KR101469804B1 - Optical connector for assembling in the field - Google Patents

Abstract

The present invention relates to an optical connector which can be assembled at a site. The objective of the present invention is to provide the optical connector capable of mutually connecting optical fiber even though there is no separate assembly jig and providing stable binding force for the optical fiber. The optical connector which can be assembled at a site according to the present invention comprises a connector body and a splice unit. The connector body has a hollow part which is penetrated in both sides, an opening which is formed on the upper part thereof to insert or separate a cover, and a push button which is formed to be integrated in the lower part of the opening and can be moved into the hollow part. And, the splice unit includes a splice member which is installed to be inserted into the hollow part of the connector body, and the cover which is coupled to the splice member to be detachable through the opening of the connector body, wherein the cover can be separated from splice member by pushing up the cover coupled to the splice member.

Description

Technical Field [0001] The present invention relates to an optical connector for assembling in the field,

The present invention relates to an optical connector, and more particularly, to a field-assembled optical connector capable of interconnecting optical fibers with only an optical connector, even if a separate assembly jig is not provided in the field.

In general, the optical connector is designed to minimize the optical loss through the epoxy bonding and the end polishing process by aligning the ferrule inserted with the core of the optical fiber so that the center axis of the optical fiber is matched by the operator at the factory in the optical fiber cut according to the predetermined parameter. It has been used to install optical cable by attaching optical connector to the finished product type called patch cord. For example, LC, ST, FC and SC optical connectors are used.

Since the patch cord is manufactured at the factory in the form of a finished product with a certain length according to the predetermined parameters, it is possible to use the optical communication equipment and the optical fiber cable in the optical splitter, There is a limit in the length of the connection between the optical splitter and the optical transmission device and the connection between the optical transmission devices.

Field-assembled optical connectors have been used in which optical connectors provided on both sides of a patch cord are modified into an assembled type so that they can be easily assembled in the field and patch cords of a desired length can be obtained.

Korean Patent Publication No. 2009-0065485 discloses a field-connectable optical fiber connector having a splice element. The disclosed connector includes a housing configured to mate with a receptacle, and a collar body disposed within the housing, wherein the collar body includes a fiber stab disposed within a first end portion of the collar body. The fiber stub includes a first optical fiber. The first optical fiber is mounted in the ferrule and has a first end and a second end adjacent the end face of the ferrule. The collar body further includes a mechanical splice device disposed within the splice device receiving portion of the collar body. A mechanical splice device includes a collar body configured to splice a second end of a fiber stub to a second optical fiber, a fiber jacket having a collar body within the housing and for clamping a jacket portion that, in operation, A backbone including a clamping portion and a boot that can be attached to a portion of the backbone and operate the fiber jacket clamping portion of the backbone when attached to the backbone.

Although the optical connector constructed as described above can be assembled in the field, the mechanical splice device has a structure for clamping the optical core using clamping force, so that the coupling force is relatively weak and the coupling is not smooth.

Also, an optical connector modified to an assembled type is disclosed in Korean Patent Registration No. 10-0507543. The optical connector includes a housing, a plug movably inserted and fixed to the housing, a core aligning member movably inserted into the plug, a fixing member inserted into and fixed to the plug to surround a part of the core aligning member, An optical fiber inserted into the fixing member and engaged with the core aligning member so as to be fixed to the core aligning member and drawn out from the protective covering, And a fastening member for fastening the optical fiber inserted from the protective cover to the optical fiber connecting member by fastening the optical fiber into a clip shape.

This optical connector is difficult to accurately insert the core of the optical fiber into the core insertion hole of the core aligning member because the core of the optical fiber drawn into the optical fiber connecting member is fitted into the core aligning member without separate guiding means. That is, it was very difficult to accurately insert the core having a diameter of about 125 mu m into the core insertion hole having a diameter corresponding to the diameter of the core without any other guiding means. Therefore, there is a problem that it is difficult to accurately connect the core in the core insertion hole of the core aligning member.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a field-assembled optical connector in which two optical fibers to be connected can be accurately connected while assembling an optical connector,

Another object of the present invention is to provide a field-assembled optical connector capable of easily separating a cover fitted to a splice member with only an optical connector, even if a separate assembly jig is not provided in the field.

