JP4769536B2 - Sewing machine with buttons - Google Patents

Description

  The present invention relates to a sewing machine with a button.

Conventionally, the sewing product is held under the button in a folded state, and a sewing needle is moved up and down in the button hole and the folded portion to form a so-called rake seam, and the button is sewn to the sewing product. 2. Description of the Related Art A button sewing machine that performs root winding (root winding sewing) around a formed root thread is known (see, for example, Patent Document 1).
JP 2003-164679 A

By the way, there is a shirt called button down. The button-down shirt is designed to fasten the tip of the table to the body with a small button. The button for stopping the tip of the table is sewn to the body by the above-described rake stitching. A reinforcing cloth is sewed on the back side of the button sandwiching the body so that the button is not easily detached from the body.
However, in the conventional button-attached sewing machine, it was difficult to sew the buttons with the button-attached sewing machine because the buttons could not be sewn together with the force cloth by rake sewing.

  Accordingly, the present invention has been made to solve the above-described problems. In a button-down shirt, a button and a sewing machine that can sew a button and a blanket by rake sewing and can automate the sewing. The purpose is to provide.

  In order to solve the above-described problems, the invention described in claim 1 is directed to a button holding mechanism that holds a button below a sewing needle that moves up and down, and a rear side below the button held by the button holding mechanism. A cloth holding member that holds the sewing product in a folded state by a tip portion that extends toward the vicinity of the vertical movement path of the sewing needle, and intersects the vertical movement direction of the sewing needle with respect to the cloth holding member. A cloth moving mechanism that relatively moves in the direction and a looper that captures a sewing thread from the lowered sewing needle to form a loop, and the sewing needle is moved up and down at a folded portion of the sewing product held by the cloth holding member. In the button sewing machine for sewing the button held by the button holding mechanism, the front end portion of the cloth holding member is positioned together with the sewing product by positioning a force cloth on the inner side of the sewing product. Wherein the webbing holding member for holding the webbing as can be wrapped over between the tip portion.

According to the first aspect of the invention, since the cloth holding member is provided with the force cloth holding member, the sewing product is folded back by the tip of the cloth holding member in the vicinity of the vertical movement path of the sewing needle. When holding the webbing, the webbing holding member holds the webbing between the front end portion so that the webbing is positioned inside the product to be sewn and can be folded back together with the product to be sewn through the front end portion.
Accordingly, it is possible to provide a button sewing machine that can sew a sewing machine held by a button holding mechanism, a sewing object held by a cloth holding member, and a force cloth held by a cloth holding member with a rake seam. it can. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  According to a second aspect of the present invention, in the button-attached sewing machine according to the first aspect, the baffle holding member has an operation unit that is operated by an operator. According to an operation situation, the posture changes to a posture for holding the bundling and a posture for releasing the held bundling.

According to the second aspect of the present invention, by changing the operation state of the operator, the bedding holding member is changed to a posture for holding the bedding and a posture for releasing the held bedding.
Thus, the operator can attach and detach the embroidery simply by operating the operation part of the embroidery holding member, and does not require a separate member for operating the embroidery holding member. Can be reduced.

  According to a third aspect of the present invention, in the button-attached sewing machine according to the second aspect, the baffle holding member has a rotation fulcrum portion rotatably attached to the cloth holding member. The member changes according to the operation state of the operation portion, to a posture for rotating the pivotal fulcrum portion as a fulcrum and holding the baffle and a posture for releasing the held baffle. .

According to the invention described in claim 3, by changing the operation state of the worker, the baffle holding member rotates about the rotation fulcrum portion as a fulcrum, and holds and holds the baffle. The posture changes to release.
Thus, the operator can attach and detach the embroidery simply by operating the operation part of the embroidery holding member, and does not require a separate member for operating the embroidery holding member. Can be reduced.

  According to a fourth aspect of the present invention, in the buttoned sewing machine according to the first or second aspect, the webbing holding member is formed of an elastic member that is elastically deformed by an operator's operation. One end is fixed to the cloth holding member, and the other end is a free end.

According to the invention described in claim 4, the operator can elastically deform the baffle holding member by operating the other end of the baffle holding member, and the posture and the bundling held are held. The posture can be changed to release.
Thus, the operator can attach and detach the webbing only by operating using the elasticity of the webbing holding member, and does not require a separate member for operating the webbing holding member. The score can be reduced. Therefore, parts management can be facilitated.

  According to a fifth aspect of the present invention, in the button-attached sewing machine according to the first aspect, the baffle holding member is provided at a distal end portion of the cloth holding member so that a gap capable of holding the baffle is formed. It is characterized by being.

According to the fifth aspect of the present invention, when the operator holds the bundling on the bundling holding member, the operator simply pushes the bundling into the gap formed between the bundling holding member and the cloth holding member. Good.
Thereby, it is not necessary to operate the bundling holding member in order to change the posture to hold the bundling and the posture to release the held bundling. Therefore, the operation burden on the operator can be reduced.

  According to a sixth aspect of the present invention, in the buttoned sewing machine according to the fifth aspect, the force cloth holding member and the cloth holding member are integrally formed.

  According to the sixth aspect of the present invention, the bundling holding member and the cloth holding member can be produced at the same time by integrally forming the bundling holding member and the cloth holding member, thereby reducing the production process and the production line. Can do. Further, since the number of parts can be reduced, parts management can be facilitated.

  According to the first aspect of the present invention, the button held by the button holding mechanism, the workpiece to be sewn held by the cloth holding member, and the cloth held by the force cloth holding member can be sewn with a sewing machine with a button. it can. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  According to the second aspect of the present invention, the operator can attach and detach the webbing only by operating the operation part of the webbing holding member, and a separate member for operating the webbing holding member. Since it is not necessary, the number of parts can be reduced.

  According to the third aspect of the present invention, the operator can attach and detach the webbing only by operating the operation part of the webbing holding member, and a separate member for operating the webbing holding member. Since it is not necessary, the number of parts can be reduced.

  According to the fourth aspect of the present invention, the operator can attach and detach the webbing only by operating using the elasticity of the webbing holding member, and a separate operator for operating the webbing holding member. Since no member is required, the number of parts can be reduced. Therefore, parts management can be facilitated.

  According to the fifth aspect of the present invention, it is not necessary to operate the bundling holding member in order to change the posture to hold the bundling and the posture to release the held bundling. Therefore, the operation burden on the operator can be reduced.

  According to the sixth aspect of the present invention, the bundling holding member and the cloth holding member can be produced at the same time, and the production process and production line can be reduced. Further, since the number of parts can be reduced, parts management can be facilitated.

Hereinafter, the best mode of a button sewing machine will be described in detail with reference to the drawings.
[Embodiment 1]
<Configuration of sewing machine with buttons>
FIG. 1 shows a schematic configuration of the appearance of the buttoned sewing machine 1 together with a block diagram of a control circuit, and FIG. 2 shows a perspective view of a portion where buttoning is performed in the buttoned sewing machine 1. is there. The button sewing machine 1 includes a bed 11, a vertical trunk 12 standing on the bed 11, and an arm 13 extending from the vertical trunk 12 to face the bed 11. . In the following description, the front-rear direction and the up-down direction of the buttoned sewing machine 1 are as shown in FIG. 1, and are defined as the Y-axis direction and the Z-axis direction, respectively. Further, the direction perpendicular to the paper surface of FIG. 1 is the left-right direction (X-axis direction), the front surface side of the paper surface is the right side, and the back surface side of the paper surface is the left side.

The buttoned sewing machine 1 is fixed to the tip of a needle bar 14 provided at the tip of the arm portion 13, and is provided so as to face the sewing needle 15 in the bed portion 11 and a sewing needle 15 through which a thread is passed. A button is automatically sewn to the cloth in cooperation with a looper (not shown). The looper is provided below a needle plate having a needle hole through which the sewing needle 15 is inserted, and forms a seam for chain stitching in cooperation with the sewing needle 15. Since the formation of the seam such as the operation of the looper is a well-known technique, a detailed description thereof is omitted.
The button-attached sewing machine 1 can perform various button-attached sewings by independently transporting buttons and cloths independently.

(Needle vertical movement mechanism)
The needle bar 14 is moved up and down via a crank mechanism with a spindle motor 16 that moves the sewing needle 15 up and down in the Z-axis direction as a drive source. The needle bar 14 is supported so as to move up and down by a needle bar support that can swing around the Y-axis direction (front-rear direction). Therefore, the needle bar 14 can swing the sewing needle 15 held at its lower end while moving up and down along the X-axis direction (left-right direction). The needle bar support swings the needle bar 14 in a direction substantially perpendicular to the vertical movement direction of the needle bar 14 (X-axis direction), and causes the sewing needle 15 to fall on both sides of the root thread with a predetermined swing width. The needle swing motor 17 is used as a drive source. The needle swing motor 17 is driven and controlled in synchronism with the spindle motor 16 so as to be at the bottom dead center when the sewing needle 15 is positioned at both ends of the swing when the needle swing motor 17 is driven. Further, the needle swing motor 17 swings the needle bar 14 so as to drop the needle with a predetermined swing width on both sides of the root thread for sewing the button to the cloth.

