑逐漸縮 在安裝到針桿支承構件3〇上的狀態下，作爲針桿密封 =牛34内周部的内周抵接部41設置到比潤滑位置料更靠 臂部22的外側，即相對於供應潤滑油的位置相反的一側， 並且在該潤滑位置44的外側接觸到針桿12的外周面抑上 5。内周抵接部41具有作爲密封部的油封部5()及防塵密封部 ❿=。油封部5G及防塵密封部52彈性抵接到針桿12的外周面 。土 M〇上形成抵接面53，用來對針桿支承構 20 件30的軸線方向位料行支持。抵接面沿少具有相對於 針桿支承構件30的赠方向傾斜的面。在本實施方式中， 用來形成抵㈣3的嵌合凸部54賴於相絲部4〇上， =5?=件3°上形成用來錢合凸部5顿入的嵌 1 P ^合凸部54其外周基底部4〇的内周面部46a、向 佐向内側突出且在包含軸線的假想平面上切開嵌合凸部54 12 1284715 後的形狀，形成爲圓弧狀。嵌人 π 〇凸邛54對於外周基底部40 = _位置’並且設置在圓周方向整周的範 圍上。在安裝到針桿支承構件 5 10 15 20 的狀恶下，肷合凸部54 >成於比内周抵接部41更靠臂部22的内側。另外，於人凸 部54形成於外周基底部4()_線方向上部。另外，在安裝 到針桿支承構件30上的狀態下，在相基底㈣的内周面 =、比抵制針桿支承構件5Q的外周面47上的關面奶轴 線方向中心、部更靠上方的位置，形成嵌合凸料。嵌合凹 部55其針桿支承構件3〇的外周面部仏、向徑向内側成爲凹 形且在包含軸線的假想平面上㈣嵌合凸料後的形狀， 形成爲㈣狀。嵌合凹部55對於針桿支承構件30的軸線方 向是相同的位置’並且設置在圓周方向整周的範圍上。 在對該針桿密封構件34穿通針桿2的狀態下，内周抵接 ^M1進行彈性k形使之向徑向外侧張開，油封部兄及防塵 密封部52彈性抵接到針桿12的外周面仙上。 第5圖疋表不與密封結構1〇的環縫針桿6〇有關的結構 視圖。第6圖是從正面一側看到並表示與密封結構_ 襄縫針桿60有關的結構一部分的剖面圖。第7圖是從平面一 側看到並表示與密封結構丨〇的環縫針桿6 〇有關的結構一部 分的剖面圖。第8圖是放大表示與密封結構1〇的環缝針桿6〇 有關的結構一部分的剖面圖。在第7圖中，爲了易於進行理 解將一部为做成剖面進行表示。在機架2〇的内部，在針 板15的下方設置環縫針機構部61。 環缝針(looper)機構部61所具備的環縫針62在針板15 13 1284715 的下方進行下述的前移動作和後退動作，並且該動作被控 制爲與機針η的往復位移同步，該前移動作沿著機針落下 =置的後側向進人方向Em行位移，該後退動作沿著機針 各下位置的前側向退後方向拉進行位移。環縫⑽用來在 =前移動作時將向上方C1進行位移的機_後側所形成 針線壤勾住並拉出’並在後退時使自身後側保留的環線 =下方C2進行位移的機針17來勾住，在被縫製物的裏面 y成針線和環線被其他線打環的接縫。 10 15 20 環縫針62在與機針17的機針驅動方向C1、〇大致正交 ^想平面内，進行沿著以進退方向£1、邮長軸並以機 向洛下位置爲中心的指定寬度橢圓執跡的動作，該進退方 針60在Γ是與被縫製物送料方向Μ致正交的方向。環縫 針架6::動轴的環縫針桿6。—個端部，介㈣縫 環二針桿6。的軸線L6。其配置爲，機針Η的機針驅動方 较…被縫製物送料方向B大致正交的方向爲大 平仃。環縫針桿60穿通作爲其他導向 二 广冓件66使之同轴來進行設置，並 支 個端部從環_桿支承構祕突出=財向的— 被環縫針桿支承構件66所支承及導向，= 置並 it ^ /σ者其軸線L60自如 :立私’並且在轴線周圍自如進行角度位移。另 針桿60料沿導孔74_塊73 衣 線U0自如進行位移， 力被W ’亚沿者轴 上。 怖成於環縫針桿導向器65 14 1284715 5That is, the end portion of the arm portion 22 is the outer side. That is, the respective needle bar sealing members 33, 34 are disposed outside the arm portion 22 with respect to the lubrication position 44 between the needle bar 12 and the needle bar supporting members 29, 3 (). 20, since each of the needle bar sealing members 33, 34 is formed symmetrically with respect to the axis L12 of the needle bar 12, that is, with respect to the vertical direction, the lower stem sealing member 34 shown in Fig. 1 will be performed. In detail, the detailed description of the guide bar sealing member 33 will be omitted. The lower guide bar seal/the outer peripheral base portion 4b as the base portion; the inner peripheral abutment portion 41 and the inner side of the outer peripheral base portion 40; and the connecting portion 42 for connecting the outer peripheral band M氐 and the inner circumference The joint 41. The outer peripheral base portion 40 is formed substantially in the shape of a cylinder 11 1284715, and protrudes more toward the lubrication position 44 that is lubricated by the lubricating oil than the inner circumferential abutting portion 4i. The lower end portion of the needle bar supporting member 30 is fitted into the outer peripheral base portion 40, and the inner peripheral surface of the outer peripheral base portion 4 is tightly abutted on the outer peripheral surface 47 of the needle bar supporting member 30, and the needle bar sealing member 34 is attached. The outer sleeve is attached to the needle bar support member 30 for mounting. The lubrication position 44 is a position at which the needle bar 12 and the needle bar support member 3 are opposed to each other in the radial direction. In the state of being attached to the needle bar support member 30, the remaining inner peripheral surface 46b' of the outer peripheral base portion 4's outer peripheral surface 46 abutting against the outer peripheral surface 47 of the needle bar damper 30 is removed. In a state in which the diameter is gradually contracted toward the needle bar supporting member 3A as the lower end portion in the axial direction, the inner circumferential abutting portion 41 as the needle bar seal = the inner peripheral portion of the cow 34 is set to the lubricating position. Further, the outer side of the arm portion 22, that is, the side opposite to the position where the lubricating oil is supplied, and the outer peripheral surface of the needle bar 12 are contacted by 5 on the outer side of the lubricating position 44. The inner circumferential abutting portion 41 has an oil seal portion 5 () and a dust seal portion ❿ = as a seal portion. The oil seal portion 5G and the dust seal portion 52 elastically abut against the outer peripheral surface of the needle bar 12. An abutment surface 53 is formed on the soil M to support the axial