It is still another object of the present invention to provide a field-assembled optical connector capable of stably fixing two optical fibers inserted into a splice member by increasing a coupling force between a splice member and a cover.

In order to achieve the above object, the present invention provides a field-assembled optical connector including a connector body and a splice unit. The connector body has a hollow portion penetrating to both sides thereof. An opening is formed at an upper portion of the connector body so that the cover can be inserted or removed. A push button movable into the hollow portion is integrally formed under the opening. The splice unit includes a splice member inserted into a hollow portion of the connector body and a cover detachably coupled to the splice member through an opening of the connector body. At this time, the cover coupled to the splice member pushes the pushbutton upwards so as to excite the splice member.

In the field-assembled optical connector according to the present invention, the splice member includes a ferrule and a core mounting portion. The first core of the first optical fiber is supported on one side of the ferrule. Wherein the core mounting portion is formed with a core insertion hole in which the ferrule is coupled to one side and a second core of the second optical fiber is inserted into the other side and the first and second cores of the first and second optical fibers are connected to the core insertion hole, And a plurality of fitting holes are formed on both sides of the V-shaped groove portion.

In the field-assembled optical connector according to the present invention, the cover includes a cover body and a plurality of fitting legs. The cover body covers the core mounting portion formed with the V-shaped grooves. The plurality of fitting legs are formed in a lower portion of the cover body so as to correspond to the plurality of fitting holes, respectively, and are inserted into the plurality of fitting holes to attach the cover body to the core mounting portion formed with the V- And the end portions of the first and second cores supported on the V-shaped groove are held in close contact with the cover body.

In the field-assembled type optical connector according to the present invention, the plurality of fitting legs include a plurality of first fitting legs arranged on one side of the lower portion of the cover body, and a second fitting leg on the other side of the cover body facing the first fitting leg And a plurality of second fitting legs arranged in the second opening. Wherein a width of the first and second fitting legs increases as they are lowered from the cover body, and a width of a lower portion of the first and second fitting legs is larger than a width of the V- It is wider than the width between the insertion holes.

In the field-assembled type optical connector according to the present invention, the lower end of each of the plurality of fitting holes is formed with a locking protrusion which is inclined outward with respect to the inner peripheral face of the fitting hole. Each of the plurality of fitting legs of the cover has an engaging hook formed on the outer side of the lower portion so as to engage with the engaging jaw to correspond to the inclined surface of the engaging jaw.

In the field-assembled type optical connector according to the present invention, a pair of the outside of the plurality of fitting legs of the cover has protrusions extending under the coupling hook. At this time, the push button of the connector body is formed at a position corresponding to the protruding portion, and the protruding portion protruding beneath the fitting hole of the core mounting portion is pushed upward to separate the cover attached to the core mounting portion from the core mounting portion.

In the field-assembled optical connector according to the present invention, the fitting leg formed with the protrusion is formed on the side opposite to the side to which the ferrule is coupled. The push button is formed on the connector body opposite to the side to which the ferrule is coupled.

In the field-assembled type optical connector according to the present invention, the push button includes a push plate protruding into a push space connected to the hollow portion at a lower portion of the connector body, And a pair of pushing protrusions formed to protrude toward the protrusions of the protrusions.

The field-assembled optical connector according to the present invention may further include a housing coupled to the connector body and having an opening through which the push button is exposed.

