Presser foot structure of sewing machine
By designing a removable and connected sewing machine presser foot structure, the existing presser foot is easily worn and deformed, achieving the effect of saving materials and reducing production costs, and extending the use time.
Patent Information
- Application Number
- CN202421833456.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The presser feet of existing sewing machines are easily worn and deformed due to fragile materials and improper use, resulting in overall replacement, resulting in waste of materials and increased production costs.
A sewing machine presser foot structure including a limiting part and a pad plate is designed. The limiting part is a U-shaped structure, and the limiting part is detachably connected to the pad plate, and the level of the presser foot plate is adjusted through bolt adjustment to extend the use time.
By replacing only part of the presser foot structure, material is saved and production costs are reduced, while the pads are extended by adjusting bolts.
Smart Images
Figure CN222821828U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewing machines, in particular to a presser foot structure of a sewing machine. Background Art
[0002] The sewing machine presser foot is one of the commonly used accessories of the sewing machine. During frequent use, it is easy to wear and deform due to constant contact with the fabric and pressure. Some sewing machine presser feet are made of relatively fragile materials such as plastic. These materials are prone to deformation and damage under long-term pressure and friction. As a consumable, the sewing machine presser foot needs to be replaced regularly.
[0003] In addition, different fabrics and sewing projects may require different sizes and shapes of presser feet. If used improperly, such as choosing a presser foot that is not suitable for the current fabric or applying too much pressure during use, the presser foot may be damaged.
[0004] Currently, the presser foot is replaced as a whole after being worn and deformed, which will cause material waste and increase production costs. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a sewing machine presser foot structure, which is characterized by comprising a limiting portion and a pad, wherein the limiting portion is a U-shaped structure, and a limiting fixing groove is provided at the bottom of the limiting portion; the pad is a U-shaped structure as a whole, comprising a fixing plate and a presser foot plate fixedly connected to the bottom of the fixing plate, the fixing plate is adapted to the structure of the limiting fixing groove, and the limiting portion and the pad are detachably connected.
[0006] Furthermore, the limiting portion is vertically provided with a plurality of bolt installation holes, and the top of the fixing plate is correspondingly provided with a plurality of threaded holes, and adjusting bolts are installed in the bolt installation holes and the threaded holes to connect the limiting portion and the pad.
[0007] Furthermore, the bolt mounting holes are provided at four corners of the limiting portion, and the threaded holes are provided at four corners of the fixing plate.
[0008] Furthermore, a connecting portion is provided at the rear end of the limiting portion, and the connecting portion is connected to a fixing portion on the sewing machine body.
[0009] Furthermore, the connecting part includes a rectangular interface and a rectangular plug-in part adapted to the rectangular interface. The rectangular interface is fixedly connected to the rear end of the limiting part. Pin holes are opened on the sides of the rectangular interface and the rectangular plug-in part. The rectangular plug-in part is inserted into the rectangular interface and connected with a fixing pin inserted into the pin hole.
[0010] Compared with the prior art, according to the sewing machine presser foot structure provided by the utility model, only a part of the overall presser foot structure needs to be replaced, which saves materials and helps to reduce production costs. In addition, the horizontality of the presser foot plate can be adjusted by adjusting the bolt, which can extend the service life of the pad. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The drawings herein are used to provide further description of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.
[0012] Figure 1 It is a structural schematic diagram of the presser foot structure of a sewing machine according to the utility model;
[0013] Figure 2 It is a structural diagram of the pad.
[0014] In the figure, 1-limiting part, 2-fixing plate, 3-presser foot plate, 4-limiting fixing groove, 5-bolt mounting hole, 6-threaded hole, 7-adjusting bolt, 8-fixing part, 9-rectangular interface, 10-rectangular plug-in part, 11-fixing pin. DETAILED DESCRIPTION
[0015] In order to make those skilled in the art better understand the present invention, the present invention is further explained in detail below with reference to the accompanying drawings and embodiments. It should be noted that the features in the embodiments and embodiments of the present application can be combined with each other without conflict.
[0016] A typical embodiment of the utility model provides a sewing machine presser foot structure, comprising a limiting portion 1 and a backing plate, wherein the limiting portion 1 is a U-shaped structure, and a limiting fixing groove 4 is opened at the bottom of the limiting portion 1; the backing plate is a U-shaped structure as a whole, comprising a fixing plate 2 and a presser foot plate 3 fixedly connected to the bottom of the fixing plate 2, the fixing plate 2 is adapted to the structure of the limiting fixing groove 4, and the limiting portion 1 is detachably connected to the backing plate.
