Improved outer blade of reciprocating shaver
Through the reciprocating razor outer knife adopting an integrated structure, the main body is bent from a thin plate, with a T-shaped top surface with open cutting teeth and four support feet, combined with the reinforcement structure, multiple problems in the design of the existing technology in Chinese and foreign knife are solved, and the effect of high strength, easy processing, improved cutting efficiency and reduced noise is achieved.
Patent Information
- Application Number
- CN202420596799.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-26
AI Technical Summary
There are many problems in the design of the existing reciprocating razor external knife, including the inlet groove of the door-shaped outer knife, and the inlet groove in the cutting edge area on the top of the outer knife can only be a gap groove, which cannot be toothed, resulting in inconvenience in assembly and inability to fit and enter; there are corners at the connection between the front and back of the outer knife and the cutting edge area on the top of the outer knife, resulting in uneven plastic deformation, causing irritation to the skin; the outer knife set for cutting teeth generally adopts a split type, with many processing steps, the connection affects the accuracy, and the strength of the knife body is low.
The reciprocating shaver outer knife adopts an integrated structure. The main body is bent by a thin plate, including the top surface with cutting teeth and four supporting feet. The top surface has a T-shaped cross-section. The guide beam is concave or folded in half at the center position. The cutting teeth distribution area is on the front and rear sides of the guide beam. The cutting teeth tip is the free end and the front and rear sides of the four supporting feet are open teeth. Before the thin plate is bent, the main body is stamped to form an upper convex reinforcement rib, including a central transverse rib and a four-corner extension rib, forming a cutting tooth distribution area that is sunken against the work-shaped reinforcement rib frame.
It achieves the effect of high overall strength, easy processing and few processes, avoids plastic deformation caused by corners, improves cutting efficiency, reduces noise, and improves the benefits of hair trimming, and reduces hair accumulation and affects reciprocating movement.
Smart Images
Figure CN222553621U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an outer blade of a reciprocating shaver. Background Art
[0002] There are many types of reciprocating hair cutting devices on the market, and all of them achieve hair cutting through the relative movement of the moving knife and the outer knife. For the unit-type shaving unit, the door-type outer knife is preferred. However, there are certain limitations on the beard feed slot of the door-type outer knife. The beard feed slot in the blade area at the top of the outer knife can only be a gap slot and cannot be teeth. The front and back of the outer knife corresponding to the blade area at the top of the outer knife are non-open, which affects assembly and beard feeding. There is a corner at the connection between the front and back of the outer knife and the blade area on the top of the outer knife, and uneven plastic deformation will occur, causing irritation to the skin. For the outer knife with cutting teeth, a split type is generally adopted, that is, the top surface is a long blade shape connected to the lower support assembly, there are many processing steps, the connection affects the accuracy, the outer knife with cutting teeth cannot be integrated, and the knife body strength is low. Summary of the invention
[0003] The utility model provides an improved structure of an outer blade of a reciprocating razor with cutting teeth. The utility model has an integrated structure, high overall strength, convenient processing and fewer working procedures.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: an improved reciprocating razor outer blade, comprising a main body, which is formed by bending a thin plate, including a top surface with a plurality of cutting teeth and four supporting feet bent downward from the four corners of the top surface, the cross-section of the top surface is T-shaped, that is, the top surface includes a guide beam formed by being concave or folded in the center position along the length direction of the main body, and a cutting tooth distribution area arranged on the front and rear sides of the guide beam, the cutting teeth are distributed along the length direction of the front and rear sides on the cutting tooth distribution area, and the tooth tip of the cutting tooth is a free end and is an open tooth relative to the front and rear sides where the four supporting feet are located.
[0005] As an improvement: the main body is first punched out to form convex reinforcing ribs before the thin plate is bent, and the reinforcing ribs are arranged in an I-shaped pattern on the unbent thin plate, that is, the reinforcing ribs include a central transverse rib with a certain width that crosses the thin plate, and four corner extension ribs extending from the central transverse rib to four supporting feet, and the I-shaped reinforcing rib frame is used to form a cutting tooth distribution area that is sunken relative to the I-shaped reinforcing rib frame.
[0006] As an improvement: the central transverse rib has a certain width, that is, the area bent into the guide beam is located within the central transverse rib.
[0007] As an improvement: the free tip of the cutting tooth is set as a large-head arc.
[0008] As an improvement: the four supporting legs are all provided with a connecting structure for fixing the outer knife.
[0009] The beneficial effects provided by the utility model are: the integrated four-corner support structure enables the top surface as the working surface to have a cutting tooth distribution area, and the cutting teeth are open relative to the front and rear sides of the main body, that is, the left and right supporting feet on the front or rear side are relatively independent and not connected, and can even form a buckle structure for fixed connection. It saves materials, and the four-corner support structure can also avoid problems such as arching, twisting, and corners in the middle of the front and rear sides of the long strip. The open cutting teeth are not blocked and isolated by the front and rear sides, and the hair trimming efficiency is higher, which is more conducive to the removal of broken hair and avoids the accumulation of hair affecting the reciprocating motion. The guide beam in the middle of the outer knife of the outer knife main body can not only keep the top surface of the outer knife extended in the length direction and keep it straight, but also greatly enhance the strength of the top surface. The guide beam can also cooperate with the moving knife below to form a guide structure to ensure the reciprocating motion of the moving knife in the length direction, improve cutting efficiency, and reduce noise.
