JP2000300878A - Copy sewing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compactly and inexpensively manufacture a sewing apparatus for copy sewing of an article to be sewn and to make copy sewing operation easy and efficient. SOLUTION: A copying device 6 is provided on the underside of a cradle 3 for supporting an article 2 to be sewn through connecting members 5. The copying device 6 is provided with a projected rail 11 coinciding with a sewing trail when a sewing needle provides a required sewing on the article 2 to be sewn and a stationary roller 21 and two movable rollers 22 and 22 arranged on its left and right for pinching the projected rail 11 from both sides. The movable rollers 22 and 22 are brought into press contact with the side face part 14 of the inside of the projected rail by an energizing means. The projected rail 11 pinched by means of inner and outer rollers is successively carried in the length direction by forcibly rotating the movable roller 22. The part 26 to be sewn of the article 2 to be sewn supported by the cradle 3 is successively introduced thereby to a sewing needle by copying the shape of the projected rail 11 in the length direction and is sewn.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing apparatus for sewing a workpiece to be sewn on a pedestal according to the shape of a ridge rail of a tracing apparatus provided on the pedestal. It is.

[0002]

2. Description of the Related Art Conventionally, as a device for performing required sewing on an object to be sewn such as a cloth supported on a receiving table, a rotary table for placing a cloth on a movable member that moves in the X and Y directions has conventionally been used. Has been proposed, and a numerical control apparatus has been proposed in which a receiving table is configured to numerically control the amount of movement of the movable member in the X and Y directions and the rotation angle of the rotary table.

[0003]

However, the numerically controlled copying apparatus having the above-described structure has a complicated structure for controlling the X direction, the Y direction, and the rotation angle.
Since expensive parts such as servomotors were required for each control, the manufacturing cost of the apparatus was increased. Also, during sewing, the movement of the movable member in the two-dimensional direction becomes large, so that not only a large space is required for installation of the device, but also because the control device is so large, the receiving stand has a large area. Therefore, there is also a problem that it is difficult to set the workpiece on the receiving table, and the sewing operation efficiency is poor.

An object of the present invention is to provide a sewing apparatus capable of solving such a problem.

[0005]

The present invention employs the following means to solve the above-mentioned problems. That is, the profile sewing device according to the present invention is provided with a profile device on the lower side or the upper side of the pedestal supporting the workpiece from below, and the profile device is
The sewing machine is provided with a ridge rail conforming to a sewing locus when the sewing needle performs required sewing on a workpiece supported by the receiving table, and a feed device for sequentially feeding the ridge rail. And the feeder is arranged to sandwich the ridge rail,
One stationary roller, and two movable rollers disposed on the left and right of the stationary roller, wherein the stationary roller is brought into pressure contact with one side surface of the ridge rail, while the movable roller is The movable roller is configured to be brought into pressure contact with the other side surface of the ridge rail, and the movable roller is pressed by the urging action of the urging means. The stationary roller and the two movable rollers are also provided. Is forcibly rotated so that the feed device sequentially feeds the ridge rail in the longitudinal direction thereof, whereby the sewn portion of the sewn object supported by the receiving stand is provided. However, according to the shape in the longitudinal direction of the ridge rail, the ridge rail is sequentially introduced into the sewing machine needle.

A more specific embodiment of the sewing apparatus according to the present invention is provided with a copying device below or above a receiving stand for supporting a workpiece to be sewn from below. The sewing machine includes a protruding rail that matches a sewing locus when the sewing needle performs required sewing on a workpiece supported by the sewing machine, and a feeding device that sequentially feeds the protruding rail. The feeder is disposed so as to sandwich the ridge rail.
Fixed rollers, and two fixed rollers arranged on the left and right of the fixed rollers.
And the movable roller is in pressure contact with one side surface of the ridge rail, and the movable roller is in pressure contact with the other side surface of the ridge rail. The pressing of the movable roller is performed by the urging action of the urging means.
When at least one of the movable rollers is forcibly rotated, the feed device sequentially feeds the ridge rail in the length direction thereof, whereby
The sewn portion of the sewn object supported by the receiving table follows the shape of the ridge rail in the longitudinal direction and is sequentially introduced into the sewing needle. Further, the sewing needle moves up and down at a required position on a line connecting a center of the stationary roller and a contact portion between the stationary roller and the ridge rail.