direction of the needle bar support member 30. The abutting surface has a face that is inclined with respect to the feeding direction of the needle bar supporting member 30. In the present embodiment, the fitting convex portion 54 for forming the abutting (4) 3 depends on the phase wire portion 4, and the inserting 1 P ^ for forming the punching convex portion 5 is formed on the member 3°. The convex portion 54 has an inner peripheral surface portion 46a of the outer peripheral base portion 4A, and has a shape in which the fitting convex portion 54 12 1284715 is formed so as to protrude inward in the imaginary plane including the axis, and is formed in an arc shape. The inlaid π 〇 〇 54 is disposed for the outer peripheral base portion 40 = _ position ' and is disposed over the entire circumference of the circumferential direction. The splicing convex portion 54 > is formed on the inner side of the arm portion 22 than the inner circumferential abutting portion 41 in the case of being attached to the needle bar supporting member 5 10 15 20 . Further, the human convex portion 54 is formed on the outer peripheral base portion 4 () in the line direction upper portion. Further, in the state of being attached to the needle bar supporting member 30, the inner peripheral surface of the phase substrate (4) is higher than the center and the portion of the outer surface of the outer peripheral surface 47 of the needle bar supporting member 5Q. The position forms a fitting projection. The fitting concave portion 55 has a shape in which the outer peripheral surface portion of the needle bar supporting member 3b is concave in the radial direction and is fitted to the imaginary plane including the axis (4), and is formed in a (four) shape. The fitting recess 55 is the same position '' in the axial direction of the needle bar supporting member 30 and is provided over the entire circumference in the circumferential direction. In a state in which the needle bar sealing member 34 is passed through the needle bar 2, the inner circumferential abutment M1 is elastically k-shaped to open radially outward, and the oil seal portion and the dust seal portion 52 elastically abut against the needle bar 12. The outer surface of the fairy. Fig. 5 is a structural view not showing the annular needle bar 6〇 of the sealing structure 1〇. Fig. 6 is a cross-sectional view showing a part of the structure relating to the sealing structure _ quilting needle bar 60 as seen from the front side. Fig. 7 is a cross-sectional view showing a portion of the structure relating to the annular needle bar 6 密封 of the sealing structure 从 as seen from the plane side. Fig. 8 is a cross-sectional view showing, in an enlarged manner, a part of the structure relating to the ring stitch 6 〇 of the sealing structure 1 。. In Fig. 7, a part is shown as a cross section for ease of understanding. Inside the frame 2, a ring stitch mechanism portion 61 is provided below the needle plate 15. The ring stitch 62 provided in the looper mechanism unit 61 performs the following forward movement and retreat operations below the needle plate 15 13 1284715, and the operation is controlled to be synchronized with the reciprocal displacement of the needle η. The front movement is performed along the needle drop=the rear side of the needle is displaced in the direction of the entry direction Em, and the backward movement is displaced in the backward direction along the front side of each lower position of the needle. The ring seam (10) is used to move the needle line that is displaced to the upper C1 when the front is moved, and the needle line formed by the back side is hooked and pulled out, and the ring line that retains the back side of the back when the back is retracted = the lower C2 is displaced. The needle 17 is hooked, and the inside of the object to be sewn is a seam in which the needle thread and the loop are looped by other threads. 