(Button holding mechanism)
The button holding mechanism 25 holds the button below the sewing needle that moves up and down. The button holding mechanism 25 includes a button holding arm 18, an upper Y feed motor 19, a vertical drive motor 20, a chuck mechanism 21, a differential motor 22, and the like.
The button is supported by the lower part of the middle part of the arm part 13 and held by a button holding arm 18 whose tip part extends to the vicinity of the vertical movement path of the sewing needle 15. The button holding arm 18 is supported at the base end of the button holding arm 18 so as to be movable along the Y-axis direction with respect to the arm portion 13 and is driven by the upper Y-feed motor 19 in the Y-axis direction. ing.
Further, the button holding arm 18 is supported so that its base end portion can swing around the X-axis direction, and a vertical drive motor 20 is provided at the base end portion. The buttons held on the tip side of the button holding arm 18 by the vertical drive motor 20 can move up and down.

A chuck mechanism 21 is disposed between the needle bar 14 and the needle plate at the tip of the button holding arm 18 and holds the button sewn on the cloth with the root thread in a state where the button surface is perpendicular to the needle plate. (See FIG. 2) is provided, and the button is held so as to sandwich the button from both sides in the left-right direction.
The chuck mechanism 21 is mounted at the tip of the button holding arm 18 so as to be rotatable about the left-right direction, and the angle can be switched in a range of 90 degrees by a rotating cylinder 23 operated by air. Yes. That is, the rotary cylinder 23 can be switched between a normal holding position where the chuck mechanism 21 holds the button horizontally and an upright holding position where the bottom surface of the button stands up frontward. When the button is in the horizontal state, rake sewing or solid stitching is performed, and when the button is in the standing state, root winding sewing is performed.
The chuck mechanism 21 is also provided with a differential motor 22 for moving and positioning the button in the X-axis direction with respect to the button holding arm 18 via the chuck mechanism 21. By controlling the differential motor 22, the button can be positioned at an arbitrary position in the X-axis direction.

Next, the structure of the bed part 11 is demonstrated.
As shown in FIG. 2, the distal end portion of the bed portion 11 is provided with a distal end portion 30 a that extends backward to the vicinity of the vertical movement path of the sewing needle 15 below the button held by the button holding mechanism 25. A tongue 30 as a cloth holding member that holds the workpiece in a folded state, a clamping member 31 that holds the cloth with the tongue 30 at the cloth holding position, and a cloth held by the tongue 30 A first cloth presser 32 that is pressed and held from above and a tongue moving mechanism 33 that rotates the tongue 30 about the axis in the X-axis direction are provided.

(Tang)
As shown in FIGS. 3 and 4, the tongue 30 is a member curved in an arm shape, and its base end portion rotates around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported freely.
Further, the tip 30a of the tongue 30 holds the button to be sewn in a state where the button is to be sewn at the time of rake sewing, and when the root winding sewing is performed after the rake sewing is formed, the cloth is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The tip portion 30a is formed in a substantially flat plate shape, and is formed in a substantially wedge shape whose thickness decreases toward the tip. Moreover, the front-end | tip part 30a is set so that the flat plate surface may be in the state along XY plane in the holding position.
In the vicinity of the tip 30a of the tongue 30, an insertion hole 30h is formed for allowing the forceps holding plate 3 to be described later to pass therethrough.

Further, a semicircular cutout 30 b is formed at the tip end portion 30 a, and the cutout 30 b is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The structure prevents the interference between the portion 30a and the sewing needle 15.
On the tongue 30, the webbing C is held between the front end 30a so that the webbing C can be positioned inside the sewing product W and folded together with the sewing product W via the front end 30a of the tongue 30. A webbing holding plate 3 as a webbing holding member is provided.

(Force cloth holding plate)
The baffle holding plate 3 is a plate material that is long in one direction, one end of which is attached to the tongue 30 by a screw 3n, and the other end is inserted through the insertion hole 30h of the tongue 30 from below to above. Yes. The webbing holding plate 3 is formed of an elastic member that is elastically deformed by an operator's operation, specifically, an operator's pressing. Here, as an elastic member, metal plates, such as a steel plate which deform | transforms larger than the thickness of a bedding by the pressing force of an operator, are preferable. Of course, a shape memory alloy, a super elastic alloy, or the like may be used.

The baffle holding plate 3 includes a fixing portion 3a fixed to the tongue 30 by a screw 3n, an operation portion 3b that is curved with respect to the fixing portion 3a, and applies force when an operator operates, An insertion portion 3c that is bent in a direction opposite to the bending direction of the operation portion 3b with respect to the fixed portion 3a and is inserted into the insertion hole 30h of the tongue 30, and an insertion portion with respect to the insertion portion 3c. A holding portion 3d that is bent in a direction opposite to the bending direction of the operation portion 3b of 3c and holds the webbing C with the tip portion 30a of the tongue 30.
When the fixing portion 3a is fixed to the tongue 30, the holding portion 3d presses the upper surface of the tongue 30 with its own elastic force. At this time, the force with which the holding portion 3d presses the upper surface of the tongue 30 is larger than the minimum pressing force that can hold the webbing C, and can be easily removed when the sewing product is removed from the tongue 30 after the button is attached. It is preferable to suppress the pressing force to such an extent that can be performed.
The force cloth refers to a small cloth that is used to reinforce a portion where buttons and snaps are sewn, and is sewn on the back side of the button attachment position in, for example, a button-down shirt.

  Here, the frame 34 and the tongue 30 are supported by the rear body of the bed portion 11 so as to be movable in the Y-axis direction, and are moved and positioned in the front-rear direction in synchronization with the button holding arm 18 by the lower Y feed motor 35. It is possible. That is, the button holding arm 18 and the frame 34 are driven by the upper Y-feed motor 19 and the lower Y-feed motor 35, respectively, but the button holding arm 18 and the frame 34 are synchronized while maintaining the distance in the front-rear direction. Then move forward and backward. Accordingly, the frame 34 moves back and forth together with the button holding arm 18 and functions as a cloth moving mechanism that moves relative to the tongue 30 in the direction intersecting the vertical direction of the sewing needle 15.

The tongue moving mechanism section 33 is provided on the positive X-axis direction side of the frame 34 disposed along the bed section 11, and has a tongue cylinder 38 that moves the output rod 37 forward and backward to drive the tongue 30, and one end portion thereof. A tongue link 39 attached to one end portion of the output rod 37 so as to be rotatable around the axis in the X-axis direction and having the other end portion fixed to the proximal end portion of the tongue 30 on the rotation center side. .
The tongue moving mechanism 33 moves the tongue 30 to the cloth holding position and the holding release position by driving the tongue cylinder 38 under the control of the electrical box 101 (see FIG. 1) as a control device. Switching is possible. Specifically, the cloth 30 is positioned on the vertical movement path of the sewing needle 15 by rotating the tongue 30 around the axis in the X-axis direction via the tongue link 39 by the advancement and retraction of the output rod 37 ( The position of the front end portion 30a of the tongue 30 can be switched between a release position where the cloth is held and separated from the vertical movement path of the sewing needle 15 (see FIG. 2).
Here, the tongue cylinder 38 applies a driving force for moving the tongue 30 between the cloth holding position and the release position.

  Note that when the tongue sensor 36 detects a turning operation in the direction toward the holding position of the tongue 30 located at the release position based on the manual operation of the operator, the tongue cylinder is controlled under the control of the electrical box 101. 38 can be driven to automatically set the tip 30a to be positioned below the sewing needle 15.

(Control system for sewing machine with buttons)
Next, the control circuit of the button sewing machine 1 will be described with reference to FIG. The button-equipped sewing machine 1 is provided with an electrical box 101 that controls the drive of each of the above-described driving devices, and each part is connected to the electrical box 101.
An operation panel 103, a power switch 104, a start pedal 105, and a temporary stop switch 106 are connected to the electrical equipment box 101.
The operation panel 103 allows the operator to select the type of button attachment from rake sewing without root winding stitch, rake root winding sewing, lower button sewing, sticky sewing, etc., and input sewing conditions for the selected button sewing Or a set sewing condition or sewing status is displayed. An external memory 103a can be connected to the operation panel 103, and sewing conditions can be set by reading sewing data from the external memory 103a. Conversely, various sewing conditions input from the operation panel 103 can be stored in the external memory 103a.

