JPWO2008139997A1 - Surface processing method for solid materials - Google Patents

Abstract

When the center line average roughness of the surface of a metal or resin plate is approximated to the center line average roughness of a cloth such as silk cloth, cotton cloth, linen cloth, polyester cloth, etc. The heat transfer to the finger on the surface of the board is similar to the heat transfer to the finger on the surface when the finger is slid and moved against a cloth such as silk cloth, cotton cloth, linen cloth, or polyester cloth. By forming a plurality of grooves having a rough bottom, a cloth tactile surface composed of a plurality of grooves and a plurality of ribs is formed. Thereby, the touch of cloth, such as silk cloth, cotton cloth, linen cloth, and polyester cloth, can be given to the cloth touch surface formed on the surface of a solid material such as metal or resin.

Description

  The present invention relates to a method for processing a surface of a solid material, and in particular, the surface of a solid material having a cloth tactile surface that gives a tactile feel of the cloth by processing the surface of a solid material having good workability such as metal or resin. It relates to a processing method.

  Conventionally, as a method of surface treatment of this kind of solid material, unevenness is formed on the surface of a handle such as a cup made of a metal material so as to suppress slippage, or heat conduction on the surface of a can juice or the like is suppressed. For this reason, it has been proposed to roughen the surface, or to roughen the surface in order to improve slippage on the surface of the desk top plate.

  In the surface processing method of the solid material described above, even if the surface processing is performed, the metal material retains the tactile sensation as a metal, and the resin material retains the tactile sensation as a resin. It was not a tactile sensation. If the tactile sensation on the surface of the metal or resin can be used as the tactile sensation of the cloth, the touch can be improved and the image of a cold image or a deteriorated product can be wiped off.

  The surface processing method of the solid material of the present invention is mainly intended to give the touch of the cloth to the surface of the solid material such as metal or resin.

  In order to achieve the above-mentioned main object, the solid material surface processing method of the present invention employs the following means.

The surface processing method of the solid material of the present invention,
A surface treatment method for a solid material, wherein the surface of a solid material having good workability such as metal or resin is processed to make the surface a cloth-tactile surface that gives the fabric a tactile sensation,
The average value of the center line average roughness of the cloth touch-sensitive surface with respect to the average value of the center line average roughness of the surface of the target cloth, which is the target cloth, is within a predetermined range and touches the cloth touch-sensitive surface so as to slide. The cloth so that the difference between the time change of the temperature of the touch part when moved and the time change of the temperature of the touch part when moved so as to slide on the surface of the target cloth is within a predetermined value range. Forming a tactile surface,
It is characterized by that.

  In the surface processing method for a solid material according to the present invention, the tactile sensation of the cloth on the surface of the solid material having good workability such as metal or resin with respect to the average value of the center line average roughness of the surface of the target cloth which is the target cloth. The average value of the center line average roughness of the fabric touch-sensitive surface is within a predetermined range and touches the surface of the target fabric when the touch-sensitive surface is moved to slide. The cloth tactile surface is formed so that the difference from the time change of the temperature of the touch part when it is moved to slide is within a predetermined value range. That is, the center line average roughness of the surface of the solid material and the center line average roughness of the surface of the target cloth are matched within a predetermined ratio, and heat transfer to the touch portion on the surface of the solid material and the touch on the surface of the target cloth are performed. By matching the heat transfer to the part within a predetermined range, it is possible to give the touch of the surface of the target cloth to the touch of the cloth formed on the solid material.

  Here, in the surface processing method of the solid material of the present invention, examples of the target fabric include natural fibers such as silk, cotton and hemp, and fabrics woven with synthetic fibers such as polyester, and examples of the solid material include aluminum and iron. , Metals such as stainless steel, copper and zinc, and various resins such as acrylic resin, vinyl chloride resin and polyethylene resin.

  Moreover, in the surface processing method of the solid material of the present invention, the average value of the center line average roughness of the cloth touch surface of the solid material with respect to the average value of the center line average roughness of the surface of the target cloth is 0.8 to 1.2. In the range of 0.9 to 1.1, more preferably in the range of 0.9 to 1.1. The difference from the time change of the temperature of the touch part when it is moved so as to be touched and slipped should be within the range of 0.1 ° C./second, more preferably within the range of 0.05 ° C./second. Can do. The allowable range is determined by the sensitivity of the touch part.