The field-assembled optical connector according to the present invention may further include a clamping member, a housing, and a boot. The clamping member is coupled to the connector body to elastically support the splice unit with respect to the housing and includes a clamping unit. The housing is coupled to the connector body to support the splice unit, and supports the ferrule of the splice unit so as to protrude from the front surface. And the boot is engaged with the clamping member to provide a clamping force of the jacket portion of the second optical fiber.

Since the push button for lifting the cover is integrally formed at the lower portion of the connector main body according to the present invention, even if a separate assembly jig is not provided in the field, the cover fitted to the splice member can be easily You can excite it.

In addition, since the engaging hook is formed in the fitting leg formed at the lower portion of the cover so that the engaging hook can be caught by the inclined engaging jaw, the engaging hook is formed between the splice member and the cover, It is possible to stably fix the two optical fibers inserted into the splice member by increasing the coupling force.

In addition, the cover is formed such that the width of the fitting legs increases as the fitting legs formed on both sides of the lower portion are lowered. As a result, the fitting leg inserted into the fitting hole of the splice member is brought into tight contact with the fitting hole, and the coupling hook passing through the fitting hole is caught by the inclined hook. Therefore, A downward force is applied along the photograph surface. Therefore, the coupling force between the splice member and the cover can be improved.

1 is an exploded perspective view of a field assembly type optical connector according to an embodiment of the present invention.
2 is a partial cross-sectional view showing the field-assembled optical connector of Fig. 1;
3 is an exploded perspective view showing the splice unit of FIG.
4 is a side view showing the cover of the splice unit of Fig.
5 is a sectional view taken along line 5-5 of Fig.
Fig. 6 is a partially cutaway perspective view showing the push button of the connector body of Fig. 1;
FIG. 7 is a cross-sectional view of the field-assembled optical connector of FIG. 1 assembled.
FIG. 8 is a cross-sectional view showing a state in which the cover coupled to the splice member by the pushing of the push button of FIG. 1 is excited from the splice member.

In the following description, only parts necessary for understanding the embodiments of the present invention will be described, and the description of other parts will be omitted so as not to obscure the gist of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a field assembly type optical connector according to an embodiment of the present invention. 2 is a partial cross-sectional view showing the field-assembled optical connector of Fig. 1;

Referring to FIGS. 1 and 2, a field-assembled optical connector according to the present embodiment includes a connector body and a splice unit. The connector body has a hollow portion penetrating to both sides thereof. An opening is formed in an upper portion of the connector body so that the cover can be inserted or removed. A push button movable downward into the hollow portion is integrally formed at the lower portion of the opening. The splice unit includes a splice member inserted into the hollow portion of the connector body and a cover detachably coupled to the splice member through the opening of the connector body. At this time, the cover coupled to the splice member pushes the pushbutton upwards to lift the splice member.

The field-assembled optical connector according to the present embodiment may further include a clamping member, a housing, and a boot.

The construction of the field-assembled optical connector according to the present embodiment will be described in detail as follows.

The housing 71 is formed with an opening 73 to which the connector body 20 is coupled and in which the push button 23 is exposed. The housing 71 is coupled with the connector body 20 to support the splice unit 40 and supports the ferrule 31 of the splice unit 40 so as to protrude from the front surface. The ferrule 31 exposed to the outside of the housing 71 can be protected by the protective cap 90.

The connector main body 20 is coupled with the clamping member 60 and the fastening means 80 to support the splice unit 40. The fastening hollow part 21, And an opening 22 communicating with the hollow portion 21 is formed on the outer circumferential surface. A push button (23 in Fig. 6) is formed on the lower portion of the connector body 20, and the push button 23 will be described later.

3 to 5, the splice unit 40 includes a first core 101 of the first optical fiber 100 supported by the ferrule 31 and a second core 101 of the second optical fiber 200 supported by the ferrule 31. [ (201). 3 is an exploded perspective view showing the splice unit 40 of FIG. 4 is a side view showing the cover 41 of the splice unit 40 of Fig. And Fig. 5 is a sectional view taken along line 4-4 of Fig.