Further, the electrical box 101 is provided with a CPU 102 that performs arithmetic processing based on a control program or the like. The CPU 102 is connected to a memory 102a, and various programs such as a control program are stored in the memory 102a. . For example, the sewing control program for buttoning is stored in the memory 102a.
The power switch 104 is an ON / OFF switch for turning on the button sewing machine 1. The start pedal 105 is a pedal that is operated when sewing is started, and when this is operated, sewing is started under the control of the CPU 102. The temporary stop switch 106 is a switch for temporarily stopping after starting sewing.

Further, an interface (not shown) is provided in the electrical box 101, and a control signal from the CPU 102 is output to each drive source via the interface and a drive circuit (not shown).
That is, the spindle motor 16, the needle swing motor 17, the upper Y feed motor 19, the vertical drive motor 20, the differential motor 22, and the frame 34 are approximately connected to the needle bar 14 in the vertical movement direction and the needle swing direction via the interface. A lower Y feed motor 35 that drives in the front-rear direction, which is an orthogonal direction, and an upper Y feed motor 19 that moves the button holding arm 18 in the front-rear direction are connected. Further, an electromagnetic valve 108 is connected via an interface, and the rotary cylinder 23, the tongue cylinder 38 and the presser foot cylinder 26 are connected via this electromagnetic valve 108. Further, the button-equipped sewing machine 1 is provided with a thread trimming mechanism (not shown) so that the thread is cut at a predetermined timing during or after sewing, and a thread trimming motor 27 or a thread trimming cylinder is used as a driving source. 28 is provided.

The root winding button sewing machine 1 having the above-described configuration moves the button in the X-axis direction by driving the differential motor 22, and moves in the Y-axis direction by driving the upper Y-feed motor 19. The Z-axis direction can be performed by driving the vertical drive motor 20.
Further, the cloth can be moved in the Y direction together with the frame 34 by driving the lower Y feed motor 35. In addition, the needle drop position of the sewing needle 15 can be positioned in the X-axis direction by driving the needle swing motor 17 that swings the needle bar 14 in the X-axis direction.
That is, the needle swing motor 17, the upper Y feed motor 19, the differential motor 22, and the lower Y feed motor 35 cooperate with each other to hold the button held by the button holding arm 18 and the cloth held by the tongue 30. The needle drop position of the sewing needle 15 is relatively positioned. Further, the lower Y feed motor 35 can also retract the tongue 30 from the sewing needle 15.

<Holding force holding operation by the power holding plate>
Next, the holding operation of the blanket by the blanket holding plate will be described.
In the state shown in FIG. 3A, when the operator presses the operation portion 3b of the baffle holding plate 3 upward, the baffle holding plate 3 has a boundary between the fixed portion 3a and the operation portion 3b. Bends upward as a fulcrum. Thereby, the holding | maintenance part 3d which was pressing the front-end | tip part 30a of the tongue 30 will leave | separate from the front-end | tip part 30a, and will be in the state which can pinch the webbing C.
With the operator pressing the operation portion 3b upward, the webbing C is placed between the tip portion 30a of the tongue 30 and the holding portion 3d. In placing the webbing C, as shown in FIGS. 3C and 3D, about half of the webbing C is placed on the tip 30a and the other half is projected from the tip 30a. Placed on.
And the force which an operator presses the operation part 3b after mounting | wearing with the webbing C is released. Thereby, the bedding holding plate 3 is restored to its original position by the elastic force. At the time of restoration, the holding portion 3d sandwiches the webbing C placed on the upper surface of the tip portion 30a of the tongue 30. Accordingly, the webbing C can be held by the tip portion 30a and the holding unit 3d of the tongue 30 by the elastic force of the webbing holding plate 3.

When the button B and the force cloth C are sewn on the workpiece W after the force cloth C is held by the force cloth holding plate 3, as shown in FIG. The sewing material W is wound around the lower surface side of the baffle holding plate 3 by turning back at the front end portion 30a, and the tongue 30 is driven to the holding position. By wrapping the workpiece W, the webbing C previously held on the webbing holding plate 3 is folded back from the upper surface side of the webbing holding plate 3 together with the material to be sewn W at the tip 30a of the tongue 30 to hold the webbing. It is wound on the lower surface side of the plate 3.
The sewing product W and the force cloth C are clamped by the clamping member 29 and the tip 30a of the tongue 30, and while maintaining this state, the sewing needle 15 is moved up and down to rake the button B by the sew sewing. And sew to force cloth C.

<Effect>
According to the buttoned sewing machine 1 in the first embodiment, since the forceps holding plate 3 is provided on the tongue 30, the sewing product W is moved by the tip 30 a of the tongue 30 in the vicinity of the vertical movement path of the sewing needle 15. When holding the folded cloth in the folded state, the leading cloth holding plate 3 positions the leading cloth C so that the leading cloth 30 can be folded together with the workpiece W via the distal end portion 30a. It holds between the part 30a.
As a result, the button B held by the button holding mechanism 25, the workpiece W held by the tongue 30, and the force cloth C held by the force cloth holding plate 3 can be sewn by scooping with the button sewing machine 1. it can. Therefore, even in a sewn product that needs to sew the power cloth C, for example, a button-down shirt, the button and the power cloth can be sewn with a single button sewing machine, and the sewing can be automated.

  Further, by changing the operation state of the operator, the webbing holding plate 3 changes into a posture for holding the webbing C and a posture for releasing the held webbing C. As a result, the operator can attach and detach the webbing C only by operating the operation part 3 b of the webbing holding plate 3, and does not need a separate member for operating the webbing holding plate 3. The number of parts can be reduced.

  Further, the operator can elastically deform the webbing holding plate 3 by operating the other end of the webbing holding plate 3, and the posture for holding the webbing C and the posture for releasing the webbing C held. Can be changed. Thereby, the operator can attach and detach the webbing C only by operating using the elasticity of the webbing holding plate 3, and does not need a separate member for operating the webbing holding plate 3. Therefore, the number of parts can be reduced. Therefore, parts management can be facilitated.

[Embodiment 2]
Next, a button sewing machine according to the second embodiment will be described. The difference between the button-attached sewing machine in the second embodiment and the button-attached sewing machine in the first embodiment is the configuration of the tongue and the webbing holding member. Therefore, these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 5, the tongue 40 is a member that is curved in the shape of an arm, and its base end portion is rotatable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
In addition, the tip 40a of the tongue 40 holds the button in a state where the cloth to be sewn is bent at the time of rake sewing, and when the root winding sewing is performed after the rake sewing is formed, the cloth is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The tip end portion 40a is formed in a substantially flat plate shape and is formed in a substantially wedge shape whose thickness decreases toward the tip end. Moreover, the front-end | tip part 40a is set so that the flat plate surface may be in the state along XY plane in the holding position.

A semicircular cutout 40b is formed at the front end portion 40a of the tongue 40, and the cutout 40b of the tongue 40 is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The structure is such that interference between the tip 40a and the sewing needle 15 is avoided.
On the side of the tongue 40 in the vicinity of the front end portion 40a, an insertion hole 40h for attaching the webbing holding plate 4 is formed. Two ribs 40c and 40d are formed in the insertion hole 40h so as to rotatably connect the webbing holding plate 4. The ribs 40c and 40d are formed with insertion holes 40e and 40f through which the rotation shaft 41 serving as the rotation fulcrum portion of the baffle holding plate 4 is inserted.
The tongue 40 has a force cloth holding member that holds the force cloth between the front end portion 40a so that the power cloth is positioned inside the sewing object and can be folded back together with the sewing object via the front end portion 40a of the tongue 40. A baffle holding plate 4 is provided.

(Force cloth holding plate)
The baffle holding plate 4 is a plate material formed in a substantially L shape in plan view, and is formed from a metal plate having rigidity that does not elastically deform when a force is applied by an operation (pressing) by an operator.
Two ribs 4 a and 4 b are formed at one end portion 4 f of the forceps holding plate 4 so as to be rotatably connected to the tongue 40. The ribs 4a and 4b are formed with insertion holes 4c and 4d through which the rotation shaft 41 serving as a rotation fulcrum portion of the baffle holding plate 4 is inserted. On the other hand, a semicircular cutout 4e is formed at the other end 4g of the force cloth holding plate 4, and this cutout is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The notch 4 e has a structure that avoids interference between the baffle holding plate 4 and the sewing needle 15.

