JP5470060B2 - Storage tray - Google Patents

Description

  The present invention relates to a storage tray for storing panel-shaped articles.

  2. Description of the Related Art A storage tray that stores panel-shaped articles in a storage section that is recessed in the outer shape of the panel-shaped articles is known as a storage for thin-plate-shaped panel-shaped articles such as semiconductor wafers and liquid crystal panels. As such a storage tray, for example, a storage tray having a plurality of storage recesses in which a plurality of panel-shaped articles are stacked and stored is known (see, for example, Patent Document 1).

  However, even if the storage tray described in Patent Document 1 can store panel-like articles that can be stacked on each other, components placed on the surface or surface treatment is performed on the surface, and stacking is not possible. It is difficult to store a panel-shaped article.

  Therefore, a storage tray is also known that can store a panel-shaped article by placing the panel-shaped article in a storage section provided in the panel main body and laminating the panel main body on the panel main body. Such a storage tray will be briefly described below with reference to FIGS. 7 is a top view of the conventional storage tray 100, FIG. 8 is a cross-sectional view showing the MM cross section of the storage tray 100 shown in FIG. 7, and FIG. 9 is shown in FIG. It is sectional drawing which shows a NN cross section.

  The storage tray 100 is formed by stacking a plurality of tray bodies 101 that are vacuum-formed with a resin material such as polypropylene. As shown in FIGS. 7 to 9, the tray main body 101 includes a storage portion 102 that is integrally formed with the tray main body 101 and is provided in a plurality of concave shapes. Further, the tray body 101 is formed so as to be able to be stacked with each other, and is provided with a plurality of engaging portions 103 that perform alignment during stacking.

  The accommodating part 102 is a recessed part which is formed in a concave shape by vacuum forming and gradually expands in the upward direction opening from below. The storage part 102 includes a side wall part 105, a support part 106, a bottom part 107, and a finger escape part 108. The side wall part 105 is formed in the inclined surface 105a which inclines so that it may expand gradually toward the upper part from the downward direction, The part is notched and formed.

  The support part 106 is provided below the side wall part 105, and is formed so that a part of outer edge part of the panel-shaped article P can be supported. In addition, the support part 106 is provided in the position where the inner surface of the side wall part 105 and the outer surface of the panel-shaped article P become substantially the same dimension. The bottom surface portion 107 is formed in a shape that allows the bottom surface of the panel-shaped article P supported by the support portion 106 to escape (prevents interference between the bottom surface and the bottom surface portion 107).

  The finger escape portion 108 is formed at the time of vacuum forming into a shape in which a part of the side wall portion 105 and the support portion 106 is cut out, and is a relief that allows the panel-shaped article P to be held and taken out. Further, as shown in FIG. 9, the finger escape portion 108 is formed so as to escape further downward from the bottom surface portion 107 from a part of the bottom surface portion 107.

  The storage tray 100 configured as described above stores the panel-shaped article P in the storage section 102 as shown in FIGS. The side surface of the panel-shaped article P stored in the storage section 102 is supported by the side wall portion 105 of the storage section 102, so that the movement of the panel-shaped article P in the main surface direction is restricted.

  The lower surface of the panel-shaped article P is supported by the support unit 106. The panel-shaped article P is disposed such that the upper surface thereof is separated from the bottom surface portion 107 and the finger escape portion 108 of the stacked tray main body 101. In addition, the upward movement of the panel-shaped article P is regulated by the finger escape portion 108 located above the panel-shaped article P.

  As described above, the panel-shaped article P is stored in the stacked tray main body 101, so that the movement in the main surface direction and the vertical direction is regulated. It is formed so that the movement of the panel-shaped article P can be prevented. That is, the storage tray 100 restricts the movement of the panel-shaped article P stored in the storage section 102, thereby preventing the panel-shaped article P from being damaged during transportation.

  In addition, since the finger tray 108 is provided in the storage tray 100, when the panel-shaped article P is taken out from the storage section 102, the side portion of the panel-shaped article P is sandwiched from the finger escape section 108. Thus, the panel-shaped article P can be taken out. Thus, the panel-like article P can be easily taken out (extracted) from the storage portion 102, and the workability is good.