[0017] In the U-shaped structure of the presser foot 3, there are two strip-shaped pressing parts at both ends, which are used to cooperate with the feed teeth under the cloth, so that the cloth is pressed between the strip-shaped pressing part 1 and the feed teeth, and the cloth is continuously conveyed forward.
[0018] Compared with the existing integrated presser foot structure, the presser foot plate 3 described in this embodiment is made of thinner material.
[0019] The fixing plate 2 and the presser plate 3 can be made of the same material, for example, both can be made of plastic or metal. The two can also be made of different materials, and the presser plate 3 can be made of the corresponding material according to different fabrics, and the fixing plate 2 is preferably made of cheaper plastic.
[0020] According to the above embodiment, a suitable backing plate is selected for replacement according to the sewing task and the type of fabric, and since the backing plate is only a part of the presser foot structure, only replacing the backing plate can save production costs. After replacing the backing plate, the fixing plate 2 is embedded in the limit fixing groove 4, and the presser foot plate 3 serves as a working part.
[0021] In a relatively specific embodiment, a method is provided in which the limiting part 1 and the backing plate are connected by bolts. The limiting part 1 is vertically provided with a plurality of bolt installation holes 5, and the top of the fixing plate 2 is correspondingly provided with a plurality of threaded holes 6, and the adjusting bolts 7 are installed in the bolt installation holes 5 and the threaded holes 6 to connect the limiting part 1 and the backing plate.
[0022] Usually, after a period of use, the bottom of the presser foot plate 3 may be worn or subjected to other external forces, causing the working surface of the bottom of the presser foot plate 3 to be tilted to a certain extent. In a preferred embodiment, the bolt mounting holes 5 are provided at the four corners of the limiting portion 1, and the threaded holes 6 are provided at the four corners of the fixing plate 2. According to this embodiment, the horizontality of the working surface of the bottom of the presser foot plate 3 can be fine-tuned by rotating each adjusting bolt 7 respectively.
[0023] In a preferred embodiment, a connecting portion is provided at the rear end of the limiting portion 1, and the connecting portion is connected to a fixing portion 8 on the sewing machine body.
[0024] In another preferred embodiment, the connecting portion includes a rectangular interface 9 and a rectangular plug-in portion 10 adapted to the rectangular interface 9, the rectangular interface 9 is fixedly connected to the rear end of the limiting portion 1, and the sides of the rectangular interface 9 and the rectangular plug-in portion 10 are both provided with pin holes, and the rectangular plug-in portion 10 is inserted into the rectangular interface 9 and connected with a fixing pin 11 inserted into the pin hole. In this embodiment, the length of the rectangular plug-in portion 10 inserted into the rectangular interface 9 can be adjusted, so that the distance between the sewing machine presser foot structure and the fixing portion 8 of the sewing machine body can be adjusted, which is important for replacing the pad with a presser foot plate 3 of different lengths, and can adjust the presser foot plate 3 to a reasonable working position.
[0025] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modification, improvement and equivalent substitution made within the concept and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A sewing machine presser foot structure, characterized in that: It includes a limiting part and a pad, wherein the limiting part is a U-shaped structure, and a limiting fixing groove is opened at the bottom of the limiting part; the pad is a U-shaped structure as a whole, including a fixing plate and a pressure foot plate fixedly connected to the bottom of the fixing plate, the fixing plate is adapted to the structure of the limiting fixing groove, and the limiting part and the pad are detachably connected.
2. The sewing machine presser foot structure according to claim 1, characterized in that: The limiting part is vertically provided with a plurality of bolt installation holes, and the top of the fixing plate is correspondingly provided with a plurality of threaded holes, and adjusting bolts are installed in the bolt installation holes and the threaded holes to connect the limiting part and the pad.
3. The sewing machine presser foot structure according to claim 2, characterized in that: The bolt installation holes are arranged at the four corners of the limiting part, and the threaded holes are arranged at the four corners of the fixing plate.
4. The sewing machine presser foot structure according to claim 1 or 3, characterized in that: A connecting portion is provided at the rear end of the limiting portion, and the connecting portion is connected to a fixing portion on the sewing machine body.
5. The sewing machine presser foot structure according to claim 4, characterized in that: The connecting part includes a rectangular interface and a rectangular plug-in part adapted to the rectangular interface. The rectangular interface is fixedly connected to the rear end of the limiting part. Pin holes are opened on the sides of the rectangular interface and the rectangular plug-in part. The rectangular plug-in part is inserted into the rectangular interface and connected with a fixing pin inserted into the pin hole.