KR101403225B1 - Multifunction sewing machine designed to sew fabrics using different layouts and types of stitches - Google Patents

Abstract

The present invention relates to a sewing machine and, in particular, by means of various types of stitches, thanks to the layout of the means (5, 6, 7, 27) which are adjusted and operated in accordance with the requirements of the sewing machine operator, To a sewing machine having an industrial base part (1) designed to be sewn. In particular, the means (5, 6, 7, 27) may be arranged at a preferred distance from one another in order to properly position the stitches in the target area.

Description

TECHNICAL FIELD [0001] The present invention relates to a multifunction sewing machine for sewing fabrics using various types of stitches and layouts. [0002] MULTIFUNCTION SEWING MACHINE DESIGNED TO SEW FABRICS USING DIFFERENT LAYOUTS AND TYPES OF STITCHES [

Other features and details of the invention may be more clearly understood from the following description, given by way of non-limitative example, as well as the appended drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a view of a sewing machine including a base for purposes of the present invention.

Figure 2 shows a protective casing for a space formed between the base and the transmission system, comprising a transmission system moved and traversed away from the body of the sewing machine, the sewing machine comprising a base.

Fig. 3 is a view of a sewing machine having a base portion, including a transmission system that is moved and traversed away from the body of the sewing machine, but without the casing of Fig. 2;

Fig. 4 is a top view of the sewing machine of Fig. 2 including a transmission system. Fig.

Figure 5 is a view from opposite sides without a cover casing, including a base portion and a deployed transmission system;

6 is a view of a transmission system;

Figs. 7 and 8 are side views of a base portion including two reciprocating crochet having roller drive means and claw drive means, respectively. Fig.

Fig. 9 is a side view of a base including a rotary motion crochet; Fig.

10 is a view of a base portion including a reciprocating crochet and a rotary motion crochet;

Figure 11 is an enlarged view of the needle-plate and a side view of the base of Figure 2;

Description of the Related Art

1: Base 3: Electric system

12: pusher 20: needle plate

29: Casing

The present invention relates to a sewing machine and, more particularly, to an industrial sewing machine for adjusting the layout of stitches and mechanically sewing two pieces of fabric using various types of stitches.

Thus, a sewing machine having a specific shape can sew two pieces of fabric by at least two different types of stitches located at the target distance, thanks to the rapid setting of the device.

As is known, a sewing machine mechanically sews two or more pieces of fabric to each other at an industrial level according to various structural techniques based on various procedures designed to perform by a sewing machine.

For example, a unit comprising a needle or a plurality of needles for sewing garments such as jeans, general casual pants, work clothes, shirts or other garments has been known.

The most common sewing machines include a top head on which the needles are located, a system for supplying the fabric pieces to be sewn, a base disposed under the top head, and means for cooperating with the needles to form the stitches.

The rotational movement in the upper head driven by the shaft connected to the drive motor is converted into a reciprocating motion by the cam and then transmitted to the needle support. Also in the adjacent positions of the needles, the upper head is formed with a presser foot which functions to press down the fabric piece to be sewn downwardly toward the lower base.

Generally, the fabric supply system includes specific means for moving the fabric to be sewn in one direction.

The base located below the upper head includes at least one crochet used with the needle to form a stitch.

The described components can be rotated and traversed in a synchronized manner.

When manufacturing and designing a sewing machine, this type of stitch formed plays an important role.

Different types of stitches require various parts, require parts for forming various movements, and require the use of various sewing machines for various stitches.

For example, in a known technique for forming note stitches, the sewing machine includes a crotch that rotates constantly, and the lateral movement of the needle corresponding to the two 360 ° rotations by the crochet is tuned Is required.

On the other hand, in order to form the chain stitch, the sewing machine has a shape different from that for the note stitch, and has a reciprocating rotational motion and / or a lateral movement, Chet.

In order to manufacture a sewing machine having a structure different from the structure designed to additionally sew with a knot stitch, the manufacturer must provide a reciprocating movement function with a crotch.

The difference between these two types of sewing machines is that the sewing machine for sewing with a knit stitch has a spool including a thread inserted into the crotch while a sewing machine for sewing with a chain stitch is located outside the sewing machine It requires a variety of mechanisms.

The important and substantial difference between the two different types of sewing machines lies in the formation and the variety of forms between the note stitches and the chain stitches.

Thus, according to known techniques, two different sewing machines must correspond to two different types of stitches.

As such, these sewing machines carry significant cost to the textile industry company or consumer to provide increased flexibility and superior service in a rapidly changing manner.