In each of the above-described sewing apparatuses, rack-shaped teeth are provided on the side surface of the ridge rail along the length direction of the ridge rail, and the movable roller or the stationary roller to be forcibly rotated is provided. It is preferable that a pinion-shaped roller meshes with the rack-shaped teeth, and the ridge rail is sequentially fed in the length direction while the pinion-shaped roller meshes with the rack-shaped teeth. In this case, one of the two movable rollers is configured as a pinion-shaped roller, and the outer peripheral surface of the other movable roller is configured to have a circular shape, and the outer peripheral surface is in contact with the outer surface of the rack-shaped tooth. It is good to be constituted as follows.

In the above-described sewing apparatus, the sewing needle is configured to move up and down at a required position on a line connecting a center of the stationary roller and a contact portion between the stationary roller and the ridge rail. When the side surface of the strip rail on the side where the movable roller is pressed against is sent at a speed substantially equal to the sewing speed of the sewing machine, the sewing machine needle is aligned with the side surface on which the movable roller is pressed against the line. It is preferable to be configured to move up and down at a substantially intersection position.

In each of the above-described sewing apparatuses, it is preferable that the pressing direction of the movable roller is set substantially parallel to a line connecting the center of the stationary roller and a contact portion between the stationary roller and the ridge rail. .

In each of the above-described sewing apparatuses, the center of the stationary roller and the stationary roller are moved so that the sewn portion of the workpiece supported by the receiving table is fed in the set sewing direction of the sewing needle. It is preferable that a line connecting a roller and a contact portion of the ridge rail is substantially perpendicular to a sewing direction of the sewing needle while the ridge rail is being fed by a feeder. In this case, the two movable rollers are preferably arranged symmetrically with respect to the stationary roller.

According to another aspect of the present invention, there is provided a copying and sewing apparatus provided with a copying device below or above a receiving stand for supporting a workpiece to be sewn, and the copying device is supported by the receiving stand. The sewing machine is provided with a ridge rail conforming to a sewing locus when a sewing needle performs required sewing on a workpiece, and a feed device for sequentially feeding the ridge rail. The feeder includes one stationary roller and one movable roller disposed so as to sandwich the ridge rail, and the stationary roller is pressed against one side surface of the ridge rail. On the other hand, the movable roller is configured to be in a state of being pressed against the other side surface of the ridge rail, and the movable roller is configured to be pressed by a biasing action of biasing means. . In addition, when the at least one of the stationary roller and the movable roller is forcibly rotated, the feeder sequentially feeds the ridge rail in the length direction thereof, thereby supporting the ridge rail. The sewn portion of the sewn article follows the shape of the ridge rail in the longitudinal direction and is sequentially introduced into the sewing needle.

In each of the above-described sewing apparatuses, it is preferable that the stationary roller is a roller having a metal peripheral surface, and the movable roller is a roller having a resin peripheral surface.

In each of the above-described sewing apparatuses, when the ridge rail is curved, the radius of the movable roller or the fixed roller pressed against the curved side surface is set to be smaller than the radius of curvature of the curved portion. Good.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] Referring to FIGS. 1 and 2, a sewn sewing apparatus 1 according to the present invention includes a sewing machine 2 (for example, a fabric 2a).
As shown in FIG. 1 by a dashed line, and as shown in FIG. 5, supported from below, for example, below the pedestal 3 in the form of a rounded square plate,
The copying device 6 is provided with, for example, four connecting members 5 projecting downward.

In the copying apparatus 6, for example, a sewing needle 10 (FIG. 5) is sewn on a lower surface 9 of a substrate 7 in the form of a rounded square plate on a cloth 2a supported by the receiving table 3. Sewing locus at the time (trajectory A shown by a dashed line in FIG. 6 (A))
And the feeder 12 sequentially feeds the ridge rail 11.

In this embodiment, for example, as shown in FIG. 6, rounded corners are continuously sewn to the edge portion 13 of the airbag in the circumferential direction (the sewn state is shown by a dashed line in FIG. 6). The protruding rail 11 is formed in the shape of a rounded square ring so that
Are set so as to match the sewing locus A. In addition, the ridge rail 11 is a floating member 1.
5 is fixed to the lower surface 9 of the substrate 7. On the lower surface 9 of the substrate 7, a rolling support 17 is provided on the inner side of the ridge rail 11 at a required interval in the circumferential direction as shown in FIGS. And the substrate 7
The rolling support 17 can freely move in the two-dimensional direction on the support base 19 by rolling on the upper surface 20 of the support base 19.

