Portable saw blade
By designing a lightweight saw blade with three-section cutting teeth and a bent handle, the problems of low cutting efficiency, poor cut quality, and complex management of existing saw blades have been solved, achieving efficient cutting, smooth cut surfaces, easy cleaning, and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SAN NENG BAKE WARE WUXI
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-05
AI Technical Summary
Existing saws in the baking industry suffer from problems such as low cutting efficiency, poor cut quality, difficult maintenance, inconvenient cleaning, and unstable operation. Furthermore, different types of saws increase costs and management difficulty.
A lightweight saw blade was designed, featuring a three-section cutting tooth structure, including the first, second, and third tooth pitch sections. The length and height of the saw blade and teeth in each section are different. Combined with the bending design of the handle, it is suitable for cutting ingredients of different hardness. A simple arc-shaped structure is used to improve cutting efficiency and cleanliness.
It achieves efficient cutting, a smooth cut surface, and is easy to clean and maintain, improving operational stability and service life while reducing costs and management difficulty.
Smart Images
Figure CN224196852U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a saw mainly used in the baking industry, and specifically discloses a lightweight saw. Background Technology
[0002] A serr is widely used in the baking industry, primarily for cutting baguettes, European-style bread, chiffon cakes, mousse cakes, and other Western-style pastries, as well as fruits. There are many types of serrs on the market, mainly divided into coarse-toothed and fine-toothed types, primarily used for cutting hard breads and soft cakes. Most Western-style bakeries offer both hard breads and soft cakes, along with various sizes of these products. Therefore, each bakery has a large variety of serrs, increasing both the cost of purchasing different types and the management complexity of the store. Bakers also spend significantly more time and effort finding the right ser.
[0003] There are many saw manufacturers on the market, and the quality varies greatly. Problems mainly lie in the design of the saw teeth and handle shape, as well as the choice of saw material. A poorly designed tooth pitch on a coarse-toothed saw requires repeated pulling and cutting when processing hard breads (such as baguettes and European-style bread), which is time-consuming, laborious, and easily leads to hand fatigue. Improperly designed saw teeth can also cause tearing cuts, resulting in more bread crumbs and a rough cut surface, affecting the appearance of the finished product. Improperly designed teeth can cause the structure of soft ingredients such as cakes to collapse or deform if handled improperly. Complex tooth shapes can easily leave food residue, making cleaning difficult and posing a higher hygiene risk. An improperly designed saw tooth shape can lead to insufficient blade strength, causing it to dull easily and requiring frequent sharpening to maintain sharpness, increasing the difficulty of use and maintenance, and significantly reducing the saw's lifespan. Some saw handles have poorly designed structures, greatly reducing user comfort and operational stability. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a lightweight saw blade with high cutting efficiency, good cut quality, convenient maintenance and cleaning, and better operational stability.
[0005] According to the technical solution provided by this utility model, the lightweight saw includes a blade body and a handle. The handle is fixed to the right end of the blade body, and the top edge of the blade body is provided with cutting teeth. In the length direction of the blade body, the cutting teeth include a first tooth pitch segment, a second tooth pitch segment and a third tooth pitch segment connected in sequence, with the third tooth pitch segment close to the handle.
[0006] The first tooth pitch segment is formed by connecting several first cutting edges that are concave in an arc shape. The connecting end of two adjacent first cutting edges forms a first cutting tooth, and the tooth tip of the first cutting tooth is a plane.
[0007] The second tooth pitch segment is formed by connecting several concave second cutting edges in an arc shape. The connecting ends of two adjacent second cutting edges form a second cutting tooth, and the tooth tip of the second cutting tooth is a plane.
[0008] The third tooth pitch segment is formed by connecting several concave arc-shaped third cutting edges, and the connecting end of two adjacent third cutting edges forms a third cutting tooth, the tooth tip of the third cutting tooth is a plane;
[0009] The length L1 of the first cutting edge is less than the length L2 of the second cutting edge, and the length L2 of the second cutting edge is less than the length L3 of the third cutting edge.
[0010] The height H1 of the first cutting tooth is less than the height H2 of the second cutting tooth, and the height H2 of the second cutting tooth is less than the height H3 of the third cutting tooth.
[0011] Preferably, the length L1 of the first cutting edge is 4±0.3mm, the length L2 of the second cutting edge is 5±0.3mm, and the length L3 of the third cutting edge is 6±0.3mm.
