TW200819585A - Lubrication structure of sewing machine - Google Patents

Abstract

To provide a lubrication structure of a sewing machine, the lubrication structure achieving high lubricating performance without causing defects due to leakage of lubricant outside a housing and performing excellent lubrication of a sliding member which operates at high speed. The lubrication structure lubricates a support part of an upper looper rod 1 which slides in an axial longitudinal direction in accordance with operation of a looper driving shaft 21 and a looper crank 22 inside a sewing machine bed 2, wherein a holding body 3 is made of porous material in which many pores each having a diameter of 10 to 40 μm and continuous with one after another are formed at a porosity of 60 to 90%, and a part of the holding body 3 is approximated the support part of the upper looper rod 1, fixedly provided in the internal surface of the sewing machine bed 2, and the lubricant which is impregnated in and held by the holding body 3 is supplied to the support part of the upper looper rod 1.

Description

200819585 v IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a lubricating structure in which a support for a neighboring, a slanting, a ten, a sneaker, and an outer blade of a sewing machine are supported. The sliding element that slides in the axial direction by the support mechanism is lubricated according to the prior art. In the industrial sewing machine of recent years, it is possible to operate the squeaking sound A > The degree is moving towards idling. For the operation of the two speeds in the various Dudus 4, only the two speeds are running, the Keshou Department effectively lubricates a large amount of her parts that exist in the silk (旌Μ; from the inside of the 71 money money)

It is important that 1 thousand U turns 70 pieces and sliding elements). For the lubrication of the movable parts of the 7L sewing machine, as described in the bulletin, use the seams ^ 2004-1 55864 to use lubricating oil or grease. ^ The realization of the lubrication of the W oil, the green lubrication structure including the movable element # inside, the oil chamber in the waterproof state, the seal in the Shi 4 knife as the MH, the storage / door β oil using the pump This lubricating oil is introduced into the support portion of the movable member. In the case of entering, etc., and using the grease and the grease, it is sealed around the support part of the movable-and-shell method as another type of lubrication. # 封 封 封 封 封 封 封 封 封 封 封The enclosed part, Λ.卩 卩 卩 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 缓 的 的 的machine

