JPH08243280A - Clamp type sewn cloth-holding frame - Google Patents

Abstract

PURPOSE: To hold sewn cloth in a stretched condition by holding the sewn cloth with a first and a second frame. CONSTITUTION: The device is equipped with a frame shaped base frame 21, a first holding frame 30 for holding a sewn cloth 15 onto the base frame 21, and with a second holding frame 35 for holding the sewn cloth 15 downward while the difference in level is given to the sewn cloth 15, the first holding frame 30 is pressed in the base frame 21 by first clamping means 40, and the second holding frame 35 is pressed down by second clamping means 53. In order to keep the sewn cloth in a stretched condition, after the sewn cloth has been positioned over the base frame 21, the first holding frame 30 is pressed onto the base frame 21, and the sewn cloth is thereby fixed onto the base frame 21. Next, when the second holding frame 35 is pressed by the second clamping means 53, the sewn cloth is held down while the difference in level is given to the sewn cloth at the inner circumferential side of the first holding frame 30 by the second holding frame 35, and the sewn cloth can thereby be kept in a stretched condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp type sewn cloth holding frame, and more particularly, to a sewn cloth held in a tensioned state by pressing the sewn cloth by a first press frame and a second press frame. Regarding

[0002]

2. Description of the Related Art Conventionally, a sewn cloth holding frame for holding the sewn cloth in a stretched state has been put to practical use in order to perform embroidery or pattern sewing on the sewn cloth. Such a cloth holding frame for sewn includes a clip method of fixing the cloth to be sewn to the base frame with a clip, a fitting method of fitting an outer fitting frame and an inner fitting frame through the cloth to be sewn, and a sewn cloth. A clamp system, in which a cloth is sandwiched between a base frame and a press frame to be pressed and fixed, has been put into practical use.

In the clip type cloth holding frame for sewing, a protruding portion is generally provided on an outer edge portion of a frame-shaped base frame, and a plurality of clips are fitted to the protruding portion from above the cloth to be sewn. In the fitting-type sewn cloth holding frame configured to hold the sewn cloth, the sewn piece is sewn on the outer fitting frame having a predetermined thickness in a direction orthogonal to the set sewn cloth. After the cloth is positioned, the cloth to be sewn is tensioned by fitting an inner fitting frame having substantially the same thickness, and the cloth to be sewn is held in a tensioned state.

On the other hand, in the clamp type sewn cloth holding frame, generally, a frame-shaped base frame, a holding frame for pressing the sewn cloth on the base frame, and the holding frame is pressed against the base frame.
A pair of clamp means or the like is provided, and when the cloth to be sewn is held, after the cloth to be sewn is positioned on the base frame, the clamp frame is pressed against the base frame by these clamp means,
It is configured to hold the cloth to be sewn.

[0005]

However, in the above-mentioned clamp type sewn cloth holding frame, the positioned sewn cloth is merely pressed to the base frame by the holding frame, and tension is applied to the sewn cloth. Therefore, the cloth to be sewn cannot be held in a sufficiently stretched state. Therefore, after the cloth to be sewn is once sandwiched between the press frame and the base frame, the cloth to be sewn is gradually tensioned and held by repeatedly releasing and fixing the respective clamping means, but the work load increases. At the same time, work efficiency is significantly reduced. An object of the present invention is to provide a clamp-type sewn cloth holding frame which is simple, reliable and efficient, and which can hold a sewn cloth in a sufficiently stretched state.

[0006]

A clamp type sewn cloth holding frame according to claim 1 is a clamp type sewn cloth holding frame for holding a sewn cloth used for embroidery or pattern sewing in a stretched state. A frame-shaped base frame, a first pressing frame for pressing the cloth to be sewn onto the base frame, a first clamp means for pressing the first pressing frame against the base frame, and a first pressing frame of the first pressing frame. The sewing machine is provided with a second pressing frame for pressing the sewing cloth downward by forming a step on the cloth to be sewn on the inner peripheral side, and a second clamp means for pressing the second pressing frame downward. .

A clamp-type sewn cloth holding frame according to claim 2 is
In the invention of claim 1, the base frame has a first receiving portion facing the first pressing frame, and a step-up portion formed on the inner peripheral side of the first receiving portion in a step-up shape from the first receiving portion. And a second receiving portion which is formed in a stepped-down shape from the step-up portion and faces the second pressing frame on the inner peripheral side of the step-up portion.

A clamp type sewn cloth holding frame according to claim 3 is
In the invention of claim 1, the base frame is formed with a first receiving portion facing the first pressing frame, and a stepped shape from the first receiving portion on the inner peripheral side of the first receiving portion, and the second pressing portion. And a second receiving portion facing the frame. In the clamp type sewing cloth holding frame according to a fourth aspect of the present invention, in the first aspect of the invention, the second pressing frame is provided on the inner peripheral side of the base frame.

According to a fifth aspect of the present invention, in the clamp type cloth holding frame for sewing,
In a clamp type sewing cloth holding frame for holding a cloth to be sewn used for embroidery or pattern sewing in a stretched state, a frame-shaped base frame and a first presser for pressing the cloth to be sewn on the base frame. A frame, a second pressing frame for pressing the cloth to be sewn downward by forming a step on the cloth to be sewn on the inner peripheral side of the first pressing frame, and a clamp means for pressing the second pressing frame downward. And an elasticity for elastically urging the first pressing frame downward with respect to the second pressing frame so that the first pressing frame presses the sewing cloth prior to the second pressing frame pressing the sewing cloth. And a member.