[0012] Preferably, the height H1 of the first cutting tooth is 1.0±0.2mm, the height H2 of the second cutting tooth is 1.25±0.2mm, and the height H3 of the third cutting tooth is 1.5±0.2mm.
[0013] Preferably, the tips of the first cutting tooth, the second cutting tooth, and the third cutting tooth are distributed in an upward convex arc shape. The distance D1 between the tip of the leftmost first cutting tooth and the highest point of the arc is 2±0.5mm, and the distance D2 between the tip of the rightmost third cutting tooth and the highest point of the arc is 2±0.5mm.
[0014] Preferably, a first tooth pitch dividing line is provided on the cutter body at the connection between the first tooth pitch segment and the second tooth pitch segment, and a second tooth pitch dividing line is provided on the cutter body at the connection between the second tooth pitch segment and the third tooth pitch segment.
[0015] Preferably, the handle is bent upwards along its length relative to the length of the blade.
[0016] Preferably, the handle is bent upwards at a 4-8° angle relative to the length of the blade.
[0017] Preferably, the widths of the first cutting edge, the second cutting edge, and the third cutting edge are equal and are all 1±0.2mm.
[0018] Preferably, the tooth tip widths of the first, second, and third cutting teeth are equal and all equal to the thickness of the blade body, and the tooth tip lengths of the first, second, and third cutting teeth are equal and all are 0.2±0.04mm.
[0019] This utility model has the following advantages:
[0020] 1. Fewer limitations, more versatility;
[0021] 2. The cutting blade spacing is reasonable, resulting in high cutting efficiency;
[0022] 3. The cutting edge is sharp, and the cut surface is smooth;
[0023] 4. The cutting blade has a simple structure, is not prone to accumulating dirt, and is easy to maintain and clean;
[0024] 5. The handle is ergonomically designed, providing better grip comfort and operational stability. Attached Figure Description
[0025] Figure 1 This is the front view of this utility model.
[0026] Figure 2 This is a top view of the present invention.
[0027] Figure 3 yes Figure 1 Enlarged view of part A in the image.
[0028] Figure 4 yes Figure 1 Enlarged view of part B in the image.
[0029] Figure 5 yes Figure 1 Enlarged view of section C in the image.
[0030] Figure 6 This is a schematic diagram showing that the tips of the first, second, and third cutting teeth in this utility model are distributed in an upwardly convex arc shape.
[0031] Explanation of reference numerals in the attached diagram: 1 represents the blade body, 1.1 represents the first tooth pitch segment, 1.11 represents the first cutting edge, 1.12 represents the first cutting tooth, 1.2 represents the second tooth pitch segment, 1.21 represents the second cutting edge, 1.22 represents the second cutting tooth, 1.3 represents the third tooth pitch segment, 1.31 represents the third cutting edge, 1.32 represents the third cutting tooth, 1.4 represents the first tooth pitch dividing line, 1.5 represents the second tooth pitch dividing line, and 2 represents the handle. Detailed Implementation
[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] A lightweight saw, such as Figure 1-6 As shown, it includes a blade body 1 and a handle 2. The handle 2 is fixed to the right end of the blade body 1. The top edge of the blade body 1 is provided with cutting serrations. In the length direction of the blade body 1, the cutting serrations include a first tooth pitch segment 1.1, a second tooth pitch segment 1.2 and a third tooth pitch segment 1.3 connected in sequence. The third tooth pitch segment 1.3 is close to the handle 2.
[0034] The first tooth pitch segment 1.1 is formed by connecting several first cutting edges 1.11 that are concave in an arc shape. The connecting end of two adjacent first cutting edges 1.11 forms a first cutting tooth 1.12, and the tooth tip of the first cutting tooth 1.12 is a plane.
[0035] The second tooth pitch segment 1.2 is formed by connecting several concave second cutting edges 1.21 in an arc shape. The connecting ends of two adjacent second cutting edges 1.21 form a second cutting tooth 1.22, and the tooth tip of the second cutting tooth 1.22 is a plane.
[0036] The third tooth pitch segment 1.3 is formed by connecting several arc-shaped concave third cutting edges 1.31, and the connecting end of two adjacent third cutting edges 1.31 forms a third cutting tooth 1.32, the tooth tip of the third cutting tooth 1.32 is a plane;
[0037] The length L1 of the first cutting edge 1.11 is less than the length L2 of the second cutting edge 1.21, and the length L2 of the second cutting edge 1.21 is less than the length L3 of the third cutting edge 1.31;
[0038] The height H1 of the first cutting tooth 1.12 is less than the height H2 of the second cutting tooth 1.22, and the height H2 of the second cutting tooth 1.22 is less than the height H3 of the third cutting tooth 1.32.
