JPH09200658A - Removal device for display device and removal method for display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely and simply remove the display device by providing an induction heat means to heat up a mount frame contactless and expanding the frame and a display device moving means removing the display device removing the display device from the mount frame expanded and separated from the display device. SOLUTION: An inductive heating power supply section 120 supplies high frequency power to an inductor 101 via a cable 161 and a power supply terminal 151. The inductor 101 receiving the power heats up uniformly the entire surrounding of the mount frame 230. A display device moving means 500 has a pusher plate 512 and a cylinder 511 and the plate 512 is formed to be a curved face to receive a panel face of a cathode ray tube 200 and the cylinder 511 is fixed to a fixing section 376. The cylinder 511 is a hydraulic or pneumatic cylinder and when the cylinder 511 is operated, the plate 512 is moved upward. The tube 200 is lifted up from a coupled body between the frame 230 and the cabinet T02. Thus, the display device is simply removed from the mount frame used to mount the display device to the device main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detaching device for separating and disassembling an electronic device having a display device, and more particularly to a detaching device and a display device for detaching a display device such as a cathode ray tube from a mounting frame. The removal method is related to.

[0002]

2. Description of the Related Art An electronic device, for example, a television set having a cathode ray tube as a display device has a structure as shown in FIG. In the television set 701, a cathode ray tube (CRT, cathode ray tube) 200, other circuit boards, and the like are arranged in a cabinet (apparatus body) 702. The cathode ray tube 200 has a panel portion 210 made of a substantially transparent glass material and a funnel portion 211 made of a glass material mixed with lead. The panel portion 210 and the funnel portion 211 are frit glass (solder glass). Are welded together to form an annular shape.

In such a cathode ray tube 200, a metal explosion-proof band 705, a panel portion 210 and a funnel portion 21 are provided.
The cathode ray tube 200 is attached with the outer periphery of the cathode ray tube 200 being clamped. The cathode ray tube 200 includes the metal fittings 11 a for holding the explosion-proof band 705.
11d is held against the fixing seat 707 on the inside of the front of the cabinet 702 and attached by screws 704. Since the panel portion 210 and the funnel portion 211 of the cathode ray tube 200 are made of glass, they are relatively easy to reuse. Therefore, when recycling the cathode ray tube, it is necessary to remove the cathode ray tube, which is easily regenerated, from the explosion-proof band 705 which is the mounting frame as described above.

As described above, when the glass portion of the cathode ray tube of a used or failed television set is reused, the cathode ray tube is an explosion-proof band 705 which is a mounting frame.
Although it is necessary to remove the cathode ray tube from the conventional method, there are the following conventional methods for removing the cathode ray tube.

[0005]

As a method of separating the mounting frame from the cathode ray tube, there is a method of cutting the mounting frame with a cutter. However, there is a problem that the cathode ray tube may be damaged when the attachment frame is cut, and it is difficult to safely remove the cathode ray tube.

Further, a conductor is directly applied to a metal mounting frame, and electric power is directly applied to the mounting frame via this conductor, whereby the mounting frame is heated and expanded, whereby the cathode ray tube is mounted on the mounting frame. There is a method that comes off. But with this method,
The heating effect of the mounting frame is due to the conductor contacting the mounting frame (power supply part)
However, there is a problem in that it is difficult to control the heat treatment work because it changes depending on the contact state of. Therefore, the present invention has been made to solve the above problems, and is a device for removing a display device and a device for removing the display device, which can be surely and easily removed from an attachment frame for attaching the display device to the apparatus body. It is intended to provide a way.