As shown in FIGS. 1 to 4 and FIG. 7, the feeder 12 is provided on the outside of the ridge rail 11.
Fixed rollers 21 and two movable rollers 22, 22 disposed on the left and right sides of the fixed rollers 21 (left and right as viewed in the length direction of the projected rails) inside the projected rails 11.
With In the present embodiment, the two movable rollers 22 are arranged symmetrically with respect to the stationary roller 21 in order to enable stable feeding of the ridge rail 11. The stationary roller 21 and the movable rollers 22 and 22 can rotate about a vertical axis, and the stationary roller 21 is in pressure contact with the outer side surface 23 of the ridge rail 11.

The movable rollers 22, 22 are configured to be in pressure contact with the side surface portion 14 inside the protruding rail 11, and the pressure contact between the movable rollers 22, 22 is performed by the urging means 25. This is performed by the urging action.

In the present embodiment, in consideration of the fact that the stationary roller 21 is directly related to the positioning of the sewing portion 26 with respect to the sewing needle 10, the stable positioning is performed over a long period of time. The stationary roller 21
Is configured as a roller with a metal peripheral surface to prevent wear.

On the other hand, the movable rollers 22, 22 are configured as rollers having a resin peripheral surface such as urethane rubber so that the ridge rail 11 can be reliably fed without slipping by securing sufficient frictional resistance. I have. Since the position regulation is ensured by the stationary roller, even if the roller on the peripheral surface of the resin is worn, the position regulation is not affected.

The stationary roller 21 and the movable rollers 22 and 2
2 and the opposite side portions 23, 1 of the ridge rail 11.
4 and 3 show a specific configuration in which the pressure contact state is set to 4. In these figures, reference numeral 27 denotes a stationary roller mounting member fixed to the lower surface 9 of the substrate 7, and a rotating shaft 30 of the stationary roller 21 is supported by a bearing 29 provided at a tip portion thereof.

In FIGS. 2 and 3, reference numeral 31 denotes a movable roller mounting member, the base end portion 32 of which is provided on the substrate 7.
The pivot 35 of the mounting member 33 fixed to the machine frame a little away from
Is mounted so as to be rotatable in a horizontal plane. The rotating shafts 39, 40 of the two movable rollers 22, 22 are supported by left and right bearings 36, 37 provided at the tip of the movable roller mounting member 31. An air cylinder 41 is arranged on the lower surface side of the stationary roller mounting member 27 along the length direction thereof. A rear end portion 42 of the air cylinder 41 is pivotally mounted on a mounting piece 43 provided at a base end portion of the stationary roller mounting member 27 so as to be rotatable in a horizontal plane, and as shown in FIGS. , The rod end portion 45 is connected to the end portion 46 of the movable roller mounting member 31.
Are rotatably mounted in a horizontal plane.

The air pressure of the air cylinder 41 presses the movable rollers 22 and 22 against the inner side surface portion 14 of the ridge rail 11 with an urging action. As shown in FIG. 7, the pressure contact direction is set so as to be substantially parallel to a line 50 connecting a center 47 of the stationary roller 21 and a contact portion 49 between the stationary roller 21 and the ridge rail 11. I have.

A belt 53 is wound around pulleys 51, 52 provided on the rotating shafts of the two movable rollers 22, 22, and another pulley 55 provided on the rotating shaft of one movable roller 22a, Motor 5 provided on mounting member 33
A belt 60 is wound around a pulley provided on the rotation shaft of No. 6, and the rotation of the motor 56 causes the belts 60 and 53 to rotate.
, The movable rollers 22 are forcedly rotated as required.

Due to this forced rotation of the movable rollers 22, 22, the ridge rails 11 sandwiched between the movable rollers 22, 22 and the stationary roller 21 are sequentially fed in the length direction. FIG. 7 shows a state in which the feeding device 12 is feeding the straight portion 61 of the ridge rail 11, and FIG. 8 shows a state in which the feeding device 12 is feeding the curved portion 62 of the ridge rail 11. It is. In the state in which the curved portion 62 is being fed, the movable roller supporting member 31 moves from the state shown by the two-dot chain line to the state shown by the one-dot chain line in FIG. The left and right movable rollers 22 and 22 are slightly rotated to move the left and right movable rollers 22 and 22 into the side surface portion 1 inside the curved portion 62.
As a result, the pressure contact state is assuredly achieved, and the feed device 12 feeds the ridge rail 11. As shown in FIG. 8, the radius of curvature of the side portion 14 inside the curved portion 62 must be larger than the radius of the movable roller 22, but when the radius of curvature of the inside side portion is relatively small,
The problem can be solved by reducing the diameter of the movable roller or setting the distance between the centers of the movable rollers to be small.

In the present embodiment, the rotational speed of the movable rollers 22, 22 is made to substantially match the sewing speed of the sewing machine. 14 is configured to be fed at a speed substantially equal to the sewing speed of the sewing machine.

