JP6704081B1 - Method for processing end surface of laminated body, method for manufacturing end surface processed film, and end surface processing apparatus - Google Patents

Method for processing end surface of laminated body, method for manufacturing end surface processed film, and end surface processing apparatus Download PDF

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JP6704081B1
JP6704081B1 JP2019172801A JP2019172801A JP6704081B1 JP 6704081 B1 JP6704081 B1 JP 6704081B1 JP 2019172801 A JP2019172801 A JP 2019172801A JP 2019172801 A JP2019172801 A JP 2019172801A JP 6704081 B1 JP6704081 B1 JP 6704081B1
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contact member
contact
laminate
laminated body
processing
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JP2021011008A (en
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幹士 藤井
幹士 藤井
政仁 高橋
政仁 高橋
到 鈴木
到 鈴木
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Sumitomo Chemical Co Ltd
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Priority to KR1020200081371A priority patent/KR20210004864A/en
Priority to CN202010638132.2A priority patent/CN112170909A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/06—Face-milling cutters, i.e. having only or primarily a substantially flat cutting surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/069—Work-clamping means for pressing workpieces against a work-table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Polarising Elements (AREA)
  • Jigs For Machine Tools (AREA)
  • Milling Processes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Laminated Bodies (AREA)

Abstract

【課題】高い加工精度を実現できる積層体の端面の加工方法等を提供する。【解決手段】本発明は複数のフィルム１２を有する積層体１０の端面ＥＦを加工する方法である。この方法は、第１接触部材２１を有する第１治具２０及び第２接触部材３１を有する第２治具３０により、積層体１０の厚み方向の両側から、第１接触部材２１及び第２接触部材３１が積層体１０に接触するように、積層体１０を押圧して積層体１０を固定する工程と、固定された積層体１０の端面ＥＦを加工する工程と、を備える。押圧する工程において、第１接触部材２１における積層体１０との接触面Ａにおける圧力の最大値及び最小値をそれぞれＰｍａｘ及びＰｍｉｎとしたときに、Ｐｍｉｎ≧０．４Ｐｍａｘを満たす。【選択図】図１PROBLEM TO BE SOLVED: To provide a method of processing an end surface of a laminated body and the like which can realize high processing accuracy. The present invention is a method of processing an end surface EF of a laminate 10 having a plurality of films 12. This method uses the first jig 20 having the first contact member 21 and the second jig 30 having the second contact member 31 to apply the first contact member 21 and the second contact member 21 from both sides in the thickness direction of the laminated body 10. A step of pressing the laminated body 10 to fix the laminated body 10 so that the member 31 contacts the laminated body 10 and a step of processing the end face EF of the fixed laminated body 10 are provided. In the pressing step, when the maximum value and the minimum value of the pressure on the contact surface A of the first contact member 21 with the stacked body 10 are Pmax and Pmin, respectively, Pmin≧0.4Pmax is satisfied. [Selection diagram] Figure 1

Description

本発明は、積層体の端面を加工する方法、端面加工フィルムの製造方法、及び、端面加工装置に関する。 The present invention relates to a method for processing an end surface of a laminate, a method for manufacturing an end surface processed film, and an end surface processing device.

従来より、一対の治具で複数のフィルムを有する積層体を厚み方向に押圧して積層体を固定した状態の下で、当該積層体の端面を研削等により加工する方法が知られている。 2. Description of the Related Art Conventionally, a method is known in which a laminate having a plurality of films is pressed by a pair of jigs in the thickness direction to fix the laminate, and the end surface of the laminate is processed by grinding or the like.

特開２００４−１６７６７２号公報JP, 2004-167672, A

しかしながら、従来の方法でも、複数のフィルムを有する積層体を十分に固定できず、各フィルムの加工精度が低下する場合があった。 However, even with the conventional method, the laminate having a plurality of films cannot be sufficiently fixed, and the processing accuracy of each film may decrease.

本発明は上記課題に鑑みてなされたものであり、高い加工精度を実現できる積層体の端面の加工方法等に関する。 The present invention has been made in view of the above problems, and relates to a method for processing an end surface of a laminated body, which can realize high processing accuracy.

本発明に係る方法は、複数のフィルムを有する積層体の端面を加工する方法であって、
第１接触部材及び第２接触部材により、前記積層体の厚み方向の両側から、前記第１接触部材及び第２接触部材が前記積層体に接触するように、前記積層体を押圧して前記積層体を固定する工程と、
固定された前記積層体の端面を加工する工程と、を備え、
前記押圧する工程において、前記第１接触部材における前記積層体との接触面Ａにおける圧力の最大値及び最小値をそれぞれＰｍａｘ及びＰｍｉｎとしたときに、
Ｐｍｉｎ≧０．４Ｐｍａｘを満たす。 A method according to the present invention is a method of processing an end surface of a laminate having a plurality of films,
The first contact member and the second contact member press the laminate so that the first contact member and the second contact member come into contact with the laminate from both sides in the thickness direction of the laminate, and the laminate is formed. The process of fixing the body,
A step of processing the end surface of the fixed laminated body,
In the pressing step, when the maximum value and the minimum value of the pressure on the contact surface A of the first contact member with the stacked body are Pmax and Pmin, respectively,
Pmin≧0.4Pmax is satisfied.

ここで、前記積層体は厚み方向から見て長手方向（Ｘ方向）を有する形状を有することができ、
前記第１接触部材は、前記積層体の前記長手方向の一端部及び他端部とそれぞれ接触する一端部及び他端部を有することができ、
前記押圧する工程では、前記第１接触部材の前記一端部及び他端部を前記第２接触部材に向かって相対的に押圧することができる。 Here, the laminate may have a shape having a longitudinal direction (X direction) when viewed from the thickness direction,
The first contact member may have one end and the other end in contact with the one end and the other end in the longitudinal direction of the stack, respectively.
In the pressing step, the one end portion and the other end portion of the first contact member can be relatively pressed toward the second contact member.

また、前記押圧する工程では、前記第１接触部材の前記一端部及び他端部と接触し、かつ、前記第１接触部材の前記一端部及び前記他端部の間の中央部と接触しない第１治具により、前記第１接触部材を前記第２接触部材に向かって相対的に押圧することができる。 In the pressing step, the first contact member is in contact with the one end portion and the other end portion, and is not in contact with the central portion between the one end portion and the other end portion of the first contact member. The first jig can relatively press the first contact member toward the second contact member.

また、前記第１治具は金属部材であることができる。 Further, the first jig may be a metal member.

また、前記積層体の全端面のうちの７５％以上を加工することができる。 Further, 75% or more of all the end faces of the laminate can be processed.

また、前記第１接触部材は金属部材であることができる。 The first contact member may be a metal member.

また、前記第２接触部材は、前記積層体の前記長手方向の一端部及び他端部とそれぞれ接触する一端部及び他端部を有することができる。 In addition, the second contact member may have one end and the other end that respectively contact one end and the other end in the longitudinal direction of the stacked body.

また、前記第１接触部材における前記積層体との接触面Ａの形状が環状であることができる。 Further, the shape of the contact surface A of the first contact member with the stacked body may be annular.

また、前記接触面Ａの環の幅は５〜２５ｍｍであることができる。 The width of the ring of the contact surface A may be 5 to 25 mm.

また、前記第１接触部材における前記積層体との接触面Ａの形状は矩形環状又は楕円環状であることができる。 Further, the shape of the contact surface A of the first contact member with the stacked body may be a rectangular ring or an elliptical ring.

また、前記加工する工程の前において、前記積層体の厚み方向から見て、固定された前記積層体の外側端は、前記第１接触部材における前記積層体との接触面Ａの外側端よりも、０．８〜１．５ｍｍ外側に突出していることができる。 In addition, before the step of processing, the outer end of the fixed laminate as viewed from the thickness direction of the laminate is more than the outer end of the contact surface A of the first contact member with the laminate. , 0.8 to 1.5 mm can be projected outward.

また、前記第２接触部材における前記積層体との接触面Ｅの形状は環状であることができる。 Further, the shape of the contact surface E of the second contact member with the stacked body may be annular.

また、前記加工する工程は、前記積層体の前記端面に対して、前記積層体の厚み方向と平行な軸周りに回転するエンドミルの側面を接触させる工程を含むことができる。 Further, the processing step may include a step of bringing a side surface of an end mill rotating around an axis parallel to a thickness direction of the laminated body into contact with the end surface of the laminated body.

また、第１接触部材の厚みは２〜１５ｍｍであることができる。 In addition, the thickness of the first contact member may be 2 to 15 mm.

また、前記複数のフィルムの内の少なくとも一つは樹脂フィルムであることができる。 At least one of the plurality of films may be a resin film.

本発明に係る端面加工フィルムの製造方法は、複数のフィルムを積層して積層体を得る工程と、前記積層体の端面を加工する工程と、を備え、上記の方法で前記積層体の端面を加工する。 The method for producing an end face processed film according to the present invention comprises a step of obtaining a laminated body by laminating a plurality of films, and a step of processing the end face of the laminated body, and the end face of the laminated body is formed by the above method. To process.

本発明に係る端面加工装置は、複数のフィルムを有する積層体の端面を加工する端面加工装置であって、
前記積層体の一方面と接触する接触面Ａを有する第１接触部材と、
前記第１接触部材に接続された第１治具と、
前記積層体の他方面と接触する接触面Ｅを有する第２接触部材と、
前記第２接触部材に接続された第２治具と、
前記第１治具及び前記第２治具の少なくとも一方を他方に向かって押圧して前記第１接触部材及び前記第２接触部材の間に前記積層体を固定する押圧部と、
前記第１接触部材及び前記第２接触部材の間に固定される前記積層体の端面を加工する加工部と、を備え、
前記第１接触部材は、押圧する方向から見て長手方向を有する形状を有し、
前記第１治具は、前記第１接触部材における前記長手方向の一端部及び他端部と接触し、かつ、前記第１接触部材の前記一端部及び前記他端部の間の中央部と接触しない形状を有する。 An end surface processing device according to the present invention is an end surface processing device for processing an end surface of a laminate having a plurality of films,
A first contact member having a contact surface A that contacts one surface of the laminate;
A first jig connected to the first contact member,
A second contact member having a contact surface E that contacts the other surface of the laminate,
A second jig connected to the second contact member;
A pressing portion that presses at least one of the first jig and the second jig toward the other to fix the laminated body between the first contact member and the second contact member;
A processing unit that processes the end surface of the laminated body that is fixed between the first contact member and the second contact member,
The first contact member has a shape having a longitudinal direction when viewed from the pressing direction,
The first jig is in contact with one end and the other end of the first contact member in the longitudinal direction, and is in contact with a central part between the one end and the other end of the first contact member. Not have a shape.

