CN101311001B - Friction body, writing instrument and writing instrument set - Google Patents
Friction body, writing instrument and writing instrument set Download PDFInfo
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- CN101311001B CN101311001B CN 200810099706 CN200810099706A CN101311001B CN 101311001 B CN101311001 B CN 101311001B CN 200810099706 CN200810099706 CN 200810099706 CN 200810099706 A CN200810099706 A CN 200810099706A CN 101311001 B CN101311001 B CN 101311001B
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Abstract
The invention provides a friction body through which any people, regardless of man, woman, old and young peoples, can utilize frictional heat to reliably and easily discolor a thermochromic image or handwriting. The friction body (7) of the invention rubs the thermochromic image or handwriting formed on a paper surface by use of thermochromic ink to thermally discolor the thermochromic image or handwriting by frictional heat resultant from rubbing. A thermal conductivity of the friction body (7) is set to be within 0.05 W/(m.K) to 50 W/(m.K). A friction portion of the friction body (7) is set to be within the range from 0.2 to 1.0 with respect to the paper surface. The friction body (7) is mounted on a portion of a handwriting tool which is internally provided with the thermochromic ink and capable of ejecting the thermochromic ink. In addition, the handwriting tool which is internally provided with the thermochromic ink and capable of ejecting the thermochromic ink is combined with the friction body to form a handwriting tool assembly.
Description
Technical field
The present invention relates to a kind of friction piece that can utilize pattern that frictional heat makes thermochromism or person's handwriting thermo-color, have the writing implement of above-mentioned friction piece and the writing implement set that above-mentioned friction piece and writing implement are combined.
Background technology
Current, for example in document 1, document 2, a kind of friction piece has been proposed, it has pattern or the person's handwriting that will use the reversible thermochromic ink and form, and utilizing frictional heat is the elasticity of the 2nd state from the 1st state variable color.
Patent documentation 1: JP 2004-148744 communique
Patent documentation 2: JP 2006-123324 communique
Summary of the invention
Also have in the following areas room for improvement in above-mentioned existing friction piece, that is, anyone of men and women, old and young no matter all can be reliably and easily utilize by manual fricative frictional heat, makes pattern or the person's handwriting thermo-color of thermochromism.
Above-mentioned existing friction piece, when using friction piece that the pattern of thermochromism or person's handwriting are rubbed, in the less situation of the speed that is applied to the power on the friction piece or friction piece is moved (for example, in the situation that old man, women, child etc. use), might can't make reliably thermo-color of the pattern of thermochromism or person's handwriting.In addition, in the existing friction piece situation that the contact area between friction piece and the paper is set greatlyr in the time will rubbing, might can't make reliably thermo-color of the pattern of thermochromism or person's handwriting.
The present invention for address the above problem a little and propose, it provides a kind of friction piece, no matter it make any pattern or person's handwriting thermo-color that can utilize per capita frictional heat reliably and easily to make thermochromism of men and women, old and young.In addition, the invention provides a kind of writing implement that make men and women, old and young no matter any can utilize the friction piece of pattern that frictional heat reliably and easily makes thermochromism or person's handwriting thermo-color per capita that has, and the writing implement set that above-mentioned friction piece and writing implement are combined.
The present inventor is conceived to the thermal conductivity of the friction part of friction piece, repeatedly make great efforts the result that studies, discovery is set in the particular range by the thermal conductivity with the friction part of friction piece, can utilize the frictional heat of friction piece to make reliably pattern or the person's handwriting thermo-color of thermochromism.
And, the present inventor is conceived to the coefficient of friction between friction piece and the paper, the load that applies to friction piece in when friction, the contact area of friction piece when the translational speed of friction piece and friction during in friction, repeatedly make great efforts the result that studies, discovery is by satisfying following relational expression, just can be reliably and easily utilize the frictional heat of friction piece to make pattern or the person's handwriting thermo-color of thermochromism.
(1) the 1st invention of the present invention is a kind of friction piece, its pattern or person's handwriting to the thermochromism that use thermochromism ink forms on paper rubs, the frictional heat of utilizing produce this moment makes pattern or the person's handwriting thermo-color of above-mentioned thermochromism, it is characterized in that, above-mentioned friction piece is made of soft synthetic resin, and, an end that contacts with paper of above-mentioned friction piece has the curved profile shape, the friction part of above-mentioned friction piece is set in respect to the coefficient of friction of paper in 0.2～1.0 the scope, the thermal conductivity of the friction part of above-mentioned friction piece is set in the scope of 0.05W/ (mK)～50W/ (mK).
The friction piece of above-mentioned the 1st invention, in the scope that is set in 0.05W/ (mK)～50W/ (mK), can so that anyone of men and women, old and young no matter all can utilize by manual fricative frictional heat, reliably and easily make pattern or the person's handwriting thermo-color of thermochromism.
And, by the friction part of above-mentioned friction piece being set in respect to the coefficient of friction of paper in 0.2～1.0 the scope, can further reliably and easily make pattern or the person's handwriting thermo-color of thermochromism.
The friction part of above-mentioned friction piece with respect to the coefficient of friction of paper less than 0.2 situation under, even rub with larger load, also can't make easily thermo-color of the pattern of thermochromism or person's handwriting.On the other hand, the friction part of above-mentioned friction piece with respect to the coefficient of friction of paper greater than 1.0 situation under, when friction and the frictional resistance between the paper excessive, might be difficult to manually rub smoothly, perhaps paper damages.
In addition, above-mentioned coefficient of friction (coefficient of sliding friction), use “ Xin East science (strain) " the surface measurements machine made: HEIDON-14D; divide at 100mm/, under the condition of load 500g (4.9N); to (old JIS P3201: with the good quality paper that chemical pulp 100% is manufactured paper with pulp as raw material, range of weighing is 40～157g/m at writing paper A
2, whiteness is more than or equal to 75%) on coefficient of friction (frictional force/load) when rubbing measure.
In the thermal conductivity of the friction part of above-mentioned friction piece, surpass in 50 watts of every meter Kelvins' (W/ (mK)) the situation, for example old man or child might can't utilize the frictional heat of friction piece to make reliably pattern or the person's handwriting thermo-color of thermochromism.On the other hand, in the situation of thermal conductivity less than 0.05 watt of every meter Kelvin (W/ (mK)) of the friction part of above-mentioned friction piece, might damage owing to overheated friction piece or the paper of making.
(2) main points of the 2nd invention of the present invention are, in above-mentioned the 1st invention, the thermal conductivity of the friction part of above-mentioned friction piece are set in the scope of 0.05W/ (mK)～20W/ (mK).
The friction piece of above-mentioned the 2nd invention, in the scope that is set in 0.05W/ (mK)～20W/ (mK), can so that anyone of men and women, old and young no matter all can utilize by manual fricative frictional heat, reliably and easily make pattern or the person's handwriting thermo-color of thermochromism.
In the thermal conductivity of the friction part of above-mentioned friction piece, surpass in 20 watts of every meter Kelvins' (W/ (mK)) the situation, for example old man or child might can't utilize the frictional heat of friction piece to make reliably pattern or the person's handwriting thermo-color of thermochromism.On the other hand, in the situation of thermal conductivity less than 0.05 watt of every meter Kelvin (W/ (mK)) of the friction part of above-mentioned friction piece, might damage owing to overheated friction piece or the paper of making.
(3) main points of the 3rd invention of the present invention are, in above-mentioned the 2nd invention, the thermal conductivity of the friction part of above-mentioned friction piece are set in the scope of 0.05W/ (mK)～10W/ (mK).