In the present embodiment, two sewing needles 10 are provided inside and outside as shown in FIGS. 5 and 7 to 8, and one of the sewing needles 10a is provided at the center 4 of the stationary roller 21.
7 and a line 50 connecting the stationary roller 21 and the contact portion 49 between the ridge rail 11 and the movable roller 2.
2 moves up and down at the crossing position with the inner side surface portion 14 in the pressed state, and another one 10b is on the line 50 and in the thickness direction of the ridge rail 11 (the thickness is For example, about 1
(Approximately 0 mm). In the present embodiment, the line 50 is fed by the ridge rail 11 so that the sewing portion 26 is introduced in the sewing direction F (FIGS. 7 and 8) of the set sewing needle 10. While being fed by the device 12, the sewing machine is configured to be substantially orthogonal to the sewing direction of the sewing needles 10, 10.

The sewn material 2 as the fabric 2a constituting the airbag is shown by a dashed line in FIG. 11 and is supported on the receiving stand 3 as shown in FIG.
Sewing is started with the sewn portion 26 projecting from the sewing machine set in the sewing portion 65 of the sewing machine, and
When the sewing machine 2 is actuated, the sewn portion 26 follows the shape of the ridge rail 11 in the longitudinal direction, is sequentially introduced from the straight portion 61 to the curved portion 62, and further to the straight portion 61, and the sewing is performed. The portion 26 is sewn continuously in the circumferential direction.

In this sewing, as described above, the side surface portion 14 on the inner side of the ridge rail is fed at a speed substantially equal to the sewing speed of the sewing machine, and one sewing needle 10 a is moved to the center of the stationary roller 21. The vertical movement occurs at a crossing position between the inner side surface portion 14 on a line 50 connecting the fixed roller 47 and the contact portion 49 between the stationary roller 21 and the ridge rail 11 and in which the movable roller 22 is in a pressed state. And the other one 10b is
Since it is configured to move up and down on the line 50 and at an intermediate position in the thickness direction of the ridge rail 11, the clogging causes the sewing needles 10a and 10b to move between the center of the stationary roller and the stationary roller. Since the movable roller is configured to move up and down on the line 50 connecting the roller and the contact portion of the ridge rail and at a substantially intersecting position with the side surface portion in which the movable roller is in a pressed state, FIG. As shown in FIG.
2 feeds the straight portion 61 of the ridge rail 11 as well as the curved portion 62 as shown in FIGS.
6B, the interval between the stitches 66, 66 by both sewing needles is substantially constant over the entire circumference of the sewing portion, as shown in FIG. Will be performed.

In the present embodiment, the feeder 12 is connected to the 1
A configuration comprising two stationary rollers 21 and two movable rollers 22, 22 symmetrically arranged with respect to the stationary rollers 21 is adopted, and these rollers are formed by the side portions 23, 14 so as to be in a pressure contact state, as shown in FIGS.
The position of the ridge rail 11 is surely regulated by the two-point support of 2, 22. Then, as described above, the sewing needles 10 and 10 are arranged at required intervals on the line 50 connecting the center 47 of the stationary roller 21 and the contact portion 49 between the stationary roller 21 and the ridge rail 11. At the same time, since the line 50 is configured to be substantially perpendicular to the sewing direction of the sewing needle 10, the sewing portion 26 is smoothly introduced in the original feeding direction of the sewing machine, and accurate sewing can be performed. As shown in FIG. 6B, the interval L between the stitch rows 67, 67 by the sewing needles 10, 10 is substantially constant, as shown in FIG. Note that the stitch row 67 is indicated by a dashed line in FIG. 6A for convenience, and is indicated by a chain line in FIG. 6B.

By the way, in the sewing machine, the sewing direction of the needle is set so as not to be forced. By sewing in this direction, the skipping phenomenon that the stitch is not formed over one or several stitches is suppressed. While the upper thread and the lower thread are entangled, a seam can be formed reliably.
Needless to say, the sewing machine can perform sewing even if the sewing portion is introduced in a direction different from the original optimal sewing direction, but since the sewing direction is different from the optimal introduction direction, the entanglement of the upper thread and the lower thread is not possible. , The degree of tightening of the seam becomes uneven depending on the introduction direction, and it is difficult to obtain reliable and stable sewing. On the other hand, according to the present invention, since the sewn portion is configured to be fed in the sewing direction of the sewing needle, there is an advantage that the seam can be stably fastened and stable sewing with less skipping can be ensured.

