TW494157B - Sewing machine - Google Patents

Abstract

The purpose of the present invention is to provide a sewing machine which has an arrangement to impart a variable feed length to a fabric to be sewn with lower cost of parts, and which can adjust the swing width of both a main feed dog and a sub feed dog independently and have a larger differential ratio to each other. A sewing machine with a main feed dog 3 and a sub feed dog 5 comprising: a swing mechanism to convert the rotating movement of a main shaft 1 to the swing movement of a swing member 11; a first link mechanism 16 to transmit the swing movement of said swing member to said main feed dog via a first swing lever 15; a first adjustment mechanism to be able to adjust the position of the axis of a first rotating shaft b1 functioning as the center of the swing movement of said first swing lever, the swing width of said main feed dog being variable with the adjustment of the position of said first rotating shaft; a second link mechanism 23 to transmit the swing movement of said swing member to said sub feed dog via a second swing lever 25; and a second adjustment mechanism to be able to adjust the position of the axis of a second rotating shaft b2 functioning as the center of the swing movement of said second lever, the swing width of said sub feed dog being variable with the adjustment of the position of said second rotating shaft.

Description

A7 V. Description of the invention (i. Field of the invention to which the invention belongs The present invention relates to sewing and cutting machines with cloth feeding teeth that perform the feeding of the material to be sewn, and in particular to the feeding of the material with the active implementation of the material to be sewn. The main feeding teeth and auxiliary sewing machine implements the feeding of the sewing object and the auxiliary feeding teeth of the sewing machine. Known skill sheet General The feeding motion of the cloth feeding teeth of the initial sewing machine is to feed synthetically to the cloth The movement in the forward and backward directions is achieved with the elliptical movement of the upward and downward swing movements. The amount of swing in the forward and backward directions (correctly the amount of swing in the other direction on the needle plate) becomes the cloth feed amount. Then, the cloth feeding teeth of the main and vice mentioned above are arranged in the cloth feeding direction and the back and forth directions are set, and the shaking amount of the front and back directions of the two sides is set, that is, the cloth feeding amounts are set differently from each other. One side is extended or shortened. The sewing object can be sewn on one side. In the past, the main feed tooth's swinging motion in the front and back direction was the turning motion of the main shaft of the sewing machine by the eccentricity of the cam and the like, and the mechanism was converted into a swinging motion. Moreover, the auxiliary feed Tooth swinging in front and back direction is a rocking motion that follows the linking motion printed on the tooth or its rocking mechanism by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. In the sewing machine with the aforementioned main and auxiliary feed teeth When adjusting the cloth feed amount of the main feed tooth, it is achieved by adjusting the eccentricity of the aforementioned eccentric mechanism. When adjusting the feed amount of the sub cloth, it is used to adjust the transmission amount of the main feed tooth or the link mechanism between it and its swing mechanism. The problem to be solved by the invention is on the sewing machine with the aforementioned main and auxiliary feed teeth, due to the shaking of the auxiliary feed teeth [paper size applies to Chinese National Standards (CNS) 4. Central Standards Bureau of the Ministry of Economic Affairs-Industrial and Consumer Cooperatives Printed 494157

、 Explanation of the invention: The direct link between the main feed and the swing mechanism of the main feed, when changing the feed amount of the main feed teeth, even the feed amount of the sub feed teeth will be changed year-on-year. The differential ratio of the feed teeth and the auxiliary feed teeth (the ratio of the two feed settings) has a problem that the range of the differential ratio is not as large as b. That is, because the shaking of the auxiliary feed teeth and the shaking of the main feed teeth are not independent, the feed amount of the main and auxiliary feed teeth cannot be set separately, and the main feed cannot be set. Various feed ratio settings such as the minimum feed amount of the auxiliary feed teeth or the opposite setting. In order to solve the foregoing problems, the present invention provides a structure that achieves a variable amount of cloth feed tooth swing with inexpensive parts. 1. It is easy to adjust the cloth feed tooth shake s1, and the main feed tooth can be freely adjusted. After the movement is different from the auxiliary feed tooth, the sewing machine can obtain the amplitude A of the differential ratio. Method for solving the problem In order to solve the aforementioned problem, the invention of the item i in the scope of patent application is to have the main feed tooth of the active feed stitch and the auxiliary feed tooth of the auxiliary feed, Contains:

A rocking mechanism for converting the rotary motion of the main shaft of the sewing machine into the rocking motion of the rocking body; and W a first link mechanism 'for transmitting the rocking motion of the aforementioned moving body to the main input via the first rocking lever Tooth-giving; a first adjusting mechanism for adjusting the position of the first rotating shaft which is the center of the rocking movement of the first rocking lever; a second link mechanism for rocking the foregoing through the second rocking lever Standard paper size ^^ 家 标 洋