2098-9003-PF 5, in addition to the above,

200819585, the classic wood is used - a kind of turbid structure, which uses grease on the one hand to lubricate the sword'--the same oil core when using and using lubricating oil, and 3 turbid grease in this dryer The oil core is placed in the inside of the outer casing in advance, so that the grease in the above grease is soaked in the oil anger 'to guide it to the lubrication part, to enter: January = use the grease that will be used for the turbidity to concentrate on the bottom of the outer casing. Further, the person is allowed to wet the above-mentioned oil core for recycling. V~Ά A couple's mouth j-moving element 'includes the needle bar, the curved needle bar, the needle pin 捍 in your..." The sliding element that slides in the direction of the shaft of the dry equalizer. The needle cup is in the sewing machine as the outer casing (4) The inside: so that the lower end of the Annon needle protrudes to the lower side of the sewing machine rocker arm = the seam of the shell is wide... (4) The upper needle needle cup hunting is supported by the support part provided as the outer: gas upper part to support the middle part (4): The upper end protrudes to the outside of the sewing machine. The clothes have the lubricating oil used for the lubrication of this kind of needle bar or upper, quite #_*_10 needles, and the temperature generated by the return speed operation is now Each of the lubricating oils that have risen in viscosity and passed through the gap between the various support parts, the heart is not in the air, the road is swayed to the outer sill, and scattered to the surroundings, and the system is completely smeared: 'sometimes even causing the working environment to deteriorate. > The problem of the leakage to the outside is that the retention ability of the lubricating oil stored inside the outer casing is insufficient, and the upper side support portion of the needle bar is caused by the upper core and the 'oil core. The above-mentioned upper bend, the support portion of the ten-cup cup, etc. are separated from the retention portion of the oil to the supply of the bow oil. It is difficult to ensure the amount of supply, and the support is for performance. 'Therefore, it is difficult to get good lubrication and leakage to the outside. It can also be alleviated by using grease as a lubricant to 2098~90〇3-pp 6 200819585. However, in lubricating oil The towel is made to disperse (4) KThiek. The semi-solid grease is separated from the predetermined temperature (Dropping P〇int), and has the oil-separating property f. The separated grease is formed into a knife even after cooling. It is not possible to mix with the thickener and cause the problem of losing the original lubricating function. In order to maintain a good lubrication state under high-speed operation, the grease must be frequently replaced. In the above-mentioned Japanese Patent Publication No. 2GG3-326G71, only grease is described. The oil component is wetted into the oil core and introduced into the lubrication part to recycle the grease. However, when the oil component is separated from the grease, the thickener remaining after the separation causes the oil core to clog. Since the thickener is not mixed with the oil component after the separation as described above, the recycling of the grease described in the special edition of the company is published. SUMMARY OF THE INVENTION The present invention has been made for such a reason, and aims to provide a lubricating structure for a sewing machine which does not cause lubrication. Highly lubricated performance is achieved in the event of a defect, so that the sliding element that is moving at a south speed can be well lubricated. In the lubricating structure of the sewing machine of the first invention of the present invention, a lubricant is supplied to the support portion of the sliding member of the sewing machine which slides in the axial direction in accordance with the movement of the movable mechanism inside the casing to lubricate the sliding member, and the characteristics thereof are characterized. In the case where the diameters of the plurality of pores are mutually connected, the ratio of the number of pores is 6. A part of the porous material holder formed by '% is close to 2098-9003-PF 7 200819585. The part is fixed to the inner surface of the outer casing, and the lubricant which is wetted by the holding body is supplied to the support portion. Further, in the lubricating structure of the sewing machine according to the second invention of the present invention, the first aspect of the invention is a synthesis (Synthetie Es_s) or a mixture of synthetic vinegar and oil. Further, in the lubricating structure of the sewing machine according to the third aspect of the invention, the lubricant of the first invention is applied to the holding body in a state of being heated and liquefied, and is retained by the holding body. Further, in the lubricating structure of the sewing machine according to the fourth aspect of the present invention, the holding body according to any one of the first to third aspects of the invention is disposed in the movable body according to the necessity of the dust contact of the movable mechanism. Within the action area of the organization. "For the purpose and novel features of these inventions, a more complete understanding of the following detailed description will be obtained in conjunction with the appended drawings. φ. [Embodiment] The following is a detailed description of the drawings showing the preferred embodiments. The first and second figures show the third embodiment of the lubricating structure of the sewing machine of the present invention. In the first and second figures, the needles are used to lubricate the looper needle on the seaming machine. The lubrication mechanism is shown in Fig. 1 as the upper curved needle bar, and 2 in the figure is the sewing machine as the outer casing. The sewing machine 2 includes an inner hollow hole in the shape of a rectangular shape. The upper part is provided with an opening 20 for communicating the inner hole to the outside, and the looper table 10 is fixed in such a manner as to cover the opening 2〇. The curved pin 2098-9003-PF 8 200819585 is set on the table 10 There is a guide hole ^ which is integrated into the opening 2〇 position and penetrates up and down. Inside the guide hole 11, the cylindrical needle guide 3 is freely rotatable around a horizontal axis perpendicular to the paper surface. Supported. The looper guide 13 has a support hole formed in a radial direction. 14. The upper looper needle bar 1 is supported by the support hole 14. The upper end of the upper looper needle guard protrudes to the upper side of the looper table 1〇, and the upper looper 15 is fixed to the upper looper needle guard. Further, the lower end of the upper looper needle j is extended into the inner hole of the sewing machine table 2 through the opening 20 provided in the sewing machine table 2. In the inner jade hole of the sewing machine opening 2 And a looper drive shaft 21 and a looper crank 22 for fixing the base end on the looper drive shaft 21, the lower end of the upper looper needle bar 1 extending into the inner hollow hole and the tip end of the looper crank 22 are pin-bonded The looper drive shaft 21 is repeatedly rotated within a predetermined angle range by a drive from a main machine spindle (not shown). Here, the looper drive shaft 2 is fixed at the base end of the looper crank 2 2 with the looper drive The shaft 21 is rotated up and down by the reverse rotation. Fig. 1 shows a state in which the looper crank 22 is rocked to the upper position, and a second graph shows a state in which the looper crank 22 is rocked to the lower position. The upper looper is connected to the looper crank to the tip end. The needle bar 1 is positioned above the drawing as shown by the shaking of the curved crank 22 and FIG. 2 The lower position is repeatedly moved up and down between the lower positions. At this time, the lower end of the upper looper needle bar 1 connected to the apex of the looper crank 22 is as indicated by the arrows in the i-th and second figures, along the curved needle drive shaft 21 The arc of the center is rocked up and down with the amplitude. Therefore, the upper bender 5 fixed to the upper end of the upper looper needle bar is drawn to the left in the upper position shown in Fig. 1 and is shown in Fig. 2 The movement trajectory of the position returning to the right direction. By the movement of the upper looper 15, the upward bend. Needle thread provided on the upper looper 15 and not shown can be rolled up. 2098-9003-PF 9 200819585 The vertical movement of the needle bar 1 is caused by sliding in the support hole 14 provided in the looper guide 13 as the support portion of the upper looper needle 1. The upper looper needle bar is generated by the swinging of the looper guide 13 about the horizontal axis as the up and down motion is swung in the left and right direction. At the inner circumference of the support hole 14 of the looper guide u, to connect to the upper looper needle bar! In a peripheral manner, a felt ring (Felt Ring) l6 is provided, which is at the upper position relative to the felt ring 6. The sea shell is sealed (Sea I R i ng) 1 7 〇

