Electrical connectors – Contact comprising cutter – Insulation cutter
Reexamination Certificate
2000-05-17
2001-10-02
Sircus, Brian (Department: 2839)
Electrical connectors
Contact comprising cutter
Insulation cutter
C439S397000
Reexamination Certificate
active
06296513
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an electrical terminal which is equipped with first electrical wire accommodating slots that accommodate a first electrical wire extending from an electrical device such as a motor, etc., and second electrical wire accommodating slots that accommodate a second electrical wire that is separate from the first electrical wire, and in which the first electrical wire and second electrical wire are electrically connected.
BACKGROUND OF THE INVENTION
The electrical terminal shown in
FIG. 5
is a conventional electrical terminal as disclosed in U.S. Pat. No. 4,118,103. This electrical terminal
100
is formed by stamping and bending a metal plate, and has a pair of opposing plate parts
102
that are connected via a bent part
101
. A pair of opposing first electrical wire accommodating slots
103
which are formed in the bottom portions of the plate parts
102
and which accommodate a first electrical wire (not shown in the figures), and a pair of opposing second electrical wire accommodating slots
106
which are formed in the upper portions of the plate parts
102
and which accommodate a second electrical wire (not shown in the figures), are respectively formed in the opposing plate parts
102
. First electrical wire accommodating openings
104
which are wider than the first electrical wire accommodating slots
103
are formed so that these openings extend from the bottom ends of the pair of plate parts
102
to the first electrical wire accommodating slots
103
, and a pair of protruding edge parts
105
which remove the insulating covering of the first electrical wire are formed on both sides of each first electrical wire accommodating slot
103
. Furthermore, folded-back portions
107
which are folded back to the inside toward each other from the respective upper ends of the pair of plate parts
102
are formed, and protruding parts
108
that protrude inward are formed in the respective folded-back portions
107
. As a result of the presence of the folded-back portions
107
, the thickness of the plate parts
102
which have the second electrical wire accommodating slots
103
is doubled, so that the strength of the plate parts
102
is sufficient when a relatively thick second electrical wire is inserted into these accommodating slots.
The first electrical wire (not shown) is a slender electromagnetic coil conductor which is insulated by varnish, while the second electrical wire (not shown) is a conductor whose core is covered by an insulating outer covering consisting of a synthetic plastic material that is thicker than a varnish covering.
In the case of the electrical terminal
100
shown in
FIG. 5
, the first electrical wire accommodating slots
103
and second electrical wire accommodating slots
106
formed in the plate parts
102
are respectively formed as pairs of slots. As a result, the first electrical wire accommodated in the first electrical wire accommodating slots
103
and the second electrical wire accommodated in the second electrical wire accommodating slots can be securely connected to the electrical terminal
100
, so that the mutual connection of the first and second electrical wires can be securely accomplished.
However, since the first electrical wire accommodating slots
103
and second electrical wire accommodating slots
106
are formed in the same flat plates, the slots are parallel to each other. As a result, the first electrical wire accommodated in the first electrical wire accommodating slots
103
and the second electrical wire accommodated in the second electrical wire accommodating slots
106
are effectively parallel to each other, so that cases in which it is desired to cross the first electrical wire and second electrical wire when the wires are connected to the electrical terminal
100
cannot be handled.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an electrical terminal which makes it possible to achieve a secure electrical connection between a first electrical wire and a second electrical wire, and which makes it possible to connect the first electrical wire and second electrical wire at right angles to one another.
The electrical terminal of the present invention is formed by being stamped and bent from a metal plate, and is equipped with a pair of opposing first electrical wire accommodating slots which are respectively formed in a pair of opposing first plate parts, and a pair of second electrical wire accommodating slots which are respectively formed in a pair of opposing second plate parts, such that a first electrical wire may be accommodated in the first electrical wire accommodating slots and a second electrical wire may be accommodated in the second electrical wire accommodating slots. The first electrical wire and the second electrical wire are electrically connected. The pair of second plate parts are formed by a pair of plate parts which are bent from both side edges of a flat plate part extending from one of the first plate parts, with these plate parts being bent substantially at right angles with respect to the flat plate part, and the pair of second electrical wire accommodating slots formed in the second plate parts and the pair of first electrical wire accommodating slots formed in the first plate parts cross each other substantially at right angles.
Furthermore, it is effective if a stopper part, which restricts the movement of the second plate parts to the outside when the second electrical wire is accommodated in the second electrical wire accommodating slots, is formed on the first plate part that is opposite the first plate part from which the flat plate part extends.
Furthermore, it is effective if a reinforcing bead part which reinforces the flat plate part is formed on the flat plate part.
REFERENCES:
patent: 4118103 (1978-10-01), Leidy et al.
patent: 4127312 (1978-11-01), Fleischhacker et al.
patent: 4648673 (1987-03-01), Endo et al.
patent: 5044978 (1991-09-01), Gelin
patent: 5358423 (1994-10-01), Burkhard et al.
patent: 0 435 292 A1 (1991-07-01), None
patent: 0 571 156 A2 (1993-11-01), None
patent: 2 581 259 (1986-10-01), None
patent: WO 98/47201 (1998-10-01), None
European Search Report, Application No. EP 00 30 4499 Sep. 19, 2000.
Ishikawa Toshiharu
Suzuki Mitsuru
Nasri Javaid
Sircus Brian
Tyco Electronics AMP K.K.
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