JP 2006-347570 A

  The storage tray described above has the following problems. That is, when the storage tray 100 described above receives an impact due to a drop or the like during conveyance, the upper surface of the panel-shaped article P is pressed by the finger escape portion 108 due to the impact of the tray main body 101 due to the impact.

  That is, during normal conveyance, the upward movement of the panel-shaped article P is restricted by the lower surface of the finger escape portion 108, but when the impact is applied, the panel-like article P is pressed by the finger escape portion 108. . Further, the portion of the storage portion 102 where the finger escape portion 108 is formed is in a state where a part of the support portion 106 is notched by the finger escape portion 108 and faces the finger escape portion 108 of the panel-shaped article P. The part to be supported is not supported by the support unit 106.

  When the upper surface of the panel-shaped article P that is not supported by the support section 106 is pressed by the finger escape section 108, shear stress is applied to the panel-shaped article P, and the panel-shaped article P may be damaged. For this reason, there is a demand for a storage tray that can prevent the panel-like article P from being damaged even when an impact is applied due to dropping of the storage tray during transportation.

  In addition, although the structure which does not provide the finger escape part 108 mentioned above is also considered, when it does not have a finger escape part, taking out of a panel-shaped article from a storage part is difficult, and workability | operativity falls. Further, if the finger escape portion 108 is not provided and the upward movement of the panel-shaped article P is regulated by the bottom face portion 107, the upward movement of the panel-shaped article P is performed on the main surface of the panel-shaped article P. There will be a risk of damaging the main surface of the panel-shaped article P or a component provided on the main surface.

  Accordingly, an object of the present invention is to provide a storage tray that can prevent the panel-shaped article from being damaged and can easily take out the stored panel-shaped article.

  In order to solve the problems and achieve the object, the storage tray of the present invention is configured as follows.

  As one aspect of the present invention, a storage tray for storing a panel-shaped article, which is formed of a resin material and can be stacked on each other, and is integrally molded on the tray body, and the side of the panel-shaped article A side wall portion that abuts and restricts movement of the panel-shaped article in the principal surface direction; and a storage section that is provided in the side wall portion and includes a support portion that supports an outer edge portion of the lower surface of the panel-shaped article; A protrusion that is formed integrally with the tray main body adjacent to the storage portion, and that is located below the support portion formed on the side and bottom ridges adjacent to the support portion; There is provided a storage tray comprising a relief portion facing a support portion of another tray body to be stacked.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the storage tray which can take out the panel-shaped article accommodated in a storage part easily, and can prevent the failure | damage of the stored panel-shaped article.

The top view which shows the structure of the storage tray which concerns on one embodiment of this invention. Sectional drawing which shows the principal part structure of the storage tray. Sectional drawing which shows the principal part structure of the storage tray. The top view which expands and shows the principal part structure of the storage tray. The top view which expands and shows the principal part structure of the storage tray which concerns on the modification of this invention. Sectional drawing which expands and shows the principal part structure of the storage tray which concerns on the modification of this invention. The top view which shows the structure of the storage tray of a prior art. Sectional drawing which shows the principal part structure of the storage tray. Sectional drawing which shows the principal part structure of the storage tray.

Hereinafter, the storage tray 1 which concerns on one embodiment of this invention is demonstrated using FIGS.
FIG. 1 is a top view showing a configuration of a storage tray 1 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view schematically showing a main part configuration of the storage tray 1 from an arrow A to an AA cross section, FIG. 3 is a cross-sectional view schematically showing the main part configuration of the storage tray 1 from a cross-section B to B-B. FIG. 4 is an enlarged view of the storage part 12 and the finger escape part (escape part) 13 of the storage tray 1. FIG. 1 and 4 are top views as viewed from the upper surface of the storage tray 100. The upper side in FIGS. 2 and 3 will be described below as the upper surface side of the storage tray 1 and the lower side as the lower surface side of the storage tray 1. .

  The storage tray 1 has a plurality of tray bodies 11 and is formed by stacking a plurality of these tray bodies 11. The storage tray 1 is formed so that a plurality of panels P can be stored one by one. The storage tray 1 is a transport member that transports the stored panel P. The panel P is a thin plate-like panel-like article such as a semiconductor wafer or a liquid crystal panel.