[0007]

SUMMARY OF THE INVENTION In the present invention, the above object is a device for removing a display device from a mounting frame for mounting the display device on the main body of the apparatus, and is a non-contact device. With an induction heating means for causing the mounting frame to generate heat to expand, and a mounting device distended from the display device for expanding, and a display device moving means for removing the display device, a device for removing the display device, To be achieved. In the present invention, when the display device is detached from the mounting frame for mounting the device body, the induction heating means causes the mounting frame to generate heat without contact and expand. When the mounting frame expands, the display device moving means removes the display device from the mounting frame separated from the display device. Thus, the induction heating means can heat and expand the mounting frame in a non-contact manner, thereby creating a minute gap between the display device and the mounting frame, and the display device moving means causes the display device to move. It can be easily and surely removed from the mounting frame.

[0008]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limitations are given, the scope of the present invention is not limited to these modes unless otherwise specified to limit the present invention.

FIG. 1 is a perspective view showing a preferred embodiment of a device for removing a display device according to the present invention. In FIG.
The device for removing the display device includes the induction heating means 150 and the drive unit 2.
01, a control unit 100, a conveying unit 400, a display device moving unit 500, and the like. The transport means 400 removes the assembly of the cabinet 702 from the loading side in the removal work position W.
It can be conveyed to P and positioned.

Here, in the embodiment of the present invention, a cathode ray tube 200 is used as an example of a display device, and the cathode ray tube 200 is provided with respect to a cabinet (apparatus body) 702 as shown in FIG. And is fixed via a mounting frame (also referred to as an explosion-proof band) 230. The cabinet 702 is made of plastic, for example, and has seats 707 at four corners. The mounting frame 230 is a band-shaped metal fitting, and has holding metal fittings 11a to 11d at its four corners. The holding metal fittings 11 a to 11 d are the cabinet 702.
Are firmly fixed to the seats 707 at the four corners by bolts 704. The detaching device of the display device according to the embodiment of the present invention is for detaching only the cathode ray tube 200 from the connecting body of the mounting frame 230 and the cabinet 702.

The induction heating means 150 shown in FIG.
10, an induction heating power supply unit (power supply) 120, a cable 161, a power supply terminal 151, and the like. The inductor section 110 includes the inductor 101, and the inductor 10
1 has protruding portions 101a to 101d at four corners as shown in FIG. The protruding portions 101a to 101d correspond to the holding metal fittings 11a to 11d of FIG.
It has a shape that surrounds 1a to 11d in a non-contact manner.
The inductor 101 has frame-shaped 101a and 101b corresponding to the four sides of the mounting frame 230. Side part 101a, 1
01b are arranged in parallel, and are arranged at a predetermined interval as shown in FIG. Moreover, the inductor 101
Is larger than the size of the mounting frame 230, and the entire circumference of the inductor 101 is the mounting frame 2 as shown in FIG.
The size is such that it can be surrounded in a non-contact manner with a clearance C with respect to the entire circumference of 30. This gap C
Is preferably in the range of 2 mm to 3 mm, for example.

The induction heating power supply unit 120 of FIG. 1 supplies high frequency power (high frequency voltage) to the inductor 101 via the cable 161 and the power supply terminal 151. This induction heating power supply unit 120
Is a high frequency power source and its frequency is 50 KHz to 10
It preferably operates in the 0 KHz range. Power supply unit 12
The high frequency power of 0 is, for example, about 10 KW. The overall width of the inductor 101 is approximately the same as the width of the mounting frame 230 as shown in FIGS. 1 and 2, so that the inductor 101 is mounted on the mounting frame 230 when high frequency power is supplied. Can be heated uniformly over the entire circumference of. The power supply unit 120 can supply a predetermined power even if the resistance value of the mounting frame 230 heated by the inductor 101 changes.

Next, the drive unit 201 will be described. The drive unit 201 is for vertically moving the inductor unit 110 of the induction heating unit 150 described above in the arrow Z direction. The drive unit 201 is provided on the fixed unit 233 corresponding to the above-described removal work position WP in FIG.

The drive unit 201 includes a base portion 209, an actuator 231, a table 238, an insulator 221 and the like. The actuator 231 is attached to the base 209, and the rod 231 of the actuator 231 is attached.
a is linked to the table 238. Therefore, the actuator 231 operates and the rod 231a moves up and down in the direction of arrow Z, so that the table 238 moves toward the guide rail 2
A predetermined stroke can be moved in the direction of arrow Z by 18, 218.

