US20120285637A1 - Screen extending frame - Google Patents

Screen extending frame Download PDF

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Publication number
US20120285637A1
US20120285637A1 US13/522,606 US201113522606A US2012285637A1 US 20120285637 A1 US20120285637 A1 US 20120285637A1 US 201113522606 A US201113522606 A US 201113522606A US 2012285637 A1 US2012285637 A1 US 2012285637A1
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United States
Prior art keywords
screen
screen extending
frame
extending frame
frame members
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Abandoned
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US13/522,606
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English (en)
Inventor
Furetsu Kasuya
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/36—Screens, Frames; Holders therefor flat
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
    • H05K3/1216—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by screen printing or stencil printing
    • H05K3/1225—Screens or stencils; Holders therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
    • H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
    • H05K3/3457—Solder materials or compositions; Methods of application thereof
    • H05K3/3485—Applying solder paste, slurry or powder

Definitions

  • the present invention relates to a screen extending frame in which a screen for screen printing in a sheet shape or a mesh shape is extended and is mounted on a screen extending jig for adjusting tension of the screen in regard to manufacturing of printed circuit boards.
  • a printed circuit board in the subtractive process that is generally used in electric/electronic devices is configured to be formed with a conductive pattern by removing unnecessary portions of copper foil stuck to an insulating substrate, and active and passive elements are fixed to the conductive pattern by means of soldering, or the like.
  • a screen board which is a mesh-like sheet woven with a metal or a resin or a sheet made of a metal or a resin, is used by forming holes of image thereon and by extending the sheet in a frame with uniform tension, not making crinkles.
  • a metal mask where through holes are formed on a metal thin plate made of stainless steel or the like is extended in a screen extending frame with tension, ink is transferred onto the insulating substrate via the through holes using a squeegee, and thereby, a conductive pattern or a solder pattern is formed thereon.
  • a planar shape is ideal for the object to be printed, but there may be warping or waviness thereon in some cases, and a material with flexibility is selected for the squeegee in order to keep the screen board in tight contact with the printed object, and the extending tension of the screen is not so tensed.
  • the screen is required to be as strongly extended as possible, a rigid and sturdy screen frame is prepared, the sheet is intensively pulled from four directions, and extended using a stretching property of the sheet material and using a repulsive force thereof.
  • the sheet can be extended since the mesh does not have a high stretching property but has a little.
  • the sheet can be extended by connecting the outer circumference of the centered metal sheet to a resin sheet having the stretching property.
  • the screen is used as attached to the screen extending frame. If there has slack, the location of the printed pattern is deviated or the pattern is warped when the screen is rubbed by the squeegee. In order to prevent such a situation, it is necessary to always give a certain degree of tension to the screen by exerting a tensile force thereto when printing is performed.
  • a tension fixed frame of which the size is fixed so as to maintain the tensile force of the screen constant there are a tension fixed frame of which the size is fixed so as to maintain the tensile force of the screen constant, and a tension variable frame of which the size varies so as to be able to change the tensile force of the screen. Since both frames are required to have strength that gives a tensile force to the screen, the frames have to be robust and large.
  • the tension variable frame of which the size varies includes a variable mechanism, and accordingly, the frame costs higher.
  • the screen needs to be separated from the circuit board to be printed before and after printing, and to be brought into tight contact with the circuit board when printing is performed using a squeegee. For this reason, the screen is required to have the stretching property.
  • the metal mask does not have the stretching property, it is, in general, stuck to a mesh made of polyester strings, stainless steel strings, or the like and is used as a screen. There may be a case where a metal mask is used as it is, and in that case, any extending and reducing mechanism is provided in the mounting portion of the metal mask or in the screen extending frame.
  • a screen using a mesh is attached to the screen extending frame mostly by using an adhesive agent, and such the screen is kept attached to the screen extending frame so long as the screen is necessary. For this reason, when being not in use, the heavy and bulky screen has to be stored or transported.
  • a screen extending frame in a configuration where the end part of the screen using a mesh is attached thereto by means of winding, clamping, or the like.
  • the screen extending frame it is possible to remove the screen from the screen extending frame for storage or transportation when the screen is not in use, but it is not easy to store or transport the screen without damaging the printing patterns that are precisely formed thereon as the screen is thin.
  • Patent Application No. 2002-556010 (refer to Publication No. WO2002/055304) a device for screen printing in which a screen extending frame is divided into a screen extending jig having a tensile force adjusting mechanism and a screen extending frame in a simple structure without the tensile force adjusting mechanism, which is provided with an engagement mechanism to connect the jig and the frame with each other, and thereby, the screen is attached to the screen extending frame.
  • the screen printing device is described referring to FIG. 1 .
  • the reference numeral 1 is the screen extending jig, and the screen extending frame 2 having engagement grooves 4 is mounted on the screen extending jig 1 .
  • a screen 3 is attached, which is a sheet that is a metal plate or a resin plate with conductive patterns formed by through holes, or is a mesh stuck a sheet with conductive patterns formed by through holes, not shown in the drawing, thereto.
  • the screen extending frame 2 is constituted by joining four plate-shaped, or rectangular tube-shaped frame members together by means of welding, or the like.
  • each frame member constituting the screen extending frame
  • the length in the longitudinal direction of each frame member represents the “length”
  • the length from the outside to the inside thereof represents the “width”
  • the length between a face to which the sheet is attached and a face to which the sheet is not attached represents the “thickness”.
  • FIGS. 1 (B) and (C) illustrate mounting the screen extending frame 2 on the screen extending jig 1 .
  • FIG. 1 (B) shows the state of the screen extending frame 2 before being mounted on the screen extending jig 1
  • FIG. 1 (C) shows the state of the screen extending frame 2 being mounted on the screen extending jig 1 .
  • the engagement grooves 4 are formed on the mounting sides of the screen extending frame 2 along the longitudinal direction of the screen extending jig, and engagement elements 5 are formed on the mounting sides of the screen extending jig 1 along the longitudinal direction of the screen extending jig.
  • the tensile force to the screen 3 is adjusted by extending or reducing the screen extending jig 1 in the arrow directions shown in the drawing where the engagement elements 5 are kept engaged with the engagement grooves 4 .
  • Conductive patterns are formed using the screen by transferring ink with a squeegee not shown in the drawing via through holes.
  • the screen is attached to the screen extending frame 2 by fixing means such as an adhesive agent, that is mounted on the screen extending jig 1 , and the tensile force is exerted thereon by the screen extending jig 1 .
  • fixing means such as an adhesive agent
  • slack or the like occurs which may cause the screen deformation. It is, therefore, desirable for the screen to have a certain degree of tension even being attached only to the screen extending frame 2 .
  • a screen printing device using a screen extending frame in which the screen is attached to a screen extending frame, the screen extending frame is mounted on the screen extending jig, and the tension of the screen is adjusted by changing the size of the screen extending jig, is disclosed in Japanese Patent Laid-Open Publication Nos. 2006-212955, 2006-44180 and 2008-1010 by the present inventor, in addition to the publication WO2002/055304. Furthermore, Japanese Patent Laid-Open Publication No. 2000-15777 also describes a screen printing device using a screen extending frame.
  • FIGS. 2 and 3 show the configuration of the screen extending frame of the related art shown in Japanese Patent Laid-Open Publication Nos. 2006-212955 and 2008-1010.
  • (A) is an overall view of the screen extending frame
  • (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A)
  • (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 10 shown in FIG. 2 is constituted by two parallel frame members 11 a and 11 c , two frame members 11 b and 11 d that are arranged orthogonal to the above frame members and parallel to each other, and four corner members 13 a, 13 b, 13 c, and 13 d that connect the above four frame members.
