TW201512070A - Conveyance apparatus - Google Patents

Abstract

A conveyance apparatus comprising: a conveyance line where a belt-like film is conveyed; rolls which configure the conveyance line; and a length measuring device which measures a conveyance amount of the film, wherein the length measuring device is provided in at least one of the rolls, a first region and a second region having a frictional force larger than that of the first region are provided on an outer peripheral surface of the roll where the length measuring device is provided, the first region is provided on a center portion in a width direction of the roll parallel to a central axis of the roll, the second region is provided on an edge portion in the width direction of the roll.

Description

Transport device

The present invention relates to a conveying device.

The present application claims priority based on Japanese Patent Application No. 2013-159972, filed on Jul. 31, 2013, the disclosure of which is incorporated herein.

In the related art, a conveying device of Patent Document 1 is known as a conveying device for conveying a belt-shaped film. The conveying device of Patent Document 1 includes a roller connected to a driving source such as a motor, and a rotary encoder that detects the rotation angle of the roller.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Special Open 2009-196750

However, depending on the place where the roller of the rotary encoder is provided, there is a case where the film slides with the roller. In particular, when the transport speed of the film is large, the occurrence of the above-described slippage becomes remarkable. In this case, the rotational speed of the roller becomes slower than the actual transport speed of the film. Therefore, there is a problem that the conveyance amount of the film cannot be accurately measured.

The present invention has been made in view of such circumstances, and provides a conveying apparatus capable of accurately measuring the amount of film conveyance.

In order to achieve the above object, the present invention employs the following means.

(1) The present invention relates to a conveying apparatus comprising: a conveying line that conveys a belt-shaped film; a plurality of rollers constituting the conveying line; and a length measuring device that measures a conveying amount of the film, the length a degree measuring device provided on at least one of the plurality of rollers; a first region provided on an outer circumferential surface of the roller provided with the length measuring device; and a second region having a larger frictional force than the first region The first region is provided at a central portion in the width direction of the roller parallel to the central axis of the roller, and the second region is provided at an end portion of the roller in the width direction.

(2) In the above aspect (1), the second region may be a region in which the belt is wound around the roller.

(3) In the above aspect (1) or (2), the roller provided with the length measuring device may be in contact with the surface of the film at an angle of a fulcrum angle of 90 or more.

(4) In any of the above aspects (1) to (3), the roller provided with the length measuring device may be a driving roller.

(5) In any one of the above aspects (1) to (4), the film may be a polarizing film, comprising: a polarizer and a pair of protective films sandwiching the polarizer; and the film is formed: a polarizer is formed in the region; and the polarizer is not formed in the non-formed region; the formation region is provided in a central portion in the width direction of the film perpendicular to the transport direction of the film; and the non-formation region is provided in the An end portion in the width direction of the film; the first region is configured to contact the formation region of the film; and the second region is configured to contact the non-formation region of the film.

According to the present invention, it is possible to provide a conveying apparatus capable of accurately measuring the amount of film conveyance.

1‧‧‧Transporting device

2‧‧‧First line

3‧‧‧ second line

4‧‧‧ third line

5‧‧‧ Defect inspection device

6‧‧‧recording device

15‧‧‧Control device

16‧‧‧ memory device

21a, 22a, 23a‧‧‧Lighting Department

21b, 22b, 23b‧‧‧ photodetectors

30, 33, 36, 39‧‧‧ guide rolls (rollers)

30a‧‧‧Center axis

30s‧‧‧Transfer surface

30s1‧‧‧ first area

30s2‧‧‧Second area

31, 32, 34, 35, 37, 38‧‧‧ nip rolls

40‧‧‧ Length measuring device

50‧‧‧With

F‧‧‧ film

F1‧‧‧ polarizer

F2, F3‧‧‧ protective film

FA‧‧ wide

FA1‧‧‧ effective area

FA2‧‧‧Inactive area

Fp1, Fp2‧‧‧ contacts

Fs‧‧‧ surface

L‧‧‧Transport line

R‧‧‧Materials

SA‧‧‧ formation area

SA1‧‧‧ first formation area

SA2‧‧‧Second formation area

SB‧‧‧ non-formed area

TA‧‧‧ area

R1, r2‧‧‧ diameter

Θ‧‧‧ embracing angle

The first figure is a schematic configuration diagram of a conveying device according to an embodiment of the present invention.

