JPH0733991U - Sewing machine embroidery frame mounting device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] When sewing more than the sewing range of the carriage, larger sewing is performed by changing the position of the embroidery frame with a simple operation. [Structure] An embroidery frame attachment device of a sewing machine includes a pair of positioning pins 2, which are installed on an embroidery frame holder 1 at intervals.
3, a mounting plate 7 for supporting the embroidery frame 4, a long groove 8 formed on the mounting plate 7 and capable of being fitted into one of the pair of pins 2, 3 of the embroidery frame holder 1 and having one open end, and the long groove A plurality of holes 9 and 10 which are formed on the mounting plate 7 on the extension line of 8 and can be fitted into the other pins 3 and 2, and the mounting plate 7 is the embroidery frame holder 1.
And a leaf spring 11 provided on the embroidery frame holder to prevent the mounting plate from floating above the embroidery frame holder 1 when connected to the positioning pin.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sewing machine embroidery frame attachment device.

[0002]

[Prior art]

 Conventionally, as an example of a sewing machine embroidery frame attachment device, the device disclosed in Japanese Utility Model Laid-Open No. 1-113352 has been provided.

In this device, a slide groove 56 is formed in a part of an embroidery frame, and two small shafts 58 integrally provided on an oval mounting plate 57 are fitted in the slide groove 56. It has been A fitting hole 60 for a tightening screw 59 is provided between the two small shafts 58, and a small leaf spring 61 is fixed to the small shaft 58 by an E ring 62.

The embroidery frame holder 51 having the screw hole 49 at the center and the two elongated holes 50 on both sides of the screw 49 hole in the embroidery frame 24 is provided with the two small shafts 58 and the two small shafts 58. It is fixed by fitting it into the long hole 50 and tightening the set screw 59 into the central screw hole 49. When the embroidery frame 24 is attached and detached by attaching and detaching the set screw 59, the set screw 59 is loosened, and the embroidery frame 24 is slid and sewn again to increase the embroidery area.

As another example of facilitating attachment and detachment of the embroidery frame, a work holder holding device disclosed in Japanese Utility Model Publication No. 4-44638 is provided. In this device, the embroidery frame holder 13 and the embroidery frame 18 are engaged with each other so that they can be connected to each other, and the elastic action member 17 for biasingly joining the embroidery frame 18 in a direction perpendicular to the upper side of the engagement surface is used. The embroidery frame 18 is attached to and detached from the embroidery frame holder 13 against the elastic action of the elastic action member 17.

[0006]

[Problems to be solved by the device]

 However, in the conventional method as described above, it is necessary to attach and detach and loosen the tightening screw to attach and detach and move the embroidery frame, and to fix it. In addition, because of the long groove, the distance moved cannot be known, and when performing subsequent embroidery it is difficult to position the starting point, and if this is not done properly, misaligned embroidery will be performed.

The present invention has been made to solve the above-mentioned problems, and the purpose thereof is to easily attach and detach the embroidery frame and to move the embroidery frame. When performing, the start point is moved by a distance or the program can be corrected automatically, so that the embroidery finish can be made beautiful and comfortable.

[0008]

[Means for Solving the Problems]

 To achieve this object, the present invention provides a pair of positioning pins installed at intervals on an embroidery frame holder and one of a pair of pins of the embroidery frame holder formed on a mounting plate for supporting the embroidery frame holder. And a long groove whose one end is open and which extends in the row-arrangement direction of the pair of pins, and which is formed on the attachment plate on the extension line of the long groove with a space and which is formed on the other pin of the embroidery frame holder. A leaf spring provided in the embroidery frame holder to prevent the mounting plate from floating above the embroidery frame holder when the mounting plate is connected to the positioning pins of the embroidery frame holder and the plurality of holes that can be fitted. Have and.

[0009]

[Action]

 According to the present invention, a pair of positioning pins provided on an embroidery frame holder are fitted in a long groove of a mounting plate and one of the positioning holes against a resilient force of a leaf spring to embroider a certain range. Next, float the mounting plate over the positioning pin, slide it to the other positioning hole, fit the mounting plate, and sew, so that the subsequent embroidery can be performed.

[0010]

【Example】

 An embodiment embodying the present invention will be described below with reference to the drawings.