The forceps holding plate 4 has the ribs 40c of the tongues 40 facing the ribs 4a and the ribs 40d of the tongues 40 facing the ribs 4b, and the insertion holes 4c, 4d, 40e, 40f are arranged on a straight line. The rotation shaft 41 is inserted through the insertion holes 4c, 4d, 40e, and 40f. The rotating shaft 41 is provided with a torsion spring 42 and urges the rotating shaft 41 to rotate in one direction around the axis. Specifically, the torsion spring 42 urges the rotation shaft 41 so that the other end portion 4 g of the baffle holding plate 4 presses the upper surface of the tip end portion 40 a of the tongue 4. Therefore, in FIG. 5, the rotation shaft 41 is biased so as to rotate clockwise as viewed from the right side in the drawing. At this time, the force with which the other end 4g of the webbing holding plate 4 presses the upper surface of the tongue 40 is larger than the minimum pressing force capable of holding the webbing, and the sewing product is removed from the tongue 40 after the button is attached. It is preferable to keep the pressing force at such a level that it can be easily removed.
Further, E-rings 43 and 44 are provided at both ends of the rotation shaft 41 so that the rotation shaft 41 does not come out of the insertion holes 4c, 4d, 40e, and 40f.
Further, since the webbing holding plate 4 rotates with the rotary shaft 41 as the rotation fulcrum, the operation unit for the operator to perform the operation of holding and releasing the webbing is closer to the proximal end than the rotation shaft 41. That is, it becomes the one end portion 4f.

<Holding force holding operation by the power holding plate>
Next, the holding operation of the blanket by the blanket holding plate will be described.
In the state shown in FIG. 5A, when the operator presses one end (operation part) 4 f of the baffle holding plate 4 downward, the baffle holding plate 4 rotates the rotation shaft 41. It rotates as a fulcrum part, and the other end part 4g of the baffle holding plate 4 moves upward. As a result, the other end 4g that has pressed the front end 40a of the tongue 40 is separated from the front end 40a, and a blanket can be sandwiched.
In the state where the operator presses the one end 4 f downward, the bedding is placed between the tip 40 a of the tongue 40 and the other end 4 g of the bedding holding plate 4. In placing the bundling, about half of the bundling is placed on the tip portion 40a, and the remaining half is placed so as to protrude from the tip portion 40a.
And the force which an operator presses the one end part 4f after mounting | wearing with a baffle is released. Thereby, the bedding holding plate 4 is restored to its original position by the elastic force. At the time of this restoration, the other end 4g sandwiches the webbing placed on the upper surface of the tip 40a of the tongue 40. As a result, the elastic fabric of the webbing holding plate 4 can hold the webbing between the tip 40 a of the tongue 4 and the other end 4 g of the webbing holding plate 4.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the button-attached sewing machine in the second embodiment, since the tongue 40 is provided with the baffle holding plate 4, the sewing product is folded back by the tip 40 a of the tongue 40 in the vicinity of the vertical movement path of the sewing needle 15. When holding in the state, the baffle holding plate 4 is positioned between the front end portion 40a and the front end portion 40a so that the bundling is positioned inside the sewing product and folded together with the sewing product via the front end portion 40a. Hold.
As a result, the button held by the button holding mechanism 25, the workpiece held by the tongue 40, and the webbing held by the webbing holding plate 4 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  Further, by changing the operation state of the operator, the baffle holding plate 4 is changed into a posture for holding the bundling and a posture for releasing the held bundling. As a result, the operator can attach and detach the bedding only by operating one end (operation part) 4f of the bedding holding plate 4, and a separate member for operating the bedding holding plate 4 is required. Therefore, the number of parts can be reduced.

Further, by changing the operation state of the operator, the baffle holding plate 4 rotates about the rotation fulcrum portion 41 as a fulcrum, and changes into a posture for holding the bunt and a posture for releasing the held bundling. To do.
As a result, the operator can attach and detach the webbing only by operating the operation portion 4f of the webbing holding plate 4, and does not require a separate member for operating the webbing holding plate 4. The number of parts can be reduced.

[Embodiment 3]
Next, a button sewing machine according to the third embodiment will be described. The difference between the button-attached sewing machine in the third embodiment and the button-attached sewing machine in the first embodiment is the configuration of the tongue and the webbing holding member. Therefore, these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 6, the tongue 50 is a member that is curved in an arm shape, and its base end portion is pivotable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
Further, the tip 50a of the tongue 50 holds the button to be sewn in a state where the cloth to be sewn is bent at the time of rake sewing, and when the root winding sewing is performed after the rake sewing is formed, the cloth is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The tip portion 50a is formed in a substantially flat plate shape, and is formed in a substantially wedge shape whose thickness decreases toward the tip. Moreover, the front-end | tip part 50a is set so that the flat plate surface may be in the state along XY plane in the holding position.

A semicircular cutout 50b is formed at the tip 50a of the tongue 50, and the cutout 50b of the tongue 50 is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The structure is such that interference between the tip 50a and the sewing needle 15 is avoided.
An insertion hole 50 h for attaching the webbing holding plate 5 is formed in the vicinity of the tip 50 a of the tongue 50. Two ribs 50c and 50d are formed in the insertion hole 50h so as to rotatably connect the webbing holding plate 5. The ribs 50c and 50d are formed with insertion holes 50e and 50f through which the rotation shaft 51 serving as a rotation fulcrum portion of the baffle holding plate 5 is inserted.
The tongue 50 has a force cloth holding member that holds the force cloth between the front end portion 50a and the front end portion 50a so that the power cloth can be folded back through the front end portion 50a of the tongue 50 together with the sewing material. A baffle holding plate 5 is provided.

(Force cloth holding plate)
The baffle holding plate 5 is a plate material formed in a substantially rectangular shape, and is formed of a metal plate having rigidity that does not elastically deform when a force is applied by an operation (pressing) by an operator.
Two ribs 5 a and 5 b are formed near the one end portion 5 f of the forceps holding plate 5 so as to be pivotably connected to the tongue 50. The ribs 5a and 5b are formed with insertion holes 5c and 5d through which the rotation shaft 51 serving as a rotation fulcrum portion of the baffle holding plate 5 is inserted. On the other hand, a semicircular cutout 5e is formed at the other end portion 5g of the baffle holding plate 5, and this cutout is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The notch 5 e has a structure that avoids interference between the baffle holding plate 5 and the sewing needle 15.

The baffle holding plate 5 has the ribs 50c of the tongue 50 facing the ribs 5a and the ribs 50d of the tongue 50 facing the ribs 5b, and the insertion holes 5c, 5d, 50e, 50f are arranged in a straight line. The rotation shaft 51 is inserted through the insertion holes 5c, 5d, 50e, and 50f. The rotating shaft 51 is provided with a torsion spring 52 and urges the rotating shaft 51 to rotate in one direction around the axis. Specifically, the torsion spring 52 urges the rotating shaft 51 so that the other end portion 5 g of the baffle holding plate 5 presses the upper surface of the tip end portion 50 a of the tongue 5. Accordingly, in FIG. 6, the rotation shaft 51 is urged to rotate counterclockwise when viewed from the left side in the drawing. At this time, the force with which the other end portion 5g of the baffle holding plate 5 presses the upper surface of the tongue 50 is larger than the minimum pressing force capable of holding the baffle, and the sewing product is removed from the tongue 50 after the button is attached. It is preferable to keep the pressing force at such a level that it can be easily removed.
Further, E-rings 53 and 54 are provided at both ends of the rotation shaft 51 so that the rotation shaft 51 does not come out of the insertion holes 5c, 5d, 50e, and 50f.
Further, since the baffle holding plate 5 rotates with the rotation shaft 51 as a rotation fulcrum portion, the operation portion where the operator performs the operation of holding and releasing the baffle is closer to the proximal end than the rotation shaft 51. That is, it becomes the one end portion 5f.

<Holding force holding operation by the power holding plate>
Next, the holding operation of the blanket by the blanket holding plate will be described.
When the operator presses one end portion (operation portion) 5f of the baffle holding plate 5 downward, the baffle holding plate 5 rotates using the rotation shaft 51 as a rotation fulcrum portion to hold the baffle. The other end 5g of the plate 5 moves upward. Thereby, the other end part 5g which has pressed the front-end | tip part 50a of the tongue 50 will leave | separate from the front-end | tip part 50a, and will be in the state which can pinch a blanket.
In a state where the operator presses the one end portion 5 f downward, a bedding is placed between the leading end portion 50 a of the tongue 50 and the other end portion 5 g of the bedding holding plate 5. In placing the bundling, about half of the bundling is placed on the tip 50a, and the remaining half is placed so as to protrude from the tip 50a.
And the force which an operator presses the one end part 5f after mounting | wearing with a blanket is released. Thereby, the bedding holding plate 5 is restored to its original position by the elastic force. At the time of this restoration, the other end portion 5g sandwiches the webbing placed on the upper surface of the front end portion 50a of the tongue 50. Accordingly, the webbing can be held by the tip 50 a of the tongue 50 and the other end 5 g of the webbing holding plate 5 by the elastic force of the webbing holding plate 5.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the button-attached sewing machine in the third embodiment, since the tongue 50 is provided with the baffle holding plate 5, the sewing product is folded back by the tip 50a of the tongue 50 in the vicinity of the vertical movement path of the sewing needle 15. When holding in the state, the baffle holding plate 5 is positioned between the front end 50a so that the batter can be positioned inside the sewing product and folded together with the sewing product via the front end 50a. Hold.
As a result, the button held by the button holding mechanism 25, the workpiece to be sewn by the tongue 50, and the webbing held by the webbing holding plate 5 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  Further, by changing the operation state of the operator, the bedding holding plate 5 is changed into a posture for holding the bedding and a posture for releasing the held bedding. As a result, the operator can attach and detach the bedding only by operating one end (operation part) 5f of the bedding holding plate 5, and a separate member for operating the bedding holding plate 5 is required. Therefore, the number of parts can be reduced.

