TW486529B - Needle bar and sewing machine - Google Patents

Abstract

It is an object to provide a needle bar exhibiting light weight and great rigidity and a sliding apparatus for a sewing machine and a sewing machine each of which is capable of reliably preventing wear of a sliding portion and damage caused from seizure for a long time even with an oilless structure. A needle bar 1 has a needle bar body 2 made of fiber reinforced resin. At least a sliding surface 111a of a sliding member 11 is made of pitch carbon fiber reinforced resin. Thus, a sliding apparatus 60 for a sewing machine is manufactured. A sliding member 11 is employed in a sewing machine M.

Description

486529 A7

V. Description of the invention (D [Detailed description of the invention] [Technical category to which the invention belongs] The present invention relates to a sewing needle and a sliding device for a sewing machine for sewing machines with "« "YOU especially 1 kind of #light and high rigidity sewing needle , And the sliding surface of the sliding element of the cable is suitable for supporting sliding devices for sliding parts supported by the broken sliding surface of Yuandu and fork rungs, as well as those who use the sliding / threading machine. Known technology]-In general, the sewing needles of juvenile sewing machines (mainly industrial sewing machines) are located directly above the sewing products and are composed of upper shafts that move back and forth at high speed. Σ This kind of past That is, some needles include a needle body formed into a tubular shape, and a needle center fixedly mounted on the lower end of the needle body for assembling and disassembling the needle. 'The alignment of the needle is performed on the outer peripheral surface of the needle body. Positioning marks called engraved lines extending along the axis of the needle slightly perpendicularly intersecting. Also, the needle body and the needle bar of this type of needle are made of steel material = for the purpose of recording and abrasion. Surface treatment of mineral layer and c / c coating, etc. Also, this kind of sewing needle is near the free end of the sewing arm of the sewing machine body, that is, the next pair of needle bearings (sliding bearings) arranged on the face. Supported, when sewing, the rotation of the upper shaft is transmitted to the needle by the reciprocating movement of the balance clock, needle crank, needle crank lever, and needle hold in the order of reciprocating motion. Also, during the sewing operation, the needle moves up and down. The fact that vibration occurs is known by A. On the sliding part of the needle and needle bearing, the

1. / 3IV (Please read the notes on the back before filling out this page) Order --------- line. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

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4ί I! ≫ Please read the notes on the back before filling out this page

Fifth description of the invention (3) Needle and needle gold eyebrows, are scattered on the sewing machine surface :: Lubricating oil supply (supply) of the part is implemented on the outer peripheral surface of the needle, and the lubricant of 2 is attached to the vertical movement Lubricants require high fluidity, so Γ oil is scattered to the inside of the face, and it is easy to sew needles and metal parts of needles; turbid lubricants with lower degrees, use low viscosity lubricating oil to control adhesion: == lubricating oil At the same time, the (supply amount) is related to the death of the stitches, and the amount of lubricating oil on the outer surface of the needles), and the problem that requires more time. That is, when the lubricating oil of the sliding part reaches the sliding part _ I is large, it is turbid, and when the A oil S of the lubricating oil of the sliding part is small, the sliding part is likely to maintain a stable function. Injured and unable to be used for a long time. The complex structure of supplying lubricating oil to the nr part will change the structure of the machine. At the same time, it will increase the number of components and assembly time, and increase the economic burden. In addition, in recent years, it is required that the sewing machine not be oiled, and it is proposed to not force oil from the outside. It is used in the high-speed operation of the sewing machine, which is not easy to cause abrasion and burn damage of sliding parts. Oil-treated PAN (polyacrylonitrile) -based carbon fiber reinforced resin seams_Using the sliding device 0 [Problem to be solved by the invention] However, the sewing needle system of the conventional sewing machine has a light-weight and vibration-absorbing aluminum When made of wood, the efficiency of sewing operations has increased in recent years and the speed of the sewing machine has increased. For example, if high-speed movement of a needle that makes the needle body reciprocate more than 5,000 times in one minute, the wear resistance will be changed. The paper size is in accordance with the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 486529 A7 V. Description of the invention (4) At the same time, the rigidity of the needle body formed by the aluminum material (rigidity value = section coefficient X Yang Modulus) is about 2357N · m, which is smaller than the rigid value of 3967N.m of the needle body formed of steel. Therefore, the needle can be flexed and the needle vibration cannot be prevented. There are problems such as poor knots, broken needles and broken needle tips, which make it impossible to maintain a good working environment and sewing quality. In addition, those who form the needle body of the conventional needle body with a steel material need an oil supply mechanism on the sewing machine, which will complicate the structure of the sewing machine, and at the same time, it will hinder the cost reduction of the sewing machine. In addition, when an oil supply mechanism is provided on the sewing machine, the lubricating oil scattered on the face of the sewing machine is adhered to the outer peripheral surface of the needle that moves up and down to supply lubricant (oil) to the sliding part between the needle and the needle bearing. Therefore, the lubricant scatters to the inside of the face and requires a high fluidity of the lubricant. Therefore, it is necessary to use a turbid oil with a low viscosity of 1 (W / S), and the lubricant is easy to self-sewing and sewing needles. The sliding part of the bearing is leaking, and the use of low viscosity oil makes the amount of lubricating oil (oil supply) attached to the outer surface of the needle difficult to control and requires a lot of time. If the supply of turbid oil in the sliding part is set too much, there will be lubricant leakage from the sliding part of the needle bearing located below the face and the needle to the outside of the sewing machine body, which will contaminate the sewing product, and vice versa ' When the amount of turbid oil supplied to the sliding parts of the needles and needles is small, the needles and needle bearings are liable to burn or make any of the needles and needle bearings wear-out and cannot grow. Problems in maintaining bearing function during the period 297 mm) Paper size _ t Guanjiashen (CNS) A4 specification (21f 7-486529 Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

(Please read the precautions on the back before filling this page) A7 ------ ^ ~ ____ V. Description of the invention (5) To this end, it is expected to have a light and high rigid needle and it can be held by this needle Good working environment and the appearance of sewing machine. In addition, when abrasion-resistant resin is used as a conventional sliding device for a sewing machine, the wear resistance of the abrasion-resistant resin is insufficient for a sliding device for a sewing machine, so it cannot be stabilized for a long period of time. The function must be used to lubricate the sliding part, and there is a problem that it is impossible to realize the oilless sewing machine. In addition, when the oil-containing PAN-based carbon fiber reinforced resin is used as a sliding device for a conventional sewing machine, since the content of lubricating oil is different for each element, a degreasing process is performed when it is combined with a substrate formed of metal. A part of the lubricating oil contained in it will flow out, and the oil content cannot be controlled correctly, and sometimes there is a problem that it cannot maintain a stable function for a long period of time. In addition, on a sliding device for a sewing machine using an oil-containing abrasion-resistant resin, when the oil-containing abrasion-resistant resin is exposed on the outer part of the sewing machine, for example, it is used for sewing needles and push rods. In some cases, the lubricating oil contained in the abrasion-resistant resin will ooze during sliding, and there is a problem that the sewing product may be contaminated. For this reason, there is a need for a sliding device for a sewing machine which is oil-free and can reliably prevent abrasion and burn damage to sliding parts for a long period of time, and a sewing machine using such a sliding device for a sewing machine. The present invention has been made in view of the foregoing problems, and its first object is to provide a sewing needle that is lightweight and highly rigid, and a sewing machine that can maintain a good working environment and sewing quality by using the above-mentioned needle, and a second object of the present invention is to provide A kind of oil-free and can reliably maintain the abrasion and burning of sliding parts for a long time. The paper size is applicable to China National Standard (CNS) A4 (210 X 297 public love). --- Line · 486529 A7

486529 A7 V. Description of the invention (7) A positioning mark for positioning the needles on the body is provided. λ, by adopting such a configuration, it is possible to easily align the stitches by assembling the stitches on the sewing machine with the positioning mark as a target. In addition, the feature of the needle of the present invention in item 5 of the scope of patent application is that in item 4 of the scope of patent application, the positioning mark is formed by fixing a visually-improving element having a good visibility on a concave portion recessed in the needle body. . The term "recessor" herein refers to a groove or a bottom hole selected from various shapes such as a section ν, a section quadrangle, and a section semicircle on the outer peripheral surface of the needle body, and the needle body is provided through the needle body. Through holes of various shapes on the outer peripheral surface are formed with recesses on the outer peripheral surface of the needle body. The recesses may be formed when the needle body is formed, or after the needle body is formed. In addition, the so-called visibility-improving element here is, for example, when the needle body is made of carbon fiber reinforced resin as the material, the needle body is formed in black, and for example, the color of the needle body is obviously noticeable because it is yellow or silver. Resins or coatings. In addition, by adopting such a configuration, the visibility of the positioning mark can be improved, so that the alignment operation when the sewing needle is assembled in the sewing machine can be easily and reliably performed, and the wear of the positioning mark can be prevented. In addition, the features of the sewing needle of the present invention related to item 6 of the patent application range are those in which the aforementioned positioning mark is printed and formed on the needle body. Therefore, by adopting such a configuration, it is possible to easily form a positioning mark that can perform the alignment of the stitches when assembled in a sewing machine. In addition, the features of the sewing machine of the present invention which is claimed in the scope of patent application No. 7 are that the needles are the ones described in any of the scope of claims 1 to 6 of the scope of patent application (please read the note on the back? Matters before filling this page) )

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

This paper size applies to China National Standard (CNS) A4 specifications (2) 0X 297 public love. 5. Description of the invention (8) Also, "hunting is made of these materials, when using the stitches traced in item i of the patent application scope. Because of the green 4 s, # sex and ^ ⑤ professional duties, it can ^ achieve the purpose of improving vibration control and preventing the needle from flexing, and choose the fruit can be long 环境 free operating environment and sewing _% — fruit for a long time Keep good ,,, 1 mouthful of mussels. In addition, when using the needles that are already included in the second or third scope of the patent application, the purpose of weight reduction and high rigidity can be easily achieved. Goko Valley can easily achieve the goal of improving vibration damping and preventing needle deflection. 2 ::: Increase the friction of the sliding part's financial wear and tear '. The result can be easily and reliably maintained for a long time. Γ environment and sewing quality, can also become cheap products. In addition, the position of the stitches can be easily aligned using: 凊 as described in any of items 4 to 6 of the patent scope. ^ Second ': The sewing machine of the present invention related to item 8 of the patent scope == is characterized in that at least the sliding surface of the sliding element is a point formed by a green carbon fiber surface ^ resin. In addition, by adopting such a structure, the sliding surface has a large abrasion resistance and self-lubricating property, so it is possible to confirm the wear of the sliding surface and the sliding surface of the sliding surface for a long time when oil is lubricated, and the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by Employee Consumer Cooperative

The characteristic of the sliding device for the sewing machine of the present invention in item No. 9 of the patent scope is that the fiber direction of the green carbon fiber reinforced resin cut into a sloping surface in the eighth aspect of the application for a full-time job is to arrange M in the sliding direction. 'By adopting this structure, it is not easy to peel the carbon fiber itself when it is cut along the sliding direction, so that the friction between the sliding surface and the sliding surface of the sliding surface can be reduced, and at the same time, high bending rigidity can be easily obtained, and Good processability is obtained.

This paper size applies to China National Standard (CNS) A4 (21〇 486529 A7

486529 A7 ---------- B7____ 5. Description of the invention (1〇) ^ --- (Please read the precautions on the back before filling in this page) It is formed into two layers adjacent to the sliding surface. The cyan-based carbon fiber-reinforced resin is used to arrange the fiber direction along the slightly sliding direction, and the layer away from the sliding surface is PAN-based carbon fiber-reinforced resin to arrange the fiber direction to slightly perpendicular to the sliding direction. Also, by adopting this structure, the sliding surface and the substrate are both lightweight and highly rigid, so the vibration damping property can be improved. At the same time, the fiber direction of the sliding surface and the layers of the substrate are alternately arranged at approximately 90 degrees, so It can prevent the reduction of strength caused by the same fiber direction, and can prevent the thermal deformation of the sliding element caused by the heat generated by the sliding resistance. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The sliding device for sewing machine of the present invention with the scope of patent application No. 14 is characterized in any one of the patent application scope Nos. 8 to u. On the surface of a substrate of a predetermined shape formed by PAN-based carbon fiber reinforced resin, at the same time, the base system is provided in multiple layers, and the fiber direction of each layer is such that the fiber direction of the layer adjacent to the asphalt-based carbon-reinforced fiber-reinforced resin forming the sliding surface and the sliding direction The fiber directions of the pitch-based carbon fiber reinforced resins intersect slightly perpendicularly and are arranged alternately at 90 degrees each. In addition, by adopting such a structure, the sliding surface and the substrate are light in weight and have high rigidity, which can improve vibration damping. At the same time, because the fiber directions of the sliding surface and the layers of the substrate are alternately arranged at 90 degrees, the fibers can be prevented. When the directions are the same, the strength decreases, and the thermal deformation of the sliding element formed by the heating of the sliding resistance can be prevented, and at the same time, the mechanical strength of the substrate can be easily improved. Also, the features of the sliding device for sewing machine of the present invention in the scope of patent application No. 15 are in any one of the scope of patent application Nos. 8 to 11, and its sliding surface is provided in a predetermined shape made of metal. The surface of the substrate. In addition, by adopting such a structure, since the substrate has excellent mechanical strength, the Chinese paper standard (CNS) A4 (210 X 297 mm) can be applied to this paper size 13 486529 A7 B7 V. Description of the invention (u) Gu Yi obtains sliding elements that require high strength. The sliding device for a sewing machine according to the present invention related to claim 16 is characterized in that the sliding surface in the request item 5 is a groove formed at the sliding surface forming portion of the base body, and pitch-based carbon fibers are wound in the groove. Formed by strengthening the resin. In addition, by adopting such a configuration, the sliding surface can be easily formed on the surface of the base body. Also, the feature of the sliding device for sewing machine of the present invention which is claimed in item 17 of the patent scope is that in any one of items 8 to 10 of the scope of patent application, the sliding surface is provided on a base body formed into a predetermined shape by a fiber-reinforced resin. The surface and the substrate are multilayers at the same time, and the fiber direction of each layer and the fiber direction of the layer adjacent to the pitch-based carbon fiber reinforced resin forming the sliding surface are slightly perpendicular to each other and are arranged alternately at 90 degrees. In addition, by adopting such a structure, since the fiber directions of the sliding surface and the layers of the substrate are alternately arranged at 90 degrees each, it is possible to prevent the strength from decreasing when the fiber directions are the same, and to prevent the formation of heat generated by the sliding resistance. The thermal deformation of the sliding element can easily achieve the purpose of improving the mechanical strength of the substrate at the same time, and a light-weight and high-strength sliding element can be obtained. The feature of the sliding device for the quilting machine of the present invention is also stated in item 18 of the patent scope. In item 11 of the scope of the patent application, the sliding surface is provided on the surface of a base body of a predetermined shape formed of a fiber-reinforced resin. It is multi-layered, and the fiber direction of each layer is such that the fiber direction of the layer adjacent to the asphalt-based carbon fiber reinforced resin forming the sliding surface is arranged at 90 degrees to each other along the sliding direction. Also, by adopting this structure, the fiber direction of the sliding surface and the layers of the substrate are arranged alternately at 90 degrees each, so the fiber direction can be prevented. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). ) (Please read the notes on the back before filling out this page) -------- Order --------- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 14 A7 A7 V. Ministry of Economic Affairs Printed by the Intellectual Property Bureau Staff Consumer Cooperative

Description of the invention (12) is the same when the strength is reduced, and the thermal deformation of the sliding resistance sliding element can be prevented. The purpose of the strength formed by _ ',,,, can be easily achieved by improving the mechanical properties of the substrate In order to be served, a high-strength sliding element is required. The feature of the invention related to the invention of item 19 of the scope of the patent of Γ is that the feature of the machine slide 4 is that any of the patent scope " to item 14 I 'the sliding element is a needle and the supporting element is a needle Supports needle metal parts that can be moved in the axial direction and the needle bar is made of copper-based alloy or alloy casting. In addition, by adopting the == surface, it is possible to easily obtain _ needle Xiao stitch gold ^ to constitute the best wear resistance. The 4th part of the attachment is light and non-oiled. == _ The related sliding device for the sewing machine of the present invention is characterized in that in any one of the items 8 to 14 of the scope of patent application, the sliding element is a pusher. The support element is a push rod metal piece that reciprocates the push rod in the axial direction, and the push rod metal piece is at least formed of a copper alloy. Moreover, by adopting such a structure, the best wear resistance without oiling on the sliding parts of the push rod and the metal parts of the push rod can be easily obtained. In addition, the feature of the sliding device for the sewing machine of the present invention related to the scope of patent application No. 21 is: any of the scope of the patent scope No. 8, 9, ι〇, 11, b, 16, 17, and 18 Among them, the sliding element is a rotating shaft capable of rotating motion, and the supporting element is a bearing metal piece supported on the rotating shaft freely, and at least the sliding surface of the bearing metal piece is formed by a copper alloy. In addition, by adopting such a structure, the wear and burning damage of the sliding surface of the sliding surface and the bearing surface of the bearing metal piece supporting the rotary shaft can be easily obtained without oil supply.

