JP2011245092A - Sewing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sewing machine capable of making a thread seam cause the feeling of conformity and warmth.SOLUTION: The sewing machine includes: a needle bar 11 to which a needle 12 can be attached; a control device which can control a feed amount of a sewing object in the feeding direction and a wobbling width of the needle 12 relative to the sewing object in the direction orthogonal to the feeding direction; and a good badness selection element 10 which outputs a command to execute a good badness mode adjusting the degree of the skill in making a thread seam of the object to the control device. The good/bad selection element 10 sets the wobbling width of the needle 12 and the feed amount of the sewing object as set values respectively, and outputs a command to vary at least one of the wobbling width and the feeding amount for the set value to the control device.

Description

  The present invention relates to a sewing machine having a needle bar to which a needle can be attached.

  Conventionally, variations in the stitch control amount of the sewing machine, for example, variations in the cloth feed amount are set to 0 (zero) so that a constant cloth feed amount can be obtained. However, the stitches obtained as a result are stitches that are orderly but feel the mechanical and uniform hardness and coldness characteristic of mechanical sewing. As a measure for eliminating such mechanical hardness and coldness, there has been proposed a method technique in which the variation in the stitch control amount of the sewing machine is 1 / f fluctuation (Patent Document 1). In this method technique, the power spectrum of the variation in the control amount of the stitches sewn by the sewing machine shows a tendency of 1 / f. It is said that a seam that feels a kind of comfort and warmth can be obtained.

JP-A-4-79982

  However, according to the method technique according to Patent Document 1, a very complicated calculation is required to obtain a numerical value representing 1 / f. In this case, since the calculation is complicated, the sewing speed may be limited. The present invention has been made in view of the above-described circumstances, and a sewing machine capable of providing a seam that can feel comfort and warmness without requiring extremely complicated calculation until a numerical value representing 1 / f is obtained. The issue is to provide.

  The sewing machine according to the present invention includes: (i) a placement portion on which a sewing object is placed; (ii) a needle bar that can be raised and lowered with respect to the placement portion; and (iii) in a feeding direction. A sewing machine having a control device capable of controlling a feed amount of a sewing object and a relative swing amount of a needle with respect to the sewing object in a swing direction perpendicular to the feed direction, and (iv) a stitch of the sewing target object A saddle selection element is provided for outputting a command to execute a saddle mode to adjust the level of the lower hand and upper hand to the control device. The feed amount of the sewing object is set as a set value, and a command for varying at least one of the runout amount and the feed amount with respect to the set value is output to the control device.

  The spatula selection element outputs a command to execute a spatula mode for adjusting the degree of lower and upper hands at the stitches of the sewing object to the control device. The spatula selection element sets a needle swing amount and a feed amount of the sewing object as set values, respectively, and commands to vary at least one of the swing width amount and the feed amount with respect to the set value. Output to the control unit.

  As described above, during sewing, at least one of the runout amount and the feed amount varies with respect to the set value, so that a seam that can feel comfort and warmness is obtained instead of a mechanical and uniform seam. . Further, the spatula selection element is not a method that requires extremely complicated calculation until a numerical value representing 1 / f is obtained, but sets the amount of deflection of the needle and the amount of feed of the sewing object as set values. At the same time, at least one of the deflection amount and the feed amount is varied with respect to the set value. For this reason, an extremely complicated calculation is not performed, an extremely high performance computer and an extremely high performance memory are not required, and an inexpensive microcomputer and memory are sufficient.

  According to the sewing machine of the present invention, since at least one of the runout amount and the feed amount varies with respect to the set value during sewing, a seam that can feel comfort and warmth is obtained. In other words, it not only eliminates certain mechanical and uniform hardness and coldness unique to machine sewing, but it seems as if sewing beginners and children sewed by hand when the level of spatula is high. You can also show it. In other words, it is possible to form a seam that is positively shown to the “head”. Of course, when the degree of deliciousness is high, it can be seen as if a machine or a sewing expert has sewed it.

  Further, according to the sewing machine according to the present invention, the spatula selection element is not a method that requires extremely complicated calculation until a numerical value representing 1 / f is obtained. In this method, the amount is set as a set value, and at least one of the swing amount and the feed amount varies with respect to the set value. For this reason, an extremely complicated calculation is not performed, an extremely high performance computer and an extremely high performance memory are not required, and an inexpensive microcomputer and memory are sufficient.

It is a front view of a sewing machine. It is a perspective view near a needle plate. It is a block diagram of a control system. It is a figure which shows the seam of an applique pattern. It is a figure which shows the direction of feed and the direction of the width | variety in the stitch of an applique pattern. It is a figure which shows the data of the deflection width at the time of forming the stitch of an applique pattern. It is a figure which shows the feed data at the time of forming the stitch of an applique pattern. It is a flowchart which a control apparatus performs. It is a flowchart which a control apparatus performs. It is a general view which shows the internal structure of a sewing machine. It is a figure which shows notionally the feed mechanism of a feed dog. It is a figure which shows the state which formed the seam in each mode in spatula mode. It is a figure which shows the state which formed the seam in each mode in spatula mode. It is a figure which shows the state which formed the seam in each mode in spatula mode. It is a figure which shows the state which formed the seam in each mode in spatula mode. It is a figure which shows the state which formed the seam in each mode in spatula mode. It is a figure which shows the state which formed the seam in each mode in spatula mode. FIG. 10 is a front view of a sewing machine according to another embodiment. FIG. 11 is a rear view of a sewing machine according to another embodiment. FIG. 10 is a right side view of a sewing machine according to another embodiment. FIG. 11 is a left side view of a sewing machine according to another embodiment. FIG. 10 is a plan view of a sewing machine according to another embodiment. FIG. 10 is a bottom view of a sewing machine according to another embodiment. It is a figure which shows the 6th surface drawing of a sewing machine collectively concerning other embodiment.

  The placement portion may be any one on which a sewing object can be placed, and can be exemplified by a needle plate and a bed portion. The needle bar only needs to be provided so as to be able to move up and down with respect to the placement portion and to which the needle can be attached. The control device only needs to be able to control the feed amount of the sewing object such as the cloth in the feed direction and the relative swing width of the needle with respect to the sewing object in the direction orthogonal to the feed direction. The “relative deflection amount of the needle with respect to the sewing object” corresponds to the relative deflection amount of the sewing object and the needle. In this case, when the sewing object does not move in a direction orthogonal to the feed direction in plan view, it means the amount of deflection of the needle with respect to the sewing object. When the sewing object moves also in the direction orthogonal to the feed direction, the relative deflection amount of the needle with respect to the sewing object is set. The spatula selection element outputs a command to execute a spatula mode for adjusting the degree of lower and upper hands at the stitches of the sewing object to the control device. The spatula selection element sets a needle swing amount and a feed amount of the sewing object as set values, respectively, and commands to vary at least one of the swing width amount and the feed amount with respect to the set value. Output to the control unit.