The table 238 fixes the power supply terminal 151 via the insulator 221. Therefore, by the operation of the actuator 231, the inductor portion 110 is lowered from the state of FIG. 2 in the arrow Z1 direction (downward direction), and the inductor 10
1 can be arranged so as to surround the periphery of the mounting frame 230 as shown in FIG.

Next, the display device moving means 500 will be described with reference to FIGS. 1 and 4. This display device moving means 5
00 has a cylinder 511 and a pusher plate 512. The pusher plate 512 is attached to the rod 511a of the cylinder 511. Moreover, the upper surface 512
a has a curved shape to receive the panel surface 210a of the cathode ray tube 200. This cylinder 511 is fixed part 3
It is fixed to 76. The cylinder 511 is, for example, a hydraulic cylinder or a pneumatic cylinder, and the cylinder 5
When the rod 11 operates, the pusher plate 512 moves up in the direction of the arrow Z2 (upward) together with the rod 511a, so that the cathode ray tube 200 can be lifted up from the mounting frame 230.

In FIG. 1, suction holding means 700 for the cathode ray tube is arranged above the removal work position WP.
The suction holding means 700 includes a hollow cover 710 for covering the cathode ray tube 200, a vertical movement means 720, and a suction means 730. This cover 710 is moved down from the upper position in the Z1 direction by the vertical movement means 720, and is shown in FIG.
The cathode ray tube 20 in a lifted state as shown in FIG.
Can cover 0. Moreover, the suction means 730
Is activated and the inside of this cover 710 is vacuum-sucked,
The cathode ray tube 200 that is removed from the mounting frame 230 and that is placed on the pusher plate 512 can be suction-held. The control unit 100 described above includes the actuator 231 of the drive unit 201 and the display device moving unit 5 as shown in FIG.
No. 00 cylinder 511, conveying means 400, induction heating power supply section 120, suction holding means 700 vertical movement means 72.
0 and the suction means 730 are controlled.

Next, a method of removing the above-mentioned 5 display device by the removing device will be described. The conveyor of the transport means 400 of FIG. 1 operates and the cabinet 702 is transported to the removal work position WP and positioned. As shown in FIGS. 1 and 2, the cathode ray tube 200 is firmly fixed to the cabinet 702 via a mounting frame 230, and is for disposal. Therefore, it is necessary to remove the cathode ray tube 200 from the mounting frame 230 and divide it into the cathode ray tube 200 and the connected body of the mounting frame 230 and the cabinet 702.

The cathode ray tube 200 and the connecting body of the mounting frame 230 and the cabinet 702 are separated from each other as follows. The inductor part 110 is located at the first position PL1 as shown in FIG. 2, and when the actuator 231 of the drive part 201 of FIG. 1 is actuated, the rod 231a moves toward the arrow Z1.
And extends from the first position PL1 in FIG. 2 to the second position PL2. As a result, as shown in FIGS. 1, 3 and 4, the inductor 101 is attached to the entire mounting frame 230.
It is arranged so as to surround the entire circumference of without contact.

When the inductor 101 is arranged corresponding to the mounting frame 230, the heating preparation step is started. That is, the induction heating power supply unit 120 of FIG. 1 supplies high frequency power (high frequency voltage) to the inductor 101 via the cable 161 and the power supply terminal 151. A high-frequency magnetic flux is generated from the inductor 101 and added to the mounting frame 230. Mounting frame 230
An eddy current flows through the mounting frame 230 and the mounting frame 230 itself generates heat due to the resistance value of the material. That is, the inductor 101
When high frequency power is supplied to the mounting frame 230, the mounting frame 230
Upon receiving the magnetic flux from 01, self-heating occurs due to the eddy current generated inside and the resistance value of the material of the mounting frame 230. As a result, the mounting frame 230 rises in temperature and expands, the thermal expansion coefficient of the mounting frame 230 made of metal, and the cathode ray tube 2 made of glass.
5 (A) to FIG. 5 (B) due to the difference in the thermal expansion coefficient of 00.
As shown in, a gap L is formed over the entire circumference between the mounting frame 230 and the side surface periphery 200a of the cathode ray tube 200. That is, the entire periphery of the four side surface perimeters 200a of the cathode ray tube 200 is separated from the mounting frame 230.
Is separated from the cathode ray tube 200.