This paper measures the standard size of the family (X 297 mm) 15-486529 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

----------------- (Please read the notes on the back before filling out this page) A7-~-^-一 V. Description of the invention (13) A suitable combination. The feature of the sliding device for sewing machine of the present invention related to the 22nd patent application scope is that in any one of the 8, 8, 9, 10, η, ι5, 16, 17, and 18 patent application scopes, The sliding element is a rocking shaft capable of rocking motion, and the supporting element is a bearing metal piece that supports the rocking shaft to be rockable, and at least the sliding surface of the bearing metal piece is formed by a copper alloy. In addition, by adopting such a structure, the abrasion and burning damage of the sliding surface of the rocking shaft and the sliding part of the sliding surface of the bearing metal supporting the rocking shaft can be easily prevented for a long time without oil supply. The best combination. It is also stated that the sliding device for the initial sewing machine of the present invention related to the patent scope 苐 23 is characterized in that: in any one of the patent application scope No. 8 to n, the sliding element is an angular winder, and The supporting element is a sliding groove supporting an angular winder. In addition, by adopting such a structure, the abrasion and burning damage of the sliding surface of the angular winding device and the sliding portion of the sliding surface supporting the sliding groove of the angular winding device can be easily obtained for a long time without oil supply. Combination that does prevent. Moreover, the sliding device for a sewing machine of the present invention with the scope of the patent application No. 24 is characterized in that: in the scope of the patent application No. 23, the angle winder is formed into a rod shape or a tube shape with the fiber direction being the peripheral direction. It is formed by processing a material made of a green carbon fiber reinforced resin. In addition, by adopting such a structure, the patent application scope deduction can be easily obtained. In addition, the paper size of the sliding stitching machine for stitching machine of the present invention which is subject to the scope of patent application No. 25 applies the Chinese National Standard (CNS) A4 specification (210 297 mm) 16 A7 V. Description of the invention (14) B7 = : In any of the eighth to fourteenth of the patent scope of the Chinese patent, ::::: is the upper bending wheel holding device, and the supporting element is the upper bending wheel holding device. In addition, by adopting such a structure, it is possible to easily obtain the sliding surface of the upper bending wheel _ device and the sliding portion of the sliding surface that supports the upper bending wheel holding device as a metal piece. The combination of abrasion and burning damage can be reliably prevented for a long period of time without oil supply. A feature of the sliding device for a sewing machine of the present invention related to the 26th aspect of the patent application is that at least the sliding surface of the supporting element is formed of an asphalt-based carbon fiber reinforced resin. χ, by adopting such a structure, the sliding surface has large abrasion resistance and self-sliding property, so it can reliably prevent the wear and sliding of the sliding surface and the sliding portion of the sliding surface without oil supply for a long time. Burn damage. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Online Economics and applying for a patent scope 苐 27 related sliding device for sewing machine of the present invention is characterized by: in item 26 of the scope of patent application, used to form the sliding surface The fiber direction of the pitch-based carbon fiber reinforced resin is arranged slightly along the sliding direction. In addition, by adopting such a structure, the peeling of the carbon fiber itself, which generates a shearing force in the sliding direction, is unlikely to occur, so that the abrasion of the sliding portion of the sliding surface and the surface to be sliding can be reduced, and at the same time, a high level can be easily obtained. Bending rigidity, and good workability can be obtained. The feature of the sliding device for sewing machines of the present invention related to the 28th aspect of the patent application is that the carbon fiber in the pitch-based carbon fiber reinforced resin that forms the sliding surface in the 27th aspect of the patent application is in contact with the sliding surface in the sliding state. The ratio is more than 60%. In addition, by adopting such a structure, the abrasion of the sliding surface and the sliding surface of the sliding surface under the condition of no oil supply can be satisfied. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). 17 A7 A7 B7

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

And burning damage can be reliably prevented for a long time _ abrasion and self-lubricating. The feature of the sliding device for the sewing machine of the present invention related to the scope of the patent application No. 29 is that in the scope of the patent application No. 26, the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface is arranged to slide with Directions that intersect slightly perpendicularly. In addition, by adopting such a configuration, it is possible to reduce the temperature rise and the adhesion of abrasive powders at the beginning of use. In addition, the feature of the sliding device for sewing machines of the present invention related to the 30th aspect of the patent application is that the asphalt-based carbon fiber reinforced resin that forms the sliding surface in any of the 26th to 29th aspects of the patent application scope. After forming an asphalt-based carbon fiber-reinforced resin material on the surface of a molding auxiliary element formed of a fiber-reinforced resin, the molding auxiliary element is formed by removing the molding auxiliary element. In addition, by adopting such a structure, it is possible to easily obtain the sliding surface described in any one of the patent application scope items% to 29. In addition, the sliding device for sewing machines of the present invention in which the scope of patent application is No. 31 is characterized in that in any one of the scope of Patent Application Nos. 26 to 30, its sliding surface is provided on a cover made of metal. Those inside. In addition, by adopting such a structure, since the cover body has excellent mechanical strength, a support element requiring high strength can be easily obtained. The feature of the sliding device for sewing machines of the present invention related to the 32nd aspect of the patent application is that in the 31st aspect of the patent application scope, the sliding surface is provided on the inner surface of the reinforcing layer formed by the PAN carbon fiber reinforced resin. At the same time, the outer peripheral surface of the reinforcing layer is pressed into the inner surface of the casing, and the fiber direction of the PAN-based carbon fiber reinforced resin forming the reinforcing layer is along the direction of pressing into the casing. By adopting such a structure, PAN-based carbon fibers are used.

This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

--- (Please read the precautions on the back before filling this page) Order --------- Line 18 Description of the invention (16) The reinforcing layer formed by the resin has a large compressive strength and extensibility, and The fiber direction is arranged in the direction of pressing into the casing, so the resistance during pressing is relatively low. The features of the sliding device for sewing machines of the present invention in the scope of patent application No. 33 are in the scope of application patent Nos. In any one of the items, at least the sliding surface of the sliding element is formed of steel or aluminum with a hard anodized coating on the surface. In addition, by adopting such a structure, a sliding element made of steel can easily obtain a sliding element requiring high strength because it has good mechanical strength. X 'Sliding element made of aluminum with a hard anodized coating on the surface is lighter and has better mechanical strength. The domain is small, and sliding elements requiring vibration damping and high strength can be easily obtained. The feature of the sliding device for the sewing machine of the present invention is that the sliding element is a reciprocating shaft capable of reciprocating motion in any one of the 26th to 33rd patent scope. The components are those that support the reciprocating pumping to a reciprocating bearing metal piece. In addition, by adopting such a structure, the wear and burning damage of the sliding surface of Hao Fusha and the sliding surface of the bearing metal supporting the reciprocating shaft can be easily obtained without oil supply for a long period of time. The best combination. = ^ The feature of the sliding device for the seam of the present invention, which is called the patent, is that in any one of the scope of the patent application (1) to (1), it is: a rotary axis of rotary motion 'and the supporting element is to support the rotary axis into The rotating bearing metal parts q can easily obtain the wear and burn damage of the sliding surface of the rotating shaft and the sliding surface of the metal bearing supporting the rotating shaft without oil supply 486529 A7

486529 V. Description of Invention (Printed by Employee Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs

The fiber direction of the fibers of the W-reinforced resin is not particularly limited, so that the fiber direction of the fibers is along the axis direction of the needle body 2 on the outer peripheral side of the needle body 2A and along the inner peripheral surface side of the needle body 2 A. In the circumferential direction of the needle body 2a, the thermal deformation of the needle caused by the heat generated by the sliding resistance of the needle 1A and the sliding position of the needle bearing of the sewing machine at high speed can be prevented, which is very good. Examples of the resin used in the fiber-reinforced resin include thermosetting resins such as epoxy resins, phenol resins, and melamine resins. As the fiber-reinforced resin, an aromatic polyamide fiber-reinforced resin, a butterfly fiber-reinforced resin, or a combination of fiber fibers such as carbon fiber, aromatic polyamide fiber, and boron fiber can be used. When a hybrid fiber-reinforced resin containing carbon fibers is used, a structure in which the carbon fibers are inclined at the outer peripheral side can self-lubricate the outer peripheral surface of the needle body 2A, which is excellent. On the outer peripheral surface of the above-mentioned needle body 2A, a plurality of positioning marks 4A for performing the alignment of the needles 1A when assembled on a sewing machine are provided in this embodiment, and the positioning marks 4A extend parallel to each other. This positioning mark 48 intersects the length direction of the needle 1A perpendicularly, and as shown in FIG. 2, a slightly ¥ -shaped concave portion 5 called a score line or the like is formed on the outer peripheral surface of the needle body 2A and is formed on the needle body 2A. A part of the circumferential direction of the outer peripheral surface is, for example, about 1/4 of the circumference, and the recessed portion 5 is filled with a visibility-improving element 6 having excellent visibility. Since the visibility improving element 6 is formed as black in the needle body 2A, it is selected and used from various resins and paints exhibiting a color of kappa or silver. The surface of this visibility improving element 6 is formed as a recess with the needle body 2A (please read the precautions on the back before filling this page)

21 The printed clothing A7 of the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ---- 砬 Ⅴ. The Inventor (19) '~~ The outer peripheral surface is the same surface or formed into several concave surfaces. 'When the surface of the visibility improving element 6 is formed so as not to protrude from the outer peripheral surface of the stitches, it will not be worn out due to the abrasion of the positioning mark 4A. In addition, the number of the positioning marks 4A is not limited to four in this embodiment, and can be selected from any number of 2, 3, and 5 or more according to the design concept. Also, the recessed portion 5 of the positioning mark 4A may be provided when the needle body 2 is formed, or after the needle body 2 is formed, it may be processed and set with a knife or the like. The recess 5 is not limited to this embodiment. For example, from the various shapes such as a square cross-section and a semi-circular cross-section, various shapes provided with grooves or bottomed holes and penetrating the outer peripheral surface of the needle body 2 are selected. Any structure such as a through hole can be formed. The 'J' needle clip 3 includes a needle clip body 1 shown on the right side of FIG. 1 and a substantially cylindrical mounting portion 8 of the needle clip body 1 on the left side of FIG. 1. Further, the outer peripheral surface of the mounting portion 8 of the needle holder 3 is fitted into the inner peripheral surface of the right end portion of the needle body 2A, so that the needle holder 3 can be fixed to the needle body 2a. In addition, a needle mounting hole 9 is formed on a shaft center portion of a right end portion shown in the right side of the first side of the needle clamp body 7 as shown by a dotted line in FIG. According to the design concept, a bonding element formed of, for example, an epoxy-based adhesive may be used between the outer peripheral surface of the mounting portion 8 of the needle holder 3 and the inner peripheral surface of the needle body 2A. For the material of the aforementioned needle clamp 3, various resins, aluminum materials, magnesium materials, ceramics and the like, which contain the same fiber-reinforced resin as the needle body 2A, can be used. When using these materials, as shown in Figure 3 on the bottom of the pin mounting hole 9 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

Please read the precautions on the back before filling in this page) -------- Order --------- Line 1 22 Printed clothing A7 '—B7__ by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Description of the invention (2〇 广 ^ —- The metal sheet 14 supporting the head of the needle handle is inserted or the needle clip 3 is provided by insert molding or the like, or as shown in FIG. 4, by screwing the screw ... The front side of the part 8 faces the bottom of the needle mounting hole 9. The needle holder 3B supporting the head of the needle handle can be formed with the screw head Η at the front end, as shown in Figure 5, and formed by driving or inserting. A needle clip 3C provided with the bottomed cylindrical metal element 16 of the needle mounting hole 9 can prevent the abrasion of the needle and is very good. The needle clip 3 is fixed to the needle body 2A, which can be used for the needle The structure of the needle clip 3 after the outer peripheral surface of the main body 2A, or the needle clamp 3 is screwed from the outer or inner peripheral surface of the needle body, or a singular or plural number of screws, keys, tips, rivets (including filling Gap method) and other combination equipment, or the use of thin plate-like sheet metal and screws, or the needle body The end portion of 2A forms a singular or plural groove portion, and the groove portion is formed into the convex portion formed on the needle holder 3, or the needle holder 3 is called a combined holder like a needle holder. The end of the needle body 2 is inserted into the mounting hole provided with a groove in the axial direction on the needle holder 3 and screwed together to form a structure in which the space between the grooves is close to grasp the needle body 2A with the mounting hole, etc. You can choose from a variety of configurations according to the needs of the design concept. In addition, when the needle clip 3 is fixed to the needle body 2A, the adhesive may be used in combination with the foregoing configuration according to the design concept. Figure 6 And FIG. 7 is the second embodiment of the needle related to the present invention. On the outer peripheral surface of the needle body 2B of the needle 1B of this embodiment, the positioning mark 4A of the needle 1A of the first embodiment is provided. It is composed of different positioning marks 4B. That is, the positioning mark 4B of the sewing needle 1B of this embodiment is printed and formed on the outer peripheral surface of the sewing needle body 2B. The material of this positioning mark 4B applies the Chinese national standard (CNS) A4 Specifications (210 X 297 mm) (Please read first Note to fill out the back of this page)

23 486529

V. Description of the invention (21) There is no special restriction on the printing by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. This method uses the visibility-improving element 6 formed by the resin or coating of the aforementioned implementation type and uses screen printing. When printed on the outer peripheral surface of the needle body 2B, the visibility is improved, which is very good. Therefore, as shown in FIG. 7, the positioning mark 4B of this embodiment is protrudingly provided on the outer peripheral surface of the needle body 2B. Since the other configurations are the same as the slit # 1A of the aforementioned first embodiment, the description is omitted. Fig. 8 shows the third embodiment of the needle related to the present invention. The needle body 2C of the needle 1C of this embodiment includes a fiber-reinforced resin 2CA and an inner layer 2 CA covering the most. The two-layer structure of the outer layer 2CB is formed by a self-lubricating fiber-reinforced resin on the outer peripheral surface of the sliding portion. In addition, those who use fiber-reinforced resin in the inner layer 2CA can choose carbon fiber, aromatic polyamide fiber, single fiber, glass fiber and other fiber-reinforced resin according to the design concept and sewing machine specifications. That is, in the case where the needle 1C is local rigidity and impact resistance, for example, as the material of the inner layer 2CA of the needle body 2C, a fiber-reinforced resin containing an aromatic polyamide fiber can be used. As the fiber-reinforced resin used in the outer layer 2CB, although carbon fiber is exemplified, for example, pitch-based carbon fiber-reinforced resin using pitch-based carbon fiber or PAN-based carbon fiber-reinforced resin using PAN-based carbon fiber is used, but it is self-lubricating The reason is preferably that the pitch-based carbon fiber reinforced resin is used. In addition, the ratio of the thickness of the inner layer 2CA to the outer layer 2CB, the needle 1C, specifically the rigidity value of the needle body 2C (rigidity value = section coefficient X longitudinal elasticity) This paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the notes on the back before filling out this page) Order --------- line · 24 486529

Also, the needle body 2C of this embodiment type is a simple two-layer structure, and only the sliding part of the needle bearing is made of carbon fiber reinforced resin, so that a part of the needle body 2C axis direction can be The structure formed by the carbon fiber reinforced resin is not particularly limited to the structure of the two-layer structure of this embodiment. Also, although it is not disclosed in this figure, the positioning provided on the outer peripheral surface of the needle body 2 € is only indicated by a. It can be the positioning mark 4A shown in the first embodiment or the positioning mark 4B not in the second embodiment. In order to prevent the positioning marks from being worn away by the abrasion caused by the needle bearing, it is better to set the positioning marks 4A shown in the first embodiment. The other structures are the same as those of the needle of the first embodiment, so the description is omitted. Next, an embodiment of a sewing machine using the needle of this embodiment will be described. Fig. 9 is a front view showing the essential parts of an embodiment of a sewing machine according to the present invention using a sewing needle according to the present invention. In the sewing machine of this embodiment, at least the sliding portion of the needle body is a needle formed of a fiber-reinforced resin having self-lubricity. As shown in FIG. 9, inside the sewing machine arm portion 23 which is a part of the sewing machine body 22 of the sewing machine 21 of this embodiment, an upper shaft 24 is formed so that its shaft core is slightly parallel to a sewing machine (not shown). Way configuration. In the ninth figure of the upper shaft 24, the rear end shown on the right side of the upper shaft 24 is protruded from the outer side of the sewing machine body 22, and the rear end of the upper shaft 24 is protruded from the outer side of the sewing machine body 22. CNS) A4 specification (210 X 297) (Please read the precautions on the back before filling this page)

