Device for testing of cables provided with plugs

Claim 1

A device for testing cables provided with plugs having plug contacts, as to failures of plug contacts to be arrested in a certain position in a plug, the device comprising a coupling element provided with a plug receptacle for insertion of a plug and having a contour corresponding to that of the plug; means for fixing the plug in said coupling element after insertion of the plug; a plurality of spring contacts, each comprising a spring biased pin movable over a predetermined spring displacement path and extending through said coupling element to obtain access to said plug, said spring contacts provided in a number and with an arrangement corresponding to those of the plug contacts; a displacing member on which said spring contacts are mounted outside of said coupling element; means for moving said displacing member a predetermined distance toward said coupling element so as to move the pins of said spring contacts into the plug so that said spring contacts establish a contact with the plug contact through said pins under pressure and at the same time such one of the plug contacts which has an arresting failure is pushed out from the plug; means for moving said displacing element away from said coupling element a shorter distance than said predetermined spring displacement path and said predetermined distance moved by said displacement member so that upon movement away of said shorter distance, the contact of said spring contacts with those of the plug contacts which are properly arrested in the plug is maintained, while the contact of at least one of said spring contacts with the one plug contact which has an arresting failure in the plug is interrupted so that a gap is formed therebetween; and electrical means operative for detecting said gap between said at least one spring contact and the one plug contact and thereby indicating the arresting failure of the one plug contact.

Claim 2

A device for testing cables provided with plugs having plug contacts, as to failures of plug contacts to be arrested in a certain position in a plug, the device comprising a coupling element provided with a plug receptacle for insertion of a plug and having a contour corresponding to that of the plug; means for fixing the plug in said coupling element after insertion of the plug; a plurality of spring contacts, each comprising a spring biased pin movable over a predetermined spring displacement path and extending through said coupling element to obtain access to said plug, said spring contacts provided in a number and with an arrangement corresponding to those of the plug contacts; a displacing member on which said spring contacts are mounted outside of said coupling element; means for moving said displacing member a predetermined distance toward said coupling element so as to move the pins of said spring contacts into the plug so that said spring contacts establish a contact with the plug contact through said pins under pressure and at the same time such one of the plug contacts which has an arresting failure is pushed out from the plug; means for moving said displacing element away from said coupling element a shorter distance than said predetermined spring displacement path and said predetermined distance moved by said displacement member so that upon movement away of said shorter distance, the contact of said spring contacts with those of the plug contacts which are properly arrested in the plug is maintained, while the contact of at least one of said spring contacts with the one plug contact which has an arresting failure in the plug is interrupted so that a gap is formed therebetween; and electrical means operative for detecting said gap between said at least one spring contact and the one plug contact and thereby indicating the arresting failure of the one plug contact.

Claim 11

A device for testing cables provided with plugs having plug contacts, as to failures of plug contacts to be arrested in a certain position in a plug, the device comprising a coupling element provided with a plug receptacle for insertion of a plug and having a contour corresponding to that of the plug; means for fixing the plug in said coupling element after insertion of the plug; a plurality of movable spring contacts, each having a first end which extends through said coupling element to obtain access to said plug and provided in a number and with an arrangement corresponding to those of the plug contacts, said spring contacts each having a second end which faces away from said coupling element; a plurality of spring biased contact pins which are associated with said second end of each of said spring contacts in confronting relationship therewith and mounted stationarily and expandable in direction toward said spring contacts, each of said contact pins having a spring displacement path which is smaller than that of said spring contacts and being compressed by said spring contacts; and a displacing member on which said spring contacts are mounted outside of said coupling element, said displacing member being movable from an initial position in which said contact pins are compressed by said spring contacts and to another position toward said coupling element so as to move said spring contacts into the plug so that said spring contacts establish a contact under pressure with those of the plug contact which are properly arrested in the plug and remain stationarily, while at least one of said spring contacts associated with one plug contact which has an arresting failure and pushed out from the plug moves further so that a contact between said end of said at least one spring contact and an associated one of said contact pins is interrupted and a gap is formed therebetween; and electrical means operative for detecting said gap between said end of said at least one spring contact and said associated contact pin and thereby indicating the arresting failure of the one plug contact.

Claim 12

A device for testing cables provided with plugs having plug contacts, as to failures of plug contacts to be arrested in a certain position in a plug, the device comprising a coupling element provided with a plug receptacle for insertion of a plug and having a contour corresponding to that of the plug; means for fixing the plug in said coupling element after insertion of the plug; a plurality of movable spring contacts, each having a first end which extends through said coupling element to obtain access to said plug and provided in a number and with an arrangement corresponding to those of the plug contacts, said spring contacts each having a second end which faces away from said coupling element; a plurality of spring biased contact pins which are associated with said second end of each of said spring contacts in confronting relationship therewith and mounted stationarily and expandable in direction toward said spring contacts, each of said contact pins having a spring displacement path which is smaller than that of said spring contacts and being compressed by said spring contacts; and a displacing member on which said spring contacts are mounted outside of said coupling element, said displacing member being movable from an initial position in which said contact pins are compressed by said spring contacts and to another position toward said coupling element so as to move said spring contacts into the plug so that said spring contacts establish a contact under pressure with those of the plug contact which are properly arrested in the plug and remain stationarily, while at least one of said spring contacts associated with one plug contact which has an arresting failure and pushed out from the plug moves further so that a contact between said end of said at least one spring contact and an associated one of said contact pins is interrupted and a gap is formed therebetween; and electrical means operative for detecting said gap between said end of said at least one spring contact and said associated contact pin and thereby indicating the arresting failure of the one plug contact.