JPH0210996Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a sewing machine embroidery device, and in particular a craft presser which is equipped with a fabric presser frame for holding fabric and performing embroidery sewing, and is attached to the presser bar of the sewing machine. Regarding equipment.

(Prior Art) In recent years, sewing machines equipped with electronic storage devices and capable of selectively sewing a large number of sewing patterns have been provided, and the sewing machines have been used for so-called craft sewing in which the patterns are further combined.

(Problem that the invention aims to solve) Even though there are a wide variety of sewing patterns, their size is limited by the width of the sewing machine's needle, and the combination patterns that can be created automatically are linear in the feed direction. When sewing large patterns, it was necessary to draw a sketch on the cloth in advance and manipulate the cloth as needed to form the pattern.

An object of the present invention is to provide a device for forming circular patterns such as large flower petals by arranging them radially using a single pattern built into a sewing machine.

(Means for solving the problem) In the present invention, the leg body is engaged with a presser foot holder fixed to the presser bar of the sewing machine and has an opening for the swinging width of the needle, and the leg body is fitted on the outside of the leg body and can be slid. A craft presser frame, which rotatably fits and supports a cloth holding means on its outer periphery, is fixed to the slide frame using a slide presser foot that includes a slide frame that is supported and feeds the cloth in cooperation with a feed dog.

(Function) The cloth is pasted on the cloth holding means and moved in the feeding direction together with the slide frame to form a seam, and then the cloth holding means is rotated at predetermined angles with respect to the slide frame and the fixed presser frame. Then arrange the seams radially to form a large pattern.

(Example) A first example of the present invention will be described in detail with reference to FIGS. 1 to 7. In FIGS. 1 to 4, reference numeral 2 designates a known slide presser foot normally used when sewing buttonholes, and is removably engaged with a presser foot holder 1 fixed to a presser bar 3 with a screw 4.
The slide presser foot 2 engages with the presser foot holder 1 as shown in FIG. 5, and has a long hole 17a for zigzag sewing.
The leg body 17 has a leg body 17 that covers the left and right sides and a part of the upper surface and the bottom part of both sides of the leg body and supports the leg body so as to be slidable in the cloth feeding direction, and has a relief hole in the bottom part that is long in the sliding direction. 18a, and the lower surface cooperates with the feed teeth (not shown) of the feed mechanism to pinch and feed the cloth, and the rear end of the slide frame has a slide frame 18 located at the rear of the leg body 17. A stopper 19 for locking forward movement of the slide frame 18 relative to the leg body is arranged and fixed, and a leaf spring 20 wound in a coil is stored in a storage hole 19a provided on the lower surface of the stopper. Then, one end of the leaf spring is engaged with a spring locking portion provided on the leg body 17. Due to the action of this leaf spring 20, the stopper 19 at the rear end of the slide frame 18 always presses against the rear end surface of the leg body 17, that is, the slide frame 18 is resiliently moved against the leg body 17 in the direction opposite to the direction in which the cloth is fed. It is becoming more and more common.

The square hole portion 5a of the craft presser frame 5 can accommodate the slide presser 2, and is formed to be larger than the length of the slide presser 2 in the feeding direction, so that the position of the slide presser 2 in the feed direction with respect to the craft presser frame 5 can be adjusted. It can now be inserted.

The slide presser includes a slide presser plate 6, a screw 7,
It is secured to the craft presser frame 5 by a nut 8, and the distance "S" between the center "O" and the needle drop center M with respect to the circular outer periphery of the craft presser frame 5 can be adjusted using an adjusting screw 9 and a nut 10. ing. As shown in FIG. 2, the craft middle frame 11 is held between the craft presser frame 5 and the presser plate 12, and has a shim screw 13 and a female screw portion 1 formed on the presser plate 12.
It is prevented from coming off by 2a. Numeral 14 is an adjustment screw which is screwed into the female threaded portion 12a and is used when it is desired to fix the rotation of the craft presser frame 5 and the craft middle frame 11. Reference numeral 15 denotes a craft outer frame, and the inner circumferential side thereof is provided with elastic claws 15a for holding the cloth 16 in tension with the outer circumference of the craft inner frame 11. When the apparatus is constructed and assembled as described above, the slide presser 2 is attached so that the bottom part thereof protrudes from the other bottom surface, as shown in FIG.

Next, I will explain how to sew using this craft presser foot.

In order to form the seam shown in FIG. 7, an instruction mark 2b indicating the needle drop position is formed on the slide presser foot 2 and an indication is made on the craft presser frame 5 as shown in FIGS. 1 and 2. 5b, adjust the adjusting screw 9 and nut 10 to the position of distance S,
A formation indication 5c is fixed on the outer periphery of the craft presser frame 5 and a formation instruction mark 1 is placed on the craft middle frame 11.
1a and secure with the adjusting screw 14.

The craft inner frame 11 and the craft outer frame 15
A cloth 16 is inserted between the two and stretched and fixed. The presser holder 1 attached to the presser bar 3 with the screw 4 and the slide presser 2 are engaged as shown in FIG. 2.