Further, by changing the operation state of the operator, the baffle holding plate 5 is rotated about the rotation fulcrum portion 51 as a fulcrum, and is changed into a posture for holding the bundling and a posture for releasing the held bundling. To do.
As a result, the operator can attach and detach the webbing only by operating the operation portion 5f of the webbing holding plate 5, and does not require a separate member for operating the webbing holding plate 5. The number of parts can be reduced.

[Embodiment 4]
Next, a button sewing machine according to the fourth embodiment will be described. The difference between the button-attached sewing machine in the fourth embodiment and the button-attached sewing machine in the first embodiment is the configuration of the tongue and the webbing holding member. Therefore, these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 7, the tongue 60 is a member that is curved in the shape of an arm, and the base end portion of the tongue 60 is rotatable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
In addition, the tip 60a of the tongue 60 holds the button to be sewn in a state where the button is to be sewn at the time of rake stitching, and also when the root winding sewing is performed after the rake stitch is formed, It is held in a folded state at the knot portion of the formed root thread. The distal end portion 60a is formed in a substantially flat plate shape, and is formed in a substantially wedge shape whose thickness decreases toward the distal end. Moreover, the front-end | tip part 60a is set so that the flat plate surface may be in the state along XY plane in the holding position.

A semi-circular cutout 60 b is formed at the tip 60 a of the tongue 60, and the cutout 60 b of the tongue 60 is used when performing button sewing by rake sewing on the cloth mounted in a folded state. It has a structure that avoids interference between the distal end portion 60 a and the sewing needle 15.
An insertion hole 60h is formed in the vicinity of the tip 60a of the tongue 60 for bending and elastically deforming the webbing holding plate 6. The width L1 of the insertion hole 60h is formed so as to be wider than the width L2 of the webbing holding plate 6. When the webbing holding plate 6 is bent and elastically deformed, the webbing holding plate 6 is inserted into the insertion hole. There is no contact with 60h. Further, a screw hole 60i for attaching the webbing holding plate 6 with a screw 6n is formed on the base end side of the tongue 60 of the insertion hole 60h.
The tongue 60 has a force cloth holding member that holds the force cloth between the front end portion 60a and the front end portion 60a of the tongue 60 so that it can be folded back together with the sewing object through the front end portion 60a. A webbing holding plate 6 is provided.

(Force cloth holding plate)
The webbing holding plate 6 is a plate material formed in a substantially rectangular shape, and is formed of an elastic member that is elastically deformed by an operation (pressing) by an operator. Here, the elastic member may be a metal plate such as a steel plate that is deformed to be larger than the thickness of the bedding by the pressing force of the operator. Of course, a shape memory alloy, a super elastic alloy, or the like may be used.
A screw hole 6h for attaching the webbing holding plate 6 to the tongue 60 with a screw 60n is formed in one end portion 6f of the webbing holding plate 6. On the other hand, a semi-circular cutout 6e is formed at the other end 6g of the baffle holding plate 6, and this cutout is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The notch 6e has a structure that avoids interference between the baffle holding plate 6 and the sewing needle 15.

The baffle holding plate 6 is attached to the tongue 60 by screwing the screws 6 n into the screw holes 6 h of the baffle holding plate 6 and the screw holes 60 i of the tongue 60. That is, the baffle holding plate 6 has one end 6f as a fixed end and the other end 6g as a free end.
The webbing holding plate 6 is formed sufficiently longer than the length of the insertion hole 60h. That is, it is formed in such a length that the other end portion 6g of the webbing holding plate 6 is not drawn into the insertion hole 60h when the operator presses the webbing holding plate 6.
Further, when the baffle holding plate 6 is attached to the tongue 60, it is elastically deformed when the operator presses the portion 6p corresponding to the upper part of the insertion hole 60h. The operation part that performs the operation is a portion 6p that is slightly closer to the base end than the center in the length direction of the webbing holding plate 6, that is, above the insertion hole 60h.

<Holding force holding operation by the power holding plate>
Next, the holding operation of the blanket by the blanket holding plate will be described.
When the operator presses the operation portion (a portion corresponding to the upper portion of the insertion hole 60h) 6p of the baffle holding plate 6 downward, the operation portion 6p of the baffle holding plate 6 is bent downward. The other end 6g of the holding plate 6 moves upward with the side edge of the insertion hole 60h as a fulcrum. As a result, the other end 6g of the webbing holding plate 6 is separated from the tip 60a of the tongue 60, and the webbing C can be sandwiched as shown in FIG.
In the state where the operator presses the operation portion 6p downward, the wadding is placed between the tip end portion 60a of the tongue 60 and the other end portion 6g of the wadding holding plate 6. In placing the bundling, about half of the bundling is placed on the tip 60a, and the remaining half is placed so as to protrude from the tip 60a.
And the force which an operator presses the operation part 6p after placement of a wadding is released. Thereby, the webbing holding plate 6 is restored to its original position by the elastic force. At the time of this restoration, the other end 6 g sandwiches the webbing placed on the upper surface of the tip 60 a of the tongue 60. As a result, the webbing can be held by the tip 60 a of the tongue 60 and the other end 6 g of the webbing holding plate 6 by the elastic force of the webbing holding plate 6.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the button-attached sewing machine in the fourth embodiment, since the tongue 50 is provided with the baffle holding plate 5, the sewing product is folded back by the tip 60a of the tongue 60 in the vicinity of the vertical movement path of the sewing needle 15. When holding in the state, the baffle holding plate 6 is positioned between the front end portion 60a and the front end portion 60a so that the bundling can be positioned inside the sewn product and folded together with the sewn product via the front end portion 60a. Hold.
As a result, the button held by the button holding mechanism 25, the sewing object held by the tongue 60, and the webbing held by the webbing holding plate 6 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  Further, by changing the operation status (pressed and released) of the operator, the bedding holding plate 6 is changed into a posture for holding the bedding and a posture for releasing the held bedding. As a result, the operator can attach and detach the bedding only by operating the operation portion 6p of the bedding holding plate 6, and does not require a separate member for operating the bedding holding plate 6. The score can be reduced.

[Embodiment 5]
Next, a button sewing machine according to the fifth embodiment will be described. Note that the buttoned sewing machine in the fifth embodiment is different from the buttoned sewing machine in the first embodiment in the configuration of the tongue and the webbing holding member. Therefore, these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 8, the tongue 70 is a member that is curved in an arm shape, and its base end portion is rotatable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
In addition, the tip 70a of the tongue 70 holds the button to be sewn in a state where the button is to be sewn at the time of rake sewing, and when the root winding sewing is performed after the rake sewing is formed, the cloth is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The distal end portion 70a is formed in a substantially flat plate shape and is formed in a substantially wedge shape whose thickness decreases toward the distal end. Moreover, the front-end | tip part 70a is set so that the flat plate surface may be in the state along XY plane in the holding position.

A semi-circular cutout 70 b is formed at the tip 70 a of the tongue 70, and the cutout 70 b of the tongue 70 is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The structure is such that interference between the tip 70a and the sewing needle 15 is avoided.
The tongue 70 has a force cloth holding member for holding the force cloth between the front end portion 70a so that the force cloth is positioned inside the sewing object and can be folded together with the sewing object via the front end portion 70a of the tongue 70. A baffle holding plate 7 is provided.

(Force cloth holding plate)
The force cloth holding plate 7 is a plate material formed in a substantially hat shape. Specifically, the baffle holding plate 7 includes a fixing portion 7a that is fixed to the tongue 70 by screws 7n, an operation portion 7b that applies force when an operator operates, and a tip portion 70a of the tongue 70. And a holding portion 7c that holds the blanket. Here, the operation portion 7b is bent upward at a substantially right angle with respect to the fixed portion 7a, and further bent at a substantially right angle so as to extend in the same direction as the surface direction of the fixed portion 7a. Further, it is bent downward at a substantially right angle to reach the holding portion 7c.
The webbing holding plate 7 is formed of an elastic member that is elastically deformed by an operator's operation, specifically, an operator's pressing. Here, the elastic member may be a metal plate such as a steel plate that is deformed to be larger than the thickness of the bedding by the pressing force of the operator. Of course, a shape memory alloy, a super elastic alloy, or the like may be used.
The baffle holding plate 7 is attached to the tongue 70 by screws 7n in the fixing portion 7a, and is arranged so that the front end of the holding portion 7c is substantially flush with the front end portion 70a of the tongue 70. That is, the baffle holding plate 7 has a fixed portion 7a which is one end as a fixed end and a holding portion 7c which is the other end as a free end. A semicircular cutout 7e is formed at the tip of the holding portion 7c of the force cloth holding plate 7, and this cutout is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The notch 7e has a structure that avoids interference between the baffle holding plate 7 and the sewing needle 15.