In order to lubricate the support portion of the upper looper needle bar, the holding body 3 is disposed as shown in the inner hollow portion ' of the sewing machine table 2 as the outer casing. This holder 3 is a porous (four) plate material including small-diameter pores connected to each other. Each of the pores has a diameter of 10 to 40", and desirably has a diameter of 2 〇 to 3 〇 #_, which has a porosity of 6 G to 9 _ (a ratio of pore volume to the total volume of the holder), and desirably has 70 ～90% porosity. The porous material satisfying this condition can be a stomata with an average diameter of 25 (four) and a porosity of 83%. The structure of the sheep is excellent in flexibility and elasticity, and has a wicking liquid. The material of the ability and liquid retention ability is commercialized. In the present invention, the support of the porous material retaining body into the upper curved needle bar is shaped as shown in the figure, and is supported by a thin plate along the enamel. The plate is 3° square 弋 |, ,: the bottom plate, the side plate and the top plate of the clothes machine table 2 are arranged, and are arranged on the support 3 ^, the bracket 3 1 near the upper end portion, and the tired 5 to the sewing machine 2 The installation of the inner wall is completed. The upper curved needle bar of the pull-type action installed in this way is located at the upper side of the needle bar W in the aforementioned direction, and the lower side of the bending guide 13 As shown in Figure 1, the bit

2098-9003-PF 200819585 The outer peripheral surface of the upper looper needle bar 1 in the upper operating position is in contact. Further, the lower end portion of the holding body 3 along the bottom plate of the sewing machine table 2 extends in the lower position of the upper looper needle bar to the inside of the lubricant reservoir portion 2 provided such that a part of the bottom plate is concave. In the holding body 3, the lubricant is previously held by the wetting. The lubricant can be used as a widely used lubricant for a sewing machine. However, if a new type of lubricant for a sewing machine is to be used, it is preferable to use the applicant of the present application in Japanese Patent Publication No. 2007-99864 (japanese pa1; en1) : Applicati (10) calls the synthetic ester proposed in Laid-Open No. 2007-99864 (2007)) or a mixture of this synthetic ester and lubricating oil. The lubricant used in the present invention is a combination of a plurality of synthetic esters, and the Consistency is the NLGKNational, preferably having a temperature of No. 1 to 〇 〇 2 5 C, and is viscous.