  • engagement grooves 12 a , 12 b, 12 c, and 12 d are formed, with which engagement elements formed on a screen extending jig are engaged.
  • the four frame members 11 a, 11 b, 11 c, and 11 d have the same cross-sectional shape, and the frame member 11 a shown in FIG. 2 (B) as a representative example has an insertion hole 15 a inside thereof and the engagement groove 12 a formed on one face to be engaged with the engagement element of the screen extending jig, and has a flat face on the other side so as to attach a screen thereto.
  • both ends of four frame members 11 a, lib, 11 c, and 11 d have planes at an angle of 90? with respect to the length direction.
  • the four corner members 13 a, 13 b, 13 c, and 13 d have the same cross-sectional shape, the corner member 13 a shown in FIG. 2 (B) as a representative example is provided with two corner plates 17 a and 17 b orthogonal to each other in a main body 14 a of which the upper face is a square.
  • the corner plates 17 a and 17 b have a cross-sectional shape so that the corner plates can be respectively inserted and slid in the insertion hole 16 a of the frame member 11 a and the insertion hole 16 b of the frame member 11 b.
  • the corner plate 16 a is inserted into the insertion hole 15 a of the frame member 11 a in the arrow direction
  • the corner plate 16 b is inserted into the insertion hole 15 b of the frame member 11 b in the arrow direction, and accordingly, the four frame members 11 a, 11 b, 11 c, and 11 d and the four corner members 13 a , 13 b, 13 c, and 13 d are assembled together to form the screen extending frame 10 .
  • the screen is attached to the screen extending frame 10 , the engagement elements of the extending jig are engaged with the engagement grooves 12 a, 12 b , 12 c, and 12 d, the corner plates inserted into the insertion holes slide in the insertion holes when the extending jig extends or reduces, whereby the screen extending frame 10 extends and reduces, and the tensile force is exerted on the screen.
  • a screen extending frame 20 shown in FIG. 3 is constituted by two parallel frame members 21 a and 21 c, two more frame members 21 b and 21 d that are arranged orthogonal to the above frame members and parallel to each other, and four corner members 23 a, 23 b, 23 c, and 23 d that connect the four frame members, not shown specifically in the drawing.
  • engagement grooves 22 a , 22 b, 22 c, and 22 d are formed, with which engagement elements formed on a screen extending jig are engaged.
  • the four frame members 21 a, 21 b, 21 c, and 21 d have the same cross-sectional shape, and the frame member 21 a shown in FIG. 3 (B) as a representative example has a insertion hole 25 a inside thereof and the engagement groove 22 a formed on one face to be engaged with the engagement element of the screen extending jig, and has a flat face on the other side so as to attach a screen thereto.
  • both ends of four frame members 21 a, 21 b, 21 c, and 21 d have inclined planes at the angle of 45? in this example, which incline to the inner side of the screen extending frame 20 in the length direction.
  • the four corner members 23 a, 23 b, 23 c, and 23 d have the same shape.
  • the corner member 23 a shown in FIG. 3 (B) as a representative example is provided with two corner plates 26 a and 26 b which are orthogonal to each other, have a cross-sectional shape so that the corner plates can be inserted and slid in the insertion holes 25 a and 25 b respectively.
  • the corner plate 26 a is inserted into the insertion hole 25 a of the frame member 21 a in the arrow direction
  • the corner plate 26 b is inserted into the insertion hole 25 b in the arrow direction
  • the four frame members 21 a, 21 b, 21 c, and 21 d and the four corner members 22 a, 22 b, 22 c, and 22 d are assembled together to form the screen extending frame 20 .
  • the screen is attached to the screen extending frame 20 , the engagement elements of the screen extending jig are engaged with the engagement grooves 22 a , 22 b, 22 c, and 22 d, and the corner plates inserted into the insertion holes slide in the insertion holes when the screen extending jig extends or reduces, whereby the screen extending frame 20 extends or reduces, and the tensile force is exerted on the screen.
  • the invention according to the present application aims to provide a screen extending frame that can prevent the above circumstance.
  • cut grooves are formed in the inner sides and/or outer sides of connections orthogonally connecting four frame members constituting a screen extending frame so that the angles of the connections change, allowing the frame members inwardly or outwardly change in shape, and accordingly, the size of the screen extending frame variable.
  • the screen extending frame mounted with an elastic element is reduced by a jig such as a screen extending jig having an extending and reducing function, a screen is attached to the screen extending frame in that state, and when fixing work, such as adhesion, is completed, setting the extending or reducing degree of the screen extending jig to be optimum, then screen printing is performed.
  • a jig such as a screen extending jig having an extending and reducing function
  • a gap or an elastic element is provided in each coupling of the four frame members so as to give an extending force to an end of a frame side in each connections of the frame members, whereby flexibility is given to the extending frame, according to the invention of the present application.
  • a solid elastic element such as natural rubber or synthetic rubber, or a non-solid spring such as a plate spring or a coil spring can be used, and it is also possible to further provide an elastic element in the gap in the coupling.
  • the screen extending frame mounted with the elastic element is reduced by a jig such as a screen extending jig having an extending and reducing function, a screen is attached to the screen extending frame in that state, and when fixing work, such as adhesion, is completed, setting the extending or reducing degree of the screen extending jig to be optimum, then screen printing is performed.
  • a jig such as a screen extending jig having an extending and reducing function
  • a screen extending frame in a rectangular shape which is constituted by four frame members having the square-shape cross-section, and is used in such a way that a screen is attached to one face thereof, and the other face thereof is mounted on a screen extending jig having an extending and reducing function, in which couplings of the four frame members have flexibility and elasticity.
  • a screen printing apparatus including a mechanism for mounting a screen extending frame, and a mechanism for extending and reducing the mounted screen extending frame.
  • FIG. 1 illustrates a screen extending jig and a screen extending fume of the related art.
  • FIG. 2 illustrates a configuration of the screen extending frame of the related art.
  • FIG. 3 illustrates another configuration of the screen extending frame of the related art.
  • FIG. 4 is an illustrative configuration diagram of a screen extending frame according to Embodiment 1.
  • FIG. 5 is an illustrative function diagram of the screen extending frame according to Embodiment 1.
  • FIG. 6 is an illustrative configuration diagram of a screen extending frame according to Embodiment 2.
  • FIG. 7 is an illustrative function diagram of the screen extending frame according to Embodiment 2.
  • FIG. 8 is an illustrative configuration diagram of a screen extending frame according to Embodiment 3.
  • FIG. 9 is an illustrative configuration diagram of a screen extending frame according to Embodiment 4.
  • FIG. 10 is an illustrative configuration diagram of a screen extending frame according to Embodiment 5.
  • FIG. 11 is an illustrative configuration diagram of a screen extending frame according to Embodiment 6.
  • FIG. 12 is an illustrative configuration diagram of a screen extending flame according to Embodiment 7.
  • FIG. 13 is an illustrative configuration diagram of a screen extending frame according to Embodiment 8.
  • FIG. 14 is an illustrative configuration diagram of a screen extending frame according to Embodiment 9.
  • FIG. 15 is an illustrative configuration diagram of a screen extending frame according to Embodiment 10.
  • FIG. 16 is an illustrative configuration diagram of a screen extending frame according to Embodiment 11.
  • FIG. 17 is an illustrative configuration diagram of a screen extending frame according to Embodiment 12.
  • FIG. 18 is an illustrative configuration diagram of a screen extending frame according to Embodiment 13.
  • FIG. 19 is an illustrative configuration diagram of a screen extending frame according to Embodiment 14.
  • FIG. 20 is an illustrative configuration diagram of a screen extending frame according to Embodiment 15.
  • FIG. 21 is an illustrative configuration diagram of a screen extending frame according to Embodiment 16.
