WO2018008691A1 - キャリアテープ - Google Patents
キャリアテープ Download PDFInfo
- Publication number
- WO2018008691A1 WO2018008691A1 PCT/JP2017/024680 JP2017024680W WO2018008691A1 WO 2018008691 A1 WO2018008691 A1 WO 2018008691A1 JP 2017024680 W JP2017024680 W JP 2017024680W WO 2018008691 A1 WO2018008691 A1 WO 2018008691A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier tape
- sheet
- storage
- thickness
- storage portion
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D73/00—Packages comprising articles attached to cards, sheets or webs
- B65D73/02—Articles, e.g. small electrical components, attached to webs
Definitions
- the present invention relates to a carrier tape. This application claims priority on July 7, 2016 based on Japanese Patent Application No. 2016-135298 for which it applied to Japan, and uses the content here.
- a carrier tape in which concave storage parts for storing products such as electronic parts are provided at regular intervals is widely used.
- the carrier tape is used after being stored in a storage section, sealed with a cover tape, and wound around a reel of various sizes (Patent Document 1).
- Patent Document 1 The carrier tape before the product is stored in the storage unit exists in a state of being wound around a reel.
- the wound carrier tape is in a state where the carrier tapes are overlapped with each other, the upper carrier tape storage portion is overlapped with the lower carrier tape storage portion, and the lower carrier tape is fitted. There has been a problem in that the storage part is deformed by being expanded.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a carrier tape in which the storage portions of the carrier tape wound around the reel are difficult to fit with each other and deformation of the storage portion is suppressed.
- a carrier tape that is a sheet having a flat part and a concave storage part formed in the flat part, wherein the area of the back surface of the storage part is 90% or more with respect to the area of the opening of the storage part
- Carrier tape characterized by its size.
- the difference obtained by subtracting the sheet thickness of the portion forming the side portion of the storage portion from the thickness of the portion forming the bottom surface of the storage portion is a value smaller than 0.05 mm.
- the storage portions of the carrier tape wound around the reel are difficult to fit together, and deformation of the storage portion is suppressed.
- the carrier tape 10 has a plurality of concave storage portions 2 that open on one surface (also referred to as a front surface) of the long sheet 1.
- a plurality of storage portions 2 are arranged side by side in a spaced manner in the length direction of the sheet 1.
- the plurality of storage units 2 may be arranged side by side in the width direction in addition to the length direction of the sheet 1.
- a plurality of sprocket holes (feed holes) 4 are arranged in parallel with each other in the length direction of the sheet 1 between the storage portion 2 and the side edge of the sheet 1.
- a part other than the part forming the storage part 2 and the sprocket hole 4 is referred to as a flat part 3.
- the front surface and the back surface of the flat portion 3 are flat surfaces.
- the length of the sheet 1 forming the carrier tape 10 can be, for example, 1 m or more and 4,000 m or less.
- seat 1 it can be 4 mm or more and 12 mm or less, for example.
- the length direction and the width direction of the sheet 1 are orthogonal to each other.
- the interval between adjacent storage portions 2 that are arranged side by side in the longitudinal direction of the sheet 1 can be set to 0.1 mm or more and 8 mm or less, for example.
- the interval between adjacent sprocket holes 4 can be, for example, 2 mm or more and 4 mm or less.
- the storage unit 2 is a concave depression that opens on the front side of the sheet 1.
- the bottom of the storage unit 2 bulges out on the other surface (also referred to as the back surface) of the sheet 1.
- the back surface of the portion of the sheet 1 constituting the bottom portion of the storage portion 2 is referred to as an outer bottom surface 6, and the back surface of the portion of the sheet 1 constituting the side portion of the storage portion 2 is referred to as an outer surface 7.
- the outer side surface 7 includes a curved surface adjacent to the back surface of the sheet 1 of the portion constituting the flat portion 3 and a curved surface adjacent to the outer bottom surface 6.
- the outer bottom surface 6 is a plane.
- the area of the back surface of the storage unit 2 (hereinafter also referred to as the back bottom surface area A) refers to the area of the outer bottom surface 6.
- the bottom surface area A is the product of the width W1 of the outer bottom surface 6 and the length L1 of the outer bottom surface 6.
- the width W1 of the outer bottom surface 6 is a length along the longitudinal direction of the sheet 1
- the length L1 of the outer bottom surface 6 is a length along the width direction of the sheet 1.
- a surface on the front side of the portion of the sheet 1 constituting the bottom of the storage portion 2 is referred to as an inner bottom surface 8
- a surface on the front side of the portion of the sheet 1 constituting the side portion of the storage portion 2 is referred to as an inner side surface 9.
- the inner side surface 9 includes a curved surface adjacent to the surface on the front side of the sheet 1 that constitutes the flat portion 3 and a curved surface adjacent to the inner bottom surface 8.
- the inner bottom surface 8 is a flat surface. A portion where the outer surface 7 of the storage portion 2 rises on the back surface of the sheet 1 is called an outer peripheral edge 11.
- the curved surface adjacent to the front side plane of the sheet 1 of the portion constituting the flat portion 3 of the inner side surface 9 is referred to as an opening peripheral portion 5.
