Optical Connector Plug

• US 20110211792A1
• Filed: 01/25/2011
• Published: 09/01/2011
• Est. Priority Date: 02/26/2010
• Status: Active Grant

• Current Assignee: Japan Aviation Electronics Industry Limited
• Original Assignee: Japan Aviation Electronics Industry Limited
• Inventors: Koreeda, Yuichi, Katagiyama, Naoki, Hiroki, Yasutaka
• Granted Patent: US 8,376,628 B2
• Time in Patent Office: Days
• US Class Current: 385/60
• CPC Class Codes: G02B 6/3816 for use under water, high pressure connectors provisionally see G02B6/4428
• CPC Class Codes: G02B 6/3821 with axial spring biasing or loading means G02B6/3847 takes precedence
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/3849 using mechanical protective elements, e.g. caps, hoods, sealing membranes G02B6/3816 takes precedence; provisionally see H01R13/44
• 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 6/3891 Bayonet type
• CPC Class Codes: G02B 6/3893 Push-pull type, e.g. snap-in, push-on

Abstract

A stopper 50 is fixed to an optical connector 10, and the optical connector 10 is accommodated in an opening section 21 of a housing 20. The housing 20 is engaged with the stopper 50 so as to be displaceable with respect to the stopper 50 by a predetermined amount in a direction of inserting the optical connector 10 to a receptacle, and the stopper 50 is biased rearward by a coil spring 40 with respect to the housing 20. The free end of a clip piece 15 is placed on the free end of a latch piece 14 of the optical connector 10, and the free end of the clip piece 15 is placed on an inclination surface 23a at the front end of a concave section 23 formed on an inner wall surface of the opening section 21. At the time of detachment from the receptacle, the housing 20 is displaced in a direction to be pulled out against the biasing force of the coil spring 40. Accordingly, the clip piece 15 and the latch piece 14 are pushed down by the inclination surface 23a to release the lock of the latch piece 14. The detachment from the receptacle can be made in one motion.

Claims

1. An optical connector plug which houses an optical connector to be inserted and connected to an adapter and which is to be connected to a receptacle holding the adapter, the optical connector plug comprising:

a latch piece formed on a surface of the optical connector, having a front end in an inserting direction toward the adapter as a fixed end and a rear end as a free end, extending so as to depart gradually from the surface, and including at a middle portion a protrusion which protrudes on both sides in a width direction;

a clip piece formed on the surface, having a rear end in the inserting direction as a fixed end and a front end as a free end, the free end being placed on the free end of the latch piece;

a stopper arranged on a rear end side in the inserting direction of the optical connector and coupled and fixed with the optical connector;

a housing which engages with the stopper so as to be displaceable by a predetermined amount in the inserting direction with respect to the stopper and which accommodates the optical connector in an opening section at front in the inserting direction; and

a biasing member which biases the stopper rearward in the inserting direction with respect to the housing;

wherein the free end of the clip piece is placed on an inclination surface at a front end in the inserting direction of a concave section formed on an inner wall surface of the opening section;

the latch piece is, at a time of connection with the receptacle, pushed down by the protrusion being pressed by a pressing section provided to the adapter entering into the opening section, recovers to an original state by the pressing section passing through the protrusion, and is locked to the adapter by the protrusion being placed at an engaging section formed on a far side of the pressing section; and

at a time of detachment from the receptacle, the housing is displaced against a biasing force of the biasing member whereby the clip piece together with the latch piece are pushed down by the inclination surface to release a lock to the adapter, and, after release of the lock, the latch piece and the clip piece recover to original states by the stopper being displaced by the biasing force of the biasing member.

2. The optical connector plug according to claim 1, wherein the biasing member is a coil spring of which an inner diameter is greater than an outer shape of the optical connector including the latch piece and the clip piece when seen from the inserting direction.

3. The optical connector plug according to claim 1, wherein the housing is arranged with a sealing member which realizes a waterproof structure at the time of connection with the receptacle.

4. The optical connector plug according to any one of claims 1 to 3, wherein the optical connector is an optical connector standardized in IEC 61754-20.