JP4049062B2 - Outlet door structure - Google Patents

Description

  The present invention relates to a door structure of an outlet provided with an opening / closing door that opens and closes a plug insertion opening for inserting a plug.

  Conventionally, a modular jack in which a plug insertion opening is opened in the front wall of the container body and a modular plug is detachably connected through the plug insertion opening is provided with an opening / closing door that opens and closes the plug insertion opening. (For example, see Patent Documents 1 and 2).

  The conventional modular jack has a structure as shown in FIGS. 13 and 14, and includes a shutter block 1 having an opening / closing door 7 (upper door 8 and lower door 9) for opening and closing the plug insertion slot 6, and the shutter block 1. The body 2 is attached to the rear side of the cover 5 and the modular block 3 is used for signal connection between the body 2 and a plug inserted through the plug insertion port 6.

  As shown in FIGS. 11 and 12, the shutter block 1 is disposed in front of the modular block 3 in the plug insertion direction, and includes a cover 5 having a plug insertion port 6 into which a plug is inserted opened in the front wall, and a cover 5. And an opening / closing door 7 that is slidably disposed along the plug insertion port 6 (front wall) and opens / closes the plug insertion port 6, and the opening / closing door 7 is plugged by a coil spring (not shown). It is urged to close the mouth 6.

  The opening / closing door 7 is disposed on the front wall side of the cover 5 with respect to the lower door 9 and closes the remaining half of the plug insertion port 6. The upper door 8 slides in conjunction with the slide movement. On the rear surface of the upper door 8, two guide grooves 51, 51 opened upward at a portion passing through the projection range of the plug insertion opening 6 are formed along the vertical direction (sliding direction). Locking projections 43 projecting rearward are provided on the left and right ends. Further, an operation piece 17 projecting forward through the plug insertion port 6 is projected at the lower front portion of the lower door 9, and a pair of engagements that respectively engage with guide grooves 51, 51 formed on the upper door 8 at the upper front portion. Stop projections 52, 52 are projected, and spring receiving pieces 19, 19 for receiving one end of a coil spring are projected from the lower portions of the left and right side edges of the lower door 9.

  Thus, when the modular plug is inserted from the plug insertion port 6, the operating piece 17 provided on the lower door 9 is moved to the upper door 8 side by the modular plug, thereby resisting the spring force of the coil spring. The lower door 9 slides in the direction (upper side) to open the plug insertion slot 6 and opens the lower half of the plug insertion slot 6. At this time, the upper door 8 slides upward together with the lower door 9 when the lower edge of the upper door 8 is pushed by the operation piece 17 and the locking projections 43 and 43 are pushed by the upper edge of the lower door 9. Then, the plug insertion port 6 is opened.

When the modular plug is pulled out from the plug insertion port 6, the lower door 9 is pushed in the direction (lower side) to close the plug insertion port 6 by the urging force of the urging spring, and the lower door 9 pushes the upper half of the plug insertion port 6. close. At this time, the locking projection 52 of the lower door 9 is locked to the lower end of the guide groove 51 of the upper door 8, so that the upper door 8 slides downward together with the lower door 9, and the upper door 8 becomes the lower door 9. In conjunction with this, the plug insertion slot 6 is closed. Note that the upper door 8 is prevented from sliding further downward by contacting the guide protrusion 15 protruding from the opening edge of the lower portion of the plug insertion opening 6 with the upper half of the plug insertion opening 6 closed. ing.
Japanese Patent Publication No. 7-99701 Japanese Patent No. 3319821

  In the above-described outlet door structure, when the open / close door 7 closes the plug insertion port 6, the lower door 9 is pushed downward by the biasing force of the biasing spring to close the upper half of the plug insertion port 6. The locking projection 52 of the door 9 is locked with the lower end of the guide groove 51 of the upper door 8, so that the upper door 8 moves downward together with the lower door 9. In order to secure the thickness of the upper door 8, the guide grooves 51, 51 cannot be deepened in order to secure the thickness of the upper door 8. For this reason, the locking projections 52 and 52 can be protruded only by a slight depth of the guide grooves 51 and 51, and the engagement margin between the guide groove 51 and the locking projection 52 is small, so that the open / close door 7 is closed. When the upper door 8 is slid and moved upward while pressing the lower door 9 to the rear side (A direction in FIG. 14) in the state, the locking projection 52 easily gets over the end of the guide groove 51, and the upper door 8 and the lower door 9 was easily disengaged.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an outlet door structure in which the engagement state of the two door bodies constituting the open / close door is hardly disengaged. .