- a surface surrounded by a boundary line 5a between the opening peripheral edge 5 and the central plane of the inner side surface 9 is referred to as an opening surface.
- the area of the opening surface of the storage part 2 is also referred to as the area of the opening part of the storage part 2 (hereinafter referred to as opening area B).
- the opening area B is the product of the width W2 of the opening surface and the length L2 of the opening surface.
- the opening surface has a substantially rectangular shape in a plan view in which the width direction of the sheet 1 is long and the length direction of the sheet 1 is short.
- the width W2 of the opening surface is a length along the longitudinal direction of the sheet 1, and the length L2 of the opening surface is a length along the width direction of the sheet 1.
- the carrier tape of the present invention is characterized in that the area of the back surface of the storage part 2 is 90% or more of the area of the opening.
- the ratio of the bottom surface area A / opening area B that is, the ratio of the size of the bottom surface area A to the opening area B is preferably 90 to 110%, and more preferably 97 to 103%.
- the back bottom surface area A / opening area B is within the above range, when the carrier tape 10 is wound around the reel, the storage portions 2 are not easily fitted to each other (that is, the two storage portions 2 overlapped vertically). Of these, the outer bottom surface 6 of the upper storage portion 2 can be less likely to fit into the opening of the lower storage portion 2.
- the radius of curvature R of the opening peripheral edge portion 5 is preferably 1 ⁇ 2 or less of the thickness of the sheet 1 of the flat portion 3 and is 1 ⁇ 4 or less of the thickness of the sheet 1 of the flat portion 3. It is more preferable that When the radius of curvature R of the opening peripheral edge portion 5 is within the above range, it is possible to make it difficult for the storage portions 2 to be fitted to each other when the carrier tape 10 is wound around the reel.
- the thickness of the sheet (hereinafter also referred to as the bottom thickness) forming the bottom surface of the storage portion 2 is the thickness of the sheet 1 of the flat portion 3 (hereinafter referred to as the flat portion thickness). It is preferable that it is smaller than the above.
- the difference obtained by subtracting the bottom portion thickness from the flat portion thickness, that is, (flat portion thickness ⁇ bottom portion thickness) is preferably 0.05 mm or more, more preferably 0.10 mm or more, and 0 More preferably, it is 15 mm or more.
- the upper limit of (the thickness of the flat portion ⁇ the thickness of the bottom portion) is preferably 0.40 mm or less, and more preferably 0.30 mm or less.
- the storage portion 2 of the storage portion 2 is described as described later in the manufacturing method. Since the back bottom surface area A can be increased, it is possible to make it difficult for the storage portions 2 to be fitted together when the carrier tape 10 is wound around the reel.
- the sheet thickness (hereinafter also referred to as side thickness) of the portion forming the side portion of the storage portion 2 does not become extremely thin when compared with the bottom thickness.
- the difference obtained by subtracting the side thickness from the bottom thickness that is, (bottom thickness ⁇ side thickness) is preferably less than 0.05 mm, and is 0 mm or less (that is, the side thickness is the bottom thickness). More preferably less than ⁇ 0.05 mm (ie, the side thickness is more than 0.05 mm thicker than the bottom thickness). Since (bottom portion thickness ⁇ side portion thickness) is within the above range, the radius of curvature R of the opening peripheral portion 5 can be reduced as described in a later manufacturing method. When wound up, the storage portions 2 can be made difficult to be fitted to each other.
- An example of the lower limit of (bottom thickness ⁇ side thickness) is about ⁇ 0.30 mm.
- the carrier tape 20 is the same as the carrier tape 10 except that the carrier tape 20 has a groove 12.
- the groove portion 12 is a recess existing between the side portion of the storage portion 2 and the flat portion 3 on the back side of the sheet 1.
- the groove portion 12 refers to two first groove portions 12a and two second groove portions 12b.
- the first groove portion 12 a extends in the width direction of the sheet 1 at the outer peripheral edge 11 of the storage portion 2 on the back surface of the sheet 1 (that is, the portion where the outer surface 7 of the storage portion 2 rises in the sheet 1).
- the two first groove portions 12a are formed so as to face each other with the storage portion 2 interposed therebetween.
- the second groove portion 12 b extends in the length direction of the sheet 1 on the outer peripheral edge 11 of the storage portion 2.
- the two second groove portions 12b are formed so as to face each other with the storage portion 2 interposed therebetween.
- the 1st groove part 12a and the 2nd groove part 12b may be connected in the corner
- the lengths L10 of the two first groove portions 12a facing each other are preferably the same. When the two lengths L10 are different, the ratio of these lengths is preferably 0.9 to 1.1.
- the length L20 of the two opposing second groove portions 12b is preferably the same. When the two lengths L20 are different, the ratio of these lengths is preferably 0.9 to 1.1.
- the length of each groove part 12 in plan view from the back surface of the sheet 1 is preferably 50% or more and 120% or less, and 60% when the length of each outer peripheral edge 11 along the length direction of each groove part 12 is 100%. 110% or less is more preferable, and 70% or more and 100% or less is more preferable. When there is a region where the first groove portion 12 a and the second groove portion 12 b overlap, the overlapping region is included in the length of each groove portion 12.
