JPH04115769U - Modular jack with dustproof cover - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the amount of dust that enters through the plug insertion port of a modular jack and to protect the thin spring contacts arranged inside the insulating body from dust. [Structure] A square cylindrical insulating body with a plug insertion opening is equipped with a dustproof cover that opens and closes the plug insertion opening. When the plug is not inserted, the dustproof cover closes the plug insertion opening by the biasing force of the spring, and when the plug is inserted, it is rotated by the insertion force of the plug, allowing the plug to be inserted.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is particularly useful for modular jacks used for connecting telephones, etc. A dustproof cover is attached to the plug insertion port to protect the contacts. It is something.

0002

[Prior art]

A connecting device called a modular jack is used to connect telephones. Ru. As is well known, modular jacks have a rectangular cylindrical insulating body and A back cover that covers the back of the rectangular cylindrical insulating body, and a strip spring connector supported by this back cover. It is composed of tact.

0003 A square plug insertion hole is formed on the front side of the insulating body. The plug is inserted and the contact part of the plug makes contact with the strip spring contact. The structure is such that a connection can be achieved. Since the plug insertion slot has a relatively large opening surface, dust can easily enter and cause damage to the plug. Failure to do so may cause an accident due to poor contact.

0004 For this reason, if you do not intend to insert the plug for a long period of time, it may be convenient to keep the lid closed. stomach. For this reason, conventionally a pseudo plug-shaped lid was prepared separately from the insulating body. We sell telephones with lids attached, or connection devices that can be attached to walls.

[0005]

[Problem that the idea aims to solve]

If you remove the pseudo-plug type lid, insert the plug, and put it into actual operation, The lid becomes unnecessary and is often lost, so you have to pull the plug again. When the modular jack is not in use, there is no cover and the plug insertion slot is open. It is often left alone.

[0006] This situation can be solved by, for example, installing modular jacks in multiple rooms. For example, when you use this modular jack to move your phone. This happened to a modular jack whose cover had been lost, and the plug insertion opening was subsequently opened. An inconvenient situation where the contacts are left unprotected and left unprotected. situation occurs.

[0007] The purpose of this invention is to prepare a dustproof cover that does not have to be lost and is not in use. For modular jacks, be sure to cover the plug insertion slot with a dustproof cover. The purpose of this project is to provide a modular jack with a dustproof cover.

[0008]

[Means to solve the problem]

In this design, a dustproof cover is installed over the plug insertion hole provided on the front of the rectangular cylindrical insulating body. In addition to being provided so that it can be opened and closed freely, the plug insertion port is usually closed using this dustproof cover. A spring is installed to maintain the dust cover in the closed position. It is designed to maintain the

[0009] According to the configuration of this invention, a dustproof cover is attached to the insulating body so that it can be opened and closed. Therefore, even if you insert the plug and then pull out the plug, the dust cover will be lost. There's no fear. However, when the plug is pulled out, the dust cover covers the plug insertion slot. It automatically returns to the normal state, so simply pulling out the plug will make it dust-proof and reliable. can improve sexual performance.

0010

【Example】

FIG. 1 shows an embodiment of this invention. The symbol 1 shown in Fig. 1 indicates a rectangular cylindrical insulating body. Point. In this invention, the upper surface of the insulating body 1 has a direction perpendicular to the plug insertion direction. A slit 2 is formed, and a dustproof cover 3 is inserted into this slit 2. Dust cover 3 The shaft 3A is integrally molded from a resin material. There is a slit 3 in the center of the shaft 3A. B and a window 3C are formed, and the spring 4 is attached to the shaft 3A through this slit 3B.

[0011] One end 4A of the spring 4 was rotated and biased in the direction shown by arrow K, and maintained in a downward position. Insert the dustproof cover 3 into the slit 2 in this state. Insert the dustproof cover 3 into the specified position. Then, one end 4A of the spring 4 becomes free and comes into elastic contact with the ceiling surface of the insulating body 1, and the dustproof cover is closed. Apply a rotational bias force to the bar 3. The rotation biasing force applied to the dustproof cover 3 is applied to the side edge of the plug insertion opening 5 of the insulating body 1. The plug is engaged with a protrusion 6 provided in the plug to maintain the plug insertion port 5 in a closed state.

0012 The protrusion 6 forms an elastic piece 8 by forming two notches 7 on both side walls of the insulating body 1. The elastic piece 8 is formed at its inner tip. There is an inclined surface on the tip side of the protrusion 6. and is configured to allow insertion of a plug (not specifically shown) through this inclined surface. do. In other words, when the plug is inserted, the plug pushes out the protrusion 6 and pushes the elastic piece 8. It is inserted by pushing it outward.

[0013] On the other hand, when inserting the plug, the dustproof cover 3 collides with the tip of the plug, and the plug is inserted. It is rotated upward by the force and is deflected until it is close to the ceiling surface as shown in Figure 2. be done. A plurality of notches 3D are formed in the dustproof cover 3 from its free end side. Pass through the strip spring contact 9 arranged inside the insulating body 1 by 3D. Ru.

[0014] The strip spring contact 9 is formed of a conductive spring material and inserted into the back cover 11. Supported. In this example, a plurality of slits 12 and a slit are provided on the ceiling surface of the insulating body 1. A partition wall 13 is formed between each of the slits 12, and a strip spring contact 9 is inserted into this slit 12. In the case where the tip is engaged and the position of the strip spring contact 9 is maintained shows. Further, the back cover 11 has protrusions 11A on both sides, and these protrusions 11A are attached to the insulating body. It engages with the window 1A formed in the insulating body 1 and is prevented from coming off, and closes the back side of the insulating body 1. Ru.

[0015] In addition, in this example, the strip spring contact 9 is formed by punching from a plate material. shows. In other words, the strip spring contact 9 is inserted and supported by the molding of the back cover 11. After that, the connecting member 9A is separated along the line A-A. Therefore, at this point Hoshobaneko The contact 9 becomes an independent contact and is insulated.

[0016]

[Effect of the idea]

As explained above, according to this invention, the plug insertion opening 5 of the insulating body 1 is When no plug is inserted, the dust cover 3 is closed. Therefore, for example, an indoor wall When used as a surface-mounted telephone connection device, it may not be plugged in for a long period of time. Since the dustproof cover 3 covers the plug insertion port 5 even if the plug is not plugged in for a long time, the insulating body It is possible to prevent dirt and the like from entering the interior of the housing 1. Therefore, Hosobananeko This prevents dust from adhering to the contact 9, resulting in poor contact accidents, and improves reliability. Can provide high modular jack.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing one embodiment of this invention.

FIG. 2 is a sectional view showing an embodiment of the invention.

[Explanation of symbols]

1 Insulating body 2 slits 3 Dust cover 4 spring 5 Plug insertion port 6 protrusions 7 Cut 8 Elastic piece 9 Strip spring contact 11 Back cover 12 slit 13 Bulkhead

Claims (1)

[Scope of utility model registration request] Claim 1: A rectangular cylindrical insulating body having a plug insertion opening on the front surface, a back cover that closes the back side of the insulating body supports a strip spring contact, and the strip spring contact is attached to the insulating body. In a modular jack configured to be elastically deformable inside the insulating body, a dustproof cover is provided at the plug insertion opening of the insulating body, one end of which is pivotally supported to open and close the plug insertion opening, and the dustproof cover is attached by a spring. The modular jack with a dustproof cover is constructed so that the plug insertion port is maintained in a closed state by the biasing force of the plug, and when the plug is inserted, the dustproof cover is rotated and biased to an open position by the insertion force of the plug.