Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Reexamination Certificate
2000-07-28
2001-11-27
Paladini, Albert W. (Department: 2841)
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
C174S260000, C174S261000, C301S064600, C301S064600
Reexamination Certificate
active
06323440
ABSTRACT:
TECHNICAL FIELD
The present invention relates to a part holder for holding a part to be provided in a circuit board for composing an electric circuit of an electric appliance, and a substrate having such part holder.
BACKGROUND ART
Hitherto, printed circuit boards have been widely used in the field of electric appliances. In printed circuit boards, holes for inserting leads of electronic parts with leads are small in diameter in order that solder may not come out to the upper side through insertion holes when soldering by flow method. Therefore, when inserting an electronic part with leads, for the ease of insertion of leads, it has been widely known to fix a separately fabricated insertion guide preliminarily to the printed circuit board.
The insertion guide of a prior art is described below by referring to FIG.
20
and FIG.
21
. An insertion guide
101
has fixing protrusions
102
near the central part, and these fixing protrusions
102
are fitted into positioning holes
104
provided in a printed circuit board
103
, and it is mounted on the printed circuit board
103
. When the insertion guide
101
is thus mounted on the printed circuit board
103
, conical guide holes
107
for guiding leads
106
of an electronic part
105
provided at both ends of the insertion guide
101
, and penetration holes
108
of small inside diameter are positioned so as to be coaxial with insertion holes
109
of the printed circuit board
103
. In this state, when the leads
106
are inserted into conical guide holes
107
, the leads
106
can be easily inserted along the conical portion of the guide holes
107
.
In the constitution of the prior art, first, regarding the insertion guide, unless the electronic part with leads is fixed provisionally by clinching the lead wires, the electronic part with leads may drop off while conveying the printed circuit board. Next, regarding the printed circuit board, unless the part is fixed provisionally by using adhesive or clinching the leads, the part may drop off while conveying the printed circuit board.
DISCLOSURE OF THE INVENTION
In the light of the conventional problems, it is hence an object of the invention to present a part holder not requiring any process for fixing provisionally the part, a substrate having such part holder, and a method of manufacturing it.
REFERENCES:
patent: 4725920 (1988-02-01), Ijichi et al.
patent: 5858100 (1999-01-01), Maeda et al.
patent: 5870289 (1999-02-01), Tokuda et al.
patent: 54-94856 (1979-07-01), None
patent: 58-142958 (1983-09-01), None
patent: 59-160955 (1984-11-01), None
patent: 61-27271 (1986-02-01), None
patent: 64-54359 (1989-04-01), None
patent: 5-13892 (1993-01-01), None
Japanese language search report for Int'l Appln No. PCT/JP96/01681 dated Sep. 24, 1996.
English translation of Japanese language search report for Int'l Appln. No. PCT/JP96/01681 dated Sep. 24, 1996.
Hikita Osamu
Kadoriku Shinji
Maruyama Yoshio
Matsuo Takahiro
Matsushita Electric - Industrial Co., Ltd.
Paladini Albert W.
Ratner & Prestia P.C.
LandOfFree
Part holder, substrate having same, and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Part holder, substrate having same, and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Part holder, substrate having same, and method of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2605333