JP2001192959A - Device for attaching embroidery frames - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save the time anlabor for detaching a large embroidery frame to which a large processing cloth extending over plural sewing machine heads is placed under a tensioned condition. SOLUTION: This device 1 for attaching embroidery frames is used for attaching small embroidery frames for placing respective small processing cloths under a tensioned and independent condition regarding every sewing machine head instead of placing a large processing cloth under a tensioned condition to the inside of the large embroidery frame 2 which is equipped with a protruding ridge-like receiving frame 4 installed along the inside edge of a rectangular frame-like driving frame 3 and nippingly holds the peripheral part of the large processing cloth extending over plural sewing machine heads between the frame 4 and a covering frame caped on the frame 4 in such a way that the large processing cloth is attached to the inside of the frame 4. The device 1 is equipped with an attachment member 6 made up in such a way as to nippingly and detachably hold both sides 4a and 4b extending in the length direction of the frame 4 and is made up in such a way as to be installed within the large embroidery frame 3 through the member 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a large embroidery frame having a rectangular frame shape extending over a plurality of sewing heads.
The present invention relates to an embroidery frame mounting device for mounting a small embroidery frame on which an independent small work cloth is stretched for each sewing head.

[0002]

2. Description of the Related Art A conventional multi-head embroidery sewing machine is provided with a rectangular frame-shaped drive frame 51. When a large work cloth W1 extending over a plurality of sewing machine heads is stretched as shown in FIG. A large embroidery frame 55 in the shape of a rectangular frame to be fitted into the frame is attached with screws 52. The large embroidery frame 55 is provided with a ridge-shaped receiving frame 53 disposed along the inside thereof, and the peripheral portion of the large work cloth W1 is sandwiched between the receiving frame 53 and the receiving frame 53. To stretch a large work cloth W1 over a plurality of sewing heads. When a small embroidery frame (not shown) for stretching an independent small work cloth for each sewing head is used as shown in FIG. The embroidery frame mounting device 50 for holding is attached to the drive frame 51 with screws 52 instead of the large embroidery frame 55.

[0003]

However, when the embroidery frame mounting device 50 is used, the large embroidery frame 5 is moved from the drive frame 51 to the large embroidery frame 5.
5 has to be removed and replaced with the embroidery frame mounting device 50, which is troublesome.

When the embroidery frame mounting device 50 is used, a large embroidery frame 5 having a rectangular frame shape removed from the drive frame 51 is used.
There is a problem in that a place for storing 5 is required.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, to save the trouble of removing a large embroidery frame for stretching a large work cloth over a plurality of sewing heads, and to store the removed large embroidery frame. It is an object of the present invention to provide an embroidery frame mounting device which does not need to secure the embroidery frame.

[0006]

In order to achieve the above object, an embroidery frame mounting apparatus according to the present invention includes a ridge-shaped receiving frame disposed along an inner edge of a rectangular frame-shaped driving frame. A large work cloth extending between the receiving frame and the cover frame, the peripheral portion of the large work cloth extending over a plurality of sewing machine heads being stretched in the receiving frame. An embroidery frame mounting device for mounting a small embroidery frame for stretching an independent small work cloth for each sewing machine head, instead of stretching the large work cloth in the embroidery frame, wherein the length of the receiving frame is A mounting portion configured to detachably hold both side surfaces extending in the vertical direction, and to be disposed in the large embroidery frame via the mounting portion.

The embroidery frame mounting device according to the present invention includes a ridge-shaped receiving frame disposed along an inner edge of a rectangular frame-shaped driving frame, and the receiving frame and a cover placed on the receiving frame. The large work cloth is stretched in a large embroidery frame in which a peripheral portion of the large work cloth extending across a plurality of sewing heads is sandwiched between the frames and the large work cloth is stretched in a receiving frame. An embroidery frame mounting device for mounting a small embroidery frame for stretching an independent small work cloth for each sewing head, the mounting device being detachably mounted on an upper surface of the drive frame, It is configured to be disposed in the large embroidery frame via a mounting portion.

Although the embroidery frame mounting device is not particularly limited, the following embodiments can be exemplified. (1) A mode in which a fitting hole for detachably attaching the small embroidery frame is provided, and the small embroidery frame is formed in a plate shape that can be loosely fitted inside the large embroidery frame. (2) A mode in which the small embroidery frame is formed in an arm shape for detachably connecting and supporting the receiving frame or the drive frame.

