KR20070103301A - Multifunction sewing machine designed to sew fabrics using different layouts and types of stitches - Google Patents

Abstract

A multi-functional sewing machine is provided to sew at least two different types of stitches on a fabric, by improving the structure of the sewing machine of which various elements are operated according to the types of stitches. A base part(1) for a sewing machine has a head(2) including at lease one needle and at least one pressing element(12). The base part includes at least one first crochet moved by driving elements and at least one electromotion system(3) having a second crochet. The electromotion system gives rotary movement to the second crochet through a driving mechanism connected to an element included in the base part. The driving system is moved with respect to the base part by crossing and controlling units(17,18).

Description

Multifunctional sewing machine for sewing fabrics using various stitch types and layouts {MULTIFUNCTION SEWING MACHINE DESIGNED TO SEW FABRICS USING DIFFERENT LAYOUTS AND TYPES OF STITCHES}

Other features and details of the present invention can be more clearly understood from the following description given in the accompanying drawings as well as non-limiting examples.

1 is a view of a sewing machine including a base which is an object of the present invention.

2 shows a protective casing for the space formed between the base and the transmission system, including a transmission system that is moved and traversed apart from the body of the sewing machine, the view of the sewing machine including the base;

3 is an illustration of a sewing machine with a base, wherein the casing of FIG. 2 does not exist but is moved and traversed apart from the body of the sewing machine;

4 is a top view of the sewing machine of FIG. 2 including an electric system;

5 is a view from the opposite side, without the cover casing, including the base and the deployed electric system.

6 is a view of a transmission system.

7 and 8 are side views of a base comprising two reciprocating claws each having roller drive means and claw drive means;

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

10 is a view of a base including a reciprocating crochet and a rotating movement crochet;

11 is an enlarged view of the needle-plate and a side view of the base of FIG.

<Description of the symbols for the main parts of the drawings>

1: base 3: electric system

12: presser 20: needle plate

29: casing

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

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

As is known, sewing machines mechanically sew two or more pieces of fabric together at an industrial level, in accordance with various structural techniques based on various procedures designed to be performed by the sewing machine.

Units comprising one needle or a plurality of needles for sewing garments, for example jeans, general casual pants, work clothes, shirts or other garments, are known.

The most common sewing machines include an upper head on which the needle is located, a system for feeding a piece of fabric to be sewn, a base disposed under the upper head, and means for cooperating with the needle to form a stitch.

Rotational movement in the upper head driven by the shaft connected to the drive motor is converted to reciprocating movement by the cam and then transmitted to the needle support. In addition, at an adjacent position of the needle, the upper head is formed with a presser foot that functions to press and hold the piece of fabric to be sewn downwards toward the lower base.

In general, 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 one or more crochets used with the needle to form a stitch.

The above-described parts can perform rotational and transverse movements in a synchronized manner.

When manufacturing and designing sewing machines, this type of stitch formed is important.

Different types of stitches require different parts, require different parts to form various movements, and use of various sewing machines for different stitches.

For example, in the known technique for forming a note stitch, the sewing machine includes a crochet that rotates constantly, and the crochet is synchronized with the lateral movement of the needles corresponding to two 360 ° rotations. Required.

On the other hand, in order to form a chain stitch, the sewing machine has a shape different from the shape for the note stitch, the crochet in which the reciprocating rotational movement and / or the lateral movement and the lateral movement of the needle are coordinated in response to the crocheting movement. Include 쳇.

In addition, in order to manufacture a sewing machine having a structure different from that designed to sew with a note stitch, the manufacturer must provide a reciprocating function with the crochet.

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

An important and practical difference between two different types of sewing machines lies in the variety of forms and shapes between note stitches and chain stitches.

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

These sewing machines thus impose significant costs on companies or consumers in the textile industry to provide increased flexibility and superior service in a rapidly changing manner.

It is therefore an object of the present invention to overcome all the above and other problems mentioned above by providing a single sewing machine which can sew each with a stitch stitch and / or a double chain stitch, or a combination thereof.

According to the invention, these objects and advantages are realized by a sewing machine base having a head comprising one or more sewing needles and one or more presses, the base comprising one or more transmission systems comprising one or more second crochets; One or more first claws powered by a drive component, the drive system rotating the second claws via drive means connected to the components contained within the base, the drive system being coupled to the drive and regulating means. By means of being movable relative to the base.

A sewing machine comprising 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 stitch required.

Thus, significant costs are saved by not having to purchase two different devices in accordance with the present invention. In addition, thanks to the sewing machine, the proper layout of the sewing stitch can be determined by a quick and easy setting system, 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 shows the base of a sewing machine equipped with one or more heads having a pressure foot 12 and a suitable upper sewing component, for example, thread-pulling means. ).

In particular, the base 1 allows the sewing machine to perform two different types of stitches without replacing the component elements of the sewing machine. In fact, it is possible to form note stitches and chain stitches in combination and / or alternatively.

To this end, the base 1 includes two crochetes 7, 27, which reciprocate to form a chain stitch, and a first corset 5 and a first, which make continuous rotational movements to form a note stitch. 2 corsets (6).

The first corset 5 can be visible on 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 the pin 9.

As shown in FIG. 7, the corrugations 7, 27 are coupled to a pin 8 configured to reciprocate by the support 23, which correlates 7, 27 alternately from known types of means. Driven. As a result, the support 23 and the corsets 7 and 27 can cross in the longitudinal direction thanks to the spring system 24 shown in FIG. 9.

Second stitches 6 which are continuously rotated on the left side of FIG. 9 are combined with the chain stitches formed by one or more collars 7, 27 or sewn by the first collar 10 The note stitch is formed in combination with the other note stitches.