Next, the cylinder 511 of the display device moving means 500 of FIG. 1 is actuated, and the pusher plate 512 rises in the direction of arrow Z2 as shown in FIGS. 4 (A) to 4 (B). The cathode ray tube 200 is lifted from the connecting body of the mounting frame 230 and the cabinet 702,
Is held at the third position PL3. Then, the cover 710 of the suction holding means 700 of FIG. 1 descends in the direction of arrow Z1 by the operation of the vertical movement means 720 and covers the cathode ray tube 200 as shown in FIG. 4 (B). When the suction means 730 is operated, the inside of the cover 710 is vacuum-sucked, so that the cathode ray tube 200 is suction-held by the cover 710. Then, the vertical moving means 720 operates to cover the cover 710 and the cathode ray tube 2.
00 is lifted in the direction of arrow Z2. Cathode ray tube 2
00 can be completely removed and separated from the connecting body formed of the cabinet 702 and the mounting frame 230.

The removed cathode ray tube 200 is sent to a necessary place by another discharging means (not shown), and
The connected body of the cabinet 702 and the mounting frame 230 will be sent in the direction of arrow R by the carrying means 400 of FIG. By the way, in the above-described removing method, when the mounting frame 230 is heated, the cathode frame 20 is removed from the mounting frame 230.
Mounting frame 2 in order to reduce the effect of radiant heat on 0
The heating temperature of 30 is, for example, 240 ° C. to 300 ° C., and it is desirable that the heating means be within about 30 seconds.

As an example of heating conditions, when the mounting frame 230 is made of steel and the thickness thereof is 1 mm, the induction heating power supply unit 1 which is, for example, a high frequency power supply is used.
It is preferable that the frequency of 20 is performed in the range of 50 KHz to 100 KHz, the high frequency power is about 10 KW, and the shape of the inductor 101 surrounds the mounting frame 230. The clearance between the mounting frame 230 and the inductor 101 is
As described above, it is preferably in the range of 2 mm to 3 mm. The elongation of the mounting frame 230 due to thermal expansion is about 4 mm when the heating temperature is 240 ° C. when the total length of the mounting frame 230 is 1 m, according to the formula (coefficient × temperature × length). Become. The gap L between the mounting frame 230 and the cathode ray tube 200 in FIG. 5B is, for example, about 0.5 to 0.6 mm.

As described above, in the removing method according to the embodiment of the present invention, the cathode ray tube 200 is positioned at the removing work position WP in FIG. 1 while being fixed to the cabinet 702 via the mounting frame 230. . The inductor part 110 of FIG. 2 descends in the direction of arrow Z1 from the first position (standby position) PL1 to the second position (heating position) PL2, and the inductor 101 is attached as shown in FIGS. 3 and 4. The frame C is arranged so as to surround it around the frame 230, and in a non-contact manner with a gap C therebetween. This mounting frame 230 supplies high-frequency power to the inductor 101 to cause self-heating due to the magnetic force of the inductor 101, so that the mounting frame 230 expands and the cathode ray tube 200.
A gap L as shown in FIG. 5 is formed between the side surface periphery 200a and the mounting frame 230. By thus forming the gap L, the cathode ray tube 200 and the mounting frame 230 can be easily separated. In the embodiment of the present invention, the inductor 101 heats the mounting frame 230 in a non-contact manner, instead of directly supplying electric power to the mounting frame to thermally expand the mounting frame. From this, the mounting frame 230 can be stably and surely heated and expanded.