The splice unit 40 has a core mounting portion 34 formed on the outer circumferential surface of the splice member 30 and having a bottom surface located on the center portion of the splice member 30 in the longitudinal direction. A bottom surface of the core mounting portion 34 has a smooth surface and a bottom surface of the core mounting portion 34 has a V shape for splicing the core 101 of the first optical fiber 100 and the second core 201 of the second optical fiber 200, And a grooved portion 33 is formed. The V-shaped grooves 33 have a V-shaped cross section at a direction perpendicular to the length. The width of the V-shaped grooves 33 is formed to be relatively smaller than the diameters of the first and second cores 101 and 201, It is preferable that the two cores (101) and (201) can be placed on the V-shaped groove (33). An extension portion 35 is formed at a portion corresponding to the ferrule 31 of the splice member 30. A core insertion hole 32 extending from the V-shaped groove 33 is formed in the extension portion 35 . It is preferable that the core insertion hole 32 is substantially equal to the diameter of the first core 101 so that no clearance is generated during insertion. The opening of the core insertion hole 32 formed in the extension portion 35 is preferably formed with a funnel-shaped core guide portion 32a so that the insertion of the second core 201 can be smoothly performed. It is preferable that the entrance side of the V-shaped groove 33 corresponding to the core insertion hole 32 is expanded toward the core insertion hole 32 so that the insertion of the second core 201 can be smoothly performed.

In the core mounting portion 34, the cover 41 for holding the first and second cores 101 and 201 is coupled by the engaging member 50 when the first and second cores 101 and 201 are connected. The lower surface of the cover 41 is formed in a plane parallel to the bottom surface of the core insertion portion 34 so as to press the first and second cores 101 and 201 supported by the V- But is not limited thereto.

The coupling member 50 is for coupling the splice member 30 and the cover 41. The coupling member 50 is formed with fitting holes 51 on both sides of the V-shaped groove 33 formed in the splice member 30, At both sides of the cover 41 corresponding to the hole 51, coupling hooks 52 are formed on the fitting legs 53 inserted into the fitting hole 51, respectively. The fitting leg 53 has a length sufficient to engage with the end side edge of the fitting hole 51 formed in the splice member 30. [

At this time, a plurality of fitting holes (51) are formed on both sides of the V-shaped groove (33).

The plurality of fitting legs 53 are formed on the lower surface of the cover 41 and correspond to the plurality of fitting holes 51, respectively. The cover 41 includes a cover body 43 and a plurality of fitting legs 53. The cover body 43 covers the core mounting portion 34 on which the V-shaped grooved portion 33 is formed. The plurality of fitting legs 53 protrude from the bottom of the cover body 43 so as to correspond to the plurality of fitting holes 51, respectively. The plurality of fitting legs 53 are inserted into the plurality of fitting holes 51 to engage the cover body 43 with the core mounting portion 34 in which the V-shaped groove portions 33 are formed, And the ends of the supported first and second cores (101, 201) are held in close contact with the cover body (43).

The plurality of fitting legs 53 include a plurality of first fitting legs 53a and a plurality of second fitting legs 53b. The plurality of first fitting legs 53a are arranged on one side of the lower portion of the cover body 43. [ The plurality of second fitting legs 53b are arranged on the other side of the lower portion of the cover body 43 facing the first fitting legs 53a.

The width a between the first and second fitting legs 53a and 53b is set so that a plurality of the insertion legs 53 can be inserted into and fit into the plurality of insertion holes 51, (43). The width b of the lower portion of the first and second fitting legs 53a and 53b is wider than the width of the fitting holes 51 located on both sides of the V-shaped groove portion 33 as a center.

