JP6390019B2 - Waterproof plug and receptacle - Google Patents

Description

  The present invention is provided in an optical transceiver (SFP) or a casing such as an optical termination box including an optical fiber cable or a casing such as a wiring box including an electric cable installed in an environment such as outdoors or dust. The present invention relates to a waterproof connector (plug) including one or more optical connectors or an electrical connector such as a modular plug that is connected to a mating connector (receptacle). Specifically, the present invention relates to a waterproof plug having a structure capable of smoothly connecting one or more optical connectors or electrical connectors included in a plug to one or more optical connectors or electrical connectors included in a receptacle of a housing.

  A connector having a waterproof function is used in order to prevent deterioration of the cable due to water droplets such as rain when connecting the cable in the construction work of an optical fiber cable or an electric cable outdoors. As an example of an optical fiber cable, Japanese Patent Application Laid-Open No. 2010-244056 (Patent Document 1) discloses a plug in which two LC optical contacts (optical connectors) are housed without being fixed, and a print in the housing. There is described a socket (receptacle) in which a connector of an optoelectronic converter provided in a circuit is exposed from an opening provided in a panel of the casing. After the LC optical contact on the plug side is connected to the connector of the photoelectric converter on the socket side, a cap provided so as to cover the plug can be connected to the socket, so that the connection portion between the plug and the socket can be sealed. .

  Japanese Patent Application Laid-Open No. 2014-026134 (Patent Document 2) discloses a plug having two optical connector bodies (optical connectors) fixed by clips, and light of an optical transceiver provided on a substrate in a housing. A receptacle with a connector exposed from a housing shell is described. Attach the plug housing to the receptacle fitting, and connect the optical connector body fixed to the plug to the optical connector exposed from the receptacle shell, and then cover the plug housing. A waterproof structure can be established by fitting the inner shell and the outer shell thus formed with the casing shell of the receptacle with screws.

JP 2010-244056 A Japanese Patent Application Laid-Open No. 2014-026134

  In the conventional plug as described above, when the connector on the receptacle side (optical connector or electrical connector) is arranged at a position that is easy to see, such as near the front end (opening) of the receptacle, the plug The operation of connecting the connector on the side to the connector on the receptacle side can be easily performed while the operator confirms the position of the connector on the receptacle side with his / her own eyes.

  However, if the connector on the receptacle side is disposed further from the opening of the receptacle, it becomes difficult for the operator to confirm the position of the connector on the receptacle side with his / her own eyes, and the connector on the plug side There may arise a problem that the operation of connecting to the receptacle-side connector cannot be easily performed.

  For example, in a configuration in which a substrate on which a module such as an optical transceiver (SFP) including a connector or an electronic component is mounted is housed in a housing, and the connector of the module is exposed from an opening of a receptacle provided in the housing, From the viewpoint of design such as downsizing and effective use of space in the housing, or from the viewpoint of preventing connector deterioration by reducing the exposure of the connector from the opening of the receptacle, the module connector is connected to the edge of the board. In some cases, it is preferable to mount the module on a substrate so that it does not protrude as much as possible.

  In such a case, since the connector of the module is arranged further from the opening of the receptacle, it becomes difficult for the operator to confirm the position of the optical connector on the receptacle side with his / her own eyes. The work of connecting the connector to the connector on the receptacle side cannot be easily performed. Also, when there is a relatively distance (gap) between the side wall of the housing and the edge of the substrate, the module connector is similarly arranged deeper from the opening of the receptacle. Problems can arise.

  In the plug described in Japanese Patent Application Laid-Open No. 2010-244056 (Patent Document 1), the optical connector (LC connector) is housed inside the plug without being fixed. Therefore, when the plug and the receptacle are connected, Thus, an operation of connecting the optical connector on the plug side to the optical connector on the receptacle side is performed. However, when the optical connector on the receptacle side is arranged further from the opening of the receptacle, it is difficult for the operator who performs the connection work to visually observe the optical connector on the receptacle side, and the receptacle Inserting the optical connector on the plug side into the optical connector in the back of the receptacle without a finger from the opening can be a very difficult task.

  In the plug described in Japanese Patent Application Laid-Open No. 2014-026134 (Patent Document 2), since the optical connector is fixed inside the plug, each optical connector must be connected at the same time that the plug is fitted into the receptacle. I must. However, as in the previous example, when the optical connector on the receptacle side is at the back, the center axis deviation from the optical connector on the plug side cannot be corrected well, and the work of fitting the plug into the receptacle is more It can be difficult.