- the size of the storage portion 2 in the carrier tapes 10 and 20 described above is determined by the length and width of the outer peripheral edge 11 when the shape of the storage portion 2 when viewed from the back side of the sheet 1 is substantially rectangular. From the viewpoint of further exerting the effects of the present invention, the storage portion 2 is preferably the following size.
- the length of the outer peripheral edge 11 along the longitudinal direction of the sheet 1 (that is, the longitudinal direction of the carrier tape 20) is preferably 0.20 mm or more and 2.00 mm or less.
- the length of the outer peripheral edge 11 along the width direction of the sheet 1 (that is, the width direction of the carrier tape 20) is preferably 0.50 mm or more and 3.00 mm or less.
- the length of the outer peripheral edge 11 along the longitudinal direction of the sheet 1 is preferably shorter than the length of the outer peripheral edge 11 along the width direction of the sheet 1.
- the length of the outer peripheral edge 11 along the width direction of the sheet 1 is 0.30 mm or more and 0.60 mm or less, and the outer peripheral edge along the longitudinal direction of the sheet 1.
- the length of 11 is 0.15 mm or more and less than 0.45 mm.
- the thickness of the flat portion sheet of the carrier tape of the present invention is an average value obtained by measuring the thickness of the five flat portion sheets using a micro gauge.
- the cross section of the carrier tape observed using the microscope and the cross section of the carrier tape including the site measured using the optical microscope measuring machine are cross sections including the vicinity of the center of the opening of the storage unit.
- the thickness of the sheet of the portion forming the bottom surface of the storage portion is a value obtained by measuring the thickness of the vicinity of the center of the bottom surface of the storage portion in the cross section observed using a microscope for any five storage portions and averaging them. It is.
- the thickness of the sheet of the portion forming the side portion of the storage portion is measured for any five storage portions by measuring the thickness near the center of any side portion of the storage portion in the cross section observed using a microscope. The average value.
- the width of the outer bottom surface of the carrier tape storage portion of the present invention (see W1 in FIG. 1B) is set to an enlargement factor of 100 using an optical microscope measuring machine, and the flat portion (on the outer surface 7) on the center of the outer bottom surface.
- the length (excluding connected curved portions) (the length along the longitudinal direction of the carrier tape) is measured for any five storage portions and is an average value.
- the length of the outer bottom surface (see L1 in FIG. 1C) is a measurement of the length of the flat portion at the center of the outer bottom surface (the length along the width direction of the carrier tape) for any five storage units, The average value.
- the width of the opening surface (see W2 in FIG. 1B) of the carrier tape storage portion of the present invention is set to 100 times magnification using an optical microscope measuring machine, and the center length of the opening surface in the longitudinal direction of the carrier tape. Measure the length (the length of passing 5a to 5a in FIG. 1B) for any five storage units, and average the value as the width of the opening.
- 5 a in FIG. 1B is on the boundary between the inner side surface 9 and the curved opening peripheral edge 5.
- the length of the opening surface in the storage portion see L2 in FIG.
- 1C is set to a magnification of 100 times using an optical microscope measuring machine, and the center length of the opening surface in the width direction of the carrier tape ( 1A is measured for any five storage units, and the average value is taken as the length of the opening surface.
- 5 a in FIG. 1C is on the boundary between the inner side surface 9 and the curved opening peripheral edge portion 5.
- the radius of curvature (see R in FIG. 1B) of the peripheral edge of the opening in the carrier tape storage portion of the present invention is obtained as follows. First, using a microscope capable of measuring an image with a resolution of 1 ⁇ m or less, the magnification is set to 300 times, and the periphery of the opening in the longitudinal section of the carrier tape is observed. Next, the curvature radius is calculated from the coordinates of arbitrary three points on the outline (on the R line) of the peripheral edge of the opening.
- the curvature radius of the opening periphery of the present invention is an average value of the curvature radii obtained for any five storage portions.
- the length of the groove portion of the carrier tape of the present invention is determined by observing the groove portion viewed in plan from the back surface of the carrier tape with an optical microscope measuring device set to an enlargement magnification of 100 times, and any five groove portions for each groove portion. It is the value measured and averaged.
- the length of each side of the storage part formed on the carrier tape of the present invention is set by observing the outer periphery from the back surface of the carrier tape by setting the magnification to 100 times using an optical microscope measuring machine. It is a value obtained by measuring the lengths of arbitrary five sides and averaging them.
- the carrier tape of the present invention can be manufactured by sandwiching a sheet with a first mold and a second mold to form a storage portion.
- An example of the manufacturing method of the carrier tape according to the first embodiment of the present invention will be described in the case of manufacturing using the manufacturing apparatus 100 of FIGS. 3A to 3B.
- the manufacturing apparatus 100 includes a first mold 110 and a second mold 120. First, the first mold 110 and the second mold with the clamping surface 111 of the first mold 110 and the clamping surface 121 of the second mold 120 facing each other as shown in FIG. 3A. 120.
- the sheet 1 heated to an arbitrary temperature and softened is fed between the pressing surface 111 and the pressing surface 121.
- the draw punch 112 is projected from the punch hole 113 so as to be inserted into the punch receiving hole 122.