  The tray body 11 is relatively soft, such as polypropylene, and is vacuum-formed with a resin material having an elastic force that can be elastically deformed with a predetermined force. The elastic force that is elastically deformed with a predetermined force is a level that can support the panel P and maintain the shape of the tray main body 11, and breaks the panel P when an external force is applied to the panel P. It is only necessary to be elastically deformed so that details thereof are omitted.

  As shown in FIGS. 1 to 4, the tray main body 11 includes a plurality of storage portions 12 provided in a concave shape on the tray main body 11, and finger escape portions 13 provided on a pair of side portions of the storage portion 12. I have. The tray main body 11 includes a plurality of concave portions that align during stacking and an engaging portion 14 that aligns convex portions. The engaging portion 14 is a so-called stacking portion. If the tray main body 11 to be stacked can be aligned in the main surface direction by stacking, the number and shape of the engaging portion 14 can be appropriately set. Is possible.

  The tray body 11 is molded by the storage portion 12, the finger escape portion 13 and the engaging portion 14 being sucked into a cavity formed with a polypropylene sheet in a mold by, for example, a vacuum forming method. In that case, each shape of the tray main body 11 is formed by appropriately adjusting molding conditions such as heating time and temperature.

  The storage portion 12 is a concave portion formed in a concave shape that opens on the upper surface of the tray main body 11 by vacuum forming, and is arranged in a matrix on the tray main body 11. The storage portion 12 is formed so as to gradually expand from the bottom toward the top opening. The storage portion 12 includes a side wall portion 15, a support portion 16, and a bottom surface portion 17.

  In the tray main body 11 illustrated in FIG. 1, for example, the storage unit 12 is described as being arranged in 2 rows and 5 columns. However, the arrangement of the storage unit 12 is not limited to the size of the tray main body 11 or the like. It can be set as appropriate depending on the shape of the panel P to be stored.

  The side wall portion 15 is a peripheral wall of the storage portion 12 formed so as to be capable of restricting movement in the main surface direction of the panel P by contacting the side portion of the panel P with the inner surface thereof. The side wall 15 is formed of an inclined surface 15a that is inclined so as to gradually widen from the lower side toward the upper side.

  The side wall portion 15 is formed by partially notching a pair of opposing side portions. Specifically, the side wall portion 15 has a cutout portion 15 b in which a portion that is a long side of the storage portion 12 is cut out to the same level as the upper surface of the support portion 16. Moreover, the side wall part 15 has the corner | angular relief part 15c which avoids interference with the corner | angular part of the panel P formed in the ridge part (corner part).

  Further, for example, as shown in FIG. 1, the side wall portion 15 is formed with the inclined surface 15 a and the notch portions 15 b of the plurality of storage portions 12 by forming the inclined surface 15 a and the notch portions 15 b continuously and integrally. To do.

  The support portion 16 is formed to be able to support the side edge portion of the panel P. Specifically, the support portion 16 is a frame-shaped surface portion that is provided between the side wall portion 15 and the bottom surface portion 17 and extends along the outer periphery of the panel P. The support portion 16 is provided at a position where the inner surface of the side wall portion 15 and the outer surface of the panel P have substantially the same dimensions.

  The bottom surface portion 17 forms the bottom surface of the storage portion 12 that is separated from the support portion 16 by a predetermined distance. The bottom surface portion 17 escapes from the lower surface of the panel P supported by the support portion 16, that is, from the upper surface of the support portion 16 so as not to interfere with the lower surface of the panel P or components provided on the lower surface of the panel P. A space is formed at a predetermined distance from the bottom surface.

  The finger escape portion 18 is a concave portion formed in a concave shape that opens on the upper surface of the tray main body 11 by vacuum forming, and is provided adjacent to a pair of side portions of the storage portion 12. In the tray main body 11 shown in FIG. 1, the finger escape portions 18 are arranged alternately with the storage portions 12. As shown in FIG. 1, the finger escape portions 18 may be provided with a common finger escape portion 13 between adjacent storage portions 12, or may be provided as a pair with respect to the storage portion 12. Good.

