JP4616086B2 - Panel-shaped article storage tray - Google Patents

Description

  The present invention relates to a storage tray used for storing panel-shaped articles handled in an assembly process or the like.

  For example, in a mobile phone assembly process, there is a process of incorporating a liquid crystal display panel, which is a panel-like article, into the main body of the telephone. Since the liquid crystal display panel may be easily scratched on the glass surface, attention is required for handling, and the liquid crystal display panel is usually stored and handled in a storage recess formed in a storage tray.

  The storage tray has a tray body that is vacuum-formed with a synthetic resin such as polypropylene. In the tray body, storage recesses for storing the plurality of liquid crystal display panels are formed in a matrix.

  When vacuum forming a tray body having a storage recess for storing the liquid crystal display panel, the inner surface of the storage recess is outwardly formed so that the tray body can be easily released from the mold after molding. It was formed in the taper surface inclined toward.

  When the inner surface of the housing recess is formed into a tapered surface, the outer diameter of the liquid crystal display panel becomes larger as the inner diameter of the housing recess goes upward. For this reason, when a plurality of liquid crystal display panels are stacked and stored in the storage recess, the liquid crystal display panel easily moves in the storage recess, and the upper and lower liquid crystal display panels may rub against each other and be damaged. .

  Thus, conventionally, the storage recesses formed in the tray body have a depth that allows one liquid crystal display panel to be stored, and the liquid crystal display panels are stored one by one in each storage recess.

  However, if only one liquid crystal display panel is stored in one storage recess, the number of liquid crystal display panels that can be stored in one storage tray cannot be increased. For this reason, for example, in the assembly process, the number of storage trays to be handled becomes very large, so that it takes a lot of time to handle the storage trays, and this has an effect on improving work efficiency.

  An object of the present invention is to provide a storage tray for panel-shaped articles that can be stacked and stored without deviating movement of a plurality of panel-shaped articles without impairing the releasability of the tray body that is vacuum-formed.

This invention is a storage tray for storing panel-shaped articles,
A tray body molded of synthetic resin;
The planar shape is a quadrangle and is formed by opening on the upper surface of the tray body, and the inner surface is formed in a tapered surface inclined outward from the lower end in the depth direction toward the upper end, and a plurality of the panel-shaped articles are formed inside. A plurality of storage recesses that are stacked and stored in the vertical direction so that their surfaces come into contact with each other ;
The panel-shaped article is horizontally displaced within the storage recess by supporting the outer peripheral surface of the panel-shaped article that is formed perpendicular to a part of the inner surface of the storage recess and is stacked in the storage recess in the vertical direction. A panel-shaped article storage tray comprising a vertical support portion for preventing movement.

  It is preferable that the vertical support portion is formed on the inner surfaces of at least a pair of opposing side walls among the four side walls of the storage recess.

  It is preferable that the tray body is formed to be curved in a convex shape toward the upper side, and is elastically deformed flatly by the weight of the panel-shaped article stored in each storage recess.

  It is preferable that the wall part which separated the adjacent storage recessed part is formed with the groove part which can clamp the width direction both ends of the panel-shaped article accommodated in each storage recessed part with fingers.

  On the lower surface of the tray body, there is formed a holding portion for restricting the panel-like article stacked and stored in the storage recess of the lower tray body when the plurality of tray bodies are stacked, from rising from the storage recess. Preferably it is.

  According to the present invention, the inner wall surface of the storage recess is formed into a tapered surface, and the vertical support portion is formed only on a part of the inner wall surface, so that the release property of the vacuum formed tray body is hardly impaired. The tray body can be formed, and the plurality of panel-like articles stacked and stored in the storage recesses by the vertical support portion can be prevented from shifting in the horizontal direction.