  Preferably, the spatula selection element has a setting switch that is set by the user as a set value for the amount of deflection of the needle and the feed amount of the sewing object, and a spatula switch that selects the spatula mode. ing. In this case, the control device includes the setting value set by the setting switch when the nagging mode is selected by the spatula switch, and in the selected region near the setting value, At least one of them. In this case, a seam that can feel comfort and warmth is obtained. Preferably, in the spatula mode, the control device includes a set value related to a swing amount and / or a feed amount set by the setting switch, and sets a swing amount and / or a feed amount in a selection region near the set value. To disperse. In this case, it is possible to obtain a seam that makes the user feel comfortable and warm. More preferably, the control device selects a set value related to the swing amount and / or the feed amount set by the setting switch. As described above, even in the saddle mode, since there is a probability that the set value related to the swing amount and / or the feed amount set by the setting switch is selected, it is possible to prevent the stitches and the pattern from becoming abnormal.

  Preferably, in the spatula mode, the control device includes a width setting value related to the amount of vibration width set by the setting switch, varies the amount of vibration width in a wide selection region near the width setting value, and uses the setting switch to Contains the probability of selecting the set width setting. In this case, the spatula mode in which the swing amount is varied is executed. In this way, even in the saddle mode, there is a probability that the width setting value related to the amount of deflection set by the setting switch is selected, so that the stitches and the pattern are prevented from becoming abnormal. Preferably, in the spatula mode, the control device includes a feed setting value related to the feed amount set by the setting switch, varies the feed amount in a wide selection area near the feed setting value, and is set by the setting switch. Includes the probability of selecting a feed setting. In this case, the spatula mode in which the feed amount is varied is executed. In this way, even in the saddle mode, there is a probability that the width setting value related to the amount of deflection set by the setting switch is selected, so that the stitches and the pattern are prevented from becoming abnormal. Preferably, the spatula selection element is a fluctuation range variation mode in which the variation amount of the needle is varied without varying the feed amount, a variation amount mode in which the variation in the feed amount is performed without varying the variation range, It is possible to select a swing width / feed amount variation mode in which both the needle swing width and the feed amount are varied.

  Even when the navel mode is changed during sewing, the controller changes the mode selected by the navel selection element in one set of seams regardless of the operation of the navel selection element. Preferably not. In this way, regardless of the operation of the seam selection element, the mode selected by the seam selection element is not changed in the seam set selected by the pattern selection element. Is prevented from breaking, seams and patterns are prevented from becoming abnormal, and it is possible to prevent the user from knowing what the pattern is. In this case, when one set of seams is completed, it is preferable that the mode selected by the spatula selection element can be changed. One set of seams can be defined by a predetermined number of times that a needle pierces a sewing object such as a cloth. The predetermined number of times can be selected for each pattern from a range of 2 to 30 times, and can be appropriately set from a range of 2 to 20 times, a range of 2 to 10 times, and a range of 2 to 5 times.

  Preferably, in some cases, the control device can also change the mode selected by the spatula selection element within a set of seams. In this case, since the mode selected by the spatula selection element is changed in one set of seams, the degree of spatula increases, and there is a possibility that one set of seams may become an abnormal pattern, but comfort and warmth The possibility of obtaining a seam that can be felt is increased. Preferably, a pattern selection element for selecting a pattern to be sewn on the sewing object is provided. When the pattern selected by the pattern selection element is sewn, even when the spatula mode is changed, the control device does not change the pattern in one unit regardless of the operation of the spatula selection element. It is preferable not to change the mode selected by the spine selection element. In this way, regardless of the operation of the spatula selection element, the mode selected by the spatula selection element is not changed in one unit of the pattern selected by the pattern selection element. Can be prevented from breaking down, the pattern can be prevented from becoming abnormal, and it can be prevented from knowing what the pattern is. In this case, when one unit of the pattern is completed, it is preferable that the mode selected by the spatula selection element can be changed. One unit of pattern means a pattern that is not continuous with other patterns and can be physically distinguished from other patterns. For example, if the animal picture is a pattern that can be distinguished from other neighboring patterns, the animal picture can be made into one unit.

  Preferably, when the spatula mode is being executed, the control device can temporarily form a seam based on a set value by the setting element, and can execute the spatula mode otherwise. It is possible to prevent the balance from being lost in the middle, to prevent the seam or pattern from becoming abnormal, and to prevent the user from knowing what the pattern is. Preferably, when forming a sewing pattern by controlling the needle swing width and / or feed amount on the basis of sewing pattern data created in advance, the pattern data currently in use is based on a spade selection element. Thus, the swing amount and / or feed amount can be varied. In a general sewing machine, the user can adjust the setting of the swing amount and / or the feed amount. Since this setting value itself is changed, the change of the seam is easy to understand.

  Preferably, with respect to the swing amount and / or the feed amount, a method of randomly extracting one from a total of three set values such as (i) as set value, (ii) one stage before and after the set value (hereinafter referred to as “small variation mode”) (Iii), (iii) A configuration in which one set value is extracted at random (hereinafter referred to as “large variation mode”) from an area wider than (ii) (entire settable area). Can be adopted. Preferably, in the pattern data forming one pattern set with a plurality of stitches, the control device can extract a set value for the deflection amount and / or the feed amount for each set. This prevents the balance from being lost in the middle of the pattern, making the pattern abnormal and making it impossible to know what the pattern is. As a sewing machine, there is a case where a seam is shown in addition to sewing cloths. For example, when fastening a piece of cloth with an appliqué, the outer edge of the piece of cloth is sewn in a pattern (see FIG. 4) without one side of the ladder. In this case, depending on the application, this pattern is not a mechanical seam with zero variation as `` sewn with a machine '', but a seam that says `` I sewed with human hands, but it became irregular '' May be preferred in some cases. In this case, the “seam that has become irregularly positive”, that is, by showing the seam to the “heap”, there is an effect of warming the sewing object.

Preferably, the following forms can be adopted. For example, a method in which the user can change to (mode 0), (mode 1), (mode 2), (mode 3), (mode 4), (mode 5), and (mode 6) in the nausea mode by the nausea selection element can be adopted. .
(Mode 0) A mode that does not execute the squeeze mode and does not perform a variation (Mode 1) a mode in which only the swing amount is “small variation” (Mode 2) a mode in which only the swing amount is “large variation” ( Mode 3) Mode in which only the feed amount is “small variation” (Mode 4) Mode in which only the feed amount is “large variation” (Mode 5) Mode in which both the runout amount and the feed amount are “small variation” (Mode 6) ) Mode in which both the runout amount and the feed amount are “large variation” Thus, in one set of stitches of one pattern, a total of seven types of seam tastes (mode 0) to (mode 6) are produced. Thus, the presence of the nausea selection element eliminates the feeling of feeling of the desired pattern.