ここで、前記第１接触部材における前記積層体との接触面の形状が環状であることができる。 Here, the shape of the contact surface of the first contact member with the stacked body may be annular.

また、前記第２接触部材は、押圧する方向から見て、長手方向を有する形状を有し、
前記第１接触部材の長手方向と、前記第２接触部材の長手方向は平行であることができる。 Also, the second contact member has a shape having a longitudinal direction when viewed from the pressing direction,
The longitudinal direction of the first contact member and the longitudinal direction of the second contact member may be parallel.

本発明によれば、高い加工精度を実現できる積層体の端面の加工方法等が提供される。 According to the present invention, there is provided a method of processing an end surface of a laminated body and the like that can realize high processing accuracy.

図１は、本発明の１の実施形態に係る端面加工装置１００の概略側面図である。FIG. 1 is a schematic side view of an end surface processing apparatus 100 according to an embodiment of the present invention. 図２の（ａ）は図１中の第１治具２０及び第１接触部材２１の上面斜視図であり、図２の（ｂ）は図１中の第１治具２０及び第１接触部材２１の下面斜視図である。2A is a top perspective view of the first jig 20 and the first contact member 21 in FIG. 1, and FIG. 2B is the first jig 20 and the first contact member in FIG. 21 is a bottom perspective view of FIG. 図３は図２の（ａ）の第１治具２０及び第１接触部材２１の上面分解斜視図である。FIG. 3 is a top exploded perspective view of the first jig 20 and the first contact member 21 of FIG. 図４は図２の（ｂ）の第１治具２０及び第１接触部材２１の下面分解斜視図である。FIG. 4 is a bottom exploded perspective view of the first jig 20 and the first contact member 21 of FIG. 2B. 図５は、図１のＶ−Ｖ断面矢視図である。5 is a sectional view taken along the line VV of FIG. 図６の（ａ）は図１中の第２治具３０及び第２接触部材３１の上面斜視図であり、図６の（ｂ）は図１中の第２治具２０及び第２接触部材３１の下面分解斜視図である。6A is a top perspective view of the second jig 30 and the second contact member 31 in FIG. 1, and FIG. 6B is the second jig 20 and the second contact member in FIG. It is a lower surface disassembled perspective view of 31. 図７は、図１中の積層体１０の拡大図である。FIG. 7 is an enlarged view of the laminated body 10 in FIG. 図８は、他の実施形態に係る第１治具２０及び第１接触部材２１の下面分解斜視図である。FIG. 8 is a bottom exploded perspective view of the first jig 20 and the first contact member 21 according to another embodiment. 図９は、本発明の他の実施形態に係る端面加工装置１００の概略側面図である。FIG. 9 is a schematic side view of an end surface processing device 100 according to another embodiment of the present invention. 図１０は、本発明の他の実施形態にかかる端面加工装置の概略側面図である。FIG. 10 is a schematic side view of an end surface processing device according to another embodiment of the present invention. 図１１は、比較例２で用いた第１治具２０及び第１接触部材２１の下面分解斜視図である。FIG. 11 is a bottom exploded perspective view of the first jig 20 and the first contact member 21 used in Comparative Example 2.

図面を参照して本発明の一つの実施形態について説明する。図１は、本発明の実施形態に係る端面加工装置１００の側面図である。 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of an end surface processing device 100 according to an embodiment of the present invention.

本実施形態に係る端面加工装置１００は、第１接触部材２１、第１治具２０、第２接触部材３１、第２治具３０、固定部６１、押圧部６０、及び、加工部４０を主として備える。 The end surface processing apparatus 100 according to the present embodiment mainly includes the first contact member 21, the first jig 20, the second contact member 31, the second jig 30, the fixing portion 61, the pressing portion 60, and the processing portion 40. Prepare

図１に示すように、第１接触部材２１及び第２接触部材３１は、フィルムの積層体１０を厚み方向の両側から挟むように配置されている。図において、Ｘ，Ｙ方向が水平方向で、Ｚ方向が鉛直方向である。 As shown in FIG. 1, the first contact member 21 and the second contact member 31 are arranged so as to sandwich the film laminated body 10 from both sides in the thickness direction. In the figure, the X and Y directions are horizontal and the Z direction is vertical.

第１接触部材２１は、第２接触部材３１よりも上側に配置されている。第１接触部材２１の上に第１治具２０が設けられ、第２接触部材３１の下に第２治具３０が設けられている。 The first contact member 21 is arranged above the second contact member 31. The first jig 20 is provided on the first contact member 21, and the second jig 30 is provided below the second contact member 31.

図２の（ａ）及び（ｂ）、及び、図３及び図４に示すように、第１接触部材２１は矩形の板状部材であり、厚み方向がＺ方向（押圧する方向）に配置され、Ｚ方向から見て長手方向がＸ方向と平行となるように配置されている。 As shown in (a) and (b) of FIG. 2 and FIGS. 3 and 4, the first contact member 21 is a rectangular plate-shaped member, and the thickness direction thereof is arranged in the Z direction (pressing direction). , The longitudinal direction is parallel to the X direction when viewed from the Z direction.

図２及び図４に示すように、第１接触部材２１は、第２接触部材３１と対面する下面側に、フィルムの積層体１０と接触する平らな接触面Ａを有し、接触面Ａとは反対の上面側に平らな接触面Ｂを有する。 As shown in FIGS. 2 and 4, the first contact member 21 has a flat contact surface A that contacts the film stack 10 on the lower surface side that faces the second contact member 31. Has a flat contact surface B on the opposite upper surface side.

第１接触部材２１の矩形の大きさは、固定されるフィルムの積層体１０の表面（厚み方向と垂直な面）の外形形状より小さい範囲で適宜設定できる。 The rectangular size of the first contact member 21 can be appropriately set within a range smaller than the outer shape of the surface (the surface perpendicular to the thickness direction) of the laminated body 10 of the film to be fixed.

図５は、図１のＶ−Ｖ線に沿う断面矢視図である。第１接触部材２１の大きさは、加工前のフィルムの積層体１０の厚み方向の表面に第１接触部材２１の接触面Ａを接触させた際に、フィルムの積層体１０の厚み方向から見て、フィルムの積層体１０の端面（外側端）ＥＦが、第１接触部材２１における積層体１０との接触面Ａの外側端ＡＰよりも０．８ｍｍ〜１．５ｍｍ外側に突出するように設定することが好適である。ここで、厚み方向から見た接触面Ａの外側端ＡＰからの積層体の突出量をＴと呼ぶ。例えば、加工前の突出量Ｔは１ｍｍとすることができる。加工後の積層体の突出量Ｔは、０．３〜０．８ｍｍとすることができ、０．５ｍｍとすることができる。 5 is a cross-sectional arrow view taken along the line VV of FIG. The size of the first contact member 21 is measured from the thickness direction of the film laminate 10 when the contact surface A of the first contact member 21 is brought into contact with the thickness direction surface of the film laminate 10 before processing. Then, the end surface (outer end) EF of the film stack 10 is set to project 0.8 mm to 1.5 mm outside the outer end AP of the contact surface A of the first contact member 21 with the stack 10. Is preferred. Here, the amount of protrusion of the stacked body from the outer end AP of the contact surface A when viewed from the thickness direction is referred to as T. For example, the protrusion amount T before processing can be 1 mm. The protruding amount T of the processed laminate can be 0.3 to 0.8 mm, and can be 0.5 mm.

第１接触部材２１の矩形のアスペクト比は、押圧対象となる積層体１０（フィルム１２）における表面（厚み方向と垂直な面）のアスペクト比と同程度（例えば９０〜１１０％）とすることが好適である。典型的には、加工製品形状によるが、例えば１．０１〜３．００とすることができ、１．４０〜２．５０とすることが好適であり、１．７０〜２．２０とすることが更に好適である。 The rectangular aspect ratio of the first contact member 21 may be approximately the same as the aspect ratio of the surface (the surface perpendicular to the thickness direction) of the laminate 10 (film 12) to be pressed (for example, 90 to 110%). It is suitable. Typically, although depending on the shape of the processed product, it can be set to, for example, 1.01 to 3.00, preferably 1.40 to 2.50, and 1.70 to 2.20. Are more preferable.

本実施形態では、第１接触部材２１は、下面の中央に矩形の凹部Ｐを有しており、接触面Ａの形状は矩形環状である。本明細書において、矩形環状とは、矩形の輪郭からなる環形状を意味する。なお、本実施形態では、凹部Ｐにより接触面Ａの中央部が積層体１０と非接触とされているが、貫通孔により接触面Ａの中央部が非接触とされていてもよい。 In the present embodiment, the first contact member 21 has a rectangular recess P at the center of the lower surface, and the shape of the contact surface A is a rectangular ring. In this specification, a rectangular ring means a ring shape having a rectangular outline. In the present embodiment, the central portion of the contact surface A is not in contact with the laminated body 10 by the recess P, but the central portion of the contact surface A may be in non-contact by the through hole.

第１接触部材２１における接触面Ａの環の幅Ｓは、５〜２５ｍｍとすることができ、１０ｍｍ以上であることが好適であり、１５ｍｍ以下であることも好適である。 The ring width S of the contact surface A of the first contact member 21 can be set to 5 to 25 mm, preferably 10 mm or more, and also preferably 15 mm or less.

図４に示す第１接触部材２１の厚みＧは、第１接触部材２１がたわまない範囲で適宜設定できる。好適な厚みは、２〜１５ｍｍであり、３ｍｍ以上が好ましく、１３ｍｍ以下も好ましく、７ｍｍであってもよい。 The thickness G of the first contact member 21 shown in FIG. 4 can be appropriately set within a range in which the first contact member 21 does not bend. A suitable thickness is 2 to 15 mm, preferably 3 mm or more, preferably 13 mm or less, and may be 7 mm.