  An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of the tray body 1, and FIG. 2 is a side view. The tray body 1 is vacuum-formed with a relatively soft and elastic synthetic resin such as polypropylene. That is, the tray body 1 has an upper wall 2 having a rectangular planar shape, and a peripheral wall 3 is integrally formed on the outer peripheral edge of the upper wall 2 over the entire length. A flange 3a is formed at the lower end of the peripheral wall 3 as shown in FIG. A plurality of storage recesses 4 are formed in two rows on the upper wall 2, in this embodiment, five rows in one row. That is, a total of ten storage recesses 4 are formed in the upper surface of the tray body 1 so as to open.
As shown in FIG. 5, the storage recess 4 is formed to a depth that allows a plurality of liquid crystal display panels P as panel-shaped articles, for example, ten liquid crystal display panels P to be stacked and stored. An arrow 5 (shown in FIG. 1) for indicating the storage direction of the liquid crystal display panel P is formed on the bottom wall 14 of each storage recess 4.

  Each storage recess 4 is formed by sucking a polypropylene sheet into a cavity formed in a mold (both not shown) during vacuum forming. At that time, by adjusting the molding conditions such as the heating time and the heating temperature, the upper wall 2 having the plurality of storage recesses 4 is curved so as to protrude upward toward the center in the longitudinal direction and the width direction of the tray body 1. Can be made. A curve in the longitudinal direction of the tray body 1 is indicated by a chain line S in FIG. Although the width direction is not shown, it is curved in the same manner as the longitudinal direction.

  If the dimension in the longitudinal direction of the tray body 1 is 400 mm and the dimension in the width direction is 200 mm, the upward lifting dimension due to the curvature of the central portion of the upper wall 2 of the tray body 1 shown in FIG. 2 is about 3 to 5 mm. Thus, the conditions at the time of vacuum forming are set. As a result, the upper wall 2 of the tray body 1 that is convexly curved upward can be elastically deformed downward at the center.

  On the peripheral wall 3 of the tray body 1, protrusions 6 that protrude toward the inner surface side of the peripheral wall 3 are formed at predetermined intervals in the circumferential direction. The protrusion 6 is concave when viewed from the outer peripheral surface of the peripheral wall 3, and a stepped portion 7 that is open to the upper surface and the outer peripheral surface is formed adjacent to one side in the width direction of each protrusion 6.

  When a plurality of tray bodies 1 are stacked by rotating the upper tray body 1 180 degrees horizontally with respect to the lower tray body 1, the upper tray body 1 is placed on the stepped portion 7 of the lower tray body 1. The lower end of the protrusion 6 is engaged. Thereby, a plurality of tray main bodies 1 can be stacked at predetermined intervals in the vertical direction so as not to move in the horizontal direction.

  The storage recess 4 formed in the upper wall 2 of the tray main body 1 has a planar shape that is a long and narrow rectangular shape along the width direction of the tray main body 1, and the inner surface thereof is shown in FIGS. Thus, it is formed in the taper surface 11 inclined outward from the lower end toward the upper end. The rectangular shape of the storage recess 4 formed by the tapered surface 11 is set to be slightly larger than the outer shape of the liquid crystal display panel P as a panel-shaped article stored in the storage recess 4.

  A pair of vertical support portions 12 each having a vertical surface 12a are formed along the vertical direction on each tapered surface 11, which is the four side surfaces of the storage recess 4. That is, the vertical support portion 12 is formed so as to protrude into the storage recess 4, and a rectangle formed by connecting these vertical surfaces 12 a is the liquid crystal display panel P indicated by a chain line in FIGS. 3 (a) to 3 (c). It is set to be approximately the same size as the outer shape.

  Accordingly, the liquid crystal display panel P stored in a stacked manner in the storage recess 4 is supported by the four outer peripheral surfaces of the liquid crystal display panel P being in contact with the vertical surface 12 a of the vertical support portion 12. 3B and 3C, the vertical surface 12a is a small portion of the upper end in the height direction, that is, when a predetermined number of liquid crystal display panels P are stacked and stored in the storage recess 4. An upper end portion that is disengaged from the uppermost liquid crystal display panel P is formed in a tapered portion 12b that is inclined outward. Accordingly, the liquid crystal display panel P can be easily put in and out of the storage recess 4.

  As shown in FIGS. 3 (a) and 3 (c), a protrusion 15 projecting in the width direction is formed at one end in the longitudinal direction of the bottom wall 14 of the housing recess 4 along the width direction. A concave line 16 is formed along the width direction as a holding portion that protrudes toward the lower surface side.