The craft presser device to which the cloth is attached is attached to the plate spring 2.
The stopper 19 is in pressure contact with the leg body 17 due to the action of 0.

Next, select the sewing pattern for your sewing machine. In this embodiment, a single sewing pattern A shown in FIG. 8 is used. Lower the presser foot lift lever of the sewing machine and lower the craft sewing device. As mentioned above, in the craft sewing device, the lower surface of the slide presser foot 2 protrudes to the lowest point, and abuts against the throat plate and feed dog by applying presser foot pressure through the cloth.

In Fig. 6, the needle first falls on M ₁ and then transfers the sewing pattern A (Fig. 8) stored in the sewing machine to 2 patterns L ₁
Only sew. Next, when the presser foot lifting lever is raised to raise the craft presser device, the craft presser frame 5 holding the cloth 16 returns to the sewing start position, the needle drop position _M1 , by the action of the leaf spring 20. Next, loosen the adjustment screw 14 and rotate the craft inner frame 11 and craft outer frame 15 holding the cloth 16 by θ, so that the display 5c of the craft presser frame 5 matches the indicator mark 11a of the craft middle frame 11. Then, fix it with the adjusting screw 14. By rotating the cloth 16 with respect to the craft presser frame 5, the needle position is located at _M2 , and two patterns _L1 of sewing pattern A are sewn from _M2 . In this way, the craft middle frame 11
is rotated by θ and sewn, and each single sewing pattern is always sewn at a distance S apart from the center of rotation "O", making a complete rotation to form a combination pattern as shown in FIG. Note that L is the movable range of the slide presser foot 2, and the pattern _L1 is sent by the feed dog of the sewing machine.

Next, a second embodiment will be described with reference to FIGS. 9 to 11. In the first embodiment, the center "O" of the outer circumferential circle of the craft presser frame 5 (that is, the center of rotation of the cloth to be held) coincides with the extension line in the feed direction of the needle swing center M position of the slide presser foot 2. On the other hand, this embodiment has the same structure except that it is offset by the R dimension as shown in FIG. 9.

In FIG. 9, the center "O" of the outer circumferential circle of the craft presser frame 5 is set at a distance of S from the needle drop center M of the sewing machine in the feed direction and R in a direction perpendicular to the feed. The seam formation is the same as in the first embodiment, using cloth 1.
6 to the craft inner frame 11 and the craft outer frame 1
5 and sew the sewing pattern B shown in FIG. 10 from M ₁ as shown in FIG. The cloth 16 moves together with the craft presser frame 5 and returns to _M1 . Next, the adjustment screw 14
When the craft presser device is lowered by loosening and rotating the craft intermediate frame 11 by θ and operating the presser foot lifter, the needle drop is set at position _M2 . Similarly, the sewing patterns B shown in FIG. 10 are formed one after another and combined radially.

By using this device, a stitched pattern is formed in which the seams are tilted by θ at positions separated by a distance of √ ² + ² from the rotation center “O” of the cloth.

In addition, in the first embodiment, the slide presser foot 2 is
Although an example has been shown in which the feed can be adjusted in the feed direction, the feed may be similarly adjustable in the right angle direction.

(Effects) As described above, according to the present invention, the single patterns built into the sewing machine can be positioned in polar coordinates and sewn radially to combine them, making it possible to easily form sewing patterns such as large flower patterns.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the craft presser device, Fig. 2 is a cross-sectional view of the craft presser device indicated by -, Fig. 3 is a cross-sectional view of the craft presser device indicated by -, Fig. 4 is a diagram of the parts that make up the device, and Fig. 5 is a diagram of the slide presser. A perspective view, FIG. 6 is an explanatory diagram of combination sewing, FIG. 7 is a combination pattern, FIG. 8 is a single pattern built into the sewing machine used in the first embodiment, and FIG.
10 is a plan view of a craft presser foot device according to another embodiment, FIG. 10 is a single pattern built into a sewing machine used in another embodiment, FIG. 11 is an explanatory diagram of combination sewing, and 1 is a presser foot holder; 17 is a leg body, 18 is a slide frame, 2 is a slide presser, and 5 is a craft presser frame.

Claims (1)

[Claims for Utility Model Registration] 1. A leg body that engages with a presser foot holder that is fixed to a presser bar that is vertically supported on an arm of the machine frame, and that has an opening for the swinging width of the needle, and on the outside of the leg body. a slide presser comprising a slide frame that fits and is slidably supported and cooperates with a feed dog to feed the cloth;
A craft presser comprising a craft presser frame fixed to the slide frame and rotatably fitting and supporting cloth holding means on the outer periphery. 2. The craft presser device according to claim 1, wherein the center of rotation of the cloth holding means is located on an extension line in the feed direction of the needle drop center of the slide presser foot. 3. The craft presser device according to claim 1, wherein the center of rotation of the cloth holding means is located at a position offset from an extension line in the feeding direction of the needle drop center of the slide presser foot. 4. A utility model registration claim characterized in that the center of rotation of the cloth holding means can be adjusted in position on an extension line of the needle drop center of the slide presser in either the feeding direction or the direction perpendicular to the feeding direction. The craft presser according to any one of scopes 2 and 3.