第１接触部材２１は、金属部材であることが好適である。金属の例は、アルミニウム、鋼、ステンレス鋼、合金工具鋼（例えばＳＫＤ１１）等である。 The first contact member 21 is preferably a metal member. Examples of metals are aluminum, steel, stainless steel, alloy tool steel (eg SKD11) and the like.

第１治具２０は、先端部材２３及び連結部２５を有する。先端部材２３は、図３及び図４に示すように、第１接触部材２１の面Ｂと接触する一対の平らな面Ｃ、及び、面Ｃとは反対側の平らな面Ｄを有する。具体的には、先端部材２３は一対の面Ｃの間の中央部Ｍが凹部とされ、面Ｃを含む両方の端部Ｎが中央部Ｍに対して凸部とされている。 The first jig 20 has a tip member 23 and a connecting portion 25. As shown in FIGS. 3 and 4, the tip member 23 has a pair of flat surfaces C that come into contact with the surface B of the first contact member 21 and a flat surface D opposite to the surface C. Specifically, in the tip member 23, the central portion M between the pair of surfaces C is a concave portion, and both ends N including the surface C are convex portions with respect to the central portion M.

図４に示すように、先端部材２３の一対の面Ｃは、第１接触部材２１の矩形の長辺方向（Ｘ軸方向、以下、単に長辺方向と呼ぶことがある）に離間して配置され、それぞれ、第１接触部材２１の矩形の短辺方向（Ｙ方向、以下、単に短辺方向と呼ぶことがある）に伸びている。 As shown in FIG. 4, the pair of surfaces C of the tip member 23 are arranged so as to be separated from each other in the long side direction (X-axis direction, hereinafter, simply referred to as the long side direction) of the rectangle of the first contact member 21. The first contact member 21 extends in the short side direction (Y direction, hereinafter, may be simply referred to as the short side direction) of the rectangle of the first contact member 21.

図２及び図３に示すように、先端部材２３の一対の面Ｃは、第１接触部材２１の面Ｂにおける長辺方向（Ｘ軸方向）の一端部２１Ａの一部、及び、他端部２１Ｃの一部に接触し、長辺方向の中央部２１Ｂには接触しない。ここで、一端部２１Ａとは、第１接触部材２１における長辺方向（Ｘ軸方向）における一端から長辺の長さの２５％までの領域、他端部２１Ｃとは長辺方向における他端から長辺の長さの２５％までの領域、及び、中央部２１Ｂとは、第１接触部材２１から一端部２１Ａ及び他端部２１Ｃを除いた残りの領域である。 As shown in FIGS. 2 and 3, the pair of surfaces C of the tip member 23 include a part of one end 21A in the long side direction (X-axis direction) of the surface B of the first contact member 21 and the other end. 21C is contacted with part, and the central portion 21B in the long side direction is not contacted. Here, the one end portion 21A is a region from one end in the long side direction (X-axis direction) of the first contact member 21 to 25% of the length of the long side, and the other end portion 21C is the other end in the long side direction. To the region up to 25% of the length of the long side, and the central portion 21B are the remaining regions of the first contact member 21 excluding the one end portion 21A and the other end portion 21C.

一方の面Ｃは、中央部２１Ｂに接することなく一端部２１Ａの少なくとも一部と接触していれば良い。他方の面Ｃは、中央部２１Ｂに接することなく他端部２１Ｃの少なくとも一部と接触していれば良い。 One surface C may contact at least a part of the one end 21A without contacting the central part 21B. The other surface C may contact at least a part of the other end 21C without contacting the central part 21B.

各面Ｃはそれぞれ、一端部２１Ａ又は他端部２１Ｃの３０％以上を覆うことが好適である。図４における面Ｃにおける長辺方向の幅Ｗは、例えば１０ｍｍ〜３０ｍｍ、好ましくは１５ｍｍ〜２５ｍｍとすることができる。 It is preferable that each surface C covers 30% or more of the one end 21A or the other end 21C. The width W in the long side direction of the surface C in FIG. 4 can be set to, for example, 10 mm to 30 mm, preferably 15 mm to 25 mm.

面Ｃは、それぞれ、一端部２１Ａ及び他端部２１Ｃにおいて短辺（Ｙ軸）側の全長に対して、好ましくは６０％以上、より好ましくは８０％以上の長さにわたって接触している。 The surface C is in contact with the one end 21</b>A and the other end 21</b>C for a length of preferably 60% or more, and more preferably 80% or more with respect to the entire length on the short side (Y axis) side.

先端部材２３の材料も、第１接触部材２１と同様とすることができる。 The material of the tip member 23 can be the same as that of the first contact member 21.

先端部材２３の厚みは、たわまない範囲で適宜設定できる。２つの端部Ｎの厚み（Ｚ方向）は例えば３ｍｍ〜２０ｍｍ、好ましくは３ｍｍ〜１５ｍｍとすることができる。また、中央部Ｍの厚み（Ｚ方向）は例えば２ｍｍ〜１９ｍｍ、好ましくは２ｍｍ〜１２ｍｍとすることができる。 The thickness of the tip member 23 can be appropriately set within a range where it does not bend. The thickness (Z direction) of the two ends N can be, for example, 3 mm to 20 mm, preferably 3 mm to 15 mm. Further, the thickness (Z direction) of the central portion M can be set to, for example, 2 mm to 19 mm, preferably 2 mm to 12 mm.

連結部２５は、先端部材２３の面Ｄに固定されると共に、後述する押圧部６０に固定された部材である。連結部２５は、図２に示すように、面Ｄにおける中心（重心）を含む部分Ｑと接触している。面Ｄにおける部分Ｑは、第１接触部材２１の面Ｂにおける中央部２１ＢをＺ軸方向に投影した領域内に入り、一端部２１Ａ及び他端部２１ＣをＺ軸方向に投影した領域内には入らない。第１治具２０の連結部２５の中心軸線と、後述する第２治具３０の中心軸線とは、同一線上に配置される。 The connecting portion 25 is a member that is fixed to the surface D of the tip member 23 and is fixed to a pressing portion 60 described later. As shown in FIG. 2, the connecting portion 25 is in contact with the portion Q including the center (center of gravity) on the surface D. The portion Q on the surface D is located in the area where the central portion 21B of the surface B of the first contact member 21 is projected in the Z-axis direction, and is located in the area where the one end 21A and the other end 21C are projected in the Z-axis direction. Do not fit. The central axis of the connecting portion 25 of the first jig 20 and the central axis of the second jig 30 described later are arranged on the same line.

先端部材２３と連結部２５は互いに固定されていて第１治具２０を構成している。先端部材２３と第１接触部材２１は互いに固定されている。これらの固定の方法としては、溶接、ネジ止め等の公知の方法を採用できる。 The tip member 23 and the connecting portion 25 are fixed to each other to form the first jig 20. The tip member 23 and the first contact member 21 are fixed to each other. As a method for fixing these, a known method such as welding or screwing can be adopted.

（第２接触部材３１及び第２治具３０）
図１に示すように、第２接触部材３１は、第１接触部材２１よりも下側に配置されている。図１及び図６の（ａ）及び（ｂ）に示すように、第２治具３０は、第２接触部材３１の下側に配置されている。 (Second contact member 31 and second jig 30)
As shown in FIG. 1, the second contact member 31 is arranged below the first contact member 21. As shown in FIGS. 1 and 6A and 6B, the second jig 30 is arranged below the second contact member 31.

第２接触部材３１は、第１接触部材２１と同様の矩形の板状部材である。第２接触部材３１は、第１接触部材２１の接触面Ａと対面する上面側に、フィルムの積層体１０と接触する平らな接触面Ｅを有し、接触面Ｅとは反対面に平らな接触面Ｆを有する。第２接触部材３１は、一端部３１Ａ、中央部３１Ｂ、及び、他端部３１Ｃを有する。一端部３１Ａ、中央部３１Ｂ、及び、他端部３１Ｃは第１接触部材２１と同様に定義される。 The second contact member 31 is a rectangular plate-like member similar to the first contact member 21. The second contact member 31 has a flat contact surface E that contacts the film stack 10 on the upper surface side that faces the contact surface A of the first contact member 21, and is flat on the surface opposite to the contact surface E. It has a contact surface F. The second contact member 31 has one end portion 31A, a central portion 31B, and the other end portion 31C. The one end portion 31A, the central portion 31B, and the other end portion 31C are defined similarly to the first contact member 21.

第２接触部材３１は、厚み方向がＺ方向（押圧する方向）に配置され、Ｚ方向から見た長手方向がＸ方向と平行となるように配置されており、第２接触部材３１の矩形における長手方向が第１接触部材２１の矩形の長手方向と平行となるように配置されている。第２接触部材３１の矩形の大きさ及びアスペクト比は、第１接触部材２１と同様の範囲で設定することができ、第１接触部材２１と同一であることが好適である。接触面Ｅの形状は、第１接触部材２１の接触面Ａと同様に、中央に非接触部となる凹部Ｐが設けられた矩形環状であってもよいし、凹部のない単なる平面であってもよい。 The second contact member 31 is arranged such that the thickness direction is in the Z direction (pressing direction), and the longitudinal direction viewed from the Z direction is parallel to the X direction, and in the rectangular shape of the second contact member 31. The longitudinal direction is arranged to be parallel to the rectangular longitudinal direction of the first contact member 21. The rectangular size and the aspect ratio of the second contact member 31 can be set in the same range as the first contact member 21, and are preferably the same as those of the first contact member 21. Like the contact surface A of the first contact member 21, the shape of the contact surface E may be a rectangular ring shape having a recess P serving as a non-contact portion in the center, or may be a simple flat surface without a recess. Good.

第２接触部材３１は、第１接触部材２１と同様の材料、構造、及び、厚みとすることができる。 The second contact member 31 can have the same material, structure, and thickness as the first contact member 21.

