JP2011201619A - End part protective member and glass film packing body using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely protect the tail end edge of a glass film, and to maintain work efficiency in a good condition required for protection of the tail end edge.SOLUTION: An end part protective member 6 for protecting the tail end part of the long side glass film G includes an elastic body having a slit part 61 having a width wider than the tail end edge of the glass film G and holding the tail end part including the tail end edge of the glass film G without being exposed to an external part using elasticity inside the slit part 61.

Description

  The present invention relates to an end protection member that protects a terminal portion of a long glass film, and a technique for improving a glass film package in which a glass film is wound around a reel core with a flange and stored.

  As is well known, in various glass plates including a glass substrate for electronic parts, further thinning is being promoted from the viewpoint of reducing the weight and expanding the field of use. In particular, a glass plate thinned to a film shape (hereinafter referred to as a glass film) has high flexibility, and thus is being applied to various fields using the characteristics.

  As a packaging form of this type of glass film, a form in which a glass film is wound in a roll shape and accommodated on a reel core having a pair of flanges facing each other at an interval has been proposed. It is set as the structure which draws out a glass film from the winding core of this, and cuts it to required length.

  Therefore, since the terminal edge of the glass film becomes a cut surface, it becomes very brittle and easily damaged. In particular, when the glass film is cut, when the glass film is broken, the end edge of the glass film after cutting is likely to be serrated, particularly easily damaged, as compared with the case of using a laser or the like.

  Therefore, if the end edge of the glass film is exposed to the outside in a state where it is not protected at all, there may arise a problem that the end edge of the glass film comes into contact with the flange or the like due to vibration during transportation or the like and is easily damaged. Furthermore, when breakage occurs in the terminal edge of such a glass film, the breakage may progress in the longitudinal direction, or the entire glass film wound by glass powder generated at the time of breakage may be contaminated.

  Therefore, it is necessary to protect the terminal part including the terminal edge of the glass film. For example, when a resin tape is attached to the terminal part of the glass film for protection, the resin tape is cut every time the glass film is cut. Removal and installation work is necessary and is troublesome. Moreover, when the resin tape is peeled off from the glass film and removed, unnecessary stress acts on the glass film, and the glass film may be damaged starting from the terminal edge.

  On the other hand, Patent Document 1 and Patent Document 2 disclose a technique for processing a terminal portion of a tape to which an electronic component or the like is attached, although it is not related to a glass film. That is, in these documents, a clip in which the tape described above is wound around a reel core having a pair of flanges facing each other at intervals, and a terminal portion of the clip is fitted into the peripheral edge of the pair of flanges. (Or stopper). This clip is made of an elastic resin, and with the end edge of the tape exposed to the outside, the vicinity of the end portion excluding the end edge is sandwiched and held from the upper and lower sides by the elasticity of the resin. ing.

Japanese Utility Model Publication No. 63-93373 Japanese Utility Model Publication No. 4-135559

  By the way, in the methods disclosed in Patent Documents 1 and 2, as described above, the vicinity of the end of the tape is held using the elasticity of the clip fitted to the peripheral edge of the flange of the reel. And can be installed easily. Therefore, if the methods disclosed in these documents are applied to a glass film, troublesome work is not forced every time the glass film is cut.

  However, if the methods disclosed in Patent Documents 1 and 2 are applied to a glass film, the following problems may occur. That is, in the methods disclosed in these documents, since the end edge of the tape is exposed to the outside of the clip, when the tape is replaced with a glass film, the end edge of the glass film is protected at all. It will be exposed outside the clip. Therefore, although the workability of holding the vicinity of the end portion of the glass film is improved, it can be said that the possibility that the end edge of the glass film is damaged is still high.

  In view of the above circumstances, an object of the present invention is to reliably protect the end edge of the glass film and to maintain good workability required for protecting the end edge.

  The present invention invented in order to solve the above problems is an end protection member for protecting the end portion of a long glass film, and has a slit portion wider than the end edge of the glass film, The slit portion is characterized by being formed of an elastic body that uses elasticity to hold the terminal portion including the terminal edge of the glass film without exposing the glass film to the outside.