[0010]

In the clamp type sewing cloth holding frame according to claim 1, a frame-shaped base frame, a first pressing frame for pressing the sewing cloth on the base frame, and an inner peripheral side of the first pressing frame. In the above, a second presser frame for forming a step on the cloth to be sewn and pressing the cloth to be sewn downward is provided, the first clamp frame presses the first presser frame against the base frame, and the second clamp device second presser frame. It is configured to press the frame downward. In order to hold the cloth to be sewn in a stretched state, first, after positioning the cloth to be sewn on the base frame, the first clamping means presses the first holding frame against the base frame to make the cloth to be the base. Fix it to the frame. Next, when the second clamp frame is pressed by the second clamp means, the second press frame causes the step of the cloth to be sewn on the inner peripheral side of the first press frame to press the cloth to be sewn downward, and the cloth to be sewn is pressed down. Can be held in tension.

That is, according to this clamp type cloth holding frame for sewing, the cloth to be sewn is once pressed and fixed to the base frame by the first pressing frame, and then the step is added to the cloth to be sewn by the second pressing frame. Since the cloth to be sewn is pressed downward, tension is reliably applied to the cloth to be sewn, and the cloth to be sewn can be held in a sufficiently stretched state. Moreover, since the cloth to be sewn is fixed by the first presser frame and then the second presser frame applies tension to the cloth to be sewn, the cloth to be sewn is fixed to the base frame by the first presser frame. At this time, it is not necessary to fix the sewn cloth in such a stretched state. Therefore, the cloth to be sewn can be easily positioned on the base frame, and further, after the cloth to be sewn is fixed, the cloth to be sewn can be held in a stretched state only by operating the second clamp means. The work load can be remarkably reduced and the work efficiency can be improved. Further, since the cloth to be sewn fixed by the first presser frame is pressed downward by the entire second presser frame, the cloth to be sewn can be given a substantially uniform tension. As a result, it is possible to prevent slack from occurring in the cloth to be sewn during embroidery or pattern sewing.

In the clamp-type sewn cloth holding frame of the present invention, the base frame has a first receiving portion facing the first pressing frame, and an inner peripheral side of the first receiving portion from the first receiving portion. A step-up portion formed in a step-up shape and a second receiving portion that is formed in a step-down shape from the step-up portion and faces the second pressing frame on the inner peripheral side of the step-up portion. In order to hold the cloth to be sewn in a stretched state, the cloth to be sewn is stretched to some extent by positioning the cloth to be sewn on the base frame and then pressing the first holding frame to the first receiving portion by the first clamp means. It is fixed to the base frame in the state. Next, when the second clamp frame is pressed against the second receiving portion by the second clamp means, the cloth to be sewn is stepped and the cloth to be sewn is pressed downward, and the cloth to be sewn can be held in a tensioned state. it can.

That is, according to this clamp-type sewn cloth holding frame, the same operation as that of the first aspect is achieved, but the first pressing frame is provided by the step-up portion provided on the inner peripheral side of the first receiving portion. When pressed, the positioned cloth to be sewn can be fixed to the base frame while being stretched to some extent. Therefore, by making a step on the cloth to be sewn by the second pressing frame and pressing the cloth to be sewn downward, the cloth to be sewn can be held more reliably in a sufficiently stretched state. Moreover, since the cloth to be sewn can be bent and securely fixed to the first and second receiving portions that sandwich the raised portion by the first and second presser frames, even when embroidery or pattern sewing is performed, It is possible to reliably prevent the sewn cloth from being loosened.

According to the clamp type sewing cloth holding frame of the third aspect, the same operation as that of the first aspect is achieved, but the base frame has the first receiving portion facing the first pressing frame, and the first receiving portion. Since a second receiving portion that is formed in a stepped shape from the first receiving portion and faces the second pressing frame is provided on the inner peripheral side of the portion,
The base frame can be configured with a simple structure, and the manufacturing cost can be reduced.

According to the clamp type sewing cloth holding frame of the fourth aspect, the same operation as that of the first aspect is achieved, but since the second pressing frame is provided on the inner peripheral side of the base frame,
The base frame can be constructed with a simpler structure, and the manufacturing cost can be greatly reduced.

In the clamp-type sewn cloth holding frame according to claim 5, a frame-shaped base frame, a first presser frame for pressing the sewn cloth on the base frame, and an inner peripheral side of the first presser frame. In the above, a second press frame for pressing the cloth to be sewn downward by providing a step to the cloth to be sewn is provided, the second presser frame is pressed downward by the clamp means, and the first presser frame is the second by the elastic member. The pressing frame is elastically urged downward, and the first pressing frame presses the cloth to be sewn prior to the second pressing frame pressing the cloth to be sewn.

To hold the cloth to be sewn in tension,
After positioning the cloth to be sewn on the base frame, when the second pressing frame is driven downward by the clamp means, first, the cloth to be sewn is first urged by the first pressing frame elastically urged downward with respect to the second pressing frame. Is pressed onto the base frame. Further, when the second presser frame is driven downward, the second presser frame makes a step on the cloth to be sewn on the inner peripheral side of the first presser frame, and the cloth to be sewn is pressed downward to stretch the cloth to be sewn. Held in a state.