10 15 20 The ring stitch 62 is positioned substantially perpendicular to the needle driving direction C1 and 〇 of the needle 17, along the direction of the advance and retreat direction, the postal axis, and the machine-centered position. The operation of the width ellipse is performed, and the advancing and retreating policy 60 is a direction orthogonal to the direction in which the object is to be sewn. Annular stitch needle holder 6:: The circular needle bar 6 of the moving shaft. One end, four (four) sewing ring two needle bar 6. The axis L6. It is arranged such that the needle driving of the needle Η is substantially flat in a direction substantially orthogonal to the feeding direction B of the sewing material. The circular needle bar 60 is passed through as another guide yoke 66 so as to be coaxially disposed, and the end portions are supported from the ring-and-rod support structure = the financial direction - supported and guided by the circular needle bar support member 66 , = set and it ^ / σ whose axis L60 is free: stand and 'have angular displacement around the axis freely. In addition, the needle bar 60 is freely displaced along the guide hole 74_block 73, and the force is applied to the W's edge. Terror into the needle stitch guide 65 14 1284715 5
10 20 在環縫針桿導向器65的一側部分上突出設置環縫針連 桦77，並且其在同側成平行所配備的下軸68上，介由環縫 2別後偏心器71及環縫針前後連桿72進行連結。採用這種 二構，在環縫針桿導向器65上通過與下軸68的旋轉相應的 "^縫針觔後偏心器71的動作，介由環縫針連桿77使推拉力 产乍用"亥作用力從環縫針桿導向器65介由滑塊73傳送到 縫針扣60上，環縫針桿6〇同步於與機針17的往復位移驅 動連動的下軸68的旋轉，圍繞軸進行擺動。 p、在破％縫針桿導向1165所支承的環縫針桿60下部，與 二縫針#6G的⑽L6G大致正交來配設環縫針軸69,基底部 2環縫針_上的環縫針擺㈣的頂端接合在環編十 :〇上。環縫針軸69是一種擺動軸， 構連結到下鈾& u 、，t 日]曲抦機 行擺動 卜季由68上，亚與下軸68的旋轉相對應圍繞軸線進 環縫構部61的上述那種結構， 斜声七 起圍繞軸線進行擺動，並且隨著料 些二是線方向進行衫行程的進退動作; 轴線的旋轉二位移驅動連動的圍線下_ 樣因環縫針二:置於環縫針桿6°-個端部上的環 針62沿著離軸心被安裝，因此環縫 度對應的爲長轴並具有與進行擺動的角 内側產生的二 =:軌跡進行動作。借助、 形成上迷那樣的接縫的錢位移驅動之間的共同動作，來 15 1284715 %縫針捍60至少被環縫針 分67外周面形 、，'承構件66所導向的軸部 ^ ^ ® η ^ 3 亚且裱縫針桿支承構件66形 5 10 15 20 亚向作爲沿轴線⑽之方向的進退動=傳达動力， 驅動。 向1 Ε2被往復位移 n到環縫針桿_順暢位移，對環縫針桿 縫針才干支承構件66内供顧 針桿支承構件66^π 針㈣和環縫 構件66外/ 止該潤滑油向環縫針桿支承 爲其他==::支承構件66上分別安裝筒狀作 針桿密封物 的位置相反方的端部。★支承構祕與供應湖滑油 !針捍㈣構件75和針桿密封構件33、34相似，對 3=密封構件75的結構附加與上述針桿密封構机 行說^的結構相同的參照符號，僅僅對於不同的結構進 ^對於相同的結構則省略其說明。 部的環缝針桿密封構件75具有：作爲其他基底 =底部80 ;内周抵接雜，設置於外周基底部8〇 心’連結部82,用來連結外周基底部8〇和内周抵接部 81相夕周基底部8〇大致形成爲圓筒狀，並且與内周抵接部 環通過潤滑油進行潤滑的潤滑位置76方突出。該 到^干山封構件75在壞縫針桿支承構件66的-個端部套 到心、、刚上’使外周基底部80的内周面86緊密抵接 衣、逢針桿支承構件66的凸狀部9〇的外周面87上，環縫針 16 上284715 構件75外套到環縫針桿支承構件％上進行安裳，該 。^周部與剩餘部分相比向徑向内側退縮形成的 間:：==::_環_^ 針;糾㈣針桿支承構件66上的狀態下，作爲環縫 滑、、I:封構件75内周部的内周抵接部81設置到對於供應潤 位置相反的一側’並且在該潤滑位置76的外側接觸 密2針桿60的外周面88上。内周抵接部81具有作爲其他 10 15 20 部84彈1由封㈣3及防塵密封部84。油封部83及防塵密封 °弹性抵接到環縫針棹60的外周面88上。 卜周基底°_上料抵接面53，絲^環縫針桿支 對^66的轴線方向位移進行支持。抵接面53具有至少相 方^縫針桿支承構件66的轴線方向傾斜的面。在本實施 /中’用來形成抵接面53的嵌合凸部54形成於外周基底 :_上，並且在環縫針桿支承構件66上形成用來使後合凸 ^54嵌入的嵌合凹部55。後合凸部54其外周基底部40的内 :面部、向徑向内側突出且在包含軸線的假想 平面上切開 敗5凸部54後的形狀，形成爲圓弧狀。後合凸部54對於外 周基底糊的軸線方向是相同的位置，並且設置在圓周方 °正周的範圍上。肷合凹部55其環縫針桿支承構件的的外 周面部87、向徑向内側成爲凹形且在包含軸線的假想平面 上叫嵌合凸部54後的形狀，形成爲圓弧狀。好凹部55 ’皆於i衣縫針才干支承構件66的轴線方向是相同的位置，並且 設置在圓周方向整周的範圍上。嵌合凸部％的形成爲，圓 17 1284715 ^中y外周基底部_内周面86開始成爲 510 20 On the one side portion of the loop needle bar guide 65, a ring stitching needle bile 77 is protruded, and on the lower shaft 68 provided in parallel on the same side, the eccentric 71 and the ring stitch are separated by the ring slit 2 The front and rear links 72 are coupled. With the two configurations, the action of the crease post eccentric 71 corresponding to the rotation of the lower shaft 68 on the ring needle bar guide 65 is used to cause the push-pull force to be produced by the ring stitch link 77. The urging force is transmitted from the circular needle bar guide 65 to the needle pin 60 via the slider 73, and the ring needle bar 6 is oscillated about the axis in synchronization with the rotation of the lower shaft 68 that is driven in conjunction with the reciprocating displacement of the needle 17. p. The lower portion of the circular needle bar 60 supported by the broken % needle bar guide 1165 is disposed substantially orthogonal to the (10) L6G of the double stitch #6G to provide the ring stitch shaft 69, and the top end of the ring stitch (4) on the ring stitch_ of the base portion 2 Engaged in the ring ten: 〇. The circular needle shaft 69 is an oscillating shaft that is coupled to the lower uranium & u, t, t ] 行 由 由 由 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 68 In the above-mentioned structure, the oblique sound oscillates around the axis, and the movement of the shirt is advanced and retracted as the second direction is the line direction; the rotation of the axis is two displacements driving the interlocking line below the _ sample due to the ring stitch 2: The ring needle 62 placed on the 6° end of the loop needle bar is mounted along the off-axis center, so that the degree of the ring seam corresponds to the long axis and has a two-way trajectory generated inside the corner where the swing is performed. By means of the common action between the money displacement drive forming the seam, the 