A simple presser foot device for sewing cotton and down

Abstract

The utility model relates to a simple presser foot device for sewing cotton and down, and the presser foot device can be detachably installed on a presser foot body, comprising: a sleeve body made of flexible fabric, the sleeve body is provided with an installation position formed by folding the flexible fabric; an elastic band with two ends fixed on the two ends of the sleeve body, the length of the elastic band is adapted to the circumference of the presser foot body; wherein the presser foot body is sleeved in the installation position, and the sleeve body is fixed on the presser foot body by the elastic band. The presser foot device can improve the sewing efficiency of workers on cotton and down, and the presser foot device can be made by workers to ensure that the cost does not increase.

Description

Technical Field

[0001] This utility model relates to the field of garment sewing technology, and in particular to a simple presser foot device for sewing cotton and down. Background Technology

[0002] In traditional sewing techniques, sewing cotton and down fabrics requires manually stretching the fabric or using a special presser foot. Manually stretching the fabric is difficult and can easily lead to inconsistent stitch density, while using a special presser foot is more expensive.

[0003] Currently, there is no device that can quickly and efficiently sew both cotton and down fabrics without increasing costs. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a simple presser foot device for sewing cotton and down, which can improve the sewing efficiency of workers on both cotton and down fabrics, while also allowing workers to make the presser foot device themselves, ensuring that costs are not increased.

[0005] This application is achieved through the following technical solution: In some embodiments, a simple presser foot device for sewing cotton and down is provided. The presser foot device can be detachably installed on the presser foot body. The presser foot device includes: a sleeve made of flexible fabric, the sleeve having a mounting position formed by folding the flexible fabric; and an elastic band with both ends fixed to the two ends of the sleeve, the length of the elastic band being adapted to the circumference of the presser foot body; wherein the presser foot body is sleeved in the mounting position, and the sleeve is fixed to the presser foot body by the elastic band.

[0006] In the technical solution of this application embodiment, the use of flexible fabric for the sleeve body makes the presser foot device softer, allowing it to better fit the presser foot body and adapt to presser foot bodies of different shapes. Furthermore, since the presser foot body is made of metal, the friction between it and cotton or down during sewing is relatively low. Using a sleeve made of flexible fabric, placed over the presser foot body, increases the friction between the presser foot body and the cotton or down fabric. The flexible fabric is directly folded to form the mounting position, making the presser foot device simple to manufacture; workers can make it themselves, making it convenient and inexpensive. The folded mounting position provides space for the presser foot body, allowing it to be inserted into the sleeve body. The elastic band connects to both ends of the sleeve body, forming a covering loop. When the presser foot body is inserted into the mounting position, the elastic band covers the outer periphery of the presser foot body. The elastic band ensures the sleeve body tightly wraps around the presser foot body, preventing slippage or detachment during use; the elastic band also allows for a certain degree of elasticity, accommodating presser foot bodies of different circumferences. The length of the elastic band is adapted to the circumference of the presser foot body. The length of the elastic band is slightly larger than the circumference of the presser foot body to ensure that the elastic band is neither too tight nor too loose, providing a balanced fixing force for the presser foot device. The presser foot body and the presser foot device are detachably connected, which facilitates installation and disassembly and allows for easy replacement by the user. The use of the elastic band for fixing is a reliable method to ensure that the presser foot body remains stable during high-speed operation.

[0007] In some embodiments, the flexible fabric is rectangular and folded in half along its long side; the two folded flexible fabric pieces are fixed to each other by two spaced-apart fixed connection positions, the distance between the two fixed connection positions being adapted to the width of the pressing body, and the two folded flexible fabric pieces form an installation position with an opening on one side between the two fixed connection positions.

[0008] In the technical solution of this application embodiment, the rectangle facilitates cutting by workers during self-production. Folding the rectangular flexible fabric in half and fixing it at two oppositely arranged fixed connection points forms an installation position. The fixed connection points restrict the position of the presser foot body within the installation position, ensuring that the size of the installation position matches the size of the presser foot device. The fixed connection points prevent the sleeve from unfolding, and the two spaced-out positions form a clear boundary for the installation position, facilitating the alignment and insertion of the presser foot body. The distance between the two fixed connection points is designed to facilitate the insertion of the presser foot body into the installation position. The appropriate spacing minimizes the gap between the sleeve and the presser foot body, preventing shaking or displacement and improving operational accuracy. The open design allows the presser foot body to easily slide into the installation position, and the open side usually faces the presser foot body.