The second figure is a cross-sectional perspective view showing a part of the strip film.

Fig. 3A is a schematic view showing a roller according to an embodiment of the present invention.

Fig. 3B is a schematic view showing a roller according to an embodiment of the present invention.

The fourth figure is a view for explaining the encirclement angle when the film is conveyed by a roll.

Fig. 5 is a schematic view showing a roller according to a first modification.

Fig. 6 is a schematic view showing a roller according to a second modification.

Fig. 7 is a schematic view showing a roller according to a third modification.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited to the same embodiment. In the following drawings, the dimensions, ratios, and the like of the respective constituent elements are appropriately changed as described in the embodiment. In the following description and the drawings, the same or corresponding elements are designated by the same reference numerals, and the description thereof will not be repeated.

The first figure is a schematic configuration diagram of a conveying device 1 according to an embodiment of the present invention. The conveying device 1 is a member that conveys the film F. The film F may be any tape-like film having flexibility, and the material or structure thereof is not particularly limited.

As shown in the first figure, the conveying device 1 includes a first line 2, a second line 3, and a third line 4. The transport line L (the transport line in which the strip-shaped film is transported) of the strip-shaped film F is formed by the first line 2, the second line 3, and the third line 4.

A plurality of rollers are provided on each of the lines 2 to 4 (for example, in the present embodiment, the guide rollers 30, 33, 36, 39, nip rolls 31, 32, 34, 35, 37, 38), plural Each of the rolls forms a transport path of the film F. The respective units of the transport device 1 are integrated and controlled by a control device 15 as an electronic control device.

The first line 2 manufactures and conveys the film F. As shown in the second figure, the film F of the present embodiment is a polarizing film including a polarizer F1 and a pair of protective films F2 and F3 next to the polarizer F1. In the second diagram, the belt-shaped members such as the polarizer F1 and the protective films F2 and F3 are referred to as a long direction (a deep direction in the second drawing), and a direction perpendicular to the long direction is referred to as a width. Direction (left and right direction in the second figure). Further, in the second drawing, although the thickness direction of the film F (the vertical direction in the second drawing) is enlarged, the actual thickness is extremely thin with respect to the width direction.

In the present embodiment, the width of the polarizer F1 is smaller than the width of the protective films F2 and F3.

The film F is provided with a formation region SA in which the polarizer F1 is formed and a non-formation region SB in which the polarizer F1 is not formed. The formation region SA is provided at the central portion in the width direction of the film F. The non-formation regions SB are provided at both end portions in the width direction of the film F. The width of the non-formed region SB is smaller than the width of the formation region SA. For example, the width of the formation region SA is 1300 mm, and the width of the non-formation region SB is 100 mm.

In the first line 2, PVA (Polyvinyl) which becomes the substrate of the polarizer F1 Alcohol) film, applying dyeing treatment, bridging treatment, and elongation treatment. Then, the film F is produced by laminating the protective films F2 and F3 composed of TAC (Triacetylcellulose) or the like on both surfaces of the polarizer F1.

Further, the film F is not limited to the polarizing film, and may be a retardation film, a light diffusion film, or Other films such as a light reflecting film, a lens film, a conductive film, an insulating film, and a photosensitive film.

In the first line 2, a defect inspection device 5 is provided. Defect inspection device 5 is detecting Various defects such as foreign matter defects, uneven defects, and bright spot defects which are generated when the film F is produced or when the film F after the production is conveyed. The defect inspection device 5 detects defects of the film F by performing inspection processes such as reflection inspection, light transmission inspection, oblique light transmission inspection, and crossed-light transmission inspection on the film F being conveyed.

The defect inspection device 5 includes illumination units 21a, 22a, and 23a that illuminate light to The film F; and the photodetectors 21b, 22b, 23b detect the light that is irradiated from the illumination portions 21a, 22a, 23a and passes through the film F (either one of the reflection and the light transmission, or both), and the film F is changed by the defect. . The defect inspection device 5 includes an illumination unit and a photodetector for each type of defect to be inspected.

