JP2004186136A - Outlet and shutter block for outlet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outlet and a shutter block for an outlet improving workability in assembling a door portion, and facilitating automation of the assembly. <P>SOLUTION: The shutter block 1 is to be mounted on a front surface side of an outlet having a plug connecting part for connecting a plug. The shutter block 1 comprises a cover 5 having a plug inserting hole 6 on the front surface for inserting a plug, a door 7(an upper door 8 and a lower door 9) slidably arranged along the plug inserting hole 6 in the rear surface side of the cover 5, for opening/closing the plug inserting hole 6, a pair of coil springs 10 having one end abut the lower door 9 to energize the door 7 in a direction closing the plug inserting hole 6, and a pressing plate 11 provided on the rear surface side of the cover 5 separately from the cover 5, for holding the coil spring 10 between the cover 5. A spring receiving piece 20 is provided on the pressing plate 11 for receiving the other end of the coil spring 10. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to an outlet and a shutter block for an outlet provided with a door (shutter) for opening and closing the plug insertion opening, which has a plug insertion opening for inserting a plug opened in the front.

  As this type of outlet, there has been conventionally provided a modular jack having a structure as shown in FIG. 20 to which a modular plug is detachably connected (for example, see Patent Document 1).

  The case accommodating the modular block 63 is formed by connecting the cover 61 and the body 62. The cover 61 is provided with a protruding base 64 formed to protrude toward the front side, and the body 62 is provided with a body main body 65 formed to protrude toward the rear side. Then, in a state where the cover 61 and the body 62 are fitted, the modular block 63 is stored in a space surrounded by the protrusion 64 and the body main body 65.

  A plug insertion port 66 into which a modular plug (not shown) is inserted is opened on the front surface of the protruding base 64. The modular plug is inserted into the plug insertion port 66 and inserted into the jack connection portion 67 of the modular block 63. At this time, the contacts of the modular plug contact the contact portions (not shown) arranged in the jack connection portion 67. An opening 69 for exposing the rear part of the modular block 63 is formed in the body main body 65, and terminals (not shown) electrically connected to the contact portions are provided at portions of the modular block 63 exposed from the opening 69. Have been. Reference numeral 68 in the drawing denotes a protective cover that is detachably attached to the body main body 65 and covers a portion of the modular block 63 exposed from the opening 69.

  In addition, the protruding base 64 is provided with a door 70 that slides along the plug insertion port 66 on the inner surface side and opens and closes the plug insertion port 66. The door 70 includes an upper door 71 and a lower door 72 each formed in a plate shape, and is housed on the inner surface of the protruding base 64 with the upper door 71 on the front side and the lower door 72 on the rear side. On the back side of the lower end of the upper door 71, a locking portion for locking with a projection (not shown) provided on the front side of the upper end of the lower door 72 is formed. On the front side of the lower door 72, an operation piece 73 is projected, and on both left and right sides of the lower door 72, spring receivers (not shown) for receiving one ends of coil springs (not shown) are provided. . The other end of the coil spring is in contact with the inner surface of the cover 61, and the lower door 72 is urged by the spring force of the coil spring in a direction to close the plug insertion port 66.

Thus, when the modular plug is not inserted into the plug insertion port 66, the plug insertion port 66 is closed by the door 70. When inserting the modular plug, the operating piece 73 is pushed by the modular plug to move the lower door 72 upward in the drawing against the spring force of the coil spring. , The upper door 71 moves upward together with the lower door 72, and the plug insertion port 66 is opened. On the other hand, when the modular plug is removed from the plug insertion port 66, the lower door 72 moves downward by the spring force of the coil spring, and the projection provided at the upper end of the lower door 72 and the engagement provided at the lower end of the upper door 71. When the stopper is locked, the upper door 71 moves downward together with the lower door 72, and the plug insertion port 66 is closed.
JP-A-7-14634 (page 3 and FIG. 1)

  In the shutter structure of the outlet described above, one end of the coil spring is held by the spring receiver provided on the door 70 (lower door 72), and the other end of the coil spring is received by the inner surface of the cover 61. When incorporating the coil spring into the inside of the coil spring 61, it was necessary to incorporate the coil spring in a compressed state, and the workability of the assembling work was poor. In addition, since there is no member to hold the coil spring between the rear surface of the pedestal, if a shock such as a drop is applied during assembly, the coil spring or door may come off and be disassembled. Was bad.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an outlet and a shutter block for the outlet, which improve the assembling workability of a door portion and facilitate the automation of assembly. .

  In order to achieve the above object, a first aspect of the present invention is directed to a cover having a plug insertion opening for inserting a plug, a cover having an opening at a front surface, and a plug insertion opening slidably disposed along a rear surface of the cover along the plug insertion opening. A door that opens and closes, a biasing spring that biases the door in a direction in which one end contacts the door and closes the plug insertion opening, and a cover that is separate from the cover and attached to the rear side of the cover. A holding plate for holding the biasing spring, and a body formed in a shape attachable to a mounting frame standardized for an embedded wiring device and attached to a rear surface side of the cover. Features.

  The invention according to claim 2 is a cover in which a plug insertion opening for inserting a plug is opened in the front, a door that is slidably arranged along the plug insertion opening on the rear side of the cover to open and close the plug insertion opening, A biasing spring that abuts on the door and biases the door in a direction to close the plug insertion opening, and a retainer that is separate from the cover and is attached to the rear side of the cover to hold the biasing spring between the cover and the cover. It is characterized by comprising a plate and a body attached to the rear surface side of the cover and attached in a state of being exposed to the construction surface.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, a guide portion is provided on the rear surface side of the cover in parallel with the direction of expansion and contraction of the biasing spring to guide the biasing spring from both sides, and a peripheral edge of the holding plate is provided. And a support rib for receiving a force for pressing the holding plate forward by contacting the support rib with the rear surface of the cover.

  The invention according to claim 4 is a cover in which a plug insertion opening for inserting a plug is opened at the front, a door slidably arranged along the plug insertion opening on the rear side of the cover to open and close the plug insertion opening, and one end thereof. A biasing spring that abuts on the door and biases the door in a direction to close the plug insertion opening, and a retainer that is separate from the cover and is attached to the rear side of the cover to hold the biasing spring between the cover and the cover. A board, a body formed in a shape attachable to a mounting frame standardized for an embedded wiring device, and attached to the rear side of the cover, and a plug attached to the body and inserted through a plug insertion port And an outlet block used for signal connection between the spring plate and a spring receiving portion for receiving the other end of the biasing spring on the holding plate, and a spring receiving member for receiving the other end of the biasing spring with the holding plate. It is characterized by the following.

  A fifth aspect of the present invention provides a cover in which a plug insertion opening for inserting a plug is opened at the front, a door slidably arranged along the plug insertion opening on the rear side of the cover to open and close the plug insertion opening, An urging spring that abuts on the door and urges the door in the direction to close the plug insertion port, and is formed on the rear side of the cover that is formed into a shape that can be attached to a mounting frame standardized for embedded wiring equipment. A body to be worn, and an outlet block used for signal connection between a plug attached to the body and inserted through a plug insertion port, a spring receiving portion receiving the other end of the biasing spring is provided on the body, A spring receiving member for receiving the other end of the biasing spring is constituted by the body.

  According to a sixth aspect of the present invention, there is provided a cover in which a plug insertion opening for inserting a plug is opened on the front surface, a door which is slidably arranged along the plug insertion opening on the rear surface side of the cover to open and close the plug insertion opening, A biasing spring that abuts on the door and biases the door in a direction to close the plug insertion opening, and a retainer that is separate from the cover and is attached to the rear side of the cover to hold the biasing spring between the cover and the cover. A board, a body attached to the rear side of the cover and attached in a state exposed to the construction surface, and an outlet block used for signal connection between a plug attached to the body and inserted through a plug insertion port The pressing plate is provided with a spring receiving portion for receiving the other end of the urging spring, and the pressing plate constitutes a spring receiving member for receiving the other end of the urging spring.

  According to a seventh aspect of the present invention, there is provided a cover in which a plug insertion opening for inserting a plug is opened at a front surface, a door which is slidably arranged along the plug insertion opening on a rear surface side of the cover to open and close the plug insertion opening, A biasing spring that abuts on the door and biases the door in the direction to close the plug insertion port, a body that is attached to the back side of the cover and that is mounted in a state where it is exposed on the construction surface, and a plug insertion port that is mounted on the body An outlet block used for signal connection with a plug inserted through the body, a spring receiving portion receiving the other end of the biasing spring provided on the body, and a spring receiving member receiving the other end of the biasing spring at the body Is constituted.

  The invention according to claim 8 is a cover which is disposed in front of an outlet block used for signal connection between the plug and the plug insertion direction and has a plug insertion opening for inserting a plug opened at the front, and a rear side of the cover. The door, which is slidably arranged along the plug insertion port and opens and closes the plug insertion port, a biasing spring that biases the door so that one end abuts on the door and closes the plug insertion port, is separate from the cover. A holding plate attached to a rear surface side of the cover and holding a biasing spring between the cover and the cover.