The friction piece of above-mentioned the 3rd invention, in the scope that is set in 0.05W/ (mK)～10W/ (mK), can so that anyone of men and women, old and young no matter all can utilize by manual fricative frictional heat, reliably and easily make pattern or the person's handwriting thermo-color of thermochromism.
Thermal conductivity at the friction part of above-mentioned friction piece surpasses in 10 watts of every meter Kelvins' (W/ (mK)) the situation, and for example old man or child might can't utilize the frictional heat of friction piece, make reliably pattern or the person's handwriting thermo-color of thermochromism.On the other hand, in the situation of thermal conductivity less than 0.05 watt of every meter Kelvin (W/ (mK)) of the friction part of above-mentioned friction piece, might damage owing to overheated friction piece or the paper of making.
In above-mentioned the 1st, the 2nd, the 3rd invention, the AUTO Λ (HC-072) that above-mentioned thermal conductivity uses " Ying Hong essence Machine " to make is at plus-pressure 250Kg/m
2, 5 ℃ of lower mensuration of 35 ℃ of high temperature plate temperatures, cryopanel temperature.In addition, the unit of above-mentioned thermal conductivity is watt every meter Kelvin (W/ (mK)).In addition, in the 1st, the 2nd, the 3rd invention, the friction part of so-called friction piece, refer to paper on the pattern of thermochromism or person's handwriting contact and produce the part of frictional heat.
(4) main points of the 4th invention of the present invention are, in above-mentioned the 1st invention, be μ making the coefficient of friction between above-mentioned friction piece and the paper, when making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting, the load that friction piece applies vertical direction on paper is W (N), when making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting, the speed that friction piece moves on paper is V (m/s), when making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting, the contact area that friction piece contacts with paper is A (cm
2) time, above-mentioned coefficientoffrictionμ, above-mentioned load W, above-mentioned speed V, and above-mentioned contact area A satisfy
30.4≥(μ×W×V)/A≥12.3
Relation.
According to the friction piece of above-mentioned the 4th invention, even in the less situation of the speed that is applied to the power on the friction piece or friction piece is moved, also can be reliably and easily utilize frictional heat to make pattern or the person's handwriting thermo-color of thermochromism.
(5) main points of the 5th invention of the present invention are, in above-mentioned the 4th invention, above-mentioned load W selects in the scope of 0.9N～10N, and above-mentioned contact area A is from 0.005cm
2～0.3cm
2Scope in select.
(6) main points of the 6th invention of the present invention are, in above-mentioned the 4th invention, in the situation that manually to carry out abrasive action, above-mentioned speed V selects in the scope of 0.1m/s～1.0m/s.In the present invention, in the situation that manually to carry out abrasive action, the speed V that preferred friction piece moves on paper selects arbitrarily in the scope of 0.1m/s～0.5m/s.
(7) main points of the 7th invention of the present invention are, in above-mentioned the 1st invention, the load that friction piece applies vertical direction on paper when making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting is 4.9N, and friction piece is on paper in the mobile situation of speed for 0.5m/s when making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting, the coefficientoffrictionμ between above-mentioned friction piece and the paper, contact area A (the cm that friction piece contacts with paper when utilizing the pattern of the thermochromism on the above-mentioned friction piece friction paper or person's handwriting
2), satisfy
15.5≥μ/A≥5.5
Relation.
According to the friction piece of above-mentioned the 7th invention, though when friction friction piece and paper between the larger situation of contact area under, also can utilize frictional heat reliably and easily to make pattern or the person's handwriting thermo-color of thermochromism.
(8) main points of the 8th invention of the present invention are, in above-mentioned the 7th invention, above-mentioned contact area A is from 0.005cm
2～0.3cm
2Scope in select.
(9) main points of the 9th invention of the present invention are, the friction piece peace with any one invention in the above-mentioned the 1st to the 8th is installed on the part of the writing implement that is built-in with the thermochromism ink and can sprays the thermochromism ink.
The writing implement of above-mentioned the 9th invention, by pattern or the person's handwriting of the thermochromism that will be formed by writing implement, utilization is installed in the friction of the friction piece on the part of writing implement, can be reliably and thermo-color easily.
(10) main points of the 10th invention of the present invention are, in above-mentioned the 9th invention, in the writing implement main body, be built-in with the thermochromism ink, front end in above-mentioned writing implement main body has the nib that is made of the ball-point pen tip that can spray above-mentioned thermochromism ink, has friction piece in the rear end of above-mentioned writing implement main body.
(11) main points of the 11st invention of the present invention are, in above-mentioned the 9th invention, in the writing implement main body, be built-in with the thermochromism ink, front end in above-mentioned writing implement main body has the nib that is made of the ball-point pen tip that can spray above-mentioned thermochromism ink, nib side in above-mentioned writing implement main body has the cap for brush that can freely plug, and has friction piece at the top of the above-mentioned cap for brush.
(12) main points of the 12nd invention of the present invention are, in above-mentioned the 9th invention, the writing implement main body has: ink barrel, and it is accommodated the thermochromism ink and makes the above-mentioned nib can be mounted thereto movably forward and backward; And valve gear, by rearward being pressed, nib makes this valve gear opening, above-mentioned nib is made of fiber process body or the porous plastid that can spray above-mentioned thermochromism ink, nib side in above-mentioned writing implement main body has the cap for brush that can freely plug, and has friction piece in the rear end of above-mentioned writing implement main body or the top of the above-mentioned cap for brush.
(13) main points of the 13rd invention of the present invention are, in above-mentioned the 9th invention, the writing implement main body has: ink adsorbent, its heat of immersion discolouration ink; And nib, it is connected with above-mentioned ink adsorbent, and can spray above-mentioned thermochromism ink, above-mentioned nib is made of fiber process body or porous plastid, above-mentioned ink adsorbent is made of the parts with continuous pore, nib side in above-mentioned writing implement main body has the cap for brush that can freely plug, and has friction piece in the rear end of above-mentioned writing implement main body or the top of the above-mentioned cap for brush.
(14) main points of the 14th invention of the present invention are, in above-mentioned the 9th invention, the writing implement main body has: by the nib that ball-point pen tip consists of, it can spray the thermochromism ink; Ink barrel, it accommodates the thermochromism ink; And ink retention body, it is configured between above-mentioned nib and the above-mentioned ink barrel, the ink that temporary transient maintenance is overflowed along with the pressure rise in the above-mentioned ink barrel, nib side in above-mentioned writing implement main body has the cap for brush that can freely plug, and has friction piece in the rear end of above-mentioned writing implement main body or the top of the above-mentioned cap for brush.
(15) main points of the 15th invention of the present invention are, a kind of writing implement set, and it is comprised of the friction piece of any one invention in the above-mentioned the 1st to the 8th and the writing implement that is built-in with the thermochromism ink and can sprays the thermochromism ink.
The writing implement set of above-mentioned the 15th invention, pattern or person's handwriting by the thermochromism that will be formed by writing implement utilize the friction of the friction piece that makes up with writing implement, can be reliably and thermo-color easily.
Friction piece
In the present invention, the material of friction piece can be any one of glass, metal, stone material, resin etc., but the synthetic resin such as preference such as silicone resin, styrene resin (co-polymer of the co-polymer of styrene and butadiene, styrene and ethene and butadiene), fluorine-type resin, chloroprene resin, butyronitrile resin, polyester resin, ethylene propylene diene rubber (EPDM), polypropylene, polyethylene.