第２治具３０は、第２接触部材３１の面Ｆに固定されると共に、後述する固定部６１に固定された部材である。第２治具３０は、面Ｆにおける中心（重心）を含む部分Ｒと接触している。面Ｆにおける部分Ｒは、第２接触部材３１の面Ｆにおける中央部３１ＢをＺ軸方向に投影した領域内に入り、一端部３１Ａ及び他端部３１ＣをＺ軸方向に投影した領域内には入らない。なお、一端部、他端部、及び中央部の定義は、第１接触部材２１と同じである。上述のように、第２治具３０の中心軸と、連結部２５（第１治具２０）の中心軸とは、同一線上に配置される。 The second jig 30 is a member that is fixed to the surface F of the second contact member 31 and is fixed to a fixing portion 61 described later. The second jig 30 is in contact with the portion R including the center (center of gravity) on the surface F. The portion R on the surface F is located within the area where the central portion 31B of the surface F of the second contact member 31 is projected in the Z-axis direction, and is located within the area where the one end 31A and the other end 31C are projected in the Z-axis direction. Do not fit. The definitions of the one end portion, the other end portion, and the central portion are the same as those of the first contact member 21. As described above, the central axis of the second jig 30 and the central axis of the connecting portion 25 (first jig 20) are arranged on the same line.

第２接触部材３１と第２治具３０は、それぞれ、溶接、ネジ止め等の公知の方法により互いに固定され、第２治具３０は固定部６１に接続されている。 The second contact member 31 and the second jig 30 are fixed to each other by a known method such as welding or screwing, and the second jig 30 is connected to the fixing portion 61.

図１において、接触面Ｅが上を向くように第２接触部材３１が第２治具３０を介して固定部６１に固定され、接触面Ａが下を向くように第１接触部材２１が第１治具２０を介して押圧部６０に固定されており、接触面Ｅ及び接触面Ａは対向している。 In FIG. 1, the second contact member 31 is fixed to the fixing portion 61 through the second jig 30 so that the contact surface E faces upward, and the first contact member 21 moves to the first position so that the contact surface A faces downward. It is fixed to the pressing portion 60 via the 1 jig 20, and the contact surface E and the contact surface A face each other.

押圧部６０は固定部６１よりも上に配置されていて、押圧部６０は固定部６１に対して上下方向に移動可能に構成されている。したがって、押圧部６０は、第１接触部材２１の接触面Ａを第２接触部材３１の接触面Ｅに向かって押圧することができる。すなわち、第１接触部材２１の接触面Ａと、第２接触部材３１の接触面Ｅとの間に、フィルムの積層体１０を厚み方向の両側から押圧して固定することができる。 The pressing portion 60 is disposed above the fixed portion 61, and the pressing portion 60 is configured to be movable in the vertical direction with respect to the fixed portion 61. Therefore, the pressing portion 60 can press the contact surface A of the first contact member 21 toward the contact surface E of the second contact member 31. That is, between the contact surface A of the first contact member 21 and the contact surface E of the second contact member 31, the film laminate 10 can be pressed and fixed from both sides in the thickness direction.

押圧部６０の具体的構成に特に限定はなく、例えば、スクリュージャッキ、油圧ジャッキ等の公知の移動機構を使用できる。一軸式でも、多軸式でも良い。 The specific configuration of the pressing portion 60 is not particularly limited, and for example, a known moving mechanism such as a screw jack or a hydraulic jack can be used. Either a single-axis type or a multi-axis type may be used.

加工部４０は、エンドミル４４、エンドミルの回転駆動部４２、及び、エンドミルの移動部４６を有する。 The processing unit 40 includes an end mill 44, an end mill rotation driving unit 42, and an end mill moving unit 46.

エンドミル４４の形態に特に限定はないが、例えば、ルーター型のエンドミル等を好適に使用できる。エンドミル４４の刃長（Ｚ軸方向）は、フィルムの積層体１０の厚みよりも長いことが好適である。 The form of the end mill 44 is not particularly limited, but for example, a router type end mill or the like can be preferably used. The blade length (Z-axis direction) of the end mill 44 is preferably longer than the thickness of the film laminate 10.

回転駆動部４２は、エンドミル４４をその軸周りに回転させる。本実施形態では、回転駆動部４２は、エンドミル４４を、積層体１０の厚み方向（Ｚ方向）と平行な軸周りに回転させる。 The rotary drive unit 42 rotates the end mill 44 around its axis. In the present embodiment, the rotation driving unit 42 rotates the end mill 44 about an axis parallel to the thickness direction (Z direction) of the laminated body 10.

エンドミルの移動部４６は、回転するエンドミル４４を、エンドミル４４の側面が積層体１０の端面（側面）ＥＦに接触する状態で、端面ＥＦに沿って、積層体１０の厚み方向と垂直な方向に移動させる。 The moving unit 46 of the end mill moves the rotating end mill 44 in a direction perpendicular to the thickness direction of the laminate 10 along the end face EF in a state where the side surface of the end mill 44 contacts the end face (side face) EF of the laminate 10. To move.

端面加工装置１００は、加工部４０を１つ有すればよいが、迅速に加工を行う観点から、加工部４０を２つ以上有してもよい。 The end surface processing apparatus 100 only needs to have one processing section 40, but may have two or more processing sections 40 from the viewpoint of rapid processing.

（端面加工方法及び端面加工フィルムの製造方法）
続いて、本発明の実施形態に係る端面加工方法及び端面加工フィルムの製造方法について説明する。 (End face processing method and end face processed film manufacturing method)
Next, the end surface processing method and the end surface processed film manufacturing method according to the embodiment of the present invention will be described.

まず、図７に示すようなフィルム１２の積層体１０を用意する。各フィルム１２は、単層フィルムであっても、積層フィルムであっても良い。 First, a laminated body 10 of films 12 as shown in FIG. 7 is prepared. Each film 12 may be a single layer film or a laminated film.

単層フィルムの例は、樹脂フィルムである。樹脂の例は、セルロース系樹脂（トリアセチルセルロース等）、ポリオレフィン系樹脂（ポリプロピレン系樹脂等）、環状オレフィン系樹脂（ノルボルネン系樹脂等）、アクリル系樹脂（ポリメチルメタクリレート系樹脂等）、ポリエステル系樹脂（ポリエチレンテレフタレート系樹脂等）、及び、ポリイミド系樹脂（ポリイミド、ポリアミドイミド）等である。これらの単層フィルムは、保護フィルム、基材フィルム、位相差フィルム、ウィンドウフィルム等の光学フィルムであることができる。 An example of a monolayer film is a resin film. Examples of resins include cellulose resins (triacetyl cellulose etc.), polyolefin resins (polypropylene resins etc.), cyclic olefin resins (norbornene resins etc.), acrylic resins (polymethylmethacrylate resins etc.), polyester resins. Resins (polyethylene terephthalate resin, etc.) and polyimide resins (polyimide, polyamide imide), etc. These monolayer films can be optical films such as protective films, base films, retardation films and window films.

積層フィルムの例は、偏光板、円偏光板、及び、タッチセンサである。 Examples of laminated films are a polarizing plate, a circularly polarizing plate, and a touch sensor.

例えば、偏光板は、一対の光学フィルムと、この一対の光学フィルム間に配置された偏光子とを少なくとも備える。 For example, the polarizing plate includes at least a pair of optical films and a polarizer arranged between the pair of optical films.

円偏光板は、例えば、偏光子（例えば上記偏光板）と、位相差（１／４λ）フィルムとを有する。 The circularly polarizing plate has, for example, a polarizer (for example, the above polarizing plate) and a retardation (1/4λ) film.

積層フィルムは、更に、粘着剤層、接着剤層、剥離フィルム、プロテクトフィルムなどの他の層を備えることもできる。 The laminated film can further include other layers such as a pressure-sensitive adhesive layer, an adhesive layer, a release film, and a protective film.

各フィルム１２の厚みに特に限定はないが、例えば、２０μｍ〜５００ｍｍ、好ましくは５０μｍ〜５００μｍ、より好ましくは５０μｍ〜２００μｍとすることができる。 The thickness of each film 12 is not particularly limited, but may be, for example, 20 μm to 500 mm, preferably 50 μm to 500 μm, and more preferably 50 μm to 200 μm.

フィルム１２の外形形状（厚み方向から見た形状）は、第１接触部材２１（接触面Ａ）及び第２接触部材３１（接触面Ｅ）の外形形状に対応した形状であればよい。本実施形態では、上記の接触面Ａ及びＥの外形形状に合わせて、矩形のフィルムを用意する。
フィルムのアスペクト比は０以外、好ましくは、１．０１〜３．００であることが好適である。フィルムの長辺の長さは、例えば、１００ｍｍ以上であることができる。 The outer shape of the film 12 (the shape viewed from the thickness direction) may be a shape corresponding to the outer shape of the first contact member 21 (contact surface A) and the second contact member 31 (contact surface E). In this embodiment, a rectangular film is prepared according to the outer shapes of the contact surfaces A and E described above.
The aspect ratio of the film is other than 0, and preferably 1.01 to 3.00. The length of the long side of the film can be, for example, 100 mm or more.

積層体１０は、このようなフィルム１２を複数備える。各フィルム１２の外形形状は実質的に同一であることが好適である。例えば、フィルム原反からトムソン刃などでフィルム１２を切り出すことにより、実質的に同一の外形形状を有する多数のフィルム１２を得ることができる。積層体１０において、各フィルム１２は、長辺同士が平行となり、かつ、端部同士が厚み方向から見て重なるように、積層される。 The laminated body 10 includes a plurality of such films 12. The outer shape of each film 12 is preferably substantially the same. For example, a large number of films 12 having substantially the same outer shape can be obtained by cutting the film 12 out of the original film with a Thomson blade or the like. In the laminated body 10, the films 12 are laminated such that the long sides thereof are parallel to each other and the end portions of the films 12 overlap each other when viewed in the thickness direction.

積層体１０の各フィルム１２は、通常、互いに同一の積層構造を有するフィルム１２であるが、互いに異なる積層構造を有するフィルム１２を積層することも可能である。積層体１０におけるフィルム１２の数は２以上であれば特に限定されないが、通常、５以上であり、１０以上であっても良く、５０以上であっても良い。 Each film 12 of the laminate 10 is usually a film 12 having the same laminated structure, but it is also possible to laminate films 12 having different laminated structures. The number of films 12 in the laminate 10 is not particularly limited as long as it is 2 or more, but is usually 5 or more, may be 10 or more, or may be 50 or more.