[0039] The length L1 of the first cutting edge 1.11 is 4±0.3mm, the length L2 of the second cutting edge 1.21 is 5±0.3mm, and the length L3 of the third cutting edge 1.31 is 6±0.3mm.
[0040] The height H1 of the first cutting tooth 1.12 is 1.0±0.2mm, the height H2 of the second cutting tooth 1.22 is 1.25±0.2mm, and the height H3 of the third cutting tooth 1.32 is 1.5±0.2mm.
[0041] The tips of the first cutting tooth 1.12, the second cutting tooth 1.22, and the third cutting tooth 1.32 are distributed in an upward convex arc shape. The tip of the first cutting tooth 1.12, which is on the far left, is 2±0.5mm below the highest point of the arc by a distance D1. The tip of the third cutting tooth 1.32, which is on the far right, is 2±0.5mm below the highest point of the arc by a distance D2.
[0042] A first tooth pitch dividing line 1.4 is provided on the cutter body 1 at the connection between the first tooth pitch segment 1.1 and the second tooth pitch segment 1.2, and a second tooth pitch dividing line 1.5 is provided on the cutter body 1 at the connection between the second tooth pitch segment 1.2 and the third tooth pitch segment 1.3, so as to facilitate the operator's visual and convenient operation.
[0043] The handle 2 is bent upwards relative to the length of the blade 1.
[0044] The handle 2 is bent upward at a 4-8° angle relative to the length of the blade 1.
[0045] The widths of the first cutting edge 1.11, the second cutting edge 1.21, and the third cutting edge 1.31 are equal and are all 1±0.2mm.
[0046] The tooth tip widths of the first cutting tooth 1.12, the second cutting tooth 1.22, and the third cutting tooth 1.32 are equal and are all equal to the thickness of the cutter body 1. The tooth tip lengths of the first cutting tooth 1.12, the second cutting tooth 1.22, and the third cutting tooth 1.32 are equal and are all 0.2±0.04mm.
[0047] In this invention, the length L1 of the first cutting edge 1.11 and the height H1 of the first cutting tooth 1.12 in the first tooth pitch segment 1.1 are both relatively small, suitable for precise cutting, reducing pressure on soft ingredients, and can meet the requirements for dividing soft cakes. The length L3 of the third cutting edge 1.31 and the height H3 of the third cutting tooth 1.32 in the third tooth pitch segment 1.3 are relatively large, which can quickly pierce hard crusts and reduce cutting resistance, and can meet the requirements for dividing hard breads. The length L2 of the second cutting edge 1.21 and the height H2 of the second cutting tooth 1.22 in the second tooth pitch segment 1.2 are moderate, and can cut products with moderate softness and hardness.
[0048] In this utility model, the first cutting blade 1.11, the second cutting blade 1.21 and the third cutting blade 1.31 are all designed with an arc shape, which makes the structure simple, easy to machine, not easy to accumulate dirt, and convenient to maintain and clean. This makes the lightweight saw blade of this utility model capable of multiple uses, with fewer limitations and greater versatility.
[0049] In this invention, the tips of the first cutting tooth 1.12, the second cutting tooth 1.22, and the third cutting tooth 1.32 are arranged in an upwardly convex arc shape. The tip of the leftmost first cutting tooth 1.12 is 2±0.5mm below the highest point of the arc, and the tip of the rightmost third cutting tooth 1.32 is 2±0.5mm below the highest point of the arc, D2. Compared with traditional straight cutting teeth, this invention has a smaller contact area, sharper cutting, and higher cutting efficiency.
[0050] Currently, common saw blade tooth shapes include triangular and wavy shapes. The tips of these teeth are quite sharp, resulting in concentrated force during cutting and a tendency for chipping. This leads to more frequent sharpening and significantly reduces the blade's lifespan. In this invention, the first cutting tooth 1.12, the second cutting tooth 1.22, and the third cutting tooth 1.32 all have flat tips, avoiding sharp tooth tips. This ensures both sharpness and increased tooth tip strength, improving durability and cutting smoothness.