A known electronic embroidery sewing machine includes a needle bar having a needle at its lower end which is reciprocally moved up and down by the rotation of the main shaft of the sewing machine and a thread catching device which cooperates with the needle bar to form a stitch. A carriage (not shown) moved in the XY directions by an X-axis pulse motor and a Y-axis pulse motor that are driven in synchronization with the vertical reciprocating motion of the needle bar based on a command from the slave controller. ) Is provided.

An embroidery frame holder 1 is attached to the carriage on the work cloth supporting surface of the electronic embroidery sewing machine. On the embroidery frame holder 1, a pair of positioning pins 2 and 3 are provided so as to project at intervals.

The embroidery frame 4 that holds a work cloth (not shown) includes an outer frame 5 and an inner frame 6, and a mounting plate 7 is fixed to the outer frame 5. A long groove 8 that can be fitted into one of the pair of positioning pins 3 is formed in the mounting plate 7, and the long groove 8 extends in the row direction of the pair of positioning pins 2 and 3 and has one end. It is open. A plurality of holes 9 and 10 are formed at intervals on the attachment plate 7 on the extension line of the long groove 8 and can be fitted with the other pin 2 of the embroidery frame holder 1 described above. Further, the length of the long groove 8 is set between the holes 9 and 10 so that the engagement with the positioning pin 3 does not come off when any of the holes 9 and 10 is fitted with the positioning pin 2. It is formed longer than the distance.

The leaf spring 11 prevents the mounting plate 7 from floating above the embroidery frame holder 1 when the mounting plate 7 is connected to the positioning pins 2 and 3 of the embroidery frame holder 4. Is fixed by three screws 13 via a spacer 12, and a bent portion 11a engaging with the upper surface of the mounting plate 7 is formed at the free end.

To mount the embroidery frame 4 having such a configuration on the embroidery frame holder 1, the positioning pin 3 and the long groove 8 of the mounting plate 7 are fitted to each other and the spring 11 is resisted against the elastic action of the plate spring 11. The mounting plate 7 is pushed between the bent portion 11a at the front end of the and the embroidery frame holder 1. Further, the mounting frame 7 is lifted up against the leaf spring 11 and the holes 9 and 10 of the mounting plate 7 are placed on the positioning pin 2 and then appropriately slid to fit into the hole 9 at the left end. 4 is held by the embroidery frame holder 1.

In this state, the work cloth stretched on the embroidery frame 4 is embroidered by the movement of the needle and the carriage. Next, the left end of the mounting plate 7 is lifted, and as shown by the chain double-dashed line in FIG. 2, slide on the positioning pin 2 to fit the right hole 10 with the positioning pin 2. After that, if the original position of the carriage is shifted by the previously known movement distance and re-embroidery is performed, the subsequent embroidery can be performed from the state before the slide.

[0017]

[Effect of device]

 As is apparent from the above description, according to the present invention, the embroidery frame can be easily attached and detached, and the embroidery frame can be attached at a fixed position by changing the position of the embroidery frame attachment plate by a simple operation. Can be bigger. In addition, since the distance that can be increased is known, it is easy to set the original position after changing the position, and the program can be automatically corrected so that there is no misalignment even if re-embroidery is performed, resulting in a beautiful finish. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embroidery frame attachment device of the present invention.

FIG. 2 is a plan view of the device.

3 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Embroidery frame holder 2,3 Positioning pin 4 Embroidery frame 7 Mounting plate 8 Long groove 9,10 Hole 11 Leaf spring

Claims (1)

[Scope of utility model registration request] 1. An embroidery frame holder that moves in a predetermined plane in synchronism with the reciprocating motion of a needle, a pair of positioning pins installed at intervals on the embroidery frame holder, and embroidery that holds cloth or the like. A mounting plate for supporting the frame; and a long groove formed on the mounting plate that can be fitted to one of the pair of pins of the embroidery frame holder and that extends in the row direction of the pair of pins and has one end open. A plurality of holes formed at intervals on the attachment plate on the extension line of the long groove and capable of fitting with the other pin of the embroidery frame holder; and when the attachment plate is connected to the positioning pin of the embroidery frame holder, An embroidery frame attachment device for a sewing machine, comprising: a leaf spring provided on the embroidery frame holder to prevent the attachment plate from floating above the embroidery frame holder.