  According to a ninth aspect of the present invention, in the invention of the eighth aspect, a guide portion is provided on a rear surface side of the cover in parallel with a direction of expansion and contraction of the biasing spring to guide the biasing spring from both sides, and a contact portion is provided on a peripheral edge of the holding plate. A support rib is provided on the rear surface of the cover, the support rib receiving a force for pressing the holding plate forward in contact with the holding plate.

  According to a tenth aspect of the present invention, there is provided a cover disposed forward of an outlet block used for signal connection with a plug in a plug insertion direction, wherein a plug insertion opening for inserting a plug is opened at a front side, and a rear side of the cover. The door, which is slidably arranged along the plug insertion port and opens and closes the plug insertion port, a biasing spring that biases the door so that one end abuts on the door and closes the plug insertion port, is separate from the cover. A holding plate attached to the rear side of the cover and holding the biasing spring between the cover and the cover, wherein the pressing plate is provided with a spring receiving portion for receiving the other end of the biasing spring; A spring receiving member for receiving the other end of the biasing spring.

  As described above, according to the first and second aspects of the present invention, after the door and the urging spring are placed on the cover, the pressing spring is held by covering the holding plate, and the body is attached to the cover. Since the assembling work can be performed, there is an effect that the assembling work of the door, the urging spring, and the holding plate can be easily automated. Moreover, by fixing the holding plate to the cover in a state where the door and the biasing spring are incorporated in the cover, the door portion can be blocked, and there is also an effect that parts of the door portion can be prevented from falling off during assembly. .

  According to the third aspect of the present invention, the biasing spring is held between the holding plate and the cover in a state where the biasing spring is guided by the guide portion parallel to the direction of expansion and contraction of the biasing spring. Even if an impact is applied, the biasing spring does not easily come off, and support ribs that come into contact with the peripheral edge of the holding plate and press the holding plate forward are projected from the rear surface of the cover. At this time, it is possible to prevent the pressing plate from being deformed due to an external force applied to the pressing plate, and to prevent the door from being opened and closed by the deformation of the pressing plate.

  In the invention of claim 4, since the other end of the biasing spring is received by the pressing plate separate from the cover, it is not necessary to incorporate the biasing spring in a compressed state when incorporating the biasing spring into the cover. Therefore, after placing the door and the biasing spring on the cover, cover the holding plate and hold the biasing spring, and perform assembly work by attaching the body to the cover. There is an effect that it is easy to automate the loading operation. In addition, by fixing the holding plate to the cover with the door and the biasing spring incorporated in the cover, the door can be blocked, and when the other parts are incorporated into the cover, the parts of the door may not fall off. There is also an effect that it can be prevented.

  In the invention of claim 5, since the other end of the biasing spring is received by the body separate from the cover, it is not necessary to incorporate the biasing spring in a compressed state when incorporating the biasing spring into the cover. After the door and the biasing spring are placed on the cover, the body can be attached to the cover to perform the assembling operation, so that the door, the biasing spring, and the body can be easily assembled. Moreover, since the spring receiving member for receiving the other end of the biasing spring is also used as the body, there is an advantage that the number of parts can be reduced.

  In the invention of claim 6, since the other end of the biasing spring is received by the pressing plate separate from the cover, it is not necessary to incorporate the biasing spring in a compressed state when incorporating the biasing spring into the cover, Therefore, after placing the door and the biasing spring on the cover, cover the holding plate and hold the biasing spring, and perform assembly work by attaching the body to the cover. There is an effect that it is easy to automate the loading operation. In addition, by fixing the holding plate to the cover with the door and the biasing spring incorporated in the cover, the door can be blocked, and when the other parts are incorporated into the cover, the parts of the door may not fall off. There is also an effect that it can be prevented.

  In the invention according to claim 7, since the other end of the biasing spring is received by the body separate from the cover, it is not necessary to incorporate the biasing spring in a compressed state when incorporating the biasing spring into the cover. After the door and the biasing spring are placed on the cover, the body can be attached to the cover to perform the assembling operation, so that the door, the biasing spring, and the body can be easily assembled. Moreover, since the spring receiving member for receiving the other end of the biasing spring is also used as the body, there is an advantage that the number of parts can be reduced.

  According to the eighth aspect of the present invention, the assembling work can be performed by placing the door and the urging spring on the cover, and then holding the urging spring by covering the pressing plate. There is an effect that it is easy to automate the loading operation. In addition, by fixing the holding plate to the cover in a state where the door and the biasing spring are incorporated in the cover, the door portion can be blocked, and the blocked door portion can be used for various types of outlets. .

  According to the ninth aspect of the present invention, the biasing spring is held between the holding plate and the cover in a state where the biasing spring is guided by the guide portion parallel to the direction of expansion and contraction of the biasing spring. Even if an impact is applied, the biasing spring does not easily come off, and support ribs that come into contact with the peripheral edge of the holding plate and press the holding plate forward are projected from the rear surface of the cover. At this time, it is possible to prevent the pressing plate from being deformed due to an external force applied to the pressing plate, and to prevent the door from being opened and closed by the deformation of the pressing plate.

  In the invention of claim 10, since the other end of the biasing spring is received by the pressing plate separate from the cover, it is not necessary to incorporate the biasing spring in a compressed state when incorporating the biasing spring into the cover, Therefore, after placing the door and the urging spring on the cover, the assembling work can be performed by covering the holding plate and holding the urging spring, so that the assembling work of the door, the urging spring and the pressing plate can be easily automated. This has the effect. In addition, by fixing the holding plate to the cover in a state where the door and the biasing spring are incorporated in the cover, the door portion can be blocked, and the blocked door portion can be used for various types of outlets. .

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
An embodiment of an outlet using the shutter block for an outlet according to the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, the direction of arrow ab in FIG. 2 will be described as the front-back direction, the direction of arrow cd will be the horizontal direction, and the direction of arrow ef will be the vertical direction.

  In the present embodiment, a modular jack A to which a modular plug is detachably connected will be described as an example. FIG. 2 is an exploded perspective view of an embedded modular jack A. The modular jack A has a shutter block 1 provided with a door 7 for opening and closing a plug insertion port 6 and a rear side of a cover 5 of the shutter block 1. It is composed of a modular block 3 (outlet block) used for signal connection between the body 2 to be attached and a plug attached to the body 2 and inserted through the plug insertion port 6.

  As shown in FIG. 1, the shutter block 1 is disposed in front of the modular block 3 in the plug insertion direction, and a cover 5 having a plug insertion opening 6 for inserting a plug opened in the front, and a rear side of the cover 5. A door 7 (upper door 8 and lower door 9) slidably disposed along the plug insertion port 6 to open and close the plug insertion port 6, and a pair of coils for urging the door 7 in a direction to close the plug insertion port 6. The springs 10, 10 (biasing springs) are separate from the cover 5 and are attached to the rear side of the cover 5 to hold the pair of coil springs 10, 10 between the cover 5 and the holding plate 11 (spring). Receiving member).

  The cover 5 is made of a resin molded product, has a rectangular shape when viewed from the front, and has a plug insertion opening 6 substantially at the center of the front. Side walls 12 projecting rearward from each side except the upper side of the cover 5 are formed continuously and integrally, and a pair of assembly claw pieces 13 projecting rearward from rear edges of both left and right sides are formed. On the rear surface of the cover 5, guide ribs 14, 14 extending vertically are formed on both left and right sides of the plug insertion port 6, and further project rearward from an opening edge of a substantially lower half of the plug insertion port 6. Guide projections 15 are formed. The distance between the guide ribs 14 and 14 is substantially the same as the width of the upper door 8, and the height of the guide ribs 14 and the height of the guide projections 15 are substantially the same (see FIGS. 4A and 4B). .

  The door 7 includes an upper door 8 and a lower door 9 made of resin, each of which is formed in a plate shape. On both left and right sides of the back surface of the upper door 8, a pair of locking grooves 31 whose upper ends are opened are formed along the vertical direction. The lower door 9 has an operation piece 17 protruding from a lower portion on the front side of a plate-shaped lower door body 16, and a pair of locking projections 18 respectively locking into locking grooves 31 at both upper ends thereof. . Further, on both left and right sides of the lower portion of the lower door body 16, spring receiving pieces 19, 19 are provided to protrude toward the side.

  The holding plate 11 is a resin molded product, and its shape as viewed from the front is formed in an inverted U-shape, and spring receiving pieces 20, 20 (spring receiving portions) having an L-shaped cross section are directed upward from both upper ends. It has been extended.

