JP2004533087A - Safety device for plug connection - Google Patents

Abstract

A safety device for improving the safety and reliability of a plug connection device is provided.
A safety device (2) for plug connection has a collar-shaped housing (2a) that can be fixed to a front portion of a socket (1) with a fixing device (2c). ) Is such that when the plug (3) is connected to the socket (1), the end of the unlocking tongue (3b) projecting from the plug (1) fits completely inside the housing (2a). The housing (2a) has a key hole (2d) on the side surface, and the unlocking tongue member (3b) is rotatable by a key (5) fitted into the key hole (2d). The key hole (2d) is appropriately arranged in relation to the position of the unlocking tongue member (3b) so that the plug connection can be released thereby.
[Selection] Figure 2

Description

【Technical field】
[0001]
The invention relates to a safety device for a plug connection according to the preamble of claim 1 and a plug connection system having such a safety device.
[Background Art]
[0002]
For example, plug-in systems are known which are equipped as a number of modules for connecting telephone lines, computer systems or networks to one another. For example, the RJ-45 plug connector is standardized according to IEC 60'603-7 and is a worldwide standard for plug connectors in communications and data networks. Such a plug connection device includes a plug and a socket. Usually, in this socket, a rack or a so-called draw-in portion is arranged in the outlet.
[0003]
Currently, modernly equipped configurations include so-called international building cabling (UGV) with multiple sockets, interconnecting analog or digital telephones, telefax devices, computers, printers and modems as needed. .
[0004]
Disadvantages include the fact that unintentional release / locking of known plug connection devices, ie international building cabling, leads to connection problems and network defects. Eliminating such network imperfections is expensive, unstable, and, in extreme cases, can cause the entire computer system to fail together. Therefore, it is most important to ensure a reliable and reliable plug connection.
DISCLOSURE OF THE INVENTION
[Problems to be solved by the invention]
[0005]
It is an object of the present invention to create a safety device for improving the safety and reliability of a plug connection device.
[Means for Solving the Problems]
[0006]
This object is solved by a safety device according to the invention having the features of claim 1. The dependent claims 2 to 9 relate to further advantageous embodiments of the safety device according to the invention. This object is further solved by a plug connection system having the features of claim 10.
[0007]
The above object is solved in particular by a safety device for a plug connection. The plug has an unlocking tongue, which forms a releasable connection with the locking projection of the socket, wherein the safety device has a collar-shaped housing; The housing can be secured to the front of the socket by fasteners, and such that when the plug is connected to the socket, the end of the unlocking tongue projecting from the plug fits completely inside the housing. , The housing is formed so as to be adapted for plug connection, and the housing further has a key hole for receiving the unlocking tongue member, and the unlocking tongue is formed by a key fitted in the key hole. The keyhole is formed in relation to the position of the unlocking tongue so that the member is rotatable so that the plug connection can be released.
[0008]
It has been recognized that UGV, a nuisance defect in the network, is caused by a defect in the operation of the plug connection device or a hardware defect that appears in the plug connection device or cable. A problem arises with daily input. For example, if the office is changed and the computer is connected to the network at a new location, the problem arises that the plugged-in device is disconnected by unauthorized persons. An advantage of the safety device of the present invention is that unauthorized disconnection of the plug connection is no longer possible, so that the security and reliability of the plug connection or network or the security and reliability of the overall building cabling is reduced. Essentially improve.
[0009]
An advantage of the socket equipped with a safety device according to the invention is that an unlocking means, for example in the form of a key, is required to separate the plug connection. Thereby, unintended and / or unauthorized separation is prevented. Furthermore, the unlocking means or key is provided, for example, only to a legitimate person and is operated with corresponding readiness and corresponding expertise.
[0010]