  According to such a configuration, the terminal portion including the terminal edge of the glass film is held inside the slit portion that is wider than the terminal edge, and is not exposed to the outside from the slit portion in this holding state. . And since the edge part protection member which has this slit part is formed with the elastic body, the termination | terminus part containing the termination | terminus edge of a glass film is reliably protected with moderate elasticity. Therefore, it is possible to reliably prevent the glass film from being damaged starting from the terminal edge of the glass film.

  Furthermore, since the end portion including the end edge of the glass film is held in the slit portion of the end protection member using the elasticity of the end protection member, it is easy to hold and release the end portion of the glass film. It can be carried out. Therefore, it becomes possible to maintain the workability of holding | maintenance of the terminal part of a glass film, and the cancellation | release operation | work favorably.

  In the above-described configuration, when the elastic body is sandwiched and pressed, the slit portion expands and the terminal portion of the glass film can be inserted, and is provided to the elastic body from the expanded state. When the pressing force is released, it is preferable that the glass film is closed again and the end portion of the glass film can be gripped.

  If it does in this way, a slit part will be expanded automatically only by pinching and pressing an edge part protection member (elastic body), and the termination part of a glass film can be inserted in a slit part. Further, if the pressing force applied to the end protection member is released, the slit portion is automatically closed, and the end portion of the glass film is held in a state of being gripped by the slit portion. Therefore, the holding | maintenance and the cancellation | release of the termination | terminus part of a glass film become still easier, and the improvement of working efficiency can be aimed at.

  Said structure WHEREIN: It is preferable that the said elastic body is comprised with rubber | gum or sponge raw material. The rubber is more preferably silicone rubber, and the sponge material is more preferably urethane sponge.

  If it does in this way, moderate elasticity will be given to an edge part protection member, and it will become possible to secure good buffer nature which protects the termination part of a glass film from external inputs, such as vibration. Moreover, when adopting the configuration for opening and closing the slit portion as described above, since the material has an appropriate hardness, the opening and closing operation can be realized satisfactorily.

  In order to solve the above-mentioned problems, the present invention provides a glass film package in which a long glass film is wound and accommodated on a reel core having a pair of flanges facing each other at intervals. And the terminal part of the said glass film is characterized by protecting with the edge part protection member suitably provided with said structure.

  If it does in this way, it will become possible to enjoy the effect by the end part protection member already described.

  Said structure WHEREIN: It is preferable that the said edge part protection member is press-fitted and hold | maintained between the said pair of flanges using the elasticity of the said elastic body.

  In this way, since the end protection member is press-fitted and held between the flanges, it is possible to prevent the end protection member from protruding outward of the flange. Therefore, when the plurality of glass film packages are stacked and stored, the end protection member does not get in the way, so that the storage efficiency of the glass film package can be maintained well.

  In the above configuration, the terminal portion of the glass film wound around the core is separated from the orbit following the outer peripheral surface of the core, and from the glass film wound on the orbit It is preferable to protect with the said edge part protection member arrange | positioned in the spaced position.

  The glass film wound on the circular track following the outer peripheral surface of the core is pulled out from the reel and cut when used, and is rewound onto the reel after completion of use. When the drawing operation and the rewinding operation are repeated in this manner, the glass film is easily loosened in the winding direction, and an unintended gap can be formed between the glass films. For this reason, when the end protection member is brought into contact with the glass film and pressed in such a state, the glass film may be deformed unreasonably by bending or twisting due to the influence of the gap, and the glass film may be easily damaged. Therefore, as in the above configuration, the end protection member is disposed at a position separated from the glass film wound on the circular track following the outer peripheral surface of the core, and is wound. It is preferable that an unreasonable pressing force does not act on the surface.

  As described above, according to the present invention, the terminal portion including the terminal edge of the glass film is not included in the slit portion provided in the end protection member formed of an elastic body and exposed to the outside. Since the holding state is maintained using elasticity, the end edge of the glass film can be reliably protected and the workability required for the protection can be maintained well.