  Furthermore, in the surface processing method for a solid material according to the present invention, the cloth tactile surface of the solid material is formed with a groove having a predetermined width of 0.99 mm at a predetermined depth of 0.2 mm for every predetermined interval of 1 mm or less. It can also be. In this case, the cloth tactile sensation surface may be formed by forming a groove having a depth of 0.1 mm and a width of 0.45 mm at intervals of 0.5 mm. In this case, the bottom of the groove may be formed as a rough surface. In this way, by adjusting the roughness of the bottom of the groove, it is possible to adjust the average value of the center line average roughness of the cloth tactile surface of the solid material.

  Moreover, in the surface processing method of a solid material of the present invention, the cloth touch-sensitive surface has a touch part temperature of up to 0.8 ° C. until 3 seconds elapses after touching when the touch-sensitive surface is moved to touch and slide. It can also be formed so that it falls within the range. In this way, the touch of the cloth can be given to the cloth touch surface.

  In the surface processing method for a solid material according to the present invention, the cloth tactile surface has a plurality of first values different from an average value of the center line average roughness of the surface of the target cloth as an average value of the center line average roughness. Of the first surface and a plurality of second surfaces having a second value different from the first value as an average value of the center line average roughness, and the first surface It is also possible to form the first value and the second value according to the area ratio of the surface and the second surface so that the value is within the predetermined range. This is based on the sensitivity of a person's finger. In this case, the average value of the center line average roughness of the surface having the larger area of the first surface and the second surface is 1.0 of the average value of the center line average roughness of the surface of the target cloth. It may be formed so as to be in the range of double to 7.0 times. The first surface and the second surface have a width of 1.5 mm or more and 8.5 mm or less, and a sum of widths of the first surface and the second surface is 10 mm or less. It can also be formed. This is usually because the minimum width that can detect the roughness of the surface with a human finger is about 1.5 mm, or the maximum width that can detect the roughness of the surface with a human finger (contact This is based on the fact that the width of the surface is about 10 mm.

  In the surface processing method for a solid material according to the present invention, the cloth tactile sensation surface has a plurality of values different from the average value of the center line average roughness of the surface of the target cloth as the average value of the center line average roughness. It is also possible that the surfaces are mixed and formed so that a value obtained by weighted averaging the plurality of values with the area ratio of the plurality of surfaces as a weight is within the predetermined range.

  Such a surface processing method of the solid material of the present invention includes a solid material such as a frying pan, a knife, a saw, a hammer, a handle, a door knob, a handle of a cup, a pulling portion of a drawer, a grip portion of a writing instrument, an elbow rest of a chair, etc. It can be used in the case where at least a part of the surface is a cloth tactile surface. If it carries out like this, even if it forms a contact part with a metal or resin, the touch of cloth can be given to a contact part.

It is a block diagram which shows the outline of a structure of the aluminum plate 20 in which the fabric tactile surface 30 which gives the silk tactile sense as one Example of this invention was formed. It is an expanded sectional view which expands and shows the section of cloth touch feeling surface 30 of aluminum plate 20 of an example. An example of the distribution of the center line average roughness and the average value of the surface along the rib 32 and the groove 34 of the cloth touch-sensitive surface 30 of the aluminum plate 20 of the example, the surface of the cloth made of silk or polyester, and the surface of the comparative example is shown. It is explanatory drawing. The calculation result which calculated an example of the time change of the temperature of the surface of the finger | toe when it moved so that a finger might touch each of the cloth touch-sensitive surface 30 of an Example, the surface of an aluminum flat plate, and the surface of the cloth by silk or cotton It is explanatory drawing which shows. Explanation showing a calculation result of calculating an example of a temporal change in temperature of the finger surface when the finger touches each of the cloth touch-sensitive surface 30 of the embodiment, the surface of the aluminum flat plate, and the surface of the cloth made of silk or cotton. FIG. An example of the temporal change in temperature of the finger surface was calculated when the finger touched each of the cloth touch surface formed on the stainless steel plate, the surface of the stainless steel plate, and the surface of the cloth made of silk or cotton. It is explanatory drawing which shows a calculation result. Calculation that calculates an example of the time change of the temperature of the finger surface when the finger touches each of the cloth tactile surface formed on the copper plate, the surface of the copper flat plate, and the surface of the cloth made of silk or cotton. It is explanatory drawing which shows a result. Changes in temperature of the finger surface over time when the finger touches and slides on the surface of the cloth formed on the acrylic resin plate, the surface of the flat plate of acrylic resin, and the surface of the cloth made of silk or cotton. It is explanatory drawing which shows the calculation result which calculated an example. The temperature of the finger surface when the finger touches each of the cloth touch surface formed on the vinyl chloride resin plate, the flat surface of the vinyl chloride resin plate, and the surface of the cloth made of silk or cotton. It is explanatory drawing which shows the calculation result which calculated an example of the change. It is a block diagram which shows the outline of a structure of the iron plate 40 in which the cloth touch-sensitive surface 50 which gives the silk touch feeling as a modification is formed.