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 25

486529 5. Description of the invention (23) A pulley (not shown) is installed. In addition, the pulley transmits a driving force of a driving motor provided at a rear end portion of the sewing machine via a timing belt (same not shown), and the upper shaft 24 is formed to be rotatable and driven by the driving force of the driving motor. In the ninth figure of the sewing machine arm portion 23, the vicinity of the front end shown on the left is used as the face 25. Inside this face 25, the upper shaft 24 is formed on the front end shown on the left in FIG. 9. Location. The upper shaft 24 is rotatably supported via an upper shaft bearing (not shown) provided inside the sewing machine arm portion 23, and a balance weight is provided on the outer peripheral surface of the 刖 'portion of the upper shaft 24 26. A needle crank 27 is attached to the front end side shown in the left side of the ninth figure of the counterweight, and a base end portion shown in the upper part of the needle crank lever 28 shown in FIG. 9 is attached to the needle crank 27. A needle holder 29 is attached to the front end shown on the left side of the front end shown in FIG. 9 on the lower side of the needle crank lever 28 in FIG. 9, and the needle holder 29 is fixed to the needle holder 29. Type sewing needle 1 (Symbol 1 is the general name of the first embodiment of the sewing needle 1A, the second embodiment of the sewing needle 1B, and the third embodiment of the sewing needle 1C) 2 (the symbol 2 is the aforementioned first The needle body 2A of the implementation form, the needle body 2B of the second implementation form, and the needle body 2C of the third implementation form are collectively referred to as the central portion of the axis direction. Further, a balance (only a part of which is disclosed) 37 connected to a balance crank 36 supported on a balance support shaft 35 of the sewing machine body 22 is mounted on the needle crank 27. Inside the face 25 of the sewing machine arm portion 23, a pair of needle bearings 40 which can vertically move the needle body 2 of the aforementioned sewing needle 1 in the vertical direction and can be moved up and down in a reciprocating manner are provided. One of the upper sides of the upper and lower needle bearings 40 shown in the ninth figure is the metal part on the needle bar 40a. The paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297). (Please (Please read the notes on the back before filling in this page) -------- Order --------- Line Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Consumer Cooperative 26 486529 A7 B7 Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the employee consumer cooperative V. Description of the invention (24) 'The other part shown in the lower part of Figure 9 is that the lower end portion exposes the outer side of the face 25 of the sewing machine arm portion 23, that is, the outside of the sewing machine body 22 Metal part 40b under the needle. A desired needle 45 is attached to the needle holder 3 of the sewing needle 丨 as shown by an imaginary line in FIG. 9. In addition, the sewing machine 21 of this embodiment is not provided with a lubricating oil supply mechanism for forcibly supplying lubricating oil to the sliding portions of the needles 丨 and each of the needle bearings 40, and an oil supply amount adjustment mechanism for adjusting the supply amount of lubricating oil. Next, the effect of this embodiment in the aforementioned configuration will be described. According to this embodiment of the sewing needle 1, when the sewing machine 21 is assembled, the positioning mark 4 is used (symbol 4 is the positioning needle 4A of the first embodiment described above, the positioning mark 4A of the eighth embodiment and the second embodiment of the sewing needle iB. The general name of the mark 4B) is to set the needle 1 into the sewing machine 21, and the needle 丨 can be easily aligned. That is, the alignment of the sewing needle 1 can be easily performed by engaging the positioning mark 4 with respect to the lower end surface of the lower metal piece 40b of the needle. When the sewing needle 丨 is assembled in the sewing machine 2 j, the outer peripheral surface of the needle body 2 of the sewing needle 1 can be coated with lubricating oil. When the needle 1A of the first embodiment is used, the positioning mark 4A of the needle 1 a is formed by filling the visibility improving element 6 in the recess 5 formed on the needle body 2 and fixing it. Therefore, the visibility of the positioning mark 4A can be further improved. That is, the black needle body 2 ′ formed by using carbon fiber reinforced resin as a raw material, which is formed only with a cutter to form the recessed portion 5, is difficult to see due to the recessed portion 5, and has poor visibility, and thus cannot improve workability. In addition, the positioning mark 4A of the sewing needle 1A is formed by fixing a visibility improving element 6 with excellent visibility on the recessed portion 5 recessed on the needle body 2 so that it can be prevented from increasing as the use time of the sewing machine 21 increases. Positioning mark 4 A is stitched -------------------- Order --------- Thread (Please read the phonetic on the back? Matters before filling out this page )

27 A7

V. Description of the invention (25) The bearing 40 wears slowly and wears out. When using the needle 1B of the second embodiment, the needle 1B can be assembled into the sewing machine 21 with the positioning mark 4B as a target, and the needle 1B can be easily aligned, and the screen can be used to equalize the needle. Since the positioning mark 4B is formed by printing on the main body 2, the positioning mark 4B can be easily and inexpensively formed on the needle body 2. However, the positioning mark 4B formed by printing cannot prevent the needle bearing 40 from being worn out slowly with the increase of the use time of the sewing machine 21. However, since the position of the sewing needle 组装 assembled on the sewing machine 21 is generally not changed, it is practical. No problem. In addition, according to the embodiment of the sewing needle 1, the total weight of the sewing needle 1 can be about 9.3 g, which is about 44% lighter than the conventional sewing needle with a needle body formed by using a steel needle as a material. It is known that the weight of a needle provided with a needle body formed of aluminum is about 31%. Therefore, the sewing needle 1 according to this embodiment can easily achieve the purpose of weight reduction, and can better improve the vibration damping performance. In addition, the mechanical strength of the needle body 2 of the sewing needle 1 according to this embodiment, for example, the rigidity value (rigidity value = section coefficient of the longitudinal elastic modulus of the section) can be about 4241N · m, so it is more rigid than the needle body formed of steel. The value of 3967n · m and the rigidity of needle body made of aluminum is 2357N · m. It is also rich in friction resistance, abrasion resistance and impact resistance, and has self-lubricity. In addition, the sewing machine 21 of this embodiment transmits the revolving motion of the upper shaft 24 to the sewing needle through the reciprocating motion of the balance weight 26, the needle crank 27, the needle crank lever 28, and the needle holder 29 during sewing. Will support Chinese papers (CNS) A4 specifications (210 X 297 male f) for each paper size (please read the note on the back? Matters before filling this page) ------- Order ----- ----. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 28

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the needle i on the needle bearing 40 reciprocates at high speed in the vertical direction. At this time, the reaction force generated by the reciprocating motion of the needle 1 is applied to the metal piece 40a on the needle, the metal piece 40b on the needle, the needle crank lever 28, and the link scale 37. According to the sewing machine using the sewing needle 1 of this embodiment, the reaction force value of the metal parts on the needle bar can be reduced by 47% compared with the case of using a conventional steel material as a sewing needle with a needle body. Left and right, the metal part 40b under the needle bar can be reduced by about 36%, the needle crank lever 28 can be reduced by about 34%, and the connecting rod scale 37 can be reduced by about 20%. In addition, according to the sewing machine 21 using the sewing needle 1 of this embodiment, compared with a conventional sewing needle with a needle body formed of aluminum as a material, the reaction force value during use confirms that the metal part 40a on the needle is 20% by experiment. The degree, the metal part 40b under the needle is about 18%, the needle crank lever 28 is about 15%, and the connecting rod scale 37 is about 8%, which is confirmed by experiments. The so-called experimenter specifically analyzes the CAE by inputting the weight of the balance weight 26, the needle crank lever 28, the scale crank 36, the connecting rod scale 37, the metal part 40a on the needle bar, the metal part 40b under the needle bar, and the weight of the needle 1. The data of, shape and strength can be used to find the reaction force value of the maximum load applied to each component. From the experimental results of the reaction force value, it can be understood that the sewing machine 21 using the sewing needle 1 of this embodiment type is lighter and more rigid than the conventional sewing needle, so it is not easy to flex. The needle generated by the reciprocating motion of the sewing needle 1 The reaction force values of the metal part 40a ', the metal part 40b under the needle, the needle crank lever 28, and the connecting rod scale 37 are indeed reduced. In this way, according to the sewing machine 21 using the sewing needle 1 of this embodiment, the reaction force value can be reduced, so the sewing needle 1 and each sewing needle when the needle 1 reciprocates can be reduced. (Mm) (Please read the Zhuyin on the back? Matters before filling out this page)

29% 6529 A7

The sliding resistance (friction resistance) of the sliding portion of the bearing 40 can reduce the generation and heat generation of the abrasion powder generated by the abrasion of the ㈣ portion, and can improve the longevity of each component and improve the vibration damping performance. In addition, because the reaction force value can be reduced, the size of each needle bearing can be reduced, and as a result, the stomach of the sewing machine 21 can be miniaturized. That is, each needle bearing 4q can counteract the weight 3: of the sewing needle 1: the reaction force generated, and because of this embodiment of the sewing machine η, the needle bearing 40 printed by the staff consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is lightweight and can be used. It is sufficient to endure the reverse force of the needle i, so the needle bearing 40 can be miniaturized. In addition, according to the sewing machine using the sewing needle of the embodiment, the mechanical characteristics of the needle ^ such as elasticity and even rigidity are very large, so it can prevent the deflection of the needle 丨 caused by the reciprocating motion of the needle worker, and therefore can reliably prevent As a result of the vibration of the needle 45, it is possible to prevent the occurrence of noise, thread breakage, poor knots, broken needles, needle breakage, etc., and to maintain a good working environment and sewing quality. In addition, the vibration of the sewing machine 21 using the sewing needle 1 of this embodiment was confirmed by experiments, and was reduced by about 7.3% compared with the past. The so-called experimenter specifically analyzes the CAE by inputting the balance weight 26, the needle crank lever 28, the balance crank 36, the connecting rod balance 37, the metal part 40a on the needle bar, the metal part 40b on the needle bar, and The weight, shape, and strength of the needle 1 are used to determine the number of vibrations inherent to each element. In addition, according to the sewing machine 21 using the sewing needle 1 of the present embodiment, the sewing needle j is, in detail, at least the sewing needle body 2 formed of carbon fiber reinforced resin is self-lubricating. Therefore, the sliding position of the sewing needle 1 and each needle bearing 40 is maintained. No burning damage will occur in the state without oil supply, and it has a durability of more than 800 hours. Compared to using this type of sewing machine 21 of this implementation mode, if you use the Chinese standard (CNS) A4 specification (210 X 297 mm) in this paper size (please read the note on the back? Matters before filling this page) ) --- IIIII Order-— — — — 111-· 30 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

486529 V. Description of the invention (28) When the surface of the needle body formed of steel material with I head is coated with Nig electroplated surface, the durability time is 1/4 degree, and the needle made of conventional steel is used as the material. When wc / c-coated surface-treated needles are used, the durability time is about 1/2. That is, according to the sewing machine 21 using the sewing needle 1 of this embodiment, the operation of the good sewing needle 1 can be maintained for a long time without oil supply. In addition, according to the sewing machine using the sewing needle of this embodiment, since the oil supply mechanism is not required, the sliding part of the metal part 40b under the sewing needle and the sewing needle 1 does not leak lubricant to the outside of the sewing machine body 2 and pollute the sewing material. In the case of 'simultaneous construction, the number of components, the number of assembly processes, etc. can be reduced, so that the goal of low cost can be achieved. Furthermore, according to the sewing machine 21 of this embodiment, the sliding of the metal piece 40b under the needle and the needle 1 does not cause abrasion powder and thus does not stain the sewing product placed under the needle i. Therefore, the sewing machine 21 according to this embodiment can maintain a good working environment and sewing quality for a long period of time. In addition, when the needle body 2 of the needle 1 of the sewing machine 21 of this embodiment is coated with lubricating oil, the structure of the carbon fiber reinforced resin of the material of the needle body 2 has the function of retaining the lubricating oil, which can maintain a good operation for a long period of time. Environment and sewing quality. Also, in addition to the carbon fiber-reinforced resin in the stitches 1A of the first embodiment described above, it is also possible to use aromatic polyamide fiber-reinforced resin, boron fiber-reinforced resin, carbon fiber, aromatic polyamide fiber, and boron fiber. Fiber combination of fiber reinforced resin and other needle body 2A on the needle ja This paper size applies the Chinese National Standard (CNS) A4 specification (21 × 297 mm) (Please read the precautions on the back before filling this page)

31 486529

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

2. In this case, because the surface of the needle body 28 cannot be fully self-lubricated / monthly, the purpose of degreasing the needle bearing 40 of the sewing machine cannot be achieved. Therefore, it may be necessary to set a needle for the needle, as is known to the person. The oil supply mechanism of bearing 40, but because the needle 1A is light and has high rigidity, it can improve vibration damping and the durability of each element formed by the reduction of the reaction force value, and achieve the miniaturization and prevention of needle bearing 40 The noise caused by the vibration of the needle 45, thread breakage, poor knots, and broken needles and needles, etc., have the excellent effect of maintaining a good working environment and sewing quality for a long period of time. Next, an embodiment of the sewing machine according to the present invention using the sliding device for the sewing machine according to the present invention will be described. 10 to 12 are schematic diagrams of the first embodiment of the present invention using a sliding device for a sewing machine of the present invention. FIG. 10 is a front view of the main part, and FIG. 11 is a sliding device for a sewing machine. Partial cut-away front view of the main part 'FIG. 12 is an enlarged sectional view taken along line 12-12 of FIG. The sewing machine of this embodiment uses a sliding device for a sewing machine to make a movable reciprocating needle as a sliding element, and a sliding part supporting the needle to become a supporting element is a non-lubricated article, and the sliding surface of the needle It is made of pitch-based carbon fiber reinforced resin. As shown in FIG. 10, the inside of the sewing machine arm portion 52, which is a part of the sewing machine body 51 of the sewing machine M of this embodiment, has an upper shaft so that its shaft is slightly parallel to a sewing machine (not shown). Equipped. The upper shaft 54 is shown on the right in FIG. 10 at the rear end (not shown) on the right side of the sewing machine body 51 and is mounted on the rear end of the upper shaft 54 on the outer side of the sewing machine body 51. Pulley (not shown). Also, the belt pulley is a timing belt

This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 32 A7

486529 V. Description of the invention (3〇) The driving force of a driving motor arranged at the rear end of the sewing machine is conveyed by an intermediary (the same is not shown), and the upper shaft 54 is formed to be rotatable by the driving force of the driving motor. . Also, in the 10th view of the sewing machine arm 52, 刖% »near the left is shown as the face 55, and inside this face 55, the upper shaft 54 is formed on the left side of the 10th figure. Shows the position of the front end. A balance weight is arranged on the outer peripheral surface of the front end of the upper shaft 54. A needle crank 57 is mounted on the front end side of the counterweight 56 shown on the left side in FIG. 10, and the needle crank 57 is mounted with a base end portion shown in FIG. 10 above the needle crank lever 58. As shown in FIG. A needle holder 59 is attached to the front end shown in the left side of the front end shown in FIG. 10 of the needle crank lever 58 shown in FIG. 10, and a needle holder 59 is fixed to the needle holder 59. A part of the sliding device 60 for a sewing machine according to the present invention is a central portion of the needle 61 in the axial direction. Furthermore, a scale (only a part of which is disclosed) 64 connected to a scale crank 63 supported on a scale support shaft 62 of the initial sewing machine body 51 is mounted on the needle crank 57. Inside the face 55 of the arm 52 of the sewing machine, a pair of needle metal pieces 65 which can vertically move the needle 61 in the vertical direction and reciprocate upward and downward are provided with the needle metal piece 65 to form the present embodiment. Part of a sliding device 60 for a sewing machine. In addition, one of the upper and lower pairs of the needle metal parts 65 shown in the upper part of FIG. 10 becomes a metal part on the needle bar, and the other part shown in the lower part of FIG. 10 becomes a lower end portion to expose the sewing machine arm The outer side of the face portion 55 of the portion 52, that is, the metal part under the needle outside the sewing machine body 51. In addition, the sewing machine M of this embodiment is not equipped with the Chinese national standard (CNS) A4 specification (210 X 297 mm) for the paper size of the sewing machine (please read the precautions on the back before filling this page)- ------- Order --------- Line · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 33 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 486529 A7 _ ______ B7 V. Description of the invention ( 31) The lubricating oil supply mechanism for forcibly supplying the lubricating oil and the lubricating oil amount adjustment mechanism for adjusting the lubricating oil supply are performed by using the sliding portions of the sewing needle 61 of the sliding device 60 and the needle metal pieces 65. The stitches 61 and the needle metal members 65 constituting the slide device 60 for the sewing machine will be described in detail below. As shown in FIGS. 11 and 12, the sliding device 60 for the sewing machine M of the present embodiment has a movable needle 61 as a sliding element and a needle metal 65 as a supporting element supporting the needle 61. The sliding surface 61 a provided on the outer peripheral surface of the needle 61 is formed to be supported by the sliding surface 65 a provided on the inner peripheral surface of each of the needle metal pieces 65. The needle 61 according to this embodiment has a needle body 7 j as a base formed from a PAN (polyacrylonitrile) -based carbon fiber reinforced resin in a substantially cylindrical shape. The outer peripheral surface of the needle body 71 is covered with a sliding layer 72 formed of an asphalt-based carbon fiber reinforced resin. Most of the outer peripheral surface of the sliding layer 72 is supported by the sliding surface 65a formed on the inner peripheral surface of the needle 65. Of the sliding surface 61 &. In addition, the fiber direction of the PAN-based carbon fiber reinforced resin forming the needle body 71 is arranged in a direction slightly perpendicular to the sliding direction of the movement direction of the needle 61 as shown by two arrows in FIG. The fiber direction of the carbon fiber-reinforced resin is the sliding direction along the movement direction of the needle 61 as shown by the two arrows in FIG. That is, the sewing needle 61 constituting a part of the sliding device 60 for a sewing machine according to the embodiment is a sewing needle body including a base formed of a fluorene-based carbon fiber reinforced resin arranged in a direction where the fiber direction and the sliding direction intersect perpendicularly. The inner layer 73 of 71 is arranged in the sliding direction with the fiber direction (please read the precautions on the back before filling this page)