  As described above, in order to eliminate the difficulty in the connection work of the optical fiber cable or the electric cable, the connector holding body that holds one or more connectors at the distal end portion, and the latch contact portion that contacts the latch of the connector And a connector holding body having a latch operation portion for operating the latch of the connector, and a cord tube that accommodates a plurality of slide portions provided at the rear end portion of the connector holding body so as to be slidable in the axial direction. When the plug is connected to the receptacle, the plurality of slide portions are slid in the cord tube, and the connector holding body protrudes toward the receptacle side, so that the connector held at the distal end portion of the connector holding body is received by the receptacle. Provided is a plug that can be easily guided and inserted into a connector provided on the side.

  In addition, by providing the plurality of slide portions accommodated in the cord tube at the end portions of the elastic members extending from the central portion of the connector holding body to the rear end portion, the elastic holding members can hold the connector. Provided is a plug that can change the direction of the tip of the body and can easily adjust the deviation of the central axis between the plug-side connector and the receptacle-side connector.

As one embodiment of the plug according to the present invention, the plug is:
A connector holding body having a connector held at a tip portion and a slide portion at a rear end portion, a latch contact portion that contacts a latch of the connector, and a latch contact portion that extends from an upper portion of the connector holding body and a latch operation portion which binds to, and the connector holding body,
Code tube containing the slide portion therein,
A coupling tube configured to slide axially on an outer wall of the cord tube;
The slide portion is provided at an end portion of an elastic member extending from a central portion of the connector holder to a rear end portion, and is configured to be slidable on the inner wall of the cord tube in the axial direction. Features.

  As a preferred embodiment of the plug according to the present invention, the connector holding body is configured to move in the axial direction when the slide portion provided at the rear end portion slides.

As a preferred embodiment of the plug according to the present invention, the connector holding body includes a guide portion on a surface opposite to a surface on which the latch contact portion is provided,
The guide portion is configured such that a central axis of the connector holding body is aligned with a central axis of the receptacle when the guide portion abuts against an inner wall of a cylindrical portion of the receptacle.

As a preferred embodiment of the plug according to the present invention, the connector holding body includes a grip portion on a surface opposite to a surface on which the latch operation portion is located,
The rear end surface of the gripping portion is in contact with the front end portion of the cord tube, thereby restricting movement of the connector holder in the rear end direction.

As a preferred embodiment of the plug according to the present invention, the connector holder comprises an upper part and a lower part,
The upper part and the lower part are each provided with the slide part at the end of an elastic plate extending in the rear end direction,
Furthermore, the upper part includes the latch contact part and the latch operation part, and the lower part includes the guide part and the grip part.

As a preferred embodiment of the plug according to the present invention, the cord tube includes a guide piece extending in a distal direction from a central portion in parallel to a side portion of the connector holding body,
The guide piece is configured such that a central axis of the connector holding body matches a central axis of the receptacle when the guide piece comes into contact with an inner wall of a cylindrical portion of the receptacle.

  As a preferred embodiment of the plug according to the present invention, the movement of the connector holding body in the distal direction is restricted by the surface on the distal end side of the slide portion coming into contact with the inner wall of the distal end portion of the cord tube. And

As a preferred embodiment of the plug according to the present invention, the connector holding body includes two struts extending in a direction perpendicular to the axis between the latch operation portion and the grip portion,
The two struts are provided at an interval so as to pass a cable line connected to the connector.

  As a preferred embodiment of the plug according to the present invention, the latch contact portion is configured to lower the latch of the connector by pushing down the latch operation portion.

  As one embodiment of the receptacle according to the present invention, the receptacle is configured to be coupled with the plug according to the present invention.

As a preferred embodiment of the receptacle according to the present invention, the receptacle is formed with a groove in the axial direction so as to receive and fit the guide piece of the plug according to the present invention,
The groove portion is characterized by restricting rotation of the cord tube by inserting and fitting the guide pieces.

In the plug according to the present invention having the above-described configuration, when connecting to the receptacle, the receptacle-side connector is provided deeper from the opening of the receptacle, and the operator's finger is inserted from the opening of the receptacle. Even if it is difficult to connect the connectors by hand, it is difficult to connect the connectors to each other by pushing the latch operation part combined with the latch contact part that contacts the latch of the connector to the receptacle side. Since the connector holder that slides in the tube and has the plurality of slide portions at the rear end protrudes toward the receptacle, the connector held at the tip of the connector holder is easily guided to the connector on the receptacle. Can be inserted.