The lower ends of the plurality of fitting holes 51 are formed in the inner peripheral surface of the fitting hole 51 so that the plurality of fitting legs 53 can be stably held in the plurality of fitting holes 51 A locking protrusion 54 is formed to be inclined outwardly with respect to the center axis. Each of the plurality of fitting legs 53 is formed so that the engaging hook 52 engaged with the engaging protrusion 54 on the outer side of the lower portion corresponds to the inclined surface of the engaging protrusion 54.

A slanting hook 54 is formed at the lower portion of the fitting hole 51 formed in the splice member 30 and the slanting hook 54 is engaged with the slanting hook 54 formed at the lower portion of the cover 41 The connecting hooks 52 are formed on the legs 53 so that the coupling force between the splice member 30 and the cover 41 is increased so that the first and second optical fibers 100 inserted into the splice member 30 200 can be stably fixed.

In addition, the cover 41 is formed such that the width of the insertion legs 43 increases as the insertion legs 53 formed on both sides of the lower portion are lowered. As a result, the fitting legs 53 inserted into the fitting holes 51 of the splice member 30 come into tight contact with the fitting holes 51 and the coupling hooks 52, which have passed through the fitting holes 51, The fitting leg 53 inserted into the fitting hole 51 is forced downward along the inclined surface of the engaging protrusion 54. As a result, Therefore, the coupling force between the splice member 30 and the cover 41 can be improved.

A pair of fitting legs 55 (hereinafter referred to as a "wearing fitting leg") located on the outer side of the plurality of fitting legs 53 has a protruding portion 57 extending below the engaging hook 52. When the wear-out fitting leg 55 is engaged with the fitting hole 51, the projection 57 protrudes downward from the fitting hole 51.

2, 3, and 6, the push button 23 of the connector body 20 is formed at a position corresponding to the protrusion 57, and the push button 23 of the connector body 20 is inserted into the fitting hole 51 The cover 41 coupled to the core mounting portion 34 can be spaced apart from the core mounting portion 34. As shown in FIG. 6 is a partially cutaway perspective view showing the push button 23 of the connector body 40 of FIG.

The disengagement fitting leg 55 is formed on the side opposite to the side to which the ferrule 31 is coupled and the push button 23 is formed on the connector main body 20 on the side opposite to the side to which the ferrule 31 is coupled.

The push button 23 includes a push plate 25 protruding into a push space 24 connected to the hollow portion 21 at a lower portion of the connector body 20 and a pair of And a pair of pushing protrusions 26 protruding toward the protrusions 57 of the wear-out fitting leg 55 and pushing the protrusions 57. Although the example in which the push button 23 is provided with the pushing protrusion 26 is described in this embodiment, it may be omitted.

The push button 23 grasps the first optical fiber 100 coupled to the ferrule 31 side when the splice unit 40 is lifted or when the coupling hook 52 and the fitting hole 51 are coupled, The connector body 20 on the side corresponding to the core insertion hole 32 is provided in the pushing space 24 so that the movable core 201 can form a flow space that can be moved along the V-shaped groove 33. Of course, one side of the push button 23 is connected to the connector body 20 and has a structure that protrudes into the pushing space 24 and can move into the hollow part 21 connected to the pushing space 24.

Therefore, the field-assembled optical connector 10 according to the present embodiment is provided in a form that the cover 41 is coupled to the splice member 30, and when the first and second optical fibers 100 and 200 are connected, The connection operation of the first and second optical fibers 100 and 2000 can proceed after the cover 41 coupled to the splice member 30 is lifted by the push button 23 formed on the main body 20. [

Since the push button 23 is formed integrally with the connector body 20 in this way, it is not necessary to separately provide a jig for lifting the cover 41 in the splice member 30. [

The clamping member 60 is elastically biased in the direction in which the ferrule 31 protrudes from the connector unit 20 and the splicing unit 40 on which the ferrule 31 is mounted. The clamping member 60 is inserted into the extension 35 and includes a coupling portion 62 for supporting a spring 65 supported by the extension portion 35, And jaws 61 that are spaced apart. The gripping protrusions 63 for gripping the second optical fiber 200 are formed in mutually opposed portions of the jaws 61 in the direction corresponding to each other and the second optical fibers 200 so as to grasp the jacket.