積層体１０は、複数のフィルム１２以外に、積層方向の両端の一方又は両方に、積層体１０を第１接触部材２１及び第２接触部材３１で固定する際にフィルム１２が傷つくのを防ぐべく、保護フィルム１４を有することができる。 In order to prevent the film 12 from being damaged when the stack 10 is fixed by the first contact member 21 and the second contact member 31 to one or both ends in the stacking direction, in addition to the plurality of films 12. The protective film 14 can be provided.

保護フィルム１４の例は、樹脂フィルムである。樹脂の例は、上記した樹脂フィルムで例示した樹脂に加え、ポリスチレン、ポリエチレンテレフタラート等である。 An example of the protective film 14 is a resin film. Examples of the resin include polystyrene, polyethylene terephthalate, and the like, in addition to the resins exemplified for the above resin film.

保護フィルム１４の厚みは、例えば、０．２ｍｍ〜１．０ｍｍ、好ましくは０．３ｍｍ〜０．８ｍｍ、より好ましくは０．３ｍｍ〜０．６ｍｍとすることができる。 The thickness of the protective film 14 can be, for example, 0.2 mm to 1.0 mm, preferably 0.3 mm to 0.8 mm, and more preferably 0.3 mm to 0.6 mm.

また、積層体１０の厚みは、例えば１０ｍｍ〜６０ｍｍ、好ましくは２０ｍｍ〜５０ｍｍとすることができる。 The thickness of the laminated body 10 can be, for example, 10 mm to 60 mm, preferably 20 mm to 50 mm.

このような積層体１０の端面ＥＦが本実施形態における加工対象となる。端面ＥＦとは、第１接触部材２１側から見た積層体１０の側面全体を表す。積層体１０は、厚みの両端に上面Ｖ及び下面Ｕを有する。 The end surface EF of such a laminated body 10 is a processing target in the present embodiment. The end surface EF represents the entire side surface of the stacked body 10 as viewed from the first contact member 21 side. The laminated body 10 has an upper surface V and a lower surface U at both ends of the thickness.

積層体１０は、第１接触部材２１と同様に、一端部１０Ａ、中央部１０Ｂ、及び他端部１０Ｃを有する。一端部１０Ａとは、積層体１０における長辺方向（Ｘ軸方向）における一端から長辺の長さの２５％までの領域、他端部１０Ｃとは長辺方向における他端から長辺の長さの２５％までの領域、及び、中央部１０Ｂとは、積層体１０から一端部１０Ａ及び他端部１０Ｃを除いた残りの領域である。 Similar to the first contact member 21, the laminated body 10 has one end 10A, a central portion 10B, and the other end 10C. The one end portion 10A is a region from one end in the long side direction (X-axis direction) to 25% of the length of the long side in the laminated body 10, and the other end portion 10C is the length from the other end in the long side direction to the long side. The area up to 25% of the height and the central portion 10B are the remaining areas of the laminated body 10 excluding the one end portion 10A and the other end portion 10C.

つづいて、この積層体１０を、第１接触部材２１及び第２接触部材３１の間に、第１接触部材２１の接触面Ａが積層体１０の厚み方向の一方側の表面（上面）に接触し、第２接触部材３１の接触面Ｅが積層体１０の厚み方向の他方側の表面（下面）に接触するように、挟んで固定する。具体的には、固定部６１に連結された第２接触部材３１の接触面Ｅ上に、積層体１０を載置したのち、押圧部６０の駆動により、第１接触部材２１を下方に移動させて、接触面Ａと接触面Ｅとで積層体１０を厚み方向に押圧する。 Subsequently, the laminated body 10 is contacted between the first contact member 21 and the second contact member 31 such that the contact surface A of the first contact member 21 contacts one surface (upper surface) of the laminated body 10 in the thickness direction. Then, the second contact member 31 is sandwiched and fixed so that the contact surface E of the second contact member 31 contacts the other surface (lower surface) of the laminated body 10 in the thickness direction. Specifically, after the stacked body 10 is placed on the contact surface E of the second contact member 31 connected to the fixing portion 61, the pressing portion 60 is driven to move the first contact member 21 downward. Then, the laminated body 10 is pressed in the thickness direction by the contact surface A and the contact surface E.

ここで、第１接触部材２１の一端部２１Ａは、積層体１０の上面Ｖにおける一端部１０Ａの一部と接触し、第１接触部材２１の中央部２１Ｂは、積層体１０の上面Ｖにおける中央部１０Ｂの一部と接触し、第１接触部材２１の他端部２１Ｃは、積層体１０の上面Ｖにおける他端部１０Ｃの一部とそれぞれ接触する。 Here, the one end 21A of the first contact member 21 contacts a part of the one end 10A of the top surface V of the stacked body 10, and the central portion 21B of the first contact member 21 is the center of the top surface V of the stacked body 10. The other end 21C of the first contact member 21 contacts a part of the portion 10B, and the other end 21C of the first contact member 21 contacts a part of the other end 10C on the upper surface V of the stacked body 10.

また、第２接触部材３１の一端部３１Ａは、積層体１０の下面Ｕにおける一端部１０Ａの一部と接触し、第２接触部材３１の中央部３１Ｂは、積層体１０の下面Ｕにおける中央部１０Ｂの一部と接触し、第２接触部材３１の他端部３１Ｃは、積層体１０の下面Ｕにおける他端部１０Ｃの一部とそれぞれ接触する。 Further, the one end 31A of the second contact member 31 contacts a part of the one end 10A of the lower surface U of the laminated body 10, and the central portion 31B of the second contact member 31 is the central portion of the lower surface U of the laminated body 10. The other end portion 31C of the second contact member 31 comes into contact with a part of the other end portion 10C on the lower surface U of the stacked body 10 and a part of the other end portion 10C of the second contact member 31.

本実施形態では、このような押圧方法により、押圧による固定時に、第１接触部材２１の接触面Ａの面内の圧力の最大値及び最小値をそれぞれＰｍａｘ及びＰｍｉｎとしたときに、Ｐｍｉｎ≧０．４Ｐｍａｘを満たすように、積層体１０を固定する。好ましくはＰｍｉｎ≧０．５Ｐｍａｘ、より好ましくはＰｍｉｎ≧０．６Ｐｍａｘであり、更に好ましくはＰｍｉｎ＝Ｐｍａｘであるが、Ｐｍｉｎ≧０．４Ｐｍａｘであれば効果を得ることができる。 In the present embodiment, by such a pressing method, when fixing by pressing, when the maximum value and the minimum value of the in-plane pressure of the contact surface A of the first contact member 21 are Pmax and Pmin, respectively, Pmin≧0. The laminated body 10 is fixed so as to satisfy 0.4 Pmax. Pmin≧0.5Pmax is preferable, Pmin≧0.6Pmax is more preferable, and Pmin=Pmax is further preferable, but the effect can be obtained if Pmin≧0.4Pmax.

本実施形態のように、先端部材２３を有する第１治具２０を用いて、第１接触部材２１の一端部２１Ａ及び他端部２１Ｃを第２接触部材３１に向かって押圧すると、積層体１０の長手方向の一端部１０Ａ及び他端部１０Ｃを確実に接触面Ａで押圧できるため、上記の式を満足しやすい。 When the one end 21A and the other end 21C of the first contact member 21 are pressed toward the second contact member 31 using the first jig 20 having the tip member 23 as in the present embodiment, the stacked body 10 is obtained. Since the one end portion 10A and the other end portion 10C in the longitudinal direction can be reliably pressed by the contact surface A, the above equation can be easily satisfied.

なお、上記式を満たしているか否かの確認は、感圧シートを用いて行うことができる。感圧シートとは、受けた圧力の大きさの面内分布を電気信号として出力するシート、あるいは、受けた圧力の大きさを発色により記録することができるシートである。具体的には、あらかじめ、積層体１０と第１接触部材２１との間に感圧シートを挟んだ状態で積層体１０の固定を行い、その後、接触面Ａにおける圧力分布の実測値に基づいて、上記式を満たしているか否かを確認すれば良い。また、毎回測定する場合には、接触面Ａに感圧シートを設けた第１接触部材２１を用いれば良い。 The confirmation as to whether or not the above formula is satisfied can be performed using a pressure sensitive sheet. The pressure sensitive sheet is a sheet that outputs the in-plane distribution of the magnitude of the received pressure as an electric signal, or a sheet that can record the magnitude of the received pressure by coloring. Specifically, the laminated body 10 is fixed in advance with the pressure sensitive sheet sandwiched between the laminated body 10 and the first contact member 21, and then based on the measured value of the pressure distribution on the contact surface A. It suffices to check whether or not the above formula is satisfied. In addition, when the measurement is performed every time, the first contact member 21 having the pressure sensitive sheet on the contact surface A may be used.

上記式を満たすことを前提とした上で、押圧による固定時における接触面Ａの圧力の最大値の範囲は、例えば０．３〜１．０ＭＰａ、好ましくは０．３〜０．６ＭＰａとすることができる。 On the assumption that the above formula is satisfied, the range of the maximum value of the pressure of the contact surface A when fixed by pressing is, for example, 0.3 to 1.0 MPa, preferably 0.3 to 0.6 MPa. You can

続いて、積層体１０を固定した状態で、積層体１０の端面ＥＦに対して、積層体１０の厚み方向と平行な軸周りに回転するエンドミル４４の側面を接触させると共に、エンドミル４４を端面に沿って、厚み方向と直交する方向、すなわち、長辺又は短辺方向に移動させ、各端面ＥＦの加工を行う。加工の具体例として、切削が挙げられる。これにより、積層体１０を構成する各フィルム１２の平面形状（寸法、直角度等）を精度良く所定の形にすることができる。 Then, while the laminated body 10 is fixed, the end face EF of the laminated body 10 is brought into contact with the side surface of the end mill 44 rotating around an axis parallel to the thickness direction of the laminated body 10, and the end mill 44 is attached to the end surface. Along the direction perpendicular to the thickness direction, that is, the long side direction or the short side direction, each end face EF is processed. Cutting is mentioned as a specific example of processing. As a result, the planar shape (dimension, squareness, etc.) of each film 12 forming the laminated body 10 can be accurately formed into a predetermined shape.

ここでは、積層体１０の全端面ＥＦのうちの７５％以上を加工することができ、９０％以上、９５％以上、９９％以上、１００％を加工してもよい。 Here, 75% or more of all the end faces EF of the laminated body 10 can be processed, and 90% or more, 95% or more, 99% or more, and 100% may be processed.