V. Description of the invention (3 The rocking motion is transmitted to the aforementioned auxiliary feed teeth;-the second adjusting mechanism is used to adjust the position of the second rotating shaft as the aforementioned rocking motion of the second rocking lever; ^ The position of the rotation axis makes the main feed tooth forward and backward = the amount is variable, so as to adjust the position of the aforementioned second rotation axis so that the month of the auxiliary feed tooth, the amount of movement after J is variable. With the first scope of the patent scope of this application The inventor of the item can simplify the structure of the 'back movement' before and after changing the main feed teeth and the auxiliary feed teeth at low cost. Furthermore, 'because the adjustment mechanism of the movement amount of the front and back movements of the main feed teeth and the auxiliary movement, the amount of tooth swing The adjustment mechanism is independent, so that the main amount of the main feed and the sub-feed can be freely selected from each other, and the differential ratio between the feed and the sub-feed can be greatly obtained. The forward and backward movement amount valleys of the feed teeth or auxiliary feed teeth are set independently from the positive and negative directions, so the cloth feed direction of the main feed can also be set to a positive direction and the cloth feed direction of the auxiliary feed can be reversed. The amount can also The amount of winter sports becomes positive and the amount of movement of the auxiliary feed teeth before and after becomes negative. The feed pitch of the cloth becomes smaller and the stretch of the cloth becomes larger. According to the inventors, the first operation part or the second operation part is operated, Just in the sewing! The cloth feed amount of the main and auxiliary feeds can be changed. Therefore, during the sewing process, the feed pitch can be made larger and smaller, the cloth stretch can be made larger and smaller, and the fabric can be shortened and enlarged. In addition, the aforementioned i-th operation part and the second operation part are A, which can be operated by hand? A lever or dial can also be operated, and a pedal that can be operated by feet can also be used: This paper is also suitable for use. China Α7

The second invention of jnr is in the patent application _ = Pain: It has the connection between the i-th operation part and the second operation part. The operation principle of the i-th operation part and the second-operation part is described in “Heartwork” — Both of them are operated in a linked manner, and a structure that changes the movement amount of the main feed tooth and the engraved feed tooth before and after the Π is sewed during sewing. The inventor of item 2 of the scope of patent of this application needs to change the main feeding teeth and material feeding teeth during sewing. Therefore, the operability is good. "The so-called compression seam is used. The so-called compression seam is for those who start and retract needles with a small pitch in order to prevent flaring. The invention for item 3 of the patent application scope is in the patent application scope. The sewing machine of any one of item 丨 item 2 is made into a sleeve machine such as a double-ring sleeve machine, which has an animation elliptical track in the direction of the cloth feed direction, which is orthogonal to the direction. The shaking motion of the body leads to the structure of the connecting rod mechanism for the shaking motion of the cloth feeding direction of the set. Printed by the Central Standards Bureau of the Ministry of Economic Affairs—Industrial and Consumer Cooperatives. Feeding direction animation animation of the sleeve machine with circular trajectory. The piping machine is equipped with an eccentric mechanism. The rotation motion of the independent axis is derived from the swing movement of the sleeve machine in the feeding direction. The inventor of item 5 of the patent, because the source of the rocking motion of the aforementioned link mechanism in the clear direction is used to feed the material and apply it, so that the overall manufacturing cost of the sewing machine can be reduced. the following, The embodiment of the present invention will be described with reference to the drawings of FIG. 1 to FIG. 6 ′ The sewing machine 100 according to this embodiment is an example in which the entire drawing is omitted, and the paper size is suitable for the national standard of China ((: NS) Λ4) (210X297 mm) 494157 A7 _____! Z____ 5. Description of the invention (5) Cut the cloth with a scalpel and sew the edge sewing machine at the same time. Figure 丨 shows the top view of the cloth feeding mechanism of the sewing machine. The sewing machine 100 according to this embodiment is provided with a double-thread quilting machine 64 (Fig. 7) for swinging the day-and-day ellipse trajectory between the needle and the needle to form a double-thread lock seam between the needles. Main spindle of sewing machine, 3 main feed teeth, 4 main feed rocker, 5 sub feed teeth, 6 sub feed rocker, 8 eccentric cam (eccentric), 9 feed Handle bar, 10 series feed shaft drive arm, "series is the feed shaft of the swinging body, G series is the main feed drive arm, 14 series is the swing lever drive link, 15 is the first swing lever, 16 is the swing lever drive company Lever, ^ 8 series main feed adjustment body, 19 series branch shaft, 20 series main feed adjustment link, 23 series auxiliary feed Drive arm, 24 series swing lever drive link, 25 series second swing lever, 26 series swing lever drive link, 28 series auxiliary feed adjustment body, 29 series support shaft, 30 series auxiliary feed adjustment link, 33 series The main feed adjustment axis, 34 is the auxiliary feed adjustment axis, 38 is the main feed lever of the first operation part, 39 is the main feed lock nut, and 41 is the sub feed lever of the second operation part. 42 series auxiliary feed lock nut, 44 series lock nut base. The eccentric cam 8, feed crank rod 9, feed shaft drive arm 10 and other connection structures are shown in the side section of the arrow A_A line in FIG. 2 Figure: The Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs prints the eccentric cam 8, the feed crank rod 9 and the feed shaft drive arm 10, and the person who constitutes the swing mechanism that converts the rotary motion to the swing motion becomes The rotary motion is converted into a swing motion and transmitted to the feed shaft 11 of the swing body. The feed crank rod 9 is rotatably connected to the pin shaft a1 of the feed shaft drive arm 10. Furthermore, here, a shaft (feed shaft 11) is used as a swinging body.