- the projected draw punch 112 pushes the sheet 1 into the punch receiving hole 122 with the punch end surface 114 pressed against the sheet 1.
- the pushed sheet 1 is stretched in the punch receiving hole 122 to form the storage portion 2.
- the obtained sheet 1 has substantially the same bottom thickness and flat thickness as shown in FIG. 4A.
- the back surface of the storage unit 2 becomes wider as shown in FIG. 4B, and the back bottom area is 90% or more of the opening area.
- a tape is obtained.
- a carrier tape having a bottom thickness smaller than the flat thickness is obtained.
- a carrier tape having a (bottom thickness ⁇ side thickness) smaller than 0.05 mm can be obtained.
- the radius of curvature R of the opening peripheral edge portion 5 of the storage portion 2 is reduced.
- the manufacturing apparatus 200 includes a first mold 110 and a second mold 220.
- the carrier tape manufacturing method according to the second embodiment of the present invention is the same as that of the second embodiment except that a second mold 220 having convex portions (also referred to as ribs) is used instead of the second mold 120 of FIG. It is the same as the manufacturing method of the carrier tape of one embodiment.
- the second mold 120 has a first rib 223 and a second rib 224.
- the draw punch 112 By projecting the draw punch 112, when the sheet 1 is pushed into the punch receiving hole 222, the first rib 223 formed on the pressing surface 221 compresses the sheet 1 to form the first groove 12 a, The second ribs 224 compress the sheet 1 to form the second groove 12b. At this time, since the sheet 1 is firmly sandwiched between the first rib 223 and the second rib 224, the sheet 1 does not shift toward the punch receiving hole 222 and is sufficiently stretched. As a result, the radius of curvature R of the opening peripheral edge portion 5 of the storage portion 2 is reduced.
- a polymer material constituting the sheet 1 applicable to the manufacturing method described above a polymer material of a resin sheet used in conventional press processing can be applied, for example, polyethylene terephthalate, polystyrene, polypropylene, polycarbonate, polyimide. And polyetherimide.
- a polystyrene-based resin in which the content of styrene monomer units with respect to all the monomer structural units of the polymer is 50 mol% or more and 100 mol% or less is preferable.
- the monomer other than the styrene monomer a known monomer copolymerizable with styrene is applicable.
- Storage part deformation ratio (%) [(opening area B′ ⁇ opening area B) / opening area B] ⁇ 100
- the calculated storage part deformation ratio indicates that the closer the absolute value is to 0%, the harder the storage parts are fitted to each other and the less the deformation.
- a storage portion was provided on a polystyrene resin sheet having a thickness of 0.2 mm.
- a carrier tape similar to the carrier tape 10 shown in FIGS. 1A to 1C was obtained by pushing the bottom of the storage portion.
- Table 1 shows details of the shape of the storage portion 2 formed.
- the second mold was the same as that shown in FIGS. 3A to 3B and had the following specifications. Punch end face of draw punch: 0.4mm long, 0.2mm short Receiving hole opening: 0.5mm long, 0.3mm short Extrusion depth: 0.3mm
- the obtained carrier tape was wound on a reel, and deformation evaluation of the storage part before and after winding was performed. The results are shown in Table 1.
- Examples 2 to 9, Comparative Examples 1 to 3 A carrier tape described in Table 1 was obtained in the same manner as in Example 1 except that the thickness of the sheet used and / or the thickness of the bottom portion was changed.
- Tables 1 and 2 show the details of the shape of the storage part and the calculation results of the deformation rate of the storage part.
- Example 10 Using a mold similar to that of the manufacturing apparatus 200 of FIGS. 5A to 5D, a storage portion was provided on a polystyrene resin sheet having a thickness of 0.2 mm. A carrier tape similar to the carrier tape 20 shown in FIGS. 2A to 2C was obtained by pushing the bottom of the storage portion. Details of the shape of the storage portion are shown in Table 2. The second mold was the same as that shown in FIGS. 5A to 5D and had the following specifications.
- Examples 11 to 18, Comparative Examples 4 to 6 A carrier tape described in Tables 1 and 2 was obtained in the same manner as in Example 10 except that the thickness of the sheet used and / or the thickness of the bottom portion was changed. Tables 1 and 2 show the details of the shape of the storage part and the calculation results of the deformation rate of the storage part.
- the deformation rate of the storage portion was low.
- the radius of curvature of the peripheral edge of the opening was 1 ⁇ 2 or less of the thickness of the sheet in the flat portion
- the deformation rate of the storage portion was low.
- the bottom thickness was smaller than the flat thickness
- the deformation rate of the storage portion was low.
- the difference obtained by subtracting the side portion thickness from the bottom portion thickness was a value smaller than 0.05 mm, the storage portion deformation rate was lowered.