The illumination portions 21a, 22a, 23a are corresponding to the inspection by the defect inspection device 5. The type is used to illuminate light that adjusts the light intensity, wavelength, and polarization state. The photodetectors 21b, 22b, and 23b are formed of an imaging element such as a CCD (Charge Coupled Device), and capture a film F of a portion where the illumination portions 21a, 22a, and 23a emit light. The detection results (photographing results) of the photodetectors 21b, 22b, and 23b are output to the control device 15.

In the first line 2, the film F is pinched by the nip rolls 31, 32 while being guided by the guide rolls 33. Guided and sent to the second line 3 on the downstream side. At the second line 3, the film F is pinched by the nip rolls 34, 35 and guided by the guide rolls 30, 36, and sent to the third line 4 on the downstream side.

A recording device 6 is provided on the third line 4. Recording device 6 will be tested by defect inspection device 5 The defect information about the defect detected is recorded in the film F. The defect information contains information about the location or type of the defect.

The recording device 6 uses, for example, defect information as an identification code (one-dimensional barcode, two-dimensional bar) The form of the code, QR code (registered trademark) is recorded in the width direction end of the film F. In the identification code, the inclusion of a defect indicating that the defect is detected by the defect inspection device 5 exists at a position along the position from which the barcode is given Information on the position where the film width direction is only a few distance away (information about the defect position). In the identification code, information about the type of defect detected may also be included.

The recording device 6 can also be provided with sufficient defects by the defect at the film F. A dot-like, linear or frame-like mark of the size of the depression directly indicates (marks) the defect on the film F. At this time, a symbol or a pattern indicating the type of the defect may be given to the defect together with the above-mentioned symbol, and information on the type of the defect may be recorded.

In the third line 4, the film F is pinched by the nip rolls 37, 38 while being guided by the rolls 39 guide, send to the downstream side. Then, the material roll R of the film F is produced by winding up the film F on the core material.

A length measuring device 40 is provided on the conveying line L of the film F, and the length measuring device 40 measures The amount of the film F conveyed. The length measuring device 40 is, for example, a rotary encoder that outputs a pulse train in accordance with the rotational shift amount of the rotating shaft of the rotating body that is in contact with the film F and rotates. The conveyance amount of the film F is detected based on the rotation angle and the outer circumference length of the encoder measured by the length measuring device 40. The measurement result of the length measuring device 40 is output to the control device 15.

The length measuring device 40 of the present embodiment is only provided in a plurality of rollers. Roller 30. The guide roller 30 is a drive roller. For example, the rotational driving of the guide roller 30 is performed by the control device 15 with a driving source such as a motor.

Furthermore, in the present embodiment, the length measuring device 40 is provided only in a plurality of rollers. Guide roller 30, but is not limited thereto. For example, the length measuring device 40 may be provided on a roller other than the guide roller 30 (for example, the guide roller 36). Further, the length measuring device 40 may be provided in one of a plurality of rollers or may be provided in two or more rollers. That is, the length measuring device 40 may be provided on at least one of the plurality of rollers.

The control device 15 interprets and analyzes the photographs taken by the photodetectors 21b, 22b, 23b. Image, determine the location or type of defect, etc. In the case where the control device 15 judges that the defect exists in the film F, the recording device 6 is controlled and the defect information is recorded on the film F.

The control device 15 is not in the defect position of the film F and the recording position of the defect information. Deviation occurs between the defect information at a specific time after the defect inspection. For example, the control device 15 detects the conveyance amount of the film F conveyed on the conveyance line L after the defect inspection device 5 performs the defect inspection based on the measurement result of the length measuring device 40, and detects the detected amount. When the conveyance amount coincides with the offset distance, recording is performed by the recording device 6.

The offset distance is the movement of the film F between the defect inspection device 5 and the recording device 6. Send the distance. Strictly speaking, the offset distance is defined as the transport distance of the film F between the position at which the defect inspection device 5 performs the defect inspection (the defect inspection position) and the position at which the recording device 6 performs the defect information recording (the recording execution position). The offset distance is memorized in the memory device 16. A plurality of photodetectors 21b, 22b, and 23b are present in the defect inspection device 5, and each photodetector performs defect inspection. Therefore, in the memory device 16, the offset distance is memorized for each of the photodetectors 21b, 22b, and 23b.

