CN101301757A - Razor blade, razor head and razor - Google Patents

Abstract

The invention discloses a razor blade, a razor head and a razor. The razor blade includes a first fastening plate, a second fastening plate and a blade. The second fixing plate is connected with the first fixing plate, and the first fixing plate and the second fixing plate clamp the blade together. The first fixing plate and the second fixing plate are integrally formed by metal. The shaving head comprises the shaving blade and a fixing seat. The first fixing plate of the razor blade is connected with the fixing seat. The razor includes the razor blade, the holder, a housing and a handle. The shell is respectively connected with the fixed seat and the handle.

Description

Razor blades, razor heads and razors

technical field

The present invention relates to a razor blade, and in particular, to a razor head and a razor having such a razor blade.

Background technique

The razor is a daily necessities for men, and the quality of the razor blade often decisively determines whether a razor is good or bad. And the fixing mode of razor blade then further influences the function that razor blade can bring into play. In conventional razors, the blade is directly attached to a plastic seat. The force borne by the blade will be directly borne by the blade itself and indirectly borne by the plastic seat. In order to effectively shave the beard and remove dandruff smoothly, the blades are mostly made into thin plates, but the strength of the blades is not high. Therefore, the plastic seat usually supports the blade with multiple supporting parts to provide sufficient structural strength. However, the strength of plastic is still inferior to that of metal, so the supporting parts occupy a considerable volume to provide sufficient supporting strength, but it is not conducive to removing dandruff.

In addition, simply using the plastic support part to provide support cannot effectively fix the blade. For example, when some beards hook the blade, the blade will tend to be hooked off the support portion by the beards, and further damage the user's skin. If hooks are designed on the supporting parts to hook the blades, the supporting parts may reduce or avoid the aforementioned problems. However, as mentioned above, the strength provided by the plastic supporting part is limited, and the design of the hook structure is limited due to limited space, so the blade may be hooked off the supporting part by the beard. Therefore, in the known razor, the blade is also wound with a thin metal wire to fix the blade on the plastic seat. Although this method of fixing the blade can effectively fix the blade and prevent the blade from being hooked off, there are disadvantages such as complicated procedures and difficult yield control in terms of manufacturing and assembly. And, the function of its shaving beard will be limited in the portion of the blade that contacts the thin metal wire.

Therefore, it is necessary to design a razor blade that can provide higher strength and a razor head and a razor with the razor blade to solve the above-mentioned problems.

Contents of the invention

One scope of the present invention is to provide a razor blade, a razor head and a razor having the razor blade. The razor blade has higher strength than known razor blades.

The razor blade of the present invention comprises a first fixing plate, a second fixing plate and a blade. A plane is defined on the first fixing plate. The second fixing plate is connected with the first fixing plate. The second fixing plate has a surface, and the surface is substantially parallel to the plane. The blade is disposed between the surface and the plane. In actual production, the first fixing plate and the second fixing plate are integrally formed by metal. Or the second fixing plate is connected to the first fixing plate through a spot welding process.

In addition, the razor blade of the present invention can effectively clamp the blade by the second fixing plate abutting against the blade on the first fixing plate. In actual design, the close contact can be achieved by forming an included angle between the surface of the second fixing plate and the plane. That is to say, the second fixing plate and the first fixing plate form a hairpin structure to clamp the blade. In addition, in order to make the blade firmly fixed between the first fixing plate and the second fixing plate, the second fixing plate may further have a dent, and the dent is located between the second fixing plate and the first fixing plate. Near the connection of the fixed plate. The notch can prevent the rounded corner of the second fixing plate from interfering with the blade, so as to achieve the purpose of stably fixing the blade.

The razor head of the present invention comprises the first fixing plate, the second fixing plate, the blade and a fixing base. The first fixing plate is engaged with the fixing seat. In a specific embodiment, the first fixing plate has a first end and a second end, and the first fixing plate is engaged with the fixing seat through the first end and the second end. Moreover, the fixing base further includes a supporting portion, and the first fixing plate is arranged on the supporting portion to achieve the purpose of supporting the razor blade.