Grade2-GradeOO〇 (Definded by Lubricating Grease Institute), the viscosity of the crucible, the melting point (Meitingp〇int) is 7 〇 it ~ 15 〇. Oh, ideally it has a melting point of 9 0 C~11 5 °C. The lubricant using this synthetic ester is semi-solid at room temperature, on the assumption

2098-9003-PF 11 200819585 The synthetic ester and the lubricant for the sewing machine are well mixed, so that a synthetic lubricant of synthetic vinegar and lubricating oil can be used. After mixing: Start = turn after the effect of the lubricant can be produced under the transition temperature condition that the internal temperature of the sewing machine table 2 reaches the liquefaction temperature of the synthetic vinegar. As shown in Fig. 1, the upper end portion of the holding body 3 is placed in contact with the outer peripheral surface of the looper needle bar 1 after the upper movement. The synthetic ester or lubricating oil after liquefaction of 扪π, which is held by the holding body 3, is supplied to the upper looper needle bar which is in contact with the holding body 3! The support portion that is sounded by the f-needle guide (10) on the outer peripheral surface serves to lubricate the support portion. The retaining body 3 using a porous material has a high liquid retaining ability and can be wetted to retain a large amount of lubricant, so that the upper looper needle bar 1 is only lubricated by the supplied lubricant only when it is in contact with the holding body 3. . On the upper side of the tip end portion of the looper crank 22, a pressing protrusion 24 is provided, and as shown in Fig. 1, when the upper looper needle bar i is in the upper operating position, the upper end of the holding body 3 is pressed. The material of the part is pressed out by the holding body 3 «(4), and the pressure can be applied to the upper looper needle rod, and the lubricant can be bent under better conditions. Lubrication of the needle bar 1. The lubricant that is supplied to the support portion of the upper looper needle i is cooled to the bottom surface of the sewing machine 2 after the lubrication of the force ten needles is pressed == the storage portion 23 is positioned below the holding body 3 Side_, using a plurality of (10) m has a six-degree liquid absorbing ability, so that the moisturizing agent/moon agent falling to the storage portion 23 is absorbed by the holding body 3, and is guided to the upper portion through the holding body 3, and is a slide-up needle. 1 is recycled. / 2〇98-90〇3-pp 200819585 A pressing protrusion 25 is also provided on the lower side of the tip end portion of the looper crank 22, and the pressing protrusion 25 is as shown in Fig. 2, when the upper looper needle bar is located at the lower side When the position is pressed, the vicinity of the lower end portion of the holding body 3 is pressed to be elastically deformed, and the lubricant held by the holding body 3 is pushed out on the other side. The holding body 3 is elastically restored by the release of the pressing of the pressing projections 25, and at this time, the lubricant in the storage portion 23 is absorbed. The above lubrication is achieved by circulating the lubricant which is previously held by the porous material holding body 3, and the upper looper needle bar! The support portion can be well lubricated for a long period of time - so that the action speed of the upper needle bar can be reduced. At this time, the amount of the lubricant to be recycled is small, so that the inside of the sewing machine 2 as the outer casing can be kept in a dry state:: 'The simplification of the sewing machine for preventing leakage of the lubricant can be simplified. The sealed field of the machine 2 is placed in the f-ring j 6 of the needle guide j 3 to adhere thereto while retaining the lubricant supplied to the support portion, with correction =