It is a schematic perspective view which shows the whole structure of the glass film package which concerns on 1st Embodiment of this invention. (A) is a side view which shows the edge part protection member of a glass film, (b) is a side view which shows the state which sets a glass film to this edge part protection member. It is sectional drawing which follows the core axis direction of the glass film package which concerns on this embodiment. It is sectional drawing orthogonal to the core axis direction of the glass film package which concerns on this embodiment. (A) is a side view which shows the edge part protection member of the glass film used for the glass film package which concerns on 2nd Embodiment of this invention, (b) is a front view of the edge part protection member, (c). These are front views which show the state which sets a glass film to the edge part protection member. (A) is sectional drawing which follows the core axial direction of the glass film package which concerns on 3rd Embodiment of this invention, (b) is sectional drawing orthogonal to the core axial direction.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a schematic perspective view showing the glass film package according to the first embodiment of the present invention. As shown in the figure, this glass film package 1 is obtained by packing a glass film G having a thickness of 50 μm or less and a width of 5 mm or less using a reel 2. In addition, this glass film G is utilized for the sealing material, a spacer, the board | substrate for electronic components, etc., for example.

  The reel 2 includes a pair of flanges 3 and 4 that are opposed to each other at an interval, and a winding core 5 that connects the flanges 3 and 4. A glass film G is wound around the winding core 5 in a roll shape. Turned and housed. At this time, since the end edge of the glass film G located on the outermost diameter side is a portion that is easily damaged, the end portion of the glass film G including the end edge is protected by the end protection member 6. .

  As shown in FIGS. 2A and 2B, the end protection member 6 is formed of an elastic body having a substantially rectangular parallelepiped shape as a whole, and traverses the entire width from the front end portion to the substantially central portion. In this way, the slit portion 61 is formed, and a region divided vertically with the slit portion 61 as a boundary is a grip piece 62 that grips the end portion of the glass film G. Note that, as shown in FIG. 3, the width of the end protection member 6 is larger than the width of the glass film G.

  Then, as shown in FIG. 2B, the end protection member 6 is elastically deformed when the front and back surfaces on the base end side are sandwiched and pressed from both the upper and lower sides perpendicular to the plane along the slit portion 61 by fingers. Accordingly, the pair of gripping pieces 62 are separated from each other up and down, and the slit portion 61 is expanded, so that the end portion of the glass film G can be inserted into the slit portion 61. At this time, since the slit portion 61 does not penetrate in the insertion direction of the glass film G, only the front end side of the slit portion 61 opened to the outside is expanded, and the slit is closed by the flesh portion of the elastic body. The proximal end side of the part 61 is kept closed. That is, the closed base end side of the slit portion 61 functions as a stopper that prevents the end edge of the glass film G from being exposed to the outside in the insertion direction.

  On the other hand, when the end protection member 6 releases the pressing force applied to the end protection member 6, the pair of gripping pieces 62 approach again by the elastic restoring force, and the slit portion 61 is closed. Therefore, if the pressing force applied to the end protection member 6 is released in a state where the end portion of the glass film G is inserted into the widened slit portion 61, the end of the glass film G is detected by the pair of gripping pieces 62. The portion is held by the slit portion 61 in a state where the portion is sandwiched. At this time, the end edge of the glass film G is completely contained in the slit portion 61 without being exposed to the outside.

  The elastic body forming the end protection member 6 is preferably a rubber or sponge material, and more preferably a material having high elasticity and high resilience such as silicon rubber or urethane sponge. Specifically, the elastic body preferably has a compressive residual strain of 4% or less, an elongation of 80% or more, a tensile strength of 70 kPa or more, and a hardness of 60 to 120N.

  As shown in FIG. 3, the end protection member 6 configured as described above is press-fitted between the flanges 3 and 4 of the reel 2 while holding the terminal portion of the glass film G. When press-fitted in this way, the end protection member 6 formed of an elastic body is pressed by the flanges 3 and 4 to be temporarily compressed and deformed, and then is expanded and deformed by an elastic restoring force. It is held between the flanges 3 and 4. In this way, since the end protection member 6 is press-fitted and held between the flanges 3 and 4, it is possible to prevent the end protection member 6 from protruding outward of the flanges 3 and 4. . Therefore, when the plurality of glass film packages 1 are stacked and stored, the end protection member 6 does not get in the way, so that the storage efficiency of the glass film package 1 can be maintained well. In this case, the elasticity of the end protection member 6 used when holding the terminal portion of the glass film G can be used as it is for positioning and holding the end protection member 6 with respect to the flanges 3 and 4. This is convenient.