  On the other hand, when the connector on the receptacle side is provided deeper from the opening of the receptacle, the plug according to the present invention is retracted without protruding the connector holding body at the tip of the connector holding body. The held connector can be easily guided and inserted into the connector on the receptacle side. In other words, the plug according to the present invention can cope with the difference in the distance of the connector from the opening of the receptacle, and the connector holding body is protruded by sliding the connector holding body in the axial direction. In the state where the holding body is retracted, the case where the connector on the receptacle side is on the back side and the case on the near side can be handled.

  In addition, since the guide portion provided in the connector holder and the guide piece provided in the cord tube are in contact with the inner wall of the tubular portion of the receptacle, respectively, the center axis of the plug and the receptacle can be aligned, so that the worker who performs the connection work The connector on the plug side can be easily guided to the connector on the receptacle side even in a situation where the connector on the receptacle side is not visible.

  Furthermore, a plurality of slide portions accommodated in a slidable state in the cord tube are provided on each of the end portions of the elastic member extending from the center portion of the connector holding body to the rear end portion. When the connector holder is projected to the receptacle side by sliding the slide portion of the connector, the direction of the tip of the connector holder can be changed by the elastic member, and the plug side connector and the receptacle side connector can be changed. It is possible to easily adjust the deviation of the central axis.

  Thus, the plug according to the present invention can be easily connected to the receptacle.

It is an external view of the plug which concerns on one Embodiment of this invention. It is an external view which shows the state which inserted the front-end | tip part of the plug into the other party receptacle from the state before the connection shown in FIG. FIG. 3 is an external view showing a state in which the coupling tube surrounding the outer wall of the cord tube of the plug is slid from the inserted state shown in FIG. 2 and coupled to the mating receptacle. It is sectional drawing when the plug which concerns on one Embodiment of this invention is cut | disconnected along the AA line. It is a figure which shows the components structure of the connector holding body contained in the plug which concerns on one Embodiment of this invention. It is sectional drawing which shows the state (retracted state) which moved the connector holding body to the rear-end direction. It is sectional drawing which shows the state (state which protruded) which moved the connector holding body to the front end direction. It is a figure which shows the mode in the receptacle which connected the connector of the plug front-end | tip part to the connector of the other party receptacle in the state which protruded the connector holding body. It is a figure which shows the mode in the receptacle which connected the connector of the plug front-end | tip part to the connector of the other party receptacle in the state which retracted the connector holding body.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiment, and the repetitive description thereof will be omitted.

  FIG. 1 to FIG. 3 are external views of a plug according to an embodiment of the present invention, and are a view showing a series of states when the plug is inserted into a receptacle. FIGS. 1A, 2A, and 3A are external views of the plug 100 and the receptacle 200 as viewed obliquely from above, respectively, the state before the plug 100 is inserted into the receptacle 200, the plug A state where the tip of 100 is inserted into the receptacle 200 and a state where the plug 100 and the receptacle 200 are completely coupled are shown. FIGS. 1B, 2B, and 3B are external views of the state in which the plug 100 is inserted into the receptacle 200 as viewed from the side. For convenience of description, in the plug 100, the direction of insertion into the receptacle 200 is the front, and the opposite direction is the rear. Further, the front end portion of the plug 100 is a front end or a front end portion, and the rear end portion is a rear end or a rear end portion.

  The plug 100 includes a connector holder 120 that holds the two connectors 110 at a portion to be inserted into the receptacle 200, that is, at the tip. As shown in FIG. 1A, in this embodiment, an optical connector is used as the connector 110. However, the connector 110 is not intended to be limited to an optical connector. For example, an electrical connector such as a modular plug connector may be used. The connector holding body 120 holds two connectors, but is not limited to two, and one or more connectors can be held at the tip.

  The connector holding body 120 includes a latch operation portion 124 and a latch contact portion 122 whose upper end portion is coupled to the latch operation portion 124 and whose front end portion contacts the latch 112 of the connector 110. That is, the latch operation part 124 extends from the upper surface of the connector holder 120 and is coupled to the latch contact part 122. The latch operation unit 124 has elasticity at the coupling portion (that is, the root portion) with the upper surface of the connector holding body 120, and bends the root portion by applying a force from the upper surface of the latch operation unit 124. When the application of force to the upper surface of the latch operation unit 124 is stopped, the original state can be restored. By pushing down the latch operation portion 124, the latch contact portion 122 coupled to the latch operation portion 124 can be interlocked to push down all the latches 112 of the connector 110 at the same time. Of course, it is also possible to push down the latch 112 of the connector 110 by pushing down the latch contact 122.

