TW522190B - Sewing machine equipped with cutter - Google Patents

Abstract

The object of the present invention is to surely drive a movable cutter arranged in front of a needle location and perform stable hem stitching at high speed and also in a sewing machine with the needle location on a small-diameter cylindrical bed. The solution of the present invention is that a cutter shaft 42 is arranged along the front surface of a bed body B with a cylindrical bed B1 projecting from its tip end. The cutter shaft 42 is connected to a cam shaft 50 for driving a thread feeding cam 5 arranged outside the bed body B at its base end side by way of a transmission mechanism with an eccentric ring 53 and a transmission arm 48. A movable cutter of a cutter mechanism 4 is attached to a tip end of the cutter shaft 42 extending to the front position of the cylindrical bed B1. The forward and backward turning of the cutter shaft 42 driven by the rotation of the cam shaft 50 is transmitted to the movable cutter so that the cutter appears or disappears in front of the needle location set on the cylindrical bed B1.

Description

V. Description of the invention (1)

[Technical field to which the invention belongs J. The present invention relates to a kind of sewing machine with a right # cutting knife appearing in the needle and falling eight knifes, which is fixed to the knife at this position; = The edges of the fabric are cut. [Known techniques] to "feed" the needle into the needle drop position [Known technique] For example, 'In the shorts, set the elastic band passing part Km in the waist, during the process of making Km, put it in place to carry the needle At the beginning of the ruffle seam of the fabric which performs the above-mentioned ruffle seam ^. Kaiping No. 10-287 and the like disclosed in the front lower part using, for example, a special needle drop position, are equipped with a sewing cutter that can swing up and down, and a driving curve of the main shaft of the machine The cutting edge of the front edge is formed by a fixed cutter that bends the position of the “n-knife hook shape” of the sewing machine. The movable cutting can be folded back to the inner side, and it can be caught by the fixed cutter and pulled down. As a result, the cut edge can be cut with * 1 = and the folding width ▲ at the beginning. Stable hemming seam. [Problem to be solved by the invention] In the sewing machine with a cutter as described above, the movable cutter is fitted on the bottom of the sewing machine with its bottom end portion. The erected cutter m Page 4 2098-3991-PF.ptd 522190 V. Description of the invention (2) The cutter shaft is installed in the way of the cutter shaft and other movable parts of the sewing machine (needle, ruler 4 蒦, The same as the drive shaft used for feeding over wheels, etc., it is a known eccentric mechanism. It is connected to the main shaft of the sewing machine and is configured to repeatedly rotate within a predetermined angle in response to the rotation of the main shaft of the sewing machine. The movable cutter formed by the above-mentioned transmission structure will follow the rotation of the main shaft of the sewing machine and follow the axis of the cutter shaft. By shaking, the front-end gear part will move up and down on the sewing machine base by the above-mentioned shaking, and abut the fixed cutter to cut the edge of the fabric. On the other hand, the ruffled sewing is to form a waist The elastic band passing part is based on the above-mentioned knitted shorts, baby pants, etc., which are made into a tubular shape. Therefore, a sewing machine for frill sewing is generally configured as follows: On the side of the main body of the sewing machine with the built-in main shaft of the sewing machine, a cylindrical base that can be inserted into the cylindrical sewing product is set out, and the needle drop position is set on the upper part of the above-mentioned base. The connection #: = i The hem seam of the base is made with a sewing machine

At the time of the machine, the cutter is placed in the needle drop position ... It becomes the movable cutter that will feed the sewing area to the inside of the cylindrical base, and the moving feed gear will act as the above-mentioned movable shaft. For cutting knife :: The transmission mechanism of the two gears can be used without any interference with the transmission shaft (knife shaft), and it can be used in the space. " It is limited to be arranged inside the cylindrical base. However, ‘the shape of the cylindrical base is determined on the premise of the above.