<Holding force holding operation by the power holding plate>
Next, the holding operation of the blanket by the blanket holding plate will be described.
As shown in FIG. 8C, when the operator presses the operation portion 7b of the baffle holding plate 7 downward, the operation portion 7b of the baffle holding plate 7 is bent downward. When the operation portion 7b bends downward, the fixing portion 7a tries to float upward with the boundary with the operation portion 7b as a fulcrum, but does not rise because it is fixed to the tongue 70 by the screw 7n. Further, since the holding portion 7c floats upward with the boundary with the operation portion 7b as a fulcrum, the holding portion 7c of the baffle holding plate 7 is separated from the distal end portion 70a of the tongue 70, as shown in FIG. It will be in the state which can pinch the webbing C.
In the state where the operator presses the operation portion 7 b downward, the wadding is placed between the tip portion 70 a of the tongue 70 and the holding portion 7 c of the wadding holding plate 7. In placing the bundling, about half of the bundling is placed on the tip 70a, and the remaining half is placed so as to protrude from the tip 70a.
And the force which an operator presses the operation part 7b after mounting | wearing with a blanket is released. Thereby, the bedding holding plate 7 is restored to the original position by the elastic force. At the time of this restoration, the holding portion 7 c sandwiches a webbing placed on the upper surface of the distal end portion 70 a of the tongue 70. Thereby, the elastic fabric can be held by the distal end portion 70 a of the tongue 70 and the holding portion 7 c of the elastic fabric holding plate 7 by the elastic force of the elastic fabric holding plate 7.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the button-attached sewing machine in the fifth embodiment, since the tongue 70 is provided with the baffle holding plate 7, the sewing product is folded back by the tip 70 a of the tongue 70 in the vicinity of the vertical movement path of the sewing needle 15. When holding in the state, the baffle holding plate 7 is positioned between the front end portion 70a and the front end portion 70a so that the bundling is positioned on the inner side of the sewn product and folded together with the sewn product via the front end portion 70a. Hold.
As a result, the button held by the button holding mechanism 25, the sewing object held by the tongue 70, and the webbing held by the webbing holding plate 7 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  Further, by changing the operation status (pressed and released) of the operator, the bedding holding plate 6 is changed into a posture for holding the bedding and a posture for releasing the held bedding. As a result, the operator can attach and detach the bedding only by operating the operation portion 7b of the bedding holding plate 7, and does not require a separate member for operating the bedding holding plate 7. The score can be reduced.

[Embodiment 6]
Next, a button sewing machine according to Embodiment 6 will be described. The difference between the button-attached sewing machine in the sixth embodiment and the button-attached sewing machine in the first embodiment is the configuration of the tongue and the baffle holding member. Therefore, these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 9, the tongue 80 is a member that is curved in an arm shape, and its base end portion is rotatable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
In addition, the tip 80a of the tongue 80 holds the button to be sewn in a state where the button is to be sewn at the time of rake sewing, and when the root winding sewing is performed after the rake sewing is formed, the cloth is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The distal end portion 80a is formed in a substantially flat plate shape and is formed in a substantially wedge shape whose thickness decreases toward the distal end. Moreover, the front-end | tip part 80a is set so that the flat plate surface may be in a state along the XY plane in the holding position.

A semicircular cutout 80b is formed at the tip 80a of the tongue 80, and the cutout 80b of the tongue 80 is used when performing button sewing by rake stitching on the cloth mounted in a folded state. The structure is such that interference between the tip 80a and the sewing needle 15 is avoided.
In the vicinity of the tip 80 a of the tongue 80, insertion holes 80 h and 80 i for inserting the webbing holding plate 8 are formed. In addition, screw holes 80k, 80p, and 80q for attaching the webbing holding plate 8 and the conversion plate 83 (described later) with screws 8n are formed in the vicinity of the insertion holes 80h and 80i.
The tongue 80 has a force cloth holding member for holding the force cloth between the front end portion 80a so that the force cloth is positioned inside the sewing object and can be folded back together with the sewing object via the front end portion 80a of the tongue 80. A baffle holding plate 8 is provided.

(Force cloth holding plate)
The webbing holding plate 8 is a plate material formed in a substantially rectangular shape in plan view, and is curved in the thickness direction at the center thereof. Specifically, the baffle holding plate 8 applies a force to the fixing portion 8a that is fixed to the tongue 80 by the screw 8n, the operation portion 8b that applies force when the operator operates, and the operation portion 8b. A converting portion 8c that outputs the applied force in a direction opposite to the applied direction, and a holding portion 8d that holds the forceps with the tip 80a of the tongue 80. Here, the operation portion 8b is curved and formed so as to be continuous with the fixed portion 8a and to be raised above the upper surface of the fixed portion 8a. Moreover, the conversion part 8c is curvingly formed so that it may continue from the operation part 8b, and may protrude below the lower surface of the fixing | fixed part 8a. Further, the holding portion 8d is formed so as to be continuous with the converting portion 8c, and the upper surface thereof is substantially flush with the upper surface of the fixed portion 8a.

The fixing portion 8a is formed with a screw hole 8k for attaching the webbing holding plate 8 to the tongue 80. A semicircular cutout 8e is formed at the tip of the holding portion 8d of the force cloth holding plate 8, and this cutout is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The notch 8 e has a structure that avoids interference between the baffle holding plate 8 and the sewing needle 15.
The baffle holding plate 8 is formed of an elastic member that is elastically deformed by an operator's operation, specifically, an operator's pressing. Here, the elastic member may be a metal plate such as a steel plate that is deformed to be larger than the thickness of the bedding by the pressing force of the operator. Of course, a shape memory alloy, a super elastic alloy, or the like may be used.
The baffle holding plate 8 is attached to the lower surface side of the tongue 80 by screwing the screws 8n into the screw holes 8k and 80k. At this time, the holding portion 8d is disposed so that the tip thereof is substantially flush with the tip portion 80a of the tongue 80. The baffle holding plate 8 is inserted into the tongue 80 so that the operation portion 8b is inserted into the insertion hole 80i and protrudes from the upper surface of the tongue 80, and the holding portion 8d is inserted into the insertion hole 80h and protrudes from the upper surface of the tongue 80. It is attached. That is, the baffle holding plate 8 has a fixed portion 8a as one end portion as a fixed end and a holding portion 8d as the other end portion as a free end.

The tongue 80 is attached with a conversion plate 83 that sandwiches the conversion portion 8 c with the lower surface of the tongue 80. The conversion plate 83 includes a fixing portion 81 fixed to the lower surface of the tongue 80 and a restriction portion 82 that restricts downward movement when the conversion portion 8c is elastically deformed. The fixing portion 81 is formed with screw holes 83p and 83q for inserting the screw 8n. The restricting portion 82 is bent downward from the fixed portion 81, and a space is formed between the upper surface of the restricting portion 82 and the lower surface of the tongue 80 when the conversion plate 83 is attached to the tongue 80. It is like that.
The conversion plate 83 is attached to the tongue 80 by screwing the screw 8n into the screw holes 83p and 83q and the screw holes 80p and 80q of the tongue 80.