  • FIG. 22 is an illustrative configuration diagram of a screen extending frame according to Embodiment 17.
  • FIG. 23 is an illustrative configuration diagram of a screen extending frame according to Embodiment 18.
  • FIG. 24 is an illustrative configuration diagram of a screen extending frame according to Embodiment 19.
  • FIG. 25 is an illustrative configuration diagram of a screen extending frame according to Embodiment 20.
  • FIG. 26 is an illustrative configuration diagram of a screen extending frame according to Embodiment 21.
  • FIG. 27 is an illustrative function diagram of the screen extending frame according to Embodiment 21.
  • FIG. 28 is an illustrative configuration diagram of a screen extending frame according to Embodiment 22.
  • FIG. 29 is an illustrative function diagram of the screen extending frame according to Embodiment 22.
  • FIG. 30 is an illustrative configuration diagram of a screen extending frame according to Embodiment 23.
  • FIG. 31 is an illustrative function diagram of the screen extending frame according to Embodiment 23.
  • a screen extending frame to be shown in embodiments is a screen extending frame in a rectangular shape and used, when a screen is attached thereto, by being mounted on a screen extending jig having an extending and reducing function. It is constituted by a first frame member and a third frame member that are arranged in parallel and have the same length, and a second frame member and a fourth frame member that are arranged in parallel and have the same length, the cross-sections of the first, the second, the third and the fourth frame members are square, one faces of the first, the second, the third and the fourth frame members are plane to which the screen is attached.
  • a rectangular screen extending frame is formed by connecting the first and the second frame members, the second and the third frame members, the third and the fourth frame members, and the fourth and the first frame members, and the corners of the screen extending frame are configured so as to have flexibility and elasticity.
  • FIG. 4 shows a configuration of Embodiment 1
  • FIG. 5 illustrates the function of Embodiment 1.
  • FIG. 4 (A) is an overall view of a screen extending frame 30 , (B) is an enlarged exploded view of a portion indicated by the dashed circle B in (A), and (C) is a cross-sectional view of the portion indicated by the dashed line C in (B).
  • the screen extending frame 30 is assembled with four frame members 31 a, 31 b, 31 c, and 31 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 32 a , 32 b, 32 c, and 32 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • All of the four frame members 31 a, 31 b, 31 c, and 31 d have the same cross-sectional shape, the engagement groove 32 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 31 a as shown by the cross-section in FIG. 4 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 32 a, 32 b, 32 c, and 32 d, and the extending jig is extended and reduced, the screen extending frame 30 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the function of the screen extending frame 30 is described referring to FIG. 5 .
  • the screen extending frame 30 configured by the joined four frame members 31 a, 31 b, 31 c, and 31 d is pressed in the directions of the black arrows using a tool such as the screen extending jig, a clamp, a vise, or the like, not shown in the drawing. For this reason, as the open ends of the cut grooves 33 a, 33 b, 33 c, and 33 d reduce, the frame members 31 a, 31 b, 31 c, and 31 d inwardly bend, and the screen extending frame 10 is reduced, and resulted a reduced screen extending frame 30 ′ constituted by curved frame members 31 a ′, 31 b ′, 31 c ′, and 31 d ′.
  • the screen is fixed to the reduced screen extending frame 30 ′ by means of adhesion, or the like.
  • the screen extending frame gives a tensile force on the screen even when the extending jig is not used, and therefore, it is possible to perform screen printing only with the screen extending frame alone without using the screen extending jig.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 33 a , 33 b, 33 c, and 33 d enables protection of the open ends and supplementation of elasticity.
  • Embodiment 2 obtained by modifying Embodiment 1 is shown in FIG. 6 , and the function of Embodiment 2 is described referring to FIG. 7 .
  • (A) is an overall view of a screen extending frame 40
  • (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A)
  • (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 40 is assembled with four frame members 41 a, 41 b, 41 c, and 41 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 42 a , 42 b, 42 c, and 42 d with which engagement elements formed in screen extending jig are engaged each are formed.
  • All of the four frame members 41 a, 41 b, 41 c, and 41 d have the same cross-sectional shape, the engagement groove 42 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 41 a as shown by the cross-section in FIG. 6 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 42 a, 42 b, 42 c, and 42 d, and the extending jig is extended and reduced, the screen extending frame 40 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the function of the screen extending frame 40 is described referring to FIG. 7 .
  • the screen extending frame 40 configured by the joined four frame members 41 a, 41 b, 41 c, and 41 d is pressed in the directions of the black arrows using a tool such as the screen extending jig, a clamp, a vise, or the like, not shown in the drawing.
  • the screen is, then, fixed to the screen extending frame 40 ′ by means of adhesion, or the like.
  • the frame members 41 a ′, 41 b ′, 41 c ′, and 41 d ′ that inwardly shift will return to the shape of the state not being compressed, and as the open ends of the cut grooves 43 a ′, 43 b ′, 43 c ′, 43 d ′, 43 ab ′, 43 ba ′, 43 bc ′, 43 cb ′, 43 cd ′, 43 dc ′, 43 da ′, and 43 cd ′ open widely, the reduced screen extending frame 40 ′ extends, and a tensile force is exerted on the screen fixed to the screen extending frame thus extended.
  • the screen extending frame gives the tensile force on the screen even when the extending jig is not used, and therefore, it is possible to perform screen printing only with the screen extending frame alone without using the screen extending jig.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 43 a , 43 b, 43 c, 43 d, 43 ab , 43 ba , 43 bc , 43 cb , 43 cd , 43 dc , 43 da , and 43 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 3 that is another Embodiment obtained by modifying Embodiment 1 is shown in FIG. 8 .
  • (A) is an overall view of a screen extending frame 50
  • (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A)
  • (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 50 is assembled with four frame members 51 a, 51 b, 51 c, and 51 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 52 a , 52 b, 52 c, and 52 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • a cut groove 54 ab that is orthogonal to the outer side from the inner side of the joint with the frame member 51 b and a narrow cut groove 54 ad that is orthogonal to the outer side from the inner side of the joint thereof with the frame member 51 d
  • a narrow cut groove 54 ba that is orthogonal to the outer side from the inner side of the joint with the frame member 51 a and a narrow cut groove 54 bc that is orthogonal to the outer side from the inner side of the joint thereof with the frame member 51 c
  • on the frame member 51 c a narrow cut groove 54 cb that is orthogonal to the outer side from the inner side of the joint with the frame member 51 b and a narrow cut groove 54 cd that is orthogonal to the outer side from the inner side of the joint thereof with the frame member 51 d
  • a narrow cut groove 54 dc that is orthogonal to the outer side from the inner side of the joint
  • All of the four frame members 51 a, 51 b, 51 c, and 51 d have the same cross-sectional shape, the engagement groove 52 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 51 a as shown by the cross-section in FIG. 8 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 52 a, 52 b, 52 c, and 52 d, and the extending jig is extended and reduced, the screen extending frame 50 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the screen extending frame 50 configured by combining the four frame members 51 a, 51 b, 51 c, and 51 d is pressed in the inward direction using a tool such as the screen extending jig, a clamp, a vise, or the like, the open ends of the cut grooves 53 a, 54 ab , 54 ba , 53 b, 54 bc , 54 cb , 53 c, 54 cd , 54 dc , 53 d, 54 da , and 54 ad that are formed inner side are reduced, the frame members 51 a, 51 b, 51 c, and 51 d inwardly bend, and accordingly, the screen extending frame 50 is reduced.