34

The two-layer laminated structure of the outer layer 74 and the sliding layer 72 formed of the stone-repellent fiber-reinforced resin. In other words, the sliding surface 61a of the needle 61 constituting a part of the sliding device 60 for the sewing machine of the present embodiment is provided by the PAN system. The carbon fiber-reinforced tree is formed on the surface of the inner layer 73 of the needle body 71 of the base body of a predetermined shape, and the fiber direction of the PAN-based carbon fiber-reinforced resin constituting the inner layer 73 intersects the sliding direction slightly perpendicularly. Also, when the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 61 a is arranged slightly along the sliding direction, the carbon fibers in the pitch-based carbon fiber reinforced resin forming the sliding surface 6 a are in a sliding state with the sliding surface 65 a. The contact ratio is 60% or more. It has abrasion and burning damage that can ensure the sliding part of the sliding surface 61a and the sliding surface 658 for a long time without oil supply. It has good wear resistance and self-lubricity. Here, the ratio of the sliding state of the carbon fiber to the contacted surface 65a means that the stone antifibers on the sliding surface 61a are arranged parallel to the axial direction of the sliding direction. It is meant to be mixed with a resin part without carbon fiber. In addition, since the sliding surface 61a and the sliding surface 65 & are relatively moved in each axis direction in the sliding state, a part of the fiber portion contacting the sliding surface 61a and the sliding surface 61 & are formed on the sliding surface 65a. The part of the resin part. At this time, when the ratio of the portion in contact with the fiber portion of the sliding surface 61a of the sliding surface 65a is small, no oil is supplied, and the sliding portion of the sliding surface 61a and the sliding surface 65a can be reliably prevented for a long period of time. Abrasion and burning damage of «Abrasion resistance and self-lubrication deteriorate. For this reason, the ratio of the contact portion of the fiber portion of the sliding surface 65a to the sliding surface 61a must be able to meet the requirements of no oil supply. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (please first Read the notes on the back and fill out this page) -------- Order --------- Line-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 35 System A7 V. Description of the invention (33) The wear resistance and self-lubricity of the sliding surface 61 a and the sliding surface 65 a to prevent wear and burn damage of sliding parts during a long period of time are required. In addition, the ratio of the portion in contact with the fiber portion of the sliding surface 65a to the sliding surface 61a is 50 / L > or more, preferably 60% or more, which can satisfy the requirement that the sliding surface 61a and the sliding surface can be reliably prevented for a long period without oil supply. The wear of the sliding part of the surface 65a and the abrasion resistance and self-lubricity of the burn damage are the most important. The ratio of the contact portion of the fiber portion of the sliding surface 6ia to the sliding surface 65a is confirmed by an endurance test of an oil-free sewing machine. In addition, as described later, the constituent of the sewing needle 61 is to arrange the fiber direction of the pitch-based carbon fiber resin that forms the sliding surface so as to intersect the sliding direction of the moving direction of the sewing needle 61 slightly perpendicularly. Further, a needle clip 66 to which a well-known needle 67 is attached is fixed to a lower end portion of one end portion of the sewing needle 61 as shown in FIG. 10 below. χ, by setting the positioning mark 4 at the aforementioned position by the stitch 61, the assembling operation can be performed more efficiently. In this embodiment, the metal needle piece 65 is formed in a slightly cylindrical shape, and most of the inner peripheral surface of the metal needle piece 65 is to support the sliding surface 61a of the needle ^ as a reciprocable sliding surface 65a. . This needle metal piece "in order to reduce the wear during sliding and have a good impact on the wear resistance, brass, high-strength brass, bronze, scale bronze, Ming bronze, mis-bronze alloys and Alloy castings, aluminum alloys and alloy castings for bearings, tungsten, zinc, and alloys and alloy castings containing lead as the main component. However, at least the sliding surface 65a is formed of a copper-based alloy or alloy casting. The abrasion resistance and durability when sliding under non-lubricated state are very good. This paper size applies to China National Standard (CNS) A4 (210 X 297). (Please read the precautions on the back before filling in this page )

36 486529

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economy Bit metal material is formed. The other components are the same as those of the conventional sewing machine, so detailed descriptions are omitted. Next, the effect of this embodiment on the aforementioned structure will be described. According to the sewing machine M of this embodiment, since the sliding surface 61 a of the needle 61 is formed of pitch-based carbon fiber reinforced resin, it has been proved by abrasion experiments to have good abrasion resistance. Here, the so-called abrasion experimenter uses a test piece formed of pitch-based carbon fiber-reinforced resin and PAN-based carbon fiber-reinforced resin formed in the same shape.

Pvmax0.92MPa.m / s, oil-free environment, and experimental conditions using C5191BH (JIS Η 3110) as the material of the competitor component that supports the component, etc., to obtain the amount of wear. Figure 13 reveals the results of abrasion. From the abrasion results, it can be seen that the pitch-based carbon fiber reinforced resin is about 1/3 of the abrasion amount of the PAN-based carbon fiber reinforced resin. The pitch-based carbon fiber reinforced resin has better abrasion resistance than the PAN-based carbon fiber reinforced resin. That is, since the sliding surface 61 a of the needle 61 according to the embodiment is formed of a pitch-based carbon fiber reinforced resin, it has superior wear resistance. In addition, according to this embodiment of the sewing machine, since the sliding surface 61a of the needle 61 is formed of asphalt-based carbon fiber reinforced resin, it is better to have a non-lubricated state through durability experiments based on the relationship between the heating temperature and time of the sliding portion. Durability.

-------- Order --------- Line · (Please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297) (Centi) 37 486529 A7 V. Description of the invention (35) Here, the so-called endurance test is to use the needles M of this embodiment type, the conventional needles made of PAN-based carbon fiber reinforced resin with oil treatment, and the conventional application. The needles made of steel lubricated with lubricating oil are respectively assembled in the same sewing machine without a forced oil supply mechanism, and the heating temperature of the sliding part when the sewing machine is driven under the same conditions at each time is obtained. The needle metal member 65 is an article using the embodiment. The experimental results are shown in Figure 14. From the experimental results, it can be known that the relationship between the heating temperature and time of the sliding part of the needle 61 (the product of the present invention described in FIG. 14) of this embodiment and the conventionally formed oil-treated pAN carbon fiber reinforced resin The stitches (depicted as conventional products in Figure 14) are almost the same, and it is confirmed that there is no problem with their durability and abrasion resistance. In addition, the relationship between the heating temperature and the sliding time of the sliding part of the needle 61 in this embodiment is better than that of a conventional needle formed by lubricating steel (described in FIG. 14 as the conventional product 2) to understand the heating temperature. It can be particularly reduced. In this way, according to this embodiment, the needle 61 of the sewing machine sliding device 60 of the sewing machine M has a large abrasion resistance and self-lubricating property because the sliding surface 61 of the needle 61 has a large abrasion resistance and self-lubrication, so it is possible to reliably prevent no oil supply for a long time Abrasion and burning damage on the sliding portion of the sliding surface 6u and the sliding surface 65a. In addition, according to this embodiment of the sewing machine M, the sewing needle 61 of the sliding device 60 for the sewing machine is arranged along the sliding direction in the fiber direction of the pitch-based carbon fiber reinforced resin of the sliding surface 61a, so the sliding surface of the sliding surface of the sewing needle 61 6 丄 When the shearing force is generated along the sliding direction, compared with the case where the fiber direction is arranged to intersect the sliding direction perpendicularly, the peeling of the carbon fiber itself is difficult to occur, so the sliding surface 61a and the sliding surface 65a can be reduced. Of the sliding part (please read the precautions on the back before filling out this page) -------- Order --------- Line _ Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economic Affairs 38 486529

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, that is, by arranging the fiber direction of the sliding surface 61a of the stitch 61 to be the same as the movement direction of the 2-needle 61, the purpose of improving wear resistance can be easily achieved. The needle 61 of the sliding device for the sewing machine M of the state of the sewing machine can prevent the inner diameter from being small. For example, the needle 61 of the kurtosis is inconvenient when it is formed only by the pitch-based carbon fiber reinforced resin. Specifically, the pitch-based carbon fiber is strengthened. If the resin is directly wound around a small-diameter core and the molding is not suitable due to the high elasticity of the fiber itself, it will become the needle body 7 of the inner layer 73! Its elasticity is higher than that of the asphalt-based carbon fiber reinforced resin. PAN-based carbon fiber-reinforced resin with low stretchability and large stretchability can be directly wound on the core of 彳 iM and the core. When the leached carbon-fiber-reinforced resin is wound around the outer periphery to perform molding, cracks can be reliably prevented. In addition, if the inner diameter of the needle 径 is large, for example, when the diameter is 6 mm or more, the needle 6? May be formed only by a bitumen-based carbon fiber reinforced resin. Also, according to this embodiment, the sewing needle 61 of the sliding device 60 for the sewing machine M of the sewing machine 61 is formed of a sliding layer 72 and a needle body 71 that form the sliding surface 61a. They are both lightweight and highly rigid. At the same time, since the fiber directions of the sliding layer 72 and the needle body 71 differ by slightly 90 degrees, the strength reduction caused when the fiber directions are in the same direction can be prevented, and the sliding portion of the sliding surface 61a and the sliding surface 65a can be prevented from sliding. Thermal deformation of the needle 61 caused by the heat generated by the impedance. Moreover, according to the embodiment of the sewing machine M, the sliding device 6 for sewing machine is provided with a sewing member 61 and a supporting member for supporting the sewing needle 61 so that

(Please read the notes on the back before filling out this page) n _ Order --------- line! This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

39 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 -------- __B7_ V. Description of the invention (37) The needle metal piece 65 reciprocating in the axial direction, and at least the sliding surface 65a of the needle metal piece 65 is caused by A copper-based alloy or alloy casting is formed, whereby the best wear resistance without oiling can be easily obtained on the sliding portion of the needle 61 and the needle metal 65. In this way, according to the sliding device 60 for the sewing machine M of the present embodiment, the sliding parts of the needle 61 and the needle metal 65 can easily obtain the best wear resistance and durability without oil supply. Therefore, according to this embodiment, the sewing machine M can easily realize the non-oiling of the sliding part of the needle 6m and the needle metal part 65, and at the same time, the sliding part of the needle 61 and the needle metal part 65 can easily obtain the best without oil. Abrasion resistance, and can maintain good operation of the needle 61 for a long time without oil supply. In addition, since the sewing machine M according to this embodiment does not need to be provided with an oil supply mechanism, the sliding portion of the self-needle metal piece 65 and the needle 61 does not leak lubricant to the outside of the sewing machine body 51 to contaminate the sewing material, and has a simple structure. In addition, the number of components and the assembly process can be reduced, so the price can be reduced. In addition, according to the sewing machine M of this embodiment, abrasion powder is hardly generated by the sliding movement of the needle metal member 65 and the needle 61, so that the sewing object placed under the needle 61 is not stained. FIG. 15 is a schematic diagram of a modified example of the sewing needle 61. As shown in FIG. 15, the needle 61α of the present embodiment has a needle body 71A formed of a carbon fiber reinforced resin as a base, and the needle body 71A includes a pitch-based carbon fiber reinforced resin in which the fiber side is formed.

----------- ¾ -------- Γ% First read the > i on the back and fill in this page) Order --------- line one 40 Α7 ----------- B7___ V. Description of the invention (38) The outer peripheral layer 71 Aa is arranged in a slightly sliding direction (shown by the two arrows in Fig. 11), and it is made of PAN-based carbon fiber reinforced resin. The fiber direction is arranged in two layers of the inner peripheral layer 71 Ab in a direction slightly orthogonal to the sliding direction. The outer peripheral surface of the needle body 71 is covered with a sliding layer 72A formed of an asphalt-based fiber-reinforced resin. Most of the outer peripheral surface of the sliding layer 72A is formed by the inner peripheral surface of the needle metal 65. The sliding surface 61aa supported by the sliding surface 65a (refer to FIG. 11 and FIG. 12). In addition, the fiber direction of the pitch-based carbon fiber-reinforced resin forming the sliding surface 61 aa in the present embodiment is arranged in a direction slightly orthogonal to the sliding direction of the moving direction of the needle 61 as shown by two arrows in FIG. 11. In other words, the stitches 61A of this embodiment have a three-layer structure made of carbon fiber reinforced resin as a whole. The outer peripheral layer 71Aa of the needle body 71A may be formed of a PAN-based carbon fiber reinforced resin. The fiber direction of the outer peripheral layer 71Aa of the needle body 71A is arranged to intersect slightly with the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding layer 72A. That is, when the fiber direction of the pitch-based carbon fiber-reinforced resin forming the sliding layer 72A is slightly along the sliding direction, the fiber direction of the outer peripheral layer 71 is arranged to intersect the sliding direction perpendicularly, and the sliding layer 72A is formed. When the fiber direction of the pitch-based carbon fiber reinforced resin is arranged to intersect the sliding direction slightly perpendicularly, the fiber direction of the outer peripheral layer 71 Aa may be arranged in the sliding direction. In this way, the needle 6 丨 A of this embodiment type can be used in addition to the sewing machine% using the needle 61 of the first embodiment and the sliding paper sheet standard for the sewing machine (CJNS) A4 specifications. (210 X 297 public shame) (Please read the notes on the back before filling this page)-------- Order --------- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 41 486529 A7 B7 V. Explanation of the invention (39) In addition to the same effect of the device 60, because the fiber direction of the asphalt surface carbon fiber reinforced resin which forms the sliding surface intersects the sliding direction slightly perpendicularly, it has been experimentally proven that according to its heating temperature and The relationship between time can be known to reduce the temperature rise at the beginning of use. The so-called experimenter here is a needle 6 i arranged along the sliding direction with the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 6ia. In this embodiment, the fiber direction of the pitch-based carbon fiber reinforced resin that forms the sliding surface of 61 cents is arranged so that the needle 61A that intersects with the sliding direction slightly perpendicularly is assembled into the same sewing machine without a forced oil supply mechanism. The relationship between the rising temperature and time of the sliding part when the sewing machine is driven under the same conditions. In addition, the needle metal 65 is an article using this embodiment. Figure 16 reveals the experimental results. From the experimental results, it can be known that Needle 61A (CRFP needle described as the outer 90 degree layer in Figure 16) has a lower heating temperature than that of the aforementioned needle 61 (CRFT needle described as the outer 0 degree layer in Figure 16) at the beginning of the sliding part. It has been confirmed. Also, the author of this embodiment of the needle 61A can reduce abrasion powder compared with the aforementioned needle 61. Also, the needle of this embodiment 61A forms a fiber of pitch-based carbon fiber reinforced resin of sliding surface 61 aa. The direction is arranged to intersect the sliding direction slightly perpendicularly. Therefore, in the sliding state, 100% of the fiber portion of the sliding surface 61 aa contacts the sliding surface 65a, which can effectively use the abrasion resistance of the asphalt-based carbon fiber reinforced resin. In this way, according to this embodiment, the needle 61A of the embodiment has a great wear resistance and self-lubrication because of the sliding surface 61aa of the needle 61A, which can reliably prevent the paper rule for a long period of time. Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 42 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Α7 „----- gi —__ V. Description of the invention (40) Abrasion and burning damage of the sliding surface 61aa and the sliding surface pinched by the sliding surface under the condition of no oil supply can reduce the temperature rise at the beginning of the use. And the abrasion powder adheres. In addition, the entire needle 61A of this embodiment has a three-wide structure, and each fiber direction is alternately arranged at 90 degrees, so it is easy to obtain a high bending rigidity. The structure of the needle body 71A having three or more layers can also make the entire needle 61A have four or more layers. At this time, if the ratio of the layer in the fiber direction is 60% or more of the total layer, the It is very good to obtain the bending rigidity required for use as a sewing needle. When the fiber direction of the innermost layer of the substrate is perpendicular to the axial direction, it can prevent cracks during manufacturing and can obtain good processability. Fig. 17 shows a second embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. The sewing machine of this embodiment is a sliding device for a sewing machine. The sliding part that moves as a sliding element and implements reciprocating movement, and the sliding part of the metal part of the pusher that supports the pusher as a supporting element is non-lubricated. The sliding surface of the pusher is formed by asphalt-based carbon fiber reinforced resin As shown in Fig. 17 ', the sliding device 60A for the sewing machine μα of the present embodiment includes a pusher 76 which is a movable sliding member and a pusher metal member 77 which supports the pusher 76 as a supporting member. Is formed so that the sliding surface 76a provided on the outer peripheral surface of the push rod 76 is supported by the sliding surface 77a provided on the inner peripheral surface of the push rod metal member 77. Moreover, the push rod 76 of this embodiment is the same as the aforementioned First implementation pattern

This paper size applies to China National Standard (CNS) A4 (21 × 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 486529 A7 —-------- B7____ V. Description of Invention (41) Needle 61 the same structure. That is, the push rod 76 of this embodiment type has a push rod body 78 which is formed into a substantially cylindrical shape from a PAN-based carbon fiber reinforced resin, and the outer peripheral surface of the push rod body 78 is reinforced with pitch-based carbon fibers. A sliding layer 72A formed of a resin is covered, and most of the outer peripheral surface of the sliding layer 72A becomes a sliding surface 76a supported on the inner peripheral surface of the push rod 77 and supported by the sliding surface 77a. In addition, the fiber direction of the 782pAN carbon fiber reinforced resin forming the push rod body is arranged perpendicularly to the sliding direction of the moving direction of the push rod 76 as shown by the two arrows in FIG. 17 to form a pitch-based carbon fiber reinforced resin of the sliding layer 72A. The fiber direction is arranged along the sliding direction of the moving direction of the push rod 76 as shown by the two arrows in FIG. 17. When the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 76a is arranged slightly along the sliding direction, the carbon fibers and the sliding state in the pitch-based carbon fiber reinforced resin forming the sliding surface 76a are the same as those of the sliding surface 61a of the stitch 61. It is important that the ratio of the contact of the sliding surface 77a is 60% or more. In this way, the pusher rod 76 constituting a part of the sliding device 60A for the sewing machine of the present embodiment is an inner layer of the pusher rod body 78 made of pAN-based stone antifiber reinforced resin whose fiber direction intersects the sliding direction perpendicularly. 7 3 A, a two-layer fiber laminated structure of an outer layer 74A composed of a sliding layer 72A formed of an asphalt-based carbon fiber reinforced resin arranged along a sliding direction with a fiber direction. Further, a pressing member 79 is fixed to a lower end portion shown in the lower part of Fig. 17 of one end portion of the push rod 76. In addition, the structure of the pusher rod 76 in this embodiment is the same as that of the needle 61 in the first embodiment. When the inner diameter of the pusher rod 76 is larger, for example, 6 mm or more, this paper size applies the Chinese National Standard (CNS) A4 standard. (210 X 297 mm) 丨 -------- tr --------- line ^^ · (Please read the precautions on the back before filling this page) 44