The separation can be easily performed by using the pusher plate 512 of the display device moving means 500 shown in FIG. By doing this, the cabinet (main body)
The connection body of the mounting frame and the cathode ray tube 200 can be easily separated from each other, and automation can be achieved. Moreover, since the work of removing the cathode ray tube can be stably performed in a short time, the dismantling efficiency can be dramatically improved. Conventionally, such dismantling work has been performed by a professional worker, but even a single worker can easily remove the cathode ray tube by using the above-described removing device. The operation is safe and the quality of the cathode ray tube to be reused can be surely guaranteed without damaging the cathode ray tube.

The present invention is not limited to the above embodiment. For example, the inductor 1 for the mounting frame
When heating with 01, the holding metal fittings 11a to 11d of FIG.
When there is a possibility that the bolts 704 of the above will be welded to the seat portion 707 of the cabinet 702 by heat, the holding metal fittings 11a to 11d and the seat portion 707 corresponding thereto.
It is better to cool the area around. As a result, welding of the bolt 704 and the seat portion 707 can be prevented, and the cabinet 702 and the mounting frame 230 can be easily separated and disassembled in a later step.

The shape of the inductor 101 in FIG. 2 does not necessarily have to correspond to the shape of the mounting frame 230. For example, it is preferable to form the width of the inductor 101 corresponding to the width of the mounting frame 230, but the width is not necessarily limited to that. Further, in the embodiment of the present invention, a cathode ray tube is taken as an example of the display device, but the present invention is not limited to this, and another type of display device made of glass (for example, a plasma display device or a fluorescent display tube) may be used as a device body. It can also be applied when removing from the (cabinet) or its mounting frame.

[0028]

As described above, according to the present invention,
The display device can be reliably and easily removed from the mounting frame for mounting the display device to the device body.

[Brief description of drawings]

FIG. 1 is a perspective view showing a preferred embodiment of a device for removing a display device according to the present invention.

FIG. 2 is a perspective view showing a heating means, a cathode ray tube and the like of the removal device of FIG.

FIG. 3 is a perspective view showing a positional relationship between a cathode ray tube, a mounting frame and an inductor.

FIG. 4 is a positional relationship between a cathode ray tube, a mounting frame and an inductor,
The side view which shows a display apparatus moving means.

FIG. 5 is a diagram showing a positional relationship between a cathode ray tube, an inductor and a mounting frame.

FIG. 6 is a rear perspective view showing an example of a cathode ray tube, a mounting frame and a cabinet of a commonly used television set.

[Explanation of symbols]

 100 Control Unit 101 Inductor 110 Inductor Unit 120 Induction Heating Power Supply Unit (Power Source) 150 Induction Heating Means 200 Cathode Ray Tube (Display Device) 230 Mounting Frame 702 Cabinet (Device Main Body) 400 Conveying Means 500 Display Device Moving Means

Claims (5)

[Claims] 1. A device for removing a display device for removing the display device from a mounting frame for mounting the display device on a main body of the device, and an induction heating means for causing the mounting frame to generate heat and expand without contact. A device for removing a display device, comprising: a display device moving means for removing the display device from a mounting frame that is inflated and separated from the display device. 2. The device for removing a display device according to claim 1, wherein the display device is a cathode ray tube. 3. The detachment of the display device according to claim 1, wherein the induction heating means includes an inductor arranged at a distance from the mounting frame, and a power source for supplying high frequency power to the inductor. apparatus. 4. A method of removing a display device for removing the display device from a mounting frame for mounting the display device on a device body, wherein the induction heating means heats the mounting frame to expand without contact. A gap is formed between the mounting frame and the display device, and the display device moving means is provided with a mounting frame separated from the display device.
A method for removing a display device, comprising removing the display device. 5. The method for removing a display device according to claim 4, wherein the display device is a cathode ray tube.