15 1284715% needle 捍 60 is at least the outer circumference of the ring stitch 67, and the shaft portion guided by the bearing member ^^ ® η ^ 3 Sub-and quilted needle bar support member 66 shape 5 10 15 20 The sub-direction acts as a forward and backward movement in the direction of the axis (10) = communication power, drive. To 1 Ε 2 is reciprocally displaced n to the ring stitch needle _ smooth displacement, the ring stitch needle bar needle support member 66 is provided for the needle bar support member 66 ^ π needle (4) and the ring seam member 66 outside / the lubricant to the ring stitch The rod supports are the other end portions of the support member 66 to which the cylindrical needle rod seal is oppositely placed. ★ support structure and supply of lake oil! The needle (4) member 75 is similar to the needle bar sealing members 33, 34, and the structure of the 3 = sealing member 75 is attached with the same reference numeral as the structure of the above-mentioned needle bar sealing machine. The description is omitted for the same structure only for different structures. The annular needle bar sealing member 75 of the portion has the other base = bottom portion 80; the inner circumference abuts on the outer peripheral base portion 8 and the center portion 8 is connected to the outer peripheral base portion 8 and the inner circumference abuts The portion 81 of the portion 81 is formed in a substantially cylindrical shape, and protrudes from the lubrication position 76 where the inner circumferential abutment portion ring is lubricated by the lubricating oil. The stem-sealing member 75 is sleeved at the end of the broken needle bar support member 66 to the center, and the inner peripheral surface 86 of the outer peripheral base portion 80 is closely abutted against the garment, and the needle bar support member 66 On the outer peripheral surface 87 of the convex portion 9A, the 284715 member 75 on the annular needle 16 is fitted onto the annular needle bar support member % for the sake of the body. ^The circumference of the circumference is retracted toward the radially inner side compared with the rest::==::_ring_^ needle; correcting (4) in the state of the needle bar support member 66, as a ring seam slip, I: sealing member The inner circumferential abutment portion 81 of the inner circumferential portion of the 75 is disposed to the side opposite to the supply lubrication position and is in contact with the outer circumferential surface 88 of the dense needle bar 60 on the outer side of the lubrication position 76. The inner circumferential abutting portion 81 has a seal (4) 3 and a dust seal portion 84 as the other 10 15 20 portions 84. The oil seal portion 83 and the dust seal ° are elastically abutted against the outer peripheral surface 88 of the ring stitch 60. The circumference of the base_the upper abutment surface 53 and the wire loop needle support support the axial displacement of the ^66. The abutting surface 53 has a surface inclined at least in the axial direction of the needle bar support member 66. In the present embodiment, the fitting convex portion 54 for forming the abutting surface 53 is formed on the outer peripheral base: _, and a fitting recess for inserting the rear fitting projection 54 is formed on the annular needle bar supporting member 66. 55. The rear convex portion 54 has a shape in which the inner surface of the outer peripheral base portion 40 protrudes inward in the radial direction and is cut in the imaginary plane including the axis, and the convex portion 54 is cut into a circular arc shape. The rear projections 54 are the same position with respect to the axial direction of the peripheral base paste, and are disposed over the circumferential circumference of the circumference. The outer peripheral surface portion 87 of the loop-shaped needle bar support member of the twisted concave portion 55 has a shape that is concave in the radial direction and is called a fitting convex portion 54 on a virtual plane including the axis, and is formed in an arc shape. The good recesses 55' are all at the same position in the axial direction of the i-needle support member 66, and are disposed over the entire circumference of the circumferential direction. The fitting convex portion % is formed as a circle 17 1284715 ^ y outer peripheral base portion _ inner peripheral surface 86 starts to become 5
1515