その後、押圧部６０による押圧を解除して、第１接触部材２１及び第２接触部材３１の間から積層体１０を取り出すことで、精度良く端面加工された積層体１０が得られる。必要に応じて、積層体１０から各フィルム１２を分離することにより、分離されたフィルム１２が得られる。 Then, the pressing by the pressing portion 60 is released, and the laminated body 10 is taken out from between the first contact member 21 and the second contact member 31, so that the laminated body 10 whose end surface is processed with high precision is obtained. The separated films 12 are obtained by separating each film 12 from the laminated body 10 as needed.

本実施形態によれば、第１接触部材２１の接触面Ａの圧力の最大値及び最小値をそれぞれＰｍａｘ及びＰｍｉｎとしたときに、Ｐｍｉｎ≧０．４Ｐｍａｘを満たすように、積層体１０を固定しているので、積層体１０の端面近傍を全周にわたって均一な力で固定することができ、加工時の各フィルムの端部のずれが抑制されて、加工精度が向上する。 According to this embodiment, when the maximum value and the minimum value of the pressure of the contact surface A of the first contact member 21 are Pmax and Pmin, respectively, the laminated body 10 is fixed so that Pmin≧0.4Pmax is satisfied. Therefore, the vicinity of the end face of the laminated body 10 can be fixed with a uniform force over the entire circumference, the deviation of the end portion of each film at the time of processing is suppressed, and the processing accuracy is improved.

これに対して、例えば、先端部材２３を有さない第１治具２０を用いた場合など、Ｐｍｉｎ≧０．４Ｐｍａｘを満たさない場合には、接触面Ａにおいて長手方向の端部の圧力が低くなりやすい。この場合、フィルムの長手方向の端部でのずれが起こりやすく精度の低下が発生する。 On the other hand, when Pmin≧0.4Pmax is not satisfied, for example, when the first jig 20 having no tip member 23 is used, the pressure at the end portion in the longitudinal direction on the contact surface A is low. Prone. In this case, misalignment is likely to occur at the end of the film in the longitudinal direction, resulting in deterioration of accuracy.

また、接触面Ａの形状が環状の治具を用いると、端部をより選択的に押圧しやすくなる。 Further, when a jig whose contact surface A has an annular shape is used, it becomes easier to press the end portion more selectively.

本発明は上記実施形態に限定されず、様々な変形態様が可能である。
例えば、フィルム及び積層体１０の形状は矩形に限られず、長手方向を有する形状であれば良い。形状の例は、角が丸くされた矩形、楕円（長円を含む）である。この場合でも、フィルム及び積層体のアスペクト比は０以外、好ましくは、１．０１〜３．００であることが好適である。フィルムの長手方向の長さは、例えば、１００ｍｍ以上であることができる。なお、矩形以外の形状でのフィルム等のアスペクト比とは、最小外接矩形の長辺の長さをＬＬ、短辺の長さをＳＳとしたときに、ＬＬ／ＳＳで定義される。 The present invention is not limited to the above embodiment, and various modifications are possible.
For example, the shape of the film and the laminated body 10 is not limited to a rectangle, and may be any shape having a longitudinal direction. Examples of the shape are a rectangle with rounded corners and an ellipse (including an ellipse). Even in this case, the aspect ratio of the film and the laminate is other than 0, preferably 1.01 to 3.00. The length of the film in the longitudinal direction can be, for example, 100 mm or more. Note that the aspect ratio of a film or the like having a shape other than a rectangle is defined by LL/SS when the length of the long side of the minimum circumscribed rectangle is LL and the length of the short side is SS.

第１接触部材２１（接触面Ａ）及び第２接触部材（接触面Ｅ）の外形形状は、積層体１０の外形形状に合わせて適宜設定できる。例えば、積層体１０の外形形状が楕円であれば、第１接触部材２１（接触面Ａ）及び第２接触部材（接触面Ｅ）の外形形状も楕円形とすることが好適であり、積層体１０の外形形状が、角が丸くされた矩形であれば、第１接触部材２１（接触面Ａ）及び第２接触部材（接触面Ｅ）の外形形状も角が丸くされた矩形とすることができる。この場合、接触面Ａ，接触面Ｅはそれぞれ、楕円環状、角が丸くされた矩形環状とすることができる。その場合の第１接触部材２１（接触面Ａ）及び第２接触部材（接触面Ｅ）の外側端からの積層体１０の突出量Ｔも上述の範囲とすることが好適である。 The outer shapes of the first contact member 21 (contact surface A) and the second contact member (contact surface E) can be appropriately set according to the outer shape of the stacked body 10. For example, if the outer shape of the laminate 10 is elliptical, it is preferable that the outer shapes of the first contact member 21 (contact surface A) and the second contact member (contact surface E) are also elliptical. If the outer shape of 10 is a rectangle with rounded corners, the outer shapes of the first contact member 21 (contact surface A) and the second contact member (contact surface E) may also be rectangular with rounded corners. it can. In this case, the contact surface A and the contact surface E can each be an elliptical ring or a rectangular ring with rounded corners. In that case, it is preferable that the amount T of protrusion of the stacked body 10 from the outer ends of the first contact member 21 (contact surface A) and the second contact member (contact surface E) is also within the above range.

図８に、積層体１０の形状が、厚み方向から見て楕円（長円）である場合の、積層体１０、第１接触部材２１、及び第１治具２０の例を示す。第１接触部材２１は積層体の形状に対応した楕円（長円）の板とされ、積層体１０との接触面Ａは楕円環とされている。第１接触部材２１の一端部２１Ａが積層体１０の表面（上面）Ｖにおける一端部１０Ａの一部と接触し、第１接触部材２１の中央部２１Ｂが積層体１０の表面Ｖにおける中央部１０Ｂの一部と接触し、第１接触部材２１の他端部２１Ｃが積層体１０の表面Ｖにおける他端部１０Ｃの一部と接触する。 FIG. 8 shows an example of the laminated body 10, the first contact member 21, and the first jig 20 when the laminated body 10 has an elliptical shape (oval) when viewed from the thickness direction. The first contact member 21 is an elliptical (oval) plate corresponding to the shape of the laminated body, and the contact surface A with the laminated body 10 is an elliptical ring. One end 21A of the first contact member 21 contacts a part of one end 10A of the surface (upper surface) V of the laminated body 10, and the central portion 21B of the first contact member 21 has a central portion 10B of the surface V of the laminated body 10. , And the other end 21C of the first contact member 21 contacts a part of the other end 10C on the surface V of the laminate 10.

先端部材２３の２つの端部Ｎの面Ｃは、それぞれ、半月状の形状を有する。先端部材２３の端部Ｎの面Ｃが、第１接触部材２１の面Ｂにおける長辺方向（Ｘ軸方向）の一端部２１Ａの一部、及び、他端部２１Ｃの一部に接触し、先端部材２３は長辺方向の中央部２１Ｂには接触しない。 The surfaces C of the two ends N of the tip member 23 each have a half-moon shape. The surface C of the end N of the tip member 23 comes into contact with a part of one end 21A in the long side direction (X-axis direction) and a part of the other end 21C of the surface B of the first contact member 21, The tip member 23 does not contact the central portion 21B in the long side direction.

また、上記実施形態では、第１接触部材２１の接触面Ａは環状形状とされているが、これに限定されない。例えば、接触面Ａの中央に積層体１０との非接触部が設けられていない態様、例えば、矩形、楕円形等であっても実施は可能である。 Further, in the above embodiment, the contact surface A of the first contact member 21 has an annular shape, but is not limited to this. For example, the present invention can be implemented even in a mode in which a non-contact portion with the laminated body 10 is not provided in the center of the contact surface A, such as a rectangle or an ellipse.

また、第２接触部材３１の接触面Ｅも、環状形状でなくても実施可能である。例えば、接触面Ｅの中央部に凹部や貫通部などの非接触部を有さない形状、例えば、矩形、楕円形でもよい。ただし、接触面Ｅの外形形状は、接触面Ａと同一であることが好適である。 Further, the contact surface E of the second contact member 31 can be implemented without having an annular shape. For example, the contact surface E may have a shape that does not have a non-contact portion such as a concave portion or a penetrating portion in the center portion, for example, a rectangle or an ellipse. However, the outer shape of the contact surface E is preferably the same as that of the contact surface A.

また、上記実施形態において、積層体１０の端面ＥＦに対して、積層体１０の厚み方向と平行な軸周りに回転するエンドミル４４の側面を接触させて加工を行っているがこれに限られず、例えば、積層体１０の端面ＥＦに対して、積層体１０の厚み方向と垂直かつ端面ＥＦと平行な軸周りに回転するエンドミル４４の側面を接触させて加工を行っても実施は可能である。 Further, in the above-described embodiment, the side surface of the end mill 44 rotating around the axis parallel to the thickness direction of the laminated body 10 is brought into contact with the end surface EF of the laminated body 10 for processing, but the present invention is not limited to this. For example, the end face EF of the laminated body 10 may be processed by bringing the side surface of the end mill 44 rotating around an axis perpendicular to the thickness direction of the laminated body 10 and parallel to the end face EF into contact.

また、加工部４０、押圧部６０の態様も上記の態様に限定されないことは言うまでも無い。例えば、上記実施形態ではエンドミルを用いているが、エンドミル以外の工具、例えば、カンナ刃を用いることも可能である。また、上記実施形態では、固定部６１が下に、押圧部６０が上にあるが、反対に配置されていてもよく、固定部を有さずに、一対の押圧部６０が上下にそれぞれ配置されていてもよい。 Further, it goes without saying that the processing section 40 and the pressing section 60 are not limited to the above-described modes. For example, although the end mill is used in the above embodiment, a tool other than the end mill, for example, a planer blade can be used. Further, in the above embodiment, the fixing portion 61 is on the lower side and the pressing portion 60 is on the upper side. However, they may be arranged on the opposite side, and the pair of pressing portions 60 are arranged on the upper and lower sides without the fixing portion. It may have been done.