(Embodiment 1)
FIG. 1 shows a front view of a sewing machine according to Embodiment 1 of the present invention. As shown in FIG. 1, the sewing machine includes a sewing machine body 1 and a foot controller 20 that functions as an operation controller that can be attached to and detached from the sewing machine body 1. Further, a plug (not shown) provided at one end of the connection cord 25 of the foot controller 20 is detachably connected to a jack 100a provided at the lower part of the pedestal 3 in FIG. As shown in FIG. 1, the sewing machine body 1 includes a bed portion 2, a pedestal column portion 3 erected from the right end in FIG. 1 of the bed portion 2, and an upper surface 2 a of the bed portion 2 from the upper end side of the pedestal column portion 3. And an arm 4 extending facing each other. On the front surface of the head 5 of the arm 4, a start switch 6 is provided for controlling the start and stop of the sewing work. Further, on the front surface of the arm 4, a setting switch 7, a change-over switch 8 (switching element) for switching and selecting a pattern number, a 7-segment LED 9 (display element) for displaying the pattern number, etc. A saddle switch 10 for setting a saddle mode for adjusting the degree of skill is provided. The setting switch 7 includes a pattern selection switch 7a for selecting a pattern, a feed amount setting switch 7b (setting switch) for setting a feed amount, and a deflection amount setting switch 7c (for setting a deflection amount). Setting switch). The display unit 70 includes a pattern lamp 70a that is turned on when the pattern selection switch 7a is operated, a feed lamp 70b that is turned on when the feed amount setting switch 7b is operated, and a swing amount setting switch 7c that sets a swing amount. And a wide lamp 70c that is lit when operated.

  FIG. 2 shows an enlarged perspective view of the vicinity of the needle 12 provided on the lower surface 5 a side of the head 5. As shown in FIGS. 1 and 2, a needle 12 attached to the tip of the needle bar 11 and a cloth presser 13 (pressing element) that can be attached to and detached from the presser bar 90 and can be moved up and down integrally with the presser bar 90. Projecting from the lower surface 5 a of the head 5. Further, a cloth (sewing object) is fed into the groove 14a of the needle plate 14 (mounting portion) provided on the upper surface 2a of the bed portion 2 along the Y direction which is the vertical direction during linear sewing. A feed dog 15 is provided. The X direction indicates the swing width direction of the needle 12 and indicates the direction in which the arm 4 extends. The Y direction indicates the feed direction of the sewing object such as cloth, and indicates the direction connecting the user side of the sewing machine and the back.

  FIG. 3 shows a control system. A control device 100 on which a microcomputer 101, a memory 102, and an interface are mounted is provided. A pattern selection switch 7a for selecting a pattern, a feed amount setting switch 7b, a runout amount setting switch 7c, a start switch 6 for starting and stopping the sewing machine, a horse switch 10 for selecting a horse mode, a changeover switch 8, a foot Each signal of the controller 20 is input to the control device 100. The control device 100 outputs control signals to the display unit 70, the 7-segment LED 9, the spindle motor 59, the width motor 71, and the feed motor 215, respectively.

  For convenience of explanation, prior art will be described prior to explanation of the first embodiment. The user presses the feed amount setting switch 7b of the sewing machine body 1 to turn on the feed lamp 70b (display unit), and while watching the feed set value displayed on the 7-segment LED 9, "+", "-" Use the switch to select the number that indicates the desired feed setting. Similarly, the user presses the swing amount setting switch 7c of the sewing machine body 1 to turn on the feed lamp 70c (display unit), and while viewing the width setting value displayed on the 7-segment LED 9, "+" of the changeover switch 8 is displayed. The number indicating the width setting value desired by the user is selected with the “−” switch.

  When sewing the applique pattern, the user presses the pattern selection switch 7a of the sewing machine body 1 to light the pattern lamp 70a (display unit), and while watching the pattern number displayed on the 7-segment LED 9, the change switch 8 is set to “+”. The number indicating the applique pattern desired by the user is selected with the “−” switch. At this time, 3 is set as a default value which is a compulsory value forcibly instructed to set the fluctuation amount and feed amount of the selected applique pattern. That is, unless the user operates the switches 7b and 7c, 3 is set as the width setting value and 3 is forcibly set as the feed setting value. Here, FIG. 6 shows the amplitude data in the arrow X direction. The width data shown in FIG. 6 indicates the rotational position of the width motor 71 for swing width adjustment as an absolute value, and when the needle 12 is located at the center in the swing width direction (X direction shown in FIG. 2), Is 30. 6 shows the amount of deflection of the needle 12 in the arrow X direction. As shown in FIG. 6, when the deflection amount is set to the width setting value 3, the needle 12 swings 1.75 mm in the right direction (one direction) as viewed from the user with the value 40 of the data 1. Since the data 2 is also the value 40, the needle position remains as it is, and the amount of deflection becomes the value 20 in the data 3, and the deflection is 1.75 mm in the left direction (the other direction). As a result, with the width setting value 3, the needle 12 swings by 1.75 mm in the left-right direction (X direction), so the total swing width of the needle 12 is 3.5 mm.

  FIG. 7 shows Table 1 showing the data of the cloth feed amount in the arrow Y direction. The feed amount data shown in FIG. 7 indicates the rotational position of the feed motor 215 as an absolute value. When the feed amount is set to the feed set value 3, the value 22 of the data 1 indicates that the feed dog 15 is moved up and down. This indicates the position where the cloth is not fed, and the value 36 of data 2 is a position where the cloth is fed 2.5 mm in the forward direction (from the front of the sewing machine to the back in the arrow Y direction). When actually sewing, the runout amount data and the feed amount data advance in the order of data 1 → data 2 → data 3 for each stitch of the needle 12, and when a predetermined number of stitches (for example, 3 stitches) are sewn, the stitch 1 The set is complete. One set of values is stored in the area of the memory 102 for each pattern as the number of stitches corresponding to the pattern selected by the pattern selection switch 7a. When the user wants to change the feed amount of the cloth, the feed amount setting switch 7b of the sewing machine body 1 is operated to turn on the feed lamp 70b, and while watching the feed set value displayed on the 7-segment LED 9, “+”, “ With the “-” switch, the feed setting value can be changed in the range from 1 to 6 (see FIG. 7). Similarly, when the user wants to change the swing amount of the needle 12, the swing amount setting switch 7c of the sewing machine body 1 is operated to turn on the width lamp 70c and set the swing amount displayed on the 7-segment LED 9. The set value can be changed in the range from 1 to 6 (see FIG. 6) with the “+” and “−” switches while viewing the value. This is a conventional technique, and the sewing machine according to the present embodiment is also operated in this manner.