The engaging means 80 is for engaging the connector main body 20 and the clamping member 60. The engaging grooves 81 formed at the rear end side of the connector main body 20 and the engaging grooves 81 of the clamping member 60 (82) engaging with the engaging groove (81) is formed on the outer circumferential surface of the base (62).

And the boot 72 is engaged with the clamping member 60 to provide a clamping force to the jacket portion of the second optical fiber 200. [

The process of assembling the optical fiber using the field-assembled optical connector 10 according to the present embodiment will be described with reference to FIGS. 7 and 8. FIG. 7 is a cross-sectional view showing the field-assembled optical connector of FIG. 1 assembled. Fig. 8 is a cross-sectional view showing a state in which the lid coupled to the splice member by the push of the push button of Fig. 1 is flipped away from the splice member.

The field assembly type connector 10 according to the present embodiment is constructed such that the cover 41 is coupled to the splice member 30 in order to prevent the problem that the cover 41 is missing from the splice member 30 .

Generally, an optical fiber is a jacketed cable that includes an outer jacket (e.g., with a buffer coating, etc.) coating, a core (e.g., bare clad / core) and a strength member. The strength member comprises an aramid, Kevlar or polyester yarn or strand disposed between the inner surface of the fiber jacket and the outer surface of the coating.

In order to connect the optical fiber to the field by using the field-assembled connector 10 according to the present embodiment, after inserting the second optical fiber 200 into the boot 72, a part of the cable jacket of the second optical fiber 200 is cut And the coating portion of the second optical fiber 200 is peeled off to leave the bare fiber portion 201. The second core 201 and the first core 101 of the first optical fiber 100, 201). For example, the second optical fiber 200 can leave about 50 mm of the jacket and leave about 25 mm of the peeled second core 201.

Since the cut second core 201 can be optically coupled by the splice unit 40, it is not necessary to polish the fiber end. The boot 72 may be slid over the second optical fiber 200 for later use. When the coating of the second optical fiber 200 is removed, the second core 201 is wiped using alcohol and gauze.

In this state, the cover 41 coupled to the splice member 30 is exclusively lifted by the push button 23 to the portion where the release fitting leg 55 is present, So that the two cores 201 are allowed to move along the V-shaped groove 33.

Then, the second optical fiber 200 is inserted through the clamping member 60 into the core insertion hole 32 formed in the extension portion 35.

It is confirmed whether the second optical fiber 200 is bent in the process of inserting the second core 201. This means that the first and second cores 101 and 201 of the first and second optical fibers 100 and 200 are in close contact with each other.

The connection of the first and second optical fibers 100 and 200 is completed by coupling the coupling hook 52 and the fitting hole 51 which are not coupled by pressing the cover 41.

When the connection of the first and second optical fibers 100 and 200 is completed, the boot 72 and the clamping member 60 are screwed to each other while the second optical fiber 200 is pulled back to maintain the straight state . Then, the connector body 20 and the housing 71 are engaged.

The field-assembled type optical connector 10 according to the present embodiment can be widely applied to various network equipments since field connection is possible in a short time on site.

When the maintenance work is performed after the assembling using the field-assembled optical connector 10 according to the present embodiment is completed, the push button 23 formed at the lower portion of the connector main body 20 is used to carry out maintenance Only the wear fitting leg 55 is lifted in the fitting hole 51 to form a flow space so that the second core 201 flowing through the core insertion hole 32 can move along the V-shaped groove 33 .

In this state, the second optical fiber 200 may be separated to reassemble the second optical fiber 200, or may be replaced with a new optical fiber.