------- ιί installed! (Please read the page on the back W n 1-Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 494157

The binary system is not limited to the arm that pivots on the shaft's fulcrum or the π block on ㈣4, etc. The constituent of the swing can also use anything. As shown in Fig. 3, as a structure for moving the main feed tooth 3, the main is shown: the tooth feed 3, the rocking lever 15 is about 15 'the main feed adjustment shaft, the main feed drive shaft is said ... the main feed adjustment shaft 33, the main shaft Side cross-sectional view of the arrow BB line of the continuous structure of the feed adjustment ㈣, the main feed adjustment Dazhi 20 and the like. The main feed rocking of the main feed tooth 3 is stopped. The lever 4 is provided with guide grooves 4a and 4b extending in the front and rear directions of the sewing machine (upward and downward directions in Fig. 3) at the rear end portion of the center plate. The guide groove 中央 in the central part is fixed to the main shaft R of the sewing machine. The eccentric U is slidably fitted in the forward and backward direction by the square stopper 52. The guide groove 4b at the rear part is fixed to the rocker of the machine frame. The support shaft 嵌合 is slidably fitted in the front-rear direction by a square stopper. With this configuration, as the main shaft 1 of the sewing machine is rotated, the main rocker lever 4 of the eccentric wheel 13 is swung in the up-down direction (left-right direction in Fig. 3) of the sewing machine. θ The main feed drive arm 13 and the swing lever drive link 14 ′ are first! The swing motion of the rocker lever 11 is changed to the first link mechanism of the forward and backward motion of the main feed rocker lever 4. In all the components, the rocking lever drives the connecting rod 14, and the first rocking lever drives the connecting rod 16 to be rotationally connected by the correcting material. Rocker lever = The moving link 16 is connected to the main feed rocker lever 4 at the other end of the pin & The ^ th rocking lever 15 is held in a state of being able to be rotated in a fixed [three] th position, so that the motion of the P-link mechanism is determined = it becomes the main feed rocker 4 and the main feed Tooth 3 is shaken forward and backward. Cheng: The first of the center of rotation of the first swinging lever 15! The rotation axis bi can be adjusted. The paper size applies the home standard (CNiyx4_ size (210x297g)

9 Set 'Changing this position as described later changes the amount of movement of the first link mechanism. The rocker driving link 16 is connected to the main feed rocker 4 at the other end of the pin a5. The main feed adjusting body 18, the main feed adjusting link 20, the main feed adjusting arm 36, the main feed adjusting shaft 33, and the main feed lever 38 (FIG. [FIG. Position 丨 adjuster. The main feed adjusting body 18 is a triangle-shaped member, and the central corner is supported by a support shaft 19 (Fig. 丨) that is fixed to the i-frame and the corner is pin A7. The first rotation axis b 1 is connected to the main feed adjustment link 20 and is held at the corner of the other end. The main feed adjustment shaft 33 is rotatably supported by the frame, and the main feed adjustment shaft 36 is fixed at the base end to the aforementioned main feed adjustment shaft%, and the front end is rotatably connected to the aforementioned main feed with a pin a9. Give the adjusting link 20 the other end. The base end of the main feed ability 38 is fixed to the main feed adjustment shaft%, the front end is located outside the sewing frame, and the main feed adjustment shaft 3 3 can be manually rotated between the upper and lower sections. The main feed lever 38 is moved from the upper section side to the lower section side, and the main feed adjustment arm 36 fixed to the aforementioned main feed adjustment shaft 33 is rotated in a clockwise direction (Figures 3 and 5). The feed adjustment link 20 is moved to the right in FIG. 3, and the main feed adjustment body 18 is pivoted to the clockwise direction in FIG. 3 as the center of the aforementioned support shaft 19, and thus the first rotation axis M becomes located at Clockwise direction. Therefore, when the first rocking lever 15 which is linked to the feed shaft 11 and the first rotation axis bl is swiveled, the rocking position of the pin a4 of the front end of the rocking lever 15 is right! The axis of rotation "close to the horizontal direction, the first shake, description of the invention (8) Figure 3 of the rocking movement of the lever 15 in the up and down direction (the front and rear of the main feed tooth 3, the component, that is, the cloth feed amount) will become larger On the other hand, moving the main feed lever from the lower section side to the upper section side, contrary to the above, 'the swing position of the pin a4 of the front end of the first swing lever 15 is close to the first rotation axis b1 in the vertical direction. 3, the component in the up-down direction (feeding amount) will become smaller. Furthermore, in this embodiment, the main feed lever 38 is located at the middle position between the upper and lower sections, and the aforementioned up-down component of the first swinging lever 15 will become 0. As the ground is set, the feed amount becomes 0 mm at this position, and the feed feed amount is set to [10 mm] when the main feed rod 38 is at the lowest stage. When the upper stage is created, the pin The swing position of a4 passes the aforementioned 丨 rotation axis M to the left of Figure 3, and the phase of the swing is reversed by 180 degrees. The feed amount will be set to "qmm", that is, it will be set to the reverse feed position. As shown in Fig. 4 *, as the structure for moving the auxiliary feed teeth 5, the field J feed teeth 5 'in the Θ' 2nd swing lever 25, the auxiliary feed adjusting body 28, and the auxiliary feed driving arm 23 are shown. Auxiliary feed adjustment shaft 34; auxiliary feed adjustment arm m, feed adjustment link 30, etc., continuous view of the arrow W line side sectional view / the structure that makes the auxiliary feed teeth 5 act and the main feed teeth 3 that act The structure is roughly the same. ° The auxiliary feed rocker 6 is attached to the auxiliary feed tooth 5 of the stopper, and it is more and more in the central part = don't set to extend in the direction of the sewing machine before and after (up and down direction in Fig. 4): "" 6b. The guide groove is fixed to the main axis of the sewing machine, and the eccentric wheel lb is printed to the aforementioned 494157 by the aforementioned up-and-down feed reading to the aforementioned 494157 Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. 5. Description of the invention (9) is slidably fitted to the The guide groove 6b at the rear end is fixed to the year of the rocker lever support shaft 54 of the machine year, and is slidably fitted forward and backward by a square stopper. This structure is formed as the main w of the sewing machine rotates with the aforementioned eccentricity. Wheel ^ The aforesaid auxiliary rocking lever 6 is rocked up and down in the sewing machine (left and right directions in Fig. 4). The auxiliary feed driving arm 23, the rocking lever driving link 24, and the second rocking loss lever 25 'rocking lever driving link. The addition system constitutes the first company to transmit the swinging motion of the feed shaft u to the auxiliary feed rocker 6. Among these components, the rocker crossbar drive link 24, the second rocker lever 25 and the rocker bar drive company The poles are rotatably connected by pins & 14. The second swing lever 25 is, It is held in a rotatable state on the fixed second rotating shaft b2, and it is constituted so that the motion of the second link mechanism is determined uniformly. The auxiliary feed rocker and the auxiliary feed teeth 5 swing forward and backward. The second rotation axis b2, which becomes the center of rotation of the battle lever, can be adjusted in its position. When the position is changed, the amount of transmission of the movement of the second link mechanism will change. The feed adjustment lever 30, the sub-feed adjustment arm 3J ', the sub-feed adjustment shaft 34, and the sub-feed lever 41 (1B [) constitute a second adjustment mechanism that can adjust the position of the aforementioned second rotation shaft b2. The auxiliary feed adjusting body 28 is a triangle-shaped member in a plane view, and the middle corner is rotatably supported on a support shaft 29 fixed to the frame, and the known angle is connected to the auxiliary feed by a pin al 7 Adjust the connecting rod to maintain the second rotation axis b2 at the corner of the other end. Tian J's feed and knuckle shaft 34 is rotatably supported by the frame, and the auxiliary feed adjustment I 37 疋 is fixed at the front end in the front end. Auxiliary feed adjustment axis%, front end can be central

