Electric lamp or space discharge component or device manufacturi – Process – Repairing – converting or salvaging
Reexamination Certificate
1997-07-17
2001-02-13
Ramsey, Kenneth J. (Department: 2879)
Electric lamp or space discharge component or device manufacturi
Process
Repairing, converting or salvaging
C445S061000, C029S564300
Reexamination Certificate
active
06186848
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disassembling method and disassembling apparatus of electronic appliances such as video appliances and audio appliances for disposal or regeneration.
BACKGROUND OF THE INVENTION
For the purpose of effective use of resources and conservation of the global environments, various electronic appliances such as television receivers and personal computer display devices are disassembled, classified by the variety of materials, and regenerated.
As a regeneration processing method, a disassembling method of television receiver is disclosed in Japanese Laid-open Patent Publication No. 5-185064.
Japanese Laid-open Patent Publication No. 5-185064 describes a method of cutting off the neck of a cathode-ray tube, a method of disassembling into shadow mask, funnel glass, and panel, a method of removing the phosphor material applied on the panel surface by cleaning, and a method of crushing the glass portion.
In Japanese Laid-open Patent Publication No. 5-185064, however, nothing is mentioned about a method of separating the cathode-ray tube from the housing, a method of disassembling the metal band for prevention of implosion installed around the cathode-ray tube, or a method of removing the adhesive member used for the purpose of shock absorption and adhesion of the metal band.
It is hence an object of the invention to present a disassembling method and disassembling apparatus for easily disassembling electronic appliances such as video appliances and audio appliances, classifying without allowing mixture of impurities, and recycling at low cost by automation.
SUMMARY OF THE INVENTION
The disassembling method of electronic appliance of the invention is a disassembling method of an electronic appliance having a housing and plural electronic components installed in the housing, comprising:
a step of conveying the electronic appliance having the housing and the plural electronic components installed in the housing by a first conveyor,
a step of separating the electronic appliance conveyed by the conveyor into the housing, a cathode-ray tube of the plural electronic components, and other electronic components of the plural electronic components, at least on one of the conveyor and a work bench installed near the conveyor, and
a step of conveying at least one of the separated housing and the plural electronic components by a second conveyor.
Specifically, the disassembling method of the invention comprises at least two steps of the following steps:
(a) a step of conveying the electronic appliance having a cathode-ray tube of the plural electronic components by a conveyor,
(b) a step of transferring the electronic appliance conveyed by the conveyor onto a tiltable first work bench,
(c) a step of tilting the first work bench so that the forward side may be lower,
(d) a step of removing a portion of the housing from the electronic appliance mounted on the tilted work bench, and forming a first opening,
(e) a cleaning step of blowing air shower to the plural electronic components through the first opening, and removing dust deposits from the plural electronic components,
(f) a step of transferring the electronic appliance on a tiltable second work bench,
(g) a step of tilting the second work bench so that the forward side may be lower,
(h) a step of disassembling and taking out at least one of said plural electronic components from said electronic appliance mounted on said tilted second work bench,
(i) a step of cutting the bottom plate of the housing having the cathode-ray tube into a U-form through the first opening, and forming a second opening,
(j) a step of separating the cathode-ray tube from the housing by working from the second opening,
(k) a step of heating a metal band installed around the cathode-ray tube by high frequency so as to expand, and removing the expanded metal band from the cathode-ray tube,
(l) a step of rotating the cathode-ray tube, fitting a rotary brush to the side of the outer circumference of the rotating cathode-ray tube, and removing the deposit adhered to the circumference of the cathode-ray tube in the mark left over by the removed metal band, by the rotary brush,
(m) a step of distinguishing whether said separated cathode-ray tube has a safety panel at its front side or not,
(n) a step of classifying into cathode-ray tubes having said safety panel and cathode-ray tubes not having said safety panel,
(o) a step of cutting the circumference of display unit of the cathode-ray tube not having the safety panel into a groove form, heating, and separating the display unit from the cathode-ray tube, and
(p) a step of separating at least the one electronic component of taken out of the electronic appliance in a different step.
In this constitution, it is easier to classify into the housing and electronic components, and therefore mixing of electronic components into the disassembled housing can be prevented. Moreover, automation of disassembling procedure of electronic appliance is realized. As a result, the disassembling cost is reduced, the recycling efficiency of housing and electronic components is enhanced, which contributes to preservation of environments and effective use of resources.
The disassembling method of an electronic appliance of the invention is a disassembling method of an electronic appliance having a housing including a plate forming at least one side selected from the group consisting of top, bottom and side, and plural electronic components installed in the housing, comprising:
(a) a step of processing the plate by at least one process selected from the group consisting of end mill processing, laser processing, and water jet processing, and cutting and separating, and
(b) a step of removing a part of the separated plate, and forming an opening.
Preferably, at least the one plate of the top, bottom and side is cut nearly in an U-form.
Preferably, it further comprises:
(c) a step of disassembling at least one of the plural electronic components through the opening, and taking out the disassembled electronic component.
In this constitution, it is easier to classify into the housing and electronic components, and therefore mixing of electronic components into the disassembled housing can be prevented. Moreover, automation of disassembling procedure of electronic appliance is realized. As a result, the recycling efficiency of housing and electronic components is enhanced, which contributes to preservation of environments and effective use of resources.
The disassembling method of an electronic appliance of the invention is a disassembling method of an electronic appliance having a housing including a plate forming at least one side selected from the group consisting of top, bottom and side, and plural electronic components installed in the housing, comprising:
(a) a step of cutting the plate by at least one side of the top, bottom and side, and separating, and
(b) a step of removing a part of the separated plate, and forming an opening.
Preferably, it further comprises:
(c) a step of removing a back cover from the housing, and forming other opening,
wherein the plate of the bottom at the step (a) is cut in a U-form through the other opening by end mill processing.
Preferably, the plate is cut in the U-form through at least one of a first ridge portion at intersection of the top and the side, and a second ridge portion at intersection of the bottom and the side.
Preferably, the plural electronic components include a cathode-ray tube of a television receiver, and a coupling member for coupling the cathode-ray tube, further comprising:
(c) a step of taking out the cathode-ray tube through the opening.
Preferably, the plural electronic components include a cathode-ray tube of a television receiver, and a coupling member for coupling the cathode-ray tube, further comprising:
(c) a step of taking out the coupling member through the opening, and
(d) a step of taking out the cathode-ray tube from the opening after removing the coupling member.
In this constitution, it is easier to classify an elec
Gyobu Takayuki
Matsuda Yutaka
Shimizu Kaoru
Takamori Kazumi
Yotsumoto Mikio
Matsushita Electric - Industrial Co., Ltd.
McDermott & Will & Emery
Ramsey Kenneth J.
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