  Next, the best mode for carrying out the present invention will be described using examples. FIG. 1 is a configuration diagram showing an outline of the configuration of an aluminum plate 20 on which a cloth touch-sensitive surface 30 giving silk touch is formed as one embodiment of the present invention, and FIG. 2 is a fabric touch surface of the aluminum plate 20 of the embodiment. It is an expanded sectional view which expands and shows the cross section of 30. In the aluminum plate 20 of the embodiment, a plurality of grooves 34 are formed on a plate member formed to a thickness of 2 mm so that the width is 0.45 mm, the depth is 0.10 mm, and the bottom is roughened every 0.50 mm. By forming, the cloth touch-sensitive surface 30 in which a plurality of grooves 34 having a rough bottom and a plurality of ribs 32 having a smooth top are arranged. When a finger is applied to the cloth touch-sensitive surface 30 of the aluminum plate 20 and moved so as to slide along the rib 32 or the groove 34, the finger is given a touch similar to a silk cloth. As described above, the cloth touch-sensitive surface 30 of the aluminum plate 20 gives a silk cloth touch because the center line average roughness of the surface along the ribs 32 and the grooves 34 of the cloth touch surface 30 is the center line average roughness of the silk cloth surface. This is based on the fact that the heat transfer to the finger on the cloth tactile surface 30 is similar to the heat transfer to the finger on the surface of the silk cloth.

  FIG. 3 shows the distribution of the center line average roughness in the direction along the ribs 32 and the grooves 34 of the cloth touch-sensitive surface 30 of the aluminum plate 20 of the example, and the center line average roughness of the surface of the cloth made of silk or polyester and the surface of the comparative example. FIG. 4 is an explanatory diagram showing an example of the average value, and FIG. 4 shows a case where the finger touches each of the cloth touch-sensitive surface 30 of the embodiment, the surface of the aluminum flat plate, and the surface of the cloth made of silk or cotton so as to slide. FIG. 5 is an explanatory view showing a calculation result of calculating an example of a temporal change in temperature of the finger surface, and FIG. 5 shows a finger touching each surface of the cloth touch surface 30 of the embodiment and the cloth of aluminum flat plate and silk or cotton. It is explanatory drawing which shows the calculation result which computed an example of the time change of the temperature of the surface of the finger when it stops still. In FIG. 3, Comparative Example 1 is the distribution and average value of the center line average roughness in the direction perpendicular to the ribs 32 and grooves 34 of the cloth-tactile surface 30 of the aluminum plate 20 of the example, and Comparative Example 2 is aluminum. By forming a plurality of grooves on the plate every 1.00 mm so that the width is 0.45 mm, the depth is 0.10 mm, and the bottom is a rough surface, the bottom is rough and the width is 0.55 mm. The distribution of the center line average roughness and the average value in the direction along the ribs and grooves on the cloth tactile surface in which a plurality of ribs having a smooth surface are arranged, and Comparative Example 3 is a rib on the cloth tactile surface of Comparative Example 2. And the distribution and average value of the center line average roughness in the direction perpendicular to the groove. In FIG. 3, the box indicates the average value of the center line average roughness, and the “I” mark indicates the distribution. The two “I” marks in the bucks of the example and the comparative example 2 indicate that the left “I” mark indicates the distribution of the center line average roughness at the bottom of the groove, and the right “I” mark indicates the top of the rib. The distribution of centerline average roughness is shown. 4 and 5, the solid line indicates the case of the fabric touch surface 30 of the aluminum plate 20 of the embodiment, the broken line indicates the case of silk cloth, the alternate long and short dash line indicates the case of cotton cloth, and the two-dot chain line indicates the case of an aluminum flat plate Indicates. Here, the “centerline average roughness” can be obtained by folding a roughness curve in a certain direction from the centerline and dividing the area obtained by the roughness curve and the centerline by the length of the centerline. If the roughness curve is f (x) and the length in a certain direction is L, the center line is expressed by the following equation (1), and the center line average roughness Ra is expressed by the equation (2).