Please read > Note-Item

Page Order 5 A7 — ___B7 Description of the Invention (10) Rotately connect pin a7 to the other end of the aforementioned auxiliary feed adjustment link 30. The base end of the auxiliary feed rod 41 is fixed to the aforementioned auxiliary feed adjusting shaft 34, and the front end is located outside the sewing machine frame, and the auxiliary feed adjusting shaft 34 can be manually rotated between the upper section and the lower section. The auxiliary feed lever 41 is moved from the upper side to the lower side, and the auxiliary feed adjustment arm 37 fixed to the aforementioned auxiliary feed adjustment shaft 34 is rotated in the clockwise direction (Figures 4 and 5). The adjusting link 3 is moved to the right in FIG. 4, and the auxiliary feed adjusting body 28 is rotated in the clockwise direction in FIG. 4 with the support shaft 29 as the center. Thus, the second rotation axis b2 will be positioned in the clockwise direction. . Therefore, when the second swinging lever 25 which is linked to the feed shaft 11 and the second rotation axis b2 is pivoted, the swing position of the pin & 14 at the front end of the second swinging lever 25 becomes the second rotation axis b2. Close to the horizontal direction, the component in the up and down direction (the component of the front and back direction of the auxiliary feed teeth 5, that is, the cloth feed amount) in FIG. 4 of the rocking motion of the second rocking lever 25 becomes larger. On the other hand, when the sub-feed lever 41 is moved from the lower side to the upper side, as opposed to the foregoing, the swing position of the pin al4 at the front end of the second swing lever 25 is close to the second rotation axis b2 in the vertical direction. The component (cloth feed amount) in the up and down direction of Figure 4 becomes smaller. Printed by the Consumers ’Cooperative of the Central Government Bureau of the Ministry of Economic Affairs. In this embodiment, the sub-feed lever 41 is set to an intermediate position between the upper and lower stages, and the aforementioned up-and-down component of the second swinging lever 25 will become 0. Therefore, At this position, the feed amount will be 0 mm, and the feed amount will be set to r 丨 min when the sub-feed lever 41 is used as the lowest stage. As the uppermost stage, the swing position of the pin al4 goes beyond the second rotation axis b2 to the left of the fourth figure, and the phase of the swing is reversed by 180 degrees. The feed rate will become "_lmm 13 This paper size is suitable for the family standard. (CNS) A4 specifications (21 () χ297 male sauce) A7 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs

Description of the invention (_ After the main feed lever 38 is at the rear end side, the front lever side is pushed down. Also, the main feed lock nut 44 is released and the auxiliary feed lever is stopped at the main feed When the lever ^ is formed, the main feed lever 38 and the auxiliary feed lever 41 lift their rear end sides upward, and press the front lever side upward. Furthermore, the aforementioned pedal connection locking hole 38c is used to thereby Connection chain 40C Connection pedal 40B. With the operator depressing the pedal 40B or opening it, the main feed 椁 38 can be operated up and down (the auxiliary feed lever stops at the main feed lever, and the auxiliary feed The feed lever 41 is also used together.), The auxiliary feed lever 41 is the position adjuster of the second rotation shaft b2 that operates as described above, and stops at the auxiliary feed adjustment shaft 34, and can rotate with the shaft as the center. The auxiliary feed lever 41 ^ stops the auxiliary feed lock screw 成为 and becomes the position of ^ (when the main feed lever 38 is fixed). The auxiliary feed lock nut ^ The main feed lever% is sandwiched between the feed lock nuts 42 and becomes the stopper main feed lever 38 and the auxiliary feed lever q, constituting a connecting device for connecting the main feed lever and the auxiliary feed lever. In addition, when the auxiliary feed lever 41 is provided with rotation, the large release groove of the lock nut base 44 is released when the auxiliary feed lever 41 is turned. That is, the main feed lever becomes the lock main feed lock nut 39. The stopper is ^, and the secondary feed lock nut 42 is locked to lock the primary feed and the secondary feed # 4. Also, it becomes a lock screw that does not lock both sides, as if the primary feed lever 38 is fixed. And the auxiliary feed lever 41. If the feed lock nut 42 becomes the feed field and the main feed lock nut is loosened, the main feed lever 38 and the auxiliary feed lever 41 can be moved. 'As the adjustment operation, the main feed tooth 3 and the auxiliary feed tooth 5 are shaken. (Please read the precautions of the meeting before this page.) Order-line. Central Standards Bureau of the Ministry of Economic Affairs-Industrial and Consumer Cooperatives printed 15 Ministry of Economic Affairs Printed by the Consumer Standards Cooperative of the Central Bureau of Standards 5. Description of the invention (13 = Operation section 'shows the main feed 38 and the sub feed lever 41, but it is not limited to this. For example, it can also be made in the form of using a dial. Also, The main feed adjustment shaft 33 and the auxiliary feed adjustment are provided in the same way as above. It is approximately the same shape and the same size. Therefore, the relationship between the rotation position of the rod and the amount of rocking of the teeth becomes the same as the thing of the main feed tooth 3 and the thing of the auxiliary feed tooth 5. Also, the main feed The relationship between the position of the tooth 3 and the object of the sub-feed tooth 5 is different. The relationship between the rotation position of the lever and the amount of swing of the feed tooth is appropriately set. Fig. 7 is used to explain the forward and backward movement of the double-line lock socket machine 64.模式 is a side view of the model, 截面 is a cross-sectional view of the arrow DD line of ⑷. The double-line locking sleeve machine 64 is a person who moves forward and backward and left and right to animate the elliptical trajectory to the cloth feed direction, and transmits it by independent mechanisms Later motion and left-right motion. The left-right motion is omitted from the illustration. As before, the four-rotation motion of the main shaft i is transformed into the rocking motion of the axis orthogonal to the main shaft 1. From the rocking motion of the axis, V 3- The forward-backward movement of the wire-lock cuffing machine 64 is guided by the pivoting motion of the main axis of the main feed driving arm 13 through the feed axis of the front-rear direction of the cloth feed from the lead-out cloth. The structure of the link mechanism that guides the swinging motion of the feed shaft 11 and the main feed drive arm 13 to the double-line lock socket machine 64 is, for example, as shown in FIG. It is composed of a double ring shaft 62, a bearing 63, a member 61, and the like. The bearing 63 is movable in the left-right direction and swings in the left-right direction. The sliding member 61 can be slid forward-back, and the heavy ring shaft 62 can be inserted into the bearing 0 in a rotating and rotating manner, so that the sliding member's return does not slide.