  The connector holding body 120 includes a grip portion 126 formed in a rectangular shape on the lower surface opposite to the upper surface where the latch operation portion 124 is located, and is formed in a rectangular column shape on the lower surface opposite to the upper surface where the latch contact portion 122 is located. The formed guide part 128 is provided. In addition, the shape of the holding part 126 is not limited to a rectangle. The grip portion 126 is provided at a position below the latch operation portion 124. When performing an operation of connecting the plug 100 to the receptacle 200, the operator can push down the latch operation portion 124 by sandwiching the latch operation portion 124 and the grip portion 126 with a fingertip. When inserting the plug 100 into the receptacle 200, the guide portion 128 abuts the end portion of the guide portion 128 against the inner wall of the cylindrical portion 202 of the receptacle 200 so that the central axis of the connector holding body 120 is the center of the receptacle. Has the function of matching the axis.

  A convex portion 129 can be provided at the end of the guide portion 128. The convex portion 129 can restrict the insertion of the connector holder 120 so that the connector holder 120 does not enter the interior of the receptacle 200 more than necessary. As shown in FIG. 1B, in the present embodiment, the convex portion 129 is provided at the end of the guide portion 128, but the convex portion 129 may not be provided.

  The plug 100 is coupled to the tubular portion 202 of the receptacle 200, and includes a coupling tube 140 for covering the connector 110 and the connector holding body 120, a cable 170, and a clamp 150 for tightening and fixing the cable 170. I have. Further, referring to FIG. 3, the plug 100 includes a cord tube 160 in which a rear end portion of the connector holding body 120 is accommodated. The cord tube 160 includes a coupling tube 140 that penetrates the inside of the tube of the coupling tube 140 and is configured to slide on the outer wall of the cord tube 160 in the front-rear direction, that is, in the axial direction. The cord tube 160 includes a guide piece 162 extending from the central portion to the distal end portion and extending in parallel to the side portion of the connector holding body 120 from the central portion in the distal end direction. The guide piece 162 extends so as to at least partially cover both side portions of the connector holding body 120. As shown in FIGS. 1 (a) and 2 (a), in the present embodiment, two guide pieces 162 are provided, but the number is not limited to two.

  The receptacle 200 includes a cylindrical tubular portion 202 and a planar mounting portion 204 for fixing to a side surface of the housing. The receptacle 200 is installed on the side surface of the housing 210 by the mounting unit 204. Although not shown in FIGS. 1 to 3, a through-hole that connects the outside and the inside is provided on the side wall of the housing 210 at a position corresponding to the cylindrical portion 202 of the receptacle 200 (see FIGS. 8 and 9). . In the drawings, only a part of the housing 210 is shown for convenience of explanation (the same applies to other drawings). A lock portion 203 is provided on the outer wall of the cylindrical portion 202 of the receptacle 200. As shown in FIGS. 1B and 2B, in the present embodiment, two lock portions 203 are provided, but the number of lock portions 203 is not limited to two, and one or more may be sufficient. A substrate 230 on which a module 220 such as an optical transceiver or an electronic component is mounted is accommodated in the housing 210, and a connector 222 of the module 220 is provided inside the cylindrical portion 202 through a hole penetrating the housing 210. It is exposed from the through hole opened in the casing 210 and is fixed toward the opening side of the cylindrical portion.

  The guide groove 206 of the receptacle 200 is provided at a position corresponding to the position of the guide piece 162 on the inner wall of the cylindrical portion 202. As shown in FIGS. 1A and 2A, when connecting the plug 100 to the receptacle 200, the guide piece 162 is inserted into a guide groove 206 provided on the inner wall of the cylindrical portion 202 of the receptacle 200. Can be inserted along. When the guide piece 162 is inserted and fitted into the guide groove 206, the receptacle 200 and the cord tube 160 cannot be rotated relative to each other, and the coupling tube 140 can be coupled to the receptacle by rotating the coupling tube 140.

  As shown in FIG. 2A and FIG. 3A, the coupling tube 140 is inserted into the receptacle 200 with the connector 110 and the tip of the connector holding body 120 inserted into the plug-side connector 110 and the receptacle 200 side. After connecting the connector 222, the connector 222 is moved to the distal end side to cover the outer wall of the cylindrical portion 202. The coupling tube 140 is provided with a lock hole 142 for fixing the coupling tube 140 by passing the lock portion 203 provided on the outer wall of the cylindrical portion 202. When the coupling tube 140 covers the cylindrical portion 202, the lock portion 203 enters the lock hole 142, and by twisting the coupling tube 140 clockwise, the lock hole 142 is locked to the lock portion 203, and FIG. As shown in a) and (b), the coupling tube 140 is fixed to the cylindrical portion 202. Thereby, the inside of the coupling pipe 140 is sealed, and a waterproof function can be exhibited. The lock hole 142 in the coupling tube 140 can be provided according to the number of the lock portions 203. In this embodiment, since there are two lock portions 203, two lock holes 142 are also provided, but the number is not limited to two.