The second 16_ hole shell material is achieved by %, but the porous material is not suitable for the frictional force of the frictional force. This ^ :=? Pair: The pressing force applied to the surface has a high resistance problem. Pressing the large squat will not cause any lever 1 to be pressed repeatedly. The sealing ring 17 of the crucible 13 is slid down and attached to the upper bend (4). When the synthetic: or ?1: agent is achieved, the mixture is exposed to the outside and the mixture of the sputum and the lubricating oil is used as a lubricant. 9〇〇3~pf 13 200819585 When used, 'this lubricant is as described above, even if it is not swept by the seal ring 17 at normal temperature, it is sent to the outside;;, =, to, around, almost no sewing Q, , f # # f 3 scatter to worry. (Some 3, and 4, which are the problems of the sewing machine and the deterioration of the work environment, the embodiment of the present invention is shown. The lubrication structure of the needle bar in Figs. 3 and 4 is the same as the lubrication structure of the sewing machine. 2, it shows that 4 in the figure used to lubricate the sewing machine is a needle bar, and 5 in the figure is a sewing machine as a casing. The sewing machine rocker arm 5 has an inner side surrounded by a top plate, a bottom plate and front and rear side plates. On the bottom plate of the rocker arm 5 of the sewing machine, the front part (the right part in the figure) is passed in the inner and outer directions I, and the bushing (Lc) wer Bush) 5G is set. The upper bush 51 is fixed in the inner and outer directions of the sewing machine rocker arm $= top plate through the lower bushing 5〇 to the coaxial position. The needle bar 4 penetrates the lower bushing 5〇 and the upper bushing 51 and is supported to be slidable in the axial direction. The lower end of the needle bar 4 protrudes to the lower side of the rocker arm 5 of the sewing machine through the lower bushing 5', at which the needle body 41 is attached through the needle holder 4''. In the middle of the needle bar 4, there is a Needle Bar Connecting Bracket 42 in the mouth. The needle cup holder 42 is fixed to the tip end of the needle bar crank 53 of the needle bar drive shaft 52 by a link to the base in the inner hole of the swing arm 5 of the sewing machine. The needle bar drive shaft 52 is a rotary shaft that repeatedly rotates in a predetermined angular range by a drive from a spindle (not shown). The needle bar crank 53 whose base end is fixed to the needle bar drive shaft 52 operates as a rocker arm that swings in the vertical direction as the needle bar drive shaft 52 rotates in the reverse direction. Fig. 3 shows a state in which the needle bar crank 53 is rocked in the upper position, and the fourth chart 2098-9003-PF 14 200819585 shows a state in which the needle bar crank 53 is rocked in the lower position. Through the link, the needle bar 4 connected to the tip end of the needle bar crank 53 is slid in the axial direction by the lower bushing 50 and the upper bushing 51 as the needle bar crank 53 is rocked, and is mounted on the needle bar 4 The needle body 41 at the lower end is repeatedly moved up and down between the upper position as shown in Fig. 3 and the lower position shown in Fig. 4. In order to lubricate the support portion of the needle bar 4, the sewing machine for the 4 outer casing is shaken. The holding body 3 is disposed in the inner working hole of the arm ^. The holding body 3 is a luminescent material plate similar to the second embodiment, and is shaped by a thin plate supporting plate, as shown in FIG. 3 and FIG. , , , , #μ丄, ', / σ, the bottom plate of the sewing machine rocker arm 5, the rear side plate and the inner surface of the top plate are arranged, and the brackets 31, 32 are provided near the lower end portion of the support plate 30. The upper wall of the holder 3 is attached to the inner wall of the sewing machine 2 to be mounted. The upper and lower ends of the holder 3 mounted in the manner of 4 are extended toward the action 卩e 乍 region of the needle bar 4 which operates in the aforementioned manner, and the upper end is located on the upper lining. The lower end portion of the support portion of the needle bar 4 of the 51 needle guide is located below the τ ancient P, and the lower end portion is located at the needle bar 4 guided by the lower bushing 50. Above the support portion. On the bottom surface of the hitting machine b of the swing arm 5 of the sewing machine 5, the storage portion 55 of the lubricant is provided in the lower bushing 5. (4) The concave side of the holding body 3 phase_the lower side of the porous body 3 The end portion is overlapped with a portion of the body 33 and the auxiliary holding body 33, and the auxiliary holding portion. The smear-adsorbing sheet 34 is hung on the inner holding body 3 of the storage portion 55 (including an auxiliary sputum-preventing agent. This lubricant is suitable for illusion; "the pre-infiltration maintains the same level of lubrication, the user and the sewing machine When the σ of the machine oil is applied in the S or E-ester form, it can be easily: the lubricant is liquefied by heating and the immersion of the party to the holding body 3 is maintained.