The structure of above-mentioned friction piece is preferably, and is arranged on to be built-in with the thermochromism ink and to make this thermochromism ink can be on the part of the writing implement of nib ejection.Make above-mentioned friction piece be arranged on structure on the part of above-mentioned writing implement, friction piece is arranged on the structure on the nib opposition side of writing implement main body or friction piece is arranged on structure on the top of the cap for brush that the nib side of writing implement main body can freely plug etc. such as enumerating.Above-mentioned friction piece also can be built-in with the thermochromism ink and can make this thermochromism ink by the writing implement combination of nib ejection, form writing implement set.In addition, above-mentioned friction piece can be the structure that directly grips its outer peripheral face when friction, also can be the structure that grips friction piece via support.
Writing implement
The nib of above-mentioned writing implement, the nib body that consists of such as the handwriting that can enumerate ball-point pen tip, consisted of by fiber process body or Porous processome, the extrusion-molded body by synthetic resin with axial capillary passage, the metallic plate handwriting processed that front end has slit and writing brush nib body etc.Above-mentioned writing implement can be enumerated internal direct and receive hold the direct-liquid type of thermochromism ink or make the thermochromism ink be immersed in cotton tubular type in the ink adsorbent etc.
The unit of load W, contact area A
In addition, in the present invention, the unit of above-mentioned load W is that the unit of newton (N), above-mentioned speed V is metre per second (m/s) (m/s), and the unit of above-mentioned contact area A is square centimeter (cm
2).
Coefficientoffrictionμ
Above-mentioned coefficient of friction, use “ Xin East science (strain) " the surface measurements machine HEIDON-14D that makes; divide at 100mm/, under the condition of load 500g (4.9N); to (old JIS P3201: with the good quality paper that chemical pulp 100% is manufactured paper with pulp as raw material, basis weight range is 40～157g/m at writing paper A
2, whiteness is more than or equal to 75%) on coefficient of friction (frictional force/load) when rubbing measure.
The load W of friction piece
In the present invention, preferred above-mentioned friction piece is manually to carry out abrasive action, in the situation that above-mentioned manually to carry out abrasive action, the load W that preferred above-mentioned friction piece applies on paper selects arbitrarily in the scope of 0.9N～10N.
The speed V of friction piece
In the present invention, in the situation that manually to carry out abrasive action, the speed V that preferred friction piece moves on paper selects arbitrarily in the scope (the more preferably scope of 0.1m/s～0.5m/s) of 0.1m/s～1.0m/s.
The contact area A of friction piece
In the present invention, the contact area A on preferred friction piece and the paper is from 0.005cm
2～0.3cm
2Scope (more preferably 0.01cm
2～0.3cm
2Scope) in select arbitrarily.
The thermochromism ink
In addition, in the present invention, preferred above-mentioned thermochromism ink is the reversible thermochromic ink.Above-mentioned reversible thermochromic ink can be separately or and consist of with following all kinds: add the thermal discoloration type, it utilizes and heats and from the color status colour killing; Color memory maintenance, its change ground memory in the specified temp zone keeps color status or colour killing state; And heating colour developing type, it develops the color from colour killing state utilization heating, returns to the colour killing state from color status utilization cooling.
In addition, the colored materials that contains in the above-mentioned reversible thermochromic ink, the current known reversible thermochromic micro-capsule pigment of preferred use, it comprises the reversible thermochromic composition in micro-capsule inside, and this reversible thermochromic composition contains following three kinds of neccessary compositions at least: (A) electron donability colour generation organic compound, (B) electronics are subjected to the capacitive compound, and (C) determine aforementioned both reaction medium of color reaction occurrence temperature.
In the present invention, the preferred color memory maintenance thermochromism ink that uses, it as shown in Figure 8, to since variations in temperature cause the curve shape drawn of the variation of colour saturation be, in the situation that temperature is risen from the low temperature side compared with the discoloring temperature zone with make on the contrary its situation about descending from the high temperature side of comparing with the discoloring temperature zone under, carry out variable color along different routes, be less than or equal to complete colour temp (t
1) low-temperature region in color status or more than or equal to complete colour killing temperature (t
4) high-temperature area in the colour killing state, can be at specified temp zone (t
2～t
3Between temperature province (actual two-phase keep temperature province)) in memory keep.In Fig. 8, Δ H illustrates the temperature width (being lagging width) of expression delay degree.If the value of Δ H is less, then can only there be a state in two states before and after the variable color.If the value of Δ H is larger, then easily keep each state of variable color front and back.
In the present invention, above-mentioned thermochromism ink carries out the temperature of variable color by the frictional heat of friction piece, is set as 25 ℃～95 ℃ (preferred 36 ℃～95 ℃).That is, in the present invention, use above-mentioned high temperature side color transition point (complete colour killing temperature (t
4)) be set in the scope of 25 ℃～95 ℃ (preferred 36 ℃～90 ℃), with above-mentioned low temperature side color transition point (complete colour temp (t
1)) be set in the scope of-30 ℃～+ 20 ℃ (preferred-30 ℃～+ 10 ℃) effectively.Thus, can effectively bring into play the effect that remains on the color that presents in the usual state (daily life temperature zone), can utilize the frictional heat that is produced by friction piece to make pattern or the easily variable color of person's handwriting that is produced by the reversible thermochromic ink simultaneously.
Above-mentioned reversible thermochromic micro-capsule pigment, the average bits of preferred particle diameter more preferably is positioned at the scope of 1～4 μ m in the scope of 0.5～5.0 μ m.When mean particle diameter surpasses 5.0 μ m, from the outflow reduction in the capillary gap of ball-point pen tip or Porous handwriting, if mean particle diameter less than 0.5 μ m then is difficult to show the colour rendering of high concentration.
Above-mentioned reversible thermochromic micro-capsule pigment can with respect to the ink composition total amount, mix with 2～50 % by weight (preferred 3～40 % by weight, more preferably 4～30 % by weight).If less than 2 % by weight then the concentration that develops the color is insufficient if surpass 50 % by weight then ink flows out the property reduction, hinder writing property.
To be changed to colourless ink effective from coloured as utilizing frictional heat for above-mentioned thermochromism ink.Thus, the coloured person's handwriting that is consisted of by the thermochromism ink, can utilize the fricative frictional heat by friction piece to make above-mentioned colourlessization of person's handwriting, by this colourless state by writing surface on again write, can form the coloured person's handwriting that is consisted of by the thermochromism ink.This can bring as the person's handwriting that uses the rubber cancellation to be made of pencil-lead, then in this sensation of again being write by writing surface to the user.Specifically, above-mentioned thermochromism ink is as being changed to colourless state by heating from colored state, and being colored state by cooling from colourless state variation, the reversible thermochromic ink is effective.In addition, thermochromism ink of the present invention also can use following ink: by mixing the colouring agent (dyestuff, pigment etc.) of non-thermochromism in micro-capsule or in the ink, thus the frictional heat of utilization and be changed to the color different from this color from coloured.
The effect of invention
According to friction piece of the present invention, no matter can make any pattern or person's handwriting thermo-color that reliably and easily makes per capita thermochromism of men and women, old and young.
Description of drawings
Fig. 1 is the profilograph of embodiments of the present invention 1.
Fig. 2 is the profilograph of embodiments of the present invention 2.
Fig. 3 is the profilograph of embodiments of the present invention 3.
Fig. 4 is the profilograph of embodiments of the present invention 4.
Fig. 5 is the profilograph of embodiments of the present invention 5.
Fig. 6 is the profilograph of the writing implement of embodiments of the present invention 6.