20 城針桿密封構件75對於相基底物，具有虚各 干"、封構件33、34的外周基底部術目同的配置結構:、 里根據上面所說明本實施方式的密封結伽 %縫針桿6〇(Τφ，進行總稱 、’干 壯 不冉爲驅動軸」）通過筒 5各針敎承構物、观環縫轉衫構件66(下面， 2總稱時有時稱爲「導向構件」）進行導向，並按軸線方 Κ主设位移驅動。針桿密封構件33、34及環縫針桿密封 構件75(下面’進行總稱時有時稱爲「密封構件」）具有外周 基底部4G、80、油封獅、83及防塵密封部52、叫下面， 進行總稱時有時稱爲「密封部」），並利用外周基底部、 8〇安裝到導向構件29、3〇、66上。若密封構件％、％、乃 女裝到導向構件29、30、66上，則密封部5〇、52、83、84 的内周部彈性抵接到驅動軸12、6〇的外周面±，因此通過 對驅動軸12、60進行往復位移_，訪以獅驅動轴12 、60的外周面上所附著的潤滑油及微粒。在外周基底部牝 、80上形成抵接面53，用來對導向構件29、3〇、砧的軸線 方向位移進行支持。由於形成這種抵接面53，因而驅動軸 12、60按軸線方向進行往復位移驅動，並借助於在驅動軸 12、60和密封部50、52、83、84上起作用的滑動摩擦，可 以防止外周基底部40、80對導向構件29、30、66按軸線方 向進行位移。因此’即便是設置於進行往復位移驅動的驅 動轴12、60上的在、封構件33、34、75，也可以確實防止密 封構件33、34、75從導向構件29、30、66脫離。另外，即 18 1284715 便疋用潤滑油進行潤滑I易於從驅動軸i2、6q脫離的密封 冓牛3 34 75’也可以採用本發明的結構來確實防止穷 封構件33、34、75從導向構件29、30、66脫離。因而，: 需如同以往技術那樣，採用黏接劑來黏接導向構件29、30 66和密封構件33、34 密封 75目此㈣請業者簡單更換 鏠紉機忪Π5。尤其是，可以適用於如上的工業用 鏠針椁6 G U㊣速且高周期進行往復位移驅動的針桿12及環 10 15 20 33、外’在將密封構件33、34、75更換成新的密封構件 構件29 i 75時，由於作業者使密封構件33、34、75對導向 構件33 3〇、66的軸線產生傾斜’因而可以容易地讓密封 換宓私、34、75從導向構件29、30、66脫離。據此，在更 、構件33、34、75時，可以容易地進行更換。 外，在外周基底部4〇、8〇上形成用來形成抵接面” 甘欠合凸q , 凸部54山U ，在V向構件29、30、66上形成用來使嵌合 爭八〜入的敗合凹部55。因而，通過嵌合凸部54嵌入到 P55中，可以轉實防止外周基底部、8〇相對於導 向構件29 凹部叫13〇、66在軸線方向進行位移。因而，採用欲合 止资和耿合凸部54那樣的簡單密接結構，就可以確實防 .、舞件33、34、75從導向構件29、30、66脫離。 向> ^外’嵌合凸部54其外周基底部40、80的内周面部、 °内側突出且在包含軸線的假想平面内切開嵌合凸部 54後的形此 夕狀’形成爲圓弧狀。因而，在將密封構件33、34 、75安壯 衣到導向構件29、30、66上時，不用嵌合凸部54勾 19 1284715 桂到導向構件29、3〇、66的外周面部4〇、8〇上，就被導向 到嵌合凹部55上。據此，作業者可以容易地將密封構件33 、：34、75安裝到導向構件29、30、66上。 另外，嵌合凸部54和嵌合凹部55分別設置在圓周方向 5整周的範圍上。因而，嵌合凸部54和嵌合凹部55可以進行 定位，以便密封構件33 ' 34、75及導向構件29、30、66的 各軸線成爲同軸。據此，可以使密封部5〇、52 ' 83、料恰 當抵接到驅動軸上，能夠實現不在圓周方向的範圍内產生 • 偏差而均勻帶來密封部50、52、83、84的刮除效果之結構 10。另外’由於嵌合凸部54及嵌合凹部55分別設置在圓周方 向整周的範圍上，因而在作業者對導向構件29、3〇、66安 裝密封構件33、34、75時，無需進行圓周方向的定位，因 此可以容易地進行安裝。 另外，嵌合凸部54及|合凹部55也可以分別形成於圓 is周方向的-部分上。另外，嵌合凸部54及後合凹部55也可 卩分別按軸線方向空出間隔來形成多個。據此，可以獲得 防止因多個嵌合凸部54及嵌合凹部55而引起的向轴線方向 的位移之效果，使防止密封構件33、34、75從導向構件四 、30、66脫離的效果得到提高。另外，還可以減小嵌合凸 20料絲合凹部55±的滑動摩擦力，能驗防脫的縣 到提高。 、在安裝到針桿支承構件30上的狀態下，嵌合凸部54形 成於比内周抵接部41更靠臂部22的内側。因此，若針桿U 向下方C2進行了位移及驅動，則内周抵接部々丨朝向下方 20 1284715 産生變形。另外，若環縫針桿60向進入方向Ει進行了位移 及驅動，則内周抵接部81朝向進入方向幻産生變形。若内 周抵接部41、81產生了變形，則連結部42、们其變形爲， 以徑向外側的端部爲中心進行角度位移。利用這種連結部 5 42、82的變形，作爲外周基底部4()、8{)軸線方向—個端部 的下端部朝向徑向外側產生變形，並且作爲外周基底部4〇 、80軸線方向另-端部的上端部朝向徑向内側産生變形。 因而，欲合凸部54形成於外周基底部4〇、8〇的轴線方向另 籲—端部上，並且形成在比導向構件29、30、66的外周面47 10、87上所抵接的内周面46、86的轴線方向中心部更靠上方 C1及退後方向E2的位置上，因此可以_密接狀態，使防 脫的效果進一步得到提高。 另外，在上述實施方式中，抵接面53利用了嵌合凸部 54來實現，但是並不限於此。另外，在上述實施方式中， 15用來形成抵接面53的嵌合凸部54形成於外周基底部4〇、8〇 上，並且在導向構件29、30、66上形成用來使欲合凸部54 馨纟入的嵌合凹部55,但是並不限於此。也可以讓用來形成 抵接面53的嵌合凸部54形成到導向構件29、3〇、66上，並 且在外周基底部40、8G上形成絲使嵌合凸部54嵌入的嵌 2〇合凹部55。借此，也可以達到同樣的效果。 另外，由於驅動軸12、6〇、導向構件29、30、66及密 封構件33 ' 34、75按上述那種材料的組合、尺寸精度及表 面粗縫度來形成，因而可以4實發揮各密封構件％、3心 75的性能，達到更高的密封性，同時利用驅動軸12、的的 21 1284715 復位私驅動來防止密封構件％、％、75從導向構件29、 30、66脫離。 另外’嵌合凸部55沿輪線方向形成於芯部的徑向内側 。由於形成於芯部的徑向内側，因而可以加讀合凸部分 f向輕向_擠㈣力。因此，可以防止嵌合凸部分從巍 5凹部54脫離。 10 15 20 —述實施方式只不過是本發明的示例，而在本發明的 :圍内可以對結構進行變更。例如，還可以將上述各實施 ^以適纽合，並且油封部及防塵密封部的結構並不20 City Needle Bar Sealing Member 75 has the same configuration of the outer peripheral base portion of the base member for the phase substrate, and the sealing member 33, 34: the sealing knot gamma needle according to the embodiment described above The rod 6〇 (Τφ, collectively referred to as 'dry and strong as the drive shaft') passes through the respective pin supporting members of the cylinder 5, and the loop-spinning shirt member 66 (hereinafter, referred to as "guide member" in the following general term) Guide the drive and drive it according to the axis of the main displacement. The needle bar sealing members 33, 34 and the annular needle bar sealing member 75 (hereinafter referred to as "sealing member" when collectively referred to as a general term) have outer peripheral base portions 4G, 80, oil seal lions, 83, and dust seal portion 52, called below. In the case of a general term, it may be referred to as a "sealing portion", and it is attached to the guide members 29, 3, and 66 by the outer peripheral base portion. If the sealing members %, %, or the like are applied to the guide members 29, 30, 66, the inner peripheral portions of the seal portions 5, 52, 83, 84 elastically abut against the outer peripheral surface ± of the drive shafts 12, 6 Therefore, by reciprocating the drive shafts 12, 60, the lubricating oil and particles adhering to the outer peripheral surfaces of the lion drive shafts 12, 60 are accessed. An abutting surface 53 is formed on the outer peripheral base portion 、, 80 for supporting the displacement of the guide members 29, 3, and the anvil in the axial