2098-9003-PP 15 200819585 It liquefies under the temperature conditions at the time of operation of the sewing machine and acts as a lubricant. The lubricating oil mixed to the synthetic vinegar acts as an auxiliary lubricant before reaching the liquefaction temperature of the synthetic ester. The upper end portion of the staying body 3 is located below the upper side support portion of the needle=guided by the upper bushing 51 as described above. In the upper portion of the tip end of the needle bar crank, a pressing force is provided 56'. This pressing protrusion 56 is as shown in Fig. 3, and when the needle bar crank μ is in the dead position, the vicinity of the upper end portion of the holding body 3 is pressed. The lubricant (the synthetic ester or the lubricating oil after liquefaction) held by the holding member 3 is pressed out and supplied to the upper support portion of the needle bar 4. The lower end portion of the holding body 3 is located above the lower side support portion of the needle holder 4 guided by the lower bushing as described above. In the lower part of the link 54 connecting the needle bar crank ^ and the needle bar connecting the strong 42, there is a subsequent 57, the pressing protrusion 57: No. 4, when the needle bar crank 53 is in the lower position, (4) : Near the side end. By this dusting, the holding body 3 is pressed and supplied to the lower support portion of the needle bar 4. The supply of such a lubricant is repeated by the up and down movement of the needle bar 4 at a high speed. The porous material holding body 3 has a high liquid holding ability's ability to infiltrate and retain a large amount of lubricant, so that the upper and lower support portions of the needle bar 4 can be made good for a long time, so that the needle bar can be made at a high speed. Chemical. Thus, the lubricant for lubricating the upper and lower support portions of the needle bar 4 rests on the reservoir portion 55 on the bottom surface of the rocker arm 5 of the sewing machine. In this storage portion 55, the adsorption sheet 34 is provided with the two holding bodies 33. The porous material adsorbing sheet has a high liquid absorbing ability, so that the lubricant after falling to the storage portion 55 passes through 2098-9003-PF 16 200819585. The suction piece 34 is absorbed by the auxiliary holding body 33, returns to the holding body 3 superposed on the auxiliary boat 33, and is used again for lubrication of the upper and lower support portions of the needle bar 4. The above-described lubrication is realized by preliminarily infiltrating the lubricant held in the porous material holding body 3 in the same manner as in the first embodiment. Therefore, the inside of the sewing machine which is used as the outer bite can be kept dry and simplified. A sealing construction used to prevent lubricant leakage. When a synthetic vinegar or a mixed body of synthetic vinegar and lubricating oil is used as a full-slip agent, the lubricant is semi-solid at normal temperature, so that even if it leaks to the outside, it does not scatter to the surroundings, and hardly causes sewing. Doubts about problems such as fouling and deterioration of the working environment. Fig. 6 shows the third and second structures of the lubricating structure of the sewing machine of the present invention. The figure 6 shows the left side of the needle bar for lubricating the stretch sewing machine. Figure 6 shows the front view. In the figure, 6 is a needle bar, and 7 is the material: the tip end of the sewing arm 7 is provided with a needle cup from the top plate, the bottom plate and the front plate to the 7a. The support structure of the needle bar 6 of the stretch sewing machine and the support structure of the needle bar 4 in the lock stitching machine not shown in Fig. 3 are set in the needle bar room ~ 矻Ώ 订 订 6 6 6 6 6 6 6 Lower bushing 7. The upper bushing 71 is supported by being slidable in the axial direction. The lower end of the needle bar 7 protrudes through the lower bushing 7 至 to the sewing machine rocker arm 峨 = == This 捍 捍 joint 62 is at the apex of the needle shank 73 of the 捍 ( (4) . The moving shaft 72 is provided by a main shaft of a sewing machine not shown.

2098-9003 - PF 17 200819585, a rotating shaft that rotates in a single direction. The needle bar 6 coupled to the needle bar boat shaft 72 via the needle bar crank 73 and the key ring μ is guided by the lower bushing 7〇 and the upper cover (4) to slide in the axial direction, and is mounted on the lower end of the needle bar 6 The needle body 61 has a stroke having a length equivalent to twice the arm length of the needle bar crank 73, and moves up and down between the upper position shown in Fig. 5 and the lower position shown in Fig. 6. In order to lubricate the support portion of the needle bar 7, in the inside of the needle bar chamber 7 & as shown, the holding bodies 3a, 3b, 3ce are arranged as the holding body %汍k and the i-th embodiment and the second embodiment. The porous material sheet having the same holding body 3 in the form. The first holding body 3a is entirely laid on the bottom plate of the needle bar chamber. The second holding and the third holding bodies 3b, 3c are arranged to overlap each other in the position on the front side of the upper portion of the needle bar 6 which is close to the inside of the needle bar chamber 7a as shown in Figs. 5 and 6. The third holding body 3c, which is overlapped to the outside, is integrally formed as shown in Fig. 5, and includes an adsorption sheet 3d which is extended to the lower side along the front plate of the needle bar chamber 7& and bent to the rear side on the bottom plate. The tip end of the suction piece 3d passes through the vicinity of the support portion of the needle bar 6 guided by the lower bushing 7b, and is in contact with the first cover on the bottom plate. Between the inner and outer heavy second holding body and the third holding body 3b, 3c, a consuming oil & 35 is inserted, and the oil core 35 is wound back to the jig disposed under the upper casing Η 75, the inner side of the jig 75 is in sliding contact with the outer peripheral surface of the needle bar 6. In this type of brother-to-three-hold holder 3a, 讥, 托, pre-infiltrate and retain the lubricant. The lubricant is the same as in the first embodiment and the second embodiment, and it is preferable to use a synthetic or synthetic product and a mixture of the lubricating oil for the sewing machine. This lubrication