- the carrier tape of the present invention is a carrier tape in which the storage portions of the carrier tape wound around the reel are difficult to fit with each other, and deformation of the storage portion is suppressed. Accordingly, the carrier tape of the present invention can be suitably used by allowing electronic components to be taken in and out appropriately.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Frangible Articles (AREA)
- Packages (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
キャリアテープは、収納部に製品が収納された後、カバーテープでシールされ、各種サイズのリールに巻き取られて用いられる(特許文献1)。
収納部に製品が収納される前のキャリアテープは、リールに巻き取られた状態で存在する。このとき、巻き取られたキャリアテープは、キャリアテープ同士が重なった状態であるため、上側のキャリアテープの収納部が下側のキャリアテープの収納部と重なって嵌合し、下側のキャリアテープの収納部が押し広げられて変形してしまうという問題が生じていた。
[1]平坦部と、平坦部に形成された凹状の収納部とを有するシートであるキャリアテープであって、収納部の裏面の面積が収納部の開口部の面積に対して90%以上の大きさであることを特徴とするキャリアテープ。
[2]収納部の開口周縁部の曲率半径が平坦部のシートの厚みの1/2以下であることを特徴とする[1]に記載のキャリアテープ。
[3]収納部の底面を形成する部分のシートの厚さが、平坦部のシートの厚さよりも小さいことを特徴とする[1]又は[2]に記載のキャリアテープ。
[4]収納部の底面を形成する部分のシートの厚さから、収納部の側部を形成する部分のシートの厚さを引いた差が、0.05mmよりも小さい値となることを特徴とする[1]~[3]のいずれか一つに記載のキャリアテープ。
[5]前記シートの裏側における、前記収納部の側部と平坦部との間に溝部を有することを特徴とする[1]~[4]のいずれか一つに記載のキャリアテープ。
本発明のキャリアテープの第一実施形態について、以下に図面を参照して説明する。
図1A~図1Cに示すように、キャリアテープ10は、長尺状のシート1の一方の面(表側の面ともいう)に開口する複数の凹状の収納部2を有する。シート1には、複数の収納部2がシート1の長さ方向に離間して並設される。図示しないが、複数の収納部2はシート1の長さ方向に加えて、幅方向にも離間して並設されていてもよい。また、シート1には、収納部2とシート1の側縁との間に、複数のスプロケットホール(送り穴)4が、シート1の長さ方向に離間して並設されている。シート1において、収納部2を形成する部位及びスプロケットホール4以外の部分を、平坦部3という。平坦部3の表側の面及び裏面は平面である。
シート1の長さ方向に離間して並設された隣り合う収納部2の間隔としては、例えば0.1mm以上8mm以下とすることができる。隣り合うスプロケットホール4の間隔としては、例えば2mm以上4mm以下とすることができる。
収納部2の底部を構成するシート1の部分の裏面を外底面6といい、収納部2の側部を構成するシート1の部分の裏面を外側面7という。外側面7は、平坦部3を構成する部分のシート1の裏面に隣接する曲面と、外底面6に隣接する曲面とを含む。外底面6は平面である。
収納部2の裏面の面積(以下、裏底面面積Aともいう)とは、外底面6の面積をいう。裏底面面積Aは、外底面6の幅W1と、外底面6の長さL1との積である。ここで、外底面6の幅W1はシート1の長手方向に沿う長さであり、外底面6の長さL1はシート1の幅方向に沿う長さである。
収納部2の底部を構成するシート1の部分の表側の面を内底面8といい、収納部2の側部を構成するシート1の部分の表側の面を内側面9という。内側面9は、平坦部3を構成する部分のシート1の表側の面に隣接する曲面と、内底面8に隣接する曲面とを含む。内底面8は平面である。
シート1の裏面における収納部2の外側面7が立ち上がる部分を外周縁11という。
裏底面面積A/開口面積Bが上記範囲内にあることにより、キャリアテープ10がリールに巻き取られた場合に収納部2同士が嵌合しにくく(すなわち、上下に重なった2つの収納部2のうち、上の収納部2の外底面6が下の収納部2の開口部に嵌合しにくく)することができる。
平坦部厚さを基準としたときの底部厚さとの差(平坦部の厚さ-底部の厚さ)が、上記範囲内にあることにより、後の製造方法に記載するように収納部2の裏底面面積Aを大きくすることができるため、キャリアテープ10がリールに巻き取られた場合に収納部2同士が嵌合しにくくすることができる。
(底部厚さ-側部厚さ)が上記範囲内にあることにより、後の製造方法に記載するように開口周縁部5の曲率半径Rを小さくすることができるため、キャリアテープ10がリールに巻き取られた場合に収納部2同士が嵌合しにくくすることができる。
(底部厚さ-側部厚さ)の下限値としては、例えば、-0.30mm程度が挙げられる。
図2A~図2Cに示すように、キャリアテープ20は、溝部12を有すること以外はキャリアテープ10と同様である。溝部12は、シート1の裏側において、収納部2の側部と平坦部3との間に存在する窪みである。溝部12は、2つの第一の溝部12aと、2つの第二の溝部12bとをいう。
第一の溝部12aは、シート1の裏面の収納部2の外周縁11(即ちシート1における収納部2の外側面7が立ち上がる部分)に、シート1の幅方向に延びている。2つの第一の溝部12aは、収納部2を挟んで互いに対向するように形成されている。第二の溝部12bは、収納部2の外周縁11に、シート1の長さ方向に延びている。2つの第二の溝部12bは、収納部2を挟んで互いに対向するように形成されている。第一の溝部12aと第二の溝部12bとは、収納部2の外周縁11の角部において、つながっていてもよく、離間していてもよい。
