JPS58145907A - Optical connector - Google Patents

Abstract

PURPOSE:To improve workability and to reduce the number of parts by forming plugs continuously from a metallic strip by blanking and staking only. CONSTITUTION:Patterns of plugs 8 are blanked continuously from a metallic strip, for example, an extremely thin tinned brass strip. Patterns over the entire part of the plugs including not only fine hole parts but also spring pieces 11 and annular staking parts 10 are obtained simultaneously by lancing, blanking, staking, etc. Such patterns are formed with plug bodies, spring pieces, staking parts 10, etc. in the next staking stage, and optical fiber cores 2 are inserted and positioned continuously and automatically in the plugs with an automatic optical fiber inserting machine. In succession, the parts 10 of the plugs are staked and mounted on optical fibers 1. Workability is thus improved and the number of part is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to optical connectors used for party data links and the like.

Conventionally, as part of this IIO system, a terminal was inserted and a pair of plugs were connected to each other (composed of a coil spring and a synthetic resin that held the plug part together). There is a good one consisting of a housing and a nokjinda middle yap fixed to the housing so as to support the rear end of the coil spring, and No. 111#i shows the mail part of such a former Konekume.

1st ai! Inside, l is party fiber % 2 is jt7 aino (core @, 3 is plug, 4 company coil spring, 5 is fill spring installed in plug 3 4 stone/(, 6 is mail housing, 7 category) 1 Uzing Conventional plugs 3, as shown in Figure 1, each representing a cap, are made by cutting a metal rod.The axis misalignment in the party connectors of the party connectors is generally #C several μ- to several + S. Since the centering of the pore must be within the range of the plug, the variation in pore diameter is severely limited when inserting and fixing the core of such a plug. Since the machining precision is strictly required, the workability is poor and the walk rate is also poor.Also, there are many m parts, which has the disadvantage of high cost.Furthermore, the fixation of the 1-gen 7-eyeper and plug is difficult. Since adhesive was used, it was a tedious task to make the noise of the gluing process while aligning the center.

SUMMARY OF THE INVENTION The present invention addresses the above-mentioned drawbacks of the prior art and has one object to provide an original connector that is easy to manufacture and has a small number of parts. The original connector of the present invention that achieves this zero condition is a single fiber core with a pore at the tip into which a single 7-iper core wire is inserted! The part covered with the coating, that is, the nuchal-shaped tightening part at the proximal end through which the original fiber is inserted and crimped, and the spring piece that protrudes from the proximal end and is folded back toward the distal end, are added to the press terminal to form -S. It consists of a pair of plugs of the same shape, each of which has a shape similar to the other, and a pair of plug housings that have fitting parts that fit into each other and into which each plug is inserted.One plug housing locks the spring piece of the plug in a compressed state. The fitting portion of the plug housing that fits into the circumference of the other plug housing has a locking S on the inner circumference, and the fitting portion of the plug housing that fits into the circumference of the other plug housing is such that the hole portion of the plug to be inserted into the plug housing is inserted halfway, and both plug housings The moat-like structure is such that the pore portion of the other plug is a cylindrical portion into which the remaining iBK is inserted.

An embodiment of the original connector of the present invention will be described with reference to the drawings.

FIG. 2 is a cross-sectional cutaway view of an original connector of original fibers according to the present invention. The pair of plugs 8% 8 of the connector according to the invention shown in FIG. 2 are of identical construction. The axis of the optical fiber core wire 2 fixedly held by both the plug housings 8.8 is aligned by fitting the male and female plug housings 12°130 [114, 14'] into the cylindrical fitting of the female housing 13. The pore 11s9 of the plug 8 in the mail housing 12 is fitted from the end of the joint 14'**, and the pore 9 of the plug 8 in the female housing 13 that has already been fitted and the fitting part 14 ′ is performed by butting at approximately the center. This abutment is held by cutting the side wall of the plug 8, raising the spring piece 1-1, and folding it back from the rear to the front.
and the funnel-shaped lock of the plug housing that supports it [1
This is done by applying force to push out the plug 81C# in the direction of the plug 81C#. In this way, coaxial maintenance and spacing between the jt7 eyeper cores @2 are achieved.

Plug 8 to each plug housing 12', '1''3
The insertion of the 8° is carried out as follows. At the rear end of each of the male and female plug housings 12 and 13, there is a funnel-shaped tip 111 toward the tip of the plug housing.
J) An enlarged insertion opening is formed at the tip), and the enlarged end of this funnel-shaped insertion opening is locked to the spring piece 11 l115.
It becomes.

Then, the plug 8 is pushed in beyond the locking sls while deforming the spring piece 11 of the plug 8. In the female housing 13, the shoulder of the pore s9 of the plug 80 is placed on the shoulder of the inner hole of the cylindrical fitting 1114'40.The pore 1119 of the plug 8 is fitted into the cylindrical fitting lB14' circle.