  FIG. 4 is a cross-sectional view of the plug according to the embodiment of the present invention cut along the line AA. 4A shows the cutting positions of the plug 100 and the receptacle 200 by AA lines, and FIG. 4B shows the plug 100 and the receptacle 200 cut vertically from above along the lines AA. , Showing a cross section thereof. 4 and the subsequent drawings, the cable 170 is omitted.

  As shown in FIG. 4 (b), in order to improve the waterproof function of the plug 100, the waterproof packing 144 is a cylinder inside the coupling tube 140 when the coupling tube 140 is fixed over the cylindrical portion 202. It is provided at a position in contact with the tip of the cylindrical portion 202 and can close the gap between the coupling tube 140 and the cylindrical portion 202. The waterproof packing 164 is provided between the outer wall of the cord tube 160 and the inner wall of the coupling tube 140 at the distal end of the cord tube 160, and can close the gap between the cord tube 160 and the coupling tube 140. Further, a waterproof packing 208 is also provided on the receptacle 200 side in order to close the gap with the casing 210.

  The clamp 150 is coupled to the rear end portion of the cord tube 160 by screwing. By turning the clamp 150 in the tightening direction, the cable 170 (not shown in FIG. 4) passing through the cord tube 160 can be tightened and fixed. The coupling tube 140 configured to slide on the outer wall of the cord tube 160 is regulated to slide in the rear end direction by the outside of the end portion 146 coming into contact with the end portion 152 of the clamp 150, and the end portion 146. The inner side of the contact with the convex portion 166 at the distal end portion of the cord tube 160 restricts sliding in the distal end direction, so that the plug 100 can be fixed to the cable 170.

  The cord tube 160 can accommodate the rear end portion from the center portion of the connector holder 120 therein. The slide portion 125 and the slide portion 127 provided at the rear end portion of the connector holding body 120 are accommodated inside the cord tube 160 so as to be able to slide on the inner wall of the cord tube 160 in the axial direction. The connector fixing portion 123 of the connector holding body 120 is below the latch contact portion 122 and the latch operation portion 124, and is fixed by pressing the rear end portion of the connector 110 held at the front end portion of the connector holding body 120 from above. Can do.

  When the distal end portion of the plug 100 is inserted into the receptacle 200, the central axis of the connector holder 120 at the distal end of the plug 100 is aligned with the central axis of the receptacle 200 by bringing the guide portion 128 into contact with the inner wall of the cylindrical portion 202. Further, by inserting the plug 100 into the back with the guide piece 162 aligned with the guide groove 206, the plug-side connector 110 and the receptacle-side connector 222 are maintained while maintaining the center axis of each other. Can be easily connected. With such a configuration, an operator who performs the connection work can easily guide the plug-side connector to the receptacle-side connector even in a situation where the receptacle-side connector cannot be visually observed.

  FIG. 5 shows a component structure of a connector holder included in a plug according to an embodiment of the present invention. As shown in FIG. 5A, the connector holding body 120 includes an upper part 135 including a latch contact portion 122, a latch operation portion 124, a slide portion 125, and the like, a guide portion 128, a grip portion 126, a slide portion 127, and the like. The lower part 136 is provided. The connector 110 is fixed to the distal end portion of the connector holding body 120 by being sandwiched between these parts from above and below. Specifically, as shown in FIG. 5B, in the upper part 135, the locking claws 121 provided at the tip of the side wall part 130 are provided on both sides of the tip of the lower part 136. The connector 110 can be fixed by being caught by the stopper 131.

  A groove-like recess 113 extending in the vertical direction (axial direction) is formed on the side surface of the connector 110, and the partition portion 137 formed on the inner side surface of the locking portion 131 of the lower part 136 and the upper portion of the guide portion 128 is formed. On the side surface, a hook-shaped convex portion 138 extending in the vertical direction is formed. The connector 110 can be fixed to the lower part 136 by restricting the movement in the axial direction by inserting and fitting the concave part 113 of the side surface into the convex part 138 of the lower part 136.

  The side wall portion 130 extends downward from both side edge portions of the distal end portion of the connector fixing portion 123. The side wall portion 130 has a recess for fitting the locking portion 131 on the inside, and includes a locking claw 121 for hooking the locking portion 131 at the tip.