It should be noted that the embodiments disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

10: Field assembly type optical connector 20: Connector body
21: hollow part 22: opening
23: push button 24: push space
25: push plate 26: pushing projection
30: splice member 31: ferrule
32: Core insertion hole 33: V-shaped groove portion
34: core mounting portion 40: splice unit
41: cover 43: cover body
50: engaging member 51: fitting hole
52: coupling hook 53:
53a: first fitting leg 53b: second fitting leg
54: engagement jaw 55: wear-out fitting leg
57: protrusion 60: clamping member
71: housing 73: opening
80: fastening member 90: protective cap

Claims (9)

A connector body having a hollow portion penetrating both sides thereof and having an opening at an upper portion thereof through which a cover can be inserted or removed, and a push button movable into the hollow portion below the opening;
And a splice unit including a splice member inserted into a hollow portion of the connector body and a cover detachably coupled to the splice member through an opening of the connector body,
And pushes the cover coupled to the splice member upwardly to push the pushbutton up against the splice member. The apparatus according to claim 1, wherein the splice unit comprises:
Wherein the splice member comprises:
A ferrule supporting a first core of a first optical fiber on one side;
A core insertion hole is formed in one side of the ferrule and a second core of the second optical fiber is inserted in the other side of the ferrule. And a core mounting portion on which a plurality of fitting holes are formed on both sides of the V-shaped ground portion,
Wherein,
A cover body covering the core mounting portion formed with the V-shaped grooves;
The cover body is formed to protrude from the bottom of the cover body to correspond to the plurality of fitting holes and inserted into the plurality of fitting holes to couple the cover body to the core mounting portion having the V- A plurality of fitting legs for supporting the end portions of the supported first and second cores in close contact with the cover body;
Wherein the optical connector comprises: The connector according to claim 2, wherein the plurality of fitting legs
A plurality of first fitting legs arranged on one side of the lower portion of the cover body;
And a plurality of second fitting legs arranged on the other side of the lower portion of the cover body facing the first fitting legs,
Wherein a width of the first and second fitting legs increases as they descend downward from the cover body, and a width of a lower portion of the first and second fitting legs is larger than a width of the fitting portion located on both sides of the V- Wherein the width of the optical connector is larger than the width between the holes. The method of claim 3,
Wherein each of the lower ends of the plurality of fitting holes is formed with an engaging step inclined outwardly with respect to the inner peripheral face of the fitting hole,
Wherein each of the plurality of fitting legs of the cover has an engaging hook formed on the outer side of the lower portion to engage with the engaging jaw to correspond to an inclined surface of the engaging jaw. 5. The connector according to claim 4, wherein a pair of outer sides of the plurality of fitting legs of the cover has protrusions extending below the engaging hook,
The push button of the connector body is formed at a position corresponding to the protruding portion and pushes the projecting portion protruding under the fitting hole of the core mounting portion upwardly to separate the cover attached to the core mounting portion from the core mounting portion Field-assembled optical connectors. 6. The method of claim 5,
The fitting leg formed with the protrusion is formed on the side opposite to the side to which the ferrule is coupled,
Wherein the push button is formed on the connector body opposite to the side to which the ferrule is coupled. 7. The push button switch according to claim 6,
A pushing plate protruding into a pushing space connected to the hollow portion at a lower portion of the connector body;
A pair of pushing protrusions protruding from the upper surface of the push plate toward the protrusions of the pair of fitting legs to push the protrusions;
Wherein the first and second connectors are spaced apart from each other. The method according to claim 1,
A housing coupled to the connector body and having an opening through which the push button is exposed;
Further comprising: an optical fiber connector mounted on the optical fiber connector. The method according to claim 1,
A housing coupled to the connector body to support the splice unit and to support the ferrule of the splice unit so as to protrude to the front;
A clamping member coupled to the connector body to elastically support the splice unit with respect to the housing and having a clamping portion;
A boot coupled to the clamping member to provide a clamping force on the jacket of the second optical fiber;
Further comprising a plurality of optical fibers.

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