Callus scraper
The keratin scraper with protruding blades addresses inefficiencies in existing tools by enabling efficient dead skin removal with reduced fatigue and chattering, offering both rough and finishing cuts.
Patent Information
- Application Number
- JP2022079092
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-04-20
- Publication Date
- 2024-12-19
- Estimated Expiration
- 2042-04-20
AI Technical Summary
Existing exfoliating tools with holes in a metal plate are inefficient in removing dead skin due to small inner diameters and right-angle corners, leading to slow removal and increased user fatigue.
A keratin scraper with a plurality of protruding blades, including forward and small sawtooth-shaped blades, is designed to efficiently scrape off dead skin, allowing for both rough and finishing cuts.
The scraper effectively removes dead skin with reduced user fatigue and minimizes chattering, enhancing usability through efficient scraping and finishing capabilities.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a callus scraper having a number of protruding blades formed on the surface of a metal plate. [Background technology]
[0002] Conventionally, products made of molded pumice or granular ceramics, or products made of thin stainless steel plates with protrusions have been used as tools for removing stratum corneum that occurs on human heels, elbows, etc. Also, as shown in JP-A-11-225915 (Patent Document 1) and Utility Model Registration No. 3131031 (Patent Document 2), callus removing tools having cut holes in a plate are known. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-225915 [Patent Document 2] Utility Model Registration No. 3131031 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]
[0004] The callus removal tools disclosed in the above Patent Documents 1 and 2 have holes drilled in a metal plate, and the callus is scraped off at the corners of the circumference of the holes. However, because the inner diameter of the holes is small, only a small amount of callus falls into the holes, and there is a problem that the amount of callus to be scraped off is small and it takes a long time. In addition, because the corners of the inner diameter of the holes for scraping off the callus are formed at almost right angles, the callus cannot be scraped off sufficiently, and moreover, it is necessary to press hard to make the callus fall into the holes, which increases the feeling of fatigue.
[0005] The problem to be solved by the present invention is to provide a callus scraper that can scrape off callus easily and efficiently by using a large number of protruding blades formed on the surface of a metal plate. [Means for solving the problem]
[0006] In order to solve the above problems, the invention described in claim 1 is a callus scraper having a plurality of jetty blades formed on the surface of a metal plate, and the jetty blades have tips facing in one direction. Between a plurality of forward jetty blades having a predetermined height, a small jetty blade having a sawtooth shape with a lower height than the forward jetty blades with a tip facing in the other direction is provided. The gist of the invention is that it is formed in a protruding manner. Effect of the Invention
[0009] According to the present invention, the small jetty blades are formed in a sawtooth shape with a lower height than the forward jetty blades with their tips facing in the other direction, between the multiple forward jetty blades with a predetermined height with their tips facing in one direction, so that when the callus scraper is moved in the forward direction, the callus can be efficiently scraped off in a predetermined rough cutting state. Also, when the callus scraper is moved in the reverse direction, less callus is scraped off by the small jetty blades, so it can be used in two ways for finishing. Furthermore, when using a callus scraper, normally, a chattering phenomenon can occur when it is moved in the reverse direction, but at this time, the amount scraped off by the small jetty blades is small, so the chattering phenomenon can be suppressed and the usability can be improved. [Brief description of the drawings]
[0012] [Figure 1] FIG. 1 is a perspective view showing a callus scraping tool according to the present invention. [Diagram 2] FIG. 4 is a cross-sectional view showing a jetty blade formed on the callus scraper. [Diagram 3] FIG. 2 is a cross-sectional view showing a forward jetty blade and a small jetty blade formed on a callus scraper. [Figure 4] 13(A) and (B) are process explanatory diagrams showing the process of forming a jetty blade. [Diagram 5] 1(A) and (B) are explanatory diagrams showing the state in which callus is scraped off the heel with a callus scraper. [Figure 6] 1(A) and (B) are partial cross-sectional views showing another embodiment of the callus scraper according to the present invention. BEST MODE FOR CARRYING OUT THEINVENTION
[0013] A callus scraper having a plurality of jetty blades formed on the surface of a metal plate has the jetty blades each having a tip facing in one direction. Between a plurality of forward jetty blades having a predetermined height, a small jetty blade having a sawtooth shape with a lower height than the forward jetty blades with a tip facing in the other direction is provided. It forms a protrusion.
[0014] The callus scraper according to the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a callus scraper 1, and the metal plate 2 used in this callus scraper 1 is made of stainless steel, copper, or aluminum. This metal plate 2 is formed in a rectangular shape, and the thickness is preferably 0.5 mm to 2.0 mm, and these metal plates 2 may be plated. Furthermore, the callus scraper 11 is formed in a shape that takes into consideration the ease of use of the user, and a grip portion 1a is formed on one end side in the longitudinal direction. A plurality of jetty blades 3 are formed at equal intervals on the surface of the metal plate 2 excluding the grip portion 1a.