522190 V. Description of the invention (3) — ~ Sewing a wide range of products including the tube 1 sewing machine, so there is a commercial production of sewing machines with a cylindrical base with a fine diameter of about mm. ^ 0 = In the sewing machine, the feed teeth located inside the cylindrical base have to be thinned. Therefore, as mentioned above, it is also a movable cutter;

When the knife shaft is used, the transmission shaft will rotate repeatedly with the bending phenomenon due to the load of the movable knife when cutting. Therefore, the cutting action of the knife will not be correct. Feeding the gear to advance J to stabilize 2 may cause obstacles, which leads to the problem of inability to perform sewing at high speeds. The present invention has been made in view of the above problems, and aims to provide a sewing machine with a cutter capable of sewing on a highly stable ruffle, which is sewn :: by a cutter shaft arranged on the outside of the base body. Appears on the iiC knife for transmission, and on a small-diameter cylindrical base: There is a needle drop position, so it is not suitable for the oblique female 丨 Tian π 4, the presser liter mw uses the cutting action of the movable cutter to separate The feed motion is hindered by the feed gear.鲫 Actions and Benefits [Means to Solve the Problem] Zuma Mafa! ; The first invention of a sewing machine with a cutting knife includes:-a barrel with 3 protrusions, which is arranged on one side of the barrel body with a built-in main shaft of the sewing machine, and a needle drop position is set on the upper part; It is arranged on the outer side of the base body and is connected to the above-mentioned drive by the -end :: protrusion: moving device'is the large part of the shaft of the cutter shaft, and it should rotate the corresponding sleeve.

V. Description of the invention (4) The above-mentioned cutter shaft is rotated repeatedly within the range of the angle between the existing knife and the above-mentioned cutter ^; a movable cutter rotates and appears in the above name = the other end, and The cutting axis should be reversed and abutted to the front of the lower position of the movable cutter L ^ f; and the edge of the cloth at a fixed cutter position is cut. It is used to drop the feed needle into the above-mentioned needle. In the present invention, it is a frame mounted on the outside of the front of the body. The upper part is connected to the bottom through the transmission device through the transmission device: and before the extension to the cylindrical base, a movable cutter is installed from the end of the main shaft of the sewing machine, so that the cutter shaft can be rotated repeatedly. The rotation of the transmission shaft caused by the eighth causes the repeated rotation of the driving shaft that is in the needle drop position to be transmitted to the movable cutter, and the transmission shaft in the first invention of the second invention is the right one. The machine is characterized by a transmission shaft on a spinning cam. 2. Disposed outside the above-mentioned base body In the present invention, the drive shaft is equipped with the drive shaft of the cutter shaft = good, and the drive shaft of the spinning cam outside the seat. Concurrently, without the need for a dedicated transmission, the third invention is: In the first invention or the second invention, the 'knives of the cutter' is characterized by a ring and a fitting support on the above-mentioned transmission device. There are:-eccentricity: fitted to the above cutter shaft, and the other-the end; two: the transmission rod, whose-end changing device is used to connect the transmission and J to the above eccentric ring; one to the length of the transmission rod The axis direction changes. The connecting part of the above eccentric ring

V. Description of the invention (5) Qu Xi ^ In the present invention, the transmission shaft and the cutter shaft are rotated by repeatedly turning the #ren ancient name ring and the second lever of the transmission rod ... to change the eccentricity mentioned above, ~ The symbol „„: The long axis direction of the a-xuan transmission lever is changed, and the dynamic adjustment of the movable cutter is caused by the repeated rotation of the cutter shaft. [Schematic description] Figure 1 has a dance π 坌? Okazaki * The overall structure of the cutting machine is a perspective view. The cutting mechanism of the sewing machine with a cutting blade of Μ has an oblique view of the structure and needle plate. Figure 3 is an exploded perspective view of the main part of the cutter mechanism shown in Figure 2. Ϊ4 is an explanatory diagram of a state where the cloth is cut by a movable cutter and a fixed cutter. Figure 5 shows the cutter shaft and an enlarged oblique view. ^ Important part of the connection relationship of the camshaft Figure 6 is a perspective view of the appearance of the present invention. Other embodiments of the sewing machine having a cutting knife

[Description of symbols] 1 ~ needle, 4 ~ cutter mechanism; 40 ~ cutter table; 42 ~ cutter shaft; 44 ~ fixed cutter; 2 ~ needle plate; 5 ~ spinning cam; 41 ~ bearing table; 43 ~ Movable cutter; 5 〇 camshaft (drive shaft