That is, according to this clamp-type sewn cloth holding frame, as in the clamp-type sewn cloth holding frame, the sewn cloth is simply, reliably and efficiently stretched. Since the first pressing frame is biased downward with respect to the second pressing frame by the elastic member, the cloth to be sewn can be reliably pressed by the first pressing frame. (1) Since it is not necessary to provide the clamp means for pressing the holding frame, the manufacturing cost can be reduced. Moreover, simply by operating the clamp means for pressing the second pressing frame downward,
Since the cloth to be sewn can be held in a stretched state, the work load can be reduced and the work efficiency can be greatly improved.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is a case where the present invention is applied to a multi-head embroidery machine having three embroidery sewing machine bodies. First, a description will be given of the multi-head embroidery machine M, as shown in FIG. 1, on the rear side of the upper surface of the base frame 1 extending in the left-right direction, a sewing machine support plate 2 having a rectangular shape in plan view and having a predetermined length in the left-right direction. On the sewing machine support plate 2, three embroidery sewing machines MH (corresponding to the main body of the sewing machine) are arranged in a row in the left-right direction at predetermined intervals. A needle bar case 4 having twelve needle bars (not shown) is attached to the front end of each arm section 3 of the embroidery sewing machine MH, and an embroidery pattern is formed with an embroidery thread of a desired color by the needle bar. The needle bar for forming is alternatively selected.

On the other hand, the bed 6 at the lower end of the column 5 connected to the arm 3 is mounted on the sewing machine support plate 2, and the cylinder bed 7 extends forward from the front end of the bed 6 A thread supplement device (not shown) is provided at the tip of the bed 7, and a stitch is formed on the cloth 15 to be sewn with an embroidery thread of a desired color in cooperation with the sewing needle attached to the selected needle thread. It is supposed to be done. In addition, the needle bar and the balance 8
An upper shaft (not shown) for moving the sewing machine up and down and a lower shaft (not shown) for rotating the thread supplement device are driven by a drive shaft that is rotationally driven by a V belt 9 connected to a sewing machine motor (not shown). .

On the front side of the sewing machine support plate 2, a sewing table 10 is arranged at substantially the same height as the upper surface of the cylinder bed 7, and auxiliary tables 11 and 12 are provided at both left and right ends of the sewing table 10. Has been. Sewing table 10
On the auxiliary tables 11 and 12, there is a movable frame 13 that extends in the left-right direction and has a rectangular shape in a plan view. The movable frame 13 includes a movable frame main body 13a and drive frame portions 13b and 13c fixed to the left and right ends thereof. Is mounted, the drive frame portion 13b at the right end of the movable frame 13 is driven to move in the X-axis direction (horizontal direction) by an X-axis drive mechanism (not shown), and the drive frame 13c at the left end thereof is moved in the Y-axis. It is configured to be moved and driven in the Y-axis direction (front-back direction) by a drive mechanism (not shown).
Then, the movable frame 13 which is driven to move in the X-axis and Y-axis directions.
The clamp type sewn cloth holding frame 20 corresponding to each of the three embroidery sewing machines MH is fixedly attached to the movable frame body 13a.

The clamp type sewing cloth holding frame 20 will be described. As shown in FIGS. 2 to 4, the clamp-type sewn cloth holding frame 20 (hereinafter referred to as a holding frame) includes a frame-shaped base frame 21 and a first sewn cloth 15 for pressing the sewn cloth 15 on the base frame 21.
The presser frame 30, a pair of left and right first clamp mechanisms 40 for pressing the first presser frame 30 against the base frame 21, and the stepped portion of the cloth 15 to be sewn on the inner peripheral side of the first presser frame 30. A second press frame 35 for pressing the sewing cloth 15 downward, a pair of left and right second clamp mechanisms 53 for pressing the second press frame 35 downward, a first clamp mechanism 40 and a second clamp mechanism 53. And an operator operating mechanism 55 for selectively operating each of them in the clamp position and the clamp release position.

First, the base frame 21 will be described. As shown in FIG. 2 and FIG. 5, a substantially rectangular opening 22 is formed in the front portion of the base frame 21, and the first outer peripheral portion of the opening 22 faces the first holding frame 30. Receiver 23
And a step-up portion 24 formed on the inner peripheral side of the first receiving portion 23 in a step-up shape from the first receiving portion 23, and a step-down portion from the step-up portion 24 on the inner peripheral side of the step-up portion 24. And a second receiving portion 25 that is formed on the second pressing frame 35 and faces the second pressing frame 35.

At the rear of the base frame 21, a first pressing frame 30 is provided.
Left and right for pressing the first receiving portion 23 of the base frame 21
A pair of first clamp mechanisms 40 are provided, and a second holding frame 35 is provided inside the first clamp mechanism 40.
A pair of left and right second clamp mechanisms 53 for pressing the first second receiving portion 25 are provided, and the rear end portion of the base frame 21 is
An operation transmission portion 56 corresponding to each of the first clamp mechanism 40 and the second clamp mechanism 53 is provided.

The front end portion of the base frame 21 is connected to the movable frame main body 13a through a connecting metal fitting 26 fixed to the central portion thereof, and the connecting metal fitting 26 is connected to the movable frame main body by a screw member 27 with a knob. It is fixed to the upper surface of 13a.
The base frame 21 has a rear end portion provided with a connecting portion 28 that is bent in a step-up shape, and the connecting portion 28 is fixed to the upper surface of the movable frame main body portion 13a with a pair of bolts 29.

