JPS6035951Y2 - Pallet for transporting cathode ray tubes - Google Patents

Description

[Detailed description of the invention] This invention relates to a pallet for transporting cathode ray tubes.

A cathode ray tube is normally completed through a series of processes such as coating a fluorescent surface, various heat treatment processes, exhausting the inside of the tube, testing process, and packaging process. is used.

In this case, glass is used for the tube body of the cathode ray tube.
They are extremely easy to damage, and since the inside of the tube is kept in a high vacuum, there is a risk of implosion due to external impact.Furthermore, large cathode ray tubes can weigh more than 90%, so they cannot be transported by conveyor. sufficient consideration is required.

FIGS. 1 and 2 show an example of a conventionally used conveyor pallet and conveyor.

In these figures 1 and 2, the conveyance pallet 1
A wooden board 2 with a thickness of about 10 mm is formed into a rectangular shape, and a rubber rod with a circular cross section of about 30 mm in thickness is glued to the center of one side as a support ring 3 with a diameter of about 300 mm. The pallets 1 are placed on a conveyor at predetermined intervals, and the cathode ray tubes 5 are placed on the support wheels 3 of the conveyor pallet 1 with their faces facing downward, and are conveyed to each process. .

Here, the support ring 3 prevents the face of the cathode ray tube 5 from being scratched and provides a suitable cushion.

As is clear from its configuration, such a conventional transport pallet 1 has the disadvantage that the cathode ray tubes 5 can only be placed with their faces facing downward.

That is, in the manufacturing process of the cathode ray tube 5, it may be advantageous to transport the cathode ray tube 5 with its face facing upward instead of with its face facing downward.

For example, as shown in FIG. 3, in the process of evacuating the inside of the cathode ray tube 5, the cathode ray tube is normally mounted facing upward above the exhaust device. In order to do this, it is convenient to handle the face facing upward by suctioning it with the vacuum suction device 9, and it is also desirable to keep the face facing upward in the process of inspecting the external appearance of the face.

On the other hand, the process of holding the face face downward includes, for example, a test process and a process of applying an external conductive film to the cone portion.

In view of the conventional situation, this invention provides a conveying pallet that can easily and easily convey the subject cathode ray tube 5 both downward and upward. Examples thereof are described below. Figures 4 to 1
This will be explained in detail with reference to FIG.

Figure 4 shows a conveyance pallet based on this invention.
The conveying pallet t-10 in this embodiment has a structure consisting of a wooden board 11 and a support ring 12 made of a rubber rod, similar to the conventional one. The holes are opened, and cuts 14 are appropriately formed at the four corners of the wooden board 11.

Therefore, according to the conveying pallet 10 configured in this manner, it is possible to convey the cathode ray tube 5 with its face facing downward and placed on the support ring 12 as in the conventional case, as shown in FIG. By supporting the cone portion 15 on the support ring 12 through the drilled hole 13, as shown in FIG.
It can also be transported with the face facing upward.

Furthermore, the notches 14 formed at the four corners of the conveying pallet 10 make it easy to select and take out the pallets one by one on the conveyor 4 that continuously conveys the pallets 10, as shown in FIG. An example of its use is shown below.

That is, in this FIG.
. . . are conveyed in sequence, and when the pallet (I) OA reaches the designated position, the pallet selection device (not shown) is activated and the stopper 16 is protruded, thereby temporarily stopping the pallet 10A. Then, when a pallet removal command is issued, the stopper 16 is retracted,
The pallet IOA may be released for removal.

In this case, conventionally, while the stopper 16 is operating,
A subsequent pallet IOB to the bound pallet IOA
is stuck and stopped, the specified pallet I
When taking out the OA, the pallet 10B may also move, making it extremely difficult to selectively take out the pallets one by one.

On the other hand, in this invention, since notches 14 are provided at the four corners of each pallet 10, another stopper pin 17.17 is inserted into the notch 14. By providing a mechanism that is ejected from the pallet, it is possible to eliminate the fear of moving the pallet IOB when taking out the pallet (2) as described above, and to enable selective removal of pallets one by one. It is.

Further, the conveying pallet 11 of this invention can be used in the following manner.

First, a mechanism can be applied that flips a cathode ray tube, which is transported with its face facing upward, downward.