2098-9003-PF 18 200819585

The agent is held by the immersion of the retaining body 3 by the gt which is liquefied by heating. Synthetic vinegar is liquefied under the sewing machine = as a lubricant to reach the liquefaction of synthetic vinegar. 2:::: The lubricated lubricating oil acts as an auxiliary lubricant for liquefaction and enthalpy. The second holding body and the third holding bodies 3b, 3c are located in the vicinity of the upper support portion of the needle bar 6 of the upper jacket 71, and the lubricant wet oil retained by the second holding body and the third holding body 3 b, 3c (d) and being introduced into the needle bar 6,

The outer peripheral surface is used to lubricate the support. The second holding body of the porous material and the third holding body 37 have a high liquid holding capacity and can be infiltrated to retain a large amount of lubricant. Therefore, the side support portion of the needle bar 6 can be introduced by the oil core 35. The lubricant is well hydrated. The liquid holding capacity of the felted oil core 35 is lower than that of the holding body 3b, but the arrangement positions of the first holding body and the second holding body 3b, 3c are close to the upper side supporting portion of the needle bar 6, and there is no fear of the support portion. The supply amount of the supplied lubricant is insufficient. The purpose of the supply amount of the lubricant may be to replace the felted oil core 35 with the same porous f material oil core as the second and third holding bodies 3b, 3e, however, the porous material The durability against the frictional force is low, so it is preferable not to use it in the sliding contact portion with the needle bar 6. Thus, the lubricant for lubricating the upper side support portion of the needle bar 6 falls to the bottom surface of the needle bar to 7a, and is absorbed by the first holding body disposed on the bottom surface. The first holding body 3a is in contact with the tip end of the adsorption sheet 3d, and is absorbed into the lubricant-wetting adsorption sheet 3d of the first holder 3& and is adsorbed by the second holder 3c provided with the base end of the adsorption sheet 3d at the same time to be circulated. use. The adsorption sheet 3d is made of a porous material having a high liquid absorbing ability, and does not hinder the third protection at a high position.

2098-9003-PF 200819585 Absorption of lubricant by holder 3c. Further, the "adsorption sheet 3 d passes through the position of the lower side support portion of the needle bar 6 guided by the lower bushing 70, and a part of the lubricant which wets the adsorption sheet 3d adheres to the outer peripheral surface of the needle bar δ to lubricate the lower side support. unit. Like the upper support portion, the oil anger that is observed is in sliding contact with the needle bar 6, and the oil core is in contact with the adsorption sheet 3d or the first holding body 3a, and the lubricant held by the adsorption sheet 3d or the first holding body passes through the above oil. The core is supplied to the needle bar 6. The above lubrication is the same as that of the first embodiment and the second embodiment, and the immersion is maintained by the lubrication of the porous material holding bodies 3a, 3b, and 3c, and the needle bar chamber 7a can be realized. The interior remains dry and simplifies the sealing construction used to prevent lubricant leakage. When a synthetic ester or a mixture of synthetic _ and lubricating oil is used as a lubricant, the sizing agent is semi-solid at normal temperature, so that money leaks to the outer month of the needle bar chamber & There are almost no problems such as fouling of the sewn product and computerized work environment. As can be seen from the above detailed description, in the slit structure of the first invention of the present invention, the pore ratio (, _) is relatively high, and the two pores are formed in parallel with each other, and the liquid or semi-solid coffee contact or The porous material retaining body of := causes the holding body to approach the outer casing of the sliding element as the lubricating object in contact with the crucible, so that it can be immersed by the holding body, and the door is accompanied by: directly or indirectly The lubricant maintained between the ^ is well lubricated. In the support structure of the support portion, the support portion is subjected to a t-mixture which is porous and is held in the second 209δ-90〇3-ρρ 20 200819585 material holder. Human 赤舻—^ σ成s s day or a ester and lubricating oil ^ " - 为 is semi-solid under the hoisting temperature, in the assumption of running & 鲦 solid and liquid = and produce lubrication: again, With a semi-nature nature, the bamboo shoots are produced by the combination of the state change and the combination of the maturity material retaining body, and the turbidity of the sliding element can be carried out. also! ΓRecycling' can achieve good semi-solids for a long time, so the synthetic hydrazine that is a lubricant is designed to leak to the outside.

