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Insulation displacement connection (IDC) type cable connector and a method for assembling a cable thereto
| Details |
Inventors: Miyazawa, Hideo; Andoh, Ikuhiro; Koyama, Hiromichi; Kobayashi, Mitsuru;
Assignee: Fujitsu Limited (Kawasaki, JP)
Primary Examiner: McGlynn; Joseph H.
Assistant Examiner:
Attorney, Agent or Firm: Staas & Halsey
An IDC type multi-conductor cable connector and method for assembling cable thereto. The cable connector has a plurality of contact terminals mounted in respective holes in a housing having a plurality of holes. The contact terminals each has a contact part provided at one end and an IDC type connection part provided at the other end thereof. The connector has means for temporarily holding the contact terminals in a position where the connection part of each terminal is exposed. The connector can be transported or delivered from the vendor in this state. A cable is assembled by IDC assembling to each exposed connection part. After the connection of the cables has been completed, the contact terminals are inserted further into their respective holes so that the connection parts become entirely covered. Such configuration eliminates the need for a cover, a component which is necessary for ordinary IDC type connector, and enables reduction in the size of the connector and in labor costs. Such housing may be used in modular form. By combining such modular housings, it is possible to construct various type of connectors merely by changing the case used to combine the modules. Such combined connectors are easy to wire at the interior portions of the cable connector. So, high packing density multi-contact connectors are provided. |
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DETAILED DESCRIPTION A general object of the present invention, therefore, is to provide a cable connector that is small in size and facilitates assembly of a cable therewith.
More precisely, it is an object of the present invention to provide a cable connector which has contact terminals mounted in a housing in a manner suitable for IDC assembling, and wherein after the cable is assembled to the connector, there is no need for the contact terminals to be covered using a special cover.
Another object of the present invention is to provide a method for assembling the cable and said cable connector.
A further object of the invention is to provide a modular housing for the cable connector to enable fabrication of a variety of complex cable connectors by combining the modules.
According to the present invention, the cable connector is composed of metal contact terminals and a housing holding the terminals in position.
First, each contact terminal is temporarily held by inventive spring action in a first position in the housing.
In the first position of the contact terminals, a connector part of the contact terminal for engaging the cable is exposed by the housing.
Thus, it is easy to press the cable into the connection part for connection thereto by IDC assembly.
Such state is called the pre-load state, and the process for setting the contact terminals in such first position is hereinafter referred to as pre-loading.
The cable connectors are supplied to the user in such pre-loaded state, therefore, the above mentioned problems, such as preparing the necessary number of the contact terminals for each connector, are avoided.
When the cable is pressed into the connection part, the blades formed on the contact terminal pierce through the insulation coating of the cable and bite the core wire of the cable to make electric contact therewith.
At the same time, the holding members provided on the contact terminal embrace the cable to tightly affix the cable to the contact terminal.
This is similar to the manner in which ordinary IDC assembling is accomplished
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