  The finger escape portion 13 has a bottom area larger than the opening area of the upper surface of the tray body 11. Specifically, as shown in FIG. 3, the finger escape portion 13 is formed by the inner side surface adjacent to the storage portion 12 being continuous by an inclined surface that is inclined outward from the upper side to the lower side. Yes. Thereby, the finger escape portion 13 is formed with a protrusion 21 in which a part of the bottom surface portion is located below the support portion 16.

  In addition, the finger escape part 13 is formed in a concave shape in which, for example, at the time of vacuum forming, the upper part thereof is wider than the lower part, and thereafter, the support part 16 of the finger escape part 13 is positioned below the support part 16. A protrusion 21 is formed on a ridge (corner) between the inner side surface and the bottom surface adjacent to each other. For this reason, the thickness of the protrusion 21 is formed slightly thinner than the thickness of the other part of the tray main body 11. Note that the protrusion 21 may be formed by a method other than this forming method.

  As shown by a broken line in FIG. 4, the protrusion 21 is an undercut located below the support portion 16 that cannot be seen from the upper surface side of the tray body 11. Further, the protrusion 21 is formed only at a corner portion located below the support portion 16 of the finger escape portion 13.

  The protruding portion 21 is formed in a straight line along the corner portion (ridge portion) located below the support portion 16. Therefore, in the finger escape portion 13 on the right side in FIG. 3, the protrusion 21 is formed only on one side portion located below the support portion 16 of the adjacent one storage portion 12. Further, in the finger escape portion 13 on the left side in FIG. 3, the protrusions 21 are respectively provided below the support portions 16 of the two adjacent storage portions 12, so that they protrude from both side portions located below the support portion 16. A portion 21 is formed.

  As shown in FIG. 3, the lower surface of the protrusion 21 is formed to be able to face the support portion 16 when the tray main body 11 is stacked. Thereby, the protrusion 21 is formed to be able to face a part of the side edge portion of the upper surface of the panel P supported by the support portion 16. In addition, when the tray main body 11 is laminated | stacked, the protrusion 21 is formed in the shape in which the lower surface of the protrusion 21 and the side edge part of the panel P leave | separate with a micro clearance gap.

  That is, when the panel P accommodated in the accommodating part 12 moves upward, the protrusion 21 is formed by the lower surface thereof so that the panel P can be prevented from moving upward.

  In the storage tray 1 configured as described above, the panel P is disposed in the storage unit 12 and the tray main body 11 is stacked, so that the panel P can be stored in the storage tray 1. Hereinafter, storage of the panel P in the storage tray 1 will be described.

  First, the panel P stored in the storage tray 1 is inserted into the side wall portion 15 of the storage portion 12 and placed on the support portion 16, and the panel P is supported by the support portion 16. At this time, since the side wall portion 15 is an inclined surface inclined toward the inner surface side, the panel P is guided by the side wall portion 15 to move to the support portion 16 and is supported by the support portion 16.

  Next, in a state where the panel P is supported by the support portion 16, another tray main body 11 is arranged on the tray main body 11, the tray main body 11 is positioned by the plurality of engaging portions 14, and the tray main bodies 11 are connected to each other. Laminate.

  The side of the panel P is regulated by the side wall 15, and the outer edge of the lower surface is supported by the support 16. In addition, the outer edge portion of the upper surface of the panel P is accommodated in the accommodating portion 12 in the vicinity of the lower surface of the protruding portion 21.

  As a result, the movement of the panel P in the main surface direction is regulated by the side wall portion 15, and the movement in the vertical direction is regulated by the support portion 16 and the protruding portion 21, thereby following the vibration during conveyance. The panel P can be prevented from vibrating.

  When the storage tray 1 is transported, for example, when an impact is applied by dropping the storage tray 1 or the like, the upper surface of the panel P is restricted by the protrusion 21 and the protrusion The downward pressing by 21 is supported by the support portion 16. That is, since the panel P is supported by the support portion 16 even when the projection 21 is pressed, the panel P is not subjected to excessive shearing stress and can prevent the panel P from being damaged. it can.