シート1の裏面から見て外周縁11に沿う溝部12を有することにより、後の製造方法に記載するように開口周縁部5の曲率半径Rを小さくすることができる。このため、キャリアテープ20がリールに巻き取られた場合に収納部2同士が嵌合しにくくすることができる。
シート1の裏面から平面視した各溝部12の長さは、各溝部12の長さ方向に沿う各外周縁11の長さを100%としたとき、50%以上120%以下が好ましく、60%以上110%以下がより好ましく、70%以上100%以下がさらに好ましい。第一の溝部12aと第二の溝部12bが重なる領域がある場合、その重なる領域は各々の溝部12の長さに含まれる。
シート1の長手方向(即ちキャリアテープ20の長手方向)に沿う外周縁11の長さは、0.20mm以上2.00mm以下が好ましい。
シート1の幅方向(即ちキャリアテープ20の幅方向)に沿う外周縁11の長さは、0.50mm以上3.00mm以下が好ましい。
シート1の長手方向に沿う外周縁11の長さは、シート1の幅方向に沿う外周縁11の長さよりも短いことが好ましい。
具体的な収納部2の大きさとしては、例えば、シート1の幅方向に沿う外周縁11の長さが0.30mm以上0.60mm以下であり、且つ、シート1の長手方向に沿う外周縁11の長さが0.15mm以上0.45mm未満である大きさが挙げられる。
以下、マイクロスコープを用いて観察したキャリアテープの断面、及び光学顕微鏡測定機を用いて測定した部位を含むキャリアテープの断面は、収納部の開口部の中央付近を含む断面とする。
収納部の底面を形成する部分のシートの厚さは、マイクロスコープを用いて観察した前記断面において収納部の底面の中央付近の厚さを、任意の5つの収納部について測定し、平均した値である。収納部の側部を形成する部分のシートの厚さは、マイクロスコープを用いて観察した前記断面において収納部の任意の側部の中央付近の厚さを、任意の5つの収納部について測定し、平均した値である。
同様に、収納部における開口面の長さ(図1CのL2参照)は、光学顕微鏡測定機を用いて拡大倍率100倍に設定して、キャリアテープの幅方向における開口面の中央の長さ(図1Cの5a~5aの差し渡しの長さ)を、任意の5つの収納部について測定し、平均した値を開口面の長さとする。ここで、図1Cの5aは、内側面9と湾曲した開口周縁部5の境界上にある。
本発明のキャリアテープは、第一の金型と第二の金型とで、シートを挟圧し、収納部を形成することによって製造することができる。
本発明の第一実施形態のキャリアテープの製造方法の一例について、図3A~図3Bの製造装置100を用いて製造を行う場合を説明する。
図3A~図3Bにおいて、製造装置100は第一の金型110と第二の金型120とを有する。まず、第一の金型110の挟圧面111と第二の金型120の挟圧面121とが、図3Aに示すように対向離間した状態で、第一の金型110と第二の金型120とを配置する。挟圧面111と挟圧面121との間に、任意の温度に加熱され軟化したシート1を送り込む。
次いで、ドローパンチ112をパンチ受入孔122に挿入するようにパンチ孔113から突出させる。突出されたドローパンチ112は、そのパンチ端面114をシート1に押し当てた状態で、シート1をパンチ受入孔122に押し込む。押し込まれたシート1は、パンチ受入孔122内で延伸されて、収納部2が形成される。
得られたシート1は、図4Aのように収納部2の底部厚さと平坦部厚さとが略同じものである。ここで、収納部2の底部を形成するシートの部分を上方に押しこむことによって、図4Bのように収納部2の裏面が広くなり、裏底面面積が開口面積に対して90%以上のキャリアテープが得られる。またこの際、底部厚さが平坦部厚さよりも小さいキャリアテープが得られる。また、(底部厚さ-側部厚さ)が0.05mmより小さいキャリアテープが得られる。この結果、収納部2の開口周縁部5の曲率半径Rが小さくなる。
図5Aにおいて、製造装置200は第一の金型110と第二の金型220とを有する。本発明の第二実施形態のキャリアテープの製造方法は、図3の第二の金型120の代わりに、凸部(リブともいう)を有する第二の金型220を用いること以外は、第一実施形態のキャリアテープの製造方法と同様である。
第二の金型120は、第一のリブ223と第二のリブ224とを有する。ドローパンチ112を突出させることにより、シート1をパンチ受入孔222に押し込む際、挟圧面221に形成された第一のリブ223がシート1を圧縮することで第一の溝部12aが形成され、第二のリブ224がシート1を圧縮することで第二の溝部12bが形成される。この際、シート1は、第一のリブ223及び第二のリブ224で強固に挟持されているため、シート1がパンチ受入孔222に向かってずれたりせず、十分に延伸される。この結果、収納部2の開口周縁部5の曲率半径Rが小さくなる。
(収納部の変形評価)
リールに巻き取られた際に、キャリアテープの収納部同士が嵌合しにくく、収納部の変形が抑制されているかについて、下記の収納部変形率を指標として評価した。
キャリアテープをリールに巻き取り、巻き取り前の開口面積Bと巻き取り後の開口面積B’から収納部変形率を以下の式により算出した。この際、巻き取り後の開口面積B’は、巻き取り後のキャリアテープをリールから繰り出して、前述した方法により測定した。
収納部変形率(%)=[(開口面積B’-開口面積B)/開口面積B]×100
算出した収納部変形率は、その絶対値が0%に近いほど、収納部同士が嵌合しにくく、変形が少なかったことを示す。
第二の金型は、図3A~図3Bに示すものと同様とし、下記の仕様とした。
ドローパンチのパンチ端面:長手0.4mm、短手0.2mm
受入孔開口部:長手0.5mm、短手0.3mm
押出深さ:0.3mm
得られたキャリアテープをリールに巻き取り、巻き取り前後の収納部の変形評価を行った。結果を表1に示す。
用いるシートの厚み及び/又は底部の厚さを変更した以外は、実施例1と同様にして表1に記載のキャリアテープを得た。収納部の形状の詳細及び収納部の変形率を算出した結果を表1,2に示す。
図5A~図5Dの製造装置200と同様の金型を用い、厚み0.2mmのポリスチレン系樹脂シートに収納部を設けた。収納部の底部を押し込むことにより、図2A~図2Cに示すキャリアテープ20と同様のキャリアテープとした。収納部の形状の詳細を表2に示す。