Fig. 7 is the profilograph of the friction piece of embodiments of the present invention 6.
Fig. 8 is the key diagram that expression adds the color shifting properties of thermal discoloration type reversible thermochromic ink.
The specific embodiment
(embodiment 1)
Embodiments of the present invention 1 (with reference to Fig. 1) are described.
The writing implement 1 that the friction piece 7 of the rear end that present embodiment is the cap for brush 6 that can freely plug by writing implement main body 2, in the nib side of writing implement main body 2, be installed in writing implement main body 2 consists of.In above-mentioned writing implement main body 2, be built-in with thermochromism ink 4, from nib 3 ejection thermochromism inks 4.By the nib 3 of above-mentioned writing implement main body 2 and contacting of paper, obtain pattern or the person's handwriting of thermochromism on paper.By using the pattern or the person's handwriting that form on 7 pairs of above-mentioned papers of friction piece to rub, can make pattern or the person's handwriting thermo-color of above-mentioned thermochromism.
Above-mentioned writing implement main body 2 is made of following part: nib 3, and it is made of ball-point pen tip; Pencil holder 22, it is at fastening this nib 3 of front end; Ink receiving cartridge 23, it is at fastening this pencil holder 22 of front end; Breechblock 24, it is installed in the open rearward end section of above-mentioned ink receiving cartridge 23, has at passage; And beam barrel 21, above-mentioned ink receiving cartridge 23 is accommodated in its inside.Accommodate thermochromism ink 4 and follow body 5 in above-mentioned ink receiving cartridge 23, this follows the rear end that body 5 is configured in this thermochromism ink 4, and advances along with the consumption of this thermochromism ink 4.
The rotatable front end of nib 3 clasp ball.In above-mentioned nib 3, accommodate spring body 31 (helical spring), utilize above-mentioned spring body 31 with above-mentioned ball pretension forwards, with above-mentioned ball face contact on the inside front end edge inner surface of nib 3.
In the cap for brush 6, accommodate the nib seal member 61 that is consisted of by soft material, when the cap for brush 6 is installed in the nib side, nib 3 and above-mentioned nib seal member 61 close contacts, nib 3 is sealed.
Above-mentioned beam barrel 21 is made of the front axle 21a that mutually screws togather and rear axle 21b.Nib 3 protrudes to the outside from the front aperture of above-mentioned beam barrel 21 (front axle 21a).On the rear stomidium of above-mentioned beam barrel 21 (rear axle 21b), the friction piece 7 that is made of soft synthetic resin is installed.Form outwards projection 71 at the outer surface of above-mentioned friction piece 7, form inwardly protruding 21c at the inner surface of the rear stomidium of beam barrel 21, by above-mentioned outside protruding 71 and above-mentioned inwardly protruding 21c cross over and lock, can avoid friction piece 7 to come off from rear stomidium.
In addition, in the present embodiment, the thermal conductivity of the friction part of above-mentioned friction piece 7 is set in the scope of 0.05W/ (mK)～1.0W/ (mK), and the friction part of above-mentioned friction piece 7 is with respect to the coefficient of friction of paper, is set in 0.2～1.0 the scope.
(embodiment 2)
Embodiments of the present invention 2 (with reference to Fig. 2) are described.
The writing implement 1 that the friction piece 7 at the top that present embodiment is the cap for brush 6 that can freely plug by writing implement main body 2, in the nib side of writing implement main body 2, be installed in the cap for brush 6 consists of.In above-mentioned writing implement main body 2, be built-in with thermochromism ink 4, from nib 3 ejection thermochromism inks 4.By the nib 3 of above-mentioned writing implement main body 2 and contacting of paper, obtain pattern or the person's handwriting of thermochromism on paper.By using 7 pairs of pattern or person's handwritings that form at above-mentioned paper of friction piece to rub, can make pattern or the person's handwriting thermo-color of above-mentioned thermochromism.
Above-mentioned writing implement main body 2 is made of following part: nib 3, and it is made of ball-point pen tip; Pencil holder 22, it is at fastening this nib 3 of front end; Ink receiving cartridge 23, it is at fastening this pencil holder 22 of front end; Breechblock 24, it is installed in the open rearward end section of above-mentioned ink receiving cartridge 23, has passage; And beam barrel 21, it accommodates above-mentioned ink receiving cartridge 23 in inside.In above-mentioned ink receiving cartridge 23, to accommodate thermochromism ink 4 and follow body 5, this follows the rear end that body 5 is configured in this thermochromism ink 4, and advances along with the consumption of this thermochromism ink 4.Above-mentioned beam barrel 21 is made of the front axle 21a that mutually screws togather and rear axle 21b.Nib 3 protrudes to the outside from the front aperture of above-mentioned beam barrel 21 (front axle 21a).
The rotatable front end of nib 3 clasp ball.In above-mentioned nib 3, accommodate spring body 31 (helical spring), utilize above-mentioned spring body 31 with above-mentioned ball pretension forwards, with above-mentioned ball face contact on the inside front end edge inner surface of nib 3.
In the cap for brush 6, accommodate the nib seal member 61 that is consisted of by soft material, when the cap for brush 6 is installed in the nib side, nib 3 and above-mentioned nib seal member 61 close contacts, nib 3 is sealed.On the installing hole at the top of the above-mentioned cap for brush 6, the friction piece 7 that is made of soft synthetic resin is installed.
In addition, in the present embodiment, the thermal conductivity of the friction part of above-mentioned friction piece 7 is set in the scope of 0.05W/ (mK)～1.0W/ (mK), and the friction part of above-mentioned friction piece 7 is with respect to the coefficient of friction of paper, is set in 0.2～1.0 the scope.
(embodiment 3)
Embodiments of the present invention 3 (with reference to Fig. 3) are described.
The writing implement 1 that the friction piece 7 of the rear end that present embodiment is the cap for brush 6 that can freely plug by writing implement main body 2, in the nib side of writing implement main body 2, be installed in writing implement main body 2 consists of.In above-mentioned writing implement main body 2, be built-in with thermochromism ink 4, from nib 3 ejection thermochromism inks 4.By the nib 3 of above-mentioned writing implement main body 2 and contacting of paper, obtain pattern or the person's handwriting of thermochromism on paper.By using 7 pairs of pattern or person's handwritings that form at above-mentioned paper of friction piece to rub, can make pattern or the person's handwriting thermo-color of above-mentioned thermochromism.
Above-mentioned writing implement main body 2 is made of following part: nib 3, and it is made of fiber process body or porous plastid; Ink tube 25, it can be installed in above-mentioned nib 3 on the leading section movably forward and backward; Valve gear 26 makes this valve gear opening by nib 3 is rearward pressed; Beam barrel 21, it keeps the rear portion of above-mentioned ink tube 25; And friction piece 7, it is installed on the rearward end of above-mentioned beam barrel 21, is made of soft synthetic resin.In above-mentioned ink tube 25, accommodate mixing component 41.
In addition, in the present embodiment, the thermal conductivity of the friction part of above-mentioned friction piece 7 is set in the scope of 0.05W/ (mK)～1.0W/ (mK), and the friction part of above-mentioned friction piece 7 is with respect to the coefficient of friction of paper, is set in 0.2～1.0 the scope.
(embodiment 4)
Embodiments of the present invention 4 (with reference to Fig. 4) are described.