It is therefore an object of the present invention to provide a single sewing machine capable of sewing with knotted stitches and / or double stitches each, or a combination thereof, to solve all the problems mentioned above and other problems To overcome.

According to the present invention, these objects and advantages are realized by a base for a sewing machine having a head comprising at least one sewing needle and at least one pusher, the base comprising at least one power transmission system comprising at least one second crochet, Wherein the drive system rotates the second crochet through a drive means coupled to a component contained within the base portion and the drive system is coupled to the drive and adjustment means So as to be movable relative to the base.

A sewing machine including a base designed in this way can sew two different types of stitches using a single structure in which various elements can be operated depending on the type of stitches required.

Thus, significant cost savings are achieved by not having to purchase two different devices in accordance with the present invention. In addition, an appropriate layout of the sewing stitches can be determined by a quick and easy setting system thanks to the sewing machine in question, and the distance between the needles can be adjusted according to the requirements of the sewing machine operator by varying the required caliber.

Reference numeral 1 in the accompanying drawings denotes a base of a sewing machine provided with at least one head having a suitable upper sewing part and a pressure foot 12, for example, a thread-pulling means. ).

In particular, due to the base 1, the sewing machine can perform two different types of stitches without replacing the component parts of the sewing machine. In fact, it is possible to combine and / or alternatively form note stitches and chain stitches.

To this end, the base unit 1 includes two crochet units 7 and 27 which reciprocate to form a chain stitch, a first corset unit 5 which continuously rotates to form a note stitch, 2 corchet (6).

The first corchet 5 may be visible in the right hand side of Figs. 5 and 9 and is connected to a known type of means 22 which is allowed to move by means of a pin 9.

7, the corchet 7, 27 is coupled to a pin 8 configured to reciprocate by means of a support 23 and the corchet 7, 27 is alternately arranged from a known type of means . Consequently, the support portion 23 and the corsets 7, 27 can be traversed in the longitudinal direction owing to the spring system 24 shown in Fig.

9 is combined with chain stitches formed by one or more corsets 7, 27 due to the continuously rotating second corset 6 located on the left side of Fig. 9, or in combination with chain stitches formed by one or more corsets 7, And a knot stitch is formed in combination with another knot stitch.

The second corchet 6 can traverse in a direction perpendicular to the sewing direction and is connected to the base 1 by two guides 14 and is connected to the gear transmission system 3 Lt; / RTI > receives movement from one pin (10).

Particularly, as shown in FIG. 4, the first pin 10 is connected to the first gear 11 coupled to the second gear 13. The second gear 13 is coupled to a connection shaft 15 of a groove structure configured to rotate by a grooved coupling 16.

The coupling shaft 15 of the concave structure and the coupling 16 of the concave structure are coupled to each other in a telescoping manner to ensure continuous motion independent of the position of the coupling shaft 15 .

The second rotary corset 6 can be operated wholly in whatever location it is due to the predetermined shape of the transmission system 3 and the transmission system 3 is able to be operated at a distance between the base 1 and the transmission system 3 And a compartment 31 adapted to receive the circular element 17, suitably connected to the base portion 1 of the sewing machine.

A hexagonal wrench can be inserted into a profiled hole 18 located on a circular element 17 which is easily accessible by a sewing machine operator as shown in Fig. The transmission system 3 is moved in the longitudinal direction to the target dimension by a hexagonal wrench or other means. Thus, in cooperation with the crochet (6, 7, 27) located at the bottom of the needle plate 20, one of the four openings 21, suitable for producing fabrics and positioned on the needle plate 20, The movable rotatable crochet 6 is also moved.

The needle plate 20 is arranged so that the distance between the openings 21 different from those shown in Figs. 1, 2 and 3 and the number of the openings 21, irrespective of the type of the crochet 2 to be operated, It can be easily replaced with a similar plate having the same shape. Therefore, since the positions of the crochet 5, 6, 7, 27 can be easily set, various types of stitches having different distances from each other can be formed.

In addition, the circular element 17 can determine two or more positions of the transmission system 3. In the case of the present invention, the circular element 17 can determine four different positions of the system 3.