第二の金型は、図5A~図5Dに示すものと同様とし、下記の仕様とした。
ドローパンチのパンチ端面:長手0.4mm、短手0.2mm
受入孔開口部:長手0.5mm、短手0.3mm
押出深さ:0.3mm
第一のリブの長さl1:0.27mm
第一のリブの幅w1:0.1mm
第一のリブの高さh1:0.1mm
第二のリブの長さl2:0.13mm
第二のリブの幅w2:0.1mm
第二のリブの高さh2:0.1mm
得られたキャリアテープをリールに巻き取り、巻き取り前後の収納部の変形評価を行った。結果を表1に示す。
用いるシートの厚み及び/又は底部の厚さを変更した以外は、実施例10と同様にして表1,2に記載のキャリアテープを得た。収納部の形状の詳細及び収納部の変形率を算出した結果を表1,2に示す。
20 キャリテープ
1 シート
2 収納部
3 平坦部
4 スプロケットホール
5 開口周縁部
5a 境界線
6 外底面
7 外側面
8 内底面
9 内側面
11 外周縁
12 溝部
12a 第一の溝部
12b 第二の溝部
100 製造装置
110 第一の金型
111 挟圧面
112 ドローパンチ
113 パンチ孔
114 パンチ端面
120 第二の金型
121 挟圧面
122 パンチ受入孔
200 製造装置
220 第二の金型
221 挟圧面
222 パンチ受入孔
223 第一のリブ
224 第二のリブ
Claims (5)
- 平坦部と、平坦部に形成された凹状の収納部とを有するシートであるキャリアテープであって、収納部の裏面の面積が収納部の開口部の面積に対して90%以上の大きさであることを特徴とするキャリアテープ。
- 収納部の開口周縁部の曲率半径が平坦部のシートの厚みの1/2以下であることを特徴とする請求項1に記載のキャリアテープ。
- 収納部の底面を形成する部分のシートの厚さが、平坦部のシートの厚さよりも小さいことを特徴とする請求項1又は2に記載のキャリアテープ。
- 収納部の底面を形成する部分のシートの厚さから、収納部の側部を形成する部分のシートの厚さを引いた差が、0.05mmよりも小さい値となることを特徴とする請求項1~3のいずれか一項に記載のキャリアテープ。
- 前記シートの裏側における、前記収納部の側部と平坦部との間に溝部を有することを特徴とする請求項1~4のいずれか一項に記載のキャリアテープ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020187037244A KR20190026679A (ko) | 2016-07-07 | 2017-07-05 | 캐리어 테이프 |
JP2017568311A JPWO2018008691A1 (ja) | 2016-07-07 | 2017-07-05 | キャリアテープ |
SG11201811207UA SG11201811207UA (en) | 2016-07-07 | 2017-07-05 | Carrier tape |
CN201780038278.XA CN109311577B (zh) | 2016-07-07 | 2017-07-05 | 承载带 |
PH12018502596A PH12018502596A1 (en) | 2016-07-07 | 2018-12-10 | Carrier tape |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016-135298 | 2016-07-07 | ||
JP2016135298 | 2016-07-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018008691A1 true WO2018008691A1 (ja) | 2018-01-11 |
Family
ID=60912815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/024680 WO2018008691A1 (ja) | 2016-07-07 | 2017-07-05 | キャリアテープ |
Country Status (7)
Country | Link |
---|---|
JP (2) | JPWO2018008691A1 (ja) |
KR (1) | KR20190026679A (ja) |
CN (1) | CN109311577B (ja) |
PH (1) | PH12018502596A1 (ja) |
SG (1) | SG11201811207UA (ja) |
TW (1) | TWI710511B (ja) |
WO (1) | WO2018008691A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000185766A (ja) * | 1998-12-22 | 2000-07-04 | Nec Corp | エンボスキャリアテープ |
JP2003112772A (ja) * | 2001-10-04 | 2003-04-18 | Shin Etsu Polymer Co Ltd | キャリアテープ |
JP2009040498A (ja) * | 2007-08-08 | 2009-02-26 | Kaneko Denki Kk | キャリアテープ |
JP2011037215A (ja) * | 2009-08-18 | 2011-02-24 | Denki Kagaku Kogyo Kk | 真空成形金型およびキャリアテープの成形方法 |
JP2011225257A (ja) * | 2010-04-21 | 2011-11-10 | Shin Etsu Polymer Co Ltd | エンボスキャリアテープ及びその製造方法ならびに包装部品巻回体 |
JP2015110441A (ja) * | 2013-10-31 | 2015-06-18 | 株式会社村田製作所 | 電子部品の包装体、電子部品連およびキャリアテープ |
-
2017
- 2017-07-05 JP JP2017568311A patent/JPWO2018008691A1/ja active Pending
- 2017-07-05 KR KR1020187037244A patent/KR20190026679A/ko not_active Application Discontinuation