The mounting portion may include a positioning portion for determining a mounting position in the width direction of the receiving frame or the drive frame.

[0010]

1 to 4 show an embroidery frame mounting device 1 of a sewing machine according to a first embodiment of the present invention. The embroidery frame mounting device 1 includes a plurality of sewing heads (not shown). ) Can be attached to the large embroidery frame 2 on which the large work cloth W1 is stretched instead of stretching the large work cloth.

The large embroidery frame 2 is mounted on a sewing machine table 8 and is formed integrally with a rectangular frame-shaped drive frame 3 driven by a frame drive mechanism 9 in a horizontal plane. The large embroidery frame 2 includes a ridge-shaped receiving frame 4 disposed along the inner edge of the drive frame 3, and a covering frame 5 that is elastically detachably mounted on the receiving frame 4. . The receiving frame 4 has a substantially Ω-shaped cross section. Then, as shown in FIG.
And the covering frame 5, the peripheral portion of the large work cloth W1 is sandwiched between the large embroidery frame 2 and the large work cloth W.
1 is installed.

The embroidery frame mounting device 1 is made of plywood,
As shown in FIG. 2, a plurality of the embroidery frames 2 are arranged side by side in the horizontal direction and loosely fitted, and are arranged in the large embroidery frames 2 via the mounting members 6. At the approximate center of the embroidery frame mounting device 1 in the front-rear direction, three substantially circular fitting holes 11 arranged in the long side direction are formed. A small embroidery frame 7 in which an independent small work cloth W2 is stretched for each sewing machine head is provided in the fitting hole 11.
Are removably fitted and attached.

Three mounting members 6 are arranged on the upper surface of both long side edges 1a of the embroidery frame mounting device 1 at substantially equal intervals, and the embroidery frame mounting device faces the inner side surface 4a of the receiving frame 4. 1
Are arranged at an interval on the upper surface of the short side edge portion 1b. Each mounting member 6 is provided at the edge 1 of the embroidery frame mounting device 1.
a, 1b with the distal end projecting from the base end
Fixed at 2.

As shown in FIGS. 2 and 3, both end surfaces 4a, 4 extending in the longitudinal direction of the receiving frame 4 are provided on the distal end side of the mounting member 6.
b is provided. The holding portion 10 is formed integrally with the mounting member main body 6a.
Contact surface 13 that contacts the inner surface 4a extending in the length direction
And a contact surface 14 formed on a holding piece 6b separate from the mounting member main body 6a and in contact with an outer surface 4b extending in the length direction of the receiving frame 4, and both contact surfaces 13 and 14 approaching each other. And a bolt 15 and a nut 16 as fastening means for fastening the mounting member body 6a and the holding piece 6b. Each of the contact surfaces 13 and 14 is formed in a substantially concave arc shape in cross section so as to contact in a state substantially along the shape of each of the side surfaces 4 a and 4 b of the receiving frame 4.

According to the embroidery frame mounting apparatus 1 configured as described above, the mounting member 6 is configured so as to detachably hold both side surfaces 4a and 4b extending in the length direction of the receiving frame 4. Therefore, unlike the related art, there is no need to remove the large embroidery frame 2 from the drive frame 3 when using the embroidery frame mounting device 1. Therefore, the following effects can be obtained. (1) The drive frame 3 and the large embroidery frame 2 can be integrally formed, whereby the strength of the drive frame 3 and the large embroidery frame 2 can be mutually improved and the number of parts can be reduced. (2) The labor for removing the large embroidery frame 2 can be saved. (3) There is no need to secure a place to store the large embroidery frame 2 in the shape of a rectangular frame.

FIGS. 5 and 6 show an embroidery frame mounting device 20 of a sewing machine according to a second embodiment. The embroidery frame mounting device 20 has a mounting member 21 configured as follows. Only the point is different from the first embodiment.

The mounting member 21 has a screw hole 21a for detachably mounting on the top surface of the drive frame 3 with a screw 22 at the distal end side.
Are formed. In addition, a protrusion 23 as a positioning portion is formed on the lower surface on the distal end side of the mounting member 21. The protruding portion 23 has a surface 23a that contacts the outer surface 4b of the receiving frame 4.
And a surface 23b that comes into contact with the side surface of the drive frame 3 on the receiving frame side, and the mounting positions of the drive frame 3 and the receiving frame 4 in the width direction are determined by the two surfaces 23a and 23b (in the illustrated example). There is no particular limitation, both sides 23a, 2
The mounting position may be determined on any one of the surfaces 3b. ).