Center line = (1 / L) ・ ∫f (x) dt (1)
Ra = (1 / L) ・ ∫ | f (x) −centerline | dx (2)

  As shown in FIG. 3, the cloth touch-sensitive surface 30 of the aluminum plate 20 of the example has an average value of the center line average roughness in the direction along the rib 32 and the groove 34, and the center line average roughness of the surface of the silk cloth or the polyester cloth. Approximate the average value. For this reason, if it moves to the direction along the rib 32 or the groove | channel 34 so that a finger may touch and touch the cloth touch-sensitive surface 30 of an Example, the touch of the cloth touch-sensitive surface 30 will become a touch similar to a silk cloth or a polyester cloth. On the other hand, the average value of the center line average roughness in the direction perpendicular to the ribs 32 and the grooves 34 of the cloth touch-sensitive surface 30 is, as shown in Comparative Example 1, the center line average roughness of the surface of the silk cloth or the polyester cloth. Since it is larger than the average value, the tactile sensation of the cloth tactile surface 30 is slightly different from the tactile sensation similar to a silk cloth or a polyester cloth when the finger touches the cloth tactile surface 30 and moves in a direction perpendicular to the ribs 32 and the grooves 34. It becomes a tactile sensation. As shown in Comparative Example 2 and Comparative Example 3, the average value of the center line average roughness of the surface of the silk cloth or the polyester cloth is greatly different from the average value of the center line average roughness by changing the interval between the rib and the groove. If this is the case, the tactile sensation on the surface of the cloth will be completely different from the tactile sensation similar to silk cloth or polyester cloth. In order to give a silky or polyester cloth tactile feel to the cloth tactile surface 30, the average value of the centerline average roughness in the direction touched by the finger of the cloth tactile surface 30 is the average of the centerline average roughness of the surface of the silk cloth or polyester cloth. The ratio of the values may be in the range of 0.8 to 1.2, and more preferably in the range of 0.9 to 1.1. Within these ranges, a sufficiently close tactile sensation can be provided in consideration of variations in surface roughness of the fabric and finger sensitivity.

  As shown in FIG. 4, the time change of the temperature of the finger surface when the finger is applied to the cloth touch surface 30 of the aluminum plate 20 of the embodiment and moved so as to slide along the rib 32 or the groove 34 is as follows. It is closest to the time change in temperature of the finger surface when the finger is placed on the surface of the silk cloth and slid. For this reason, the tactile sensation of the cloth tactile surface 30 of the aluminum plate 20 of the embodiment is closer to the tactile sensation of the silk cloth than that of the cotton cloth. At this time, the temporal change in temperature of the finger surface when the finger touches the cloth touch surface 30 and the finger surface slides, and the finger surface when the finger touches and slides on the surface of the target cloth. The difference from the time change of the temperature may be in the range of 0.1 ° C./second, and more preferably in the range of 0.05 ° C./second. Within this range, a sufficiently approximated tactile sensation can be given in consideration of the sensitivity to changes in the temperature of the finger. In addition, by adjusting the distance between the rib 32 and the groove 34 of the cloth touch surface 30 and the roughness of the bottom of the groove 34 so that heat transfer to the finger on the cloth touch surface 30 of the aluminum plate 20 of the embodiment is slightly reduced. Furthermore, the touch of the cloth touch surface 30 can be made closer to the touch of a silk cloth. As shown in FIG. 5, when the finger is placed on the target surface and stopped, the heat transfer of the material itself becomes dominant, so that the tactile sensation of the cloth tactile sensation surface 30 does not approximate the tactile sensation of the silk cloth.