  • a tool such as the screen extending jig, a clamp, a vise, or the like
  • the screen is, then, fixed to the screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will return to the shape of the state not being compressed, and as the open ends of the cut grooves 53 a, 54 ab , 54 ba , 53 b , 54 bc , 54 cb , 53 c, 54 cd , 54 dc , 53 d, 54 da , and 54 ad open widely, thereby the frame members 51 a, 51 b, 51 c, and 51 d outwardly extend, causing the screen extending frame 50 to extend, and a tensile force is exerted on the screen attached to the extended screen extending frame.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 53 a , 53 b, 53 c, 53 d, 54 ab , 54 ba , 54 bc , 54 cb , 54 cd , 54 dc , 54 da , and 54 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 4 that is another Embodiment obtained by modifying Embodiment 1 is shown in FIG. 9 .
  • FIG. 9 (A) is an overall view of a screen extending frame 60 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 60 is assembled with four frame members 61 a, 61 b, 61 c, and 61 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 62 a , 62 b, 62 c, and 62 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • All of the four frame members 61 a, 61 b, 61 c, and 61 d have the same cross-sectional shape, the engagement groove 62 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 61 a as shown by the cross-section in FIG. 9 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 62 a, 62 b, 62 c, and 62 d, and the extending jig is extended and reduced, the screen extending frame 60 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the screen extending frame 60 configured by combining the four frame members 61 a, 61 b, 61 c, and 61 d is pressed in the inward direction using a tool such as the screen extending jig, a clamp, a vise, or the like, the open ends of the cut grooves 63 a, 63 b, 63 c, and 63 d that are formed in the inner side are reduced, the open ends of the cut grooves 64 ab , 64 ba , 64 bc , 64 cb , 64 cd , 64 dc , 64 da , and 64 ad that are formed in the outer side open widely, and accordingly, the frame members 61 a , 61 b, 61 c, and 61 d inwardly bend, causing the screen extending frame 60 to be reduced.
  • a tool such as the screen extending jig, a clamp, a vise, or the like
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state not being compressed, and as the open ends of the cut grooves 63 a, 63 b, 63 c , and 63 d that are formed in the inner side are widely open and the open ends of the cut grooves 44 ab , 64 ba , 64 bc , 64 cb , 64 cd , 64 dc , 64 da , and 64 ad that are formed in the outer side are reduced, thereby the frame members 61 a, 61 b, 61 c, and 61 d extend to the outer side to extend the screen extending frame 60 , and therefore, a tensile force is exerted on the screen attached to the extended screen extending frame.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 63 a , 63 b, 63 c, 63 d, 64 ab , 64 ba , 64 bc , 64 cb , 64 cd , 64 dc , 64 da , and 64 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 5 that is another example obtained by modifying Embodiment 1 is shown in FIG. 10 .
  • FIG. 10 (A) is an overall view of a screen extending frame 70 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 70 is assembled with four frame members 71 a, 71 b, 71 c, and 71 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 72 a , 72 b, 72 c, and 72 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • All of the four frame members 71 a, 71 b, 71 c, and 71 d have the same cross-sectional shape, the engagement groove 72 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 71 a as shown by the cross-section in FIG. 10 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 72 a, 72 b, 72 c, and 72 d, and the extending jig is extended and reduced, the screen extending frame 70 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the screen extending frame 70 configured by combining the four frame members 71 a, 71 b, 71 c, and 71 d is pressed in the inward direction using a tool such as the screen extending jig, a clamp, a vise, or the like, the open ends of the cut grooves 73 a , 73 b , 73 c , 73 d , 74 ab , 74 ba , 74 bc , 74 cb , 74 cd , 74 dc , 74 da , and 74 ad are reduced, and accordingly, the frame members 71 a , 71 b , 71 c , and 71 d inwardly bend, causing the screen extending frame 70 to be reduced.
  • a tool such as the screen extending jig, a clamp, a vise, or the like
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state not being compressed, and as the open ends of the cut grooves 73 a , 73 b , 73 c , 73 d , 74 ab , 74 ba , 74 bc , 74 cb , 74 cd , 74 dc , 74 da , and 74 ad are widely open, the frame members 71 a , 71 b , 71 c , and 71 d extend to the outer side to extend the screen extending frame 70 , and therefore, a tensile force is exerted on the screen attached to the screen extending frame thus extended.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 73 a , 73 b , 73 c , 73 d , 74 ab , 74 ba , 74 bc , 74 cb , 74 cd , 74 dc , 74 da , and 74 ad enables protection of the open ends and supplementation of elasticity.
  • FIG. 11 The configuration of Embodiment 6 is shown in FIG. 11 . Description of the function corresponding to that of FIG. 5 or FIG. 7 is omitted.
  • (A) is an overall view of a screen extending frame 80
  • (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A)
  • (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 80 is assembled with four frame members 81 a , 81 b , 81 c , and 81 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 82 a , 82 b , 82 c , and 82 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • All of the four frame members 81 a , 81 b , 81 c , and 81 d have the same cross-sectional shape, the engagement groove 82 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 81 a as shown by the cross-section in FIG. 11 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 82 a , 82 b , 82 c , and 82 d , and then the extending jig is extended and reduced, the screen extending frame 80 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the screen extending frame 80 configured by combining the four frame members 81 a , 81 b , 81 c , and 81 d is pressed in the inward direction using a tool such as the screen extending jig, a clamp, a vise, or the like, the open ends of the cut grooves 83 a , 83 b , 83 c , and 83 d are reduced, and accordingly, the frame members 81 a , 81 b , 81 c , and 81 d inwardly bend, causing the screen extending frame 80 to be reduced.
  • a tool such as the screen extending jig, a clamp, a vise, or the like
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state of not being compressed, and as the open ends of the cut grooves 83 a , 83 b , 83 c , and 83 d , are widely open, the frame members 81 a , 81 b , 81 c , and 81 d extend to the outer side to extend the screen extending frame 80 , and therefore, a tensile force is exerted on the screen attached to the extended screen extending frame.
  • Embodiment 7 that is obtained by modifying Embodiment 6 is shown in FIG. 12 .
  • FIG. 12 (A) is an overall view of a screen extending frame 90 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 90 is assembled with four frame members 91 a , 91 b , 91 c , and 91 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 92 a , 92 b , 92 c , and 92 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • a narrow cut groove 94 ab that is orthogonal to the outer side from the inner side at the joint with the frame member 91 b and a narrow cut groove 94 ad that is orthogonal to the outer side from the inner side at the joint thereof with the frame member 91 d
  • the frame member 91 b a narrow cut groove 94 ba that is orthogonal to the outer side from the inner side at the joint with the frame member 91 a and a narrow cut groove 94 bc that is orthogonal to the outer side from the inner side at the joint thereof with the frame member 91 c
  • on the frame member 91 c a narrow cut groove 94 cb that is orthogonal to the outer side from the inner side at the joint with the frame member 91 b and a narrow cut groove 94 cd that is orthogonal to the outer side from the inner side at the joint thereof with the frame member 91 d
  • the frame member 91 d a narrow cut groove
  • All of the four frame members 91 a , 91 b , 91 c , and 91 d have the same cross-sectional shape, the engagement groove 92 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 91 a as shown by the cross-section in FIG. 12 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 92 a , 92 b , 92 c , and 92 d , and the extending jig is extended and reduced, the screen extending frame 90 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the open ends of the cut grooves 93 a , 93 b , 93 c , and 93 d that are formed in the outer side are open wide, the open ends of the cut grooves 94 ab , 94 ba , 94 bc , 94 cb , 94 cd , 94 dc , 94 da , and 94 ad that are formed in the inner side are reduced, and accordingly, the frame members 91 a , 91 b , 91 c , and 91 d inwardly bend, causing the screen extending frame 10 to be reduced.