  The body 2 has a substantially box shape with an open rear surface, is formed in a substantially rectangular shape when viewed from the front surface, and has a projecting base 21 projecting forward at substantially the center of the front surface. A pair of connecting claws 27 project from the outer edges of the left and right steps of the protruding base 21, and connecting holes 28 are respectively opened on both left and right side surfaces of the protruding base 21. A protruding portion 44 is provided on the upper side of the front surface of the protruding base 21 so as to cover a portion of the cover 5 where the side wall 12 is not formed. A mounting hole 22 into which the front end of the modular block 3 is inserted is opened at the center of the protruding base 21, and locking grooves 23 opened to the front end side are respectively formed on both left and right end surfaces of the mounting hole 22 in the front-rear direction. Is formed along. Also, the assemblage 21 is formed with two assembly holes 24 on both sides of the mounting hole 22 to which the assembly claw pieces 13 of the cover 5 respectively fit. Further, a plate-like holding base 25 that comes into contact with the upper surface of the modular block 3 extends rearward from the upper end of the rear surface of the body 2, and further, from both left and right sides of the holding base 25, the side surfaces of the modular block 3 A horizontal wall 26 covering the upper half of the upper side extends downward.

  The modular block 3 includes a jack body 3a and a middle frame 3b attached to a front end of the jack body 3a. The middle frame 3b has a connecting portion 29 on the front surface to which the modular plug is connected, and a plurality (for example, eight) of connecting portions electrically connected to the plurality of contacts of the modular plug inside the connecting portion 29. (Not shown) are arranged. Eight conductive members each having a contact portion formed at one end are housed inside the jack body 3a, and a press-contact terminal is formed at the other end of each conductive member. The pressure contact terminal is a fork-shaped pressure contact type having a pressure contact slit having a lower end edge opened between a pair of blades. The width of the pressure contact slit is such that both side edges of the pressure contact slit are pressed against the core wire of the wire to be connected. It is set to the extent that. These eight press contact terminals are arranged in two rows of four on the rear lower surface of the jack body 3a, and a terminal cover 30 is detachably attached to a portion where the press contact terminals are disposed. . In addition, bending pieces 37 are provided at substantially the centers of both side surfaces of the middle frame 3b. The bending piece 37 has a front end connected to the middle frame 3b, and a rear end that is freely bendable in the left-right direction. 37a are formed. On both side surfaces of the middle frame 3b, locking projections 35 and 36 are provided on upper and lower sides of the bending piece 37, respectively.

  Next, the procedure for assembling the modular jack A will be described with reference to FIGS. Since the assembling operation is performed with the front surface of the cover 5 facing downward during assembling, the description of the assembling procedure will be made by defining the upper, lower, left, and right directions in the direction shown in FIG.

  First, as shown in FIGS. 4 (a) and 4 (b), with the cover 5 arranged with the front face down, the upper door 8 is placed on the back side of the cover 5 so as to cover the left half of the plug insertion port 6 in the drawing. (See FIGS. 4C and 4D). At this time, the side edges of the upper door 8 abut against the side surfaces of the guide ribs 14, 14, thereby restricting the vertical movement in FIG. 4 (d), and the right edge of the upper door 8 in the figure as a guide projection. By contacting the left end of F.15, the movement in the right direction in the figure is regulated.

  Next, as shown in FIGS. 4 (e) and 4 (f), the lower door 9 is placed above the upper door 8 and the guide projection 15 so that the operation piece 17 faces downward and covers the right half of the plug insertion port 6 in the drawing. Is placed. At this time, the locking projections 18 of the lower door 9 are inserted into the locking grooves 31 of the upper door 8. Further, spring receiving pieces 19 protruding from both sides of the lower door body 16 are inserted into a groove between the guide rib 14 and the side wall 12, and the lower door 9 slides along this groove.

  Next, as shown in FIGS. 4G and 4H, a pair of coil springs 10 is inserted into a groove between the guide rib 14 and the side wall 12, and one end of each coil spring 10 is inserted into the spring receiving piece 19. After each contact, as shown in FIGS. 5A and 5B, the holding plate 11 is inserted into the cover 5 from the upper side, and the spring receiving pieces 20 and 20 are attached to the other ends of the coil springs 10 and 10, respectively. Contact each other. Then, as shown in FIGS. 5 (c) and 5 (d), the holding plate 11 was slid to the right in the drawing, and the coil springs 10 were pressed by the respective spring receiving pieces 20, and the coil springs 10 were bent to a predetermined initial bending. In this state, the holding plate 11 is moved downward as shown in FIGS. 5 (e) and 5 (f), so that the projection 33 provided on the back surface of the cover 5 and the hole 34 of the holding plate 11 are fitted. The holding plate 11 is fixed to the cover 5 by a conventionally well-known method such as press-fitting, crimping, and thermal bonding.

  Thereafter, as shown in FIGS. 5 (g) and 5 (h), the body 2 is fitted into the cover 5 from above, and the assembling tabs 13 of the cover 5 are fitted into the assembling holes 24 of the body 2. And are combined. When the assembly claw 13 is fitted into the assembly hole 24, the assembly claw 13 can be easily fitted by the elasticity of the assembly claw 13 and the taper provided at the tip of the assembly claw 13. Then, the modular block 3 is inserted into the mounting hole 22 of the body 2, and the locking projections 35, 36 of the modular block 3 are brought into contact with the locking step portions 38, 39 formed on the inner surface of the body 2. The modular block 3 is connected to the body 2 by engaging the locking claw 37a of the 37 with the step at the upper end of the locking groove 23 formed on the inner surface of the body 2, thereby completing the assembly.

  Here, when inserting the modular plug from the plug insertion port 6, the plug insertion port 6 is opened by moving the operation piece 17 provided on the lower door 9 to the upper door 8 side by the modular plug. At this time, the projection 32 of the upper door 8 is pushed by the lower door body 16 and the upper door 8 is pushed by the operation piece 17, so that the upper door 8 moves together with the lower door 9, and the plug insertion port 6 is opened. You. When the modular plug is pulled out from the plug insertion port 6, the lower door 9 is pushed in a direction to close the plug insertion port 6 by the spring force of the coil spring 10, and the lower door 9 closes half of the plug insertion port 6. At this time, the locking projection 18 of the lower door 9 locks with the end of the locking groove 31 of the upper door 8, so that the upper door 8 moves together with the lower door 9, and the upper door 8 moves in conjunction with the lower door 9. To close the plug insertion port 6. 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 the door is closed, foreign matter such as dust does not enter the connection portion 29 of the modular block 3.

  By the way, in the present embodiment, since the other end of the coil spring 10 is received by the pressing plate 11 separate from the cover 5 as described above, the state where the coil spring 10 is compressed when the coil spring 10 is incorporated into the cover 5. Therefore, after the door 7 (the upper door 8 and the lower door 9) and the coil spring 10 are placed on the cover 5, the holding plate 11 is covered to hold the coil spring 10, and the body 2 is further covered. 5, the assembly work can be performed. In addition, in the case where the coil spring 10 has an initial flexure at the time of completion of the assembly as in the present embodiment, the coil spring 10 may be flexed by the press plate 11 when the press plate 11 is assembled. There is an advantage that the assembling work of the coil spring 10 and the holding plate 11 can be easily automated. Further, by fixing the holding plate 11 to the cover 5 in a state where the door 7 and the coil spring 10 are incorporated in the cover 5, the door portion can be blocked, and the blocked door portion (shutter block 1) can be a modular outlet. There is also an advantage that it can be used for various types of outlets such as a TV outlet, an optical outlet, an ISDN outlet, and a DSL outlet. Further, the shutter block 1 is attached to the body 2 (outlet main body) by engaging an assembly claw 13 as an elastic engagement means provided on the cover 5 with an assembly hole 24 of the body 2. Since the fixing tool such as the above is not used, the assembling work can be easily automated.

  In this embodiment, as shown in FIG. 6A, a total of four regulating ribs 40a to 40d projecting rearward from the back surface of the cover 5 are provided so as to protrude. As shown, the tips of the regulating ribs 40a to 40d abut on the holding plate 11, thereby restricting the movement of the holding plate 11 to the front, and the door 7 (the upper door 8 and the lower door 9) interfering with the holding plate 11. Can be prevented from becoming difficult to move. The upper two regulating ribs 40a, 40b are formed along the up-down direction and abut on a part of the peripheral surface of the coil spring 10, and guide the peripheral surface of the coil spring 10 with the regulating ribs 40a, 40b. By doing so, when the door 7 is opened (when the coil spring 10 is compressed), the coil spring 10 is buckled and the intermediate portion of the coil spring 10 is prevented from projecting in a direction obliquely crossing the axial direction.

  The center of the holding plate 11 projects forward (toward the cover 5) as compared to the left and right sides, and the lower door 9 is pressed toward the cover 5 by this center (pressing portion) 11a. Even if the thickness of the spring 10 in the front-rear direction varies and the distance between the left and right sides (the portion holding the coil spring 10) of the holding plate 11 and the cover 5 varies, the lower door is held at the center 11a of the holding plate 11. 9 can be held down.