Please read the notes of I Note

Order and description of the invention (14 Printed by the Central Bureau of Standards of the Ministry of Industry, Industrial and Commercial Cooperatives, $ 1 61 This double ring is connected to the main feed drive material 13. Also, it is a swinging double-line lock socket machine 64 that becomes the main feed drive arm 13. Shake the sewing machine 100 of this embodiment forward and backward as described above, and operate the main feed rod 38 and the feed rod 4 as described below to independently adjust the feed pitch of the main feed ^ and the feed of the feed tooth 5. The tooth pitch will be driven by the sewing feed, and the main feed tooth 3 or the auxiliary feed tooth 5 will move with the withered feed pitch. That is, for example, the implementation of continuous sewing with knitting or knitting materials, etc. During cloth stitching, 'main feed lever 38 is positioned at the middle & feed lever 41 is positioned at the lower stage. For example, the feed pitch of the main feed tooth 3 is set to "2", and the auxiliary feed tooth 5 = The feed pitch is set to "8mm? The differential ratio is" n 4 ", which can make a larger crepe than before. In addition, when performing a stretch stitch for the purpose of preventing wrinkles, etc., the main feed rod 38 is located in the middle and lower section. And the auxiliary feed rod 41 is located at the upper stage, for example, the feed pitch of the main feed tooth 3 is set to "4mm", and the feed pitch of the auxiliary feed tooth 5 is set It is "Omm". When reducing the overall feed pitch and performing the stretch seam, the feed rod 38 is positioned at the upper middle position and the auxiliary feed rod 41 is positioned at the upper position. The feed pitch is set to "lmm" and the feed pitch of the auxiliary feed tooth 5 is set to "-0.5mm". Furthermore, the main feed lock nut 39 and the auxiliary feed lock nut are locked. The cap 42 completes the setting adjustment of the feed amount. Furthermore, the setting adjustment of the cloth feed is not limited to the aforementioned feed because the adjustment mechanisms of the main feed tooth 3 and the auxiliary feed tooth 5 are independent and can be combined and set. Adjust the main amount, please read the precautions on the back before iPF this page) _ Binding · Thread 17 V. Description of the invention (15) Then, make the sewing machine 100 drive the spindle, and the rotary motion will be advanced. The eccentric cam 8 or the feed crank rod 9 is transformed into a certain amount of rocking motion and transmitted to the feed shaft 11 and the feed shaft 11 performs a rocking motion, and the rocking motion is then provided by the [linkage mechanism (main feed drive arm U The rocking lever driving link 14 and the rocking lever driving link 16) are transmitted to the main feed rocker 4 and the transmission, The m feed lever 38 is set to a swing amount of 疋, and the main feed rocker 4 is moved forward and backward. Furthermore, when the main shaft i rotates and the up-and-down side loader 52 is swung up and down, the main feed lever 4 will move up and down. Similarly, the feed shaft u performs a rocking motion, and the rocking motion is transmitted to the auxiliary feed rocker 6 by the second link machine to feed the feed arm 23, rock the lever ㈣ link μ, and the rocker drive link 26). With this transmission, the auxiliary feed rocking lever 6 swings forward and backward with the swing amount set by the auxiliary feed lever 41. Furthermore, the "spindle 1 rotates" the up-and-down feed block 52 is swung up and down, so the auxiliary feed rocker 6 is moved up and down. = This' The main feed tooth 3 and the auxiliary feed tooth 5 are implemented in the upward, downward, forward and backward directions = movement, the sewing objects on the main feed tooth 3 and the auxiliary feed tooth 5: = the adjusted feed amount is sent to the front and rear Orientation, implementation of setting adjustment, 'worm cloth seam or stretch seam. 'The following is to adjust the main feed to the sewing order. The operation of the auxiliary feed is to sew up with a small pitch. In the sewing machine 100 of this embodiment, the lock nut 39 or the auxiliary feed lock _42 is used. 41 can also be used to apply agglomerative seams (to prevent blooming as a method of stitching and closing stitches). When performing agglutination, first, operate the main feed lever 38 and the auxiliary feed lever 41

-18. A7 • B7 Printed by the Consumers ’Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the Invention (1 / Γ) ~~ ---- 16 7 ♦ The amount of shaking of the main feed tooth 3 and the auxiliary feed tooth 5 And the differential ratio is set to a desired amount of the ordinary w distance ^. In addition, the locking auxiliary feed lock nut ^ stops the main feed lock 38 and the auxiliary feed lever 4 and the main feed lock nut is in a relaxed state outside, so that the overall feed pitch can be changed. Once the positions of the brakes 46a and 46b are adjusted, the fluctuation range of the overall feed pitch is adjusted. Since the main feed lever 38 and the auxiliary feed lever 41 are operated by the foot 40B, the main feed lever is connected to the brake bias, and Yang Zhi is ideal for sewing. ^ As mentioned above, the state of the main feed rod in accordance with the state of the through-return distance, the brake of one side will be against the lock nut base material to stop the brake 46b. #This setting of the position of the brake deflection will enable the operator to carry the cloth at a normal feed pitch with the foot released from the pedal 40B. Then, the other brake 46a is stopped in accordance with the feed pitch at the time of agglutination. That is, in a state where the main feed lever 38 is in accordance with the feed pitch at the time of agglutination, the brake 46a and the lock nut base 44 abut against the brake 46a. The position of the brake 46a is set as described above, and the cloth is conveyed with the pitch of the feed at the time of agglutination when the operator steps on the pedal most. In addition, since the needle pitch is made small for the purpose of preventing the yarn from being opened, the operator presses the pedal 40B at the maximum, that is, the sewing machine 100 is in the state where the sub-feed lever 41 is at the upper stage. drive. In this state, the sewing machine 100 is driven, and sewing is performed at a predetermined pitch, and sewing is performed at a predetermined length. To create an ordinary pitch, the operator releases his foot from the pedal 40B during sewing. The pedal 4〇b is opened, and the sub-feed # 41 is lowered to the preset value by the effect of the spring material 40A. The paper size applies the Chinese national standard (rNS) Λ4 specification (210X297 mm) (please read the fr side first) (Notes / Notes on this page)