Hereinafter, embodiments corresponding to the present invention will be described. According to the present embodiment, mode 1 to mode 0 can be set as follows.
(Mode 0) (= 0) A mode that does not execute the umami mode and has no variation)
(Mode 1) A mode in which the feed amount is set as the feed value and only the swing amount is “small variation” (Mode 2) A mode in which the feed amount is the feed set value and only the swing amount is “large variation” (mode 3) Mode in which the runout amount is set to the width setting value and only the feed amount is “small variation” (mode 4) Mode in which the runout amount is set to the width setting value and only the feed amount is set to “large variation” (mode 5) A mode in which both the swing width and feed amount are “small variation” (mode 6) A mode in which both the swing width amount and feed amount are “large variation” The user has to manually operate the bellow switch 10 mounted on the sewing machine body 1. When the operation is performed, the mode value in the habit mode currently set is displayed on the 7-segment LED 9. The default value which is a compulsory value is 0 (it is a turn off of the saddle horse mode, which corresponds to a turn off of the mode where the horseshoe mode is not adopted). Each time the user operates the napus switch 10 by hand, the setting changes in the order of 1 mode → 2 mode → 3 mode → 4 mode → 5 mode → 6 mode in the 7-segment LED 9. Further, when the user operates the napus switch 10, the mode is switched to 0 mode, and the nausea mode is not adopted. For example, if the pattern setting is applique, the width setting value of the runout amount is 3, the feed setting value of the feed amount is 4, and the spatula mode is mode 1 (the feed amount does not vary and only the runout amount varies. When sewing is started in the small mode, the feed setting value is fixed as 4 (feed amount: 3.0 mm), but the width setting value is an area of width setting values 2, 3 and 4 (settings set by the user) In a region including before and after the value 3, it is randomly extracted from either. That is, one width setting value is extracted from among the width setting value 2, the width setting value 3, and the width setting value 4 as the width setting value of the shake amount.

  Until one set of stitches (in this case, three stitches) is completed, the stitches are formed by using the extracted setting value data 1, data 2, and data 3. When one set of stitches (for example, three stitches) is completed, the width setting value for the next set is again random from any of the areas of width setting value 2, width setting value 3, and width setting value 4. Extracted to form a seam. These stitch formation processes are repeated until a sewing end signal is input. In this case, since the feed set value is fixed at 4 (feed amount: 3.0 mm), the feed amount is constant at 3 mm, but the runout amount is 3.0 mm (width set value 2). An applique pattern varying in 5 mm (width setting value 3) or 4.0 mm (width setting value 4) is completed. Thus, mode 1 in which the amount of feed is not varied and only the amount of fluctuation is small is executed in the spatula mode. At this time, in a wide area including the width setting value 3 which is the width setting value set by the user, that is, randomly extracted from the area of the width setting value 2, the width setting value 3, and the width setting value 4, a stitch is formed. The In other words, there is a probability that the width setting value 3 that is the width setting value set by the user is extracted. For this reason, it is suppressed that the seam which a user does not intend at all is formed. Therefore, although it is a poor seam, a seam of the lower degree intended by the user is formed.

  In addition, the pattern setting is appliqué, the width setting value of the runout amount is 3, the feed setting value of the feed amount is 4, and the sewing mode is set to mode 2 (mode in which only the runout amount varies greatly). When starting, the feed setting value is fixed at 4, and a wide area (width setting value 1, width setting value 2, width setting value 3, width setting value 4, width setting value 5, width setting value 6) (shown in FIG. 6) The width setting value is randomly extracted from all areas. Until one set of stitches (in this case, three stitches) is completed, stitches are formed using data 1, data 2, and data 3 based on the extracted set values. When one set of stitches is finished, the width setting value for the next set is width setting value 1, width setting value 2, width setting value 3, width setting value 4, width setting value 5, width setting value 6 Are randomly extracted from any one of them to form a seam. These processes are repeated until the sewing end signal is input, and since the feed amount is fixed at 3.0 mm because the feed set value 4 is fixed, the runout amount is 2.5 mm (width set value 1). ), 3.0 mm (width setting value 2), 3.50 mm (width setting value 3), 4.0 mm (width setting value 4), 4.5 mm (width setting value 5), 5 mm (width setting value 6) Applique patterns that vary between the two are completed.

  Also, the pattern setting is appliqué, the width setting value of the runout amount is 3, the feed setting value of the feed amount is 4, and the sag mode is mode 5 (mode in which both the runout amount and feed amount are small) When sewing starts, the feed setting value of the feed amount is the area of feed setting value 3, feed setting value 4, feed setting value 5 (the area including the feed setting value 4 set by the user and the setting values before and after that) Extracted from Further, the width setting value of the runout amount is randomly selected from the area of the width setting value 2, the width setting value 3, and the width setting value 4 (the area including the width setting value 3 set by the user and the setting values before and after the width setting value). Extracted. Until one set of stitches (three stitches in this case) is completed, the stitches are formed using the extracted feed setting value and width setting value data 1, data 2, and data 3. When one set of the stitches is completed, the control device 100 randomly extracts the width setting value and the feed setting value for the next one set again to form the stitches. These processes are repeated until a sewing end signal is input. In this case, the feed amount varies as 2.5 mm (feed set value 3), 3.0 mm (feed set value 4), and 3.5 mm (feed set value 5). In addition, an applique pattern having a width of 3.0 mm (width setting value 2), 3.5 mm (width setting value 3), and 4.0 mm (width setting value 4) is completed. Note that one set is not limited to three stitches, and can be set within a range of, for example, 2 to 2000 stitches according to the pattern. The same applies to the mode 3, mode 4, mode 5 and mode 6 of the spatula mode. As an example, an applique pattern is given, but the same applies to other patterns and seams.

  As described above, according to the present embodiment, in mode 0, regular uniform seams can be obtained. In this case, since it is too regular, there is a risk of giving a uniform solid feeling and a cold feeling. In this regard, according to the present embodiment, the width setting value of the swing amount is set by the user from the swing amount setting switch 7c, and the feed setting value of the feed amount is set by the user from the feed amount setting switch 7b. Nevertheless, if the napus switch 10 is operated by the user, the nausea mode is executed by the control device 100. And in Mode 1 to Mode 6 of the spatula mode, during sewing, at least one of the feed amount and the runout width amount varies with respect to the width setting value and the feed setting value set by the user. A seam that can feel comfortable and warm is obtained. In other words, it not only eliminates certain uniform hardness and coldness unique to machine sewing, but also makes it appear as if sewing beginners or children sew by hand sewing when the level of spatula is high. it can. In other words, it is possible to form a seam that is positively shown to the “head”. Of course, if the mode 0 is adopted, variations in the runout amount and the feed amount are eliminated, so that it can be seen as if a machine or an advanced sewing machine sewed.

  According to the present embodiment, when the amount of deflection of the needle 12 is varied, the width setting value is randomly extracted in a wide area that always includes the width setting value set by the user, and a seam is formed. In other words, there is always a probability that the width setting value set by the user is extracted. Similarly, when the feed amount of the cloth is varied, the feed set value is extracted at random in a wide area that always includes the feed set value set by the user, and a seam is formed. In other words, there is a probability that the feed setting value set by the user is extracted. For this reason, it is suppressed that the seam which a user does not intend at all is formed. Therefore, although it is a poor seam, a seam of the lower degree intended by the user is formed.