  By the way, the above-mentioned body 2 is connected to a standardized mounting frame 50 as shown in FIG. This mounting frame 50 is for a large-sized three rectangular type that is standardized for an embedded type wiring device that is mounted in a form embedded in a mounting surface using a switch box according to JIS standards and standards of the Japan Wiring Equipment Manufacturers Association. Things. That is, the body 2 has the same shape and size as the unit size of the wiring device that can be attached to the standardized mounting frame. The mounting frame 50 has three pairs of holding holes 53 with which the coupling claws 27 are engaged on both side pieces 52a and 52b surrounding the opening window 51, and one side piece 52a is formed with the other side piece 52b. A flexure piece 54 is formed that can flex to change the distance. In addition, connecting holes 55a and 55b which surround the opening window 51 and are orthogonal to the side pieces 52a and 52b are provided with a long hole 56 for inserting a box screw for connecting the mounting frame 50 to the switch box, and a front surface of the mounting frame 50. A screw hole 57 and the like into which a plate screw 58 for attaching the covering decorative plate 59 is screwed are provided. In the decorative plate 59, a window hole 59a for exposing the front surface of the cover 5 and an insertion hole 59b for inserting the plate screw 58 are formed.

  Thus, when the modular jack A is mounted on the mounting frame 50, if the body 2 is pressed from behind the mounting frame 50, the bending piece 54 is bent, and the coupling claw 27 of the body 2 is engaged with the holding hole 53. Then, the body 2 (modular jack A) can be fitted to the mounting frame 50. At this time, the cover 5 attached to the front surface of the protrusion 21 projects from the opening window 51. On the other hand, when removing the modular jack A from the mounting frame 50, the locked state of the coupling claw 27 and the holding hole 53 may be released by prying the bending piece 54 with a driver or the like. The illustrated mounting frame is a mounting frame 50 made of a synthetic resin. However, in the case of a metal mounting frame, the mounting frame is formed by using coupling holes 28 opened on both right and left sides of the protruding base 21 of the body 2. You only need to combine them.

(Embodiment 2)
Embodiment 2 of the present invention will be described with reference to FIGS. In the first embodiment, when assembling the shutter block 1, the holding plate 11 and the cover 5 are joined by a method such as press-fitting, crimping, or thermal bonding. The locking claws 41, 41 protruding toward the front side are formed in a protruding manner, and the locking concave portions 42 respectively locking the locking claws 41 are formed on the inner surfaces of the side walls 12 of the cover 5, and the holding recesses 42 are held on the rear edges of the both side walls 12. A holding rib 43 which comes into contact with the rear surface of the plate 11 protrudes, and the holding claw 41 of the holding plate 11 and the locking recess 42 of the cover 5 are locked to connect the holding plate 11 and the cover 5. are doing. Since the configuration other than the cover 5 and the holding plate 11 is the same as that of the first embodiment, the same components are denoted by the same reference numerals and description thereof will be omitted.

  Next, a procedure for assembling the shutter block 1 will be described with reference to FIGS.

  First, as shown in FIGS. 7 (a) and 7 (b), with the cover 5 arranged with the front face down, the plug insertion opening 6 is formed on the back side of the cover 5 as shown in FIGS. 7 (c) and 7 (d). After the upper door 8 is placed so as to cover the left half in the drawing, the operation piece 17 is turned downward so as to cover the right half in the drawing of the plug insertion port 6 as shown in FIGS. The lower door 9 is placed above the upper door 8 and the guide projection 15.

  Next, as shown in FIGS. 8A and 8B, a pair of coil springs 10 is inserted into a groove between the guide rib 14 and the side wall 12, and one end of each of the coil springs 10 is respectively attached to the spring receiving piece 19. After that, as shown in FIGS. 8C and 8D, the holding plate 11 is inserted into the gap between the regulating ribs 40a to 40d and the holding rib 43 from the left side in the figure. When the holding plate 11 is slid to the right in the drawing while pressing the other ends of the coil springs 10 and 10 with the spring receiving pieces 20 and 20 of the holding plate 11, the locking claws 41 of the holding plate 11 contact the side walls 12. In contact, the side wall 12 is bent outward. When the holding plate 11 is slid to the right end in the drawing, the locking claws 41 of the holding plate 11 are locked with the locking recesses 42 formed on the side wall 12 as shown in FIGS. The holding plate 11 is fixed to the cover 5, and the door 7 and the coil spring 10 are held between the holding plate 11 and the cover 5. The shutter block 1 is assembled as described above, but the subsequent assembling procedure is the same as that of the first embodiment, and thus the description thereof is omitted.

  As described above, in this embodiment, the cover 5 and the pressing plate 11 are connected by fitting the locking claws 41 of the pressing plate 11 into the locking recesses 42 of the side wall 12, so that a separate member is used. There is an advantage that the cover 5 and the holding plate 11 can be connected without any need, and the automation of assembly can be easily performed.

(Embodiment 3)
Embodiment 3 of the present invention will be described with reference to the drawings. In the first embodiment, one end of the coil spring 10 is received by the door 7 (lower door 9), and the other end of the coil spring 10 is received by the pressing plate 11, whereas in the present embodiment, the pressing plate 11 is eliminated. The body 2 also serves as a spring receiving member for receiving the other end of the coil spring 10. It is to be noted that, except for the point that the holding plate 11 is not provided, the configuration is the same as that of the first embodiment.

  The procedure for assembling this modular jack will be described with reference to FIGS. Procedures until the upper door 8, the lower door 9, and the coil spring 10 are incorporated into the cover 5 are the same as the procedures in FIGS. 4A to 4H described in the first embodiment, and thus description thereof will be omitted.

  In a state where the upper door 8, the lower door 9, and the coil spring 10 are incorporated in the cover 5 as shown in FIGS. 4 (g) and 4 (h), as shown in FIGS. The body 2 is moved to the cover 5 side, and the other end of the coil spring 10 is pushed by the projecting portion 44 (spring receiving portion) of the body 2, and the body 2 is slid to the right side in the figure as shown in FIGS. Then, the coil spring 10 is bent by the overhanging portion 44 up to a predetermined initial bending, and the positions of the assembly holes 24 of the body 2 and the assembly claw pieces 13 of the cover 5 are aligned. The body 2 is coupled to the cover 5 by moving the body 2 downward (to the cover 5 side) and fitting the assembly claw pieces 13 into the assembly holes 24 as shown in FIG. At this time, the door 7 (the upper door 8 and the lower door 9) and the coil spring 10 are held between the cover 5 and the holding piece 2a formed integrally with the body 2 on the front surface of the body 2. Note that the subsequent mounting procedure (the mounting procedure of the modular block 3) is the same as that of the first embodiment, and a description thereof will be omitted.

  As described above, in this embodiment, since the other end of the coil spring 10 is received by the body 2 separate from the cover 5, it is necessary to incorporate the coil spring 10 in a compressed state when incorporating the coil spring 10 into the cover 5. Therefore, after placing the door 7 (the upper door 8 and the lower door 9) and the coil spring 10 on the cover 5, the body 2 is attached to the cover 5 and the coil spring 10 is held to perform the assembling operation. Further, in the case where the coil spring 10 is given an initial flexure at the time of completion of the assembly as in the present embodiment, the coil spring 10 may be flexed by the projecting portion 44 of the body 2 when the body 2 is attached. There is an advantage that the assembling work of the door 7 and the coil spring 10 can be easily automated. Further, since the body 2 also serves as a spring receiving member for receiving the other end of the coil spring 10, there is an advantage that the number of parts can be reduced.

  In this embodiment, the body 2 is slid in the direction in which the coil spring 10 is compressed, and the body 2 is moved toward the cover 5 in a state where the coil spring 10 is flexed by a predetermined initial flexure. Although fixed, as described in the second embodiment, the body 2 is slid in the direction in which the coil spring 10 is compressed, and the coil spring 10 is provided on the cover 5 in a state where the coil spring 10 is bent by a predetermined initial bending. The body 2 and the cover 5 may be coupled by providing the body 2 with a locking claw that hooks and locks with the locking concave portion, and locks the locking claw with the locking concave portion.

(Embodiment 4)
Embodiment 4 of the present invention will be described with reference to FIGS. In the first embodiment, when the holding plate 11 is incorporated, the coil spring 10 is pressed by the spring receiving piece 20 of the holding plate 11, and the holding plate 11 is slid in the direction of compressing the coil spring 10, and the coil spring 10 is moved to a predetermined initial state. While the holding plate 11 is fixed to the cover 5 in a state of being bent only by bending, in the present embodiment, the coil spring 10 is in a state where the door 7 closes the plug insertion opening 6 (assembly completed state). Is set so that the length of the coil spring 10 becomes a free length. That is, the length (mounting length) of the coil spring 10 at the time of assembly is a free length. The components other than the coil spring 10 are the same as those in the first embodiment, and therefore, the same components are denoted by the same reference numerals, and description thereof will be omitted.