522190 V. Description of the invention (6) B ~ base body W ~ cloth. A ~ Sewing machine arm Βι ~ Cylinder base [Example of the invention: Ming. The following is a detailed description of an embodiment of the present invention in conjunction with the drawings. FIG. 1 shows the overall structure of a sewing machine with a cutter according to the present invention. The sewing machine with a squinting foot Γ is a sewing machine with a sewing machine arm A supported by its bottom end installed on the base body β: PC. The material also has A thin-diameter cylindrical base & protruding in a parallel manner from the side of the base body B below the f of the sewing. A needle bar and a push cup are hanged and supported on the front end of the sewing machine arm A, and a plurality of needles 1 1 · · are installed below the needle bar, and a pressing metal 2 is provided above the surface. Needle 1, 1,... And pressing metal 2 lower position = Needle plate 3 (see Fig. 2), and the inside of the lower base 1 of the needle plate 3 contains a ruler and a feeding gear (not shown). . As a result, the upper shaft of Γη V is driven by an unillustrated upper shaft that is recognized inside the stitch arm A, and moves ten bars up and down within a predetermined stroke of the needle plate 3: ... It includes lowering the needle plate 3 by a predetermined operation, and pressing the cloth w fed from the front of the metal 2 system B; 3 above, between the base books. “、、 brief 4） The needle mechanism 3 ′ is clamped on the needle plate 3 ′ as shown in FIG. 1 and the knife mechanism 4 is shown in FIG. 2. The flat sewing sewing machine with the cutter as described above is provided on the front side of the end of the cylindrical base h Cut

522190 V. Description of the invention (7) An exploded oblique view of the main part of the structure 4 of the structure 4-a perspective view of the structure and the needle plate. Fig. 3 is the needle plate of the cutter in Fig. 2, 3, g. It is formed in the way that the aforementioned frame is mounted on the front end of the tubular base dagger; = At the center of the wide space, the $ needles are moved by f when they are aligned side by side in the width direction ... , The machine (3 in the figure) needle drop holes 30, 30. and the left and right two m ten ϊ down position, and before the above-mentioned needle drop position of the feed gear 2 can be 3, not shown feed Moment the opening of the gear

As shown in the fourth figure in Figure 10), the white cloth arrow "t" in the long drawing shows that the cloth W (reference) is fed in, and Λ /: one side (front side) goes to the other side (rear side needle plate 3). The process of copying the disc is as follows: first clamp the cloth W above and reuse it from the above metal feed 2 (picture 1), showing the feed gear at m31 ... The above-mentioned feeding is performed intermittently during the same pass, and is stitched into the above-mentioned needle drop hole 30, 3 0 ··· with the temple. And the movement of the ruler base (not shown) arranged under the needle plate 3 completes the cylindrical shape. The B machine 1 冓 i system includes: fixedly installed on the front end side of the base body B (the large out side of the bay-shaped bottom material) The front cutting table 4〇; and ^: f ^ 疋 are arranged on the bearing stand 41 (see Fig. 1 and Fig. 1) in front of the bottom end side of the base body B; along the front of the base body between the above A knife shaft 42; a movable knife 43 fitted at the bottom end of the knife shaft 42 extending from the knife table 40; and a knife extending from the movable knife "