<Holding force holding operation by the power holding plate>
Next, the holding operation of the blanket by the blanket holding plate will be described.
When the operator presses the operation portion 8b of the baffle holding plate 8 downward, the operation portion 8b of the baffle holding plate 8 is bent downward, and the conversion portion 8c is moved downward by the conversion plate 83. Therefore, it moves to the holding part 8d side. At this time, since the conversion part 8c is located below the holding part 8d, the holding part 8d moves upward with the contact surface with the restricting part 82 as a fulcrum. As a result, the holding portion 8d of the webbing holding plate 8 is separated from the tip 80a of the tongue 80, and the webbing C can be sandwiched as shown in FIG.
In a state where the operator presses the operation portion 8 b downward, a wadding is placed between the tip portion 80 a of the tongue 80 and the holding portion 8 d of the wadding holding plate 8. In placing the bundling, about half of the bundling is placed on the tip 80a, and the remaining half is placed so as to protrude from the tip 80a.
And the force which an operator presses the operation part 8b after mounting | wearing with a blanket is released. Thereby, the bedding holding plate 8 is restored to its original position by the elastic force. At the time of this restoration, the holding portion 8d sandwiches the bedding placed on the upper surface of the front end portion 80a of the tongue 80. As a result, the elastic fabric of the webbing holding plate 8 can hold the webbing between the tip 80 a of the tongue 80 and the holding unit 8 d of the webbing holding plate 8.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the buttoned sewing machine in the sixth embodiment, since the tongue 80 is provided with the baffle holding plate 8, the sewing product is folded back by the tip 80 a of the tongue 80 in the vicinity of the vertical movement path of the sewing needle 15. When holding in the state, the baffle holding plate 8 is positioned between the front end portion 80a and the front end portion 80a so that the bundling can be positioned inside the workpiece and folded together with the sewing subject via the front end portion 80a. Hold.
As a result, the button held by the button holding mechanism 25, the workpiece to be sewn held by the tongue 80, and the webbing held by the webbing holding plate 8 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  Further, by changing the operator's operation status (pressed, released), the bedding holding plate 8 changes into a posture for holding the bedding and a posture for releasing the held bedding. As a result, the operator can attach and detach the bedding only by operating the operation portion 8b of the bedding holding plate 8, and does not require a separate member for operating the bedding holding plate 8. The score can be reduced.

[Embodiment 7]
Next, a button sewing machine according to the seventh embodiment will be described. The difference between the button-attached sewing machine in the seventh embodiment and the button-attached sewing machine in the first embodiment is the configuration of the tongue and the webbing holding member, so that these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 10, the tongue 90 is a member that is curved in an arm shape, and its base end portion is rotatable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
Further, the tip 90a of the tongue 90 holds the button to be sewn in the state where the button is to be sewn at the time of rake stitching, and when the root winding sewing is performed after the rake stitch is formed, the fabric is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The tip portion 90a is formed in a substantially flat plate shape, and is formed in a substantially wedge shape whose thickness decreases toward the tip. Moreover, the front-end | tip part 90a is set so that the flat plate surface may be in the state along XY plane in the holding position.

A semi-circular cutout 90b is formed at the tip 90a of the tongue 90, and the cutout 90b of the tongue 90 is used when performing button sewing by rake sewing on the cloth mounted in a folded state. It has a structure that avoids interference between the distal end portion 90 a and the sewing needle 15.
The tongue 90 has a force cloth holding member that holds the force cloth between the front end portion 90a and the front end portion 90a of the tongue 90 so that the power cloth can be folded back through the front end portion 90a of the tongue 90. A blanket holding plate 9 is provided.

(Force cloth holding plate)
The baffle holding plate 9 is formed from a leaf spring as an elastic member that is elastically deformed by an operator's operation, specifically, an operator's pressing.
The baffle holding plate 9 is attached to the upper surface of the tongue 90 with a screw 9n at one end. That is, the baffle holding plate 9 has one end fixed to the screw 9n as a fixed end and the other end formed with the grip 9a as a free end. A part of the webbing holding plate 9 is formed to protrude from the tongue 90 in the surface direction. The protruding portion is a gripping portion 9a for the operator to pull up the webbing holding plate 9, and facilitates the lifting operation of the webbing holding plate 9.
A semicircular cutout 9e is formed at the front end portion 9f of the force cloth holding plate 9, and the cutout 9e is formed when button sewing is performed by rake sewing on the cloth mounted in a folded state. The structure is such that interference between the forceps holding plate 9 and the sewing needle 15 is avoided.

<Holding force holding operation by the power holding plate>
Next, the holding operation of the blanket by the blanket holding plate will be described.
When the operator grips the gripping portion 9a of the baffle holding plate 9 and pulls it upward, the tip end portion 9f of the baffle holding plate 9 is bent upward with a fixing portion by the screw 9n as a fulcrum. When the front end portion 9f bends upward, the front end portion 9f of the baffle holding plate 9 is separated from the front end portion 90a of the tongue 90, and the baffle can be sandwiched.
With the operator pulling the grip portion 9a upward, a webbing is placed between the tip 90a of the tongue 90 and the tip 9f of the webbing holding plate 9. In placing the bundling, about half of the bundling is placed on the tip portion 90a, and the remaining half is placed so as to protrude from the tip portion 90a.
And the force which an operator presses the holding | grip part 9a after placement of a wadding is released. Thereby, the bedding holding plate 9 is restored to its original position by the elastic force. At the time of restoration, the front end portion 9f sandwiches the webbing placed on the upper surface of the front end portion 90a of the tongue 90. Accordingly, the webbing can be held by the tip 90 a of the tongue 90 and the tip 9 f of the webbing holding plate 9 by the elastic force of the webbing holding plate 9.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the button-attached sewing machine in the seventh embodiment, since the tongue 90 is provided with the baffle holding plate 9, the sewing product is folded back by the tip 90a of the tongue 90 in the vicinity of the vertical movement path of the sewing needle 15. When holding in the state, the baffle holding plate 9 is positioned between the front end portion 90a and the front end portion 90a so that the bundling can be positioned inside the sewn product and folded together with the sewn product via the front end portion 90a. Hold.
As a result, the button held by the button holding mechanism 25, the workpiece held by the tongue 90, and the webbing held by the webbing holding plate 9 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  Further, by changing the operation status (pressed and released) of the operator, the bedding holding plate 9 is changed into a posture for holding the bedding and a posture for releasing the held bedding. As a result, the operator can attach and detach the bedding only by pulling up the grip 9a of the bedding holding plate 9, and does not require a separate member for operating the bedding holding plate 9. Can be reduced.

[Embodiment 8]
Next, a button sewing machine according to the eighth embodiment will be described. The difference between the button-attached sewing machine in the eighth embodiment and the button-attached sewing machine in the first embodiment is the configuration of the tongue and the baffle holding member. Therefore, these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 11, the tongue 100 is a member that is curved in the shape of an arm, and the base end portion of the tongue 100 is rotatable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
Further, the tip 100a of the tongue 100 holds the button to be sewn in a state where the cloth to be sewn is bent at the time of the rake sewing, and when the root winding sewing is performed after the rake sewing is formed, the cloth is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The distal end portion 100a is formed in a substantially flat plate shape and is formed in a substantially wedge shape whose thickness decreases toward the distal end. Moreover, the front-end | tip part 100a is set so that the flat plate surface may be in the state along XY plane in the holding position.

A semicircular cutout 100b is formed at the front end portion 100a of the tongue 100, and the cutout 100b of the tongue 100 is used when performing button sewing by rake sewing on the cloth mounted in a folded state. The structure is such that interference between the tip portion 100a and the sewing needle 15 is avoided.
The tongue 100 has a force cloth holding member that holds the force cloth between the front end portion 100a and the front end portion 100a of the tongue 100 so that the force cloth can be folded back through the front end portion 100a of the tongue 100 together with the sewing material. A baffle holding spring 10 is provided.

(Force cloth holding spring)
The baffle holding spring 10 is formed of a linear spring material as an elastic member that is elastically deformed by an operator's operation, specifically, an operator's pressing.
The baffle holding spring 10 is attached to the upper surface of the tongue 100 with a screw 10n at one end, and the other end projects from the tongue 100 in the surface direction. The other end portion is a gripping portion 10a for an operator to pull up the forceps holding spring 10 upward, and facilitates the pulling up operation of the forceps holding spring 10. That is, the baffle holding plate 10 has one end fixed to the screw 10n as a fixed end and the other end formed with the gripping portion 10a as a free end.
The force retaining spring 10 extends linearly from the position where the screw 10n is attached to the tongue 100 toward the tip 100a of the tongue 100, and is bent before overlapping the notch 100b, along the width direction of the tongue 100. Is formed.

<Holding operation of bundling by bundling holding spring>
Next, the holding operation of the bundling by the bundling holding spring will be described.
When the operator grips the gripping portion 10a of the forceps holding spring and pulls it upward, the forceps holding spring 10 bends upward with the fixing portion by the screw 10n as a fulcrum. When the bundling holding spring 10 bends upward, the bundling holding spring 10 is separated from the tip end portion 100a of the tongue 100, and the bundling can be sandwiched.
With the operator pulling the grip 10 a upward, the webbing C is placed between the tip 100 a of the tongue 100 and the webbing holding spring 10. In placing the webbing C, about half of the webbing C is placed on the tip 100a, and the other half is placed so as to protrude from the tip 100a.
And the force which an operator presses the holding | grip part 10a after mounting | wearing with the webbing C is released. Thereby, the bunt holding spring 10 is restored to its original position by the elastic force. At the time of restoration, the bedding holding spring 10 sandwiches the bedding placed on the upper surface of the front end portion 100 a of the tongue 100. As a result, the elastic fabric of the webbing holding spring 10 can hold the webbing with the tip 100 a of the tongue 100 and the webbing holding spring 10.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the buttoned sewing machine in the eighth embodiment, since the tongue 100 is provided with the bundling holding spring 10, the sewing product is folded back by the tip 100 a of the tongue 100 in the vicinity of the vertical movement path of the sewing needle 15. When holding in a state, the baffle holding spring 10 is positioned between the front end portion 100a and the front end portion 100a so that the bundling can be positioned inside the sewing subject and folded together with the sewing subject via the front end portion 100a. Hold.
As a result, the button held by the button holding mechanism 25, the workpiece to be sewn by the tongue 100, and the webbing held by the webbing holding spring 10 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

  In addition, by changing the operator's operation status (pressed, released), the bedding holding spring 10 changes into a posture for holding the bedding and a posture for releasing the held bedding. As a result, the operator can attach and detach the bedding only by pulling up the gripping portion 10a of the bedding holding spring 10 and does not require a separate member for operating the bedding holding spring 10. Can be reduced.

