JPH0617367A - Embroidery device - Google Patents

Abstract

PURPOSE:To eliminate a difficulty in handling of an embroidery needle by stretching and extending a base fabric without slackening the central part not only for a thin or a narrow base fabric but also for a thick or a broad base fabric. CONSTITUTION:The objective embroidery device 1 is capable of stretching and extending a base fabric 13 for embroidery among frame parts (fixed frame parts) 4, 5 and 6 and a movable frame part 7 of a wholly square frame unit 2 having the frame parts on four sides and embroidering the surface of the base fabric 13. In this device, a base fabric supporting means 3 capable of applying a tension in the tensile direction and the direction crossing the tensile direction by pulling the base fabric in at least one direction on a plane is arranged among the frame parts of the frame unit 2 on the under side of the base fabric 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery device, and more particularly to an embroidery device suitable for automatic embroidery controlled by a computer.

[0002]

2. Description of the Related Art As a conventional device of this type, there is an automatic embroidery frame automatic fabric tensioning machine (Prior Art 1) and an actual embroidery flat 1-65 proposed by the present applicant.
No. 894 "Automatic fabric tensioner for hoops" (Prior art 2)
It has been known.

In prior art 1, (a) in a rectangular frame,
Frame rod AB is an L-shaped fixed frame, and frame rods C and B corresponding to A
The frame rod D corresponding to is movable back and forth in the direction of expansion of the frame, (b) a fixed nail at the intersection of the frame rod AB, the frame rod corresponding to A, and the frame rod corresponding to B. A similar fixing nail is provided at the D end, and (c) a frame rod AB that serves as a fixed frame and a frame rod CD that serves as a movable frame are each made into rails, and a plurality of slidable pieces are combined therewith and each piece is placed on top of each piece. Providing hanging nails, (d) Hooking the four corners of the base cloth to the fixed nails, and hooking multiple parts of the four sides of the base cloth to the slidable nails. As a result, (e) Spreading the rectangular frame When the frame rod CD is moved in the direction and the base cloth is stretched / expanded, the base cloth is hooked in a loose state and mechanically stretched, so that women and women can work without force. It is disclosed.

Further, in the prior art 2, in the (f) rectangular frame, the opposing frame rod AB and the frame rod C connecting them are laterally U-shaped.
A fixed frame having a character shape, and a frame rod D facing C can be moved back and forth in a direction away from C. (G) Each frame rod AB is made into a rail, and a plurality of slidable pieces are combined therewith. Providing a hanging nail projecting on the bridge, (H) Hanging multiple parts on the four sides of the base cloth with a fixed hanging nail and a slidable hanging nail. As a result, (L) the frame rod D is moved away from C. It is disclosed that if the moving base fabric is stretched / expanded, the same effects and advantages as those of the conventional technique 1 can be obtained.

As a further improvement of the prior art 2, Japanese Utility Model Publication No. 3-51351, "Slide piece movement restricting device in an automatic fabric tensioning machine for hoops" (prior art 3), was also proposed by the applicant. . This prior art 3 is
(N) A plurality of slidable pieces arranged on the rail-shaped frame rod AB and an oval ring for restricting the moving distance between the pieces,
By combining them into a chain shape, by this, when the frame rod (D) is moved away from C and the base fabric is stretched and expanded, the edge of the fabric (the side of the fabric corresponding to the frame rod AB) becomes It is disclosed that there is no drawback that the fabric is excessively elongated and the front and rear central portions (the central portions of the side portions of the material corresponding to the frame rod CD) are loosened.

[0006]

According to the above-mentioned prior arts 1 to 3, the intended effects of the thin base cloth and the narrow base cloth are sufficiently expected by the above-mentioned (a) to (l). Although it is possible, with a thick base cloth or a wide base cloth, the center part may be slightly loosened when stretched between the frames, and if it is loosened even a little, the embroidery needle enters the embroidery surface from the vertical direction. Instead, the problem is that the movement of the embroidery needle under computer control does not go well. Therefore, as a countermeasure, erected so that the threads are tightly and firmly stretched between the slide pieces of the opposite frame rod, and the base cloth is spread on the plurality of these stretched threads.
It was considered that the four sides of the base cloth should be stretched and stretched while hooking the four sides with a nail to prevent slack in the central part of the base cloth, but if the thread is tightly stretched, the inside of the opposing frame rod However, another problem occurs that the opposing pieces do not slide in good synchronization and interfere with the extension and extension of the base fabric.