direction. Since the abutting surface 53 is formed, the drive shafts 12, 60 are reciprocally displaced in the axial direction, and by means of sliding friction acting on the drive shafts 12, 60 and the sealing portions 50, 52, 83, 84, The outer peripheral base portions 40, 80 are prevented from being displaced in the axial direction by the guide members 29, 30, 66. Therefore, even if the sealing members 33, 34, and 75 are provided on the driving shafts 12 and 60 that are driven by the reciprocating displacement, the sealing members 33, 34, and 75 can be surely prevented from being detached from the guiding members 29, 30, and 66. In addition, 18 1284715, the lubricant is lubricated with lubricating oil. The sealed yak 3 34 75' which is easily detached from the drive shafts i2, 6q can also adopt the structure of the present invention to surely prevent the deflating members 33, 34, 75 from the guiding members. 29, 30, 66 are separated. Therefore, it is necessary to use the adhesive to bond the guiding members 29, 30 66 and the sealing members 33, 34 as in the prior art to seal the 75 mesh. (4) The operator is simply replaced with the 忪Π5 machine. In particular, it can be applied to the above-mentioned industrial needle 椁 6 GU positive speed and high cycle reciprocating displacement driven needle bar 12 and ring 10 15 20 33, external 'in the sealing member 33, 34, 75 replaced with a new one When the member member 29 i 75 is sealed, since the operator causes the sealing members 33, 34, 75 to incline the axis of the guide members 33 3 〇, 66, it is possible to easily change the seal, 34, 75 from the guide member 29, 30, 66 detached. Accordingly, the replacement of the members 33, 34, and 75 can be easily performed. Further, on the outer peripheral base portions 4, 8, a contact abutting surface is formed to form a contact surface, and the convex portion 54 is formed on the V-direction members 29, 30, 66 to make the fitting Therefore, the fitting recess 54 is fitted into the P55, so that the outer peripheral base portion, 8〇 can be prevented from being displaced in the axial direction with respect to the concave portions of the guide member 29, 13〇, 66. It is possible to surely prevent the dancers 33, 34, 75 from being detached from the guide members 29, 30, 66 by a simple close-fitting structure such as the combination of the retaining and the engaging projections 54. The fitting convex portion of the > 54. The inner peripheral surface portion of the outer peripheral base portions 40 and 80 and the inner side of the outer peripheral portion 40 and 80 are formed in an arc shape after the fitting convex portion 54 is cut in the virtual plane including the axis. Thus, the sealing member 33 is formed. When 34, 75, and 75 brilliance clothes are applied to the guide members 29, 30, and 66, they are guided without the fitting convex portion 54 hook 19 1284715 to the outer peripheral surface portions 4, 8 of the guide members 29, 3, 66. To the fitting recess 55. Accordingly, the operator can easily mount the sealing members 33, 34, 75 to the guiding members 29, 30. Further, the fitting convex portion 54 and the fitting concave portion 55 are respectively provided over the entire circumference of the circumferential direction 5. Therefore, the fitting convex portion 54 and the fitting concave portion 55 can be positioned so as to seal the member 33' 34, 75 and the respective axes of the guide members 29, 30, and 66 are coaxial. According to this, the sealing portions 5, 52', 83 can be appropriately abutted against the drive shaft, and the deviation can be prevented from occurring in the circumferential direction. The structure 10 which uniformly brings out the scraping effect of the sealing portions 50, 52, 83, 84. In addition, since the fitting convex portion 54 and the fitting concave portion 55 are respectively disposed over the entire circumference in the circumferential direction, the operator is guided. When the sealing members 33, 34, and 75 are attached to the members 29, 3, and 66, it is not necessary to perform positioning in the circumferential direction, so that the mounting can be easily performed. Further, the fitting convex portion 54 and the fitting concave portion 55 may be formed in the circle respectively. In addition, the fitting convex portion 54 and the rear combining concave portion 55 may be formed in a plurality of spaces at intervals in the axial