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the pusher 76 can be formed only with pitch-based carbon fiber reinforced resin. The structure of the pusher 76 is the same as that of the stitches M (Fig. Η) of the three-layer structure described above. The fiber that forms the sliding surface 76a and the carbon fiber-reinforced resin: the direction is arranged to slide with the movement direction of the pusher 76. The direction is slightly vertical.胄 This structure can achieve the same effect as the stitches 6ia described above. The push rod metal piece 77 of this embodiment is formed in a slightly cylindrical shape, and most of the inner peripheral surface of the push rod metal piece 77 is a quilt that supports the sliding surface 76a of the aforementioned push rod% to reciprocate. Sliding surface 77a. The meaning of this push rod metal piece 77 is to reduce the wear during sliding and have a good impact on wear resistance. Copper or aluminum or tin, zinc, lead-based alloys and alloy castings can be used alone or in combination. When the sliding surface 77a is formed of a copper alloy and an alloy casting, it is excellent in abrasion resistance and durability during sliding in a non-lubricated state. Also, at least a portion of the pusher metal member 77 forming the sliding surface 77a is formed of a copper alloy and an alloy cast, and other portions may be formed of a low-priced metal material. In addition, the sewing machine MA of this embodiment is not provided with a lubricating oil supply mechanism for forcibly supplying lubricating oil and adjusting the amount of lubricating oil, which are sliding parts of the pusher 76 and the pusher metal member 77 constituting the sliding device 60A for the sewing machine. Oil supply adjustment mechanism, etc. The other components are the same as those of the conventional sewing machine, so detailed explanations are omitted. The sewing machine MA and the sliding device 60A of the present embodiment configured as described above can reach the sewing machine M of the first embodiment and the size of the paper. The Chinese national standard (CNS) A4 specification (210 X 297 mm) is applicable. ) -------- tr --------- line ^ ® · (Please read the precautions on the back before filling this page) 45 A7

The mechanical sliding device 60 has the same effect. That is, it is easy to realize the non-oiling of the sliding parts of the push rod% and the push rod metal piece 77, and at the same time, the best wear resistance of the sliding parts of the push rod 76 and the push rod metal piece 77 without oil can be obtained: . In addition, it can maintain a good push operation for a long time in the state without oil supply. Figures 18 to 20 show the third embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. The sewing machine according to this embodiment is a reciprocating shaft that is a sliding device for sewing machines that is movable as a sliding element and reciprocates, and the sliding part of the bearing metal piece that supports the reciprocating shaft as a supporting element is non-lubricated. The to-be-slided surface of the bearing metal part is formed by pitch-based carbon fiber reinforced resin. As shown in FIG. 18, the sliding device 60B for the sewing machine mb of the present embodiment includes a reciprocating shaft 81 which is movable as a sliding element and a reciprocating shaft 81, and supports the reciprocating shaft 81 as a reciprocating motion. The bearing metal member 82 of the element is formed such that the sliding surface 81a provided on the outer peripheral surface of the reciprocating shaft 81 is supported by the sliding surface 82a provided on the inner peripheral surface of the bearing metal member 82. The bearing metal part 82 of the present embodiment is formed on the inner surface of the case 83 which is formed into a substantially cylindrical shape by a metal, and the adhesive layer 84 is integrally combined with a sliding layer 72B formed of an asphalt-based carbon fiber reinforced resin. The sliding layer A large part of the inner surface of 72B becomes the sliding surface 82a. Further, the fiber direction of the cyan-based carbon fiber reinforced resin forming the sliding layer 72B is arranged along the sliding direction of the reciprocating shaft 81 as shown by the two arrows in FIG. In addition, the size of the slipped paper will be adapted to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (please read the precautions on the back before filling this page), and install -------- order- -------- Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economics 46

486529 V. Description of the invention (44) When the fiber direction of the pitch-based carbon fiber reinforced resin on the moving surface 82a is arranged slightly along the sliding direction, it is the same as the sliding surface 61a of the stitch 61 described above, forming the asphalt-based carbon fiber reinforced resin on the sliding surface 82a The ratio of the carbon fiber in contact with the sliding surface 77a in the sliding state must be 60% or more. When the sliding layer 72B is wound around the core during the manufacture of the pitch-based carbon fiber-reinforced resin, if all the fiber directions are wound along the axis of the core, the pitch-based carbon-fiber-reinforced resin after molding will not be removed from the core. For example, as shown in FIG. 19, as shown by the dotted line in FIG. 19, the forming auxiliary member 85 formed of the fiber-reinforced resin is wound so that the fiber direction and the axis direction of the core intersect perpendicularly. The pitch-based carbon fiber-reinforced resin is wound and formed on the surface of this fiber-reinforced resin so that its fiber direction is in the axial direction of the core, and is then formed by removing the forming auxiliary element 85. The auxiliary member 85 for molding can be selected from various fiber-reinforced resins such as PAN-based carbon fiber-reinforced resin, glass fiber-reinforced resin, aromatic polyamide fiber-reinforced resin, and side fiber-reinforced resin. As shown in FIG. 20, the bearing metal part 82 is provided with a sliding layer 72B formed of a pitch-based carbon fiber reinforced resin on the inner surface of a reinforcing layer 88 formed of a pan-based carbon fiber reinforced resin. The inner surface of the case 83 formed into a substantially cylindrical shape with metal may be integrated to form the bearing metal 82A. At this time, the fiber direction of the resin of the PAN-based carbon fiber reinforced resin forming the reinforcing layer 88 is shown in the two arrows of FIG. 20 along the sliding direction of the reciprocating shaft 81 in the sliding direction, so that the resistance during pressing is reduced. good. In addition, the material of the reinforcing layer 88 is not particularly limited. It is better to use PAN-based carbon fiber reinforced resin in order to have high compressive strength and prevent damage during press-in. This paper applies Chinese National Standard (CNS) A4 specifications (210 X 297 mm) (Please read the notes on the back before filling out this page)

The structure of the bearing metal 82 is the same as that of the needle 61A (FIG. 15) of the three-layer structure described above, so that the fiber direction of the asphalt-based fiber-reinforced resin forming the sliding surface 82 & is moved with the reciprocating axis 8 丨. The sliding directions of the directions can intersect slightly perpendicularly. With this configuration, the same effects as those of the aforementioned needle 61A can be obtained. When the fiber direction of the pitch-based carbon fiber-reinforced resin forming the sliding surface 82 & is arranged to intersect slightly with the sliding direction of the reciprocating shaft 81, the pitch-based carbon fiber-reinforced resin is wound around the core at the time of manufacture. If all the fiber directions are wound in a direction perpendicular to the axial direction of the core, the pitch-based carbon fiber-reinforced resin can be easily pulled from the core after molding, so the processability is good. In addition, when the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 82a is arranged to be slightly perpendicular to the sliding direction of the reciprocating shaft 8 j, a reinforcing layer 88 may be provided, of course. Returning to FIG. 18, as described above, The reciprocating shaft 81 is formed into a substantially cylindrical shape similarly to a known person. Most of the outer peripheral surface of the reciprocating shaft 81 becomes a sliding surface 81 that can be reciprocated by the sliding surface 82a supported by the aforementioned bearing metal member 82. The reciprocating shaft 81 may be made of aluminum or steel with a hard anodized coating on the surface alone or in combination when considering the inertia relative to other components. In addition, the reciprocating shaft 81 may be formed of at least a portion where the to-be-slied surface 81a is formed by a hard surface anodized film or steel, and other portions may be formed of a low-priced metal material. Further, a specific applicable portion of the reciprocating shaft 81 of the sliding device 60B for a sewing machine may be, for example, a needle or a presser. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm). Please read the precautions on the back before filling out this page.} Order --------- Line 1 Ministry of Economy Intellectual Property Bureau employees Printed by the consumer cooperative 48 486529 A7 ---____ Β7 _ —__ V. Description of the invention (46) Moreover, the reciprocating shaft 81 and the bearing constituting the sliding device 60B for the sewing machine are not provided on the sewing machine MB of this embodiment. An oil supply mechanism for forcibly supplying lubricating oil to the sliding portion of the metal member 82 and an oil supply amount adjustment mechanism for adjusting the supply amount of the lubricating oil. The other structures are the same as those of the conventional sewing machine, so detailed descriptions are omitted. The sewing machine MB and the sliding device 60B for the sewing machine of the present embodiment configured as described above can achieve the same effects as the sewing machine µ and the sliding device 60 for the sewing machine of the first embodiment described above. That is, the non-oiling of the sliding parts of the reciprocating shaft 81 and the bearing metal member 82 can be easily achieved, and the best wear resistance of the sliding parts of the reciprocating shaft 81 and the bearing metal member 82 can be obtained at the same time. Moreover, it is possible to maintain a good operation of the reciprocating shaft 81 for a long time in a state where no oil is supplied. In more detail, the sliding device of the sewing machine MB of the present embodiment has a sliding surface 82a which has a large abrasion resistance and self-lubrication, and can reliably prevent the reciprocating shaft in the absence of oil for a long period of time. The sliding surface 81 of the 81 and the sliding part of the bearing surface 82a of the bearing metal 82 are abraded and burned. In addition, since the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 82a is arranged along the sliding direction, it is not easy to peel off the carbon fiber itself when shearing occurs in the sliding direction, so the sliding surface 8ia and the sliding surface 82a can be made. The wear on the sliding parts is minimized. In addition, since the case 83 has excellent mechanical strength, a support member requiring high strength can be easily obtained. Also, 'the reciprocating shaft 81 of the sliding element formed of steel has better mechanical strength', so it can easily obtain a sliding element which requires the strength of the south, and the surface is formed by applying hard anodized aluminum on the surface. The reciprocating axis of the sliding element The paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling out this page) 111111 I 1111111- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs System 49 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 Γ ---------_ V. Description of the invention (47) 81 Because it is light in weight and has better mechanical strength and less inertia, it can be easily obtained. Vibration damping and high strength sliding element. In addition, it is possible to achieve non-oiling of the sliding portion. 21 through 24 show a fourth embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. The sewing machine of this embodiment is a rotary shaft which is a sliding device for a sewing machine and which is movable as a sliding element to perform a rotary motion, and a sliding part of a bearing metal piece supporting the rotary shaft as a supporting element is non-lubricated. The sliding surface of the metal part is formed by pitch-based carbon fiber reinforced resin. As shown in FIG. 21, the sliding device 60C for a sewing machine of the present embodiment includes a rotary shaft 91 serving as a sliding element, such as an upper shaft 91A, a lower shaft 91B, and a vertical shaft 91C. The bearing metal 92 of the supporting member of the rotating shaft 91 includes, for example, an upper shaft metal piece 92A paired with the upper shaft 91A and a lower shaft metal piece 92B paired with the lower shaft 91B and a vertical shaft metal piece 92C paired with the vertical shaft 91C. The sliding surface 91 a provided on the outer peripheral surface of the rotary shaft 91 is supported by the sliding surface 92 a provided on the inner peripheral surface of the bearing metal member 92. As shown in FIG. 22, the rotary shaft 91 of this embodiment has a base body 94 formed of a predetermined shape with metal. The outer peripheral surface of the base body 94 is covered with a sliding layer 72C formed of an asphalt-based fiber reinforced resin. The sliding layer 72C is provided with a sliding layer 72C formed of a pitch-based carbon fiber reinforced resin on the surface thereof. A part of the outer peripheral surface of the sliding layer 72C becomes a sliding surface formed by the inner peripheral surface of the bearing metal 92 Sliding surface 91 & supported by 92a. In addition, the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding layer 72C is such that the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm)

-(Please read the notes on the back before filling this page) -------- Order --------- Line 1

50 486529 A7 B7 V. Description of the invention (48) The two arrows shown in Figure 22 are arranged along the sliding direction of the rotating direction of the rotating shaft 91. The sliding layer 72C may be provided on at least the sliding surface forming portion of the surface of the base body 94. When the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 91a is arranged slightly along the sliding direction, the carbon fiber in the pitch-based carbon fiber reinforced resin forming the sliding surface 91a is the same as the sliding surface 61a of the stitch 61 described above. The ratio of the lower contact with the sliding surface 92a must be 60% or more. The constituent of the aforementioned rotating shaft 91 may set the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 91 & to slightly intersect the sliding direction of the moving direction of the rotating shaft 9 丨. With this configuration, the same effect as that of the above-mentioned stitch 61A can be achieved. In addition, as shown in FIG. 23, the rotary shaft 91 has a groove 96 formed on the sliding surface forming portion 95 of the base body 94, and the groove 96 is wound with an asphalt-based carbon fiber reinforced resin to form a sliding layer 72C. Anyone with shaft 91 aa is also acceptable. With this configuration, the sliding surface 91a can be easily formed at the sliding surface forming portion 95 on the surface of the base body 94. As shown in FIG. 24, the rotating shaft 91 has a sliding surface 91a provided on the surface of a base 9A formed in a substantially cylindrical shape by a fiber-reinforced resin. At the same time, the base 9A is multilayered, for example, formed in two layers, and each layer The fiber direction is such that the fiber direction of the upper layer 94Aa of the surface layer adjacent to the pitch-based carbon fiber reinforced resin forming the sliding surface 91a is a direction perpendicular to the sliding direction as shown by the arrow in FIG. The rotation axis 91AB may be configured. That is, the rotation axis 91AB is above the base 94A of the sliding layer 72C, and the paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (Please read the note on the back first? Matters before filling this page) -------- Order --------- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 51 486529 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 V. Description of the invention (49) The fiber direction of 94Aa is perpendicular to the fiber direction of the pitch-based fiber-reinforced resin forming the sliding layer 72, and the fiber direction of the lower layer 94Ab of the inner layer 94A leaving the sliding layer 72C is the pitch-based fiber forming the sliding layer 72C. The fiber direction of the reinforcing resin is formed in the same direction. In other words, the fiber directions of the layers of the substrate 94A are alternately arranged at 90 degrees each, so that the fiber direction of the layer adjacent to the sliding layer 72C and the sliding direction become directions that intersect slightly perpendicularly. With this structure, since the base body 94A is light in weight and has good mechanical strength, it is possible to easily obtain a light-weight and high-strength sliding element. In addition, the number of layers forming the substrate 94A may be set according to the design concept. Further, the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 91a may be arranged to intersect slightly perpendicularly with respect to the sliding direction of the rotation axis 91, and the base body 94A may be composed of a fiber reinforced resin in multiple layers. At this time, the fiber direction of the layer of the base body 94 adjacent to the sliding layer 72C may be alternately arranged at 90 degrees along the sliding direction. When this structure is made, the fiber directions of the sliding surfaces 91a and the substrate 94A are alternately arranged at approximately 90 degrees, so that the strength can be prevented from decreasing when the fiber directions are the same, and it can also prevent the heating caused by the sliding resistance. The thermal deformation of the sliding element can also easily achieve the purpose of improving the mechanical strength of the base body 94A, so it is easy to obtain a sliding element that is lightweight and requires high strength. Returning to FIG. 21, the bearing metal member 92 of this embodiment is formed into a slightly cylindrical shape, and most of the inner peripheral surface of the bearing metal member 92 is made to support the sliding surface 91a of the rotary shaft 91 described above. Sliding surface 92a of the rotary motion. The meaning of this bearing sliding member 92 is to reduce the wear during sliding and give a good wear resistance. It can be used alone or in combination with copper, aluminum, tin, zinc, and if this paper size is applicable to China National Standard (CNS) A4 specifications ( 210 X 297 mm) -------- tr --------- line. (Please read the note on the back? Matters before filling out this page) 52 486529

V. Description of the invention (50) An alloy or alloy casting whose main component is at least, and at least the sliding surface 92a is formed of a copper alloy and an alloy casting, which can improve the wear resistance and durability when sliding in a non-lubricated state. Sexual, so very good. In addition, for the bearing metal 92, at least the portion forming the sliding surface 92a may be formed of a copper alloy and an alloy cast, and the other portions may be formed of a low-priced metal material. In addition, the sewing machine MC of the present embodiment is not provided with a lubricating oil supply mechanism for compulsorily supplying lubricating oil to the sliding parts of the rotary shaft 91 and the bearing metal member 92 constituting the sliding device 60C for the sewing machine, and adjusting the lubricating oil supply amount. Regulators, etc. The other structures are the same as those of the conventional sewing machine, so detailed descriptions are omitted. The sewing machine MC and the sliding device 60C for the sewing machine of the present embodiment configured as described above can achieve the same effects as the sewing machine µ and the sliding device 60 for the sewing machine of the first embodiment described above. That is, the non-oiling of the sliding parts of the rotating shaft 91 and the bearing metal member 92 can be easily achieved, and the best wear resistance of the sliding parts of the rotating shaft 91 and the bearing metal member 92 can be obtained at the same time. In addition, the good operation of the rotary shaft 91 can be maintained for a long time in the state of no oil supply. Also, according to the sewing machine MC and the sliding device 60C for the sewing machine according to this embodiment, when a base body 94 formed of a predetermined shape using metal is used, since the base body 94 has excellent mechanical strength, it is easy to obtain a slide requiring high strength. element. Also, 'Sewing machine MC and sewing machine sliding device 60C according to this embodiment' are used for a fiber-reinforced resin to form a multi-layered substrate of a predetermined shape. Paper rule. Money 0 National Standards (C—See Grid G χ 297 Public Love) (Please First read the note on the back? Matters and then fill out this page) Binding ---------% Printed by the Intellectual Property Bureau Employee Consumer Cooperatives of the Ministry of Economic Affairs 53 A7 B7 Five Printed and Invented by the Intellectual Property Bureau Employee Consumer Cooperatives of the Ministry of Economic Affairs Note (51) Please read the precautions on the back first and call for filling in this page. IIIIIII Order 94A ^ 'Because the fiber direction of each layer of the sliding surface 91a and the substrate 94A is slightly 90 degrees, the arrangement of the fibers can prevent the direction The strength is reduced at the same time, and the thermal deformation of the sliding element caused by the heating of the sliding resistance can be prevented. At the same time, the purpose of improving the mechanical strength of the substrate 94A can be easily achieved, so it can be easily obtained in light weight and needs to be high Sliding element of strength. 25 to 28 show a fifth embodiment of the sewing machine according to the present invention to which the sliding device for the sewing machine according to the present invention is applied. The true saddle sewing machine is a non-lubricated sliding shaft that makes the sliding device used as a sewing machine a movable shaft that performs rotary motion as a sliding element, and the sliding part of the bearing metal part that supports the rotating shaft as a supporting element. The sliding surface of the bearing metal parts is formed by pitch-based carbon fiber reinforced resin. As shown in FIG. 25, 'the sewing machine / monthly movement device 60D of the sewing machine md of this embodiment type includes a rotating shaft 101 which can be rotated as a sliding element, such as an upper shaft 101A, a lower shaft 101B, and a longitudinal axis. The shaft 10 lc, etc., and the bearing metal piece 102 supporting the rotary shaft 101 as a supporting element are, for example, an upper bearing metal piece paired with the upper shaft 101A, and a lower shaft metal piece paired with the lower shaft 101B. 〇2B and the longitudinal axis metal piece 102C which is paired with the longitudinal axis 101C, and the sliding surface 101a provided on the outer peripheral surface of the rotary shaft 101 is supported by the sliding surface i02a provided on the inner peripheral surface of the bearing metal member 102. As shown in FIG. 26, the bearing metal part 102 of this embodiment is formed on the inner surface of the base body 103 formed into a substantially cylindrical shape by a PAN-based carbon fiber reinforced resin, and a sliding layer 72D formed by an asphalt-based carbon fiber reinforced resin is formed. . In addition, the fiber direction of the PAN-based carbon fiber reinforced resin forming the base body 103 is the same as the 26th paper size. The Chinese National Standard (CNS) A4 specification (210 X 297 mm) -54-A7