[0007]

According to the present invention, instead of tightly and firmly stretching the yarn there, if the yarn is pulled in at least one direction on a plane, the tension is applied in the tension direction and the tension cross direction. The base cloth supporting means is arranged between the frames on the lower surface side of the base cloth.

Further, the above-mentioned base cloth supporting means is to be given tension as the base cloth is laid and stretched.

[0009]

The base cloth support means arranged between the frame bodies on the lower surface side of the base cloth is such that, if it is pulled in at least one direction on a plane, tension is applied in the pulling direction and the crossing direction of the pulling cloth. Only when it is pulled in one direction, tension is applied to it at least in the vertical and horizontal directions on a plane.
As a result, the lower surface of the base cloth is supported over the entire surface,
Needless to say, for thin base cloth and narrow base cloth, it is possible to prevent slackness in the central part of the base cloth due to the support of the tension even for thick base cloth and wide base cloth. It is possible. If the base cloth support means is to be tensioned as the base cloth is laid and stretched, it does not impair the movement of the slide pieces of the opposing frame rod in the past. .

[0010]

Embodiments will be described below with reference to the drawings. The embroidery device 1 mainly includes a frame body 2 and a mesh body 3 as "base cloth support means".
Composed of and. The frame body 1 includes four side frame portions 4, 5, 6,
The entire frame 7 having a rectangular shape has a frame portion 7, which is one of the four sides, with the guide 10 driven by the rotation of the screw shaft 9 by the motor 8 in the area expanding direction (the X direction shown by the arrow in FIG. 1). It is configured as a "movable frame portion" that can be moved back and forth and can be positioned in a variable manner. Further, the remaining three sides, that is, the frame portions 4, 5, and 6 have a horizontal U-shape as a whole, and each is configured as a "fixed frame portion".

On the fixed frame portions (frame portions 4 and 6) along the forward / backward movement direction of the movable frame portion (frame portion 7) (X direction indicated by an arrow in FIG. 1), a movable positionable movable nail 11 is slidable. A fixed nail 12 is provided on each of the remaining fixed frame portion 5 and the movable frame portion (frame portion 7). The movable nail 11 and the fixed nail 12 are attached to the four sides 14 and 1 of the base cloth 13.
5, 16, and 17 are hooked. As the slidable and positionally movable movable nail 11, the one described in the above-mentioned prior arts 2 and 3 can be adopted, and therefore, further description is omitted to avoid redundant description.

The mesh 3 is made of synthetic resin and has a mesh 1
The size and mesh shape of 8 can be selected according to the size and thickness of the area of the base cloth 13, and a plurality of kinds of mesh bodies 3 having different mesh sizes and shapes are prepared in advance. . As shown in FIG. 2, in the mesh body 3 of this embodiment, the length L1 between the meshes 19 and 20 located at both ends in the vertical direction (Y direction indicated by the arrow) is such that the frame portions 4 and 6 which are fixed frame portions are movable. Hanging nail 1
The length L2 between the two meshes is approximately the same as that of each mesh 1
When the movable nails 9 and 20 are locked to the corresponding movable nails 11, the movable nails 11 and 12 are just bridged between the frame portions 4 and 6. Therefore, when the mesh 18 is deformed / extended and expanded, which will be described later, the length L1 is set so that the mesh 18 has some degree of freedom but does not extend so much.

On the other hand, the length L3 of the net body 3 in the lateral direction (X direction shown by the arrow) is a movable frame portion (frame portion 7) for expanding the base cloth 13.
In the direction away from the fixed frame part (frame part 5) (left direction in FIG. 2)
It is set so as to substantially correspond to the length L4 when the mesh 18 is greatly expanded. In such a structure, the base cloth 1
To embroider 3 the movable nail 11 and the fixed nail 12
First, the mesh bodies 3 are stretched between the frame bodies 2 by locking the meshes 18 at the corresponding ends using the
Are also laid between the frame bodies 2 so as to overlap with the net body 3.

