JPH1170988A - Cassette for transporting glass plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cassette which can be adapted for various sizes of glass plates. SOLUTION: This cassette is made such that there are provided a plurality of stages of rows of supporting rods 14 projected inwardly at the same height with each other from both sides by a plurality of numbers, and further a plurality of glass plates P are stored in the cassette in such a way that one glass plate P may be mounted on the supporting rods 14 at the same stage. The supporting rods 14 are provided with a positional displacement preventing means for increasing a frictional force with the glass plate P. At least a contact portion of the supporting rod 14 with the glass plate P is applied with a rubber material or the supporting rod 14 is formed by a rectangular rod to increase a contact area with the glass plate P or the supporting rod 14 is machined to form a tapered segment which is made fine toward its extremity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette used to store and transport a plurality of glass plates.

[0002]

2. Description of the Related Art The future of a gas discharge display panel is expected as a so-called "wall mounted television" which has a large screen and takes up little space. At present, a glass plate is used as a substrate of the display panel, and various processes are performed on the glass plate so as to have a necessary function as the substrate. At the time of manufacturing, it is necessary to move the glass sheet between the steps for performing these processes.In this case, in consideration of efficiency, the glass sheet is moved in a state where multiple glass sheets are housed in one cassette and put together. ing.

Conventionally, as shown in FIG. 1 and FIG. 2, a cassette for transporting a glass plate is used. In this cassette, an upper plate 1, a lower plate 2, and five left and right side bars 3 connecting the upper and lower plates 2 constitute a frame, and grooves 3a for mounting a glass plate P on each side bar 3 are arranged at equal intervals. 6
It is a step formed. Then, the six glass plates P are stored in a state where they are not moved so that the ends of the glass plates P are placed on the respective steps formed by the grooves 3a. Specifically, the glass plates P are stored in the cassette in order from the top so as to abut against the two pin bars 4 and 5 at the back, and six glass plates P are stored therein, and the pin bar 6 on the near side is stored in the upper plate 1. And lower plate 2 to prevent movement in the front-rear direction.

[0004]

Incidentally, since the gas discharge display panels as described above have various sizes, it is necessary to convey glass plates having different sizes for each lot between each process when processing the substrate. Come. In such a case, in the transfer cassette described in the related art, since the size of the substrate to be stored is determined, it is necessary to prepare cassettes corresponding to glass plates of various sizes, and moreover, a large number of cassettes are required. Storage space is required. Also,
When the size of the cassette changes, it is necessary to change the distribution equipment in the production line.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a glass sheet transport cassette that can handle glass sheets having different sizes.

[0006]

In order to achieve the above object, a glass sheet transport cassette according to the present invention comprises a plurality of rows of support rods projecting inward at the same height from each side at a plurality of levels. A cassette that is provided across and supports a plurality of glass plates such that one glass plate is placed on a support rod of the same level, and the support rod increases the frictional force with the glass plate. A shift preventing means is provided.

[0007] Specifically, the displacement preventing means uses a rubber-based material at least in a contact portion of the support bar with the glass plate, or increases the contact area with the glass plate by using the support bar as a square bar. Alternatively, the support bar can be provided by subjecting the support bar to taper processing that becomes thinner toward the tip.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 is a front view showing an example of the glass sheet transport cassette according to the present invention, FIG. 4 is a right side view,
FIG. 5 is a sectional view taken along line AA of FIG.

The cassette of the present invention is used for storing a large-sized glass plate and for storing a small-sized glass plate. That is, the cassette is accommodated in a glass plate having a different size. In the cassette shown in the drawing, the upper plate 11 and the lower plate 12, and the upper plate 11 and the lower plate 12 can be secured. A frame is formed by the five left and right side plates 13 to be connected. These upper plate 11, lower plate 12,
The side plate 13 is preferably made of aluminum in consideration of strength, weight and durability. The upper plate 11 may be a single flat plate, but the lower plate 12 needs to have a large opening so that a jig for inserting and removing the glass plate P can enter and exit.

Each of the side plates 13 is provided with six support rods 14 of the same length protruding inward at equal intervals in the vertical direction. That is, the support rods 14 protrude inward such that five rows from each side form a row at the same height, and the rows of the support rods 14 are provided in six stages. Then, as shown in FIG.
One glass plate P is placed on 4 so that six glass plates P can be stored. Glass plate P
Is stored in the center of the cassette in the width direction, so that the support rod 14 only needs to be long enough to receive the glass plate of the minimum size to be stored. In FIG. 5, M indicates the maximum size of the glass plate to be stored, and m indicates the minimum size.