  Further, the end protection member 6 press-fitted and held between the flanges 3 and 4 as described above is a glass wound on a circular track along the outer peripheral surface of the core 5 of the reel 2, as shown in FIG. It is arranged at a position separated from the film G. Specifically, the end portion of the glass film G is detached from the circumferential track along the outer peripheral surface of the core 5 of the reel 2 to the outer diameter side, and the detached end portion is held by the end protection member 6. Yes. This is due to the following reason.

  That is, the glass film G wound on the circular track following the outer peripheral surface of the core 5 is pulled out from the reel 2 and cut in use, and the remaining portion is rewound onto the reel 2 after the cutting is completed. However, when the drawing operation and the rewinding operation are repeated in this manner, the glass film is easily loosened in the winding direction, and an unintended gap can be formed between the glass films. And when the edge part protection member 6 is made to contact and press the glass film G in such a state, unfavorable deformation | transformation, such as an unsuitable bending and a twist, will arise in the glass film G by the influence of a clearance gap, and the glass film G will be easy. Can be damaged. Therefore, the end protection member 6 is disposed at a position separated from the glass film G wound on the circular track following the outer peripheral surface of the core 5, and is improperly pressed against the glass film G being wound. It is preferable to prevent pressure from acting.

  Although the configuration of the reel 2 is not particularly limited, in this embodiment, as shown in FIG. 1, a core 5 is integrally provided at the center of one flange 3, and the core 5 is The other flange 4 is inserted into a through hole 41 provided at the center.

  Further, as shown in FIG. 4, a ring member 7 is extrapolated to the outer peripheral surface of the core 5 between the flanges 3 and 4, and the glass film G is attached to the core 5 via the ring member 7. It is wound around. The glass film G may be wound directly on the outer peripheral surface of the core 5.

  The cross-sectional shape of the outer peripheral surface of the winding core 5 is non-circular, and the cross-sectional contour lines of the formation surface of the through hole 41 of the other flange 4 and the inner peripheral surface of the ring member 7 that engage with the outer peripheral surface of the winding core 5. Are non-circular shapes corresponding to the cross-sectional contour lines of the outer peripheral surface of the core 5. By rotating the ring member 7 and the other flange 4 relative to the core 5, the outer peripheral surface of the core 5 is engaged with the inner peripheral surface of the ring member 7 and the formation surface of the through hole 41 of the flange 4. A ring member 7 and the other flange 4 are fixed to a core 5 provided integrally with one flange 3.

  According to the glass film package 1 according to the first embodiment as described above, the terminal part including the terminal edge of the glass film G is protected in a state of being included in the slit part 61 provided in the end part protection member 6. Therefore, the end edge of the glass film G that is likely to be damaged is completely covered by the slit portion 61 of the end protection member 6. And since this edge part protection member 6 is formed with the elastic body, the termination | terminus part containing the termination | terminus edge of the glass film G is protected by moderate elasticity. Therefore, it is possible to reliably prevent the glass film G from being damaged starting from the terminal edge of the glass film G.

  Moreover, the slit part 61 of the edge part protection member 6 expands only by pressing the base end part side from the upper and lower sides with fingers or the like, and is automatically closed when the pressing force is released. Therefore, since the termination | terminus part of the glass film G can be hold | maintained and the cancellation | release can be performed very easily, in order to protect the termination | terminus part of the glass film G, a troublesome and complicated operation | work is not forced.

  FIGS. 5A to 5C are views showing the main part of the glass film package according to the second embodiment of the present invention. As shown to the figure (a)-(c), the place from which the glass film package 1 which concerns on 2nd Embodiment differs from the glass film package 1 concerning 1st Embodiment is the termination | terminus part of glass film G It is in the structure of the edge part protection member 6 which protects.

