OPTICAL CONTACT, A MULTICONTACT, AND A METHOD OF CONNECTING TWO OPTICAL CONTACTS TOGETHER

• US 20120099819A1
• Filed: 10/12/2011
• Published: 04/26/2012
• Est. Priority Date: 10/22/2010
• Status: Active Grant

• Current Assignee: Radiall SA
• Original Assignee: Radiall SA
• Inventors: VALENCIA, Laurent
• Granted Patent: US 8,961,033 B2
• Time in Patent Office: Days
• US Class Current: 385/54
• CPC Class Codes: G02B 6/3821 with axial spring biasing or loading means G02B6/3847 takes precedence
• CPC Class Codes: G02B 6/383 Hermaphroditic connectors, i.e. two identical plugs mating with one another, each plug having both male and female diametrically opposed engaging parts; electric hermaphroditic coupling H01R24/84, H01R13/28
• CPC Class Codes: G02B 6/3847 with means preventing fibre end damage, e.g. recessed fibre surfaces
• CPC Class Codes: G02B 6/387 Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
• CPC Class Codes: G02B 6/3875 Floatingly supported sleeves
• CPC Class Codes: G02B 6/3879 Linking of individual connector plugs to an overconnector, e.g. using clamps, clips, common housings comprising several individual connector plugs
• CPC Class Codes: G02B 6/3882 using rods, pins or balls to align a pair of ferrule ends
• CPC Class Codes: G02B 6/3885 Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type optical ribbon cable G02B6/4403, G02B6/448
• CPC Class Codes: G02B 6/3893 Push-pull type, e.g. snap-in, push-on
• CPC Class Codes: Y10T 29/49895 Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]

Abstract

An optical contact having a ferrule extending along a longitudinal axis, the ferrule having a front face facing an optical contact of complementary type when the optical contact is connected to the optical contact of complementary type, and a rear face opposite from the front face, and a body within which the ferrule is received in optionally movable manner, the body including at least one portion surrounding the outside of the ferrule around the longitudinal axis thereof, and at least one portion extending beyond the rear face of the ferrule towards the outside thereof.

Claims

1. An optical contact comprising:

a ferrule extending along a longitudinal axis, the ferrule having a front face facing an optical contact of complementary type when said optical contact is connected to said optical contact of complementary type, and a rear face opposite from said front face; and

a body within which the ferrule is received in optionally movable manner, the body including at least one portion surrounding the outside of the ferrule around the longitudinal axis thereof, and at least one portion extending beyond the rear face of the ferrule towards the outside thereof;

wherein the end of the body facing an optical contact of complementary type when said optical contact is connected to said optical contact of complementary type includes at least one portion extending beyond the front face of the ferrule towards the outside thereof, for any position of the ferrule inside the body, and by the fact that said end of the body also includes at least one portion beyond which the front face of the ferrule extends.

2. A contact according to claim 1, the ferrule being mounted inside the body to be movable along an axis parallel to its longitudinal axis.

3. A contact according to claim 2, including a spring mounted in the body and having an end that presses against the rear face of the ferrule.

4. A contact according to claim 2, the ferrule having a rectangular cross-section and each side of the ferrule including a shoulder that comes into abutment against a shoulder of the body to define an abutment against forward movement of the ferrule inside the body.

5. A contact according to claim 1, the contact being of the male type and including at least one pin and a housing for receiving said pin, the pin being arranged parallel to the axis of the ferrule when it is mounted in said housing, the pin extending beyond the front face of the ferrule towards the outside thereof over a second distance, said portion of the body extending beyond the front face of the ferrule including at least one arm extending beyond the front face of the ferrule towards the outside thereof over a first distance that is greater than the second distance.

6. A contact according to claim 5, said portion extending beyond the front face of the ferrule including two arms, each of said arms extending a wall of the body that is in contact with a side of the ferrule.

7. A contact according to claim 1, the body being made up of at least two parts, each of said parts including means enabling a part to be releasably assembled with another part, said means being configured in such a manner that assembly and disassembly of said parts take place by exerting a force on the parts perpendicularly to the longitudinal axis of the ferrule.

8. A contact according to claim 7, said portion of said end of the body that extends beyond the front face of the ferrule being carried by only one of said parts of the body, and said portion of said end of the body beyond which the front face of the ferrule can extend being carried by another one of said parts forming the body.

9. A contact according to claim 7, the body being made up of two parts, and each part including a cutout in a side face such that when the two parts are assembled together, the cutouts face each other.

10. A multicontact connector including a unit in which at least one contact according to claim 1 is received.

11. A method of connecting two optical contacts together, one of the two optical contacts being of the male type and including at least one pin and a housing for receiving said pin, the pin being arranged parallel to the axis of the ferrule when it is mounted in said housing, the pin extending beyond the front face of the ferrule towards the outside thereof over a second distance, said portion of the body extending beyond the front face of the ferrule including at least one arm extending beyond the front face of the ferrule towards the outside thereof over a first distance that is greater than the second distance, and the other of the two optical contacts being according to claim 1, being of female type, and having a ferrule including at least one housing for receiving a pin of a male-type contact;

the method comprising the following steps;

a first alignment step in which at least one side of the ferrule of the female-type contact is caused to slide against at least one arm of the body of the male-type contact; and

a second alignment step in which at least one pin of the male-type contact is inserted into said housing of the ferrule of the female-type contact.