,., will not cause the sewn products to be fouled, and the surrounding environment is sub-optimized. In addition, the sorcerer's brother, the scent of 4, before the temperature of the °: 5 of the lubricating oil in the synthesis of the liquefied operation - the period to achieve good lubrication performance. The lubricant is a mixture of 乂θ曰 and oil, and the lubricant is applied by infiltration under heating and liquefaction, 1ν π j can be achieved by holding the body again. # Only by attaching the holder to the inner casing of the outer casing, only good lubrication performance is obtained. 3 mechanism = part 2]: = in the lubrication structure of the sewing machine, The movable lubricant is supplied to the support portion which is stably supplied by the support body, so that the lubricating property can be ensured by the material. The embodiment described in the detailed description of the invention is an embodiment. The invention is not limited to the specific contents of the specific examples, and the invention is not limited to the specific scope of the invention. The invention may be modified in various ways to implement the invention. 2098-9003- Pp 21 200819585 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a first embodiment of a lubricating structure of a sewing machine according to the present invention. Fig. 2 is a view showing a first embodiment of a lubricating structure of a sewing machine according to the present invention. Lubricating structure representing the sewing machine of the present invention Fig. 4 is a view showing a second embodiment of the lubricating structure of the sewing machine of the present invention. Fig. 5 is a view showing a third embodiment of the lubricating structure of the sewing machine of the present invention. Third embodiment of the lubricating structure of the sewing machine of the invention. [Description of main component symbols] _ 1 needle bar 2 sewing machine table 3, 3 a, 3 b, 3 c holding body 3d adsorption sheet 4, 6 needle bar 5 ,7 sewing machine rocker arm 7a needle bar chamber 10 curved needle table 11 guide hole 2098-9003-PF 22 200819585 curved needle guide support hole upper loop felt ring seal ring opening _ curved needle drive shaft curved needle crank storage 25 Pressing protrusion support plate 32 Bracket holding body Adsorption piece Oil core pin Needle rod Needle rod connection seat Lower bushing Bushing Needle rod Drive shaft Needle rod Crank chain storage part

2098-9003-PF 23 200819585 56,57 Pressing protrusion 60-pin clamp 61-pin body 62-pin rod coupling 70 Lower bushing 71 Upper bushing 7 2-needle lever drive shaft 7 3-needle lever crank _ 7 4 chain 75 fixture

2098-9003-PF 24

Claims (1)

200819585 X. Patent application scope: It is characterized by: One part of the porous material holding body formed by ◊40 μm and the structure of the plurality of pores which are connected to each other is 90%, so that the porosity is 6 〇 _ _ close to the support portion and is fixedly disposed on the inner surface of the outer casing The lubricant that saturates the holding body is supplied to the support portion. 2. The lubricating structure of a sewing machine according to claim 1, wherein the lubricant is a synthetic ester or a mixture of a synthetic ester and an oil. 3. The lubricating structure of a sewing machine according to the second aspect of the invention, wherein the lubricant is applied to the holding body while being heated and liquefied, and is retained by the holding body. 4. The lubrication of the sewing machine according to any one of claims 1 to 3, wherein the holding body is disposed in an action area of the movable mechanism according to a need of a part of the movable mechanism. Inside. 2098-9003 -PF 25