The shaver of the present invention comprises the first fixing plate, the second fixing plate, the blade, the fixing seat, a shell and a handle. The shell is engaged with the fixture, and the shell is also engaged with the handle. In one embodiment, the handle is detachably connected to the housing. In another embodiment, the handle is slidably or limitedly rotatably coupled to the housing.

Therefore, according to the razor of the present invention, the razor blade has higher strength than the conventional razor blade, and no additional components, such as metal wires, are needed to assist in fixing on the fixing seat. Moreover, since the strength of the razor blade is increased, the razor blade will not be hooked off by the beard, and the structure of the fixing seat is further simplified. Further, the blade of the razor blade of the present invention can be directly formed by a stamping process, and the first fixing plate and the second fixing plate can also be integrally formed by a stamping process, with a fixed seat with a simplified structure, the razor of the present invention The head can be easily assembled. Further through automation, the manufacturing cost of the razor head can be greatly reduced, and the manufacturing yield can be improved.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

Description of drawings

Fig. 1A is a front view showing a shaver according to a preferred embodiment.

FIG. 1B is a top view of the razor.

FIG. 1C is a right side view of the razor.

FIG. 1D shows a state where the handle is separated from the shell.

FIG. 1E is a schematic diagram illustrating the limited rotation engagement of the handle and the housing.

FIG. 2A is a front view showing the combination of the first fixing plate, the second fixing plate and the blade.

FIG. 2B is a side view illustrating the combination of the first fixing plate, the second fixing plate and the blade.

FIG. 2C is a schematic diagram showing that the blades are not assembled to the corresponding first fixing plate.

FIG. 2D is a front view illustrating that the second fixing plate is connected to the first fixing plate by a spot welding process.

FIG. 3A is a front view illustrating the combination of the first fixing plate, the second fixing plate, the blade assembly and the fixing seat.

3B is a side view illustrating the combination of the first fixing plate, the second fixing plate, the blade assembly and the fixing seat.

Detailed ways

Please refer to FIGS. 1A to C. FIG. 1A is a front view of a shaver 1 according to a preferred embodiment. FIG. 1B is a top view of the razor 1 . FIG. 1C is a right side view of the razor 1 . The shaver 1 of the present invention comprises a fixing seat 12 , three first fixing plates 14 , twelve second fixing plates 16 , three blades 18 , a housing 20 and a handle 22 . The fixing seat 12 , the first fixing plate 14 , the second fixing plate 16 and the blade 18 are accommodated in the casing 20 . The shell 20 is connected with the fixing seat 12 and the handle 22 respectively. Each first fixing plate 14 corresponds to four second fixing plates 16 and one blade 18 . By the way, in FIG. 1B, part of the fixing seat 12, the first fixing plate 14, the second fixing plate 16, and the blade 18 can be seen in the empty part of the housing 20, but in order to avoid complicating the figure, it is shown in FIG. In the illustration, the first fixing plate 14 , the second fixing plate 16 and the blade 18 are omitted to facilitate the illustration.

Please refer to FIGS. 1D and E. FIG. 1D shows a state where the handle 22 is separated from the shell 20 . FIG. 1E is a schematic diagram of the joint between the handle 22 and the housing 20 in a limited rotation manner. As shown in FIG. 1D , the housing 20 has two sliding rails 202 (also shown in dashed lines in FIG. 1E ), and the handle 22 has two corresponding sliding pieces 222 . The sliding rail 202 is an arc-shaped sliding rail with a limited length (see also FIG. 1E ). By inserting the slide piece 222 into the corresponding slide rail 202 , the detachable, limited rotation or slidable connection between the handle 22 and the housing 20 can be achieved. After the handle 22 is engaged with the housing 20, it can be rotated in a limited manner, as shown in FIG. 1E .