In order to achieve the above object, the invention of claim 1 is a door structure of an outlet in which a plug insertion opening is opened in a front wall of a container body, and the plug is detachably coupled through the plug insertion opening. And an opening / closing door disposed on the back side of the front wall of the container so as to be slidable along the plug insertion opening to open and close the plug insertion opening, and the opening / closing door closes a part of the plug insertion opening. And a second door body that is disposed so as to overlap in the front-rear direction with respect to the first door body and closes the rest of the plug insertion port, and one and the other of these door bodies, Engaging means for slidably moving the door bodies in an interlocking manner in the front-rear direction is provided at a portion of the door bodies that is not exposed from the plug insertion opening . Slide the guide that penetrates the door body in the front-rear direction to one of the door bodies. When the other door body moves to one door body side at one end side in the sliding movement direction in the guide section, the engagement projection that engages with the guide section is provided on the other door body. A receiving portion that abuts on the engaging protrusion is provided, and the engaging protrusion and the receiving portion constitute an engaging means, and the engaging margin of the engaging means is approximately the same as the thickness dimension in the front-rear direction of the door body or It is characterized by having a dimension equal to or greater than that.

The invention of claim 2 is characterized in that, in the invention of claim 1 , the guide portion is a side edge portion of one door body.

The invention of claim 3 is characterized in that, in the invention of claim 1 , the guide portion is a through groove provided in one of the door bodies, and an engaging protrusion is engaged with the through groove.

The invention of claim 4 is the invention according to any one of claims 1 to 3 , wherein the first and second door bodies are held between the front wall of the container body and attached to the back side of the front wall of the container body. A pressing member is provided.

  As described above, in the first aspect of the invention, the engagement means engages one door body and the other door body, whereby both door bodies can be slid in conjunction with each other. The engaging means is provided in a portion of the door bodies that is not exposed from the plug insertion opening, and the engaging margin of the engaging means is formed to be approximately the same as or larger than the thickness dimension of the door body in the front-rear direction. Compared to the conventional door structure, the engagement means can be increased, and as a result, even if a force that pushes the door body rearward is applied, the engagement state of the engagement means is made difficult to disengage, It is possible to prevent the engagement state between the first door body and the second door body from being released.

In addition, in the first aspect of the invention, when the other door body moves to the one door body side, the receiving portion provided on one end side of the guide portion and the engaging protrusion provided on the other door body abut. Therefore, one door body can be slid in conjunction with the other door body, and the guide portion is formed through the one door body along the sliding movement direction. Since the protrusion amount of the engaging protrusion that is in contact with the receiving portion can be formed to be approximately the same as the thickness of one door body in the front-rear direction, the engagement margin between the engaging protrusion and the receiving portion is increased. Even if a force that pushes the door body to the rear side is applied, the engagement state between the engagement protrusion and the receiving portion is not easily disengaged, and the engagement between the first door body and the second door body is prevented. It is difficult to get out of the combined state.

In the invention of claim 2, since the engaging protrusion is guided only on one side by the side edge portion of one door body, the engaging protrusion is more slid in comparison with the case of being guided on both sides. Is not easily caught by the guide portion, and the first and second door bodies can be smoothly slid.

In the invention of claim 3 , since the engaging protrusion is engaged with the through groove provided in one of the door bodies, the strength of the receiving portion in contact with the engaging protrusion can be increased.

In the invention of claim 4 , since the first and second door bodies are held between the front wall of the container body and the pressing member by attaching the pressing member to the back side of the front wall of the container body, the door portion Can be blocked, and the workability of assembly work is improved by incorporating the blocked door part into the outlet body, and the first and second door bodies are prevented from falling off from the body during assembly. Can do.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, the vertical and horizontal directions are defined in the direction shown in FIG. 7A, and the front in FIG. Therefore, the right end in FIG.

