Connector plug

Details Connector plug Connector plug

1999-12-09

2001-10-09

Bradley, Paula (Department: 2833)

Electrical connectors

With vitreous-type envelope

Having bayonet-coupling contact

C439S607070

Reexamination Certificate

active

06299486

ABSTRACT:

TECHNOLOGY FIELD
The present invention relates to a connector plug suitable for the transmission of digital signals when a VTR, TV, CD player, tuner, amplifier, etc. require interconnection with one another.
BACKGROUND TECHNOLOGY
In general, a connector
10
is, as shown in FIG.
7
(
a
), composed of a connector socket
12
which is adapted for connection to a chassis, and the connector plug
11
, which is connected at the end of a cable
25
.
The above-mentioned connector plug
11
has a plurality contacts
23
on the inside of the open front of a housing
22
, and has the outer periphery of this housing
22
covered with a shaped metal shell
32
. The plural contacts
23
are connected to either a signal conductor or a power line contained in the cable
25
. This connecting portion is enclosed within a cover
24
.
Conventionally, to ensure a good contact when fitting the connector plug
11
into the connector socket
12
, as shown in
FIG. 7
(
b
), a projection or “bulging-out” portion
35
which is resiliently springy, is formed both in the tip portion and the central portion of both the top and bottom faces of the metal shell
32
, respectively.
This conventional connector plug
11
is designed to held in the connector socket
12
only by these bulging-out portions
35
. However, even though it is desired to install the bulging-out portion
35
of sufficient shape to function as a spring with respect to the angular cylindrical metal shell
32
, under the circumstances wherein downsizing is demanded, there is a dimensional restriction resulting in a problem that adequate spring properties cannot be obtained.
Therefore, the present invention is aimed at offering a connector plug in which adequate spring properties can be obtained with almost no change in the shape of the conventional metal shell.
Additionally, the present invention is aimed at offering a connector plug wherein the construction as a whole is compact, and the metal shell portion is securely retained in the connector socket.
DISCLOSURE OF THE INVENTION
The present invention is, as shown in FIG.
1
and
FIG. 3
, a connector plug which features a housing
78
with plural contacts
82
in a socket engagement opening or hole
81
, and which is covered with a metal shell portion
88
composed of a conductive metal plate and which forms a shield case
79
. The metal shell portion
88
has an essentially hollow rectangular configuration, and includes a resilient or elastic portion
77
which extends out on both sides. This endows flexibility along both of the lower sides and forms a gap which extends along the length of the metal shell portion.
When inserting a connector plug
41
into a connector socket
42
, the elasticity of portion
77
of the metal shell portion
88
, renders the metal shell portion
88
as a whole flexible, and when the metal shell portion
88
is pushed into the interior of a connector socket
42
, the distortion is absorbed by the gap
89
, and the metal shell portion
88
is securely retained in the connector socket
42
.
In addition to this, since the metal shell
88
is flexible, an elastic portion of the natured used in the conventional arrangement is not required, and the whole construction becomes simpler and more compact.


REFERENCES:
patent: 5041020 (1991-08-01), Michael
patent: 5338227 (1994-08-01), Nakamura
patent: 5622522 (1997-04-01), Tan et al.
patent: 5788537 (1998-08-01), Davis et al.
patent: 6039606 (2000-03-01), Chiou
patent: 58-139686 (1983-09-01), None
patent: 59-192282 (1984-12-01), None
patent: 63-172069 (1988-11-01), None
“P1394a Draft Standard for a High Performance Serial Bus (Supplement)”, IEEE; P1394a Draft 2.0, Mar. 15, 1998, pp. 25-31.
“Cable Connector with Integral Grounding Feature”, E.C. Uberbacher, IBM Technical Disclosure Bulletin, vol. 23, No. 9, Feb. 1981, pp. 4242-4243.

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