In order to accommodate glass plates of different sizes in this way, when a glass plate of the maximum size M is accommodated, the glass plate does not shift during the movement of the cassette, but a glass of a smaller size is used. When the plate is stored, the glass plate slides on the support rod 14 and shifts due to the inertial force during the movement of the cassette. Therefore, displacement can be prevented by increasing the frictional force between the support rod 14 and the glass plate P.

FIG. 6 shows an example of the means for preventing displacement, in which a rubber material 14a is provided around the support rod 14. As shown in FIG. This rubber-based material 14a is used to prevent the deterioration of the glass plate.
It is preferable to use a material which does not exude the additive. Specifically, a polyester elastomer is used. The rubber-based material 14a does not need to be provided over the entire periphery of the support rod 14 as shown in the figure, and it is sufficient to provide the rubber-based material 14a only at a portion where the glass plate is in contact if the mounting method is reliable.

FIG. 7 shows another example of the displacement preventing means. In order to increase the contact area between the support bar 14 and the glass plate, the support bar 14 is a square bar. Since the contact area with the glass plate only needs to be large, the cross-sectional shape of the support rod 14 may not be a square as shown in the figure but may be another polygon. Even when the support rods 14 are square rods, it is more effective to provide the rubber material 14a around the support rods 14 as shown in FIG. 7B.

FIG. 8 shows still another example of the displacement preventing means. The support rod 14 is tapered so as to become thinner toward the tip. By tapering the support bar 14 in this manner, the edge of the glass plate P comes into contact with the slope of the support bar 14 and the frictional force is increased, so that it is difficult to shift. Also in this case, the cross-sectional shape of the support rod 14 may be polygonal, or the rubber-based material may be provided at a contact portion with the glass plate P.

By increasing the frictional force between the support rod 14 and the glass plate P as described above, the displacement of the glass plate P during the movement of the cassette can be prevented. It is preferable to pass a pin rod between the lower plate 11 and the lower plate 12. For example, the pin bars are passed through the positions of a and b in FIG. 5 and the glass plates P are stored in order from the top in this state, and after the storing operation is completed, the pin bars are moved to the position of c in FIG. The movement in the front-rear direction may be prevented through.
When a glass plate having a maximum size of M is stored in the above-described cassette, the glass plate is prevented from being misaligned by a side plate 13 in the width direction and a pin bar in the front-rear direction, as shown in FIG.

[0016]

As described above, the glass sheet transport cassette of the present invention is provided with a plurality of rows of support bars protruding inward at the same height from each side at a plurality of levels. A plurality of glass plates are accommodated by placing one glass plate on the same supporting rod, and the supporting rod is provided with a means for preventing displacement to increase the frictional force with the glass plate. With this arrangement, a single cassette can handle glass plates of different sizes, and if a small glass plate is stored, the glass plate will be misaligned in the cassette while the cassette is moving. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of a conventional glass sheet transport cassette.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a front view showing an example of the glass sheet transport cassette according to the present invention.

FIG. 4 is a right side view of the cassette shown in FIG.

FIG. 5 is a sectional view taken along line AA of FIG. 3;

FIG. 6 is a cross-sectional view of a support rod provided with a displacement prevention unit.

FIG. 7 is a cross-sectional view of a support rod provided with another displacement prevention means.

FIG. 8 is a side view of a support rod provided with another displacement prevention means.

[Explanation of symbols]

 P Glass plate 11 Upper plate 12 Lower plate 13 Side plate 14 Support rod 14a Rubber-based material

Claims (4)

[Claims] 1. A plurality of rows of support rods protruding inward at the same height from a plurality of sides from both sides are provided over a plurality of stages, and one glass plate is placed on the support rods at the same level. A cassette for accommodating a plurality of glass plates in such a manner as described above, wherein a support rod is provided with a displacement preventing means for increasing a frictional force with the glass plates. 2. The glass sheet transport cassette according to claim 1, wherein a rubber-based material is used at least in a contact portion of the support rod with the glass sheet. 3. The glass sheet transport cassette according to claim 1, wherein the support rod is a square rod to increase the contact area with the glass sheet. 4. The glass sheet transporting cassette according to claim 1, wherein the support rod is tapered so as to taper toward the tip.