[0015] As shown in Figs. 2 and 3, the forward jetty blade 3a and the small jetty blade 3b are formed on the surface of the metal plate 2 in a direction perpendicular to the longitudinal direction. As shown in Fig. 3, the forward jetty blade 3a has a height H1 formed at a predetermined height of approximately 0.2 mm to 0.5 mm from the surface of the metal plate 2. This forward jetty blade 3a is formed in a sawtooth shape, and its tip is directed in one direction to the left in the figure. On the other hand, the small jetty blade 3b is formed at a height H2 lower than the height H1 of the forward jetty blade 3a, and is formed at a predetermined height of approximately 0.1 mm to 0.4 mm from the surface of the metal plate 2. This small jetty blade 3b is also formed in a sawtooth shape, and its tip is directed to the right in the figure.
[0016] These forward jetty blades 3a and small jetty blades 3b are formed by the process shown in Fig. 4. The metal plate 2, which is the base material of the keratin scraper 1, is selected from stainless steel, copper, and aluminum with anodized treatment. The thickness of the metal plate 2 is appropriately set to 0.5 mm to 2.0 mm. The metal plate 2 is placed on a processing device (not shown). Then, as shown in Fig. 4, the forward jetty blades 3a are formed upright at equal intervals by a digging tool 5.
[0017] The excavation tool 5 has a blade 5a formed at the tip of the bottom side perpendicular to the direction of movement, and its width is set to the width of the forward jetty blade 3a forming the keratin scraper 1. The excavation tool 5 is inclined at a predetermined angle θ1 so that the rear end side is higher than one side of the metal material 1, and is attached to a driving device (not shown). This inclination angle θ1 is set to approximately 10 degrees to 60 degrees. The angle θ2 between the sliding surface 5b of the excavation tool 5 and the direction of movement is set to approximately 30 degrees to 80 degrees.
[0018] First, as shown in Fig. 4(A), the blade 5a of the excavation tool 5 is brought into contact with the metal plate 2 at a position where the forward jetty blade 3a is to be formed, and then the excavation tool 5 is driven by the driving device to enter the metal plate 2 in the direction of the arrow at a predetermined angle θ1, so that the blade 5a of the excavation tool 5 bites into one side of the metal plate 2, forming the forward jetty blade 3a. The height H1 of this forward jetty blade 3a is preferably about 0.1 mm to 0.5 mm.
[0019] Next, the excavation tool 5 is returned to the origin position, and the metal plate 2 is advanced to the position where the next forward jetty blade 3a is to be formed, and the excavation tool 5 is abutted at that position. Then, as shown in FIG. 4(B), the excavation tool 5 is inserted into the metal plate 2 in the direction of the arrow at a predetermined angle θ1 by the driving device, and the blade portion 5a of the excavation tool 5 bites into one side of the metal plate 2, so that the next forward jetty blade 3b is formed at a position spaced apart from the forward jetty blade 3a formed by FIG. 4(A). The two forward jetty blades 3b formed in this way are spaced apart at equal intervals of approximately 3 mm to 10 mm. After that, the excavation tool 5 is returned to the origin position and the metal plate 2 is advanced until it reaches the length at which the forward jetty blade 3a is to be formed.
[0020] After that, the metal plate 2 on which the multiple forward jetty blades 3a are formed is turned 180 degrees. Then, between the forward jetty blades 3a formed by the above-mentioned process, the reverse-direction small jetty blades 3b are formed to stand up, as shown in Fig. 4(C). The process of forming these small jetty blades 3b is the same as the process shown in Fig. 4(A)(B) described above, but the differences from the forward jetty blades 3a described above are the height and orientation.
[0021] That is, after the excavation tool 5 is abutted at the position where the small jetty blade 3b is to be formed, as shown in Fig. 4(C), the excavation tool 5 is inserted into the metal plate 2 in the direction of the arrow at a predetermined angle θ1 by the driving device, and the blade portion 5a of the excavation tool 5 is made to bite into the surface of the metal plate 2, so that the small jetty blade 3b is formed between the forward jetty blades 3a formed by Fig. 4(A). This small jetty blade 3b is formed at a predetermined height H2 of approximately 0.1mm to 0.4mm from the surface of the metal plate 2, and the tip of the small jetty blade 3b faces in the opposite direction to the forward jetty blade 3a. After that, the excavation tool 5 is returned to the origin and the metal plate 2 is advanced until it reaches the length where the small jetty blade 3b is to be formed.