- 2017-07-05 SG SG11201811207UA patent/SG11201811207UA/en unknown
- 2017-07-05 TW TW106122525A patent/TWI710511B/zh active
- 2017-07-05 WO PCT/JP2017/024680 patent/WO2018008691A1/ja active Application Filing
- 2017-07-05 CN CN201780038278.XA patent/CN109311577B/zh active Active
-
2018
- 2018-10-18 JP JP2018197001A patent/JP2019014538A/ja active Pending
- 2018-12-10 PH PH12018502596A patent/PH12018502596A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000185766A (ja) * | 1998-12-22 | 2000-07-04 | Nec Corp | エンボスキャリアテープ |
JP2003112772A (ja) * | 2001-10-04 | 2003-04-18 | Shin Etsu Polymer Co Ltd | キャリアテープ |
JP2009040498A (ja) * | 2007-08-08 | 2009-02-26 | Kaneko Denki Kk | キャリアテープ |
JP2011037215A (ja) * | 2009-08-18 | 2011-02-24 | Denki Kagaku Kogyo Kk | 真空成形金型およびキャリアテープの成形方法 |
JP2011225257A (ja) * | 2010-04-21 | 2011-11-10 | Shin Etsu Polymer Co Ltd | エンボスキャリアテープ及びその製造方法ならびに包装部品巻回体 |
JP2015110441A (ja) * | 2013-10-31 | 2015-06-18 | 株式会社村田製作所 | 電子部品の包装体、電子部品連およびキャリアテープ |
Also Published As
Publication number | Publication date |
---|---|
CN109311577A (zh) | 2019-02-05 |
TW201806838A (zh) | 2018-03-01 |
PH12018502596A1 (en) | 2019-10-14 |
JPWO2018008691A1 (ja) | 2018-07-05 |
TWI710511B (zh) | 2020-11-21 |
KR20190026679A (ko) | 2019-03-13 |
CN109311577B (zh) | 2021-08-31 |
JP2019014538A (ja) | 2019-01-31 |
SG11201811207UA (en) | 2019-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5358510B2 (ja) | エンボスキャリアテープ及びその製造方法ならびに包装部品巻回体 | |
JP6016368B2 (ja) | 絞り加工用金型 | |
JP5417250B2 (ja) | エンボスキャリアテープ及びその製造方法ならびに包装部品巻回体 | |
JP4754356B2 (ja) | エンボスキャリアテープおよびその製造方法 | |
TWI614068B (zh) | 成形材料製造方法及其成形材料 | |
WO2018008691A1 (ja) | キャリアテープ | |
US6391424B1 (en) | Plastic sheet having creasing lines | |
WO2022142391A1 (zh) | 背板加工方法及背板 | |
KR102598266B1 (ko) | 웹 제조 방법, 및, 웹 | |
JP2015229322A (ja) | 押罫部材、罫入れ用型板、罫入れ装置および段ボールシート | |
WO2017212949A1 (ja) | キャリアテープ | |
JP5949724B2 (ja) | パネルの製造方法及びブランク材 | |
JP6436377B2 (ja) | ブランク板、ブランク板の製造方法および容器 | |
JP7455563B2 (ja) | 電池、フィルムの製造方法及び電池の製造方法 | |
JP5996199B2 (ja) | 絞り加工用金型 | |
JP2013237467A (ja) | 包装用容器 | |
JP2013154387A (ja) | 絞り加工用金型 | |
JP2014108519A (ja) | ナーリング加工装置 | |
US8986589B2 (en) | Carrier tray and method for manufacturing thereof | |
JP7460567B2 (ja) | 巻き取りロールおよび該巻き取りロールに巻き取られた光学フィルムロール | |
WO2016093101A1 (ja) | 容器及び容器の製造方法 | |
JP5262303B2 (ja) | 金属板のプレス成形方法 | |
WO2015083452A1 (ja) | 押罫部材、罫入れ用型板、罫入れ装置および段ボールシート | |
JP2014108518A (ja) | ナーリング加工装置 | |
JP6151838B1 (ja) | 押罫部材 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2017568311 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17824294 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20187037244 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 17824294 Country of ref document: EP Kind code of ref document: A1 |