Further, the control device 15 of the present embodiment is configured to include a computer system. This computer system includes an arithmetic processing unit such as a CPU and a memory unit such as a memory or a hard disk. The control device 15 of the present embodiment includes an interface for performing communication with an external device of the computer system. An input device to which an input signal can be input can also be connected to the control device 15. The input device includes an input device such as a keyboard or a mouse, or a communication device that can input data from an external device of the computer system. The control device 15 may include a display device such as a liquid crystal display indicating the operation state of each unit of the transport device 1, or may be connected to the display device.

An operating system (OS) for controlling the computer system is installed in the memory unit of the control device 15. In the memory unit of the control device 15, a program for executing various processes in each unit of the transport device 1 by controlling each unit of the transport device 1 in the arithmetic processing unit is recorded. Various pieces of information included in the program recorded in the memory unit can be read by the arithmetic processing unit of the control device 15. The control device 15 may include a logic circuit such as an application specific integrated circuit (ASIC), and performs various processes required for control of each unit of the transport device 1.

3A and 3B are schematic views of the guide roller 30 (roller) according to an embodiment of the present invention.

The third A is a perspective view, and the third B is a top view. Further, in the third A and B diagrams, the direction parallel to the central axis 30a of the guide roller 30 is referred to as the width direction of the guide roller 30 (the left-right direction in the third B diagram).

As shown in the third and third B diagrams, on the outer circumferential surface of the guide roller 30, there are provided: a first region 30s1; and a second region 30s2 having a larger frictional force than the first region 30s1. The first region 30s1 is provided at a central portion in the width direction of the guide roller 30. The second region 30s2 is provided on the guide roller 30 Both ends of the width direction.

Further, in the present embodiment, the second region 30s2 is provided in the width of the guide roller 30. Both ends of the direction, but are not limited thereto. For example, the second region 30s2 may be provided only at one end portion of the guide roller 30 in the width direction. In this case, the first region 30s1 is provided on the other end side in the width direction of the guide roller 30. However, from the viewpoint of stably conveying the film F, it is preferable that the second region 30s2 is provided at both end portions in the width direction of the guide roller 30.

In the present embodiment, the first region 30s1 is configured to form the contact film F. Area SA (refer to the second figure). The second region 30s2 is configured to contact the non-formation region SB of the film F (refer to the second diagram).

The width of the second region 30s2 is smaller than the width of the first region 30s1. E.g, The width of the first region 30s1 is 1300 mm, and the width of the second region 30s2 is 100 mm.

In the present embodiment, the first region 30s1 is the roller body of the guide roller 30 exposed Area. The first area 30s1 is a smooth surface. The second region 30s2 is a region where the belt is wound around the guide roller 30. The belt is detachably wound around the roller body. For example, as the width of the belt, a width of 25 mm and a width of 50 mm are listed, but are not limited to these widths, and various widths may be employed.

Further, in the present embodiment, as an example of the second region 30s2, a tape is cited. The area wound around the guide roller 30 is illustrated, but is not limited thereto. For example, the second region 30s2 may be a region that is processed by the guide roller to impart a high friction region (for example, a plurality of fine irregularities) to the guide roller. However, considering the processing cost or labor of the guide roller, as the second region 30s2, it is preferable that the belt is wound around the guide roller 30.

In the present embodiment, between the first region 30s1 and the second region 30s2, With height difference. In the guide roller 30, the diameter r2 of the second region 30s2 is larger than the diameter r1 of the first region 30s1 (r2 > r1). For example, the difference between the diameter r1 and the diameter r2 is a value of 0.06 mm or more and 0.4 mm or less. Specifically, when the belt having a thickness of 0.03 mm is wound by one turn, the aforementioned difference is 0.06 mm, and when two turns are wound, the aforementioned difference is 0.12 mm. Further, when the thickness band of 0.1 mm was wound by one turn, the aforementioned difference was 0.2 mm, and when the two turns were wound, the difference was 0.4 mm. Further, the thickness of the belt and the number of windings of the belt are not limited thereto, and various values can be suitably employed.

In the present embodiment, the diameter r2 is larger than the diameter r1, so when the film F is conveyed, In the second region 30s2 of the guide roller 30, it is held and moved with a greater tension than the first region 30s1 Film F is sent. Therefore, compared with the diameter r1 and the diameter r2 in the same case, it is possible to suppress the film F from sliding with the guide roller 30.