  Furthermore, according to the sewing machine according to the embodiment, when executing the sag mode, the width setting value related to the amount of deflection of the needle is not a method that requires extremely complicated calculation until a numerical value representing 1 / f is obtained. In addition, the user sets the feed setting value related to the feed amount of the sewing object, and one or both of the width setting value and the feed setting value vary with respect to the respective user setting values. For this reason, an extremely complicated calculation is not performed, an extremely high performance computer and an extremely high performance memory are not required, and an inexpensive microcomputer and memory are sufficient.

  By the way, according to the present embodiment, when a mode with a mode of the navel mode selected by the navel switch 10 is being executed, the navel switch 10 is operated and different during the mode execution. There are times when a mode is selected. In this case, the control device 100 does not change the mode in the navel mode selected by the navel switch 10 in one set of seams regardless of the operation of the navel switch 10. Since the mode in the navel mode selected by the spatula switch 10 is not changed in this way, the balance of the seam and the pattern is prevented from being lost during one set of seams, and the seam is prevented from becoming abnormal. It is suppressed that it is not known what seams or patterns. In this case, when one set of stitches is completed, the mode newly selected by the spatula switch 10 can be changed. Here, a set of stitches can be defined by a predetermined number of times that a needle stabs a sewing object such as cloth, and a pattern selection switch 7a that functions as a pattern selection element for selecting a pattern to be sewn on the sewing object such as cloth. This is set for each pattern selected in step S1 and is stored in the area of the memory 102. For example, for each pattern, a predetermined number of times corresponding to the pattern is set as one set and stored in the memory 102 of the control device 100. One set can be selected from a range of 2 to 1000 times, for example. Or it can set suitably from the range of 2 to 200 times, the range of 2 to 100 times, the range of 2 to 50 times, etc.

(Embodiment 2)
The present embodiment has basically the same configuration and the same function and effect as the first embodiment. Also in the present embodiment, Mode 1 to Mode 6 and Mode 0 can be selected by the spatula switch 10. As in the first embodiment, a pattern selection switch 7 a is provided in the sewing machine body 1. The control device 100 assumes a case where the mode is changed by the operation of the navel switch 10 while the mode having the napus mode selected by the operation of the napus switch 10 is being executed. Even in such a case, the mode (mode 1 to mode 6 and mode 0) selected by operating the navel switch 10 is set until one set of seams (that is, one unit of the pattern) is completed. It does not change. Even if the mode is changed by operating the spatula switch 10 in this way, the mode selected by the spatula switch 10 in the set (unit of pattern) selected by the pattern selection switch 7a is changed. Since it is not changed, it is possible to prevent the balance from being lost in the middle of one set (one unit of the pattern), to prevent the pattern from becoming abnormal, and to prevent the user from knowing what the pattern is. In this case, when one set (one unit of pattern) is completed, the mode selected by the spatula switch 10 is changed.

(Embodiment 3)
8 and 9 show the third embodiment. Since this embodiment basically has the same configuration and the same function and effect as the first embodiment, FIGS. 1 to 7 are applied mutatis mutandis. Also in the present embodiment, Mode 1 to Mode 6 and Mode 0 can be selected by the spatula switch 10.
(Mode 1) A mode in which the feed amount is set as the feed value and only the swing amount is “small variation” (Mode 2) A mode in which the feed amount is the feed set value and only the swing amount is “large variation” (mode 3) Mode in which the runout amount is set to the width setting value and only the feed amount is “small variation” (mode 4) Mode in which the runout amount is set to the width setting value and only the feed amount is set to “large variation” (mode 5) A mode in which both the runout amount and feed amount are “small variation” (mode 6). A mode in which the runout amount and feed amount are “large variation” (mode 0) (= 0). None mode)
First, the control device 100 reads the pattern selection switch 7a, the feed amount setting switch 7b, and the runout amount setting switch 7c, and performs display processing of the pattern lamp 70a, the feed lamp 70b, and the width lamp 70c (step S102). . When there is a sewing start signal (Yes in step S104), sewing start processing is started (step S106). When there is a sewing end signal (Yes in step S108), the control device 100 performs a sewing stop process (step S110), returns, and returns to step S102. When there is no sewing end signal (No in step S108), the control device 100 performs a stitch count process for measuring the stitch count (step S120). It is determined whether the number of stitches is a pattern step break (step S122). The fact that the number of stitches is a pattern step separation corresponds to the end of one set corresponding to the pattern. When the number of stitches is a pattern step break (Yes in step S122), the control device 100 determines whether or not the navel mode is turned off, that is, whether or not the navel mode is selected (step S128).

  When it is not the saddle mode (No in step S128), the runout amount is set to the width setting value (step S130). The control unit 100 outputs the control signals to the spindle motor 59, the width motor 79, and the feed motor 215 (step S124).

  When the mode selected by the user is the navel mode (Yes in step S128), the control device 100 determines whether the mode is the navel mode 1 or 5 (step S134). In the spatula mode 1 or 5 (Yes in step S134), although the feed amount is the feed set value, the variation in the swing width amount is small. For this reason, the control device 100 determines whether or not the width setting value of the shake amount is the minimum (step S136). When the width setting value of the swing amount is minimum (Yes in step S136), the control device 100 determines the width setting value of the swing amount from the minimum value, the minimum value + 1, and the minimum value + 2. Extract at random (step S138), and proceed to step S160. When the width setting value of the shake width amount is not the minimum (No in Step S136), the control device 100 determines whether or not the width setting value of the shake width amount is the maximum (Step S140). When the width setting value of the swing amount is the maximum (Yes in step S140), the control device 100 sets the width setting value of the swing amount as the maximum value, the maximum value-1, and the maximum value-2. Are extracted at random (step S142), and the process proceeds to step S160. When the width setting value of the swing width amount is not the minimum and the width setting value of the swing width amount is not the maximum (No in Step S140), the control device 100 sets the width setting value of the swing width amount to the width setting value − 1, random setting is extracted from the region of width setting value and width setting value + 1 (step S144), and the process proceeds to step S160.

  Now, when it is in the saddle mode 2 or 6 (Yes in step S150), the variation in the swing amount is large. For this reason, the control device 100 extracts at random the width setting value of the shake amount from all regions from the minimum value to the maximum value (step S152), and proceeds to step S160. If the mode is not the navel mode 1 or 5 and is not the navel mode 2 or 6 (No in step S150), the mode is set to mode 3 or 4 (the amount of runout is fixed as the width setting value). In this mode, only the feed amount is dispersed. Therefore, the control device 100 sets the deflection amount as the original width setting value (step S154). Here, when the saddle mode is 2 or 6, the variation in the swing width amount is large. For this reason, the control device 100 extracts at random the width setting value of the shake amount from all regions from the minimum value to the maximum value (step S152), and proceeds to step S160.

