JPH0246857Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a multi-needle needle stopper used for locking two needles in a two-needle sewing machine.

[Conventional technology]

In machine sewing, a two-needle lockstitch machine is used when performing parallel stitches, etc.
A needle stopper for multiple needles is required.

By the way, the needle stopper for multiple needles on conventional sewing machines is
As shown in FIG. 4, a pair of needle insertion holes b, b are bored at a predetermined interval in the bottom of the needle stock a, and
It has a structure in which screw holes c and c are bored from the front side to penetrate perpendicularly to these needle insertion holes b and b, and the needles d and d inserted into the needle insertion holes b and b are screwed with screws e and e. It was something that would stick.

[Problem that the invention attempts to solve]

Since the conventional needle stopper for multiple needles has such a structure, the screw e for holding the thin needle d needs to have an extremely small diameter, and therefore the screw head is also small, resulting in needle breakage, etc. Sometimes a small screw e
It was extremely difficult to replace the needle as it had to be removed and tightened.

Also, the distance between the two needles d and d is 1/8 inch, 3/1
If needles with a required spacing, such as 6 inches, are required by the standard, the needle stock a itself must be replaced according to the conventional needle stopper for multiple needles. However, when removing needle stock a and installing needle stock a with the required spacing, insert the shaft screw f into the needle stock attachment part of the sewing machine so that the direction of the needle through hole in the needle plate matches the direction between needles d and d. It is necessary to screw them together, but this work requires skill and is difficult for workers such as seamstresses, so the replacement work is carried out by specialized technicians, which requires sewing machine work. There was also the problem that the process was delayed.

This invention solves the problems in the conventional example mentioned above, and allows for easy needle replacement and allows for easy change to needles with the required spacing without changing the needle stock. The technical problem is to provide a needle stopper.

[Means for solving problems]

In order to achieve the above-mentioned problems, this invention provides a multi-needle needle stopper for a sewing machine with a concave groove in which a pair of screw holes are bored on the left and right side in the upper part of the front surface, and also on the left and right side. Each needle stock body has at least two vertical needle storage grooves arranged in parallel on the lower front part, and one needle stock body that fits into the groove and corresponds to the screw hole.
It has a pair of left and right needle holder plates each having a fitting protrusion with a plurality of screw holes projecting from the upper part of the back surface, and the needle stock body and the pair of needle holder plates are connected to each other by the needle holder plates. are arranged in the horizontal direction, and the fitting protrusions of each needle holder plate are fitted into the grooves of the needle stock main body so that they engage with each other, and the threaded holes of the needle stock main body and the threaded holes of each needle holder plate are connected to each other. By inserting screws into each
The device is characterized in that a pair of left and right needles are respectively fixed in the needle storage grooves.

[Effect]

This device has the above-mentioned configuration, and the needle stopper for multiple needles of this device does not stop the needles directly with a screw, but by screwing the needle stock body and the needle holder plate together. It will be worn.

Furthermore, when a needle for the required time is required, it is only necessary to change the needle storage groove into which the needle is inserted, and there is no need to remove the needle stock body from the needle stock mounting portion of the sewing machine.

〔Example〕

Hereinafter, preferred embodiments of this invention will be described with reference to the drawings.

Fig. 1 is a front view of a needle clamp for multiple needles of a sewing machine showing one embodiment of this invention, Fig. 2 is a side view thereof,
FIG. 3 is a sectional view taken along the line X--X in FIG. 2.

10 is the needle stock body. A concave groove 11 is provided in the upper front part of the needle stock body 10 in the lateral direction. A pair of screw holes 12, 12 are bored in the groove 11. A plurality of needle storage grooves 13, 13, . . . are arranged in parallel in the vertical direction from the front lower part of the needle stock main body 10, that is, from the lower wall surface of the concave groove 11 to the bottom surface of the needle stock main body 10. The spacing between the parallel needle storage grooves 13, 13, ... depends on the position where the pair of needles N and N are inserted, so that the spacing between the needles N and N is 1/8, 3/16, 1/4, 5/ 16, 3/8
If the needle spacing is set to inches, etc., it is convenient because the needle spacing can be immediately adjusted to a desired value without replacing the needle stock main body 10.