The writing implement 1 that the friction piece 7 of the rear end that present embodiment is the cap for brush 6 that can freely plug by writing implement main body 2, in the nib side of writing implement main body 2, be installed in writing implement main body 2 consists of.In above-mentioned writing implement main body 2, be built-in with the thermochromism ink, from nib 3 ejection aforementioned hot discolouration inks.By the nib 3 of above-mentioned writing implement main body 2 and contacting of paper, obtain pattern or the person's handwriting of thermochromism on paper.By using 7 pairs of pattern or person's handwritings that form at above-mentioned paper of friction piece to rub, can make pattern or the person's handwriting thermo-color of above-mentioned thermochromism.
Above-mentioned writing implement main body 2 is made of following part: nib 3, and it is made of fiber process body or porous plastid; Pencil holder 22, it keeps above-mentioned nib 3; Beam barrel 21, its leading section have above-mentioned pencil holder 22, and inside has ink adsorbent 27; And friction piece 7, it is installed on the rearward end of above-mentioned beam barrel 21, is made of soft synthetic resin.Above-mentioned ink adsorbent 27 consists of heat of immersion discolouration ink in above-mentioned ink adsorbent 27 by the parts with continuous pore (porous materials such as, fiber process body, Porous air bladder).The leading section of above-mentioned ink adsorbent 27 is connected with the rearward end of nib 3.Above-mentioned friction piece 7 coats by chimeric on the outer surface of the rearward end of beam barrel 21, or by dual-color forming and one-body molded.
In addition, in the present embodiment, the thermal conductivity of the friction part of above-mentioned friction piece 7 is set in the scope of 0.05W/ (mK)～1.0W/ (mK), and the friction part of above-mentioned friction piece 7 is with respect to the coefficient of friction of paper, is set in 0.2～1.0 the scope.
(embodiment 5)
Embodiments of the present invention 5 (with reference to Fig. 5) are described.
Present embodiment is that the front end in writing implement main body 2 has nib 3 and has the writing implement 1 of friction piece 7 in the rear end of writing implement main body 2.In above-mentioned writing implement main body 2, accommodate thermochromism ink 4, from the above-mentioned thermochromism ink 4 of nib 3 ejections.By the nib 3 of above-mentioned writing implement main body 2 and contacting of paper, obtain pattern or the person's handwriting of thermochromism on paper.By using 7 pairs of pattern or person's handwritings that form at above-mentioned paper of friction piece to rub, can make pattern or the person's handwriting thermo-color of above-mentioned thermochromism.
Above-mentioned writing implement main body 2 is made of following part: nib 3, and it is made of refill for ball-point pen; Pencil holder 22, it keeps above-mentioned nib 3; Ink retention body 28, it has above-mentioned pencil holder 22 at leading section; And ink tube 25, it has above-mentioned ink retention body 28 at leading section, and directly stores thermochromism ink 4 in inside.Above-mentioned ink retention body 28 is configured between above-mentioned nib 3 and the ink tube 25, is the temporary transient parts that keep the ink that overflows along with the pressure rises in the ink tube 25, adopts the parts of toothrow shape here.Above-mentioned friction piece 7 is made of soft synthetic resin, is installed on the rear stomidium of ink tube 25.
In addition, in the present embodiment, the thermal conductivity of the friction part of above-mentioned friction piece 7 is set in the scope of 0.05W/ (mK)～1.0W/ (mK), and the friction part of above-mentioned friction piece 7 is with respect to the coefficient of friction of paper, is set in 0.2～1.0 the scope.
(embodiment 6)
Embodiments of the present invention 6 (with reference to Fig. 6 and Fig. 7) are described.
Present embodiment is the writing implement set that is made of writing implement 1 and friction piece 7.
In above-mentioned writing implement 1, be built-in with thermochromism ink 4, from nib 3 ejection thermochromism inks 4.By the nib 3 of above-mentioned writing implement 1 and contacting of paper, obtain pattern or the person's handwriting of thermochromism on paper.By using 7 pairs of pattern or person's handwritings that form at above-mentioned paper of friction piece to rub, can make its thermo-color.
Above-mentioned writing implement 1 is made of following part: writing implement main body 2, and it has nib 3 and accommodates thermochromism ink 4 in inside at front end; And the cap for brush 6, its nib side in above-mentioned writing implement main body 2 can freely plug.
Above-mentioned writing implement main body 2 constitutes to be had: nib 3, and it is made of ball-point pen tip; Pencil holder 22, it is at fastening this nib 3 of front end; Ink receiving cartridge 23, it is at fastening this pencil holder 22 of front end; Breechblock 24, it is installed in the open rearward end section of above-mentioned ink receiving cartridge 23, has passage; And beam barrel 21, it accommodates above-mentioned ink receiving cartridge 23 in inside.Accommodate thermochromism ink 4 and follow body 5 in above-mentioned ink receiving cartridge 23, this follows the rear end that body 5 is configured in this thermochromism ink 4, and advances along with the consumption of this thermochromism ink 4.Above-mentioned beam barrel 21 is made of the front axle 21a that mutually screws togather and rear axle 21b.Nib 3 protrudes to the outside from the front aperture of above-mentioned beam barrel 21 (front axle 21a).
The rotatable front end of nib 3 clasp ball.In above-mentioned nib 3, accommodate spring body 31 (helical spring), utilize above-mentioned spring body 31 with above-mentioned ball pretension forwards, with above-mentioned ball face contact on the inside front end edge inner surface of nib 3.
In the cap for brush 6, accommodate the nib seal member 61 that is consisted of by soft material, when the cap for brush 6 is installed in the nib side, nib 3 and above-mentioned nib seal member 61 close contacts, nib 3 is sealed.
Above-mentioned friction piece 7 has outside protruding 71 at the outer surface that is made of soft synthetic resin.Above-mentioned friction piece 7 is installed on the leading section of friction piece support 8.Above-mentioned friction piece support 8 is tubular, forms inwardly protruding 81 at the leading section inner surface.By above-mentioned inwardly protruding 81 and outwards projection 71 leap lockings, prevent that friction piece 7 from coming off.
In addition, in the present embodiment, the thermal conductivity of the friction part of above-mentioned friction piece 7 is set in the scope of 0.05W/ (mK)～1.0W/ (mK), and the friction part of above-mentioned friction piece 7 is with respect to the coefficient of friction of paper, is set in 0.2～1.0 the scope.
Embodiment
The fixedly contact area A (cm that contacts on friction piece and the paper during friction piece mobile fixed speed V (m/s) and friction on paper when friction piece applied constantly acting load W (N), the friction of vertical direction on paper when coefficientoffrictionμ, friction between friction piece and the paper at random selected in table 1 expression
2), (result of the test of the value of μ * W * V)/A and the thermochromism when under this condition the person's handwriting of the thermochromism that formed by the thermochromism ink being rubbed is shown.In this test, use the altogether 4 kinds of friction pieces that consisted of by styrene resin (2 kinds), silicone resin, polypropylene.In this test, in 25 ℃ environment temperature, use multiple friction piece to being that the thermochromism person's handwriting that 45 ℃ thermochromism ink forms rubs by discoloring temperature (high temperature side color transition point).
In addition, the evaluation of the thermochromism in the table is as follows.