1T 19 V. Description of the invention 17 A7 B7 The location of the printed section of the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Industry. I / Feed, " Yan 41 is lowered to the middle section, and the swing amount of the main feed tooth 3 and the swing of the auxiliary feed M are increased. The overall feed pitch is restored to the original pitch. Furthermore, sewing is performed with the feed pitch. I In the final stage of sewing, in order to prevent the reduction of yarn and m, ‘tooth giant again’ is the largest stepping pedal 40 A during sewing, and the auxiliary feed lever 41 is raised to the upper stage. When the feed rod 41 is lifted to the upper stage, the swing amount of the main feed tooth 3 and the auxiliary feed tooth 5 becomes smaller, and the overall feed pitch is changed to the preset feed pitch of the agglomeration joint (small pitch) ). Then, the sewing is finished with a predetermined length of sewing at the feed pitch. As described in the sewing machine 100 according to this embodiment, since the adjustment mechanism of the swing amount of the main feed tooth 3 and the adjustment mechanism of the swing amount of the sub feed tooth 5 are independent of each other, they become the main feed tooth 3. The selection of the amount of shaking and the amount of shaking of the auxiliary feed teeth 5 are freely selectable without interfering with each other. Therefore, the magnitude of the differential ratio between the main feed teeth 3 and the auxiliary feed teeth 5 can be set large. In addition, the variable swing amount of the main feed tooth 3 or the auxiliary feed tooth 5 is constituted by a first continuous cup mechanism (main feed drive arm J 3, swing lever drive link 14 'first swing lever 15' S The lever driving link lb) and the second link mechanism (the auxiliary driving arm 23 'rocking lever driving link 24, the second rocking lever, the rocking lever driving link 26), and, the first! The joint mechanism that rotates the position of #Ul (main feed adjustment body 18, main feed adjustment link 20, main feed, full arm 36, main feed adjustment shaft 33 and main feed lever 38) and the second adjustment The adjustment mechanism of the position of the rotation axis b2 (feeding mechanism), auxiliary feed adjustment link% adjustment Please read the back · 1¾ before you bind it, and then p page binding 'line 20 5 Central Standards Bureau of the Ministry of Economic Affairs System A7 --_____ B7 V. Description of the invention (18) First, the auxiliary feed adjustment arm 37 '(the auxiliary feed adjustment shaft 34 and the auxiliary feed lever 41) are constituted. The structure can be made cheap and simple. Furthermore, by operating the main feed lever 38 or the auxiliary feed lever 41, the feed amounts of the main feed teeth 3 and the auxiliary feed teeth 5 can be changed during sewing, so that during the sewing process, the feed amount can be increased. Reduce the feed tooth pitch, increase and decrease the stretch of the cloth, and increase and decrease the shrinkage of the cloth. In addition, the "locking auxiliary feeding nut 42" loosens the main feeding locking nut 39 and can stop the main feeding lever 38 and the auxiliary feeding lever 41 from being driven together. Therefore, it can be operated to produce a good overall change. The cloth feed. Therefore, it is not necessary to implement a particularly complicated device to implement an agglutination joint or the like. Furthermore, since the cloth feed material and the double-thread lock-sleeve machine 64 are both used as the derivation source of the rocking motion in the cloth feed direction, the overall manufacturing cost of the sewing machine 100 can be reduced. Furthermore, the present invention is not limited to the sewing machine 100 of the present embodiment. For example, the type of the sewing machine is not limited to a sleeve sewing machine, and any sewing machine having a cloth feed sewing machine can be applied. In addition, the swing motion of the feed axis u is transmitted to the main link tooth 3 or the auxiliary feed tooth 5 of the 丨 link mechanism or the second talent mechanism structure, etc., the detailed structure of the specific display is inconvenient The scope of the present invention can be changed as appropriate. Effects of the Invention The inventor of the scope of patent application No. 1 can change the amount of movement of the main feed tooth and the auxiliary feed tooth before and after, and can be simplified and inexpensive. Moreover, due to the adjustment mechanism of the forward and backward movement amount of the main feed teeth and the auxiliary feed size of the paper 谝) Λ4 specification (“plus public hair”) (please read the “Notes on the t side first”: this page}

1T line

-— I—-II-i I 21 A7 • B7 V. Description of the invention (19) The adjustment mechanisms of the forward and backward movement of the teeth are independent of each other. It can be freely selected without interference. It can be set large; the magnitude of the differential ratio between the main feed and the sub feed. And the motion amount of the main feed tooth or the auxiliary feed tooth can be set independently in the positive and negative directions. Therefore, the cloth feed direction of the main feed tooth can also be set in the positive direction and the cloth of the sub feed tooth. The feed direction is set in the reverse direction. From this, for example, the amount of forward and backward movement of the main feed teeth can be made into a small pair. The amount of forward and backward movement of the teeth can be made negative ', the feed pitch of the cloth can be made small, and the stretch of the cloth can be made large. Furthermore, with the inventor of the patent application No. 丨, using the operation part or the second operation part, the feed amount of the main feed tooth and the sub feed tooth can be changed during sewing. Therefore, during the sewing process, the feed pitch can be made larger or smaller, the cloth can be stretched to be larger or smaller, and the cloth i can be made larger or smaller for the inventor who applied for the second item in the patent scope. When the feed amount of both the main feed tooth and the auxiliary feed tooth is changed, the operability improves. Therefore, a so-called agglutination seam can be implemented with no operable device or mechanism and good operability. The inventor of item 3 of the patent application, because of the aforementioned link mechanism, = the V-out source of the rocking motion of the cloth feeding direction and the cloth feeding machine's material can be used to achieve the comprehensiveness of the sewing city Reduced manufacturing costs. Brief Description of the Drawings Fig. 1 is a top view showing a mechanism part of a cloth feed of a sewing machine according to an embodiment of the present invention. ) This paper is made with towel _ _f