  The procedure for assembling the shutter block 1 will be described with reference to FIGS.

  First, as shown in FIGS. 10 (a) and 10 (b), with the cover 5 arranged with the front face down, the plug insertion port 6 is inserted into the back side of the cover 5 as shown in FIGS. 10 (c) and 10 (d). The upper door 8 is placed so as to cover the left half in the figure, and the operation piece 17 faces downward so as to cover the right half in the figure of the plug insertion port 6 as shown in FIGS. The lower door 9 is placed above the upper door 8 and the guide projection 15.

  Next, as shown in FIGS. 11A and 11B, a pair of coil springs 10 is inserted into a groove between the guide rib 14 and the side wall 12, and one end of each coil spring 10 is inserted into the spring receiving piece 19. After the contact, as shown in FIGS. 11 (c) and 11 (d), the holding plate 11 is assembled into the cover 5 from the upper side in the drawing, and as shown in FIGS. The spring receiving piece 20 is brought into contact with the other end of the coil spring 10, and the projection 33 protruding from the back surface of the cover 5 is fitted to the hole 34 of the holding plate 11, and the conventional method such as press-fitting, crimping, and heat-sealing is applied. The holding plate 11 is fixed to the cover 5 by a known method. At this time, the door 7 and the coil spring 10 are held between the holding plate 11 and the cover 5, and the assembly of the shutter block 1 is completed. The shutter block 1 is assembled as described above, but the subsequent assembling procedure is the same as that of the first embodiment, and thus the description thereof is omitted.

  As in the first embodiment described above, when the coil spring 10 is bent by the pressing plate 11 when the pressing plate 11 is assembled, the mounting direction of the pressing plate 11 is determined. Since the length of the coil spring 10 is set to a free length and the coil spring 10 does not need to be bent when the holding plate 11 is assembled, the degree of freedom in the mounting direction of the holding plate 11 is increased. Therefore, the door 7 (the upper door 8 and the lower door 9), the coil spring 10, and the holding plate 11 can be incorporated into the cover 5 from the same direction (a direction substantially orthogonal to the front surface of the cover 5), and automation of assembly can be achieved. There is an advantage that it becomes easier. In the third embodiment, similarly to the present embodiment, the length of the coil spring 10 at the time of assembly may be set to a free length, and the degree of freedom in the assembly direction of the body 2 is increased. The door 7 (the upper door 8 and the lower door 9), the coil spring 10 and the body 2 can be incorporated into the cover 5 from the same direction (a direction substantially orthogonal to the front surface of the cover 5). This has the advantage of being easier.

(Embodiment 5)
Embodiment 5 of the present invention will be described with reference to FIG. In each of the embodiments described above, the embedded type body 2 is used. However, in the present embodiment, instead of the embedded type body 2, the embedded type body 2 is attached to the rear surface side of the cover 5 so as to be exposed to the construction surface. The body 4 is used. Since the configurations of the shutter block 1 and the modular block 3 are the same as those of the first embodiment, the same components are denoted by the same reference numerals, and description thereof will be omitted. In the following description, unless otherwise specified, the direction of arrow ab in FIG. 12 is described as the front-back direction, the direction of arrow cd is the left-right direction, and the direction of arrow ef is the up-down direction.

  The modular jack B according to the present embodiment is an exposed type modular jack that is attached in a state of being exposed on a construction surface, and includes a shutter block 1, a modular block 3, a body 4, an upper cover 45, a magnet 46, and a chip. 47.

  The body of the modular jack B is formed in a rectangular parallelepiped shape from a synthetic resin such as an ABS resin having excellent impact resistance, and is provided with the shutter block 1 and the modular block 3 and exposed to a construction surface such as a wall surface. And a top cover 45 detachably attached to the body 4 so as to cover the modular block 3. At the four corners of the upper surface of the body 4, assembling protrusions 48 protrude, and engagement holes 48 a are formed on the outer surfaces of the assembling protrusions 48, respectively. On the other hand, on the inner surface of the upper cover 45, an assembling claw (not shown) is protrudingly provided at a portion of the assembling projection 48 facing the engaging hole 48a. By doing so, the upper cover 45 is detachably attached to the body 4.

  On the front side of the body 4, a side wall 49 on which the shutter block 1 is attached to the front side is protruded. The front surface of the side wall 49 is recessed from the front surface of the body 4 so that the front surface of the shutter block 1 and the front surface of the body 4 are substantially flush with each other. A hole 49a opens. Engagement grooves 49c open to the front end side are formed on both left and right end surfaces of the mounting hole 49a along the front-rear direction. Further, two assembly holes 49b into which the assembly claw pieces 13 of the cover 5 are fitted are formed on the left and right sides of the mounting hole 49a on the front surface of the side wall 49, respectively. A projecting portion 49d that protrudes a portion where the side wall 12 is not formed is protruded.

  At the rear of the body 4, a tension stopper 4a for stopping tension of the electric wire connected to the modular block 3 is provided. The tension stopping portion 4a is composed of a pair of elastic locking claw pieces 4b whose front ends are opposed to each other. The tension stopping portion 4a stops the tension by clamping an electric wire inserted between the elastic locking claw pieces 4b, 4b.

  Also, a magnet recess (not shown) is provided on the bottom surface of the body 4, and the magnet 46 is housed in the magnet recess. The magnet 46 includes a strip-shaped permanent magnet piece 46a and a substantially U-shaped yoke 46b. The center piece of the yoke 46b is brought into contact with one of the magnetic poles of the permanent magnet piece 46a, and the end faces of the two leg pieces of the yoke 46b are connected. The permanent magnet piece 46a is formed so as to face the side of the other magnetic pole. Therefore, if the construction surface is a magnetic material such as iron, a closed magnetic path is formed between the permanent magnet piece 46a and the yoke 46b via the construction surface and magnetically attached to the construction surface. Therefore, by magnetically attaching the magnet 46 to the construction surface made of a magnetic material, the body 4 can be mounted in a state where the body 4 is exposed to the construction surface without using fixing devices such as screws. It is needless to say that the fixing means of the body 4 is not limited to the magnet 46, and the body 4 may be attached to the construction surface using a conventionally known fixing tool such as a screw.

  The upper cover 45 has a substantially box shape with an open lower surface, a cutout portion 45a into which the shutter block 1 fits is formed on the front surface, and a cutout (not shown) for inserting an electric wire is formed on the rear surface. A chip housing recess 45b for housing the chip 47 is formed on the front side of the upper surface of the upper cover 45, and a fitting hole 45c is formed through the bottom surface of the chip housing recess 45b. The chip 47 is for displaying the wiring system of the electric wires connected to the modular block 3 in color, and a tape of a predetermined display color is attached to the surface of the chip 47. A pair of connecting claws 47a protrude from the lower surface of the chip 47. When the chip 47 is inserted into the chip housing recess 45b of the upper cover 45, the connecting claw 47a is engaged with the hole edge of the fitting hole 45c. , Chip 47 is attached to upper cover 45.

  The procedure for assembling the modular jack B will be described below. When the shutter block 1 assembled in the same procedure as in the first embodiment is assembled into the body 4 from the front side, the assembly claw pieces 13 of the cover 5 are inserted and locked in the assembly holes 49b, and the shutter block 1 is attached to the body 4. . Next, when the modular block 3 is inserted into the mounting hole 49a of the side wall 49 from the rear side, the locking projections 35 and 36 of the modular block 3 are fitted to locking step portions (not shown) provided in the mounting hole 49a of the body 4. At the same time, the locking claw 37a of the bending piece 37 locks with the locking groove 49c, and the modular block 3 is connected to the body 4. Thereafter, the upper cover 45 is put on the body 4 from above, and the engaging holes 48a of the assembly projections 48 provided on the body 4 are engaged with the assembly claws provided on the inner surface of the upper cover 45, so that the body 4 and the upper cover 45 Are combined, and the assembly is completed.

  In the present embodiment, the shutter block 1 described in the first embodiment is attached to the body 4 exposed on the construction surface, and in addition to the coil spring 10 for urging the door 7 in the closing direction, similarly to the first embodiment. Since the end is received by the holding plate 11 separate from the cover 5, it is not necessary to install the coil spring 10 in a compressed state when installing the coil spring 10. Therefore, the door 7 (the upper door 8) is placed on the cover 5. After the lower door 9) and the coil spring 10 are placed, the holding operation is performed by covering the holding plate 11 with the coil spring 10 and attaching the body 4 to the cover 5, so that the door 7, the coil spring 10, and the holder There is an advantage that the assembling work of the plate 11 can be easily automated. In this embodiment, similarly to the third embodiment, the holding plate 11 may be omitted, and the other end of the coil spring 10 may be received by the projecting portion 49d (spring receiving portion) of the body 4. The number of components can be reduced by also using the spring receiving member in 4.

