JP2560389Y2 - Optical receptacle with ferrule guide - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to an optical receptacle with a ferrule guide for smoothly inserting a ferrule into a sleeve of an optical receptacle.

[0002]

2. Description of the Related Art Next, the relationship between a conventional optical receptacle and a ferrule will be described with reference to FIG. 3 is an optical receptacle, and 2 is a ferrule. A housing 1A is provided outside the optical receptacle 1, and a male screw 1B is formed in the housing 1A. At the center of the optical receptacle 1 is a sleeve 1C, and the ferrule 2 to which the ferrule holder 2A is attached is inserted into the sleeve 1C of the optical receptacle 1.

[0003]

Even if the ferrule 2 is inserted into the sleeve 1C from the state shown in FIG. 3, it is difficult to insert the ferrule 2 and the sleeve 1C because the dimensional accuracy is high. The present invention provides an optical receptacle 1 by attaching a ferrule guide to the optical receptacle 1.
It is an object to easily insert the ferrule 2 into the sleeve 1C even if the center of the sleeve 1C is not aligned with the center of the ferrule 2.

[0004]

In order to achieve this object, according to the present invention, a female screw 3B formed on the inner surface of the end portion 3A and screwed to a male screw 1B provided on the housing 1A of the optical receptacle 1 is provided. Ferrule holder 2 formed following part 3A and attached to ferrule 2
A guide portion 3C to which A is inserted in contact with, and a guide portion 3D connected to the guide portion 3C in a tapered shape and having an inner diameter larger than the outer diameter of the ferrule holder 2A.
End 3 connected to guide 3D in a tapered manner
The ferrule guide 3 having E is attached to the optical receptacle 1.

[0005]

Next, the structure of the optical receptacle with a ferrule guide according to the present invention will be described with reference to FIG. Reference numeral 3 in FIG. 1 is a ferrule guide, and the others are the same as those in FIG. The ferrule guide 3 includes an end 3A, a guide 3C, a guide 3D, and an end 3E. A female screw 3B is formed on the inner surface of the end 3A, and the female screw 3B is screw-coupled to a male screw 1B provided on the housing 1A of the optical receptacle 1. The guide part 3C is formed following the end part 3A, and the ferrule holder 2A attached to the ferrule 2 comes into contact with the ferrule holder 2A. The guide portion 3D is connected to the guide portion 3C in a tapered shape, and has an inner diameter of the ferrule holder 2.
It is formed larger than the outer diameter of A. The end 3E is connected to the guide 3D so as to expand in a tapered shape.

Next, the operation of FIG. 1 will be described with reference to FIG. FIG. 2A is a view showing a state in which the ferrule 2 is about to be inserted into the optical receptacle 1 in which the ferrule guide 3 is screwed. FIG. 2A is a state diagram in which the tip of the ferrule 2 enters the guide portion 3D from the end 3E. In FIG. 2A, since the end 3E is spread like a trumpet, the center of the ferrule 2 is the center of the optical receptacle 1. Even if it is different from the center of the sleeve 1C, it is corrected by the guide 3D from the end 3E and proceeds.

FIG. 2C is a further ferrule 2 from FIG.
And the tip of the ferrule 2 advances inside the guide portion 3C. Since the space between the guide portion 3C and the guide portion 3D is formed in a tapered shape, the tip of the ferrule 2 advances in the guide portion 3C while the traveling direction is corrected.

FIG. 2D is a further ferrule 2 from FIG.
FIG. Ferrule holder 2A is a guide
Since it advances while contacting the portion 3C, the center of the ferrule 2 and the center of the sleeve 1C are aligned, and the tip of the ferrule 2 is inserted into the sleeve 1C of the optical receptacle 1.

[0009]

According to the present invention, the ferrule holder 2
A guide section 3C, which is inserted into contact with the cylindrical section A, is connected to the guide section 3C in a tapered shape, and has an inner diameter larger than the outer diameter of the ferrule holder 2A.
D and a ferrule guide 3 which has an end 3E connected to the guide portion 3D in a tapered shape and is screw-coupled to the optical receptacle 1, so that the ferrule guide 3 is attached to the optical receptacle 1.
Center of sleeve 1C of optical receptacle 1 and ferrule 2
Even if the center of the ferrule is not
C can be inserted.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an optical receptacle with a ferrule guide according to the present invention.

FIG. 2 is an operation explanatory diagram of FIG. 1;

FIG. 3 is an explanatory diagram showing a relationship between an optical receptacle 1 and a ferrule 2 according to a conventional technique.

[Explanation of symbols]

 Reference Signs List 1 optical receptacle 1A housing 1B male screw 1C sleeve 2 ferrule 2A ferrule holder 3 ferrule guide 3A end 3B female screw 3C guide 3D guide 3E end

Claims (1)

(57) [Scope of request for utility model registration] A male screw (1) formed on an inner surface of a first end (3A) and provided on a housing (1A) of an optical receptacle (1).
A female screw (3B) screw-coupled to the first ferrule (2A), and a first female screw (3B) screwed to the ferrule (2) attached to the ferrule (2). The first guide part (3C) is connected to the guide part (3C) in a form that expands in a tapered shape,
A second guide portion (3D) having an inner diameter larger than the outer diameter of the ferrule holder (2A); and a second end portion (3D) connected to the second guide portion (3D) in a tapered shape. An optical receptacle with a ferrule guide, characterized in that a ferrule guide (3) having a ferrule guide (3E) is attached to the optical receptacle (1).