522190 Fifth invention description (8) The other side (right side of the figure) of the movable cutter 43 is brought from the main shaft of the sewing machine (the cloth is cut to order " 744 " 7 will be fed in ≪ The edge of the needle plate 3 is cut off. The cutting table 40 shown in Fig. 2 is fixed to the front end side of the base body B by a plurality of retaining springs. So = the position of needle board 3 set up on the right is on the right side. Cut = in: the two-axis length direction and the interval 2 is set on the cutting table 40 'table 41 来 八 别 广 \ 〇 二 和 位 ☆ its bottom end The above-mentioned bearing port 4 on the side 1 is supported by a fruit knife so as to freely rotate in the shaft ring, and is set up along the front of the base body β. The front end of the knife shaft 42 cuts the needle plate 3 in a direction which is slightly orthogonal to the feeding direction of the cloth w, and protrudes to the left of the needle drop position set on the needle plate 3. ; ^ The movable cutter 43 'has a cutting edge portion 43a hook-shaped curved along the front end / is fixed to the protruding end portion of the cutter shaft 42 above, and corresponds to the drive unit described above The raw cutter shaft 42 rotates repeatedly and the two-edged portion 43a moves up and down. In the needle plate 3, the left front part of the needle drop hole 2 is formed with a rectangular cutout cut to an appropriate width. The part 32 is: the blade part 仏 'at the front end of the Shiba knife 43 will appear as shown in the second mouth, and when it moves up, it protrudes above the needle plate 3 through the above-mentioned vacant part 32. As shown in FIG. 3 again and again The 'fixed cutter mentioned above' is a plate-shaped member in the long axis direction 2a, and it is adjacent to the position of the women's clothing of the movable cutter 43 and is mounted on the fixed table 45 supported at the beginning of the cutter table 2098- 3991-PF.ptd Page 11 522190 V. Description of the invention (9) 邛 44a. The blade 44a will be executed by abutting against the part as above: the blade 仏 of the movable cutter 43 and the above The abutting shape ΓβΛΓ uses the movable cutter 43 and the fixed cutter 44 to cut the edge f of the cloth. The cutting action is as shown in the figure. The cutting action is as shown in the figure. Bu +. In the state where the feed needle is in the drop position, the fabric Ψ is stitched to the surface of the fabric w on the surface side of the fabric w, and the fold is sewn. The needle is shown in the lowered position H; the formula comes into =;? Edge E so that it has a folding knife with a suitable width of the folding section 5 needles: in the position before the lower position 'movable up and down as above _ because of 1 ancient 彺When moving up, the above-mentioned cloth w is pushed upward from the inner side, and S = ί the vicinity of the folded edge E of the material W is bent into a hook-shaped knife portion 4 3 a = material 'in this state as shown in the figure The arrow goes like this: Move, guide "the abutment part of the fixed blade 44a of the cutting knife 44 and proceed by the transmission from the above-mentioned cutting knife ⑽, and by: ί ΐ Γ: movable cutting knife 4 3 Moving up and down and continuously, the right edge of the second solid layer is cut and stitched. As shown in FIG. 2, in the middle portion of the cutter shaft 42, a coil spring is installed in the middle between one pair of the supporting brackets 40a and 40a of the table 40, and a ring spring, "" Is fitted by applying the "spring bearing ring 46"

522190 V. Description of invention (10) The elastic force is pushed to the bottom side, that is, to the right from the front. By the above-mentioned pressing, the movable cutter 43 at the front end of the cutter shaft 42 will move up and down with its blade ^ 43a abutting against the blade portion 44a of the fixed cutter 44. ^ This can be performed at the two blade portions 43a, The cloth w is cut reliably at 44a. In addition, the fixed position of the impulse bearing ring 46 can be changed toward the axial length of the cutter shaft 42. The elasticity of the ring-shaped elastic 47 can be increased or decreased by the above-mentioned change, and the blade portion 43a can be appropriately determined. 44a abutment force. In order to make the movable cutter 43 move up and down as described above, the transmission applied to the cutter shaft 42 is from the vicinity of the bottom end supported by the bearing stand 41 (shown in Fig. 1). A spinning cam 5 is arranged below the bearing opening in front of the bottom end side. The above-mentioned spinning cam 5 rotates by using a main shaft (not shown) of a sewing machine supported inside the base body B to rotate 'to intermittently increase the tension of the thread of the loop provided by the loop of the ruler operating at the needle drop position. The deceleration is fixed at one end (left end) of the convex-wheel shaft 50 which is located in front of the bottom end side of the bottom and parallel to the cutting shaft 仏. The camshaft 50 is located below the foot c of the sewing machine arm a, and is supported by a support table 51 fixedly provided on the front face of the base body 6 = moon car: freely arranged on two shaft rings spaced in the long direction Spin. One end (right end) of the camshaft 超过 is extended beyond the bottom end side end surface of the base body B, and is set again, and a timing belt 52 * and an unillustrated main shaft of the sewing machine protruding from the end surface on the same side are applied. Linked. The camshaft 50 constructed as above is rotated along the axis g by the transmission from the main shaft of the sewing machine, so as to continuously rotate the spinning cam 5 fitted to the left end in one direction.

522190 V. Description of the invention (11) The rotating transmission shaft acts on the front surface of the base body B, and the thread cam plate 53 of the loop thread is installed at the position of the spinning cam 5 which is rotated as described above, and the spinning cam 5 is to determine its position so that it can appear on the line plate 53 during rotation.