  The lowermost liquid crystal display panel P accommodated in the accommodating recess 4 has a lower surface at one end in the longitudinal direction supported by the protrusion 15 and a lower surface at the other end on the bottom wall 14 at the same height as the protrusion 15. It is supported by the support part 17 formed at this time. As shown in FIG. 3A, the support portion 17 is formed over three sides excluding one side of the protrusion 15 side of the bottom wall 14 of the storage recess 4.

When stacking a plurality of the tray main body 1 as shown in FIG. 5, the upper face of the lower of the tray main body 1 of the stacked and stored in the storage recess 4 the uppermost liquid crystal display panel P of the upper tray main body 1 housing recess The bottom surface 16a of the concave strip 16 that protrudes downwardly from the bottom wall 14 of 4 faces each other with a slight gap. Accordingly, the liquid crystal display panel P stacked and stored in the storage recess 4 of the lower tray body 1 is restricted from floating upward.

As shown in FIG. 1, the partition wall 19 of the upper wall 2 that separates the adjacent storage recesses 4 in the longitudinal direction of the tray body 1 communicates with one side in the width direction of the adjacent storage recesses 4. A groove 21 is formed, and a first groove 21 is also formed on the other side of the storage recess 4 located at both ends.

The partition part 20 that separates the adjacent storage recesses 4 in the width direction of the tray body 1 is formed with a second groove part 22 that communicates one side in the longitudinal direction of the adjacent storage recesses 4. The second groove portion 22 is also formed on the other side in the longitudinal direction.

  The lower surfaces of the groove portions 21 and 22 project downward from the bottom wall 14 in the storage recess 4 to serve as holding portions. When the plurality of tray main bodies 1 are stacked as shown in FIG. 21 and the lower surface 21a, 22a of the width direction both ends of the 2nd groove part 22 are opposed to the upper surface of the peripheral part of the uppermost liquid crystal display panel P laminated | stacked on the storage recessed part 4 of the lower tray main body 1 through a slight space | interval. To do. Accordingly, the liquid crystal display panel P stacked and stored in the storage recess 4 is restricted from moving up and down.

Further, a plurality of reinforcing ribs 24 are formed on the upper wall 2 and the side wall 3 of the panel body 1 as shown in FIGS.
2, the floating dimension of the upper wall 2a of the tray body 1 is the height dimension between the lower surface of the second groove 22 at the center of the panel body 1 and the lower end of the peripheral wall 3 of the panel body 1. It is equal to the difference. Accordingly, the upper wall 2a can be elastically deformed downward by the dimension h.

  According to the storage tray configured as described above, the inner surface of the storage recess 4 is the tapered surface 11, and the vertical support portion 12 having the vertical surface 12 a is formed on a part of the tapered surface 11. Therefore, when the vacuum-formed tray body 1 is released from the mold, the vertical surface 12a serving as a resistance at the time of release is slightly smaller than the entire inner peripheral surface of the storage recess 4, so The mold release can be performed relatively easily and without deforming the molded tray body 1.

  Moreover, the first and second groove portions 21 and 22 are formed in the partition walls 19 and 20 in which the storage recesses 4 are formed. For this reason, the area of the inner surface of the storage recess 4 can be reduced by the grooves 21 and 22, so that the vacuum-formed tray body 1 can be easily released.

  Since the vertical support portion 12 having the vertical surface 12a is formed in the storage recess 4, the outer peripheral surface of the liquid crystal display panel P stacked and stored in the storage recess 4 is reliably supported by the vertical surface 12a. Therefore, the liquid crystal display panels P stacked and stored in the storage recesses 4 do not move in the horizontal direction in the storage recesses 4 during transportation, so that the overlapping surfaces of the liquid crystal display panels P are prevented from being damaged. The

  The tray body 1 is curved and shaped so that the upper wall 2 is convex upward by adjusting the suction force during vacuum forming. Therefore, when the liquid crystal display panel P is stored in each storage portion 4, the upper wall 2 curved upward due to the weight of the liquid crystal display panel P is elastically deformed so as to become horizontal.