Next, the first pressing frame 30 and the second pressing frame 35 will be described. As shown in FIGS. 2 to 5, the first holding frame 30 is arranged to face the first receiving portion 23 of the base frame 21, and a pair of left and right connecting portions 31 is provided in the center portion in the front-rear direction. Each connecting portion 31 is connected to the front end portion of the support member 33 via the pin member 32, and the first holding frame 30 is rotatable about the axis of the pin member 32 by the pair of left and right support members 33. Supported by. Each support member 33 is fixed to a clamp lever 46 of the first clamp mechanism 40 by a bolt 47, and the first holding frame 30 is fixed to the first receiving portion 23 of the base frame 21 by the pair of left and right first clamp mechanisms 40.
Is pressed by.

The second pressing frame 35, which has a frame shape smaller than the first pressing frame 30, has a second receiving portion 25 of the base frame 21.
And a pair of left and right connecting portions 36 of the second pressing frame 35 are connected to the front end portion of the supporting member 38 via a pin member 37, similarly to the first pressing frame 30. The two presser frame 35 is provided with the pair of support members 38 so that the pin member 37 is
It is rotatably supported around the axis of. Each support member 3
8 is fixed to a clamp lever 46 of the second clamp mechanism 53 with a bolt 47, and the second holding frame 35 is pressed against the second receiving portion 25 of the base frame 21 by the pair of second clamp mechanisms 53.

Next, the first clamp mechanism 40 and the second clamp mechanism 40
The clamp mechanism 53 will be described. However, the first and second
Since the four clamp mechanisms of the clamp mechanisms 40 and 53 are all configured with the same structure, the same reference numerals are given to the same ones, and the first one provided on the right end portion of the base frame 21.
Only the clamp mechanism 40 will be described with reference to FIGS. 3 and 4. The first clamp mechanism 40 is attached to the base frame 21 with four
A base member 41 fixed by individual bolts 42, an input lever 43 having an input portion 44 at a rear end, a connecting member 45 connecting the base member 41 and the input lever 43, a base member 41 and an input lever 43. The input part 44 of the input lever 43 is connected to one end of the wire 62 of the operator operating mechanism 55.

At the rear of the upper end of the base member 41, there is a first
One end of the connecting member 45 is connected via the pin member 48, and the other end of the connecting member 45 is connected to a position of about 1/5 from the front end of the input lever 43 via the second pin member 49. The front end of the input lever 43 is connected to the upper rear end of the clamp lever 46 via the third pin member 50, and the lower rear end of the clamp lever 46 is connected to the upper front end of the base member 41 via the fourth pin member 51. Are linked to. Here, the clamp lever 46 is pivotally supported by the fourth pin member 51 on the base member 41 fixed to the base frame 21, and the first holding frame 30 includes the clamp lever 46 and the support member 33 of the first clamp mechanism 40. It is connected to the base frame 21 so as to be vertically swingable.

That is, when the input portion 44 of the input lever 43 is driven upward from the clamp position of the first clamp mechanism 40 of FIG. 3, the second pin member 49 moves around the first pin member 48 and the third pin member 48. Since 50 rotates around the fourth pin member 51, the clamp lever 46 connected to the third pin member 50 and the fourth pin member 51 moves around the fourth pin member 51 as the input portion 44 is driven upward. When rotated, the tip end portion of the clamp lever 46 rises by a predetermined height, and the first clamp mechanism 40 reaches the clamp release position shown in FIG. When the input section 44 is driven downward from the unclamped position, the clamp lever 46 rotates in the opposite direction to the above, and the center of the second pin member 49 and the center of the first pin member 48 and the third pin member 48. The clamp stable position is located closer to the base member 41 than the straight line connecting the centers of the pin members 50, and the first clamp mechanism 40 is in the clamp position.

Next, the operator operating mechanism 55 for selectively operating the first clamping mechanism 40 and the second clamping mechanism 53 to the clamp position and the unclamping position will be described. As shown in FIGS. 2 to 4, the operator operating mechanism 55
Are four operation transmission parts 56 provided on the rear side of the first and second clamp mechanisms 40 and 53 on the base frame 21.
And four wires 62 with outer tubes 61, one ends of which are connected to the input portions 44 of the first and second clamp mechanisms 40 and 53, and work connected to the other ends of the wires 62 with outer tubes 61. The user operation unit 65.

The operation transmitting portion 56 will be described. As shown in FIGS. 3 and 4, in each operation transmitting portion 56, a connecting member 57 having a predetermined height and having a U-shape in a side wall is used as a base at its lower end surface. The connecting member 57 is fixedly provided on the frame 21.
The end of the outer tube 61 is fixed to the upper end of the with a bolt 58. The wire 62 extending downward from the end of the outer tube 61 extends through an insertion hole (not shown) formed in the input section 44, and a cylindrical locking member 59 is fixed to the tip of the wire 62. , Is connected to the input unit 44. Between the upper end of the connecting member 57 and the input section 44,
A spring 60 is provided, and the input section 44 is biased downward.

Explaining the operator operating section 65, as shown in FIG. 6, the operator operating section 65 is a plate-shaped 1 which is swingably connected to a base frame 66 and a lower end front end of the base frame 66. A pair of first and second foot pedals 67,
68, each foot pedal 67, 68, and base frame 6
It is composed of a spring 69 and the like arranged between the lower end portion of 6 and. To the upper end of the base frame 66, the ends of the four outer tubes 61 extending from each operation transmission part 56 are fixed by bolts 70, respectively, but the two wires 62 with the outer tubes 61 on the right side are the first The clamp mechanism 40 is driven, and the two left-hand sides drive the second clamp mechanism 53.