Next, the movable frame portion (frame portion 7) is indicated by an arrow X in FIG.
The net body 3 is pulled together with the base cloth 13 by advancing to the left in the direction and separating from the fixed frame portion (frame portion 5). That is, the net body 3 is pulled in the traveling direction of the movable frame portion (frame portion 7) as the base cloth 13 is laid and stretched. At this time, the length L1 between the meshes 19 and 20 substantially corresponds to the length L2 between the movable nails 11 of the frame portions 4 and 6 which are fixed frame portions,
Since there is some freedom there, the corresponding movable nails 11 in the frame portions 4 and 6 easily slide in the pulling direction without rattling the corresponding positions.

Then, the base cloth 13 is erected and stretched so that the frame body 2 is formed.
A tension is applied between the base cloth 13 and
The mesh 18 is deformed / extended and expanded in accordance with the erection / expansion of the net body 3, and a sufficient tension is applied to the entire surface of the mesh body 3 to support the base cloth 13 on the lower side thereof. That is, mesh 1
8 is pulled to the left in the X direction in FIG. 2, so that tension is applied in the horizontal direction (X direction) and then in the vertical direction (Y direction).

Although not shown in the drawings, in addition to the above-described embodiment, a frame body having a movable frame portion that can be moved back and forth in the X and Y directions with respect to the L-shaped fixed frame portion and can be variably positioned is used as the frame body. In this case, the net 3 is applied with tension not only in the lateral direction (X direction) and the longitudinal direction (Y direction) but also in the oblique direction (Z direction in FIG. 2).

[0017]

As described above, according to the present invention, the base cloth supporting means for applying a tensile force in the pulling direction and the crossing direction of the tension by pulling the flat cloth in at least one direction on the plane has a frame on the lower surface side of the base cloth. Since it is placed between the bodies, the base cloth is reliably supported by the tension in the vertical and horizontal directions given to the base cloth support means by tension, so it is thicker than thin base cloth or narrow base cloth. Even with the base cloth or the wide base cloth, the central portion is not loosened, and there is an effect that the embroidery needle can be moved appropriately by computer control.

When a net body is used as the base cloth supporting means, the net deforms, expands and expands when pulled, so that the movable nails slide easily in the pulling direction without rattling the corresponding positions. Therefore, there is an effect that tension can be applied to the mesh body between the frame bodies, and can be easily performed in the vertical and horizontal directions and further in the oblique direction.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embroidery device as an embodiment.

FIG. 2 is a partial plan view of a mesh body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Embroidery device 2 Frame body 3 Net body (base cloth support means) 13 Base cloth 18 mesh

Claims (6)

[Claims] 1. An embroidery device for embroidering on a surface of a base fabric by laying and spreading a base fabric for embroidery between frame bodies of a generally rectangular shape having four-sided frame portions, and a frame on the lower surface side of the base fabric. An embroidery device characterized in that between the bodies, a base cloth support means is provided, which applies tension in a pulling direction and a pulling cross direction by pulling in at least one direction on a plane. 2. The embroidery device according to claim 1, wherein the base cloth supporting means is provided with tension as the base cloth is laid and stretched. 3. The frame body is configured such that at least one side frame portion is a movable frame portion that is movable back and forth in the area expansion direction and is variable in position, and the remaining side frame portion is a fixed frame portion, and the movable frame portion is movable back and forth. The fixed frame portion along the moving direction is provided with slidable variable position movable nails, and the movable frame portion is provided with fixed nails, and the base cloth supporting means arranged between the frame bodies is a movable frame. The tension is applied in the traveling direction of the section.
Or the embroidery device described in 2. 4. The embroidery device according to claim 1, wherein the base cloth supporting means is a net body. 5. The embroidery device according to claim 1, wherein the base cloth support means is a net made of synthetic resin. 6. The mesh size and mesh shape of the mesh body can be selected according to the area and thickness of the base cloth.
Alternatively, the embroidery device according to claim 5.