The same effect as the embroidery frame mounting device 1 of the first embodiment can be obtained by the embroidery frame mounting device 20 of the present embodiment.

Note that the present invention is not limited to the configuration of the above-described embodiment, and may be embodied by appropriately changing, for example, the following without departing from the spirit of the invention. (1) In each embodiment, the embroidery frame mounting devices 1 and 20 are mounted on the large embroidery frame 2 of a type formed separately from the drive frame 3. (2) Projection 2 as positioning part in the second embodiment
Omit 3

(3) The embroidery frame mounting device is formed in the form of an arm which removably connects and supports the small embroidery frame 7 to the receiving frame 4 or the drive frame 3. As an example of this embodiment, FIG.
FIG. 7A shows an embroidery frame mounting device 30 provided with a mounting portion 30a having the same holding portion 10 as the embroidery frame mounting device 1 of the first embodiment, and FIG. 7B shows the embroidery frame of the second embodiment. An embroidery frame attachment device 33 having an attachment portion 33a configured to be detachably attached to the upper surface of the drive frame 3 with the screw 22 similarly to the attachment device 20 is shown.

[0021]

As described above in detail, according to the embroidery frame mounting apparatus according to the first to third aspects of the present invention, the labor for removing the large embroidery frame for stretching the large work cloth over a plurality of sewing heads is eliminated. And an excellent effect that there is no need to secure a place for storing the removed large embroidery frame.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which an embroidery frame mounting device according to a first embodiment of the present invention is disposed in a large embroidery frame.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a view similar to FIG. 2, showing a mounting method of the embroidery frame mounting apparatus.

FIG. 4 is a view similar to FIG. 2, showing a state in which a large work cloth is stretched over the large embroidery frame.

FIG. 5 is a partially enlarged view of an embroidery frame mounting device according to a second embodiment of the present invention.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;

FIG. 7 shows a modified example of the embroidery frame mounting device of each embodiment,
(A) is a plan view of a modification of the first embodiment, and (b) is a plan view of a modification of the second embodiment.

FIG. 8 is a sectional view showing a mounting structure of a conventional embroidery frame mounting device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 embroidery frame mounting device 2 large embroidery frame 3 drive frame 4 receiving frame 5 cover frame 6 mounting member as mounting portion 7 small embroidery frame 10 holding portion 15 bolt 16 nut 20 embroidery frame mounting device 21 mounting member as mounting portion 21a screw Hole 22 Screw 23 Projection as positioning part 30 Embroidery frame mounting device 30a Mounting part 33 Embroidery frame mounting device 33a Mounting part W1 Large work cloth W2 Small work cloth

Claims (3)

[Claims] The present invention further comprises a ridge-shaped receiving frame disposed along an inner edge portion of a rectangular frame-shaped driving frame, and a plurality of sewing machines are provided between the receiving frame and a covering frame placed on the receiving frame. Instead of stretching the large work cloth in a large embroidery frame that clamps the periphery of the large work cloth across the head and stretches the large work cloth into the receiving frame, instead of stretching the large work cloth, An embroidery frame mounting device for mounting a small embroidery frame on which an independent small work cloth is stretched, comprising a mounting portion configured to detachably hold both side surfaces extending in a length direction of the receiving frame. An embroidery frame mounting device configured to be disposed in the large embroidery frame via the mounting portion. 2. A sewing machine according to claim 1, further comprising a ridge-shaped receiving frame disposed along an inner edge portion of the rectangular frame-shaped driving frame, wherein a plurality of sewing machines are provided between the receiving frame and the covering frame placed on the receiving frame. Instead of stretching the large work cloth in a large embroidery frame that clamps the periphery of the large work cloth across the head and stretches the large work cloth into the receiving frame, instead of stretching the large work cloth, An embroidery frame mounting device for mounting a small embroidery frame on which an independent small work cloth is stretched, comprising a mounting portion detachably mounted on an upper surface of the drive frame, wherein the large embroidery frame is mounted via the mounting portion. An embroidery frame mounting device configured to be disposed in the embroidery frame. 3. The embroidery frame mounting device according to claim 2, wherein the mounting portion includes a positioning portion that determines a mounting position in the width direction of the receiving frame or the drive frame.