V. Description of the invention (52) The arrow shown in the figure indicates that the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding layer 72D is arranged to intersect perpendicularly with the sliding direction of the rotation direction of the rotary shaft 101 as shown by the arrow in FIG. 26 The display is arranged along the sliding direction of the moving direction of the rotation axis 101. The inner peripheral surface of the sliding layer 72D is a sliding surface 102a that supports the sliding surface 101a formed on the outer peripheral surface of the rotary shaft 101. When the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 102a is arranged slightly along the sliding direction, the pitch-based carbon fiber reinforced resin forming the sliding surface 102a is the same as the sliding surface 61a of the stitch 61 described above. It is important that the ratio of the carbon fiber in contact with the sliding surface 101a in the sliding state is 60% or more. The above-mentioned structure of the bearing metal piece 102 may have a configuration in which the sliding direction of the fiber direction of the asphalt-based carbon fiber reinforced resin forming the sliding surface i02a and the moving direction of the rotary shaft 101 is slightly perpendicular to each other. With this configuration, the same effect as that of the aforementioned bearing metal member 82 can be achieved. In addition, as shown in FIG. 28, the bearing metal member 102 is provided with a sliding layer 72D made of a pitch-based carbon fiber reinforced resin on the inner surface of a base body 103 formed of a PAN-based carbon fiber reinforced resin. It is also possible to press-fit the inner surface of the housing 104 formed into a substantially cylindrical shape with metal and integrally form the bearing metal 102AB. At this time, when the fiber direction of the pAN-based carbon fiber-reinforced resin forming the matrix 103 is arranged in the press-in direction along the axis direction of the housing 104, the resistance at the time of press-in is reduced, which is very good. The material of the base 103 is not particularly limited, and it is preferable to use a PAN-based carbon fiber-reinforced resin in order to have high compressive strength and prevent damage during press-in. By adopting such a structure, the casing 104 can obtain excellent mechanical strength, so it can easily obtain the high-strength paper size outline + Guan Jia Xian (CNS) A4 specification (21〇X 297 public love) (Please read first Note on the back, please fill in this page) --------- Order --------- line * Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 55 486529 Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Print

— -------- tr --------- line one (please read the notes on the back before filling this page) A7 ----—__ 5. Description of the invention (53) Degree of Supports components while increasing productivity. Returning to FIG. 25, the aforementioned rotary shaft 101 is formed into a substantially cylindrical shape, and a part of the rotary shaft 101 is made into a rotatable motion supported by the quilt / moon moving surface 102a supported by the aforementioned bearing metal piece 102. Sliding surface 10a. This rotary shaft ⑻ & considers inertia relative to other components, using aluminum or steel with a hard anodized coating on the surface alone or in combination. In addition, in the case of the rotary shaft 101, at least the portion where the sliding surface 10la is formed is formed of aluminum or steel with a hard anodized coating on the surface, and other portions may be formed of a low-priced metal material. In addition, the sewing machine MD of the present embodiment is not provided with a lubricating oil supply mechanism for forcibly supplying lubricating oil and adjusting the amount of lubricating oil, which are the sliding parts of the rotary shaft 101 and the bearing metal part 102 constituting the sliding device 60D for the sewing machine. Oil supply adjustment mechanism. The other components are the same as those of the conventional sewing machine, so detailed explanations are omitted. The sewing machine MD and the sliding device 60D 'for the sewing machine of the present embodiment configured as described above can achieve the same effects as the sliding device 60 for the fine sewing machine µ and the sewing machine of the first embodiment described above. That is, the non-oiling of the sliding parts of the rotary shaft 101 and the rotary shaft metal piece 102 can be easily realized, and the best wear resistance of the sliding parts of the rotary shaft 101 and the rotary shaft metal piece 102 can be obtained at the same time. . In addition, it is possible to maintain a good operation of the rotary shaft 101 for a long time in the state of no oil supply. Figures 29 to 34 show a sixth embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 56 486529

V. Description of the invention (54) The sewing machine according to this embodiment is a swing shaft which is a movable sliding device used as a sliding device for the initial sewing machine and performs a swing motion as a sliding element, and a bearing metal supporting the swing shaft as a supporting element. The sliding part of the piece is a non-moistened beta, and the sliding surface of the rocking shaft is formed by pitch-based carbon fiber reinforced resin. As shown in FIG. 29, the sliding device 60E for the sewing machine of the present embodiment includes a swinging shaft ji that is movable as a sliding element, such as a scale support shaft 111A, a needle swing shaft 111B, and a needle feed shaft inc. Bearing metal parts 112 as supporting elements that support the aforementioned rocking shaft 111, for example, a scale crank metal piece 112A paired with the scale support shaft U1A, and a needle rocking shaft metal piece paired with the needle rocking shaft 111B. 2 B and The needle shaft metal piece 112C paired with the needle shaft iiic is formed so that the sliding surface 111a provided on the outer peripheral surface of the rocking shaft lu is supported by the slide surface 112a provided on the inner peripheral surface of the bearing metal 112. structure. As shown in FIG. 30, the scale support shaft niA as the shaking axis hi is provided with a sliding layer made of pitch-based carbon fiber reinforced resin on the surface of a predetermined shape of a base 113A formed of a fiber-reinforced resin in a substantially cylindrical shape. 72E 'The fiber direction of the pitch-based fiber-reinforced resin forming the sliding layer 72E is arranged along the sliding direction of the needle swing axis mB as shown by the two arrows in FIG. 30. When the fiber direction of the pitch-based carbon fiber-reinforced resin forming the sliding surface is arranged slightly along the sliding direction, the carbon fiber in the pitch-based carbon fiber-reinforced resin forming the sliding surface ula is the same as the sliding surface 61a of the stitch 61 described above. It is important that the ratio of contact with the surface to be slid 112a in a sliding state is 60% or more. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page)

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 57 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 486529 A7 __B7 V. Description of the Invention (55) The aforementioned structure of the scale support shaft 111A as the swing shaft 111 can be used to form a sliding The sliding direction of the fiber direction of the pitch-based carbon fiber-reinforced resin on the surface 111 a and the movement direction of the balance support shaft 111A as the shaking shaft 111 is slightly perpendicular to each other. By adopting such a configuration, the same effect as that of the aforementioned stitch 61A can be exhibited. In addition, the base 113A is a multilayer, and in this embodiment, it is formed into two layers, and the fiber direction of each layer is adjacent to the upper layer 113 Aa of the surface layer of the asphalt-based carbon fiber reinforced resin forming the sliding surface 111a. The two arrows shown in the figure intersect with the sliding direction slightly perpendicularly to form 90 ° interactions. That is, the fiber direction of the upper layer 113Aa of the sliding layer 72E adjacent to the substrate 113A and the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding layer 72E intersect perpendicularly, leaving the inner layer of the sliding layer 72E The fiber direction of the lower layer 113 A b is formed in the same direction as that of the pitch-based carbon fiber reinforced resin forming the sliding layer 7 2 £. The sliding layer 72E may be provided on at least the sliding surface forming portion of the surface of the base 113A. The material of the base 113A can be selected from various fiber-reinforced resins such as pitch-based carbon fiber-reinforced resin, PAN-based carbon-fiber-reinforced resin, glass-fiber-reinforced resin, aromatic polyamide fiber-reinforced resin, and butterfly-fiber-reinforced resin. However, mechanical properties are used. The PAN-based carbon fiber-reinforced resin having a better strength is preferable. In addition, the number of layers forming the base 113A can be set according to the design concept and the like. With this configuration, the fiber directions of each layer of the sliding surface 111a and the base 113 are alternately arranged at approximately 90 degrees, so that the strength reduction caused by the same fiber direction can be prevented, and the occurrence of sliding resistance can be prevented. Fever (Please read the precautions on the back before filling this page)

-58-486529 Printed by A7 B7, Consumer Cooperative of Intellectual Property Bureau, Ministry of Economic Affairs 5. Description of the invention (56) The thermal deformation of the sliding element formed, and at the same time, the mechanical strength of the substrate U3A can be easily improved. Light weight can be easily obtained And requires high-strength sliding elements. As shown in FIG. 31, the needle rocking shaft ^ ⑺ as the rocking shaft in is the same as the aforementioned scale support shaft 111A, and is arranged on the surface of the base 113B formed in a substantially cylindrical shape from a fiber-reinforced resin. The sliding direction of the sliding layer 72E formed of the carbon fiber reinforced resin and the pitch-based fiber-reinforced resin forming the sliding layer 72E is arranged along the sliding direction of the needle swing axis 111B as shown by the two arrows in FIG. 31. In addition, when the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 111 a is arranged slightly along the sliding direction, the carbon fibers in the pitch-based carbon fiber reinforced resin forming the sliding surface Ilia are the same as the sliding surface 61 a of the stitch 61 described above. It is important that the ratio of the contact with the sliding surface 111a is 60% or more in the state. The structure of the needle swing shaft 111B described above may be such that the direction of the fiber of the pitch-based carbon fiber reinforced resin forming the sliding surface 111a and the sliding direction of the movement direction of the needle swing shaft 111B are slightly perpendicular to each other. By adopting such a configuration, the same effect as that of the above-mentioned stitch 61A can be exhibited. The substrate 113B is multi-layered, and in this embodiment, it is formed into two layers, and the fiber direction of each layer is adjacent to the upper layer l13Ba of the surface layer of the asphalt-based carbon fiber reinforced resin forming the sliding surface 111a, as shown in FIG. 31. The two arrows show that they intersect with the sliding direction slightly perpendicularly and form 90 ° interactions. That is, the fiber direction shape of the upper layer 113B adjacent to the base layer 113B of the sliding layer 72E of the base U3B and the pitch-based carbon fiber forming the sliding layer 72E are strong. The paper size applies the Chinese National Standard (CNS) A4 specification (21〇X 297 public love) (Please read the note on the back? Matters before filling out this page) -------- Order -------- I line edge 59 is called 6529 A7 B7 & Description of the invention (57) The fiber directions intersect perpendicularly, and the fiber direction of the lower layer 113Bb of the inner layer 113B leaving the sliding layer 72E is formed in the same direction as the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding layer 72E. The sliding layer 72E may be provided on at least the sliding surface forming portion of the surface of the base 113B. The material of the base 113B can be selected from various fiber-reinforced resins such as pitch-based carbon fiber-reinforced resin, PAN-based carbon-fiber-reinforced resin, glass-fiber-reinforced resin, aromatic polyamide fiber-reinforced resin, and boron-fiber-reinforced resin. However, mechanical properties are used. The PAN-based carbon fiber-reinforced resin having a better strength is preferable. With this configuration, it is possible to easily obtain a light-weight and high-strength sliding element. As shown in FIG. 32, the needle feed shaft 111C serving as the shaking shaft 111 is provided with a sliding layer 72E formed of a pitch-based carbon fiber reinforced resin on the surface of a base 113C formed of a metal into a predetermined shape to form a sliding layer 72E. The fiber direction of the green fiber-reinforced resin is arranged along the sliding direction of the swing direction of the needle feed shaft 111C as shown by the two arrows in FIG. 32. When the fiber direction of the pitch-based carbon fiber-reinforced resin forming the sliding surface 11 la is arranged slightly along the sliding direction, the carbon fibers in the pitch-based carbon fiber-reinforced resin forming the sliding surface Ula are the same as the sliding surface 61 a of the stitch 61 described above. It is important that the ratio of contact with the bone-moving surface 112a in the state is 60% or more. The aforementioned structure of the needle feed shaft 111C may be such that the direction of the fiber of the pitch-based carbon fiber reinforced resin forming the sliding surface II la and the sliding direction of the movement direction of the needle feed car from III C are slightly perpendicular to each other. By adopting such a configuration, the same effects as those of the aforementioned stitches 61A can be exhibited. In addition, the sliding layer 72E is provided on the surface of the substrate 113C at least the sliding surface. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) (please read the precautions on the back before filling this page). -------- Order --------- Line · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 60 486529 A7 ------- B7 V. Description of the Invention (58) Formation Just fine. By adopting such a configuration, a sliding element requiring high strength can be easily obtained. In addition, as shown in FIG. 33, the needle feed shaft 111C is formed with a groove 115 formed on the sliding surface forming portion 114 of the base body 113C formed of metal, and an asphalt-based carbon fiber reinforced resin is wound around the groove 115 to form a slide. The needle feed shaft 111CA of the layer 72E may be used. With this configuration, the sliding surface ilia can be easily formed on the sliding surface forming portion 114 on the surface of the base 113C. Further, as shown in FIG. 34, the needle feed shaft 111C has a sliding surface 111a provided on the surface of a base 113CA formed in a substantially cylindrical shape from a fiber-reinforced resin, and the base 113CA is formed in multiple layers, for example, formed in two layers and each layer The fiber direction of the surface layer 113Caa of the asphalt-based carbon fiber-reinforced resin adjacent to the sliding surface 111a is the fiber direction as shown by the arrow in FIG. 34.

The directions are slightly perpendicular to each other to form the needle feed shafts 111CB of 90 degrees alternately. That is, the fiber direction of the upper layer 113CAa adjacent to the base 113CA of the sliding layer 72E is the fiber direction of the asphalt-based fiber-reinforced resin forming the sliding layer 72E. It intersects perpendicularly, and the fiber direction of the lower layer 63CAb of the inner layer of the base 113CA leaving the sliding layer 72E is formed in the same direction as the fiber direction of the asphalt-based fiber-reinforced resin forming the sliding layer 72E. In other words, the fiber direction of each layer of the base 113CA is such that the fiber direction of the layer adjacent to the sliding layer 72E intersects the sliding direction slightly perpendicularly to form an interactive arrangement of 90 degrees each. The sliding layer 72E may be provided on at least the sliding surface forming portion of the surface of the base 113CA. With this structure, because the substrate 94A is light and has the paper size, the Chinese National Standard (CNS) A4 specification (210 X 297 mm) is applicable (please read the precautions on the back before filling this page) ----- --- Order --------- Printed by the Intellectual Property Bureau of the Ministry of Economy Staff Consumer Cooperatives 61

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and the direction of the fiber of the pitch-based carbon fiber reinforced resin forming the sliding surface 91a is arranged to be slightly perpendicular to the sliding direction of the rotation direction of the rotating shaft 91, and the base 94A is used The fiber-reinforced resin may be composed of multiple layers. At this time, the fiber direction of the layer of the base body 94 adjacent to the sliding layer 72C may be alternately arranged at 90 degrees along the sliding direction. When this structure is made, the fiber directions of the sliding surfaces 91a and the substrate 94A are alternately arranged at approximately 90 degrees, so that the strength can be prevented from decreasing when the fiber directions are the same, and it can also prevent the heating caused by the sliding resistance. The thermal deformation of the sliding element can easily achieve the purpose of improving the mechanical strength of the base body 94A, so it is easy to obtain a sliding element that is lightweight and requires high strength. Returning to FIG. 21, the bearing metal member 92 of this embodiment is formed into a substantially cylindrical shape, and most of the inner peripheral surface of the bearing metal member 92 is a sliding surface of the aforementioned rotary shaft 91? Ia is supported by the slidable surface 92a which can rotate. The meaning of this bearing sliding member 92 is to reduce the abrasion during sliding and to give a good wear resistance. It can use copper or aluminum, tin, zinc and lead as the main component alloy or alloy casting, or at least make The sliding surface 92a is formed of a steel alloy and an alloy cast material, which can improve abrasion resistance and longevity during sliding in a non-lubricated state, so it is very good. In addition, as for the bearing metal member 92, at least the portion forming the to-be-slied surface 92 & may be formed of a copper alloy and an alloy cast, and the other portions may be formed of a low-priced metal material. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

(Please read the precautions on the back before filling this page) ------- Order --------- line one 62 A7

486529 In addition, the sewing machine MC of this embodiment is not provided with a lubricating oil supply mechanism for forcibly supplying the lubricating oil to the sliding parts of the rotary shaft 91 and the bearing metal 92 constituting the sliding device 60C for the sewing machine and adjusting the lubricating oil supply amount. Oil supply adjustment mechanism. The material of the base 113CA can be selected from various fiber-reinforced resins such as pitch-based carbon fiber reinforced resin, PAN-based carbon fiber reinforced resin, glass fiber reinforced resin, aromatic polyamide fiber reinforced resin, and boron fiber reinforced resin. However, mechanical properties are used. The PAN-based carbon fiber-reinforced resin having a better strength is preferable. With this structure, the fiber directions of the layers of the sliding surface 11U and the base 113CA are arranged alternately at approximately 90 degrees, so that the strength reduction caused by the same fiber direction can be prevented, and the occurrence of sliding resistance can be prevented. Due to the thermal deformation of the sliding element formed by the heat, because the base U3CA is lightweight and has excellent mechanical strength, it can easily obtain a sliding element that is lightweight and requires high strength. Returning to Fig. 29, a large part of the inner peripheral surface of the bearing metal part 112 of this embodiment is a sliding surface 112a that supports the sliding surface 1Ua of each of the aforementioned swing shafts 111 in a swingable motion. This bearing slide 丨 12 means to reduce the wear during sliding and give a good impact on wear resistance. It can use copper or aluminum, tin, zinc and lead as the main component alloy or alloy casting, or at least The sliding surface 112a is formed of a copper alloy and an alloy cast material, which can improve abrasion resistance and durability during sliding in a non-lubricated state, so it is very good. In addition, as for the bearing metal 112, at least the portion forming the to-be-slided surface 112 & is formed of a copper alloy and an alloy cast, and the other portions may be formed of a low-priced metal material. This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) C Please read the notes on the back before filling this page)

Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 63 486529 A7 61 > V. Description of the invention (also, the sewing machine ME of this embodiment is not provided with a swing shaft 111 and a bearing metal part 112 constituting a sliding device 60E for the sewing machine. The sliding part is provided with a lubricating oil supply mechanism for forcibly supplying lubricating oil, and an oil supply amount adjusting mechanism for adjusting a lubricating oil supply amount. As for the other components, the details are the same as those of a conventional sewing machine, and detailed descriptions thereof are omitted. And the sliding device 60E for the sewing machine can achieve the same effect as the sewing machine% and the sliding device 60 for the sewing machine of the aforementioned embodiment. That is, it is possible to easily realize the non-lubrication of the sliding part of the swing shaft ln and the swing shaft metal piece 112. At the same time, the best wear resistance of the sliding part of the rocking shaft 111 and the metal parts 112 of the rocking shaft when there is no oil supply can be obtained at the same time. And the good operation of the rocking shaft 111 can be maintained for a long time without oil supply. Figure 35 This is the seventh embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. The sewing machine is a sliding shaft that is used as a sliding device for a sewing machine, and a sliding shaft that performs a rocking motion as a sliding element, and a sliding part of a bearing metal part that supports the rocking shaft as a supporting element is a non- / door α, and shakes the metal. The sliding surface of the piece is formed of asphalt-based carbon fiber reinforced resin. As shown in FIG. 35, the sliding device 60E for the sewing machine of the present embodiment of the sewing machine Mρ includes a swinging shaft 121 that is movable as a sliding element, for example, Libra support shaft 121A, needle swing shaft 121B, needle feed shaft 12lc, etc., and bearing metal parts that support the aforementioned swing shaft 121 as supporting components (please read the precautions on the back before filling this page) ------- Order --------- Line-Printed by the Consumers 'Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 64 ^ «6529 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (62) 122, for example, with Libra The support shaft 121A is paired with the balance crank metal piece 122A, the needle swing shaft metal piece 122B paired with the needle swing shaft 121B, and the needle feed shaft metal piece 122C paired with the needle feed shaft 121C, which are formed so that the swing shaft The sliding surface 121a provided on the outer peripheral surface of 121 is supported by the sliding surface 122a provided on the inner peripheral surface of the bearing metal member 122. Each of the bearing metal members 122 in this embodiment is in accordance with the third embodiment described above. The bearing metal part 82 (refer to FIG. 18) is slightly the same. The inner surface of the shell 123 formed of a predetermined shape with metal is combined with an adhesive layer and a sliding layer 72F formed of an asphalt-based fiber-reinforced resin to integrate the sliding layer 72F. Most of the inner surface is the sliding surface 122. The fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding layer 72F is arranged along the sliding direction of the swinging axis 121 as shown by the two arrows in FIG. 35. . The inner peripheral surface of the sliding layer 72F is a sliding surface 122a that supports the sliding surface 121a formed on the outer peripheral surface of the pivoted shaft 121. When the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 122a is arranged slightly along the sliding direction, the pitch-based carbon fiber reinforced resin forming the sliding surface 122 & is the same as the sliding surface 82a of the bearing metal 82 described above. The ratio of the carbon fiber in contact with the sliding surface 121a in the sliding state must be 60% or more. The aforementioned bearing metal member 122 may be configured such that the direction of the fiber of the pitch-based carbon fiber reinforced resin forming the sliding surface 102a and the sliding direction of the movement direction of the swing shaft i2i are slightly perpendicular to each other. When this structure is used, the same effect as that of the aforementioned bearing metal member 82 can be achieved. The configuration of the bearing metal member 122 may be the same as that of the other bearing metal member 82A (refer to FIG. 20) of the third embodiment. At this time, you must use (Please read the precautions on the back before filling this page) ------- Order --------- line

65 486529

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (63) The fiber direction of the asphalt-based fiber-reinforced resin forming the sliding layer 72F is arranged along the sliding direction of the swinging axis 121 or with the moving direction of the swinging axis 121 The sliding directions are vertically intersected. The rocking shaft 121 is formed in a substantially cylindrical shape, and most of the outer peripheral surface of the rocking shaft 121 becomes a sliding surface i21a that can be reciprocated while being supported by the sliding surface 122a of the bearing metal member 122. When considering the inertia of the rocking shaft 121 with respect to other components, aluminum or steel with a hard anodized coating on the surface may be used alone or in combination. In addition, if the shaft 121 is shaken, at least the portion forming the sliding surface 12ia is formed of aluminum or steel with a hard anodized coating on the surface, and the other portions may be formed of a low-priced metal material. Also, the sewing machine MF of this embodiment is not provided with an oil supply mechanism for forcibly supplying lubricating oil to the sliding parts of the swing shaft 121 and the bearing metal piece 122 constituting the sliding device 60F for the sewing machine, and an oil supply for adjusting the amount of lubricating oil. Tiaolang institutions and so on. The other components are the same as those of the conventional sewing machine, so detailed descriptions are omitted. The sewing machine MF and the sliding device 60F for the sewing machine of the present embodiment configured as described above can achieve the same effects as the sewing machine µ and the sliding device 60 for the sewing machine of the first embodiment described above. That is, the non-oiling of the sliding parts of the rocking shaft ι21 and the metal of the rocking shaft 122 can be easily realized, and the best wear resistance of the sliding parts of the rocking shaft 121 and the metal of the rocking shaft 122 can be obtained without oiling. . In addition, the good operation of the rocking shaft 121 can be maintained for a long time in the state of no oil supply. This paper size applies to Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) III I --- Order --- I --- I. 66 486529 A7 — B7 V. Explanation of the invention (64) Figures 36 and 37 show the eighth embodiment of the sewing machine according to the present invention to which the sliding device for the sewing machine according to the present invention is applied. In the sewing machine of this embodiment, the sliding device for the sewing machine has an angular winder that reciprocates in order to become a movable sliding element and a supporting element that supports the angular winding as a sliding element without sliding the grooves and sliding parts. The sliding surface of the article's angular winder is made of pitch-based carbon fiber reinforced resin. As shown in FIG. 36, the sliding device 60G for the sewing machine 1MG of the present embodiment includes an angular winder 131 that is movable as a sliding element, and a sliding element that supports the angular winder 13 and is equipped with a slide. The guide member 133 of the groove 132 and the pair of sliding surfaces 131 a provided on the outer peripheral surface of the angular winder 131 are supported by the pair of sliding surfaces 13 2 a provided on the inner surface of the sliding groove 13 2. The angular winder 131 of this embodiment is formed by a sliding layer 72G formed by an asphalt-based carbon fiber reinforced resin, and the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding layer 72G is along the angular winder in FIG. 36 The sliding direction of the moving direction of the angular winder 13 丨 indicated by the upper and lower arrows of 131. When the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 131a is arranged along the sliding direction, the carbon fibers in the pitch-based carbon fiber reinforced resin forming the sliding surface 131a are in the same sliding state as the sliding surface 61a of the stitch 61 described above. The ratio of the lower contact with the sliding surface 132a must be 60% or more. The constituent of the aforementioned angular winder 131 is the fiber direction of the pitch-based carbon fiber reinforced resin and the angular winder 13 forming the sliding surface 131a. The size of this paper is applicable to China National Standard (CNS) A4 (210 X 297). Li) (Please read the notes on the back before filling out this page) Order --------- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 67 Printed by the Consumer ’s Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ^^ --- B7__ 5. Description of the invention (65) " 'The sliding direction of the moving direction intersects slightly perpendicularly. When this configuration is used, the same effect as that of the aforementioned stitch 61A can be achieved. As shown in FIG. 37, the angular winder 131 of this embodiment is made of a workpiece 135 made of an asphalt-based fiber-reinforced resin so that the fiber direction is the circumferential direction and formed into a cylindrical shape, and this workpiece 135 is cut. The intermediate processed product 136 is obtained to have a predetermined thickness, and then the intermediate processed product 136 is machined into a certain width by machining the opposite part of the outer periphery 2 of the intermediate processed product 136. The shape of the workpiece 135 may be a rod shape. In addition, by forming the angular coiler 131 in the foregoing manner, a large number of angular coilers 13 can be obtained efficiently and easily. Moreover, the angle-shaped winder 131 may be formed by sintering in a dedicated mold. In addition, when the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 131a intersects with the sliding direction of the angular winder 131 slightly, the fiber direction can be formed as an axial direction and can be formed in a cylindrical shape. Workpiece composed of materials made of moon-type stone-repellent fiber-reinforced resin 13 5. The guide 133 provided with the sliding groove 132 described above has a significant effect on abrasion resistance in order to reduce abrasion during sliding. Brass, high-strength brass, bronze, bronze bronze, aluminum bronze, Bronze-based alloys and alloys, alloys and alloy prayers for bearings, alloys and alloy castings containing tin, zinc, and ships as the main components, but at least the sliding surface 132a is cast with a bronze-based alloy or alloy Material formation is the best. In addition, as the guide member 133, at least the forming portion of the sliding groove 132 forming the to-be-slied surface 122a is formed of a bronze-based alloy or alloy scale, and other portions may be formed of a low-priced metal material. In addition, the sewing machine MG of this embodiment is not provided with a Chinese national standard (CNS) A4 specification (210 X 297 mm) applicable to the paper size constituting the sewing paper. -------- Order ----- ----% (Please read the precautions on the back before filling in this page) 68 486529 Printed by A7, Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs V. Description of the invention (66) Winding of machine slide device 6GG The sliding portion of the groove 132 is provided with a lubricating oil supply mechanism for compulsorily supplying lubricating oil, and a lubricating oil quantity adjustment mechanism for adjusting lubricating oil. 2. As for the other components, they are the same as those of the sewing machine known in f. Therefore, the sewing machine mg and sewing machine of the present embodiment in detail according to the foregoing structure are omitted, and the sewing machine m and the sewing machine of the first embodiment can be achieved. The same effect is achieved by the sliding device 60 for the feeder. That is, it is easy to realize the non-oiling of the sliding surface 131a of the angular winding ⑶ and the sliding part of the sliding surface 132a of the sliding groove 132 supporting the angular winding CU, and the angular winding 131 and The best wear resistance of the sliding part of the sliding groove 132 when there is no oil supply. In addition, the good operation of the angular coiler 131 can be maintained for a long period of time in the state of no oil supply. Fig. 38 is a ninth embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. The sewing machine of this embodiment includes, as its sliding device for the sewing machine, a movable f-wheel holder which performs pure movement as a sliding element, and an upper-bend yarn wheel holder which supports the upper-bent yarn wheel holder. The metal parts of the yarn wheel holder make the sliding parts of the two non-lubricated. The sliding surface of the upper banknote holder is made of asphalt-based carbon fiber reinforced resin. As shown in FIG. 38, the sewing machine of the present embodiment] ^ 11, a sliding device 60H for a sewing machine, includes a bending wheel holder 141 which is movable as a sliding element, and a supporting device 141 for supporting the bending wheel. As a supporting element, the upper bending wheel holder metal piece 142, and the upper bending wheel holder 141 are shown in FIG. 38.

-n n (Please read the notes on the back before filling this page) Order!

^ «6529

V. Description of the invention (67) The sliding surface 141a provided on the outer peripheral surface of the shaft portion 141A shown by the oblique line is supported by the sliding surface 14 仏 provided on the inner surface of the upper curve wheel holder 142. The shaft portion 141A of the upper bending wheel holder 141 of this embodiment is the same as the stitch 61 of the first embodiment (see FIG. U), and is formed of a substantially cylindrical base body made of pAN-based carbon fiber reinforced resin. (Not shown) The outer peripheral surface is not provided with a sliding layer 72H made of asphalt-based carbon fiber reinforced resin. Most of the outer peripheral surface of this sliding layer 72H is formed by the inner peripheral surface of the upper curved yarn wheel holder 142. The sliding surface 14U formed by the sliding surface 142a is formed. In addition, the fiber direction of the PAN-based carbon fiber reinforced resin forming the matrix is shown as two arrows in FIG. 38 and is arranged so as to intersect with the sliding direction of the upward bending wheel holder 141 slightly perpendicularly to form the sliding layer 72 H. As shown by the two arrows in Fig. 38, the fiber direction of the pitch-based carbon fiber-reinforced tree is arranged along the sliding direction of the upward bending yarn wheel holder 141. When the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 141a is slightly arranged along the sliding direction, the carbon fiber and the sliding state in the pitch-based carbon fiber reinforced resin forming the sliding surface 14a are the same as those of the sliding surface 61a of the stitch 61. It is important that the ratio of the contact of the sliding surface 142a is 60% or more. In addition, the constituent of the upper-curving wheel holder 141 of this embodiment is the same as that of the stitch 61A (FIG. 15), and the fiber direction of the pitch-based carbon fiber reinforced resin forming the sliding surface 141 a is arranged to be the same as that of the upper-curving yarn. The sliding direction of the movement direction of the wheel holder 141 is a structure which intersects perpendicularly. When this structure is used, the same effect as that of the aforementioned needle 61A can be achieved. The aforementioned upper-curved yarn wheel holder 142 is designed to reduce abrasion during sliding and apply Chinese National Standard (CNS) A4 (210 X 297 mm) to this paper size (please read the precautions on the back before filling this page)

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 70 A7

The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has a good impact on the wear resistance. It can be used alone or in combination with yellow steel, high-strength brass, bronze, copper, Ming bronze, and bronze alloys, alloy castings, and bearings. The use of Ming alloy and alloy castings, alloys of zinc, zinc and materials as the main components and gold castings, but at least the sliding surface 142a is made of lead green steel alloy: alloy castings can improve the non-lubricated state The sliding resistance and durability are very good. In addition, as the upper curved yarn wheel holder 142, at least the sliding surface 142a is formed of a lead bronze alloy or an alloy cast, and other parts may be formed of a low-priced metal material. In addition, the sewing machine MH of the present embodiment is not provided with a lubricating oil forcibly supplying sliding parts of the upper bending wheel holder 141 and the upper bending wheel holder metal piece 142 constituting the sliding device 60H for the sewing machine. Mechanism and oil supply amount adjustment mechanism for adjusting the supply amount of lubricating oil. The other components are the same as those of the conventional sewing machine, so detailed descriptions are omitted. The sewing machine MH of the present embodiment configured as described above and the sliding device 60H for the sewing machine can achieve the same effects as the sewing machine M and the sliding device 60 for the sewing machine of the i-th embodiment described above. That is, it is easy to realize the non-oiling of the sliding parts of the upper-curving wheel holder 141 and the metal parts 142 of the upper-curving wheel holder 142 supporting the upper-curving wheel holder 141, and the upper-curving can be obtained at the same time. The best abrasion resistance of the sliding part of the yarn wheel holder 141 and the metal part 142 of the upper curved yarn wheel holder when there is no oil supply. In addition, it can maintain a good operation of the upper-curving wheel holder 141 for a long time in the state of no oil supply. In addition, the present invention is not limited to the foregoing implementation modes, and can be used as the paper size according to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -------------- ------ Order ------- (Please read the notes on the back before filling this page) Line 71 486529 A7 B7 V. Description of Invention (69) Kinds = More. For example, it may be a structure formed by combining the foregoing embodiments. In addition, the sliding device for the sewing machine of the invention can also be used on a sewing machine with a conventional oiling mechanism. [Effects of the Invention] As described above, according to the sewing needle of the present invention according to item 1 of the scope of the patent application, the needle body is made of fiber-reinforced resin as a material, so the amount of needles can be easily reduced and the rigidity can be easily achieved. Purpose, as a result, it can easily achieve the purpose of improving performance and preventing riding flexion. According to the sewing needle of the present invention in the second patent application scope, at least the sliding part of the needle body is provided with The formation of self-lubricating fiber-reinforced resin can easily achieve the purpose of light weight and high rigidity. As a result, the purpose of improving vibration damping and preventing needle deflection can be easily achieved. At the same time, the abrasion resistance of sliding parts can be particularly improved. Consumption can play an excellent effect. Threads According to the present invention, the sewing needle according to item 3 of the scope of patent application can easily and surely achieve the purposes of light weight, high rigidity, and improvement of abrasion resistance of sliding parts, and thus can exert excellent effects. In addition, the needle of the present invention according to item 4 of the scope of the patent application can be positioned into the needle with the positioning mark as the target group, so that the needle can be easily aligned and the excellent effect can be exhibited. In addition, the needle of the present invention according to claim 5 of the scope of patent application can particularly improve the visibility of the positioning mark, so that when the needle is assembled in a sewing machine, it can easily and surely perform the matching effect, and can exhibit an excellent effect. Also according to the scope of the patent application No. 6 of the present invention, the needles of the present invention can be printed on the paper size of the needles to apply the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 72 A7 B7 Printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economy 2. Description of the invention (70) In addition, according to the sewing machine of the present invention in accordance with item 7 of the patent application range, when using the needle in item ^ of the patent range, the amount of needles is light and the rigidity is high. The purpose of improving vibration damping and preventing needle deflection, as a result, it is possible to maintain a good working environment and sewing quality for a long period of time, and to exhibit extremely excellent effects. In addition, when using the needles described in item 2 or 3 of the scope of patent application, the purpose of light weight and high rigidity can be easily achieved. As a result, it is possible to easily achieve the improvement of vibration damping and the prevention of needle deflection. Purpose, at 7 o'clock, the abrasion resistance of the sliding part can be particularly improved. As a result, it can easily and reliably maintain a good working environment and sewing quality for a long time without using oil. At the same time, it can become a cheap product and can exhibit excellent effects. . In addition, when using the needles described in any one of items 4 to 6 of the patent scope, the alignment of the needles can be easily performed, and excellent effects can be achieved. In addition, the sliding device for sewing machines of the present invention according to the scope of application for patent No. 8 has a large abrasion resistance and self-lubricating sliding surface, so it can be prevented for a long time without oil supply. The abrasion and burning damage of the sliding part of the sliding surface can exert excellent results. The sliding device for the sewing machine of the present invention according to item 9 of the 5th luxury patent scope, because the carbon fiber itself is not easy to peel off when shearing occurs in the sliding direction, so the wear on the sliding part of the sliding surface and the sliding surface can be reduced. At the same time, high bending rigidity can be easily obtained, and good workability can be obtained, so excellent effects can be exhibited. Also according to the scope of patent application No. 10 of the invention, the sliding paper size of the present invention applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 73 which is 529 5. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 when the system is manufactured (71) = set, it can collect the friction between the moving surface and the sliding surface of the moving surface and the abrasion resistance and self-lubricating damage without oil supply, so it can exert Excellent effect. In addition, the sliding arrangement for the sewing machine of the present invention according to item (1) of the scope of patent application, can reduce the temperature rise at the beginning of the closing period and the abrasion powder, so it can exert excellent effects. 1 Also according to the "sliding device for sewing machine of the present invention according to item 12 of the scope of patent application", since the sliding surface and the substrate are light in weight and have high rigidity, the vibration damping property can be improved, and the fiber direction of the sliding surface and the substrate is slightly different. The difference is 90 degrees, so it can prevent the strength of the direction from being reduced when the fiber direction is the same, and can prevent the thermal deformation of the sliding element caused by the heat generated by the sliding resistance, so it can exert an excellent effect. In addition, according to the patent application No. 13 of the invention, the sliding device for sewing machines of the present invention 'because the sliding surface and the substrate are light in weight and have high rigidity, the vibration damping property can be improved'. The 90-degree alternating configuration can prevent the strength reduction in the direction caused by the same fiber direction, and can prevent the money shape of the sliding element caused by the heat generated by the sliding resistance, so it can exert an excellent effect. Also, 'the sliding device for the sewing machine of the present invention according to the scope of application for patent No. 14', because the sliding surface and the substrate are light and have high rigidity, the vibration damping property can be improved. At the same time, each layer of the sliding surface and the substrate is different The degree is alternately arranged, so it can prevent the strength reduction in the direction caused by the same fiber direction, and can prevent the thermal deformation of the sliding element caused by the heat generated by the dynamic impedance, which can easily refer to the machinery of the substrate. Sexual strength, so it can play an excellent effect (Please read the precautions on the back before filling this page)