For example, in the guide roller 30, the roller body is in the form of a metal material such as iron or stainless steel. to make. Since the roller body is formed of a metal material, the roller body is formed of a resin material such as rubber, and the durability is excellent, and generation of dust can be suppressed. Therefore, the roller bodies do not need to be periodically exchanged in a short period of time.

On the other hand, the belt is formed of a material having a greater friction than the roller body. For example, use Kapton tape as a belt.

In the present embodiment, the guide roller 30 is connected at a hoop angle of 90° as shown in the fourth figure. The surface Fs of the touch film F. Here, the "circumference angle" refers to the conveyance direction of the film F in a state where the surface Fs of the film F contacts the conveyance surface 30s of the guide roller 30 when viewed from the direction of the central axis 30a of the guide roller 30 ( In the fourth diagram, the tangent to the contact point Fp1 on the upstream side of the transport surface 30s in the direction indicated by the arrow T is at an angle to the tangent to the contact Fp2 of the transport surface 30s on the downstream side in the transport direction of the film F. θ.

Further, in the present embodiment, the embracing angle θ is 90°, but it is not limited thereto. For example, the embracing angle θ may be an angle of 90° or more.

As described above, according to the conveying device 1 of the present embodiment, the guide roller is used. The second region 30s2 of 30 suppresses the sliding of the film F. Moreover, even when the conveyance speed of the film F becomes large, the occurrence of the above-described slip can be suppressed. Therefore, the conveyance amount of the film F can be measured correctly.

If the transport device with the defect inspection device is provided, the length measuring device is provided. When the roller slides, the film transport speed cannot be accurately measured. Therefore, there is a problem that the defect coordinates detected by the defect inspection device (for example, components in the film transport direction) vary. On the other hand, in the conveying apparatus 1 of the present embodiment, the sliding of the film F is suppressed as described above, so that such a problem can be solved.

Also, since the second region 30s2 is an area in which the belt is wound around the guide roller 30, It is less costly and less labor intensive than machining the guide rolls and imparting a high friction zone to the guide rolls.

Further, since the guide roller 30 contacts the surface Fs of the film F at a viewing angle of 90°, In the case where the surface Fs of the film F is contacted with the guide roller 30 at a subangle angle of 90°, the winding region of the film F with respect to the conveying surface 30s of the guide roller 30 becomes large. Therefore, the sliding of the film F can be surely suppressed.

Further, since the guide roller 30 is a drive roller, the film F becomes difficult to slide on the surface of the guide roller 30 as compared with the case where the guide roller 30 is a free roller.

Further, since the film F is a polarizing film, the first region 30s1 of the guide roller 30 is configured as the formation region SA of the contact film F, and the second region 30s2 of the guide roller 30 is configured as the non-formation region SB of the contact film F, Therefore, when dust or the like adheres to the surface of the belt, it is possible to suppress adhesion of the dust or the like to the formation region SA of the film F. Moreover, even when the fine unevenness is formed in the second region 30s2, it is possible to suppress the damage caused by the unevenness in the formation region SA. In addition, even if dust or the like adheres to the non-formation region SB of the film F, damage or the like is caused, and the non-formation region SB is cut or the like, and the product (polarized film) having excellent quality can be obtained.

(First Modification)

The fifth diagram is a schematic view showing the guide roller 30 according to the first modification. In the fifth embodiment, the same components as those in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the above embodiment, the second region 30s2 of the guide roller 30 is configured to be in contact with only the non-formation region SB of the film F (the region in which the tape is wound is disposed only to overlap with the non-formation region SB of the film F). The example of the location is illustrated, but is not limited to this. For example, as shown in FIG. 5, the region TA of the wrapable tape 50 is not only disposed in the non-formation region SB of the film F, but may be disposed in a portion of the formation region SA with the film F (second formation region SA2). Overlapping locations.