  In the case of spatula mode 4 or 6 (Yes in step S180), the amount of feed varies greatly. For this reason, the control apparatus 100 extracts the feed amount setting value of the feed amount from all areas from the minimum value to the maximum value at random (step S182), and proceeds to step S124. When not in the spatula modes 3 and 5 and not in the spatula modes 4 and 6 (No in step S180), the spatula mode is mode 1 or 2 (the feed amount is fixed as the feed set value). Mode in which only the amount of runout varies. Therefore, the control device 100 sets the feed amount to the original feed amount setting value (step S184).

  In the case of spatula mode 3 or 5 (Yes in step S160), the feed amount is varied. Therefore, the control device 100 determines whether or not the feed amount feed setting value is the minimum (step S162). When the feed set value of the feed set amount is the minimum (Yes in step S162), the control device 100 sets the feed set value of the feed amount from the minimum value, the minimum value + 1, and the minimum value + 2 areas. Extract at random (step S164), and proceed to step S124. If the feed amount feed setting value is not the minimum (No in step S162), the control device 100 determines whether or not the feed amount feed setting value is the maximum (step S166). If the feed setting value of the feed amount is the maximum (Yes in step S166), the control device 100 sets the feed setting value of the feed amount from the maximum value, the maximum value-2, and the maximum value-1 region. Extract at random (step S168), and proceed to step S124. When the set value of the feed amount is not the minimum and not the maximum (No in step S166), the control device 100 sets the feed set value of the feed amount to the feed set value-1, the feed set value, and the feed set value + 1. At random is extracted from the region (step S170), and the process proceeds to step S124.

  Also in the present embodiment, in mode 0, regular uniform seams can be obtained. However, in Mode 1 to Mode 6, since at least one of the runout amount and the feed amount varies with respect to the set value during sewing, a seam that can feel comfort and warmth is obtained. That is, in addition to eliminating a certain kind of hardness and coldness peculiar to machine sewing, when the level of spatula is high, it can be seen as if a sewing novice, a child or the like sewed by hand sewing. In other words, it is possible to form a seam that is positively shown to the “head”. Of course, when the degree of deliciousness is high, it can be seen as if a machine or a sewing expert has sewed it. Further, according to the sewing machine according to the embodiment, the spatula selection element is not a method in which a very complicated calculation is indispensable until a numerical value representing 1 / f is obtained. The amount is set as a set value, and at least one of the swing amount and the feed amount is varied with respect to the set value. Therefore, an extremely high-performance computer and It does not require extremely high-performance memory, and an inexpensive microcomputer and memory are sufficient.

(Embodiment 4)
Since this embodiment basically has the same configuration and the same function and effect as the first embodiment, FIGS. 1 to 7 are applied mutatis mutandis. Also in the present embodiment, Mode 1 to Mode 6 and Mode 0 can be selected by the spatula switch 10. When the pattern setting is appliqué, the width setting value of the runout amount is 3, the feed setting value of the feed amount is 4, and the sewing mode is set to mode 1 (mode in which only the runout amount is less varied). Although the feed setting value is fixed as 4, the width setting value is randomly extracted from the area of width setting value 2 and width setting value 4 (not including width setting value 3). Until one set of stitches is completed, stitches are formed using data 1, data 2, and data 3 based on the extracted set values. These processes are repeated until the sewing end signal is input, and the feed amount is fixed because it is fixed at the feed setting value 4, but 3.0 mm (width setting value 2), 4.0 mm (width setting) An applique pattern with value 4) is completed. As described above, the amount of deflection and / or the feed amount does not include the setting value itself set by the user, but sewing is performed based on data before and after the setting value set by the user.

(Embodiment 5)
The present embodiment has basically the same configuration and the same function and effect as the first embodiment. Also in the present embodiment, Mode 1 to Mode 6 and Mode 0 can be selected by the spatula switch 10. As in the first embodiment, a pattern selection switch 7 a is provided in the sewing machine body 1. Control device 100 can change the mode (mode 1 to mode 6 and mode 0) selected by operating napus switch 10 when napus switch 10 is operated.

  When a specific mode is selected from the navel mode by operating the navel switch 10 and sewing is performed based on the mode, the mode is changed by the user operation of the navel switch 10. Assuming that In this case, even in the middle of one set (one pattern unit) selected by the pattern selection switch 7a, the mode selected by the spatula switch 10 is changed. For this reason, the balance may be slightly lost in the middle of one set (one unit of pattern), so that the number of needles required for one set (one unit of pattern) is a predetermined value or more. The predetermined value is appropriately set according to the pattern. If the pattern is complex, the number of the predetermined value increases. If the pattern is simple, the number of the predetermined value decreases. This is because when the number of needles required for one unit of the pattern is small, the pattern is easily broken. This is because when the number of needles required for one unit of the pattern is large, the pattern is difficult to collapse. According to the present embodiment, the degree of freedom for adjusting the degree of lower and upper hands in one set (one unit of pattern) can be increased, and the degree of freedom of selection by the user can be increased.

(Embodiment 6)
10 and 11 show a sixth embodiment. The present embodiment has basically the same configuration and the same function and effect as the first embodiment. FIG. 10 is a front view showing an internal configuration of the sewing machine body 1. As shown in FIG. 10, the sewing machine outline 51 of the sewing machine body 1 includes a machine frame 52 inside. The main shaft 53 is rotatably supported along a horizontal direction by a pair of bearings 54 fixed to the machine frame 52. A hand wheel 55 and a pulley 56 are fixed to one end of the main shaft 53. The pulley 56 has a large-diameter driven pulley 56a and a small-diameter timing pulley 56b. A spindle motor 59 (only part of which is shown in FIG. 10) is attached to the machine casing 52. A motor pulley 58 is fixed to the output shaft of the main shaft motor 59. Inside the bed portion 2, a lower shaft 67 having a timing pulley 67c is rotatably supported by a bearing 67a. An endless drive belt 57 is hung on the motor pulley 58, the timing pulley 67c, and the driven pulley 56a. The rotation of the spindle motor 59 is reduced to a predetermined reduction ratio (for example, about 1/9) by the drive belt 57 and transmitted to the spindle 53 and the lower shaft 67. A tension pulley 68 is applied to the drive belt 57.

  As shown in FIG. 10, a needle bar vertical movement mechanism 60 for reciprocating the needle bar 11 in the vertical direction is provided. A needle bar crank 61 is fixed to the other end of the main shaft 53 as is well known. The needle bar up-and-down moving mechanism 60 includes a needle bar crank 61 and a crank rod 62 connected to the needle bar crank 61. The needle 12 is fixed to the lower end of the needle bar 11 by a needle stopper 16. The needle 12 is integrated with the needle bar 11 and reciprocates in the vertical direction (Z direction). The upper end portion of the needle bar arm 76 is pivotally supported with the shaft 75 as a swing center, and the lower end portion of the needle bar arm 76 is swingable in the lateral direction (X direction). The needle bar 11 is pivotally supported by a needle bar arm 76 so as to be slidable in the lateral direction (X direction).