  This embodiment demonstrates based on the example which applied the door structure of this invention to the modular jack A to which a modular plug is detachably connected. The modular jack A includes a shutter block 1 having an opening / closing door 7 that opens and closes a plug insertion slot 6 as shown in FIGS. 6 to 9, and a body 2 attached to the rear surface side of the cover 5 of the shutter block 1. The modular block 3 is used for signal connection with a plug attached to the body 2 and inserted through the plug insertion port 6.

  The shutter block 1 is arranged in front of the modular block 3 in the plug insertion direction, and a cover 5 (container) in which a plug insertion port 6 into which a plug is inserted is opened in the front wall as shown in FIGS. And an open / close door 7 (upper door 8 and lower door 9) that is slidably disposed along the plug insertion port 6 on the back side of the front wall of the cover 5 and closes the plug insertion port 6. A pair of coil springs 10 and 10 (biasing springs) for biasing the opening / closing door 7 in the direction and the cover 5 are separated from each other and attached to the back side of the front wall of the cover 5 and coiled between the cover 5 It comprises springs 10, 10 and a pressing plate 11 that holds the opening / closing door 7.

  The cover 5 is made of a resin molded product, has a rectangular shape when viewed from the front surface, and has a plug insertion opening 6 at the approximate center of the front surface. Side walls 12 projecting rearward from the four sides of the cover 5 are formed continuously and integrally, and a pair of assembly claw pieces 13 projecting rearward from the rear edges of the left and right side walls 12 are formed. Positioning projections 41 projecting rearward are formed on the substantially intermediate portion of the assembly claw piece 13 respectively. Further, caulking projections 42 projecting rearward are provided at the four corners of the rear surface of the cover 5, and ribs 40 a to 40 d for placing the pressing plate 11 are provided near the caulking projections 42 of the cover 5. It is erected from the rear. In addition, guide ribs 14 and 14 are formed on the rear surface of the cover 5 so as to extend in parallel with the vertical direction (the direction of expansion and contraction of the coil spring 10) on both the left and right sides of the plug insertion port 6. Guide protrusions 15 and 15 projecting rearward from the opening edge are formed. The distance between the guide ribs 14 and 14 is substantially the same as the maximum lateral width of the upper door 8, and the height of the guide rib 14 and the guide projection 15 (the amount of protrusion from the rear surface of the cover 5) is the upper door 8 respectively. It is formed in the dimension substantially the same as the thickness dimension.

  The open / close door 7 is arranged with a resin lower door 9 that closes substantially half of the plug insertion opening 6 and overlapped with the lower door 9 in the front-rear direction (in this embodiment, on the front wall side of the cover 5). The remaining half of the plug insertion port 6 is closed, and the resin upper door 8 is slid in conjunction with the sliding movement of the lower door 9.

  The upper door 8 has a horizontally long rectangular plate shape, and the upper door 8 has a wider width at the upper end than the middle part in the vertical direction. The protrusions 43 are formed on the left and right sides. In addition, L-shaped receiving pieces 44 and 44 are formed integrally from left and right side portions of the lower edge of the upper door 8 so that the tips protrude laterally.

  The lower door 9 has a rectangular plate-shaped lower door body 16, and an operation piece 17 projecting forward through the plug insertion port 6 is projected on the lower front surface of the lower door body 16. A pair of engaging projections 18, 18 that respectively engage with the left and right side edges of the door 8 are provided. Further, from the lower portions of the left and right side edges of the lower door body 16, spring receiving pieces 19, 19 that receive one end of the coil spring 10 are fitted to the guide grooves 45 formed between the side walls 12 of the cover 5 and the guide ribs 14. It protrudes toward. The width of the operation piece 17 is substantially the same as that of the narrow portion 6a provided at the lower portion of the plug insertion opening 6. When the open / close door 7 is closed, the operation piece 17 is inserted into the narrow portion 6a. Has been.

  The presser plate 11 is made of a thin metal plate, and is formed in an inverted U shape when viewed from the front surface. A caulking hole through which the caulking protrusion 42 is inserted into a portion corresponding to the four caulking protrusions 42 provided on the cover 5. 46 is penetrated.