[Second Embodiment] FIGS. 11 to 12 show another embodiment of a sewn sewing apparatus 1 according to the present invention. The configuration in which the copying device 6 is disposed on the lower side via, for example, four connecting members 5 protruding downward is the same as that in the first embodiment.

What is different is that, in this embodiment, the sewing locus A shown by a dashed line in FIG. 13 is not closed in the circumferential direction as in the above-described embodiment, but has a discontinuous end, for example, an Ω-shape. In that the ridge rail 11 is formed in a form that matches the sewing locus A. The shape of the edge 63 of the receiving table 3 is similar to the bent shape of the ridge rail 11.

The ridge rail 11 having the above-described structure is provided on the lower surface side of the substrate 7 via a floating member 15 through the lower surface 1 of the substrate.
6 is provided at a position slightly apart therefrom. And FIG.
As shown in FIG. 14, the outer side surface portion 23 of the ridge rail 11 is formed as a smooth surface, but the inner side surface portion 1 is formed.
4, the rack-shaped teeth 69 are integrally provided in the length direction of the ridge rail.

Then, the ridge rail 1 having such a configuration is provided.
1, a stationary roller 21 having the same configuration as that described above is disposed, and a first movable roller 22 a as a pin-on roller that can mesh with the rack-shaped teeth 69, and an outer peripheral surface inside the protruding rail 11. 70 has a smooth circular shape, and the second movable roller 22b which is in contact with the outer surface 71 of the rack-shaped tooth is disposed. The stationary roller 21 and the movable rollers 22a, 22b are outside and inside of the ridge rail 11. Are configured to be in pressure contact with the side portions 23 and 14 respectively. Means for making such a pressure contact state include:
As in the first embodiment, as shown in FIG. 12, a stationary roller support member 27 and a movable roller support member 31 are provided.
And the air cylinder 41, and the first movable roller 22a is
The forcible rotation is required as required by the 0 drive.

However, as shown in FIG.
The sewing is started in the initial sewing state in which one end side 72 of the first feeding device 12 is introduced into the feeding device 12, but the first movable roller 22a is forcibly rotated, so that the feeding device 12 The rails 11 are sequentially fed in the length direction. Thereby, the sewn portion 26 of the sewn object 2 supported by the receiving table 3 is sequentially introduced into the sewing machine needle 10 in the longitudinal direction of the ridge rail 11, and the curved portion of the ridge rail is provided. Through the sewing in the feed state of 73 (for example, the state shown in FIG. 16), the sewing is sequentially performed from the one end 72 to the other end 74 of the ridge rail on the sewing locus. FIG. 17 shows a state in which the sewing is completed. Thereafter, the substrate 7 is returned to the initial sewing state by the reverse rotation of the motor 56, and the next sewing is performed.

In this embodiment, only one of the two movable rollers 22a is configured as a pin-on roller, the other movable roller 22b is a roller having a circular outer peripheral surface, and the outer peripheral surface 70 is formed in a rack shape. Since it is configured to contact the outer surface 71 of the tooth 69, smooth engagement is also performed at the curved portion 62 of the ridge rail 11.

[Third Embodiment] FIGS. 18 and 19 show another embodiment of the trail sewing apparatus 1 according to the present invention. This is a case in which the device 12 is configured to include one stationary roller 21 and one movable roller 22 arranged with the ridge rail 11 interposed therebetween.

The stationary roller 21 and the movable roller 22 are
The stationary roller supporting member 27 which is brought into pressure contact with the outer side surface portion 23 and the inner side surface portion 14 of the ridge rail 11, and presses the movable roller 22 with the same configuration as described above.
And the urging means 25 (FIGS. 2 and 3) including the movable roller support member 31 and the air cylinder 41. The movable roller 22 is moved by the motor 56 to the belt 6.
0 (FIGS. 2 and 3), the feed device 12 is configured to feed the ridge rail 11 in its length direction by forcibly rotating through the ridge rail 11. Then, in the same manner as in the first embodiment, the sewn portion of the sewn object supported by the receiving table 3 follows the shape of the ridge rail 11 in the longitudinal direction and is sequentially attached to the sewing needle. It is configured to be introduced.

[Other Embodiments] (1) In the present invention, it is preferable to dispose the copying device 6 below the receiving table 3 because it is hard to hinder sewing, but there is no hindrance to sewing. As long as it is provided, it may be arranged above the cradle 3.

(2) In the case where the copying device 6 is arranged below the pedestal 3, the connecting member 5 and the substrate 7 are omitted and the ridge rail 11 is directly provided on the lower surface of the pedestal 3. It may be.

(3) The form of the ridge rail 11 can be set to various forms other than those described above, closed in the circumferential direction or interrupted at both ends. The ridge rail may be formed only in a straight line.