In this case, the tip of the pore s9 of the plug 8 is the cylindrical fitting part 14.
'The dimensions reach the center of the bald area. In this O state, the spring piece 11 locks the female housing 13 (1115).
, and the elasticity of the spring piece 110 pushes the putida 8 toward the distal end.

The plug 8 is inserted into the mail housing 12 through the fitting 814 at the tip of the mail housing 12.

It may be inserted from the rear of the housing as in the case of female housing.

Spring piece 11 and locking 111! ! The relationship between the forces acting on the plug 8 is shown in FIG. In the third story, the force Fttf acting on the contact point between the spring piece 11 and the lock 1115 is decomposed into an axial force Fs and a force F3 in a direction perpendicular to this. The plug 8 receives a similar force at its connecting end due to a reaction force F4 to FsK.

Therefore, if the bladder is defined as 11 km and an external force of F acts on the companion fiber l in the longitudinal direction of the fiber.

ζOf%lO putuda 1l pla! Spring piece 11 fil 2
At the ninth point, F≧2Fal, the plug 8 is crimped into the fitting s14' of the housing.

The engagement between the spring piece 11 and the lock 1B15 will be the same as described below. As shown in the #I4 diagram, there is a hole 11&t on the side of the spring piece 11 and a protrusion 15 on the side of the locking part 15 in the joint area between the spring piece 11 and the locking part s15.
When the spring pieces 11 and the locks 1 are installed, the spring pieces 11 and the locks 1
11$ and O engagement can be made more complete.

The attachment and detachment of the mail housing 12 and the female housing 13 is performed by a locking device t (lili 4 not shown).

The original connector of the present invention is made by continuous press terminal processing of 1 piece and 8 pieces, and its manufacturing process is as follows. The metal strip 41Pl is made by successively punching out nine 80-meter original shapes from a thin brass strip 11 plated with tin. Original shape punched Kfi tsutepan.

At the same time, cut the original shape of the entire plug including the spring piece 11 and the reward caulking lO to hold the narrow fi part 9.

Obtained by punching, caulking, etc. The mobara carvings, which are continuously punched out in this way, are connected by the uncut parts of the metal band plates and are arranged at equal intervals. The plug body, the pore part 9, the spring piece 11. The caulking part 10 and the caulking part 10, the plug body and its pore part 9-
The size of the pore into which the original fiber core 112 is inserted is continuously determined by machining with each jig. Next, the fiber core wires, which are arranged at equal intervals according to the uncut portions of the band and processed by peeling off the terminal cover in the Nine Puchida 8, are sequentially, continuously and automatically inserted into the original fiber automatic insertion machine. Position method 6 next Prada Kajime Iku 1o
is plated on the original fiber 1, the attachment of the fiber 1 to the plug 8 is carried out, and the plug 8 is separated from the strap.

The only accessory of the original connector of the present invention is the housing 12.degree. 13, and the number of component parts is extremely small compared to the conventional connector.

The plug of the connector of the present invention is formed only by continuous punching and staking from a metal strip, and the manufacturing process is continuous and automatic, so there is no need to sharpen the metal rod as in the conventional method. broth.

Surface finishing and drilling and other work is done without any additional work.+
The processing of the seeds is incomparable.

In addition, only by caulking the pores of the plug with a precision of 4, the workability was significantly reduced to within the required precision range. Fixing Oku, Kaku7 Aipa and Prada is freed from the hassle of adjusting centering and using adhesive. Naturally, manufacturing costs have also been significantly reduced. Furthermore, the number of parts is extremely small, which provides significant structural and manufacturing advantages.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the structure of the mail side of a conventional original connector, 11111g1. FIG. 3 is a diagram illustrating the panel acting on the prada 4&, and FIG. 4E is an explanatory diagram illustrating another example of the engagement of the spring piece and the engaging IE section. lyJ [11th year. l is party fiber. 2 companies Hikari 7 Aipa core il. 8 is the plug. 9 line pore a. 10 is circular caulking II. 11 is the spring piece, 11m is its hole. 12 is mail housing. 13 is female housing. 14 and 14' are fitting parts. 15 Road locking part. 1! ia is its protrusion. Patent Applicant Sumitomo Electric Industries Co., Ltd. Agent Masu Keishi Party Shi Shibu (and 1 other person)

Claims (1)

[Claims] A pore at the tip into which the party 7 Aipa core is inserted. The original fiber core lsK coating is pressed into a thick tightening part at the proximal end through which the fiber is inserted and crimped, and the spring piece which protrudes to the proximal end and is folded back to the distal end is pressed into a sintered material. a pair of plugs having the same shape (by integral formation);
It consists of a pair of plug housings that have fittings S that fit into each other and into which each plug is inserted, and has a locking part on the inner periphery that locks the spring piece of the plug housing in the compressed shape 11. However, in the fitting part of the plug housing that fits into the circumference of the other, the pore part of the plug to be inserted into the plug housing is inserted halfway, and the fitting pattern of both plug housings is such that The original connector has a structure in which the pore of the plug is a cylindrical part into which the remaining IIK is inserted.