  The body 2 has a substantially box shape with an open rear surface, and the shape viewed from the front surface is formed in a substantially rectangular shape. A projecting base 21 protruding forward is formed in the approximate center of the front surface. A pair of coupling claws 27 project from the outer edges of the left and right step portions of the projecting table 21, and coupling holes 28 are opened on the left and right side surfaces of the projecting table 21, respectively. A mounting hole 22 into which the front end of the modular block 3 is inserted is opened at the center of the front surface of the projecting base 21, and a locking groove 23 opened to the front end side is formed in the front and rear directions on the left and right inner surfaces of the mounting hole 22. Are formed along. In addition, a pair of assembly holes 24 into which the assembly claw pieces 13 of the cover 5 are respectively fitted are formed on the left and right sides of the mounting hole 22 on the front surface of the projecting base 21, and a portion between each pair of assembly holes 24 is formed. A positioning hole 47 into which the positioning protrusion 41 is fitted is formed. Further, a plate-like holding base portion 25 that contacts the upper surface of the modular block 3 extends rearward from the upper end portion of the rear surface of the body 2, and the side surfaces of the modular block 3 extend from the left and right sides of the holding base portion 25. A lateral wall 26 covering the upper half extends downward.

  In addition, the body 2 is a mounting frame for three large squares (standardized for embedded wiring fixtures that are mounted in the form embedded in the mounting surface using a switch box in JIS standards or Japan Wiring Appliance Manufacturers Association standards) It has a shape and dimensions equivalent to the unit dimensions (single module dimensions) of a wiring device that can be attached to three standard mounting frames. When mounting the modular jack A to the mounting frame, in the case of a synthetic resin mounting frame, the coupling claws 27 provided on the left and right side edges of the body 2 are coupled to the holding holes of the mounting frame. In the case of a metal mounting frame, it is attached to the mounting frame by coupling the coupling claws of the mounting frame to the coupling holes 28 opened on the left and right side surfaces of the stand 21 of the body 2.

  The modular block 3 includes a jack body 3a and a middle frame 3b attached to the front end of the jack body 3a. The middle frame 3b has a connection portion 29 to which a modular plug is connected on the front surface. Inside the connection portion 29, a plurality of (for example, eight) contact pins that are electrically connected to a plurality of contacts of the modular plug, respectively. 48 are arranged. In addition, a bending piece 37 is provided at substantially the center of both side surfaces of the middle frame 3b. The front end portion of the bending piece 37 is connected to the middle frame 3b, and the rear end portion can be freely bent in the left-right direction. In the front half of the bending piece 37, the amount of lateral protrusion increases toward the rear. A locking claw 37a is formed. Further, locking projections 35 and 36 are provided on both side surfaces of the middle frame 3 b on the upper and lower sides of the bending piece 37.

  Eight conductive members (not shown) each having a contact pin 48 formed at one end are accommodated inside the jack body 3a, and a pressure contact terminal (not shown) is formed at the other end of each conductive member. Has been. This pressure contact terminal is a pressure contact type formed in a fork shape having a pressure contact slit with a lower end edge opened between a pair of blades. The width of the pressure contact slit is the pressure contact between the both ends of the pressure contact slit on the core wire of the wire to be connected. It is set to an extent. These eight press contact terminals are arranged in two rows of four each on the lower surface of the rear portion of the jack body 3a, and a terminal cover 30 is detachably attached to the portion where the press contact terminals are provided. A display label 4 indicating a terminal arrangement of a plurality of press contact terminals (not shown) arranged on the lower surface of the rear portion of the modular block 3 is attached to the lower surface of the holding table 25.

  Next, the assembly procedure of this modular jack A will be described. As shown in FIG. 2, the upper door 8 is placed so as to cover the upper half of the plug insertion port 6 in FIG. At this time, both side edges of the upper door 8 are in contact with the side surfaces of the guide ribs 14, 14, so that the movement of the upper door 8 in the width direction is restricted, and the leading ends of the receiving pieces 44, 44 are formed on the guide protrusions 15, 15. By abutting, the movement of the upper door 8 in the direction of closing the plug insertion opening 6 is restricted.