  • a tool such as the screen extending jig, a clamp, a vise, or the like
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state of not being compressed, and as the open ends of the cut grooves 93 a , 93 b , 93 c , and 93 d are reduced and the open ends of the cut grooves 94 ab , 94 ba , 94 bc , 94 cb , 94 cd , 94 dc , 94 da , and 94 ad are widely open, the frame members 91 a , 91 b , 91 c , and 91 d extend to extend the screen extending frame 90 , and therefore, a tensile force is exerted on the screen attached to the extended screen extending frame.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 93 a , 93 b , 93 c , 93 d , 94 ab , 94 ba , 94 bc , 94 cb , 94 cd , 94 dc , 94 da , and 94 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 8 that is another example obtained by modifying Embodiment 6 is shown in FIG. 13 .
  • FIG. 13 (A) is an overall view of a screen extending frame 100 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 100 is assembled with four frame members 101 a , 101 b , 101 c , and 101 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 102 a , 102 b , 102 c , and 102 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • a cut groove 104 ab that is orthogonal to the inner side from the outer side at the joint with the frame member 101 b and a cut groove 104 ad that is orthogonal to the inner side from the outer side at the joint thereof with the frame member 101 d
  • a cut groove 104 ba that is orthogonal to the inner side from the outer side at the joint with the frame member 101 a and a cut groove 104 bc that is orthogonal to the inner side from the outer side at the joint thereof with the frame member 101 c
  • on the frame member 101 c a cut groove 104 cb that is orthogonal to the inner side from the outer side at the joint with the frame member 101 b and a cut groove 104 cd that is orthogonal to the inner side from the outer side at the joint thereof with the frame member 101 d
  • a cut groove 104 dc that is orthogonal to the inner side from the outer side from the outer side from the outer side from the outer side from the outer side from the joint thereof with the frame member 101
  • All of the four frame members 101 a , 101 b , 101 c , and 101 d have the same cross-sectional shape, the engagement groove 102 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 101 a as shown by the cross-section in FIG. 13 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 102 a , 102 b , 102 c , and 102 d , and the extending jig is extended and reduced, the screen extending frame 100 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the open ends of the cut grooves 103 a , 103 b , 103 c , and 103 d are widely open, and open ends of the cut grooves 104 ab , 104 ba , 104 bc , 104 cb , 104 cd , 104 dc , 104 da , and 104 ad are reduced, and accordingly, the frame members 101 a , 101 b , 101 c , and 101 d inwardly bend, causing the screen extending frame 100 to be reduced.
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state of not being compressed, and as the open ends of the cut grooves 103 a , 103 b , 103 c , and 103 d are reduced and the open ends of the cut grooves 104 ab , 104 ba , 104 bc , 104 cb , 104 cd , 104 dc , 104 da , and 104 ad are reduced, the frame members 101 a , 101 b , 101 c , and 101 d outwardly extend to extend the screen extending frame 100 , and therefore, a tensile force is exerted on the screen attached to the screen extending frame thus extended.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 103 a , 103 b , 103 c , 103 d , 104 ab , 104 ba , 104 bc , 104 cb , 104 cd , 104 dc , 104 da , and 104 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 9 that is another example obtained by modifying Embodiment 6 is shown in FIG. 14 .
  • FIG. 14 (A) is an overall view of a screen extending frame 110 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 110 is assembled with four frame members 111 a , 111 b , 111 c , and 111 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 112 a , 112 b , 112 c , and 112 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • a narrow inclined cut groove 114 ab that leads to the outer side from the inner side of the joint with the frame member 111 b and a narrow inclined cut groove 114 ad that leads to the outer side from the inner side of the joint thereof with the frame member 111 d
  • on the frame member 111 b a narrow inclined cut groove 114 ba that leads to the outer side from the inner side of the joint with the frame member 111 a and a narrow inclined cut groove 114 bc that leads to the outer side from the inner side of the joint thereof with the frame member 111 c
  • on the frame member 111 c a narrow inclined cut groove 114 cb that leads to the outer side from the inner side of the joint with the frame member 111 b and a narrow inclined cut groove 114 cd that leads to the outer side from the inner side of the joint thereof with the frame member 111 d
  • on the frame member 111 d a narrow inclined cut groove 114 dc that leads to the outer side
  • All of the four frame members 111 a , 111 b , 111 c , and 111 d have the same cross-sectional shape, the engagement groove 112 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 111 a as shown by the cross-section in FIG. 14 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 112 a , 112 b , 112 c , and 112 d , and the extending jig is extended and reduced, the screen extending frame 110 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the open ends of the cut grooves 113 a , 113 b , 113 c , and 113 d that are formed in the outer side are widely open, and open ends of the cut grooves 114 ab , 114 ba , 114 bc , 114 cb , 114 cd , 114 dc , 114 da , and 114 ad that are formed in the inner side are reduced, and accordingly, the frame members 111 a , 111 b , 111 c , and 111 d inwardly bend, causing the screen extending frame 110 to be reduced.
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state not being compressed, and as the open ends of the cut grooves 113 a , 113 b , 113 c , and 113 d that are formed in the outer side are reduced and the open ends of the cut grooves 114 ab , 114 ba , 114 bc , 114 cb , 114 cd , 114 dc , 114 da , and 114 ad that are formed in the inner side are widely open, the frame members 111 a , 111 b , 111 c , and 111 d extend outwardly to extend the screen extending frame 110 , and therefore, a tensile force is exerted on the screen attached to the screen extending frame thus extended.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 113 a , 113 b , 113 c , 113 d , 114 ab , 114 ba , 114 bc , 114 cb , 114 cd , 114 dc , 114 da , and 114 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 10 that is another example obtained by modifying Embodiment 6 is shown in FIG. 15 .
  • FIG. 15 (A) is an overall view of a screen extending frame 120 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 120 is assembled with four frame members 121 a , 121 b , 121 c , and 121 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 122 a , 122 b , 122 c , and 122 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • a narrow inclined cut groove 124 ab that leads to the inner side from the outer side at the joint with the frame member 121 b and a narrow inclined cut groove 124 ad that leads to the inner side from the outer side at the joint thereof with the frame member 121 d
  • a narrow inclined cut groove 124 ba that leads to the inner side from the outer side at the joint with the frame member 121 a and a narrow inclined cut groove 124 bc that leads to the inner side from the outer side at the joint thereof with the frame member 121 c
  • on the frame member 121 c a narrow inclined cut groove 124 cb that leads to the inner side from the outer side at the joint with the frame member 121 b and a narrow inclined cut groove 124 cd that leads to the inner side from the outer side at the joint thereof with the frame member 121 d
  • the frame member 121 d a narrow inclined cut groove 124 dc that leads to the inner side
  • All of the four frame members 121 a , 121 b , 121 c , and 121 d have the same cross-sectional shape, the engagement groove 122 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 121 a as shown by the cross-section in FIG. 15 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 122 a , 122 b , 122 c , and 122 d , and the extending jig is extended and reduced, the screen extending frame 120 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the open ends of the cut grooves 123 a , 123 b , 123 c , 123 d , 124 ab , 124 ba , 124 bc , 124 cb , 124 cd , 124 dc , 124 da , and 124 ad are widely open, and accordingly, the frame members 121 a , 121 b , 121 c , and 121 d inwardly bend, causing the screen extending frame 120 to be reduced.
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state not being compressed, and as the open ends of the cut grooves 123 a , 123 b , 123 c , 123 d , 124 ab , 124 ba , 124 bc , 124 cb , 124 cd , 124 dc , 124 da , and 124 ad are reduced, the frame members 121 a , 121 b , 121 c , and 121 d extend outwardly to extend the screen extending frame 120 , and therefore, a tensile force is exerted on the screen fixed to the extended screen extending frame.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 123 a , 123 b , 123 c , 123 d , 124 ab , 124 ba , 124 bc , 124 cb , 124 cd , 124 dc , 124 da , and 124 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 11 is shown in FIG. 16 .