  In each of the above embodiments, the spring receiving member is slid in the direction in which the biasing spring is compressed, and the biasing spring is bent by a predetermined initial bending. It is preferable that a locking claw for stopping is provided on the spring receiving member. According to this configuration, since the biasing spring is attached to the cover while being bent by the spring receiving member, it is possible to assemble even if the length of the biasing spring is long, and the locking claw is fitted to the locking recess. Since the cover and the spring receiving member are connected by hooking and locking, the cover and the spring receiving member can be connected without using a separate member.

  Further, in each of the above embodiments, the spring receiving member is slid in the direction of compressing the biasing spring, and moved to the cover side in a state where the biasing spring is bent by the predetermined initial bending, and is fixed to the cover. It is also preferred that According to this configuration, since the biasing spring is attached to the cover while being bent by the spring receiving member, assembly is possible even if the length of the biasing spring is long.

  Further, in each of the above embodiments, it is preferable to set the entire length of the biasing spring such that the length of the biasing spring is free when the door closes the plug insertion opening. According to this configuration, when the biasing spring is bent by the spring receiving member when the spring receiving member is incorporated, the mounting direction of the spring receiving member is determined. Since there is no need to bend, the degree of freedom in the mounting direction of the spring receiving member is increased, and automation of assembly is further facilitated.

  Further, in each of the above-described embodiments, the biasing spring is formed of a coil spring, and restricts the forward movement of the spring receiving member by abutting the spring receiving member on the surface of the cover facing the spring receiving member, It is also preferable to provide a regulating rib for regulating the intermediate portion of the coil spring from projecting in a direction obliquely intersecting with the axial direction when the door is opened by contacting the peripheral surface of the coil spring. According to this configuration, even if the spring receiving member is pressed against the cover, the forward movement of the spring receiving member is regulated by the regulating rib, so that it is possible to prevent the door from interfering with the spring receiving member and becoming difficult to move. This has the effect. In addition, since the regulating rib restricts the intermediate portion of the coil spring from projecting in a direction obliquely intersecting with the axial direction, the coil spring buckles when the coil spring is compressed, and moves in a direction obliquely intersecting with the axial direction. Projection can be prevented.

  Furthermore, in each of the above embodiments, it is preferable that the spring receiving member is provided with a pressing portion that protrudes toward the cover and presses the door toward the cover at the tip. According to this structure, since the door is pressed toward the cover by the pressing portion, the door can be pressed even if the thickness of the urging spring in the front-rear direction varies.

  In each of the above embodiments, it is also preferable to provide the cover with an elastic locking means for attaching to the outlet main body. According to this configuration, the cover is attached to the outlet main body by locking the elastic locking means provided on the cover to the outlet main body, and a fixing device such as a screw is not used. it can.

(Embodiment 6)
An embodiment of an outlet using the shutter block for an outlet according to the present invention will be described with reference to FIGS. In the following description, unless otherwise specified, the directions shown in FIG. 16A are defined in the up, down, left, and right directions, and the front in FIG. Therefore, the right end in FIG.

  In the present embodiment, an embedded modular jack A to which a modular plug is detachably connected will be described as an example. The modular jack A includes a shutter block 1 having a door 7 for opening and closing a plug insertion port 6 as shown in FIGS. 16 to 18, a body 2 attached to a rear surface side of a cover 5 a of the shutter block 1, A modular block 3 (outlet block) used for signal connection with a plug attached to the body 2 and inserted through the plug insertion port 6. Since the basic configuration of the modular jack A is the same as that of the first embodiment, common components are denoted by the same reference numerals, and description thereof is omitted.

  The shutter block 1 is disposed forward of the modular block 3 in the plug insertion direction. As shown in FIGS. 13 to 15, a cover 5 a having a plug insertion opening 6 for inserting a plug opened in the front, and a cover 5 a A door 7 (upper door 8a and lower door 9a) slidably disposed on the rear side along the plug insertion port 6 to open and close the plug insertion port 6, and biases the door 7 in a direction to close the plug insertion port 6. The pair of coil springs 10, 10 (biasing springs) and the cover 5a are separate bodies and are attached to the rear side of the cover 5a, and are interposed between the pair of coil springs 10, 10 and the cover 7a. And a holding plate 11b for holding the lower door 9a).

  The cover 5a is made of a resin molded product, has a rectangular shape when viewed from the front, and has a plug insertion opening 6 opened substantially at the center of the front. Side walls 12 protruding rearward are formed continuously and integrally from four sides of the cover 5a, and a pair of assembly claw pieces 13 protruding rearward are formed from rear edges of the left and right side walls 12, respectively. A positioning projection 84 that projects rearward is formed at a substantially intermediate portion of the assembly claw piece 13. At the four corners on the rear surface of the cover 5a, caulking projections 82 are respectively provided to project rearward. On the rear surface of the cover 5 a, guide ribs 14, 14 are formed on both left and right sides of the plug insertion port 6 so as to extend in parallel with the vertical direction (the direction of expansion and contraction of the coil spring 10). Guide projections 15, 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 width of the upper door 8a in the horizontal direction, and the height of the guide ribs 14 and the guide projections 15 (the amount of protrusion from the rear surface of the cover 5a) is equal to the upper door 8a. (See FIG. 18).

  The door 7 includes an upper door 8a and a lower door 9a made of resin, each of which is formed in a plate shape. The upper door 8a is in the shape of a horizontally long rectangular plate, and the upper part of the upper door 8a is formed to be wider than the middle part in the vertical direction. Protrusions 80, 80 are formed on both left and right sides. L-shaped locking pieces 81, 81 each having a tip protruding laterally from the left and right sides of the lower edge of the upper door 8a, are formed continuously and integrally. On the other hand, the lower door 9a has a rectangular plate-shaped lower door main body 16, and an operation piece 17 protruding forward is protruded from the lower front part of the lower door main body 16, and the upper door 8a is provided on both left and right ends of the upper front part. A pair of locking projections 18 respectively engaging with the left and right side edges are provided in a protruding manner. On both left and right sides of the lower portion of the lower door body 16, spring receiving pieces 19, 19 which receive one end of the coil spring 10 by engaging in guide grooves 88 formed between the side wall 12 of the cover 5a and the guide ribs 14. It protrudes toward.

  The holding plate 11b is made of a thin metal plate, and is formed in an inverted U-shape when viewed from the front, and a caulking hole for inserting the caulking protrusion 82 into a portion corresponding to the four caulking protrusions 82 provided on the cover 5a. 83 are respectively provided.

  On the other hand, the body 2 has a substantially box shape with an open rear surface, is formed in a substantially rectangular shape when viewed from the front surface, and has a protruding base 21 protruding forward substantially in the center of the front surface. A pair of connecting claws 27 project from the outer edges of the left and right steps of the protruding base 21, and connecting holes 28 are respectively opened on both left and right side surfaces of the protruding base 21. At the center of the front surface of the abutment 21, a mounting hole 22 into which the front end of the modular block 3 is inserted is opened. On the left and right inner surfaces of the mounting hole 22, locking grooves 23 opened to the front end side are respectively provided in the front-rear direction. It is formed along. Further, on the front surface of the protruding base 21, a pair of assembly holes 24 are formed on both right and left sides of the mounting hole 22 so that the assembly claw pieces 13 of the cover 5a are respectively fitted. Is formed with a positioning hole 85 into which the positioning protrusion 84 is fitted. Further, a plate-like holding base 25 which comes into contact with the upper surface of the modular block 3 extends rearward from the upper end of the rear surface of the body 2, and further, from both left and right sides of the holding base 25, the side surfaces of the modular block 3 A lateral wall 26 covering the upper half extends downward.

  The modular block 3 includes a jack body 3a and a middle frame 3b attached to a front end of the jack body 3a. The middle frame 3b has a connection portion 29 on the front surface to which the modular plug is connected, and a plurality (for example, eight) of contact pins electrically connected to the plurality of contacts of the modular plug inside the connection portion 29. 87 are arranged. In addition, a bending piece 37 is provided at substantially the center of both sides of the middle frame 3b. The front end of the flexible piece 37 is connected to the middle frame 3b, and the rear end of the flexible piece 37 is freely bendable in the left-right direction. The front half of the flexible piece 37 has a greater amount of lateral protrusion toward the rear. A locking claw 37a is formed. On both sides of the middle frame 3b, locking projections 35, 36 are provided on upper and lower sides of the bending piece 37, respectively.

  Eight conductive members (not shown) each having a contact pin 87 formed at one end are housed inside the jack body 3a, and a press-contact terminal (not shown) is formed at the other end of each conductive member. Have been. The pressure contact terminal is a fork-shaped pressure contact type having a pressure contact slit having a lower end edge opened between a pair of blades. The width of the pressure contact slit is such that both side edges of the pressure contact slit are pressed against the core wire of the wire to be connected. It is set to the extent that. These eight press contact terminals are arranged in two rows of four on the rear lower surface of the jack main body 3a, and a terminal cover 30 is detachably attached to a portion where the press contact terminals are disposed. Note that a display label 86 indicating the terminal arrangement of a plurality of press-contact terminals (not shown) arranged on the rear lower surface of the modular block 3 is attached to the lower surface of the holding base 25.