  As shown in FIGS. 5A and 5C, the connector holder 120 extends in the axial direction from the central portion (that is, the portion where the latch operation portion 124 and the grip portion 126 are provided) to the rear end portion. The slide part 125 and the slide part 127 are included at the ends of the elastic plate 133 and the elastic plate 134, which are plate members having elasticity.

  When the rear end portion of the connector holding body 120 is accommodated in the cord tube 160, the elastic plate 133 and the elastic plate 134 of the connector holding body 120 are elastically deformed in the direction in which they approach each other. It is possible to accommodate the slide portions 125 and 127 at the ends of the elastic plates 133 and 134 by overcoming the part where the restricting surfaces 168 and 169 are provided), and after overcoming, the deformation returns to the original, The slide portions 125 and 127 are regulated by the regulation surface 169 of the cord tube 160, and the connector holder 120 can be easily slidably attached to the cord tube 160.

  Two support columns 132 for supporting the upper part 135 are provided on the lower part 136 of the connector holder 120. As shown in FIG. 5C, the support column 132 is configured to extend so as to connect the latch operation unit 124 and the gripping unit 126 in the vertical direction (axial direction), and around the root portion of the latch operation unit 124. Can be supported. The support column 132 can withstand the force applied when the operator holds the latch operation portion 124 and the gripping portion 126 between the fingertips and pushes down the latch operation portion 124 when the plug 100 and the receptacle 200 are connected. In addition, the two support columns 132 are provided at intervals so as to pass a cable line (not shown) connected to the connector 110. That is, the cable line can be passed between the two columns 132. In this embodiment, two support columns 132 are provided, but the number of support columns 132 is not limited to two, and two or more support columns 132 may be provided.

  FIG. 6 is a cross-sectional view showing a state in which the connector holder included in the plug according to the embodiment of the present invention has been moved in the rear end direction (retracted state). 6A shows a cutting position of the connector holding body 120 and the cord tube 160 by a BB line, and FIG. 6B shows the connector holding body 120 and the cord tube 160 along the BB line. Cut vertically from the top and show their cross section. FIG. 6 shows the plug 100 with the clamp 150 removed and the coupling tube 140 removed.

  When the connector holder 120 is retracted, the cord tube 160 can accommodate the slide portions 125 and 127 and the elastic plates 133 and 134 of the connector holder 120 therein. The slide portions 125 and 127 provided at the end portions of the elastic plates 133 and 134 extending from the center portion of the connector holding body 120 to the rear end portion slide on the inner wall of the cord tube 160, so that the connector holding body. 120 can move in the axial direction (front-rear direction).

  The grip part 126 is a lower part 136 that is just opposite to the center of the lower part 136 constituting the connector holder 120 (that is, the latch operation part 124 on the upper surface of the upper part 135 constituting the connector holder 120). The lower surface is formed in a rectangular shape protruding downward. Therefore, the movement of the connector holding body 120 in the rear end direction is restricted by the rear end surface of the gripping portion 126 and the tip end portion of the cord tube 160 coming into contact with each other. That is, the rear end surface of the grip portion 126 facing the front end portion of the cord tube 160 abuts on the restriction surface 169 of the front end portion of the cord tube 160, so that the movement in the rear end direction of the connector holder 120 is restricted. The In addition, the shape of the holding part 126 is not limited to a rectangle.

  In a state where the connector holding body 120 is retracted into the cord tube 160, a cable wire (not shown) connected to the connector 110 bends, but the cable wire is provided on both sides of the central portion of the connector holding body 120. In addition, since the cable line is bent between the two parts 132 (see FIG. 5), the cable line jumps between the upper part 135 and the lower part 136 constituting the connector holder 120 even if the cable line is bent. Can be prevented.

  FIG. 7 is a cross-sectional view illustrating a state in which the connector holding body included in the plug according to the embodiment of the present invention has been moved in the distal direction (projected state). Similarly to FIGS. 6A and 6B, FIG. 7A shows the cutting positions of the connector holding body 120 and the cord tube 160 with a CC line, and FIG. 7B shows the CC line. The connector holder 120 and the cord tube 160 are cut vertically from above along their lines, showing their cross sections. 7 shows the plug 100 in a state where the clamp 150 is removed and the coupling tube 140 is pulled out, as in FIG.