Reference numeral 14 denotes a shaft screw for screwing the needle stock main body 10 onto a needle stock mounting portion (not shown) of a sewing machine.

20, 20 are a pair of needle presser plates. A fitting protrusion 21 that fits into the groove 11 is protruded from the upper part of the back surface of the needle presser plate 20 . This needle holder plate 20 has a screw hole 22 at a portion of the fitting protrusion 21 corresponding to the screw hole 12 provided in the needle stock main body 10.
has been drilled. Note that a screw 23 is inserted into the screw hole 22.
A step 24 may be formed to accommodate the head of the holder. A lower portion of the back surface of the needle presser plate 20 functions as a needle presser surface 25.

In this way, the fitting protrusions 21, 21 of the pair of needle holding plates 20, 20 are fitted into the groove 11 of the needle stock main body 10, and the needle stock main body 10 and the needle holding plates 20, 2 are fitted together.
Screw 2 into screw holes 12, 12, 22, 22 with 0
3 and 23, the pair of needles N and N fitted into the needle storage grooves 13 and 13 are pressed by the needle presser surface 25, and the needles can be fixed.

As described above, the needle clamp for multiple needles of a sewing machine according to this invention does not directly clamp the needles with screws as in the conventional example, but instead uses the needle stock main body 10 and the needle presser plates 20, 2.
Since the needle N is fixed by screwing together the needle N with the screw 23, a large screw 23 can be used, and the screw tightening operation is easy.

Next, a method of replacing the needle N in the multi-needle needle stopper of this sewing machine will be explained.

First, loosen the screw 23 on the side where the needle is to be replaced and remove the needle N. Next, the needle N is inserted along the desired needle storage groove 13, the base end of the needle N is brought into contact with the lower end surface 26 of the fitting protrusion 21, and then the screw 23 is tightened.

Further, in order to adjust the distance between the needles N and N to a desired inch, it is sufficient to simply move one or both of the needles to the desired needle storage groove 13 by the above operation.

[Effect of idea]

Since this device is constructed and operates as explained above, by screwing the needle stock body and needle holder plate together, a large screw can be used to secure the needle, and the screw tightening process can be completed easily. easy to do,
It becomes easier to replace the needle.

In addition, when you need needles with the required spacing, you can simply change the needle storage groove into which the needles are inserted, and there is no need to remove the needle stock body from the needle stock mounting section of the sewing machine, so you can easily change the needles to the desired spacing. Can be done.

[Brief explanation of the drawing]

Fig. 1 is a front view of a needle stopper for multiple needles of a sewing machine showing one embodiment of this invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along the line X-X of Fig. 2, and Fig. 4 FIG. 2 is a perspective view showing a conventional example. 10... Needle stock body, 11... Concave groove, 12, 22
...screw hole, 13 ... needle storage groove, 20 ... needle presser plate, 21 ... fitting projection, 23 ... screw.

Claims (1)

[Scope of utility model registration request] A needle stock in which grooves with a pair of screw holes on the left and right sides are provided horizontally in the upper front part, and at least two vertical needle storage grooves are arranged in parallel in the lower front part on the left and right sides. It has a main body and a pair of left and right needle press plates each having a fitting protrusion protruding from the upper part of the back surface that fits into the groove and has one screw hole in a portion corresponding to the screw hole. and the needle stock main body and the pair of needle holder plates are engaged with each other by arranging the needle holder plates in a horizontal direction and fitting the fitting projections of each needle holder plate into the grooves of the needle stock main body. The pair of left and right needles are fixed in the needle storage grooves by inserting screws into each screw hole of the needle stock body and the screw hole of each needle holding plate, respectively. Needle stop for multiple needles on a sewing machine.