The wires 62 extending downward from the ends of the two outer tubes 61 on the right side are connected to the first foot pedal 67 by
The wires 62 extending downward from the ends of the two left outer tubes 61 are connected to the second foot pedal 68,
The wire 62 extends through the insertion holes (not shown) formed at the rear end portions of the foot pedals 67 and 68, respectively.
A locking member 71 (see FIGS. 3 and 4) is fixedly connected to the tip of the second member 2. Although not shown, the operator operating section 65 is fixedly mounted at a position where the operator can easily operate it with his / her feet (for example, the lower front end of the base frame 1 of the multi-head embroidery machine M).

Next, the operation of the holding frame 20 will be described. The first and second foot pedals 67 of the operator operating section 65,
When 68 is pushed downward with the foot, the first and second foot pedals 6
The four wires 62 connected to the wires 7, 68 are pulled downward, and at the same time, the wire 62 is pulled upward in each operation transmission portion 56 and connected to one end of the wire 62. Is driven upwards. Then, as shown in FIG. 4, both the first and second clamp mechanisms 40 and 53 are in the unclamped positions, and as shown in FIG. 7, the first holding frame 30 and the second holding frame 35 move to the base frame 21. Is raised to a predetermined height.

Then, the first and second foot pedals 67, 6
8. While stepping on both of 8 and positioning on the base frame 21 with the cloth 15 to be sewn stretched by both hands, first put the foot on the first
Release from foot pedal 67. Then, in the operation transmitting portion 56 corresponding to the first clamp mechanism 40, the connecting member 57
The input portion 44 is driven downward by the spring 60 installed inside the first clamp mechanism 40 to the clamp position, and as shown in FIG. 8, the first holding frame 30 is moved to the first receiving portion 23 of the base frame 21. When the cloth 15 to be sewn is stretched to some extent, the cloth 15 is pressed and fixed to the base frame 21.

Subsequently, when the foot is released from the second foot pedal 68, the operation transmitting portion 56 corresponding to the second clamp mechanism 53.
In the same manner as above, the input portion 44 is driven downward by the spring 60 that is installed in the connecting member 57,
The clamp mechanism 53 is at the clamp position, and as shown in FIG. 9, the second holding frame 35 causes the second receiving portion 25 of the base frame 21.
The cloth 15 to be sewn is pressed by, and tension is applied to the cloth 15 to be sewn, and the cloth 15 to be sewn is held in a tensioned state (see FIG. 5).

According to the holding frame 20, once the cloth 15 to be sewn is pressed and fixed to the first receiving portion 23 of the base frame 21 by the first pressing frame 30, the cloth 15 to be sewn is fixed by the second pressing frame 35. Since the cloth 15 is stepped by pressing the cloth 15 with a step, the cloth 15 is reliably tensioned, and the cloth 15 can be held in a sufficiently stretched state. Moreover, after the cloth 15 to be sewn is fixed by the first pressing frame 30,
Since the second presser frame 35 is configured to give tension to the cloth 15 to be sewn, when the cloth 15 to be sewn is fixed to the first receiving portion 23 of the base frame 21 by the first presser frame 30,
It is not necessary to fix the cloth 15 to be sewn so much. Therefore, the cloth 15 to be sewn can be easily positioned on the base frame 21, and after the cloth 15 to be sewn is fixed, the second clamp mechanism 53 can be operated only via the work operation mechanism 55. Since the sewing cloth 15 can be held in a stretched state, the work load can be significantly reduced and the work efficiency can be improved.

Further, since the cloth 15 to be sewn fixed by the first presser frame 30 is pressed downward by the entire second presser frame 35, the cloth 15 to be sewn can be provided with a substantially uniform tension.
Since the cloth 15 to be sewn can be bent and reliably fixed to the first and second receiving portions 23 and 25 that sandwich the raised portion 24 of the base frame 21 by the first and second presser frames 30 and 35, embroidery or pattern Even when the sewing is performed, it is possible to reliably prevent the sewn cloth from being loosened. Further, when the first pressing frame 30 is pressed by the raised portion 24 of the base frame 21, the positioned cloth to be sewn 15 can be fixed to the base frame 21 while being stretched to some extent. Therefore, by making a step on the cloth 15 to be sewn and pressing the cloth 15 to be sewn downward by the second presser frame 35 from that state, the cloth 15 to be sewn can be held more securely in a sufficiently stretched state. it can.

Further, the operator operating mechanism 55 is operated by the operator operating the operator operating portion 65 with a foot, and the first and second clamp mechanisms 4 are operated.
Since each of 0 and 53 can be selectively operated between the clamp position and the clamp release position, holding the cloth 15 to be sewn with both hands while operating the first and second clamp mechanisms 40 and 53. You can As a result, since the cloth 15 to be sewn can be positioned in a sufficiently stretched state even when the first presser frame 30 is pressed, the cloth 15 to be sewn 15 is pressed when the cloth 15 to be sewn is pressed by the 23rd presser frame 35. Can be securely held in a tensioned state. Moreover, since the operation transmitting portion 56 of the operator operating mechanism 55 is provided with the spring 60 for urging the input portion 44 downward so that the respective clamp mechanisms 40, 55 are in the clamp positions, the sewing workpiece once held is sewn. Since the cloth 15 can be continuously held, the work load can be significantly reduced.