  That is, as shown in FIGS. 4A and 4B, the end portion protection member 6 is formed with a slit portion 61 so as to cross from the front end portion to the base end portion at an interval of less than the full width. A region that is vertically divided with the portion 61 as a boundary is a grip piece 62 that grips the end portion of the glass film G. In other words, both end portions in the width direction of the slit portion 61 are not open to the outside and are closed by the flesh portion of the elastic body. In addition, the slit part 6 may not be penetrated in the insertion direction of the glass film G, but may be formed so that it may cross from the front-end | tip part of the edge part protection member 6 to an intermediate part with less than full width.

  And as shown to the figure (c), the edge part protection member 6 will be accompanied by an elastic deformation, if both the outer side surfaces located in the width direction both ends of the slit part 61 are pinched | interposed with fingers etc. from both right and left sides, and pressed. Thus, the pair of gripping pieces 62 are separated from each other up and down and the slit portion 61 opens while expanding, and the end portion of the glass film G can be inserted into the slit portion 61. On the other hand, when the end protection member 6 releases the pressing force applied to the end protection member 6, the pair of gripping pieces 62 approach again by the elastic restoring force, and the slit portion 61 is closed and the opening is opened. The terminal portion of the glass film G inserted into the slit portion 61 in the state is held in the slit portion 61.

  In this case, the width of the slit portion 61 is such that both end surfaces of the glass film G in the width direction do not interfere with the slit portion 61 when being inserted into the open slit portion 61. It is preferable to ensure the width.

  6 (a) and 6 (b) are cross-sectional views showing the main parts of a glass film package according to the third embodiment of the present invention. As shown in the figure, the glass film packaging body 1 according to the third embodiment differs from the glass film packaging body 1 according to the first and second embodiments in that the end portion for protecting the glass film G is protected. The point protection member 6 is held at the outer peripheral edge of the flanges 3 and 4. That is, the end protection member 6 used in the glass film package 1 according to the second embodiment has two fitting grooves 63 formed in parallel at the bottom, and corresponds to each fitting groove 63. By inserting and fitting the outer peripheral edges of the flanges 3 and 4, the outer peripheral edges of the flanges 3 and 4 are held.

  In addition, the point which encloses and protects the termination | terminus part of the glass film G in the slit part 61, and other points, such as the opening / closing procedure of the slit part 61, are the same as that of the edge part protection member 6 demonstrated in 1st and 2 embodiment. It is. 6 shows the case where the slit portion 61 is formed over the entire width of the end protection member 6 as in the first embodiment, but as described in the second embodiment, the slit portion 61 may be formed to be less than the entire width of the end protection member 6 and the width direction both ends of the slit portion 61 may be closed.

  In addition, this invention is not limited to said embodiment, It can implement with a various form. For example, when the glass film G is wound around the core 5 (or a spacer such as the ring member 7), a protective sheet may be stacked on the glass film G and wound together. In this case, the protective sheet may be adhered to the glass film G with a weak adhesive force that can be easily peeled off from the glass film G.

DESCRIPTION OF SYMBOLS 1 Glass film package 2 Reel 3, 4 Flange 5 Core 6 End part protection member 61 Slit part 62 Holding piece 63 Fitting groove 7 Ring member G Glass film

Claims (6)

An end protection member that protects the end of a long glass film,
Formed with an elastic body having a slit portion wider than the end edge of the glass film, and holding the end portion including the end edge of the glass film without exposing to the outside using the elasticity inside the slit portion An end protection member characterized by being provided.   When the slit portion sandwiches and presses the elastic body, the slit portion expands and the end portion of the glass film can be inserted, and when the pressing force applied to the elastic body is released from the expanded state The end protection member according to claim 1, wherein the end protection member can be gripped by closing again.   The end protection member according to claim 1, wherein the elastic body is made of rubber or a sponge material. A glass film package in which a long glass film is wound in a roll shape and accommodated in a reel core having a pair of flanges facing each other at intervals,
The glass film packaging body characterized by protecting the terminal part of the said glass film with the edge part protection member of any one of Claims 1-3.   5. The glass film package according to claim 4, wherein the end protection member is press-fitted between the pair of flanges using the elasticity of the elastic body.   The terminal portion of the glass film wound around the winding core is separated from the circular orbit following the outer peripheral surface of the winding core and at a position separated from the glass film wound on the circular orbit. The glass film package according to claim 4 or 5, wherein the glass film package is protected by the arranged end protection member.

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