direction. Accordingly, it is possible to prevent the plurality of fitting convex portions 54 from being embedded. The direction of the axis caused by the recess 55 The effect of the displacement improves the effect of preventing the sealing members 33, 34, 75 from being detached from the guiding members 4, 30, 66. In addition, the sliding friction force of the fitting projection 20 yarn concavity 55± can be reduced, and the inspection can be performed. In the state of being attached to the needle bar support member 30, the fitting convex portion 54 is formed on the inner side of the arm portion 22 than the inner circumferential abutting portion 41. Therefore, if the needle bar U is downward When the C2 is displaced and driven, the inner circumferential abutting portion 产生 is deformed toward the lower portion 20 1284715. Further, if the annular needle bar 60 is displaced and driven in the entering direction, the inner circumferential abutting portion 81 faces the entering direction. Deformation occurs. When the inner circumferential abutting portions 41 and 81 are deformed, the coupling portion 42 is deformed so as to be angularly displaced about the radially outer end portion. By the deformation of the connecting portions 5 42 and 82, the lower end portions of the outer peripheral base portions 4 () and 8 {) in the axial direction are deformed toward the outer side in the radial direction, and serve as the outer peripheral base portions 4 and 80 in the axial direction. The upper end portion of the other end portion is deformed toward the radially inner side. Therefore, the convex portion 54 is formed on the other end portion of the outer peripheral base portions 4, 8, and is formed on the outer peripheral surfaces 47 10, 87 of the guide members 29, 30, 66. Since the center portions of the inner circumferential surfaces 46 and 86 in the axial direction are located above the upper C1 and the retracted direction E2, the detachment state can be further improved, and the effect of preventing the detachment can be further improved. Further, in the above embodiment, the abutting surface 53 is realized by the fitting convex portion 54, but the invention is not limited thereto. Further, in the above embodiment, the fitting convex portion 54 for forming the abutting surface 53 is formed on the outer peripheral base portions 4, 8 and is formed on the guide members 29, 30, 66 for the purpose of The convex portion 54 is spliced into the fitting recess 55, but is not limited thereto. It is also possible to form the fitting convex portion 54 for forming the abutting surface 53 to the guide members 29, 3, 66, and to form the wire on the outer peripheral base portions 40, 8G so that the fitting convex portion 54 is fitted. Concave portion 55. Thereby, the same effect can be achieved. Further, since the drive shafts 12, 6A, the guide members 29, 30, 66, and the sealing members 33' 34, 75 are formed by the combination of the above-described materials, the dimensional accuracy, and the rough surface degree, the seals can be effectively realized. The performance of the members %, 3 core 75 achieves a higher sealing performance while the private drive is reset by the 21 1284715 of the drive shaft 12 to prevent the sealing members %, %, 75 from being detached from the guide members 29, 30, 66. Further, the fitting convex portion 55 is formed on the radially inner side of the core in the direction of the wheel. Since it is formed on the radially inner side of the core, it is possible to add the convex portion f to the light-to-crush (four) force. Therefore, it is possible to prevent the fitting convex portion from being detached from the 凹 5 recess 54. 10 15 20 - The embodiment is merely an example of the present invention, and the structure can be changed within the scope of the present invention. For example, it is also possible to apply the above-mentioned embodiments to each other, and the structure of the oil seal portion and the dust seal portion are not