The safety device of the present invention can be easily and quickly installed in existing sockets to allow the closure of existing plug connections, such as RJ-45 plug connections. Have a profit. This essentially improves the security of the network or UGV at low cost.
[0011]
The safety device according to the invention has a housing fixed to the front of the socket. The plug also has the unlocking tongue described above forming a releasable connection with the socket. The housing is formed such that the unlocking tongue is completely inside the housing when the plug is inserted into the socket. In that case, the housing is designed so that the unlocking tongue cannot be operated without a special tool or key. The housing has a keyhole into which a corresponding suitable key can be inserted. When operating the key, a keyhole is located in the housing and the key is formed so that the unlocking tongue is moved, thereby releasing the plug connection and the plug can be pulled out of the socket.
BEST MODE FOR CARRYING OUT THE INVENTION
[0012]
In the following drawings, the same objects are denoted by the same reference numerals. With respect to the key, the instrument cooperating with the opening or keyhole 2d is generally understood as described below.
[0013]
FIG. 1 shows a socket 1 having an internal space 1a, a housing 1b and an electrical connection or switch member 1c. The socket 1 is a normal standardized component. The illustrated socket 1 is a component for RJ-45 plug connection. The illustrated configuration of this socket 1 is generally known. The socket 1 is fitted into, for example, a front plate 1d having four openings 1e functioning as fitting-type fixed openings. In this socket, a rack and a draw-in portion can be arranged in a connection box (not shown).
[0014]
A safety device 2 is arranged in front of the socket 1 and has a collar-shaped housing 2a. Four fitting fixtures 2c projecting in the direction of the socket 1 are fixedly connected to the housing 2a. The housing 2a has a guide 2b for the plug 3 therein. Further, the housing 2a has a key opening or key hole 2d at a lower portion thereof.
The front view of FIG. 1A shows that the housing 2a shown in FIG. 1 has an opening 2f and a recess 2e.
[0015]
The fitting type fixing device 2c can be inserted into the fitting type fixing opening 1e of the front plate 1d, whereby the safety device 2 is fixedly connected to the socket 1 as shown in FIG. The plug 3 has a plug contact 3a and an unlocking tongue 3b having a contact portion. This plug 3 is connected to a cable 4. Further, FIG. 2 shows the posture of the plug 3 immediately before the plug 3 is inserted into the safety device 2, that is, the socket 1. When the plug 3 is inserted into the socket 1, the unlocking tongue-shaped member 3b bites into a locking projection 1f arranged on the socket 1 by a known method, as shown in the longitudinal sectional views of FIGS. Stop. Thereby, the plug 3 is securely held in the socket 1. As shown in FIG. 6, the connection with the locking projection 1f is released again by pressing the unlocking tongue 3b, and the plug 3 is pulled out of the socket 1.
[0016]
As can be seen from the longitudinal section of FIG. 7, when the plug 3 is connected to the socket 1, the housing 2a is unlocked so that the unlocking tongue 3b is completely located inside the housing 2a. It is suitably formed in relation to the tongue 3b. As a result, the unlocking tongue 3b is not directly accessible from the outside and cannot be directly operated together therewith.
[0017]
FIG. 3 shows the plug 3 connected to the socket 1. The key 5 is inserted into the key hole 2d of the safety device 2 along the moving direction 5a. The key 5 has a key main claw 5b, a coupling shaft 5c, a bearing 5d, a coupling 5e, and a grip 5f. The key hole 2d and / or a bearing portion 2h arranged on the surface of the housing 2a form a bearing, on which the key 5 is supported so as to be rotatable about a shaft 5a.
[0018]
FIG. 4 shows the arrangement according to FIG. 3, wherein the key 5 is completely inserted into the safety device 2. FIG. 8 is a longitudinal sectional view showing the attitude of the key main claw 5b inside the housing 2a. When the key main claw 5b is placed under the unlocking tongue 3b, and the key 5, that is, the rotation of the key main claw 3b pushes up the unlocking tongue 3b as shown in FIG. The key hole 2d is arranged in the safety device 2 so that the connection between 1f and the contact portion 3b is released, and the plug 3 of the cable 4 can be pulled out from the socket 1. The height of the recess 2e is adapted in relation to the position of the unlocking tongue 3b so as not to disturb the unlocking tongue 3b when the plug 3 is pulled backward. The inner edge 2m can be formed to be used as a further abutment for the unlocking tongue 3b, including the locking projection 1f.
FIG. 5 shows the arrangement according to FIG. 4, but with the key 5 partially rotated.
[0019]