  Next, the procedure for assembling the modular jack A will be described. As shown in FIG. 15 (a), with the cover 5a arranged with the front face down, the upper door 8a covers the left half of the plug insertion port 6 in FIG. 15 (a) on the back side of the cover 5a. Is placed. At this time, the lateral edges of the upper door 8a abut against the side surfaces of the guide ribs 14, 14, thereby restricting the movement of the upper door 8a in the width direction. , The movement of the upper door 8a in the direction to close the plug insertion port 6 is restricted.

  Then, the lower door 9a is placed above the upper door 8a and the guide projections 15 and 15 so that the operation piece 17 faces downward so as to cover the right half of the plug insertion port 6 in FIG. At this time, the locking projections 18 of the lower door 9a are guided by both side edges in the width direction of the upper door 8a, and the spring receiving pieces 19 on the left and right sides of the lower door body 16 are respectively engaged in the guide grooves 88. Thereby, the lower door 9a slides along the up-down direction.

  Next, as shown in FIG. 15B, a pair of coil springs 10, 10 are inserted into the guide grooves 88, 88 so that 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 the rib rising from the rear surface of the cover 5a, the holding plate 11b is inserted into the cover 5a from above, and the four caulking projections 82 of the cover 5a are pressed against the holding plate 11b. The holding plate 11b is fixed to the cover 5a by swaging through the swaging hole 83.

  Thereafter, the body 2 is fitted into the cover 5a from above, and the assembly claws 13 of the cover 5a are fitted into the assembly holes 24 of the body 2, whereby the body 2 and the cover 5a are joined. When the assembly claw 13 is fitted into the assembly hole 24, the assembly claw 13 can be easily fitted by the elasticity of the assembly claw 13 and the taper provided at the tip of the assembly claw 13. Positioning projections 84 are projected from the rear edges of the left and right side walls 12 of the cover 5 a at a portion between the pair of assembly claw pieces 13, 13. By fitting, the cover 5a (shutter block 1) is positioned with respect to the body 2, so that the engagement allowance t between each of the assembly claw pieces 13 and the hole edge of the assembly hole 24 is made uniform, thereby ensuring reliability. It can be locked (see FIG. 18).

  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 connected to the body 2 by engaging the locking claw 37a of the bending piece 37 with the step at the upper end of the locking groove 23 formed on the inner surface of the body 2, and assembling the module. Complete.

  By the way, when connecting a modular plug to the modular jack A, the plug insertion port 6 is opened by moving the operation piece 17 provided on the lower door 9a to the upper door 8a side by the modular plug. At this time, the locking projections 80 of the upper door 8a are pushed by the upper edge of the lower door body 16, and the bases of the locking projections 80 are pushed by the locking projections 18 of the lower door 9a. When the lower edge of the upper door 8a is pushed by the operation piece 17, the upper door 8a moves together with the lower door 9a, and the plug insertion port 6 is opened. When the modular plug is pulled out from the plug insertion port 6, the lower door 9a is pushed by the spring force of the coil spring 10 in a direction to close the plug insertion port 6, and the lower door 9a closes half of the plug insertion port 6. At this time, the locking projections 18, 18 of the lower door 9a are locked with the receiving pieces 81, 81 of the upper door 8a, so that the upper door 8a moves together with the lower door 9a, and the upper door 8a interlocks with the lower door 9a. To close the plug insertion port 6. Therefore, when the modular plug is not inserted into the plug insertion slot 6, the upper door 8 a and the lower door 9 a close the plug insertion slot 6 by the spring force of the coil spring 10 regardless of the orientation of the modular jack. Since the door is closed, foreign matter such as dust does not enter the connection portion 29 of the modular block 3.

  Here, in the present embodiment, after the coil spring 10 and the door 7 (the upper door 8a and the lower door 9a) are incorporated into the cover 5a, the holding plate 11b is attached to the rear side of the cover 5a, and the cover 5a and the holding plate 11b Since the coil spring 10 and the door 7 are held in between, the door part can be made into a block, and the parts of the door part can be prevented from falling off during assembly. Also, after placing the coil spring 10 and the door 7 on the cover 5a, holding the coil spring 10 by covering the pressing plate 11b, and further attaching the body 2 to the cover 5a, the assembling work can be performed. There is an advantage that the assembling work of the coil spring 10 and the holding plate 11b can be easily automated. In the conventional example shown in FIG. 20, the door 7 and the coil spring 10 are incorporated in a cover 61 in which the cover 5a and the body 2 of the present embodiment are integrated, and the cover 61 is deep. Although it is difficult to assemble the coil spring 10 and the door 7, the cover 5 a of the shutter block 1 is separated from the body 2 having the coupling claws 27 and the coupling holes 28 for attaching to the mounting frame in this embodiment. The thickness (dimensions in the front-rear direction) of the cover 5a can be reduced, so that the door 7 and the coil spring 10 can be easily assembled.

  Further, in the present embodiment, guide ribs 14, 14 parallel to the direction of expansion and contraction of the coil spring 10 protrude from the rear surface side of the cover 5 a, and the coil springs 10, 10 are formed by the guide ribs 14, 14 and the left and right side walls 12, A guide plate 11b for holding the coil springs 10, 10 and the door 7 is attached to the rear side of the cover 5a between the cover 5a and the side wall 12 of the cover 5a against the peripheral edge of the cover plate 11b. The holding plate 11b is supported by being in contact with the holding plate 11b, and the holding plate 11b, the cover 5a and the holding plate 11b are guided in a state where the coil spring 10 is guided by the guide portions (the guide ribs 14 and the side walls 12) parallel to the direction in which the coil spring 10 expands and contracts. Therefore, even if an impact such as a drop is applied to the coil spring 10, the coil spring 10 is unlikely to come off.

  On the rear surface of the cover 5a, support ribs 12a and regulating ribs 40a to 40d which come into contact with the peripheral edge of the holding plate 11b and press the holding plate 11b forward are provided on the inner surface of the side wall 12 and the caulking projection 82, respectively. The supporting rib 12a and the regulating ribs 40a to 40d are brought into contact with the front side of the peripheral edge of the holding plate 11b, so that the force for pushing the holding plate 11b forward at the time of assembly is reduced. In addition, it is possible to prevent the pressing plate 11b from being deformed and prevent the door from being difficult to open and close due to the deformation of the pressing plate 11b.

  Further, since the holding plate 11b is fixed to the cover 5a by four points, the lower side of the holding plate 11 is fixed to the cover 5 by two points as in the first embodiment, and The holding plate 11b can be firmly fixed to the cover 5a as compared with the case where the press-fitting claw piece (not shown) provided is press-fitted and fixed to the cover 5, and the shutter block 1 is not subjected to impact such as dropping. Even if it is added, the holding plate 11b is hard to come off, and when the holding plate 11b comes off and the door 7 and the coil spring 10 fall off, it is necessary to reassemble. However, by firmly fixing the holding plate 11b, the shutter block 1 is fixed. Is prevented from decomposing. The holding plate 11b may be fixed to the cover 5a by a method other than caulking, or may be fixed by a conventionally known method such as press-fitting, crimping, or heat-sealing.

  Further, in the present embodiment, a pair of regulating ribs 89, 89 (stopper portions) protruding rearward from the pressing plate 11b above the back surface of the cover 5a and abutting against the front surface of the body 2 to regulate the forward movement of the body 2. ) Are provided on both left and right sides, and regulating ribs 89, 89 projecting rearward from the holding plate 11b abut on the front surface of the body 2, thereby restricting the movement of the body 2 in the forward direction. Therefore, the pressing plate 11b can be prevented from being deformed by pushing the pressing plate 11b forward by the body 2, and the pressing plate 11b interferes with the door 7 (the upper door 8a and the lower door 9a) due to the deformation of the pressing plate 11b. However, it is possible to prevent the opening and closing failure of the door 7 from occurring. Notches 16a, 16a for releasing the control ribs 89, 89 are provided on the side edges of the lower door body 16.

  By the way, in the present embodiment, the cover has a substantially rectangular shape when viewed from the front, and the caulking projections are respectively provided at the four corners of the rear surface of the cover, and the caulking projections are passed through the portions of the holding plate corresponding to the caulking projections. A caulking hole for tightening is provided. According to this configuration, the holding plate is fixed to the cover at four points by swaging the swaging protrusions provided at the four corners of the rear surface of the cover through the swaging holes of the holding plate. The holding plate can be firmly fixed, and it is possible to prevent the holding plate from coming off even when a shock such as a drop is applied.