  The slide portion 125 is formed in a rectangular shape protruding upward (in the inner wall side of the cord tube) at the end portion of the elastic plate 133 extending from the center portion of the upper part 135 constituting the connector holding body 120 to the rear end portion. The On the other hand, the slide part 127 is formed in a rectangular shape by projecting downward (on the inner wall side of the cord tube) from the center part to the rear end part of the lower part 136 constituting the connector holding body 120 to the end part of the elastic plate 134. The Therefore, the movement of the connector holding body 120 in the distal end direction is restricted by contact between the distal end side surfaces of the slide portions 125 and 127 and the inner wall of the distal end portion of the cord tube 160. That is, the front surface side of the slide portions 125 and 127 facing the inner wall of the distal end portion of the cord tube 160 abuts on the restriction surface 168 that is the inner wall of the distal end portion of the cord tube 160, whereby the distal end direction of the connector holding body 120 Movement to is regulated. In addition, the shape of the slide parts 125 and 127 is not limited to a rectangle.

  FIG. 8 shows that the configuration in the casing 210 on the receptacle 200 side is such that there is a relatively distance (gap) between the side wall of the casing 210 and the edge of the substrate 230, and the connector of the module 220 extends from the opening of the receptacle 200. 222 shows a configuration arranged on the back side. As shown in FIG. 8, the connector holding body 120 included in the plug 100 according to the embodiment of the present invention is protruded from the receptacle 200 having such a configuration, so that the connector at the tip end of the plug is connected to the back side. Can be connected to the connector 222 of the receptacle 200 disposed in the connector. Note that the receptacle 200 and the casing 210 are shown in a cross-sectional view in order to show the internal state of the receptacle 200 when the plug 100 is connected.

  An operator who connects the plug 100 and the receptacle 200 can project the connector holding body 120 toward the receptacle side by pushing the latch operation portion 124 of the connector holding body 120 in the distal direction. The state in the cord tube 160 with the connector holder 120 protruding is as shown in FIG. The distal end surfaces of the slide portions 125 and 127 abut against the restriction surface 168 of the cord tube 160, and the movement of the connector holding body 120 in the distal end direction is restricted.

  The protruded connector holding body 120 abuts the end portion of the guide portion 128 provided at the lower portion of the front end portion against the inner wall of the cylindrical portion 202 of the receptacle 200 and aligns the guide piece 162 with the guide groove 206 in the front end direction. By sliding, the central axis of the connector holding body 120 and the central axis of the receptacle 200 coincide, and the plug-side connector 110 can be smoothly inserted into the receptacle-side connector 222.

  With such a configuration, even if it is difficult to connect the connectors manually, the finger of the worker who performs the connection work does not enter from the opening of the cylindrical portion 202 of the receptacle 200. By projecting the body 120, the connector 110 held at the tip of the connector holding body 120 can be easily guided and inserted into the connector 222 of the receptacle 200.

  Moreover, in the state which protruded the connector holding body 120, the direction of the front-end | tip part of the connector holding body 120 can be changed with the elasticity of the elastic plates 133 and 134 (refer FIG. 5). With such a configuration, it is possible to easily adjust the deviation of the central axis between the plug-side connector 110 and the receptacle-side connector 222.

  From the state shown in FIG. 8 (that is, the state in which the connector holding body 120 is protruded and the plug-side connector 110 and the receptacle-side connector 222 are connected), the cord tube 160 inside the coupling tube 140 is moved to the distal end side. By moving the connector holder 120, the connector holder 120 can be retracted into the cord tube 160. The inside of the cord tube 160 with the connector holder 120 retracted is as shown in FIG. The rear end surface of the gripping portion 126 abuts on the restriction surface 169 of the cord tube 160, and movement in the rear end direction of the connector holder 120 is restricted.

  By moving the coupling tube 140 in the distal direction from the state in which the connector holder 120 is retracted, the outer wall of the cylindrical portion 202 of the receptacle 200 can be covered, as shown in FIGS. 3 (a) and 3 (b). The coupling tube 140 is fixed to the cylindrical portion 202 by engaging the lock hole 142 of the coupling tube 140 with the locking portion 203 of the cylindrical portion 202 by the rotation operation.

  FIG. 9 shows that the configuration in the casing 210 on the receptacle 200 side is a relatively close position between the side wall of the casing 210 and the edge of the substrate 230, and the connector 222 of the module 220 is connected to the opening of the receptacle 200. The structure arrange | positioned in the near side is shown. As shown in FIG. 9, the connector at the tip end of the plug is connected to the front side with the connector holder 120 included in the plug 100 according to the embodiment of the present invention retracted with respect to the receptacle 200 having such a configuration. It can be connected to the connector 222 of the receptacle 200 arranged on the side. Similarly to FIG. 8, the receptacle 200 and the casing 210 are shown in a cross-sectional view in order to show the state inside the receptacle 200 when the plug is connected.

  The inside of the cord tube 160 with the connector holder 120 retracted is as shown in FIG. The rear end surface of the gripping portion 126 abuts on the restriction surface 169 of the cord tube 160, and movement in the rear end direction of the connector holder 120 is restricted.