The second corset 6 may traverse in a direction perpendicular to the sewing direction and is connected to the base 1 by two guides 14 and coupled to a gear transmission system 3. Accepts movement from one pin 10.

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

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

The predetermined shape of the transmission system 3 allows the second rotary corrugation 6 to be operated globally at any position, the transmission system 3 being the distance between the base 1 and the transmission system 3. And a compartment 31 which is suitably connected to the base 1 of the sewing machine and configured to receive the circular element 17.

A hexagon wrench can be inserted into a profiled hole 18 located on a circular element 17 that is easily accessible by the sewing machine operator as shown in FIG. 3. The transmission system 3 is moved longitudinally to the target dimension by a hexagonal wrench or other means. Therefore, one of the four openings 21 located on the needle plate 20 and suitable for producing the fabric in cooperation with the crochet 6, 7, 27 located at the bottom of the needle plate 20, The rotating crochet 6, which can be moved, is also moved.

The needle plate 20 may vary the distance between the openings 21 and the number of the openings 21 different from those shown in FIGS. 1, 2 and 3, regardless of the type of crochet 2 to be operated. It can be easily replaced with a similar plate having a. Therefore, since the positions of the crochetes 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.

Thanks to this base 1, note stitches or chain stitches can be obtained in the vicinity of the opening 25 by removing the first rotary crochet 5 while others in the vicinity of the opening of one of the openings 21 are obtained. You can get different note stitches or chain stitches. In this method having a note stitch and at least one chain stitch at a position opposite to the prior art, other than having a note stitch and at least one chain stitch, having at least one note stitch and having at least one chain stitch Four different stitch types / layouts can be implemented, meaning. The drive mechanism for the electric system 3 requires a pneumatic piston 30 which is controlled by the operator using push-buttons 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 crochetes 5 and 6 as desired by the operator. This pneumatic piston is opposed by elastic or spring means 28 which move the transmission system 3 again towards the base 1 in order to return to the working configuration when required by the operator.

This operation is only performed with the needle bar positioned at the stationary device and the top dead center, thus providing the operator with overall stability.

The base 1 additionally comprises means 19 for assisting the forward conveyance of the fabric for sewing. As shown in FIG. 1, the base may in fact consist of a claw system and a feed roller as shown in FIG. 7. In addition, the base 1 has an irregular polygonal cross section, almost like a circular profile, in order to facilitate the sewing of garments which are formed in a tubular form or shaped like pants or anything else.

The casing 26 is formed such that the spool is variable in the first rotary crochet 5 and the second rotary crochet 6.

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

Those skilled in the art can make any variations and modifications within the protection scope of the present invention.

Claims (14)

In the sewing machine base (1) provided with a head (2) comprising at least one needle for sewing and at least one presser (12), the base comprises at least one transmission system comprising a second crochet (6). 3) and one or more first claws 5, 7, 27, which are moved by the drive parts 9, 22, 8, 23, the transmission system 3 being a part contained in the base 1; Configured to provide rotational movement to the second crochet 6 via drive mechanisms 10, 11, 13, 15 connected to 16, the drive system 3 traversing and regulating means 14, 17. , 18) the sewing machine base part (1), which is moved relative to the base part (1). 2. The transmission system (3) according to claim 1, wherein the transmission system (3) comprises a first connecting shaft (15) actuated by the component (16) included in the base (1), the first connecting shaft (15) being one The base (1) for sewing machine, characterized in that the coupling means (11, 13) is connected to the second drive shaft (10) to which the second crochet (6) is connected. 3. The element (17) according to claim 1, wherein the adjusting means (17, 18) is an element (17) comprising a cavity (18) for inserting means for rotating the element (17). A sewing machine base (1), characterized in that it is formed to move the electric system (3) to a target position. The sewing machine base (1) according to any one of the preceding claims, characterized in that at least the first crochet (5) is coupled to a rotating pin element (9) powered by a drive means (22). 4. The drive according to any one of the preceding claims, wherein at least the first crochet (7, 27) is at least driven by drive means designed to move at least the first crochet (7, 27) in reciprocating motion. Base for sewing machine (1), characterized in that coupled to the support (23) connected to the shaft (8) to be powered. 6. The sewing machine base (1) according to claim 5, characterized in that the support (23) comprises two or more crochets (2, 27) positioned at a target distance. The method according to claim 1, wherein the drive system 3 is approached to the base 1 and / or the drive system 3 is managed to manage the second crochet 6. Base for sewing machine, characterized in that it comprises means (14, 28, 30) for driving the drive system (3) to be removed from the base (1). The method according to any one of the preceding claims, characterized in that the means (14, 28, 30) designed to move the drive system (3) are a piston (30), an elastic means (28) and a guide pin (14). Base for sewing machine (1). The method according to any one of the preceding claims, comprising a removable needle plate (20) having openings (21, 25) for passing the thread between the needle and one or more crochets (5, 6, 7, 27). Characterized by the sewing machine base (1). Sewing machine according to any one of the preceding claims, comprising a first casing (29) covering the opening formed between the base (1) and the transmission system (3) and coupled to the base (1). Base (1). Base (1) according to any one of the preceding claims, characterized in that it comprises at least a second cover casing (26). Base (1) according to any one of the preceding claims, characterized in that it comprises means (19) for feeding the fabric to be sewn forward. Base (1) according to any one of the preceding claims, characterized in that the supply means (19) are roller and / or claw means. Sewing machine comprising a base (1) according to any one of the preceding claims.

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