[0009] In some embodiments, the mounting position is located in the middle of the long side of the flexible fabric, and the two ends of the elastic band are respectively fixed to the two sides of the mounting position.

[0010] In the technical solution of this application embodiment, the mounting position is set in the middle to ensure even force distribution and prevent the pressure plate body from tilting during operation after being inserted into the mounting position. Elastic bands are symmetrically fixed on both sides of the mounting position to further prevent tilting and also provide uniform contraction force, enhancing the sleeve's wrapping effect on the pressure plate body.

[0011] In some embodiments, the elastic band is sandwiched between two folded flexible fabrics and secured to the flexible fabrics by sewing.

[0012] In the technical solution of this application embodiment, the elastic band is sandwiched between two folded flexible fabrics, which can hide the elastic band, making the appearance simple and preventing the elastic band from being directly exposed and worn or caught on other objects. It also protects the elastic band from contamination and extends its service life. The band is fixed to the flexible fabric by sewing, making it easy for workers to make their own presser foot devices, and the sewn connection is more secure.

[0013] In some embodiments, the stitching is disposed around the end of the elastic band to fix the elastic band to the flexible fabric, and the end of the elastic band is covered within the space formed by the stitching and the flexible fabric.

[0014] In the technical solution of this application embodiment, it is possible to ensure that the end of the elastic band is completely fixed, preventing the end from coming off or loosening.

[0015] In some embodiments, the long side of the flexible fabric is set to 4.0 cm, and the wide side of the flexible fabric is set to 5.0 cm.

[0016] The technical solution of this application embodiment can ensure that the sleeve is compatible with common compression sleeves and save materials.

[0017] In some embodiments, the long side of the flexible fabric is folded along the long side direction to form a smooth edge with a width of 1.2 cm.

[0018] In the technical solution of this application embodiment, the edge finishing prevents the fabric edges from pilling, improves the durability and aesthetics of the cover, and the edge finishing can also prevent tearing.

[0019] In some embodiments, the elastic band width is 1 cm.

[0020] In the technical solution of this application embodiment, a 1cm width provides sufficient elasticity and fixing force, while not taking up too much space, and is adapted to the size of the folded flexible fabric.

[0021] In some embodiments, the elastic band is a tension band.

[0022] In the technical solutions of this application embodiment, elastic bands are common, low in cost, elastic, easy to stretch and recover, and can provide reliable fixing force.

[0023] In some embodiments, the flexible fabric is cotton.

[0024] In the technical solution of this application embodiment, cotton cloth is suitable for prolonged contact with skin or sensitive workpieces; cotton cloth is readily available and inexpensive.

[0025] The beneficial effects of this utility model are reflected in: The cover is made of flexible fabric, which can be cotton. The cotton cover will directly contact the cotton or down fabric. Because the friction between the fabrics is much greater than the friction between the presser foot metal and the fabric, it can generate a certain resistance to the forward movement of the fabric. This perfectly simulates the working mechanism of a dedicated down presser foot, which has a fabric-blocking function at the rear to increase the friction between the presser foot and the down. This resistance counteracts the forward feeding force of the sewing machine's feed dogs, resulting in moderate fabric tension and effectively preventing slippage, wrinkling, and piling of down or cotton fabrics during sewing.

[0026] Using the presser foot device proposed in this solution, workers no longer need to laboriously and unevenly stretch the fabric manually. With normal operation, they can achieve a uniform and even stitch length, forming the garment in one go, reducing rework and directly improving sewing efficiency and quality. The elastic band and mounting position design allow one model of presser foot to fit various sizes of standard presser foot bodies, offering excellent versatility. The presser foot device consists of only a piece of flexible fabric and a section of elastic band for fixed connection. The materials are simple, inexpensive, and readily available, and workers can easily obtain and manufacture them themselves, making the procurement cost virtually zero.