Please refer to FIGS. 2A and B. FIG. 2A is a front view showing the combination of the first fixing plate 14 , the second fixing plate 16 and the blade 18 . FIG. 2B is a side view illustrating the combination of the first fixing plate 14 , the second fixing plate 16 and the blade 18 . The hidden outlines of the first fixing plate 14 , the second fixing plate 16 and the blade 18 are shown in dotted lines. As shown in Figure 2A and B, the first fixed plate 14 is connected with the corresponding second fixed plate 16, and a slit is formed between the first fixed plate 14 and the corresponding second fixed plate 16, and the corresponding blade 18 is arranged on in the slit. The first fixing plate 14 defines a plane S thereon, and the second fixing plate 16 has a surface 162 . Plane S is indicated by the centerline in Fig. 2B. An included angle α is formed between the plane S and the surface 162 , so that the first fixing plate 14 and the second fixing plate 16 form a hairpin structure for clamping the blade 18 . In a specific embodiment, the included angle α can be designed to be close to zero, that is, the surface 162 is almost entirely in contact with the blade 18 .

Please also refer to FIG. 2C . FIG. 2C is a schematic view before the blade 18 is assembled to the corresponding first fixing plate 14 and the second fixing plate 16 . The viewing angle of FIG. 2C is the same as that of FIG. 2B. As shown in FIG. 2C , before the blade 18 is clamped into the slit, an angle α' greater than the angle α is formed between the plane S and the surface 162 , so that the width of the opening end of the slit is smaller than the thickness of the blade 18 . Thereby, after the blade 18 is inserted, the second fixing plate 16 can abut against the blade 18 , that is, the first fixing plate 14 and the second fixing plate 16 can clamp the blade 18 effectively. Incidentally, in order to smoothly insert the blade 18 into the slit, the second fixing plate 16 may form chamfered or rounded corners or other structures that facilitate the insertion of the blade 18 at the opening end of the slit.

Please refer to FIGS. 2A and B again, the second fixing plate 16 forms a notch 164 near the junction of the second fixing plate 16 and the first fixing plate 14 . The indentation 164 can prevent the blade 18 from interfering with the rounded corners of the connection between the second fixing plate 16 and the first fixing plate 14 , so that the blade 18 can be firmly fixed in the slit.

Please refer to FIG. 2D . FIG. 2D is a front view illustrating that the second fixing plate 16 is connected to the first fixing plate 14 by a spot welding process. The viewing angle of FIG. 2D is the same as that of FIG. 2A. According to the preferred embodiment, the first fixing plate 14 and the corresponding second fixing plate 16 are integrally formed of metal, and can be made by a stamping process. However, the second fixing plate 16 according to the present invention must also be fixed to the corresponding first fixing plate 14 through a spot welding process, as shown in FIG. 2D . The dotted line in Fig. 2D represents the area of spot welding. Incidentally, since the second fixing plate 16 shown in FIG. 2D is not stamped from the first fixing plate 14 , the portion of the first fixing plate 14 in FIG. 2D corresponding to the second fixing plate 16 has no cutout.

Please refer to FIGS. 3A and B. FIG. 3A is a front view showing the combination of the first fixing plate 14 , the second fixing plate 16 , the blade 18 and the fixing seat 12 . FIG. 3B is a side view showing the combination of the first fixing plate 14 , the second fixing plate 16 , the blade 18 and the fixing seat 12 . The first fixing plate 14 has a first end 142 and a second end 144 . The fixing base 12 has a first supporting portion 122 and a second supporting portion 124 . The first end 142 is connected to the first supporting portion 122 , and the second end 144 is connected to the second supporting portion 124 . In addition, the fixing base 12 further includes three third supporting portions 126 , which are mainly used to support the first fixing plate 14 to enhance the strength of the first fixing plate 14 .

In summary, according to this preferred embodiment, the razor blade of the razor 1 is composed of the first fixed plate 14, the second fixed plate 16 and the blade 18, and the first fixed plate 14 and the second fixed plate Plate 16 is all made of metal, and its structural strength and fatigue resistance are far stronger than conventional simple blades and general engineering plastics. Therefore, the razor 1 of the present invention can effectively fix the razor blade without additional components, such as metal wires, so that the razor blade is not easily detached by the beard. In addition, the number of the third supporting parts 126 for enhancing the compressive strength of the razor blade can be reduced, and the volume of the third supporting parts 126 can also be reduced, thereby simplifying the structural design of the fixing seat 12 . Further, the blade 18 can be made by stamping, and the first fixing plate 14 and the second fixing plate 16 can also be integrally formed by stamping metal, and cooperate with the fixed seat 12 with a simplified structure, the razor head of the present invention can be easily Assemble. Further, through automation, the manufacturing cost of the razor head of the present invention can be greatly reduced, and the manufacturing yield can be improved.