Next, modified examples 1 to 4 in which the above embodiment is partially modified will be described with reference to the drawings. However, the same components as those of the above-described embodiment will be described by assigning the same reference numerals. Modification 1 ... See FIG. 10. Instead of the base frame 21 of the above-described embodiment, the base frame 73 has a first receiving portion 74 facing the first pressing frame 30 at the outer peripheral portion of the opening 76, and a first receiving portion 74. Since the second receiving portion 75, which is formed in a stepped shape from the first receiving portion 74 and is opposed to the second holding frame 35, is provided on the inner peripheral side of the receiving portion 74, the same operation and effect as those of the above-described embodiment are provided. Moreover, the base frame 73 can be obtained with a simple structure, and the manufacturing cost can be reduced.

Modification 2 ... See FIG. 11 In the base frame 77 of modification 2, a receiving portion 78 for pressing and fixing the first pressing frame 30 is provided on the outer peripheral portion of the opening 79, and the second pressing member is provided. The frame 35 is provided on the inner peripheral side of the base frame 77. That is, after the cloth 15 to be sewn is fixed to the receiving portion 78 of the base frame 77 by the first pressing frame 30, the cloth 15 to be sewn is stepped by the second pressing frame 35 to press the cloth 15 to be sewn downward. Is configured to. That is, the base frame 77 can be configured with a simpler structure, and
It is possible to obtain substantially the same actions and effects as those of the above-mentioned embodiment.

Modification 3 ... See FIG. 12, in place of the operator operation unit 65 of the above-described embodiment, an operator operation unit 80 of Modification 3 swings on the base frame 81 and the lower front end of the base frame 81. It is composed of a plate-shaped foot pedal 82 that is freely connected and a spring 83 and the like disposed between the foot pedal 82 and the lower end of the base frame 81. The ends of the four outer tubes 61 extending from the portion 56 are respectively fixed by bolts 84, but the two wires 62 with outer tubes 61 at the left and right ends are the operation transmitting portions 56 corresponding to the second clamp mechanism 53. The two outer wires 61 with outer tubes 61 are connected to the operation transmitting portion 56 corresponding to the first clamp mechanism 40.

13 to 15 are sectional views of the operator operating portion 80 as seen from the rear side of the foot pedal 82.
In the state of the foot pedal 82, the first and second clamp mechanisms 40 and 53 are in the clamp position, and the operator operation unit 80
In the above, the wire 62 extending downward from the ends of the two outer tubes 61 at both ends extends through an insertion hole (not shown) formed at the rear end of the foot pedal 82, and the wire 6
The locking member 83 at the front end of the second wire 2 is in contact with the foot pedal 82, and the wire 62 extending downward from the ends of the two middle outer tubes 61 has an insertion hole formed at the rear end of the foot pedal 82. An engaging member 83 at the tip of the wire 62 is positioned below the insertion hole by extending through (not shown).

From the state shown in FIG. 13, when the upper part of the foot pedal 82 is moved downward with the foot, the wires 62 at both ends are pulled downward, the second clamp mechanism 53 is driven to the clamp release position, The second presser frame 35 moves up.
When the upper part of the foot pedal 82 is further moved downward,
From the state of FIG. 14, the two inner wires 62 are also pulled downward to drive the first clamp mechanism 40 to the clamp release position, and in the state of FIG. 15, the first holding frame 30 is also raised and The sewing cloth 15 can be positioned on the frame 21.

After the cloth 15 to be sewn is positioned, when the upper part of the foot pedal 82 is gradually raised, the first pressing frame 30 is first pressed against the first receiving portion 23, contrary to the above.
Next, the second pressing frame 35 is pressed by the second receiving portion 35,
The sewing cloth 15 is held in a stretched state. In other words, by providing this worker operating unit 80, the worker operating unit 8
0 can be made small. Moreover, by operating one foot pedal 82, the first holding frame 30 and the second holding frame 35 can be operated via the first clamp mechanism 40 and the second clamp mechanism 53, so that the operator can perform a work operation. It can be simplified and the work load can be significantly reduced. It should be noted that the worker operation unit 80 can be applied to the first modification and the second modification.

Modification 4 ... See FIGS. 16 and 17: A receiving portion 87 is provided on the outer peripheral portion of the opening 86 of the frame-like base frame 85.
The first holding frame 88 for holding the cloth 15 to be sewn on the receiving portion 87 is provided with a spring 90 (which corresponds to an elastic member) with respect to the holding frame 89 having an L-shaped cross section.
The second pressing frame 89 is elastically urged downward, and the second pressing frame 89
On the inner peripheral side of 8, the cloth 15 to be sewn is provided with a step so that the cloth 15 to be sewn can be pressed downward.

In order to hold the cloth 15 to be sewn in a stretched state, first, the cloth 15 to be sewn is positioned on the base frame 85, and then the second holding frame 89 is fixed by a pair of clamp mechanisms (not shown). When it is driven downward, as shown in FIG.
The first pressing frame 8 elastically biased downward with respect to the pressing frame 89.
8, the cloth 15 to be sewn is pressed against the receiving portion 87 of the base frame 85. Further, when the second presser frame 89 is driven downward, the first presser frame 89 causes the first presser frame 89 to move to the first position as shown in FIG.
A step is formed on the cloth 15 to be sewn on the inner peripheral side of the pressing frame 88, and the cloth 15 to be sewn is pressed downward, and the cloth 15 to be sewn is held in a tensioned state. Although not shown, the operator operating mechanism for selectively operating the clamp mechanism between the clamp position and the unclamping position is the operator operating unit 80 of the modification 3 in the input unit of the clamp mechanism. It is applied that only the wires 62 with the two outer tubes 61, one end of which is connected to the, are connected.