また、上記実施形態では、先端部材２３を使用して、Ｐｍｉｎ≧０．４Ｐｍａｘを実現していたが、Ｐｍｉｎ≧０．４Ｐｍａｘを満たすのであれば、他の方法を利用することも可能である。例えば、図９に示すような、一対の押圧部６０により第１接触部材２１の一端部２１Ａ及び他端部２１Ｃを独立に押圧する態様である。この実施形態では、２つの押圧部６０にそれぞれに設けられた第１治具２０の下面Ｃにより、中央部２１Ｂを押圧することなく、第１接触部材２１の一端部２１Ａ及び他端部２１Ｃを上面からそれぞれ押圧することができる。 Further, in the above embodiment, the tip member 23 is used to realize Pmin≧0.4Pmax, but other methods can be used as long as Pmin≧0.4Pmax is satisfied. For example, as shown in FIG. 9, the pair of pressing portions 60 independently presses the one end 21A and the other end 21C of the first contact member 21. In this embodiment, the one end 21A and the other end 21C of the first contact member 21 are pressed by the lower surface C of the first jig 20 provided on each of the two pressing portions 60 without pressing the central portion 21B. Each can be pressed from the top surface.

なお、一対の押圧部６０により積層体１０を押圧する場合、第２接触部材３１における前記積層体１０との接触面Ｅの形状は、第１接触部材２１の接触面Ａと同様に、中央に非接触部となる凹部Ｐが設けられた形状であることが好ましい。更に、押圧する工程において、接触面Ｅにおける圧力の最大値と最小値とをそれぞれＰｍａｘ（１）とＰｍａｘ（２）としたときに、Ｐｍｉｎ（１）≧０．４Ｐｍａｘ（１）を満たすことが好ましい。 When the laminated body 10 is pressed by the pair of pressing portions 60, the shape of the contact surface E of the second contact member 31 with the laminated body 10 is the same as that of the contact surface A of the first contact member 21. It is preferable that the recess P be a non-contact portion. Further, in the pressing step, when the maximum value and the minimum value of the pressure on the contact surface E are Pmax(1) and Pmax(2), respectively, Pmin(1)≧0.4Pmax(1) may be satisfied. preferable.

また、上記実施形態において、図１に示す第２治具３０は、先端に、第１治具２０の先端部材２３と同様の先端部材を有するなどして、中央部３１Ｂを押圧することなく、一端部３１Ａ及び他端部３１Ｃを選択的に押圧してもよい。例えば、図１０に示すように、第２治具３０が、先端部材３３及び連結部３５を有していてもよい。先端部材３３及び連結部３５は、第１治具２０の先端部材２３と連結部２５と同様の構造を有することができ、先端部材３３は、第２接触部材３１の一端部３１Ａ及び他端部３１Ｃを、中央部３１Ｂを押圧することなく選択的に押圧する。 Further, in the above-described embodiment, the second jig 30 shown in FIG. 1 has a tip member similar to the tip member 23 of the first jig 20 at the tip, without pressing the central portion 31B, The one end 31A and the other end 31C may be selectively pressed. For example, as shown in FIG. 10, the second jig 30 may have a tip member 33 and a connecting portion 35. The tip member 33 and the connecting portion 35 may have the same structure as the tip member 23 and the connecting portion 25 of the first jig 20, and the tip member 33 includes the one end portion 31A and the other end portion of the second contact member 31. 31C is selectively pressed without pressing the central portion 31B.

また、上記実施形態では、加工精度が低くなりやすい場合に適用する観点から積層体１０の外形形状のアスペクト比が１より大きい、及び、第１接触部材２１（接触面Ａ）及び第２接触部材３１（接触面Ｅ）の外形形状のアスペクト比が１よりも大きい態様を採用しているが、積層体１０の外形形状のアスペクト比が１、及び、第１接触部材２１（接触面Ａ）及び第２接触部材３１（接触面Ｅ）の外形形状のアスペクト比が１である態様、例えば、正方形、円形等の態様であっても実施は可能である。 In addition, in the above-described embodiment, the aspect ratio of the outer shape of the stacked body 10 is larger than 1, and the first contact member 21 (contact surface A) and the second contact member are applied in the case where the processing accuracy is likely to be low. Although the aspect ratio of the outer shape of 31 (contact surface E) is larger than 1, the aspect ratio of the outer shape of the laminated body 10 is 1, and the first contact member 21 (contact surface A) and The second contact member 31 (contact surface E) can be implemented even in an aspect in which the outer shape has an aspect ratio of 1, for example, a square or circular aspect.

（実施例１）
以下の条件で、図１〜図６に示す端面加工装置を用いて、１０１枚の偏光板を有する積層体の端面をエンドミルで加工した。
偏光板：ポリエチレンテレフタレート［ＰＥＴ］、トリアセチルセルロース［ＴＡＣ］、ポリビニルアルコール［ＰＶＡ］、ＴＡＣ、位相差フィルム、粘着層、及びＰＥＴを、この順に積層させた偏光板。厚み２６０μｍ、長辺１５５．６ｍｍ、短辺７５．６ｍｍ
端面加工装置：メガロテクニカ株式会社製 ２軸偏光板加工機（ＰＬＰＢ−３５２３ＣＷＡ）に以下の仕様を加えた装置
先端部材２３：長辺１３４ｍｍ、短辺５４ｍｍ、両端部Ｎの厚み１１ｍｍ、中央部Ｍの厚み１０ｍｍ、中央部Ｍに対する両端部Ｎの突出量１ｍｍ、ステンレス鋼、Ｃ面の長手方向の幅Ｗ２０ｍｍ
第１接触部材２１及び第２接触部材３１の形状：矩形板であり、接触面は矩形環、環の幅Ｓ１０ｍｍ、厚み５ｍｍ、長辺１５４ｍｍ、短辺７４ｍｍ
第１接触部材２１及び第２接触部材３１の材質：ステンレス鋼
加工条件：突出量Ｔ：０．８ｍｍ、切削量：０．３ｍｍ (Example 1)
Under the following conditions, the end surface of the laminate having 101 polarizing plates was processed by an end mill using the end surface processing device shown in FIGS.
Polarizing plate: A polarizing plate in which polyethylene terephthalate [PET], triacetyl cellulose [TAC], polyvinyl alcohol [PVA], TAC, retardation film, adhesive layer, and PET are laminated in this order. Thickness 260μm, long side 155.6mm, short side 75.6mm
End face processing device: A device that adds the following specifications to a biaxial polarizing plate processing machine (PLPB-3523CWA) manufactured by Megaro Technica Co., Ltd. Tip member 23: long side 134 mm, short side 54 mm, both ends N thickness 11 mm, central part M Thickness of 10 mm, the amount of protrusion of both end portions N with respect to the central portion M is 1 mm, stainless steel, and the width W of the C surface in the longitudinal direction W20 mm
Shape of the first contact member 21 and the second contact member 31: a rectangular plate, the contact surface is a rectangular ring, ring width S10mm, thickness 5mm, long side 154mm, short side 74mm
Material of the first contact member 21 and the second contact member 31: Stainless steel Processing conditions: Projection amount T: 0.8 mm, Cutting amount: 0.3 mm

上記加工を行う際に接触面Ａに圧力測定フィルム（商品名：プレスケール、極超低圧用（ＬＬＬＷ）；ＦＵＪＩＦＩＬＭ社製）を設けて、固定時の圧力分布を測定したところ、Ｐｍｉｎは０．４Ｐｍａｘであった。寸法ずれは１４μｍ、直角度ずれは０．０１６°であった。 When a pressure measurement film (trade name: prescale, for ultra-low pressure (LLLLW); manufactured by FUJIFILM Co., Ltd.) was provided on the contact surface A when the above processing was performed, the pressure distribution at the time of fixation was measured, and Pmin was 0. It was 4Pmax. The dimensional deviation was 14 μm and the squareness deviation was 0.016°.

本実施例及び下記比較例において、寸法ずれとは、加工済み積層体の積層方向の上部、中部及び下部より、それぞれ加工済み偏光板を１枚ずつ取り出し、各加工済み偏光板における両端及び中央の合計３点での長辺及び短辺寸法を測定し、各辺の測定値と設計寸法との寸法差の最大範囲（即ち、該寸法差最大値Ｍａｘと寸法差最小値Ｍｉｎとの差）を表す。
直角度ずれとは、上記測定済み各辺の座標データにて、長辺に平行な直線ＡＡと短辺に平行な直線ＢＢとを作製し、その直線ＡＡと直線ＢＢの交点の角度ＣＣとした場合における、角度ＣＣと設計値（直角）との角度のずれ量の最大値である。 In the present example and the following comparative examples, the dimensional deviation means that one processed polarizing plate is taken out from each of the upper, middle and lower parts of the processed laminated body in the stacking direction, and the processed polarizing plate has both ends and a center. Measure the long-side and short-side dimensions at a total of three points, and determine the maximum range of the dimensional difference between the measured value of each side and the design dimension (that is, the difference between the dimensional difference maximum value Max and the dimensional difference minimum value Min). Represent
The squareness deviation is a straight line AA parallel to the long side and a straight line BB parallel to the short side in the coordinate data of the above-mentioned measured sides, and is defined as the angle CC of the intersection of the straight line AA and the straight line BB. In this case, it is the maximum value of the amount of angle deviation between the angle CC and the design value (right angle).

（実施例２）
図１０に示すように、先端部材３３及び連結部３５を有する第２治具３０を用いる以外は、実施例１と同様に試験を行った。先端部材３３として、先端部材２３と同じサイズおよび材質の部材を使用した。
Ｐｍｉｎは０．５Ｐｍａｘであった。寸法ずれは、１６μｍ、直角度ずれは、０．０１７°であった。 (Example 2)
As shown in FIG. 10, a test was performed in the same manner as in Example 1 except that the second jig 30 having the tip member 33 and the connecting portion 35 was used. As the tip member 33, a member having the same size and material as the tip member 23 was used.
Pmin was 0.5Pmax. The dimensional deviation was 16 μm and the squareness deviation was 0.017°.

（比較例１）
先端部材２３を用いないで連結部２５で第１接触部材２１を押圧する以外は実施例１と同様に試験を行った。Ｐｍｉｎは０．１Ｐｍａｘであった。寸法ずれは、６５μｍ、直角度ずれは、０．０４０°であった。 (Comparative Example 1)
A test was performed in the same manner as in Example 1 except that the first contact member 21 was pressed by the connecting portion 25 without using the tip member 23. Pmin was 0.1 Pmax. The dimensional deviation was 65 μm and the squareness deviation was 0.040°.