  Next, the lower door 9 is placed on the upper side of the upper door 8 and the guide protrusions 15 and 15 so that the operation piece 17 faces downward and covers the lower half of the plug insertion port 6 in FIG. At this time, the engaging protrusions 18, 18 of the lower door 9 are respectively engaged with the left and right side edges along the sliding movement direction of the upper door 8, and are guided by both side edges of the upper door 8 (FIG. 4A). reference). Further, spring receiving pieces 19 projecting from both sides of the lower door main body 16 are respectively inserted into the guide grooves 45 between the guide ribs 14 and the side walls 12, and the lower door 9 slides along the guide grooves 45. (See FIG. 3).

  Next, as shown in FIG. 5A, a pair of coil springs 10 and 10 are inserted into the guide grooves 45 and 45, respectively, and one end of each coil spring 10 is brought into contact with the spring receiving piece 19, and After the other end of the coil spring 10 is brought into contact with a rib erected from the rear surface of the cover 5, the holding plate 11 is inserted into the cover 5 from the upper side as shown in FIG. The presser plate 11 is fixed to the cover 5 by caulking the four caulking projections 42 projecting from the through-holes 46 of the presser plate 11. At this time, since the four side walls 12 of the cover 5 are in contact with the peripheral edge of the pressing plate 11 to support the pressing plate 11, an external force is applied to the pressing plate 11 during assembly, and the pressing plate 11 is deformed. It is possible to prevent the opening / closing door 7 from becoming difficult to open and close due to the deformation of the pressing plate 11. Note that the pressing plate 11 may be fixed to the cover 5 by a method other than caulking, or may be fixed by a conventionally known method such as press-fitting, pressure bonding, or heat fitting.

  Thereafter, the body 2 is fitted into the cover 5 from above, and the assembly claw pieces 13 of the cover 5 are fitted into the assembly holes 24 of the body 2, whereby the body 2 and the cover 5 are coupled. In addition, when the assembly claw piece 13 and the assembly hole 24 are fitted, they can be easily fitted by the taper provided at the tip of the assembly claw piece 13 and the elasticity of the assembly claw piece 13. Further, a positioning projection 41 protrudes from the rear edge of the left and right side walls 12 of the cover 5 at a portion between the pair of assembly claw pieces 13, 13. The positioning projection 41 is provided with a positioning hole 47 provided in the body 2. Since the cover 5 (shutter block 1) is positioned with respect to the body 2, the engagement margins between the assembly claw pieces 13 and the hole edges of the assembly holes 24 are made uniform and securely engaged. Can be stopped.

  Then, the modular block 3 is inserted into the mounting hole 22 of the body 2 from above, and the locking projections 35 and 36 of the modular block 3 are formed on the left and right inner surfaces of the mounting hole 22 (not shown). The modular block 3 is coupled to the body 2 by engaging the locking claw 37a of the bending piece 37 with the stepped portion of the rear end (upper end) of the locking groove 23 formed on the inner surface of the body 2. As a result, the assembly of the modular jack A is completed.

  Here, a pair of restricting ribs 49 and 49 are provided on the upper surface of the back surface of the cover 5 so as to protrude rearward from the presser plate 11 and abut against the front surface of the body 2 to restrict the movement of the body 2 in the forward direction. The restriction ribs 49 and 49 are in contact with the front surface of the body 2 to restrict the movement of the body 2 in the forward direction. Therefore, the pressing plate 11 is pushed forward by the body 2 to prevent the pressing plate 11 from being deformed, and the deformed pressing plate 11 interferes with the open / close door 7 (the upper door 8 and the lower door 9) and opens and closes. It is possible to prevent the opening / closing failure of the door 7 from occurring. In addition, notches 16a and 16a for allowing the restriction ribs 49 and 49 to escape are formed on the lower edge of the lower door body 16.