  In the present embodiment, a stopper portion is provided on the rear surface of the cover so as to protrude rearward from the holding plate and abut on the body to regulate the forward movement of the body. According to this configuration, the stopper portion protruding rearward from the holding plate abuts on the body, thereby restricting the movement of the body in the forward direction, so that the holding plate is pushed forward by the body, It is possible to prevent the holding plate from being deformed, and prevent the door from being opened and closed poorly due to the deformation of the holding plate.

  Further, in the present embodiment, a pair of elastic locking portions are provided on both sides of the plug insertion opening on the rear surface of the cover so as to engage with the locked portion provided on the body, respectively. A positioning portion for positioning the cover with respect to the body is provided at a portion between the locking portions. According to this configuration, since the positioning portion for positioning the cover with respect to the body is provided at a portion between the pair of elastic locking portions on the rear surface of the cover, the pair of elastic locking portions are locked with the pair of elastic locking portions. The positional relationship between the elastic locking portions and the corresponding locked portions can be accurately determined, and the engagement between the respective elastic locking portions and the corresponding locked portions can be made uniform to ensure locking.

FIG. 3 is an exploded perspective view of the shutter block according to the first embodiment. FIG. 2 is an exploded perspective view of an embedded modular jack using the same. It is explanatory drawing which shows attachment to the attachment frame of an embedded modular jack same as the above. Fig. 3 shows an assembling procedure, in which (a), (c), (e), and (g) are cross-sectional views as viewed from the side, and (b), (d), (f), and (h) are views as viewed from above. Fig. 3 shows an assembling procedure, in which (a), (c), (e), and (g) are cross-sectional views as viewed from the side, and (b), (d), (f), and (h) are views as viewed from above. (A) is a view of the shutter block removed from the rear side, (b) is a sectional view of the shutter block viewed from above, and (c) is a view of the shutter block removed from the left side. It is sectional drawing. 9A and 9B show a procedure of assembling the shutter block according to the second embodiment, in which FIGS. 9A, 9C, and 9E are cross-sectional views as viewed from the side, and FIGS. 9B, 9D, and 9F are views as viewed from above. Fig. 3 shows the assembling procedure, in which (a), (c) and (e) are sectional views as viewed from the side, and (b), (d) and (f) are views as viewed from above. 9A and 9B show a procedure for assembling the shutter block according to the third embodiment, in which FIGS. 9A, 9B, and 9E are cross-sectional views as viewed from the side, and FIGS. 9B, 9D, and 9F are views as viewed from above. 9A and 9B show a procedure for assembling the shutter block according to the fourth embodiment, wherein FIGS. 9A and 9C are cross-sectional views as viewed from the side, and FIGS. 9B and 9D are views as viewed from above. Fig. 3 shows the assembling procedure, in which (a), (c) and (e) are sectional views as viewed from the side, and (b), (d) and (f) are views as viewed from above. It is an exploded perspective view of the exposure type modular jack using the shutter block of Embodiment 5. FIG. 15 is an exploded perspective view of a shutter block according to a sixth embodiment. 3A and 3B show a shutter block of the above, wherein FIG. 3A is an external perspective view seen from the rear side, and FIG. (A), (b) is explanatory drawing explaining the assembling procedure of the shutter block same as the above. FIG. 2 is an exploded perspective view of an embedded modular jack using the same shutter block. The modular jack of 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 which can break a part of modular jack same as the above. It is explanatory drawing of the state which integrated the modular block in the shutter block same as the above. It is an exploded perspective view of the conventional modular jack.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Shutter block 5 Cover 6 Plug insertion port 7 Door 8 Upper door 9 Lower door 10 Coil spring 11 Holding plate 20 Spring receiving piece

Claims (10)

  A cover with a plug insertion opening on the front side for inserting a plug, a door slidably arranged along the plug insertion opening on the back side of the cover to open and close the plug insertion opening, and one end abutting on the door to insert the plug An urging spring for urging the door in a direction to close the mouth, a pressing plate which is separate from the cover and is attached to a rear surface side of the cover and holds the urging spring between the cover and an embedded type; An outlet comprising: a body formed in a shape attachable to a mounting frame standardized for wiring equipment and attached to a rear surface side of a cover.   A cover with a plug insertion opening on the front side for inserting a plug, a door slidably arranged along the plug insertion opening on the back side of the cover to open and close the plug insertion opening, and one end abutting on the door to insert the plug An urging spring for urging the door in a direction to close the mouth, a pressing plate which is separate from the cover and is attached to a rear surface of the cover and holds the urging spring between the cover and a rear surface of the cover And a body attached to the body and mounted on the construction surface in an exposed state.   A guide portion is provided on the rear surface side of the cover to guide the urging spring from both sides in parallel with the direction of expansion and contraction of the urging spring, and receives a force for pressing the pressing plate forward by contacting the peripheral edge of the pressing plate. 3. The outlet according to claim 1, wherein the support rib is provided on a rear surface of the cover.   A cover with a plug insertion opening on the front side for inserting a plug, a door slidably arranged along the plug insertion opening on the back side of the cover to open and close the plug insertion opening, and one end abutting on the door to insert the plug An urging spring for urging the door in a direction to close the mouth, a pressing plate which is separate from the cover and is attached to a rear surface side of the cover and holds the urging spring between the cover and an embedded type; For signal connection between a body formed in a shape that can be attached to a mounting frame standardized for wiring equipment and attached to the rear side of the cover, and a plug attached to the body and inserted through a plug insertion port An outlet block for use, wherein the holding plate is provided with a spring receiving portion for receiving the other end of the biasing spring, and the holding plate constitutes a spring receiving member for receiving the other end of the biasing spring. .   A cover with a plug insertion opening on the front side for inserting a plug, a door slidably arranged along the plug insertion opening on the back side of the cover to open and close the plug insertion opening, and one end abutting on the door to insert the plug A biasing spring for biasing the door in a direction to close the mouth, a body formed in a shape attachable to a mounting frame standardized for an embedded wiring device and attached to a rear side of the cover; and a body. An outlet block attached to the plug and used for signal connection with a plug inserted through a plug insertion port, wherein the body is provided with a spring receiving portion for receiving the other end of the biasing spring; An outlet comprising a spring receiving member for receiving the other end of the socket.   A cover with a plug insertion opening on the front side for inserting a plug, a door slidably arranged along the plug insertion opening on the back side of the cover to open and close the plug insertion opening, and one end abutting on the door to insert the plug An urging spring for urging the door in a direction to close the mouth, a pressing plate which is separate from the cover and is attached to a rear surface of the cover and holds the urging spring between the cover and a rear surface of the cover A body attached to the body and attached to the construction surface in an exposed state, and an outlet block used for signal connection between a plug attached to the body and inserted through a plug insertion port, and biasing the holding plate. An outlet, comprising: a spring receiving portion that receives the other end of the spring; and a spring receiving member that receives the other end of the biasing spring by the pressing plate.   A cover with a plug insertion opening on the front side for inserting a plug, a door slidably arranged along the plug insertion opening on the back side of the cover to open and close the plug insertion opening, and one end abutting on the door to insert the plug A biasing spring for biasing the door in a direction to close the mouth, a body attached to the back side of the cover and attached in a state exposed to the construction surface, and a plug attached to the body and inserted through the plug insertion port. An outlet block used for signal connection between them, a spring receiving portion for receiving the other end of the biasing spring is provided on the body, and a spring receiving member for receiving the other end of the biasing spring is formed on the body. And outlet.   A cover that is located in front of the plug insertion direction with respect to the outlet block used for signal connection between the plug and the plug insertion opening for inserting the plug and that opens to the front, and the back of the cover along the plug insertion opening A door that is slidably arranged to open and close the plug insertion port, a biasing spring that biases the door in a direction in which one end contacts the door and closes the plug insertion port, and a rear surface of the cover that is separate from the cover A shutter plate for an outlet, comprising: a holding plate attached to a side and holding a biasing spring between the cover and a cover.   A guide portion is provided on the rear surface side of the cover to guide the urging spring from both sides in parallel with the direction of expansion and contraction of the urging spring, and receives a force for pressing the pressing plate forward by contacting the peripheral edge of the pressing plate. The shutter block for an outlet according to claim 8, wherein the support rib is provided on a rear surface of the cover. A cover that is located in front of the plug insertion direction with respect to the outlet block used for signal connection between the plug and the plug insertion opening for inserting the plug and that opens to the front, and the back of the cover along the plug insertion opening A door that is slidably arranged to open and close the plug insertion port, a biasing spring that biases the door in a direction in which one end contacts the door and closes the plug insertion port, and a rear surface of the cover that is separate from the cover And a pressing plate attached to the side to hold the urging spring between the cover and the cover. The pressing plate is provided with a spring receiving portion for receiving the other end of the urging spring, and the other end of the urging spring is provided by the pressing plate. A shutter block for an outlet, comprising a spring receiving member for receiving the power.

Images