  Here, the needle bar swing mechanism 70 for swinging the needle 12 in the lateral direction (X direction) includes a width motor 71 for swing width adjustment formed by a stepping motor held by the machine frame 52, and a width motor 71. , A width driving arm 73 having a fan gear 73a meshing with the small gear 72, a pivot shaft 73c serving as a swinging center for swinging the width driving arm 73, and a width extending in the X direction. The rod 74 and a needle bar arm 76 supported by a shaft 75 so as to be swingable in the lateral direction (X direction). That is, a small gear 72 is attached to the motor shaft of the width motor 71 for adjusting the deflection width. The small gear 72 meshes with the fan-shaped gear 73 a of the width driving arm 73. One end 73 e of the width driving arm 73 is connected to one end 74 a of the tenter rod 74. The other end 74 c of the tenter rod 74 is connected to the lower portion 76 d of the needle bar arm 76. When the width motor 71 for adjusting the deflection width is driven, the driving force is transmitted as an operation in the arrow X direction via the small gear 72 and the width driving arm 73 as an operation in the arrow X direction, and further to the needle bar arm 76. The As a result, the needle bar 11 swings in the lateral direction (X direction) about the shaft 75. In this way, the width motor 71 for adjusting the swing width swings the needle bar 11 and the needle 12 in the lateral direction (X direction) via the width-developing rod 74 by computer control in synchronization with the rotation of the main shaft 53. Based on the drive amount of the swing width adjustment mode 71, the swing width amount of the needle bar 11 in the lateral direction (X direction) is determined. The sewing machine (FIG. 10) has a foot controller 20 that a user operates with a leg. The needle 12 is attached to the tip of the needle bar 11. Therefore, the sewing speed and runout amount of the needle bar 11 are equal to the sewing speed and runout amount of the needle 12. Hereinafter, the swing width amount corresponds to the swing width amount of the needle bar 11 and the needle 12 in the X direction. The sewing speed corresponds to the reciprocating speed in the vertical direction (Z direction) of the needle bar 11 and the needle 12, and corresponds to the rotational speed of the main shaft 53 (hereinafter also referred to as the main shaft rotational speed).

  FIG. 11 conceptually shows an operation mechanism for operating the feed dog 15. Such an operating mechanism itself is a well-known mechanism. As shown in FIG. 11, the operating mechanism includes a first arm 201 that rotates about a first pivot shaft 200, and a second arm that is pivotally supported by the first arm 201 via a second pivot shaft 203. 204, a third arm 206 pivotally supported by a middle portion of the first arm 201 via a third pivot shaft 205, a lifting drive cam 207 for lifting and lowering the second arm 204, and a lifting and lowering of the third arm 206. A horizontal driving cam 208, a tension spring 210 that pulls the second arm 204 in the direction of arrow W2, a tension spring 212 that pulls the third arm 206 in the direction of arrow W3, and a cam follower provided on the third arm 206 213, a feed adjuster 216 having a groove cam 215 for fitting the cam follower 213, and a stepping motor that engages with the feed adjuster 216 and adjusts the direction of the feed adjuster 216. In and a feed motor 215 that is formed. The second arm 204 is provided with a feed dog 15. The third arm 206 is pulled by the tension spring 212 in the arrow W3 direction. The cam follower 213 of the third arm 206 is fitted in the groove cam 215 of the feed adjuster 216.

  At the time of sewing, the elevating drive cam 207 and the horizontal drive cam 208 are rotationally driven by the main shaft motor 59 (see FIG. 10). Here, when the elevating drive cam 207 rotates around the first eccentric shaft 210, the second arm 204 moves up and down. When the horizontal driving cam 208 rotates around the second eccentric shaft 211, the third arm 206 moves along the ascending / descending direction (Z direction) and moves the feed dog 15 along the horizontal direction. By combining such operations, the feed dog 15 performs a square motion with a movement in the ascending / descending direction (Z direction) and the horizontal direction. In order to adjust the feed amount of the feed dog 15 in the arrow Y direction, the feed motor 215 is driven at a predetermined angle. When the feed motor 215 is driven at a predetermined angle in this way, the direction of the feed adjuster 216 is adjusted between the direction A1 and the direction A2. As a result, the feed amount of the feed dog 15 can be adjusted between the feed amount large and the feed amount small along the feed direction of the feed dog 15 (arrow Y direction).

(Embodiment 7)
12 to 17 show sewing forms when the sewing machine according to the present embodiment is executed.
(Mode 0) The sag mode is not executed, and the set value set with the runout amount setting switch 7c for the runout amount of the needle 12 according to the set value set with the feed amount setting switch 7b. As is the case with sewing, this is a mode without variation.
(Mode 1) Mode (mode 2) in which the cloth feed amount is set to the feed set value set by the feed amount setting switch 7b and only the deflection amount of the needle 12 is “small variation”. (Mode 2) The feed amount is set by the feed amount setting switch 7b. Mode (mode 3) in which only the runout amount is set to “large variation” with the set feed set value being set as the width set value set with the runout amount setting switch 7c, and only the feed amount is set to “small variation”. Mode (mode 4) where the runout amount is the width set value set by the runout amount setting switch 7c, and only the feed amount is “large variation” (mode 5) The runout amount and feed amount are both “small variation” Mode (Mode 6) A mode in which both the runout amount and the feed amount are “large variation”. As can be understood from FIGS. 12 to 17, in Mode 0, the stitches are regular. In Mode 1 to Mode 6, since at least one of the runout amount and the feed amount varies with respect to the set value during sewing, a seam that can feel comfort and warmth is obtained. That is, in addition to eliminating a certain kind of hardness and coldness peculiar to machine sewing, when the level of spatula is high, it can be seen as if a sewing novice, a child or the like sewed by hand sewing. In other words, it is possible to form a seam that is positively shown to the “head”. Of course, when the mode is 0, it can be seen as if a machine or a sewing expert has sewed. Further, according to the sewing machine according to the embodiment, the spatula selection element is not a method in which a very complicated calculation is indispensable until a numerical value representing 1 / f is obtained. The amount is set as a set value, and at least one of the swing amount and the feed amount is varied with respect to the set value. A low-cost microcomputer and memory are sufficient, without requiring high-performance memory.