（比較例２）
先端部材２３として、図１１に示すように、Ｃ面の長手方向の幅Ｗが２０ｍｍである両端部Ｎに加え、中央部Ｍにおける長手方向の中心となる位置に、長手方向の幅Ｗ２が１０ｍｍ、厚みが１ｍｍであり端部Ｎと平行に伸びる凸部ＮＮを設けた以外は、実施例１と同様に試験を行った。中央部Ｍに対する両端部Ｎ及び凸部ＮＮの突出量は１ｍｍとなり、凸部ＮＮは第１接触部材２１の中央部２１Ｂに接触する。Ｐｍｉｎは０．１Ｐｍａｘであった。寸法ずれは、６８μｍ、直角度ずれは、０．０４０°であった。 (Comparative example 2)
As the tip member 23, as shown in FIG. 11, in addition to both end portions N in which the width W in the longitudinal direction of the C surface is 20 mm, the width W2 in the longitudinal direction is 10 mm at the center of the central portion M in the longitudinal direction. The test was performed in the same manner as in Example 1 except that the convex portion NN having a thickness of 1 mm and extending parallel to the end portion N was provided. The protrusion amount of both end portions N and the convex portion NN with respect to the central portion M is 1 mm, and the convex portion NN contacts the central portion 21B of the first contact member 21. Pmin was 0.1 Pmax. The dimensional deviation was 68 μm and the squareness deviation was 0.040°.

結果を表１にまとめて示す。

Figure 0006704081
The results are summarized in Table 1.
Figure 0006704081

１０…積層体、ＥＦ…端面（側面）、ＡＰ…外側端、１２…フィルム、２０…第１治具、２１…第１接触部材、２３…先端部材、３０…第２治具、３１…第２接触部材、４０…加工部、６０…押圧部、６１…固定部、１００…端面加工装置、Ａ，Ｅ…接触面、２１Ａ、１０Ａ，３１Ａ…一端部、２１Ｂ，１０Ｂ，３１Ｂ…中央部、３１Ｃ，１０Ｃ，３１Ｃ…他端部。

10... Laminated body, EF... End face (side surface), AP... Outer end, 12... Film, 20... First jig, 21... First contact member, 23... Tip member, 30... Second jig, 31... 2 contact members, 40... processing part, 60... pressing part, 61... fixing part, 100... end surface processing device, A, E... contact surface, 21A, 10A, 31A... one end part, 21B, 10B, 31B... central part, 31C, 10C, 31C... The other end.

Claims (17)

複数のフィルムを有する積層体１０の端面を加工する方法であって、
第１接触部材及び第２接触部材により、前記積層体の厚み方向の両側から、前記第１接触部材及び第２接触部材が前記積層体に接触するように、前記積層体を押圧して前記積層体を固定する工程と、
固定された前記積層体の端面を加工する工程と、を備え、
前記押圧する工程において、前記第１接触部材における前記積層体との接触面Ａにおける圧力の最大値及び最小値をそれぞれＰｍａｘ及びＰｍｉｎとしたときに、
Ｐｍｉｎ≧０．４Ｐｍａｘを満たし、
前記積層体は厚み方向から見て長手方向を有する形状を有し、
前記第１接触部材は、前記積層体の前記長手方向の一端部及び他端部とそれぞれ接触する一端部及び他端部を有し、
前記押圧する工程では、前記第１接触部材の前記一端部及び他端部と接触し、かつ、前記第１接触部材の前記一端部及び前記他端部の間の中央部と接触しない第１治具により、前記第１接触部材の前記一端部及び他端部を前記第２接触部材に向かって相対的に押圧する、方法。 A method for processing an end face of a laminate 10 having a plurality of films, comprising:
The first contact member and the second contact member press the laminate so that the first contact member and the second contact member come into contact with the laminate from both sides in the thickness direction of the laminate, and the laminate is formed. The process of fixing the body,
A step of processing the end surface of the fixed laminated body,
In the pressing step, when the maximum value and the minimum value of the pressure on the contact surface A of the first contact member with the stacked body are Pmax and Pmin, respectively,
Meet the Pmin ≧ 0.4Pmax,
The laminate has a shape having a longitudinal direction when viewed from the thickness direction,
The first contact member has one end and the other end that respectively contact one end and the other end in the longitudinal direction of the laminated body,
In the pressing step, a first treatment that contacts the one end portion and the other end portion of the first contact member and does not contact a central portion between the one end portion and the other end portion of the first contact member. A tool relatively pressing the one end and the other end of the first contact member toward the second contact member . 前記第１治具は金属部材である、請求項１に記載の方法。 The method according to claim 1 , wherein the first jig is a metal member. 前記第２接触部材は、前記積層体の前記長手方向の一端部及び他端部とそれぞれ接触する一端部及び他端部を有する、請求項１又は２に記載の方法。 The said 2nd contact member is a method of Claim 1 or 2 which has one end part and the other end part which respectively contact the one end part and the other end part in the said longitudinal direction of the said laminated body. 前記積層体の全端面のうちの７５％以上を加工する、請求項１〜３のいずれか一項に記載の方法。 It processed more than 75% of the total end surface of the laminate, the method according to any one of claims 1-3. 前記第１接触部材は金属部材である、請求項１〜４のいずれか１項記載の方法。 Wherein the first contact member is a metal member, any one method according to claim 1-4. 前記第１接触部材における前記積層体との接触面Ａの形状が環状である、請求項１〜５のいずれか１項に記載の方法。 The shape of the contact surface A with the laminate in the first contact member is annular, the method according to any one of claims 1-5. 前記接触面Ａの環の幅は５〜２５ｍｍである、請求項６に記載の方法。 The method according to claim 6 , wherein the width of the ring of the contact surface A is 5 to 25 mm. 前記第１接触部材における前記積層体との接触面Ａの形状は矩形環状又は楕円環状である、請求項６又は７に記載の方法。 The method according to claim 6 or 7 , wherein a shape of a contact surface A of the first contact member with the stacked body is a rectangular ring shape or an elliptical ring shape. 前記加工する工程の前において、前記積層体の厚み方向から見て、固定された前記積層体の外側端は、前記第１接触部材における前記積層体との接触面Ａの外側端よりも、０．８〜１．５ｍｍ外側に突出している、請求項６〜８のいずれか１項に記載の方法。 Before the step of processing, the outer end of the fixed laminate as viewed from the thickness direction of the laminate is 0 from the outer end of the contact surface A of the first contact member with the laminate. The method according to any one of claims 6 to 9 , wherein the method protrudes outward by 0.8 to 1.5 mm. 前記第２接触部材における前記積層体との接触面Ｅの形状は環状である、請求項１〜９のいずれか１項に記載の方法。 The shape of the contact surface E of the laminate of the second contact member is an annular, method according to any one of claims 1-9. 前記加工する工程は、前記積層体の前記端面に対して、前記積層体の厚み方向と平行な軸周りに回転するエンドミルの側面を接触させる工程を含む、請求項１〜１０のいずれか１項記載の方法。 Said step of processing, with respect to the end face of the laminate, comprising the step of contacting the side of the end mill rotating axis parallel around the thickness direction of the laminate, any one of claims 1-10 The method described. 第１接触部材の厚みは２〜１５ｍｍである、請求項１〜１１のいずれか１項記載の方法。 The thickness of the first contact member is 2 to 15 mm, any one method according to claim 1-11. 前記複数のフィルムの内の少なくとも一つは樹脂フィルムである、請求項１〜１２のいずれか１項記載の方法。 Wherein at least one of the plurality of films is a resin film, any one method according to claim 1-12. 複数のフィルムを積層して積層体を得る工程と、
前記積層体の端面を加工する工程と、を備え、請求項１〜１３のいずれか１項記載の方法で前記積層体の端面を加工する、端面加工フィルムの製造方法。 Stacking a plurality of films to obtain a laminate,
Wherein the step of processing the end face of the laminate, comprising a, for processing the end surfaces of the laminated body in any one of claims method according to claim 1 to 13, a manufacturing method of the end surface processed film. 複数のフィルムを有する積層体の端面を加工する端面加工装置であって、
前記積層体の一方面と接触する接触面Ａを有する第１接触部材と、
前記第１接触部材に接続された第１治具と、
前記積層体の他方面と接触する接触面Ｅを有する第２接触部材と、
前記第２接触部材に接続された第２治具と、
前記第１治具及び前記第２治具の少なくとも一方を他方に向かって押圧して前記第１接触部材及び前記第２接触部材の間に前記積層体を固定する押圧部と、
前記第１接触部材及び前記第２接触部材の間に固定される前記積層体の端面を加工する加工部と、を備え、
前記第１接触部材は、押圧する方向から見て長手方向を有する形状を有し、
前記第１治具は、前記第１接触部材における前記長手方向の一端部及び他端部と接触し、かつ、前記第１接触部材の前記一端部及び前記他端部の間の中央部と接触しない形状を有する、端面加工装置。 An end surface processing device for processing an end surface of a laminate having a plurality of films,
A first contact member having a contact surface A that contacts one surface of the laminate;
A first jig connected to the first contact member,
A second contact member having a contact surface E that contacts the other surface of the laminate,
A second jig connected to the second contact member;
A pressing portion that presses at least one of the first jig and the second jig toward the other to fix the laminated body between the first contact member and the second contact member;
A processing unit that processes an end surface of the laminated body that is fixed between the first contact member and the second contact member,
The first contact member has a shape having a longitudinal direction when viewed from the pressing direction,
The first jig is in contact with one end and the other end of the first contact member in the longitudinal direction, and is in contact with a central portion between the one end and the other end of the first contact member. An end face processing device having a shape that does not. 前記第１接触部材における前記積層体との接触面Ａの形状が環状である、請求項１５に記載の装置。 The device according to claim 15 , wherein a shape of a contact surface A of the first contact member with the stacked body is annular. 前記第２接触部材は、押圧する方向から見て、長手方向を有する形状を有し、
前記第１接触部材の長手方向と、前記第２接触部材の長手方向は平行である、請求項１５又は１６に記載の装置。 The second contact member has a shape having a longitudinal direction when viewed from the pressing direction,
The device according to claim 15 or 16 , wherein the longitudinal direction of the first contact member and the longitudinal direction of the second contact member are parallel to each other.
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