  Next, let us consider the tactile sensation when the cloth tactile surface 30 is formed on plate materials of different materials. FIGS. 6 to 9 show a cloth touch surface for each material and a material for each material when a cloth touch surface having the same shape as the cloth touch surface 30 of the embodiment is formed on a flat plate of stainless steel, copper, acrylic resin, or vinyl chloride resin. The calculation result which calculated an example of the time change of the temperature of the surface of a finger | toe when a finger | toe is made to slide on each surface of a flat plate and the cloth by silk or cotton will be shown. As can be seen from FIGS. 6, 7 and 9, the time change of the temperature of the finger surface when the finger is slid and moved against the cloth touch surface formed on a stainless steel plate, copper plate, or vinyl chloride resin plate is It approximates the time change of the temperature of the finger surface when the finger is slid with the finger on the surface of the silk cloth. For this reason, the cloth tactile surface formed on the stainless steel plate, the copper plate, or the vinyl chloride resin plate gives the touch of silk. On the other hand, as shown in FIG. 8, the time change of the temperature of the surface of the finger when the finger is slid and applied to the cloth tactile surface formed on the acrylic resin plate is applied to the surface of the cotton cloth. It approximates the time change of the temperature of the finger surface when it is slid. For this reason, the cloth tactile surface formed on the acrylic resin plate gives a cotton cloth tactile feel. As described above, the change in the tactile sensation of the cloth with respect to the cloth tactile surface formed by the same pattern due to the different materials is based on the difference in heat transfer from the material to the finger. Therefore, by adjusting the distance between the ribs and grooves on the cloth-sensitive surface, or by adjusting the roughness of the bottom of the groove, the cloth can be approximated to the cloth intended for heat transfer to the finger on the surface. The tactile sensation of the target cloth can be given to the tactile sensation surface. As shown in FIGS. 4 and 6 to 9, the temperature of the surface of the finger when the cloth touch-sensitive surface is moved so as to be slid by applying the finger to the cloth touch-sensitive surface as long as the cloth touch-sensitive surface is simply given. It is sufficient that the temperature of the finger surface is within a range of 0.8 ° C. until 3 seconds elapses after the finger is applied as the time change.

  Like the surface treatment applied to the cloth touch surface 30 of the aluminum plate 20 of the embodiment described above, the center line average roughness of the surface along the rib 32 and the groove 34 of the cloth touch surface 30 is set to silk cloth, cotton cloth, linen cloth. , Approximate the center line average roughness of the surface of the cloth such as polyester cloth, and approximate the heat transfer to the finger on the cloth tactile surface 30 to the heat transfer to the finger on the surface of the cloth such as silk cloth, cotton cloth, linen cloth or polyester cloth. Thus, the touch feeling of the cloth such as silk cloth, cotton cloth, linen cloth, polyester cloth, etc. can be given to the cloth touch feeling surface 30. In addition, even if the material of the plate material forming the cloth tactile surface is different, the center line average roughness of the surface along the rib or groove is adjusted by adjusting the distance between the rib and groove on the cloth tactile surface and the roughness of the bottom of the groove. Approximates the center line average roughness of the surface of the cloth such as silk cloth, cotton cloth, linen cloth, polyester cloth and heat transfer to the finger on the cloth touch surface on the cloth surface such as silk cloth, cotton cloth, linen cloth, polyester cloth By approximating the heat transfer to the finger, it is possible to give the touch of the cloth such as silk cloth, cotton cloth, linen cloth or polyester cloth to the touch surface.

  As a material of the plate material forming the cloth touch surface 30, various metal materials such as iron and zinc may be used in addition to the above-described aluminum, stainless steel, copper, and polyethylene resin in addition to acrylic resin and vinyl chloride resin. It is good also as various resin materials, such as. In addition, there are various contact parts such as a handle such as a frying pan, a kitchen knife, a saw, a hammer, a door knob, a handle of a cup, a pulling part of a drawer, a grip part of a writing instrument, and an elbow rest of a chair. It is effective for. In this case, it is not necessary to form the cloth touch surface on all of the contact portions, and the cloth touch surface may be formed on at least a part.