[0051] In this invention, the handle 2 is made of PP material, which is soft and comfortable to hold. The length of the handle 2 is bent upward at 4-8° relative to the length of the blade 1, allowing the wrist to be raised when cutting, resulting in a zero-force grip. The tops of the first cutting tooth 1.12, the second cutting tooth 1.22, and the third cutting tooth 1.32 are all designed with an upward convex arc shape, which improves the smoothness of cutting and greatly enhances the user experience.
[0052] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A lightweight saw blade, comprising a blade body (1) and a handle (2), the handle (2) being fixed to the right end of the blade body (1), and the top edge of the blade body (1) being provided with cutting teeth; characterized in that: Along the length of the blade (1), the cutting teeth include a first tooth pitch segment (1.1), a second tooth pitch segment (1.2), and a third tooth pitch segment (1.3) connected in sequence, with the third tooth pitch segment (1.3) being close to the handle (2). The first tooth pitch segment (1.1) is formed by connecting several first cutting edges (1.11) that are concave in an arc shape. The connecting end of two adjacent first cutting edges (1.11) forms a first cutting tooth (1.12), and the tooth tip of the first cutting tooth (1.12) is a plane. The second tooth pitch segment (1.2) is formed by connecting several concave second cutting edges (1.21) in an arc shape. The connecting end of two adjacent second cutting edges (1.21) forms a second cutting tooth (1.22), and the tooth tip of the second cutting tooth (1.22) is a plane. The third tooth pitch segment (1.3) is formed by connecting several third cutting edges (1.31) that are concave in an arc shape. The connecting end of two adjacent third cutting edges (1.31) forms a third cutting tooth (1.32), and the tooth tip of the third cutting tooth (1.32) is a plane. The length L1 of the first cutting edge (1.11) is less than the length L2 of the second cutting edge (1.21), and the length L2 of the second cutting edge (1.21) is less than the length L3 of the third cutting edge (1.31). The height H1 of the first cutting tooth (1.12) is less than the height H2 of the second cutting tooth (1.22), and the height H2 of the second cutting tooth (1.22) is less than the height H3 of the third cutting tooth (1.32).
2. The lightweight saw blade as described in claim 1, characterized in that: The length L1 of the first cutting edge (1.11) is 4±0.3mm, the length L2 of the second cutting edge (1.21) is 5±0.3mm, and the length L3 of the third cutting edge (1.31) is 6±0.3mm.
3. The lightweight saw blade as described in claim 1, characterized in that: The height H1 of the first cutting tooth (1.12) is 1.0±0.2mm, the height H2 of the second cutting tooth (1.22) is 1.25±0.2mm, and the height H3 of the third cutting tooth (1.32) is 1.5±0.2mm.
4. The lightweight saw blade as described in claim 1, characterized in that: The tips of the first cutting tooth (1.12), the second cutting tooth (1.22), and the third cutting tooth (1.32) are distributed in an upward convex arc shape. The tip of the first cutting tooth (1.12) on the far left is 2±0.5mm below the highest point of the arc, and the tip of the third cutting tooth (1.32) on the far right is 2±0.5mm below the highest point of the arc, D2.
5. The lightweight saw blade as described in claim 1, characterized in that: A first tooth pitch dividing line (1.4) is provided on the cutter body (1) at the connection between the first tooth pitch segment (1.1) and the second tooth pitch segment (1.2), and a second tooth pitch dividing line (1.5) is provided on the cutter body (1) at the connection between the second tooth pitch segment (1.2) and the third tooth pitch segment (1.3).
6. The lightweight saw blade as described in claim 1, characterized in that: The handle (2) is bent upwards relative to the length of the blade (1).
7. The lightweight saw blade as described in claim 6, characterized in that: The handle (2) is bent upward at 4-8° relative to the length of the blade (1).
8. The lightweight saw blade as described in claim 1, characterized in that: The widths of the first cutting edge (1.11), the second cutting edge (1.21), and the third cutting edge (1.31) are equal and are all 1±0.2mm.
9. The lightweight saw blade as described in claim 1, characterized in that: The tooth tip widths of the first cutting tooth (1.12), the second cutting tooth (1.22), and the third cutting tooth (1.32) are equal and are all equal to the thickness of the blade body (1). The tooth tip lengths of the first cutting tooth (1.12), the second cutting tooth (1.22), and the third cutting tooth (1.32) are equal and are all 0.2±0.04mm.