[0027] In summary, the presser foot device proposed in this solution solves the technical problems of high operational difficulty and inconsistent stitch length when sewing down and cotton fabrics, improving workers' sewing efficiency and quality, and reducing rework rates. It also addresses the technical issues of the high cost and limited availability of dedicated presser foot devices, as the presser foot device is inexpensive and made from readily available materials, allowing workers to manufacture it themselves based on available materials. Attached Figure Description

[0028] Figure 1 A schematic diagram of the presser foot device provided by this utility model; Figure 2 This is a schematic diagram of the structure of the sleeve provided by this utility model; Figure 3 A schematic diagram showing the interaction between the presser foot device and the presser foot body provided by this utility model; Figure 4 A schematic diagram of the structure of the flexible fabric provided by this utility model; Figure 5 This is a schematic diagram illustrating the interaction between the presser foot device provided by this utility model and a sewing machine.

[0029] Figure label: 100 - Presser foot device; 110 - Sleeve body; 111 - Mounting position; 112 - Fixed connection position; 113 - Smooth edge; 120 - Elastic band; L - Long side of flexible fabric; H - Wide side of flexible fabric; P - Width of smooth edge; 200 - Presser foot body; 300 - Sewing machine. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: See Figure 1 The presser foot device 100 consists of a sleeve 110 and elastic bands connected to both ends of the sleeve 110. The sleeve 110 increases the friction between the presser foot body 200 and the down and cotton fabric. Understandably, the sleeve 110 is designed to increase the friction between the presser foot body 200 and the down and cotton fabric; therefore, the sleeve 110 is made of a flexible fabric. Using a flexible fabric increases friction compared to a smooth metal presser foot body 200, but compared to other friction-increasing fasteners or rougher fabrics, the friction is not excessively increased. This achieves the effect of maintaining friction between the fabric and the presser foot device 100 without excessive friction that would hinder fabric movement. Cotton is the preferred flexible fabric; other flexible materials such as polyester, nylon, linen, or silk can also be used for the sleeve 110, but cotton is a common choice.

[0032] Furthermore, the elastic band serves to secure the sleeve 110, or the entire presser foot device 100, to the presser foot body 200. Besides using an elastic band, fasteners or Velcro can also be used to secure the presser foot device 100 to the presser foot body 200. The elastic band can be made of spandex, rubber, or latex; elastic bands are a standard feature. To ensure a secure connection between the elastic band and the presser foot body 200, the length of the elastic band should be slightly greater than the circumference of the presser foot body 200. It is understandable that the elastic band can also be designed to be adjustable, allowing for flexible length settings and making manufacturing more convenient.

[0033] Furthermore, the sleeve 110 is fitted over the pressure foot body 200. To facilitate the connection between the sleeve 110 and the pressure foot body 200, a mounting position 111 is provided on the sleeve 110. The end of the pressure foot body 200 is inserted into the mounting position 111 for further installation with the sleeve 110. The mounting position 111 is made of folded flexible fabric, saving fabric and eliminating the need for additional components, resulting in a simple structure. The mounting position 111 can be formed by sewing, gluing, or other methods.

[0034] Further, see Figure 2-3 The flexible fabric is specifically rectangular, making it easy to fold in half. Two folded pieces of flexible fabric are connected at the fixing connection point 112. The two symmetrical pieces of flexible fabric are secured between the two fixing connection points 112, forming an installation position 111. The fixing method for the fixing connection point 112 is preferably by sewing, but it can also be fixed by adhesive, heat sealing, or fasteners. This installation position 111 is simple to operate, uses only flexible fabric, and is very inexpensive. To make the fit between the pressure plate body 200 and the sleeve body 110 more secure, the distance between the two fixing connection points 112 is slightly larger than the width of the pressure plate body 200. Understandably, this solution can design the connection method of the fixing connection points 112 as an adjustable distance connection method, such as fixing with thumbtacks or magnetic components, so that the distance between the two fixing connection points 112 can be adjusted to accommodate pressure plate bodies 200 of different sizes.

[0035] Furthermore, the mounting position 111 is preferably located in the middle of the flexible fabric along its length, with the two ends of the elastic band connected to both sides of the mounting position 111 and arranged symmetrically. This arrangement is to prevent the entire presser foot device 100 from tilting under force during operation. The elastic band can be positioned close to both sides of the mounting position 111 or at the edge of the sleeve 110.

[0036] Furthermore, the elastic band can be directly attached to the surface of the flexible fabric, but the elastic band being exposed can easily interfere with the work. Therefore, in this case, it is preferable to place the elastic band between the two pieces of flexible fabric after folding.