ί 脚 ΐ Description: Λ board 5 is provided at three places from the sewing machine f A 唆 convex 钤 5, w: 蠖 其 其 其 并 系 系 系 系 系 系 横 横 横 横 横 纺 纺 纺 纺 纺 纺 久 出 久 位置 position, And via the ruler inside the base body B's inner shape base knife. Russ μ, + guide; the second spinning cam 5 comes out of H to the thread guide plate 53S, and the rule base and the thread are tightly pulled when pushed, and when Λ Λ is out of the dog, it will be caused by the spinning cam 5 When it is submerged on the thread board 53, it will "loose in the hair; the tension will increase and decrease to supply the ruler thread. The cutter shaft 42 is used as above. Two movements: in the machine, the above-mentioned movable cutter 43 ~ The spinning thread that acts like the above fan & private as a transmission shaft 'is connected with the camshaft 5 as described above. The thin rotation is used to connect. The knife shaft 42 and the cam shaft 5 are partially enlarged. At this time, it is important to omit the splicing connection portion embedded in the front end of the cam shaft 50. The spinning cam 5_ 53. Figure 5, wheel 5 and as shown in the figure, from the cutter shaft 42 as the transmission cutter 43 is pushed # & ~ ^ cut glaze cam 50 and the movable support is placed on the cam System, including: the driving rod 48 at the bottom of the corresponding part of the funeral 42, and 2 = the arm 554 protruding from the eccentric ring 54 fitted on the cutter shaft ::; :::

522190 V. Description of the invention (12) Eccentric ring 54 is used to transmit the transmission of the shaft to the sewing shaft to the needle, the ruler, and the direction of rotation. It is widely used in the sewing machine teeth: it is a movable one that performs repeated actions. Eccentric ring 54. Fitting support: well-known mechanical elements. As shown in the figure, the arm 55 of the eccentric ring 54 will reciprocate with a predetermined stroke due to the camshaft 5G 'rotating 5 ° from the convex shaft; the rotation is in the previous length direction at the front end of the above-mentioned transmission rod 48. As a result, the cutting blade shaft 42 which is functioning as a pivot and shakes to dry means that the shaft 42 at its bottom end will also rotate repeatedly in response to the above-mentioned swinging blade 48. The above-mentioned cutting operation is completed ^. The movable cutter installed in the heart # Here, in the present invention, the transmission of the sewing knife 43 with the cutter is via the base_; the movable camshaft 50 and the cutter shaft 42 to # # m Extended ruler: Second, there will be no cutting action due to the large inner cutting blade caused by cutting: ^ = cutting knife 4 3; out = at the base tip The front-end = wheel can be driven by a special drive shaft: w may hinder the feed action, and t = at first, or hemming sewing. In addition, it is also stable at the south speed. In addition, in the above embodiment, the spinning cam 5 on the outside of the body B is used as a transmission shaft. Therefore, it is not necessary to use the transmission shaft arranged on the base. 50 doubles as a drive shaft for the movable cutter 43,

^ 22190 V. Description of the invention (13) The structure is simplified. The configuration of HZ / L κ is τ # i $. For the spinning cam 5 on the outside of the base body 6 Yi Yi1: The setting of the base line of the derived ruler is more suitable for the i-line cutting. It is easier to repair after the break, so connect X to ti5 as shown in Figure ii. The driving rod 48 is 49 to the arm 55 of the eccentric ring 54, and: The long hole provided in the direction of the long axis of m48— 丄The connection position can be changed within the length of the ^ long hole 49. By changing the structure described by the iron Lt, the driving angle 纟 generated by the reciprocating movement of the front end of the arm 55 of the eccentric ring 54 can be within the length of the above-mentioned long hole 49, so that the cutter shaft can be passed The stroke of up and down movement of the movable knife 43 produced by the rabbit I & 42 conveyed in 42 can be adjusted according to, for example, the type of the cloth W of the object, and a good cutting state can be obtained strangely. & Fig. 6 is an external view f of another embodiment of the sewing machine with a cutter according to the present invention. In this embodiment, a spinning cam 5 is mounted on a cam shaft 50 protruding from one side of the needle drop position adjacent to the foot c of the sewing machine arm A, and an eccentric ring 54 is fitted and supported on the cam shaft The extended end of μ 'and the eccentric ring 54—the front end of the arm 55 extending forward and the f end extending above the transmission rod 48 fitted on the cutter shaft 42 provided on the front face of the base body B They are connected so that the cutter shaft 42 can be rotated repeatedly in response to the rotation of the cam shaft 50. The camshaft 50 passes through the surrounding wall and extends to the inside of the foot C, and the extension end is connected to the main shaft of the sewing machine inside the base body B through a timing belt, and then rotates in one direction corresponding to the rotation of the main shaft of the sewing machine. To constitute. In addition, in this embodiment, since other structures