That is, the above-mentioned embodiment, modification 1 and modification 2
Similarly to the above, the sewing cloth 15 can be held in a simple, reliable and efficient tension state, and the spring 90
Since the first presser frame 88 is urged downward with respect to the second presser frame 89, the cloth 15 to be sewn can be reliably pressed by the first presser frame 88, and the first presser frame 88 is pressed. Since it is not necessary to provide a clamping mechanism for the manufacturing, the manufacturing cost can be reduced. Moreover, since the cloth 15 to be sewn can be held in a stretched state only by operating the clamp means for pressing the second presser frame 89 downward, the work load can be reduced and the work efficiency can be greatly improved.

Incidentally, the above-mentioned embodiment and modification 1, modification 2,
In the modified example 4, the operator operation mechanism 55 does not necessarily have to be provided, and it is of course possible to manually operate the clamp mechanism to hold the sewn cloth 15 in a tensioned state.

[0051]

According to the clamp type sewn cloth holding frame of the present invention, a frame-shaped base frame, a first presser frame for pressing the sewn cloth on the base frame, and an inner portion of the first presser frame. A second presser frame for pressing the sewn fabric downward by forming a step on the sewn fabric on the circumferential side is provided, and the first clamp frame presses the first presser frame against the base frame, and the second clamp means The two pressing frame is configured to be pressed downward. In order to hold the cloth to be sewn in a stretched state, first, after positioning the cloth to be sewn on the base frame, the first clamping means presses the first holding frame against the base frame to make the cloth to be the base. Fix it to the frame. Then, the second clamping means
When the presser frame is pressed, the second presser frame makes a step on the cloth to be sewn on the inner peripheral side of the first presser frame to press the cloth to be sewn downward, and the cloth to be sewn can be held in a tensioned state. .

That is, according to the clamp type cloth holding frame for sewing, the cloth to be sewn is first pressed and fixed to the base frame by the first pressing frame, and then the step is added to the cloth to be sewn by the second pressing frame. Since the cloth to be sewn is pressed downward, tension is reliably applied to the cloth to be sewn, and the cloth to be sewn can be held in a sufficiently stretched state. Moreover, since the cloth to be sewn is fixed by the first presser frame and then the second presser frame applies tension to the cloth to be sewn, the cloth to be sewn is fixed to the base frame by the first presser frame. At this time, it is not necessary to fix the sewn cloth in such a stretched state. Therefore, the cloth to be sewn can be easily positioned on the base frame, and further, after the cloth to be sewn is fixed, the cloth to be sewn can be held in a stretched state only by operating the second clamp means. The work load can be remarkably reduced and the work efficiency can be improved. Further, since the cloth to be sewn fixed by the first presser frame is pressed downward by the entire second presser frame, the cloth to be sewn can be given a substantially uniform tension. As a result, it is possible to prevent slack from occurring in the cloth to be sewn during embroidery or pattern sewing.

In the clamp-type sewn cloth holding frame of the present invention, the base frame has a first receiving portion facing the first pressing frame, and an inner peripheral side of the first receiving portion from the first receiving portion. A step-up portion formed in a step-up shape and a second receiving portion that is formed in a step-down shape from the step-up portion and faces the second pressing frame on the inner peripheral side of the step-up portion. In order to hold the cloth to be sewn in a stretched state, the cloth to be sewn is stretched to some extent by positioning the cloth to be sewn on the base frame and then pressing the first holding frame to the first receiving portion by the first clamp means. It is fixed to the base frame in the state. Next, when the second clamp frame is pressed against the second receiving portion by the second clamp means, the cloth to be sewn is stepped and the cloth to be sewn is pressed downward, and the cloth to be sewn can be held in a tensioned state. it can.

That is, according to this clamp type cloth holding frame for sewing, the same effect as that of the first aspect can be obtained, but the first pressing frame is provided by the step-up portion provided on the inner peripheral side of the first receiving portion. When pressed, the positioned cloth to be sewn can be fixed to the base frame while being stretched to some extent. Therefore, by making a step on the cloth to be sewn by the second pressing frame and pressing the cloth to be sewn downward, the cloth to be sewn can be held more reliably in a sufficiently stretched state. Moreover, since the cloth to be sewn can be bent and securely fixed to the first and second receiving portions that sandwich the raised portion by the first and second presser frames, even when embroidery or pattern sewing is performed, It is possible to reliably prevent the sewn cloth from being loosened.

According to the clamp type sewing cloth holding frame of the third aspect, the same effect as that of the first aspect can be obtained, but the base frame has the first receiving portion facing the first pressing frame, and the first receiving portion. Since a second receiving portion that is formed in a stepped shape from the first receiving portion and faces the second pressing frame is provided on the inner peripheral side of the portion,
The base frame can be configured with a simple structure, and the manufacturing cost can be reduced.

The clamp-type sewn cloth holding frame according to claim 4 has the same effect as that of claim 1, but since the second pressing frame is provided on the inner peripheral side of the base frame,
The base frame can be constructed with a simpler structure, and the manufacturing cost can be greatly reduced.

In the clamp-type sewn cloth holding frame according to claim 5, a frame-shaped base frame, a first presser frame for pressing the sewn cloth on the base frame, and an inner peripheral side of the first presser frame. In the above, a second press frame for pressing the cloth to be sewn downward by providing a step to the cloth to be sewn is provided, the second presser frame is pressed downward by the clamp means, and the first presser frame is the second by the elastic member. The pressing frame is elastically urged downward, and the first pressing frame presses the cloth to be sewn prior to the second pressing frame pressing the cloth to be sewn.

