Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate
2001-10-12
2003-07-08
Cuneo, Kamand (Department: 2829)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
C324S761010, C324S1540PB
Reexamination Certificate
active
06590406
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an apparatus for inspecting a display board or a circuit board, and more particularly to a mechanism for exchanging a display board or a circuit board in an inspection apparatus.
2. Related Art
Conventionally, an inspection of a display board or a circuit board as represented by a liquid crystal panel and a plasma display panel is carried out in the following manner. As shown in
FIGS. 1 and 2
, a block probe supporting frame member
2
for supporting an inspection probe block B thereon is arranged at a front side of a display board or circuit board P, and a board supporting frame member
1
for supporting the display board or the circuit board P thereon is arranged at a rear side of the board. The board supporting frame member
1
arranged at the rear side is relatively movably arranged for advancement and retraction with respect to the probe block supporting frame member
20
. An inspection terminal
4
of the inspection probe block B supported on the board supporting frame member
1
is pressed into contact, for inspection, with an electrode pad
3
of the display board or the circuit board P supported on the board supporting frame member
1
by advancement of the board supporting frame member
1
. After the completion of the inspection, the board supporting frame member
1
is retracted/retreated sideways so that the display board or the circuit board P can be exchanged with another board.
Accordingly, the conventional inspection apparatus needs an occupation space for exchange of boards in addition to an occupation space for the inspection of the display board or the circuit board. For this reason, the conventional inspection apparatus is inevitably made large in size.
SUMMARY OF THE INVENTION
It is, therefore, an object of the present invention to provide an apparatus for inspecting a display board or a circuit board, in which no occupation space for exchanging a display board or a circuit board is needed. In addition, the apparatus for inspecting the display board or the circuit board can be miniaturized, and a display board or a circuit board can easily and safely be exchanged at a front surface of a probe block supporting frame member without creating interference between an inspection terminal of a probe block and a display board or a circuit board.
In order to achieve the above object, according to the present invention, there is provided an apparatus for inspecting a display board or a circuit board, wherein the probe block supporting frame member has an enlargable and reducible structure. In particular, the probe block supporting frame member can be enlarged and the board supporting frame member can be relatively advanced, and by the relative advancement of the board supporting frame member, the display board or the circuit board is caused to protrude forward of a distal end of the terminal of the probe block through an enlarged opening portion of the probe supporting frame member. Therefore, the display board or the circuit board supported on the board supporting frame member can be exchanged with another board.
REFERENCES:
patent: 4841231 (1989-06-01), Angelucci
patent: 5192908 (1993-03-01), Shibata
patent: 5218292 (1993-06-01), Goto
patent: 6420884 (2002-07-01), Khoury et al.
patent: 6450469 (2002-09-01), Okuno
Furumi Tadashi
Mizutani Gunji
Nagashima Masatomo
Okuno Toshio
Cuneo Kamand
Nguyen Tung X.
Soshotech Co., Ltd
Wenderoth , Lind & Ponack, L.L.P.
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