2098-3991-PF.ptd Page 16 522190 V. Description of the invention (14) ___ w Heart ring 5 4 is located on the outer side of the spinning cam 5 'and is inserted into a part of the front of the spinning cam 5 The spinning cam 5 and the eccentric ring 5 4 are fitted and supported on the cam shaft 50 protruding from the foot C from the outside, and the spinning cam 5 can also be made as shown in FIG. 1. The front is configured open. When configured as above, for the potential of the ruler worm line of cam 5, eg must stand μ The slaves are the same as the embodiment shown in FIG. 1, so the reference symbols and detailed descriptions common to FIG. 1 are omitted. . In addition, in FIG. 6, the front side of the above-mentioned deflection, force green cymbal wheel b is arranged in an open type. When configured as above, the setting of the ruler thread of the spinning cam 5 and the repair of the ruler thread cut during sewing will be easy. [Effects of the Invention] The first invention of the present invention, as described in detail above, is cut and cut. The slit 1A with a cutter is connected to a transmission device along two sides of a base body having a cylindrical base on one side. The rotation of the shaft through the base to the machine main shaft is structured through the front part of the cutting shaft set to the front of the cylindrical base. The transmission shaft with the knife in and out of the needle can make the movable use: the movable bottom cutter with a cylindrical bottom load of the caliber is stable, and can be fed with a large pair of feed gears inside the cylindrical base 2 In addition to &, there is no risk that it will be able to perform stable pleating and making under high pressure, so in addition, the second invention has a right drive shaft to serve as a part, so it is not a shaft system. Use the tool to move the cutter shaft without setting a new dedicated transmission ^

2098-3991-PF.ptd page 17 In the spinning cam sewing machine outside the base body, because it is equipped with 522190, the description of the invention (15) * ---- 'So it can be stabilized by simple structure. The cutting action. Furthermore, the transmission device of the cutter shaft from the transmission shaft in the sewing machine with a cutter of the third invention is supported by an eccentric ring due to the former and a transmission rod D fitted to the latter. And the eccentric ring's connection to the transmission rod can be formed and its direction is changed, so it can be simply adjusted because the long axis of the moving cup = the repeated rotational amount of the cutter shaft and because of the above :: the transmission of the shaft Produces the action of the movable cutter, which is generated by repeated rotation-and exerts the excellent effect of the present invention. Why is it white?

Claims (1)

522190 6. Scope of patent application 1. A sewing machine with a cutter, including:-side, 'dog out δ is placed on the side of the barrel body with the built-in main shaft of the sewing machine and a needle drop position is set on the upper part; The shaft 'makes it at least partly protrude beyond the above-mentioned base body = configuration, and by ... the above-mentioned sewing machine main pumping ==: 卜 base I ίΐ ΐ' / is started from the protruding portion of the drive shaft until the above-mentioned barrel The shape of the base: along the outer part of the front of the base body :: The special movement device, which is one of the cutting shaft, and the protrusion, and responds to the rotation of the drive shaft so that = f Rotating repeatedly within the range of the angle of the transmission shaft; The above-mentioned cutting shaft is installed on the above-mentioned cutting shaft, and the rotating rotation of the cutting shaft is repeated ^ ^ another 钿 邛, and corresponds to i 疋 轫Outward, in front of the above-mentioned needle drop position; a fixed cutter 'abuts against the movable cutter one, and the edge of the cloth fed into the above-mentioned needle drop position is cut. " μ Will enter into the sewing machine with a cutter as described in item 1 above, the drive shaft of the wheel ', and the thread protrusions that are also placed on the outside of the above base body. 2 顼 以 之右 # 初 机 二 Which of the above transmissions is more? Including the second shell ... One, with a guillotine, is fitted and supported on a part of the drive shaft; the end connected to the above heart is fitted to the cutter shaft, and the other end is 2098-3991- PF.ptd Page 19 »i 522190 · Sixth, the scope of application for a patent change device is used to change the connecting part of the above-mentioned eccentric ring of the transmission rod to the long axis direction of the transmission rod. ΙΙΒΙΙΙ 2098-3991-PF.ptd Page 20