  The bottom surface of the fabric touch-sensitive surface 30 of the aluminum plate 20 of the embodiment is formed by forming a plurality of grooves 34 so that the width is 0.45 mm, the depth is 0.10 mm, and the bottom is a rough surface every 0.50 mm. A plurality of rough grooves 34 and a plurality of ribs 32 having a smooth top surface are arranged, but the center line average roughness of the cloth tactile surface is the surface of a cloth such as silk cloth, cotton cloth, linen cloth, polyester cloth or the like. For example, for every predetermined interval within 1 mm, the bottom becomes a rough surface with a predetermined width within 0.99 mm and a predetermined depth within 0.2 mm. By forming a plurality of grooves, a plurality of grooves having a rough bottom surface and a plurality of ribs having a smooth top surface may be arranged. In this case, what is necessary is just to adjust the space | interval of a rib and a groove | channel, and the roughness of the bottom part of a groove | channel according not only to the material of the fiber which weaves cloth but the thread | yarn thickness and the weaving method. Further, not only the ribs and grooves may be repeatedly formed in one direction, but the grooves and ribs may be repeatedly formed in different directions.

  In the aluminum plate 20 of the embodiment, the center line average roughness of the surface along the ribs 32 and the grooves 34 of the cloth touch-sensitive surface 30 is set to the center line average roughness of the surface of the cloth such as silk cloth, cotton cloth, linen cloth, and polyester cloth. By approximating and approximating the heat transfer to the finger on the cloth tactile surface 30 to the heat transfer to the finger on the surface of the cloth such as silk cloth, cotton cloth, linen cloth, polyester cloth, etc., the cloth tactile surface 30 is made of silk cloth, cotton cloth, linen cloth, A cloth such as a polyester cloth is provided, but instead of the ribs 32 and grooves 34, the center line average roughness of the surfaces of two surfaces having different roughness is set to a cloth such as silk cloth, cotton cloth, linen cloth, polyester cloth, etc. Approximate the centerline average roughness of the surface of the fabric and approximate the heat transfer to the finger on the fabric touch surface to the heat transfer to the finger on the surface of the cloth such as silk cloth, cotton cloth, linen cloth, polyester cloth, etc. It makes silk or cotton cloth fabric feel surface, linen, or as providing tactile fabric such as polyester fabric. For example, as illustrated in FIG. 10, as the cloth touch surface 50 of the surface of the iron plate 40 with a thickness of 2 mm, the width is 8 mm for every 10 mm and the first surface 52 has a center line average roughness of 12 μm. A second surface 54 having a center line average roughness of 0.5 μm at 2 mm may be formed. In this example, when a finger is applied to the cloth tactile surface 50 and moved to slide in the direction of the arrow in the figure, a tactile sensation similar to silk is obtained. In this case, since the area ratio between the first surface 52 and the second surface 54 is 8: 2, if the center line average roughness of each surface is appropriately divided by this area ratio, it becomes 9.7 μm, and silk or cotton To the center line average roughness (about 10 μm). As described above, the tactile sensation of the cloth can be obtained even by using two different roughness surfaces based on the fact that the tactile sensation of the finger is considered to detect the average roughness. Therefore, it is considered that the range of the value obtained by apportioning the center line average roughness of each surface according to the area ratio is preferably about 0.8 to 1.2 times the center line average roughness of the target cloth. In addition, the main surface, that is, the surface having the larger area (the first surface 52 in the cloth tactile surface 50 in FIG. 10) becomes somewhat dominant with respect to the tactile sensation of the finger. It is considered that the thickness is preferably about 1.0 to 7.0 times the center line average roughness of the target cloth. Furthermore, the minimum width that can detect the surface roughness with a human finger is about 1.5 mm, and the maximum width that can detect the surface roughness with a human finger (the width of the contact surface). ) Is about 10 mm, the two surfaces having different surface roughness (the first surface 52 and the second surface 54 in the cloth tactile surface 50 in FIG. 10) are both 1.5 mm or more and 8. It is considered preferable that the width is 5 mm or less and the sum of the widths of the two surfaces (the first surface 52 and the second surface 54) is 10 mm or less. Further, it is not necessary to dispose the first surface 52 and the second surface 54 in a striped manner like the cloth touch surface 50 in FIG. 10, and the area ratio between the first surface 52 and the second surface 54 is not necessary. If the ratio is 8: 2, the first surface 52 and the second surface 54 may be arranged in a lattice pattern. In the modification, the cloth tactile surface 50 is configured by the two surfaces 52 and 54 having different roughnesses. However, the cloth tactile surface is configured by mixing three or more surfaces having different roughnesses. Also good. In this case, the weighted average of the center line average roughness of each surface using the area ratio of each surface as a weight can be about 0.8 to 1.2 times the center line average roughness of the target cloth. That's fine. Of course, the width of each surface is preferably 1.5 mm or more and the sum of the widths of each surface is preferably 10 mm or less.