  By the way, when connecting a modular plug to this modular jack A, the lower door 9 resists the spring force of the coil spring by pushing the operating piece 17 provided on the lower door 9 toward the upper door 8 by the modular plug. 9 slides in the direction to open the plug insertion slot 6 (upper side), and the lower half of the plug insertion slot 6 is opened. At this time, as shown in FIG. 4 (b), the upper door 8 has the locking projections 43, 43 pushed by the upper edge of the lower door body 16 and the base of the locking projection 43 pushed by the engagement projection 18. Further, when the lower edge of the upper door 8 is pushed by the operation piece 17, the upper door 8 slides upward together with the lower door 9, and the plug insertion port 6 is opened.

  On the other hand, when the modular plug is pulled out from the plug insertion port 6, the lower door 9 is pushed in the direction (lower side) to close the plug insertion port 6 by the spring force of the coil spring 10, and the lower door 9 is the upper half of the plug insertion port 6. Close. At this time, as shown in FIG. 4A, the engagement protrusions 18 and 18 of the lower door 9 are engaged with the receiving pieces 44 and 44 of the upper door 8, so that the upper door 8 and the lower door 9 are moved downward. The upper door 8 is interlocked with the lower door 9 and the plug insertion opening 6 is closed. Therefore, when the modular plug is not inserted into the plug insertion port 6, the upper door 8 and the lower door 9 are connected to the plug insertion port 6 by the spring force of the coil spring 10 regardless of the orientation of the modular jack. Since it closes, foreign substances, such as dust, do not penetrate | invade the connection part 29 of the modular block 3. FIG.

  Here, in the present embodiment, the engagement protrusions 18 and 18 provided on the lower door 9 (first door body) are engaged with the left and right side edge portions (guide portions) of the upper door 8 (second door body). At the same time, the lower door 9 moves to one end side in the sliding movement direction of the guide portion (that is, the lower end portions of the left and right side edges of the upper door 8) in the direction closing the plug insertion port 6 (that is, the upper door 8 side). Are provided with receiving pieces 44, 44 that abut against the engaging protrusions 18, 18, and the guide portion that guides the engaging protrusions 18, 18 is located at a portion of the upper door 8 that is not exposed from the plug insertion port 6. 8 is provided penetrating in the front-rear direction, and the amount of protrusion of the engaging protrusions 18, 18 that engage with the guide portion and abut against the receiving pieces 44, 44 is determined by the thickness of the upper door 8 in the front-rear direction. It can be taken to the same extent as the dimensions. Accordingly, the engagement allowance between the engaging protrusions 18 and 18 and the receiving pieces 44 and 44 can be increased, and even if a force that pushes the lower door 9 to the rear side is applied, the engaging protruding parts 18 and 18 and the receiving pieces 44 are applied. , 44 is not released from the engagement state, so that the engagement state between the upper door 8 and the lower door 9 constituting the open / close door 7 can be hardly released. Here, in the present embodiment, the engaging protrusion 18 and the receiving piece 44 constitute the engaging means, but the configuration of the engaging means is not limited to the above, but the thickness of the door body. An engaging means for sliding the doors 8 and 9 by engaging the doors 8 and 9 with each other having a margin of engagement approximately equal to or larger than the size is a plug in the doors 8 and 9. Any configuration of engagement means may be used as long as the engagement means is provided at a portion not exposed from the insertion port 6.

  The guide portions provided on the left and right side portions of the upper door 8 are open on one side in the direction (left and right direction) substantially orthogonal to the slide movement direction, and the respective engaging projections 18 and 18 are in the left and right direction. Since only one side is guided by the left and right side edges of the upper door 8, the engaging projection 18 is moved to the upper door 8 when sliding, compared to the case where the engaging projection 18 is guided on both sides. As a result, the upper door 8 and the lower door 9 can be slid smoothly.

  In the present embodiment, the guide portions provided on both side portions of the upper door 8 are opened to one side in the direction (left-right direction) substantially orthogonal to the sliding movement direction. However, as shown in FIG. , 44 extending from the front end portion of the receiving piece 44, 44 and a connecting piece for reinforcement connecting between the front end portion of the receiving piece 44, 44 and the upper end portions of the left and right side edges of the upper door 8 (base portions of the locking projections 43, 43). By forming 39 and 39 continuously and integrally with the upper door 8, the guide portion is closed around the guide portions provided on the left and right sides of the upper door 8, and the through groove 38 surrounded by the connecting pieces 39 and 39. 38, and the engaging protrusions 18 and 18 may be engaged with the through grooves 38 and 38, and the receiving piece 44 (abutting on the engaging protrusion 18 by closing the guide portion with the connecting piece 39). That is, the strength of the upper door 8) can be increased.