74 ^ «6529 A7 V. Description of the invention (72) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs and printed in accordance with the scope of patent application! The sliding device for a sewing machine according to the fifth aspect of the present invention can easily obtain a sliding element requiring high strength because the substrate has excellent mechanical strength. The sliding device for sewing machine of the present invention according to item 16 of the declared patent, 'shows excellent results because the base surface is easy to form a sliding surface, and according to claim 17 of the patent application, the sliding device for sewing machine of the present invention, Because each layer of the sliding surface and the base fiber are arranged alternately at 90 degrees, it can prevent the strength reduction in the direction caused by the same fiber direction, and can prevent the thermal deformation of the sliding element caused by the heat generated by the sliding resistance. The mechanical strength of the substrate can be easily improved, so it is easy to obtain a sliding element that is lightweight and requires high strength, and can exhibit excellent effects. In addition, according to the present invention, the sliding device for a sewing machine according to item 18 of the application, because the sliding surface and the layers of the base body are each alternately arranged at 9G degrees, it can prevent the strength of the direction from decreasing when the fiber directions are the same, and It can prevent the thermal deformation of the sliding element caused by the heat generated by the sliding resistance, and can easily improve the mechanical strength of the base body, so it can easily obtain a lightweight and high-strength sliding element, which can exert excellent effects. In addition, according to the present invention, the sliding device for a sewing machine according to the scope of the patent application No. 19, since the sliding part of the needle and the metal part of the needle can obtain the best abrasion resistance without oil supply, it can exert extremely Excellent effect. In addition, according to the application of the patent application No. 20 of the present invention for the sliding cutting machine for sliding, because the sliding part of the push rod and push rod metal parts can be obtained without oil, the best wear resistance, Can exert extremely excellent results. (Please read the note on the back? Matters before filling out this page) -------- ^ --------- ^ »·

The size of this paper is based on the national standard (CNS) A4 specification (21〇 x 297 issued 486529

Also, according to the invention of the invention according to item 2 of the patent scope, the sliding device can prevent the sliding surface of the rotary shaft and the sliding surface of the bearing metal supporting the rotary shaft from sliding without oil supply for a long time. Wear of parts and burning damage can easily obtain the most suitable combination and can exert excellent effects. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The device 'can prevent wear and burning damage of the sliding part of the sliding surface and the sliding part of the sliding metal surface of the bearing metal supporting the rocking shaft for a long time without oil. It can easily obtain the most suitable combination and can play an excellent role. The effect is that the sliding device for sewing machine of the present invention according to item 23 of the patent application 'can prevent the sliding surface of the angular winder and the sliding surface of the sliding groove supporting the angular winder for a long time without oil supply. The abrasion and burning damage of the sliding parts can easily obtain the most suitable combination and can exert excellent effects. ^ Also, the sliding device for a sewing machine of the present invention according to item 24 of the scope of the patent application has an excellent effect because an angular winder can be easily obtained. In addition, according to the sliding device for sewing machines of the present invention according to the scope of application for patent No. 25, the sliding surface of the upper-curving wheel holder and the upper-curving wheel holder can be reliably prevented from being bent for a long time without oil supply. The metal parts of the yarn wheel holder ^ are abraded and burned by the sliding part of the sliding surface, and the most suitable combination can be easily obtained, so it can exert excellent results. In addition, the sliding device for a sewing machine according to the present invention in the scope of patent application No. 26 has a large abrasion resistance and self-lubricating property, so

This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

-------- Order --------- Line! (Please read the precautions on the back before filling in this page) 486529 A7 B7 V. Description of the invention (74) The wear on the sliding part and the sliding part of the sliding surface can be prevented for a long time from wear and io burn damage, so it can exert excellent performance. effect. In addition, the seam of the present invention according to item 27 of the scope of the applied patent = because it is not easy to generate carbon fiber r when shearing occurs in the sliding direction, the friction between the sliding surface and the sliding surface of the sliding surface can be reduced: body folding, so It is good, but it can be used again. According to the invention, the sewing machine according to the scope of the patent application No. 28 can meet the requirements of long-term protection of the sliding surface and the sliding part of the sliding surface from abrasion and burning damage without oil supply. 'Abrasion resistance and self-lubrication' can exert excellent effects. Also according to the patent claim No. 29 of the scope of the invention, the sliding of the shaft machine of the present invention can reduce the temperature rise and the adhesion of abrasive powder in the early stage of closing, so it can exert excellent effects. The sliding device of the present invention of item 30 of the present invention can easily obtain the sliding surface of any of the items 26 to M of the scope of patent application, so it can exert excellent effects. In addition, according to the 31st aspect of the application for the invention, the sewing machine for the sewing machine of the invention is printed by the Ministry of Intellectual Property Bureau of the Ministry of Economic Affairs, and printed on the consumer cooperative. Its casing has excellent mechanical strength, so it can easily be supported by the required strength. element. In addition, according to the present invention, the sliding device for the sewing machine of the 32nd aspect of the present invention has a compressive strength and extensibility of the reinforcing layer formed by the PAN-based carbon fiber reinforced resin, and the fiber direction is pressed into the casing. It is arranged in the direction, so it can reduce the resistance when pressing in and can exert excellent effect. This paper size applies the Chinese National Standard (CNS) A4 specification (21〇χ 297 mm) -77 486529 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (75 > The sliding device for a sewing machine of the present invention has a sliding element made of steel, which has a high mechanical strength, so that a sliding element requiring high strength can be easily obtained, and the surface is formed of aluminum with a hard anodized coating. The sliding element is light in weight and has good mechanical strength and small inertia, so it can easily obtain a sliding element that requires vibration damping and high strength, and can exert excellent results. In addition, according to the 34th aspect of the scope of patent application The sliding device for the sewing machine of the present invention can prevent wear and burning damage of the sliding surface of the reciprocating shaft and the sliding part of the sliding surface of the bearing metal supporting the reciprocating shaft for a long time without oil supply, and can easily obtain the most suitable combination. Therefore, excellent effects can be exerted. Also, according to the 35th aspect of the present invention, the sliding farm for sewing machines of the present invention can be grown without oil. It can surely prevent the abrasion and burning damage of the sliding surface of the rotating shaft and the sliding part of the sliding surface of the bearing metal supporting the rotating shaft. The most suitable combination can be easily obtained and can exert excellent effects. The sliding device for a sewing machine according to the present invention within the scope of item 36 can prevent wear and burn damage of the sliding surface of the rocking shaft and the sliding part of the sliding surface of the bearing metal supporting the rocking shaft for a long time without oil supply. It is easy to obtain the most suitable combination, so it can exert excellent effects. Also, according to the sewing machine of the present invention, which can be applied for the patent No. 37, it can easily realize the non-oiling of the sliding part, so it can exert excellent effects. Simple instructions] (Please read the note on the back before filling in this page) -------- Order ----------

78 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 486529 A7 -----------------____ V. Description of the invention (76) Figure 1 shows the essentials of the first implementation type of the stitches of the present invention. Front view of the ministry. Fig. 2 is an enlarged sectional view near the positioning mark of the stitch in Fig. 1; Fig. 3 is a front view of a modified example of the needle holder of the sewing needle of Fig. 1. Fig. 4 is a front view of another modified example of the needle clamp of the sewing needle of Fig. 1; Fig. 5 is a front view of still another modification of the needle clamp of the sewing needle of Fig. 1; Fig. 6 is a view similar to Fig. 1 showing the essential parts of the second embodiment of the sewing needle according to the present invention. Fig. 7 is an enlarged sectional view near the positioning mark of the stitch in Fig. 6; Fig. 8 is an enlarged sectional view of a main part of a third embodiment of the sewing needle according to the present invention. Fig. 9 is a front view of the main part of the embodiment of the sewing machine according to the present invention using the sewing needle of the present invention. Fig. 10 is a front view of a main part of a first embodiment of a sewing machine according to the present invention using a sliding device for a sewing machine according to the present invention. Fig. 11 is a partial cutaway front view of the main part of the sliding device for the sewing machine of Fig. 10; Fig. 12 is an enlarged sectional view taken along line 12-12 in Fig. 11. Fig. 13 is an explanatory diagram of the results of abrasion test of pitch-based carbon fiber reinforced resin and pan-based carbon fiber reinforced resin. Fig. 14 is a graph showing the relationship between the heating temperature and time of the sliding part of the needle. Fig. 15 is a view showing a modification of Fig. 10 in the same situation as Fig. 12; Figure 16 shows the rise of the fiber direction of pitch-based carbon fiber reinforced resin. The paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page)

79

2. Description of the invention (77) Schematic diagram of the relationship between temperature and time. Fig. 17 is a view showing a main part of the second embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied, which is the same as Fig. 10; Fig. 18 is a view showing the same parts as those of Fig. 10 in the main part of the third embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. Fig. 19 is an explanatory diagram of an example of a method for forming a sliding layer of the bearing metal member of Fig. 18. Fig. 20 is a view showing another example of the bearing metal part of Fig. 18 in the same situation as Fig. 8; Fig. 21 is a view showing the same parts as those in Fig. 10 in the main part of the fourth embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. Fig. 22 is a partial cross-sectional front view of the main part of the rotary shaft of Fig. 21; Fig. 23 is a diagram showing the configuration of the main part of another example of Fig. 21 in the same manner as in Fig. 22; Fig. 24 is a diagram showing the configuration of the main part of another example of Fig. 21 in the same manner as in Fig. 22; Fig. 25 is a view showing a main part of the fifth embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied, in the same manner as in Fig. 10; Figure 26 is a section of the main parts of the bearing metal parts shown in Figure 25. The paper dimensions are applicable to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling out this page. )

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 80-^ 529

Face front view. Fig. 27 is a view showing the structure of the main part of another example of the bearing metal member of Fig. 25 in the same situation as that of Fig. 26. Fig. 28 is a view showing the structure of the main part of the other example of the bearing metal part shown in Fig. 25 as in Fig. 26. Fig. 29 is a view showing a main part of the sixth embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied, in the same manner as in Fig. 10; Fig. 30 is a partial cross-sectional front view of the main part of the balance shaft of Fig. 29. Fig. 31 is a view showing the configuration of the main part of the needle swing shaft of Fig. 29 in the same situation as that of Fig. 30. Fig. 32 is a diagram showing the configuration of the main part of the needle feed shaft of Fig. 29 in the same situation as Fig. 30. Fig. 33 is a diagram showing the configuration of the main part of the needle shaft of Fig. 29 in the same situation as that of Fig. 30. Fig. 34 is a diagram of the same configuration of the main part of the needle feed shaft of Fig. 29 as that of Fig. 30. Fig. 35 is a view showing the same situation as in Fig. 10 in the main part of the seventh embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. Fig. 36 is a perspective view of a main part of an eighth embodiment of a sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied; Figure 37 is one of the methods of forming the angular winder shown in Figure 36. The paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page ) Order --------- Line

A Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 81 486529 A7 _B7 V. Description of Invention (79) Illustration. (Please read the precautions on the back before filling out this page.) Figure 38 is a diagram of the main part of the ninth embodiment of the sewing machine according to the present invention to which the sliding device for a sewing machine according to the present invention is applied. . Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs a

This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 82 486529 A7 B7 V. Description of the invention (80) Component number comparison f Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economy 1 (:, 61, 61 eight ... Needle rods 122a, 132a, 142a ... are slid into the surface 2, 2 into, 23, 2 (:, 71 ". Needle body 72, 72A, 72B, 72C, 72D, 72E, 2CA ... Inner layer 72F, 72G, 72H ... Sliding layer 2CB ... Outer layer 73,73A ... Inner layer 3, 3, 8, 3, 3 (: ... pin clip 74, 74A ... outer layer 4, 4A, 4B ... Positioning mark 76 ... Push rod 5 ... Recess 78 ... Push rod body 6 ... Visibility improving element 81 ... Reciprocating shaft 21, M, MA, MB, MC, MD, ME 83, 104, 123 ... case,] \ ^,] \ 40,] \ 〇 ... sewing machine 85 ... molding auxiliary element 24,54 ... upper shaft 88 ... reinforcing layer 40 ··· Needle bearings 91, 91AA, 91AB, 101 ··· Rotary shaft 40a ··· Metal parts 91A, 101A on the needle ... Upper shaft 40b ·· Metal parts 91B, 101B under the needle ... Lower shaft 60 , 60A, 60B, 60C, 60D, 60E, 91C, 101C ... Vertical axes 60F, 60G, 60H ... 92A for sewing machines , 102A ··· Upper shaft metal parts sliding device 92B, 102B ··· Lower shaft metal parts 61a, 76a, 81a, 91a, 101a, llla, 92C, 102C ... Longitudinal shaft metal parts 12 la, l 31a, 141 a · ·· Sliding surfaces 95,114 ... Sliding surface forming parts 65,82,92,92AA, 92AB, 102, 96,115 ... Grooves 112,122 ·· Bearing metal parts 111,121 ··· Shaking shafts 65a, 77a, 82a , 92a, 102a, 112a, 111A ... Libra support shaft (please read the precautions on the back before filling this page) Order --------- Line · This paper size applies to China National Standard (CNS) A4 specifications ( 210 X 297 mm) 83 486529 A7 _B7_ V. Description of the invention (81) 111B ... Needle swing shaft 131 ... Angle winder 111C ... Needle shaft 132 ... Sliding groove 112A ... Libra crank metal piece 133 ··· Guide 112B ... Needle Shaft Shaft Needle Member 141 ... Upper Bending Wheel Holder 112C ... Needle Shaft Metal 142 ... Upper Bending Wheel Holder Metal f (Please read the back Please fill in this page before ordering) Order --------- Line · Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 84

Claims (1)

Application for Patent Scope No. 881 16445 Patent Declaration Case Revised Patent Scope! · A kind of sewing needle, which is tied to the needle, "Date of revision: June 1990 lies in, at least the front " is. Who has a needle clip, its characteristics H. The shape of the material of the H-needle body made of microfibrillated resin I Hi: The needle of the first item in the range, among which the above-mentioned needle body is completed. &Quot; Shaped by fiber-reinforced resin with self-lubricating properties 3 :: "! 2 ^ needle, of which the aforementioned self-lubricating, dagger tree is called stone anti-fiber reinforced resin. 4. If the scope of the patent application is the chastity ren-huanqi, the positioning mark for the alignment of the stitches is set on the front seam of the towel. 5. = Please use the needle in item 4 of the patent scope, wherein the positioning mark is formed by a concave part recessed on the needle body, and a visually-improving element with excellent visibility is fixedly formed. 6. The sewing needle according to item 4 of the scope of patent application, wherein the aforementioned positioning mark is a stamp formed on the needle body. This type of sewing machine has a pair of needles that reciprocate the upper shaft in the up-down direction and a pair of needle shafts that support the needles to be slidable. It is characterized in that the needles are the needles in the 4th scope of the patent application. .