Electrical connectors – For interfitting with uninterrupted support rail or...
Patent
1989-06-07
1990-11-06
Desmond, Eugene F.
Electrical connectors
For interfitting with uninterrupted support rail or...
H01R 2512
Patent
active
049682628
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a connection device, particularly one cooperating with a current rail.
Connection devices of this kind are already known, see e.g. applicant's Swedish patent No. 8401925-6. Said known connection device is designed to be placed in a current rail having a substantially C-shaped cross section and being provided with flange-like portions turned towards a longitudinal hole and on the inner surfaces of which electric conductors are arranged. Said known connection device can be inserted in an arbitrary place in said longitudinal hole by means of a list-shaped insertion part and fastened there by means of an outwardly revolving contact and locking bar, provided with electrical contact pins. In order to additionally explain this already known technique such a known connection device is described in the following, with reference to FIG. 1.
It is true that said known connection device on the whole is advantageous and functions satisfactorily, but it is a primary object of the present invention to, as regards attachment and removal, develop said known connection device in such a way, that said measures can be performed quickly, simply and reliably, without using loose parts and with a limited consumption of material as well as without a complicated combination of a multitude of structural parts.
Another object of the invention is to provide a connection device, in which a change of phase indication is accomplished simultaneously with and in the same work operation as the phase selection. Additional objects of the invention is to provide a connection device having a simple and rugged construction and low production and assembly costs.
In order to attain these objects a connection device of the above-described kind is characterized mainly by the particular features described hereinafter.
Additional advantageous features and advantages of the present invention are set forth in the ensuing description, which relates to a non-limiting embodiment of a connection device according to the invention, reference being made to the enclosed partly schematical drawings, in which:
FIG. 1 is a view of an already known connection device, inserted in a current rail;
FIG. 2 is a perspective view from the front of a connection device according to the invention;
FIG. 3a is a perspective view from behind of the connection device according to the invention, showing its phase selector device;
FIG. 3b is a view, which corresponds to FIG. 3a, but the contact and locking bar is pulled out and pushed inwardly and the lid is closed over the phase selector device;
FIGS. 4-7 are various views of the connection device, viewed from behind, from below, from the front and from above;
FIG. 8 is an end view of the connection device inserted in a current rail;
FIG. 9 is an exploded view of the connection device according to the invention;
FIG. 10 is a detailed view of the contact and locking bar of the connection device having an appertaining eccentric arm in its lowered position;
FIG. 11 is a view, which corresponds to FIG. 10, with the eccentric arm it its elevated position;
FIGS. 12a-d are four different views, which show, how the eccentric arm cooperates with the sliding lid of the connection device;
FIG. 13 is a detailed view of the phase selector device in FIG. 3a, with the phase selector unit removed;
FIG. 14 is a view, which corresponds to FIG. 13, with its phase selector unit inserted; and
FIGS. 15 and 16 are two views, which show the fastening of the sliding lid.
FIG. 1 shows a known connection device 10 comprising a shell 11 having a front piece 12 and a back piece 14 having an insertion part 16 as well as a contact and locking bar 18. The connection device is inserted into a C-shaped current rail 20 through a longitudinal hole on its divided face 22. On the rear or inner surface of the face profiles 24 of an insulating material are disposed having, embedded in the same, conductors in the form of double-folded sheet profiles. The rear surface of the current rail is provided with hook-shaped projections 26, used e
REFERENCES:
patent: 3686614 (1972-08-01), Hyrylainen
patent: 3718886 (1973-02-01), Hoffmeister
patent: 3973818 (1976-08-01), Soquenne
patent: 3993385 (1976-11-01), Seger
patent: 4494808 (1985-01-01), Widell et al.
Bergman Nils-.ANG.ke
Widell Harald
Widell Jan
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