  By moving the coupling tube 140 in the distal direction from the state shown in FIG. 9, the outer wall of the cylindrical portion 202 of the receptacle 200 can be covered and rotated as shown in FIGS. 3 (a) and 3 (b). The coupling tube 140 is fixed to the cylindrical portion 202 by engaging the lock hole 142 of the coupling tube 140 with the lock portion 203 of the cylindrical portion 202 by the operation.

  As shown in FIGS. 8 and 9, the invention according to one embodiment of the present invention is the distance of the connector 222 from the opening of the receptacle 202 caused by the difference in the arrangement of the substrate 230, the module 220, etc. in the housing 210. It is possible to cope with the difference. That is, when the connector holding body 120 of the plug 100 is slid in the axial direction, the connector 222 on the receptacle 200 side is in the back side with the connector holding body 120 protruding and the connector holding body 120 retracted. It is possible to cope with the case of being on the near side.

  The waterproof plug according to the present invention can be used when connecting a cable in laying work of an optical fiber cable or an electric cable outdoors.

100 Flag 110 Connector 112 Latch 113 Recess 120 Connector holder 121 Locking claw 122 Latch contact part 123 Connector fixing part 124 Latch operation part 125 Slide part 126 Gripping part 127 Slide part 128 Guide part 129 Protruding part 130 Side wall part 131 Locking part 132 Column 133 Elastic plate 134 Elastic plate 135 Upper part 136 Lower part 137 Partition 138 Convex part 140 Joint pipe 142 Lock hole 144 Waterproof packing 146 End part 150 Clamp 152 End part 160 Code pipe 162 Guide piece 164 Waterproof packing 166 Convex part 168 Restriction surface 169 Restriction surface 170 Cable 200 Receptacle 202 Cylindrical portion 203 Lock portion 204 Mounting portion 206 Guide groove 208 Waterproof packing 210 Housing 220 Module 222 Connector 230 Board

Claims (10)

A connector holding body having a connector held at a tip portion and a slide portion at a rear end portion, a latch contact portion that contacts a latch of the connector, and a latch contact portion that extends from an upper portion of the connector holding body and a latch operation portion which binds to, and the connector holding body,
Code tube containing the slide portion therein,
A coupling tube configured to slide axially on the outer wall of the cord tube;
Before SL slide unit, the provided from a central portion of the connector holding member to the end portion of the member having elasticity extending to the rear end, to the inner wall above the cord tube is slidably configured in the axial direction Plug characterized by.   2. The plug according to claim 1, wherein the connector holding body is configured to move in an axial direction by sliding of the slide portion provided at a rear end portion thereof. The connector holder includes a guide portion on a surface opposite to a surface where the latch contact portion is located
The said guide part is comprised so that the center axis | shaft of the said connector holding body may match the center axis | shaft of the said receptacle when it contact | abuts to the inner wall of the cylindrical part of a receptacle. Plug as described in. The connector holding body includes a gripping portion on a surface opposite to a surface where the latch operation portion is located,
4. The plug according to claim 3 , wherein movement of the connector holding body in a rear end direction is regulated by a rear end surface of the gripping portion coming into contact with a front end portion of the cord tube. The connector holder comprises an upper part and a lower part,
The upper part and the lower part are each provided with the slide part at the end of an elastic plate extending in the rear end direction,
The plug according to claim 4 , wherein the upper part includes the latch contact part and the latch operation part, and the lower part includes the guide part and the grip part. The cord tube includes a guide piece extending in a distal direction from a central portion in parallel to a side portion of the connector holding body,
The said guide piece is comprised so that the center axis | shaft of the said connector holding body may match the center axis | shaft of the said receptacle when it contact | abuts to the inner wall of the cylindrical part of a receptacle. The plug according to any one of the above.   7. The movement of the connector holding body in the distal direction is restricted by a surface on the distal end side of the slide portion being in contact with an inner wall of the distal end portion of the cord tube. Plug as described in section. The connector holding body includes two struts extending in a direction perpendicular to the axis between the latch operation portion and the grip portion,
The plug according to claim 4 or 5 , wherein the two struts are provided at an interval so as to pass a cable line connected to the connector. The plug according to claim 4 , wherein the latch contact portion is configured to lower the latch of the connector by pushing down the latch operation portion. A receptacle configured to couple with the plug of claim 6, comprising:
A groove is formed in the axial direction so as to receive and fit the guide piece,
The said groove part is a receptacle characterized by restricting rotation of the said code | cord | chord pipe | tube by the said guide piece being inserted and fitting.

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