FIG. 10 shows a different embodiment of the housing 2a in the safety device 2 in a front view, and FIG. 11 shows a perspective view. Unlike the safety device 2 shown in FIG. 1, it has a holding part 2n, into which the core 2i can be inserted by moving along the direction A. Each of the three cores 2i shown in FIGS. 12 (a), 12b and 12c has a key hole 2d of various forms with a void 21. Further, these cores 2i have protruding nose-like projections 2k. These cores 2i can be inserted into the holder 2n. As a result, the key hole 2d comes to the side of the bearing portion 2h, and the nose-like projection 2k is located in the through portion 2g. FIGS. 14 (a), 14b and 14c show a key main claw 5b, which extends essentially like water drops and has a surface acting on the unlocking tongue 3b and a key sub-claw 5g. The key 5 is formed in an appropriate shape corresponding to the key hole 2d shown in FIGS. 12 (a), 12b and 12c, and has a core 2i having the key hole 2d, a key main claw 5b and a key sub-claw 5g. And the keys 5 having a pair of keys. In a preferred embodiment, the paired core 2i and key 5 have the same characteristics, and are preferably characterized by the same color. Therefore, the core 2i and the key 5 attached thereto can be manufactured from the same color plastic. It can be seen from FIG. 10 that the nose 2k of the colored core 2i is arranged in the penetration 2g so that the color can be recognized from the front of the safety device 2. Therefore, it is only necessary to select a key of the same color, and the plug connection can be separated by the key 5. For this reason, the safety devices 2 with the various keys 5 can be equipped in a simple manner. Also, the safety device 2 shown in FIGS. 1 to 9 can have variously formed key holes 2d, and accordingly, correspondingly variously formed keys 5 are required to separate the plug connection. In addition, the safety device 2 and the key 5 can be provided with features such as colors.
[0020]
FIG. 13 is a plan view of the key 5 having the key main claw 5b, the key sub-claw 5g, the shaft 5c, the bearing 5d, the coupling 5e, and the grip 5f.
In an advantageous embodiment, the safety device 2 has a packing, for example, the packing is arranged in the opening 2f and seals the interior space of the housing 2a to the outside or protects it from moisture or dust.
As is evident from FIG. 1 (a), the safety device 2 may have a left and right bearing part 2h and a keyhole 2d in the vicinity thereof, so that the key 5 can be inserted into the safety device 2 from the left or the right.
[Brief description of the drawings]
[0021]
A number of embodiments of the present invention will be described with reference to the following drawings.
FIG. 1 is a perspective view of a socket and a safety device.
FIG. 1 (a) is a front view of a housing of a safety device.
FIG. 2 is a perspective view showing a disconnected state of a socket and a plug to which a safety device is attached.
FIG. 3 is a perspective view showing a connection state between the safety device and the plug shown in FIG. 2, and a key before insertion.
FIG. 4 is a perspective view showing a connection state between the safety device and the plug shown in FIG. 3 and an inserted key.
FIG. 5 is a perspective view showing a connection state between the safety device and the plug shown in FIG. 3, and a key that is inserted and partially rotated.
FIG. 6 is a longitudinal sectional view of a main part of the plug connection device.
FIG. 7 is a longitudinal sectional view of a main part of a plug connection device having a safety device.
8 is a longitudinal sectional view showing a state where a key is inserted into the plaque connection device shown in FIG. 7;
9 is a longitudinal sectional view showing a state where a key is inserted into the plaque connection device shown in FIG. 7 and the key is completely rotated.
FIG. 10 is a front view showing another example of the housing of the safety device.
FIG. 11 is a perspective view of the housing of FIG. 10;
12A is a perspective view showing an example of a core used in the safety device shown in FIG.
12 (b) is a perspective view showing another example of the core used in the safety device shown in FIG.
FIG. 12C is a perspective view showing still another example of the core used in the safety device shown in FIG. 11;
FIG. 13 is a plan view of a key.
FIG. 14 (a) is a perspective view of an essential part showing an example of a key main claw.
FIG. 14 (b) is a perspective view of a main part showing another example of a key main claw.
FIG. 14 (c) is a perspective view of a relevant part showing still another example of the key main claw.
[Explanation of symbols]
[0022]
DESCRIPTION OF SYMBOLS 1 Socket 1f Locking projection 2 Safety device 2a Housing 2c Fixing tool 2d Keyway 2g Penetration part 2h Bearing part 2i Core 2k Projection 2n Holding part 3 Plug 3b Unlocking tongue member 5 Key 5a Shaft 5b Key main claw 6 Packing