[0037] Furthermore, the elastic band and the flexible fabric are connected by sewing. Sewing is convenient for workers and provides a more secure connection. To further solidify the connection between the elastic band and the flexible fabric, the end of the elastic band is inserted between the elastic band and the flexible fabric, and then a sewing machine 300 is used to sew around the end of the elastic band, so that the part of the elastic band inserted between the elastic band and the flexible fabric is completely fixedly connected.

[0038] Example 2: See Figure 4Here are the specific dimensions of the flexible fabric in this design. When cutting the flexible fabric, one side is 4cm and the other side is 5cm. The 4cm side is designated as the long side (L) of the flexible fabric, and the 5cm side is designated as the wide side (H). The width after folding becomes 2cm.

[0039] Furthermore, a smooth edge 113 is provided on the flexible fabric. The smooth edge 113 is folded along a line parallel to the length of the flexible fabric, and the width P of the smooth edge is 1.2cm. The width of the flexible fabric before folding is 4cm, and the width of each piece after folding is 2cm. Due to the 1.2cm smooth edge 113, the total width before folding is 1.6cm, and the width of each piece after folding is 0.8cm.

[0040] Furthermore, the elastic band is 1cm wide, the pressure plate body 200 is about 2cm wide, and the flexible fabric is 5cm wide, so that the elastic band can be sandwiched between the flexible fabrics.

[0041] See Figure 5 This is a schematic diagram showing the interaction between the presser foot body 200, the presser foot device 100, and the sewing machine 300. The presser foot device 100 is sleeved on the outside of the presser foot body 200. When the feed dog of the sewing machine 300 feeds the fabric forward, the presser foot device 100 on the presser foot body 200 can increase the friction, greatly improving the sewing efficiency of down and cotton fabrics.

[0042] In the description of the embodiments of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "center," "top," "bottom," "top," "bottom," "inner," "outer," "inner side," and "outer side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. "Inner side" refers to the interior or enclosed area or space. "Outer perimeter" refers to the area surrounding a specific component or specific area.

[0043] In the description of embodiments of this utility model, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0044] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] In the description of the embodiments of this utility model, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0046] In the description of the embodiments of this utility model, it should be understood that "-" and "~" represent a range of two values, and this range includes the endpoints. For example, "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0047] In the description of the embodiments of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple presser foot device for sewing cotton and down, the presser foot device being detachably mounted to the presser foot body, characterized in that, The presser foot device includes: The sleeve is made of flexible fabric, and the sleeve has mounting positions formed by folding the flexible fabric. An elastic band is fixed at both ends of the sleeve body, and the length of the elastic band is adapted to the circumference of the compression body. The pressure foot body is sleeved within the mounting position, and the sleeve is fixed to the pressure foot body by the elastic band.

2. The simple presser foot device for sewing cotton and down according to claim 1, characterized in that, The flexible fabric is rectangular and folded in half along its long side. The two folded flexible fabric pieces are fixed to each other by two spaced fixed connection points. The distance between the two fixed connection points is adapted to the width of the pressure plate body. The two folded flexible fabric pieces form an installation position with an opening on one side between the two fixed connection points.

3. The simple presser foot device for sewing cotton and down according to claim 2, characterized in that, The mounting position is located in the middle of the long side of the flexible fabric, and the two ends of the elastic band are respectively fixed on both sides of the mounting position.

4. The simple presser foot device for sewing cotton and down according to claim 3, characterized in that, The elastic band is sandwiched between the two folded pieces of flexible fabric and is fixed to the flexible fabric by sewing.

5. The simple presser foot device for sewing cotton and down according to claim 4, characterized in that, A stitch is provided around the end of the elastic band to fix the elastic band to the flexible fabric, and the end of the elastic band is covered within the space formed by the stitch and the flexible fabric.

6. The simple presser foot device for sewing cotton and down according to claim 5, characterized in that, The long side of the flexible fabric is set to 4.0cm, and the wide side of the flexible fabric is set to 5.0cm.

7. The simple presser foot device for sewing cotton and down according to claim 6, characterized in that, The long side of the flexible fabric is folded along the long side direction to form a smooth edge with a width of 1.2cm.

8. The simple presser foot device for sewing cotton and down according to claim 7, characterized in that, The elastic band has a width of 1 cm.

9. The simple presser foot device for sewing cotton and down according to any one of claims 1-8, characterized in that, The elastic band is a tension band.

10. The simple presser foot device for sewing cotton and down according to any one of claims 1-8, characterized in that, The flexible fabric is cotton.

Images