Geometrical instruments
Patent
1985-11-12
1987-02-03
McQuade, John
Geometrical instruments
H01R 13627
Patent
active
046405666
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an improvement on an electrical connector housing.
Recently, it has been desirable that an electrical connector asembled in electrical equipment and devices be of a small size, thereby enabling the equipment and devices to be lighter and smaller so that the space in which a connector is mounted is small.
Japanese Utility Registration No. 1333825 (Utility Model Publication No. 53-12458) discloses in FIG. 2 of the publication an electrical connector housing comprising a male housing portion and a female housing portion which are matable with each other. The male housing portion has a latching arm which is provided, at the outer surface thereof, with a locking projection. The latching arm lies within a groove formed in the outer wall of the male housing portion and is fixed at one end thereof so as to resiliently flex toward the bottom surface of the groove. On the other hand, the female housing portion has a locking member which is of a projection shape and which is engageable with the latching projection of the latching arm to detachably lock both housings to each other when the male housing portion is mated with the female housing portion.
The above-mentioned known electrical connector has an advantage in that the latching arm is arranged within the groove formed in the outer wall of the male housing portion, and the greater part of the latching arm is adapted to be housed within the female housing portion so that the latching arm is not influenced by an exterior force. On the other hand, however, the construction of the latching arm disclosed in the Utility Model Publication No. 53-12458 has the following problem in making the electrical connector housing smaller. Namely, in the electrical connector housing, the latching projection on the latching arm is provided so as to protrude from the upper surface of the male housing portion body, with the result that the female housing portion requires a space for receiving the latching projection in addition to a space for accommodating the male housing portion body. Therefore, the female housing portion must be formed so as to provide a space having a height corresponding to the sum of the height of the male housing portion body and the height of the latching projection. This prevents the electrical connector housing from having a low profile.
The object of the present invention is to provide an electrical connector housing with an improved latching arm in which the electrical connector housing can be formed smaller than the known electrical connector housing and in which the tangling of wires can be avoided. It is a further object of the invention to provide an electrical connector housing, comprising a male housing portion; a female housing portion which is matable with the male housing portion, characterized in that the male housing portion hs a latching arm on which a latching projection is provided, with the latching arm lying within a groove formed in an outer wall of the male housing portion and one end thereof being fixed so as to resiliently flex toward the bottom surface of the groove, the female housing portion further having a locking member which is engageable with the latching projection of the latching arm so as to detachably lock both housings from each other when the male housing portion is mated with the female housing portion, further characterized in that the latching arm is provided with a groove which extends in the longitudinal direction of the latching arm and which has the locking member therein.
An embodiment according to the present invention will now be described with reference to the accompanying drawings in which:
FIG. 1 shows a perspective view of the electrical connector housing which is in the unmated position according to the present invention;
FIG. 2 shows a cross-sectional view taken along the line II--II of FIG. 1; and
FIG. 3 shows a cross-sectional view of the mated position of FIG. 2.
The electrical connector housing comprises a female housing portion 10 and a male housing portion 20 which is matable
REFERENCES:
patent: 3530424 (1970-09-01), Gregory
patent: 3829821 (1974-08-01), Derr et al.
patent: 3869191 (1975-03-01), Tolnar, Jr. et al.
patent: 4192568 (1980-03-01), Marks et al.
patent: 4431244 (1984-02-01), Anhalt et al.
AMP Incorporated
LaRue Adrian J.
McQuade John
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