:上述⑽m卜，也侧涉料針和及環 縫針_的任—個，來實現密封結構。另外也可以 到針桿12及環縫針桿6G之外__，如 I 的壓椁，來實施密封結構。 料£板16 用ι=ΙΓ不脫離其宗旨或主要特徵的範圍内，採 用/、他各種各樣的方式加以實施。因此，从… 在所有方面只獨U例，而本剌叫施方式 求的範财，並科朗書正线行任何於權利要 於權利要求範圍的變形和變更全都在本發二者，屬 【圖式簡單說明】 乾圍内。 第1圖是表示作爲本發明一個實施方 一 針桿有關的結構-部分的剖面圖。 χ與㈣結構的 第2圖是放大表示與密封結構的針 分的剖面圖。 f的結構一部 第3圖是表示具備密封結構的縫初機的斜视圖 22 1284715 第4圖是表示與密封結構的針桿有關的結構的斜視圖。 第5圖是表示與密封結構的環縫針桿有關的結構的斜 視圖。 第6圖是從正面一側看到並表示與密封結構的環縫針 5 桿有關的結構一部分的剖面圖。 第7圖是從平面一側看到並表示與密封結構的環縫針 桿有關的結構一部分的剖面圖。 第8圖是放大表示與密封結構的環縫針桿有關的結構 一部分的剖面圖。 10 第9圖是表示以往技術與縫紉機的針桿有關的結構一 部分的剖面圖。 第10圖是表示以往技術與縫紉機的針桿有關的結構一 部分的分解斜視圖。 【主要元件符號說明】 l···縫紉機 16…壓板 2…針桿 17…機針 3…針桿支承構件 20…機架 3a…外周面 21…支柱 4…針桿密封構件 22…臂部 4a…内周面 23…縫紉機主體 10…密封結構 25…下端部 ll···縫紉機 26…上端部 12、60…驅動軸 27…頂部 15…針板 28…底部 23 1284715 29…針桿支承構件 29、30、66…導向構件 33、34、75…密封構件 40、80…外周基底部 41…内周抵接部 42、82…連結部 46…内周面 46a···内周面部 46b…内周面 47、87···外周面 47a…外周面部 48…外周面 50、52、83、84···密封部 50…油密部 52…防塵密封部 53…接面 54…嵌合凹部 55…嵌合凸部 60…環缝針桿 61…環縫針機構部 62…環縫針 64…環縫針架 65…導向器 66…針桿支承構件 67…轴部分 68…下轴 69…環縫針轴 70…環縫針擺臂 71…偏心器 72…前後連桿 73…滑塊 74…導孔 75…環縫針桿密封構件 76…潤滑位置 77…縫針連桿 80…外周基底部 81…内周抵接部 82…連結部 83…油封部 84…防塵密封部 86…内周面 87…外周面部 88…外周面 90···凸狀部 B…送料方向 Cl、C2···驅動方向 E1…前進方向 E2···退後方向 24 1284715 L60…轴線 L12…轴線The above (10) m is also involved in the needle and the needle _ to achieve the sealing structure. Alternatively, the sealing structure may be implemented by pressing the needle bar 12 and the ring stitch needle bar 6G, such as I. The material of the board 16 is implemented in various ways by using ι=ΙΓ without departing from its purpose or main features. Therefore, from all aspects, only U cases, and this is called the method of seeking the way, and the section of the section of the law is subject to the scope of the claims and all changes in the scope of the claims, [Simple description of the figure] Inside the dry circumference. Fig. 1 is a cross-sectional view showing a structure-part of a needle bar as an embodiment of the present invention. Fig. 2 is a cross-sectional view showing the relationship between the χ and (4) structures and the sealing structure. Fig. 3 is a perspective view showing a slitting machine having a sealing structure. 22 1284715 Fig. 4 is a perspective view showing a structure relating to a needle bar of a sealing structure. Fig. 5 is a perspective view showing a structure relating to a loop stitch bar of a sealing structure. Fig. 6 is a cross-sectional view showing a part of the structure related to the ring stitch 5 of the sealing structure as seen from the front side. Figure 7 is a cross-sectional view of a portion of the structure associated with the annular needle of the sealing structure as seen from the side of the plane. Fig. 8 is a cross-sectional view showing, in an enlarged manner, a part of the structure relating to the annular needle bar of the sealing structure. 10 Fig. 9 is a cross-sectional view showing a part of a structure related to a needle bar of a sewing machine in the prior art. Fig. 10 is an exploded perspective view showing a part of a structure related to a needle bar of a sewing machine in the prior art. [Main component symbol description] l···Sewing machine 16...Plating plate 2...Needle bar 17...Needle 3...Needle bar supporting member 20...Rack 3a...Outer peripheral surface 21...Pole 4...Needle bar sealing member 22...arm portion 4a Inner peripheral surface 23... Sewing machine main body 10... Sealing structure 25... Lower end part 11···Sewing machine 26... Upper end part 12, 60... Drive shaft 27... Top 15... Needle plate 28... Bottom 23 1284715 29... Needle bar support member 29 30, 66...guide members 33, 34, 75...sealing members 40,80...outer peripheral base portion 41...inner circumferential abutting portions 42,82...connecting portion 46...inner peripheral surface 46a···inner inner peripheral surface 46b... The circumferential surface 47, 87, the outer peripheral surface 47a, the outer peripheral surface 48, the outer peripheral surface 50, 52, 83, 84, the sealing portion 50, the oil-tight portion 52, the dust seal portion 53, the joint surface 54, the fitting recess portion 55 ... fitting projection 60... loop stitch needle 61... loop stitch mechanism portion 62... loop stitch 64... loop stitch holder 65... guide 66... needle bar support member 67... shaft portion 68... lower shaft 69... ring stitch shaft 70 ...loop needle swing arm 71...eccentric 72...front and rear link 73...slider 74...guide hole 75...annular needle bar seal member 7 6...lubrication position 77...needle link 80...outer peripheral base portion 81...inner circumferential contact portion 82...connection portion 83...oil seal portion 84...dust seal portion 86...inner peripheral surface 87...outer peripheral surface portion 88...outer peripheral surface 90·· · convex portion B...feeding direction Cl, C2···driving direction E1...advancing direction E2···retracting direction 24 1284715 L60...axis L12...axis
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