(4) In the above-described embodiment, the stationary roller 21 and the movable roller 22 are configured to be in pressure contact with the inner and outer side surface portions 14 and 23 of the ridge rail 11. The arranged ridges make up the ridge rail according to the present invention, the stationary roller comes into pressure contact with the outer side of one of the ridges, and the outer side of the other ridge. You may comprise so that a movable roller may be in a pressure contact state.

(5) Sewing needle 1 for ridge rail 11
0, as shown in the above embodiment, the movable roller is located on a line 50 connecting a center 47 of the stationary roller 21 and a contact portion 49 between the stationary roller 21 and the ridge rail 11. 22 is a ridge rail side surface portion 14 in a pressed state.
Is preferably set at a position substantially intersecting with the above, since the same sewing pitch can be obtained in the curved sewing portion as in the straight-line sewing portion, and good-looking and reliable sewing can be achieved. In order to increase sewing accuracy, at least the line 5
0 and the thickness of the ridge rail (for example, about 10
(approximately mm). If the appearance of the sewing state is not regarded as a problem, the ridge rail 11 is used.
May be set out of the range.

(6) When the number of movable rollers is set to one,
The movable roller may be configured as a pin-on roller as shown in FIG. The rack-shaped teeth may be formed by attaching a timing belt.

(7) When rack-shaped teeth are provided on the ridge rail, only the stationary rollers may be configured as rack-shaped teeth.

(8) In the present invention, the material to be sewn 2 may be made of a leather material or other material in addition to the cloth.

(9) The roller to be forcibly rotated may be at least one of a stationary roller and a movable roller.

(10) As the urging means 25 for pressing the movable roller 22 against pressure, for example, as shown in FIG. 20, a center 47 of the stationary roller 21 and a contact portion 49 between the stationary roller 21 and the ridge rail 11 are provided. This can be performed by using an urging unit that moves back and forth in parallel with the line 50 connecting In this case, in addition to using the air cylinder 41 having the same configuration as the above, the urging means 25 may be configured by applying spring urging means such as a coil spring or other means. In the same figure, the left and right movable rollers 22, 22 are forcibly rotated by the rotation of the belt 77 by the motor 76.

(11) For example, by providing an opening in the receiving table and placing the sewing object on the receiving table so as to cover the opening, it is possible to perform the required sewing on the sewing section at the opening. .

(12) The two movable rollers 22 and 22 may be pressed independently of each other.

[0052]

The present invention has the following excellent effects. (1) The profile sewing device according to the present invention is provided with a profile device on a lower side or an upper side of a cradle for supporting a workpiece, and a sewing locus when the sewing machine needle performs a required sewing. And a feeder for sequentially feeding the ridge rail. Therefore, the control mechanism can be simplified as compared with the conventional numerical control apparatus which numerically controls the amount of movement of the movable member in the X direction and the Y direction and the rotation angle of the rotary plate. The production cost can be reduced without requiring expensive parts. Furthermore, the movement of the control device can be suppressed as small as possible as compared with the device that controls in the X direction and the Y direction. Therefore, the copying and sewing device can be made compact and the installation space can be reduced. Moreover, since the movement of the control device can be suppressed as small as possible,
The work of setting the work to be sewn on the cradle is also facilitated, and simplification and efficiency of sewing can be achieved. Further, since the movable roller is pressed by the urging action of the urging means, the movable roller can always be kept in a pressure-contact state even in a portion where the ridge rail is curved, and reliable sewing can be performed. .

(2) By setting the line connecting the center of the stationary roller and the contact portion between the stationary roller and the ridge rail to be substantially perpendicular to the sewing direction of the set sewing needle, As a result, a stable sewing operation in which jumping or the like hardly occurs can be obtained.

(3) In particular, the feed device is configured to include one stationary roller and two movable rollers disposed on the left and right of the stationary roller, so that a ridge rail formed by three rollers is provided. By the position regulating action, the sewing portion of the sewing object can be introduced in a direction substantially orthogonal to a line connecting the center of the stationary roller and the contact portion between the stationary roller and the ridge rail. As a result, the sewing portion can be introduced into the sewing needle in a fixed direction without meandering, stabilization of stitches can be achieved, and the appearance of sewing with the sewing needle can be improved. In this case, when arranging a plurality of sewing needles at a required interval on the line, it is possible to secure a substantially constant interval between the stitch rows and to improve the appearance of sewing by each sewing needle. For example, when sewing an airbag, even if partial stitching occurs due to sewing with one sewing needle, the safety as an airbag can be secured by reliable sewing with the other sewing needle.
Sewing can be ensured.