[0010] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The utility model is a schematic diagram of the structure of a reciprocating razor with an improved reciprocating razor outer knife.
[0012] Figure 2 The utility model is a structural schematic diagram of the outer blade of an improved reciprocating razor.
[0013] Figure 3 yes Figure 2 Schematic diagram of the bottom structure of the outer knife.
[0014] Figure 4 yes Figure 2 Side view of the outer knife.
[0015] Figure 5 It is a schematic diagram of the main structure of the outer knife before bending and forming.
[0016] Figure 6 yes Figure 5 Schematic diagram of the back structure. DETAILED DESCRIPTION
[0017] In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be understood that the terms "connected", "connected", "fixed" and the like used in the present utility model should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated; it can be a mechanical connection or a welding connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, an embodiment of the outer blade of the improved reciprocating razor of the utility model comprises a main body, which is formed by bending a thin plate, including a top surface 1 with a plurality of cutting teeth and four supporting feet 2 formed by bending downward from the four corners of the top surface 1, the cross section of the top surface is T-shaped, that is, the top surface includes a guide beam 11 formed by being concave or folded in the center position along the length direction of the main body, and a cutting tooth distribution area 12 arranged on the front and rear sides of the guide beam, and each cutting tooth 121 is distributed along the length direction of the front and rear sides on the cutting tooth distribution area, and the tooth tip of the cutting tooth is an open tooth with a free end relative to the front and rear sides where the four supporting feet are located. The free tip of the cutting tooth is set as a large head arc. This makes the free tip of the cutting tooth have comb teeth and skin protection functions. The four supporting feet are each provided with a connecting structure for fixing the outer blade.
[0019] The main body is first punched to form convex reinforcing ribs 3 before the thin plate is bent. The reinforcing ribs are arranged in an I-shaped pattern on the unbent thin plate, that is, the reinforcing ribs include a central transverse rib 31 that crosses the thin plate and has a certain width, and four corner extension ribs 32 extending from the central transverse rib to the four supporting feet 2. The central transverse rib has a certain width, that is, the area bent into the guide beam is within the central transverse rib. The I-shaped reinforcing rib frame defines a cutting tooth distribution area 12 that is sunken relative to the I-shaped reinforcing rib frame. After bending and forming, the cutting tooth distribution area 12 is slightly sunken relative to the top surface of the main body, which improves skin-friendly comfort and skin feel. The reinforcing ribs of this structure are not thin strips, but are arranged in an I-shaped pattern. The reinforcing ribs are connected as a whole. Compared with segmented reinforcing ribs, the reinforcing ribs of this structure have higher strength, are easy to process, have high precision, and do not have plastic distortion effects on the cutting tooth distribution area. The cutting teeth have very high consistency and the quality of the shaving outer blade is better.
[0020] Although the utility model has been disclosed as above in terms of specific embodiments, it is not intended to limit the utility model. Any technician in this field can make slight changes and modifications without departing from the spirit and scope of the utility model. Therefore, the scope of protection of the utility model should be determined by the scope of the attached claims.
Claims
1. An improved reciprocating razor outer blade, characterized in that: The invention comprises a main body, which is formed by bending a thin plate, and comprises a top surface (1) with a plurality of cutting teeth and four supporting feet (2) formed by bending downwards from four corners of the top surface (1), wherein the cross section of the top surface is T-shaped, that is, the top surface comprises a guide beam (11) formed by being concave or folded in the center along the length direction of the main body, and a cutting tooth distribution area (12) arranged on the front and rear sides of the guide beam, wherein each cutting tooth (121) is distributed along the length direction of the front and rear sides on the cutting tooth distribution area, and the tip of the cutting tooth is a free end and is an open tooth relative to the front and rear sides where the four supporting feet are located.
2. The improved reciprocating razor outer blade according to claim 1, characterized in that: The main body is first punched to form convex reinforcing ribs (3) before the thin plate is bent. The reinforcing ribs are arranged in an I-shaped pattern on the unbent thin plate, that is, the reinforcing ribs include a central transverse rib (31) with a certain width that crosses the thin plate, and four corner extension ribs (32) extending from the central transverse rib to the four supporting legs (2). The I-shaped reinforcing rib frame forms a cutting tooth distribution area (12) that is sunken relative to the I-shaped reinforcing rib frame.
3. The improved reciprocating razor outer blade according to claim 2, characterized in that: The central transverse rib has a certain width, that is, the area bent into the guide beam is within the central transverse rib.
4. The improved reciprocating razor outer blade according to claim 1, 2 or 3, characterized in that: The free tip of the cutting tooth is arranged as a large-head arc.
5. The improved reciprocating razor outer blade according to claim 1, 2 or 3, characterized in that: The four supporting legs are all provided with connecting structures for fixing the outer knife.
6. The improved reciprocating razor outer blade according to claim 4, characterized in that: The four supporting legs are all provided with connecting structures for fixing the outer knife.