(Embodiment 8)
Since this embodiment basically has the same configuration and the same operation and effect as the first embodiment, FIGS. 1 to 7 can be applied mutatis mutandis. According to the present embodiment, the number of modes is reduced in the navel mode.
(Mode 1) A mode in which the feed amount is set as the feed set value and a variation is generated only in the swing amount (Mode 2) A mode in which the swing amount is set as a width set value and a variation is generated only in the feed amount (Mode 3) A mode in which neither the amount nor the feed amount generates variation (mode 0) (= 0).
(Embodiment 9)
Since this embodiment basically has the same configuration and the same operation and effect as the first embodiment, FIGS. 1 to 7 can be applied mutatis mutandis. According to the present embodiment, the number of modes is reduced in the navel mode.
(Mode 1) Mode for generating small variations in the feed amount and runout amount (Mode 2) Mode for generating variations in the feed amount and runout amount (Mode 3) Feed amount and runout amount respectively Mode that causes large variations in the mode (mode 0) (= 0) mode that does not execute the umami mode and does not vary)
(Embodiment 10)
Since this embodiment basically has the same configuration and the same operation and effect as the first embodiment, FIGS. 1 to 7 can be applied mutatis mutandis. According to the present embodiment, the number of modes is reduced in the navel mode.
(Mode 1) A mode in which the fluctuation amount is set to the user set value and a small variation is generated for only the feed amount (Mode 2) A mode in which the amplitude is set to the user set value and a large variation is generated only for the feed amount (Mode 0) (= 0) A mode that does not execute the horse mode and does not vary)
(Embodiment 11)
Since this embodiment basically has the same configuration and the same operation and effect as the first embodiment, FIGS. 1 to 7 can be applied mutatis mutandis. According to the present embodiment, the number of modes is reduced in the navel mode.
(Mode 1) A mode in which the feed amount is a user set value and a small variation is generated only for the swing width amount (Mode 2) A mode in which the feed amount is a user set value and a large variation is generated only in the swing width amount (Mode 0) (= 0) A mode that does not execute the horse mode and does not vary)
(Embodiment 12)
Since this embodiment basically has the same configuration and the same operation and effect as the first embodiment, FIGS. 1 to 7 can be applied mutatis mutandis. According to the first embodiment described above, the width setting value that can be set by the user by the deflection amount setting switch 7c is selected from the width setting value 1 to the width setting value 6, but in this embodiment, the width setting value 1 to the width setting. Selected from the value 3. Further, according to the first embodiment described above, the feed setting value that can be set by the user by the feed amount setting switch 7b is selected from the feed setting value 1 to the feed setting value 6. In this embodiment, the feed setting value 1 to the feed setting is selected. Selected from the value 3.

(Embodiment 13)
18-23 show other embodiments. 18 is a front view of a sewing machine for sewing, FIG. 19 is a rear view, FIG. 20 is a right side view, FIG. 21 is a left side view, FIG. 22 is a plan view, and FIG. FIG. 24 shows the whole. As a feature of this sewing machine, a table on which a sewing object such as a cloth to be sewn is circular is circular in a plan view. For this reason, a sewing object such as a cloth to be sewn can be easily placed and sewn easily. Further, the round table can be removed from the sewing machine main body, and when the table is removed from the sewing machine main body, sewing can be performed in the same manner as a normal sewing machine. The sewing machine according to the present embodiment has a navel switch for executing the navel mode, but even if it does not have a navel switch, the table on which a sewing object such as a cloth is placed is circular. good.

(Other)
6 shows runout data in the direction of arrow X, and FIG. 7 shows feed data in the direction of arrow Y, but is not limited to the numerical values of the data shown in this figure. It is not limited to 7 segment LED9, It is good also as a liquid crystal display part. Both the width setting value and the feed setting value may be individually set only by the spatula switch 10. In the first exemplary embodiment, the number of modes of the nausea mode is 7 including mode 0, but is not limited thereto, and the number of modes may be 5 or 9 including mode 0. The present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications within the scope not departing from the gist. The following technical idea can also be grasped from the description of the present specification.
[Additional Item 1] A placement portion on which a sewing object is placed, a needle bar that can be moved up and down with respect to the placement portion, and a needle that can be attached thereto, and a feed amount and a feed amount of the sewing object in a feed direction A sewing machine having a control device capable of controlling a relative deflection width of the needle with respect to the sewing object in a deflection direction orthogonal to the direction, and adjusting a degree of a lower hand and an upper hand in a seam of the sewing object A sewing machine, comprising: a horse selection element for outputting a command to execute a human horse mode to the control device. It is possible to adjust the degree of lower and upper hands at the seam of the sewing object.

  1 is a sewing machine body, 2 is a bed part, 4 arms, 5 is a head, 6 is a start switch, 7 setting switch, 7a is a pattern selection switch, 7b is a feed amount setting switch, 7c is a deflection amount setting switch, 70 Is a display unit, 9 is a 7-segment LED, 10 is a saddle switch (spinning selection element), 11 is a needle bar, 12 is a needle, 13 is a presser, 14 is a needle plate (mounting part), 15 is a feed Tooth, 59 is a spindle motor, 71 is a width motor for adjusting a swing width, 100 is a control device, and 215 is a feed motor.

Claims (7)

A placing portion on which a sewing object is placed;
A needle bar which is provided so as to be movable up and down with respect to the placement unit and can be fitted with a needle;
A sewing machine comprising: a control device capable of controlling a feed amount of the sewing object in the feed direction and a relative swing width amount of the needle with respect to the sewing object in a swing direction orthogonal to the feed direction;
A saddle selection element is provided for outputting a command to execute a saddle mode to adjust the degree of the lower hand and upper hand at the seam of the sewing object to the control device,
The spatula selection element sets a deflection width amount of the needle and a feed amount of the sewing object as set values, respectively, and at least one of the deflection width amount and the feed amount is set with respect to the set value. A sewing machine that outputs a command to scatter to the control device. 2. The spatula selection element according to claim 1, wherein the spatula selection element allows the user to select a setting switch that the user sets as a set value for the amount of deflection of the needle and the feed amount of the sewing object, and the spatula mode. And has a switch
The control device includes the setting value set by the setting switch and the swing amount and the deflection amount in the selection region near the setting value when the saddle mode is selected by the spatula switch. A sewing machine characterized in that at least one of the feed amounts varies.   3. The swing width mode according to claim 1, wherein the control device includes a width setting value related to the amount of the swing width set by the setting switch, and in the selection region near the width setting value, The sewing machine has a probability of varying the amount and having the probability of selecting the width setting value set by the setting switch.   4. The wide selection region in the vicinity of the feed setting value according to claim 1, wherein the control device includes a feed setting value related to the feed amount set by the setting switch. The sewing machine has a probability of varying the feed amount and selecting the feed set value set by the setting switch.   In any one of Claims 1-4, the said spatula selection element does not vary the said feed amount, The variation range mode which varies the deflection amount of the said needle | hook, The variation of the said deflection amount The sewing machine is characterized by being capable of selecting a feed amount variation mode in which the feed amount is not changed and a swing amount amount / feed amount variation mode in which both the needle swing amount and the feed amount are varied.   In any one of Claims 1-5, when the spatula mode is changed in the middle of sewing, the control device, in one set of the seams, regardless of the operation of the spatula selection element, A sewing machine characterized by not changing the mode selected by the spatula selection element.   6. The control device according to claim 1, wherein the controller changes the mode selected by the spatula selection element when the spatula selection element is operated in a set of the seams. A sewing machine characterized by that.

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