  • FIG. 16 (A) is an overall view of a screen extending frame 130 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 130 is assembled with four frame members 131 a , 131 b , 131 c , and 131 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 132 a , 132 b , 132 c , and 132 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • a narrow cut groove 134 ab that leads to the inner side orthogonally from the outer side at the joint with the frame member 131 b and a narrow cut groove 134 ad that leads to the inner side orthogonally from the outer side at the joint thereof with the frame member 131 d
  • a narrow cut groove 134 ba that leads to the inner side orthogonally from the outer side at the joint with the frame member 131 a and a narrow cut groove 134 bc that leads to the inner side orthogonally from the outer side at the joint thereof with the frame member 131 c
  • on the frame member 131 c a narrow cut groove 134 cb that leads to the inner side orthogonally from the outer side at the joint with the frame member 131 b and a narrow cut groove 134 cd that leads to the inner side orthogonally from the outer side at the joint thereof with the frame member 131 d
  • a narrow cut groove 134 ab that leads to the inner side orthogonally from the outer side at the joint with the frame member 131 b and
  • All of the four frame members 131 a , 131 b , 131 c , and 131 d have the same cross-sectional shape, the engagement groove 132 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 131 a as shown by the cross-section in FIG. 16 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 132 a , 132 b , 132 c , and 132 d , and the extending jig is extended and reduced, the screen extending frame 130 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the screen extending frame 130 configured by combining the four frame members 131 a , 131 b , 131 c , and 131 d is pressed in the inward direction using a tool such as the screen extending jig, a clamp, a vise, or the like, the open ends of the cut grooves 134 ab , 134 ba , 134 bc , 134 cb , 134 cd , 134 dc , 134 da , and 134 ad that are formed in the outer side are reduced, and accordingly, the frame members 131 a , 131 b , 131 c , and 131 d inwardly bend, causing the screen extending frame 130 to be reduced.
  • a tool such as the screen extending jig, a clamp, a vise, or the like
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state not being compressed, and as the open ends of the cut grooves 134 ab , 134 ba , 134 bc , 134 cb , 134 cd , 134 dc , 134 da , and 134 ad that are formed in the outer side are widely open, the frame members 131 a , 131 b , 131 c , and 131 d extend outwardly to extend the screen extending frame 110 , and therefore, a tensile force is exerted on the screen attached to the extended screen extending frame.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 134 ab , 134 ba , 134 bc , 134 cb , 134 cd , 134 dc , 134 da , and 134 ad enables protection of the open ends and supplementation of elasticity.
  • Embodiment 12 is shown in FIG. 17 .
  • (A) is an overall view of a screen extending frame 140
  • (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A)
  • (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 140 is assembled with four frame members 141 a , 141 b , 141 c , and 141 d to be formed in a rectangular shape, and structured by fixedly joined by means of welding, or the like.
  • engagement grooves 142 a , 142 b , 142 c , and 142 d with which engagement elements formed in a screen extending jig are engaged each are formed.
  • a narrow cut groove 144 ab that leads to the outer side orthogonally from the inner side at the joint with the frame member 141 b and a narrow cut groove 144 ad that leads to the outer side orthogonally from the inner side at the joint thereof with the frame member 141 d
  • a narrow cut groove 144 ba that leads to the outer side orthogonally from the inner side at the joint with the frame member 141 a and a narrow cut groove 144 bc that leads to the outer side orthogonally from the inner side at the joint thereof with the frame member 141 c
  • on the frame member 141 c a narrow cut groove 144 cb that leads to the outer side orthogonally from the inner side at the joint with the frame member 141 b and a narrow cut groove 144 cd that leads to the outer side orthogonally from the inner side at the joint thereof with the frame member 141 d
  • a narrow cut groove 144 ab that leads to the outer side orthogonally from the inner side at the joint with the frame member 141 b and
  • All of the four frame members 141 a , 141 b , 141 c , and 141 d have the same cross-sectional shape, the engagement groove 142 a with which an engagement element of the screen extending jig is engaged is formed on one face of the frame member 141 a as shown by the cross-section in FIG. 17 (C), and the opposite face is set to be a plane in order to attach the screen thereto.
  • the engagement elements of the extending jig are engaged with the engagement grooves 142 a , 142 b , 142 c , and 142 d , and the extending jig is extended and reduced, the screen extending frame 140 extends and reduces, and accordingly, the tensile force to the screen is adjusted.
  • the screen extending frame 140 configured by combining the four frame members 141 a , 141 b , 141 c , and 141 d is pressed in the inward direction using a tool such as the screen extending jig, a clamp, a vise, or the like, the open ends of the cut grooves 143 ab , 143 ba , 143 bc , 143 cb , 143 cd , 143 dc , 143 da , and 143 ad that are formed in the inner side are reduced, and accordingly, the frame members 141 a , 141 b , 141 c , and 141 d inwardly bend, causing the screen extending frame 140 to be reduced.
  • a tool such as the screen extending jig, a clamp, a vise, or the like
  • the screen is, then, fixed to the reduced screen extending frame by means of adhesion, or the like.
  • the frame members that inwardly bend will all return to the shape of the state not being compressed, and as the open ends of the cut grooves 144 ab , 144 ba , 144 bc , 144 cb , 144 cd , 144 dc , 144 da , and 144 ad that are formed in the inner side are widely open, the frame members 141 a , 141 b , 141 c , and 141 d extend outwardly to extend the screen extending frame 140 , and therefore, a tensile force is exerted on the screen attached to the extended screen extending frame.
  • Insertion of a solid elastic element such as natural rubber or synthetic rubber or a non-solid spring such as a plate spring or a coil spring into the cut grooves 144 ab , 144 ba , 144 bc , 144 cb , 144 cd , 144 dc , 144 da , and 144 ad enables protection of the open ends and supplementation of elasticity.
  • the frame members each of which is solid, provide flexibility by forming cut grooves at the coupling areas of the frame members in the width direction.
  • a solid screen extending frame gains flexibility by a way of forming grooves in the both sides of the frame at the coupling areas of the frame members in the thickness direction.
  • two grooves on one side and one groove on the other side of a joint of solid frame members are formed in the direction connecting the outer angle and the inner angle.
  • two grooves on one side and three grooves on the other side of a joint of solid frame members are formed in the direction connecting the outer angle and the inner angle.
  • Embodiment 15 shown in FIG. 20 in the solid frame members two grooves on one side and one groove on the other side are formed respectively at the vicinity of the joint of frame members in the width direction.
  • a bendable flexible part is configured by these grooves.
  • a solid screen extending frame gains flexibility at the joint thereof with through holes formed on the joint.
  • Embodiment 17 shown in FIG. 22 square-shaped through holes are formed along the direction connecting the inner angle and the outer angle of the joint of solid frame members, and the shape of the through holes are elongated along the arrangement direction.
  • a hollow-bodied screen extending frame gains flexibility at the joint of frame members by cut grooves formed on the joint.
  • the repulsive force is generated strong in the center of the sides of the frame, and weaker as close to the vicinity of couplings of the frame.
  • each of square-shaped hollow frame members one notch is formed on both sides in the vicinity of the joint of frame members in the width direction.
  • a bendable flexible part is configured with these notches.
  • Embodiment 19 shown in FIG. 24 in each of square-shaped hollow frame members two notches on one side and one notch on the other side are formed respectively in the vicinity of the joint of frame members in the width direction.
  • a bendable flexible part is configured with such grooves.
  • a Dame member is constituted by a two-tier hollow body including a hollow body having a plane to which a screen is attached and a hollow body having a plane to which a screen is not attached, and only one tier of the hollow bodies is formed with a notch.
  • the upper half part of the frame is transformed to a rhombus shape by the notch, and a repulsive force to return is generated in the vicinity of the joint, it is possible to apply a tensile force also in the vicinity of the joint and therefore, a screen can be extended in overall uniform.