[Embodiment 9]
Next, a button sewing machine according to the ninth embodiment will be described. The difference between the button-attached sewing machine in the ninth embodiment and the button-attached sewing machine in the first embodiment is the configuration of the tongue and the baffle holding member. Therefore, these parts will be described, and other common points will be denoted by the same reference numerals. Therefore, the description is omitted.
(Tang)
As shown in FIG. 12, the tongue 110 is a member that is curved in an arm shape, and its base end portion is rotatable around the axis in the X-axis direction at the lower end portion on the distal end side of the bed portion 11. It is supported.
In addition, the tip 110a of the tongue 110 holds the button to be sewn in the state of bending the cloth to be sewn, and when the root winding is performed after the rake stitch is formed, the cloth is rake-sewn. It is held in a folded state at the knot portion of the formed root thread. The tip portion 110a is formed in a substantially flat plate shape, and is formed in a substantially wedge shape whose thickness decreases toward the tip. Moreover, the front-end | tip part 110a is set so that the flat plate surface may be in the state along XY plane in the holding position.

A semicircular cutout 110b is formed at the tip 110a of the tongue 110. When the button is sewn by rake sewing on the cloth mounted in a folded state, the cutout 110b is formed on the tongue 110. The structure is such that interference between the tip portion 110a and the sewing needle 15 is avoided.
Further, the tongue 110 includes a force cloth that holds the force cloth between the front end portion 110a and the front end portion 110a so that the power cloth can be folded back via the front end portion 110a of the tongue 110 together with the sewing object. A webbing holding projection 111 as a holding member is formed.
The webbing holding projection 111 is formed integrally with the tongue 110 and is formed at the tip 110 a so as to form a gap S that can hold the webbing between the upper surface of the tongue 110.
Note that the baffle holding protrusion 111 may be integrally formed with the tongue 110 or may be a separate member. Further, in order to change the gap S depending on the thickness of the bundling, the bundling holding projection 111 is formed separately from the tongue 110, and the mounting height from the surface of the tongue 110 can be changed by a ball screw or the like. It is good.

<Holding force holding operation by the holding force projection>
Next, the holding operation of the bundling by the bundling holding spring will be described.
In order to hold the webbing on the webbing holding projection, the webbing is inserted between the upper surface of the tip 110a of the tongue 110 and the lower surface of the webbing holding projection 111, and the surface of the tongue 110 and the webbing holding projection 111 is The bundling is held by the frictional force with the bundling.
Since the sewing method is the same as that of the first embodiment, the description thereof is omitted.

<Effect>
According to the button-attached sewing machine in the ninth embodiment, since the bundling holding projection 111 is integrally formed on the tongue 110, the sewing product is folded back by the tip 110a of the tongue 110 in the vicinity of the vertical movement path of the sewing needle 15. When holding the webbing in a state where the webbing is held between the front end part 110a and the webbing holding projection 111, the webbing is positioned between the front part 110a and the workbench so that the webbing can be folded together with the sewing product. Hold on.
As a result, the button held by the button holding mechanism 25, the sewing object held by the tongue 110, and the webbing held by the webbing holding projection 111 can be sewn by scooping with the button sewing machine. Therefore, even in a sewn product that needs to be sewn, such as a button-down shirt, the button and the webbing can be sewn with a single button sewing machine, and the sewing can be automated.

Further, when the operator holds the power cloth, it is only necessary to push the power cloth into the gap S formed between the power cloth holding projection 111 and the tongue 110.
Accordingly, it is not necessary to operate the bundling holding projection 111 in order to change between the posture for holding the bundling and the posture for releasing the held bundling. Therefore, the operation burden on the operator can be reduced.

  Further, by integrally forming the bundling holding projection 111 with the tongue 110, the bundling holding projection 111 and the tongue 110 can be produced at the same time, and the production process and production line can be reduced. Further, since the number of parts can be reduced, parts management can be facilitated.

The block diagram which shows the structure of a sewing machine with a button. The perspective view which shows the structure around a tongue. In Embodiment 1, (a) is a perspective view from above of the tongue and baffle holding plate, (b) is a perspective view from below of the tongue and baffle holding plate, and (c) is a state in which the bundling is held. The perspective view from the upper direction of a tongue and a baffle holding board of this, (d) is a side view of a tongue and a baffle holding board in the state holding the bundling. It is a side view which shows the state of the tongue at the time of buttoning in Embodiment 1, a bedding holding board, and a bedding. In Embodiment 2, (a) is a disassembled perspective view of a tongue and a bedding holding board, (b) is AA sectional drawing in (a), (c) is a B direction arrow view. The disassembled perspective view of the tongue and baffle holding plate in Embodiment 3. FIG. In Embodiment 4, (a) is an exploded perspective view of the tongue and baffle holding plate, (b) is a cross-sectional view taken along the line C-C when the bundling holding plate is attached to the tongue in (a), and (c) is ( CC sectional drawing when pressing down the baffle holding board in b). In Embodiment 5, (a) is a perspective view of a tongue and a baffle holding plate, (b) is a view in the direction of arrow D in (a), and (c) is a state when the baffle holding plate is pressed in (b). FIG. In Embodiment 6, (a) is an exploded perspective view of the tongue and baffle holding plate, (b) is an EE cross-sectional view when the bundling holding plate is attached to the tongue in (a), and (c) is ( EE sectional drawing when pressing down the buffing board in b). The perspective view of the tongue and baffle holding board in Embodiment 7. FIG. The perspective view of the tongue and baffle holding board in Embodiment 8. FIG. In Embodiment 9, (a) is a perspective view of a tongue and a webbing holding board, (b) is a side view of a tongue and a webbing holding board.

Explanation of symbols

1 Sewing machine with buttons 3 Force cloth holding plate (force cloth holding member)
3b Operation unit 15 Sewing needle 18 Button holding arm 25 Button holding mechanism 30 Tongue (cloth holding member)
30a tip portion 34 frame 41 rotation axis (rotation fulcrum)
B button W

Claims (6)

A button holding mechanism that holds the button below the sewing needle that moves up and down;
A cloth holding member that holds the sewing product in a folded state by a tip portion that extends rearward to the vicinity of the vertical movement path of the sewing needle below the button held by the button holding mechanism;
A cloth moving mechanism that moves relative to the cloth holding member in a direction crossing the vertical movement direction of the sewing needle;
A looper that captures the sewing thread from the lowered sewing needle to form a loop, and
In a button sewing machine that sews a button held by the button holding mechanism by moving the sewing needle up and down to a folded portion of a sewing product held by the cloth holding member,
The cloth holding member has a force cloth that holds the force cloth between the front end and the cloth so that the power cloth is positioned inside the sewing object and can be folded back together with the sewing object through the front end. A button-attached sewing machine comprising a holding member. The webbing holding member has an operation unit for an operator to operate,
2. The button attachment according to claim 1, wherein the webbing holding member changes into a posture for holding the webbing and a posture for releasing the webbing held according to an operation state of the operation unit. sewing machine. The force cloth holding member has a rotation fulcrum portion that is rotatably attached to the cloth holding member,
The webbing holding member changes between a posture for holding the webbing and a posture for releasing the webbing held by turning the pivotal fulcrum part as a fulcrum according to an operation state of the operation unit. The sewing machine with a button according to claim 2, wherein The webbing holding member is formed from an elastic member that is elastically deformed by an operator's operation,
3. The buttoned sewing machine according to claim 1, wherein one end of the force cloth holding member is fixed to the cloth holding member and the other end is a free end.   2. The button-attached sewing machine according to claim 1, wherein the baffle holding member is provided at a distal end portion of the cloth holding member so that a gap capable of holding the baffle is formed.   6. The buttoned sewing machine according to claim 5, wherein the force cloth holding member and the cloth holding member are integrally formed.

Images