◎: the complete variable color of person's handwriting
Zero: the basic variable color of person's handwriting
△: person's handwriting is variable color slightly
*: person's handwriting does not have variable color fully
Table 1
| Experiment No. | μ | W | V | A | (μ×w×v)/A | Thermochromism |
| 1 | 0.283 | 0.98 | 0.1 | 0.025 | 1.1 | × |
| 2 | 0.780 | 1.96 | 0.1 | 0.071 | 2.2 | × |
| 3 | 0.780 | 2.94 | 0.1 | 0.071 | 3.2 | × |
| 4 | 0.476 | 1.96 | 0.1 | 0.022 | 4.2 | ○ |
| 5 | 0.780 | 4.90 | 0.1 | 0.071 | 5.4 | ○ |
| 6 | 0.476 | 2.96 | 0.1 | 0.024 | 5.9 | ◎ |
| 7 | 0.497 | 3.92 | 0.1 | 0.027 | 7.2 | ○ |
| 8 | 0.497 | 4.90 | 0.1 | 0.031 | 7.9 | ◎ |
| 9 | 0.283 | 3.92 | 0.2 | 0.025 | 8.9 | ○ |
| 10 | 0.283 | 2.94 | 0.3 | 0.025 | 10.0 | ○ |
| 11 | 0.283 | 4.90 | 0.2 | 0.025 | 11.1 | ◎ |
| 12 | 0.476 | 0.98 | 0.5 | 0.019 | 12.3 | ◎ |
| 13 | 0.780 | 2.94 | 0.4 | 0.071 | 12.9 | ◎ |
| 14 | 0.497 | 3.92 | 0.2 | 0.027 | 14.4 | ◎ |
| 15 | 0.476 | 4.90 | 0.2 | 0.031 | 15.0 | ◎ |
| 16 | 0.497 | 4.90 | 0.2 | 0.031 | 15.7 | ◎ |
| 17 | 0.476 | 2.94 | 0.3 | 0.025 | 16.8 | ◎ |
| 18 | 0.497 | 2.94 | 0.3 | 0.025 | 17.5 | ◎ |
| 19 | 0.780 | 5.88 | 0.3 | 0.071 | 19.4 | ◎ |
| 20 | 0.283 | 5.88 | 0.3 | 0.025 | 20.0 | ◎ |
| 21 | 0.497 | 3.92 | 0.3 | 0.027 | 21.6 | ◎ |
| 22 | 0.283 | 3.92 | 0.5 | 0.025 | 22.2 | ◎ |
| 23 | 0.476 | 4.90 | 0.3 | 0.031 | 22.6 | ◎ |
| 24 | 0.497 | 4.90 | 0.3 | 0.031 | 23.6 | ◎ |
| 25 | 0.476 | 5.88 | 0.3 | 0.034 | 24.7 | ◎ |
| 26 | 0.497 | 5.88 | 0.3 | 0.034 | 25.8 | ◎ |
| 27 | 0.780 | 4.90 | 0.5 | 0.071 | 26.9 | ◎ |
| 28 | 0.497 | 3.92 | 0.4 | 0.027 | 28.9 | ◎ |
| 29 | 0.476 | 2.94 | 0.5 | 0.024 | 29.2 | ◎ |
| 30 | 0.497 | 2.94 | 0.5 | 0.025 | 29.2 | ◎ |
To apply the constantly acting load of vertical direction on paper be 4.9N to friction piece when table 2 expression made friction, make when friction friction piece on paper mobile fixed speed be 0.5m/s, the fixedly contact area A (cm that contacts on friction piece and the paper when at random selecting coefficientoffrictionμ between friction piece and the paper and friction
2), the value of μ/A is shown and the result of the test of the thermochromism when under this condition, the person's handwriting of the thermochromism that formed by the thermochromism ink being rubbed.In this test, use the altogether 4 kinds of friction pieces that consisted of by styrene resin (2 kinds), silicone resin, polypropylene.In this test, in 25 ℃ environment temperature, use multiple friction piece to being that the thermochromism person's handwriting that 45 ℃ thermochromism ink forms rubs by discoloring temperature (high temperature side color transition point).
In addition, the evaluation of the thermochromism in the table is as follows.
◎: the complete variable color of person's handwriting
Zero: the basic variable color of person's handwriting
△: person's handwriting is variable color slightly
*: person's handwriting does not have variable color fully
Table 2
| Experiment No. | μ | A | μ/A | Thermochromism |
| 1 | 0.283 | 0.283 | 1.0 | × |
| 2 | 0.476 | 0.317 | 1.5 | ○ |
| 3 | 0.476 | 0.238 | 2.0 | ○ |
| 4 | 0.476 | 0.190 | 2.5 | ◎ |
| 5 | 0.780 | 0.260 | 3.0 | ◎ |
| 6 | 0.476 | 0.136 | 3.5 | ◎ |
| 7 | 0.283 | 0.071 | 4.0 | ○ |
| 8 | 0.476 | 0.106 | 4.5 | ◎ |
| 9 | 0.283 | 0.057 | 5.0 | ◎ |
| 10 | 0.283 | 0.051 | 5.5 | ◎ |
| 11 | 0.283 | 0.047 | 6.0 | ◎ |
| 12 | 0.476 | 0.073 | 6.5 | ◎ |
| 13 | 0.780 | 0.111 | 7.0 | ◎ |
| 14 | 0.497 | 0.066 | 7.5 | ◎ |
| 15 | 0.476 | 0.060 | 7.9 | ◎ |
| 16 | 0.497 | 0.058 | 8.6 | ◎ |
| 17 | 0.476 | 0.053 | 9.0 | ◎ |
| 18 | 0.497 | 0.052 | 9.6 | ◎ |
| 19 | 0.780 | 0.078 | 10.0 | ◎ |
| 20 | 0.283 | 0.027 | 10.5 | ◎ |
| 21 | 0.497 | 0.045 | 11.0 | ◎ |
| 22 | 0.283 | 0.025 | 11.3 | ◎ |
| 23 | 0.476 | 0.040 | 11.9 | ◎ |
| 24 | 0.497 | 0.040 | 12.4 | ◎ |
| 25 | 0.476 | 0.037 | 12.9 | ◎ |
| 26 | 0.497 | 0.037 | 13.4 | ◎ |
| 27 | 0.780 | 0.056 | 13.9 | ◎ |
| 28 | 0.497 | 0.034 | 14.6 | ◎ |
| 29 | 0.476 | 0.032 | 14.9 | ◎ |
| 30 | 0.497 | 0.032 | 15.5 | ◎ |
The fixedly contact area A (cm that contacts on friction piece and the paper during friction piece mobile fixed speed V (m/s) and friction on paper when friction piece applied constantly acting load W (N), the friction of vertical direction on paper when coefficientoffrictionμ, friction between friction piece and the paper at random selected in table 3 expression
2), (result of the test of the value of μ * W * V)/A and the thermochromism when under this condition the person's handwriting of the thermochromism that formed by the thermochromism ink being rubbed is shown.In this test, use the altogether 5 kinds of friction pieces that consisted of by styrene resin (2 kinds), silicone resin, polypropylene, iron.In this test, in 25 ℃ environment temperature, using multiple friction piece is that the thermochromism person's handwriting that 60 ℃ thermochromism ink forms rubs to discoloring temperature (high temperature side color transition point).
In addition, the evaluation of the thermochromism in the table is as follows.