(4) When the side of the ridge rail on the side where the movable rail is pressed against is fed at a speed substantially equal to the sewing speed of the sewing machine, the sewing needle is moved to the center of the stationary roller and the stationary roller. By configuring the movable roller to move up and down on the line connecting the contact portion with the ridge rail and at a substantially intersection position with the side portion of the ridge rail in which the movable roller is pressed, even when sewing a curved portion, The sewing can be performed at the same stitch pitch as in the case of the sewing of the linear portion, and the tightness of the stitches can be made uniform to improve the stability of sewing.

(5) By adopting a configuration in which the side portions of the ridge rail are formed in rack-like teeth and a movable roller serving as a pin-on roller is meshed with the rack-like teeth, slippage occurs in the ridge rail. It is possible to send without fail. In this case, as shown in FIG. 14, only one of the two movable rollers 22a is configured as a pin-on roller, the other movable roller 22b is a roller having a circular outer peripheral surface, and its outer peripheral surface 70 is formed as a rack-shaped tooth 69. Outer surface 75
, Smooth meshing is also performed at the curved portion 62 of the ridge rail 11.

(6) When the inner and outer side surfaces of the ridge rail are smooth, a roller whose outer peripheral surface is made of metal is used as the stationary roller, and a roller whose outer peripheral surface is made of resin is used as the movable roller. Thus, by preventing the stationary roller from being worn, a position where the sewing machine moves up and down can be continuously and correctly secured, while preventing slippage and reliably feeding the ridge rail.

(7) When the movable roller is arranged on the left and right sides of the stationary roller, by disposing the movable roller symmetrically with respect to the stationary roller, extremely stable feeding can be performed and the accuracy can be improved. Sewing can be performed.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a profile sewing apparatus according to the present invention.

FIG. 2 is a perspective view showing a copying apparatus.

FIG. 3 is a plan view showing a copying apparatus.

FIG. 4 is a side view showing the copying apparatus.

FIG. 5 is a cross-sectional view showing a sewing portion using a sewing needle.

FIG. 6 is a plan view showing a state where an edge portion of the airbag is sewn.

FIG. 7 is an explanatory view showing a state in which a curved portion of a ridge rail is fed.

FIG. 8 is an explanatory view showing a state in which a curved portion of the ridge rail is fed.

FIG. 9 is an explanatory view showing a state in which a linear portion of a ridge rail is fed.

FIG. 10 is an explanatory view showing a state in which a curved portion of a ridge rail is fed.

FIG. 11 is a perspective view showing another embodiment of the sewing apparatus according to the present invention.

FIG. 12 is a plan view illustrating the copying apparatus.

FIG. 13 is a plan view showing a state in which sewing is performed on a workpiece.

FIG. 14 is a perspective view illustrating a feeder in which a first movable roller as a pinion-shaped roller meshes with a rack-shaped ridge rail.

15 is a plan view showing a state of the copying and sewing apparatus shown in FIG. 11 at the start of sewing.

FIG. 16 is a plan view showing a feed state of a ridge rail during sewing of the copying and sewing apparatus shown in FIG. 11;

17 is a plan view showing a state of the copying and sewing apparatus shown in FIG. 11 at the time of completion of sewing.

FIG. 18 is a plan view showing another embodiment of the copying and sewing apparatus according to the present invention in a state in which a linear portion of a ridge rail is fed.

FIG. 19 is a plan view showing the profile sewing apparatus in a state in which a curved portion of a ridge rail is fed.

FIG. 20 is a plan view showing another mode of the urging means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sewing device 2 Sewing material 3 Receiving stand 6 Tracing device 10 Sewing machine needle 12 Feeding device 14 Inner side part of ridge rail 21 Stationary roller 22 Movable roller 23 Outer side part of ridge rail 25 Energizing means 26 Coated Sewing part 46 Center of fixed roller 49 Contact part 69 Rack tooth

Claims (11)