By virtue of this base 1, note stitches or chain stitches can be obtained in the vicinity of the openings 25 by removing the first rotating crochet 5, while other stitches or chain stitches can be obtained near one of the openings 21 Other note stitches or chain stitches can be obtained. In this method, the knit stitch and one or more chain stitches at the opposite positions compared to the conventional one, the knit stitch and the other one having at least one chain stitch, the one having at least one knot stitch, the one having at least one chain stitch There are four different stitch types / layouts that can be implemented. The drive mechanism for the transmission system 3 requires a pneumatic piston 30 controlled by an operator using a push-button or other means. When the piston (30) is actuated, the transmission system (3) is moved away from the base (1) so that the operator can change one or more spools of the crochet (5, 6) as the operator desires. This pneumatic piston is opposed by an elastic or spring means 28 which again moves the transmission system 3 towards the base 1 to return to the working configuration when required by the operator.

This operation is performed in accordance with the needle bar located only at the stationary device and the top dead center, thereby providing the operator with overall stability.

In addition, the base 1 comprises means 19 for assisting forward movement of the fabric for sewing. As shown in FIG. 1, the base portion may be substantially composed of the claw system and the feed roller shown in FIG. In addition, the base 1 has an irregular polygonal cross-section which is shaped like a tubular shape or nearly similar to a circular profile to facilitate the sewing of garments having a shape similar to pants or any other.

The casing 26 is formed so that the spool can be changed in the first rotating crochet 5 and the second rotating crochet 6.

In addition, the transmission system 3 can be coupled to the base unit 1 such that the casing 29 covers the opening formed between the base unit 1 and the system 3 when the system 3 is moved away from the base unit 1. [ Is covered by the casing (29), thereby ensuring maximum stability for the operator.

Those skilled in the art can make modifications and alterations within the scope of the present invention.

Claims (15)

One or more first crochet (5,7,27) and second crochet (6) moved by one or more pushbars (12), one or more needles for sewing, drive components (9,22, (1) comprising a head (2) comprising at least one transmission system (3) The transmission system 3 is designed to provide rotational movement to the second crochet 6 via drive mechanisms 10, 11, 13, 15 connected to the components 16 contained in the base 1, And at least one first crochet (5, 7, 27) forms a chain stitch or a note stitch, and the second crochet (6) is arranged to move with respect to the base part (1) One or more first crochet (5, 7, 27) and second crochet (6) are operated in combination or selectively, and both the knot stitch and the chain stitch are combined or selectively sewn (1) for a sewing machine. The transmission system according to claim 1, characterized in that the transmission system (3) is arranged in such a manner that the stitches sewn to the second crochet (6) and the stitches sewn to the at least one first crochet (5, 7, 27) A base unit (1) for a sewing machine which is capable of longitudinal translation relative to said base (1) by means of adjustment means. 3. A system according to claim 2, characterized in that the transmission system (3) comprises a first connection shaft (15) which is actuated by the part (16) contained in the base part (1) (1) connected to a second drive shaft (10) to which two crochet (6) are connected by at least one coupling means (11, 13). 4. A device according to claim 3, characterized in that the transverse and regulating means comprise a circular element (17), said circular element (17) comprising a cavity (18) for inserting means for rotating the circular element, ) Is designed to move the transmission system (3) to a target position. 5. A sewing machine base (1) according to claim 4, wherein the first crochet is coupled to a rotary pin element (9) to which power is transmitted by the drive means (22). 6. A sewing machine base (1) according to claim 5, wherein the first crochet is coupled to a support (23) connected to a shaft (8) powered by drive means designed to reciprocate said first crochet. 7. A base for a sewing machine (1) as claimed in claim 6, wherein the support (23) comprises two or more crochet located at a target distance. A drive system (3) as claimed in claim 7, characterized in that the drive system (3) is arranged to approach the base part (1) or to remove the drive system (3) from the base part And means (14, 28, 30) designed to drive the machine (1). 9. A base unit (1) for a sewing machine according to claim 8, wherein the means (14,28, 30) designed to move the drive system (3) is a piston (30), an elastic means (28) and a guide pin (14). 10. A base for a sewing machine (1) according to claim 9, comprising a detachable needle plate (20) having openings (21, 25) for passing a thread between the needle and one or more crochet. A base unit (1) for a sewing machine as claimed in claim 10, comprising a first casing (29) designed to cover an opening formed between the base part (1) and the transmission system (3) and coupled to the base part (1). 12. A base (1) for a sewing machine according to claim 11, comprising a second cover casing (26). 13. A base (1) for a sewing machine according to claim 12, comprising means (19) for supplying a fabric to be sewn towards the front. 14. A base unit (1) for a sewing machine as claimed in claim 13, characterized in that the feeding means (19) is a roller or claw means. A sewing machine comprising a base (1) according to any one of the preceding claims.

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