  • the lower half part thereof does not have a notch, the lower half part constitutes a frame with strength.
  • a notch or a through hole is formed on a wall face in the thickness direction of the frame side in the upper half part of the hollow body in the thickness direction in order to lower the strength of the frame side and to make deformation easy.
  • the lower half part constitutes the frame with strength, that has the same effect as making the thickness in the vertical portion of the upper half part of the two-tier hollow body thin and the thickness in the vertical portion of the lower half part of the two-tier hollow body thick.
  • Embodiment 20 described referring to FIGS. 26 and 27 the configuration of end portions of a screen extending frame member allows the screen extending frame to bend using the elasticity of the frame member itself which constitutes the screen extending frame.
  • Embodiment 21 shown in FIG. 26 is obtained by applying the invention of the present application to the related art shown in FIG. 2 .
  • the function of the Embodiment is described referring to FIG. 27 .
  • FIG. 26 (A) is an overall view of a screen extending frame 150 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 150 is constituted by two parallel frame members 151 a and 151 c , two parallel frame members 151 b and 151 d that are arranged orthogonal to the above frame members, and four corner members 153 a , 153 b , 153 c , and 153 d which combine the four fume members 153 a only out of the four corner members is shown in FIG. 26 (B).
  • Both ends of the frame members 151 a and 151 b shown as an example of the four frame members 151 a , 151 b , 151 c , and 151 d have inclined faces 157 a and 157 b with an angle of, for example 42°, which is a little smaller than 45° with respect to the length direction of the frame members toward the inner side of the screen extending frame 150 .
  • both ends of the four frame members 151 a , 151 b , 151 c , and 151 d do not contact on a respective complete one plane with each other, and gaps 158 a , 158 b , 158 c , and 158 d with an angle of 4° are present in the inner side of the frame, as shown in FIG. 26 (A).
  • the angle of the gap is not limited to 4°.
  • All of the four frame members 151 a , 151 b , 151 c , and 151 d have the cross-sectional shape shown in the representative example in FIG. 26 (C), and the frame member 151 a shown as an example is formed with an insertion hole 155 a therein, and an engagement groove 152 a with which an engagement element of a screen extending jig engages on one face, and the opposite face is set to be a plane so as to attach a screen.
  • the corner member 153 a is constituted by two corner plates 156 a and 156 b orthogonal to each other in an L shape, and the corner plates 156 a and 156 b have a cross-sectional shape each which can comfortably enter and slide in the insertion hole 156 a of the frame member 151 a and the insertion hole 156 b of the frame member 151 b respectively.
  • the corner plate 156 a is inserted into the insertion hole 156 b in the white arrow direction
  • the corner plate 156 b is inserted into the insertion hole 156 b in the white arrow direction
  • the four frame members 151 a , 151 b , 151 c , and 151 d , and the four corner members 153 a , 153 b , 153 c , and 153 d are assembled, and then, the screen extending frame 150 with the gaps 158 a , 158 b , 158 c , and 158 d is configured.
  • the screen is attached to the screen extending frame 150 , engagement elements of the extending jig are engaged with engagement grooves 152 a , 152 b , 152 c , and 152 d , and the corner plates inserted in the insertion holes slide in the insertion holes when the extending jig extends and reduces, and accordingly, the screen extending frame 150 extends and reduces, whereby a tensile force is exerted on the screen.
  • FIG. 27 the function of the screen extending frame shown in FIG. 25 is described.
  • FIG. 27 (A) shows the state of the screen extending frame before the screen is attached thereto
  • FIG. 27 (B) shows the state of the screen extending frame immediately before the screen is attached thereto.
  • the screen extending frame 150 configured by assembling the four frame members 151 a , 151 b , 151 c , and 151 d and the four corner members 153 a , 153 b , 153 c , and 153 d not shown in the drawing is pressed in the black arrow directions using a tool such as a screen extending jig, a clamp, a vise, or the like not shown in the drawing.
  • each frame member is deformed, the gap 158 a between the frame members 151 a and 151 b , the gap 158 b between the frame members 151 b and 151 c , the gap 158 c between the frame members 151 c and 151 d , and the gap 158 d between the frame members 151 d and 151 a are reduced to form gaps 158 a ′, 158 b ′, 158 c ′, and 158 d ′, or disappear, and each of the frame members are inwardly reduced as shown by 151 a ′, 151 b ′, 151 c ′, and 151 d′.
  • the frame members 151 a ′, 151 b ′, 151 c ′, and 151 d ′ released from the pressing force will return to the state of not bending with their own elasticity.
  • insertion of a solid elastic element such as natural rubber, synthetic rubber, or the like, or a plate or a linear spring, or the like shown in Embodiment 2 of FIG. 6 into the gaps 158 a , 158 b , 158 c , and 158 d also can further improve performance of exerting a tensile force on the screen.
  • Embodiment 22 shown in FIG. 28 is obtained by applying the invention of the present application to the related art shown in FIG. 3 similarly to Embodiment 21 . Its function is described referring to FIG. 29 .
  • FIG. 28 (A) is an overall view of a screen extending frame 160 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 160 is constituted by two parallel frame members 161 a and 161 c , two parallel frame members 161 b and 161 d that are arranged orthogonal to the above frame members, and four corner members 163 a , 163 b , 163 c , and 163 d which combine the four frame members.
  • FIG. 28 (B) Only 163 a out of the four corner members is shown in FIG. 28 (B).
  • engagement grooves 162 a , 162 b , 162 c , and 162 d with which engagement elements formed on a screen extending jig are engaged each are formed.
  • All of the four frame members 161 a , 161 b , 161 c , and 161 d have the same cross-sectional shape.
  • an insertion hole 46 a is formed inside thereof, the engagement groove 162 a with which an engagement element of a screen extending jig engages is formed on one face, and the opposite face is set to be a plane so as to attach a screen.
  • Both ends of the four frame members 161 a , 161 b , 161 c , and 161 d have inclined faces with an angle of, for example 45? with respect to the length direction, which is inclined to the inner side of the screen extending frame 160 .
  • All of the four corner members 163 a , 163 b , 163 c , and 163 d have the same shape, and 163 a shown as a representative example in FIG. 28 (B) is constituted by two corner plates 166 a and 166 b orthogonal to each other in an L shape, and the corner plates 166 a and 166 b have a cross-sectional shape each that enables comfortable insertion and sliding in the insertion hole 165 a of the frame member 161 a and the insertion hole 165 b of the frame member 161 b respectively.
  • the screen extending frame 160 is configured in such a way that the corner plate 166 a is inserted into the insertion hole 165 b of the frame member 161 a in the arrow direction, the corner plate 166 b is inserted into the insertion hole 45 b of the frame member 161 b in the arrow direction, and thereby, the four frame members 161 a , 161 b , 161 c , and 161 d , and the four corner members 163 a , 163 b , 163 c , and 163 d are assembled.
  • the screen is attached to the screen extending frame 160 , the engagement elements of the extending jig are engaged with the engagement grooves 162 a , 162 b , 162 c , and 162 d , and when the extending jig is extended and reduced, the corner plates inserted in the insertion holes slide in the insertion holes and accordingly, the screen extending frame 160 extends and reduces, whereby a tensile force is exerted on the screen.
  • an elastic element 167 a is disposed at the location where the corner plates 166 a and 166 b of the corner member 163 a orthogonally contact with each other.
  • FIG. 28 (A) shows other elastic elements 168 b , 168 c , and 168 d in addition to the elastic element 167 a.
  • a solid elastic element such as rubber, or a hollow elastic element such as a plate spring or a coil spring can be used.