  Next, a case where the panel P stored in the storage tray 1 is taken out from the storage unit 12 will be described. First, the stacked upper tray body 11 is detached from the lower tray body 11. Next, a gripping means such as an arm for taking out the finger or the panel P is inserted into the finger escape portion 13, and in this state, the panel P is brought close to the finger escape portion 13.

  Since the tray main body 11 has elasticity, the tray main body 11 is pressed by pressing the boundary between the support portion 16 and the finger escape portion 13 so as to grip the panel P from the finger escape portion 13. Part, that is, the periphery of the boundary between the support part 16 and the finger escape part 13 is elastically deformed, and the side part of the panel P can be pinched (picked). Thus, the panel P can be detached from the storage unit 12 by holding the panel P and lifting it upward.

  According to the storage tray 1 configured as described above, the movement of the panel P in the main surface direction and the vertical direction is restricted by the side wall portion 15, the support portion 16, and the protrusion 21. It becomes possible to prevent damage.

  In addition, even when the storage tray 1 is dropped, the panel P is sandwiched in the vertical direction by the support portion 16 and the protrusion 21, and an excessive shear stress can be prevented from being applied to the panel P. Further, since the tray main body 11 that regulates the panel P has elasticity, the support 16 and the protrusion 21 absorb or disperse the impact of dropping, the compressive stress between the panel P and the tray main body 11, and the like. Therefore, it is possible to prevent the panel P from being applied with an excessive stress such as a compressive stress. That is, it is possible to reduce the stress applied to the panel P as much as possible and prevent the panel P from being damaged as much as possible. As described above, the storage tray 1 can be prevented from being damaged when the panel P is conveyed.

  Furthermore, even if the panel P is provided with semiconductor elements, printed wiring, and the like, the bottom surface portion 17 and the support portion 16 of the tray main body 11 on which the panel P is provided, and the bottom surface portion 17 of the placed tray main body 11. A predetermined distance is provided between each of the lower surface and the support portion 16. For this reason, spaces for preventing interference with components are formed above and below the panel P.

  This space prevents the components provided on the surface of the panel P from interfering with the tray body 11 and prevents the components provided on the panel P from being damaged. In addition, since the panel P is only supported by the support part 16 and the protrusion 21 in the up-and-down direction, the outer edge part is supported by the support part 16 and the protrusion 21 on the surface of the panel P. There is no interference.

  At least a part of the protrusion 21 is formed thinner than the other part of the finger escape part 13. That is, the protrusion 21 is an undercut, and in vacuum forming, the finger escape portion 13 other than the protrusion 21 is formed and the protrusion 21 is further formed. Therefore, the thickness (thickness) of the protrusion 21 is It is formed in a shape that is relatively thinner than the thickness of the other part of the finger escape portion 13. For this reason, the elastic force of the protrusion 21 is lower than the elastic force of the tray body 11 other than the protrusion 21.

  Thus, the protrusion 21 can absorb or disperse stress or the like more by forming the thickness of at least a part of the thin portion, and can prevent the panel P from being damaged as much as possible. Thus, the protrusion 21 can obtain a more suitable elastic force as a restricting portion that restricts the vertical movement of the panel P by the molding method.

  As described above, according to the storage tray 1 according to the present embodiment, the movement of the panel P stored in the storage unit 12 is restricted in the main surface direction and the vertical direction, thereby preventing breakage during transportation. Is possible. Moreover, even if an impact is applied to the storage tray 1 by the protrusions 21, it is possible to prevent the application of excessive stress to the panel P and to prevent the panel P from being damaged, thereby improving the reliability of the storage tray 1. Is possible.

  The present invention is not limited to the above embodiment. In the above-described example, the thickness of a part of the protrusion 21 is described as being thinner than the thickness of the other part of the finger escape portion 13, but is not limited thereto. For example, the thickness of the finger escape portion 13 including the protrusion 21 may be uniform, and the thickness of the finger escape portion 13 may be thinner than the thickness of the other tray body 11. That is, it is only necessary that a suitable elastic force can be obtained when the vertical movement of the panel P is restricted. Specifically, the protrusion 21 may have a shape that is thinner than the support portion 16 having a thickness capable of supporting the panel P, for example.