Description of the invention (20 Fig. 2 is the structure of Fig. 1 shows the eccentric cam 8, the feed curve, the feed ': the side view of the continuous structure of the shaft drive arm 10 and so on. A side view of the arrow BB line showing the structure for operating the main feed tooth 3 in the configuration. W FIG. 4 is a side view of the arrow CC line showing the structure for operating the sub feed tooth 5 in the configuration of FIG. 1. FIG. 5 FIG. 1 is a left side view showing the structure of the operation part for adjusting the swing amount of the main feed tooth 3 or the auxiliary feed tooth 5 in the configuration of FIG. 1. FIG. 6 shows the operation part of FIG. 5 connected to the pedal. The side view of the structure. Fig. 7 shows the outline of the swinging mechanism of the sleeve feeding machine in the feeding direction. "U) is its side view, which is a sectional view taken along the line d_D of (a). Please read it before > i · Italian items and then m. This page is bound to print this paper-size paper towel, H mesh home transfer U ^ NS) (210X 297 ^ t) ·-- -23 494157 Α7 • B7 V. Description of the invention (21 Component number comparison 28 ... Sub-feed adjustment body 29 ... Support shaft 30 ... Sub-feed adjustment link 33 ... Main feed adjustment shaft 34 ... Sub-feed adjustment shaft 36 ... main feed adjustment arm 37 ... sub feed adjustment arm 3 8 ... as the main feed lever 38a of the first operation section ... extend the arm 38b ... the release groove 38c ... the locking hole 38d for the pedal connection ... the spring With the locking hole 39 ... Main feed lock nut 40a ... Spring material% 40b ... The main shaft of the sewing machine printed by the clamping rate bureau in the pedal department of the Ministry of Economic Affairs and Consumer Cooperatives •• The main feed of the eccentric wheel Rocker lever, 4b, 6a, 6b. &Quot; Guide groove. Secondary feed tooth ', secondary feed rocker, eccentric cam feed, crank rod, feed shaft drive arm, feed shaft of the main shaft, rocker lever drive Link 1st rocking lever rocking lever drive link main feed adjustment body support shaft main feed adjustment link Feed drive arm rocker lever drive link •• 2nd rocker lever •• rocker drive link lb 3 ·· 4 ·· 4a 5 ·· 6 · 8 ·· 9 ·· 10 11 13 14 15 16 18 19 20 23 24 25 26 41 ... As the auxiliary feed lever 41a of the second operation part ...

42 ... Sub-feed lock nut 44 ... Lock nut base 46a'46b ... Brake 52 ... Square stop 54 ... Swing lever support shaft This paper ruler (· 2Γ〇; .297 公 F 24 494157 A7 B7 V. Description of the invention (22 61 ... sliding member 62 ... double ring shaft (6 3 ... bearing 64 ... double wire lock sleeve mouth machine printed by the Central Standards Bureau Ordnance Industry Consumer Cooperative Co., Ltd. 100 ... , A4, a5, a9, al4, al7 ... pin b 1 ... the first rotation axis b2 ... the second rotation axis This paper size applies the Chinese national standard (rNS) Λ4 specification (210X 297 mm) 25

Claims (1)

494157 871 10 δ 99 A8 B8 C8 D8 Member of the scope of patent application1. A sewing machine with active feed teeth for the main object and auxiliary feed teeth for the auxiliary object, its characteristics It includes: a rocking mechanism for converting the rotary motion of the main shaft of the sewing machine into the rocking motion of the rocking body; and a first link mechanism for transmitting the rocking motion of the rocking body through the first rocking lever To the main feed tooth of the air, forming forward and backward movement; a first adjustment mechanism 'adjusts the position of the first rotation axis which is the center of the rocking movement of the first rocking lever; a second link mechanism' is used to pass The second swinging lever transmits the swinging motion of the swinging body to the auxiliary feed teeth to form a forward-backward motion; a second adjustment mechanism 'adjusts the position of the second rotation axis that is the center of the swinging motion of the second swinging lever; And adjust the position of the first rotation axis to make the main feed tooth's back and forth movement amount variable to adjust the position of the second rotation axis to make the auxiliary feed tooth's back and forth motion amount variable; and The first adjustment mechanism can be operated during sewing. The fourth operation is different from the second adjustment mechanism. The second operation can be operated during sewing. ’, In this way, the first operation can be adjusted by operating the first operation! Turning the position of = 'and # as the second operation part can adjust the position of the aforementioned second shaft. 72. = No. Of patent application scope! The item sewing machine is characterized in that it includes a continuous connection of the difference between the operation amount of the first operation part and the second operation part, which is described in the item page 26 494157. The scope of the patent application is based on the operation of the aforementioned } Both the operation section and Renlu ~ P of the second operation section can operate in an interlocked manner, so that the amount of movement of the main feed teeth and the auxiliary feed ㈣ can be changed simultaneously. 5 · The quilting, knives, as described in item 1 of the patent application scope, are characterized by including the mouth-feeding machine in the feeding direction and the direction of the mouth · Baiyi + elliptical trajectory: mouth-machine, and The linking mechanism of the swinging movement of the cloth feeding direction of the sleeve is derived from the swinging movement of the swinging body. Printed by the Consumers' Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs This paper is sized to the Chinese National Standard (CNS) A4 (210X297 mm) 27