  In the present embodiment, the holding plate 11 is fixed to the cover 5 in a state where the opening / closing door 7 (upper door 8 and lower door 9) and the coil spring 10 are incorporated in the cover 5, and the opening / closing door 7, the coil spring 10, and the like. Is held between the front wall of the cover 5 and the holding plate 11, so that the door portion is blocked, so that the workability of assembly work can be achieved by incorporating the blocked door portion (shutter block 1) into the outlet body. In addition, the opening / closing door 7 can be prevented from falling off the cover 5 during assembly. Further, by blocking the door portion, there is an advantage that the blocked door portion can be used for various kinds of outlets such as a modular outlet, a TV outlet, an optical outlet, an ISDN outlet, and a DSL outlet. Furthermore, the shutter block 1 is attached to the body 2 (outlet body) by engaging the assembly claw piece 13 provided on the cover 5 with the assembly hole 24 of the body 2 and using a fixture such as a screw. As a result, assembly work can be easily automated.

It is a disassembled perspective view of the shutter block of this embodiment. It is a disassembled perspective view which abbreviate | omits a part same as the above. It is a rear view of the state which incorporated the opening / closing door in the cover same as the above. The opening / closing door used for the above is shown, (a) is a view when the opening / closing door is closed as viewed from the front side, and (b) is a view when the opening / closing door is open as viewed from the front side. The same as above, (a) is a rear view of the state before the pressing plate is crimped, and (b) is a rear view of the state where the pressing plate is crimped. It is a disassembled perspective view of the modular jack to which the same is applied. The modular jack same as the above is shown, (a) is a front view, (b) is a top view, and (c) is a side view. It is a bottom view of the modular jack same as the above. It is a rear view of a modular jack same as the above. It is the figure which showed another door used for the same as the above, and the state which the door closed was seen from the front side. It is a disassembled perspective view which can omit a part of conventional shutter block. It is a rear view of the state which incorporated the opening / closing door in the cover same as the above. It is a sectional side view of the modular jack to which the same is applied. It is an external appearance perspective view of a modular jack same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter block 5 Cover 6 Plug insertion port 7 Opening / closing door 8 Upper door 9 Lower door 17 Operation piece 18 Engaging protrusion 44 Receiving piece

Claims (4)

It is a door structure of an outlet in which a plug insertion opening is opened in the front wall of the container body, and the plug is detachably connected through the plug insertion opening, and is along the plug insertion opening on the back side of the front wall of the container body. An open / close door that is slidably disposed to open and close the plug insertion port, the open / close door is a first door body that closes a part of the plug insertion port, and a front-rear direction with respect to the first door body And a second door body that is placed on top of each other and closes the remainder of the plug insertion slot. By sliding one of the two door bodies into engagement with the other, the door bodies are slid together. The engaging means to move is provided in the part which is not exposed from the plug insertion port in both door bodies, The guide which penetrates the said door body to the front-back direction in one door body among the said 1st and 2nd door bodies. Is formed along the sliding movement direction, and the other door body is engaged with the guide portion. An engaging protrusion that is provided, and a receiving portion that contacts the engaging protrusion when the other door body moves toward the one door body side is provided on one end side of the guide portion in the sliding movement direction. The outlet door structure characterized in that the engaging means is constituted by the receiving portion, and the engagement margin of the engaging means is approximately the same as or larger than the thickness dimension in the front-rear direction of the door body. . 2. The outlet door structure according to claim 1, wherein the guide portion is a side edge portion of one door body . The guide portion is a through groove provided in one of the door body, a door structure according to claim 1, wherein outlet, characterized in that is engaged with the engagement projection in the through groove. Any of claims 1 to 3, characterized in that a pressing member for holding the first and second door body between said device body of the front wall of the front wall of the mounted on the back side with the device body Or the outlet door structure described in one .

Images