  Further, the thickness of the protrusion 21 may be the same as the thickness of the other tray body 11. That is, even when the thickness of the protrusion 21 is the same as the thickness of the other tray body 11, the effect that stress is applied to the panel P can be obtained by the configuration in which the protrusion 21 faces the support portion 16. Therefore, the above-described effects other than the effect of making the protrusion 21 thin are naturally obtained. Thus, even if the thickness of the protrusion 21 is the same as the thickness of the tray body 11 other than the protrusion 21, it has an effect of preventing the panel P from being damaged as compared with the conventional storage tray. Needless to say.

  Further, the above-described finger escape portion 13 may have another shape configuration. Hereinafter, modified examples of the finger escape portion 13 of the storage tray 1 will be described with reference to FIGS. 5 and 6. 5 and 6, the same components as those in FIGS. 1 to 4 are denoted by the same reference numerals, and the description thereof is omitted.

  For example, in the above-described example, the protrusion 21 is formed in a linear shape on the ridge portion of the finger escape portion 13, but is not limited thereto. For example, like the finger escape portion 13A shown on the left side of FIG. 5, a plurality of curved protrusions 21A may be formed on the ridge portion of the finger escape portion 13A.

  In the above-described example, one finger escape portion 13 is formed on one side surface of the support portion 16. However, the present invention is not limited to this. For example, a plurality of notch portions 15b may be formed, for example, like a finger escape portion 13B shown on the right side of FIG. The finger escape portion 13B only needs to pick the panel P when the panel P is taken out, and the dimension shape of the finger escape portion 13B is not limited as long as a finger or a holding means can be inserted.

  Moreover, in the example mentioned above, although the figure which formed the protrusion 21 in FIG.2, 3 substantially parallel to the surface direction of the support part 16 is shown, it is not limited to this. For example, the shape which has the inclination part 51 which inclines a little around the edge part like the protrusion 21C shown to the upper side of FIG. 6 may be sufficient.

  The protrusion 21 </ b> C having the inclined portion 51 can reduce the surface in contact with the panel P as much as possible. Further, for example, an inclination may be provided according to the outer edge shape of the panel P. For example, when the outer edge of the panel P is chamfered, the inclined portion 51 may be parallel to the inclination of the chamfered portion. As described above, by providing the inclined portion 51, when the panel P is regulated, an effect that makes it possible to prevent an excessive pressure from being applied to the panel P according to the shape of the panel P, and the contact area are reduced. The effect to reduce can be acquired.

  Moreover, the structure which forms R part (curved chamfering part) 52 in the front-end | tip of the protrusion 21D like the protrusion 21D shown in the lower side of FIG. 6 may be sufficient. By forming the R portion 52 at the tip of the projection 21D, it is possible to prevent the panel P top surface from being damaged, the occurrence of dents at the time of contact, and the like when the tip contacts the top surface of the panel P. In addition, various modifications can be made without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Storage tray, 11 ... Tray main body, 12 ... Storage part, 13 ... Finger escape part (escape part), 14 ... Engagement part, 15 ... Side wall part, 15a ... Inclined surface, 15b ... Notch part, 15c ... Square relief , 16 ... support part, 17 ... bottom face part, 21 ... protrusion, 100 ... storage tray, 101 ... tray body, 102 ... storage part, 103 ... engagement part, 105 ... side wall part, 105a ... inclined surface, 106 ... Support part 107 ... bottom face part 108 ... finger escape part P ... panel-shaped article (panel).

Claims (2)

A storage tray for storing panel-shaped articles,
A tray body molded from a resin material and stackable with each other;
A side wall portion that is integrally formed with the tray body, abuts against a side portion of the panel-like article, and restricts movement of the panel-like article in a main surface direction, and is provided in the side wall portion. A storage portion having a support portion for supporting the outer edge portion of the lower surface;
The tray main body has a protrusion that is formed integrally with the tray main body adjacent to the storage section, and that is located below the support section formed on the side and bottom ridges adjacent to the support section. A relief portion in which the protruding portion faces the support portion of the other tray body at the time of stacking,
A storage tray comprising:   The escape portion is characterized in that at least a part of the protrusion facing the support portion when the tray main body is stacked is formed to be thinner than the other portion of the escape portion or the support portion. The storage tray according to claim 1.

Images