[Claims] A tracing device is provided below or above a pedestal for supporting a workpiece from below, and the tracing device comprises:
The sewing machine includes a ridge rail that matches a sewing locus when the sewing needle performs required sewing on a workpiece supported by the receiving table, and a feed device that sequentially feeds the ridge rail. Has one stationary roller disposed so as to sandwich the ridge rail, and two movable rollers disposed on the left and right of the stationary roller, wherein the stationary roller is one of the ridge rails. The movable roller is configured to be in a state of being pressed against the other side surface of the ridge rail, while the movable roller is in a state of being pressed against the side surface of the ridge rail. In addition, when at least one of the stationary roller and the two movable rollers is forcibly rotated, the feeding device sequentially feeds the ridge rail in the length direction thereof, whereby On the cradle Sewing parts of the lifting been workpiece is,
The profile sewing apparatus according to claim 1, characterized in that the ridge rails are successively introduced into a sewing needle according to a shape in a length direction of the ridge rail. 2. A tracing device is provided below or above a pedestal for supporting a workpiece from below, and the tracing device comprises:
The sewing machine includes a ridge rail that matches a sewing locus when the sewing needle performs required sewing on a workpiece supported by the receiving table, and a feed device that sequentially feeds the ridge rail. Comprises one stationary roller disposed so as to sandwich the ridge rail, and two movable rollers disposed to the left and right of the stationary roller, wherein the stationary roller is one of the ridge rails. The movable roller is configured to be in pressure contact with the other side surface of the ridge rail while the movable roller is in pressure contact with the side surface, and the movable roller is pressed by the urging action of the urging means. When at least one of the two movable rollers is forcibly rotated, the feeding device sequentially feeds the ridge rail in the length direction thereof, whereby Supported by a table The sewn portion of the sewing product is sequentially introduced into the sewing machine needle following the shape of the length of the ridge rail, and the sewing machine needle is provided with the center of the stationary roller, the stationary roller and the projecting roller. A sewing apparatus which moves up and down at a required position on a line connecting a contact portion with a strip rail. 3. A rack-shaped tooth is provided on a side surface of the ridge rail along a length direction of the ridge rail, and the movable roller or the stationary roller to be forcibly rotated is attached to the rack-shaped tooth. Pinion-shaped rollers that engage
While the pinion-shaped roller meshes with the rack-shaped teeth,
3. The sewing apparatus according to claim 1, wherein the ridge rails are sequentially fed in a length direction thereof. 4. One of the two movable rollers is configured as a pinion-shaped roller, and the outer peripheral surface of the other movable roller has a circular shape, and the outer peripheral surface is in contact with the outer surface of the rack-shaped tooth. The sewing apparatus according to claim 3, wherein the sewing apparatus is a sewing machine. 5. When the side surface of the ridge rail on which the movable roller is pressed against is fed at a speed substantially equal to the sewing speed of the sewing machine, the sewing machine needle moves the center of the stationary roller and the stationary roller. 3. The movable roller moves up and down on a line connecting a contact portion with the ridge rail and at a substantially intersecting position with a side surface portion where the movable roller is in a pressure contact state.
The sewing apparatus according to any one of claims 1 to 4. 6. A pressing direction of the movable roller is set substantially parallel to a line connecting a center of the stationary roller and a contact portion between the stationary roller and the ridge rail. The sewing device according to any one of claims 1 to 5, wherein 7. A center of the stationary roller, the stationary roller, and the ridge rail so that a sewn portion of the sewn object supported by the receiving stand is sent in a set sewing direction of a sewing needle. A line connecting the contact portion of the sewing machine and the sewing rail of the sewing machine while the ridge rail is being fed by a feeder.
6. The sewing apparatus according to claim 6, wherein 8. The sewing apparatus according to claim 7, wherein the two movable rollers are arranged symmetrically with respect to the stationary roller. 9. A tracing device is provided below or above a cradle for supporting a sewing object from below, and the tracing device is provided with:
The sewing machine includes a ridge rail that matches a sewing locus when the sewing needle performs required sewing on a workpiece supported by the receiving table, and a feed device that sequentially feeds the ridge rail. Comprises one stationary roller and one movable roller disposed so as to sandwich the ridge rail, and the stationary roller comes into pressure contact with one side surface of the ridge rail. The movable roller is configured to be in pressure contact with the other side surface of the ridge rail, and the movable roller is configured to be pressed by an urging action of urging means; When at least one of the roller and the movable roller is forcibly rotated, the feed device sequentially feeds the ridge rail in the length direction thereof, and thereby, the workpiece to be sewn supported by the receiving table. The sewn part of Wherein following the length direction of the shape of the protrusion rails have if is characterized in that so as to be successively introduced into the sewing needle sewing device. 10. The apparatus according to claim 1, wherein said stationary roller is a roller having a metal peripheral surface, and said movable roller is a roller having a resin peripheral surface.
The sewing apparatus according to any one of claims 1 to 4. 11. When the ridge rail is curved,
The sewing apparatus according to any one of claims 1 to 9, wherein a radius of the movable roller or the fixed roller pressed against the curved side surface is set to be smaller than a radius of curvature of the curved portion.