◎: the complete variable color of person's handwriting
Zero: the basic variable color of person's handwriting
△: person's handwriting is variable color slightly
*: person's handwriting does not have variable color fully
Table 3
| Experiment No. | μ | W | V | A | (μ×w×v)/A | Thermochromism |
| 1 | 0.121 | 2.94 | 0.1 | 0.031 | 1.1 | × |
| 2 | 0.780 | 1.96 | 0.1 | 0.074 | 2.1 | × |
| 3 | 0.283 | 2.94 | 0.1 | 0.025 | 3.3 | × |
| 4 | 0.780 | 3.92 | 0.1 | 0.074 | 4.1 | × |
| 5 | 0.780 | 0.98 | 0.5 | 0.075 | 5.1 | × |
| 6 | 0.497 | 2.94 | 0.1 | 0.025 | 5.8 | × |
| 7 | 0.497 | 3.92 | 0.1 | 0.027 | 7.2 | × |
| 8 | 0.497 | 4.90 | 0.1 | 0.031 | 7.9 | × |
| 9 | 0.283 | 1.96 | 0.4 | 0.025 | 8.9 | × |
| 10 | 0.283 | 2.94 | 0.3 | 0.025 | 10.0 | × |
| 11 | 0.283 | 1.96 | 0.5 | 0.025 | 11.1 | × |
| 12 | 0.476 | 0.98 | 0.5 | 0.019 | 12.3 | △ |
| 13 | 0.780 | 2.94 | 0.4 | 0.071 | 12.9 | △ |
| 14 | 0.497 | 3.92 | 0.2 | 0.027 | 14.4 | △ |
| 15 | 0.476 | 4.90 | 0.2 | 0.031 | 15.0 | ○ |
| 16 | 0.497 | 4.90 | 0.2 | 0.031 | 15.7 | ○ |
| 17 | 0.476 | 2.94 | 0.3 | 0.025 | 16.8 | ○ |
| 18 | 0.497 | 2.94 | 0.3 | 0.025 | 17.5 | ○ |
| 19 | 0.780 | 5.85 | 0.3 | 0.072 | 19.0 | ◎ |
| 20 | 0.283 | 5.88 | 0.3 | 0.025 | 20.0 | ○ |
| 21 | 0.497 | 3.92 | 0.3 | 0.028 | 20.9 | ○ |
| 22 | 0.283 | 4.90 | 0.4 | 0.025 | 22.2 | ○ |
| 23 | 0.476 | 4.92 | 0.3 | 0.031 | 22.7 | ◎ |
| 24 | 0.497 | 4.90 | 0.3 | 0.031 | 23.6 | ◎ |
| 25 | 0.476 | 5.88 | 0.3 | 0.034 | 24.7 | ◎ |
| 26 | 0.497 | 5.88 | 0.3 | 0.034 | 25.8 | ◎ |
| 27 | 0.780 | 4.90 | 0.5 | 0.071 | 26.9 | ◎ |
| 28 | 0.497 | 3.92 | 0.4 | 0.028 | 27.8 | ◎ |
| 29 | 0.476 | 2.94 | 0.5 | 0.024 | 29.2 | ◎ |
| 30 | 0.497 | 2.94 | 0.5 | 0.024 | 30.4 | ◎ |
To apply the constantly acting load of vertical direction on paper be 4.9N to friction piece when table 4 expression made friction, during friction friction piece on paper mobile fixed speed be 0.5m/s, at random select the coefficientoffrictionμ between friction piece and the paper and friction piece contacts with paper when friction fixedly contact area A (cm
2), the value of μ/A is shown and the result of the test of the thermochromism when under this condition, the person's handwriting of the thermochromism that formed by the thermochromism ink being rubbed.In this test, use the altogether 4 kinds of friction pieces that consisted of by styrene resin (2 kinds), silicone resin, polypropylene.In this test, in 25 ℃ environment temperature, use multiple friction piece to being that the thermochromism person's handwriting that 60 ℃ thermochromism ink forms rubs by discoloring temperature (high temperature side color transition point).
In addition, the evaluation of the thermochromism in the table is as follows.
◎: the complete variable color of person's handwriting
Zero: the basic variable color of person's handwriting
△: person's handwriting is variable color slightly
*: person's handwriting does not have variable color fully
Table 4
| Experiment No. | μ | A | μ/A | Thermochromism |
| 1 | 0.283 | 0.283 | 1.0 | × |
| 2 | 0.476 | 0.317 | 1.5 | × |
| 3 | 0.476 | 0.238 | 2.0 | × |
| 4 | 0.476 | 0.190 | 2.5 | × |
| 5 | 0.780 | 0.260 | 3.0 | × |
| 6 | 0.476 | 0.136 | 3.5 | × |
| 7 | 0.283 | 0.071 | 4.0 | × |
| 8 | 0.476 | 0.106 | 4.5 | × |
| 9 | 0.283 | 0.057 | 5.0 | × |
| 10 | 0.497 | 0.090 | 5.5 | △ |
| 11 | 0.476 | 0.079 | 6.0 | ○ |
| 12 | 0.476 | 0.073 | 6.5 | ◎ |
| 13 | 0.780 | 0.111 | 7.0 | ◎ |
| 14 | 0.497 | 0.066 | 7.5 | ○ |
| 15 | 0.476 | 0.060 | 7.9 | ◎ |
| 16 | 0.497 | 0.058 | 8.6 | ◎ |
| 17 | 0.476 | 0.053 | 9.0 | ◎ |
| 18 | 0.497 | 0.052 | 9.6 | ◎ |
| 19 | 0.780 | 0.078 | 10.0 | ◎ |
| 20 | 0.283 | 0.027 | 10.5 | ◎ |
| 21 | 0.497 | 0.045 | 11.0 | ◎ |
| 22 | 0.283 | 0.025 | 11.3 | ◎ |
| 23 | 0.476 | 0.040 | 11.9 | ◎ |
| 24 | 0.497 | 0.040 | 12.4 | ◎ |
| 25 | 0.476 | 0.037 | 12.9 | ◎ |
| 26 | 0.497 | 0.037 | 13.4 | ◎ |
| 27 | 0.780 | 0.056 | 13.9 | ◎ |
| 28 | 0.497 | 0.034 | 14.6 | ◎ |
| 29 | 0.476 | 0.032 | 14.9 | ◎ |
| 30 | 0.497 | 0.032 | 15.5 | ◎ |
Claims (10)
1. friction piece, its pattern or person's handwriting to the thermochromism that uses the thermochromism ink and form on paper rubs, and the frictional heat of utilizing produce this moment makes pattern or the person's handwriting thermo-color of above-mentioned thermochromism, it is characterized in that,
Above-mentioned friction piece is made of soft synthetic resin, and an end that contacts with paper of above-mentioned friction piece has the curved profile shape,
The friction part of above-mentioned friction piece is set in respect to the coefficient of friction of paper in 0.2～1.0 the scope,
The thermal conductivity of the friction part of above-mentioned friction piece is set in the scope of 0.05W/ (mK)～50W/ (mK),
Wherein, above-mentioned coefficient of friction uses the surface measurements machine, and divide at 100mm/, under the condition of load 4.9N, the coefficient of friction when writing paper rubs measured,
Be μ making the coefficient of friction between above-mentioned friction piece and the paper,
When making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting, the load that friction piece applies vertical direction on paper is W (N),
When making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting, friction piece on paper mobile speed is V (m/s),
When making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting, the contact area that friction piece contacts with paper is A (cm
2) time,
Above-mentioned coefficientoffrictionμ, above-mentioned load W, above-mentioned speed V, and above-mentioned contact area A satisfy
30.4≥(μ×W×V)/A≥12.3
Relation,
The load that friction piece applies vertical direction on paper when making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting is 4.9N, and friction piece is on paper in the mobile situation of speed for 0.5m/s when making the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting
Contact area A (the cm that friction piece contacts with paper when the coefficientoffrictionμ between above-mentioned friction piece and the paper, the pattern that utilizes the thermochromism on the above-mentioned friction piece friction paper or person's handwriting
2), satisfy
15.5≥μ/A≥5.5
Relation.