[0022] The multiple forward jetty blades 3a and multiple small jetty blades 3b formed as described above have a cross section formed in a sawtooth shape. This is because, as shown in the figure, the inclination angle of the side surface that is in sliding contact with the sliding surface 5b of the excavation tool 5 relative to the surface of the metal plate 2 is formed at an obtuse angle, and the inclination angle of the other side surface is formed at an acute angle.
[0023] This callus scraper 1 can be used in two ways: rough scraping and finish scraping. For example, when the callus on a person's heel 6 is large, it is first used for rough scraping. In this case, as shown in FIG. 5(A), the callus scraper 1 is pressed against the heel 6 and moved so that the tip side of the forward jetty blade 3a is in the direction of travel indicated by the arrow. At this time, since the tip of the forward jetty blade 3a is formed at an acute angle, the tip of the forward jetty blade 3a can dig into the callus on the heel 6 and scrape off a large amount. By moving the callus scraper 1 while changing its position, the callus on the heel 6 is gradually scraped off.
[0024] After rough scraping is completed, or if there is only a small amount of callus on the heel 6, finish scraping is performed. For finish scraping, as shown in FIG. 5(B), the callus scraper 1 is lightly pressed against the heel 6 and moved so that the tip of the small jetty blade 3b is in the direction of travel indicated by the arrow. At this time, the height of the small jetty blade 3b is small, so it does not bite into the callus of the heel 6 to an excessively small extent, making finish scraping possible. When finish scraping is performed in this manner, the tip of the forward jetty blade 3a faces in the opposite direction, so even if it is pressed against the heel 6 and moved, the tip simply slides and does not scrape off the callus. Therefore, no chattering occurs.
[0025] FIG. 6 shows a cuticle scraper 1 according to the present invention. other 6 shows an embodiment. Fig. 6(A) shows an example in which a reverse direction jetty blade 3c, whose tip is oriented in the opposite direction to the forward direction jetty blade 3a, is formed between a plurality of forward direction jetty blades 3a formed upright on the surface of a metal plate 2. When using the callus scraper 1 having the forward direction jetty blade 3a and the reverse direction jetty blade 3c formed in a protruding manner in this way to scrape off callus that has developed on the heel 6 of a person shown in Fig. 5, the callus scraper 1 is pressed against the heel 6 and moved so that the tip side of the forward direction jetty blade 3a is in the direction of travel, whereby the callus is scraped off. After that, by moving the callus scraper 1 in the reverse direction while pressing it against the heel 6, the callus scraper 1 is scraped off by the reverse direction jetty blade 3c. In this way, by moving the callus scraper 1 back and forth, the callus on the heel 6 can be scraped off efficiently.
[0026] FIG. 6(B) shows an example in which multiple forward jetty blades 3a are formed upright on the surface of the metal plate 2. When using the callus scraper 1 with multiple identical forward jetty blades 3a formed in this way to scrape off callus that has developed on a person's heel 6, the callus scraper 1 is pressed against the heel 6 and moved so that the tip side of the forward jetty blade 3a faces the direction of travel, thereby scraping off the callus. The callus scraper 1 is then pulled back, and the callus scraper 1 is pressed against the heel 6 again and moved, thereby scraping off the callus. In this way, when only multiple forward jetty blades 3a are formed upright, even if the callus scraper 1 is pulled back while still pressed against the heel 6, the forward jetty blade 3a slides over the callus, so no chattering occurs.
[0027] The present invention described above is not limited to these embodiments and can be modified in various ways without departing from the scope of the present invention. In the above-mentioned embodiments, an example was shown in which multiple jetty blades were formed to protrude at equal intervals on the surface of a metal plate, but they may be formed partially at unequal intervals depending on the usability of the callus scraper. In addition, multiple small jetty blades may be formed upright between multiple forward jetty blades. Furthermore, the multiple jetty blades may be formed at a predetermined angle with respect to the longitudinal direction of the callus scraper. In addition, the multiple forward jetty blades and the multiple small jetty blades may be formed to have partially different heights. [Explanation of symbols]
[0028] 1. Callus scraper 2 metal plate 3 Jetty Blade 3a Forward jetty blade 3b Small jetty blade
Claims
[Claim 1] A callus scraper having a plurality of jetty blades formed on the surface of a metal plate, The callus scraper is characterized in that the jetty blade has a small jetty blade formed in a sawtooth shape with a lower height than the forward jetty blades with their tips facing in the other direction protruding between a plurality of forward jetty blades with a predetermined height with their tips facing in one direction.
Citation Information
Patent Citations
Polishing tool
JP1983132656U
Toilet room with counter
JP1999225915A
Method and apparatus for exfoliating skin using densely packed microstructures
JP2005502414A
skin stratum corneum remover
JP3131031U
Foot care device
US20030005532A1