  • the elastic element 167 a it is easy to provide the elastic element 167 a by being divided into two, one of which is provided from the corner plate 166 a and the other one of which is provided from the corner plate 166 b.
  • the function of the screen extending frame 160 is described referring to FIG. 29 .
  • (A) shows the state of the screen extending frame before the screen is attached thereto
  • (B) shows the state of the screen extending frame immediately before the screen is attached thereto.
  • the screen extending frame 160 configured by assembling the four frame members 161 a , 161 b , 161 c , and 161 d and the four corner members 163 a , 163 b , 163 c , and 163 d not shown in the drawing is pressed in the black arrow directions using a tool such as the screen extending jig, a clamp, a vise, or the like not shown in the drawing.
  • an elastic element 167 a ′ provided in the corner member 163 a , an elastic element 167 b ′ provided in the corner member 163 b , an elastic element 167 c ′, provided in the corner member 163 c , and an elastic element 167 d ′ provided in the corner member 163 d are all put in a compressed state.
  • the screen extending frame 160 becomes a reduced screen extending frame 160 ′.
  • the screen is fixed to the screen extending frame 160 ′ by means of adhesion, or the like.
  • the elastic elements 167 a ′, 167 b ′, 167 c ′, and 167 d ′ released from the pressing force will all return to the state of not compressed, thereby the screen extending frame 160 ′ extends, and therefore, a tensile force is exerted on the screen attached to the screen extending frame 160 ′ thus extended.
  • Embodiment 23 shown in FIG. 30 is obtained by applying the invention of the present application to the related art shown in FIG. 3 . Its function of the embodiment is described referring to FIG. 31 .
  • FIG. 30 (A) is an overall view of a screen extending frame 170 , (B) is an enlarged exploded view of a portion indicated by a dashed circle B in (A), and (C) is a cross-sectional view of a portion indicated by a dashed line C in (B).
  • the screen extending frame 170 is constituted by two parallel frame members 171 a and 171 c , two parallel frame members 171 b and 171 d that are arranged orthogonal to the above frame members, and four corner members 173 a , 173 b , 173 c , and 173 d which combine the four frame members.
  • engagement grooves 172 a , 172 b , 172 c , and 172 d with which engagement elements formed on a screen extending jig are engaged each are formed.
  • All of the four frame members 171 a , 171 b , 171 c , and 171 d have the same cross-sectional shape.
  • an insertion hole 55 a is formed inside thereof, the engagement groove 172 a with which an engagement element of a screen extending jig engages is formed on one face, and the opposite face is set to be a plane so as to attach a screen.
  • both ends of the four frame members 171 a , 171 b , 171 c , and 171 d have faces with an angle of 90? with respect to the length direction.
  • the corner member 173 a shown as a representative example in FIG. 30 (B) includes a main body 174 a having a square-shape on its upper surface, provided with two corner plates 176 a and 176 b orthogonal to each other.
  • the corner plates 176 a and 176 b have a cross-sectional shape that enables comfortable insertion and sliding in the insertion hole 175 a of the frame member 171 a and the insertion hole 175 b of the frame member 171 b respectively.
  • the screen extending frame 170 is configured in such a way that the corner plate 176 a is inserted into the insertion hole 175 b of the frame member 171 a in the arrow direction, the corner plate 176 b is inserted into the insertion hole 175 b of the frame member 171 b in the arrow direction, and thereby, the four frame members 171 a , 171 b , 171 c , and 171 d , and the four corner members 173 a , 173 b , 173 c , and 173 d are assembled.
  • the screen is attached to the screen extending frame 170 , the engagement elements of the extending jig are engaged with the engagement grooves 172 a , 172 b , 172 c , and 172 d , and when the extending jig is extended and reduced, the corner plates inserted in the insertion holes slide in the insertion holes and accordingly, the screen extending frame 170 extends and reduces, whereby a tensile force exerted on the screen is adjusted.
  • an elastic element 177 a is provided in the corner plate 176 a at the location where the corner member 173 a contacts the frame member 171 a
  • an elastic element 177 b is provided in the corner plate 176 b at the location where the corner member 173 a contacts the frame member 171 b.
  • elastic elements 178 b and 178 c in each of two corner plates of the corner member 173 b ; elastic elements 177 c and 177 d in each of two corner plates of the corner member 173 c ; and elastic elements 178 d and 178 a in each of two corner plates of the corner member 173 d .
  • a solid elastic element such as natural rubber or synthetic rubber, or a hollow elastic element such as a plate spring or a coil spring can be used.
  • the function of the screen extending frame 170 is described referring to FIG. 30 .
  • (A) shows the state of the screen extending frame before the screen is attached thereto
  • (B) shows the state of the screen extending frame immediately before the screen is attached thereto.
  • the screen extending frame 170 configured by assembling the four frame members 171 a , 171 b , 171 c , and 171 d and the four corner members 173 a , 173 b , 173 c , and 173 d is pressed in the black arrow directions using a tool such as a screen extending jig, a clamp, a vise, or the like not shown in the drawing.
  • the screen is, then, fixed to the reduced screen extending frame 170 ′ by means of adhesion, or the like.
  • the screen extending frame of the present invention since a tensile force is exerted on the screen thus attached thereto, even in the state of not using an extending jig, it is possible to keep the screen to be in tension even when the screen is simply fixed in the screen extending frame, and printing is possible without using the screen extending jig with no sagging in the screen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Overhead Projectors And Projection Screens (AREA)
US13/522,606 2010-01-29 2011-01-28 Screen extending frame Abandoned US20120285637A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2010018703 2010-01-29
JP2010-018704 2010-01-29
JP2010018703 2010-01-29
JP2010018704 2010-01-29
PCT/JP2011/051722 WO2011093437A1 (ja) 2010-01-29 2011-01-28 スクリーン張設枠

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Related Child Applications (1)

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US15/664,574 Division US20180027662A1 (en) 2010-01-29 2017-07-31 Screen extending frame

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US20120285637A1 true US20120285637A1 (en) 2012-11-15

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US13/522,606 Abandoned US20120285637A1 (en) 2010-01-29 2011-01-28 Screen extending frame
US15/664,574 Abandoned US20180027662A1 (en) 2010-01-29 2017-07-31 Screen extending frame
US16/838,502 Abandoned US20200236790A1 (en) 2010-01-29 2020-04-02 Screen extending frame

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US15/664,574 Abandoned US20180027662A1 (en) 2010-01-29 2017-07-31 Screen extending frame
US16/838,502 Abandoned US20200236790A1 (en) 2010-01-29 2020-04-02 Screen extending frame

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US (3) US20120285637A1 (zh)
EP (1) EP2529931A4 (zh)
JP (2) JP5903274B2 (zh)
KR (1) KR20120127436A (zh)
CN (1) CN102762382A (zh)
SG (1) SG182775A1 (zh)
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KR102173903B1 (ko) * 2014-05-08 2020-11-06 삼성디스플레이 주식회사 라미네이트 장치
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CN104309281A (zh) * 2014-11-06 2015-01-28 赵宽学 平板丝印操作台
JP6612511B2 (ja) * 2015-03-23 2019-11-27 普烈 粕谷 メタルマスク張設治具及びメタルマスク
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TW201200356A (en) 2012-01-01
WO2011093437A1 (ja) 2011-08-04
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SG182775A1 (en) 2012-09-27
JPWO2011093437A1 (ja) 2013-06-06
EP2529931A4 (en) 2014-06-18
JP6318128B2 (ja) 2018-04-25
US20200236790A1 (en) 2020-07-23
US20180027662A1 (en) 2018-01-25
KR20120127436A (ko) 2012-11-21
JP5903274B2 (ja) 2016-04-13
TWI596012B (zh) 2017-08-21
EP2529931A1 (en) 2012-12-05

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