2. friction piece according to claim 1 is characterized in that,
The thermal conductivity of the friction part of above-mentioned friction piece is set in the scope of 0.05W/ (mK)～20W/ (mK).
3. friction piece according to claim 2 is characterized in that,
The thermal conductivity of the friction part of above-mentioned friction piece is set in the scope of 0.05W/ (mK)～10W/ (mK).
4. a writing implement is characterized in that,
With the described friction piece of any one in the claims 1 to 3, be installed on the part of the writing implement that is built-in with the thermochromism ink and can sprays the thermochromism ink.
5. writing implement according to claim 4 is characterized in that,
In the writing implement main body, be built-in with the thermochromism ink, have the nib that is consisted of by the ball-point pen tip that can spray above-mentioned thermochromism ink at the front end of above-mentioned writing implement main body, have friction piece in the rear end of above-mentioned writing implement main body.
6. writing implement according to claim 4 is characterized in that,
In the writing implement main body, be built-in with the thermochromism ink, front end in above-mentioned writing implement main body has the nib that is made of the ball-point pen tip that can spray above-mentioned thermochromism ink, nib side in above-mentioned writing implement main body has the cap for brush that can freely plug, and has friction piece at the top of the above-mentioned cap for brush.
7. writing implement according to claim 4 is characterized in that,
The writing implement main body has: ink barrel, and it is accommodated the thermochromism ink and makes the above-mentioned nib can be mounted thereto movably forward and backward; And valve gear, by rearward being pressed, nib makes this valve gear opening,
Above-mentioned nib is made of fiber process body or the porous plastid that can spray above-mentioned thermochromism ink, has the cap for brush that can freely plug in the nib side of above-mentioned writing implement main body, has friction piece in the rear end of above-mentioned writing implement main body or the top of the above-mentioned cap for brush.
8. writing implement according to claim 4 is characterized in that,
The writing implement main body has: ink adsorbent, its heat of immersion discolouration ink; And nib, it is connected with above-mentioned ink adsorbent, and can spray above-mentioned thermochromism ink,
Above-mentioned nib is made of fiber process body or porous plastid, above-mentioned ink adsorbent is made of the parts with continuous pore, nib side in above-mentioned writing implement main body has the cap for brush that can freely plug, and has friction piece in the rear end of above-mentioned writing implement main body or the top of the above-mentioned cap for brush.
9. writing implement according to claim 4 is characterized in that,
The writing implement main body has: by the nib that ball-point pen tip consists of, it can spray the thermochromism ink; Ink barrel, it accommodates the thermochromism ink; And the ink retention body, it is configured between above-mentioned nib and the above-mentioned ink barrel, the ink that temporary transient maintenance is overflowed along with the pressure rise in the above-mentioned ink barrel,
Nib side in above-mentioned writing implement main body has the cap for brush that can freely plug, and has friction piece in the rear end of above-mentioned writing implement main body or the top of the above-mentioned cap for brush.
10. a writing implement set is characterized in that,
It is comprised of the described friction piece of any one in the claims 1 to 3 and the writing implement that is built-in with the thermochromism ink and can sprays the thermochromism ink.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210286913.5A CN102785511B (en) | 2007-05-22 | 2008-05-21 | Friction piece, writing implement and writing implement set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007135405A JP2008290267A (en) | 2007-05-22 | 2007-05-22 | Rubbing body, writing utensil and writing utensil set |
| JP2007135405 | 2007-05-22 | ||
| JP2007-135405 | 2007-05-22 | ||
| JP2007-139609 | 2007-05-25 | ||
| JP2007139609 | 2007-05-25 | ||
| JP2007139609A JP2008290392A (en) | 2007-05-25 | 2007-05-25 | Rubbing body, writing utensil, and writing utensil set |
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| CN201210286913.5A Division CN102785511B (en) | 2007-05-22 | 2008-05-21 | Friction piece, writing implement and writing implement set |
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| CN101311001B true CN101311001B (en) | 2013-01-23 |
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| JP (1) | JP2008290267A (en) |
| CN (1) | CN101311001B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101898408B1 (en) * | 2010-02-03 | 2018-09-12 | 파일롯트 잉크 가부시키가이샤 | Writing tool |
| JP5588304B2 (en) * | 2010-10-29 | 2014-09-10 | パイロットインキ株式会社 | Thermochromic writing instrument |
| EP2873533B1 (en) * | 2012-06-28 | 2020-09-02 | Pilot Corporation | Retractable ballpoint pen |
| JP6579738B2 (en) * | 2014-09-11 | 2019-09-25 | 三菱鉛筆株式会社 | Thermal discoloration writing instrument |
| CN110087893B (en) * | 2016-12-19 | 2021-02-26 | 株式会社百乐 | Friction body, writing tool and writing assembly |
| JP6951135B2 (en) * | 2017-06-30 | 2021-10-20 | 三菱鉛筆株式会社 | Friction body and heat discoloration writing tool |
| CN110843388B (en) * | 2019-12-04 | 2021-05-07 | 上海市杨浦区青少年科技站 | Electric heating eraser capable of erasing pen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291555A (en) * | 1999-08-30 | 2001-04-18 | 樱花彩色产品株式会社 | Rubber |
| JP2004148744A (en) * | 2002-10-31 | 2004-05-27 | Pilot Ink Co Ltd | Friction body and writing utensil |
| JP2006123324A (en) * | 2004-10-28 | 2006-05-18 | Pilot Ink Co Ltd | Frictional body, writing utensil equipped with the same and writing utensil set |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3321655B2 (en) * | 1994-03-07 | 2002-09-03 | パイロットインキ株式会社 | Thermal discoloration writing material set |
| JP3835732B2 (en) * | 1999-08-30 | 2006-10-18 | ラビット株式会社 | Erasing and manufacturing method |
| JP4326817B2 (en) * | 2003-02-13 | 2009-09-09 | パイロットインキ株式会社 | Ink composition for metallic glossy reversible thermochromic writing instrument |
| JP2005131793A (en) * | 2003-10-28 | 2005-05-26 | Koichi Ogura | Simple pencil |
| JP4563105B2 (en) * | 2004-08-06 | 2010-10-13 | 三菱鉛筆株式会社 | Eraser |
| JP4961115B2 (en) * | 2005-06-01 | 2012-06-27 | パイロットインキ株式会社 | Aqueous ink composition for reversible thermochromic writing instrument and writing instrument containing the same |
| JP5415671B2 (en) * | 2006-01-27 | 2014-02-12 | パイロットインキ株式会社 | Friction body and writing instrument and writing instrument set including the same |
| JP2008155624A (en) * | 2006-11-29 | 2008-07-10 | Pilot Ink Co Ltd | Frictional element and writing utensil using it, and writing utensil set |
-
2007
- 2007-05-22 JP JP2007135405A patent/JP2008290267A/en active Pending
-
2008
- 2008-05-21 CN CN 200810099706 patent/CN101311001B/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291555A (en) * | 1999-08-30 | 2001-04-18 | 樱花彩色产品株式会社 | Rubber |
| JP2004148744A (en) * | 2002-10-31 | 2004-05-27 | Pilot Ink Co Ltd | Friction body and writing utensil |
| JP2006123324A (en) * | 2004-10-28 | 2006-05-18 | Pilot Ink Co Ltd | Frictional body, writing utensil equipped with the same and writing utensil set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101311001A (en) | 2008-11-26 |
| JP2008290267A (en) | 2008-12-04 |
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