As shown in the fifth figure, the full width FA of the film F is the sum total width of the width of the formation region SA of the film F and the width of the non-formation region SB. The formation region SA of the film F has a first formation region SA1 and a second formation region SA2. The first formation region SA1 is provided at a central portion in the width direction of the polarizer F1. The second formation region SA2 is provided at both end portions in the width direction of the polarizer F1. For example, since the polarizer is formed by the stretching process, when both ends of the polarizer in the width direction cannot function as a polarizer, the portion which functions as a polarizer is the first formation region SA1. The portion which cannot function as a polarizer is the second formation region SA2. The width of the second formation region SA2 is smaller than that of the first formation region SA1. For example, the width of the first formation region SA1 is 1100 mm, and the width of the second formation region SA2 is 100 mm.

In the present modification, the region TA of the wrapable tape 50 is disposed at a position overlapping the region where the second formation region SA2 and the non-formation region SB of the film F are combined.

(Second Modification)

The sixth drawing is a schematic view showing the guide roller 30 according to the second modification. In the sixth embodiment, the same components as those in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the above embodiment, an example in which the film F includes the polarizer F1 is described, but the invention is not limited thereto. For example, as shown in the sixth figure, the film F may not contain the polarizer F1. In this case, the region TA of the windable tape 50 may be disposed at a position overlapping with a region (non-effective area FA2) incapable of effectively utilizing the film F.

As shown in the sixth figure, the full width FA of the film F is the width of the effective area FA1 of the film F. The sum total width of the width of the degree and the non-effective area FA2. For example, the portion of the film F that is effectively utilized as a product is the effective area FA1, and the portion that cannot be utilized as a product is the non-effective area FA2. The width of the inactive area FA2 is smaller than the width of the effective area FA1. For example, the effective area FA1 has a width of 1300 mm, and the non-effective area FA2 has a width of 100 mm.

In the present modification, the region TA of the wrapable tape 50 is disposed on the film F The position where the non-effective area FA2 overlaps.

(Third Modification)

The seventh drawing is a schematic view showing the guide roller 30 according to the third modification. In the seventh embodiment, the same components as those in the above-described embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the above embodiment, an example in which one belt 50 is wound around the guide roller 30 will be described, but the invention is not limited thereto. For example, as shown in the seventh figure, it is also possible to wind two strips 50 on the guide roller 30. Further, the number of windings of the belt 50 is not limited to two, and may be three or more plural.

The preferred embodiments of the present embodiment have been described above with reference to the accompanying drawings, but the invention is not limited to the embodiments. The respective shapes, combinations, and the like of the respective constituent members shown in the above examples are merely examples, and various modifications can be made according to design requirements without departing from the gist of the invention.

1‧‧‧Transporting device

2‧‧‧First line

3‧‧‧ second line

4‧‧‧ third line

5‧‧‧ Defect inspection device

6‧‧‧recording device

15‧‧‧Control device

16‧‧‧ memory device

21a, 22a, 23a‧‧‧Lighting Department

21b, 22b, 23b‧‧‧ photodetectors

30, 33, 36, 39‧‧‧ guide rolls (rollers)

31, 32, 34, 35, 37, 38‧‧‧ nip rolls

40‧‧‧ Length measuring device

F‧‧‧ film

L‧‧‧Transport line

R‧‧‧ raw material rolls

Claims (5)

A conveying device includes: a conveying line that conveys a belt-shaped film; a plurality of rollers constituting the conveying line; and a length measuring device that measures a conveying amount of the film, wherein the length measuring device is provided in at least one of the plurality of rollers a roller; a first region provided on an outer circumferential surface of the roller provided with the length measuring device; and a second region having a larger frictional force than the first region; the first region being disposed on a central axis of the roller The second portion of the roller in the width direction of the parallel roller is provided at an end portion of the roller in the width direction. The conveying device according to claim 1, wherein the second region is a region in which the belt is wound around the roller. The transfer device according to claim 1 or 2, wherein the roller provided with the length measuring device contacts the surface of the film at an angle of 90° or more. The conveying device according to any one of claims 1 to 3, wherein the roller provided with the length measuring device is a driving roller. The transfer device according to any one of claims 1 to 4, wherein the film is a polarizing film, comprising: a polarizer and a pair of protective films next to the polarizer; and the film is provided with: a formation region The polarizer is formed; and the non-formed region is not formed; the formation region is provided at a central portion in the width direction of the film perpendicular to the transport direction of the film; and the non-formation region is provided on the film The end portion in the width direction; the first region is configured to contact the formation region of the film; and the second region is configured to contact the non-formation region of the film.