Through the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, the intention is to cover various changes and equivalent arrangements within the scope of the claimed patent scope of the present invention. Therefore, the scope of the claimed scope of the present invention should be interpreted in the broadest way based on the above description, so as to cover all possible changes and equivalent arrangements.

Claims (27)

1. A razor blade comprising: a first fixed plate defining a plane thereon; a second fixed plate connected to the first fixed plate, the second fixed plate has a surface substantially parallel to the plane; and A blade is disposed between the surface and the plane. 2. The razor blade according to claim 1, wherein the first fixing plate and the second fixing plate are integrally formed. 3. The razor blade according to claim 1, wherein the second fixing plate is connected to the first fixing plate through a spot welding process. 4. The razor blade as claimed in claim 1, wherein the second fixing plate is tightly against the blade. 5. The razor blade according to claim 1, wherein an angle is formed between the surface and the plane. 6. The razor blade according to claim 1, wherein the first fixing plate and the second fixing plate are made of metal. 7 . The razor blade according to claim 1 , wherein the second fixing plate has a dent, and the dent is located near the connection between the second fixing plate and the first fixing plate. 8. A razor head, comprising: a fixed seat; A first fixing plate, the first fixing plate is connected with the fixing seat, and a plane is defined on the first fixing plate; a second fixed plate connected to the first fixed plate, the second fixed plate has a surface substantially parallel to the plane; and A blade is disposed between the surface and the plane. 9. The razor head according to claim 8, wherein the first fixing plate and the second fixing plate are integrally formed. 10. The razor head as claimed in claim 8, wherein the second fixing plate is connected to the first fixing plate through a spot welding process. 11. The razor head as claimed in claim 8, wherein the second fixing plate is tightly against the blade. 12. The razor head of claim 8, wherein an angle is formed between the surface and the plane. 13. The razor head as claimed in claim 8, wherein the first fixing plate and the second fixing plate are made of metal. 14 . The razor head according to claim 8 , wherein the second fixing plate has a dent, and the dent is located near the connection between the second fixing plate and the first fixing plate. 15. The razor head according to claim 8, wherein the first fixing plate has a first end and a second end, and the first fixing plate connects the first end and the second end to The fixed seat engages. 16 . The razor head according to claim 15 , wherein the fixing base comprises a supporting portion, and the first fixing plate is disposed on the supporting portion. 17. A razor comprising: a fixed seat; A first fixing plate, the first fixing plate is connected with the fixing seat, and a plane is defined on the first fixing plate; a second fixing plate, the second fixing plate is connected to the first fixing plate, the second fixing plate has a surface, and the surface is substantially parallel to the plane; a blade disposed between the surface and the plane; a shell, the shell is engaged with the fixing seat; and A handle is connected with the shell. 18. The razor according to claim 17, wherein the first fixing plate and the second fixing plate are integrally formed. 19. The shaver of claim 17, wherein the second fixing plate is connected to the first fixing plate through a spot welding process. 20. The shaver as claimed in claim 17, wherein the second fixing plate is tightly against the blade. 21. The razor according to claim 17, wherein an angle is formed between the surface and the plane. 22. The razor according to claim 17, wherein the first fixing plate and the second fixing plate are made of metal. 23. The razor according to claim 17, wherein the second fixing plate has a dent, and the dent is located near the connection between the second fixing plate and the first fixing plate. 24. The razor according to claim 17, wherein the first fixing plate has a first end and a second end, and the first fixing plate connects the first end and the second end to the Fixed seat connection. 25. The razor according to claim 24, wherein the fixing base comprises a supporting portion, and the first fixing plate is disposed on the supporting portion. 26. The shaving razor of claim 17, wherein the handle is detachably coupled to the housing. 27. The shaver of claim 17, wherein the handle is slidably or limitedly rotatably engaged to the housing.

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