  When the upper wall 2 is deformed in the horizontal direction, the vertical surface 12 a of the vertical support portion 12 provided in each storage recess 4 falls toward the inside of the storage recess 4. Therefore, the outer peripheral surface of the liquid crystal display panel P is more reliably supported by the vertical surface 12a, which also makes it difficult for the liquid crystal display panel P to move in the horizontal direction.

  In the partition portion 19 that separates the storage recesses 4 adjacent to each other in the longitudinal direction of the panel body 1, first groove portions 21 positioned on both sides in the width direction of the storage recesses 4 are formed. For this reason, when the liquid crystal display panel P is inserted into and removed from each storage recess 4, fingers holding both ends in the width direction of the liquid crystal display panel P enter the first and second grooves 21 and 22. The display panel P can be easily taken in and out.

  When the plurality of tray main bodies 1 are stacked, the lower surfaces 21a and 22a of the first and second groove portions 21 and 22 formed on the partition portions 19 and 20 of the upper wall 2 of the tray main body 1 located on the upper side and the concave stripes 16 are formed. The lower surface 16a faces the upper surface of the peripheral portion of the uppermost liquid crystal display panel P stacked and stored in the storage recess 3 of the lower tray body 1 with a slight gap therebetween.

  Therefore, when transporting a plurality of tray main bodies 1 in a stacked state, the liquid crystal display panel P accommodated in the accommodating recess 4 of the lower tray main body 1 moves in the vertical direction by the first and second groove portions 21 and 22. Therefore, it is possible to prevent the liquid crystal display panel P stacked and stored in the storage recess 4 from being damaged.

  In the above embodiment, the two vertical support portions 12 are provided on the inner surfaces of the four side walls of the storage recess 4, respectively, but one vertical support portion 12 may be formed on each of the four inner surfaces. You may make it form the vertical support part 12 only in a pair of opposing side wall inner surface among side walls. In that case, it is preferable to provide two vertical support portions 12 on at least one of the inner surfaces of the pair of opposing side walls so that the liquid crystal display panel P stored in the storage recess 4 does not rotate in the horizontal direction.

The top view which shows the storage tray of one Embodiment of this invention. The side view of the storage tray shown in FIG. The three-plane figure which expands and shows one of the storage recessed parts formed in the storage tray. Sectional drawing which shows the peripheral part of a tray main body. The expanded sectional view which shows a storage recessed part when two storage trays are stacked.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Tray main body, 2 ... Upper wall, 3 ... Perimeter wall, 4 ... Storage recessed part, 11 ... Tapered surface, 12 ... Vertical support part, 12a ... Vertical surface, 15 ... Projection, 16 ... Concave (holding part), 19 20 partition walls 21, 22 groove portions (holding portions).

Claims (5)

A storage tray for storing panel-shaped articles,
A tray body molded of synthetic resin;
The planar shape is a quadrangle and is formed by opening on the upper surface of the tray body, and the inner surface is formed in a tapered surface inclined outward from the lower end in the depth direction toward the upper end, and a plurality of the panel-shaped articles are formed inside. A plurality of storage recesses that are stacked and stored in the vertical direction so that their surfaces come into contact with each other ;
The panel-shaped article is horizontally displaced within the storage recess by supporting the outer peripheral surface of the panel-shaped article that is formed perpendicular to a part of the inner surface of the storage recess and is stacked in the storage recess in the vertical direction. A storage tray for a panel-like article, comprising: a vertical support portion for preventing movement.   2. The storage tray for a panel-shaped article according to claim 1, wherein the vertical support portion is formed on the inner surfaces of at least a pair of opposing side walls among the four side walls of the storage recess.   2. The storage of a panel-shaped article according to claim 1, wherein the tray main body is formed in a curved shape so as to protrude upward, and is elastically deformed flat by the weight of the panel-shaped article stored in each storage recess. tray.   The wall portion that separates the adjacent storage recesses is provided with a groove portion that allows the both ends of the panel-shaped article stored in each storage recess to be held between fingers. A storage tray for the panel-shaped article according to 1.   On the lower surface of the tray body, there is formed a holding portion for restricting the panel-like article stacked and stored in the storage recess of the lower tray body from being raised from the storage recess when a plurality of tray bodies are stacked. The storage tray for a panel-shaped article according to claim 1.

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