To hold the cloth to be sewn in tension,
After positioning the cloth to be sewn on the base frame, when the second pressing frame is driven downward by the clamp means, first, the cloth to be sewn is first urged by the first pressing frame elastically urged downward with respect to the second pressing frame. Is pressed onto the base frame. Further, when the second presser frame is driven downward, the second presser frame makes a step on the cloth to be sewn on the inner peripheral side of the first presser frame, and the cloth to be sewn is pressed downward to stretch the cloth to be sewn. Held in a state.

That is, according to this clamp-type sewn cloth holding frame, as in the clamp-type sewn cloth holding frame of the first to fourth aspects, the sewn cloth is stretched easily, reliably and efficiently. Since the first pressing frame is biased downward with respect to the second pressing frame by the elastic member, the cloth to be sewn can be reliably pressed by the first pressing frame. (1) Since it is not necessary to provide the clamp means for pressing the holding frame, the manufacturing cost can be reduced. Moreover, simply by operating the clamp means for pressing the second pressing frame downward,
Since the cloth to be sewn can be held in a stretched state, the work load can be reduced and the work efficiency can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a multi-head embroidery machine equipped with a clamp type cloth holding frame for sewing according to an embodiment of the present invention.

FIG. 2 is a plan view of the clamp type cloth holding frame for sewing.

FIG. 3 is a side view of the clamp-type sewn cloth holding frame (when the first and second presser frames are pressed and fixed).

FIG. 4 is a side view of the clamp-type sewn cloth holding frame (when fixing the first and second presser frames is released).

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a perspective view of an operator operating unit.

FIG. 7 is an operation explanatory view of the clamp type sewn cloth holding frame, and is a view showing a state in which the sewn cloth is positioned on the base frame.

FIG. 8 is an operation explanatory view of the clamp type cloth holding frame for sewing, and is a view showing a state in which the first pressing frame is pressed by the first receiving portion.

FIG. 9 is an operation explanatory view of the clamp type sewing cloth holding frame, and is a view showing a state in which the second pressing frame is pressed by the second receiving portion.

FIG. 10 is a cross-sectional view of a base frame, a first press frame, and a second press frame of Modified Example 1.

FIG. 11 is a cross-sectional view of a modified example 2 base frame, a first press frame, and a second press frame.

FIG. 12 is a perspective view of an operator operating unit according to a third modification.

FIG. 13 is a view for explaining the operation of the worker operation unit, showing a state in which the foot pedal is not operated.

FIG. 14 is an explanatory view of the operation of the operator operating portion, showing a state in which the upper portion of the foot pedal is lowered by a predetermined height.

FIG. 15 is an explanatory view of the operation of the operator operating section, showing a state where the foot pedal is lowered to the lowest position.

FIG. 16 is a base frame, a first press frame, and a second press frame of Modification Example 4 (a state in which the first press frame is pressed by the receiving portion of the base frame).
FIG.

FIG. 17 is a cross-sectional view of a base frame, a first presser frame, and a second presser frame (a state in which a cloth to be sewn is stepped down by the second presser frame and pressed downward) in Modification 4;

[Explanation of symbols]

 15 Sewing Cloth 20 Clamping Sewing Cloth Holding Frame 21, 73, 77, 85 Base Frame 23, 74 First Receiving Section 24 Step-up Section 25, 75 Second Receiving Section 30, 88 First Holding Frame 35, 89th 2 Presser frame 40 1st clamp mechanism 53 2nd clamp mechanism 90 Spring

Claims (5)

[Claims] 1. A clamp-type sewn cloth holding frame for holding a sewn cloth used for embroidery or pattern sewing in a stretched state, wherein a frame-shaped base frame and the sewn cloth are pressed onto the base frame. A first pressing frame for pressing the first pressing frame against the base frame, and a step on the cloth to be sewn on the inner peripheral side of the first pressing frame to lower the cloth to be sewn. A clamp type sewn cloth holding frame, comprising: a second presser frame for pressing the second presser frame; and a second clamp means for pressing the second presser frame downward. 2. The base frame includes a first receiving portion facing the first pressing frame, and a raised portion formed in a raised shape on the inner peripheral side of the first receiving portion from the first receiving portion, The clamp type sewing according to claim 1, further comprising: a second receiving portion that is formed in a stepped-down shape from the stepped-up portion and that faces the second presser frame on the inner peripheral side of the stepped-up portion. Cloth holding frame. 3. The base frame is formed with a first receiving portion facing the first holding frame, and a step-down shape from the first receiving portion on the inner peripheral side of the first receiving portion and on the second holding frame. The clamp type sewn cloth holding frame according to claim 1, further comprising a second receiving portion facing each other. 4. The clamp-type sewn cloth holding frame according to claim 1, wherein the second presser frame is provided on the inner peripheral side of the base frame. 5. A clamp type sewn cloth holding frame for holding a sewn cloth used for embroidery or pattern sewing in a stretched state, wherein a frame-shaped base frame and the sewn cloth are pressed onto the base frame. And a second presser frame for pressing the cloth to be sewn downward by forming a step on the cloth to be sewn on the inner peripheral side of the first presser frame, and pressing the second presser frame downward. Clamping means for holding the first press frame against the second press frame so that the first press frame presses the cloth to be sewn prior to the second press frame pressing the cloth to be sewn. A clamp-type sewn cloth holding frame comprising: an elastic member that elastically urges.