Claims (10)

A safety device (2) for connecting a plug between a socket (1) and a plug (3), comprising an unlocking tongue member (3b) of the plug (3) and a locking projection (1f) of the socket (1). ), The safety device (2) forming a releasable fixed connection part, the safety device (2) has a collar-shaped housing (2a), and the housing (2a) is provided with a fixing device (2c). And can be fixed to the front part of the socket (1), and when the plug (3) is connected to the socket (1), the unlocking tongue member (3b) protruding from the plug (1). The housing (2a) is formed so that the end of the housing (2a) is completely contained inside the housing (2a), and the housing (2a) has a key hole (2d) arranged on a side surface, The key hole (2d) is a key (5) fitted into the key hole (2d). The unlocking tongue member (3b) is formed in relation to the posture of the unlocking tongue member (3b) so that the plug connection can be released by pressing the unlocking tongue member (3b). ) Have a bearing part (2h) and / or a keyhole (2d), in which the key (5) has a shaft (5a). A safety device (2) characterized in that it is formed so as to be rotatable about a center. The key (5) has a key main claw (5b) formed so as to conform to the cross section of the key hole (2d), and the key main claw (5b) is connected to the unlocking tongue-like member (3b). The safety device (2) according to claim 1, characterized in that it has a co-functional surface. Due to the combination of the different forms of keyholes (2d) and the corresponding keys (5), the safety device (2) and the corresponding key (5) are associated in a characteristic manner, in particular by color marking. Safety device (2) according to claim 1 or 2, characterized in that it is provided with: The key hole (2d) is formed in the core (2i), and the housing (2a) has a holding part (2n) for receiving the core (2i). Safety device (2) according to any one of the preceding claims. Including a plurality of cores (2i) having different forms of key holes (2d) and a plurality of keys (5) having different forms of key main claws formed in conformity with the key holes (2d). Safety device (2) according to claim 4, characterized in that: The core (2i) and the key (5) are characterized by landmarks, and the mutually compatible core (2i) and key (5) have the same landmark, especially the same color. Safety device (2) according to claim 5, wherein The safety device (2) according to claim 6, characterized in that the housing (2a) is provided with a through portion (2g) so that the mark of the core (2i) can be seen from the outside. The core (2i) has a nose-like protrusion (2k), the nose-like protrusion is located in the through portion (2g), and the nose-like protrusion (2k) has a mark. Safety device (2) according to claim 7, characterized in that it is provided. Safety device (2) according to any one of the preceding claims, characterized in that the interior space of the housing (2a) is sealed off to the outside by a packing (6). Plug connection system comprising a safety device (2) according to one of the preceding claims, a socket (1), in particular an RJ-socket, a plug (3) and a key (5). .

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