An example of this mechanism is shown in Figure 7.
For a pallet IOC on which a cathode ray tube 5 is placed with its face facing upward on the conveyor, another pallet 10D is placed on its face side, and both pallets 10C
910D is held between the arms 19, 19 of the reversing device 11 from above and below to fix the placed cathode ray tube 5, and then the reversing device 18 is rotated 180° to rotate the cathode ray tube 5 on the face. It is held on the conveyor in an upward position, and then the arm 19
．． 19 and remove the unnecessary pallet IOC, which allows the cathode ray tube 5 to be easily reversed while it is being transported. This is only possible through adoption.

Furthermore, a mechanism for controlling the attitude of a cathode ray tube placed with its face facing downward can be applied.

An example of this mechanism is shown in Figure 8.
A posture control plate having a horizontal surface 20 on the upper surface is inserted from below through the hole 13 of the conveying pallet 10 into the cathode ray tube 5 with its face facing downward, which is being conveyed by a conveyor, and the face is lifted up, and the cathode ray tube 5 is moved onto the pallet. 10, the posture can be corrected.Furthermore, for example, in this state, the holding mechanism 2
2 and clamp the side of the panel between the valve holders 23A and 23B to hold the cathode ray tube 5 and handle it as you like, by tilting the tube axis horizontally. Tests can be performed by inserting the deflection yoke into the neck, and this operation is also possible for the first time with this invention.

Furthermore, this design makes it very easy to store the pallets.

That is, as shown in FIG. 9, by using a storage device 11 consisting of a holding rod 24 with a stopper plate 25, and inserting an empty pallet 10 into the holding rod 24 through a hole 13 in the center, a small Many empty pallets can be stored neatly in the space, and if necessary, stopper plate 2 can be installed.
By adopting an opening/closing mechanism for 5, it can be easily taken out.

Furthermore, other embodiments of this invention are shown in FIGS. 10 and 1.
This is shown in Figure 1.

In the embodiment shown in FIG. 10, the support ring 12 is attached inside the hole 13, and it is convenient to use a protrusion 13a projecting from the inner peripheral surface of the hole 13 for attachment.

In the embodiment shown in FIG. 11, support wheels 12 are attached to both sides.

In the embodiments shown in FIGS. 10 and 10, the pallet 10 can be used from both sides, and there is no need to distinguish each side, making it easier to handle.

As detailed above, in this invention, a hole is formed concentrically with the support ring that also serves as a cushioning material, and the pallet is used for transportation. As mentioned above, it has the advantage of being easily automated by being incorporated into the cathode ray tube manufacturing process, and its effects are significant despite its simple structure.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional cathode ray tube conveying pallet, Fig. 2 is an explanatory view when the same pallet is installed on a conveyor, Fig. 3 is an explanatory view showing one aspect of a part of the cathode ray tube manufacturing process, FIG. 4 is a perspective view showing an embodiment of a pallet for transporting cathode ray tubes according to the invention, FIG. 5 is a cross-sectional view of the same pallet used to transport cathode ray tubes with their faces facing upward, and FIGS. 6 to 9 10 and 11 are explanatory diagrams showing the usage and storage configurations of the transportation pallet of this invention, respectively, and FIGS. 10 and 11 are sectional views showing other embodiments of the transportation pallet of this invention. . 4... Conveyor, 5... Brown'!
, 10, 10A, IOB, IOC, IOD...
Transport pallet, 11... Wooden board, 12...
...Support ring, 13...hole, 13a...
Protrusion, 14...notch.

Claims (4)

[Scope of utility model registration request] (1) A pallet for transporting cathode ray tubes, characterized in that one hole is provided in the center of a rigid rectangular flat plate, and support rings that also serve as cushioning material are provided concentrically. (2) A pallet for transporting cathode ray tubes according to claim 1, which is a utility model registration, characterized in that notches are formed in the four corners of the rectangular flat plate. (3) A pallet for transporting cathode ray tubes according to claim 1, characterized in that a support ring is attached to the inner peripheral surface of the hole. (4) A pallet for transporting cathode ray tubes according to claim 1, which is characterized in that support wheels are attached to both sides of the rectangular flat plate.