  The best mode for carrying out the present invention has been described with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the gist of the present invention. Of course, it can be implemented in the form.

  The present invention can be used in industries for forming articles by metal or resin.

Claims (11)

A surface treatment method for a solid material, wherein the surface of a solid material having good workability such as metal or resin is processed to make the surface a cloth-tactile surface that gives the fabric a tactile sensation,
The average value of the center line average roughness of the cloth touch-sensitive surface with respect to the average value of the center line average roughness of the surface of the target cloth, which is the target cloth, is within a predetermined range and touches the cloth touch-sensitive surface so as to slide. The cloth so that the difference between the time change of the temperature of the touch part when moved and the time change of the temperature of the touch part when moved so as to slide on the surface of the target cloth is within a predetermined value range. Forming a tactile surface,
A surface processing method for a solid material, characterized in that A surface processing method for a solid material according to claim 1,
The predetermined range is a range of 0.8 to 1.2,
The predetermined value is 0.1 ° C./second.
Surface processing method for solid materials.   3. The surface processing method for a solid material according to claim 1, wherein the cloth tactile sensation surface is formed with grooves having a predetermined depth of 0.2 mm or less and a predetermined width of 0.99 mm or less at predetermined intervals of 1 mm or less.   4. The surface treatment method for a solid material according to claim 3, wherein the cloth tactile sensation surface is formed with grooves having a depth of 0.1 mm and a width of 0.45 mm at intervals of 0.5 mm.   The surface processing method of the solid material of Claim 3 or 4 formed by forming the bottom part of the said groove | channel as a rough surface.   2. The cloth touch-sensitive surface is formed so that the temperature of the touch part decreases within a range up to 0.8 ° C. until 3 seconds elapses after touching when the touch-sensitive surface is moved so as to slide. The surface processing method of the solid material in any one of 5 thru | or 5.   The cloth touch-sensitive surface has a plurality of first surfaces and a center line average roughness having a first value different from an average value of a center line average roughness of a surface of the target cloth as an average value of a center line average roughness. A plurality of second surfaces having a second value different from the first value as an average value of the first surface and an area ratio between the first surface and the second surface The surface processing method for a solid material according to claim 1, wherein the first value and the second value are formed so that a value obtained by dividing the first value and the second value is within the predetermined range.   The average value of the centerline average roughness of the surface having the larger area of the first surface and the second surface is 1.0 to 7 times the average value of the centerline average roughness of the surface of the target cloth. The solid material surface processing method according to claim 7, wherein the solid material is formed so as to be within a range of 0.0 times.   The first surface and the second surface are formed to have a width of 1.5 mm or more and 8.5 mm or less, and a sum of widths of the first surface and the second surface is 10 mm or less. The surface processing method of the solid material of Claim 7 or 8.   The cloth touch-sensitive surface is a mixture of a plurality of surfaces having a plurality of values different from the average value of the center line average roughness of the surface of the target cloth as the average value of the center line average roughness, The surface processing method for a solid material according to claim 1 or 2, wherein a value obtained by weighted averaging the plurality of values with the area ratio of the surface is within the predetermined range.   As the solid material, at least a part of the surface with respect to a contact portion such as a handle such as a frying pan, a kitchen knife, a saw, a hammer, a door knob, a handle of a cup, a pulling portion of a drawer, a grip portion of a writing instrument, an elbow rest of a chair, etc. The surface processing method of the solid raw material in any one of Claim 1 thru | or 10 used as a cloth tactile surface.

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